| 摘要 |
PROBLEM TO BE SOLVED: To obtain a resin rotor in which a crack is not generated by a method wherein a ring magnet and a core which is provided with an output gear and a shaft integrally are molded respectively separately, and the core is fitted to the ring magnet so as to be integrated. SOLUTION: Claws 8b are made to protrude from the other end of a core 8 into which a polyacetal resin is injected and in which an output gear 10 is molded integrally. The claws 8b are fitted to a plurality of cut and removed parts which are formed at the other end of a ring magnet. The ring magnet and the core 8 are fixed in the circumferential direction so as to be integrated. Then, it is possible to prevent the ring magnet from being deviated to the direction of a flange 8c by using the flange 8c which is projected more largely in the circumference than the inside diameter of the ring magnet. In addition, coupling claws 9a are formed so as to protrude at the free end of a tongue 9 in which cutouts are formed on one end of the core 8 so as to be flexible, and they are regulated at the other end in the axial direction. As a result, a resin rotor in which a crack is not generated can be formed.
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