| 摘要 |
A compact flat type vibrator motor is provided in which movement of the center is secured in a commutator itself, an additional eccentric member does not need to be arranged, and the number of parts are reduced, so that mass production thereof is possible. A plurality of commutator pieces are formed in a commutator base member formed of a printed wiring board in which high density resin of a specific gravity of 3 or more is added at at least a portion thereof. Simultaneously, a shaft receiving portion is formed at the central portion of the commutator base member. At least a high density resin portion is made eccentric so that an eccentric rotor is formed.
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