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公开(公告)号：EP2077192B1
公开(公告)日：2013-10-23
申请号：EP07806737.8
申请日：2007-09-05
发明人： EBIKO, Masahiro
CPC分类号： B60C9/22 , B60C11/0083 , B60C11/0306
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公开(公告)号：EP2196330B1
公开(公告)日：2012-06-27
申请号：EP08777767.8
申请日：2008-07-02
发明人： EBIKO, Masahiro
CPC分类号： B60C15/0045 , B60C3/06 , B60C9/17 , B60C2015/009 , Y10T152/10855
摘要： A pneumatic radial tire having a structure where the lapel edge of carcass is sandwiched between belt layers and exhibiting high durability and steering stability can be produced easily using a carcass material of an existing size without preparing an ultra-wide carcass material. Carcasses (A, B) of two layers are extended from a tread portion (1) to a bead portion (3) via right and left sidewall portions (2), and the opposite ends thereof are turned down from the inside of the tire to the outside around right and left bead cores (4, 4). A belt layer (6) is arranged on the outer circumferential side of the carcasses (A, B) and the overall width of the carcasses (A, B) in the tire width direction is substantially equalized and the carcasses (A, B) are offset reversely in the tire width direction. The turn back lengths from the right and left bead cores (4, 4) at the opposite ends of the carcasses (A, B) are differentiated, the carcass with shorter turn back length is terminated in the vicinity of the bead core (4), and the carcass of longer turn back length is extended to the inside of the belt layer end portion (6e) in the tire width direction and is terminated thereat.
摘要翻译： 在不准备超宽胎体材料的情况下，可以使用现有尺寸的胎体材料容易地制造具有其中胎体的翻边夹在带层之间并且具有高耐久性和操纵稳定性的结构的充气子午线轮胎。 两层胎体（A，B）经由左右侧壁部（2）从胎面部（1）延伸至胎圈部（3），并且其两端从轮胎内侧向下翻转至 围绕左右胎圈芯（4,4）的外侧。 在胎体（A，B）的外周侧配置有带束层（6），胎体（A，B）的轮胎宽度方向的整体宽度大致相同，且胎体（A，B）为 在轮胎宽度方向上反向偏移。 在胎体（A，B）的相对两端的左右胎圈芯（4,4）的折回长度不同，具有较短折回长度的胎体终止于胎圈芯（4）附近， 并且具有较长折返长度的胎体在轮胎宽度方向上延伸至带束层端部6e的内部并终止于此处。
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公开(公告)号：EP2077192B8
公开(公告)日：2014-01-08
申请号：EP07806737.8
申请日：2007-09-05
发明人： EBIKO, Masahiro
CPC分类号： B60C9/22 , B60C11/0083 , B60C11/0306
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公开(公告)号：EP2196330A1
公开(公告)日：2010-06-16
申请号：EP08777767.8
申请日：2008-07-02
发明人： EBIKO, Masahiro
CPC分类号： B60C15/0045 , B60C3/06 , B60C9/17 , B60C2015/009 , Y10T152/10855
摘要： A pneumatic radial tire having a structure where the lapel edge of the carcass is tucked under a belt layer and exhibiting high durability and steering stability can be easily produced using a carcass material of an existing size without preparing an ultra-wide carcass material. Two layers of carcasses (A, B) are extended from a tread portion (1) to a bead portion (3) via right and left sidewall portions (2), and the opposite ends thereof are turned down from the inside of the tire to the outside around right and left bead cores (4, 4). A belt layer (6) is arranged on the outer circumferential side of the carcasses (A, B) and the overall width of the carcasses (A, B) in the tire width direction is essentially equal and the carcasses (A, B) are offset in opposite directions in the tire width direction. The turn back lengths from the right and left bead cores (4, 4) at the opposite ends of the carcasses (A, B) are made different, the carcass with shorter turn back length is terminated in the vicinity of the bead core (4), and the carcass of longer turn back length is extended to the inside of the belt layer and portion (6e) in the tire width direction and is terminated thereat.
摘要翻译： 在没有制备超宽胎体材料的情况下，可以使用现有尺寸的胎体材料容易地生产具有这样结构的充气子午线轮胎，其中胎体的翻边被收拢在带层下面并且显示出高耐久性和操纵稳定性。 两层胎体（A，B）通过左右侧壁部分（2）从胎面部分（1）延伸至胎圈部分（3），并且其两端从轮胎内部向下翻转到 围绕左右胎圈芯（4,4）的外侧。 在胎体（A，B）的外周侧配置带束层（6），胎体（A，B）的轮胎宽度方向的整体宽度大致相等，胎体（A，B）为 沿轮胎宽度方向的相反方向偏移。 使在胎体（A，B）相对两端的左右胎圈芯（4,4）的折返长度不同，具有较短折返长度的胎体终止于胎圈芯（4 ），并且具有较长折返长度的胎体在轮胎宽度方向上延伸到带束层和部分（6e）的内部并终止于此处。
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公开(公告)号：EP2077192A1
公开(公告)日：2009-07-08
申请号：EP07806737.8
申请日：2007-09-05
发明人： EBIKO, Masahiro
CPC分类号： B60C9/22 , B60C11/0083 , B60C11/0306
摘要： At least two circumferential main grooves (61, 62) and three land portions (63, 64, 65) are formed in a tread portion of a pneumatic tire (1) on each side of a tire equatorial plane. In a cross section in a tire meridian direction of the pneumatic tire (1), profile lines of the land portions (63, 64, 65) form arcs, and extension lines of profile lines of adjacent land portions (63, 64, and 64, 65) intersect with inflection points (Pa, Pb) in the circumferential main grooves (61, 62). Tensile strength of a reinforcing layer (8) in areas of the land portions (63, 64, 65) is larger than that in an area of the circumferential main grooves (61, 62) having the inflection points (Pa, Pb).
摘要翻译： 在充气轮胎（1）的轮胎赤道面的两侧的胎面部上形成至少两个周向主槽（61,62）和三个陆部（63,64,65）。 在充气轮胎（1）的轮胎子午线方向的截面中，接地部（63,64,65）的轮廓线形成圆弧，相邻的接地部（63,64,64）的轮廓线的延长线 ，65）与周向主槽（61,62）中的拐点（Pa，Pb）相交。 增强层（8）的接地部（63,64,65）的区域的抗拉强度大于具有拐点（Pa，Pb）的周向主槽（61,62）的区域的抗拉强度。
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