U.S. patent application number 09/854232 was filed with the patent office on 2002-02-07 for seating unit having a horizontally positionable seat section.
Invention is credited to Williams, James A..
Application Number | 20020014795 09/854232 |
Document ID | / |
Family ID | 27108076 |
Filed Date | 2002-02-07 |
United States Patent
Application |
20020014795 |
Kind Code |
A1 |
Williams, James A. |
February 7, 2002 |
Seating unit having a horizontally positionable seat section
Abstract
A seating unit with at least one independently movable seat
sections, is disclosed which includes a main frame arranged for
support of a back rest in fixed relation thereto and one or more
seat frames for supporting the seat sections. Support tracks
slidably support each seat frame with respect to the main frame.
Each seat frame can be moved from a retracted position to an
extended position in relation to the main frame. A locking device
secures a respective seat frame in relation to the main frame in a
plurality of positions between the retracted position and the
extended position. Numerous seat frame embodiments are disclosed.
In addition, a unique cable-based actuation assembly is described
for manually positionable seat configurations. Electrically powered
versions are also disclosed in which one or more motors are
incorporated in the seating unit and provide powered extension and
retraction of one or more individual seats. Remote control systems
for electrically powered drives are also disclosed.
Inventors: |
Williams, James A.; (Galion,
OH) |
Correspondence
Address: |
Jay F. Moldovanyi
FAY, SHARPE, FAGAN, MINNICH & McKEE
Suite 700
1100 Superior Avenue
Cleveland
OH
44114
US
|
Family ID: |
27108076 |
Appl. No.: |
09/854232 |
Filed: |
May 11, 2001 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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09854232 |
May 11, 2001 |
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09169498 |
Oct 9, 1998 |
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60083170 |
Apr 27, 1998 |
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60141480 |
Jun 29, 1999 |
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60204656 |
May 17, 2000 |
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Current U.S.
Class: |
297/337 |
Current CPC
Class: |
A47C 1/023 20130101;
A47C 17/134 20130101 |
Class at
Publication: |
297/337 |
International
Class: |
A47C 001/023 |
Claims
I claim:
1. A seating unit having a movable seat, said unit comprising: a
seating unit base, said base comprising a support frame, a first
side wall, a second side wall, and a rear wall extending between
said first and second side walls; a backrest member extending
upward from said seating unit base, said backrest member
constituting at least a portion of said rearwall of said seating
unit base; a movable seat member disposed on said support frame and
between said first and second side walls, said seat member movably
coupled to said support frame such that the entirety of said seat
member may be displaced within a horizontal plane outward from said
support frame to one of a plurality of extended positions relative
to said support frame; and a locking assembly to selectively engage
said seat member to said support frame of said seating unit base to
thereby secure said seat member to said support frame after
displacing said seat member to said one of a plurality of extended
positions.
2. The seating unit of claim 1 wherein said first side wall, said
second side wall, said rear wall, and a lower periphery of said
backrest member define an interior chamber within said seating
unit, said interior chamber having a sufficient size to receive at
least a portion of said seat member when said seat member is
retracted into said seating unit.
3. The seating unit of claim 1 wherein said seat member includes a
seat frame coupled to said support frame of said seating unit base,
and a seat cushion disposed on said seat frame.
4. The seating unit of claim 3 wherein said seat frame comprises an
upwardly directed face upon which is disposed said seat cushion,
and a raised member along a rearward portion of said seat frame,
said raised member extending above said face of said seat frame,
said raised member serving to prevent displacement of said seat
cushion when moving said seat frame.
5. The seating unit of claim 4 further comprising an assembly for
releasably securing said seat cushion to said seat frame.
6. The seating unit of claim 5 wherein said assembly for releasably
securing said seat cushion to said seat frame includes at least one
hook and loop type fastener.
7. The seating unit of claim 1 wherein said locking assembly is in
the form of an electrically powered drive including an electric
motor secured to said seating unit base, said motor providing a
rotatable output shaft, a geared member engaged with said shaft, a
screw member secured to said movable seat member, said screw member
engaged with said geared member, wherein upon deactivation of said
motor, said seat member is secured in said one of a plurality of
extended positions.
8. The seating unit of claim 7 further comprising: a remote control
unit adapted to selectively activate said motor and thereby
selectively move said seat member to said one of a plurality of
extended positions.
9. A seating unit defining an interior chamber for storing a
movable seat, said seating unit comprising: a base including (i) a
first side, (ii) a second side opposite from said first side, (iii)
a rear wall extending between said first side and said second side,
and (iv) a support frame generally extending between said first
side, said second side, and said rear wall, wherein said first
side, said second side, and said rear wall define an interior
chamber; a movable seat coupled to said support frame, said seat
sized to span between said first side and said second side, and
positioned above said support frame; a coupling assembly securing
said seat to said base and enabling said seat to be moved relative
to said base, between a fully retracted position in which at least
a portion of said seat is positioned within said interior chamber
and a fully extended position in which a majority of said seat is
outside of said chamber, said coupling assembly further enabling
said seat to be positioned and releasably locked to one of a
plurality of positions between said fully retracted position and
said fully extended position.
10. The seating unit of claim 9 further comprising: an actuation
assembly for enabling and disenabling movement of said seat, said
actuation assembly comprising a first member affixed to said
movable seat and a second member affixed to said base and
engageable with said first member upon activation by said actuation
assembly, whereby upon activation, said second member is engaged
with said first member thereby locking and preventing movement of
said seat relative to said base.
11. The seating unit of claim 9 further comprising: an electrically
powered drive system coupled to said base and said movable seat,
wherein upon activation of said drive system said seat is
moved.
12. The seating unit of claim 11 further comprising: a remote
control unit adapted to selectively activate said drive system and
thereby selectively move said seat.
13. A seating unit including: a stationary base; and a linearly
positionable seat coupled to said stationary base, said seat
movable within a horizontal plane, and movable between a fully
retracted position to a fully extended position in which at least a
portion of said seat is cantilevered out from said base, and said
seat being selectively positionable to one of a plurality of
positions between said fully retracted position and said fully
extended position.
14. The seating unit of claim 13 further including: an electrically
powered drive system coupled to said base and said seat, wherein
upon activation of said drive system, said seat is selectively
positioned.
15. The seating unit of claim 14 further comprising: a remote
control unit adapted to selectively activate said drive system and
thereby selectively position said seat.
16. A seating unit having a remotely controlled moveable seat, said
seating unit comprising: a base frame defining a front face and an
oppositely directed rear face; a moveable seat defining a front
face and an oppositely directed rear face, said seat supported by
said base frame and coupled to said base frame such that said seat
may be moved within a horizontal plane from (i) a retracted
position in which said front face of said seat is proximate said
front face of said base frame, to (ii) an extended position in
which said front face of said seat is distal from said front face
of said base, and (iii) to a plurality of positions disposed
between said retracted position and said extended position; an
electrically operated drive system coupled to said seat and said
base frame such that upon activation of said drive system, said
drive system effects movement of said seat within said horizontal
plane; and a remote control unit in wireless communication with
said drive system, said remote control unit being configured to
selectively operate said drive system to thereby result in movement
of said seat within said horizontal plane.
17. The seating unit of claim 16 wherein said remote control unit
includes a radio frequency transmitter and said drive system
includes an electrically powered motor and a radio frequency
receiver adapted to receive radio frequency signals from said
transmitter and generate control signals to said motor based upon
said radio frequency signals, thereby selectively operating said
motor and selectively moving said seat within said horizontal
plane.
18. An electrically powered seating unit having a plurality of
independently moveable seats, said seating unit comprising: a
stationary base adapted to retain and support a plurality of seats;
a first seat and a second seat retained and supported by said base,
wherein each of said seats is independently moveable with respect
to the other seat; a first electrically powered drive system
coupled to said base and said first seat whereupon activation of
said first drive system, said first seat moves; a second
electrically powered drive system coupled to said base and said
second seat whereupon actuation of said second drive system, said
second seat moves; a remote control unit including provisions to
activate at least one of said first drive system and said second
drive system, and thereby effect movement of at least one of said
first seat and said second seat.
19. The seating unit of claim 18 wherein said remote control unit
is wireless and said provisions of said remote control unit
comprise a radio frequency transmitter.
20. The seating unit of claim 18 wherein said remote control unit
is wireless and said provisions of said remote control unit
comprise an infrared light transmitter.
21. The seating unit of claim 18 wherein said remote control unit
is in hardwired electrical communication with said first drive
system and said second drive system.
22. A seating unit comprising: a frame defining a lower base
portion and an upwardly extending backrest portion; a moveable seat
coupled to said frame assembly; an assembly for coupling said seat
to said frame, said assembly enabling said seat to be moved to (i)
an extended position in which said seat is disposed generally
horizontally outward from said frame, and (ii) a retracted position
in which said seat is disposed proximate to said backrest portion;
an electrically powered drive assembly coupled to said frame and
said seat, said drive assembly adapted to selectively move seat,
upon activation of said drive assembly, to at least one of said
extended position, and said retracted position; and a wireless
remote control unit adapted to activate said drive assembly and
thereby selectively move said seat.
23. The seating unit of claim 22 wherein said remote control unit
includes a transmitter for emitting a radio frequency signal, and
said seating unit further comprises a receiver adapted to receive
and process said radio frequency signal and subsequently generate a
control signal to said drive assembly to thereby activate said
drive assembly and move said seat.
24. The seating unit of claim 22 wherein said remote control unit
is affixedly secured to said frame.
25. The seating unit of claim 22 wherein said remote control unit
is remote and separate from said seating unit.
26. The seating unit of claim 22 wherein said drive assembly
comprises: an electrically powered motor having a rotatable output
shaft, said motor secured to said frame; a motor controller adapted
to operate said motor, said motor controller in electrical
communication with said motor; a gear secured to said output shaft
of said motor; a screw member secured to said moveable seat, said
screw member engaged with said gear such that upon rotation of said
gear, said screw member is linearly displaced, thereby causing
movement of said seat.
Description
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority from U.S. application Ser.
No. 09/169,498 filed Oct. 9, 1998 entitled "Seating Unit Having
Multiple Sliding Seat Sections"; U.S. application Ser. No.
08/708,406 filed Sep. 4, 1996 entitled "Seating Unit With Movable
Seat", now U.S. Pat. No. 5,947,559; U.S. application Ser. No.
08/914,459 filed Aug. 19, 1997 entitled "Couch With Sliding Seat",
now U.S. Pat. No. 5,988,749; U.S. provisional application Ser. No.
60/083,170 filed Apr. 27, 1998 entitled "Sliding Seat Assembly";
U.S. provisional application Ser. No. 60/141,480 filed Jun. 29,
1999 entitled "Sliding Seat Assembly"; and U.S. provisional
application Ser. No. 60/204,656 filed May 17, 2000 entitled
"Furniture Pieces with One or More Extendable Seat sections
Activated Via Remote Control."
FIELD OF THE INVENTION
[0002] This invention pertains to furniture. More particularly, the
present invention pertains to a seating system, such as a couch,
sofa, love seat or chair having a movable seat section.
Specifically, the invention pertains to a seating system having one
or more seat sections, each of which is independently movable or
slidable between an extended position, a retracted position, and
any position therebetween.
BACKGROUND OF THE INVENTION
[0003] Convertible seat bed units of various constructions and
useable both for seating and sleeping are well known in the art. In
many of these, a flexible bed platform is held in a curved
condition in a sofa portion of the seat bed unit. Once the seat
cushions are removed, the bed platform can be pulled out of the
sofa portion and is straightened out. Convertible sofa-bed units
are also known in which a rigid seat support frame is mounted on a
main frame for movement of the seat between a rearward seating
position--in which a rear edge of the seat is located under a back
rest--and a forward sleeping position, in which the rear edge of
the seat is located forwardly of the backrest and is raised to
level the bed. A typical patent disclosing such an embodiment is
the Quakenbush 3,816,860 patent. Another such sofa-bed unit is
disclosed in the Fox 3,005,997 patent. A convertible sofa-bed unit
utilizing a flexible support frame that may be extended from, or
retracted into, the unit is disclosed by Singer in U.S. Pat. No.
4,586,206. Although satisfactory in most respects, these sofa-beds
are primarily for sleeping and are unsuitable as furniture seating
units.
[0004] In U.S. Pat. No. 4,166,299 for an extendable bed mechanism,
DuShane et al. describe an extendable bed that may be placed in
either a fully extended position or in a fully retracted position.
Although satisfactory for a sleeping unit, the extendable bed
mechanism of DuShane et al. would be entirely unsatisfactory for
use as a seating unit. First, DuShane et al.'s system does not
enable the bed or support structure to be secured at an
intermediate position, that is between a fully retracted position
and a fully extended position. Second, DuShane et al. utilize a
first movable bed panel that is pulled across the top of a second
panel. The resulting minimal distance between these panels would
not allow the incorporation of cushioning provisions between the
panels, such as coil springs, expanded metal devices, S springs, or
fabric supports. Third, it is doubtful that the mechanism of
DuShane et al. would properly operate or at least smoothly, if one
or two persons remained laying on the bed while attempting to
extend the bed outward. Accordingly, there is a need for a
mechanism, particularly one adapted for use in a seating unit, that
allows a seat or other support structure to be placed in any one of
numerous positions between a fully retracted and a fully extended
position. It would also be desirable that such a movable support
panel accommodate cushioning provisions under the support panel.
And, as will be appreciated, the movable support panel and its
related assembly should operate smoothly as the support panel is
moved from one position to another, particularly when supporting
the weight of one or more persons.
[0005] Another problem with conventional couches and seats is that
the extension of the seat frame in relation to the main frame
cannot be controlled so that the seat frame can be locked in
relation to the main frame at a number of positions between a fully
retracted position and a fully extended position. Rather, in the
sofa-bed units disclosed in the Quakenbush '860 patent and the Fox
'997 patent, there is only a fully retracted position and a fully
extended position. This is understandable since the thrust of these
patents is to a sofa which converts into a bed rather than a sofa
having a slidable seat section. The sofa-bed unit disclosed by
Singer in the '206 patent is positionable only between a "bed"
(extended) position and a "sofa" (retracted) position. The
extendable bed mechanism disclosed by DuShane, et al. is similar in
that it only provides a fully retracted position and a fully
extended position.
