| 摘要 |
PROBLEM TO BE SOLVED: To enhance the detection accuracy of a rotational position, in a geared motor having a rotating member in which the rotational position is detected by a fixed magnet.SOLUTION: A geared motor 1 comprises: a magnet 20 inserted in a holding hole 13 formed in a rotating member 10 which rotates by the transmitted power of a motor 40; and detection means which has one or more detection members 30 that detect the magnet 20, and obtains the rotational position of the rotating member 10 by the detection of the magnet by the detection members 30. The rotating member 10 has deformation parts P formed therein, which protrude from inner wall surfaces 1331 and 1332 of the holding hole 13 located at one side in a rotation direction of the rotating member 10. The magnet 20 is in contact with inner wall surfaces 1341 and 1342 of the holding hole 13 located at the other side in a rotation direction of the rotating member 10, in such a state that the deformation parts P are deformed by the magnet 20 inserted in the holding hole 13. |
