Patent ID: 8506274

Claim:
An apparatus for manufacturing a tyre for a vehicle wheel, comprising: devices designed to form a green tyre; at least one vulcanisation mould, having holding walls defining an inner surface of a moulding cavity, said inner surface conforming in shape to the final conformation to be given to the green tyre, and said vulcanisation mould comprising a plurality of vent valves for said moulding cavity, at least one of said valves comprising: a duct having an inlet end opening onto said inner surface of said moulding cavity, and a closure member having a closing head that is axially movable relative to the duct between: a closed position, at which said closing head forms a contact seat with an inner wall of said duct, said contact seat being defined in said inlet end; and an open position, at which said closing head and inner wall of said duct confine a passage for connection with said moulding cavity, said closing head having at least one grip element to be mechanically engaged with the green tyre pressed against the inner surface of the moulding cavity in order to bring the closure member back to the open position when the tyre is separated from said inner surface.