Pirelli Tyre S.p.a.

Marco Fabbretti

Maurizio Marchini

Cesare Emanuele Amurri

Andrea Crepaldi

Stefano Boracco

Erika Vaniglia

Ivan Gildo Boscaino

Stefano Balia

Graziano Fregolent

Stefano Rosario Mervic

Gildo Boscaino

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

A method for controlling the thickness of a continuous elongated element made of elastomeric material, applied according to coils wound on a forming support, includes: advancing a head end of the continuous elongated element toward the forming support; subjecting, during the advancement, the continuous elongated element to a first stretching with a first stretch coefficient before applying on the forming support; and subjecting, during the advancement, the continuous elongated element to a second stretching with a second stretch coefficient during the application on the forming support. During the first stretching, a span of the continuous elongated element adjacent to the head end is stretched with a supplementary stretch coefficient greater than the first stretch coefficient, in a manner so as to confer, also to the span adjacent to the head end, a stretch and a section similar or substantially equivalent to those of the rest of the continuous elongated element.

Method for controlling the thickness of a continuous elongated element made of elastomeric material in a process for building tyres

A reinforcement annular structure of a tyre being processed is formed by arranging a forming drum externally carrying a deposition surface; arranging an application member supported in thrust relation toward the deposition surface; longitudinally guiding a continuous elongated element toward a point of application between the deposition surface and a work surface presented by the application member; and winding the continuous elongated element circumferentially around the deposition surface in order to form coils that are axially side-by-side each other. During winding, the work surface of the application member operates in abutment relation against at least one of the cons previously formed by the continuous elongated element.

Method, process and apparatus for building tyres for vehicle wheels

A process and an apparatus for labelling tires for vehicle wheels. The apparatus includes an application head with a support surface for a label to be applied, at least one label holder feeder and movement devices connected to the application head. The movement devices are configured for moving the application head between the label holder feeder for picking up a label, and an application zone of the label to a green tire. The apparatus further includes a guide device located at the application zone. The guide device includes a guide extending along a predefined path and a support movable along the guide.

Process and apparatus for applying labels to tyres for vehicle wheels

A method for managing the continuous feeding of an elongate element wound on reels to a station for building a tire, wherein the elongate element is continuously supplied from an unwinding device of successive reels. When the terminal end of the elongate element wound on a first reel leaves said first reel, the method provides for: the first reel to be moved away from the unwinding device on a first movable carriage; a second reel, successive to the first reel, and mounted on a second movable carriage, to be positioned in place of the first reel; and the terminal end of the elongate element previously wound on the first reel, to be joined to the starting end of the elongate element wound on the second reel.

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Milan, Italy

Marco Fabbretti