U.S. patent number 3,649,074 [Application Number 04/804,341] was granted by the patent office on 1972-03-14 for baby seat and collapsible support frame.
This patent grant is currently assigned to Quentin H. McDonald. Invention is credited to Roger M. Casavant, Quentin H. McDonald, Ralph M. Nowak, Richard L. Panicci.
United States Patent |
3,649,074 |
McDonald , et al. |
March 14, 1972 |
BABY SEAT AND COLLAPSIBLE SUPPORT FRAME
Abstract
The baby seat is supported on the collapsible support frame by
an interlocking relationship. The baby seat when not supported on
the support frame has a pivotal extension bar at the rear which
increases the support base area for the seat. The seat is
adjustable into a number of inclined positions.
Inventors: |
McDonald; Quentin H.
(Scarsdale, NY), Panicci; Richard L. (Westfield, MA),
Casavant; Roger M. (Thompsonville, CT), Nowak; Ralph M.
(Wilbraham, MA) |
Assignee: |
McDonald; Quentin H.
(Scarsdale, NY)
|
Family
ID: |
42173843 |
Appl.
No.: |
04/804,341 |
Filed: |
January 10, 1969 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
|
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730737 |
May 21, 1968 |
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Current U.S.
Class: |
297/153; 297/56;
297/377; D6/339; 297/130; 297/327; 297/253 |
Current CPC
Class: |
A47D
1/004 (20130101); A47D 1/023 (20170501); A47D
1/04 (20130101); A47D 1/002 (20130101); A47D
1/10 (20130101); A47D 1/0081 (20170501) |
Current International
Class: |
A47D
1/00 (20060101); A47c 013/00 () |
Field of
Search: |
;297/253,255,254,152,377,130,134,22,30,51,56,57,153,433,436,437,423,327,328,118
;182/150 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: McCall; James T.
Parent Case Text
This application is a continuation-in-part of copending application
Ser. No. 730,737, filed May 21, 1968 now abandoned.
Claims
What is claimed is:
1. A baby seat comprising
a frame having a pair of upstanding arms;
a chair pivotally mounted on said arms for supporting an
occupant;
at least one bracket fixedly mounted on the rear of said chair and
containing a plurality of aligned slots therein; and
a bar pivotally mounted on said arms and releasably retained in a
selective one of said slots for locking said chair in a selective
position relative to said frame.
2. A baby seat as set forth in claim 1 including a pair of said
brackets wherein each bracket includes an aperture therethrough
communicating with said slots and said bar is fixedly retained
within said aperture whereby said bar is retained against movement
away from said brackets.
3. A baby seat as set forth in claim 1 wherein said chair is
pivotally mounted at an intermediate point of said arms to pivot
within the confines of said arms.
4. A baby seat as set forth in claim 1 further comprising an
extension bar pivotally mounted on said frame to the rear of said
chair and retaining means on said frame for releaseably securing
said extension bar in an extended position substantially
horizontally relative to said frame.
5. A baby seat as set forth in claim 4 wherein said retaining means
includes a slot therein for receiving said bar therein to hold said
bar in said extended position and a shoulder spaced from said slot
for holding said bar in a retracted position.
6. A baby seat as set forth in claim 1 wherein said frame includes
a U-shaped horizontal tube and which further comprises an extension
bar pivotally mounted on said frame to the rear of said chair and a
pair of restraining members of resilient material mounted on the
ends of said tube for securing said extension bar in an extended
position substantially horizontally with respect to said tube.
7. A baby seat as set forth in claim 6 wherein said tube includes
means for receiving said extension bar therein in releaseable
engagement to maintain said extension bar in a retracted position
beneath said frame.
8. A baby seat as set forth in claim 7 wherein said extension bar
includes an inclined end at the end remote from said chair.
9. A baby seat as set forth in claim 8 wherein each said
restraining member is made of resilient plastic material.
10. A baby seat and support frame assembly comprising
a collapsible support frame for collapsing into a generally
flattened configuration, said support frame including receiving
means at one end thereof; and
a seat removably mounted on said support frame, said seat including
a means at the rear thereof removably received in said receiving
means of said support frame and a means at the front thereof
removably secured on said support frame to lock said seat to said
support frame to maintain said support frame in an opened
supporting position with said seat thereon.
11. A baby seat and support frame assembly as set forth in claim 10
wherein said receiving means is an upstanding U-shaped bar mounted
on said support frame and said means at the rear of said seat is a
substantially horizontal U-shaped bar mounted on said seat and
projecting through said bar on said support frame.
12. A baby seat and support frame assembly as set forth in claim 10
wherein said receiving means is an upstanding bar mounted on said
support frame to define a recess and said means at the rear of said
seat is a horizontal connecting piece of said seat disposed within
said recess.
