| 摘要 |
PROBLEM TO BE SOLVED: To provide a clutch system of a vehicle in which the number of part items as the total system is reduced, and the piping man-hour is simplified in a system provided with both the manual operation system and the automatic operation system. SOLUTION: An input member 13 and a piston 14 are provided in a cylinder body 11 of a master cylinder 1, and the piston 14 is moved to a hydraulic pressure generating chamber 15 side through the input member 13 in the manual operation mode. In the automatic operation mode, the hydraulic pressure from a motor-driven type actuator 3 is supplied to an operating pressure chamber 19, and the piston 14 is moved to the hydraulic pressure generating chamber 15 side independently from the input member 13 to supply the hydraulic pressure to a working cylinder 2.
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