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:
Jul. 28, 2015
Filed:
Feb. 08, 2010
Shigenobu Kawakami, Tokyo, JP;
Hiroshi Narasada, Tokyo, JP;
Seiji Okuda, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
A coupling shaft includes: a boss portion; and a rotation detector mounting shaft portion that protrudes outward from the boss portion away from the motor shaft. An inner circumferential surface of a penetrating aperture disposed on a mounting member is an inclined pressing surface that is inclined relative to a shaft axis of the motor shaft such that an inside diameter of the penetrating aperture increases continuously toward the motor shaft. An inclined bearing surface that is inclined relative to a shaft axis of the coupling shaft is disposed on the boss portion so as to be formed into an annular shape around the shaft axis of the coupling shaft, and such that an outside diameter of the boss portion increases continuously toward the motor shaft. The inclined pressing surface is able to contact the inclined bearing surface by the mounting member being displaced toward the motor shaft.