| 摘要 |
PROBLEM TO BE SOLVED: To provide a molding method of foamed resin molded product eliminating R-sagging at a corner part of a vertical wall part in the molding method of foamed resin molded product which uses a molding method of adjusting a mold clearance upon material supply and upon foaming reaction. SOLUTION: A luggage side trim 10 is configured by integrally joining a trim upper (foamed resin molded product) 20 and a trim lower (resin molded product) 30, and the trim upper 20 is obtained by injecting and charging a foaming resin material M into a cavity C1 for ordinary part and a cavity C2 for vertical wall part which are demarcated by a movable side mold 50 and a stationary side mold 60, thereafter, retreating the movable side mold 50 to secure a foaming space S and subjecting the injected foaming resin material to foaming reaction to be molded into a desired shape. Therein, a mold clearance d2 of the cavity C2 for vertical part is set in thick wall so as to be d1+0.2 to 0.8 mm, d1 being an initial mold clearance of the cavity C1 for ordinary part, thereby, the foaming reaction of the whole vertical wall part (including the corner part) is effectively performed and, as the result, the R-sagging at a boundary corner part 25 is avoided. COPYRIGHT: (C)2010,JPO&INPIT |
