| 摘要 |
PROBLEM TO BE SOLVED: To improve a degree of freedom of adjustment between cancel performance in a first centrifugal hydraulic cancel chamber of a first clutch and cancel performance in a second centrifugal hydraulic cancel chamber of a second clutch which is arranged around the first clutch.SOLUTION: At an internal peripheral face of an inner cylinder part 403 of a clutch drum 400 of a clutch C4 which constitutes a drum member together with a clutch drum 300 of a clutch C3, there are formed in a circumferential direction at intervals: a cancel chamber recess 403c which communicates with a cancel chamber oil passage 402y communicating with a centrifugal hydraulic cancel chamber 308 of the outside clutch C3 while extending to a radial direction, and a cancel chamber supply oil passage 234; a cancel chamber oil hole 403y which is formed at the cylinder part 403 so as to communicate with a centrifugal hydraulic cancel chamber 408 of the inside clutch C4; and a cancel chamber recess 403d which communicates with the cancel chamber supply oil passage 234. |