13. A baby seat and support frame assembly as set forth in claim 10
wherein said means at the front of said seat includes a catch
having a recess and said support frame has a stud thereon received
in frictional engagement in said means, said catch being made of
resilient plastic material.
14. A baby seat and support frame assembly as set forth in claim 10
which further comprises a tray having a pair of gripping locks
thereon in opposed relation, said tray being mountable on said seat
in a horizontal position and being mountable on said support frame
in a stored position.
15. A baby seat and support frame assembly as set forth in claim 10
wherein said seat includes a frame having a pair of upstanding arms
and a chair pivotally supported on said arms.
16. A baby seat and support frame assembly as set forth in claim 15
which further comprises a tray having a pair of gripping locks
thereon in opposed relation, each said gripping lock having a
depending flange thereon for enveloping one of said arms to secure
said tray in front of said chair.
17. A baby seat and support frame assembly as set forth in claim 16
wherein said flange is pivotally mounted and includes a digitated
edge defining a plurality of recesses and each said arm includes a
projecting pin received in one of said recesses in abutment with
said edge.
18. A baby seat and support frame assembly as set forth in claim 16
wherein each said gripping lock includes an outwardly directed
flange for manual gripping to pivot said depending flange
outwardly.
19. A baby seat and support frame assembly as set forth in claim 10
wherein said support frame includes a pair of leg frames pivotally
mounted with respect to each other and a foot rest assembly
pivotally mounted on one of said leg frames in an articulated
manner, said foot rest assembly having a tread thereon and a stop
bar thereon abutting said one leg frame to position said tread
below said chair.
20. A baby seat and support frame assembly as set forth in claim 19
wherein said tread is adjustably mounted thereon and includes a
pair of flexible resilient depending ears at the ends thereof, each
said ear having a button thereon received in an aperture of said
one of said leg frames to lock said tread in place.
21. A baby seat and support frame assembly as set forth in claim 10
wherein said receiving means includes a substantially U-shaped bar
having a portion overlying the rear of said seat, whereby said seat
is locked on said support frame at the front and rear thereof.
22. A tray for a baby seat including a pair of gripping locks on
opposed sides of said tray, each said gripping lock having a
depending first flange of curved contour thereon for a least
partially enveloping a correspondingly shaped member therein to the
inside of said tray and an outwardly directed second flange for
manual gripping thereof to radially rotate said first flange
outwardly of said tray about the longitudinal axis of said gripping
lock whereby said first flange is released from the enveloped
member.
23. A tray as set forth in claim 22 wherein each said gripping lock
is pivotally mounted to the underside of said tray.
24. A tray as set forth in claim 23 wherein each said gripping lock
is spring biased inwardly of said tray.
25. A tray as set forth in claim 22 wherein each said first flange
includes a digitated edge defining a plurality of recesses for
receiving a protuberance of the enveloped member whereby said tray
is longitudinally adjustable relative to the enveloped members to
be locked in one of a number of positions relative to the enveloped
members.
26. A collapsible support frame comprising a pair of cross-legged
frames hinged to each other at intermediate points thereof and a
collapsible foot rest assembly pivotally mounted on one of said
frames between a first and a second position in an articulated
manner, said foot rest assembly having a tread thereon and a stop
bar thereon abutting said one frame to fixedly position said tread
in said second position outwardly of said one frame, said foot rest
assembly being collapsible with said frames into a generally
flattened configuration in said first position.
Description
This invention relates to a baby seat. More particularly, this
invention relates to a portable baby seat and support assembly.
Heretofore, various baby chair assemblies have been known wherein a
baby seat is supported on a collapsible support frame. Generally,
these assemblies have been used as high chair assemblies in order
to position a baby or small child in an elevated position for
feeding, etc. In addition, such assemblies have been used as
described in my copending patent application, entitled Portable
Baby Chair, Ser. No. 622,194, filed Mar. 10, 1967, wherein the seat
is demountable from the support frame for use, for example, as a
car seat.
However, in many instances these heretofore baby seat assemblies
have required various types of releaseable locks to maintain the
baby seat on the support frame. Generally, the locks have been
complex in operation such that it has been difficult as well as
inconvenient to operate the locks upon mounting or removing the
baby seat from the support frame. Also, the baby seats which have
been used have been found to be bulky and heavy so much as to be
inconvenient for use as a car seat.
Accordingly, it is an object of the invention to provide a baby
seat which is useful as a car seat.
It is another object of the invention to easily and quickly mount a
baby seat on a support frame.
It is another object of the invention to provide a portable baby
chair assembly which is of light weight construction.
