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.

Date of Patent:
Aug. 18, 2020

Filed:

May. 31, 2018
Applicant:

Fanuc Corporation, Yamanashi, JP;

Inventors:

Shinobu Takano, Yamanashi, JP;

Takafumi Kajiya, Yamanashi, JP;

Kaname Matsumoto, Yamanashi, JP;

Assignee:

FANUC CORPORATION, Yamanashi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/27 (2006.01); H02K 1/28 (2006.01); H02K 15/03 (2006.01); H02K 1/20 (2006.01); H02K 5/20 (2006.01);
U.S. Cl.
CPC ...
H02K 1/28 (2013.01); H02K 1/20 (2013.01); H02K 1/278 (2013.01); H02K 15/03 (2013.01); H02K 5/20 (2013.01); H02K 2213/03 (2013.01);
Abstract

A rotor includes a rotary member, a plurality of permanent magnets disposed on an outer circumference of the rotary member, and a cover tube that is mounted to outer circumference of the permanent magnets to cover the permanent magnets, and is formed of a fiber reinforced plastic. At least one of the rotary member and the permanent magnets has a diameter enlarged portion having a diameter enlarged circumferential surface. The diameter enlarged portion has a diameter that enlarges from a first diameter region to a second diameter region. The first diameter region has a diameter equal to or less than an inner diameter of the cover tube. The second diameter region has a diameter equal to or more than an outer diameter of the permanent magnets.


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