Transmission device for two-wheeled motor vehicle

摘要

A transmission for a motorcycle has an input shaft, an output shaft, a plurality of speed change input gears, and a plurality of speed change output gears, and performs shifting by a shift mechanism. The speed change input gears are fixed to one of the input shaft and the output shaft, e.g., the input shaft, in the axial direction and about the axis, the speed change output gears are fixed to the output shaft in the axial direction and are fitted to be rotatable about the axis, and a plurality of slider rings for dog-coupling are fixed to the other shaft about the axis and are provided to be slidable in the axial direction. An engaging hole is formed in the slider rings, and the speed change gears on the other shaft are formed with an engaging projection which can engage with the engaging hole by the movement of the slider rings in the axial direction.

主权项

1. A transmission for a motorcycle, comprising:
an input shaft; an output shaft arranged in parallel with the input shaft; a plurality of speed change input gears on the input shaft; and a plurality of speed change output gears on the output shaft, the speed change output gears engaging with the speed change input gears, respectively, for allowing selection of a power transmission path via the speed change input gears and the speed change output gears between the input shaft and the output shaft for shifting; wherein all of the speed change input gears on the input shaft are fixed to the input shaft so as not to be movable in an axial direction of the input shaft; wherein all of the speed change output gears on the output shaft are fixed to the output shaft so as not to be movable in an axial direction of the output shaft; wherein a plurality of slider rings for dog-coupling are fixed to the output shaft about the axis of the output shaft and are slidable in the axial direction of the output shaft; and wherein engaging holes are formed in each of the slider rings, and each of the speed change output gears on the output shaft has engaging projections for engaging the engaging holes by a movement of the slider rings in the axial direction of the output shaft.