Bench assembly

Information

  • Patent Grant
  • 6802561
  • Patent Number
    6,802,561
  • Date Filed
    Monday, February 10, 2003
    21 years ago
  • Date Issued
    Tuesday, October 12, 2004
    20 years ago
Abstract
A bench assembly is provided which includes a seat assembly and at least two backrest assemblies. The back assemblies are rotatable from one side of the seat assembly to an opposite side independently of one another such that persons sitting on the seat assembly can be facing in the same direction or in opposite directions.
Description




BACKGROUND OF THE INVENTION




Benches typically have a seat portion sized to accommodate two or more persons and a back rest fixed to the seat portion. As such, each person sitting on the bench is forced to face in the same direction. This is not a problem if each person sitting on the bench desires to face the same direction, which is often the case when viewing scenery or a particular activity. However, there are times when individuals desire to sit on a bench for the purpose of relaxing and having a conversation with another person sitting on the bench. In this regard, it is uncomfortable for two persons who are sitting side by side and facing the same direction to carry on a conversation. To look at one another, each person must turn his head or twist his body toward the other person. Repeating these motions over a period of time can be extremely uncomfortable.




Thus, a need exists for a bench assembly which allows each person sitting on the bench assembly to sit facing the same direction or to sit facing in opposite directions, thereby facing one another. It is to such a bench assembly that the present invention is directed.











BRIEF DESCRIPTION OF SEVERAL VIEWS OF THE DRAWINGS





FIG. 1

is a perspective view of a bench assembly constructed in accordance with the present invention having two back rest assemblies shown facing in the same direction.





FIG. 2

is another perspective view of the bench assembly of FIG.


1


.





FIG. 3

is a perspective view of the bench assembly of

FIG. 1

showing the back rest assemblies facing in opposite directions.





FIG. 4

is an enlarged, perspective view of a hinge assembly used in the present invention.





FIG. 5

is a perspective view of another embodiment of a bench assembly constructed in accordance with the present invention having two back rest assemblies shown facing in the same direction.





FIG. 6

is a perspective view of the bench assembly of

FIG. 5

showing the back rest assemblies facing in opposite directions.





FIG. 7

is an enlarged, perspective view of another embodiment of a hinge assembly in an unlocked position used in the present invention.





FIG. 8

is another view of the hinge assembly of

FIG. 7

shown in a locked position.





FIG. 9

is a perspective view of another embodiment of a bench assembly constructed in accordance with the present invention.





FIG. 10

is an enlarged, perspective view of another embodiment of a hinge assembly of the bench assemblies constructed in accordance with the present invention.











DETAILED DESCRIPTION OF THE INVENTION




The term “bench assembly” as used herein is to be understood to include self-standing bench structures, gliders, swings and other devices having a seat and a back rest upon which people sit.




Referring now to the drawings, and more particularly to

FIGS. 1 and 2

, a bench assembly


10


constructed in accordance with the present invention is illustrated. The bench assembly


10


includes a seat assembly


12


and a pair of back rest assemblies


14




a


and


14




b


which are selectively rotatable about a center line


16


so as to be positionable on either side of the seat assembly


12


.




The seat assembly


12


includes a seat frame


18


which is characterized as having a first side


20


, a second side


22


, a first end


23


, and a second end


24


. The seat frame


18


is further provided with a central slot


26


extending generally from the first side


20


to the second side


22


.




The seat assembly


12


has a plurality of slats


28


secured across the seat frame


18


so as to form a first sitting area


30


and a second sitting area


32


. The first sitting area


30


is generally defined as extending between the first side


20


and the second side


22


and between the first end


23


and the central slot


26


. Similarly, the second sitting area


32


is generally defined as extending between the first side


20


and the second side


22


and between the second end


24


and the central slot


26


.




The seat assembly


12


is further provided with a pair of outer arm rests


34


and


36


and a central arm rest


38


. The outer arm rest


34


is connected to the first end


23


of the seat frame


18


by a plurality of vertical support members


40




a,




40




b,


and


40




c


with the vertical support member


40




b


being positioned so as to be aligned with the center line


16


. Likewise, the outer arm rest


36


is connected to the second end


24


of the seat frame


18


by a plurality of vertical support members


42




a,




42




b,


and


42




c


with the vertical support member


42




b


positioned so as to be aligned with the center line


16


. Finally, the central arm rest


38


is connected to the seat frame


18


by a plurality of vertical support members


44




a


-


44




d


which are secured to the seat frame


18


within the central slot


26


. The vertical support members


44




b


and


44




c


are secured to the seat frame


18


in alignment with the center line


16


, but on opposite sides of the central slot


26


.




