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.
Patent No.:
Date of Patent:
May. 06, 2014
Filed:
Nov. 18, 2005
Yukio Takahashi, Kanagawa, JP;
Satoshi Shimizu, Kanagawa, JP;
Hiroshi Nakai, Kanagawa, JP;
Amada Company, Limited, Kanagawa, JP;
Abstract
Provided is a punch tool which enables improvement in accuracy of processing a work by suppressing rattling between a punch body and a punch guide and eliminating almost all steps in a punched surface (cut surface) of the work. A punch tool includes a cylindrical punch guide; a punch body movably provided in the vertical directions in the punch guide; a punch head provided at an upper end of the punch body; a stripper spring provided on a lower side of the punch head; and a plurality of rotation control modules including key grooves and formed so as to vertically extend in the punch guide or the punch body and keys and which are provided in the punch body or the punch guide and are movably fitted in the vertical directions to the key grooves.