Combined baby walker/rocking chair

Information

  • Patent Grant
  • 6513869
  • Patent Number
    6,513,869
  • Date Filed
    Thursday, January 10, 2002
    23 years ago
  • Date Issued
    Tuesday, February 4, 2003
    21 years ago
  • Inventors
  • Examiners
    • Nelson, Jr.; Milton
    Agents
    • Baxley; Charles E.
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.
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174793 Erikson Mar 1876 A
1674741 Rosman Jun 1928 A
2716439 Feist Aug 1955 A
3041081 Lott Jun 1962 A
4822030 Cone Apr 1989 A
5636853 Huang Jun 1997 A
5845963 Huang Dec 1998 A