Apparatus for the injection molding of radial endless tire-tread

Details Apparatus for the injection molding of radial endless tire-tread Apparatus for the injection molding of radial endless tire-tread

1980-09-09

1982-01-05

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Endless surface means to shape fluent material

425542, 425129R, 264311, B29C 504, B29F 100, B29C 600

Patent

active

043091610

ABSTRACT:
An apparatus for the injection molding of tire treads on reinforcing belts (tire-tread rings) comprises a belt support which is substantially incompressible but is yieldably mounted on a back-up structure and defines a mold cavity with a pair of half shells which close around the support. When the injection-molded tread is released by opening of the half shells, the support can be relaxed and the tread structure picked up by a transfer ring.

REFERENCES:
patent: 2615203 (1952-10-01), Du Pree
patent: 3645655 (1972-02-01), Beneze
patent: 4043725 (1977-08-01), Schmidt
patent: 4257994 (1981-03-01), Leblanc et al.

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