Patents Assigned to Pirelli Tyre S.p.A.
  • Publication number: 20230286322
    Abstract: A car tyre (1), in particular a high or ultra high performance car tyre also suitable for use on track, is described. The tread band (8) of the tyre has a central region (L1) having a limited extension, separated from two large shoulder regions, respectively an outer shoulder region (L2) and inner shoulder region (L3). At least the outer shoulder region (L2) and the central region (L1) have a set, limited in type, number, size and extension, of transverse grooves. In the tread band (8) there are also annular portions (S1, S2, M) substantially lacking grooves such that the void-to-rubber ratio being zero.
    Type: Application
    Filed: September 8, 2021
    Publication date: September 14, 2023
    Applicant: Pirelli Tyre S.p.A.
    Inventors: Roberto BOLZONI, Diego Ettore SPEZIARI, Andrea SCOTTI, Stefano BIZZI
  • Publication number: 20230257552
    Abstract: The present invention relates to compositions for elastomeric compounds for tyres, comprising monotetrazole compatibilizing agents characterised by precise activation temperatures, tyre components and tyres for vehicle wheels which comprise them. Advantageously, the present monotetrazole compatibilizing agents allow the breaking properties of the compounds to be improved while maintaining a high compatibilisation of the filler.
    Type: Application
    Filed: June 25, 2021
    Publication date: August 17, 2023
    Applicant: Pirelli Tyre S.p.A.
    Inventors: Luca GIANNINI, Luciano TADIELLO, Antonio PAPAGNI, Mauro MONTI
  • Publication number: 20230241921
    Abstract: A tyre for vehicle wheels comprises a carcass structure including at least one carcass ply having a plurality of hybrid reinforcing cords (10). Each hybrid reinforcing cord (10) comprises at least two strands (20a, 20b) twisted together with a predetermined twisting pitch (P). Each of said at least two strands (20a, 20b) comprises at least one monofilament textile wire made of polyester fibres and at least one multifilament textile yarn (22a, 22b) comprising a plurality of textile filaments (23a, 23b) made of aramid and/or polyester and/or rayon fibres. In any cross section of the hybrid reinforcing cord (10), said at least one monofilament textile wire is at least partially embedded in the filaments (23a, 23b) of said at least one multifilament textile yarn (22a, 22b).
    Type: Application
    Filed: June 14, 2021
    Publication date: August 3, 2023
    Applicant: Pirelli Tyre S.p.A.
    Inventors: Simone AGRESTI, Guido Luigi DAGHINI, Luca CAMOSI, Davide MIAZZO
  • Publication number: 20230234400
    Abstract: All season tyre (1) for SUVs and Crossovers; the tyre having a tread band (7) provided with a plurality of sipes (21,22,23,24,25,26) regularly and homogeneously arranged, and a wide central region (LI) provided with three rows of blocks, at least wo of which are provided with transverse grooves only slightly inclined relative to a direction orthogonal to the equatorial plane. The central region (LI) lacks circumferential annular portions having a low void-to-rubber ratio located adjacent to central annular portions having a medium or high void-to-rubber ratio.
    Type: Application
    Filed: July 2, 2021
    Publication date: July 27, 2023
    Applicant: Pirelli Tyre S.p.A.
    Inventors: Giulio Lorenzo DUPRE', Roberto BOLZONI, Diego Ettore SPEZIARI, Alberto Maria PUTTI
  • Publication number: 20230234403
    Abstract: The present invention relates to self-supporting tyres for vehicle wheels having sidewall reinforcement inserts (113) with reduced rigidity. These tyres have a good mileage in flat running conditions, greater comfort and significantly reduced rolling resistance compared to known self-supporting tyres, with higher modulus sidewall reinforcement inserts.
    Type: Application
    Filed: June 16, 2021
    Publication date: July 27, 2023
    Applicant: Pirelli Tyre S.p.A.
