[0001] This invention relates to baby walkers as well as to a variety of other baby furniture
and toys such as activity stations in which a baby is seated. For example, the invention
may be embodied in high chairs, booster seats and other such products especially designed
for small children. In the present application, the invention is described in detail
as it is applied to a baby walker but its other uses are intended to fall within the
scope of the invention.
[0002] Baby walkers, baby activity centers and the many other types of baby furniture to
which this invention applies, include a seat and play/snack tray, and in accordance
with the present invention, one or more movable activity trays are selectively available
in place of the conventional tray normally incorporated into such furniture so as
to create an additional activity center for the baby seated in it.
[0003] It is the object underlying the present invention to provide an improved baby walker
or baby station.
[0004] The present invention is specified in the claims.
[0005] An advantage of the present invention is to provide an expanded activity surface
for babies either in fixed or movable furniture such as stationary walkers, movable
walkers, high chairs, booster seats, etc. Another advantage of this invention is to
provide an activity tray that may be conveniently removed from the furniture in which
it is incorporated so that the tray may be cleaned and remounted on the furniture.
[0006] Yet another advantage of the present invention is to provide a movable activity tray
that is firmly held in any selected position and will not swing freely, a condition
that would be hazardous to the baby as its hands, fingers or other body parts could
be pinched or banged by the tray.
[0007] To accomplish these and other objects, preferably a pair of pivotally mounted trays
are superimposed upon the regular tray of the furniture and may be moved from one
extreme position in which the activity trays are essentially out of the way of the
child and fully expose the conventional tray, and a fully active position in which
the activity trays cover the conventional tray. In accordance with the preferred embodiment
of the present invention, the activity trays carry a number of different playthings
for the baby such as play rings, simulated telephone, noise makers, music and light
toys, simulated flowers and animals, etc. When the trays are in their active position,
all of the toys on them are readily accessible to the baby. When the trays are swung
to their inactive position, they are removed from in front of the child and expose
the main tray that may be used for feeding, playing or other activity. The activity
trays in the embodiments shown are detachably mounted on the main tray of the furniture
and are keyed to it so that they can only be removed by a precise manipulation of
the trays and a release of the latches disposed preferably out of the reach of the
child in the seat such as beneath the regular tray. Therefore, while the activity
trays can easily be removed, a very young child cannot perform the necessary manipulations
to do so. The latches also will lock the activity trays so that they cannot swing
freely unless the latches are released, and they are located in a position that cannot
be easily reached by a child seated in the furniture.
[0008] In the preferred embodiment the two movable activity trays, when in their active
positions, together conform generally to the shape of the main tray below so as to
essentially cover it. When swung to their inactive position the main tray is available
for feeding or for other play activities.
[0009] Preferred embodiments of the present invention are exemplified in the present figures.
FIG. 1 is a perspective view of a baby walker embodying the activity trays of the
present invention and with the trays in their active position;
FIG. 2 is a view similar to FIG. 1 but with the trays moved to or toward their inactive
position to expose the main tray;
FIG. 3 is an exploded perspective view of the walker;
FIG. 3A is a bottom plan view of the base;
FIG. 4 is a top plan view of the main tray assembly with the activity trays removed;
FIG. 5 is a bottom perspective view of one of the activity trays;
FIG. 6 is a fragmentary perspective view of one of the tray latches normally attached
to the bottom of the main tray and the rail guide carried on the bottom of the activity
tray showing how they interengage; and
FIG. 7 is a fragmentary perspective view of the bottom of the main tray assembly and
showing one latch assembly for an activity tray mounted in place on it;
FIG. 8 is a cross sectional view of the latch for locking one of the activity trays;
FIGS. 9 and 9A are top and bottom views, respectively of the main tray assembly and
showing one activity tray mounted on it and in the inactive position; and
FIG. 10 is a fragmentary bottom plan view of the main tray assembly with one of the
activity trays mounted on it and in the inactive position.
[0010] In FIGS. 1 and 2 a baby's walker embodying the present invention is shown having
a base 10, an upper frame member 12 (sometimes called the main tray assembly) supported
on the base by a pair of intermediate frame members 14, and activity trays 13 that
are pivotally and removably attached to the upper frame member 12. The base 10 is
generally rectangular in shape (see FIGS. 3 and 3A) and includes a pair of fixed wheels
16 on its rear side 18 and a pair of pivotal casters 20 at its front corners 22. The
base also includes on its lower surface, a number of friction pads 24 designed to
engage the floor and prevent the base from moving when a wheel or caster rolls off
the edge of the floor at stairs or other surface edges. Such devices are well known
in the art.
