| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact motor with reduction gears which has a rotor, a stator, the reduction gears, a motor section and a reduction gear section integrally constituted, and a simple structure. SOLUTION: The planetary differential reduction gears and the rotor are integrally provided on an inner circumference of the rotor in the inner rotor motor. Alternatively, the planetary differential reduction gears and the rotor are integrally provided on an outer circumference of the rotor in the outer rotor motor. The reduction gears have first and second external gears 7a, 6a, and first and second internal gears 8a, 8b. The motor with the reduction gears obtains an arbitrary reduction gear ratio of 15-10,000 by a combination of the number of teeth in four gears. COPYRIGHT: (C)2008,JPO&INPIT
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