| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid sealed type vibration isolation device capable of improving a vibration isolation performance of a second orifice.SOLUTION: A communication hole 21a is formed through a valve member 20, and liquid flows in a second orifice 45 through the communication hole 21a from openings 12b, 16a. Radial length L1 of a valve part 23 is set to not more than 1/3 of radial length L2 of a flexible membrane part 21. Therefore, while the openings 12b, 16a are under an opening state, a distance of the valve part 23, a bottom part 12 and a lid member 16 can be made large. As a result, an energy loss of liquid in a valve accommodation chamber 40 can be made small. Therefore, deterioration of an active characteristic of a liquid sealed type vibration isolation device 1 due to a loss by the valve accommodation chamber 40 can be prevented, so as to improve a vibration isolation performance of the liquid sealed type vibration isolation device 1. |
