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    TYRE FOR VEHICLES
    3.
    发明授权
    TYRE FOR VEHICLES 有权
    轮胎车辆

    公开(公告)号：EP2164716B1

    公开(公告)日：2011-02-23

    申请号：EP07825897.7

    申请日：2007-07-05

    申请人： Pirelli Tyre S.P.A.

    发明人： COLOMBO, Gianfranco ,  MONTESELLO, Stefano ,  SANGALLI, Roberto ,  ZANI, Nevio

    IPC分类号： B60C11/03 ,  B60C11/04

    CPC分类号： B60C11/1369 ,  B60C11/0304 ,  B60C11/0306 ,  B60C11/032 ,  B60C2011/0381

    摘要： The tread band (7) of a tyre (1) has two circumferential portions, a central one (13) and an inner intermediate one (14) respectively, that are subdivided into centre (20) and intermediate (24) blocks respectively; an inner-shoulder circumferential portion (16) has first (26) and second (27) inner-shoulder cuts, axially offset from each other and distributed in an alternated sequence, to confine a continuous inner-shoulder rest surface (29) with an undulated course; an outer intermediate circumferential portion (15) has first (34) and second (35) intermediate cuts, and an outer-shoulder circumferential portion (17) has first (30) and second (31) outer-shoulder cuts. The first and second intermediate cuts (34, 35) and the outer-shoulder cuts (30, 31) respectively, mutually converge at an angle of about 20° and are axially offset from each other and circumferentially distributed in an alternated sequence, to delimit continuous rest surfaces, an intermediate (36) and outer-shoulder (33) surface respectively, with an undulated course.

    METHOD FOR IMPROVING THE CONTROL OF THE ROAD-HOLDING OF A TYRE AND TYRE OBTAINED ACCORDING TO SAID METHOD
    4.
    发明公开
    METHOD FOR IMPROVING THE CONTROL OF THE ROAD-HOLDING OF A TYRE AND TYRE OBTAINED ACCORDING TO SAID METHOD 审中-公开
    方法改善轮胎的驾驶行为的控制，并在此过程MADE轮胎

    公开(公告)号：EP2948321A1

    公开(公告)日：2015-12-02

    申请号：EP14706080.0

    申请日：2014-01-10

    申请人： Pirelli Tyre S.p.A.

    发明人： TROMBIN, Andrea ,  MONTESELLO, Stefano ,  SANGALLI, Roberto

    IPC分类号： B60C11/03 ,  B60C11/12

    CPC分类号： B60C11/0302 ,  B60C11/12 ,  B60C2011/0334 ,  B60C2011/0374

    摘要： A method for improving the control of the road-holding of a tyre (1, 100), which includes a tread band (2), on which there is defined a central region (6) which is developed symmetrically about an equatorial plane (M) of the tread band and a pair of shoulder regions (7) which are axially opposite the central region, comprises: - providing respective pluralities of shoulder blocks (11), central blocks (10) and intermediate blocks (12) which are arranged in succession along the circumferential development of the shoulder region and the central region, - configuring the shoulder blocks (11) in order to obtain shoulder regions (7) having values of specific lateral rigidity which decrease with a reduction in the distance from the equatorial plane (M) starting from a maximum value in the region of an axial end (4a, 4b) of the tread band, - configuring the central blocks (10) and the intermediate blocks (12) in order to obtain a central region (6) having values of specific lateral rigidity which increase with an increase in the distance from the equatorial plane starting from a minimum value in the region of the equatorial plane, and less than the values of specific lateral rigidity of the shoulder regions, so as to determine a progressive trend of the values of specific lateral rigidity between the axial end and the equatorial plane, wherein the minimum value of specific lateral rigidity is between 65% and 85% of the maximum value of specific lateral rigidity.

    TYRE FOR VEHICLES
    5.
    发明公开
    TYRE FOR VEHICLES 有权
    轮胎车辆

    公开(公告)号：EP2164716A1

    公开(公告)日：2010-03-24

    申请号：EP07825897.7

    申请日：2007-07-05

    申请人： Pirelli Tyre S.P.A.

