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:
May. 22, 2001

Filed:

Feb. 11, 2000
Applicant:
Inventors:

Yoshihiro Yagi, Tochigi, JP;

Hiromi Kawarai, Tochigi, JP;

Setsuya Uchino, Tochigi, JP;

Hideki Sunaga, Gunma, JP;

Shigenori Ohira, Ibaraki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 5/04 ; H02K 5/24 ;
U.S. Cl.
CPC ...
H02K 5/04 ; H02K 5/24 ;
Abstract

A brushless motor comprises a parts protecting case; a drive shaft rotatable about its axis relative to the parts protecting case; a fixed housing for rotatably holding therein the drive shaft; a stator tightly held by the fixed housing; a shock absorbing unit interposed between the fixed housing and the parts protecting case to suppress transmission of vibration of the fixed housing to the parts protecting case; a yoke connected to the drive shaft to rotate therewith; and a plurality of magnets held by the yoke. The yoke has a vibration damping structure to suppress or at least minimize transmission of vibration of the yoke to the drive shaft.


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