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. 08, 2011
Filed:
Nov. 04, 2008
Hisashi Ishida, Maebashi, JP;
Tohru Yumoto, Kiryu, JP;
Masaki Ishizeki, Kiryu, JP;
Susumu Miyazaki, Niiza, JP;
Kazushi Hamaya, Iruma-gun, JP;
Hisashi Ishida, Maebashi, JP;
Tohru Yumoto, Kiryu, JP;
Masaki Ishizeki, Kiryu, JP;
Susumu Miyazaki, Niiza, JP;
Kazushi Hamaya, Iruma-gun, JP;
Mitsuba Corporation, Gunma, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A brushless motor according to the present invention is provided with a tubular stator case, a stator core fitted into the stator case, and a rotor rotatably supported via a bearing inside the stator core. The stator core includes a tubular yoke portion and a plurality of split cores which are detachably mounted on the tubular yoke portion. A plurality of commutating-pole teeth which extend radially inward are integrally formed on an inner peripheral surface of the tubular yoke portion at regular intervals in the peripheral direction of the tubular yoke portion; and a root portion of each of the commutating-pole teeth has inclined shoulders which are gradually enlarged radially outward.