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:
Aug. 16, 2022
Filed:
Dec. 30, 2020
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Inventors:
Yoshiki Matsuura, Toyota, JP;
Junji Asano, Kariya, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D 17/04 (2006.01); B22D 17/30 (2006.01); B22D 17/32 (2006.01); B22D 17/10 (2006.01); B22D 17/20 (2006.01);
U.S. Cl.
CPC ...
B22D 17/04 (2013.01); B22D 17/10 (2013.01); B22D 17/203 (2013.01); B22D 17/30 (2013.01); B22D 17/32 (2013.01);
Abstract
A die casting method includes a step of supplying molten metal to a plunger sleeve, and a step of advancing a plunger in the plunger sleeve, to inject the molten metal into dies. In the step of injecting the molten metal into the dies, the plunger is once retracted before being advanced, and the plunger is kept accelerated until the plunger reaches a target maximum speed when the plunger retracted is advanced.