Expandable tire building former

Details Expandable tire building former Expandable tire building former

1985-09-11

1987-06-16

Czaja, Donald E.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Tire body building type

152548, 152558, 156127, 156129, 1561303, 1561307, 1564062, B29D 3024

Patent

active

046734570

ABSTRACT:
A method and apparatus for use at the stage of a radial tire building process at which a tread and breaker, and sidewall rubbers, are added to the expanded carcass. A tread assembly is built, comprising tread rubber breaker and sidewall rubbers and is then located around the carcass which is then expanded into the tread assembly. A tread assembly former has a central portion expansible to bring side portions to a frusto-conical shape.

REFERENCES:
patent: 2672914 (1954-03-01), Weigold et al.
patent: 2822027 (1958-02-01), Hollis
patent: 2974714 (1961-03-01), Kraft
patent: 3485692 (1969-12-01), Frazier
patent: 3740293 (1973-06-01), Jones et al.
patent: 4392899 (1983-07-01), Bertoldo

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