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:
Feb. 09, 2021
Filed:
Jan. 09, 2018
Fanuc Corporation, Yamanashi, JP;
Satoshi Adachi, Yamanashi, JP;
FANUC CORPORATION, Yamanashi, JP;
Abstract
A horizontal articulated robot including a base; one or more arms, attached to the base so as to be capable of rotating horizontally; a ball screw spline shaft that is disposed at an end of the one or more arms and that supports a workpiece at one end of the ball screw spline shaft; a ball screw nut through which the ball screw spline shaft passes and which is driven; and two ball spline nuts configured to support the ball screw spline shaft passing through the ball spline nuts, respectively, on both sides of the ball screw nut interposed therebetween in a longitudinal axis direction. At least one of the ball spline nuts drives the ball screw spline shaft about the longitudinal axis with respect to the arms.