Title:
PRESS MOLDING METHOD AND BOTTOMED CONTAINER
Document Type and Number:
WIPO Patent Application WO/2014/065290
Kind Code:
A1
Abstract:
The press mold is provided with an inner punch (23), an intermediate punch (24) disposed along the outer circumference of the inner punch (23) and having an intermediate punch inclined section (24a) on the leading end, an outer punch (25) disposed along the outer circumference of the intermediate punch (24), and a die (27) having a die inclined section (27a) to face the intermediate punch inclined section (24a), the central axes (20) of each being disposed on the same axis. Pressing in the edge of a bottomed container (22) using the outer punch (25) while the intermediate punch (24) is moved in the direction opposite to the direction in which the outer punch (25) is being pressed when the bottom of the bottomed container (22) is restricted by the inner punch (23) and the die (27) thickens the bottomed container inclined section (22a) of the bottomed container (22) that is clamped by the intermediate inclined section (24a) and the die inclined section (27a).
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Inventors:
YAMAMOTO SHUJI (JP)
WADA YASUHIRO (JP)
YAMAGATA MITSUHARU (JP)
WADA YASUHIRO (JP)
YAMAGATA MITSUHARU (JP)
Application Number:
PCT/JP2013/078611
Publication Date:
May 01, 2014
Filing Date:
October 22, 2013
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
B21K21/16; B21D22/28; B21D22/30; B21J5/08
Foreign References:
| JP2010214381A | 2010-09-30 | |||
| JP2005349433A | 2005-12-22 | |||
| JP2010120058A | 2010-06-03 |
Attorney, Agent or Firm:
KOKUBUN, Takayoshi (JP)
Takayoshi Kokubu (JP)
Takayoshi Kokubu (JP)
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