Patent ID: 8201677

Claim:
A clutch hydraulic system for a vehicle, comprising: a first clutch hydraulic oil passage which includes a clutch master cylinder for generating hydraulic pressure by motive power given thereto, and a clutch release cylinder to which hydraulic pressure is transmitted from said clutch master cylinder through said first clutch hydraulic oil passage and which disconnects a clutch; and a second manual hydraulic oil passage which includes a manual master cylinder operated manually to generate hydraulic pressure and a manual release cylinder operated by hydraulic pressure transmitted from said manual master cylinder through said second, manual hydraulic oil passage to thereby generate hydraulic pressure in said clutch master cylinder; a power transmitting member for transmitting motive power between said manual release cylinder and said clutch master cylinder; said clutch master cylinder and said second, manual hydraulic oil passage communicating with each other through a communicating passage through which oil flows; and a reservoir tank for reserving the oil for controlling the amounts of the oil in said first clutch hydraulic oil passage and said second, manual hydraulic oil passage, said reservoir tank being connected to said manual master cylinder, whereby the disconnecting of the clutch by motive power and disconnecting of the clutch manually can be operated independently.