Foldable bassinet with suspended floor hinge

Information

  • Patent Grant
  • 6588033
  • Patent Number
    6,588,033
  • Date Filed
    Tuesday, May 2, 2000
    24 years ago
  • Date Issued
    Tuesday, July 8, 2003
    21 years ago
Abstract
A foldable bassinet is disclosed. The bassinet can be transformed from an erected position wherein a floor of the bassinet is substantially horizontal to ground, and elevated therefrom by a stand, to a folded position wherein the bassinet is compacted into a relatively small size. Using a uni-directional hinge in the floor of the bassinet, and a plurality of over-center locks, the floor of the bassinet can be locked into the horizontal position easily and effectively, without any structure provided directly below the center of the bassinet floor.
Description




FIELD OF THE INVENTION




The present invention generally relates to cribs and bassinets and, more particularly, relates to portable and foldable cribs and bassinets.




BACKGROUND OF THE INVENTION




Bassinets have been used in the care of infants for centuries. Such devices typically include an oblong-shaped basket having a floor, raised walls, and an open top. A mattress and/or other suitable cushioning are typically provided within the basket for enhancing the comfort of the child. The basket is often provided on some form of stand to elevate the level of the basket for ease of use.




As families have become increasingly mobile, it has become increasingly desirable to provide a portable bassinet to accommodate this mobility. However, given the shape of the oblong basket, height of the supporting stand, and structural integrity and weight limitations required of such devices, bassinets do not easily lend themselves to transformation into dimensionally small and light weight units for ease of transportation and/or storage.




A number of foldable playpens and cribs have been created. However, to the extent such structures include a foldable floor, they typically rely on support afforded by the ground on which they rest to maintain a horizontal floor position. If elevated, the ground would provide no support, and the floor would tend to invert given a sufficiently heavy load. Alternatively, centralized support structure must be provided below the foldable floor. Such structure necessarily imposes undesirable size and weight penalties on the device.




SUMMARY OF THE INVENTION




In accordance with one aspect of the invention, a bassinet is provided which comprises a frame, a floor, and a flexible sidewall. The frame includes a top member with first and second legs and first and second rims pivotally attached thereto. The frame is foldable from an erected position wherein the rims are parallel to the top member to a folded position wherein the rims are non-parallel to the top member. The floor supported below the rims includes first and second halves connected by a hinge. The first and second halves are foldable downwardly about the hinge, but the hinge prevents folding of the first and second halves upwardly about the hinge. The flexible sidewall connects the first and second floor halves to the first and second rims, respectively. The first and second rims and the sidewalls prevent the first and second halves of the floor from being downwardly folded about the hinge when the frame is in the erected position.




In accordance with another aspect of the invention, a bassinet is provided which comprises a frame, and a foldable floor. The foldable floor is supported by the frame and connected by a center hinge. The center hinge is suspended without any structure directly therebelow.




In accordance with another aspect of the invention, a bassinet is provided which comprises a top member, first and second legs pivotally attached to the top member, first and second rims pivotally attached to the top member, first and second tension bars connecting the first leg to the first rim and the second leg to the second rim, respectively, a flexible wall extending downwardly from the first and second rims, a foldable floor supported in a substantially horizontal plane by the flexible wall below the first and second rims to define a crib space with the flexible wall, and a hinge connecting first and second halves of the foldable floor. The hinge also prevents upward folding of the floor, while the tension bars, rims, and flexible wall prevent downward folding of the floor.











These and other aspects and 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 an isometric view of a bassinet constructed in accordance with the teachings of the invention;





FIG. 2

is a side view of the bassinet shown in

FIG. 1

;





FIG. 3

is a top view of the bassinet shown in

FIG. 1

, with a mattress therein being partially torn away to show a suspended hinge according to the invention;





FIG. 4

is a bottom view of the bassinet shown in

FIG. 1

;





FIG. 5

is an end view of the bassinet shown in

FIG. 1

;





FIG. 6

is a side view of the bassinet shown in

FIG. 1

, and configured in a stowed or folded position;





FIG. 7

is a sectional view of the suspended hinge taken along line


7





7


of

FIG. 3

; and





FIG. 8

is a sectional view of the suspended hinge shown in

FIG. 7

, but showing the hinge in a stowed or folded position.











