Process for producing multilayer molded article including folding of a skin material over a back of a resin material

A process for producing a multilayer molded article comprising a thermoplastic resin body and a skin material covering the resin body, which process comprises steps of:

• supplying a skin material between a pair of upper and lower molds;
• closing the molds a predetermined distance for holding said skin material between a skin material-holding frame which is movable in a direction perpendicular to a mold-closing direction and a skin material-supporting frame which is movable in the mold-closing direction;
• supplying a mass of a thermoplastic resin melt between the lower mold and the skin material;
• closing the molds and pressing a thermoplastic resin melt to form a multilayer molded article;
• retracting at least one moving member, which moves forward or rearward in the mold closing direction and is provided around a periphery of the mold face, away from the mold face after the closing of the molds;
• ejecting at least one ejector, which is provided on the skin material-holding frame and movable in a direction perpendicular to the mold closing direction, to fold an edge of the skin material towards a center of the mold;
• and
• advancing said at least one moving member until it reaches the mold face so as to fold back the edge of the skin material over the back of the resin body.