[0011] The intermediate frame 14 includes two inverted U-shaped tubular metal members 30
and 32. Tubular member 30 is connected at its lower ends 36 at fixed pivots 33 to
the rear portion of the base 10 adjacent the rear corners 38 while the lower ends
34 of the other U-shaped member 32 are slidably connected to the base 10 adjacent
the front side 37 thereof. The top end 40 of the U-shaped member 32 is pivotally connected
to the rear side 39 of the upper frame 12 by a fixed pivot 41. The upper end 42 of
the frame U-shaped member 30 is slidably coupled to the underside of the top frame
12 and may be retained in any one of a number of positions by a sliding latch mechanism.
This arrangement enables the height of the top frame to be adjusted to suit the child's
size and also allows the top frame 12 to be collapsed onto the base for travel or
storage of the walker as is well known in the art.
[0012] Upper frame 12 has an opening 50 at the rear portion thereof and a tray 52 disposed
in front of the opening. The tray 52 is defined by a shallow recess in the molded
upper frame member 12 and is conventionally used for play or feeding. A sling-type
scat 54 fits into the opening 50 and is removably attached in place by snap fasteners
or other well known expedients so that it may be removed for washing and cleaning
all as is well known in the art.
[0013] In the embodiment of the invention illustrated, a pair of double keyhole shaped openings
60 are provided in the upper frame member 12 rearwardly of the outside ends 62 of
the tray 52. (see FIG. 4) The keyhole shaped openings 60 provide means by which the
activity trays 13 are attached to the upper frame member 12. A pair of guide slots
66 are also provided, one on each side of the main tray 52 to receive a guide 96 (see
FIGS. 5 and 6) on the bottom of each activity tray, as is further explained below.
Extending upwardly from beneath the main tray assembly 12 and registering with each
slot 66 is a latch 68 that selectively engages one of a series of slots in the guide
96 on the bottom of each of the activity trays 13 so as to releasably hold the activity
trays in any one of a number of selected positions. The manner in which the activity
trays 13 are mounted on the main tray assembly 12 and held in place by the latches
68 in the embodiment illustrated is described in greater detail below. The description
is confined to one activity tray 13 and the means by which it is mounted, but it is
to be understood that the description applies equally to each of the two activity
trays.
[0014] The activity tray 13 includes a generally horizontal top wall 82 and a downwardly
extending peripheral flange 83. The upper surface 84 of the top wall 82 may carry
a number of different activity toys such as beads, rattles, simulated telephone etc.
some of which are shown in FIGS. 1 and 2, and the toys may either be molded as an
integral part of the tray 13 or be attached to the upper surface 84 of the top wall
82 by any conventional means. The lower surface 86 of the horizontal wall 82 of the
activity tray 13 at one corner 88 (see FIG. 5) carries a wing lock 70 that has a pair
of wings 90 that are angularly disposed to one another in the same relationship as
the keyhole slots 64 in the opening 60 in the upper frame 12. The tray 13 shown in
FIG. 5 is the tray 13b in FIGS. 1 and 2, and the other tray 13a is the mirror image
thereof. The slots 64 and wings 90 are at other than 180° apart so that they may register
with one another in but one position for installation and removal. A seat 91 may be
integrally molded with the bottom side of wall 82 of the activity tray 13 and include
an internally threaded recess (not shown) for receiving a screw 92 that holds the
wing lock 70 firmly in place.
[0015] The bottom surface 86 of the top wall 82 also has a plurality of posts 94 for attaching
the guide 96 that rides in one of the slots 66 in the periphery of the main tray 52.
In addition a number of flanges 95 are molded in the bottom side 86 of the top wall
82 for precisely orienting the guide 96. The guide 96 as shown in FIGS. 5-10 has a
plurality of teeth 98 along its lower edge 100 that extend beyond the sides of the
guide. The spaces 102 between each adjacent pair of teeth 98 are sized to receive
the vertical blade 103 of the latch 68 so as to firmly hold the activity tray 13 in
any one of a number of selected positions while the wing lock 70 is retained in the
double key lock opening 60. It will be appreciated that the wing lock 70 and double
keyhole slots 60 establish a fixed pivot for the activity tray 13, and when the latch
68 is withdrawn beyond the bottom of the teeth 98, the activity tray may pivot between
the extreme positions suggested in FIG. 1 and the left activity tray 13a in FIG. 2.
