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:
May. 16, 2000
Filed:
Jun. 16, 1998
Takehiro Kobayashi, Tokyo, JP;
Shigeru Shiroyama, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An armature in which a commutator and a lead-out section are firmly joined and satisfactory insulation is secured between an armature core and an armature coil. An armature (11) is equipped with: a shaft (2); an armature core (3) secured to the shaft (2); an armature coil (4) composed of conductors (4b) wound in slots (3a) formed in the armature core (3); a commutator (5) secured to the shaft (2); a belt-shaped member (13) which is provided to surround a lead-out section (4a) and which fastens a welded portion (A) where segments (8) of the commutator (5) and the lead-out section (4a) are ultrasonically welded; and a molded portion (12) which covers the outer peripheral surface of the armature core (3) and the outer peripheral surface of the lead-out section (4a).