Bleacher cushion

Abstract

A seat cushion includes a cushioned bottom portion and a back portion. The back portion is flexibly connected to the bottom portion. An attachment mechanism is provided to attach the bottom portion to a bleacher. A constraint element restrains the back portion for rotating beyond a desired angle with respect to the cushioned bottom portion. The back portion does not include any rigid cross members.

1 . A seat cushion for removable attachment to a bleacher, the seat cushion comprising:
 a bottom cushioned portion adapted to set on an upwardly facing surface of a bleacher, the bottom cushioned portion having a bottom surface for resting on the bleacher;   an attachment member connected to the bottom surface of the bottom cushioned portion having a receiving portion adapted to removably receive an attachment mechanism above the upwardly facing surface of the bleacher for securing the bottom cushioned portion to a bleacher, the attachment mechanism comprising a first jaw for engaging a front portion of said bleacher, a second jaw for engaging a rear portion of said bleacher, and a tightening member for drawing said first and second jaws together to capture said bleacher between said first and second jaws;   a back portion flexibly connected to said bottom cushioned portion to rotate in a plane generally radial from the bottom cushioned portion when said bottom cushioned portion is secured to a bleacher; and   a flexible constraint element for preventing said back portion from rotating beyond a desired angle with respect to said bottom cushioned portion.   
   
   
       2 . The seat cushion according to  claim 1 , wherein said back portion is free from any rigid cross members. 
   
   
       3 . The seat cushion according to  claim 1 , wherein said flexible constraint element comprises a belt of adjustable length spanning between said bottom cushioned portion and said back portion. 
   
   
       4 . The seat cushion according to  claim 1 , wherein said flexible constraint element comprises a pair of belts; each of said belts being adjustable in length; each of said belts further spanning from said bottom cushioned portion to said back portion. 
   
   
       5 . The seat cushion according to  claim 1 , wherein:
 said bottom cushioned portion comprises a seat pad enclosed by a seat covering;   said back portion comprises a backrest pad enclosed by a backrest covering; and   said backrest covering and said seat covering are formed from a single piece of covering material, such that said single piece of covering material flexibly connects said back portion to said bottom cushioned portion.   
   
   
       6 . (canceled) 
   
   
       7 . The seat cushion according to  claim 1 , wherein said attachment member is a loop and wherein said attachment mechanism is slideable through said loop in a mating engagement. 
   
   
       8 . The seat cushion according to  claim 1 , further comprising a second constraint element between said attachment mechanism and said back portion to maintain said back portion in a generally upright orientation. 
   
   
       9 . The seat cushion according to  claim 8  wherein said second constraint element comprises a zip tie. 
   
   
       10 . A bleacher cushion assembly, the bleacher cushion assembly comprising:
 an attachment bracket for selective attachment to a bleacher;   a bottom cushioned portion having a bottom surface for resting on a surface of the bleacher,   an attachment member connected to the bottom surface and removably connecting said attachment bracket to provide a cushioned seating location on said bleacher;   a backrest portion flexibly connected to said bottom cushioned portion to rotate in a generally radial plane from the bottom cushioned portion to an upright seating position, said backrest portion having sufficient integral vertical support to maintain itself in a vertical orientation without collapse, and said backrest portion being free from rigid cross members; and   a flexible constraint element to prevent said backrest portion from rotating rearwardly beyond said upright seating position.   
   
   
       11 . The bleacher cushion assembly of  claim 10 , wherein said backrest portion comprises:
 a pair of laterally spaced apart risers;   a central cushioned portion between said risers; and   a backrest cover covering and binding together said risers and said central cushioned portion, said backrest cover further acting as a flexible connection between said backrest portion and said bottom cushioned portion.   
   
   
       12 . The bleacher cushion assembly of  claim 10 , wherein said flexible constraint element comprises a belt of adjustable length having a first end operably connected to said bottom cushioned portion and a second end operably connected to said backrest portion. 
   
   
       13 . The bleacher cushion assembly of  claim 10 , wherein said attachment bracket comprises:
 a front jaw, said front jaw including a front hook portion for engaging a front portion of said bleacher, a long horizontal leg extending from said hook portion to a location near a rear portion of said bleacher when said front jaw is in engagement with the front portion of said bleacher, and a generally upwardly extending rear leg;   a rear jaw for engaging a rear portion of the bleacher, said rear jaw including a generally upwardly extending leg in close proximity to said generally upwardly extending rear leg of said front jaw; and   a tightening member for drawing said generally upwardly extending legs together to secure said jaws to said bleacher.   
   
   
       14 . The bleacher cushion assembly of  claim 10 , wherein:
 said bottom cushioned portion comprises a seat pad enclosed by a seat covering;   said backrest portion comprises a backrest pad enclosed by a backrest covering; and   said backrest covering and said seat covering are formed from a single piece of covering material, such that said single piece of covering material flexibly connects said back portion to said bottom cushioned portion.   
   
   
       15 . The bleacher cushion assembly of  claim 10 , wherein said attachment bracket comprises:
 a first jaw for engaging a front portion of said bleacher;   a second jaw for engaging a rear portion of said bleacher; and   a tightening member for drawing said first and second jaws together to capture said bleacher between said first and second jaws.