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1. 发明授权

US12070974B2 Method for controlling the footprint area of a tyre and tyre for vehicle wheels 有权
公开(公告)号：US12070974B2
公开(公告)日：2024-08-27
申请号：US17822256
申请日：2022-08-25
申请人： PIRELLI TYRE S.P.A.
发明人： Piero Losi
IPC分类号： B29D30/08 , B29D30/06 , B60C3/06 , B60C11/03 , B60C13/00 , B60C19/00
CPC分类号： B60C3/06 , B29D30/0601 , B29D30/08 , B60C11/0332 , B60C13/00 , B60C19/001 , Y10T29/49494
摘要： Method for controlling the symmetry of the footprint area of a tyre miming on a straight trajectory with camber angle different from zero, wherein the method comprises the steps: —reducing the contact pressure of the tyre (2) on the footprint area at an inner shoulder (in case of negative camber) or at an outer shoulder (in case of positive camber); —disposing any medium line (Im) of the tread band (9) placed in correspondence with the footprint area substantially parallel to the ground; the invention also defines a tyre and a wheel for motor-vehicles, wherein the medium line (Im) of the tread hand (9) and the rotation axis (X-X) of the tyre (2) form an angle (a) substantially equal in absolute value to the camber angle (β); the invention also encompasses a process for manufacturing such tyres, wherein a green tyre with symmetric outer profile is deformed during the vulcanising and moulding step until a predetermined angle (a) different from zero is formed between any medium line (Im) of the tread band (9) and the rotation axis (X-X) of the vulcanised tyre (2).

2. 发明授权

US12031035B2 Tyre for vehicle wheels 有权
公开(公告)号：US12031035B2
公开(公告)日：2024-07-09
申请号：US17455165
申请日：2021-11-16
申请人： PIRELLI TYRE S.p.A. , POLITECNICO DI MILANO
发明人： Carlo Vittorio Mazzocchia , Matteo Antonio Daghetta , Lorenzo Pellegrino , Attillio Citterio , Enrico Albizzati , Luca Giannini , Thomas Hanel
IPC分类号： C01B32/162 , B01J23/745 , B01J37/02 , B01J37/03 , B01J37/04 , B01J37/08 , B60C1/00 , C08L9/00
CPC分类号： C08L9/00 , B01J23/745 , B01J37/0236 , B01J37/036 , B01J37/04 , B01J37/08 , B60C1/0016 , B60C1/0025 , C01B32/162 , C08L2205/025 , C08L2312/00
摘要： The present invention relates to a tyre for vehicle wheels comprising at least one structural element comprising a cross-linked elastomeric material obtained by cross-linking a cross-linkable elastomeric composition comprising carbon nanotubes, wherein said carbon nanotubes are obtained with an iron oxides and/or aluminium oxides based catalyst substantially free of Co, Ni and Mo.

3. 发明公开

US20240198730A1 HIGH-PERFORMANCE TYRE 审中-公开
公开(公告)号：US20240198730A1
公开(公告)日：2024-06-20
申请号：US18552387
申请日：2022-03-24
申请人： Pirelli Tyre S.p.A.
发明人： Roberto BOLZONI , Diego Ettore SPEZIARI
IPC分类号： B60C11/03
CPC分类号： B60C11/0304 , B60C11/0302 , B60C2011/0348 , B60C2011/0353 , B60C2011/036 , B60C2011/0365 , B60C2011/0372 , B60C2011/0383 , B60C2011/0388 , B60C2200/04
摘要： A car tyre (100), in particular a high or ultra high performance car tyre also suitable for use on track, is described; the tread band (1) of the tyre has a central region (L1), separated from two shoulder regions (L2, L3), respectively an outer shoulder region (L2) and inner shoulder region (L3); the outer shoulder region (L2) has a width greater than the width of the inner shoulder region (L3); the outer and inner shoulder regions are provided with relatively large grooves (5,6); in the outer shoulder region these grooves (5) alternate with narrower grooves (7), which reduce the stiffness of this tyre region only to a limited extend; the central region (L1) of the tyre, instead, was designed so as to have a low void-to-rubber ratio of equal to or smaller than 0.09.

