Information
-
Patent Grant
-
6513869
-
Patent Number
6,513,869
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Date Filed
Thursday, January 10, 200223 years ago
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Date Issued
Tuesday, February 4, 200321 years ago
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Inventors
-
-
Examiners
Agents
-
CPC
-
US Classifications
Field of Search
US
- 297 2581
- 297 2715
- 297 5
- 297 131
- 297 130
- 297 2716
- 280 43
- 280 4311
- 280 887051
- 280 4324
- 280 4314
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International Classifications
-
Abstract
A combined baby walker/rocking chair comprises a chassis, a support, an upper frame, and a seat. The chassis and the upper frame are connected via the support. Two parallel transverse beams are mounted to a lower end of the support. Plural casters are mounted to an underside of the chassis. The chassis comprises two symmetric arcuate frames and two control devices that are constructed to allow a baby walker to be converted into a rocking chair, and vice versa, while providing a stable structure.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a combined baby walker/rocking chair. In particular, the present invention relates to a baby walker that can be converted into a rocking chair, and vice versa, while providing a stable structure.
2. Description of the Related Art
FIG. 9
of the drawings illustrates a conventional baby walker that may help a baby to learn how to walk. The baby walker comprises a chassis
1
′, a cross-hinged support
2
′, an upper frame
3
′, and a seat
4
′. The chassis
1
′ is substantially an annular or rectangular member having plural casters
11
′ attached to an underside thereof for allowing movement of the baby walker. The cross-hinged support
2
′ provides a connection between the chassis
1
′ and the upper frame
3
′. The upper frame
3
′ is substantially annular and the seat
4
′ is located in a central portion of the upper frame
3
′. Thus, a baby may sit comfortably in the seat
4
′ without the risk of falling to the ground. The baby walker is limited in use and function.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a baby walker that can be converted into a rocking chair, and vice versa, while providing a stable structure.
A combined baby walker/rocking chair in accordance with the present invention comprises:
a chassis, a support, an upper frame, and a seat, the chassis and the upper frame being connected via the support, two parallel transverse beams being mounted to a lower end of the support, plural casters being mounted to an underside of the chassis, the improvements comprising:
the chassis comprising two symmetric arcuate frames and two control means, each said arcuate frame comprising a first notch in an inner side wall thereof through which an associated one of the transverse beams extends, each said arcuate frame further comprising a peg and a second notch in an outer side thereof;
each said control means comprising a positioning block, a control block, and a spring, each said positioning block being pivotally mounted to the chassis, each said positioning block comprising an engaging section for secure engagement with an associated one of the transverse beams, each said positioning block further comprising a positioning hole;
each said control block comprising an insertion section configured corresponding to a shape of the positioning hole of the respective positioning block such that rotation of the positioning block is prevented when the insertion section of the control block is inserted into the positioning hole, each said control block further comprising a pivot hole for pivotally receiving an associated one of the pegs, each said control block further comprising a grip portion on an outer edge thereof;
each said spring being mounted around an associated one of the pegs and attached to the chassis and an associated one of the control blocks;
wherein when the arcuate frames are located parallel to each other, the control blocks are biased by the springs such that the insertion section of each said control block is inserted into the positioning hole of the respective positioning block to thereby retain the arcuate frames in a horizontal plane, thereby constructing a baby walker; and
wherein when the control blocks are moved laterally away from the chassis, the insertion section of each said control block is disengaged from the positioning hole of the respective positioning block to thereby allow the arcuate frames to respectively pivot about the pegs until the insertion section of each said control block is re-inserted into the positioning hole of the respective positioning block, thereby constructing a rocking chair.
Each of the arcuate frames includes an engaging groove in a first end thereof and an engaging member in a second end thereof. The engaging groove of one of the arcuate frames is engaged with the engaging member of the other arcuate frame.
Each arcuate frame further comprises an engaging section that defines a first engaging groove. Each control means comprises a lid secured to an associated one of the arcuate frames, the lid comprising a second engaging groove. The first engaging groove and the second engaging groove together define a hole for pivotally receiving an associated one of the positioning blocks.
