U.S. patent number 3,743,351 [Application Number 05/164,269] was granted by the patent office on 1973-07-03 for laterally expandable couch.
Invention is credited to Charles J. Harris.
United States Patent |
3,743,351 |
Harris |
July 3, 1973 |
LATERALLY EXPANDABLE COUCH
Abstract
A laterally expandable couch comprising two framed seat
sections. Each seat section has a plurality of slide rails secured
thereto aligned with slide rails secured to the adjacent seat
section. A plurality of slide bars is slidably held within adjacent
pairs of aligned slide rails to enable the seat sections to be
laterally moved with respect to each other.
Inventors: |
Harris; Charles J. (Walnut
Creek, CA) |
Family
ID: |
22593730 |
Appl.
No.: |
05/164,269 |
Filed: |
July 20, 1971 |
Current U.S.
Class: |
297/107; D6/370;
297/112; 297/233; 5/18.1; 297/118 |
Current CPC
Class: |
A47C
1/023 (20130101); A47C 17/132 (20130101); A47C
13/00 (20130101) |
Current International
Class: |
A47C
17/13 (20060101); A47C 13/00 (20060101); A47C
17/00 (20060101); A47c 013/00 () |
Field of
Search: |
;297/232,236,237,234,233,235,107,105,112,115,118
;5/18,12,59R,181,183,185,52 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Zugel; Francis K.
Claims
What is claimed is
1. An expandable couch comprising
two separate framed seat sections slidably movable relative to each
other, each of said seat sections including a back portion, a seat
portion, supporting legs, and at least two slide rails secured
thereto in aligned relationship with slide rails secured to the
adjacent seat section,
slide bars slidably interlocked with the aligned pairs of adjacent
slide rails whereby said seat sections are capable of being
expanded relative to each other by the movement of said slide rails
with respect to said slide bars,
means preventing said sections from being slid apart beyond
slightly more than the width of an insert ottoman and back
cushion,
an ottoman formed for straddling the slide rail/bars and being
removably disposed between said seat sections, said ottoman
matching said seat sections whereby when said ottoman is in place,
it effectively elongates said two section couch into a three
section couch,
a matching back cushion for insertion between the back portions of
said seat sections, and
extensible back support means for supporting said back cushion.
2. The expandable couch of claim 1 wherein each of said seat
sections is provided with a plurality of removable cushion
supporting members on the back and seat portions thereof.
3. The expandable couch of claim 1 wherein each of said separate
seating section frames have a plurality of slide rails secured
thereto in aligned relationship with a plurality of slide rails
secured to the adjacent seating section, at least one of said slide
rail/bars forming a back support member for supporting the back
cushions.
4. The expandable couch of claim 3 wherein each of said slide rails
includes a slot of predetermined length formed therein and each of
said slide bars includes a dowel at each end thereof, said dowels
being insertable into adjacent slots whereby the outward movement
of said seating sections with respect to each other is stopped when
said dowels reach the end of said adjacent slots.
5. An expandable couch frame comprising two adjacent separate
seating section frames, each of said seating frames having a
rectangular back frame portion, a rectangular seat frame portion
fixed to said rectangular back frame portion, a support leg fixed
at each of the four corners of said seat frame portion, and an arm
support rail attached to said seating sections at the outside edge
of said back frame and said seat frame portions,
at least two slide rails being mounted in the back frame portion of
each of said seating sections and at least two slide rails being
mounted in each of said seat portions, said slide rails mounted in
each of said seating sections being in aligned relationship with
the slide rails in the adjacent seating section,
corresponding slide bars slidably interlocked with the aligned
slide rails mounted within each of said seating sections whereby
said seating sections may be moved relative to each other and to
said slide bars to thereby extend said couch from either of its
ends,
a slot of predetermined length formed in each of said slide
rails,
a dowel at each end of said slide bars insertable into one of said
slots whereby the outward movement of said seating sections with
respect to each other is stopped when said dowels reach the end of
said slots,
an ottoman formed for straddling the slide rail/bars mounted in and
extending between each of said seat portions, said ottoman being
removably disposed between said sections and matching said seat
sections whereby when said ottoman is in place, it effectively
elongates said two section couch into a three section couch,
and
a matching back cushion for insertion between the back portions of
said seat sections on top of said ottoman.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates generally to expandable furniture and in
particular to a laterally expandable couch comprising two framed
seating sections.
2. Description of the Prior Art
Laterally expandable chairs or seats wherein one seat portion is
movable with respect to the other are known. One such seat is shown
in U. S. Pat. No. 2,242,617 to Parry. The patent discloses a chair
comprising two side arms, a seat portion and a back. The side arms
of the chair are relatively movable away from one another and the
seat portion and back are extensible to allow the chair as a whole
to be extended laterally to accommodate one or more additional
occupants. Each of the seat portions contains a hingedly attached
seat extension which automatically pivots into place to support an
additional occupant as the corresponding side arm, within which the
extension normally fits, is moved laterally outwardly. The back of
the chair is also provided with two hingedly mounted extensions,
which are automatically pivoted into place to support the back of
an occupant when the chair is in the extended position. The entire
operation of extending the seat is controlled by links whereby the
arm can only remain in one of two positions, i.e., fully opened or
fully closed.
