Patent ID: 8162121

Claim:
A clutch actuator device of a saddle-ride-type vehicle, comprising: a master cylinder which generates oil pressure; a clutch release cylinder which performs an engagement/disengagement operation of a clutch upon reception of the oil pressure transmitted from said master cylinder by a hydraulic pipe; an actuating mechanism which drives said master cylinder to automatically perform the engagement/disengagement operation of said clutch, a power transmission member which transmits an operational force of a clutch lever or a drive force of said actuating mechanism to said master cylinder, and a first operation quantity detector which detects an operation quantity of said power transmission member, wherein said first operation quantity detector is disposed on an opposite side of a rotary shaft supporting a worm wheel with respect to a second operation quantity detector, said rotary shaft being sandwiched between said first operation quantity detector and said second operation quantity detector in the axial direction.