[0006] In addition, the known sofa-bed units do not allow a sliding
motion of the seat frame in relation to the main frame when a
person is seated on the seat frame. Rather, the person has to get
up to move the seat frame. This is understandable because the seat
frame is being turned into a bed. The mechanism of DuShane, et al.
exhibits a similar difficulty.
[0007] It would be desirable to have a seat frame that can be moved
while the person remains seated and that can be locked into a
number of positions between a fully retracted position and a fully
extended position so that the person can regulate the length of the
seat portion.
[0008] Accordingly, it has been considered desirable to develop a
new and improved seating system which can be used on couches,
sofas, love seats or chairs which would overcome the foregoing
difficulties and others, meet the above stated needs and provide
better and more advantageous overall results.
BRIEF SUMMARY OF THE INVENTION
[0009] The present invention achieves all of the foregoing
objectives and provides, in a first aspect, a seating unit having a
movable seat and comprising a seating unit base, a backrest member
that extends upward from the base, a movable seat member situated
on the base, and a locking assembly. The seating unit base includes
a support frame, first and second side walls, and a rear wall that
extends between the first and second side walls. The backrest
member constitutes at least a portion of the rear wall of the
seating unit base. The movable seat member is positioned on the
support frame and between the first and second side walls. The seat
member is movably coupled or attached to the support frame of the
seating unit base so that the seat member may be moved within a
horizontal plane outward from the base support frame to one of
several extended positions relative to the base. The locking
assembly of the seating unit serves to selectively engage the seat
member to the support frame of the seating unit base to thereby
secure the seat to the support frame after positioning the seat to
the desired extended position.
[0010] In another aspect, the present invention provides a seating
unit that defines an interior chamber within its interior for
storing a movable seat. The seating unit comprises a base that
includes first and second sides, a rear wall that extends between
the sides, and a support frame generally extending between those
components. The seating unit also comprises a movable seat that is
coupled to the support frame, the seat being sized to generally
span between the first and second side walls. The seating unit also
comprises a coupling assembly that secures the seat to the base and
enables the seat to be moved relative to the base, between a fully
retracted position in which at least a portion of the seat is
positioned within the interior chamber, and a fully extended
position in which a majority of the seat is outside of the chamber.
The coupling assembly further enables the seat to be positioned to
one of a desired position between a fully retracted position and a
fully extended position.
[0011] In yet another aspect, the present invention provides a
seating unit that includes a stationary base, and a linearly
positionable seat that is coupled to the base. The seat is movable
within a horizontal plane, and further movable between a fully
retracted position and a fully extended position. When the seat is
in a fully extended position, at least a portion of the seat is
cantilevered out from the base. The seat is selectively
positionable to one of a plurality of positions between a fully
retracted position and the fully extended position.
[0012] In a further aspect, the present invention provides a
seating unit having a remotely controlled movable seat. The seating
unit comprises a base frame, a movable seat, an electrically
operated drive system, and a remote control unit. The movable seat
is supported by the base frame and coupled to the base frame such
that the seat may be moved within a horizontal plane to one of
numerous positions. The drive system is electrically operated and
governs movement of the seat within the horizontal plane. The
remote control unit is preferably wireless and is configured to
selectively operate the drive system to thereby result in movement
of the seat within the horizontal plane.
[0013] In a further aspect, the present invention provides an
electrically powered seating unit having two or more independently
movable seats. Specifically, the seating unit comprises a
stationary base, at least two seats retained and supported by the
base such that each of the seats is independently movable with
respect to the other seat. The seating unit further includes
electrically powered drive systems for each seat. Upon actuation of
the drives, the corresponding seat moves. The seating unit further
includes a remote control unit that includes provisions to activate
at least one of the drive systems, and preferably all of the drive
systems to thereby effect movement of the seats.
[0014] And in yet another aspect, the present invention provides a
seating unit comprising a frame, a movable seat coupled to the
frame, an assembly for coupling the seat to the frame and allowing
movement of the seat between various positions, an electrically
powered drive assembly, and a wireless remote control. The seat may
be moved between an extended position in which the seat is located
generally horizontally outward from the frame and a retracted
position in which the seat is disposed next to a backrest portion
of the seating unit. The wireless remote control unit is adapted to
activate the drive assembly to thereby selectively move the
seat.
[0015] Still other benefits and advantages of the invention will
become apparent to those of average skill in the art upon a reading
and understanding of the following detailed specification.
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The invention may take physical form in certain parts and
arrangements of parts, several preferred embodiments of which will
be described in detail in this specification and illustrated in the
accompanying drawings, which form a part hereof and wherein:
[0017] FIG. 1 is a perspective view, partially broken away, of a
sofa according to the present invention in a retracted
position;
[0018] FIG. 2 is a perspective view, partially broken away, of the
sofa of FIG. 1 in an extended position;
[0019] FIG. 3 is a side elevational view, partially broken away, of
the sofa of FIG. 1;
[0020] FIG. 4 is a greatly enlarged perspective view of a portion
of the sofa of FIG. 1;
[0021] FIG. 5 is a perspective view from the bottom rear of the
sofa of FIG. 1 with many portions of the sofa broken away for
clarity;
[0022] FIG. 6 is an enlarged front elevational view of a portion of
the sofa of FIG. 1 with certain parts thereof removed for
clarity;
[0023] FIG. 7 is a side elevational view, partially broken away, of
a chair according to a second preferred embodiment of the present
invention;
[0024] FIG. 8 is a perspective view of a sofa according to a third
preferred embodiment of the present invention;
[0025] FIG. 9 is a side elevational view of a love seat according
to a fourth preferred embodiment of the present invention;
[0026] FIG. 10A is a side elevational view, partially broken away,
of a sofa according to a fifth preferred embodiment of the present
invention;
[0027] FIG. 10B is a front elevational view of a portion of the
sofa of FIG. 10A;
[0028] FIG. 10C is a side elevational view of a portion of the sofa
taken along lines 10C-10C;
[0029] FIG. 11 is a bottom plan view of the sofa of FIG. 10A,
partially broken away;
[0030] FIG. 12A is a side elevational view of a chair or sofa
according to a sixth preferred embodiment of the present invention
in a retracted position;
[0031] FIG. 12B is a side elevational view of the chair of FIG. 12A
in an extended position;
[0032] FIG. 13 is a perspective view, partially broken away, of a
couch according to a seventh preferred embodiment of the present
invention;
[0033] FIG. 14 is a side elevational view, partially in
cross-section, of a couch according to an eighth preferred
embodiment of the present invention;
[0034] FIG. 15 is a bottom plan view of a backrest reclining
mechanism for the couch of FIG. 14;
[0035] FIG. 16 is a side elevational view, partially broken away,
of a couch according to a ninth preferred embodiment of the present
invention;
[0036] FIG. 17 is a perspective view from the rear of a lumbar
backrest reclining mechanism for the couch of FIG. 16;
[0037] FIG. 18 is a perspective view of the third preferred
embodiment sofa utilizing a first alternate frame assembly
according to the present invention;
[0038] FIG. 19 is a side elevational view, partially broken away,
of the fifth preferred embodiment sofa utilizing the first
alternate frame assembly according to the present invention;
[0039] FIG. 20 is a perspective view of the first preferred
embodiment sofa utilizing the first alternate frame assembly
according to the present invention;
[0040] FIG. 21 is a bottom plan view of the fifth preferred
embodiment sofa utilizing the first alternate frame assembly
according to the present invention;
[0041] FIG. 22 is a partial rear elevational view of the fifth
preferred embodiment sofa utilizing the first alternate frame
assembly according to the present invention;
[0042] FIG. 23 is a bottom plan view of the fifth preferred
embodiment sofa utilizing a first alternate actuation mechanism
according to the present invention;
[0043] FIG. 24 is a perspective view of a preferred dual cable
control adapter utilized in the first alternate actuation mechanism
according to the present invention, and illustrating the adapter
during actuation from one side or end of a seating unit;
[0044] FIG. 25 illustrates the adapter shown in FIG. 24 in a
stationary configuration;
[0045] FIG. 26 illustrates the adapter shown in FIG. 24 during
actuation from a second or other side or end of a seating unit;
[0046] FIG. 27 is a partially exploded, perspective view of the
third preferred embodiment sofa utilizing the first alternate
actuation mechanism according to the present invention;
[0047] FIG. 28 is a side elevational view, partially broken away,
of the fifth preferred embodiment sofa utilizing a second alternate
frame assembly according to the present invention;
[0048] FIG. 29 is a partial cross-sectional view taken along line
29-29 in FIG. 28, illustrating in greater detail the second
alternate frame assembly according to the present invention;
[0049] FIG. 29A illustrates an alternative preferred frame assembly
in which a roller glide assembly is oriented horizontally to
thereby avoid the use of one or more weight supporting rollers;
[0050] FIG. 30 is an end view of a roller glide assembly utilized
in the second alternate frame assembly according to the present
invention;
[0051] FIG. 31 illustrates in greater detail the roller glide
assembly depicted in FIG. 30, a latching pin assembly, and a caster
roller assembly employed in the second alternate frame assembly
according to the present invention;
[0052] FIG. 32 is a partial side elevational view of the caster
roller assembly illustrated in FIG. 31;
[0053] FIG. 33 illustrates the second alternate frame assembly
depicted in FIG. 31 utilizing a second version of a caster roller
assembly according to the present invention;
[0054] FIG. 34 is a partial side elevational view of the second
version caster roller assembly shown in FIG. 33;
[0055] FIG. 35 is an end view of a third alternate frame assembly
utilizing another roller glide assembly and yet another latching
pin assembly according to the present invention;
[0056] FIG. 36 illustrates in greater detail engagement of the
latching pin assembly shown in FIG. 31;
[0057] FIG. 37 is a perspective view of the latching pin assembly
depicted in FIG. 36;
[0058] FIG. 38 is a cross-sectional view of the latching pin
assembly shown in FIG. 36;
[0059] FIG. 39 is a perspective and partially broken away view of a
first preferred embodiment seating unit having two sliding seat
sections, the unit illustrated in a fully retracted position;
[0060] FIG. 39a is a perspective view of the first preferred
embodiment seating unit illustrated in FIG. 39, the unit
illustrated as having one of the seat sections partially
extended;
[0061] FIG. 39b is a perspective view of the first preferred
embodiment seating unit illustrated in FIG. 39, the unit
illustrated as having the other seat section partially
extended;
[0062] FIG. 39c is a perspective view of the first preferred
embodiment seating unit illustrated in FIG. 39, the unit
illustrated as having both seat sections fully extended;
[0063] FIG. 40 is a perspective and partially broken away view of a
second preferred embodiment seating unit having two sliding seat
sections and an interior stationary console, the unit illustrated
in a fully retracted position;
[0064] FIG. 40a is a perspective and partially broken away view of
a variant of the second preferred embodiment seating unit having
two sliding seat sections and an interior console movable with one
of the sliding seat sections, the unit illustrated in a fully
retracted position;
[0065] FIG. 40b is a perspective and partially broken away view of
another variant of the second preferred embodiment seating unit
having two sliding seat sections and an interior console movable
with one of the sliding seat sections but disguised to appear as if
stationary;
[0066] FIG. 41 is a perspective view of a third preferred
embodiment seating unit having three sliding seat sections and an
optional accessory tray disposed at one end of the unit, the unit
illustrated in a fully retracted position;
[0067] FIG. 41a is a detail end view of the accessory tray
illustrated in FIG. 41;
[0068] FIG. 41b is another detail end view of the accessory tray
illustrated in FIG. 41;
[0069] FIG. 42 is a bottom plan view of the first preferred
embodiment seating unit having two sliding seat sections;
[0070] FIG. 43 is a front elevational view of a fourth preferred
embodiment seating unit having three sliding seat sections, the
unit illustrated in partial schematic form;
[0071] FIG. 44 is a front elevational detail of the three sliding
seat sections depicted in FIG. 43; and
[0072] FIG. 45 is a front elevational detail of one of the sliding
seat sections shown in FIG. 44;
[0073] FIG. 46 is a partial perspective view of another preferred
embodiment seating unit, revealing a preferred embodiment leg
extension feature in accordance with the present invention;
[0074] FIG. 47 is a partial view of the underside of the preferred
embodiment seating unit depicted in FIG. 46;
[0075] FIG. 48 is a perspective view of the first preferred
embodiment seating unit illustrated in FIG. 39, including a
preferred embodiment drop-down section in accordance with the
present invention;
[0076] FIG. 49 is a perspective view of yet another preferred
embodiment seating unit in accordance with the present invention,
the seating unit being depicted in a retracted state;
[0077] FIG. 50 is a perspective view of the preferred embodiment
seating until shown in FIG. 49, in an extended state;
[0078] FIG. 51 is a side elevational view of the preferred
embodiment seating unit shown in FIG. 49;
[0079] FIG. 52 is a side elevational view of the preferred
embodiment seating unit shown in FIG. 50;
[0080] FIG. 53 is a view of the underside of the seating unit
illustrated in FIG. 49;
[0081] FIG. 54 is a perspective view of another preferred
embodiment frame for a seating unit, the figure illustrating an
electrically operated drive mechanism;
[0082] FIG. 55 is a schematic of a preferred embodiment cable
assembly for selective release of one or more independently
moveable seat sections; and
[0083] FIG. 56 is a perspective view of yet another preferred
embodiment cable assembly for selective activation of a slide
mechanism employed in a seating unit.
[0084] It should be appreciated that many of the foregoing noted
figures are schematic in nature and not necessarily to scale.
Detailed Description of the Preferred Embodiments
[0085] In all of the various preferred embodiment seating units
described herein, the one or more seats or seat frames are movable
with respect to the base or support frame of the seating unit. The
range movement is such that the seat or seat member may be
displaced within a horizontal plane, or substantially so, outward
from the seating unit. The seat may be displaced to one of a
plurality of extended positions relative to the seating unit. Once
the seat is moved or displaced to the desired position, it may be
locked or otherwise secured to remain in that position by a locking
assembly until the user releases the locking assembly and
re-positions the seat or moves it back into its retracted
position.
