| 摘要 |
PROBLEM TO BE SOLVED: To provide a small motor with a reverse rotation preventing device, using the preventive device with reliability in operation and a small change due to aging. SOLUTION: A rotor 1 has a rotor magnet 1c with multi-polarization and a fitting projected member 1b is formed on the lower face thereof. A slider 16 has a torque generating member 16a and a pin hole 16b with a long hole. A reverse rotation preventing lever 3 has a reverse rotation preventing nail 3a, and a cylindrical guide pin 3b, and the guide pin 3b is inserted in the pin hole 16b. When the rotor 1 is rotated in the reverse (B) direction, magnetic force (attractive force) is generated between a rotor magnet 1c and the torque generating member 16a, and the slider 16 is rotated in the B direction. Then, the reverse rotation preventing lever 3 is rotated in the B direction, so the reverse rotation preventing pawl 3a collides with the fitting projected member 1b, and the rotor 1 is turned and rotated in the forward (A) direction through reactive force of collision.
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