Milan, Italy
Milan, Italy

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.


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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.


Patent
Pirelli SpA | Date: 2017-04-05

A tyre (100) for vehicle wheels comprises a belt structure comprising at least one reinforcing layer consisting of a plurality of reinforcing cords (10), each of which has an overall section comprised between 0.110 mm2and 0.135 mm2and a Taber stiffness comprised between 20 and 28 TSU; preferably, each reinforcing cord (10) consists of two metal wires (11), each of which has a diameter greater than, or equal to, about 0.27 mm and lower than 0.30 mm.


The invention relates to a system (2) for controlling a parameter (P) relative to the quality of a tyre being processed which comprises at least one system (CVA) for detecting a parameter (P) relative to one or more tyres being processed. A control unit (8e) is programmed for comparing a succession of values (V1, V2,...Vn) of the parameter (P) by comparing each value with at least one discard threshold and preferably with at least one warning threshold. The discard threshold divides a discard interval from an acceptable interval. The warning threshold belongs to the acceptable interval and defines one or more warning intervals. The control unit (8e) is also programmed for controlling the trend of the succession of values (V1, V2,...Vn) with respect to the discard threshold. The invention also relates to a method for controlling the quality of a production of tyres.


Patent
Pirelli SpA | Date: 2017-02-01

A tyre sensor device (100) comprising a connecting element (210) for connecting the tyre sensor device to a vehicle tyre, and a tyre sensor device electronics assembly (230) housed in the connecting element, wherein the tyre sensor device electronics assembly comprises a flexible printed circuit board (510) being foldable and comprising at least two printed circuit board portions (705,710,715) each having two surfaces, the at least two printed circuit board portions being suitable for the placement, on at least one surface thereof, of electronic components of the tyre sensor device, wherein said electronic components comprise at least one sensor (1125) for sensing at least one tyre parameter, said printed circuit board (510) being folded so that the tyre sensor device electronics assembly can be inserted in the connecting element with the at least two printed circuit board portions being essentially planar.


Patent
Pirelli SpA | Date: 2017-05-17

The present invention relates to a process and to an apparatus for building tyres for vehicle wheels. The apparatus comprises: at least one forming drum (3); a manipulation device (7) which has at least one grip unit (8) which is configured to support the forming drum (3) and to rotate it about a longitudinal symmetry axis (x-x) thereof; at least one station (4) for delivering semi-finished products (24, 39) which comprises at least two conveyors (17, 32) which have conveyor surfaces for the respective semi-finished products (24, 39) which can move along respective feed directions, wherein final ends (21, 36) of the conveyors (17, 32) are directed towards the manipulation device (7). The manipulation device (7) is configured to move the grip unit (8) in space in three dimensions (X, Y, Z) and the conveyors (17, 32) are superimposed on each other with the respective final ends (19, 36) situated at different heights.


A process is described for producing tyres provided with auxiliary components for vehicle wheels comprising the covering of the external surface of an expandable chamber for tyre vulcanisation and moulding apparatuses with a first substantially cross-linkable polysiloxane composition A and the covering of the radially inner surface of the impermeable elastomeric material layer of the green tyre with a second substantially non-cross-linkable polysiloxane composition B. Also described are an expandable chamber for tyre vulcanisation and moulding apparatuses, as well as a process for treating the expandable chamber.


Patent
Pirelli SpA | Date: 2017-04-05

The invention relates to a process and an apparatus (100) for producing tyres for vehicle wheels, wherein a carcass structure is built on a forming support (50) rotatable about a rotation axis (X-X). The building of the carcass structure comprises arranging a pair of support members (60) in a first operative position in which each support member (60) is axially adjacent to a respective axial end portion (50a) of the forming support (50). In particular, in the aforementioned first operative position the support members (60) are coupled with respective gripping members (40) disengaged from said forming support (50) and arranged on axially opposite sides with respect to the forming support (50). The gripping members (40) are rotatable about the rotation axis (X-X) and have a rotation speed synchronised with that of the forming support (50).


Patent
Pirelli SpA | Date: 2017-06-14

A continuous semi-finished product (12), comprising cords parallel to each other, is fed towards a cutting station and transversely cut, along a cutting line (T) parallel to the extension of the cords, in order to obtain a strip section (13). The strip section is circumferentially wound on a forming drum (D) in order to obtain a ply (3) or another annular component of a tyre (2). In order to execute the cutting, the semi-finished product (12) is positioned below a pair of blades (21) that can be moved in opposite directions, with a lower surface (12b) in abutment against a slide plate (22). The blades (21) perforate the semi-finished product in a central zone thereof and, upon lowering the slide plate, translate in opposite directions along the cutting line (T), through the semi-finished product (12) supported by a grip action applied on an upper surface (12a) thereof by suction nozzles (26) carried by grip plates (25).


Patent
Pirelli SpA | Date: 2017-06-07

The present invention is related to an apparatus and to a process for building tyres for vehicle wheels. The apparatus comprises: a forming drum (3), a plurality of delivery stations (4) for delivering semifinished products (17) and a handling device (7) configured for carrying the forming drum (3) to the delivery stations (4) for delivering semifinished products (17) and for making it rotate around a symmetry axis (x-x) thereof. The forming drum (3) has a radially outer surface (3a) and comprises a first body (20) and a second body (21) that are movable with respect to each other, wherein a relative movement between the first body (20) and the second body (21) causes the passage between a radially contracted configuration and a radially expanded configuration of the radially outer surface (3a). The handling device (7) is provided with a grip unit (8) comprising a first (41) and a second shaft (42) that are removably engageable with the drum (3).


Patent
Pirelli SpA | Date: 2017-04-05

The invention is related to a process and an apparatus for building tyres. In the process a carcass sleeve (11) comprising at least one carcass ply (3) and a pair of annular anchoring structures (5) is transferred to a shaping drum (14) comprising flange elements (16a, 16b) that are each engageable to one of said annular anchoring structures (5). The carcass sleeve (11) is shaped according to a toroidal configuration by means of mutual axial approaching of the flange elements (16a, 16b). Before shaping, annular grip elements (36) respectively carried by the flange elements (16a, 16b) are radially expanded each inside one of the annular anchoring structures (5) in order to engage the carcass sleeve (11). The annular anchoring structures (5) are moved axially apart from each other before engaging the carcass sleeve (11) by means of the annular grip elements (36).

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