| 摘要 |
PROBLEM TO BE SOLVED: To reduce power consumption without reducing the durability of an actuator which drives a movable member. SOLUTION: This active vibration isolating support device M for preventing transmission of vibration from an engine E to a vehicle body frame F has an electromagnetic actuator 29 which drives a movable member 20 to reciprocate it thus varying the volume of a liquid chamber 24. Because the shank 381 of an armature 38 driven by a coil 34 is supported by a bearing 36 in such a way as to be movable along an axis L, the coil 34 can be miniaturized with an air gapβminimized. Because the shank 381 of the armature 38 and the movable member 20 make point contact with each other at a contact portion P, deflection of the movable member 20 is prevented from being directly transmitted to the shank 381 of the armature 38, whereby the durability of the bearing 36 can be increased. |
