公开(公告)号：US20140290818A1

公开(公告)日：2014-10-02

申请号：US14225791

申请日：2014-03-26

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Kazuo ASANO ,  Yasuhiro KUBOTA

IPC: B60C3/04

CPC classification number: B60C3/04 ,  B60C3/00 ,  B60C9/0292 ,  B60C11/0008 ,  B60C11/0083 ,  B60C11/0332 ,  B60C2011/0033 ,  Y02T10/862

Abstract: When a pneumatic tire is in a reference state of being fitted with a rim that is one inch larger than a regular rim in width, of holding 15 kPa internal pressure, and of being under no load, then a tread thickness distribution curve represented by f(y)=1−t(y)/t(0) is 0.01 to 0.03 when y=0.3; 0.03 to 0.06 when y=0.4; and 0.06 to 0.10 when y=0.5, where y denotes a ratio of a distance in an axial direction from an equator surface relative to a distance L in the axial direction between the equator surface and a maximum width position of a carcass, and t(y) denotes a tread thickness corresponding to a distance in a radial direction between an outer surface of the carcass and an outer surface of a tread at an axial direction position corresponding to y.

Abstract translation: 当充气轮胎处于参考状态时，其装配有比正常轮辋宽1英寸的边缘，保持15kPa内部压力并且处于无负载状态，则由f表示的胎面厚度分布曲线 （y）= 1-t（y）/ t（0）在y = 0.3时为0.01〜0.03; 当y = 0.4时为0.03〜0.06; 在y = 0.5时为0.06〜0.10，其中y表示赤道表面的轴向距离相对于胎体的赤道面与最大宽度位置之间的轴向距离L的比例，t（ y）表示对应于在胎体的外表面和对应于y的轴向位置处的胎面的外表面之间的径向方向上的距离的胎面厚度。

公开(公告)号：US20160152076A1

公开(公告)日：2016-06-02

申请号：US14905513

申请日：2014-08-04

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Kazuo ASANO ,  Yasuhiro KUBOTA

IPC: B60C3/04 ,  B60C13/00 ,  B60C15/00 ,  B60C11/00 ,  B60C9/02

CPC classification number: B60C3/04 ,  B60C3/00 ,  B60C9/02 ,  B60C9/0292 ,  B60C11/00 ,  B60C11/0008 ,  B60C11/0083 ,  B60C11/0332 ,  B60C13/00 ,  B60C15/00 ,  B60C15/0036 ,  B60C2011/0033 ,  Y02T10/862

Abstract: This pneumatic tire improves fuel efficiency (i.e., rolling resistance and air resistance) while maintaining wear resistance in shoulder sections. If a tire cross-section width is denoted as Wt (unit: millimeters) and a bead diameter is denoted as Db (unit: inches), the following equations (1) and (2) are satisfied. (1) Wt≦−0.7257×(Db)2+42.763×Db−339.67, (2) Wt≧−0.7257×(Db)2+48,568×Db−552.33 Furthermore, if positions in the tire axis direction are denoted as Py, wherein y represents the ratio between the distance in the tire axis direction from the tire center and a distance L in the tire axis direction from the tire center to the maximum width position on the carcass, and the tread thickness, which is the distance in the tire radial direction from the outer surface of the carcass to the outer surface of a tread section at each position Py in the tire axis direction, is denoted as t(y), in the tread thickness distribution curve f(y) represented by equation (3) below, when y=0.4, f(y) ranges from 0.03 to 0.06, and the rate of change of f(y) increases to y=0.4 and decreases thereafter. f(y)=1−t(y)/t(0)  (3)

Abstract translation: 该充气轮胎在保持肩部的耐磨性的同时提高了燃料效率（即，滚动阻力和空气阻力）。 如果轮胎横截面宽度表示为Wt（单位：毫米），并且胎圈直径表示为Db（单位：英寸），则满足以下等式（1）和（2）。 （1）Wt＆nlE; -0.7257×（Db）2 + 42.763×Db-339.67，（2）Wt≥-0.7257×（Db）2 + 48,568×Db-552.33此外，如果将轮胎轴方向的位置表示为Py 其中，y表示轮胎轴线方向与轮胎中心的距离与轮胎中心到轮胎胎体的最大宽度位置的轮胎轴线方向的距离L的比，胎面厚度为胎面厚度 在轮胎轴向方向上的每个位置Py处的胎体的外表面到胎面部的外表面的轮胎径向方向被表示为t（y），由式（1）表示的胎面厚度分布曲线f（y） （3）时，当y = 0.4时，f（y）为0.03〜0.06，f（y）的变化率增加到y = 0.4，此后降低。 f（y）= 1-t（y）/ t（0）（3）

