Patent ID: 8517469
Filing Date: 2013-08-27
Classification: A61G

Abstract:
1. A back support assembly for connection to transversely spaced apart canes of a wheelchair by which to support a back shell and back cushion against which a back and upper torso of a user of the wheelchair is positioned, comprising: a pair of mounting devices, each mounting device adapted for connection to a cane of the wheelchair; a pair of adjustment arms each having first and second opposite ends, the first ends of the adjustment arms connected respectively to the mounting devices to pivot with respect to the mounting devices; a pair of extension arms each having first and second opposite ends, the first ends of the extension arms connected respectively to the second ends of the adjustment arms to selectively pivot the extension arms relative to the adjustment arms and to rigidly maintain a selective pivot position of each extension arm relative to the connected adjustment arm, the second end of each extension arm having a predetermined cross-sectional configuration; a connecting structure having opposite hollow ends with openings into which the second ends of the extension arms are respectively inserted to telescope relative to the connecting structure, the opening having a complementary predetermined cross-sectional configuration corresponding to the predetermined cross-sectional configuration of the second end of each extension arm which is inserted into that opening; a back retaining clamp connected to the connecting structure to pivot selectively about the connecting structure; and a back shell connector connected to the back retaining clamp to move selectively vertically relative to the connecting structure, the back shell connector also adapted to connect to the back shell in a selected rotational position relative to the connecting structure.