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公开(公告)号：US11801716B2
公开(公告)日：2023-10-31
申请号：US17259162
申请日：2019-06-19
发明人： Yuta Uchida
IPC分类号： B60C11/12
CPC分类号： B60C11/1259 , B60C11/1218 , B60C11/1272 , B60C2011/1209 , B60C2011/1213 , B60C2011/1227
摘要： Each sipe wall surface of a sipe in a tread portion of a pneumatic tire includes, along a sipe depth direction, multiple ridge portions and at least one valley portion bending like waves. Where viewed along the sipe depth direction, a recess depth of the valley portion with respect to the ridge portion on one wall surface varies depending on a position in the extension direction, the valley portion extends from a position at which the recess depth is maximized toward a position at which the recess depth is minimized, and the recess depth decreases as the valley portion extends from the side of the maximum-depth valley portion toward the maximum ridge portion. The sipe is provided in at least one of a first half-tread region on a first side or a second half-tread region on a second side in a tire width direction.
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公开(公告)号：US20190193472A1
公开(公告)日：2019-06-27
申请号：US16211639
申请日：2018-12-06
发明人： Naoya Kubo
CPC分类号： B60C11/1218 , B60C11/042 , B60C11/1236 , B60C11/1272 , B60C2011/0341 , B60C2011/1209 , B60C2011/1227 , B60C2011/1245
摘要： In a pneumatic tire, a rubber surface layer portion comprises a first rubber portion formed from a first rubber, and a second rubber portion formed from a second rubber having a rubber hardness greater than a rubber hardness of the first rubber, the first rubber portion is arranged at a first side in a tire width direction, the second rubber portion is arranged at a second side in the tire width direction, an interface between the first rubber portion and the second rubber portion is arranged between a pair of main grooves that are arranged in outwardmost fashion in the tire width direction, and an average tire outside diameter toward the second side in the tire width direction from a tire equatorial plane is greater than an average tire outside diameter toward the first side in the tire width direction from the tire equatorial plane.
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公开(公告)号：US20190184758A1
公开(公告)日：2019-06-20
申请号：US16207708
申请日：2018-12-03
发明人： Makoto SUEISHI
CPC分类号： B60C11/11 , B60C11/01 , B60C11/0306 , B60C11/0332 , B60C11/1281 , B60C2011/0334 , B60C2011/1227 , B60C2011/1286 , B60C2200/10 , B60C2200/14
摘要： A motorcycle tyre for traveling on rough terrain, the tyre includes a tread portion provided with blocks. The at least one of the blocks includes a ground contact surface having a pair of lateral edges extending in a tyre axial direction. The at least one of the blocks is provided with a pair of lateral narrow grooves extending in the tyre axial direction on the ground contact surface to form a pair of edge-side portions defined between the pair of lateral narrow grooves and the pair of lateral edges. The at least one of the pair of edge-side portions includes a neck portion having a minimum circumferential length thereof, wherein a circumferential length of the at least one of the pair of edge-side portions increases toward axially both sides from the neck portion.
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公开(公告)号：US20180272809A1
公开(公告)日：2018-09-27
申请号：US15906261
申请日：2018-02-27
发明人： Tatsuo KIMURA
CPC分类号： B60C11/0309 , B60C11/1204 , B60C11/1236 , B60C2011/0346 , B60C2011/0376 , B60C2011/0383 , B60C2011/1209 , B60C2011/1213 , B60C2011/1227
摘要： A pneumatic tire includes a tread portion including a pair of first main grooves, a pair of second main grooves, a first land portion between the first main grooves and a pair of second land portions each sectioned adjacent one of the pair of first main grooves and one of the pair of second main grooves. The first main grooves extend in a trapezoidal wave manner including inner elements, outer elements and inclined connecting elements. One of the second land portions is provided with a second lateral groove opened at one of the outer elements. The first land portion is provided with a recess having an opening at the one of the outer elements. In a tire circumferential direction, a center of the opening of the recess is located at a position different from a position of an extension line of a centerline of the second lateral groove.
