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公开(公告)号：US09950570B2
公开(公告)日：2018-04-24
申请号：US14655881
申请日：2012-12-28
发明人： Koichi Kotoku
CPC分类号： B60C9/18 , B60C5/00 , B60C9/0007 , B60C9/04 , B60C9/2006 , B60C9/28 , B60C11/01 , B60C2011/0033 , B60C2011/013 , B60C2200/06
摘要： A pneumatic tire includes at least three circumferential main grooves that extend in the tire circumferential direction, and land portions that are partitioned and formed by these circumferential main grooves. In addition, a belt layer is formed by laminating a pair of cross belts each having a belt angle of not less than 10° and not more than 45° as an absolute value and having mutually opposite signs, and a circumferential reinforcing layer having a belt angle within a range of ±5° with respect to the tire circumferential direction. In addition, in a cross-sectional view taken along the tire meridian direction, a diameter D1 at a point at an edge portion on the inner side of a shoulder land portion in the tire width direction and a diameter D2 at a predetermined point within the ground-contact surface of the shoulder land portion have a relationship such that D2
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公开(公告)号：US09796216B2
公开(公告)日：2017-10-24
申请号：US14555304
申请日：2014-11-26
发明人： Daisuke Todoroki
CPC分类号： B60C11/04 , B60C9/1835 , B60C11/0306 , B60C2011/0033 , B60C2011/0346 , B60C2011/0365 , B60C2011/0372 , B60C2011/0388 , B60C2200/06
摘要： A heavy duty tire is disclosed. The distance from the radially outer surface of a belt layer to the tire's inner surface is 15 to 23 mm when measured along a tire radial direction line passing through the bottom of a shoulder main groove. The width of the shoulder main groove is more than the width of a center main groove. The ratio Wc:Wm:Ws of the average width Wc of a center land portion, the average width Wm of a middle land portion, and the average width Ws of a shoulder land portion is 1.00:1.00 to 1.08:1.03 to 1.13. The middle land portion is provided with a plurality of middle axial grooves. The shoulder land portion is provided with a plurality of shoulder axial grooves. The width of the shoulder axial groove is more than the width of the middle axial groove. The angle θs of the shoulder axial groove is more than the angle θm of the middle axial groove with respect to the tire axial direction.
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公开(公告)号：US20170166012A1
公开(公告)日：2017-06-15
申请号：US15362884
申请日：2016-11-29
发明人： Daisuke TODOROKI
IPC分类号： B60C11/00
CPC分类号： B60C11/005 , B60C11/0008 , B60C2011/0025 , B60C2011/0033 , B60C2200/06 , Y02T10/862
摘要： A heavy duty pneumatic tire includes a tread, a pair of side walls, and a belt. The tread includes a base layer and a cap layer on the base layer such that boundary between the base layer and the cap layer is exposed on the side surfaces of the tread and the boundary on the side surfaces is on radial direction inner side of the edges of the side walls, and the tread is formed such that when an imaginary line passing through edge of the belt and extending in axial direction is set and a portion of the imaginary line intersecting the tread is a line segment AL, a ratio of width of the base layer in width of the tread is 70% or more where the width of the tread is length of the segment AL, and the base layer has a loss tangent of 0.06 or less.
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公开(公告)号：US20160368324A1
公开(公告)日：2016-12-22
申请号：US14900501
申请日：2014-06-13
发明人： Tatsuya MIYAZAKI
CPC分类号： B60C11/005 , B60C1/00 , B60C1/0016 , B60C11/00 , B60C2011/0033 , C08K3/04 , C08K3/22 , C08K5/18 , C08K2003/2296 , C08L7/00 , C08L9/00 , C08L21/00 , C08L61/04 , C08L65/00 , C08L79/04 , C08L91/00 , C08L9/06 , C08K3/36 , C08K5/10
摘要： The present invention provides a pneumatic tire capable of preventing discoloration while exhibiting good TGC resistance even after the tire having a reduced sub-tread thickness at the base of the tread main groove is stored. The present invention relates to a pneumatic tire including a tread portion, the tread portion including a jointless band and at least two tire components selected from the group consisting of a cap tread, a base tread, and an undertread, the rubber composition for cap treads having an amount of phenylenediamine antioxidant of a specific value or less, the cap tread, the base tread, the undertread, and the upper layer of the jointless band having amounts of phenylenediamine antioxidant satisfying a specific relational expression, the rubber composition for undertreads containing a specific amount of sulfur, the pneumatic tire having a sub-tread thickness at the base of the tread main groove of 0.5 to 2.0 mm.
