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:
Apr. 02, 2019

Filed:

Sep. 18, 2014
Applicant:

Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;

Inventors:

Yasuharu Tanaka, Tokyo, JP;

Toshimitsu Aso, Tokyo, JP;

Takashi Miyagi, Tokyo, JP;

Misao Ogawa, Tokyo, JP;

Shinobu Yamamoto, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21J 5/02 (2006.01); B21D 24/04 (2006.01); B21D 24/02 (2006.01); B21D 22/26 (2006.01); B21D 53/88 (2006.01);
U.S. Cl.
CPC ...
B21J 5/02 (2013.01); B21D 22/26 (2013.01); B21D 24/02 (2013.01); B21D 24/04 (2013.01); B21D 53/88 (2013.01);
Abstract

A hat-shaped cross-section component manufacturing apparatus includes: a die that includes a forming face that grips and presses a metal stock sheet; a blank holder, that includes a forming face that grips and presses the metal stock sheet so as to configure a forming face corresponding to the forming face of the die, a pad that is disposed inside the opening formed in the die, and that includes a forming face that grips and presses the metal stock sheet; and a punch that is disposed facing the pad and that includes a forming face that grips and presses the metal stock sheet so as to configure a forming face corresponding to the forming face of the pad. The hat-shaped cross-section component manufacturing apparatus further includes a pressure limiting device that limits a formed curving component from being pressed between the pad and the blank holder during demolding.


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