| 摘要 |
PROBLEM TO BE SOLVED: To realize a low dynamic spring in an intermediate/high frequency region of a liquid-sealed bush. SOLUTION: A liquid-sealed bush is constituted by an outer/inner cylinder 1, 2 and an elastic member 3 and in an intermediate part of the elastic member 3, a recessed part 4, 5 is formed as a liquid chamber. The elastic member 3 between the recessed parts 4, 5 serves as a partitioning member 6 and a thin thickness part 6a is formed in the partitioning member 6 by producing a lightening hole 7 and an outer edge part of the partitioning member 6 is non- connected in adhesion relating to an inner side of the outer cylinder 1. In the recessed part 5, an intermediate/high frequency device 14 supported to the inner cylinder 2 is provided. By overlapping a peak of film resonance by a thin thickness part 7 of the partitioning member 6 with a minimum value by a liquid column resonance of the intermediate/high frequency device 14, an intermediate/ high frequency region can be made to be a low dynamic spring. |
