| 摘要 |
PROBLEM TO BE SOLVED: To securely retain the external fitting of a rotor magnet to a cylinder without a secular change, assuming using a permanent magnet (rotor magnet) to a rotor, sharply improve the reliability. SOLUTION: In a motor constituted of a rotor 45 fittedly mounted on a rotation spindle part 9Z, and a stator, arranged at a given interval to the outer peripheral surface of the rotor to be fittedly fixed to a closed case; the rotor 45 is equipped with a rotor yoke part 50 fittedly mounted on the rotation spindle part to form a flat surface part 50a at the outer peripheral surface of the spindle part, and a magnet 51 having a flat surface part of a rotor yoke part at the inner peripheral surface of the york part 50, to be fittedly engaged with the outer peripheral surface of the rotor yoke. |
