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公开(公告)号：US11161944B2
公开(公告)日：2021-11-02
申请号：US16469849
申请日：2017-12-18
发明人： Luciano Tadiello , Valeria Rosaria Cipolletti , Luca Giannini , Thomas Hanel , Maurizio Galimberti , Roberto Scotti , Barbara Di Credico , Franca Morazzoni , Massimiliano D'Arienzo , Irene Tagliaro
IPC分类号： C08J3/22 , C08K3/011 , B60C1/00 , C08K3/06 , C08K3/36 , C08K7/10 , C08L7/00 , C08L9/02 , C08L9/06
摘要： The present invention regards a solid master elastomeric composition (masterbatch, MB) comprising silicate fibres with needle-shaped morphology of nanometric size, characterised by high fibre content and uniformity, a process advantageous for the preparation thereof and its use in manufacturing tyres for vehicles. Advantageously the present elastomeric composition allows minimising the drawbacks associated with the handling of the powdery fibres in the manufacturing of compounds for tyres, without altering the final performances thereof.
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公开(公告)号：US11161374B2
公开(公告)日：2021-11-02
申请号：US16662459
申请日：2019-10-24
申请人： PIRELLI TYRE S.P.A.
摘要： A car tyre having a tread that extends in axial direction for a width the tread including a central portion arranged across an equatorial plane, and two lateral portions opposed with respect to the central portion. The central portion is separated from the lateral portions of the tread by two circumferential grooves. The circumferential grooves have a width greater than about 6 mm. The central portion extends in axial direction for a width less than 20% of the width of the tread and includes a plurality of first sipes. Each lateral portion has a width greater than 30% of the width of the tread, and each lateral portion includes, furthermore, a plurality of transversal grooves. The transversal grooves of a lateral portion include at least a first inclined length that extends from a zone proximal to the respective circumferential grooves, moving away from the equatorial plane. The first inclined length has an inclination α≤60° with respect to equatorial plane. Each lateral portion includes a plurality of sipes. The density of the sipes decreases moving away from the equatorial plane.
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公开(公告)号：US11135794B2
公开(公告)日：2021-10-05
申请号：US16891287
申请日：2020-06-03
申请人： Pirelli Tyre S.p.A.
发明人： Davide Conti
摘要： A method for managing a carcass structure building line, a plant and a process for building tyre carcass structures, wherein the plant includes a carcass structure building line provided with a plurality of stations including an unloading station and n building stations. A group of forming drums being processed includes m forming drums being processed defining a first size of carcass structure being processed. Three groups of entering forming drums include respective entering forming drums, defining a second size of carcass structure being processed. A pair of support elements being processed includes a first and a second support element being processed and three pairs of entering support elements respectively include a first and a second entering support element. The invention also relates to a method for managing a carcass structure building line.
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24.发明授权公开(公告)号：US11104088B2
公开(公告)日：2021-08-31
申请号：US16468252
申请日：2017-12-05
申请人： PIRELLI TYRE S.P.A.
摘要： A method for checking a continuous elongated element during the building of a tyre for vehicle wheels. A beam of an electromagnetic radiation is projected on a section of the continuous elongated element dispensed by a dispensing head and interposed between the dispensing head and a first contact area of the continuous elongated element with a radially outer surface of a tyre being processed. An image of a radiation reflected by the section is acquired. A first parameter related to the image is detected, and the first parameter is compared with a second reference parameter.
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公开(公告)号：US11091608B2
公开(公告)日：2021-08-17
申请号：US16065587
申请日：2016-12-23
发明人： Maurizio Stefano Galimberti , Roberto Sebastiano , Vincenzina Barbera , Valeria Rosaria Cipolletti , Gabriella Leonardi , Shuquan Sun , Luigia Rossiello
IPC分类号： C08L9/06 , C08F36/06 , C08L23/16 , C08L23/22 , C08K5/17 , C08K5/20 , C08K5/29 , C08K5/353 , C08K5/44 , C08K5/3472 , C08K5/38 , C08K3/04 , C08K3/36 , C08K3/06 , C08K3/22 , C08K3/26 , B60C1/00 , C08L7/00
摘要： The present invention relates to a vulcanizable elastomeric composition comprising a secondary accelerator that may be used in combination with sulphenamide alone, completely avoiding the use of a guanidine. Moreover, said accelerator promotes dispersion of the silica in the compound and migrates with difficulty in the elastomeric composition itself. The invention also relates to the use of a vulcanization accelerator for said elastomeric composition, to the associated vulcanization process and to a tyre comprising same.
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公开(公告)号：US11090890B2
公开(公告)日：2021-08-17
申请号：US15202268
申请日：2016-07-05
申请人： Pirelli Tyre S.p.A.
摘要： 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.
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公开(公告)号：US20210197509A1
公开(公告)日：2021-07-01
申请号：US17183325
申请日：2021-02-23
申请人： Pirelli Tyre S.p.A.
摘要： 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, 16h) 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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公开(公告)号：US11040509B2
公开(公告)日：2021-06-22
申请号：US15534850
申请日：2015-12-14
申请人： PIRELLI TYRE S.P.A.
发明人： Davide Conti
摘要： A process and an apparatus for cutting a continuous rubber-covered belt in a process for building tyres for vehicle wheels, wherein the apparatus includes a cutting group, in turn comprising: a knife formed by a first half-part and a second half-part and movable along a cutting direction that is tilted with respect to a supply direction of a rubber-covered belt placed beneath the knife. The process includes: lifting a lifting element placed below the continuous rubber-covered belt and at the cutting zone, until a portion of rubber-covered belt is lifted, and lowering the single first-half part of the knife, making it slide with respect to the second half-part.
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公开(公告)号：US11021024B2
公开(公告)日：2021-06-01
申请号：US15857392
申请日：2017-12-28
申请人： PIRELLI TYRE S.P.A.
摘要： A positioning device for keeping a monitoring device for tyres of vehicle wheels in an installation condition, includes: two separate active portions, each having a main surface the shape of which matches that of a respective portion of an outer surface of a monitoring device, said separate active portions being adapted to cooperate with at least base portions of said monitoring device so that, when said positioning device is associated with said monitoring device, the base portions of said monitoring device are maintained at a given mutual distance by said active portions.
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公开(公告)号：US10987887B2
公开(公告)日：2021-04-27
申请号：US16472785
申请日：2017-11-29
申请人： Pirelli Tyre S.p.A.
发明人： Davide Lupo Conti , Bruno Lodi , Gian Luigi Bosio
摘要： 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 tire is engaged by means of a transfer member (31) comprising a gripping device (30) which holds it hanging and loads it into a vulcanisation mould (101) by axially positioning an axial centreline plane (M) of the green tyre at an axial reference (51) arranged at a predetermined height along a reference axis (K) of a central body (103) of the vulcanisation mould (101).
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