Portable knock-down laterally extensible bench seat

Abstract

A portable knock-down seat which telescopically extends laterally to become a bench for use by sportsmen, as a shower chair, as a patient transfer bench, or as a stool. The portable seat comprises a laterally extendable telescopic bottom, a detachable and laterally extendable telescopic back, two detachable and vertically adjustable telescoping leg assemblies, and detachable armrests. The portable seat may be transported in a carrying bag or backpack, or by using straps.

1 . An expansible portable bench seat comprising:
 a laterally extensible seat bottom comprising at least two seating platforms telescopically interconnected to alter the width of the seat bottom;   a laterally extensible seat back removably attachable to the seat bottom, the laterally extensible seat back comprising at least two back rest portions telescopically interconnected to alter the width of the seat back and a means for removably attaching the seat back to the seat bottom;   at least two detachable telescoping leg assemblies removably attachable to the seat bottom, the leg assemblies each comprising at least two substantially vertical leg sections telescopically interconnected to alter the height of the leg assembly and therefore alter the height of the seat bottom, the seat bottom and the seat back and the leg assemblies removably interconnectable to form an expansible portable bench seat, and a means for removably attaching each of the telescoping leg assemblies to the seat bottom;   a pair of detachable armrests each attachable to the seat bottom at opposite ends of the seat bottom and a means for removably attaching each of the armrests to the seat bottom;   a means for carrying the portable expansible bench seat with the seat bottom, the seat back, the leg assemblies and the armrests disconnected from each other and positioned in parallel alignment for transporting and storing.   
   
   
       2 . The expansible portable bench seat of  claim 1  wherein the seat bottom comprises three substantially horizontal aligned bottom seating platforms comprising two outer seating platforms each having an outer end portion forming an end of the bench seat, the ends of the bench seat having a means for receiving the seat back, a means for receiving the leg assemblies and a means for receiving the armrests, and at least one middle seating platform intermediate the outer seating platforms, the middle seating platform telescopically interconnected to at least one of the two outer seating platforms to alter the width of the seat bottom. 
   
   
       3 . The expansible portable bench seat of  claim 1  wherein the seat back comprises at least two substantially horizontal back support elongated elements in substantially vertical spaced alignment, each of the at least two back support elongated elements having at least two back rest portions telescopically interconnected to alter the width of the seat back, and at least two substantially vertical supports interconnecting the horizontal back support elongated elements, one vertical support at each end of the seat bottom, wherein a bottom end of the vertical support removably inserted in a mating opening in the seat bottom. 
   
   
       4 . The expansible portable bench seat of  claim 1  comprising two detachable telescoping leg assemblies removably attachable to the seat bottom, one at each end of the seat bottom, the leg assemblies each comprising a substantially vertical upper leg section comprising two vertical upper supports interconnected by at least one horizontal brace member, one of the upper supports attached to a front of a side edge of the seat bottom and the other of the upper supports attached to a back of the side edge of the seat bottom and a pair of substantially vertical lower leg sections each telescopically interconnected to an upper support member to alter the height of the leg assembly and therefore alter the height of the seat bottom, and a means for removably locking the lower support member to the upper support member at any of a variety of heights of the leg assembly. 
   
   
       5 . The expansible portable bench seat of  claim 4  wherein the means for removably locking the lower support member to the upper support member comprises a spring loaded pin in one member alternately engaged in one of a series of spaced holes connection between members. 
   
   
       6 . The expansible portable bench seat of  claim 1  further comprising an umbrella clamp removably attachable to the seat back at any of a variety of different locations along the length of the seat back, the umbrella clamp comprising a clamp for attachment to the seat back and an umbrella support comprising a series of rods interconnected together by pivot joints and adjustable elbows to allow for multiple angles, heights and positions of an umbrella attached thereto. 
   
   
       7 . The expansible portable bench seat of  claim 1  further comprising four short legs with rubber pads on a bottom end of the short legs to prevent sinking on soft ground, the short legs attachable to the seat bottom in place of the leg assemblies for use in low to the ground hunting. 
   
   
       8 . The expansible portable bench seat of  claim 1  further comprising a utility tray removably attachable to a top of the seat back by a pair of hooks hooked over the seat back so that the utility tray hangs down behind the seat back for storing items thereon. 
   
   
       9 . The expansible portable bench seat of  claim 1  further comprising a foot step removably attachable to the leg assembly so that a user may step on the foot step for reaching higher. 
   
   
       10 . The expansible portable bench seat of  claim 1  wherein the means for carrying the portable expansible bench seat comprises a carrying bag with a handle. 
   
   
       11 . The expansible portable bench seat of  claim 1  further comprising at least one seat rest pad attached to the seat bottom, at least one seat rest pad removably attached to the seat back and at least one arm rest pad removably attached to each of the arm rests.