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:
Dec. 24, 2019
Filed:
Jul. 01, 2015
Applicant:
Ube Machinery Corporation, Ltd., Ube-shi, JP;
Inventors:
Takeharu Yamamoto, Ube, JP;
Masahiro Doki, Ube, JP;
Assignee:
Ube Machinery Corporation, Ltd., Ube, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21C 35/04 (2006.01); B21C 23/00 (2006.01);
U.S. Cl.
CPC ...
B21C 35/04 (2013.01); B21C 23/002 (2013.01);
Abstract
A shear device () of an extrusion press having a booster mechanism using an air cylinder or electric motor to supplement thrust to an amount corresponding to hydraulic pressure is provided. A fastening part pressing against a die stack () is configured by a booster mechanism using a lever and a shear guide () is pressed against a horseshoe () to fasten it in the extrusion direction. Further, a clearance between a surface of the die stack and a shear knife can be held constant. Also, a booster mechanism using a lever is employed for a tilt mechanism for the shear guide in the extrusion press.