Briefly, the invention provides a portable baby chair assembly
which includes a support frame which is collapsible into a
generally flattened configuration and a seat which has an
adjustable seating assembly therein and which is adapted for
removable mounting on the support frame. In addition, means are
provided for releaseably locking the seat on the support frame when
the seat is to be utilized with the support frame, for example, as
a high chair.
In one embodiment of the invention, the support frame is
constructed of a pair of crosslegged frames which are adapted to
open into a crossed supporting position, and the baby seat is
constructed to rest upon the opened support frame. Also, the means
for releaseably locking the seat on the support frame incorporates
individual components of a locking assembly on each of the seat and
support frame. This locking assembly includes a tab receiving slot
on one leg frame of the support frame and either a tab means on the
rear of the baby seat which is passed into the slot or a horizontal
connecting piece which passes under the receiving slot. In
addition, a friction lock is mounted on the front of the baby seat
to snap onto the other leg frame of the support frame to maintain
the baby seat in place. For example, in order to mount the baby
seat on the opened support frame, the seat is first inclined and
moved so that the tab means on or horizontal connecting piece at
the rear of the seat passes into the tab receiving slot on the
support frame and thereafter the seat is pivoted to snap the
friction lock down onto the support frame. Removal of the seat
occurs in an opposite manner by first exerting a manual force to
release the friction lock from the support frame and then manually
moving the seat away from the support frame.
In addition to being supported on the support frame, the baby seat
is constructed to be seated on any substantially flat surface. To
this end, in one embodiment, the baby seat is constructed of a
tubular metal frame which includes a pair of upstanding arms
between which a chair is pivotally mounted. In addition, a locking
bar is pivotally mounted on the arms to engage in one of a number
of slots of one or more slotted members secured to the back of the
chair so that the chair can be locked into one of several
positions. Also, in order to further insure the stability of the
baby seat when the chair is placed on an uneven or rough surface,
an extension bar is pivotally mounted on the metal frame to extend
horizontally of the base of the metal frame so as to increase the
extent of the base. The extension bar is maintained in place by
being snapped into a pair of friction locks, each of which is
mounted on the rear of the base of the metal frame. These friction
locks can also serve to hold the extension bar in an upright
position behind the chair when the chair is positioned in the
forwardmost positions. Alternatively, when not in use, the
extension bar can be folded up under the frame of the baby seat and
held out of the way in this storage position by a pair of friction
catches of, for example, a plastic material such as Nylon.
The extension bar of the baby seat also serves to secure the seat
in place when the seat is mounted in a car by being inserted in
wedging relation between the seat and the back of the seat in the
car. To further maintain the baby seat in position the end of the
extension bar is inclined upwardly at a slight angle so as to lie
behind the back of the car seat or become wedged within the
interior of the car seat.
The support frame is also provided with a collapsible foot rest
assembly which is mounted on one of the crosslegs under the front
of the baby seat. The foot rest assembly is constructed with a
pivotal linkage to be collapsed with the crosslegs into a flattened
configuration. This foot rest assembly also includes a tread which
is selectively mounted in one of a number of fixed positions.
Also, the baby chair is provided with a tray which is adjustably
mountable on the seat when in use as a feeding tray and mountable
on the support frame when not in use. The tray is constructed with
a pair of releaseable gripping locks on opposite sides to engage
across the arms of the baby seat frame to provide a surface for
supporting food, toys, etc., as well as to engage across one of the
leg frames of the support frame to be stored with the support frame
when collapsed into a flattened configuration. The releaseable
gripping locks are constructed to cooperate with a stud in each arm
of the baby seat so as to be positioned in one of a number of
positions forwardly or rearwardly depending on the size of the
child seated in the seating assembly.
The tray and foot rest when mounted in their secondary positions
cooperate with the support frame when collapsed to define a
generally flattened configuration.
When in use, the baby chair assembly provides a sturdy reliable
support for a baby or child occupant while not in use the assembly
is easily stored. In this latter event, the baby seat is removed
from the support frame and the support frame is collapsed into a
flattened configuration with or without the tray. The baby seat can
also be used without the support frame by being easily carried from
place to place and mounted on any suitable flat surface such as a
table top, upholstered chair, or car seat.