Each control block comprises a stop on an outer side thereof for limiting a maximum rocking angle of the rocking chair constructed from the combined baby walker/rocking chair.
Other objects, advantages, and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
is a perspective view of a combined baby walker/rocking chair, assembled to a baby walker, in accordance with the present invention.
FIG. 2
is an exploded perspective view of a portion of a chassis of the comined baby walker/rocking chair in accordance with the present invention.
FIG. 3
is a perspective view of the portion of a chassis of the combined baby walker/rocking chair in FIG.
2
.
FIG. 4
is a top view of the combined baby walker/rocking chair in accordance with the present invention.
FIG. 5
is a sectional side view of the combined baby walker/rocking chair in accordance with the present invention.
FIG. 6
is a sectional view of the portion of a chassis of the combined baby walker/rocking chair in FIG.
2
.
FIG. 7
is a view similar to
FIG. 6
, illustrating adjustment of the combined baby walker/rocking chair in accordance with the present invention.
FIG. 8
is a side view of the combined baby walker/rocking chair that has been bled to a rocking chair.
FIG. 9
is a perspective view of a conventional baby walker.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to
FIGS. 1 through 5
, a baby walker in accordance with the present invention generally comprises a chassis
1
, a support
2
, an upper frame
3
, and a seat
4
. The chassis
1
and the upper frame
3
are connected via the support
2
. Two parallel transverse beams
21
are mounted to a lower end of the support
2
that is preferably a cross-hinged device. Plural casters
11
are mounted to an underside of the chassis
1
.
The chassis
1
comprises two symmetric arcuate frames
12
and two control means
5
. One of the arcuate frames
12
includes an engaging groove
121
in an end thereof and an engaging member
122
in the other end thereof for respectively engaging with an engaging groove
121
and an engaging member
122
of the other arcuate frame
12
. Each arcuate frame
12
further comprises a notch
123
in an inner side wall thereof through which the respective transverse beam
21
extends. Mounted between the inner side wall and an outer side wall of each arcuate frame
12
is an engaging section
124
which faces the notch
123
. An arcuate engaging groove
125
is defined in the engaging section
124
. Also mounted between the inner side wall and the outer side wall of each arcuate frame
12
and located on a side of the engaging section
124
is a peg
126
. A further notch
127
is defined in the outer side wall of each arcuate frame
12
. An engaging hole
128
is defined in each arcuate frame
12
, which will be described later.
Each control means
5
comprises a positioning block
51
mounted to an associated engaging section
124
, a control block
52
, a spring
53
, and a lid
54
engaged with an associated engaging hole
128
. The positioning block
51
comprises an engaging section
511
having an engaging hole
512
for secure engagement with a transverse beam
21
of the support
2
, and a positioning hole
513
is in a side of the positioning block
51
that faces away from the engaging groove
512
.
The control block
52
comprises an insertion section
521
configured corresponding to a shape of the positioning hole
513
of the positioning block
51
such that rotation of the positioning block
51
is prevented when the insertion section
521
of the control block
52
is inserted into the associated positioning hole
513
. The control block
52
further comprises a pivot hole
522
in a side thereof for rotatably receiving the peg
126
. A grip portion
523
is provided on an outer edge of the control block
52
, and a stop
524
is provided on a side of the outer edge of the control block
52
to limit the maximum rocking angle of the baby walker/rocking chair.
The spring
53
is mounted around the peg
126
and comprises two ends
531
and
531
that are respectively attached to the chassis
1
and the control block
52
. The lid
54
comprises an arcuate engaging groove
541
corresponding to the positioning block
51
and is fixed to the chassis
1
via fasteners such that the engaging groove
125
of the chassis
1
and the engaging groove
541
of the lid
54
together define a hole for receiving the engaging section
511
of the positioning block
51
.