As shown in

FIGS. 1 and 2

, the back rest assembly


14




a


includes a back frame


46


having a first side


48


, a second side


50


, a first end


52


, and a second end


54


. Likewise, the back rest assembly


14




b


has a back frame


56


having a first side


57


, a second side


58


, a first end


60


, and a second end


62


. Each of the back rest assemblies


14




a


and


14




b


further include a plurality of slats


64


secured across the back frame


46


and the back frame


56


.




Each of the back rest assemblies


14




a


and


14




b


is connected to the seat assembly


12


so as to be rotatable about the center line


16


from the first side


20


of the seat frame


18


to the second side


22


of the seat frame


18


thereby allowing the back rest assemblies


14




a


and


14




b


to be positioned facing the same direction, as shown in

FIGS. 1 and 2

, or positioned facing in opposite directions, as shown in FIG.


3


.




Each back rest assembly


14




a


and


14




b


is connected to the seat assembly


12


with a pair of hinge assemblies


66




a


and


66




b.


As best shown in

FIG. 4

, the hinge assembly


66




b


includes a T-shaped arm


68


having a first portion


70


and second portion


72


extending from the first portion


70


in a substantially perpendicular relationship. The second portion


72


is provided with a distal end


73


which is offset relative to the first portion


70


to facilitate rotation of the back rest assemblies


14




a


and


14




b


relative to the seat assembly


12


. The hinge assembly


66




a


is a mirror image of the hinge assembly


66




b.






The back rest assembly


14




a


is mounted to the seat assembly


12


to correspond to the first sitting area


30


and the back rest assembly


14




b


is mounted to the seat assembly


12


to correspond to the second sitting area


32


. To assemble the back rest assembly


14




a


to the seat assembly


12


, the first portion


70


of the hinge assembly


66




b


is mounted to the second side


50


of the back frame


46


such that the second portion


72


of the hinge assembly


66




a


extends substantially perpendicularly from the back frame


46


from a position which is substantially an equal distance from the first end


52


and the second end


54


of the back frame


46


. The distal end


73


of the second portion


72


is then pivotally attached to the vertical support member


44




b


at a point that intersects the center line


16


.




Similarly, the hinge assembly


66




a


is attached to the first side


48


of the back frame


46


and the distal end


73


of the second portion


72


is pivotally connected to the vertical support member


40




b


at a point that intersects the center line


16


. The back rest assembly


14




b


is attached to the seat assembly


12


with a pair of the hinge assemblies


66




a


and


66




b


so as to correspond with the second sitting area


32


in an identical manner.




The distal end


73


of the hinge assembly


66




a


and


66




b


are pivotally attached to their respective vertical support members so as to provide a pivot point with is substantially centered between the first side


20


and the second side


22


of the seat frame


18


whereby the back rest assemblies


14




a


and


14




b


rotate about the center line


16


of the seat assembly


12


in a symmetrical fashion. It will be appreciated that by varying the length of the second portion


72


of the hinge assemblies


66




a


and


66




b


and/or the position along the length of the vertical support member at which the distal end


73


is connected to the vertical support member, the angular relationship of the back rest assemblies


14




a


and


14




b


relative to the seat assembly


12


can be altered.




To cushion the back rest assemblies


14




a


and


14




b


when the back rest assemblies


14




a


and


14




b


are engaged against the seat assembly


12


, a rubber stop member


78


is secured to each of the first and second ends


52


and


54


of the back frame


46


and to the first and second ends


60


and


62


of the back frame


56


.




Referring now to

FIGS. 5 and 6

, another embodiment of a bench assembly


80


is shown. The bench assembly


80


is a glider and is similar to the bench assembly


10


herein before described except as described hereinafter. That is, the bench assembly


80


includes a seat assembly


82


and a pair of back rest assemblies


84




a


and


84




b


which are selectively positioned about a center line


86


so as to be positionable on either side of the seat assembly


82


, are operably connected to a glider frame


81


.




The seat assembly


82


includes a seat frame


88


which is characterized as having a first side


90


, a second side


92


, a first end


93


, and a second end


94


. The seat frame


88


is further provided with a central slot


96


extending generally from the first side


90


to the second side


92


. The seat assembly


82


has a plurality of slats


98


secured across the seat frame


88


so as to form a first sitting area


100


and a second sitting area


102


. The first sitting area


100


is generally defined as extending between the first side


90


and the second side


92


and between the first end


93


and the central slot


96


. Similarly, the second sitting area


102


is generally defined as extending between the first side


90


and the second side


92


and between the second end


94


and the central slot


96


.




