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181 条记录 (耗时 0.017 秒)

    Pneumatic tire
    2.
    发明授权
    Pneumatic tire 有权

    公开(公告)号：US11752806B2

    公开(公告)日：2023-09-12

    申请号：US16491149

    申请日：2018-03-05

    申请人： The Yokohama Rubber Co., LTD.

    发明人： Yuhei Suzuki

    IPC分类号： B60C11/11 ,  B60C11/12 ,  B60C11/13

    CPC分类号： B60C11/11 ,  B60C11/1236 ,  B60C11/1263 ,  B60C11/1392 ,  B60C2200/14

    摘要： A pneumatic tire is provided. Center blocks in a center region are in pairs across grooves inclined with respect to a circumferential direction. Each of the center blocks extends from one side to the other of an equator and includes a notch defined by a first and second walls connected in a V-shape in a tread contact surface. The first wall extends within ±20° of the circumferential direction, the second wall extends within ±10° of a lateral direction, an average angle of sipes formed in one of the center blocks and the shoulder blocks is smaller than or equal to 90°±10° with respect to the equator for a first region, smaller than or equal to 130°±10° for a second region, and smaller than or equal to 70°±10° for a third region, and each of the sipes includes at least one bent portion.

    Pneumatic tire
    3.
    发明授权
    Pneumatic tire 有权

    公开(公告)号：US11738602B2

    公开(公告)日：2023-08-29

    申请号：US17387439

    申请日：2021-07-28

    申请人： Toyo Tire Corporation

    发明人： Tetsuji Miyazaki

    IPC分类号： B60C11/03 ,  B60C11/12

    CPC分类号： B60C11/0304 ,  B60C11/0302 ,  B60C11/1204 ,  B60C11/1236 ,  B60C11/1263 ,  B60C11/1281

    摘要： A pneumatic tire includes: a first and second main grooves extending in a tire circumferential direction; first and second inclined grooves extending obliquely toward the same side with respect to the tire circumferential direction and connected to the first and second main grooves; and a block defined by the first and second main grooves and the first and second inclined grooves. The block includes a sub groove having a first portion and a second portion, the first portion being open to an intermediate portion of the first inclined groove and extending in the tire circumferential direction, the second portion being inclined to a side opposite to the first inclined groove, extending from a terminal end of the first portion in a direction away from the first inclined groove, and being open to the first main groove.

    Tread block arrangement having a supporting sipe
    4.
    发明申请
    Tread block arrangement having a supporting sipe 审中-公开

    公开(公告)号：US20190248188A1

    公开(公告)日：2019-08-15

    申请号：US16276683

    申请日：2019-02-15

    申请人： Nokian Renkaat Oyj

    发明人： Jokinen Mikko ,  Venäläinen Teemu

    IPC分类号： B60C11/03 ,  B60C11/12

    CPC分类号： B60C11/0304 ,  B60C11/0306 ,  B60C11/11 ,  B60C11/1204 ,  B60C11/1236 ,  B60C11/1263 ,  B60C2011/1213 ,  B60C2011/1254

    摘要： The invention relates to a tread block arrangement of a tread band or a tire. The tread block arrangement forms a tread that is meant for a rolling contact against a ground surface, wherein the tread is provided with at least one longitudinal groove. The tread block arrangement limits a first number (NT) of sipes, of which a second number (NTT) are transversal sipes of which a third number (N) of sipes form a group. For each sipe of the group, the tread block arrangement forms a bottom a first sidewall, a second sidewall, and a first end wall. The end first end wall of each sipe of the group is configured such that a distance between the first end wall of the sipe in question and an outer side of the pneumatic tire or the tread band is less than a distance between the other end of the sipe in question and the outer side. Moreover, at least a part of the first end wall of the sipe in question has a first surface normal of the sipe in question, and the first surface normal of the sipe in question forms a first angle of the sipe in question of at least 20 degrees with the tread. Furthermore, the ratio (NTT/NT) of the second number (NTT) to the first number (N) is at least 75% and the ratio (N/NTT) of the third number (N) to the second number (NTT) is at least 20%.

    TIRE
    5.
    发明申请
    TIRE 审中-公开

    公开(公告)号：US20180170114A1

    公开(公告)日：2018-06-21

    申请号：US15735206

    申请日：2016-04-27

    申请人： BRIDGESTONE CORPORATION

    发明人： Shintaro HAYASHI

    IPC分类号： B60C11/12 ,  B60C11/03

    CPC分类号： B60C11/1204 ,  B60C11/03 ,  B60C11/0304 ,  B60C11/12 ,  B60C11/1236 ,  B60C11/1263 ,  B60C11/1392

    摘要： A tire 10 has: plural main grooves 18, 20 that extend in a tire circumferential direction; an inner side intermediate land portion 26 (land portion) that is demarcated in a tire transverse direction by the main grooves 18, 20; sipes S that communicate with a tread surface 34 side of the inner side intermediate land portion 26, and that have two arc-shaped sipe portions S1, S2 whose convex directions as seen from the tread surface 34 are directions opposite to one another in the tire circumferential direction, whose convex directions are directed toward a tire transverse direction central side of the inner side intermediate land portion 26, and that communicate with the main grooves 18, 20; and chamfered portions 111, 112, 121, 122 that are provided at the land portion ends that are at the tread surface 34 side and that run along the sipes S.

