| 摘要 |
PROBLEM TO BE SOLVED: To simplify a mechanism connecting a piston to a front cover in a lock-up device including the piston pushing a friction connection part of a friction plate against the front cover. SOLUTION: In the lock-up device 8, a drive plate 74 includes the friction connection part 74a arranged closely to a friction surface 11b and is capable of outputting torque to a turbine 22. A piston 75 is a disk shape member arranged between the front cover 11 and a turbine 22 and include pushing parts 75a arranged on a friction surface side and an opposite side of the friction connection part 74a, and can move in an axial direction by hydraulic pressure change. A piston connection mechanism 76 connects the piston 75 not rotationable relatively to the front cover 11 and movable in an axial direction. A seal mechanism 76 seals both sides in the axial direction at an inner circumference part of the piston 11. A damper mechanism 45 is arranged between the drive plate 74 and the seal mechanism 81 in a radial direction in a space between the front cover 11 and a turbine 22 in the axial direction. A piston connection mechanism 76 is arranged on an inner circumference side of the seal mechanism 81. COPYRIGHT: (C)2006,JPO&NCIPI
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