METHOD FOR PRODUCING RESIN MOLDED BODY OF HOLLOW STRUCTURE BODY, AND CORE

WIPO Patent Application WO/2012/001803

A1

Disclosed is a method for producing a resin molded body of a hollow structure body having a hollow portion, and an opening for connecting the hollow portion to the outside, wherein the method is provided with a step for forming a hollow core corresponding to the shape of the hollow portion, a step for forming an outer die corresponding to the outer shape of the hollow structure body, a step for setting the core in the outer die and injecting a soft resin material to a gap formed between the outer die and the core, a step for demolding a soft resin molded body formed when the soft resin material is cured, a step for crushing and fragmenting the core by deforming the soft resin molded body by applying an external force to the soft resin molded body, and a step for discharging the fragmented core to the outside from the opening of the soft resin molded body.

TAKEDA MASATOSHI (JP)
HATANAKA KATSUNORI (JP)
TOKIWA SHINICHI (JP)
KITAMURA YASUHIKO (JP)
SHIRAISHI ISAO (JP)

PCT/JP2010/061249

January 05, 2012

July 01, 2010

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CROSSEFFECT INC (JP)
TAKEDA MASATOSHI (JP)
HATANAKA KATSUNORI (JP)
TOKIWA SHINICHI (JP)
KITAMURA YASUHIKO (JP)
SHIRAISHI ISAO (JP)

B29C39/26; B29C33/38; B29C33/76; B29C39/02; G09B23/30; B29L22/00

JPS51111262A	1976-10-01
JP2005128134A	2005-05-19
JPH1134081A	1999-02-09
JP2006113440A	2006-04-27
JP2004261816A	2004-09-24
JP2005128134A	2005-05-19

See also references of EP 2589476A4

Kyoto International Patent Law Office (JP)
Patent business corporation Kyoto international patent firm (JP)

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