[0086] A significant feature of the present invention seating unit
relates to the range and degree of movement of one or more seats or
seat members in the seating unit. In a preferred embodiment, the
seat or seat member moves within a single plane, typically
horizontal or approximately so, defined about or along the front of
the seating unit. This type of movement is different than
conventional prior art seating units such as recliners, in which
the seat unit, although movable, does not remain in a single
horizontal plane as it moves, but instead passes through an arc or
other curved path, or at least a plane that is other than
horizontal. These features of the present invention are described
and illustrated more fully below.
[0087] Referring now to the drawings, wherein the showings are for
purposes of illustrating several preferred embodiments of the
invention only and not for purposes of limiting same, FIG. 1 shows
a sofa A according to the present invention. The sofa includes a
main frame 10 for supporting a backrest section and a seat section,
as well as the arm sections of the sofa. With reference now also to
FIG. 5, the main frame 10 comprises a front rail 12, a pair of
spaced side rails 14 and a rear rail 16. A central rail 18 extends
between the side rails 14 and is positioned between the front and
rear rails to stiffen the main frame 10. Secured to a respective
side rail 14 are left and right arm support truss members 20 and
22. A vertical brace 24 extends upwardly from each of the side
rails 14 such that the central rail 18 is secured thereto. As best
illustrated in FIG. 6, a horizontal brace member 26 is secured to
each of the left and right arm support trusses 20 and 22.
[0088] With reference now again to FIG. 1, the main frame 10 also
has a backrest truss 30 which extends vertically from the rear rail
16. As best shown in FIG. 3, a horizontal brace 32 is fastened
between opposing ends of the backrest truss 30 to stiffen same.
Normally, a support foot 36 is provided at each corner of the main
frame 10 to elevate the sofa A from the subjacent floor
surface.
[0089] Slidably mounted on the main frame 10 is a seat frame 40.
Although many of the seats and seat frames described herein are
referred to as being slidably mounted or otherwise providing
sliding movement, it will be understood that these references
include other movements or mounting configurations besides a slide
configuration. For example, roller, ball, and glide assemblies are
included. With reference now again to FIG. 5, the seat frame
comprises a front rail 42, a pair of side rails 44 and a rear rail
46 which are all secured together to form a box frame. Supported on
the seat frame are a plurality of cushions 50 as illustrated in
FIG. 2. It can be seen from FIGS. 1 and 2 that the two end cushions
have arms which extend sideways so that they protrude in front of
the arm supports 20 and 22. To this end, the seat frame 40 also has
lateral extensions to support these portions of the cushions. Arm
padding 52 is provided atop the left and right arm supports 20 and
22 and an upholstered back 54 is secured to the backrest section 30
of the main frame 10.
[0090] All of the frames, frame components, and frame subcomponents
described herein, that is in all preferred embodiments described
herein, may be formed from nearly any suitable material.
Representative examples of such materials include, but are not
limited to, nearly all types and grades of wood if sufficiently
strong, steel, aluminum, and related alloys, composite materials,
and plastic or polymeric materials. Steel frame construction
techniques are known. It is also contemplated that a tubular frame
construction could be employed for forming either or both of the
main frame and seat frame(s) described herein. Tubular frames
generally utilize a hollow metal member, preferably having a
circular or square cross section, which is bent or otherwise formed
into the desired shape or configuration. Generally, the selection
of the material is dictated by factors such as cost, weight, and
strength.
[0091] With reference now to FIG. 6, the seat frame 40 is slidably
supported on the main frame 10 by a support track 60. The track can
comprise a first track member 62 fastened to the horizontal brace
26, which is secured to the right arm section 20 of the main frame
10, and a second track member 64 fastened to the side rail 44 of
the seat frame 40. A somewhat S-shaped connecting element 66 joins
a pair of slide elements 68 and 70 which are mounted in respective
ones of the track members 62 and 64. As best illustrated in FIG. 2,
the slide elements of the first and second track members enable the
seat frame 40 to slide from a retracted position to an extended
position in relation to the main frame 10. The support tracks can
be conventional drawer slides of the type manufactured by Knape
& Vogt of Grand Rapids, Mich. under model No. 8500P. Of course,
a variety of other known slides, which can have single tracks,
triple tracks or any other desired number of tracks, could also be
used.
[0092] With reference now to FIG. 4, a locking means is provided
for securing the seat frame 40 in relation to the main frame 10 in
a plurality of positions between the retracted position illustrated
in FIG. 1 and the extended position illustrated in FIG. 2. The
locking means can comprise a plate 82 which is conventionally
fastened--by screws or the like--to one of the side rails 44 of the
seat frame 40. The plate has a plurality of horizontally spaced
slots 84 therein. For example, the slots can be spaced from each
other at 1 inch intervals, or at other desired intervals.
Cooperating with the plate 82 is an arm 86. The arm has a first
section 88 which is secured via a pivot fastener 90 to the vertical
brace 24 of one of the right and left arm supports 20, 22. The
locking plate 86 also has a second section 92 which is adapted to
fit into any of the slots 84.
[0093] A biasing means 100 is employed to urge the plate 82 into an
end position such that the plate second section 92 extends into one
of the slots 84. The biasing means can comprise a spring 102 having
a first end secured via a conventional fastener 104 to the vertical
brace 24 and a second end secured in an aperture 106 of the plate
first section 88. A control means 110 acts on the plate to rotate
it around pivot 90 in opposition to the biasing means 100 so as to
remove the plate second section 92 from the slots and thereby
enable a horizontal movement of the seat frame 40 in relation to
the main frame 10 as illustrated by arrow 111. The control means
can comprise a cable 112 having a first end 114 secured in an
aperture 116 defined in the plate 82. As illustrated in FIG. 5, the
cable 112 has a second end 118 which is secured in a suitable
aperture in a pivot plate 120. The pivot plate is secured via a
fastener 122 to the central rail 18 of the main frame. It is
evident from FIG. 5 that a pair of locking means 80 and its
attendant biasing means and control means are provided so that each
side rail 42 of the seat frame 40 has a respective plate 82
fastened thereto. Similarly, each of the vertical braces 24 has a
respective arm 86 pivotally fastened thereto.
[0094] A control cable 124 is used to rotate the pivot plate 120.
The cable has a first end 126 fastened to the pivot plate 120 and a
second end 128 which is secured to a control knob 130 (see FIG. 3).
Pulling the knob will pull the control cable 124 thereby pivoting
the pivot plate 120 as illustrated by arrow 132. The rotating
motion of the pivot plate 120 will cause the respective cables 112
to pull on the respective arms 86 in opposition to the respective
biasing means 100 thereby removing the arm second sections 92 from
the respective slots 84. This will enable the seat frame 40 to be
then slid on the support track 60 in relation to the main frame 10.
With the structure of the present invention, such sliding can take
place even if a person is seated on the seat frame. Alternatively,
a pull strap 134, as illustrated in FIG. 2, can be employed to pull
on the control cable 124 and rotate the pivot plate 120.
[0095] As mentioned, the slots 84 in the plate 82 could be spaced
apart at one inch intervals, one half inch intervals, two inch
intervals or the like, if desired. There could be, for example,
thirteen such slots on the plate 82. This enables a sequential
movement of the seat frame 40 in relation to the main frame 10 by
the chosen number of intervals. In sum, the seat can be slid
forward in relation to the base of the sofa by a predetermined
amount to suit the comfort of the occupant. In a prototype of a
couch built according to the present invention, the length of the
seat portion can be increased from 24.75 inches to 33.75 inches by
the sequential movement of the seat frame forwardly from its
retracted position to its extended position. Even in its extended
position, the seat frame 40 is fully supported by the main frame 10
due to support track 60 which has elements fastened to each of the
main frame and the seat frame.
[0096] It should be evident that with this arrangement, the
cushions 50 are preferably deeper than they are on a conventional
sofa or chair so as to accommodate the forward sliding motion of
the seat frame in relation to the main frame, as best shown in FIG.
3. The cushions 50 in a retracted position of the seat frame, have
a rear end extending beneath the upholstered back 54 of the sofa A.
In order to insure that no articles fall between the upholstered
back 54 and the rear edges of the seat cushions 50 when the seat
frame is slid to its forward most position--as illustrated in
dashed outline in FIG. 3--there is provided an apron 136 having one
edge secured to the upholstered back 54 and another edge secured to
the seat frame rear rail 46. In the retracted position of the
seating unit, the apron 136 is hidden in a cavity 138 defined below
the upholstered back 54 of the sofa A and the rear ends of the
cushions 50 protrude into the cavity. In conventional couches and
sofas, the cavity can have a depth of between five and thirteen
inches and this space is unused. The apron 136 also keeps the
cushions 50 from being pushed back into the cavity 138.
[0097] With reference now to FIG. 7, there is shown a different
means for extending a seat frame portion 140 in relation to a main
frame portion 142 of a chair B. In this embodiment, while the same
type of support track 144 is employed as in the embodiment of FIGS.
1-6, a means is provided for urging the seat frame to move in
relation to the main frame. The means comprises a cylinder 150
having a cylinder end 152 pivotally secured to the main frame 142
and having a piston rod end 154 pivotally secured to the seat frame
140. A control cable 156 is actuated by a control knob 158 to
actuate the cylinder and allow the piston and rod thereof to move
in relation to the cylinder thereby allowing the seat frame 140 to
slide in relation to the main frame 142. The chair B can employ the
same type of locking mechanism as illustrated above in connection
with FIG. 4.
[0098] Alternately, the cylinder 150 can be employed as a locking
means. If the seat frame 140 is extended from the main frame 142
manually, the cylinder 150 can be used only as a locking means for
selectively securing the seat frame in relation to the main frame
at one of a plurality of positions. With the cylinder and piston
rod arrangement, an infinite number of positions can be provided
between a retracted position, as illustrated in solid outline in
FIG. 7 and an extended position illustrated in dashed outline.
[0099] With reference now to FIG. 8, there is shown a sofa C having
a seat frame 170 and a main frame 172. In this embodiment, rather
than employing the support track illustrated in FIGS. 1-6, there
are provided a pair of spaced glide tracks 174 and 176 located
beneath the seat frame. The glide tracks are conventional and are
identical to each other. Therefore, only one will be discussed in
detail herein. The glide track 174 has a first element 178 fastened
to a support member 180, which in turn is fastened to the seat
frame 170 and extends parallel to the side rails thereof, and a
second element 182 which is fastened to a cross brace 184 of the
main frame 172. The glide tracks enable a smoother gliding effect
on pulling out the seat frame.
[0100] With reference now to FIG. 9, there is shown a love seat D
having a seat frame 190 that is slidably mounted on a main frame
192. A means for moving the seat frame 190 in relation to the frame
192 comprises a motor 194 which selectively operates a screw shaft
196 such as a conventional acme screw thread shaft having a first
end 198 which is pivotally secured to the seat frame. A
conventional handle control 200 enables a rotation of the motor 194
either in a forward direction, so as to extend the seat frame out
of the main frame, or rearwardly so as to retract the seat frame
back into the main frame. The motor 194 can be located at a desired
location along the depth of the love seat. Obviously with this
embodiment, electrical power is necessary to the motor 194. While
one such motor is illustrated in FIG. 9, it should be appreciated
that two motors can be provided, one on each end of the love seat D
if so desired.
[0101] FIG. 9 further illustrates a flat "S" spring 202 which is
suitably secured to the main frame 192. A plurality of such S
springs are used to urge the backrest outwardly and provide support
for the back of the seat's occupant.
[0102] With reference now to FIG. 10A, another sofa E is there
illustrated having a seat frame 210 and a main frame 212. The seat
frame is slidably mounted on the main frame via a rail assembly as
has been previously described. The seat frame is moved in relation
to the main frame via a pair of electric motors 214 (see FIG. 11).
Each motor includes a sprocket gear 216 as illustrated in FIG. 10B.
The sprocket gear cooperates with a respective rigid chain-like
element 218 which is fastened to the seat frame 210 as shown in
FIG. 10C. For control purposes, a control knob 220 is mounted on
one of the arms of the sofa E. In this embodiment as with the
embodiment of FIG. 9, electrical power is necessary to operate the
motors.
[0103] As illustrated in FIG. 11, supporting the cushions on the
seat frame 210 are a plurality of spaced flat S springs 222. Each
of these is secured to a front support member 224 and a rear
support member 226 fastened to the seat frame 210. The support
members are preferably boards that are secured by conventional
means to the other elements of the seat frame 210. Such springs and
boards can be used to support the cushions in the other embodiments
illustrated previously.
[0104] With reference now to FIG. 12A, a chair F includes a seat
frame 230 which is slidably mounted in relation to a main frame
232. A control means for actuating the seat frame in relation to
the main frame comprises a scissor mechanism 234 which is actuated
by a handle 236. The handle is connected to an A-hook 238 which is
biased by a spring 240. This mechanism is conventional and enables
a movement of the seat frame 230 from the retracted position
illustrated in FIG. 12A to the extended position illustrated in
FIG. 12B.
[0105] FIG. 13 illustrates a couch in which a plurality of cushions
250 are supported on a seat frame 252. Unlike the embodiment
illustrated in FIGS. 1 and 2, the cushions 250 are all
substantially rectangular and do not have the sidewardly extending
protrusions illustrated in FIGS. 1 and 2. Therefore, the seat frame
252 similarly does not have a sidewardly extending section on each
end.
[0106] While all of the foregoing embodiments illustrated a design
in which a backrest portion of the couch or seat was fixed, FIG. 14
illustrates an embodiment in which both the backrest and the seat
portion of a couch H can move. The couch H comprises a main frame
260 on which a seat frame 262 is slidably supported. The main frame
includes a backrest section 264. A set of flat S springs 266
resiliently supports the backrest 264. The springs 266 are mounted
on a set of support braces 268. The support braces are, in turn,
each fastened to a track 270. As is evident from FIG. 15, a
plurality of such tracks are provided with each track being
substantially U-shaped. Each track includes a central area having a
number of longitudinally spaced slots 272 which are meant to
accommodate gear teeth of respective sprockets 274. The sprockets
are mounted on a rod 276. One end of the rod has fastened thereon a
handle 278 which protrudes out of the backrest portion 264 of the
couch so as to be manually engageable. With this embodiment, not
only can the seat frame 262 be moved, as illustrated in dashed
outline in FIG. 14, but the upper end of the backrest can also be
lowered somewhat as similarly illustrated in dashed outline in FIG.
