| 摘要 |
PROBLEM TO BE SOLVED: To provide a stepping motor incorporating a position detecting part for detecting the rotational position accurately through a simple structure. SOLUTION: A stepping motor 1 comprises a stator 3 containing a field coil 3a, and a rotor 5 having a magnet part 4 facing the stator internally. A photosensor 6a constituting a rotational position detecting means 6 and a detecting body 10 thereof are disposed on the inside of the rotor 5. Optical axis A of the photosensor 6a is set in the radial direction and the detecting body 10 is formed at a specified radial position of the rotor 5. The rotor 5 is an integrally molded member including the detecting body 10. |
