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:
Oct. 15, 2013

Filed:

Dec. 18, 2009
Applicants:

Masaki Saito, Okazaki, JP;

Shingo Hashimoto, Okazaki, JP;

Fumio Shindo, Nishio, JP;

Inventors:

Masaki Saito, Okazaki, JP;

Shingo Hashimoto, Okazaki, JP;

Fumio Shindo, Nishio, JP;

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D 5/02 (2006.01); B21D 11/00 (2006.01); B21D 9/05 (2006.01);
U.S. Cl.
CPC ...
Abstract

A bending apparatus for performing accurate non-destructive bending of material includes first and second jigs that are rotatable about a rotary shaft and that bend the material attached to the jigs as they rotate relative to each other. The first jig includes a bending section that is arranged offset from a rotary center to a rotating side of the material and that has a partially cylindrical surface with a radius of curvature corresponding to the radius of curvature of an inner peripheral surface of the material. Each of the first and second jigs has a suppressing section for suppressing displacement of the material, and a bending center of the material is arranged such that the material is not displaced relative to the first and second jigs when the material is bent.


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