14. Therefore, this embodiment illustrates a movable back support
section for a couch which also has a movable seat section.
[0107] With reference now to FIG. 16, a couch I is there
illustrated which has a movable seat and a movable backrest. In
this embodiment, a main frame 290 has slidably mounted thereon a
seat frame 292. The main frame comprises a backrest section 294
which is resiliently biased by a plurality of spaced flat S springs
296, as can be best seen from FIG. 17. The S springs are mounted on
a support frame 298. The support frame comprises an upper rod 300
for holding a first end of each spring 296 and a support bar 302
for holding a second end of each spring. The rod 300 and support
bar 302 are joined together by a plurality of spaced brace members
304. These each comprise a first telescopic element 306 and a
second telescopic element 308. The set of second elements 308 are
secured to a rod 310. Mounted on the rod are a plurality of
sprockets 312. The sprockets each travel on a respective track 314
which includes a plurality of longitudinally spaced openings 316
for accommodating the teeth of the sprockets. The rod 310 is
actuated by a handle 318 which is mounted on one end thereof so as
to extend away from the backrest. With this embodiment of the
invention, the bottom end of the backrest support can move inwardly
and outwardly as is illustrated in dashed outline in FIG. 16.
[0108] The present invention further provides an alternate frame
assembly for use with any of the seating units described herein.
For purposes of discussion, this first alternate frame assembly 340
will be described in conjunction with sofas A, C, and E. FIG. 18
illustrates the underside of the third preferred embodiment sofa C
utilizing the first alternate frame assembly 340. The frame
assembly 340 comprises a longitudinal rear frame member 350, a
longitudinal front frame member 352, and one or more transverse
frame members 354, preferably extending between the frame members
350 and 352. The longitudinal rear frame member 350 is disposed
along the rear portion of the seating unit, preferably parallel to
a cross brace 184. Similarly, the front frame member 352 is
disposed along the front region of the seating unit, and most
preferably oriented parallel to the rear frame member 350. The one
or more transverse frame members 354 extend between the frame
members 350 and 352 and are preferably oriented perpendicular
thereto. One or more brackets 356 can be used to secure the frame
members 350, 352, and/or 354 to one another. The frame members 350,
352, and 354 form a rigid assembly that may be extended from the
front of the seating unit, preferably by sliding along one or more
tracks.
[0109] Extension of the frame assembly 340 is facilitated by a pair
of sliding track assemblies 360 affixed to the seat frame 170
and/or main frame 172. The track assemblies 360 are preferably
oriented perpendicular to the longitudinal frame members 350 and
352. The track assemblies may be horizontally oriented, or oriented
at an acute angle relative to a horizontal floor surface. As will
be appreciated, the track assemblies may be inclined relative to
the floor by several degrees to provide a comfortable seating
surface regardless of whether the seat frame 170 is retracted or
extended relative to the main frame 172, alternatively, the track
assemblies may be oriented parallel with the floor. Each track
assembly 360 preferably comprises a first section that is secured
to a stationary portion of the seating unit such as the main frame
172. Each track assembly also preferably comprises a second section
that is secured to a movable portion of the seating unit such as
the seat frame 170. The first and second sections are preferably
slidably engaged with each other so that the second section may be
easily moved relative to the first section, yet maintained or held
in alignment therewith. A wide array of friction-reducing
components such as bearings and lubricants may be used in the track
assemblies 360 as known in the art.
[0110] As previously noted, the frame assembly 340 may be used in
any of the seating units described herein. FIG. 19 illustrates the
fifth preferred embodiment sofa E utilizing the first alternate
frame assembly 340. It is most preferred to provide one or more
rear interior legs and one or more front interior legs for the
frame assembly 340 to provide additional support for the frame
assembly 340. FIG. 19 illustrates a rear interior leg 362 and a
front interior leg 364, both extending downwardly from the
underside of the frame assembly 340. As shown in FIG. 19, when the
seat and accompanying frame assembly 340 is extended from the front
of the seating unit to an extended position shown as dashed lines
in FIG. 19, the front and rear interior legs 364 and 362,
respectively, are also moved forward. It is contemplated to provide
a wheel or roller assembly (not illustrated) at the distal end of
each interior leg to facilitate movement of the interior legs with
the seat as the seat is extended or retracted. This feature
significantly increases the stability and support capacity of the
seating unit, particularly when in an extended configuration.
[0111] As previously noted, it may in some instances be desirable
to orient the movable seat at a slight inclination for comfort
purposes. Regardless of the seat configuration, the track
assemblies are preferably horizontally oriented, particularly when
used in conjunction with the front and rear interior legs 364 and
362. As will be appreciated, the movable seat is preferably
configured such that it extends outward in a plane parallel to the
floor surface. And so, in this preferred configuration, the
distance between the underside of the seat or interior legs, and
the floor is the same regardless of whether the seat is extended,
retracted, or at some position therebetween.
[0112] FIG. 20 illustrates the first preferred embodiment sofa A
utilizing the alternate frame assembly 340. This view illustrates
the relative position of the interior legs, such as front interior
legs 364, relative to the support feet 36 of the sofa A.
[0113] It is also contemplated to provide one or more center
support legs (not shown) between the front interior legs 364. In
addition, one or more center support legs (not shown) could also be
provided between the rear interior legs 362. Such center support
legs provide additional load bearing capacity of the seating unit
and enable the use of lighter and less bulky frame components.
[0114] FIGS. 21 and 22 further illustrate the alternate frame
assembly 340. FIG. 21 is a bottom plan view of the fifth preferred
embodiment sofa E utilizing the frame assembly 340. In this
version, a plurality of transverse frame members 354 are utilized,
including positioning such members at both distal ends of the sofa
E. FIG. 22 illustrates the rear of the fifth preferred embodiment
sofa E and the frame assembly 340. FIG. 22 illustrates a riser
member 358 preferably disposed on the top surface of the
longitudinal rear frame member 350 and extending to, or
constituting, part of a movable seat section. The riser member 358,
is also shown in FIG. 18. It is also contemplated to use a similar
riser member disposed along the top of the longitudinal front frame
member 352. A pair of sliding track assemblies 360 are shown
schematically. As shown in FIG. 22, it is also desirable to dispose
the interior legs, such as the rear interior legs 362, directly
below the sliding track assemblies 360, to provide support for the
seating portion, particularly when the seat portion is an extended
position. The interior legs, such as the rear interior legs 362 may
also be configured such that when the seat portion is retracted
within the seating unit, the legs 362 are proximate to, or
immediately adjacent to, a side arm frame 366.
[0115] The present invention also provides numerous actuation
mechanisms for enabling or effecting extension of the seat portion
from the main seating unit. In addition to the various embodiments
previously described herein, FIG. 23 illustrates an alternate
actuation mechanism 380 utilized in the preferred embodiment sofa
E. This alternate actuation mechanism 380 comprises one or more
actuators or control knobs, one or more dual cable control
adapters, one or more latching assemblies, and associated cabling.
Specifically, and referring to FIG. 23, the alternate actuation
mechanism 380 comprises a first control knob 390 disposed on one
side or end of the sofa E. That control knob 390, upon proper or
appropriate actuation, may activate or disengage, one or more
latching assemblies, such as latching assemblies 400 and 420
described in greater detail herein, to enable the seat portion to
be extended from or retracted within the seating unit. In the
configuration shown in FIG. 23, a first side direct cable 394
extends between the first control knob 390 and a first side dual
cable control adapter 398. A first side remote cable 396 extends
between the first control knob 390 and a second side dual cable
control adapter 418. All cabling utilized in conjunction with the
actuation mechanism 380 preferably comprises an outer sheath or
flexible housing, and an inner cable member, slidable therein. A
first side latching assembly 400 is in operable engagement with the
first side dual cable control adapter 398, preferably by a first
side latch cable 404 (more fully described in conjunction with
FIGS. 24-26). Disposed at the other end or side of the sofa E is a
second control knob 410. A second side direct cable 414 extends
between the second control knob 410 and the second side dual cable
control adapter 418. A second side remote cable 416 extends between
the second control knob 410 and the first side dual cable control
adapter 398. A second latching assembly 420 is provided proximate
the second side dual cable control adapter 418. The second latching
assembly 420 is preferably in operable engagement with the second
side dual cable control adapter 418 via a second side latch cable
424 (also described and shown in greater detail below). Upon
actuation at either control knob 390 or 410, the seat portion may
be extended from or retracted within the seating unit by
disengagement of both latching assemblies 400 and 420. Each
latching assembly is operably engageable with a latch rail 402 or
422, preferably affixed to the movable seat.
[0116] FIGS. 24, 25, and 26 illustrate in greater detail the
preferred dual cable control adapter utilized in the first
alternate actuation mechanism 380. It is to be understood that the
following description of the preferred embodiment adapter is given
with respect to the first side dual cable control adapter 398, and
so all references are with regard to that adapter and its
associated cables and latching assembly at the first end of the
sofa E. FIG. 25 illustrates the adapter 398 in a stationary
configuration, i.e. in which neither control knob 390 or 410 has
been actuated to change the position of the seat. The control
adapter 398 comprises an adapter housing 430 having a first end 434
and a second, opposite end 436. Preferably, the first and second
ends 434 and 436 are angled upwardly as shown in the referenced
drawings. The adapter 398 further comprises a slidable actuator
member 438, generally movable along a longitudinally oriented track
432 defined in, or provided along, the housing 430. The first end
434 preferably provides a pair of cable engagement slots 440 for
receiving a pair of cables such as the first side direct cable 394
and the second side remote cable 416. The slots 440 are preferably
sized so that they releasably engage an outer sheathing member or
conduit enclosing the movable cable portion. The second end 436
similarly provides a cable engagement slot 440 for receiving a
latch cable such as the first side latch cable 404. Each of the
three cables 394, 416, and 404 extend toward and operably engage
the actuator member 438. At each cable end is a retention member,
preferably in the form of a ball or bulbous portion affixed to the
cable end. The end 395 of the cable 394 extends through an aperture
defined in the actuator member 438. Similarly, the end 417 of the
cable 416 extends through a second aperture defined in the member
438. The enlarged end of each cable prevents the cable from being
pulled through the respective aperture and away from the member
438. The latch cable 404 also extends to the member 438 and
preferably, through an aperture defined in the member 438.
Operation of the control adapter is as follows.
[0117] Referring to FIG. 24, in the event that the control knob 390
is actuated to thereby pull or place tension upon cable 394, the
distal end 395 of the cable is pulled toward the first end 434 and
engages the movable member 438. Movement of the cable 394 in the
direction of arrow U causes movement of the member 438 along the
track 432 in the direction of arrow V. Since the pulling force is
applied through the cable 394 and not the other cable 416, the
distal end 417 of the cable 416 remains stationary, or
substantially so, as shown in FIG. 24. This configuration minimizes
inducing excessive slack in the cable not being tensioned. However,
it is contemplated to securely affix the end 417 of the cable 416
to the member 438 so that the cable end 417 is displaced along with
the member 438 at all times. Movement of the member 438 in the
direction of arrow V pulls the latch cable 404 in the direction of
arrow W. Movement of the latch cable 404 actuates the latching
assembly 400 as described in greater detail below.
[0118] Referring to FIG. 26, actuation by the other control knob,
i.e. control knob 410 is shown. Upon actuation by the control knob
410, the cable 416 is pulled in the direction of arrow X. This
causes displacement of the member 438 in the direction of arrow Y
along the track 432. Linear movement of the member 438 pulls the
cable 404 in the direction of arrow Z as shown in FIG. 26, thereby
actuating the latching assembly 400.
[0119] FIG. 27 is a partially exploded, perspective view of the
third preferred embodiment sofa C utilizing the first alternate
actuation mechanism 380. FIG. 27 more clearly illustrates the cable
connection and configuration. It is to be understood that the use
of the previously described dual cable control adapters and unique
cable routing configuration enables simultaneous actuation of
multiple latching assemblies from a single control knob. That is,
both latching assemblies 400 and 420, located at opposite ends of
the seating unit, may be simultaneously actuated at either end of
the seating unit.
[0120] The present invention also provides a second alternate frame
assembly 450, that can be incorporated in any of the seating units
described herein. FIG. 28 illustrates the fifth embodiment sofa E
utilizing the second alternate frame assembly 450 in accordance
with the present invention. This second alternate frame assembly
utilizes a plurality of caster rollers that facilitate extension or
retraction of the seat within the seating unit. FIG. 28 also
illustrates the first control knob 390 and its associated first
side direct cable 394 in operable engagement with the first side
latching assembly 400.
[0121] FIG. 29 is a partial cross-sectional view taken along line
29-29 in FIG. 28, illustrating in greater detail the second
alternate frame assembly 450. The frame assembly 450 comprises
longitudinal front and rear frame members, similar to the frame
members 352 and 350 of the previously described first alternate
frame assembly 340. In place of, or in addition to, two transverse
frame members 354, each disposed at opposite ends of the resulting
assembly, such as shown in FIG. 21, the frame assembly 450
comprises a stationary arm side bracket 460 and a movable seat side
bracket 470. The frame assembly 450 further comprises a plurality
of caster rollers 480. The stationary bracket 460 is affixed or
otherwise incorporated within the main frame of the seating unit
such as along the arm side. The bracket 460 comprises a first end
462 and a second end 464. It may be preferred to form the first end
462 to more readily engage a frame or support member of the seating
unit, such as is shown in FIG. 29. The movable bracket 470 also has
a first end 472 and a second end.
