| 摘要 |
PROBLEM TO BE SOLVED: To provide a revolving part structure of a robot or the like, simple in structure and inexpensive. SOLUTION: In the revolving part structure of a robot or the like, the driving turning force of a driving motor 50 is transmitted from an external gear 52 fixed to an output shaft 51 directly to an external gear 53 fixed to one specified crank pin 37a, thereby rotating the crank pin 37a of an eccentric differential speed reducer 17. As compared with the case of rotating the crank pin through a cylinder having an external gear at both ends by the rotary driving force of the motor, therefore, the external gear of the cylinder meshing with the external gear of the motor is eliminated, so that the structure is simplified and reduced in cost. COPYRIGHT: (C)2008,JPO&INPIT
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