The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 2026
Filed:
Jul. 28, 2021
Fanuc Corporation, Yamanashi, JP;
FANUC CORPORATION, Yamanashi, JP;
Abstract
A robot system includes a robot that includes one or more joints, and a determination unit that is connected to the robot. The joints each include a motor, a speed reduction mechanism that reduces a speed of revolution of the motor; and a torque sensor capable of measuring an output torque of the speed reduction mechanism. The speed reduction mechanism includes a plurality of speed-reduction elements each of which reduces the speed of revolution of the motor at a predetermined reduction ratio. The determination unit calculates time-series data about an input torque to the speed reduction mechanism, and determines the speed reduction mechanism that has a problem, on the basis of time-series data about the number of revolutions of the motor, the calculated time-series data about the input torque, time-series data about the output torque measured by the torque sensor, and the reduction ratio of each of the speed-reduction elements.