| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a vibration isolator capable of being miniaturized in the axial direction of a first attachment member. <P>SOLUTION: The vibration isolator 1 includes the first cylindrical attachment member connected to one of a vibration generating part or a vibration receiving part, a second attachment member connected to the other, an elastic body elastically connected to both members, and a partition member 5 for partitioning a liquid chamber in the first attachment member into a main liquid chamber on one side and an auxiliary liquid chamber on the other side. The partition member includes a first limiting passage 21 communicating the main liquid chamber with the auxiliary liquid chamber and generating liquid column resonance with respect to the input of shake vibration, a second limiting passage 22 communicating the main liquid chamber with the auxiliary liquid chamber and having the flow resistance of liquid smaller than the first limiting passage and generating liquid column resonance with respect to the input of idle vibration, and a movable member 29 for switching the communication and shutting-off of the main liquid chamber and the auxiliary liquid chamber through the second limiting passage in accordance with fluctuation of liquid pressure in the main liquid chamber. The movable member is disposed movably along an orthogonal plane orthogonal to the axial direction of the first attachment member. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