[0122] Disposed between the brackets 460 and 470 is a roller glide
assembly 500 that facilitates movement between the brackets 460 and
470 and members attached thereto, and maintains orientation and
alignment of the movable seat section with the seating unit. In the
embodiment shown in FIG. 29, each caster roller 480 is rotatably
supported along a caster axle 484 by a caster carriage 482. The
caster carriage 482 is stationary and preferably secured to one or
more frame members of the seating unit. The caster roller 480
contacts a caster race 486 defined along the underside of the first
end 472 of the movable bracket 470. It is also preferred to secure
or otherwise mount the latch assembly 400 to the stationary bracket
460, and preferably along the second end 464 of the bracket
460.
[0123] As described in greater detail below, one or more locking or
latching assemblies are utilized to releasably secure the movable
seat at a desired location upon extension or retraction of the seat
relative to the seating unit. The following description is given
with regard to a latching assembly as utilized along the first side
of the seating unit such as shown in FIG. 23. Referring further to
FIG. 29, the first side latching assembly 400 comprises a latch pin
401 that releasably engages a first side latch rail 402. The latch
rail 402 is secured to the movable seat portion. The latching
assembly 400 further comprises the first side latch cable 404
secured to the latch pin 401, and a latch spring 406. The latch
spring 406 urges the latch pin 401 into engagement with the latch
rail 402. The latch pin 401 engages the latch rail 402 along a
distal end of the pin 401. The pin 401 is linearly movable within a
pin housing. A pin travel guide may also be utilized to facilitate
movement of the pin within the housing, and most preferably
maintain alignment and orientation of the pin within the pin
housing. Details of the components and their configuration within
the latching assembly 400 are described in greater detail below in
conjunction with FIGS. 36-38.
[0124] FIG. 29A illustrates an alternative preferred embodiment
frame assembly. Essentially, the assembly shown in FIG. 29A
corresponds to assembly 450 depicted in FIG. 29, however the
assembly being rotated by ninety degrees. This orientation places
the weight of the seating unit directly on the mechanism shown in
FIG. 29A and thus eliminates the need for the castor rollers shown
in FIG. 29.
[0125] FIG. 30 illustrates the roller glide assembly 500 as used in
the second alternate frame assembly 450. The roller glide assembly
500 comprises a first roller portion 510, a second roller portion
520, and a third roller portion 530. Each roller portion comprises
an outer track 512, an inner nested or telescoping track 514. One
or more bearings 516 facilitate movement between the tracks 512 and
514. The portions 510, 520, and 530 are preferably configured so
that each portion extends concurrently and in parallel with the
other portions. The use of such an arrangement of roller portions,
that is, in a multiple and parallel configuration, significantly
increases the load bearing capacity of the movable seat portion.
The present invention includes other configurations for the roller
portions 510, 520, and 530. For example, the portions can be
arranged and operably engaged with each other so that only upon
full or near extension between tracks 512 and 514 of one of the
portions, such as the first roller portion 510, does extension
occur between another set of tracks 512 and 514 of one or both of
the other portions, such as the second roller portion 520.
[0126] FIG. 31 illustrates in greater detail the roller glide
assembly 500, latching pin assembly 400, and caster roller assembly
employed in the second alternate frame assembly 450 according to
the present invention. Upon actuation of a control knob, such as
the control knob 390, and pulling or tensioning of cable 404, the
latch pin 401 is linearly displaced away from the latch rail 402
until the distal end 407 of the latch pin 401 is disengaged from
the latch rail 402. This action compresses the latch spring 406.
Although a wide array of configurations may be used for the latch
rail, it is preferred to utilize a rail or planar member having a
plurality of spaced apertures defined along its length that are
each sized to receive and engage the distal end of the latch pin.
Once freed, the seat may then be moved, i.e. retracted or extended.
Movement of the seat results in movement of the seat side bracket
470. Movement of the bracket 470 is facilitated by the glider
assembly 500 and by one or more caster rollers 480. Upon release of
the control knob, the spring 406, under compression, urges the pin
401 into engagement with the latch rail 402 to prevent further
movement.
[0127] FIG. 32 is a partial side elevational view of the caster
roller assembly illustrated in FIG. 31. In this configuration,
movement of the seat causes movement of the seat side bracket 470.
The caster 480 and caster carriage 482 are secured to a stationary
support bracket 490. Movement of the seat side bracket 470 is
facilitated by the caster roller 480 rotating along and contacting
the caster race 486 defined along the underside of the bracket
470.
[0128] FIGS. 33 and 34 illustrate the second alternate frame
assembly 450 utilizing a second version of a caster roller assembly
according to the present invention. This second caster roller
version utilizes a downwardly extending caster carriage 542 for
housing a caster roller 540 along a rotatable axle 544. In this
version, the caster carriage 542 is affixed to the lower region 472
of the movable seat side bracket 470. The caster roller 540
contacts a caster race 546 defined along an upwardly facing surface
of a support bracket 490 which is stationary. It may be desirable
to provide one or more upwardly projecting side walls alongside the
caster race 546 to promote alignment between the seat frame and the
seating unit as the seat is extended or retracted in relation to
the stationary support bracket 490. It is to be understood that
similar sidewalls could be provided along the caster race 486 of
the first caster roller assembly version shown in FIGS. 31 and
32.
[0129] The present invention further provides a third alternate
frame assembly 550 as shown in FIG. 35. The frame assembly 550
comprises an upper stationary bracket 552, a lower stationary
bracket 556, and a movable seat side bracket 560. The stationary
bracket 552 has an upper end 554 adapted to be incorporated within
or affixed to a portion of the main frame of the seating unit. The
lower stationary bracket 556 includes a transverse portion 558 that
preferably extends horizontally between an upper end of the lower
stationary bracket 556 and a lower portion of that bracket.
Similarly, the movable bracket 560 includes a transverse portion
562. It is contemplated that a single bracket could be utilized
instead of the upper and lower brackets 552 and 556. A latching
assembly is also used in conjunction with the frame assembly 550.
The latching assembly may be similar to that latching assembly 400
previously described or may be as follows and in accordance with an
alternate latching assembly 570. This alternate latching assembly
570 comprises a latch housing 572 preferably extending between the
lower portions of the lower stationary bracket 556 and proximate to
the movable seat side bracket 560. The latching assembly 570
further comprises a latch pin 574 movably disposed within the latch
housing 572 and having a latch pin engaging end 576 and a latch pin
actuating end 578. The frame assembly 550 further comprises a
roller glide assembly 590 comprising an outer track 592, an inner
track 594, and a plurality of bearings 596 that facilitate
movement, preferably telescoping movement, between the tracks 592
and 594. The assembly enables the seat side bracket 560 to be
moved, or linearly displaced, relative to the stationary brackets
552 and 556.
[0130] FIGS. 36, 37 and 38, further illustrate the previously noted
latching assembly 400. As shown in FIG. 36, the latching assembly
400 comprises a pin housing 408 and a support plate 412. Referring
to FIG. 37, the support plate 412 may be secured to the lower
region 464 of the stationary bracket 460. The pin housing 408 is
preferably a hollow cylindrical body having a threaded end for
releasably engaging a corresponding threaded aperture defined in
the support plate 412. As shown in FIG. 37, the latch pin 401 is
disposed within a cylindrical bore in the pin housing 408. The
latch pin 401 extends through the housing 408 so that the engaging
distal end 407 of the pin extends out the other end of the housing
408. Optionally, a pin travel guide 409 may be utilized within the
housing 408 to facilitate movement and maintain alignment of the
pin 401 within the housing 408. FIG. 38 illustrates a
cross-sectional view of the latching assembly 400. A latch spring
406 is disposed within the housing 408 between the pin travel guide
409 and end of the housing 408.
[0131] The present invention also provides a seating unit having
two or more individually movable seat sections. FIGS. 39 to 39c
illustrate a first preferred embodiment multiple seating unit J.
The first preferred embodiment seating unit J comprises a first
movable seat section 620 and a second movable seat section 630. The
second movable seat section 630 is independently movable with
respect to the first movable seat section 620, and vice-versa. The
first preferred embodiment seating unit J further comprises a
backrest 602 generally extending between a first end 604 and a
second end 606. Located at the first end 604 is a first armrest
608. Similarly, located at the second end 606 is a second armrest
610. The first movable seat section 620 preferably includes a first
cushion 622 and the second movable seat section 630 preferably
includes a second cushion 632. The first preferred embodiment
seating unit J also comprises a plurality of legs 640 or other
support members. One or more legs 640, or other support members
such as caster wheels, may be utilized for supporting each seat
section also. Preferably, two legs are provided along the underside
of the frontward portion of each of the seat sections 620 and 630.
Nearly any number of legs along the frontmost region of the seating
unit may be utilized. For example, in a multiple sliding seat unit,
having two sliding seat sections, a leg may be provided on each
frontward corner of the seating unit, and two additional legs may
be provided generally at the midsection of the seat unit, each
secured to a respective seat section and along the front underside
of the unit. The two additional legs at the midsection of the seat
unit may be relatively narrow in appearance and positioned adjacent
to one another so that when the two seat sections are retracted,
the two thin legs have a combined thickness equivalent to either of
the end legs. This creates the appearance of the seating unit
having a total of three legs along its front. The use of such legs
or other support provisions under a seat section promotes stability
of the seating unit particularly when the seat section is fully
extended and weight or other downward force is placed on the
extended seat. Each of the movable seat sections 620 and 630
include, or utilize, a separate sliding track assembly 650. The
sliding track assembly 650 may utilize a configuration or mechanism
similar to, or identical to, the assembly illustrated in FIGS. 29
and 30 and previously described herein. Moreover, the sliding track
assembly 650 may correspond to any of the previously noted support
track 60; glide tracks 174,176; track assembly 360; and roller
glide assembly 500.
[0132] FIGS. 39a to 39c illustrate the first preferred embodiment
seating unit J in various positions of seat extension and
retraction. FIG. 39a shows the seating unit J in a state in which
the second seat section 630 is partially extended while the first
seat section 620 is fully retracted. It will be appreciated that
the respective seat cushions 622 and 632 move along with, or remain
stationary, with their respective movable seat section. FIG. 39b
illustrates the first preferred embodiment seating unit J in a
configuration in which the first movable seat section 620 is fully
extended and the second movable seat section 630 is fully
retracted. FIG. 39c illustrates the seating unit J in a state in
which both the first and second seat sections 620 and 630 are fully
extended.
[0133] It will be understood that the sliding track assemblies 650
utilized in the first preferred embodiment seating unit J include a
latching or securing mechanism as previously described, that
enables an individual seat section 620 or 630, to be secured at any
position. Specifically, the latching or securing mechanism enables
a seat section to be locked or otherwise secured in place when the
seat section is fully retracted, fully extended, or at any position
in between the positions of the seat section when fully retracted
and fully extended. In addition, the first preferred embodiment
seating unit J may utilize any of the components from other
preferred embodiments described herein, such as any of the cable
based actuation assemblies if the seating unit is manually extended
or retracted.
[0134] FIGS. 40 to 40b illustrate a second preferred embodiment
multiple seating unit K. The second preferred embodiment seating
unit K comprises a first movable seat section 720 and a second
movable seat section 730. The second movable seat section 730 is
independently movable with respect to the first movable seat
section 720, and vice-versa. The second preferred embodiment
seating unit K further comprises a backrest 702 generally extending
between a first end 704 and a second end 706. Disposed at the first
end 704 is a first armrest 708. Similarly, located at the second
end 706 is a second armrest 710. The first movable seat section 720
preferably includes a first cushion 722 and the second movable seat
section preferably includes a second cushion 732. The second
preferred embodiment seating unit K also includes a plurality of
legs 760 or other support members. Each of the movable seat
sections 720 and 730 include, or utilize, a separate sliding track
assembly 756. The sliding track assembly 756 may utilize a
configuration or mechanism similar to, or identical to, the
previously described sliding track assembly 650 of the first
preferred embodiment multiple seating unit J.
[0135] The second preferred embodiment multiple seating unit K
further comprises a console 742. Typically, the console 742 is
disposed between the seat sections 720 and 730, however the present
invention includes variant embodiments in which the console 742 is
located proximate or adjacent to one of the armrests 708 or 710.
The console 742 preferably includes one or more cup holders 744 and
a support surface 746, upon which may be placed objects. Although
not shown in FIGS. 40 to 40b, it will be understood that the
console 742 may comprise one or more storage compartments, shelves,
or other provisions customary in residential furniture.
[0136] Another feature of the second preferred embodiment seating
unit K relates to the console 742 being movable with one of the
seat sections 720 or 730. Alternatively, the console 742 can be
configured so that it is stationary and does not move with either
of the seat sections 720 or 730.
[0137] In this version, both the console 742 and its supporting
section 740 remain stationary along with other components of the
seating unit K, as either or both of the seating sections 720 and
730 are moved.
[0138] FIG. 40a illustrates a version of the seating unit K in
which the console 742 is movable along with the second seat section
730. As shown in FIG. 40a, the width of the seat section 730 is
preferably increased to accommodate the console 742. Thus, upon
extension of the second seat section 730, the console 742 is moved
along with the seat section 730 and the cushion 732. It will be
understood that instead of configuring the second seat section 730
to accommodate the console 742, the first seat section 720 could be
modified to accommodate the console 742.
[0139] FIG. 40b illustrates another variant embodiment of the
seating unit K. In this version, the second seat section 730 is
configured to accommodate the console, i.e. as previously described
in conjunction with FIG. 40a, however, the seat section 730 is
formed to appear as if the console 742 is separate from, and likely
not movable with, the seat section 730. This can be accomplished by
providing a fabric or decorative seam 750 along the exposed or
visible regions of the seat section 730. As will be appreciated, if
the first seat section 720 and the console 742 are configured to
move together, the first seat section 720 could include such a seam
750 or other line of demarcation.
[0140] FIGS. 41 to 41b illustrate a third preferred embodiment
multiple seating unit L. This unit L is similar to the previously
described seating units J and K, but comprises three independently
movable seat sections and provisions for accommodating various
accessories along each end of the seating unit L. These aspects are
described in greater detail as follows.
