Pirelli & C. SpA is a multinational company based in Milan, Italy, listed on Milan Stock Exchange since 1922. The company, the world’s fifth-largest tyre manufacturer behind Bridgestone, Michelin, Continental and Goodyear, is present in over 160 countries, has 19 manufacturing sites around the world and a network of around 10,000 distributors and retailers.Pirelli has been sponsoring sport competitions since 1907 and is currently the exclusive tyre supplier for the Formula One Championship for 2011-2016 and for the FIM World Superbike Championship.While tyre manufacturing represents 99% of Pirelli’s revenue, the company has also launched fashion project PZero, a high-tech sportswear brand, and operates in renewable energy and sustainable mobility through Pirelli Prodotti e Servizi per l’Ambiente.Pirelli has published its Pirelli Calendar since 1964, which has featured the contribution of famous photographers over the years. The 2013 edition was commissioned to war photographer Steve McCurry.Pirelli’s headquarters are located in Milan’s Bicocca district, an area that is home to the rapidly growing Italian University, Università degli studi di Milano-Bicocca, and cultural locations such as the Teatro degli Arcimboldi and Hangar Bicocca, an exhibition centre for contemporary art that Pirelli founded. Wikipedia.
Pirelli SpA | Date: 2016-11-23
A method of controlling deposition of a continuous elongated element in building a tyre for vehicle wheels, includes: feeding an initial end of a continuous elongated element of elastomeric material through a slit bounded by a first roller and a second roller of a calender; retaining the continuous elongated element against a peripheral surface of the first roller; laying the initial end of the continuous elongated element against a deposition surface; rotating the calender around an oscillation axis that is substantially coincident with a contact generatrix between the first roller and the second roller; and dragging along the continuous elongated element together with the deposition surface.
Pirelli SpA | Date: 2016-03-03
A process and apparatus for manufacturing tyres for vehicle wheels includes the step of building, on a forming support, a belt structure including at least one reinforcing structure of the so-called zero-degree type. The reinforcing structure is formed by depositing a continuous elongated reinforcing element on a deposition surface arranged in a radially outer position with respect to the forming support. The aforementioned deposition includes the step of exerting, through at least one element made from magnetic material, a magnetic attraction on a portion of the continuous elongated reinforcing element arranged at at least one pressing member and moving said at least one pressing member toward the forming support until the continuous elongated reinforcing element is brought into contact with the deposition surface.
Pirelli SpA | Date: 2016-05-20
A method for controlling the manufacturing of tires for wheels of vehicles includes: extracting a cured tire from a curing station, in which the cured tire has accumulated heat during a curing process; and verifying the presence of possible defects or imperfections in that cured tire. The verification includes detecting first electromagnetic radiations representative of a heat emission from different portions of the cured tire while the cured tire frees the accumulated heat; providing at least one output signal representative of the first electromagnetic radiations detected to allow an analysis of the cured tire and to verify the presence of the possible defects or imperfections. A plant for the manufacturing of tires for wheels of vehicles is also described.
Pirelli SpA | Date: 2016-05-19
A robot arm having seven axes of actuation imparts to a toroidal support a circumferential distribution motion about its own geometric axis simultaneously with controlled transverse distribution displacements in front of a dispensing organ of a strip of elastomeric material. The strip thus forms a plurality of turns, the orientation and mutual superposition whereof are controlled in such a way as to control the thickness variations to be conferred to a component of a tyre being manufactured, based on a pre-determined laying scheme pre-set on an electronic computer. The rotation of the toroidal support is controlled in such a way as to obtain a peripheral speed of application exceeding the theoretical feeding rate of the strip, able to be increased or decreased as needed to form turns with reduced or, respectively, enlarged cross section.
