摘要 |
PROBLEM TO BE SOLVED: To provide a compact eccentric rocking type gear device capable of preventing the shortening of a the service life. SOLUTION: This eccentric rocking type gear device 100 has an internal tooth gear 3, a plurality of external tooth gears 9 having a plurality of through-holes 5 and a plurality of second through-holes in the axial direction and meshing with the internal tooth gear, a plurality of crankshafts 17 having transmission gears 11 and eccentrically moving the external tooth gears by making an eccentric part engaged with the respective first through-holes of the external tooth gears via a bearing, and a support 25 having a pair of end plates 19a and 19b juxtaposed in the axial direction, and a plurality of columns connecting the pair of end plates and loosely fitted to the respective second through-holes of the external tooth gears and rotatably supporting the crankshafts via the bearing, and relatively rotates the internal tooth gear and the support. The eccentric rocking type gear device is provided for storing the transmission gear of the respective crankshafts in first recessed parts by forming the first recessed parts 10 facing each other in the axial direction to any adjacent two external tooth gears among the plurality of external tooth gears. COPYRIGHT: (C)2009,JPO&INPIT
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