| 摘要 |
PROBLEM TO BE SOLVED: To provide an oscillation planetary gear train easily securing an arrangement space for piping, wiring or the like in the center of the device according to a use purpose, and further smoothing power transmission.SOLUTION: The oscillation planetary gear train 100 for oscillating and rotating internal oscillators 116A1, 116B, which are oscillating gears, through eccentric bodies arranged respectively on a plurality of eccentric body shafts includes: an eccentric body shaft gear 112 incorporated to each of the plurality of eccentric body shafts, an transmission external gear 110 with which the plurality of eccentric body shaft gears 112 are simultaneously meshed; and an intermediate shaft 108 arranged at a position different from the rotating center axis of the transmission external gear 110 in parallel thereto, to which an intermediate pinion 130 that is a drive source-side pinion is incorporated. The intermediate shaft 108 is rotationally driven to rotate the intermediate pinion 130, whereby the eccentric body shafts are rotated through the external gear 110, and the intermediate pinion 130, the external gear 110 and the plurality of eccentric body shaft gears are meshed on the same plane. |