The seat assembly


82


is further provided with a pair of outer arm rests


104


and


106


and a central arm rest


108


. The outer arm rest


104


is connected to the first end


93


of the seat frame


88


by a plurality of vertical support members


110




a


,


110




b


and


119




c


. Likewise, the outer arm rest


106


is connected to the second end


94


of the seat frame


88


by a plurality of vertical support members


112




a,




112




b


and


112




c


. Finally, the central arm rest


108


is connected to the seat frame


88


by a plurality of vertical support members


114




a


-


114




d


which are secured to the seat frame


88


within the central slot


96


. The vertical support members


114




b


and


114




c


are secured to the seat frame


88


in alignment with the center line


86


, but on opposite sides of the central slot


96


.




The back rest assembly


84




a


includes a back frame


116


having a first side


118


, a second side


120


, a first end


122


, and a second end


124


. Likewise, the back rest assembly


84




b


has a back frame


126


having a first side


127


, a second side


128


, a first end


130


, and a second end


132


. Each of the back rest assemblies


84




a


and


84




b


further include a plurality of horizontally disposed slats


134


secured across the back frame


116


and the back frame


126


.




Each of the back rest assemblies


84




a


and


84




b


is connected to the seat assembly


82


so as to be positioned about the center line


86


from the first side


90


of the seat frame


88


to the second side


92


of the seat frame


88


thereby allowing the back rest assemblies


84




a


and


84




b


to be positioned facing the same direction, as shown in

FIG. 5

, or positioned facing in opposite directions, as shown in FIG.


6


.




Each of the back rest assemblies


84




a


and


84




b


is connected to the seat assembly


82


with a pair of hinge assemblies


136




a


and


136




b


. The hinge assemblies


136




a


and


136




b


are mirror images of one another. Thus, for the sake of brevity, only the hinge assembly


136




a


will be described in detail.




As best shown in

FIGS. 7 and 8

, the hinge assembly


136




a


includes a spacer


138




a


, a pin


140




a,


an arm


142




a,


and a latching member


144




a


. The spacer


138




a


is attached to the outer arm rest


106


in alignment with the center line


86


(FIG.


5


). The pin


140




a,


which has a shaft portion


146




a


and a head portion


148




a,


extends from the spacer


138




a


such that the head portion


148




a


and an end of the spacer


138




a


cooperate to form a recess (not shown). One end of the arm


142




a


is attached to the second side


128


of the back frame


126


of the back rest assembly


84




b


such that the arm


142




a


extends substantially perpendicularly from the back frame


126


. Further, the arm


142




a


extends from the back frame


126


at a location near the second end


132


of the back frame


126


. As such, the arm


142




a


remains positioned below the outer arm rest


106


so as not to interfere with use of the outer arm rest


106


. The opposing end of the arm


142




a


is provided with a hook portion


158




a.


The hook portion


158




a


of the arm


142




a


is sized and dimensioned to be received in the recess and engage the shaft portion


146




a


of the pin


140




a.






The latching member


144




a


has a first end


160




a


and a second end


162




a.


The first end


160




a


of the latching member


144




a


is pivotally attached to the arm


142




a,


and the second end


162




a


of the latching member


144




a


is provided with a notch


164




a


sized and dimensioned to receive the shaft portion


146




a


of the pin


140




a.






As shown in

FIGS. 5 and 7

, the back rest assembly


84




a


is mounted to the seat assembly


82


to correspond to the first sitting area


100


and the back rest assembly


84




b


is mounted to the seat assembly


82


to correspond to the second sitting area


102


. To secure the back rest assembly


84




b


to the seat assembly


82


, the hook portion


158




a


of the arm


142




a


is positioned on the shaft portion


146




a


of the pin


140




a


so as to hold the arm


142




a


between the head portion


148




a


of the pin


140




a


and the spacer


138




a.


The latching member


144




a


is rotated until the second end


162




a


of the latching member


144




a


is positioned between the head portion


148




a


of the pin


140




a


and the arm


142




a


with the shaft portion


146




a


received in the notch


164




a


of the latching member


144




a


so as to lock the arm


142




a


in the recess.




