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:
Dec. 05, 2017

Filed:

Feb. 19, 2014
Applicant:

Amada Holdings Co., Ltd., Kanagawa, JP;

Inventors:

Shigeru Endo, Kanagawa, JP;

Hiroshi Nakai, Kanagawa, JP;

Assignee:

AMADA HOLDINGS CO., LTD., Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 28/34 (2006.01);
U.S. Cl.
CPC ...
B21D 28/346 (2013.01); B21D 28/34 (2013.01); Y10T 83/9476 (2015.04);
Abstract

A punch die includes: a punch body including a punch edge portion at a lower end portion along an axis, a key projecting from an outer periphery, and a punch driver at an upper portion along the axis; a punch guide including an inner hollow elongated along the axis and receiving the punch body to be movable along the axis, and a keyway formed on an internal periphery of the inner hollow to extend along the axis and mesh with the key; a retainer collar rotatably combined with the punch guide at an upper end along the axis and around the axis, the punch driver passing through the retainer collar to be movable along the axis; and a punch head screwed in an upper end portion along the axis of the punch driver to regulate a position of the punch driver.


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