| 摘要 |
PROBLEM TO BE SOLVED: To provide a stepping motor which can improve an accuracy by performing the positioning match of the first and second stators in a circumferential direction by one part. SOLUTION: The stepping motor includes first and second coils 4, 5 disposed at positions concentric with a magnet 1 and sandwiching the magnet from both axial ends, cylindrical first and second stators 2, 3 having tooth shape poles 2a-2e, 3a-3e extended axially and opposed to the magnet, and a cylindrical bobbin 9 made of an insulator wound with the first coil and the second coil. The bobbin 9 has engaging parts 9d, 9e engaged with the poles extended axially so that the relative positions of the first stator and the second stator in the circumferential direction become a predetermined positional relationship. COPYRIGHT: (C)2006,JPO&NCIPI
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