Pirelli Tyre S.p.a.

Wonder Spa

Stefano Cazzanti

Alfredo Balini

Matteo Gosi

Andrea Capelli

Gabriele Foglia

Giancarlo Galli

Riccardo Dusi

Paolo Ferro

Claudio Zanichelli

Maurizio Cottarelli

Stefano Persico

A tire inflation valve associable with a tire pressure monitoring system (TPMS) sensor includes a stem ending in a head equipped with a head body and an adjustable insert associable with the TPMS sensor by a connection element and hinged to the head body to rotate about a transverse axis and allow position adjustment of the TPMS sensor. The adjustable insert allows modifying inclination of the TPMS sensor according to different use conditions.

Tire inflation valve equipped with adjusting system for a TPMS sensor

Valves for inflating tires of tired wheels, in particular tires for vehicles, wherein the term 'vehicles' refers to motor vehicles, vans, trucks, motorcycles or in general elements of locomotion on tires. More in detail, a metal valve () of the clamp-in type for inflating tires () associable with a TPMS transducer () by a locking screw () and arranged to be mounted, by a fixing system including a nut () adapted to screw onto a thread () provided on the stem () of the valve (), on a rim () of a wheel, wherein the fixing system includes an element () that irreversibly yields when a preset tightening torque is reached for the locking nut (), and wherein the element () that irreversibly yields is associated with the stem () of the valve ().

Metal valve of the clamp-in type for inflating tyres associable with a TPMS transducer

Disclosed are valves for inflating the tires of rubber wheels, in particular of vehicles, where the term vehicles is intended as motor vehicles, trucks, motorcycles or in general road transport vehicles. More in detail, the a valve () of snap-in type for rubber wheels includes: a hollow valve body () of cylindrical shape arranged for connecting the inside of the rubber wheels with the outside environment and allowing passage of air; an actuating mechanism () of the valve () arranged inside the valve body (); a rubber ring (), suitably shaped, arranged for partially covering the valve body (), wherein the valve body () includes at least one portion () made of plastic material.

Snap-in valve for rubber wheels

An apparatus for manufacturing tires for vehicle wheels includes devices designed to form a green tire, a vulcanization mold having holding walls defining a molding cavity, and devices for transferring the green tire into the molding cavity. The vulcanization mold 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 molding cavity.

Apparatus for manufacturing tyres for vehicle wheels

In a method of manufacturing tires for vehicle wheels, a green tire, once formed, is transferred into a vulcanization mold and pressed against the holding walls of a molding cavity. Concurrently with the pressing step, a fluid present between the green tire and the holding walls is evacuated through vent valves. The tire is brought into contact with the closing head of each valve so as to push it toward a closed position at which the closing head forms a contact seat spaced apart from the inner surface of the molding cavity in order to define an embedding recess between the inner surface of the molding cavity and the closing head.

Method and apparatus for manufacturing tyres for vehicle wheels

In a method for manufacturing tires for vehicle wheels, a green tire, once formed, is transferred into a vulcanization mold and pressed against the holding walls of a molding cavity. Concurrently with the pressing step, a fluid present between the green tire and the holding walls is evacuated through vent valves. The tire 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 molding cavity and includes at least one grip element for the tire blend, so that the closure member is pulled toward the open position while the molded and cured tire is moved away from the inner surface of the molding cavity.

A valve for inflating tires of tired wheels associable with a transducer provided with electronic sensors for detection and transmission of certain operating parameters of the tire. The valve is arranged for being mounted on a rim of a wheel for vehicles so that the valve projects outside the rim and the transducer is positioned within a chamber delimited by the tire and by the rim. The valve includes signaling units which, once the valve has been mounted, are visible from the outside of the wheel. The signaling units are correlated univocally with the orientation of the transducer, and are arranged for indicating the position assumed by the transducer inside said chamber.

Tyre inflation valve connectable to a transducer

A tire enclosed in a vulcanization mold is supplied with heat to cause vulcanization of same. By thermal-detection probes introduced into the tire monitoring of the cross-linking degree reached in at least one first detection region and one second detection region disposed within the tire is carried out. Head supply is stopped on occurrence of the following conditions: (i) the crosslinking degree measured in at least one of the detection regions reaches a first reference value higher than 90% of the whole cross-linking; and (ii) the cross-linking degree measured in each detection region has overcome a second pre-established reference value not exceeding about 50% of the whole cross-linking.

Method of vulcanising pneumatic tyres and apparatus therefor

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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Cremona, Italy

Stefano Cazzanti