4. 发明授权

US11993100B2 Motorcycles tyre 有权
公开(公告)号：US11993100B2
公开(公告)日：2024-05-28
申请号：US17295027
申请日：2019-11-29
申请人： Pirelli Tyre S.p.A.
发明人： Mario Mariani , Luca Bruschelli , Giuliano Bonaccorsi , Matteo Torchiana
IPC分类号： B60C11/03
CPC分类号： B60C11/0302 , B60C11/032 , B60C11/0332 , B60C2011/0341 , B60C2011/0388 , B60C2200/10
摘要： A motorcycle tyre has a tread band (8) comprising a plurality of grooves that form a tread pattern including a module (T) replicated along a circumferential direction of the tyre (1) and having a predetermined circumferential length (C1). The module (T) comprises a pair of circumferential grooves (20) arranged on opposite sides with respect to the equatorial plane (X-X) of the tyre (1). Such circumferential grooves (20) extend along the circumferential direction of the tyre (1) for only part of said predetermined circumferential length (C1) and define between them a central portion (A) of tread band (8) having a void to solid ratio substantially equal to zero and a predetermined axial width (A1). The module (T) further comprises a plurality of transversal grooves (30, 31, 32, 33) arranged on opposite sides with respect to the equatorial plane (X-X) at a distance from said equatorial plane (X-X) greater than that of said circumferential grooves (20) and a pair of first lateral annular portions (B) axially arranged between said circumferential grooves (20) and said plurality of pairs of transversal grooves (30, 31, 32, 33), each of said first lateral annular portions (B) comprising, in a position axially adjacent to the respective circumferential groove (20), a respective part (B1) of tread band having a circumferential length at least equal to that of said circumferential grooves (20) and a void to solid ratio substantially equal to zero. The tyre (1) has a curvature ratio lower than about 0.32.

5. 发明授权

US11931980B2 Process and apparatus for building tyres 有权
公开(公告)号：US11931980B2
公开(公告)日：2024-03-19
申请号：US17069396
申请日：2020-10-13
申请人： Pirelli Tyre S.p.A.
发明人： Stefano Sangiovanni , Ivan Gildo Boscaino
IPC分类号： B29D30/16 , B29D30/30 , B29D30/44 , B29D30/60
CPC分类号： B29D30/16 , B29D30/1628 , B29D30/30 , B29D30/3028 , B29D30/60 , B29D2030/4437 , B29D2030/4456
摘要： A continuous elongated element of elastomeric material is produced through an extruder at a linear delivery speed and directly fed onto a moving surface of a conveyor without interposition of other devices. The continuous elongated element is advanced on the moving surface along a predetermined direction and at a linear advancing speed different from the linear delivery speed until a proximal end of the conveyor. Subsequently, the continuous elongated element is applied onto a forming support which rotates relative to the proximal end of the conveyor at a peripheral speed different from the linear delivery speed, so as to deform the continuous elongated element and apply it in the form of wound coils onto the forming support in order to form a component of elastomeric material of a tyre.

6. 发明公开

US20240051351A1 A SELF-SUPPORTING TYRE FOR AUTOMOTIVE WHEELS 审中-公开
公开(公告)号：US20240051351A1
公开(公告)日：2024-02-15
申请号：US18258002
申请日：2021-12-22
申请人： Pirelli Tyre S.p.A.
发明人： Davide MIAZZO , Emiliano RESMINI , Luca CAMOSI , Luca GIANNINI , Dario SCALTRITTI
IPC分类号： B60C17/00
CPC分类号： B60C17/0009 , B60C2017/0063 , B60C2001/0033
摘要： The present invention relates to a self-supporting tyre (100) for motor vehicles which comprises sidewall reinforcing inserts (113A, 113B) with different stiffness. In particular, the sidewall reinforcing insert on the side of the tyre most stressed during driving is less rigid than the sidewall reinforcing insert on the less stressed side. The tyre of the invention exhibits a reduced rolling resistance and better comfort in normal driving and an unexpected increase in mileage in run-flat driving.