[0016] The latch 68 includes a housing 110 secured to the bottom of the main tray assembly
12 by means of slotted ears 104 formed as an integral part of the housing 110 and
fasteners such as screws, rivets, clips, etc. as shown in FIG. 7. The housing defines
a guide for the blade 103 that has a handle 114 at its lower end. The head 107 of
the housing extends upwardly through an opening 66a in the bottom of the guide slot
66 so that the head 107 is exposed and in position to receive the teeth 98 of guide
96. The blade 103 is biased by means of a spring 106 (see FIG. 8) to a raised position
wherein the blade engages one of the spaces 102 between adjacent teeth 98 in the guide
96. By pulling down on the handle 114 the blade 103 may be withdrawn from the space
102 between the teeth, and the guide 96 is then free to move through the head 107
in slot 66. It will be noted in FIG. 6 that the teeth 98 are captured in the undercut
sides 108 of the slot 109 in the head 107 of latch housing 110 so that the activity
tray 13 cannot be lifted off the main tray assembly 12 when the guide 96 is positioned
in the slot 66 and disposed within the slot 109 of the housing. The edge of the activity
tray is also captured in slots 111 and 113 in the center of the front and back walls
of the main tray 52. As noted in FIG. 5 the activity tray 13 has two outwardly extending
flanges 120 and 122, flange 120 being located on the curved side 124 of the activity
tray adjacent corner 126 and flange 122 located at the corner 128. The flanges 120
and 122 extend into the slots 111 and 113, respectively and retain the activity tray
in the intended plane closely adjacent the top of the main tray when the activity
tray is in the active position.
[0017] Thus the slots 111 and 113 and flanges 120 and 122 also prevent a child from forcing
its fingers under the activity tray and above the main tray and being pinched between
them. A stop 118 mounted on the end 116 of the guide 96 prevents the activity tray
from being pivoted outwardly beyond its extreme outward position shown in FIG. 2 by
preventing the guide from detaching from the slot 109 in that direction. The several
spaces 102 between the teeth 98 on the guide 96 also enable the tray to be locked
in several intermediate positions.
[0018] To mount an activity tray in position, the wing lock 70 and its wings 90 are aligned
with the keyhole opening 60 and its slots 64. This alignment is achieved with the
activity tray positioned outwardly in a position somewhat further displaced in a clockwise
direction than is the tray 13a in FIG. 2. After the wing lock is inserted through
the keyhole opening, the tray is turned in a counterclockwise direction as viewed
in FIG. 2 without registering the guide 96 with the slot 66 in the edge of the main
tray nor with the slot 109 in the latch 68. To do this, the tray is slightly distorted
so that the guide 96 travels over the edge of the main tray and head 107 of latch
68 to a position beyond the normal active position shown in FIG. 1. The other activity
tray must either be swung outwardly away from the active position or detached from
the main tray assembly. The tray 13a must travel in a counter clockwise direction
a sufficient distance so that the end 130 of the guide 96 is disposed inwardly of
the slot 66 in the main tray and slot 109 of the latch, and care must be taken to
prevent the flanges 120 and 122 from engaging the corresponding slots 111 and 113
in the main tray. From that extreme position, the tray is swung in a clockwise direction
and care must be taken to insure that the end 130 of the guide 96 enters the guide
slot 109 in the latch 68. To do so, the latch handle 114 must be pulled down away
from the main tray so as to remove the blade 103 from the guide slot 109. In this
manner, the guide 96 is placed in registration with the guide slot and the tray may
be moved outwardly to the extreme position shown for activity tray 13a in FIG. 2.
When the tray is to be moved to the active position shown in FIG. 1, it is only necessary
to pull down on the latch handle and pivot the tray in a counter clockwise direction.
As the tray moves toward the active position shown in FIG. 1, the tabs 120 and 122
will register with the slots 111 and 113, and further counter clockwise motion of
the activity tray will be prevented by means of the stop 140 on the front end of the
main tray.
[0019] To remove the activity tray from the main tray assembly, the procedure described
above for installing the activity tray is reversed. That is, the tray is pivoted from
its operative position shown in FIG. 1, a short distance clockwise so as to free the
tabs 120 and 122 from their respective slots 111 and 113 in the main tray. Thereafter,
the activity tray is somewhat distorted by lifting up at the corner 128 and the tray
is again turned in a counter clockwise direction. With the comer 128 lifted, the tabs
120 and 122 will not enter their respective slots 111 and 113 and the tray must be
pivoted fully counter clockwise until the end 130 of the guide 96 is freed from the
guide slot 109 of the latch. Thereafter, the activity tray is turned clockwise with
the guide 96 out of slot 109 until the wings 90 of the wing lock 70 are aligned with
the slots 64 in the keyhole 60. When alignment is achieved, the tray may simply be
lifted off the main tray assembly.
