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    • 63. 发明专利
    • Pneumatic tire
    • 气动轮胎
    • JP2014073715A
    • 2014-04-24
    • JP2012221055
    • 2012-10-03
    • Yokohama Rubber Co Ltd:The横浜ゴム株式会社
    • NIWA MASAKAZU
    • B60C13/00B60C9/08B60C15/06
    • B60C13/002B60C5/00B60C9/04B60C9/09B60C9/14B60C11/033B60C11/11B60C15/0009B60C15/0603B60C2015/061
    • PROBLEM TO BE SOLVED: To provide a pneumatic tire for improving durability by preventing cut resistance and internal failure.SOLUTION: In the pneumatic tire, a belt layer 7 is arranged on the outer peripheral side of a carcass layer, by arranging a bead filler 6 on the outer peripheral side of a bead core, by hoisting to the outside from the tire inside around the bead core 5, by installing the carcass layer 4 between a pair of bead parts 3 and 3, and a protective layer 8 including an organic fiber cord is arranged outside the carcass layer in a sidewall part 2, and an upper end part 8a of the protective layer is arranged between a position P1 of 20 mm to the inside in the tire width direction along the carcass layer from an outer end position of the belt layer and a position P2 of 15 mm to the outside in the tire width direction, and a lower end part 8b of the protective layer is arranged between a body part 4a of the carcass layer and the bead filler, and the overlapping length C of the protective layer and the bead filler is set to 10 mm or more, and a rubber layer 9 having a thickness of 0.5 mm-2.0 mm and being 0.12 or less in tanδ at 60°C, is interposed between the protective layer and the body part of the carcass layer.
    • 要解决的问题:提供一种通过防止切割阻力和内部故障来提高耐久性的充气轮胎。解决方案:在充气轮胎中,通过将胎圈填料6布置在胎体层的外周侧,设置带束层7 在胎圈芯的外周侧,通过将胎体层4安装在一对胎圈部3和3之间,通过将胎体层4安装在胎圈芯5的周围的轮胎外侧,以及包含有机纤维的保护层8 帘线被布置在侧壁部2的胎体层的外侧,保护层的上端部8a从胎体层的外侧端部位于沿着胎体层的轮胎宽度方向的内侧的位置P1为20mm的位置 带束层和在轮胎宽度方向上向外侧15mm的位置P2,并且保护层的下端部8b布置在胎体层的主体部分4a和胎圈填料之间,并且重叠长度C 的 将保护层和珠粒填料设定为10mm以上,在保护层和本体之间插入厚度为0.5mm〜2.0mm,tanδ在60℃下为0.12以下的橡胶层9 胴体层的一部分。
    • 64. 发明专利
    • Pneumatic tire
    • 气动轮胎
    • JP2014061839A
    • 2014-04-10
    • JP2012209167
    • 2012-09-24
    • Sumitomo Rubber Ind Ltd住友ゴム工業株式会社
    • ITO HIROSHI
    • B60C15/06B60C15/00
    • B60C15/04B60C15/0018B60C15/0242B60C15/05B60C15/0603B60C15/0607B60C17/0009B60C2001/0058B60C2015/061B60C2015/0614
    • PROBLEM TO BE SOLVED: To provide a pneumatic tire 2 which is superior in ride comfort and run flat durability.SOLUTION: A tire 2 comprises beads 10, a carcass 12 and an insert 18. The carcass 12 comprises a carcass ply 36. An inside part 34a of the bead 10 comprises an inside core 46a touching the end of the carcass ply 36 internally and an inside apex 48a covering the inside core 46a and extending in a radial direction substantially outward from the inside core 46a. An outside part 34b of the bead 10 comprises an outside core 46b touching the end of the carcass ply 36 externally and an outside apex 48b covering the outside core 46b and extending in a radial direction substantially outward from the outside core 46b. A ratio of complex elastic modulus Ea of the inside apex 48a to complex elastic modulus Eb of the outside apex 48b is 0.3 or less. A ratio of the complex elastic modulus Ea to the complex elastic modulus Ec of the insert 18 is 1 or more.
    • 要解决的问题:提供一种乘坐舒适性和跑步平坦耐久性优良的充气轮胎2.解决方案:轮胎2包括胎圈10,胎体12和插入件18.胎体12包括胎体帘布层36.内部 胎圈10的部分34a包括内部芯部46a,其内部接触胎体帘布层36的端部,内部顶点48a覆盖内部芯部46a并且在径向方向上从内部芯部46a基本向外延伸。 胎圈10的外侧部分34b包括外部芯部46b,外部芯部46b与胎体帘布层36的外部接触,外侧顶点48b覆盖外部芯部46b,并且从外部芯部46b基本向外延伸。 内侧顶点48a的复合弹性模量Ea与外侧顶点48b的复合弹性模量Eb的比例为0.3以下。 插入物18的复弹性模量Ea与复数弹性模量Ec的比例为1以上。
    • 68. 发明专利
    • Two-wheeled automotive vehicle tire
    • 两轮汽车轮胎
    • JP2013035540A
    • 2013-02-21
    • JP2012140836
    • 2012-06-22
    • Sumitomo Rubber Ind Ltd住友ゴム工業株式会社
    • MATSUNAMI TOSHIYUKI
    • B60C9/08B60C15/06
    • B60C15/0603B60C9/2204B60C15/0018B60C15/0036B60C2015/009B60C2015/061B60C2200/10
    • PROBLEM TO BE SOLVED: To provide a two-wheeled automotive vehicle pneumatic tire improved in ride comfort and cornering stability.SOLUTION: A band 12 of a tire 2 comprises a topping rubber and a cord that is helically wound in a circumferential direction of the tire 2. A carcass 10 includes a first carcass ply 22 and a second carcass ply 24 that is layered radially outside the first carcass ply 22. The first carcass ply 22 is turned up around beads 8. The first carcass ply 22 includes a turnup portion 34 extending radially and substantially outwardly, and a turnup end 36 located radially outside the turnup portion 34. The turnup end 36 is located axially inside the second carcass ply 24. When a straight line connecting a tread end of the tire and the heel of the bead is denoted by LH, a tip of an apex is located radially inward from the tread end, at a position between the tread end and a position distant by 1/3LH from the tread end in a radially inward direction.
    • 要解决的问题:提供一种提高乘坐舒适性和转弯稳定性的两轮汽车充气轮胎。 解决方案:轮胎2的带12包括顶部橡胶和沿轮胎2的圆周方向螺旋缠绕的帘线。胎体10包括第一胎体帘布层22和第二胎体帘布层24,其被层叠 在第一胎体帘布层22的径向外侧。第一胎体帘布层22绕着胎圈8转过。第一胎体帘布层22包括径向和基本向外延伸的翻转部分34和位于翻转部分34径向外侧的翻转端36。 翻转端36位于第二胎体帘布层24的轴向内部。当将轮胎的胎面端和胎圈的跟部连接的直线由LH表示时,顶点的尖端从胎面端径向向内定位, 位于胎面端与位于径向向内的距离胎面端1 / 3LH的位置之间的位置。 版权所有(C)2013,JPO&INPIT