7. 发明公开

US20240034014A1 PLANT FOR BUILDING TYRES OF VEHICLE WHEELS AND METHOD FOR PROVIDING ELONGATED ELEMENTS TO BE USED IN A PROCESS FOR BUILDING TYRES 审中-公开
公开(公告)号：US20240034014A1
公开(公告)日：2024-02-01
申请号：US18258443
申请日：2021-12-28
申请人： PIRELLI TYRE S.P.A.
发明人： Christian DE COL , Albert BERENGUER , Andrea ANFOSSI
IPC分类号： B29D30/30 , B29D30/00 , B65H16/02
CPC分类号： B29D30/30 , B29D30/0016 , B65H16/021 , B29D2030/3078 , B29D2030/0038 , B65H2301/41398 , B65H2301/41368 , B65H2801/93
摘要： A method for arranging elongated elements in a process for building tyres for vehicle wheels, including: simultaneously winding a first elongated element and a second elongated element respectively on a first winding support in a first axial position and on a second winding support in a first axial position; simultaneously winding a third elongated element and a fourth elongated element respectively on the first winding support in a second axial position different from the first axial position and on the second winding support in a second axial position different from the first axial position, in which the elongated elements of the second type are the same as each other and different from the elongated elements of the first type.

8. 外观设计

USD1012009S1 Tire 有权
公开(公告)号：USD1012009S1
公开(公告)日：2024-01-23
申请号：US29844039
申请日：2022-06-27
申请人： Pirelli Tyre S.p.A.
设计人： Diego Ettore Speziari , Giovanni Casarotto
摘要： FIG. 1 is a perspective view of a tire, showing our new design;
FIG. 2 is a front elevation left side elevation view of the tire;
FIG. 3 is a top elevation view of the tire;
FIG. 4 is a bottom elevation view of the tire;
FIG. 5 is a left side view of the tire;
FIG. 6 is a right side view of the tire; and,
FIG. 7 is an enlarged view of FIG. 2, showing a portion thereof, the tread pattern repeating around the circumference of the tire.
The portions of the tire depicted in broken dashed lines of uneven length mark the boundaries of the claimed design. The portions of the tire depicted in short broken dashed lines of even length form no part of the claimed design. The long broken dashed lines of even length depict a border of an enlarged portion of the tire and form no part of the claimed design.

9. 发明授权

US11872782B2 Method for building tyres and transfer device of an apparatus for building tyres for vehicle wheels 有权
公开(公告)号：US11872782B2
公开(公告)日：2024-01-16
申请号：US18156257
申请日：2023-01-18
申请人： Pirelli Tyre S.p.A.
发明人： Erika Vaniglia , Stefano Boracco , Marco Fabbretti
IPC分类号： B29D30/26 , B29D30/00
CPC分类号： B29D30/2607 , B29D30/0061 , B29D2030/0066
摘要： 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).

10. 发明授权

US11865801B2 Process and plant for building tyres for vehicle wheels 有权
公开(公告)号：US11865801B2
公开(公告)日：2024-01-09
申请号：US16467309
申请日：2017-11-29
申请人： Pirelli Tyre S.p.A.
发明人： Erika Vaniglia , Maurizio Marchini
IPC分类号： B29D30/36 , B29D30/24
CPC分类号： B29D30/36 , B29D30/245
摘要： In a shaping station (13), a toroidal forming drum (23) is positioned within a carcass sleeve (12) comprising at least one carcass ply (3) associated with a pair of beads (6) in radially inner position. The carcass sleeve (12) is toroidally shaped by radial expansion of the forming drum (23). The forming drum (23) carrying the shaped carcass sleeve (12) is removed from the shaping station (13). Tyre components (7, 8, 9) are applied externally on the shaped carcass sleeve (12), carried by the forming drum (23). At the end of the shaping and during the application of the tyre components (7, 8, 9), axially inner sides of said beads (6) are arranged axially against respective circumferential axially outer portions (S1) of an abutment surface (S) carried by the expanded forming drum (23), having shape corresponding to an inner shape of the shaped carcass sleeve (12).

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