While the invention is susceptible to various modifications and alternative constructions, certain illustrative embodiments thereof have been shown in the drawings and will be described below in detail. It should be understood, however, that there is no intention to limit the scope of this patent to the specific forms disclosed, but on the contrary, the intention is to cover all modifications, alternative constructions and equivalents falling within the spirit and scope of the appended claims.




DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS




Referring now to the drawings, and with particular reference to

FIG. 1

, a bassinet constructed in accordance with the teachings of the invention is generally depicted by reference numeral


20


. As shown therein, the bassinet


20


includes a sleeping basket


22


supported by a foldable stand


24


. As will be discussed in further detail herein, the bassinet


20


is foldable from the deployed or erected position shown in

FIGS. 1-5

, to the stowed or folded position shown in FIG.


6


. When in the deployed position, the bassinet


20


provides a stable and sturdy sleeping basket


22


, and when in the stowed position, the bassinet


20


forms a compact structure for ease of storage and transportation purposes.




Referring again to

FIG. 1

, and with additional reference to

FIGS. 2-5

, the basket


22


is shown having a floor


26


.from which a flexible side


28


upwardly extends to define an oblong-shaped enclosure, with an open top


30


. The flexible side


28


is depicted as one continuous expanse of material having four identifiable sides, but could be provided in multiple sections without departing from the scope and spirit of the invention.




As shown best in FIGS.


3


and


7


-


8


, the floor


26


includes a hardened sub-floor


32


, on which a cushioned mattress material


34


having buttons


36


rests. The sub-floor


32


is provided in first and second halves


38


,


40


, which are connected by a unidirectional hinge


42


. The hinge


42


can be provided in multiple portions, such as the two, laterally spaced, portions depicted.




Each portion of the hinge


42


, as shown in detail in

FIGS. 7 and 8

, includes first and second leaves


44


and


46


connected at a pivot


48


. Each leaf


44


and


46


includes an elongated base


50


and a raised ledge


52


. The elongated base


50


and raised ledge


52


are provided normal to each other. The second leaf


46


includes a bearing surface


54


at a corner


56


thereof. A pivot rod


58


, connected to the first leaf


44


, matingly fits within the bearing surface


54


to allow for pivotal motion. As shown in

FIGS. 7 and 8

, and described in further detail herein, it can be seen that the hinge


42


is able to pivot downwardly about pivot


48


from the deployed position shown in

FIG. 7

to the stowed position shown in FIG.


8


. However, the contact between the adjacent raised ledges


52


, and the location of the pivot


48


on a bottom surface


60


of the hinge


42


prevents the hinge


42


from being pivoted upwardly about the pivot


48


, the significance of which will be discussed in further detail herein.




Referring now to

FIG. 2

, the illustrated stand


24


has a frame or top member


62


to which first and second rims


64


,


66


(shown in phantom) are pivotally attached at pivots


68


,


70


, respectively. First and second legs


72


,


74


are also pivotally attached to the frame


62


, at separate pivots


76


,


78


, respectively (also shown in phantom). Each of the first and second rims


64


,


66


and first and second legs


72


,


74


are substantially U-shaped in the depicted bassinet


20


. However, persons of ordinary skill in the art will appreciate that other shapes are possible, particularly with regard to first and second legs


72


,


74


, wherein four individual legs could be provided as opposed to the two legs depicted without departing from the scope or spirit of the invention. Supporting cross-bars


79


,


80


may laterally span the U-shaped legs


72


,


74


to provide added structural support.




When the stand


24


is folded from the deployed position shown in

FIGS. 1-5

to the stowed position shown in

FIG. 6

, each of the first and second rims


64


,


66


, and first and second legs


72


,


74


are substantially parallel to one another with the flexible sidewall


28


being collapsed inwardly. In so doing, the resulting width α of the bassinet


20


is minimized and limited to the relatively short expanse of material provided by the frame


62


. Accordingly, in the stowed position, the bassinet


20


can be easily transported and/or stored in multiple areas, including beneath a bed, or within a trunk space, for example.




In order to temporarily lock the stand


24


in the deployed position shown in

FIG. 1

, and to thereby secure the floor


26


in a horizontal plane, a plurality of tension bars


81


are provided. In the depicted embodiment, four such tension bars


81


are provided, two of which connect the first rim


64


to the first leg


72


, and two of which connect the second rim


66


to the second leg


74


. Referring specifically to

FIG. 2

, the tension bars


81


are shown in detail. Each includes first and second links


82


,


84


, which are pivotally connected to a locking clip


86


. As can be seen from

FIGS. 3 and 4

, each locking clip


86


is channel-shaped and includes a closed side


88


from which first and second lateral sides


90


,


92


extend. An open space


94


is provided opposite the closed side


88


and allows the pivot links


82


,


84


to pass therethrough. Such tension bars


81


are of a conventional design, common on such devices as foldable card tables and the like, and are often referred to as over-center locks.




