Title:
PRESS MOLDING DEVICE, PRESS MOLDING METHOD, AND PRESS-MOLDED ARTICLE
Document Type and Number:
WIPO Patent Application WO/2015/083812
Kind Code:
A1
Abstract:
[Problem] To provide a press molding device with which buckling can be prevented and vertical wall portions can be thickened appropriately. [Solution] A press molding device with which a press-molded article is formed by press-working a work piece, said press molding device comprising: a support member which supports a work piece of a first thickness having a hat-shaped cross section or a U-shaped cross section; a punch member which, by moving relative to the support member, press-works the work piece so that the height of a vertical wall portion of the work piece is reduced and the vertical wall portion is thickened to a second thickness; and pad members which sandwich the vertical wall portion to be thickened and face the support member, said pad members being biased by biasing members, and the space between the pad members and the support member during the press-work being maintained at the same size as the second thickness or less.
Inventors:
YOSHIKAWA NOBUO (JP)
YOSHIDA HIROSHI (JP)
NITTA JUN (JP)
YOSHIDA TOHRU (JP)
YOSHIDA HIROSHI (JP)
NITTA JUN (JP)
YOSHIDA TOHRU (JP)
Application Number:
PCT/JP2014/082188
Publication Date:
June 11, 2015
Filing Date:
December 05, 2014
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
B21J5/02; B21D5/01; B21D22/26; B21D24/00; B21J13/02
Foreign References:
| JP2009248092A | 2009-10-29 | |||
| JP2010149179A | 2010-07-08 | |||
| JP2001047175A | 2001-02-20 | |||
| JPH1190550A | 1999-04-06 | |||
| JP2008296252A | 2008-12-11 |
Attorney, Agent or Firm:
KAMEYA, Yoshiaki et al. (JP)
Yoshiaki Kameya (JP)
Yoshiaki Kameya (JP)
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