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1. (WO2009118918) PRESS WORKING EQUIPMENT AND PRESS WORKING METHOD

Pub. No.:    WO/2009/118918    International Application No.:    PCT/JP2008/060049
Publication Date: Oct 1, 2009 International Filing Date: May 30, 2008
IPC: B21D 35/00
B21D 5/01
B21D 22/26
Applicants: Toyotomi Kiko Co., Ltd.
豊臣機工株式会社
YAMADA, Kouji
山田 耕治
Inventors: YAMADA, Kouji
山田 耕治
Title: PRESS WORKING EQUIPMENT AND PRESS WORKING METHOD
Abstract:
[PROBLEMS] To provide a technology to perform bending and drawing works simultaneously. [MEANS FOR SOLVING PROBLEMS] In press working equipment (10), a timing in which an upper pad (22) moves down and pinches a work (50) with a first supporting surface (18a) is so conditioned as not to be later than a timing in which an upper bending blade is brought into contact with the work (50). The height of the lower end of the upper bending blade after the timing in which the upper bending blade is brought into contact with the work (50) and the height of a second pressing surface (20a) of a drawing pad (20) after a timing in which the drawing pad (20) pinches the work (50) with a third supporting surface (14a) are conditioned in such a relationship that they may be lowered being kept at the same height in a boundary between the upper bending blade and the drawing pad (20).