US 6,464,557 B1 · Elastomeric doll head, molding method and mold therefor

Abstract

A method for forming a safe molding material into an elastic doll head of a uniform thickness without deteriorating an appearance of the doll head. Split mold members (2, 3) each have an inner surface (2a, 3a) formed to have a configuration which provides a shape of a doll head (A) when the split mold members cooperate with each other. The split mold members (2, 3) form the doll head with a parting line (18) in a manner to extend from an upper portion (27) of a forehead of the doll head through a rear side (28) of each of ears thereof to a rear portion (29) of a neck thereof, to thereby substantially equally divide the doll head into two halves. A molding material mainly consisting of a thermoplastic synthetic resin elastomer is heated and dropped in the form of a parison (13) into a space defined between the split mold members (2, 3) kept spaced from each other. Then, the split mold members (2, 3) are joined to each other and air is blown into the thus-joined split mold members. A neck hole (75) is concurrently formed during the blow molding.

Claims32

Dependent claims

A method for forming an elastic doll head, characterized in that the method comprises the steps of:

providing split mold members each having an inner surface formed to have a configuration which provides a shape of the doll head when said split mold members cooperate with each other, said split mold members forming the doll head with a parting line through which the doll head is substantially equally divided into two halves;
heating a molding material mainly consisting of one selected from the group consisting of a thermoplastic synthetic resin elastomer and a silicone resin material, dropping the molding material in the form of a parison into a space defined between said split mold members kept spaced from each other, joining said split mold members to each other, and blowing air into said split mold members thus joined;
and
separating said split mold members from each other to remove the molded doll head from said split mold members;
said split mold members each being formed with a cavity and a mating surface so that said parting line is formed on the doll head so as to extend from an upper portion of a forehead of the doll head through a rear side of each of ears thereof to a rear portion of a neck thereof;
one of said split mold members being formed with a neck hole forming means in a manner to be retractably advanced into said cavity;
said neck hole forming means being formed with an air injection nozzle for injecting air into said cavities of said split mold members, resulting in blow molding being carried out.

4 more elements

Dependencies are inferred from the claim text.

Elastomeric doll head, molding method and mold therefor

Life of this patent

Elastomeric doll head, molding method and mold therefor

Life of this patent

Abstract

Claims32