    发明人： COLOMBO, Gianfranco ,  MONTESELLO, Stefano ,  SANGALLI, Roberto ,  ZANI, Nevio

    IPC分类号： B60C11/03 ,  B60C11/04

    CPC分类号： B60C11/1369 ,  B60C11/0304 ,  B60C11/0306 ,  B60C11/032 ,  B60C2011/0381

    摘要： The tread band (7) of a tyre (1) has two circumferential portions, a central one (13) and an inner intermediate one (14) respectively, that are subdivided into centre (20) and intermediate (24) blocks respectively; an inner-shoulder circumferential portion (16) has first (26) and second (27) inner-shoulder cuts, axially offset from each other and distributed in an alternated sequence, to confine a continuous inner-shoulder rest surface (29) with an undulated course; an outer intermediate circumferential portion (15) has first (34) and second (35) intermediate cuts, and an outer-shoulder circumferential portion (17) has first (30) and second (31) outer-shoulder cuts. The first and second intermediate cuts (34, 35) and the outer-shoulder cuts (30, 31) respectively, mutually converge at an angle of about 20° and are axially offset from each other and circumferentially distributed in an alternated sequence, to delimit continuous rest surfaces, an intermediate (36) and outer-shoulder (33) surface respectively, with an undulated course.

    TYRE FOR VEHICLE WHEELS HAVING IMPROVED TREAD PATTERN
    6.
    发明公开
    TYRE FOR VEHICLE WHEELS HAVING IMPROVED TREAD PATTERN 有权
    轮胎具有改进轮廓图案车轮

    公开(公告)号：EP2102019A1

    公开(公告)日：2009-09-23

    申请号：EP06829821.5

    申请日：2006-12-21

    申请人： Pirelli Tyre S.p.A.

    发明人： COLOMBO, Gianfranco ,  MONTESELLO, Stefano ,  SANGALLI, Roberto

    IPC分类号： B60C11/03 ,  B60C11/04

    CPC分类号： B60C11/0304 ,  B60C11/0302 ,  B60C11/0306 ,  B60C11/0311 ,  B60C11/042 ,  B60C11/1263 ,  B60C11/13 ,  B60C2011/0313 ,  B60C2011/0383 ,  B60C2011/1209

    摘要： A tyre for vehicle wheels having a tread pattern comprising: a) two circumferential grooves (12,13), which define a first (15) and a second (17) shoulder region, and one central region (16), b) a plurality of asymmetric transverse grooves (25) having a substantially 'V' shape, which extend for the whole width of the tread, comprising an alternate sequence of a first (25a) and a second asymmetric transverse groove (25b) defining an alternate sequence of a first (30) and a second asymmetric module (31), and c) a plurality of lateral transverse grooves (26,27), which comprises one first lateral transverse groove (26) extending for the whole width of said first shoulder region (15) and for a portion of said central region (16) of said first asymmetric modules (30), and one second lateral transverse groove (27) extending for the whole width of said second shoulder region (17) and for a portion of said central region (16) of said second asymmetric modules (31).

    PNEUMATIC TYRE
    9.
    发明公开
    PNEUMATIC TYRE 有权
    充气轮胎

    公开(公告)号：EP2217454A1

    公开(公告)日：2010-08-18

    申请号：EP07866749.0

    申请日：2007-11-05

    申请人： Pirelli Tyre S.P.A.

    发明人： BOLZONI, Roberto ,  SANGALLI, Roberto ,  SCALTRITTI, Dario

    IPC分类号： B60C11/03 ,  B60C11/11

    CPC分类号： B60C11/1263 ,  B60C11/0304 ,  B60C11/0306 ,  B60C11/0309 ,  B60C11/033 ,  B60C11/1369 ,  B60C2011/0369 ,  B60C2011/0372

    摘要： A pneumatic tyre (1) for car having a tread (2) comprising a central portion (Ll) disposed astride an equatorial plane (7) and two shoulder portions (8, 12). The central portion (Ll) is separated from the tread shoulder portions (8, 12) by two circumferential grooves (3, 6); at least one circumferential row (9) included between a first and a second circumferential groove (3, 4) is present in the central portion (Ll). The tread (2) has a hollow/solid ratio lower than 0.28. The circumferential row (9) comprises transverse grooves (16) extending over at least 80% of the width of the circumferential row (9). Each transverse groove (16) comprises a median line having at least one first rectilinear stretch (106; 107) and one curvilinear stretch (108). The transverse grooves (16) have a smaller width than that of the circumferential grooves (3; 4).

    摘要翻译： 一种具有包括跨越赤道面（7）设置的中心部分（L1）和两个肩部（8,12）的胎面（2）的用于汽车的充气轮胎（1）。 中央部分（L1）通过两个圆周槽（3,6）与胎面胎肩部分（8,12）分离; 包括在第一和第二周向槽（3,4）之间的至少一个周向排（9）存在于中央部分（L1）中。 胎面（2）具有小于0.28的中空/固体比率。 周向排（9）包括在周向排（9）的宽度的至少80％上延伸的横向沟槽（16）。 每个横向凹槽（16）包括具有至少一个第一直线段（106; 107）和一个曲线段（108）的中线。 横向槽（16）的宽度小于周向槽（3; 4）的宽度。