Abstract: The present invention provides a synthetic resin foaming molding die, a manufacturing method of a synthetic resin foaming molded article using the molding die, and a synthetic resin foaming molded article molded by the manufacturing method, which can prevent generation of a large-size void(s). The molding die (10) comprises an upper die (16) and a lower die (12) and having a cavity (29) defined by the upper die and the lower die, and a parting line 22 (communicating portion) communicating the cavity (29) and an ambient air. A rod-like member (24) is provided in fluid passage to allow the synthetic resin foaming material to flow to the parting line (22), in a protruding manner from the cavity surface.

Abstract: A seat pad and a method for manufacturing the same are provided, wherein molding failure is prevented at the periphery of a horizontal groove. In the seat pad, a groove structure 7 for containing a part of a seat cover material is provided on a seat surface for seating. At least a part of the groove structure is formed as a horizontal groove which extends in a horizontal direction. The seat pad is manufactured by foam molding in a mold with the seat surface maintained to face in a downward direction, and a first end of the seat surface, in terms of a longitudinal direction of the seat pad which crosses the horizontal direction thereof at right angle, positioned lower than a second end thereof. The seat pad has at least one concavity 10 positioned between the first end and the horizontal groove, so as to face the horizontal groove.

Abstract: A seat pad and a method for manufacturing the same are provided, wherein molding failure is prevented at the periphery of a horizontal groove. In the seat pad, a groove structure 7 for containing a part of a seat cover material is provided on a seat surface for seating. At least a part of the groove structure is formed as a horizontal groove which extends in a horizontal direction. The seat pad is manufactured by foam molding in a mold with the seat surface maintained to face in a downward direction, and a first end of the seat surface, in terms of a longitudinal direction of the seat pad which crosses the horizontal direction thereof at right angle, positioned lower than a second end thereof. The seat pad has at least one concavity 10 positioned between the first end and the horizontal groove, so as to face the horizontal groove.