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:
Dec. 21, 1993
Filed:
Feb. 28, 1992
Toshiya Yuhi, Matsudo, JP;
Michio Hoshino, Matsudo, JP;
Toru Yano, Matsudo, JP;
Hideo Tamura, Matsudo, JP;
Isamu Serizawa, Matsudo, JP;
Etsuo Mayumi, Matsudo, JP;
Takashi Ushiku, Matsudo, JP;
Takeshi Okumura, Matsudo, JP;
Kouichi Koide, Matsudo, JP;
Mabuchi Motor, Co., Ltd., Chiba, JP;
Abstract
A commutator has such a construction that a flange having an outside diameter larger than the outside diameter of a cylindrical body is provided integrally with the cylindrical body in the vicinity of one end of the cylindrical body; guide grooves formed in a circular arc shape in cross section are provided on the flange at the boundary of the flange to the cylindrical body; engaging pieces passing through the guide grooves are provided on one end of a commutator segment; and engaging pieces are caused to deform plastically to fixedly fit the engaging pieces to the flange.