Method of making integrally foam-molded seats

A method of making an integrally foam-molded seat by disposing a surface cover along an inner wall surface of a molding cavity of a lower mold used for molding a polyurethane foam and having a seat surface pattern embossed on said inner wall surface, injecting a polyurethane resin solution into the molding cavity of said lower mold and foaming the polyurethane resin mold the polyurethane foam integrally combined with surface cover;

• said method comprising the steps of:
• securing the marginal end edges of said surface cover to surface-cover end retaining members;
• defining, adjacent to an upper peripheral edge of the molding cavity of said lower mold, a mold portion having a shape conforming to the shape of the combination of said end edges of said surface cover and said surface-cover end retaining member;
• placing the surface cover along the inner wall surface of the molding cavity of said lower mold with said combination of the said end edges and said surface-cover end retaining member positioned in said mold portion;
• injecting the polyurethane resin solution into the molding cavity of said lower mold;
• and
• foaming the polyurethane resin to mold the polyurethane foam integrally combined with said surface cover.