Similarly, the hinge assembly


136




b


is locked in position relative to the central arm rest


108


, in a manner similar to that discussed above for the hinge assembly


136




a,


thereby causing the back rest assembly


84




b


to be secured and supported.




The back rest assembly


84




a


is attached to the seat assembly


82


with a pair of the hinge assemblies


136




a


and


136




b


so as to correspond with the first sitting area


100


in an identical manner. The hinge assemblies


136




a


and


136




b


function in an identical manner as described above, except that the hinge assembly


136




a


is attached to the first side


118


of the back frame


116


and the hinge assembly


136




b


is attached to the second side


120


of the back frame


116


.




As mentioned above and as shown in

FIG. 6

, the back rest assemblies


84




a


and


84




b


may be positioned facing opposite directions. Each of the back rest assemblies


84




a


and


84




b


may be removed from its position when facing the same direction to face a direction opposite the other. For example, to remove the back rest assembly


84




a,


the latching member


144




a


of the hinge assembly


136




a


is rotated to an unlocked position wherein the latching member


144




a


is disengaged from the shaft portion


146




a


of the pin


140




a.


Similarly, the latching member


144




b


of the hinge assembly


136




b


is rotated to an unlocked position wherein the latching member


144




b


is disengaged from the shaft portion


146




b


of the pin


140




b.


An individual may then move the back rest assembly


84




a


inwardly so that the hook portion


158




a


of the arm


142




a


disengages from the shaft


148




a


of the pin


140




a


and the hook portion


158




b


of the arm


142




b


disengages from the shaft portion


146




b


of the pin


140




b


, respectively. The back rest assembly


84




a


may then be lifted and removed from the first side


90


of the seat frame


88


and positioned on the second side


92


of the seat frame


88


to face in the opposite direction of the back rest assembly


84




b.






To secure the back rest assembly


84




a


to the second side


92


of the seat frame


88


, the arm


142




b


of the hinge assembly


136




b


is positioned so that the hook portion


158




b


of the arm


142




b


is positioned to engage the shaft portion


146




a


of the pin


140




a


so as to hold the arm


142




b


between the head portion


148




a


of the pin


140




a


and the spacer


138




a.


Likewise, the arm


142




a


of the hinge assembly


136




a


is positioned so that the hook portion


158




a


of the arm


142




a


is positioned to engage the shaft portion


146




b


of the pin


140




b


so as to hold the arm


142




a


between the head portion


148




b


of the pin


140




b


and the spacer


138




b


. Finally, each of the latching members


144




a


and


144




b


are rotated to the locked position thereby securing the back rest assembly


84




a


to the second side


92


of the seat frame


88


.




Referring now to

FIG. 9

, another embodiment of a bench assembly


190


is shown. The bench assembly


190


is a swing suspended from a support structure


192


by chain suspension members


194




a


and


194




b.


The bench assembly


190


is similar in construction to the bench assemblies


10


and


80


in that the bench assembly


190


includes a seat assembly


196


and a pair of back rest assemblies


198




a


and


198




b


which are selectively rotatable about a center line


200


so as to be positionable on either side of the seat assembly


196


, outer arm rests


202


and


204


and an inner arm rest


206


. The chain suspension member


194




a


extends through openings


208




a


and


208




b


in the outer arm rest


202


and is connected to a lower frame portion


209


of the bench assembly


190


in a conventional manner, such as with screw eyes (not shown).




Similarly, the chain suspension member


194




b


extends through openings


210




a


and


210




b


in the outer arm rest


204


and is connected to the lower frame portion


208


of the bench assembly


190


in a conventional manner, such as with screw eyes


212




a


and


212




b,


so that the suspension members


194




a


and


194




b


be are disposed on opposite sides of the bench assembly


190


whereby the bench assembly


190


is maintained in a suspended, balanced position substantially as shown.




Referring now to

FIG. 10

shown therein is another embodiment of a hinge assembly


214


which can be used in the construction of the bench assemblies of the present invention. The hinge assembly


214


is shown attached to a portion of a back rest assembly


216


and an outer arm rest


218


which are similar to the back rest assemblies and the outer arm rests of the bench assemblies


10


,


80


and


190


herein before described. In this embodiment, the hinge assembly


214


includes a T-shaped arm


220


having a first portion


222


and a second portion


224


extending from the first portion


222


in a substantially perpendicular relationship.




The first portion


222


of the arm


220


is connected to the backrest assembly


216


and the second end portion


224


of the arm


220


is pivotally connected to the outer arm rest


218


via a pivot pin


226


and a spacer


228


so that the backrest assembly


216


can selectively rotated between a first and a second position, as described above for the other embodiments of the bench assemblies.




