초록 ▼

A method of molding a skin-covered foamed plastic article, which includes by steps putting a bag-shaped outer skin member into a cavity of a lower mold, the skin member including an outer layer and a porous inner layer lined on the outer layer; putting a first upper mold on said lower mold to close

A method of molding a skin-covered foamed plastic article, which includes by steps putting a bag-shaped outer skin member into a cavity of a lower mold, the skin member including an outer layer and a porous inner layer lined on the outer layer; putting a first upper mold on said lower mold to close the cavity; fastening the lower and first upper molds together with a first fastening force; pouring a foamable plastic material into the bag-shaped outer skin member in the cavity and curing the same; removing the first upper mold from the lower mold after the material is hardened to a certain degree; putting a second upper mold on the lower mold to define a given space therebetween; fastening the lower and second upper molds together with a second fastening force which is greater than the first fastening force; and pouring the foamable plastic material into the given space and curing the same.

대표청구항 ▼

A method of molding a skin-covered foamed plastic article, comprising by steps: (a) putting a bag-shaped outer skin member into a cavity of a lower mold, said skin member including an outer layer and a porous inner layer lining said outer layer; (b) putting a first upper mold on said lower mold to c

A method of molding a skin-covered foamed plastic article, comprising by steps: (a) putting a bag-shaped outer skin member into a cavity of a lower mold, said skin member including an outer layer and a porous inner layer lining said outer layer; (b) putting a first upper mold on said lower mold to close said cavity with a portion of said porous inner layer exposed in said cavity; (c) fastening said lower and first upper molds together with a first fastening force; (d) pouring a foamable plastic material into said cavity and foaming and curing said material; (e) releasing an excessive pressure produced in said cavity during said foaming by discharging gas through said porous inner layer so that part of said material penetrates into said portion of said porous inner layer; (f) removing said first upper mold from said lower mold after the material is hardened to a certain degree; (g) putting a second upper mold on said lower mold to define a space therebetween with another portion of said porous inner layer exposed in said space; (h) fastening said lower and second upper molds together with a second fastening force of a magnitude different from said first fastening force; (i) pouring a foamable plastic material into said space and foaming and curing said material; and (j) releasing an excessive pressure produced in said space during said foaming by discharging gas through said porous inner layer so that part of said material penetrates into said another portion of said porous inner layer; said different fastening forces resulting in discharge of different amounts of gas and penetration of different amounts of material into said portions of said porous inner layer, thereby resulting in said article having certain portions which are different in resiliency.