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. 20, 1998
Filed:
Sep. 08, 1995
Tadahisa Nobe, Shizuoka-ken, JP;
Takeshi Yanagiya, Shizuoka-ken, JP;
Katsuhiko Torii, Shizuoka-ken, JP;
Yuichi Terada, Shizuoka-ken, JP;
Asmo Co., Ltd., Shizuoka-ken, JP;
Abstract
A motor has an armature that includes a motor core and a commutator. An insulator for insulating the motor core is composed of winding insulating portions and a shaft insulating portion integral with the winding insulating portions. A connecting portion is formed at the end of the shaft insulating portion. The connecting portion is inserted into an insertion groove of the commutator for integral connection. Specifically, the insulator is fixed to the armature shaft by the application of windings, and the commutator is connected and fixed to the insulator. Accordingly, a larger fixing force can be obtained compared to conventional structures, and the use of an adhesive and highly accurate machining become unnecessary, thereby decreasing costs.