| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a rotational fluctuation absorption damper with improved reliability.SOLUTION: A rotational fluctuation absorption damper of the invention includes: a pulley support ring 22 which is provided at a hub 1 or a member 21 at the hub 1 side, the pulley support ring 22 where multiple through holes 22d are opened at a predetermined interval in a circumferential direction; a pulley 4 which is supported by the pully support ring 22 so as to relatively rotate; and an elastic body 6 integrally molded with an area between an inward flange part 42 of the pulley 4 and a coupling angle 24 attached to the pulley support ring 22. Multiple seal parts 61 which are placed in close contact with the pulley support ring 22 and seal the through holes 22d are integrally provided with the coupling angle 24. The respectively seal parts 61 extend from the elastic body 6 in the circumferential direction at a predetermined interval.</p> |