    Inventors: Emiliano RESMINI, Davide MIAZZO, Luca GIANNINI, Thomas HANEL
  • Publication number: 20230234398
    Abstract: A tyre for vehicle wheels comprises a support structure and a tread band arranged in a radially outer position with respect to the support structure. The support structure comprises at least one reinforcing layer including a plurality of hybrid reinforcing cords (10?) each having a metallic wire (21) twisted together with a multifilament textile yarn (22) comprising a plurality of filaments (23). In any cross section of each of said hybrid reinforcing cords (10?), the metallic wire (21) is at least partially embedded in the filaments (23) of the multifilament textile yarn (22).
    Type: Application
    Filed: May 28, 2021
    Publication date: July 27, 2023
    Applicant: Pirelli Tyre S.p.A.
    Inventors: Simone AGRESTI, Guido Luigi DAGHINI
  • Publication number: 20230219379
    Abstract: The present invention relates to a self-supporting tire for vehicle wheels comprising a carcass structure comprising at least one carcass ply having a plurality of hybrid reinforcing cords (10) each comprising at least two strands (20) twisted to each other with a predetermined stranding pitch (P), wherein each of said at least two strands (20) comprises at least one monofilament textile thread (21) at least partially embedded in the filaments (22a) of at least one multifilament textile yarn (22) and a pair of sidewall reinforcement inserts (113), where at least one of said sidewall reinforcement inserts comprises a vulcanised elastomeric compound which has a dynamic shear modulus value G equal to or less than 1.25 MPa measured at 70° C., 10 Hz, 9% deformation according to the RPA method reported in the present description.
    Type: Application
    Filed: June 16, 2021
    Publication date: July 13, 2023
    Applicant: Pirelli Tyre S.p.A.
    Inventors: Simone AGRESTI, Thomas HANEL, Emiliano RESMINI, Luca GIANNINI
  • Patent number: 11685198
    Abstract: The process for producing tyres comprises arranging no more than four sets of noise-reducing elements, each set being associated with a respective dimension Lx different from each other; feeding in succession a set of tyres for vehicle wheels, having different values C of the inner circumferential extension; for each inner circumferential extension value, determining a respective number nx of noise-reducing elements for each set of noise-reducing elements, with x ranging from 1 to N, wherein for at least one value of the inner circumferential extension at least two respective numbers nx differ from 0; for each tyre, collecting from each set of noise-reducing elements the respective number nx of noise-reducing elements and applying the collected noise-reducing elements in circumferential sequence along an inner surface of the tyre, with dimension Lx oriented circumferentially.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: June 27, 2023
    Assignee: PIRELLI TYRE S.p.A.
    Inventors: Cristiano Puppi, Gianni Mancini, Stefano Sangiovanni
  • Publication number: 20230167283
    Abstract: The present invention relates to a tyre for vehicle wheels, in particular automobile wheels, characterised by a tread comprising at least one iso-styrene/trans-butadiene/terpene random terpolymer. Said tread is characterised by a greater tear resistance and a greater grip of the tyre to the roadbed.
    Type: Application
    Filed: May 7, 2021
    Publication date: June 1, 2023
    Applicant: Pirelli Tyre S.p.A.
    Inventors: Luca GIANNINI, Silvia GUERRA, Antonio PROTO, Carmine CAPACCHIONE, David Hermann LAMPARELLI, Veronica PARADISO
  • Patent number: 11661498
    Abstract: The present invention relates to a process for preparing a vulcanisable elastomeric compound for tyres, characterised by the use of a particular vulcanisation-activating filler and by the methods of adding additives, in particular the compatibilising agent (silane), which occurs only after completion of the reaction between the activating filler comprising zinc and the fatty acid (stearic acid). The present process, advantageous in itself due to the possible reduction of the times and of the energy required for vulcanisation, allows preparing compounds which, with the same performances compared to the traditional ones, can have a reduced zinc content, and consequently a lower release thereof from tyres during use at an environmental level.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: May 30, 2023
    Assignee: PIRELLI TYRE S.p.A.
