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:
Jan. 19, 2010
Filed:
Jun. 26, 2008
Hidenori Ishihara, Hamamatsu, JP;
Hideyuki Suzuki, Toyohashi, JP;
Katsuhiko Torii, Kosai, JP;
Hiroaki Yamamoto, Toyohashi, JP;
Tomoki Yamashita, Hamamatsu, JP;
Hidenori Ishihara, Hamamatsu, JP;
Hideyuki Suzuki, Toyohashi, JP;
Katsuhiko Torii, Kosai, JP;
Hiroaki Yamamoto, Toyohashi, JP;
Tomoki Yamashita, Hamamatsu, JP;
ASMO Co., Ltd., Shizuoka-ken, JP;
Abstract
A commutator having a plurality of segments, a short-circuit member assembly, a holding portion, and a plurality of spacing members is disclosed. The short-circuit member assembly includes a plurality of short-circuit pieces. Each short-circuit piece has an outer terminal, an inner terminal arranged radially inward from the outer terminal and circumferentially offset from the outer terminal at a predetermined offset angle, and a connecting portion connecting the inner terminal to the outer terminal. The holding portion covers the segments and at least a portion of the short-circuit member assembly to hold the segments and the short-circuit member assembly. The spacing members each have an insulated support portion and a plurality of insulated spacing projections formed integrally with the support portion. Each support portion extends in a radial direction of the short-circuit member assembly. The spacing projections are arranged in the direction in which the corresponding support members extend in such a manner that the spacing projections are each provided between the corresponding circumferentially adjacent pair of the connecting portions.