| 摘要 |
PROBLEM TO BE SOLVED: To provide an electromagnetic drive mechanism capable of obtaining stable vibration operation of a vibrator. SOLUTION: This electromagnetic drive mechanism A consists of an electromagnet 1 composed of an iron core 29 constituted by laminating a plurality of stator cores 28 having an outer peripheral frame 26 and a pole part 27 formed by opposing to the inside of the outer peripheral frame 26 and a winding coil 30 wound around the pole part 27 of the iron core 29 and a vibrator which is arranged in the electromagnet 1 through a clearance part and is provided with a pair of permanent magnets 3a. In this case, both of an inside diameter face 31 of the pole part 27 and an outside diameter faces 36 of a pair of permanent magnets 3a are cylindrical faces, and the polarity in the peripheral direction of a pair of permanent magnets 3a is magnetic poles (N-pole, S-pole) magnetized in pole anisotropy. |
