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.

Date of Patent:
Oct. 13, 2020

Filed:

Nov. 22, 2017
Applicant:

Toyota Boshoku Kabushiki Kaisha, Aichi-ken, JP;

Inventors:

Kazuyuki Hirata, Toyota, JP;

Harutaka Oda, Toyota, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D 13/02 (2006.01);
U.S. Cl.
CPC ...
B21D 13/02 (2013.01);
Abstract

A method for forming a metal sheet includes forming a metal sheet to have curved portions that are alternately continuous in a corrugated pattern and angled sidewall portions between top parts of adjoining curved portions by use of a pair of forming dies that are moved close to or away from each other. The forming includes bending the metal sheet by pressing a position corresponding to a boundary part between the top part and the sidewall portion of the metal sheet by a convex curved surface of the forming die by moving the pair of forming dies close to each other and thereafter forming the sidewall portions by compression.


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