| 摘要 |
PROBLEM TO BE SOLVED: To provide a stator of a stepping motor which can prevent the positional deviation of pole teeth of a stator core to a coil bobbin in a circumferential direction while facilitating assembling. SOLUTION: The stator of the stepping motor includes the coil bobbin 21, and the stator core 23. The coil bobbin 21 has a cylindrical part 21a in which a winding is wound on the outer periphery. The stator core 23 has an annular disk 23a arranged along the axial end (flange 21b) of the coil bobbin 21 and a plurality of pole teeth 23b in the circumferential direction extending axially along the inner peripheral surfaces of the cylindrical part 21b from the radial inside end of the annular disk 23a. A specifying part 21d for specifying the circumferential movement of the pole teeth 23b engaged with the pole teeth 23b in the circumferential direction is provided on the inner peripheral surface of the cylindrical part 21a. Moreover, a cutout recessed in the circumferential direction is provided on the pole teeth 23b. An engaging part engaged with the cutout is provided on the specifying part 21d. COPYRIGHT: (C)2006,JPO&NCIPI
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