MOLD AND METHOD FOR FOAM MOLDING

WIPO Patent Application WO/2006/101029

A1

A mold and a method for foam molding capable of releasing a molding from the mold by opening a valve element even if a gas is supplied at a rather low pressure and preventing the outer surface of the molding from being dented by the valve element. A gas blowing port (4) is formed in the cavity surface of a drag (3). A cylinder (5) having a cylinder bore (5b) communicating with the gas blowing port (4) is fitted to the drag (3). A pressure receiving member (6) is stored in a cylinder bore (5b) so as to be vertically advanced and retreated. The pressure receiving member (6) is energized upward by a coiled spring (8). The valve element (9) is connected to the pressure receiving member (6). The valve element (9) is inserted from the inside of the cylinder bore (5b) into the gas blowing port (4). When air is led into the space of the cylinder bore (5b) between the pressure receiving member (6) and the gas blowing port (4), the pressure receiving member (6) is pushed down by air pressure and, accordingly, the valve element (9) is retreated to open the gas blowing port (4).

JPH01253413	REMOVING METHOD FOR EPOXY MOLDED MATERIAL FROM MOLD
JPH06238681	PRODUCTION RELEASING DEVICE FOR EXPANSION MOLDING DIE

HORIMATSU TOSHIYUKI (JP)
SATO MASATOSHI (JP)

PCT/JP2006/305353

September 28, 2006

March 17, 2006

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BRIDGESTONE CORP (JP)
HORIMATSU TOSHIYUKI (JP)
SATO MASATOSHI (JP)

B29C39/36; B29C39/02; B29C39/26; B29K75/00; B29K105/04

JP2004261969A	2004-09-24
JPS546055A	1979-01-17
JPS532459U	1978-01-11

Shigeno, Tsuyoshi (9F 5-10, Shinjuku 2-chom, Shinjuku-ku Tokyo 22, JP)

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