[0141] The third preferred embodiment seating unit L comprises a
first movable seat section 820, a second movable seat section 830,
and a third movable seat section 840. The first seat section 820 is
independently movable from the second and third seat sections 830
and 840, respectively. Similarly, the second seat section 830 is
independently movable from the first and third seat sections 820
and 840, respectively. And, the third seat section 840 is
independently movable from the first and second seat sections 820
and 830, respectively. The third preferred embodiment seating unit
L further comprises a backrest 802 generally extending between a
first end 804 and a second end 806. Located at the first end 804 is
a first armrest 808. Similarly, located at the second end 806 is a
second armrest 810. The first movable seat section 820 preferably
includes a first cushion 822. The second movable seat section 830
preferably includes a second cushion 832. And the third movable
seat section 840 includes a third cushion 842. Each of the movable
seat sections 820, 830, and 840 include, or utilize, a separate
sliding track assembly (not shown) similar to the previously noted
assemblies 650 and 756. The third preferred embodiment seating unit
L also comprises a plurality of legs 850 or other support
members.
[0142] The third preferred embodiment seating unit L further
comprises one or more provisions for accommodating accessory tables
or other optional attachments. For example, the seating unit L in
FIG. 41 is shown as comprising a first accessory base 860 located
proximate or adjacent to the first armrest 808, and a second
accessory base 864 located proximate or adjacent to the second
armrest 810. Other typical accessory furniture components include,
but are not limited to, snack trays, assemblies for supporting
television and computer hardware, footrests, headrests, and
lighting fixtures. The first accessory base 860 includes a first
accessory receiver 862 that is adapted to receive and retain an
accessory such as an accessory table 870. Similarly, the second
accessory base 864 includes a second accessory receiver 866 that is
adapted to receive and retain an accessory such as the accessory
table 870. Preferably, the accessory receivers 862 and 866
releasably engage the accessory coupled thereto, and may, in some
applications, allow movement of the accessory relative to the
accessory base 860 or 864. For example, it is preferred that the
second accessory receiver 866 is adapted to releasably engage and
retain the accessory table 870 however, allow movement, such as
rotational or vertical movement, of the table 870 relative to the
base 864.
[0143] The accessory table 870 preferably comprises a table member
872 or other planar member that is engaged or secured to a support
member 874. The table member 872 is preferably attached to the
support member 874 by one or more movable brackets 876. The
brackets 876 enable the table member 872 to be rotated about the
support member 874 to various orientations such as depicted in
FIGS. 41a and 41b. Such movement also facilitates storage of the
table 870, such as when the accessory table 870 is removed from the
seating unit L and base 860 or 864.
[0144] FIG. 42 illustrates the bottom or underside of the first
preferred embodiment seating unit J having two independently
movable seat sections 620 and 630. Extending across, or at least
partially so, a respective seat section 620 and 630, are a
plurality of springs 940. It will be understood that other
cushioning or shock absorbing provisions could be employed either
in the place of, or in combination with the springs 940. Disposed
along each side of a seat section 620 and 630, is the sliding track
assembly 650. It will be noted that such an assembly 650 is
disposed along the side of a seat section proximate to an end of
the seating unit J and, that another assembly 650 is disposed along
the other side of the seat section proximate to the middle or
interior region of the seating unit J.
[0145] The particular version of the seating unit J illustrated in
FIG. 42 is shown as comprising electrically powered movable seat
sections 620 and 630. Pursuant to this version, the seating unit J
comprises a first electric motor 910 disposed proximate to the
first end of the seating unit J, and a second electric motor 920
disposed proximate to the second end of the seating unit J. Each
motor 910 and 920 includes a rotary gear or pinion 912 or 922,
respectively, attached to its drive shaft that is engageable with a
rack or linear gear 914 or 924, respectively, affixed to a movable
seat section 620 or 630, respectively. One or both motors 910 and
920 are controlled by one or more control switches 930. Although
the control switch 930 is shown as located on the second armrest
610, it will be appreciated that one or more control switches 930
can be located in other different locations along the seating unit
J. Upon connection to an appropriate power source, operation of the
electrically powered version of the seating unit J is as follows.
One or both of the motors 910 and 920 are activated by appropriate
selection and activation of the control switch 930. Communication
between the motors 910 and 920 and the control switch 930 is
provided by a plurality of electrical conductors 932. Upon
activation of the motor 920, for example, the rotary gear 922 is
rotated thereby causing linear displacement of the rack 924, which
in turn causes linear displacement of the seat section 630.
Preferably, the control switches 930 are in the form of a three (3)
position momentary rocker switch. A first position, maintainable
only by holding the switch in that position, activates the
respective motor to operate in one direction. Such first position
may correspond to extending a seat section. A second position, to
which the switch defaults to, does not activate the motor. A third
position, opposite from the first and maintainable only by holding
the switch in that position, activates the motor in an opposite
direction. This second position may correspond to retracting the
particular seat section. Instead of utilizing a geared rack and
pinion assembly, it may be preferable to utilize a screw and gear
configuration, as previously described in conjunction with love
seat D. It is also contemplated that a chain and sprocket assembly
could be utilized to extend and/or retract a seat section. A wide
array of motors and gear reducers may be utilized. Both 110 V.A.C.
motors and 12, 24 V.D.C. motors can be utilized. Preferred gear
ratios typically range from about 10:1, 20:1, and 40:1. Typical
stroke lengths for the screw members range from about two (2)
inches to about twenty-four (24) or more inches. As will be
appreciated, it may also be preferred to include adjustable stops
along the length of the screw drive.
[0146] It will be appreciated that a mechanical locking assembly
may be eliminated if certain types of electrically powered drives
are employed to move the seat(s) in a seating unit. That is, upon
deactivation and stopping of a moving seat, most types of drives
will also serve to prevent movement of the seat until the drive is
again activated.
[0147] It is particularly preferred to utilize a ball screw drive.
Such drives are commercially available and feature an electrically
powered motor that rotates a geared member which, upon rotation,
causes linear displacement of a long screw member. As will be
appreciated, the screw member is affixed or otherwise secured to
one or more moveable seats. It is preferred that such ball screw
drives have automatic stops at both ends of travel, i.e. full
extension and full retraction of the screw member. Adjustable stops
may also be used. It is also preferable, in some applications, to
incorporate one or more sensors to stop operation of the motor in
the event that a person accidentally places an object or limb in
the travel path of a retracting component such as a seat. Upon
deactivation, a ball screw drive serves to secure or lock the seat
in position.
[0148] In the event that an AC motor is used, a preferred RPM is
from about 1500 to about 3500. In the event a DC motor is used, it
is preferred that the motor RPM be from about 3000 to about 6000.
Appropriate gearing can be utilized to achieve a desired rate of
displacement of the screw member.
[0149] Representative stroke speeds, i.e. linear displacement along
the length of the screw member, are shown below in Table 1:
1TABLE 1 Stroke Speed AC Motors: Gear Ratio 10:1 20:1 40:1 115, 220
VAC 1700 RPM .55/.45 .27/.25 .14/.14 115, 220 VAC 3400 RPM 1.10/.90
.55/.50 .28/.28 DC Motors: Gear Ratio 10:1 20:1 40:1 12, 24 VDC(PM)
3000 RPM .90/.70 .45/.35 .22/.20 12, 24 VDC(PM) 6000 RPM 1.80/1.35
.90/.65 .45/.35 115 VDC(PM) 6000 RPM 1.80/1.35 .90/.65 .45/.35
Note: stroke speeds are in./sec. with no load speed shown first and
500 lb. load speed shown second.
[0150] FIGS. 43 to 45 depict a fourth preferred embodiment multiple
seating unit M. This embodiment is characterized by utilizing a
sliding track assembly directed under each movable seat section.
The seating unit M comprises one or more backrests 1002 generally
extending between a first end 1004 and a second end 1006. The
seating unit M further comprises a first armrest 1008 disposed
along the first end 1004 and a second armrest disposed along the
second end 1010. The seating unit M further comprises a plurality
of individually movable seat sections such as a first seat section
1020, a second seat section 1030, and a third seat section 1040.
One or more cushions are preferably provided with each movable seat
section such as a first cushion 1022 for the first seat section
1020, a second cushion 1032 for the second seat section 1030, and a
third cushion 1042 for the third seat section 1040.
[0151] One significant feature of this seating unit M is that a
stationary frame assembly is disposed under each of the movable
seat sections. Thus, this seating unit M may be characterized as
utilizing a stationary base upon which each of the movable seat
sections extends from, and are linearly displaced over. Referring
to FIG. 43, the seating unit M comprises a stationary frame
assembly comprising one or more horizontal members 1012 that
contact the floor. Extending between the members 1012 and the seat
assemblies are a plurality of vertical, or at least generally
vertical, support members 1014. The frame assembly of the seating
unit M may be formed from a variety of materials including for
example metal, i.e., steel and wood.
[0152] As shown in greater detail in FIGS. 44 and 45, the seating
unit M further comprises a first sliding track assembly 1070
enabling movement of the first seat section 1020, a second sliding
track assembly 1080 enabling movement of the second seat section
1030, and a third sliding track assembly 1090 enabling movement of
the third seat section 1040. The first sliding track assembly 1070
comprises a first set of lower support members 1072, a first set of
upper support members 1074, and a planar support 1076 disposed
between the first cushion 1022 and the first set of upper support
members 1074. Similarly, the second sliding track assembly 1080
comprises a second set of lower support members 1082 and a second
set of upper support members 1084. Similarly, the third sliding
track assembly 1090 comprises a third set of lower support members
1092 and a third set of upper support members 1094. It will be
understood that in each sliding track assembly, the lower support
members slidably cooperate and engage the upper support members.
The sliding track assemblies preferably utilize metal or polymeric
wheels or rollers that travel along a receiving channel or surface.
Each sliding track assembly is oriented such that the respective
seat section may be linearly displaced from a retracted position to
an extended position, vice-versa, and to a plurality of positions
in between the retracted and extended positions. Each, some, or all
of the track assemblies 1070, 1080, and 1090, can utilize roller
bearings, ball bearings, slide assemblies, glide assemblies, linear
glides, bearing glides, roller glides, and caster assemblies to
achieve the noted movable engagement function. As illustrated in
FIG. 43, each movable seat section 1020, 1030 and 1040 may be
provided with its own cable-based actuator or motor activator 1016
to releasably lock a respective seat in its desired position.
[0153] In an alternate variant of the preferred embodiment seating
unit M, the track assemblies 1070, 1080, and 1090 are located
closer to the floor or lower region of the unit. Preferably, the
previously noted vertical support members 1014 are eliminated, or
significantly reduced in height. In addition a corresponding number
of intermediate seat frames are located between the seat cushions
1022, 1032, and 1042, and the track assemblies 1070, 1080, and
1090.
[0154] Referring to FIGS. 46 and 47, another feature of the present
invention is illustrated. This feature, designated as a "forward
leg extension" or "leg extension" relates to a configuration in
which the front legs or support members are forwardly located
thereby increasing the distance between the front legs and the rear
legs, and generally increasing the stability of the seating unit.
FIGS. 46 and 47 generally illustrate another preferred embodiment
seating unit N having this leg extension feature. Specifically, the
preferred embodiment seating unit N comprises a cushion 1100, a
backrest 1102, an armrest 1103, a lower main frame 1104, at least
one main frame cross member 1106, a front fascia or breast board
1120, and the leg extension 1110. The leg extension 1110 is affixed
to the main frame, and preferably extends forwardly from the lower
main frame 1104. The leg extension 1110 includes a top face 1112, a
front face 1114, and a floor contacting region 1116. FIG. 47 is a
view of the underside of the portion of the preferred embodiment
seating unit N illustrated in FIG. 46. FIG. 47 also illustrates an
optional wrap-around fascia or optional breast board portion 1130
that may extend from the fascia 1120 and that at least partially
encloses the leg extension 1110. Most preferably, the wrap-around
fascia extends entirely around and conceals the leg extension 1110
as shown in FIG. 47.
[0155] In yet another aspect, the present invention provides a
feature of a "fold-down" or "drop-down" section as shown in FIG.
48. In accordance with this aspect of the present invention, a
seating unit is provided with a section or cushion, typically
residing along the backrest portion, that may fold or drop downward
to provide an armrest, secondary cushion, or other support surface
as shown in FIG. 48. Specifically, the previously described
preferred embodiment seating unit J, illustrated in FIG. 39, is
shown in FIG. 48 and including a drop-down section 1200. That
section 1200 may be placed along the backrest of the unit,
generally within a cavity 1202 defined along the backrest and
preferably between the two backrest cushions. It is also preferred
that the section 1200 be affixed along its lowermost edge to
thereby form a hinge about which the section 1200 may be pivoted,
or otherwise positioned from a generally vertical orientation along
the backrest of the unit, and a generally horizontal orientation
upon one or more seat sections as shown in FIG. 48. Furthermore,
the drop-down section could serve as a console or be provided with
a relatively hard work surface such that when the section 1200 was
placed into position as shown in FIG. 48, the upwardly directed
face of the section 1200 may define one or more cup holder
cavities, storage compartments, or writing surfaces. When the
section 1200 is placed in its vertical orientation along the
backrest of the seating unit, the cupholders, compartments, and/or
work surfaces would be hidden from view.
[0156] It will be further understood that any of the previously
described features and components of any of the assemblies and
seating units described herein, may be combined or utilized with,
any of the other assemblies and seating units described herein. For
example, the console 742 of the seating unit K may be provided in
any of the seating units J, L, M, or N. Similarly, one or both of
the accessory bases 860 or 864, and the accessory tray 870, may be
provided with the seating units J, K, M, or N. The electrically
powered version of the seating unit J illustrated in FIG. 42 may be
implemented in any of the previously described seating units K, L,
M, or N. And, one or more of the sliding track assemblies 1070,
1080, and 1090 utilized in the seating unit M could be utilized in
one or more other seating units. In addition, the leg extension
1110 can be incorporated in any of the seating units described
herein.
