Method and apparatus for manufacturing tyres for vehicle wheels

Details Method and apparatus for manufacturing tyres for vehicle wheels Method and apparatus for manufacturing tyres for vehicle wheels

2004-12-28

2011-11-01

Tucker, Philip (Department: 1745)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S394100

Reexamination Certificate

active

08048247

ABSTRACT:
In a method for manufacturing tyres for vehicle wheels, a green tyre, once formed, is transferred into a vulcanisation mould and pressed against the holding walls of a moulding cavity. Concurrently with the pressing step, a fluid present between the green tyre and the holding walls is evacuated through vent valves. The tyre is brought into contact with the closing head of each valve so as to push it toward a closed position of the valve itself. The closing head has a distal portion facing the moulding cavity and includes at least one grip element for the tyre blend, so that the closure member is pulled toward the open position while the moulded and cured tyre is moved away from the inner surface of said moulding cavity.

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