Patent ID: 7854481

Claim:
A wheelchair back assembly for mounting to a pair of spaced apart laterally-aligned support posts of a wheelchair back frame, said back assembly comprising: a relatively rigid shell member; a mounting system for coupling said shell member to the wheelchair back frame, said mounting system comprising at least a first mounting bracket assembly, a second mounting bracket assembly, and a lateral member configured to be coupled to said first and second mounting bracket assemblies such that said lateral member extends from said first mounting bracket assembly to said second mounting bracket assembly, said first mounting bracket assembly configured to couple to a first of the wheelchair back frame support posts, said second mounting bracket assembly is configured to couple to the second of the wheelchair back frame support posts, said lateral member is selectively operable to uncouple said shell member from the wheelchair back frame; and a coupling system for removably coupling said shell member to said mounting system, said coupling system comprising a first coupler assembly configured to couple to said first mounting bracket assembly and a second coupler assembly configured to couple to said second mounting bracket assembly, said lateral member comprises at least one biasing member configured to bias said lateral member into coupling contact with at least one of said coupler assemblies.