Pirelli SpA | Date: 2016-08-09
Two auxiliary support members are operatively engaged with a building drum, in axially approached relationship with respective halves of the drum itself, each auxiliary member having a circumferential rest surface extending in the continuation of an outer circumferential surface of the building drum itself. Applied around the outer circumferential surface of the building drum is at least one carcass ply having axially opposite end flaps each lying on the circumferential rest surface of the respective auxiliary support member. A pair of auxiliary shaping members engaged with the building drum in place of the auxiliary support members, each act against a circumferential abutment edge carried by the building drum, to enable the carcass ply to be shaped into a toroidal configuration concurrently with mutual approaching of the halves of the building drum.
Pirelli SpA | Date: 2016-07-05
A process for building tyres for vehicle wheels are disclosed, wherein said building process comprises the following steps carried out in a carcass structure building line: a) associating a pair of support rings with a forming drum in a work station for associating support rings; b) building at least one structural component of the tyre being processed on the forming drum provided with said pair of support rings in at least one work station of the carcass structure building line; c) removing the pair of support rings from the forming drum in a work station for removing support rings; d) transferring the pair of support rings dissociated from the forming drum in a temporary storage for support rings; e) building at least one further structural component of the tyre being processed on the forming drum without the pair of support rings in a work station of the carcass structure building line.
Pirelli SpA | Date: 2016-04-05
An apparatus for building a tire for a vehicle wheel includes at least one forming support and at least one assembly device for assembling components of elastomeric material on the forming support. The at least one assembly device includes at least one dispensing device for dispensing a continuous elongated element of elastomeric material and at least one application device for applying the continuous elongated element in a form of coils disposed in side by side relationship or at least partly superposed, wound on the forming support and forming the at least one component of elastomeric material of the tire. The apparatus also includes at least one pressure device operatively acting on an applied portion of the continuous elongated element, wherein the pressure device includes a central roller and two side rollers, each laterally offset relative to the central roller and on the opposite side relative to the other side roller.
Pirelli SpA | Date: 2016-02-18
A process for manufacturing a tyre by the steps of producing and assembling the tyre structural elements on a toroidal support to form a green tyre, and the step of precuring at least an inner surface of the green tyre by heating the toroidal support. The radially inner surface of the toroidal support is provided with a plurality of protruding elements to reduce the time required for the outer surface of the toroidal support to reach a temperature which is suitable for ensuring a uniform and homogeneous precuring of the inner surface of the green tyre, preferably of the inner surface and the bead regions of the green tyre.
Pirelli SpA | Date: 2016-04-13
A pneumatic vehicle tire includes a carcass extending between two bead cores. A belt structure is provided between the carcass and a tread strip which is connected with a pair of sidewalls. A runflat reinforcement is arranged at the inner side of each sidewall. A reinforcer is arranged within each bead portion of the tire. A bead filler extends from the bead ring along the reinforcer. To improve the runflat performance, handling and comfort properties of such a runflat tire, the reinforcer is arranged at the inner side of the bead filler. The reinforcer includes metal cords. The bead filler which extends beyond an end of the reinforcer, is made of a soft rubber compound with an IHRD harness lower than 80.
Pirelli SpA | Date: 2016-06-20
A process for manufacturing tyres for vehicle wheels, comprising the step of building on a forming support a carcass structure comprising at least one carcass ply and, at at least one end edge of the carcass ply, at least one annular anchoring structure comprising at least one substantially circumferential annular insert and at least one filling insert associated to said at least one substantially circumferential annular insert. The step of building the carcass structure comprises the steps of positioning the annular anchoring structure on the carcass ply by moving the annular substantially circumferential insert into contact with an end edge of the carcass ply by means of a special positioning member, pulling down the filling insert on the end edge of the carcass ply and turning up a free end portion of the end edge of the carcass ply so as to form a turned up end portion of the carcass ply including said annular anchoring structure. The pulling down of the filling insert on the end edge of the carcass ply is carried out by a special pulling down member while the substantially circumferential annular insert is retained into a contact position with the end edge of the carcass ply by said positioning member.