Patent ID: 6971717

Claim:
A backrest comprising: a molded support having a generally “U” shaped cross section with a plurality of adjustable straps attached to said molded support and extending across said “U” shaped cross section with each of the plurality of straps being adjustable to allow the strap to partially move into said “U” shaped section; each strap is attached to said molded support and extends through a buckle arrangement provided on a rear face of said molded support; each buckle arrangement is movable between a release position allowing adjustment of the length of strap across the “U” shaped section and a locked position, where the strap is locked, relative to the buckle arrangement; each strap also includes a bias arrangement automatically urging each strap in a direction to draw the strap across said “U” shaped section to an initial set position when the respective buckle arrangement is in a release position.