These and other objects and advantages of the invention will become
more apparent from the following detailed description and appended
claims taken in conjunction with the accompanying drawings in
which:
FIG. 1 illustrates a perspective front view of a baby seat and
support assembly of the invention;
FIG. 2 illustrates a perspective back view of a baby seat and
support assembly of FIG. 1 with the tray and foot rest assembly in
the stored position;
FIG. 3 illustrates an enlarged side view of the baby seat and
support assembly of FIG. 1;
FIG. 4 illustrates an enlarged front view of the baby seat and
support assembly of FIG. 1 showing the connection of a tray of the
invention connected to the baby seat;
FIG. 5 illustrates a side view of the baby seat of the invention
with the chair in two extreme positions;
FIG. 6 illustrates a side view of the support frame of the
invention with the foot rest in two extreme positions;
FIG. 7 illustrates a side view of the support frame in a collapsed
flattened configuration;
FIG. 8 illustrates an enlarged cross-sectional view of a
releaseable gripping lock on a tray;
FIG. 9 illustrates a cross-sectional view of the releaseable
friction lock on forward end of the seat;
FIG. 10 illustrates a partial cross-sectional view of a tread
according to the invention;
FIG. 11 illustrates a side view of another embodiment of a baby
seat of the invention;
FIG. 12 illustrates an enlarged perspective view of a modified
friction lock for the extension bar;
FIG. 13 illustrates a perspective view of a modified releaseable
friction lock;
FIG. 14 illustrates a cross-sectional view of the friction lock of
FIG. 13 in engagement with the support frame;
FIG. 15 illustrates a fragmentary view of the engagement of the
rear of the seat in the support frame; and
FIG. 16 illustrates a view of a restraining strap in place on the
seat.
Referring to FIGS. 1 and 2, the baby seat and support frame
assembly 11 includes a support frame 12 and a baby seat 13 mounted
on the support frame 12 in an elevated position.
Referring to FIGS. 1, 3 and 6, the support frame 12 is constructed
of a pair of U-shaped leg frames 14, 15 which are pivoted together
at intermediate points by a common cross bar 16 in a crosslegged
manner. The leg frames 14, 15 are formed of tubular metal
construction and are prevented from unrestrained movement relative
to each other by slotted retaining bars 17. Each retaining bar 17
is pivotally mounted on a leg frame 15 and slidably receives a stud
18 fixedly mounted on the opposite leg frame 14. In the extreme
open position of the leg frames 14, 15, the stud 18 is positioned
at the end of the slot 19 in the retaining bar 17. The lower ends
of the leg frames 14, 15 are each provided with a cover cap 20 of
suitable material such as plastic or rubber which also serves to
provide a frictional gripping surface for a floor surface.
The support frame 12 also includes a foot rest assembly 21 which is
mounted on the forward leg frame 14 in a dependent manner. The foot
rest assembly 21 includes a U-shaped tubular bar 22 which is
pivotally secured at the ends as by rivets 23 to tabs 24 projecting
downwardly and outwardly from the cross bar of the leg frame 14.
The foot rest assembly 21 also includes an articulated linkage 25
which serves to position the bar 22 outwardly relative to the
support frame 12 when the support frame 12 is opened. The linkage
25 includes a link 26 pivotally mounted to each depending leg of
the forward leg frame 14, a stop bar 27 rotatably mounted in each
of the links 26 and a link 28 fixed at one end to the stop bar 27
and pivotally secured to the bar 22. The stop bar 27 is sized to
extend across the leg frame 14 so as to abut the leg frame 14 upon
pivoting into its uppermost or lowermost position. The linkage 25
is operated in a manner to pivot the stop bar 27 upwardly against
the leg frame 14 so as to fix the outward position of the bar 22
relative to the support frame 12 and seat 13 and to pivot the stop
bar 27 downwardly against the leg frame 14 so as to collapse the
bar 22 against the support frame 12.
In addition, referring to FIGS. 1, 3 and 10, the foot rest assembly
includes a tread 29, for example, of plastic material such as
Nylon, which is adjustably mounted across the bar 22. Each end of
the tread 29 is provided with a depending tubular ear 30 which is
slotted to receive a leg of the bar 22 in loose fit relation and an
upwardly projecting button 31 at the lower end of the ear 30 which
is sized to be received in one opening 32 of a series of
longitudinally disposed openings 32, for example, three, in the leg
of the bar 22. The ear 30 is sufficiently flexible and resilient to
permit removal and insertion of the button 31 in a desired opening
32. This allows the tread 29 to be adjustably mounted in a position
suited to the occupant of the seat 13.
Referring to FIGS. 3 and 9, the forward leg assembly 14 includes a
stud 33 which is fixedly mounted at a central point of the cross
bar of the leg assembly 14. The stud 33 passes diametrically
through the cross bar and includes an enlarged head 34 protruding
at an upwardly inclined angle from the cross bar. This stud 33
forms a component of a releaseable friction lock 35 for securing
the baby seat 13 on the support assembly 12 and is further
described hereinafter.
Referring to FIGS. 2 and 6, the rear leg assembly 15 includes a
generally U-shaped bar 36 which is fixed to the top of the cross
bar to define a generally centrally located tab receiving slot of
rectangular shape with the cross bar for purposes as described
hereinafter.
