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. 08, 2015
Filed:
Aug. 02, 2013
Fanuc Corporation, Yamanashi, JP;
Hidetoshi Uematsu, Yamanashi, JP;
Yasuo Kawai, Yamanashi, JP;
FANUC CORPORATION, Yamanashi, JP;
Abstract
An electric motor includes an insert member situated within an insert bore formed in a rotor in order to adjust a balance of the rotor. The insert member has a body part provided with a cutout portion in a part of its circumference to define a gap extending therebetween. The insert member also has a pair of inner protrusions protruding radially inwardly from the opposite side edges of the gap. The size of the gap is determined such that the gap is not closed when the insert member elastically deforms and as a result, the outer diameter of the insert member becomes smaller than the diameter of the insert bore.