| 摘要 |
Vibration damping device (10, 56, 58, 76, 84) for vehicles includes: a rigid housing member (40, 60, 80, 88) having an accommodation space (46, 47, 72, 82, 86) and fixed to a vibrative member; and an independent mass member (50, 102) having a rigid mass body (52, 104) and an elastic body layer (54, 106) bonded on the outer surface of the rigid mass body. The independent mass member is non-adhesively disposed in the accommodation space such that an outer surface of the independent mass member is opposed to the inner surface of the housing member with a predetermined gap distance ( delta ) therebetween, to thereby permit displacement of the independent mass member relative to the housing member. The independent mass member and the housing member is brought into direct and elastic impact against each other at respective abutting surfaces in at least one vibrational input direction. The elastic body layer has a spherical outer surface so as to facilitate bouncing displacement of the independent mass member within the accommodation space. <IMAGE>
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