[0157] It is worth reiterating that it may in some instances be
desirable to orient the movable seat or seat section at a slight
inclination for comfort purposes. This may be accomplished in
several ways. First, the seat frame could be oriented at a slight
angle of inclination relative to the floor, such as 1.degree. to
3.degree. degrees. In addition, or alternatively, the tracks or
assembly providing linear displacement of the seat could be
oriented such that as the seat is extended outward, it extends
along a line that is slightly inclined relative to the floor. In
this version, it will be understood that as the seat is extended
from the main unit or frame, the distance between the underside of
the seat and the floor increases. Accordingly, if legs, casters or
other support members are utilized for supporting the extended
seat, it would be necessary to accommodate that change in seat
height relative to the floor. A more preferred arrangement is to
orient the seat tracks generally parallel to the floor such that
the seat extends parallel to the floor, and form the upper portion
of the seat to provide an inclined seating surface. Related to
this, a seat cushion of varying thickness may be utilized to
provide an upwardly facing inclined seating surface. Yet another
technique for providing an inclined seat, which extends
horizontally outward and which utilizes a seat cushion of uniform
thickness, is to orient the support member upon which the cushion
resides, at some slight angle of inclination, such as 1.degree. to
about 3.degree.. In these versions in which the seats move
generally parallel to the floor, the present invention seating unit
may be characterized as having seats whose movements are generally
limited within one or more horizontal planes.
[0158] Seating units in accordance with the present invention have
several significant features and characteristics. A first feature
relates to the use of one or more cavities defined within the
rearward interior region of the couch. Referring to FIG. 3 for
example, a cavity 138 is defined below the upholstered back 54 of
the sofa A. This cavity 138 is unique in that it receives the
rearward end of a cushion or seat section when the seat section,
such as represented by the cushion 50, is retracted into the
seating unit. Generally, most of the preferred seating units as
described herein utilize a cavity that is generally defined below
the lower portion of the upholstered back of the unit. The cavity
typically extends across the length of the unit, i.e. the distance
from one arm rest to the other, and is sufficiently sized to
receive one or more of the cushions or seat sections when
retracted, and preferably fully retracted, into the seating
unit.
[0159] It is also significant that the cavity is oriented and sized
such that a relatively large portion of the seat section or cushion
may reside in the cavity when the seating unit is in a retracted
state. The portion of the seat section that may be inserted and
essentially stored within the cavity may be up to one-half of the
front-to-back dimension of the seat section or cushion. The present
invention includes configurations in which even greater portions of
the seat sections may reside within the cavity. Typically, the
portion of the seat section that resides within the cavity when the
seat is fully retracted, is about one-third of the seat's
front-to-back dimension. It is also important and significant, that
the cavity is sized such that when the seat is retracted therein,
there is no deformation of the seat or cushion. And, preferably,
the seat retracts horizontally directly into the cavity.
[0160] The provision of one or more cavities in the seating units
of the present invention greatly improves the functionality and
aesthetics of the overall seating unit. Relatively long cushions or
seat sections may be provided and utilized since the cavity feature
accommodates a significant portion of the length, i.e. the
front-to-back dimension, of these cushions or sections when
retracted into the seating unit. Without the cavity, the relatively
long cushions or seat sections would extend outward beyond the
front face of the seating unit. The cavity feature of the present
invention promotes the compactness of the overall seating unit,
particularly when the unit is in a retracted position.
[0161] Another benefit and characteristic of the cavity feature is
that the movable cushions and seat sections are generally received
within and essentially stored when retracted into the cavity,
without any manipulation or changing of their position. This
greatly facilitates ease of use of the unit. Moreover, the cavity
also receives the relatively rigid seat frame, such as seat frame
40 illustrated in FIGS. 3 and 5. The cavity is preferably sized and
shaped to receive and accommodate the entire collection of
relatively rigid and movable seat frame(s) and all cushions or seat
sections disposed thereon. Most preferably, the rearward portion of
the collection of seat frame(s) and cushions or seat sections, when
fully retracted, are positioned immediately adjacent to the
frontward facing interior face along the rear of the seating unit.
This frontward facing interior face generally defines the
rearward-most portion of the cavity. In some applications, it may
be desirable that the rearward portion of either the seat frame(s)
and/or the cushions or seat sections contact the frontward facing
interior face along the rear of the seating unit, when the unit is
placed in its fully retracted position.
[0162] In yet another aspect, if the rear back of the seating unit
is tilted or otherwise angled with respect to a vertical plane
along the rear of the unit, particularly if such configuration
causes the interior surfaces of the seating unit defining the
cavity to also tilt rearwardly, it may be desirable to form the
rearward edge of the seat frame to match the angle of inclination.
Accordingly, when the seat section(s) is (are) fully retracted into
the cavity, and possibly contacting the frontward facing interior
face along the rear of the seating unit, additional clearance and
retraction distance is achieved. That is, by utilizing a seat frame
having a rearward face that is angled to match the angle of
inclination of the backrest, significantly greater portions of the
movable seat or seat section may be retracted into the cavity, as
compared to if the rearward face of the seat frame does not match
the configuration of the rear of the cavity.
[0163] Related to this, additional retraction distances may be
obtained by positioning one or more horizontal braces along the
rear of the unit, such as horizontal brace 32 depicted in FIG. 3,
upward and thus out of the way from the rear portion of the sliding
seat. This practice may provide still further clearance by which
the cavity accommodates the movable seat or seat section(s).
[0164] Another significant feature of the present invention seating
unit relates to the counterbalanced aspect of the unit. In many of
the preferred embodiment seating units described herein, the distal
end of the one or more seat sections provided in the seating unit,
is essentially cantilevered from the seating unit. That is, the
seat sections do not require any support member such as legs or
caster assemblies under the distal end of the seat section. The
distribution of weight of the seating unit is such that even when
the respective seat section(s) are fully extended from the seating
unit, the seating unit will not tip, tilt, or rock forward. In many
embodiments, the weight of the backrest and associated frame will
promote the counterbalance feature of the present invention. Also,
the counterbalance feature may be accomplished by the selection of
particular materials for certain components of the seating unit.
For instance, if the seating unit is faced with an upper limit on
its weight, relatively heavy materials could be utilized for its
rearward components, such as the backrest frame, and lighter
materials employed for components that are disposed in the
frontward region of the unit, such as for example, aluminum or
certain grades of wood. In addition, it is contemplated that
weights could be added along the rear of the seating unit.
[0165] Specifically, in accordance with this counterbalance
feature, the center of gravity (or center of mass) of the seating
unit is always located behind the frontmost support members, which
referring to FIG. 3, correspond to legs 36. Further in this regard,
it will be understood that when the seating unit is in a retracted
position, the center of gravity of the seating unit is located
somewhere within the interior of the unit and generally between the
front and rear faces of the unit. When the seating unit of the
present invention is extended, such that the one or more seat
sections are extended outward from the front portion of the unit,
the center of gravity of the unit, although having moved toward the
front of the seating unit as a result of the seat section(s) being
extended, still remains behind the frontmost support members, e.g.
legs 36 in FIG. 3.
[0166] This counterbalance feature of the present invention is
beneficial in that it eliminates the requirement of providing
support members on the underside of the seat sections. And, this
feature enables the seat sections to be extended over an uneven
floor surface, such as resulting from loose or bunched carpeting.
Of course, it will be understood that the present invention
encompasses seating units utilizing such support members, if so
desired. The counterbalance feature of the present invention
contributes to improved stability of the unit, particularly when
one or more people are seated in the unit and one or more seat
sections are extended.
[0167] In all of the foregoing embodiments, the track, rail, or
glide assemblies providing horizontal movement of the seat or seat
sections, may be biased or spring tensioned to urge the seat or
seat section to either an extended position or a retracted
position. In addition, in all of the embodiments, it may be
preferred to mount or otherwise locate the track, rail, or glide
assemblies along the lower portion of the armrests, or frame
members therefor. This configuration will likely result in a
strengthening effect and promote the overall rigidity of the
seating unit.
[0168] All of the previously noted seating units may utilize seat
cushions that are unattached, i.e. are freely movable. In addition
the seat cushions may be temporarily or releasably attached to the
one or more seat frames by the use of releasable fasteners such as
velcro, or snaps. It is also contemplated that one or more of the
seat cushions may be permanently attached to the movable seat
frames. A permanent attachment configuration may be desirable for
some applications as the seat cushions are less likely to shift or
otherwise move relative to the seat frame, as the seat frame is
being moved.
[0169] FIG. 49 illustrates another preferred embodiment seating
unit in accordance with the present invention. A single seating
unit 0 comprises a backrest 1300, a horizontally positionable seat
1302, a first armrest 1304 proximate a first side 1308, and a
second armrest 1306 proximate a second side 1310, opposite from the
first side 1308. The single seating unit 0 further comprises one or
more front legs 1312 and one or more rear legs 1314. It will be
appreciated that other leg or base configurations may be utilized.
The seating unit further comprises a front face 1316, a seat
cushion 1320 disposed on a seat frame 1324. A seat control 1318 is
provided for enabling movement and selecting a position for the
movable seat frame 1324 and the cushion 1320 disposed thereon. The
seat cushion 1320 has a frontmost portion 1322.
[0170] FIG. 50 is a perspective view of the seating unit 0 depicted
in FIG. 49, however in an extended state. In this state, it can be
seen that the movable seat frame 1324 and seat cushion 1320
disposed thereon, are extended outward from the front of the unit.
As will be appreciated, this state of extension provides
significantly greater seat surface area for supporting an
individual. And, the depth, i.e. the distance from the front to the
rear, of the seat is increased. Most preferably, the seat frame
1324 does not utilize any supports along its front face, such as
proximate a frame front member 1326. Thus, upon extension, the seat
is essentially cantilevered out from the front of the seating unit
0.
[0171] Referring to FIGS. 51 and 52, additional aspects of the
preferred embodiment seating unit 0 are disclosed. These figures
are side elevational views of the preferred embodiment seating unit
0 in a fully retracted state (FIG. 51) and in a fully extended
state (FIG. 52).
[0172] As previously noted with regard to other preferred
embodiment seating units described herein, the seating units of the
present invention define a cavity within a rearward portion of
their interior. That open interior region or cavity as referred to
herein accepts and receives the seat frame and cushion when
retracted into the unit. Referring to FIG. 52, the seat and frame
being fully extended from the front of the seating unit 0, a cavity
1360 is defined within the rearward interior, generally having the
dimensions X, Y, and a length corresponding to the length of the
seating unit. The vertical dimension Y is the distance between the
interior face 1366 of the bottom member 1338, to the lowermost edge
1362 of the backrest 1300. The horizontal dimension X is the
distance between the interior face 1364 of the rear wall 1336 and
generally, the vertical plane intersecting the backrest lowermost
edge 1362. The horizontal dimension X of the cavity may be
increased by providing for the seat frame 1324 to be extended
farther.
[0173] Upon retraction of the seat, i.e. seat frame 1324 and the
cushion 1320, the rear portion of the seat is received within the
cavity 1360, as shown in FIG. 51. Although FIG. 51 depicts
separation between the interior face 1364 of the rear wall 1336 and
the seat frame rearmost member 1382, it may in some applications be
desirable that contact occurs between these components. It is also
evident from a comparison of FIGS. 51 and 52 that the apron 1350
extending from the rear edge of the seat to the backrest 1300 be
long enough to allow full retraction and full extension of the
seat.
[0174] Referring to FIG. 51, when the seating unit 0 is fully
retracted, the unit has a center of gravity cg.sub.R located at
about the center of the unit. Referring to FIG. 52, it will be
noted that upon extension of the seat, the center of gravity shifts
to a new location, cg.sub.E, i.e. the center of gravity of the seat
upon extension. As previously described herein, it is significant
that the center of gravity always be defined at a location between
the front legs 1312 and the rear legs 1314. Particularly when the
seat is extended, it is important that the center of gravity
cg.sub.E be located behind the front legs 1312 as shown in FIG.
52.
[0175] Another desirable feature provided by the present invention
and exemplified by the preferred embodiment seating unit 0, is the
use of a raised rear seat frame member 1382. Referring to FIGS. 51
and 52, it can be seen that the uppermost or top edge of the rear
frame member 1382 is raised above the other seat frame members.
This is desirable to provide a stop or backstop in essence, for the
seat cushion 1320. Such a configuration greatly reduces the
potential for the seat cushion 1320 from becoming displaced or
otherwise separated from the seat frame 1324 during seat
extension.
[0176] And, as previously noted, the use of releasable fasteners
between the seat cushion 1320 and the seat frame 1324 is preferred.
Such releasable fasteners may be in the form of snaps, buttons,
hook and loop systems commonly known as Velcro, zippers, other hook
and loop or eyelet systems, and tie cords. The use of Velcro is
most preferred.
[0177] FIG. 53 illustrates the underside of the preferred
embodiment seating unit 0. The components of the seat frame 1324
are shown as a frame front member 1326, a first frame side member
1332, a second frame side member 1334, and a frame rear member
1330. The members 1326, 1330, 1332, and 1334 are preferably secured
to one another as shown in FIG. 53 and at right angles to form a
rigid square or rectangular shaped seat frame 1324. A plurality of
biasing or cushioning members 1328 are provided within the seat
frame 1324 to promote or provide additional cushioning for the seat
cushion 1320. The seat frame 1324 is horizontally movable with
respect to the back rest 1300, sides 1308 and 1310, and bottom
member 1338 of the seating unit 0. A first and a second extension
assembly 1340 and 1342, similar to other assemblies and mechanisms
described herein for providing movement of a seat, are provided.
The assemblies 1340 and 1342 enable the seat, i.e. the seat frame
1324, to move inward and outward, generally within a horizontal
plane, from the front of the seating unit. An engagement rail 1344
is provided, that together with an engagement element, such as a
positionable pin or latch 1346, enable the seat frame 1324 to be
secured in one of a plurality of positions between a fully extended
state and a fully retracted state. As will be understood, the
engagement rail is affixed to either the movable seat frame or the
stationary frame or carriage of the seating unit. The engagement
element is attached to the other component, such that upon
engagement between the two, the rail and element are temporarily
coupled together, thereby temporarily securing the seat frame to
the remainder of the seat. As will be understood, the engagement
rail and element may take a variety of forms, however typical forms
for the rail include a rail with a plurality of notches or
apertures defined along its length, and typical forms for the
element include a pin or moveable member that may engage a notch or
aperture defined in the rail.
