| 摘要 |
The present invention discloses a damper disc of a thin type comprising a central hub provided with a hub flange, two side plates coaxially disposed at both sides of the hub flange, and torsion springs engaged in openings provided respectively in the hub flange and the side plates to circumferentially elastically connect the hub flange and the side plates together, characterized in that the hub flange is provided with openings, in which both side plates are closely fixed together with circumferential spaces between the openings and the closely fixed portions of the side plates.
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