| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for molding a foamable resin which can form a good-looking molding and the structure of a mold. SOLUTION: Opposing surfaces 11a and 12a facing each other are formed by the fixed and movable molds 11 and 12 of a mold 10 which forms a porous door trim substrate 1 from a foamable resin material, and projections 11b and 12b are protruded from the opposing surfaces 11a and 12a to contact each other when the mold 10 is opened. The sides 11c and 12c of the projections 11b and 12b are tapered, and a cavity CV is formed by the opposing surfaces 11a and 12a and the sides 11c and 12c. The sum 2A of the lengths in the mold opening direction of the sides 11c and 12c is set to be the length of the distance t between the opposing surfaces 11a and 12a when the mold 10 is opened plus a mold opening amountαwhen the resin material is expanded. COPYRIGHT: (C)2007,JPO&INPIT
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