Patent ID: 6588564
Filing Date: 2003-07-08
Classification: B60B

Abstract:
Hub, for bicycles havinga hub axle, a hub housing arranged essentially concentric to said hub axle, at least one bearing means comprising at least two bearings and which is arranged essentially between said hub axle and said hub housing so that said hub housing is mounted rotatably relative said hub axle, a rotor mounted rotatably relative said hub axle which is configured such that at least one gearwheel may be arranged thereon, a freewheel device arranged between said rotor and said hub housing and comprising two toothed discs, their toothed surfaces pressed together by means of a pre-tensioning device, wherein said two toothed discs are arranged essentially concentric to said hub axle and upon said hub being assembled accordingly are arranged substantially in a plane perpendicular to an axial line of said hub axle, at least in the state of rest, and wherein said toothed discs are retained in a floating mounting so that a tilting perpendicular to said axial line of said hub axle in relation to the plane is possible, and wherein said pre-tensioning device comprises at least two springs, and wherein said pre-tensioning device urges each of said adjacent two toothed discs together from both exterior sides with at least one respective spring.