| 摘要 |
PCT No. PCT/JP88/01202 Sec. 371 Date Aug. 2, 1989 Sec. 102(e) Date Aug. 2, 1989 PCT Filed Nov. 28, 1988 PCT Pub. No. WO89/05415 PCT Pub. Date Jun. 15, 1989.Disclosed is a friction device of a lockup clutch which comprises an annular and plate-shaped piston linking with pressure to the input portion of a torque converter, an annular driven plate linking to the turbine of the torque converter, and damper springs for coupling the piston and driven plate in the circumferential direction, in which a friction mechanism is disposed between the internal circumferential portion of the piston and the turbine hub, and this friction mechanism is provided with a first friction member not rotatable relative to the turbine hub and a second friction member not rotatable relative to the piston, and these two friction members are pressed to each other so as to produce friction in the friction members by the relative rotation of piston and turbine hub.
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