| 摘要 |
PURPOSE:To reduce vibration transmission ratio of high frequency vibration by play of a resistance plate by providing the resistance plate which can swivel with a supporting unit in viscous fluid charged in an elastic body and providing damping effect of low frequency vibration. CONSTITUTION:An elastic body 27 fit to an inner cylinder 25 and an outer cylinder 26 is provided on an outer circumference of a bearing 22 rotatably supporting a propeller shaft 21. In the elastic body 27, a fluid chamber 28 charged by viscous fluid is formed and in the fluid chamber 28, a supporting plate 29 and a resistance plate 30 mounted to the supporting plate 29 so as to swivel freely are provided. Then, damping effect of low frequency vibration can be obtained and an action similar to the case when the resistance plate 30 is removed by play of resistance plate 30 can also be obtained, and as the result, vibration transmitting ratio in high frequency range can be reduced. |