From the above, it can be seen that the bench assemblies are versatile and allow a person to quickly and easily change the direction that one or more backrest assemblies are facing. This feature accommodates the desires of the those sitting on the bench assembly by merely rotating the backrest assemblies from one side of the seat assembly to the other side of the seat assembly.




It will also be appreciated that the components of the bench assemblies


10


,


80


and


190


described above, including their respective hinge assemblies can be constructed from any suitable rigid, durable material, such as wood, plastic, metal and the like, and the components may be fastened to one another with any suitable fasteners, including screws, nails, bolts, brackets, glue, and combinations thereof. It will also be appreciated that while the bench assemblies


10


,


80


and


190


have been illustrated has having two sitting areas, the bench assemblies of the present invention can be constructed to have any number of sitting areas.




From the above description, it is clear that the present invention is well adapted to carry out the objects and to attain the advantages mentioned herein as well as those inherent in the invention. While presently preferred embodiments of the invention have been described for purposes of this disclosure, it will be understood that numerous changes may be made which will readily suggest themselves to those skilled in the art and which are accomplished within the spirit of the invention disclosed and claimed.



Claims
  • 1. A bench assembly, comprising:a seat assembly comprising; a seat frame having a first side, a second side, a first end and a second end; a plurality of seats supported by the seat frame for defining at least a first seating area and a second seating area, the first seating area spatially disposed from the second seating area so that a slot is provided there between, each of the first and second seating areas adapted to receive and support a person's posterior and upper legs when the person is in a sitting position on the first or second seating areas; a first arm rest connected to the first end of the seat frame so as to extend upwardly from the first seating area; a second arm rest connected to the second end of the seat frame so as to extend upwardly from the second seating area; a central arm rest disposed in the slot and connected to the seat frame such that the central arm rest extends upwardly between the first and second seating areas; a first back rest assembly; a second back rest assembly; and means for pivotally connecting the first back rest assembly to the first arm rest and the center arm rest and for pivotally connecting the second back rest assembly to the second arm rest and the center arm rest such that the first back rest assembly extends substantially upward from the first seat assembly, and the second back rest assembly extends substantially upward from the second seat assembly the first back rest assembly being rotatable above the first seating area and about a center line of the seat frame from the first side of the seat frame to the second side of the seat frame whereby, when the first back rest assembly is disposed on the first end of the seat frame, the second end of the first back rest assembly engages the first side of the seat frame and when the first back rest assembly is disposed on the second side of the seat frame the first end of the first back assembly engages the second side of the seat frame, the second back rest assembly being rotatable above the second seating area and about the center line of the seat frame from the first side of the seat frame to the second side of the seat frame whereby, when the second back rest assembly is disposed on the first side of the seat frame, the second end of the second back rest assembly engages the first end of the seat frame and when the second back rest assembly is disposed on the second side of the seat frame the first end of the second back rest assembly engages the second side of the seat frame, the first and second back rest assemblies being rotatable independent of one another so that the first and second back rests can be positioned facing the same direction or facing opposite directions.
  • 2. The bench assembly of claim 1 wherein each back rest assembly comprises a frame and a plurality of slats.
  • 3. The bench assembly of claim 1 wherein the bench assembly is suspended from a support member by suspension members such that the bench assembly operates as a swing.
  • 4. The bench assembly of claim 1 wherein the bench assembly is supported on a glider frame such that the bench assembly operates as a glider.
  • 5. A bench assembly, comprising:a seat assembly comprising; a seat frame having a first side, a second side, a first end and a second end; a plurality of seats supported by the seat frame for defining at least a first seating area and a second seating area, the first seating area spatially disposed from the second seating area so that a slot is provided there between, each of the first and second seating areas adapted to receive and support a person's posterior and upper legs when the person is in a sitting position on the first or second seating areas; a first arm rest connected to the first end of the seat frame so as to extend upwardly from the first seating area; a second arm rest connected to the second end of the seat frame so as to extend upwardly from the second seating area; a central arm rest disposed in the slot and connected to the seat frame such that the central arm rest extends upwardly between the first and second seating areas; a first back rest assembly and a second back rest assembly; and hinge means for pivotally connecting the first back rest assembly to the first arm rest and the center arm rest and for pivotally connecting the second back rest assembly to the second arm rest and the center