| 摘要 |
PURPOSE:To aim at enhancing the vibration suppressing function by providing a support means for preventing a movable member from making close contact with the inner surface of a pressure receiving chamber so that vibration acting parts are formed having a predetermined gap, circumferentially of the movable member, during inputting of vibration between first and second support members. CONSTITUTION:When a vibration is inputted between first and second support fixtures 10, 14, a vibration acting part having a predetermined gap through which a flow of charge fluid is produced is formed circumferentially of a movable block 54 including a gap 58 in accordance with a deformation of the inner wall surface of a pressure receiving chamber 38 due to a resilient deformation of a rubber resilient member 26, a displacement of the movable block 54 or the like. In particular, since the movable block 54 is supported at an intermediate position on a tapered surface 56 so as to be prevented from making close contact with the inner surface of the pressure receiving chamber 38, it may effectively float in the pressure receiving chamber 38 due to the flow of the fluid or the like which is produced during inputting of vibration, and accordingly, the flow of the fluid therearound is advantageously produced. Thus, it is possible to exhibit an excellent vibration suppressing function over a wide frequency range. |
