| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a clutch structure for surely performing quick operation of a clutch piston, by restraining the deterioration in oil discharge performance from canceller chambers. <P>SOLUTION: This clutch structure of a hydraulic clutch 44 includes a rotary shaft 41C rotatably supported by a crankcase 32 and the clutch piston 80 coaxially arranged with the rotary shaft and switching a clutch-OFF state and a clutch-ON state in response to the axial directional movement, wherein control oil pressure chambers 86A and B and the canceller chambers 87A and B are formed on both surfaces in the axial direction of the clutch piston. Clutch outers 71A and B are integrated into clutch hubs 72A and B fitted to the rotary shaft. The clutch piston slides in the axial direction between the clutch hubs and the clutch outers. The canceller chambers are formed between the clutch piston and a wall member 82 arranged between the clutch hubs and the clutch outers. A discharge oil passage 100 for communicating the inside and outside of the canceller chambers is arranged in the clutch hubs, separately from supply oil passages 93 and 96 to the canceller chambers. <P>COPYRIGHT: (C)2012,JPO&INPIT |