The combined length of the first and second links


82


,


84


and locking clip


86


is slightly greater than the combined distance depicted by the center line β between adjacent rims and legs. Therefore, as the stand


24


is folded from the stowed position of

FIG. 6

to the deployed position of

FIGS. 1-5

, the user must exert substantial force on the locking clip


86


to force the corresponding tension bar past the center line β. This in turn flexes the rims and legs away from each other to allow for the locking clip


86


to pass over-center. The tension bar


80


is locked in place by engagement of sides


96


,


98


of the pivot links


82


,


84


, respectively, with the closed sides


88


of the locking clips


86


. In so doing, the locking clips


86


are prevented from further outward motion slightly past the center line β, and the stand


24


is temporarily locked into the deployed position. In order to move or transform the stand


24


back into the stowed position the user must exert sufficient force in the direction of arrow ┌ (see

FIG. 2

) to pivot the tension bars


80


inwardly.




When the tension bars


81


are in the locked positions shown in

FIGS. 1-5

, the tension generated thereby is transferred through the stand


24


such that the first and second rims


64


,


66


are located in planes which are substantially horizontal to ground. Since the flexible sidewall


28


is connected to the first and second rims


64


,


66


, and to the first and second floor halves


38


,


40


, this tension is also transferred through the flexible side


28


to the floor


26


to hold the floor horizontal to ground as well. The flexible sidewall


28


is sized to barely stretch between the floor


26


and the first and second rims


64


,


66


when in the deployed position to facilitate this tension transfer.




It can therefore be seen that the hinge


42


, which prevents upward rotation past horizontal, and the tension bars


38


, which prevent downward rotation past horizontal, cooperate to maintain and temporarily lock the floor


26


in a horizontal position when the bassinet


20


is in the deployed position. Such horizontal maintenance is provided without any structure whatsoever being provided directly below the hinge


42


, or floor


26


, as clearly shown in FIG.


2


. Moreover, the hinge


42


cooperates with the floor


26


to provide a continuous, flat bottom surface for the sleeping basket


22


, adding to the comfort of the infant when the bassinet


20


is in use.




As accessories to the bassinet


20


, a storage basket or bay


100


is provided below the sleeping basket


22


. The storage bay


100


is preferably manufactured from fabric to allow for necessary flexibility when moving from the stowed position to the deployed position. The storage bay


100


may include an arcuately shaped bottom


102


with first and second semi-circularly shaped sides


104


and


106


. The storage bay


100


may be connected at each of the four resulting corners


108


to the first and second legs


72


and


74


.




As shown in

FIGS. 1 and 3

, a protective upper shield


110


may be provided proximate the first and second rims


64


and


66


and be partially removable therefrom via a suitable fastener, such as a zipper


112


. When the upper shield


110


is secured to the first and second rims


64


,


66


via the zipper


112


, the upper shield


110


is horizontal to the floor


26


and provides an enclosed crib space


114


. The protective shield


110


is preferably manufactured from a mesh-like material to allow for communication between the crib space


114


and ambient air. The flexible sidewall


28


is preferably manufactured from a similar mesh material. To secure the flexible sidewall


28


to the first and second rims


64


,


66


and the floor


26


, a solid fabric material may be employed.




In operation, it can therefore be seen that the bassinet


20


can be easily transformed from the stowed position, shown in

FIG. 6

, to the deployed position, shown in

FIG. 2

, with limited effort by the user. More specifically, starting with

FIG. 6

, a user can simply pull upwardly and outwardly upon the first and second rims


64


,


66


at points Δ. This motion in turn pulls the first and second rims


66


,


64


into a horizontal position parallel with the frame


62


. Since the first and second rims


64


,


66


are attached to the tension bars


81


, which in turn are connected to the first and second legs


72


,


74


, the tension bars straighten and the legs are pulled apart to the position shown in FIG.


