| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluid sealed vibration control device of simple and highly practical novel structure, which can suppress occurrence of abnormal noise or shocks caused by cavitation, by quickly eliminating excess negative pressure generated in a pressure receiving chamber in inputting a large vibration load. SOLUTION: A through hole 42 is formed in a partition wall part 24 partitioning between a pressure receiving chamber 36 and an equilibrium chamber 38, and a closing member 44 overlapped with the partition wall part 24 from a pressure bearing chamber 36 side so as to close the through hole 42 in a fluid-tight manner and separated from the partition wall part 24 so as to bring the through hole 42 in a communicating state. Urging force transmitting parts 52, 54 extending from the closing member 44 to an equilibrium chamber 38 side to the outside through a flexible film 28, are provided, so as to apply an urging force of an urging means 62 disposed to the outside of the equilibrium chamber 38 to the closing member 44 through the urging force transmitting parts 52, 54, and the overlapped state of the closing member 44 with the partition wall part 24 is maintained by the urging force. COPYRIGHT: (C)2008,JPO&INPIT |