[0020] It should be appreciated that to install or remove either of the activity trays 13,
the other activity tray, if already attached to the main tray assembly should be swung
to its outward or inactive position a sufficient distance so as not to interfere with
the swinging motion required of the activity tray being removed or attached to the
main tray assembly.
[0021] In the foregoing description, a detailed disclosure has been made of the preferred
embodiment of this invention and particularly of the activity trays and mechanism
employed to attach and lock the activity trays in position. While the preferred system
is illustrated and described it should be appreciated that other mechanisms may be
used. What is essential is that the system used to support and lock the activity tray
in position not create a relationship between the activity tray and the main tray
that would enable a child to catch its fingers or other extremities so as to pinch
or otherwise injure the child. Preferably, the latch or other locking device used
should not be within the reach of the child sitting in the seat that would enable
child to release the tray him or herself. While in the preferred embodiment, the invention
includes a pair of activity trays, it is within the scope of the present invention
to have but a single tray or even more than two trays that carry the activity toys.
It is even contemplated that in its broadest sense, the activity tray or trays may
be removed when not in use, although such an arrangement is considerably less convenient
than the preferred embodiment of this invention. Furthermore, while in the preferred
embodiment, the trays are pivotally supported for a swinging motion essentially in
a horizontal plane, the activity trays may be differently mounted so that they fold
or pivot downwardly over or off the main tray assembly edges so as to expose the main
tray.
[0022] In light of the many variations that will occur to those skilled in the art, the
breadth of the present invention should not be limited to the single preferred embodiment
illustrated and described. Rather, the scope of the invention should be determined
by the appended claims and their equivalents.
1. A baby walker comprising
a base and a seat mounted above the base,
a main tray disposed in front of the seat,
and an activity tray attached to the main tray and movable between an active position
wherein it overlies the main tray for accessibility to the child and an inactive position
wherein it exposes the main tray.
2. A baby station comprising
a frame carrying a seat and main tray, said main tray being disposed in a usable position
with respect to the seat, and
an activity tray supported by the frame and movably mounted so as to overlie the main
tray in an active position and so as to expose the main tray for use when the activity
tray is in an inactive position.
3. A baby station as described in claim 2 wherein the activity tray has two sections
that are movable toward and away from one another to the active position and inactive
position respectively.
4. A baby station as described in claim 2 or 3 wherein the frame includes a base with
rollers.
5. A baby station as described in any one of claims 2 to 4 wherein the frame is collapsible
for storage or travel.
6. A baby station as described in any one of claims 3 to 5 wherein each of the activity
tray sections is pivotally mounted on the main tray.
7. A baby station as described in claim 6 wherein each tray section pivots independently
of the other.
8. A baby station as described in any one of claims 3 to 7 wherein each activity tray
section pivots in a substantially horizontal plane.
9. A baby station as described in any of claims 2 to 8 wherein the activity tray carries
at least one toy.
10. A baby station as described in any one of claims 6 to 9 wherein latches are operatively
connected to the activity tray sections for locking each of them in a plurality of
selected positions.
11. A baby station as described in any one of claims 2 to 10 wherein a guide and guide
slot are operatively connected to the activity tray and main tray for controlling
the movement of the activity tray with respect to the main tray.
12. A baby station as described in any one of claims 2 to 11 wherein the activity tray
has two sections each independently mounted on the main tray.
13. A baby station as described in claim 12 wherein guides and guide slots are operatively
connected to each of the activity tray sections and main tray for controlling the
movement of the activity tray sections with respect to the main tray.
14. A baby station as described in claim 11 wherein the guide is connected to the bottom
of the activity tray and the guide slot is connected to the main tray.
15. A baby station as described in claim 13 wherein each tray section is pivotally mounted
with respect to the main tray for movement toward and away from one another about
vertical axes.
16. A baby station as described in claim 15 wherein the guides are connected to the tray
sections and the slots are connected to the main tray.
17. A baby station as described in any one of claims 2 to 16 wherein the tray sections
together are of generally the same shape and size as the main tray.