US 12,076,853 B2
Robot
Hiroaki Yamamoto, Yamanashi (JP)
Assigned to FANUC CORPORATION, Yamanashi (JP)
Appl. No. 18/042,420
Filed by FANUC CORPORATION, Yamanashi (JP)
PCT Filed Sep. 22, 2021, PCT No. PCT/JP2021/034769
§ 371(c)(1), (2) Date Feb. 21, 2023,
PCT Pub. No. WO2022/071057, PCT Pub. Date Apr. 7, 2022.
Claims priority of application No. 2020-163503 (JP), filed on Sep. 29, 2020.
Prior Publication US 2023/0356419 A1, Nov. 9, 2023
Int. Cl. B25J 19/00 (2006.01); F16H 57/04 (2010.01)
CPC B25J 19/0062 (2013.01) [F16H 57/0405 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A robot comprising:
a robot arm drive unit including a first arm, a second arm, and a speed reduction mechanism held between the first arm and the second arm, the robot arm drive unit being adapted for relative movement of the first arm and the second arm through the speed reduction mechanism;
a lubricant container provided in the robot arm drive unit and configured to contain a lubricant; and
a receiving member provided below a liquid surface of the lubricant in the lubricant container, the receiving member including a recessed section having a vertically upward recess shape; wherein
the receiving member is provided to correspond to at least one of the first or second arm, and is configured to swing with the at least one arm, and
iron particles passingly accumulated in the recessed section fall into the lubricant container when the receiving member moves in conjunction with swinging motion of the at least one arm.