    Pneumatic tire
    8.
    发明授权
    Pneumatic tire 有权

    公开(公告)号：US09789736B2

    公开(公告)日：2017-10-17

    申请号：US14380954

    申请日：2013-03-11

    申请人： SUMITOMO RUBBER INDUSTRIES, LTD.

    发明人： Goro Munezawa

    IPC分类号： B60C11/04 ,  B60C11/12 ,  B60C11/13 ,  B60C11/03

    CPC分类号： B60C11/1263 ,  B60C11/0306 ,  B60C11/04 ,  B60C11/12 ,  B60C11/1236 ,  B60C11/1307 ,  B60C2011/0369 ,  B60C2011/0372 ,  B60C2011/0381 ,  B60C2011/0388 ,  B60C2011/1209

    摘要： A pneumatic tire has a high wet performance with keeping steering stability and wear resistance. Each of the middle land portions (12) is provided with middle sipes (15) and a middle sub-groove (16). Each of the middle sipes (15) has an arc-like shape such that an angle (θ1) with respect to the circumferential direction of the tire gradually increases from its inner end (15i) towards its outer end (15o). A circumferential length (L2) is in a range of from 0.6 to 1.0 times the arrangement pitch (P2) of the middle sipe (15). The middle sub-groove (16) communicates with a shoulder main groove (10), terminates without communicating with a crown main groove (9), and has an arc-like shape having an angle (θ2) that gradually increases from its inner end (16i) to its outer end (16o). A length (L3) of the middle sub-groove (16) is less than the length (L2) of the middle sipe, and the adjacent middle sipe (15) and middle sub-groove (16) overlap one another in the axial direction of the tire.

    PNEUMATIC TIRE
    9.
    发明申请
    PNEUMATIC TIRE 审中-公开

    公开(公告)号：US20170253086A1

    公开(公告)日：2017-09-07

    申请号：US15449095

    申请日：2017-03-03

    申请人： Sumitomo Rubber Industries, Ltd.

    发明人： Ryuhei SANAE

    IPC分类号： B60C11/03 ,  B60C11/12

    CPC分类号： B60C11/0304 ,  B60C11/0306 ,  B60C11/1236 ,  B60C11/124 ,  B60C11/1263 ,  B60C2011/0353 ,  B60C2011/0365 ,  B60C2011/0369 ,  B60C2011/1209

    摘要： A pneumatic tire comprises a tread portion 2 having an outside tread edge Teo and an inside tread edge Tei to be positioned outside and inside, respectively, with respect to a vehicle. The tread portion 2 is axially divided into land regions 4 by four main grooves 3 including an outside shoulder main groove 5, an inside shoulder main groove 6 and two crown main grooves 7. The outside shoulder main groove 5 has a width smaller than the inside shoulder main groove 6 and the crown main grooves 7. The land portions 4 include an inside shoulder land region 10 provided with inside shoulder lateral grooves 17. Each of the land regions 4 is provided with sipes 20 each extending across the entire width of the land region and having a width less than 3 mm.

    Pneumatic tire
    10.
    发明授权
    Pneumatic tire 有权
    气动轮胎

    公开(公告)号：US09266397B2

    公开(公告)日：2016-02-23

    申请号：US13634141

    申请日：2011-03-10

    申请人： Hiroshi Oodaira

    发明人： Hiroshi Oodaira

    IPC分类号： B60C11/12 ,  B60C11/11

    CPC分类号： B60C11/11 ,  B60C11/1263 ,  B60C11/1281 ,  B60C2011/0372 ,  B60C2011/1209 ,  B60C2011/1213 ,  B60C2011/1227 ,  B60C2011/1245 ,  B60C2011/1254 ,  B60C2011/1268 ,  B60C2011/1286

    摘要： Provided is a pneumatic tire improved in on-ice friction properties of the tire, which is excellent in on-ice performance, in particular, on-ice braking performance. The pneumatic tire according to the present invention includes, in a tread portion surface located between both tread ends, a plurality of main grooves extending in a tire circumferential direction; a plurality of lateral grooves extending in a tire width direction, the lateral grooves each having one bent point so as to be in a convex shape in the tire circumferential direction between the main grooves and/or between the main groove and the tread end, the plurality of main grooves and the plurality of lateral grooves partition-forming a plurality of blocks each including a circumferential protrusion in a shape conforming to the convex shape of the lateral groove, the blocks each including at least one lateral sipe extending in the tire width direction in a shape conforming to the lateral grooves, in which the lateral sipe is equal in tire-width-direction dimension to the block having the lateral sipe disposed therein when both are projected onto the same plane which includes the tire rotation axis and is perpendicular to the block surface.

    摘要翻译： 提供了一种提高轮胎的冰上摩擦性能的充气轮胎，其具有优异的冰上性能，特别是冰上制动性能。 根据本发明的充气轮胎在位于两个胎面端部之间的胎面部表面中包括在轮胎周向延伸的多个主槽， 沿轮胎宽度方向延伸的多个横向槽，横向槽各自具有一个弯曲点，以在主槽之间和/或主槽与胎面端之间的轮胎周向上呈凸形， 多个主槽和多个侧槽分隔成多个块，每个块包括符合横向槽的凸形形状的周向突起，该块各自包括沿轮胎宽度方向延伸的至少一个侧向刀槽花纹 其形状与横向槽相符合，其中当轮胎宽度方向尺寸与外侧刀槽花纹布置在其中时，两侧刀槽花纹相等，当两者都突出到包括轮胎旋转轴线的同一平面上并且垂直于 块表面。