| 摘要 |
PROBLEM TO BE SOLVED: To provide a reduction gear having high power transmissibility though it is ultracompact. SOLUTION: In this reduction gear provided with a sun gear 3 directly connected with a rotating shaft 2a of a motor 2, a plurality of planetary gears 4 engaged with the sun gear 3, and an internal gear 8 engaged with the planetary gears 4, and having a center coaxially with a rotating shaft of the sun gear 3, in a housing 1a connected with a motor case 2b, the planetary gears 4 are revolvably retained, the internal gear 8 is rotatably retained, an output shaft 8a formed on the internal gear 8 is rotatably retained by the housing 1a, and a power transmitting structure 11a is integrally formed on the output shaft 8a. COPYRIGHT: (C)2007,JPO&INPIT
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