[0178] All of the foregoing aspects and features, particularly
those associated with the single seating unit 0, may be
incorporated or provided in any of the other seating units
described herein. Furthermore, it is to be understood that although
the seating unit 0 is depicted as a single seating unit or chair,
the preferred embodiment seating unit 0 could readily be embodied
in a longer unit such as a loveseat, sofa, or couch.
[0179] The present invention also provides, in yet another aspect,
a system for remote extension or retraction of one or more seat
sections or other moveable components of a seating unit.
Preferably, this system includes a seating unit having an
electrically operated drive for extending and retracting a moveable
seat or seat section. This system further includes a remote control
or remote activation system for activating the electrically
operated drive. Most preferably, this system utilizes a wireless
hand held remote control unit. That remote control unit, upon
activation, transmits an activation signal to a receiver unit which
may be mounted within the interior or underside of the seating
unit. Upon receiving such activation signal, the receiving unit
activates the electrically operated drive to appropriately move the
seat or seat section.
[0180] The use of a remote control system in a motion furniture
product is particularly advantageous because it allows the user to
activate the product while in nearly any position. That is, the
user does not have to sit up, search for a release handle, and pull
or otherwise release that handle. Instead, the user merely pushes a
button or otherwise activates a switch to initiate operation.
[0181] In a most preferred embodiment, a remote control system is
provided for each electrically driven moveable seat. Thus, a single
hand held control unit can be used for selective control and
operation of each seat or moveable component of a seating unit.
[0182] The term "selective operation" is utilized to refer to the
ability to extend and retract a seating unit, and to stop at any
position in between full extension and full retraction.
[0183] The remote control unit may take a variety of forms and
embodiments. For instance, the unit may be integral with, or
incorporated into, the seating unit. The unit could be in the form
of a keypad located on one or both arm rests. Alternatively, the
unit could be in the form of a hand held unit that is attached to
the seating unit by one or more flexible cables or extension
members. More preferably, the remote control unit is a wireless
unit that communicates with the seating unit by radio frequency
(RF) or infrared signals. An RF based system is most preferred.
[0184] Although not wishing to be bound or limited to any
particular system, an exemplary remote control system and
electrically operated drive system could utilize the following
components. A 12 VDC remote control RF based system is used such as
a two channel codelock transmitter available under the designation
Velleman.TM. Kit K6727 (receiver) and Velleman.TM. Kit K6706A
(transmitter). A screw drive, as explained in greater detail
herein, may be driven by a 115 VAC, 1.8 amp motor available from
Motion Systems, Inc., under the designation 7164-0945 T4P64B1.
[0185] It is also contemplated to utilize a second remote control
unit. Such secondary unit could be configured to operate the
seating unit in parallel with a first or primary remote control
unit. In addition, two remote control units could be provided in
which one is a wireless unit and the other is cabled to the seating
unit.
[0186] Furthermore, it is fully contemplated that the one or more
remote control units employed by the present invention seating unit
could also be configured to operate or activate other components of
the seating unit. Such other components include for example, a
tilting mechanism for adjusting the inclination of a moveable back
section, electrically operated massage units in the seating unit,
one or more heating pads or areas of the seating unit, moveable
trays or support pieces, lights, extendable ottomans or foot rests,
tables, integrated coolers or refrigerators, telephones and other
communication equipment, and computer equipment.
[0187] In the event that one or more wireless remote control units
are provided, a variety of structures and techniques are provided
for retaining, storing, and maintaining the unit(s). In one
preferred embodiment, a pocket or retaining area is built into the
seating unit, which pocket being sized to receive the remote
control unit. It is also envisioned to provide a dual holder
assembly for the remote with accommodations to also receive one or
more other remote control units such as are typically used with
conventional televisions.
[0188] Furthermore, it is also contemplated that the present
invention remote control system could be configured such that it
could be operated by a universal remote control unit.
[0189] In a particularly preferred embodiment, the present
invention provides a system for activating an electrically operated
drive system with one or more remote control units that are
incorporated within the seating unit and serve to replace
activation cables, rods, levers, and/or other mechanical
components. This is described in greater detail below.
[0190] FIG. 54 is a perspective view of a frame assembly including
a preferred embodiment electrically operated screw drive assembly
for extending and retracting the seat. FIG. 54 illustrates an
assembly 1400 comprising a frame and a movable seat disposed within
the frame. The seat 1402 may be extended outward from the frame
1404 or may be retracted and received within the frame 1404. The
seat and frame are coupled to one another by an electrically
powered drive system that includes a motor 1410 secured to the
frame 1404, and a screw member 1408 secured to the seat 1402. Upon
activation of the motor 1410, a geared member driven by the motor
output shaft is rotated. That geared member is engaged with the
screw member 1408. Accordingly, upon rotation of the geared member,
the screw member is linearly displaced, thereby causing linear
movement of the seat, i.e. extension and retraction of the seat
1402. Most preferably, the screw member 1408 is releasably attached
to the seat 1402 by use of a set of cotter key and retaining pin
designed as 1406. Upon disengagement of the screw member 1408 from
the seat 1402, the seat may be freely moved. This releasable
feature may be of significant advantage in the event of a power
failure since it readily releases the seat and enables
movement.
[0191] FIG. 55 is a schematic representation of another cable
assembly that is suitable for use in a preferred embodiment seating
unit having two independently moveable seating sections. As shown
in FIG. 55, pulling one of the handles causes pivoting or partial
rotation of a plate about a hinge or axis point. That movement in
turn, pulls or tensions one or more release cables that retract
release pins. Upon release or disengagement of those pins from
brackets of a slide mechanism, the one or more seat section(s) may
be moved to a desired position.
[0192] Specifically, FIG. 55 illustrates a preferred cable
actuation system 1500. This preferred system 1500 comprises one or
more actuation handles or levers, such as pull handles 1502 and
1504. As will be appreciated, pull handles 1502 and 1504 may be
accessible at opposite ends or sides of a seating unit. The handles
1502 and 1504, and corresponding ends of cables 1510 and 1512, are
preferably secured to the seating unit by retainers 1506 and 1508.
Cables, preferably sheathed cables, 1510 and 1512 are secured to
corresponding pull handles 1502 and 1504 as shown and extend to an
actuator plate 1520 at which they are secured by adjustable
tensioning fasteners 1514 and 1516. Actuator plate 1520 is secured
to an interior component of the seating unit such as a frame member
of the seating unit such that the plate 1520 may pivot about an
axle or pivot point 1522. Details of the operation and function of
plate 1520 are provided below.
[0193] Also secured to plate 1520, opposite from cables 1510 and
1512, is a cable 1532. Cable 1532 is secured to plate 1520 by an
adjustable tensioning fastener 1530. Cable 1532 extends from the
plate 1520 to a junction at which the cable 1532 splits into two or
more cables, such as cables 1534 and 1536, that are in
communication with corresponding mechanical actuators.
Specifically, referring further to FIG. 55, cable 1536 terminates
at, and is secured to, a release pin 1552 that engages a slide
assembly 1556. Similarly, cable 1534 terminates at, and is secured
to, a release pin 1550 that engages a slide assembly 1554. The
release pins 1552 and 1550, and corresponding ends of cables 1536
and 1534, are preferably secured by retainers 1540 and 1538.
[0194] The operation of the cable actuation system 1500 is as
follows. A user, wishing to change the position of a seat in a
preferred embodiment seating unit according to the present
invention, pulls one of the handles 1502 or 1504. Pulling of a
handle results in a pulling or tension in a corresponding cable
1510, 1512. That force is applied to one side of the actuator plate
1520, i.e. at the location of attachment of cables 1510 and 1512.
Application of that force results in plate 1520 pivoting about
pivot point 1522. Referring to FIG. 55, plate 1520 pivots in a
clockwise fashion. As will be understood the opposite side of plate
1520 is then displaced such that cable 1532 is pulled or tensioned.
Application of such force is then transmitted to both release pins
1550 and 1552 by cables 1532,1534 and 1536. Tensioning or pulling
of cables 1534 and 1536 results in retraction of pins 1550 and 1552
from corresponding slide assemblies 1554 and 1556. Upon retraction,
the assemblies 1554 and 1556 enable a corresponding seat (not
shown) to be moved to a desired position.
[0195] An alternate actuation system may be utilized, however
similar in many respects to a manual actuation system such as that
depicted in FIG. 55. In this alternate actuation system, one or
more of cables 1510, 1512, 1532, 1534, and 1536; retainers 1506,
1508, 1538, and 1540; plate 1520; and associated hardware; are
replaced by electrical actuation components. In a most preferred
aspect, all of the noted cables, pull handles, actuator plate,
retainers, and associated hardware are replaced with remote control
units that transmit an actuation signal to electrically operated
actuators engaged with the release pins 1550 and 1552. Accordingly,
upon activation of a remote control unit (which could be integral
with the seating unit or remote therefrom), an actuation signal is
transmitted to a pair of actuators that either extend or retract
the release pins from the slide assemblies 1556 and 1554. The
remote control units may be wired to the actuators, or may be
wireless. If the remote control units are wireless, it is most
preferred that they utilize a radio transmission to activate the
actuators.
[0196] FIG. 55 also illustrates a preferred aspect or configuration
of the slide assemblies 1554 and 1556. On each track or bar member
of the assemblies 1554 and 1556, a plurality of outwardly extending
projections are shown. These small projections are most preferably
portions of the track member surrounding an aperture formed in the
track member for receiving a release pin 1550 and 1552. These
portions project and extend away from the longitudinal axis of the
track member. These portions also contain a curved region between
the track member and the projection that facilitates engagement and
disengagement of a release pin with a track member. As will be
appreciated, these curved regions provide a transition between
engagement and disengagement of the release pins and serve to guide
the pins into a respective aperture defined in the track member. As
shown in FIG. 55, the track members having the plurality of
projections are oriented such that the projections extend away from
the side of the track members which face the release pins.
[0197] FIG. 56 illustrates another preferred embodiment mechanical
activation assembly for use in a seating unit. Specifically, FIG.
56 illustrates yet another preferred embodiment actuation system in
accordance with the present invention. This system 1600 comprises
one or more actuating cables or rods, such as cables 1602 and 1604.
These may extend from corresponding actuators such as pull handles
or levers of a seating unit. The cables 1602 and 1604 may extend
through one or more structural or frame members such as members
1640 and 1642. The cables 1602 and 1604 extend and are secured to a
rotatable actuator plate 1618. Preferably, the cables 1602 and 1604
are releasably attached to an actuator bar 1614 by use of slotted
ends 1606 and 1608; and corresponding posts 1610 and 1612
engageable therewith. The actuator bar 1614 is affixed to the
actuator plate 1618 by use of a standoff 1616. Attached to the
actuator plate 1618 are cables 1624 and 1626 which are connected to
release assemblies 1628 and 1630. Each release assembly includes a
retractable release pin 1632 and 1634. As will be understood, the
pins 1632 and 1634 are engageable with sliding mechanisms as
described herein.
[0198] The operation of the system 1600 is as follows. Upon pulling
or tensioning of either cable 1602 or 1604, the actuator plate 1618
is rotated in the direction of the arrow as shown in FIG. 56.
Rotation of plate 1618 in turn, results in pulling or tensioning of
cables 1624 and 1626 which in turn retract release pins 1632 and
1634.
[0199] It will be appreciated that the present invention actuation
systems, especially those utilizing a plurality of cables, may also
employ one or more components that produce a mechanical advantage
such as a pulley system similar to a block and tackle system.
Specifically, in some applications it may be particularly
beneficial to incorporate such a component into a cable based
system. For instance, a relatively short travel, high force release
pin (such as may engage with a sliding assembly) may be retracted
by use of a mechanical advantage component requiring a long travel,
low force actuation pull or movement. Other mechanical advantage
components or force translation components can be utilized in the
various preferred embodiment actuation systems described herein,
such as cams, pulleys, inclined ramping surfaces and the like.
[0200] A preferred embodiment seating unit according to the present
invention was subjected to a series of durability testing trials.
Specifically, a sofa type seating unit with a single sliding seat
assembly with a manual actuation assembly as described herein, was
subjected to repetitive seat extending and seat retraction tests
while a static load was applied to the seat. A 750 pound load was
placed on the seat and the seat was extended and retracted
throughout its full range of motion. The seating unit was subjected
to 200,000 cycles of this repeated motion without any observed
failure. This is remarkable and believed to result from the unique
and efficient design of the present invention seating unit.
Moreover, this is incredible in view of the fact that furniture
industry testing standards for motion furniture are typically based
upon 25,000 cycles without any weight or load applied to the seat
or unit.
[0201] Although the present invention seating units have been
described and illustrated as stand alone units that may be used in
nearly any location or setting, the present invention also provides
nonmobile seating units that are built into a room or living space.
Such "built in" seating units may be desirable for lounges or
theaters. The backrest portions of such seating units could be
incorporated directly into a wall or other fixture of a building or
room.
[0202] Although the present invention has been primarily described
in terms of various seating units, it will be appreciated that the
present invention also encompasses other types of furniture units
such as beds, futons, and hybrid units that feature combinations of
various aspects of sofas, couches, chairs, beds, futons and the
like.
[0203] The present invention will provide significant use in many
areas besides residential furniture application. In addition to
that prime utility, other contemplated applications include, but
are not limited to uses or applications in hotels, motels, inns,
cottages, chalets, lodges, airplanes, airliners, recreational
vehicles, mobile homes, campers, trailers, dormitories, schools,
lounges, office lobbies, cruise ships, boats, marine staterooms and
decks, retail stores including book stores, legal and medical
officers, casinos, nightclubs, rapid transit terminals, airports,
train stations, shelters, jails, prisons and nearly any office or
administration center.
[0204] The invention has been described with reference to several
preferred embodiments. Obviously, alterations and modifications
will occur to others upon a reading and understanding of this
specification. It is intended to include all such modifications and
alterations insofar as they come within the scope of the appended
claims or the equivalents thereof. Moreover, it will be understood
that features of a previously described preferred embodiment may be
utilized in any of the other preferred embodiments described
herein.
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