REVOLVING ACTUATOR

摘要

PROBLEM TO BE SOLVED: To attain high efficiency. SOLUTION: This actuator consists of a movable member 3 in which the revolution with a prescribed radius is freely supported, and a stator 4 which is disposed along the circumscribed circle of the revolving locus of the movable member 3 and makes the movable member 3 revolve with magnetic force acting on the movable member 3, wherein a core 41 of the stator 4 consisting of the core 41 and a coil 42 wound around the core 41 clamps the outer periphery of the movable member 3 with non-contact. It is thus possible to keep a clearance between a portion to be energized next of the stator 4 and the movable member 3 constant.