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公开(公告)号：EP3189987B1
公开(公告)日：2018-10-03
申请号：EP17150045.7
申请日：2017-01-02
发明人： MITARAI, Yasuo
CPC分类号： B60C17/0036 , B60C13/02 , B60C15/0045 , B60C15/0054 , B60C15/0603 , B60C15/0607 , B60C17/0009 , B60C2015/061 , B60C2017/0072
摘要： In a pneumatic tire 2 according to the present invention, in the vicinity of a bead 10 portion, a main portion 42 of a carcass ply 40 is passed through the vicinity of a neutral surface. A tensile force and a compressive force applied to the main portion 42 are small. In the tire 2, occurrence of pinch cut is suppressed. In addition, this structure alleviates a force applied to the main portion 42 even during run-flat running. In the tire 2, damage is less likely to occur even during run-flat running for a long period of time. The tire 2 has excellent run-flat durability. Furthermore, in the tire 2, an increase in the vertical stiffness constant or weight thereof is suppressed.
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公开(公告)号：EP3025881B1
公开(公告)日：2017-12-27
申请号：EP14830075.9
申请日：2014-06-17
CPC分类号： B60C3/04 , B60C11/00 , B60C13/00 , B60C15/0009 , B60C15/0045 , B60C17/0009 , B60C2013/007 , B60C2017/0072
摘要： A run-flat tire (10) includes: a pair of bead portions (12); side wall portions 14 that are respectively connected to the bead portions (12); a carcass (16) that spans between the pair of bead portions (12) and that includes a main body portion (16A) positioned between bead cores (24), and a folded-back portion (16B) folded back from an inner side toward an outer side about each bead core (24); a tread (18) that is provided at the tire radial direction outer side of the main body portion (16A); a side reinforcing layer (20) that is disposed at a tire width direction inner side of the main body portion (16A) and that is configured so as to respectively gradually decrease in thickness toward a crown portion (16C) of the carcass (16) and toward the bead portion (12); and side rubber (22) (a side layer) that is disposed in the side wall portion (14) at the tire outer side of the main body portion (16A), that configures a tire outer face, and that satisfies Gs/Gt6 ‰¤ 0.35, wherein Gs is a thickness of the side rubber (22) and Gt6 is an overall thickness of the side wall portion (14) at a position of a maximum width CW of the main body portion (16A) in the tire width direction.
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公开(公告)号：EP3189988A1
公开(公告)日：2017-07-12
申请号：EP16202314.7
申请日：2016-12-06
发明人： MITARAI, Yasuo
CPC分类号： B60C17/0009 , B60C9/28 , B60C15/0045 , B60C2009/283 , B60C2017/0054 , B60C2017/0072
摘要： In a tire 2, each load support layer 22 extends from a side portion 24 of the tire 2 to a radially inner side of a belt 14 at an inner side of a carcass 12. A ratio (SP/WB) of a width SP from an equator plane to an outer edge 48 of the load support layer 22, relative to a width WB from the equator plane to an edge of the belt 14, in an axial direction is equal to or greater than 0.1 and equal to or less than 0.6.
摘要翻译： 在轮胎2中，每个载荷支撑层22从轮胎2的侧部24延伸到在胎体12的内侧处的带14的径向内侧。宽度SP的比（SP / WB）与 相对于从赤道面到带14的边缘的宽度WB，在轴向方向上相对于载荷支撑层22的外边缘48的赤道面等于或大于0.1且等于或小于0.6 。
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公开(公告)号：EP3165381A1
公开(公告)日：2017-05-10
申请号：EP15814760.3
申请日：2015-06-19
发明人： TANIGUCHI, Hisashi
CPC分类号： B60C15/0045 , B60C3/04 , B60C9/0292 , B60C9/08 , B60C15/0603 , B60C2015/061 , Y02T10/862
摘要： The pneumatic tire (10) has a carcass ply (14) and a tread part (18). The carcass ply (14) includes a main body ply (14m) reaching from a tread part (18) to a bead core (12), and a folded ply (14e) folded around the bead core (12). An end part (14u) of the folded ply (14e) extends to a height position beyond a tire maximum width position (SWM). A bead filler height (BFH) is within the range of 20-60% of the tire sectional height (SH). A bead filler width (W2) at a height position (SH3) corresponding to 30% of the tire sectional height (SH) is no greater than 40% of the bead filler root width (W1). A tread width (TW) is at least 81 % of a tire maximum width (SW), and a curvature radius (R) of the carcass ply (14) at an extension line (FL1) extending in a tread width direction (W) and passing the tire maximum width position (SWM) in a cross section in the direction of tire width is at least 30 mm.
