| 摘要 |
PROBLEM TO BE SOLVED: To provide a stepping motor in which a positional deviation of a stator core and a coil bobbin hardly occurs at an assembling time of the stator core and the coil bobbin so that occurrence of a characteristic abnormality, a vibration, a noise or the like can be suppressed and which is stable in quality. SOLUTION: The stepping motor M comprises stators A, B having the recess stator core 20 and the coil bobbin 30 arranged between the stator cores 22. The bobbin 30 has a pair of side plates 31, 32 having central holes, a body 33 for coaxially coupling the holes, a terminal mounting part 34 formed at the plate 31, and a winding 30a. The cores 20, 22 have stator yokes 20a, 22a, and poles 20b, 22b axially extended and having narrower width toward a distal end. The bobbin 30 has a pole containing part 39 of substantially the same shape as those of poles 20b, 22b formed on an inside face of the body 33 thereof. COPYRIGHT: (C)2003,JPO
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