    Inventors: Antonio Susanna, Raffaella Donetti, Luca Giannini, Thomas Hanel, Roberto Scotti, Barbara Di Credico
  • Publication number: 20230158763
    Abstract: The present invention is relative to a method for building tyres for vehicle wheels and to a transfer device (16) of an apparatus for building tyres for vehicle wheels. The centring device (16) comprises: an annular support structure (18); gripping elements (19) arranged as a ring on the annular support structure (18) and having gripping surfaces (20) directed radially towards a longitudinal axis (Z-Z) of the transfer device (16); a measurement device (30) mounted on the annular support structure (18). The measurement device (30) is configured for detecting the centring between the transfer device (16) and a drum (12, 13) situated within the transfer device (16). The transfer device (16) is configured for picking up the tyre being processed (14, 15) from the drum (12, 13) on which the tyre being processed is arranged or for depositing a tyre being processed (14, 15) on the drum (12, 13).
    Type: Application
    Filed: January 18, 2023
    Publication date: May 25, 2023
    Applicant: Pirelli Tyre S.p.A.
    Inventors: Erika VANIGLIA, Stefano BORACCO, Marco FABBRETTI
  • Publication number: 20230150219
    Abstract: Method for controlling the feed of semifinished products in a tyre building process, said method comprising: feeding a semifinished product (10) into a building station (30) adapted to build, through said semi-finished product (10), a structural component of a tyre; performing, in an acquisition zone (AZ), a verification to verify the presence of at least one defect of said semifinished product (10); generating a notification signal (NS) as a function of said verification; activating, as a function of said notification signal (NS), a discard device (60), configured for discarding at least one portion of said semifinished product (10) comprising said at least one defect.
    Type: Application
    Filed: January 19, 2023
    Publication date: May 18, 2023
    Applicant: Pirelli Tyre S.p.A.
    Inventors: Cesare Emanuele AMURRI, Nicola IL GRANDE, Davide Lupo CONTI
  • Patent number: 11648743
    Abstract: A process and apparatus for applying noise reducer elements to tyres. Each noise reducer element has an anchoring surface coated with an adhesive layer. The anchoring surface is illuminated with a reference radiation. The radiation emitted by the anchoring surface is detected; and a digital image representative of the anchoring surface is determined as a function of the emitted radiation. Each pixel of the digital image is associated with a respective brightness value representative of the amount of adhesive present in an area of the anchoring surface corresponding to such each pixel. One or more noise reducer elements are applied on the radially inner surface of a tyre.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: May 16, 2023
    Assignee: PIRELLI TYRE S.P.A.
    Inventors: Ivan Gildo Boscaino, Albert Berenguer, Cristiano Puppi, Gianni Mancini
  • Patent number: 11639079
    Abstract: A process for applying noise-reducing elements to a tyre for vehicle wheels. A plurality of noise-reducing elements are arranged on a feeding belt movable along a predetermined feeding direction. The noise-reducing elements are subsequently aligned along the feeding direction and brought into mutual contact, to then be transferred onto a service plane arranged downstream of the feeding belt along the feeding direction and having, on an upper surface thereof, a continuous film which supports a layer of adhesive material. The layer of adhesive material is applied onto a lower surface of each of the noise-reducing elements taking it from the continuous film. The noise-reducing elements are then transferred one by one onto a conveyor belt arranged downstream of the service plane along the feeding direction. The noise-reducing elements are finally positioned one by one on a radially inner surface of a tyre.
    Type: Grant
    Filed: August 1, 2022
    Date of Patent: May 2, 2023
    Assignee: PIRELLI TYRE S.P.A.
