Method of molding a resin pulley

Details Method of molding a resin pulley Method of molding a resin pulley

1995-11-17

1998-03-17

Silbaugh, Jan H.

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

264276, 264242, B29C 4500

Patent

active

057283435

ABSTRACT:
In a method of molding a resin pulley in which a rolling bearing is integrally fitted to the inner periphery of an annular resin body simultaneously with the molding of the resin body, a dummy boss shaft closes the inner periphery and a lateral side of the metallic member. With the cavity molds closed, an annular film gate is formed, by a flange of the dummy boss shaft and a cavity mold, in the vicinity of the outer peripheral edge of an end surface of the rolling bearing. The cavity is charged with molten resin through the film gate.

REFERENCES:
patent: 3990136 (1976-11-01), Hishida
patent: 4580757 (1986-04-01), Dobhan et al.
patent: 4581806 (1986-04-01), Minoshima
patent: 4654181 (1987-03-01), Brandenstein et al.
patent: 4668209 (1987-05-01), Kyoosei et al.

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