Molding method for manufacture of a resin molded part
AssigneeSuehiro Industrial Co., Ltd.
InventorsEiji Iame, Yasuo Imura
Life of this patent
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Abstract
A molding method for manufacture of a resin molded part having one or more flexibly movable, pushbutton-shaped thick projections formed integrally with a base through the intermediary of thin wall portions continued from the peripheral edges of the projections, wherein a thermoplastic elastomer is used as a molding material, and wherein the thick projections, the thin wall portions, and the base are integrally molded by supplying a mass of the molding material into a mold through a gate provided adjacent the center of a portion corresponding to each of the projections. The method requires no vulcanization and permits efficient production. Furthermore, it allows well balanced flow of the molding material and eliminates the possibility of burrs and sink marks being produced.
Claims4
A resin molded part comprising:
- a base;
- one or more flexible and movable push-button-shaped thick projections formed integrally with said base;
- and
- thin wall portions continued from the peripheral edges of the button-shaped thick projections to said base, said thin wall portions being 0.1 to 0.2 mm in thickness and having an inclination of 40-60.degree..
Dependencies are inferred from the claim text.