2


. If sufficient force is generated by such motion, the locking clips


86


may pass over-center and into the locked position. Alternatively, once the stand


26


is in the deployed position, the user may need to apply additional force to the locking clips


86


to pass the clips


86


over-center and lock the bassinet


20


into the deployed position.




When the bassinet


20


is to be placed back into the stowed position of

FIG. 6

, the user simply needs to apply sufficient force to the locking clips


86


in the opposite direction, which in turn collapses the first and second rims


64


,


66


downwardly and enables the first and second legs


72


,


74


to be folded inwardly into the parallel configuration of FIG.


6


. The bassinet


20


can then be grasped, as by the frame


62


, or by the first and second legs


72


,


74


for easy transportation and storage purposes.




From the foregoing, it can be seen that the disclosed bassinet can be easily transformed from a sturdy deployed position to a compact stowed position. In the deployed position, substantial structure is provided to ensure the bassinet is secured and stable, yet no structure is provided directly below the center of the bassinet floor. In the stowed position, the illustrated bassinet occupies little space and is easily transported. Moreover, through such a design, the disclosed unit can be easily manufactured at relatively low cost and weight.



Claims
  • 1. A bassinet, comprising:a frame having a top member with first and second legs and first and second rims pivotally attached thereto, the frame being foldable from an erected position wherein the rims are parallel to the top member, to a folded position wherein the rims are non-parallel to the top member; a floor supported below the rims, the floor including first and second halves connected by a hinge, the first and second halves being foldable downwardly about the hinge, the hinge preventing folding of the first and second halves upwardly about the hinge; and a flexible sidewall connecting the first and second floor halves to the first and second rims, respectively, the first and second rims and flexible sidewall preventing the first and second halves from folding downwardly about the hinge when the frame is in the erected position; the hinge including first and second leaves connected at a pivot, the first and second leaves each being substantially L-shaped in cross section and including a corner, the pivot being provided at the corner of each leaf.
  • 2. The bassinet of claim 1 wherein no supporting structure is provided directly beneath the floor.
  • 3. The bassinet of claim 1 wherein the hinge is suspended without supporting structure directly beneath the hinge.
  • 4. The bassinet of claim 1 further including a first tension bar extending between the first rim and first leg, and a second tension bar extending between the second rim and the second leg.
  • 5. The bassinet of claim 4 wherein the first and second tension bars include over-center locks.
  • 6. The bassinet of claim 5 wherein the tension created in the frame by the first and second tension bars is transferred through the flexible sidewall to the floor to maintain the floor in a horizontal position when the frame is in the erected position.
  • 7. The bassinet of claim 6 wherein the flexible side wall is made of a mesh material.
  • 8. The bassinet of claim 1 wherein the first and second legs and first and second rims are foldable into a parallel configuration when the frame is in the folded position.
  • 9. The bassinet of claim 1 further including a storage basket suspended between the legs below the floor.
  • 10. The bassinet of claim 1 further including a removable protective shield coupled to the first rim and the second rim.
  • 11. A bassinet, comprising:a frame; and a foldable floor supported by the frame and connected by a center hinge, the center hinge including first and second leaves connected by a pivot, the first and second leaves each including an inner edge, the inner edges being adjacent one another when the foldable floors are horizontal, the pivot being provided on one side of the hinge proximate the inner edges; wherein the foldable floor is suspended without any structure supporting it from below.
  • 12. The bassinet of claim 11 wherein the frame is foldable from a deployed position to a space-saving stowed position.
  • 13. The bassinet of claim 11 wherein the frame includes a top member to which first and second U-shaped legs and first and second U-shaped rims are pivotally connected.
  • 14. The bassinet of claim 11 wherein the center hinge is adapted to pivot in only a single direction.
  • 15. The bassinet of claim 13 wherein the frame is lockable in the deployed position by a first tension bar extending between the first leg and first rim and a second tension bar between the second leg and the second rim.
  • 16. The bassinet of claim 15 wherein the first and second tension bars each include first and second legs pivotally attached to a locking clip, the locking clip having a base and first and second opposed sides, the first and second legs being pivotally attached to the first and second sides, the base preventing rotation of the first and second legs in one direction.
  • 17. The bassinet of claim 15 further including flexible sides connecting the foldable floor to the frame.
  • 18. The bassinet of claim 17 wherein tension generated by the first and second tension bars is transferred through the frame and flexible sides to lock the floor in a horizontal configuration in cooperation with the center hinge.
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