Patent ID: 7294076
Filing Date: 2007-11-13
Classification: B62K,B62M

Abstract:
1. A transmission device for a bicycle comprising: a crankshaft; an output shaft rotatably connected to a driving wheel of the bicycle; a driving rotating member rotationally driven by the crankshaft; a multi-stage driven rotating member having a plurality of rotating elements drivingly connected to the output shaft, wherein said driven rotating member is constantly engaged with and rotated with said output shaft; an endless transmission belt engaged with said driving rotating member and said driven rotating member; a transmission change-over mechanism for repositioning said endless transmission belt among said plurality of rotating elements; and a one-way clutch for transmitting a rotation of said crankshaft in a normal rotating direction to said driving rotating member, wherein said one-way clutch is arranged in a power transmission path extending from said crankshaft to said driving rotating member, wherein said driving rotating member and said one-way clutch are arranged coaxially with said crankshaft and at positions where they do not overlap each other in a direction (A