Crude tire setting method in tire vulcanizing press

Details Crude tire setting method in tire vulcanizing press Crude tire setting method in tire vulcanizing press

1989-03-30

1991-06-25

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

264326, 425 36, 425 48, 425 52, 425 58, 425 38, 425 43, B29C 3500

Patent

active

050265156

ABSTRACT:
A method of setting a crude tire into a space between upper and lower molds in a tire vulcanizing press having upper and lower mold units movable relative to each other includes the steps of pushing an upper bead of the crude tire into a bead of the upper mold by a vertically movable device which supports the upper bead of the crude tire, introducing gas into a bladder to expand the bladder while restricting the elevation of an upper portion fixing ring of a bladder holder mechanism attached to the lower mold unit, and pushing a lower bead of the crude tire into a bead of the lower mold by utilizing the expansion forces of the bladder. With the bladder enclosed air-tightly, the tire lower bead can efficiently be pushed into the lower mold bead.

REFERENCES:
patent: 3794457 (1974-02-01), Gazuit
patent: 3837770 (1974-09-01), Gazuit
patent: 4444715 (1984-04-01), Nixon et al.
patent: 4447385 (1984-05-01), Blosser et al.
patent: 4800059 (1989-01-01), Drewel et al.
patent: 4846649 (1989-07-01), Hasegawa et al.

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