    Inventors: Ivan Gildo Boscaino, Maurizio Marchini, Adriano Girotto
  • Patent number: 11633983
    Abstract: The present invention refers to a tyre for bicycle wheels comprising a tread band containing an anti-puncture system capable of having high resistance to the penetration of foreign bodies, simultaneously ensuring optimal handling performances. In particular the present invention regards a tyre for bicycle wheels comprising: a carcass structure; and—a tread band arranged in radially outer position with respect to the carcass structure; wherein said tread band is made by means of vulcanisation of a cross-linkable elastomeric composition comprising a reinforcement system constituted by modified silicate fibres of nanometric size and fibrillated polymer fibres of micrometric size.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: April 25, 2023
    Assignee: PIRELLI TYRE S.p.A.
    Inventors: Paolo Brivio, Fabio Meni, Luca Giannini, Luciano Tadiello, Pierangelo Misani
  • Patent number: 11633986
    Abstract: The present invention relates to a tyre for bicycle wheels comprising a tread band containing an anti-puncture system capable of offering high resistance to the penetration of foreign bodies.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: April 25, 2023
    Assignee: PIRELLI TYRE S.p.A.
    Inventors: Laura Erbizzoni, Vinicius Augusto Dal Bello Lindo, Pierangelo Misani
  • Patent number: 11635294
    Abstract: A station for checking a tyre for vehicle wheels. The checking station includes a background with a support surface lying on a plane perpendicular to a reference axis, an image acquisition apparatus to acquire an image of the tyre arranged with a first outer lateral surface in contact with the support surface and a second outer lateral surface facing the image acquisition apparatus, an illumination system and a computer for generating a working image from the acquired image. The image acquisition apparatus, the illumination system and of the background are arranged to generate a contrast, in the working image, between the entire second outer lateral surface of the tyre and an area circumferentially surrounding the tyre.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: April 25, 2023
    Assignee: PIRELLI TYRE S.P.A.
    Inventors: Vincenzo Boffa, Luca Tersi, Valeriano Ballardini
  • Publication number: 20230124516
    Abstract: A green tyre (2) for bicycles is built, comprising at least one carcass ply (4) having axially opposite end flaps (4a) engaged with respective bead cores (5) and a tread band (6) applied in a radially outer position around said at least one carcass ply (4). The built tyre (2) removed from the building drum, is profiled so as to translate the tread band (6) in a radially outer direction with respect to the bead cores (5), so as to impart a cross-sectional convex profile to the tyre (2) in a radially outer direction. The profiled tyre is engaged by means of a transfer member (31) comprising a gripping device (30) which retains it at the radially outer surface (2b) so as to maintain said cross-sectional convex profile in a radially outer direction.
    Type: Application
    Filed: August 5, 2022
    Publication date: April 20, 2023
    Applicant: Pirelli Tyre S.p.A.
    Inventors: Davide Lupo CONTI, Bruno LODI, Gian Luigi BOSIO
  • Patent number: 11623187
    Abstract: The invention relates an extrusion device (100) for extruding a semi¬finished product made of elastomeric material, comprising an extrusion body (10) extending along a feeding direction (A) and a pump (20) arranged downstream of the extrusion body (10) along said feeding direction (A). The extrusion body (10) comprises a hopper (30) for loading an elastomeric material and an extrusion screw (50) extending along said feeding direction (A) and having an inlet portion (50a) arranged close to the hopper (30) and an exit portion (50b) arranged close to the pump (20). The extrusion body (10) also comprises a motorised roller (40) arranged at the inlet portion (50a) of the extrusion screw (50) and configured to receive the elastomeric material from the hopper (30) and feed it to the extrusion screw (30). The extrusion screw (50) has a length and a diameter such that the ratio between length and diameter is comprised between 4 mm and 8 mm.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: April 11, 2023
    Assignee: PIRELLI TYRE S.p.A.
    Inventors: Cesare Emanuele Amurri, Gaetano Lo Presti
  • Patent number: D983125
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: April 11, 2023
    Assignee: PIRELLI TYRE S.p.A.
    Inventors: Mario Mariani, Sandro Gallo