| 摘要 |
PROBLEM TO BE SOLVED: To secure the output and current responsivity of an actuator without increasing the dimension of an active vibration-insulating suspension. SOLUTION: The internal pressure of liquid chambers 24, 25, of which the volume changes because of the load inputed from outside, is controlled by an actuator 31. The actuator 31 energizes a coil 39 wound around the outer periphery of a fixed core 33 in a cylindrical shape, and makes a movable core 53 perform reciprocating vibration on an axis L. Since the end surface of the coil 39 on the liquid chamber 24, 25 side is inclined relative to the axis L so that the outside in the radial direction is brought closer to the liquid chamber 24, 25, the number of turns of the coil 39 and output can be increased without increasing the dimension in the axis L direction of the active vibration-insulating suspension M. When the number of turns of the coil 39 is set at the same number as before, the outer diameter of the coil 39 can be made smaller than ever before accordingly, and the overall length of the conducting wire of the coil 39 is reduced. Thus, resistance and an inductance are reduced, and the current responsivity is improved. COPYRIGHT: (C)2007,JPO&INPIT |