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公开(公告)号：US20180117971A1
公开(公告)日：2018-05-03
申请号：US15559521
申请日：2016-03-10
发明人： Ryunosuke MATSUYAMA
IPC分类号： B60C11/12
CPC分类号： B60C11/1218 , B60C11/0302 , B60C11/0304 , B60C11/04 , B60C11/1236 , B60C11/1259 , B60C11/1281 , B60C2011/0381 , B60C2011/0388 , B60C2011/039 , B60C2011/1209 , B60C2011/1227 , B60C2011/1268 , B60C2011/1286 , B60C2011/129 , B60C2011/133 , B60C2011/1338
摘要： In the pneumatic tire according to this disclosure, a plurality of sipes on a tread surface include a large intermediate width sipe 4 having: a pair of intermediate sipe wall surface portions 61, a pair of bottom-side sipe wall surface portions 62 and a pair of tread-surface-side sipe wall surface portions 63; and within a central region of the tread surface, a spacing along a tire circumferential direction between the large intermediate width sipe and another sipe or groove is 2.0 to 4.0 times of a sipe depth D of the large intermediate width sipe.
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公开(公告)号：US20170129288A1
公开(公告)日：2017-05-11
申请号：US15342578
申请日：2016-11-03
发明人： Aya Satoi
IPC分类号： B60C11/12
CPC分类号： B60C11/1218 , B60C11/0304 , B60C11/0306 , B60C11/1236 , B60C11/1281 , B60C2011/0346 , B60C2011/0381 , B60C2011/1213 , B60C2011/1227 , B60C2011/1286 , B60C2011/1295
摘要： In a pneumatic tire, a tread rubber includes a vehicle inner side region, a vehicle outer side region, first stereoscopic sipes, and second stereoscopic sipes. The first stereoscopic sipe has a sipe wall surface of a shape bent in a sipe width direction as viewed in cross section perpendicular to a sipe length direction, the first stereoscopic sipe having a fixed sipe width over a sipe depth direction. The second stereoscopic sipe has large width portions having a sipe width wider than a sipe width of the second stereoscopic sipe on a surface of the tread rubber in the inside of the tread rubber. Rubber hardness of the tread rubber in the vehicle outer side region is larger than rubber hardness of the tread rubber in the vehicle inner side region. Accordingly, it is possible to enhance dry steering stability performance while suppressing lowering of ice braking performance.
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公开(公告)号：US20160288582A1
公开(公告)日：2016-10-06
申请号：US15052317
申请日：2016-02-24
发明人： Tsuyoshi Fujioka
CPC分类号： B60C11/125 , B60C11/0306 , B60C11/0332 , B60C11/11 , B60C11/1204 , B60C11/1259 , B60C11/1263 , B60C2011/0334 , B60C2011/0341 , B60C2011/0346 , B60C2011/0365 , B60C2011/0367 , B60C2011/0369 , B60C2011/1227
摘要： A pneumatic tire has inner mediate land portions and center land portion(s) that are divided into a plurality of blocks by lateral grooves. Each of the lateral grooves includes a pair of wide portions opening to a main groove and a narrow portion coupling the pair of the wide portions, one-side-closed sipes are formed in a bottom of each of the lateral grooves formed in the inner mediate land portions. The one-side-closed sipes are open at the wide portions and close at the narrow portion, a both-sides-open sipe is formed in a bottom of each of the lateral grooves formed in the center land portion or portions. The both-sides-open sipe is open at the wide portions and at the narrow portion.
摘要翻译： 充气轮胎具有通过横向槽分成多个块的内部中间陆部和中心陆部。 每个横向槽包括一对通向主槽的宽部分和连接该一对宽部分的窄部分，一侧封闭的刀槽花纹形成在形成在内部介质中的每个横向槽的底部 陆地部分。 单侧封闭刀槽花纹在宽部开口，在狭窄部分处闭合，在形成在中央陆部或部分中的每个横向槽的底部形成有两侧开口的刀槽花纹。 两侧开放的刀槽花纹在宽的部分和狭窄的部分开口。
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公开(公告)号：US09446629B2
公开(公告)日：2016-09-20
申请号：US13634122
申请日：2011-02-28
申请人： Kento Hashimoto , Takeshi Iwatani , Tooru Hayashi
发明人： Kento Hashimoto , Takeshi Iwatani , Tooru Hayashi
CPC分类号： B60C11/11 , B60C11/0304 , B60C11/033 , B60C11/0332 , B60C11/12 , B60C2011/0381 , B60C2011/1209 , B60C2011/1213 , B60C2011/1227 , B60C2011/1338
摘要： A pneumatic tire is disclosed, adapted to highly effectively combine on-ice and on-snow performances. The pneumatic tire includes block groups (G) formed by polygonal blocks (10), which are arranged closely in a tread portion (1). The polygonal blocks (10) are formed by grooves (9) including first groove (9a) with a groove width (W9a) between the polygonal blocks 10 neighboring with each other in the tire circumferential direction. The groove width (W9a) of the first grooves (9a) is larger than a groove width (W9b) of second grooves (9b) between the polygonal blocks 10 neighboring with each other with a zigzag pattern.
