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:
Feb. 27, 2024

Filed:

Dec. 27, 2022
Applicant:

Futaba Industrial Co., Ltd., Okazaki, JP;

Inventors:

Yuji Nakada, Okazaki, JP;

Koichiro Yamamoto, Okazaki, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B21D 9/05 (2006.01); B21D 9/04 (2006.01);
U.S. Cl.
CPC ...
B21D 9/05 (2013.01); B21D 9/04 (2013.01);
Abstract

A shaping method for a double pipe includes: bending the double pipe with a specified curvature to form a bent portion in the double pipe; and arranging the bent portion on a first shaping die having a first shaping surface at a position biased inward or outward in a curvature radius direction of the bent portion relative to the first shaping surface, wherein the first shaping surface is configured to shape a first outer surface of both outer surfaces of the bent portion that are located on both sides of a plane including a central axis of the bent portion, and pressing the bent portion arranged on the first shaping die by a second shaping die having a second shaping surface configured to shape a second outer surface of the both outer surfaces of the bent portion.


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