公开(公告)号：US20090266462A1

公开(公告)日：2009-10-29

申请号：US12094685

申请日：2006-11-29

申请人： Masahiko Yamamoto ,  Hidenobu Akahane

发明人： Masahiko Yamamoto ,  Hidenobu Akahane

IPC分类号： B60C9/00 ,  B60C9/02 ,  B60C9/18

CPC分类号： B60C9/0042 ,  B60C9/08 ,  B60C9/20

摘要： A pneumatic tire for a motorcycle, wherein the tire is optimized in the ground contact shape and the ground contact pressure distribution during high-speed running to achieve excellent driving stability, is provided. Furthermore, a pneumatic tire for a motorcycle, wherein the tire is optimized in the ground contact shape and the ground contact pressure distribution during high-speed running to realize excellent gripping force to stabilize the behavior of the tire near its cornering limit and excellent cornering ability, is provided.Provided is a pneumatic tire for a motorcycle, which employs a multifilament-twist polyketone fiber cord, as a reinforcing material, having a total dtex value of 1000 to 20000 dtex per cord and satisfying the relationships represented by the following Expressions (I) and (II): σ≧−0.01E+1.2  (I) σ≧0.02  (II) (wherein, E is an elastic modulus (cN/dtex) at 25° C. under a load of 49 N, and σ is a heat shrinkage stress (cN/dtex) at 177° C.).

摘要翻译： 本发明提供一种摩托车用充气轮胎，其特征在于，轮胎在高速行驶中的接地形状和接地压力分布优化，达到良好的行驶稳定性。 此外，一种用于摩托车的充气轮胎，其中轮胎在高速行驶期间以接地形状和接地压力分布优化，以实现优异的夹紧力，以使轮胎的转弯极限附近的行为稳定并具有优异的转弯能力 ，被提供。 本发明提供一种摩托车用充气轮胎，其采用复丝扭转聚酮纤维帘线作为增强材料，每根绳索的总dtex值为1000〜20000dtex，满足下述表达式（I）和（ II）：σ= -0.01E + 1.2（I）σ= 0.02（II）（其中，E是在25℃，49N负荷下的弹性模量（cN / dtex），σ是 在177℃下的热收缩应力（cN / dtex））。

公开(公告)号：US07886790B2

公开(公告)日：2011-02-15

申请号：US11795516

申请日：2006-01-20

申请人： Hiroyuki Yokokura ,  Hidenobu Akahane ,  Yugo Zuigyo ,  Daisuke Maehara ,  Masahiko Yamamoto

发明人： Hiroyuki Yokokura ,  Hidenobu Akahane ,  Yugo Zuigyo ,  Daisuke Maehara ,  Masahiko Yamamoto

IPC分类号： B60C17/00 ,  B60C9/00 ,  B60C9/04 ,  B60C13/00 ,  B60C15/06 ,  D02G3/48

CPC分类号： D02G3/48 ,  B60C9/0042 ,  B60C9/0207 ,  B60C9/04 ,  B60C9/09 ,  B60C15/0018 ,  B60C15/0036 ,  B60C17/0009 ,  B60C2015/0639 ,  Y10T152/10828 ,  Y10T152/10864 ,  Y10T428/2967

摘要： This invention relates to a tire having an improved durability in the run-flat running without damaging the ride comfort in the usual running, and more particularly to a run-flat tire comprising a sidewall portion provided with a side reinforcing rubber layer having a crescent shape at section wherein a cord layer including a polyketone fiber cord satisfying the following conditions of the following equations (I) and (II): σ≧−0.01×E+1.2  (I) σ≧0.02  (II) [wherein σ is a thermal shrinkage stress at 177° C. (cN/dtex) and E is an elastic modulus at 25° C. under a load of 49 N (cN/dtex)] is disposed in at least a part of a region A ranging from a belt end to a maximum width part of a tire side portion and a region B ranging from a neighborhood of a bead core to a bead filler.

摘要翻译： 本发明涉及一种轮胎，其在平直行驶中具有改善的耐久性，而不损害通常行驶中的乘坐舒适性，更具体地，涉及一种具有侧壁部分的防浪胎轮胎，侧胎部分设置有具有月牙形的侧面增强橡胶层 在其中包含满足以下等式（I）和（II）的以下条件的聚酮纤维帘线的帘线层：＆lt; gr = -0.01×E + 1.2（I）＆sgr;≥0.02（II）[其中＆ 是177℃下的热收缩应力（cN / dtex），E是在49N（cN / dtex）的载荷下在25℃下的弹性模量]设置在区域A的至少一部分 从轮胎侧部的带端部到最大宽度部分以及从胎圈芯附近到胎圈填料的区域B。

公开(公告)号：US20080156409A1

公开(公告)日：2008-07-03

申请号：US11795516

申请日：2006-01-20

申请人： Hiroyuki Yokokura ,  Hidenobu Akahane ,  Yugo Zuigyo ,  Daisuke Maehara ,  Masahiko Yamamoto

发明人： Hiroyuki Yokokura ,  Hidenobu Akahane ,  Yugo Zuigyo ,  Daisuke Maehara ,  Masahiko Yamamoto

IPC分类号： B60C17/04

CPC分类号： D02G3/48 ,  B60C9/0042 ,  B60C9/0207 ,  B60C9/04 ,  B60C9/09 ,  B60C15/0018 ,  B60C15/0036 ,  B60C17/0009 ,  B60C2015/0639 ,  Y10T152/10828 ,  Y10T152/10864 ,  Y10T428/2967

摘要： This invention relates to a tire having an improved durability in the run-flat running without damaging the ride comfort in the usual running, and more particularly to a run-flat tire comprising a sidewall portion provided with a side reinforcing rubber layer having a crescent shape at section wherein a cord layer including a polyketone fiber cord satisfying the following conditions of the following equations (I) and (II): σ≧−0.01×E+1.2   (I) σ≧0.02   (II) [wherein σ is a thermal shrinkage stress at 177° C. (cN/dtex) and E is an elastic modulus at 25° C. under a load of 49 N (cN/dtex)] is disposed in at least a part of a region A ranging from a belt end to a maximum width part of a tire side portion and a region B ranging from a neighborhood of a bead core to a bead filler.

