Patent ID: 8070232

Claim:
A wheelchair assembly comprising: a main body having a seat, a foot rest positioned forward of said seat, a front wheel set and a rear wheel set; a pair of chair back supports arranged in spaced relation to a back of said seat; a pair of chair backs arranged in side-by-side relation at said back of said seat; a pair of connecting frames respectively connecting said pair of chair backs to said pair of chair back supports; a pair of elastic supports respectively interposed between a back surface of said pair of chair backs and said pair of connecting frames; a pair of guide frames respectively adjustably positioned on said pair of connecting frames, the elastic support being pivotally connected by a ledge to the guide frame; and a pair of regulating members respectively attached to said pair of guide frames and respectively cooperative with said pair of connecting frames so as to fix a position of the guide frame on the connecting frame, the connecting frame having a plurality of holes formed therethrough in spaced relation, the regulating member having a locking button, said locking button having a stud suitable for engaging one of said plurality of holes.