Method for molding a tire tread by injection

Details Method for molding a tire tread by injection Method for molding a tire tread by injection

1992-06-17

1994-03-29

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

156125, 264259, 264250, 2643283, 264314, 425543, B29C 4514, B29D 3022

Patent

active

052982165

ABSTRACT:
A method for molding a tire tread element by injecting a rubber mixture through injection holes of an injection mold formed by moving two cooperating mold elements toward a cylindrical drum disposed therebetween. The mold elements sealingly match to an outer surface of the inflatable drum to define a mold cavity of a cross-section and length selected to form a tread element of precisely defined shape and size. A breaker layer may be integrated with an injected rubber mixture and the tread element may be made to be completely circular or linear with matchingly formed end surfaces enabling secure adherence thereat.

REFERENCES:
patent: 2724425 (1955-11-01), Ostling
patent: 4055619 (1977-10-01), Goodfellow
patent: 5024800 (1991-06-01), Schmidt et al.

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