| 摘要 |
PROBLEM TO BE SOLVED: To secure the characteristic of a vibration isolating device even though the creep of an elastic body is increased with the lapse of time. SOLUTION: This vibration isolating device has an elastic body 16 to connect an outer tube member 11 and a center member 17, a pressure receiving liquid chamber 28, an auxiliary liquid chamber 29 provided inside the above outer tube member, and a membrane rubber 26 provided between the pressure receiving liquid chamber 28 and the auxiliary liquid chamber 29; and it is composed to furnish a partition wall member 36 to separate both liquid chambers, diaphragm 23 which consists of an elastic membrane to compose a part of the partition of the auxiliary liquid chamber 29 being provided opposing to the membrane rubber 26, a limit passage 30 to communicate the pressure receiving liquid chamber 28 and the auxiliary liquid chamber 29, and a partition plate member 24 having a communication hole 24c communicating between the both sides, as well as to partition the auxiliary liquid chamber 29 into the membrane rubber 26 side and the diaphragm 23 side. A convex 32 projecting at the auxiliary liquid chamber 29 side is provided to the diaphragm 23, so as to make the diaphragm 23 allowable to abut to the partition plate member 24 without blocking the communication hole. |
