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151 条记录 (耗时 0.019 秒)

    Pneumatic tire
    1.
    发明授权
    Pneumatic tire 有权

    公开(公告)号：US11926176B2

    公开(公告)日：2024-03-12

    申请号：US17609616

    申请日：2020-05-27

    申请人： BRIDGESTONE CORPORATION

    发明人： Yasunori Abe

    IPC分类号： B60C11/12 ,  B60C11/03 ,  B60C11/13

    CPC分类号： B60C11/1218 ,  B60C11/0306 ,  B60C11/1259 ,  B60C11/1272

    摘要： A pneumatic tire includes, on a tread surface, circumferential main grooves extending in a tread circumferential direction, and land portions defined between circumferential main grooves adjacent in a tread width direction among the circumferential main grooves, or by a circumferential main groove and a tread edge. The land portions include widthwise grooves (and/or widthwise sipes), extending in the tread width direction, each including a gradually decreasing groove (sipe) width portion in which a groove (sipe) width gradually decreases from the tread surface towards an inner side in the tire radial direction, a constant groove (sipe) width portion that extends from the gradually decreasing groove (sipe) width portion towards the inner side in the tire radial direction and has a constant groove (sipe) width, and a branched groove (sipe) portion branching and extending from the constant groove (sipe) width portion towards the inner side in the tire radial direction.

    THREE-DIMENSIONAL TIRE SIPE
    2.
    发明公开
    THREE-DIMENSIONAL TIRE SIPE 审中-公开

    公开(公告)号：US20230322027A1

    公开(公告)日：2023-10-12

    申请号：US18334184

    申请日：2023-06-13

    申请人： Bridgestone Americas Tire Operations, LLC

    发明人： Jean Y. Chen ,  Justin M. Gehres ,  Domenic Giampaolo ,  Neel K. Mani

    IPC分类号： B60C11/12 ,  B60C11/11

    CPC分类号： B60C11/1218 ,  B60C11/12 ,  B60C11/11 ,  B60C2011/1213 ,  B60C11/1272 ,  B60C2011/1209 ,  B60C11/1259

    摘要： Various embodiments of a tire having a three-dimensional tire sipe are disclosed. In one embodiment, a tire sipe used in a tire is provided, the tire sipe comprising: a radially inner sipe taper portion having a radially inner sipe width W3 and a radially inner sipe transition width W4, wherein the radially inner sipe width W3 is greater than the radially inner sipe transition width W4; a radially outer sipe taper portion having a radially outer sipe width W1 and a radially outer sipe transition width W2, wherein the radially outer sipe width W1 is greater than the radially outer sipe transition width W2; and a sipe radially central portion having a plurality of individual sipe radially angled portions oriented in a zig-zag pattern, wherein the sipe radially central portion is oriented radially between the radially inner sipe taper portion and the radially outer sipe taper portion.

    Tread for a heavy goods vehicle tire
    3.
    发明授权
    Tread for a heavy goods vehicle tire 有权

    公开(公告)号：US11718131B2

    公开(公告)日：2023-08-08

    申请号：US16474203

    申请日：2017-12-19

    申请人： COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN

    发明人： Tony Zivkovic ,  Arnaud Larregain

    IPC分类号： B60C11/12 ,  B60C11/03 ,  B60C11/13

    CPC分类号： B60C11/1281 ,  B60C11/0323 ,  B60C11/1259 ,  B60C11/13 ,  B60C2011/0355 ,  B60C2011/1295 ,  B60C2011/1338 ,  B60C2200/06

    摘要： Tread (1) for a heavy-duty vehicle tire having a total thickness corresponding to the thickness of material to be worn away during running, this tread having, in the new state, a tread surface (10) intended to come into contact with a roadway when running. The tread comprises at least one hidden cavity (2) forming a new groove opening onto the tread surface after a predetermined amount of partial wear. Cavity (2) comprises two opposite lateral walls (21, 22) connected together by bottom (23) radially towards the inside and by crown part (24) radially towards the outside. Crown part (24) is provided with a plurality of fine grooves (25) extending radially towards the outside from crown part (24) delimiting the cavity and extending in a direction that makes an angle at least equal to 40 degrees with the main direction of cavity (2).

