| 摘要 |
PURPOSE:To effectively damp vibration in a wide frequency region and prevent excessive liquid pressure from acting upon a partition body at the input time of large impact force. CONSTITUTION:A support cylinder body 1 is disposed with the upper part facing the vibration generating source side and with the lower part facing the vibration receiving part side. The support cylinder body 1 is connected to an upper fitting member 3, connected to the vibration generating source side, by an elastic support body 4. A lower fitting member 2 connected to the vibration receiving part side is connected to the lower part of the support cylinder body 1. Liquid L is filled into a liquid chamber 11 partitioned by the elastic support body 4 and the support cylinder body 1. A partition body 5 for partitioning the liquid chamber 11 into a pressure chamber 12 and a balance chamber 13 is disposed in such a way as to be relatively movable in the vertical direction in relation to the support cylinder body 1. The partition body 5 is provided with a limiting passage 17 for communicating the pressure chamber 12 with the balance chamber 13. A driving means 6 is direction according to input vibration, and a buffer member 7 partitioning the pressure chamber 12 vertically and having a throttle hole 7e piercing vertically is provided being elastically supported to the support cylinder 1. |