arm rest such that the first back rest assembly extends substantially upward from the first seat assembly and is rotatable about a center line of the seat frame from the first side of the seat frame to the second side of the seat frame and the second back rest assembly extends substantially upward from the second seat assembly and is rotatable about the center line of the frame assembly independent of the rotation of the first back rest whereby the first and second back rests can be positioned facing the same direction or facing opposite directions, the hinge means comprising: a plurality of substantially T-shaped arms, each of the arms having a first portion and a second portion, the second portion extending substantially perpendicularly to the first portion and having a distal end off set relative to the first portion for facilitating rotation of the first and second back rest assemblies relative to the first and second seating areas of the seat assembly.
  • 6. The bench assembly of claim 5 wherein the hinge means further comprises a latching member that locks the distal end of the second portion of the T-shaped member in a locked position.
  • 7. The bench assembly of claim 6 wherein the latching member is provided with a notch sized to receive a pivot pin, the latching member pivotally attached to the second portion of the arm near the distal end thereof, and wherein the latching member is moved to the locked in position by rotating the latching member so that the pivot pin is disposed in the notch of the latching member.
  • 8. The bench assembly of claim 6 wherein the hinge means further comprises a spacer for enhancing rational movement of the first and second back rest assemblies relative to the seat assembly.
  • 9. The bench assembly of claim 5 wherein the hinge means comprises a plurality of arm members, each of the arm members having a first portion and a second portion, the first portion of one of the arm members connected to the first side of the first back rest assembly and the second portion pivotally connected to the first arm rest, the first portion of second arm member connected to the second side of the first back rest assembly and the second end portion thereof pivotally connected to a first side of the central arm rest, the first portion of a third arm member connected to the first side of the second back rest assembly and the second portion thereof pivotally connected to a second side of the central arm rest, and the first end portion of a fourth arm member connected to the second side of the second back rest assembly and the second end portion thereof pivotally connected to the second arm rest.
  • 10. A bench assembly, comprising:a seat assembly comprising; a seat frame having a first side, a second side, a first end and a second end; a plurality of seats supported by the seat frame for defining at least a first seating area and a second seating area, the first seating area spatially disposed from the second seating area so that a slot is provided there between, each of the first and second seating areas adapted to receive and support a person's posterior and upper legs when the person is in a sitting position on the first or second seating areas; a first arm rest connected to the first end of the seat frame so as to extend upwardly from the first seating area; a second arm rest connected to the second end of the seat frame so as to extend upwardly from the second seating area; a central arm rest disposed in the slot and connected to the seat frame such that the central arm rest extends upwardly between the first and second seating areas; a first back rest assembly comprising a frame having a first side, a second side, a first end and a second end; a second back rest assembly comprising a frame having a first side, a second side, a first and a second end; and wherein the first back rest assembly is pivotally connected to the first arm rest and the center arm rest such that the first back rest assembly extends substantially upward from the first seat assembly and the second back rest assembly is pivotally connected to the second arm rest and the center arm rest such that the second back rest assembly extends substantially upward from the second seat assembly, the first back rest assembly rotatable above the first seat assembly about a center line of the seat frame from the first side of the seat frame to the second side of the seat frame whereby, when the first back rest assembly is disposed on the first end of the seat frame, the second end of the frame of the first back rest assembly engages the first side of the seat frame and when the first back rest assembly is disposed on the second side of the seat frame the first end of the frame of the first back rest assembly engages the second side of the seat frame, and the second back rest assembly is rotatable above the second seat assembly about the center line of the seat frame independent of the rotation of the first back rest assembly whereby, when the second back rest assembly is disposed on the first side of the seat frame, the second end of the frame of the second back rest assembly engages the first side of the seat frame and, when the second back rest assembly is disposed on the second end of the seat frame, the first end of the frame of the second back rest assembly engages the second side of the seat frame.
CROSS REFERENCE TO RELATED APPLICATIONS

This application claims the benefit under 35 U.S.C. 119(e) of U.S. Provisional application No. 60/355,778 filed Feb. 8, 2002.

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Number Name Date Kind
363661 McKelvey et al. May 1887 A
365025 Scarritt et al. Jun 1887 A
443301 Stienen Dec 1890 A
587022 Thomas Jul 1897 A
1157458 Thompson Oct 1915 A
1241951 Fremaux Oct 1917 A
2665744 Hodgson Jan 1954 A
5749623 Mistry et al. May 1998 A
6331033 Lau Dec 2001 B2
Provisional Applications (1)
Number Date Country
60/355778 Feb 2002 US