    Pneumatic Tire
    4.
    发明申请
    Pneumatic Tire 审中-公开

    公开(公告)号：US20190193474A1

    公开(公告)日：2019-06-27

    申请号：US16328675

    申请日：2017-08-30

    申请人： The Yokohama Rubber Co., LTD.

    发明人： Takanori Uemura ,  Takayuki Shiraishi ,  Hiraku Kouda ,  Tatsuro Shinzawa

    IPC分类号： B60C11/12 ,  B60C11/03

    CPC分类号： B60C11/1281 ,  B60C11/03 ,  B60C11/0302 ,  B60C11/12 ,  B60C11/1204 ,  B60C11/1236 ,  B60C11/1259 ,  B60C11/13 ,  B60C2011/1213

    摘要： Provided is a pneumatic tire. A sipe is formed, on each of a leading side edge and a trailing side edge, with a chamfered portion shorter than a sipe length of a sipe, a non-chamfered region in which no other chamfered portion is present is provided in a part facing each of the chamfered portions, at least one end of the sipe communicates with the auxiliary groove, one end of the chamfered portion adjacent to the auxiliary groove in the rib communicates with the auxiliary groove, a maximum depth×(mm) of the sipe and a maximum depth y (mm) of the chamfered portion satisfy a relationship x×0.1≤y≤x×0.3+1.0, and a sipe width W of the sipe is constant in a range from an end positioned in the radial direction inside the chamfered portion to a groove bottom of the sipe.

    MOTORCYCLE TIRE
    5.
    发明申请
    MOTORCYCLE TIRE 审中-公开

    公开(公告)号：US20190193470A1

    公开(公告)日：2019-06-27

    申请号：US16209182

    申请日：2018-12-04

    申请人： Sumitomo Rubber Industries, Ltd.

    发明人： Kazuki FUKUSHIMA ,  Yoshimasa UEDA

    IPC分类号： B60C11/03

    CPC分类号： B60C11/0304 ,  B60C11/0302 ,  B60C11/04 ,  B60C11/11 ,  B60C11/1259 ,  B60C2011/0367 ,  B60C2011/0374 ,  B60C2200/10

    摘要： A motorcycle tire is provided in the tread portion with first inclined main grooves and second inclined main grooves which are arranged alternately in the tire circumferential direction while inclining in opposite directions. The first inclined main grooves extend from a first tread edge toward a second tread edge across the tire equator and terminate at the respective second inclined main grooves which extend from the second tread edge toward the first tread edge across the tire equator and terminate at the respective first inclined main grooves which are respectively next to the above-said first inclined main grooves. A first region, which is delimited by the first tread edge, two of the first inclined main grooves and one of the second inclined main grooves, is provided with blocks whose ground contacting top surfaces have vertices each having an angle of not less than 45 degrees.

    STIFFENERS FOR SIPE-MOLDING MEMBERS
    9.
    发明申请
    STIFFENERS FOR SIPE-MOLDING MEMBERS 审中-公开

    公开(公告)号：US20170246820A1

    公开(公告)日：2017-08-31

    申请号：US15515371

    申请日：2014-09-30

    申请人： Robert Cecil LAWSON

    发明人： Robert Cecil LAWSON

    IPC分类号： B29D30/06

    CPC分类号： B60C11/1218 ,  B29D30/0606 ,  B29D2030/0613 ,  B60C11/12 ,  B60C11/1204 ,  B60C11/1259 ,  B60C11/1263 ,  B60C11/1281 ,  B60C2011/1254

    摘要： Embodiments of the invention include methods for reducing deformation of a sipe-molding member (10) arising during manufacturing operations, and sipe-molding members (10) comprising a sipe-forming portion (12) and a plurality of stiffening members (20) spaced along the sipe-forming portion. The sipe-forming portion (12) has a length extending in a lengthwise direction of the sipe-molding member (10), a height configured to extend into a depth of a molding cavity, and a thickness extending perpendicular to both the length and height. The sipe-molding member (10) is configured to form a sipe having a thickness commensurate with the thickness of the sipe-forming portion, a length formed by at least a portion of the length of the sipe-forming portion, and a depth formed by at least a portion of the height of the sipe-forming portion. Each of the plurality of stiffening members (20) extend outwardly from the thickness of the sipe-forming element. Further embodiments include methods of forming a molded tire tread.