Referring to FIGS. 1, 2, 3 and 5, the baby seat 13 includes a
tubular metal frame 37 formed by a U-shaped horizontal tube 38 and
a bent tube 39 fixedly secured, as by rivets 40, to the tube 38.
The bent tube 39 is bent into a shape which provides a pair of
spaced vertical upstanding arms 41 and a horizontal connecting
piece 42 flush with and adjacent the horizontal tube 38. A cap 43,
for example, of plastic material is fitted onto each end of the
tube 39 below the plane of the horizontal tube 38 to support the
baby seat 13 on a flat surface. The baby seat 13 also includes a
chair 44 which is shaped in a manner to receive a baby or small
child in a usual sitting position. The chair 33 is of a suitable
plastic material and is pivotally secured as by studs 45 to
intermediate points of the arms 41 of the tubular frame 37 so as to
pivot substantially within the confines of the arms 41 (see FIG. 5)
with the center of gravity of an occupant located below the plane
of the pivot points.
Referring to FIGS. 2, 3 and 5, in order to fix the chair 44 in
position within the tubular frame 39, a pair of apertured brackets
46 each of which contains a number of slots 47, for example, four,
are fixed to the rear surface of the chair 44 and cooperate with a
U-shaped bar 48 pivotally mounted on the arms 41 and passing
through the bracket 46. Each bracket 46 has minute studs (not
shown) formed on the sidewalls of the slots 47 which are spaced
apart so as to retain the bar 48 in a slot after the bar 48 is
snapped past the studs. The bar 48 is urged by a pair of torsion
springs 48' connected to the arms 41 and bar 48 towards the chair
44 and is manually pivoted into any of the slots 47 of the bracket
46 so as to fix the chair 44 relative to the tubular frame 37.
Since the bracket 46 forms a closed aperture, the bar 48 cannot
fall away from the chair 44 and thus provides an automatic stop for
preventing the chair 44 from continued rearward pivoting relative
to the tubular frame 37. In a similar manner continued forward
pivoting is prevented past the lowermost slot 47 in the bracket
46.
Referring to FIGS. 2 and 5, where the baby seat 13 is mounted
independently of the support frame 12, for example, on a flat
surface (not shown), an extension bar 49 is provided to extend the
base of the baby seat 13. This extension bar 49 which is of metal
is pivotally mounted on the horizontal tube 38 of the tubular frame
37 to the rear of the seat 13 and includes an end which is angled
upwardly at a slight angle (FIG. 5). In order to maintain the
extension bar 49 in either an extended horizontal position or a
retracted vertical storage position against the inclined lower
edges of the brackets 46 and the bar 48, a pair of retaining
members 50 are mounted on the ends of the horizontal tube 38. Each
retaining member 50 is provided with a bore (not shown) to fit
snugly over the end of the horizontal tube 38, an outwardly
directed inclined slot 51 of semicircular cross section to receive
and maintain the extension bar 49 when in extended position, and an
inwardly directed sloped shoulder 52 for abutting and maintaining
the extension bar 49 against the brackets 46 and bar 48 when in
retracted position. The retaining members 50 are, for example, of a
resilient material such as plastic which permits the extension bar
49 to ride over the shoulder 52 and out of the semicircular slot 51
under a manually exerted force while exerting sufficient force to
maintain the extension bar 49 in either position under forces of
lesser magnitude. Alternatively, the retaining members 50 can be of
nonresilient material so that the extension bar 49 is caused to
flex in passing over the slots 51 and shoulders 52. The retaining
members 50 also permit the extension bar 49 to be pivoted into a
depending position from the horizontal bar 38.
Referring to FIG. 2, the connecting piece 42 of the bent tube 39
has a U-shaped bar 53 secured at a central location to act as a tab
which is received within the confines of the bar 36 fixed to the
support frame 12.
Referring to FIGS. 1, 5 and 9, the horizontal tube 38 of the seat
13 is provided with a centrally located catch 54 of the friction
lock 35 which cooperates with the stud 33 on the support frame 12.
The catch 54 is fixedly secured as by studs 55 passing
diametrically through the horizontal tube 38 in dependent fashion
and includes an inwardly directed recess 56 which is positioned to
envelop the head 34 of the stud 33 in a friction fit engagement. In
addition, the catch 54 includes an outwardly directed channel
shaped gripping portion 57 which can be manually gripped during
removal of the catch 54 from friction fit engagement with the stud
33.
Referring to FIGS. 1, 3, 4 and 8, a tray 58 is mounted on the arms
41 of the seat 13 to provide a support surface for food, toys, etc.
for the occupant of the chair 44. The tray 58 which is made, for
example, of plastic material has a pair of gripping locks 59 at
opposite ends which releaseably secure the tray 58 to the arms
41.