U. S. Pat. No. 1,530,420 to W. Schmitt discloses a convertible
chair having side frames which are connected by a plurality of
slidably interengaging bars. One of the bars carries a pivoted back
member. The slidable, telescopic engagement of the interengaging
bars permits the frames to be pulled apart any desired distance.
The chair may also be provided with a cross strut connected on the
underside of a pair of slidable sections, if the expanded length of
the chair is more than a certain amount. When extended into a
predetermined open position, the pivoted back member is folded down
onto the slidable bars to act as one of the load engaging frames.
Therefore, in the fully extended position, the convertible chair of
the patent may be used as a bed, but fails to disclose a couch or
seating member having a back support.
The expandable couch of the present invention distinguishes from
the prior art by the provision of a plurality of slidable
supporting bars secured in hollow portions in both the back and
seating sections whereby the couch may be extended a predetermined
distance from either end, and the hollow portions may be used for
storage.
SUMMARY OF THE INVENTION
The present invention comprises a laterally expandable couch having
two framed seat sections connected together by a plurality of slide
bars slidably held within a plurality of pairs of aligned slide
rails secured in the adjacent seat sections, whereby the seat
sections are slidably movable relative to each other and to their
connecting slide bars.
OBJECTS OF THE INVENTION
It is therefore an important object of the present invention to
provide an expandable couch frame having two separate framed seat
sections which are extendable relative to each other to provide a
further framed seating portion.
Another object of the present invention is the provision of a
strengthened expandable couch which is laterally supported in all
of its extended positions.
A further object of the present invention is to provide a laterally
expandable couch having two separately movable seat sections with a
wide range of possible lateral extensions of the seat sections.
Still another object of the present invention is the provision of a
rigid, rugged expandable couch frame which can stand up under
severe use and to which a large variety of seating materials may be
applied.
And still a further object of the present invention is to provide
an expandable couch and a separate ottoman, which ottoman may be
inserted into the open portion of the fully extended couch to
provide a seating portion therefor.
Other objects and advantages of the present invention will become
apparent when the expandable couch of the present invention is
considered in conjunction with the accompanying drawings.
DESCRIPTION OF THE DRAWINGS
FIG. 1 is a front perspective view of the frame of the expandable
couch of the present invention in the closed position having the
back and seating portion of one seat section thereof covered by
supporting boards or slats;
FIG. 2 is a front perspective view of the couch of FIG. 1 in the
fully expanded position;
FIG. 3 is a side plan view, partly in cross-section, of the
expandable couch of the present invention;
FIG. 4 is an enlarged fragmentary perspective view, partly in
cross-section, showing the cooperation of the slide rails and slide
bars of the couch of the invention in the fully extended position,
together with the coaction of the dowels and slot arrangement which
limit the movement of the rails with respect to the bar;
FIG. 5 is a front perspective view of the expandable couch of FIG.
1 carrying cushions and having material covering the arms and other
edge portions thereof;
FIG. 6 shows a separate ottoman which in one embodiment of the
present invention, is used to form the central seating portion of
the expandable couch in its fully open position; and
FIG. 7 illustrates the fully extended couch of FIG. 5 showing the
central seating portion with a back cushion and a seating cushion
or the ottoman of FIG. 6 inserted between the extended seat
sections.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring now to the drawings, and in particular to FIGS. 1 through
4, there is illustrated an extendable frame 11 comprising two
separate framed seat sections 13,15, preferably made from plastic
or wood. Although only one seat section 13 is shown clearly and
described hereinafter, it is to be understood that each of the seat
sections is a mirror image of the other section. Each seat section
13,15 includes a back or rear portion comprised of a top board 17,
a side board 19, and a back board 21 forming a substantially hollow
chamber or portion 23 therebetween. Supported within the hollow
portion are a plurality of slide rails 25,27,29, two of which 25,27
are vertically disposed and one of which 29 is horizontally
disposed therein. Each of the slide rails contains a dovetail
shaped groove. The two vertically disposed rails 25, 27 are fixed
near the top and bottom of the back board 21, in any convenient
manner, such as by gluing or nailing. The horizontally extending
slide rail 29, which preferably rests partly within and partly
without of the rear chamber 23, is supported by end blocks, only
one of which 31 is shown. The end blocks are secured to and
supported by a baseboard 33, in any suitable manner.
The seating portion of each of the seating sections 13,15 includes
the base board 33, a front board 35, and a side board 37, which,
together with the back board 21, form a bottom chamber or hollow
portion 39 therebetween. The bottom hollow portion is provided with
two vertically extending rails 41,43 secured to the base board 33.
Each of the rails 41,43 have dovetail shaped grooves formed
therein. The slide rails 41,43 are preferably arranged so as to
face each other in the hollow 39 (see FIG. 3), with one slide rail
43 also being fixed to the front board 35. To further strengthen
the couch frame, vertical and horizontal frame members 45,47 are
provided along the inside edge of each seat section. The outside
end of each seat section frame is provided with an arm rest frame
comprising three vertically extending support members 51, a
horizontally extending top member 53, and a bottom side board 55,
fixing the bottoms of the three vertically extending members 51
together. Vertically extending feet portions 57, of any desired
shape are secured to the four corners of each seating section.
