| 摘要 |
PROBLEM TO BE SOLVED: To increase output of an actuator by increasing the number of turns of a coil while avoiding an increase in size of the actuator of an active vibration control supporting device. SOLUTION: The actuator 41 of the active vibration control supporting device is equipped with a circular yoke 44, the coil 46 wound around the outer periphery of the yoke 44, and an armature 54 arranged reciprocatably on the inner periphery of the yoke 44 and connected to a movable member 28. When the coil 46 is energized and demagnetised, the armature 54 is relatively moved with respect to the yoke 44 and the movable member 28 is driven. Since a tapered part 44b and a ordinary part 44c of the yoke 44 are extended toward the movable member 28 and the movable member 28 is arranged on the inner peripheral part of the yoke 44, the output of the actuator 41 can be increased by increasing the number of turns of the coil 46 woundable around the outer periphery of the yoke 44, so that when the output of the actuator 41 is made as conventional, the actuator 41 can be made small in size. COPYRIGHT: (C)2007,JPO&INPIT |
