Patent ID: 6492000
Filing Date: 2002-12-10
Classification: B29C,B60R,Y10T

Abstract:
A method for producing a cellular molded article having a surface skin in a mold pattern, in which the above-mentioned surface skin material is melt united to one piece with a surface of the cellular molded article in the mold pattern which is molded by an expansion molding of expanded beads within this mold pattern, after the surface skin material is heat-molded along a cavity face of the mold pattern, wherein the method is characterized in that at a time of the above-mentioned heat-molding, an outer edge part of the above-mentioned surface skin material is folded back toward an inside direction of the mold pattern and forms a folded back part along a pattern for folding back which is arranged from an opening edge of the above-mentioned cavity face to project toward the inside direction of the mold pattern, and then, the above-mentioned pattern for folding back is removed, thereafter, at a time of the above-mentioned expansion molding, the one face of the above-mentioned folded back part is melt united to one piece with a back face of the cellular molded article in the mold pattern as well as a folded returning part, which is in a state that an outer edge part of the surface skin material is folded back toward an outside direction of the mold pattern from a tip of this folded back part, is pressed so as to pile on the other face of the above-mentioned folded back part.