Referring to FIG. 8, each gripping lock 59 cooperates with a
projecting head 60 of a pin 61 fixedly secured in the arm 41 to
lock the tray 58 in place. Also, each gripping lock 59 is fixed to
the bottom of the tray 58, as by rivets (not shown) and includes a
catch 62 pivotally mounted on a fixed pin 63 and biased by a spring
(not shown) on the pin 63 inwardly towards the arm 41. The catch 62
is shaped with a curved lower flange 64 having a digitated edge
defining a plurality of semicircular recesses for engaging the head
60 of the pin 61. Also, the catch 62 has an outwardly directed
curved flange 65 which provides a manual gripping surface to rotate
the catch 62 against the spring force out of engagement with the
pin 61.
Referring to FIG. 2, the gripping locks 59 of the tray 58 are
spaced apart a distance so as to engage the arms 41 in a tight
fitting relation while an intermediate cross bar 16' of the rear
leg frame 15 is spaced from the common cross bar 16 a similar
distance to enable the tray 58 to be mounted in a stored position
on the leg frame 15 when not in use.
Referring to FIGS. 1 and 2, in order to use the baby seat as, for
example, a high chair, the collapsible support frame is opened into
the crosslegged configuration and the baby seat mounted thereon. In
mounting the baby seat, the tubular frame 37 is first tiled at a
slight angle while the bar 53 forming the tab at the rear of the
baby seat 13 is inserted into the confines of the bar 36 mounted on
the support frame 12. With the bar 53 within the confines of the
bar 36 the frame 37 is pivoted downwardly so that the catch 54 is
pressed down over the stud head 34. The engagement of the stud head
34 within the recess 36 is sufficient to retain the baby seat 13 on
the support frame 12. The baby seat 13 is thereby secured by the
abutment of the bars 36, 53 at the rear and the friction lock 35 at
the front. The bar 48 is then manually held while the chair 44 is
pivoted into a desired position and the bar 48 is then inserted
into one of the slots 47 to retain the chair 44 in this
position.
After the baby seat 13 has been secured to the support frame 12,
the foot rest assembly 21 is removed away from the support frame
into a foot rest position below the chair 44. This is accomplished
by manually gripping the stop bar 27 and rotating the stop bar in
an upward direction until the stop bar abuts the leg frame 14.
During this time the U-shaped bar 22 pivots about the tabs 24 to
move the tread 29 outwardly of the support frame 12. Depending upon
the size of the occupant of the chair 44, the tread is moved from
one position to another by flexing of the ears 30 to insert the
buttons 31 into the appropriate holes 32 in the bar 22.
After an occupant has been placed in the chair 44, the tray 58 can
then be mounted in place across the arms 41 of the seat 13. In
order to do this the gripping locks 59 at the ends of the tray are
manually grasped about flanges 65 and the catches 62 are pivoted
outwardly so as to permit removal of the tray 58 from the stored
position on the leg frame 14. The tray 58 is then transported to a
position above the arms 41. The catches 62 are again pivoted
outwardly and placed down over the arms 41 so that digitated edges
of the flanges 64 are positioned for abutment with the heads 60 of
the pins 61 in the respective arms 41. The catches 62 are then
released so as to pivot under the spring biasing force into locking
relationship with the pin heads 60. It is noted that the placement
of the tray on the arms may be accomplished by initially placing
one gripping lock 59 in position with the pin head 60 on one arm 41
while the other gripping lock is thereafter locked in place by
pivoting the tray 58 about the first gripping lock 59. In a similar
manner the tray can be removed by releasing one gripping lock 59
and pivoting the tray about the other gripping lock 59.
Should the chair 44 be tiled into a reclined position while
supported on the frame 12, the extension bar 49 is pivoted past the
restraining members 50 into a depending vertical position instead
of being locked into the horizontal position.
Referring to FIG. 5, in order to use the baby seat 13 independently
of the support frame 12, the baby seat 13 is simply mounted on a
flat surface (not shown) with the extension bar 49 in a vertical
position. In this position, the baby seat 13 is supported by the
lock 35, the caps 43 and retaining members 50 and the extension bar
49 is retained by the shoulders 52 of the retaining members 50
against the lower inclined ends of the brackets 46 and 48. This
positioning of the bar 49 corresponds with a substantially upright
position of the chair 44 with the bar 48 retained in the lowermost
slot 47 of the bracket 46. In order to pivot the chair 44 into a
reclined position, that is, with the bar 48 retained in the
uppermost slot 47 of each bracket 46 as shown in phantom in FIG. 5,
the bar 48 is manually moved past the studs in the slots 47 and
pivoted downwardly away from the chair 44. The extension bar 49
thus moves along the inclined bottom edges of the brackets 46 to
drop to an approximate 45.degree. angle to indicate that the bar 49
should be snapped into locking engagement with the respective slots
51 of the retaining members 50 so that the effective base of the
baby seat can be extended. The extension bar 49 is then snapped
into the slots 51. This increase in the base of the baby seat
guards against possible rearward tipping of the seat 13.