摘要翻译： 公开了一种充气轮胎，适用于高效地组合冰上和降雪性能。 充气轮胎包括由多边形块（10）形成的块组（G），它们紧密地布置在胎面部分（1）中。 多边形块（10）由包括在轮胎周向上彼此相邻的多边形块10之间的槽宽度（W9a）的第一槽（9a）的槽（9）形成。 第一凹槽（9a）的凹槽宽度（W9a）大于彼此相邻且具有锯齿形图案的多边形块10之间的第二凹槽（9b）的凹槽宽度（W9b）。
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公开(公告)号：US20140299245A1
公开(公告)日：2014-10-09
申请号：US14355068
申请日：2012-10-31
发明人： Yoshio Kaji
IPC分类号： B60C11/12
CPC分类号： B60C11/1218 , B60C11/0306 , B60C11/1263 , B60C2011/1213 , B60C2011/1227
摘要： Provided is a pneumatic tire including a land portion provided with a sipe, which is capable of simultaneously providing snow performance, dry performance, and wet performance all at high level in a single land portion. The pneumatic tire includes a land portion 2 on a tread portion. The land portion 2 is provided with a sipe 5 having amplitude in a tire circumferential direction and extending in a tire width direction. In a depth direction extending from a land portion surface S toward an inner side in a tire radial direction, sipe 5 includes: a land portion's surface-side part 5a1 bent toward tire circumferential direction from land portion surface S; and a land portion's bottom-side part 5a2 bent in a direction different from a direction of land portion's surface-side part 5a1 or bent toward tire circumferential direction by a displacement different from a displacement of land portion's surface-side part 5a1.
摘要翻译： 提供一种充气轮胎，其包括具有刀槽花纹的陆部，其能够在单个陆部中同时以高水平提供积雪性能，干性能和湿性能。 充气轮胎在胎面部上具备陆部2。 陆部2具有轮胎周向振幅并沿轮胎宽度方向延伸的刀槽花纹5。 在从陆部表面S向轮胎径向内侧延伸的深度方向上，刀槽花纹5包括：从陆地面S向轮胎周向弯曲的陆部表面侧部5a1， 以及在与陆部表面侧部5a1的方向不同或向轮胎周向弯曲不同于陆部表面侧部5a1的位移的位移而弯曲的陆部的底侧部5a2。
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公开(公告)号：US20140261936A1
公开(公告)日：2014-09-18
申请号：US13963163
申请日：2013-08-09
发明人： Wako IWAMURA
IPC分类号： B60C11/12
CPC分类号： B60C11/1218 , B60C11/1272 , B60C2011/1213 , B60C2011/1227
摘要： A pneumatic tire comprises a tread block having a top face provided with a three-dimensional sipe, the sipe extending along its longitudinal direction with an angle of 0 to 45 degrees with respect to a tire axial direction, the sipe having a first opening configuration extending in a wavy manner with amplitude W and a cycle a1 in a cross sectional view of the block parallel to the top face, the sipe having a second opening configuration extending in a wavy manner with amplitude W and a cycle a2 in a cross sectional view of the block perpendicular to the longitudinal direction of the sipe, and the sipe satisfying the following relation (1) in a rectangular coordinate system in which the x-axis corresponds to the longitudinal direction, the z-axis corresponds to a depth direction of the sipe: y=W·sin {(2π·x/a1)+(2π·z/a2)+θ}.
摘要翻译： 一种充气轮胎，包括具有设置有三维刀槽花纹的顶面的胎面花纹块，所述刀槽花纹相对于轮胎轴向以其0〜45度的角度沿其长度方向延伸，所述刀槽花纹具有延伸的第一开口构造 在波长方向上以振幅W的波形方式和平行于顶面的块的横截面视图中的周期a1，刀槽花纹具有以波形方式延伸的第二开口构造，其幅度为W，在周期a2的横截面图中为 垂直于刀槽花纹的纵向的块和刀槽花纹在x轴对应于纵向方向的直角坐标系中满足以下关系式（1），z轴对应于刀槽花纹的深度方向 ：y = W·sin {（2＆pgr。·x / a1）+（2＆pgr;·z / a2）+＆thetas;}。
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