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:
Jun. 02, 2015
Filed:
Nov. 21, 2011
Shoji Futamura, Zama, JP;
Chikara Murata, Zama, JP;
Tatsuya Takahashi, Zama, JP;
Atsumori Inada, Zama, JP;
Tetsuya Yoneda, Zama, JP;
Shoji Futamura, Zama, JP;
Chikara Murata, Zama, JP;
Tatsuya Takahashi, Zama, JP;
Atsumori Inada, Zama, JP;
Tetsuya Yoneda, Zama, JP;
HODEN SEIMITSU KAKO KENKYUSHO CO., LTD., Kanagawa, JP;
Abstract
An operation method of an electric press working machine including a frame body, a crown, and a plurality of support posts, a first slide that slides on the support posts, a second slide that slides on the support posts, a first-side drive source that drives the first slide, a second-side drive source that drives the second slide, and either a first upper die that is attached to correspond to the first slide or a second upper die that is attached to correspond to the second slide or both. The method includes: a step of moving the first and second slides to a first position; a step of moving the second slide to a second position while keeping the first slide at the first position; and a step of moving the second slide to a third position while keeping the first slide at the first position.