摘要翻译： 本发明提供了即使在胎面主槽的底部具有减小的胎面胎面厚度的轮胎被存储之后，也能够防止变色而具有良好的耐TGC性的充气轮胎。 本发明涉及一种充气轮胎，其包括胎面部分，所述胎面部分包括无接缝带和至少两个轮胎部件，所述轮胎部件选自帽胎面，胎面基部和胎面帘布层，所述胎面部分用橡胶组合物 具有一定量以上的苯二胺抗氧化剂的量，具有满足特定关系式的苯二胺抗氧化剂的无胎带的胎面胎面，基底胎面，底面和上层，用于含有 特定量的硫，胎面主槽底部的胎面胎面厚度为0.5〜2.0mm的充气轮胎。
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公开(公告)号：US20160318349A1
公开(公告)日：2016-11-03
申请号：US15108226
申请日：2014-12-19
发明人： Masayoshi Kubota , Atsushi Tanno , Yuji Minami
CPC分类号： B60C11/0332 , B60C3/04 , B60C9/18 , B60C9/28 , B60C11/0304 , B60C11/033 , B60C2011/0033 , Y02T10/862
摘要： A pneumatic tire includes a cylindrical annular structure disposed around a rotational axis; a carcass portion including a rubber covered cord, at least a portion of the carcass portion being disposed to the outer side of the annular structure in a direction parallel to the rotational axis; and a rubber layer including a tread portion, at least a portion of the rubber layer being disposed to an outer side of the annular structure in a radiation direction with respect to the rotational axis. In such a pneumatic tire, SW/OD≦0.30 is satisfied, where SW is a total tire width and OD is a tire outer diameter.
摘要翻译： 充气轮胎包括围绕旋转轴设置的圆柱形环形结构; 包括橡胶覆盖的绳索的胎体部分，所述胎体部分的至少一部分沿与所述旋转轴线平行的方向设置在所述环形结构的外侧; 以及包括胎面部分的橡胶层，所述橡胶层的至少一部分相对于所述旋转轴线在辐射方向上设置在所述环形结构的外侧。 在这样的充气轮胎中，SW /OD≤0.30，其中SW是总轮胎宽度，OD是轮胎外径。
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公开(公告)号：US09387724B2
公开(公告)日：2016-07-12
申请号：US14283343
申请日：2014-05-21
发明人： Michio Hirayama
CPC分类号： B60C1/0016 , B60C9/2009 , B60C2011/0033 , C08L9/00 , C08L9/06 , Y02T10/862
摘要： The present invention aims to provide a tire having improved abrasion resistance and appearance, as well as reduced rolling resistance and therefore improved fuel economy. The present invention relates to a tire including a tread, the tread containing 0.9 to 1.5% by mass of a wax, 0.9 to 1.5% by mass of an amine antioxidant, 0.3 to 1.0% by mass of a quinoline antioxidant, and a tread rubber component containing 3% by mass or more of a polybutadiene rubber, the tread having a rubber thickness between a tread groove bottom and an outermost belt-reinforcing layer of 0.1 to 2.0 mm.
摘要翻译： 本发明的目的在于提供一种具有改善的耐磨性和外观以及降低的滚动阻力并由此提高燃油经济性的轮胎。 本发明涉及一种轮胎，其包括胎面，胎面含有0.9〜1.5质量％的蜡，0.9〜1.5质量％的胺类抗氧化剂，0.3〜1.0质量％的喹啉类抗氧化剂，胎面橡胶 该组分含有3质量％以上的聚丁二烯橡胶，该胎面在胎面槽底部和最外面带束层增强层之间的橡胶厚度为0.1〜2.0mm。
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公开(公告)号：US09352616B2
公开(公告)日：2016-05-31
申请号：US13883665
申请日：2011-11-14
申请人： Takayuki Kurata
发明人： Takayuki Kurata
CPC分类号： B60C5/00 , B60C9/2006 , B60C9/22 , B60C9/28 , B60C9/30 , B60C2011/0033 , B60C2200/04 , B60C2200/06 , Y10T152/10495
摘要： In a tire according to the present invention, the shape of the outermost reinforcing layer in the tire radial direction is optimized.
