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:
Mar. 05, 2019

Filed:

Nov. 16, 2016
Applicant:

Shiroki Corporation, Fujisawa-shi, Kanagawa, JP;

Inventors:

Jun Kimura, Fujisawa, JP;

Jun Makita, Novi, MI (US);

Assignee:

SHIROKI CORPORATION, Fujisawa-Shi, Kanagawa, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D 53/74 (2006.01); B21D 53/88 (2006.01); B60J 5/00 (2006.01);
U.S. Cl.
CPC ...
B21D 53/88 (2013.01); B60J 5/00 (2013.01);
Abstract

A method of manufacturing a door channel is provided. The door channel is provided in a space defined between an inner panel and an outer panel of a vehicle door and has an outside wall and a connection wall connected to the outside wall. The method includes: (a) disposing the door channel in a die; and (b) forming a cut portion in a comer portion of the door channel by punching the comer portion by a punch. The cut portion includes: a first cut portion formed in a comer portion of the outside wall; and a second cut portion formed in a corner portion of the connection wall and communicating with the first cut portion. By the first cut portion, a first cut surface and a second cut surface facing each other are formed on the outside wall. In the step (b), the first cut portion and the second cut portion are formed by a single punching.


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