| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid-sealed type vibration isolation device which can prevent an unaging agent from liquating out of a vulcanized gum molded object. SOLUTION: A liquid sealing space comprising the vulcanized gum molded object 13 molded integrally with an upper holding member 11 and a diaphragm 14 fixed to a lower retaining member 12 is partitioned into upper and lower two chambers by a partitioning member 16 having an orifice 17. In the vulcanized gum molded object 13 and the diaphragm 14 which are in contact with a liquid 15 housed hermetically in the liquid sealing space, a coating film A is formed which is composed of a rubber composite containing at least one selected from a group comprising NBR, H-NBR, acrylic rubber, fluorocarbon rubber and IIR. COPYRIGHT: (C)2007,JPO&INPIT |
