Patent ID: 7484609
Filing Date: 2009-02-03
Classification: B60B,F16D

Abstract:
1. A hub assembly for a bicycle which has a hub axle, comprising: a hub shell including a plurality of pawls which are disposed in said retreat bores, respectively, such that each of said pawls is movable between a driven position, where said pawls extend radially into said annular accommodation space, and an idle position, where said pawls retreat radially into said retreat bores; a chainring carrier which is adapted to be rotatably mounted on the hub axle; a surrounding drive member which is coupled with said chainring carrier, and which includes a shielding member including a rim which is configured to be fitted to and which is in water-tight engagement with said inner peripheral wall surface, and an annular flexible web body which extends from said rim in radial directions towards said annular ratchet segment, and towards said inner annular major surface to terminate at a tubular tail portion, said tubular tail portion surrounding said protrusion, and being configured to trail on and to be kept in frictional contact with said protrusion.