Patent ID: 9580060
Date: 2017-02-28
CPC Classifications: B60W,F16D,Y10T

Claim:
1. A power transmitting apparatus comprising: an input member connected to an engine; a clutch housing rotatable together with the input member; a plurality of driving-side clutch discs mounted on the clutch housing; an output member; a clutch member connected to the output member; a plurality of driven-side clutch discs arranged between the driving-side clutch discs alternately therewith; a pressure member configured to force the driving-side clutch discs and the driven-side clutch discs to be press-contacted with each other and configured to release a press-contacting force acting on them in accordance with approach or separation of the pressure member relative to the clutch member; and a kick-starter means configured to apply a rotational force to the output member to start the engine by transmitting the rotational force to the engine via the clutch member, the power transmitting apparatus being configured to transmit a driving power of the engine inputted to the input member to the output member by press-contacting the driving-side clutch discs with the driven-side clutch discs or cut off the driving power of the engine inputted to the input member from the output member by releasing the press-contacting force acting on them; wherein the power transmitting apparatus further comprises a press-contact assisting cam of an inverse-driving side, the press-contact assisting cam configured to increase the press-contacting force acting on the driving-side clutch discs and the driven-side clutch discs by mechanically translating the rotational force applied to the output member by the kick starter means into the press-contacting force in a direction parallel to an axis of rotation of the output member.