| 摘要 |
<p>A vibration-isolating device having improved sealing ability and whose spring constant can be changed in a moment to quickly increase it. An intermediate tube (16) is fitted on the inner peripheral surface of an outer tube fitting (12), and an installation fitting (22) and the intermediate tube (16) are elastically connected by a rubber elastic body (24). A circular tube section (36A) of a yoke forming member (36) is placed in the intermediate tube (16), at a position on its inner peripheral side, and a coil (46) is placed between the intermediate tube (16) and the yoke forming member (36). A pressure receiving liquid chamber (40), a portion of the inner peripheral surface of which liquid chamber is formed from the rubber elastic body (24), and a sub-gas chamber (42) elastically deformable by a diaphragm (38) are interconnected via an orifice (44) to enable magnetically responsive fluid to flow between each other. A yoke section (36C) is placed on the inner peripheral side of the circular tube section (36A) such that the yoke section (36C) is located in a magnetic path produced when electricity flows through the coil (46).</p> |