As shown in the right-hand section of FIGS. 1 and 2, and in
cross-section in FIG. 3, the hollow portions 23,39 are covered by a
plurality of cushion supporting boards or slats 59. If considered
suitable, a single large cushion supporting board may be provided
to replace the plurality of slats. Furthermore, the single or
plurality of supporting boards may be secured to the end boards in
any suitable manner, such as by nailing, to thereby form a rigid
hollow seating section. In the preferred embodiment shown, however,
the plurality of slats 59 are merely slipped into place. This
enables each of the slats to be easily removed from the frame to
allow cushions, linen, or other materials to be stored within the
hollow portions 23,39. In addition, further slats to be used to
form cushion supports for back and seating portions of an extended
portion 61 of the couch (see FIG. 2) may be stored therein.
Some of the slide rails 25,29,35 are provided with extending lip
portions 63,65,67 for supporting the ends 69 of the slats 59 when
they are placed on the couch frame. As shown, the ends 69 of each
of the slats are preferably of reduced cross-section to facilitate
insertion thereof onto the back and seating portions.
If suitable, the vertically extending rail 41 also may be provided
with an extending lip 71 for further support of the slats 59
forming the seating portion of the seating sections 13,15.
As shown, each of the seating sections 13,15 contains five slide
rails 25,27,29,41,43 secured therein. Each of these rails is
aligned with a corresponding slide rail secured in the adjacent
seating section, and each of the aligned pair of slide rails is
provided with a slide bar 73,75,77,79,81. The slide bars have a
dovetailed cross-section which fits into the dovetail shaped groove
formed in the slide rails to thereby slidably connect the seating
sections 13,15. It should be understood that any number of slide
bars and rails may be provided to connect the seating sections,
depending on the size and kind of couch frame to be built. These
rails, however, must be of such a size and so positioned that they
provide the assembled couch frame with the same ease of expansion,
rigidity, and strength provided by the assembly shown.
Turning now to FIG. 4, the coaction of each of the slide bars
within its rails is more clearly illustrated. Both ends of a slide
bar, such as 79, are provided with a dowel 83 which is carried in a
slot 85 formed in each of the aligned slide rails 41. The movement
of the dowels 83 in the slots 85 is limited by the length of the
slots, thereby limiting the outward movement of the slide rails 41,
from the contacting position shown in phantom line. In the same
manner, each of the slide rails shown in FIGS. 1-3 is limited in
outward movement, thereby limiting the possible expansion of the
couch frame 11.
When it is desired to expand the couch frame 11, either or both of
the seating sections is slid outwardly with respect to the other.
If sufficient force is applied to an arm rest of a seating section,
the slide rails of the seating section slide over the connecting
slide bars, until the dowels at the end of the slide bars strike
the end of the slots within which they ride. Therefore, if
sufficient slat members as well as back and seating cushions of the
proper size, are available to fit into the space formed between the
two seating sections in their different extended positions, a couch
of any desired length may be formed.
If considered desirable, the slots formed within each of the slide
rails may be replaced by a plurality of holes, spaced apart
predetermined increments. The dowels may be slidably mounted within
the slide bars whereby the dowels may be slid into and out of the
holes when aligned therewith. In this manner, each of the seating
sections may be limited in outward movement to predetermined
increments, to form different extended central seating portions of
known width.
As shown in phantom line in FIG. 3, cushions may be provided on the
slat or support boards 59 and the front board 35 and the top board
17 may be covered with any desired material. Furthermore, as shown
in FIGS. 5 and 7, the side arms of each of the seating sections may
also be covered with material to enhance the appearance of the
couch.
FIG. 6 illustrates a hassock or ottoman 87, preferably formed with
slots (not shown) which fit over the extended slide bars 79,81 of
FIG. 2. The ottoman is insertable over the slide bars 79,81 into
the bottom of opening 61 to form the central seating portion shown
in FIG. 7.
An important advantage of the present invention resides in the
design of a two-section expandable couch that is easily broken down
into its component parts.
A further advantage of the present invention is the provision of a
rigid, rugged expandable couch having a plurality of slide rails
and slide bars whereby the couch may be easily expanded.
Another advantage of the present invention is provided by the
limited lateral expansion of the couch.
A still further advantage of the present invention resides in the
provision of storage areas formed within each of the seating
sections of the couch to store cushions, linen, support members for
the cushions, and the like.
Yet another advantage of the present invention resides in the use
of a separate ottoman designed to be used as a seat or a foot rest,
and which may be inserted into the open bottom portion of the fully
expanded couch to form the seating portion thereof.
It is still a further advantage of the present invention to provide
an aesthetically pleasing, easily extended couch which may
conveniently handle any extra company but which does not take up an
unnecessary amount of room in its unexpanded position.
Various modifications are possible and may obviously be resorted to
by those skilled in the art without departing from the spirit and
scope of the invention, as hereinafter defined by the appended
claims, as only a preferred embodiment thereof has been
disclosed.
* * * * *