| 摘要 |
PROBLEM TO BE SOLVED: To enhance a low dynamic spring characteristic at an intermediate high frequency area. SOLUTION: A liquid chamber is formed by a first support member 1, a second support member 2 and an elastic member 3 and the inside of the liquid chamber is divided to a main liquid chamber 11 and a sub-liquid chamber 12 by a partition member 10. The main liquid chamber and the sub-liquid chamber are communicated by an orifice passage 14. A thin part 7 formed by a formation of a recessed part 6 is provided on an inner surface of a cone part 4 at a symmetrical position. The minimum value is imparted to a dynamic spring characteristic by a film resonance against a specific intermediate frequency vibration input. An intermediate high frequency device 17 projecting into the main liquid chamber 11 is provided on the first support member 1 and the minimum value is imparted to a specific high frequency vibration input. |
