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. 26, 2022

Filed:

Jan. 13, 2020
Applicant:

Mazda Motor Corporation, Hiroshima, JP;

Inventors:

Yuri Takahashi, Hiroshima, JP;

Takeshi Matsuda, Hiroshima, JP;

Kenji Nakamura, Higashihiroshima, JP;

Chie Okawa, Hiroshima, JP;

Ichirou Ino, Hiroshima, JP;

Naoyuki Irie, Hatsukaichi, JP;

Assignee:

MAZDA MOTOR CORPORATION, Hiroshima, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D 37/16 (2006.01); B21D 22/02 (2006.01);
U.S. Cl.
CPC ...
B21D 37/16 (2013.01); B21D 22/022 (2013.01);
Abstract

A lower mold includes: refrigerant ejection ports in its press-molding surface; refrigerant guide grooves in the press-molding surface to guide a refrigerant ejected from the refrigerant ejection ports to an outer portion of the press-molding surface with the refrigerant being in contact with a workpiece; a single connecting groove connected to the refrigerant guide grooves and formed at the outer portion of the press-molding surface into which the refrigerant flows through the refrigerant guide grooves; and discharge ports in the connecting groove. Each of the refrigerant discharge ports is formed at a part of the connecting groove apart from the connecting points between the connecting groove and the refrigerant guide grooves.


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