公开(公告)号：US20160193874A1

公开(公告)日：2016-07-07

申请号：US14910967

申请日：2014-07-17

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Kazuo ASANO ,  Yasuhiro KUBOTA ,  Sawa OGIHARA

IPC: B60C3/04 ,  B60C9/20 ,  B60C15/00 ,  B60C9/02

CPC classification number: B60C3/04 ,  B60C9/02 ,  B60C9/20 ,  B60C9/2009 ,  B60C9/2204 ,  B60C15/00 ,  B60C2009/0078 ,  B60C2009/1828 ,  B60C2009/2019 ,  B60C2009/2048 ,  B60C2009/2058 ,  B60C2009/208 ,  B60C2009/2083 ,  B60C2009/2093 ,  B60C2009/2228

Abstract: To improve the rolling resistance and air resistance of a tire. It has a belt layer composed of two belt plies in which belt cords are obliquely arranged at mutually opposite angles θ with respect to the tire equator, and a band layer composed of a single band ply in which a band cord is wound spirally in the tire circumferential direction. The angle θ of the belt cords is in a range of 35 degrees˜55 degrees. When Wt is the tire cross sectional width (unit: mm), and Db is a bead diameter (unit: inch), the tire cross sectional width Wt satisfies the following expressions (1), (2). Wt= =−0.7257×(Db)̂2+48.568×Db−552.33  (2)

Abstract translation: 提高轮胎的滚动阻力和空气阻力。 它具有由两个带束层组成的带束层，其中带帘线以相互相反的角度倾斜地布置; 相对于轮胎赤道，以及由单带帘布层组成的带层，其中带束线在轮胎周向上螺旋地卷绕。 角度和角度 的皮带帘线在35度〜55度的范围内。 当Wt为轮胎截面宽度（单位：mm），Db为胎圈直径（单位：英寸）时，轮胎横截面宽度Wt满足下式（1），（2）。 Wt = < - 0.7257×（Db）2 + 42.763×Db-339.67（1）Wt> = -0.7257×（Db）2 + 48.568×Db-552.33（2）

公开(公告)号：US20160297246A1

公开(公告)日：2016-10-13

申请号：US15100514

申请日：2015-01-06

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Kazuo ASANO ,  Yasuhiro KUBOTA

IPC: B60C9/20 ,  B60C9/22 ,  B60C11/00

CPC classification number: B60C9/20 ,  B60C9/2009 ,  B60C9/22 ,  B60C11/00 ,  B60C2009/2019 ,  B60C2009/2048 ,  B60C2009/2051 ,  B60C2009/2074 ,  B60C2009/209 ,  B60C2009/2276 ,  Y02T10/862

Abstract: [Object] A pneumatic tire that allows reduction of the occurrence of a TGC and, at the same time, allows reduction of rolling resistance, is provided.[Solution] The tire 12 includes a band 26 disposed radially inward of a tread 14, and a belt 24 disposed radially inward of the band 26. The band 26 includes a cord that is helically wound and extends substantially in a circumferential direction. The belt 24 includes an inner layer 24a, and an outer layer 24b that is layered over the inner layer 24a and disposed radially outward of the inner layer 24a. The inner layer 24a and the outer layer 24b each include multiple cords aligned with each other. The cords in the inner layer 24a and the cords in the outer layer 24b are inclined relative to an equator plane. A direction in which the cords in the inner layer 24a are inclined relative to the equator plane is opposite to a direction in which the cords in the outer layer 24b are inclined relative to the equator plane. Absolute values of inclination angles of the cords in the inner layer 24a and the cords in the outer layer 24b relative to the equator plane are greater than or equal to 35°, and not greater than 55°.

Abstract translation: [解决方案]轮胎12包括设置在胎面14的径向内侧的带26和设置在带26的径向内侧的带24.带26包括螺旋缠绕并且基本上在圆周方向上延伸的帘线。 带24包括内层24a和层叠在内层24a上并设置在内层24a的径向外侧的外层24b。 内层24a和外层24b各自包括彼此对准的多根帘线。 内层24a中的帘线和外层24b中的帘线相对于赤道面倾斜。 内层24a中的帘线相对于赤道面倾斜的方向与外层24b中的帘线相对于赤道面倾斜的方向相反。 内层24a中的帘线和外层24b中的帘线相对于赤道面的倾斜角的绝对值大于或等于35°，并且不大于55°。