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:
Apr. 02, 2019
Filed:
May. 02, 2017
Fanuc Corporation, Yamanashi, JP;
Youhei Arimatsu, Yamanashi, JP;
FANUC CORPORATION, Yamanashi, JP;
Abstract
In a rotor member fixed by press-fitting to a rotary shaft part of an electric motor, the inner circumferential face of a sleeve part has an inner circumferential tapered face in which the inside diameter of the sleeve part continuously increases at a fixed ratio in a direction from a first end towards a second end. In addition, an outer circumferential face of the sleeve part has an outer circumferential tapered face in which the outside diameter of the sleeve part continuously decreases at a fixed ratio in a direction from the first end towards the second end in an axial-direction segment of the sleeve part in which at least the inner circumferential tapered face is present.