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:
Oct. 16, 2018
Filed:
Feb. 17, 2016
Toyota Jidosha Kabushiki Kaisha, Toyota-shi Aichi-ken, JP;
Kouichi Mine, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
A manufacturing method of a core for a rotary electric machine includes: forming a crimped portion on both a first magnetic steel sheet and a second magnetic steel sheet. The crimped portion has a recessed portion that is recessed from a first surface and a protruding portion that protrudes from a second surface in a position on the reverse side of the recessed portion on the second surface; and stacking the first magnetic steel sheet and the second magnetic steel sheet while curving the first magnetic steel sheet such that a first surface side bulges out, and inserting the protruding portion of the crimped portion of the second magnetic steel sheet into the recessed portion of the crimped portion of a curved first magnetic steel sheet.