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:
Jan. 07, 2020

Filed:

Aug. 04, 2015
Applicant:

Fukui Prefectural Government, Fukui-shi, Fukui, JP;

Inventors:

Yoshinori Sasaki, Fukui, JP;

Masami Matsumura, Fukui, JP;

Assignee:

FUKUI PREFECTURAL GOVERNMENT, Fukui-shi, Fukui, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D 5/14 (2006.01); B21D 43/09 (2006.01); B21D 5/00 (2006.01); B21D 7/12 (2006.01); B21D 5/08 (2006.01);
U.S. Cl.
CPC ...
B21D 5/14 (2013.01); B21D 5/08 (2013.01); B21D 7/12 (2013.01);
Abstract

A method for deriving the position of a pushing roll, applied even when there is a difference between the actual processed shape and a theoretical solution (a numerical analysis solution) due to changes in a state of a processing machine or the bending characteristic of the material to be processed. The rolls have a pyramid-like shape, and the operation amount of a pushing roll is changed while continuously feeding a material, thereby bending the material. Also, for each position of the fixed pushing roll, the radius of curvature of the material is measured and the bending characteristic is grasped in advance. From the design shape, the radius of curvature and the operation amount for bringing the pushing roll into contact are obtained. The operation amount of the pushing roll is then determined.


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