Patent ID: 6346061
Filing Date: 2002-02-12
Classification: A61G

Abstract:
A wheelchair wheel hub (5), comprising: a planetary gear (4) having, a sun wheel (10), planet wheel and ring wheel (12); the hub (5) having a hub inner part (6) and a hub outer part (7), which parts are rotatably supported relative to one another, and are carried by a main shaft (13); the inner and outer hub parts (6, 7) are supported by means of supporting devices (14) acting around the periphery of the hub, which devices are so arranged to support the inner and outer hub parts (6, 7) radially relative to one another, and to provide axial (15) locking of the inner and outer hub parts (6, 7) relative to one another; the supporting device (14) is formed from a plurality of radial grooves (17, 18) extending around the periphery (16) of said inner and outer hub parts (6, 7); inside the radial grooves one of rolling devices (19) and a plain bearing component are arranged to act, in conjunction with the radial grooves (17, 18), arranged directly in line with one another on an internal envelope surface (2) of the outer part (7) of the hub and on an external envelope surface (8) of the inner part (6) of the hub when the inner and outer hub parts (6, 7) are assembled to form a wheelchair wheel hub (5).