Portable Back Rest

Abstract

A portable back rest is provided having a U-shaped frame formed from two vertical segments joined with a horizontal segment. Points on the end of each vertical segment are adapted to pierce and become submerged in soil or sand and hold the frame upright where the horizontal segment will support fabric such as a towel as a back support. Fins may be positioned adjacent the points on the ends of the vertical segments to further stabilize their engagement with soil or sand and provide a contact point for a foot during insertion.

What is claimed is: 
     
         1 . A portable back rest apparatus, comprising:
 a U-shaped frame having two vertical segments joined a respective first ends to opposing ends of a horizontal segment extending therebetween;   a pair of points, one each of said pair of points positioned at a respective distal end of one of said two vertical segments opposite a respective said first end;   said frame positionable to an engaged position extending generally upright from a support surface of soil or sand, with said pair of points in submerged positions therein; and   said horizontal segment adapted to support a middle portion of a fabric support elevated above said support surface, with at least one end portion of said fabric support positioned upon said support surface for a user to sit upon.   
     
     
         2 . The portable back rest apparatus of  claim 1 , additionally comprising:
 at least one fin positioned at or adjacent each said distal end of each of said two vertical segments, each said fin extending in a direction away from an engagement with an exterior surface of said vertical segment.   
     
     
         3 . The portable back rest apparatus of  claim 2 , additionally comprising:
 each said fin having a fin edge extending away from said vertical segment, said vertical edge defining a foot engagement position for a foot of said user, whereby a user may employ force from their foot to force said point on each respective vertical segment to said submerged positions.   
     
     
         4 . The portable back rest apparatus of  claim 1 , additionally comprising:
 said frame formed of said two vertical segments each in a removable engagement at said respective first ends, with said opposing ends of said horizontal segment.   
     
     
         5 . The portable back rest apparatus of  claim 2 , additionally comprising:
 said frame formed of said two vertical segments each in a removable engagement at said respective first ends, with said opposing ends of said horizontal segment.   
     
     
         6 . The portable back rest apparatus of  claim 3 , additionally comprising:
 said frame formed of said two vertical segments each in a removable engagement at said respective first ends, with said opposing ends of said horizontal segment.   
     
     
         7 . The portable back rest apparatus of  claim 4 , additionally comprising:
 a flexible elastic member extending through an axial passage of said frame running through each of said two vertical segments and said horizontal segment;   opposing ends of said elastic member connected at or adjacent respective said distal ends said pair of vertical segments; and   said flexible elastic member imparting a compressive bias to said two vertical segments in their removable engagement with said horizontal segment.   
     
     
         8 . The portable back rest apparatus of  claim 5 , additionally comprising:
 a flexible elastic member extending through an axial passage of said frame running through each of said two vertical segments and said horizontal segment;   opposing ends of said elastic member connected at or adjacent respective said distal ends said pair of vertical segments; and   said flexible elastic member imparting a compressive bias to said two vertical segments in their removable engagement with said horizontal segment.   
     
     
         9 . The portable back rest apparatus of  claim 6 , additionally comprising:
 a flexible elastic member extending through an axial passage of said frame running through each of said two vertical segments and said horizontal segment;   opposing ends of said elastic member connected at or adjacent respective said distal ends said pair of vertical segments; and   said flexible elastic member imparting a compressive bias to said two vertical segments in their removable engagement with said horizontal segment.   
     
     
         10 . The portable back rest apparatus of  claim 2 , additionally comprising:
 said engagement of each said fin with an exterior surface of a respective said vertical segment, being a collar surrounding said exterior surface, said collar engaged with a first end of said fin;   each said collar being slidably adjustable in position upon a respective said exterior surface of a said vertical segment to adjust a position of said in closer or further from a respective distal end; and   each said collar having a releasable connector to fix said collar in a chosen position upon the respective vertical segment to which it engages.   
     
     
         11 . The portable back rest apparatus of  claim 3 , additionally comprising:
 said engagement of each said fin with an exterior surface of a respective said vertical segment, being a collar surrounding said exterior surface, said collar engaged with a first end of said fin;   each said collar being slidably adjustable in position upon a respective said exterior surface of a said vertical segment to adjust a position of said in closer or further from a respective distal end; and   each said collar having a releasable connector to fix said collar in a chosen position upon the respective vertical segment to which it engages.   
     
     
         12 . The portable back rest apparatus of  claim 5 , additionally comprising:
 said engagement of each said fin with an exterior surface of a respective said vertical segment, being a collar surrounding said exterior surface, said collar engaged with a first end of said fin;   each said collar being slidably adjustable in position upon a respective said exterior surface of a said vertical segment to adjust a position of said in closer or further from a respective distal end; and   each said collar having a releasable connector to fix said collar in a chosen position upon the respective vertical segment to which it engages.   
     
     
         13 . The portable back rest apparatus of  claim 6 , additionally comprising:
 said engagement of each said fin with an exterior surface of a respective said vertical segment, being a collar surrounding said exterior surface, said collar engaged with a first end of said fin;   each said collar being slidably adjustable in position upon a respective said exterior surface of a said vertical segment to adjust a position of said in closer or further from a respective distal end; and   each said collar having a releasable connector to fix said collar in a chosen position upon the respective vertical segment to which it engages.   
     
     
         14 . The portable back rest apparatus of  claim 8 , additionally comprising:
 said engagement of each said fin with an exterior surface of a respective said vertical segment, being a collar surrounding said exterior surface, said collar engaged with a first end of said fin;   each said collar being slidably adjustable in position upon a respective said exterior surface of a said vertical segment to adjust a position of said in closer or further from a respective distal end; and   each said collar having a releasable connector to fix said collar in a chosen position upon the respective vertical segment to which it engages.   
     
     
         15 . The portable back rest apparatus of  claim 9 , additionally comprising:
 said engagement of each said fin with an exterior surface of a respective said vertical segment, being a collar surrounding said exterior surface, said collar engaged with a first end of said fin;   each said collar being slidably adjustable in position upon a respective said exterior surface of a said vertical segment to adjust a position of said in closer or further from a respective distal end; and   each said collar having a releasable connector to fix said collar in a chosen position upon the respective vertical segment to which it engages.