초록 ▼

A lockup damper included in a lockup mechanism 8 of a torque converter 1 includes a piston member 9, a driven member 10, coil springs 13 and seat members 40. The coil spring 13 is arranged between the piston member 9 and the driven member 10. The seat member 40 is attached to the driven member 10, h

A lockup damper included in a lockup mechanism 8 of a torque converter 1 includes a piston member 9, a driven member 10, coil springs 13 and seat members 40. The coil spring 13 is arranged between the piston member 9 and the driven member 10. The seat member 40 is attached to the driven member 10, has a loose-fit portion 40c loosely fitted to the end of the coil spring 13, and restricts the radially outward movement of the end of the coil spring 13 by the loose-fit portion 40c fitted into the coil spring 13.

대표청구항 ▼

[ What is claimed is:] [5.]5. A lockup damper mechanism of a lockup mechanism in a torque converter, said lockup damper mechanism being provided for mechanically transmitting a torque from an input rotary member to an output rotary member, said lockup damper mechanism being operable to absorb and da

[ What is claimed is:] [5.]5. A lockup damper mechanism of a lockup mechanism in a torque converter, said lockup damper mechanism being provided for mechanically transmitting a torque from an input rotary member to an output rotary member, said lockup damper mechanism being operable to absorb and damp vibration transmitted from the rotary member to the output rotary member, said damper mechanism comprising:an input member selectively coupleable to the input rotary member for receiving transmitted torque, said input member having a holding portion;an output member outputting the torque to the output rotary member, said output member being fixed to said output rotary member;an elastic member having a coil-shaped form and being disposed between said input member and said output member, said holding portion of said input member being disposed radially outside said elastic member and being circumferentially engaged with said elastic member, said output member being circumferentially in contact with said elastic member; anda seat member having a first engagement portion engageable with said input member, a second engagement portion engageable with said output member, and a support portion circumferentially supporting said elastic member, and said seat member being operable to restrict radially outward movement of an end of said elastic member with at least one of said first and second engagement portions engaged with said input or output member,said first and second engagement portions being formed of three claws formed at the seat member and defining two grooves for loosely fitting said input and output members thereinto, respectively, andeach of said claws having an inclined surface forming a tip end having a converging, tapered shape.