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. 04, 2011
Filed:
Feb. 04, 2008
Applicants:
Tsuyoshi Nakamura, Tochigi, JP;
Yasuhiko Kitano, Tochigi, JP;
Yoshimitsu Ishihara, Tochigi, JP;
Shingo Maeda, Tochigi, JP;
Inventors:
Tsuyoshi Nakamura, Tochigi, JP;
Yasuhiko Kitano, Tochigi, JP;
Yoshimitsu Ishihara, Tochigi, JP;
Shingo Maeda, Tochigi, JP;
Assignee:
Honda Motor Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 22/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A die set for press-forming a blank of thin metallic sheet. The die set has a punch and a blank holder. The blank holder has a first bead for restraining an edge of the blank with a constant force. The first bead is disposed further to an inside than a second bead for restraining the edge of the blank with a force that varies during pressing of the blank.