Title:
PUNCH PRESS
Document Type and Number:
WIPO Patent Application WO/2019/198856
Kind Code:
A1
Abstract:
The present invention relates to a punch press, comprising: a lower mold on which a panel is seated; an upper mold pad positioned on the lower mold so as to fix the panel seated on the lower mold from above; a punch having a punch blade for pressing a pad to perform a piercing process; an upper die steel on which the punch is installed, wherein the punch is formed with a pressing protrusion that protrudes more than the punch blade so as to press the pad prior to the punch blade during the piercing process.
Inventors:
SEO JAE WON (KR)
CHOI HYUN BUM (KR)
CHOI HYUN BUM (KR)
Application Number:
PCT/KR2018/004739
Publication Date:
October 17, 2019
Filing Date:
April 24, 2018
Export Citation:
Assignee:
HOWON TECH CO LTD (KR)
International Classes:
B21D31/02; B21D45/00
Foreign References:
| KR20050069052A | 2005-07-05 | |||
| KR20110006097U | 2011-06-17 | |||
| JP2014136226A | 2014-07-28 | |||
| KR20090126120A | 2009-12-08 | |||
| KR20060014679A | 2006-02-16 |
Attorney, Agent or Firm:
AJU INTERNATIONAL LAW & PATENT GROUP (KR)
Download PDF: