| 摘要 |
An apparatus for manufacturing tyres for vehicle wheels includes devices designed to form a green tyre, a vulcanisation mould having holding walls defining a moulding cavity, and devices for transferring the green tyre into the moulding cavity. The vulcanisation mould includes a plurality of vent valves, at least one of which includes a duct and a closure member having a closing head that is axially movable relative to the duct. The closing head is movable between a closed position, at which the closing head forms a contact seat, and an open position, at which the closing head and inner wall confine a passage for connection with the moulding cavity. |
