| 摘要 |
PROBLEM TO BE SOLVED: To provide a planetary gear drive capable of remarkably restraining the generation of vibration and noise in driving as compared with a conventional one in relation to the planetary gear drive wherein an internal gear is relatively unrotatably housed in an output housing. SOLUTION: This planetary gear drive extracts device output to the outside by relatively unrotatably housing the internal gear 23. The engaging sound of a gear mechanism is restrained from being transmitted to the output housing 5 by interlaying damping members 8a and 8b between the internal hear 23 and the output housing.
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