| 摘要 |
A partition element 40 which partitions a first liquid chamber 36A and a second liquid chamber 36B is constituted of an annular orifice forming member 44, an elastic wall 46 which blocks a space formed within an inner peripheral surface 44A, and a pair of partition plates 48, 50 which sandwiches the elastic wall in the axial direction of the elastic wall 46. In at least one of the partition plates 48, 50, a through hole 80 which penetrates the partition plate in the axial direction X is formed on a radially outer Ko side of a connecting portion 56. Due to such a constitution, at the time of inputting of minute amplitude vibrations, a liquid flow is generated in the through hole 80 formed in the partition plate so that the through hole 80 is operated as a high-frequency orifice flow passage.
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