Collapsible backrest

Abstract

A collapsible backrest comprises a frame, at least one leg connected to the frame, and a webbing connected to the frame. The frame includes a first frame member, a second frame member, a third frame member, and a fourth frame member. The first frame member and the second frame member are spaced apart and the webbing is connected to and extends between the first frame member and the second frame member. The third frame member is hingedly connected to the first frame member, and the third frame member is releasably connected to the second frame member. The fourth frame member is hingedly connected to the second frame member, and the fourth frame member is releasably connected to the first frame member.

What is claimed is: 
     
         1 . A collapsible backrest which is moveable between an extended configuration and a collapsed configuration, the collapsible backrest comprising:
 a frame having a first frame member, a second frame member, a third frame member, and a fourth frame member;   at least one leg connected to the frame; and   a webbing connected to the frame, the first frame member and the second frame member being spaced apart and the webbing being connected to and extending between the first frame member and the second frame member, the third frame member being hingedly connected to the first frame member and the third frame member being releasably connected to the second frame member, and the fourth frame member being hingedly connected to the second frame member and the fourth frame member being releasably connected to the first frame member.   
     
     
         2 . The collapsible backrest as claimed in  claim 1  wherein the third frame member is movable between a position in which the third frame member is substantially perpendicular to the first frame member and a position in which the third frame member is substantially parallel to the first frame member. 
     
     
         3 . The collapsible backrest as claimed in  claim 1  wherein the fourth frame member is movable between a position in which the fourth frame member is substantially perpendicular to the second frame member and a position in which the fourth frame member is substantially parallel to the second frame member. 
     
     
         4 . The collapsible backrest as claimed in  claim 1  wherein the third frame member is releasably connected to the first frame member by a tongue and groove connection. 
     
     
         5 . The collapsible backrest as claimed in  claim 1  wherein the fourth frame member is releasably connected to the second frame member by a tongue and groove connection. 
     
     
         6 . The collapsible backrest as claimed in  claim 1  wherein there is a first leg pivotably connected to the first frame member and a second leg pivotably connected to the second frame member. 
     
     
         7 . The collapsible backrest as claimed in  claim 6  wherein the first leg is pivotable between a position in which the first leg extends angularly from the first frame member and a position in which the first leg extends substantially parallel to the first frame member, and the second leg is pivotable between a position in which the second leg extends angularly from the second frame member and a position in which the second leg extends substantially parallel to the second frame member. 
     
     
         8 . The collapsible backrest as claimed in  claim 6  further including a first strap extending between the first leg and the first frame member and a second strap extending between the second leg and the second frame member. 
     
     
         9 . The collapsible backrest as claimed in  claim 1  wherein the webbing is releasably connected to the first frame member and the webbing is releasably connected to the second frame member. 
     
     
         10 . The collapsible backrest as claimed in  claim 1  further including a handle to allow a user to carry the collapsible backrest when the collapsible backrest is in the collapsed configuration. 
     
     
         11 . The collapsible backrest as claimed in  claim 1  further including a strap to maintain the collapsible backrest is in the collapsed configuration. 
     
     
         12 . A collapsible backrest which is moveable between an extended configuration and a collapsed configuration, the collapsible backrest comprising:
 a frame having a first frame member, a second frame member, a third frame member, and a fourth frame member;   at first leg pivotably connected to the first frame member and a second leg pivotably connected to the second frame member, the first leg being pivotable between a position in which the first leg extends angularly from the first frame member and a position in which the first leg extends substantially parallel to the first frame member, and the second leg being pivotable between a position in which the second leg extends angularly from the second frame member and a position in which the second leg extends substantially parallel to the second frame member; and   a webbing connected to the frame, the first frame member and the second frame member being spaced apart and the webbing being connected to and extending between the first frame member and the second frame member, the third frame member being hingedly connected to the first frame member and the third frame member being releasably connected to the second frame member such that the third frame member is movable between a position in which the third frame member is substantially perpendicular to the first frame member and a position in which the third frame member is substantially parallel to the first frame member, and the fourth frame member being hingedly connected to the second frame member and the fourth frame member being releasably connected to the first frame member such that the fourth frame member is movable between a position in which the fourth frame member is substantially perpendicular to the second frame member and a position in which the fourth frame member is substantially parallel to the second frame member.   
     
     
         13 . The collapsible backrest as claimed in  claim 12  wherein the third frame member is releasably connected to the first frame member by a tongue and groove connection. 
     
     
         14 . The collapsible backrest as claimed in  claim 12  wherein the fourth frame member is releasably connected to the second frame member by a tongue and groove connection. 
     
     
         15 . The collapsible backrest as claimed in  claim 12  further including a first strap extending between the first leg and the first frame member and a second strap extending between the second leg and the second frame member. 
     
     
         16 . The collapsible backrest as claimed in  claim 12  wherein the webbing is releasably connected to the first frame member and the webbing is releasably connected to the second frame member. 
     
     
         17 . The collapsible backrest as claimed in  claim 12  further including a handle to allow a user to carry the collapsible backrest when the collapsible backrest is in the collapsed configuration. 
     
     
         18 . The collapsible backrest as claimed in  claim 12  further including a strap to maintain the collapsible backrest is in the collapsed configuration.