US 12,140,212 B2
Rotating shaft structure comprising plurality of speed reducers, and manufacturing method therefor
Wataru Murakami, Yamanashi-ken (JP)
Assigned to FANUC CORPORATION, Yamanashi (JP)
Appl. No. 17/918,601
Filed by FANUC CORPORATION, Yamanashi (JP)
PCT Filed May 17, 2021, PCT No. PCT/JP2021/018656
§ 371(c)(1), (2) Date Oct. 13, 2022,
PCT Pub. No. WO2021/235399, PCT Pub. Date Nov. 25, 2021.
Claims priority of application No. 2020-090048 (JP), filed on May 22, 2020.
Prior Publication US 2023/0142018 A1, May 11, 2023
Int. Cl. F16H 37/12 (2006.01); B25J 17/00 (2006.01)
CPC F16H 37/122 (2013.01) [B25J 17/00 (2013.01)] 6 Claims
OG exemplary drawing
 
1. The rotating shaft structure comprising:
a first link;
a second link connected to the first link; and
a plurality of speed reducers positioned between the first link and the second link,
wherein one of a speed reducer side attachment hole and a first link side attachment hole configured to connect the speed reducer to the first link is larger than the other attachment hole or an elongate hole, further comprising a common drive shaft inserted in the plurality of speed reducers and configured to transmit drive power to the plurality of speed reducers, wherein a position of the speed reducer side attachment hole is displaced due to the insertion of the drive shaft further comprising a deceleration mechanism configured to transmit power to the drive shaft and a drive source configured to supply power to the deceleration mechanism, wherein a rotating shaft of the drive source is positioned parallel to the drive shaft.