When forming a baby walker, the arcuate frames
12
are engaged with each other to form the chassis
1
. Each control block
52
is biased by a respective spring
53
such that the insertion section
521
of the control block
52
is securely engaged with the positioning hole
513
of the respective positioning block
51
. Thus, the arcuate frames
12
are positioned in a horizontal plane, thereby providing a stable chassis
1
.
When each control block
52
is moved from a position shown in
FIG. 6
to a position shown in
FIG. 7
, the insertion section
521
of the control block
52
is disengaged from the respective positioning hole
513
. Next, each arcuate frame
12
is pivoted about the respective transverse rod
21
until the control block
52
is biased by the respective spring
53
such that the insertion section
521
is re-inserted into and thus retained in the respective positioning hole
513
. Thus, a rocking chair is formed, as shown in FIG.
8
. The stops
524
limit the maximum rocking angle of the rocking chair to thereby provide improved operational safety.
According to the above description, it is appreciated that the baby walker constructed from the combined baby walker/rocking chair in accordance with the present invention provides an improved stability for the baby by means of engagement between the engaging members
122
and the engaging grooves
121
of the frames
12
of the chassis
1
. The baby walker can be converted into a rocking chair by means of operating the control blocks
52
. In addition, such conversion can be accomplished easily and quickly by means of engagement between the insertion section
521
of each control block
52
and the positioning hole
513
of the respective positioning block
51
. And the resultant rocking chair is stable.
Although the invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the invention as hereinafter claimed.
Claims
- 1. A combined baby walker/rocking chair, comprising:a chassis, a support, an upper frame, and a seat, the chassis and the upper frame being connected via the support, two parallel transverse beams being mounted to a lower end of the support, plural casters being mounted to an underside of the chassis, the improvements comprising: the chassis comprising two symmetric arcuate frames and two control means, each said arcuate frame comprising a first notch in an inner side wall thereof through which an associated one of the transverse beams extends, each said arcuate frame further comprising a peg and a second notch in an outer side thereof; each said control means comprising a positioning block, a control block, and a spring, each said positioning block being pivotally mounted to the chassis, each said positioning block comprising an engaging section for secure engagement with an associated one of the transverse beams, each said positioning block further comprising a positioning hole; each said control block comprising an insertion section configured corresponding to a shape of the positioning hole of the respective positioning block such that rotation of the positioning block is prevented when the insertion section of the control block is inserted into the positioning hole, each said control block further comprising a pivot hole for pivotally receiving an associated one of the pegs, each said control block further comprising a grip portion on an outer edge thereof; each said spring being mounted around an associated one of the pegs and attached to the chassis and an associated one of the control blocks; wherein when the arcuate frames are located parallel to each other, the control blocks are biased by the springs such that the insertion section of each said control block is inserted into the positioning hole of the respective positioning block to thereby retain the arcuate frames in a horizontal plane, thereby constructing a baby walker; and wherein when the control blocks are moved laterally away from the chassis, the insertion section of each said control block is disengaged from the positioning hole of the respective positioning block to thereby allow the arcuate frames to respectively pivot about the pegs until the insertion section of each said control block is re-inserted into the positioning hole of the respective positioning block, thereby constructing a rocking chair.
- 2. The combined baby walker/rocking chair as claimed in claim 1, wherein each of the arcuate frames includes an engaging groove in a first end thereof and an engaging member in a second end thereof, the engaging groove of one of the arcuate frames being engaged with the engaging member of the other arcuate frame.
- 3. The combined baby walker/rocking chair as claimed in claim 1, wherein each said arcuate frame further comprises an engaging section that defines a first engaging groove, each said control means comprising a lid secured to an associated one of the arcuate frames, the lid comprising a second engaging groove, the first engaging groove and the second engaging groove together defining a hole for pivotally receiving an associated one of the positioning blocks.
- 4. The combined baby walker/rocking chair as claimed in claim 1, wherein each said control block comprises a stop on an outer side thereof for limiting a maximum rocking angle of the rocking chair constructed from the combined baby walker/rocking chair.
US Referenced Citations (7)