Apparatus for molding tires with a reinforcement below the tread

Details Apparatus for molding tires with a reinforcement below the tread Apparatus for molding tires with a reinforcement below the tread

1978-07-17

1979-05-22

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

With direct application of magnetic force to manipulate...

425129R, 425542, 425577, B29F 100, B29C 600, B29H 502, B29H 508

Patent

active

041556879

ABSTRACT:
An apparatus for molding tires with a reinforcement below the tread surface comprises a support, a multi-part mold including an inner core, upper and lower mold parts coaxial with the core and respectively abutting against opposite ends of the latter and a plurality of mold segments arranged about the core and movable with respect thereto between an open and a closed position engaging in the latter position said upper and lower mold parts, a plurality of gripper arms mounted circumferentially spaced from each other on said support about the mold and having free ends on which grippers, preferably in the form of magnets, are provided for releasably holding annular reinforcements and for introducing the reinforcements into the mold while the mold segments are in the open position, and holders on the mold segments for holding the reinforcements introduced into the molds in fixed position during molding of the tire while said gripper arms are withdrawn.

REFERENCES:
patent: 2770013 (1956-11-01), Crooker
patent: 2808621 (1957-10-01), Torrey
patent: 3381736 (1968-05-01), Ford et al.
patent: 3461502 (1969-08-01), Tink et al.
patent: 3551957 (1971-01-01), Ramm
patent: 3910748 (1975-10-01), Kopernik
patent: 4043725 (1977-08-01), Schmidt
patent: 4059375 (1977-11-01), Koch et al.

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