| 摘要 |
PCT No. PCT/JP88/00036 Sec. 371 Date Sep. 9, 1988 Sec. 102(e) Date Sep. 9, 1988 PCT Filed Jan. 19, 1988 PCT Pub. No. WO88/05511 PCT Pub. Date Jul. 28, 1988.A lockup damper, in which an approximately disc-like piston (28) having a convex portion current toward a front cover (12) is provided freely slidingly in its axial direction. A retaining plate (38) and a side plate (40) for holding coil springs (36) are provided on the piston (28). Spring seats (44) and (50) compressing the coil springs (36) are formed on the retaining plate (38) and the side plate (40). A power transmitting driven plate (30) having axially projecting claws extending in between the coil springs (36) is provided. Therefore the lockup damper is simple in its construction, light in its weight, cheap in its manufacturing cost, and is suitable for a torque converter having the convex type front cover (12).
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