It is noted that where the baby seat 13 is used independently of
the support frame 12 that the baby seat 13 can be restrained
against movement by insertion of the extension bar 49 into a
restraining means. For example, where the baby seat 13 is used as a
car seat the extension bar 49 can be pivoted into the extended
position and slid between the back rest and seat of a car. In this
case, the back rest and seat of the car form a gripping means to
hold the baby seat in place. It is noted that the upwardly inclined
end of the extension bar 49 further facilitates the securement of
the baby seat 13 in place since the inclined end serves as an
abutment against and within the back rest of the car.
It is noted that the extension bar can be easily removed from the
car seat by a slight tilting and manual lifting of the baby seat
13.
Referring to FIG. 7, when the collapsible frame 12 is not in use,
the frame 12 can be collapsed into a flattened configuration along
with the foot rest assembly 21 and tray 58. This is accomplished by
simply holding the leg frames 14 and 15 towards each other about
the common cross bar 16. Also, the articulated linkage 25 of the
foot rest assembly 21 is manually articulated to rotate the stop
bar 27 downwardly against the support frame. This brings the tread
29 and bar 22 into a substantially parallel alignment with the leg
frame 14 as shown. The tray 58 is mounted on the respective cross
bars 16, 16' in a manner as described above so as to lie in a
parallel plane to the leg frame 14.
Referring to FIGS. 11 and 15, wherein like parts are indicated by
like reference numerals as above, the baby seat 213 is constructed
of a tubular metal frame 37 as above having tubes 38, 39 and the
support frame 212 is constructed as above with a pair of leg
assemblies 14, 15. The rear leg assembly 15 includes a bar 236
which is fixed to the upper cross bar and shaped to define a
generally centrally located elongated recess of rectangular cross
section for receiving the horizontal connecting piece 42 of the
bent tube 39. The bar 236 extends across the frame 212 a distance
substantially equal to the spacing between the tubes 38 so as to
abut the tubes 38 and prevent side sway of the baby seat 213 when
mounted on the support frame 212.
In addition, instead of using exposed torsion springs to bias the
U-shaped bar 48 against the back of the chair 44, a tension spring
348' is coiled about each end of the bar 48 and fixed to the bent
tube 39 in known manner so as to bias the bar towards the chair 44.
Further, as shown a pair of minute studs 259 are disposed near the
rear of each slot 47 in the brackets 46 to fix the bar 48 in place.
These studs 259 are sized to permit passage of the bar 48 into or
out of the slots 47 under a manually applied force.
Referring to FIG. 11, the extension bar 49 can also be mounted on
the tube 38 of the seat 213 so as to be pivoted into a storage
position under the seat 213. In this instance, a pair of friction
catches 260 are mounted, one on each side of the tube 38, at points
t receive the crosspiece of the extension bar 49 in a snap-fit
locking engagement. Each friction catch 260 is of a resilient
material such as Nylon and is shaped with an outwardly inclined leg
so as to lock the extension bar 49 between this leg and the tube
38.
Referring to FIGS. 11 and 12, in order to permit movement of the
extension bar 49 from a retracted storage position to an extended
position, modified retaining members 250 are mounted on the ends of
the horizontal tube 38. Each retaining member 250 is provided with
a core 251 which fits snugly into the open end of the tube 38, an
outwardly directed inclined slot 252 of semicircular cross section
which is sized to receive and maintain the extension bar 48 when in
extended position, and an upper shoulder 253 to prevent the
extension bar 49 from moving above the inclined slot 252. The
retaining members 250 are, for example, of a resilient material
such as plastic which permits the extension bar 49 to ride up and
into the inclined slots 252 under a manually exerted force while
exerting sufficient force to maintain the extension bar 49 in the
inclined slots 252. Alternatively, the retaining members 250 can be
of nonresilient material so that the extension bar 49 is caused to
flex in passing into the slots 252. The retaining members 250 also
permit the extension bar 49 to be pivoted into a storage position
up under the horizontal bar 38.
