| 摘要 |
PROBLEM TO BE SOLVED: To increase the rotational torque of a rotor by sliding a straight line, connecting the center of the rotor surface in which the rotor faces to the stator with the center of the rotor base, by a given angle to the straight line going outward in diametrical direction from the center of the facing part. SOLUTION: A rotor pole 12 is arranged so that a straight line L1 connecting the center of the rotor surface in which the rotor faces to the stator with the center of the base part 16a of a rotor 16 may be deviated by an angleθto the straight line L2 going outward in diametrical direction from the center of the facing part 12a. Hereby, in case that the direction of the circumferential component of this deviation and the rotational direction of the rotor 16 are the same, the rotational torque of the rotor 16 becomes large, and high torque can be obtained without increasing magnetic attraction.
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