摘要翻译： 在本发明的轮胎中，最外侧加强层的轮胎径向的形状被优化。
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公开(公告)号：US20150328931A1
公开(公告)日：2015-11-19
申请号：US14652431
申请日：2013-12-11
CPC分类号： B60C11/005 , B60C1/0016 , B60C5/00 , B60C11/0058 , B60C11/03 , B60C11/0304 , B60C11/11 , B60C2011/0025 , B60C2011/0033 , B60C2011/1209 , B60C2011/1286 , B60C2011/129 , B60C2011/1295 , Y02T10/862
摘要： Tire tread having a central part (I) made from at least one first rubber compound and having at least one circumferential rib (121-123) formed of a plurality of blocks (1210) separated by sipes; a first and a second lateral part (II and III) made of at least a second and third rubber compound, and having a circumferential rib (131,141) formed by a plurality of blocks (1310,1410), separated by sipes, wherein the at least one second and third rubber compounds have a value of tan δ at 23° C.—at a frequency of 10 Hz and an elongation of 10% —of less than 0.25, wherein the complex modulus G*(T) of the at least one first rubber compound is greater than the complex moduli G*(T) of at least one second and third rubber compounds for all temperatures T greater than or equal to 0° and less than or equal to 60° C.
摘要翻译： 轮胎胎面具有由至少一个第一橡胶化合物制成的中心部分（I），并且具有由多个由刀槽花纹分隔的块（1210）形成的至少一个周向肋（121-123）; 由至少第二和第三橡胶混合物制成的第一和第二侧面部分（II和III），并且具有由刀槽花纹分开的多个块（1310,1410）形成的周向肋（131,141），其中， 至少一个第二和第三橡胶化合物在23℃下具有tanδ值，频率为10Hz，伸长率为10％小于0.25，其中至少该复数模量G *（T） 对于大于或等于0°且小于或等于60℃的所有温度T，一个第一橡胶化合物大于至少一种第二和第三橡胶化合物的复合模量G *（T）
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公开(公告)号：US20150321515A1
公开(公告)日：2015-11-12
申请号：US14655881
申请日：2012-12-28
发明人： Koichi Kotoku
CPC分类号： B60C9/18 , B60C5/00 , B60C9/0007 , B60C9/04 , B60C9/2006 , B60C9/28 , B60C11/01 , B60C2011/0033 , B60C2011/013 , B60C2200/06
摘要： A pneumatic tire includes at least three circumferential main grooves that extend in the tire circumferential direction, and land portions that are partitioned and formed by these circumferential main grooves. In addition, a belt layer is formed by laminating a pair of cross belts each having a belt angle of not less than 10° and not more than 45° as an absolute value and having mutually opposite signs, and a circumferential reinforcing layer having a belt angle within a range of ±5° with respect to the tire circumferential direction. In addition, in a cross-sectional view taken along the tire meridian direction, a diameter D1 at a point at an edge portion on the inner side of a shoulder land portion in the tire width direction and a diameter D2 at a predetermined point within the ground-contact surface of the shoulder land portion have a relationship such that D2
摘要翻译： 一种充气轮胎包括至少三个在轮胎周向上延伸的周向主槽，以及由这些周向主槽分隔和形成的陆部。 另外，通过层叠具有不小于10°且不超过45°的带角度的一对交叉带并具有相互相反的符号而形成带束层，并且具有带状的周向增强层 相对于轮胎周向的±5°的范围内的角度。 另外，沿着轮胎子午线方向截取的剖视图中，在轮胎宽度方向上的肩部陆部的内侧的边缘部的点处的直径D1和在轮胎宽度方向上的规定点的直径D2 肩部陆地部分的接地面具有如下关系：D2
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公开(公告)号：US20150158344A1
公开(公告)日：2015-06-11
申请号：US14405145
申请日：2012-09-28
发明人： Isamu Kishizoe
IPC分类号： B60C19/08
CPC分类号： B60C19/082 , B60C11/005 , B60C19/08 , B60C19/084 , B60C19/088 , B60C2011/0025 , B60C2011/0033 , Y10S152/02
摘要： A pneumatic tire includes a carcass layer, a belt layer, a tread rubber having a cap tread and an undertread, a pair of side wall rubbers, a pair of rim cushion rubbers, and an earthing tread that is exposed to a road contact surface of the tread rubber and that penetrates the cap tread and the undertread to contact the belt layer in an electrically conductive manner. The earthing tread includes a widened portion having a cross-sectional area that widens toward a contact surface with the belt layer at the contact portion with the belt layer. The widened portion of the earthing tread has a profile shape that bulges outward in a tire width direction.
摘要翻译： 一种充气轮胎包括胎体层，带束层，具有胎冠的胎面橡胶和胎面罩，一对侧壁橡胶，一对边缘衬垫橡胶和接地胎面，其暴露于路面接触表面 胎面橡胶，并且穿过胎面胎面和底座以导电方式接触带束层。 接地胎面包括加宽部分，该加宽部分的横截面面积在与带束层的接触部分处的带束层的接触表面变宽。 接地胎面的加宽部分具有在轮胎宽度方向向外凸出的轮廓形状。
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