Referring to FIGS. 11, 13 and 14, the friction lock 235 is provided
with a modified catch 254 which cooperates with the stud 33 on the
leg assembly 14 of the support frame 212. The catch 254 is fixedly
secured as by studs 55 which pass through the tube 38 and includes
a recess 56 which is positioned to envelop the head 34 of the stud
33 in a friction fit engagement. In addition, the catch 254
includes a channel shaped gripping portion 257 which can be
manually gripped during removal of the seat 213 from the support
frame 212. The gripping portion 257 is formed with a pair of end
flanges 258 and a front panel 259 which extends between the end
flanges 258 and is of a generally L-shape. The panel 259 is
substantially flush with the bottom of the flanges 258 but is
spaced from the rear wall 260 of the catch 254 for molding purposes
when made of a resilient plastic material.
Referring to FIG. 11, in order to mount the seat 213 on the support
frame 212, the tubular frame 37 is first tilted at a slight angle
while the horizontal connecting piece 42 at the rear of the baby
seat 213 is inserted into the confines of the bar 236 mounted on
the support frame 212. With the connecting piece 42 within the
confines of the bar 236, the frame 37 is pivoted downwardly so that
the catch 254 is pressed down over the stud head 34. The engagement
of the stud head 34 within the recess 56 is sufficient to retain
the baby seat 213 on the support frame 212. The baby seat 213 is
thus secured by the abutment of the horizontal connecting piece 42
with the bar 236 at the rear and the friction lock 235 at the
front. The seat 213 can then be utilized as above.
Referring to FIG. 16, the baby seat 213 can be provided with a
strap assembly 240 which functions as a shoulder harness for
restraining the occupant of the chair 44. As shown, the strap
assembly 240 includes a pair of wirelike clips 241 of generally
U-shaped profile and endless loop construction which are adapted to
fit over the top of the chair 44. In addition, a strap 242 is
looped through each clip 241 and is provided with an adjusting
buckle 243 so that the opening afforded by the strap 242 can be
adjusted. To this end, a central loop of the strap 242 is pulled
through the buckle 243 to receive a suitable seat belt which
envelops the waist of the seat occupant. The buckle 243 also
permits adjustment of the shoulder harness.
The invention thus provides a portable baby chair which is easily
managed and transported while also providing a baby chair which is
easily and rapidly assemblied when put into use or collapsed when
being transported or stored. Since the seat is readily detachable
from the support frame and since the support frame together with
the tray and foot rest are collapsible into a generally flattened
configuration, the baby chair can be easily transported, as by
automobile and used as a car seat, and stored in a limited space.
Furthermore, since the seat is readily detachable from the support
frame, the seat can be used independently of the support frame.
The baby chair which can be constructed of various suitable
materials such as wood has a support frame which is of relatively
light weight which can be easily managed and assembled. The
positions for attaching the tray are readily accessible for
complete assembling of the baby chair as a feeding table and are
conveniently attached when not in use for ease in transporting and
storing.
Further, in the case where the baby chair is made of tubular metal
such as aluminum or steel and plastic components, the weight and
bulk of the assembly is substantially at a minimum to permit ease
of handling. It is noted that the support frame of the invention is
capable of being conveniently stored or shipped in a compact manner
since the frame is collapsible into a flattened configuration.
Furthermore, since the foot rest assembly can be permanently
secured to the support frame and articulated for reliable movement
and positioning as illustrated in FIG. 1, the foot rest assembly
provides a convenient structure which is easily manipulated. Also,
since the tread of the foot rest assembly is mountable in a number
of positions, the baby seat and support frame assembly can be
utilized for differently sized children.
It is further noted that the baby seat of the invention can be used
with or without the support frame. In this way, the baby seat
becomes a versatile unit which can be used as a high chair, a car
seat, a transportable baby seat, or feeding unit. Also, since the
chair of the baby seat is pivotal within the confines of the arms
of the seat frame and since the effective base of the seat can be
extended through use of the extension bar, the baby seat is
extremely stable against tipping forces such that infants can be
placed within the seat and given a minimum of attention.
It is further noted that the chair of the baby seat can be provided
with a suitable seat pad made, for example, of a foam core and a
plastic or fabric cover. The seat pad can be contoured to the shape
of the chair so as to comfortably support a baby thereon. Also, as
a matter of convenience, the chair can be provided with slots at
the top rear and bottom front to facilitate manual grasping of the
baby seat when it is desired to transport the baby seat from one
position to another.
It is further noted that the baby seat and support frame can be
easily transported when secured together simply by grasping the
arms or above-mentioned slots and moving the assembly from place to
place. During such movement, the friction lock at the front of the
baby seat and the interengagement of the bars at the rear of the
baby seat of one embodiment or the recess type lock of the other
embodiment provide a substantially secure locking relationship of
the baby seat on the support frame. Further, the locking
arrangement also prevents the baby seat from pivoting about a
vertical axis with respect to the support frame, such that the
assembly remains stable in use.
* * * * *