ELECTROMAGNETIC TYPE LINEAR ACTUATOR AND COMPOSITE TYPE LINEAR ACTUATOR

摘要

PROBLEM TO BE SOLVED: To provide an electromagnetic type linear actuator (composite type linear actuator) whose air core coil can be easily mounted on a mounting part.;SOLUTION: An electromagnetic linear actuator is configured of fixing parts (42, 43, 48, 49, 60) and a movable part (30) linearly moving to the fixing parts to an axial direction with an electromagnetic force. The fixing parts are provided with yokes (62, 63) and a magnet (61), and the movable part includes an air core coil (35). The air core coil (35) is fixed by resin (323). The portion of the air core coil (35) faced to the magnet (61) is not provided with any resin (323). The air core coil (35) is fixed with resin (323) by outsert molding. The movable part is provided with a head holder (32) made of resin for holding a head (31), and the air core coil (35) is integrally formed with the head holder (32) by outsert molding.;COPYRIGHT: (C)2004,JPO