Pirelli Tyre S.p.a.

Pirelli S.p.a.

Politecnico Di Torino

Erika Vaniglia

Stefano Boracco

Cristiano Puppi

Gianni Mancini

Davide Lupo Conti

Fabio Regoli

Marco Fabbretti

Maurizio Marchini

Cesare Emanuele Amurri

Christian De Col

Ivan Gildo Boscaino

Albert Berenguer

Stefano Sangiovanni

Antonio Monterosso

Matteo Accorra'

Lorenzo Avanzini

Nicola Amati

Carlo Genta

Pietro Bersezio

A method and a related station for applying a sensing device to a tyre are described. A tape-shaped support with removably fixed sensing devices is advanced, to feed the sensing devices in sequence. A handling device is then rigidly coupled to a sensing device, maintaining at least a portion of an adhesion surface of the sensing device removably fixed to a support. The sensing device is then completely separated from the support, taken away by the handling device, and applied to an inner surface of a tyre by the handling device.

Method and station for applying a sensing device to a tyre

The present invention is relative to a method for building tyres for vehicle wheels and to a transfer device () of an apparatus for building tyres for vehicle wheels. The centring device () comprises: an annular support structure (); gripping elements () arranged as a ring on the annular support structure () and having gripping surfaces () directed radially towards a longitudinal axis (Z-Z) of the transfer device (); a measurement device () mounted on the annular support structure (). The measurement device () is configured for detecting the centring between the transfer device () and a drum () situated within the transfer device (). The transfer device () is configured for picking up the tyre being processed () from the drum () on which the tyre being processed is arranged or for depositing a tyre being processed () on the drum ().

Method for building tyres and transfer device of an apparatus for building tyres for vehicle wheels

In a shaping station (), a toroidal forming drum () is positioned within a carcass sleeve () comprising at least one carcass ply () associated with a pair of beads () in radially inner position. The carcass sleeve () is toroidally shaped by radial expansion of the forming drum (). The forming drum () carrying the shaped carcass sleeve () is removed from the shaping station (). Tyre components () are applied externally on the shaped carcass sleeve (), carried by the forming drum (). At the end of the shaping and during the application of the tyre components (), axially inner sides of said beads () are arranged axially against respective circumferential axially outer portions (S) of an abutment surface (S) carried by the expanded forming drum (), having shape corresponding to an inner shape of the shaped carcass sleeve ().

Process and plant for building tyres for vehicle wheels

Apparatus for applying noise-reducing elements to a tyre for vehicle wheels that has a radially inner surface with a service area and a circumferential dimension. The apparatus determines the position in circumferential direction of the service area, determines the position in circumferential direction of a target area on the radially inner surface of the tyre based on the position in circumferential direction of the service area, and applies a noise-reducing element the target area. The position in circumferential direction of the service area is determined by circumferentially inspecting the radially inner surface of the tyre starting from a reference position, detecting the angular position of the service area with respect to the reference position and determining the position in circumferential direction of the service area based on the angular position and on the circumferential dimension of the radially inner surface of the tyre.

Apparatus for applying noise-reducing elements to a tyre for vehicle wheels

A station for checking the formation of beads of tyres, including: a forming drum for arranging a carcass sleeve with formed beads with the carcass sleeve in rotation, an image acquisition system for acquiring at least an image of a circumferential portion of external surface including the respective edges of the end flaps turned up; a processing unit for processing the image in order to determine a circumferential trend of the axial distance of each edge from an axial reference plane and for detecting possible defects of the beads as a function of such trend.

Station for checking formation of beads of tyres

Process and an apparatus for applying noise-reducing elements to a tyre for vehicle wheels that has a radially inner surface with a service area and having a circumferential dimension. The process determines the position in circumferential direction of the service area on the radially inner surface of the tyre, determines the position in circumferential direction of a target area on the radially inner surface of the tyre based on the position in circumferential direction of the service area, and applies a noise-reducing element at the target area. The position in circumferential direction of the service area is determined by circumferentially inspecting the radially inner surface of the tyre starting from a reference position, detecting the angular position of the service area with respect to the reference position and determining the position in circumferential direction of the service area based on the angular position and on the circumferential dimension of the radially inner surface of the tyre.

Process for applying noise-reducing elements to a tyre for vehicle wheels

Method for checking the formation of beads of tyres including: arranging a carcass sleeve with formed beads with the carcass sleeve in rotation, acquiring at least an image of a circumferential portion of external surface including the respective edges of the end flaps turned up; processing the image in order to determine a circumferential trend of the axial distance of each edge from an axial reference plane; and detecting possible defects of the beads as a function of such trend.

Method for checking formation of beads of tyres

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Milan, Italy

Erika Vaniglia