| 摘要 |
A damper disc providing a sub-damper comprising a torsion spring compressively provided along a circumferential line at an outer peripheral portion of a flange of a hub, a circular arc weight concentrically and freely rotatably supported by the flange and an end portion thereof being pressed against an end face of the torsion spring, and a friction torque generating part provided between the flange and the weight.
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