摘要翻译： 本发明涉及一种轮胎，其在平直行驶中具有改善的耐久性，而不损害通常行驶中的乘坐舒适性，更具体地，涉及一种具有侧壁部分的防浪胎轮胎，侧胎部分设置有具有月牙形的侧面增强橡胶层 在其中包含满足以下等式（I）和（II）的以下条件的聚酮纤维帘线的帘线层的部分：<？in-line-formula description =“在线公式”end =“lead”→sigma > = - 0.01xE + 1.2（I）<？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“ （“N”）= 0.02（II）<？in-line-formula description =“In-line Formulas”end =“tail”？>其中sigma是177℃的热收缩应力（cN / dtex ），E是在49N（cN / dtex）的载荷下在25℃下的弹性模量]设置在范围从轮胎侧部的带端到最大宽度部分的区域A的至少一部分中 和一个区域B从一个 胎圈芯与胎圈填料的邻接。

公开(公告)号：US07886791B2

公开(公告)日：2011-02-15

申请号：US11883332

申请日：2006-01-20

申请人： Hidenobu Akahane ,  Hiroyuki Yokokura

发明人： Hidenobu Akahane ,  Hiroyuki Yokokura

IPC分类号： B60C9/04 ,  B60C9/00 ,  D02G3/48

CPC分类号： D02G3/48 ,  B60C9/0042 ,  B60C9/08 ,  Y10T152/10513

摘要： A pneumatic radial tire for a passenger car having a pair of bead portions and a carcass having at least one carcass ply toroidally extending between a pair of bead cores embedded in the respective bead portions and containing organic fiber cords. The organic fiber cord is a polyketone fiber cord satisfying the following equation: σ≧−0.01E+1.2 and σ≧0.02, where σ is a thermal shrinkage stress at 177° C. (cN/dtex) and E is an elastic modulus at 25° C. under a load of 49N (cN/dtex). The cord has a ply-twisting coefficient N1 of 0.35-0.70 and a cable-twisting coefficient N2 of 0.50-0.95, where N1=n1×(0.125×D1/ρ)1/2×10−3, N2=n2×(0.125×D2/ρ)1/2×10−3, n1 is a ply twisting number (turns/10 cm), n2 is a cable twisting number (turns/10 cm), D1 is dtext of ply-twisted yarn, D2 is a total dtex, and ρ is a specific gravity of the cord (g/cm3).

摘要翻译： 一种用于乘用车的充气子午线轮胎，具有一对胎圈部分和胎体，所述胎圈部分和胎体具有至少一个胎体帘布层，所述胎体帘布层环形地延伸在嵌入相应胎圈部分中并包含有机纤维帘线的一对珠芯之间。 有机纤维帘线是满足以下等式的聚酮纤维帘线：＆sgr;≥0.01E+ 1.2和＆sgr;≥0.02，其中＆sgr; 是177℃下的热收缩应力（cN / dtex），E是在49N（cN / dtex）的载荷下在25℃下的弹性模量。 帘线的捻合系数N1为0.35-0.70，捻线系数N2为0.50-0.95，其中N1 = n1×（0.125×D1 / rgr）1/2×10-3，N2 = n2× （0.125×D2 / rgr）1/2×10-3，n1为层叠捻数（匝数/ 10cm），n2为电缆捻数（匝数/ 10cm），D1为双绞线的dtext ，D2是总分数，＆rgr; 是帘线的比重（g / cm 3）。

公开(公告)号：US20080099118A1

公开(公告)日：2008-05-01

申请号：US11883332

申请日：2006-01-20

申请人： Hidenobu Akahane ,  Hiroyuki Yokokura

发明人： Hidenobu Akahane ,  Hiroyuki Yokokura

IPC分类号： B60C9/12

CPC分类号： D02G3/48 ,  B60C9/0042 ,  B60C9/08 ,  Y10T152/10513

摘要： This invention relates to a pneumatic radial tire for a passenger car comprising a pair of bead portions and a carcass comprised of at least one carcass ply toroidally extending between a pair of bead cores embedded in the respective bead portions and containing organic fiber cords, characterized in that the organic fiber cord constituting the carcass ply is a polyketone fiber cord satisfying the following equation (I): σ≧−0.01E+1.2 and σ≧0.02  (I) [wherein σ is a thermal shrinkage stress at 177° C. (cN/dtex) and E is an elastic modulus at 25° C. under a load of 49N (cN/dtex)] and the polyketone fiber cord has a ply-twisting coefficient N1 defined by the following equation (II) of 0.35-0.70 and a cable-twisting coefficient N2 defined by the following equation (III) of 0.50-0.95: N1=n1×(0.125×D1/ρ)1/2×10−3  (II) N2=n2×(0.125×D2/ρ)1/2×10−3  (III) [in the equations (II) and (III), n1 is a ply twisting number (turns/10 cm), n2 is a cable twisting number (turns/10 cm), D1 is dtext of ply-twisted yarn, D2 is a total dtex, and ρ is a specific gravity of the polyketone ocrd (g/cm3)].