摘要翻译： 充气轮胎（10）具有胎体帘布层（14）和胎面部（18）。 胎体帘布层（14）包括从胎面部（18）到达胎圈芯（12）的主体帘布层（14m）以及围绕胎圈芯（12）折叠的折叠帘布层（14e）。 折叠层（14e）的端部（14u）延伸到超过轮胎最大宽度位置（SWM）的高度位置。 胎圈填充物高度（BFH）在轮胎截面高度（SH）的20-60％的范围内。 对应于轮胎截面高度（SH）的30％的高度位置（SH3）处的胎圈填料宽度（W2）不大于胎圈填料根部宽度（W1）的40％。 胎面宽度（TW）为沿胎面宽度方向（W）延伸的延长线（FL1）处的轮胎最大宽度（SW）和胎体帘布层（14）的曲率半径（R）的至少81％ 并且在轮胎宽度方向上的横截面中通过轮胎最大宽度位置（SWM）至少为30mm。
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公开(公告)号：EP3129242A1
公开(公告)日：2017-02-15
申请号：EP15777488.6
申请日：2015-03-19
CPC分类号： B60C17/0009 , B29D30/02 , B29D30/30 , B29D30/32 , B29D30/36 , B29D2030/201 , B29D2030/3207 , B60B9/00 , B60B25/006 , B60B25/008 , B60C7/102 , B60C7/14 , B60C7/26 , B60C15/0045 , B60C15/0216 , B60C17/0018 , B60C2009/0223 , Y10T152/10864
摘要： A tire includes at least one body defining a plurality of body ply layers, and a toroidal element located between the body ply layers. The toroidal element includes inner and outer regions formed by the body ply layers, and a central region formed by an inner rubber component located between the body ply layers. At least a portion of the central region is more elastic than the inner and outer regions. The toroidal element includes a first sidewall portion extending along at least a portion of the first sidewall region of the tire, and a second sidewall portion extending along at least a portion of the second sidewall region of the tire. The toroidal element is pre-stressed such that the first sidewall portion of the toroidal element exerts a first axially outward force, and such that the second sidewall portion of the toroidal element exerts a second axially outward force.
摘要翻译： 轮胎包括限定多个主体层层的至少一个主体和位于主体层之间的环形元件。 环形元件包括由主体层层形成的内部和外部区域以及由位于主体层之间的内部橡胶部件形成的中心区域。 中心区域的至少一部分比内部和外部区域更具弹性。 环形元件包括沿着轮胎的第一侧壁区域的至少一部分延伸的第一侧壁部分和沿轮胎的第二侧壁区域的至少一部分延伸的第二侧壁部分。 环形元件被预应力，使得环形元件的第一侧壁部分施加第一轴向向外的力，并且使得环形元件的第二侧壁部分施加第二轴向向外的力。
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公开(公告)号：EP3064373A4
公开(公告)日：2016-11-09
申请号：EP14857635
申请日：2014-07-01
申请人： BRIDGESTONE CORP
发明人： HATANAKA SHINTARO , KUWAYAMA ISAO
CPC分类号： B60C9/20 , B60C9/02 , B60C9/2009 , B60C9/22 , B60C9/28 , B60C11/02 , B60C11/03 , B60C11/04 , B60C15/00 , B60C15/0036 , B60C15/0045 , B60C2009/2016 , B60C2009/2019 , B60C2009/2022 , B60C2009/2233 , B60C2009/2261 , B60C2009/2266 , B60C2011/0353
摘要： A pneumatic tire (10) is formed to include a tread portion (11). The pneumatic tire (10) includes a carcass (15), an inclined belt (16), and a circumferential belt (17). The inclined belt (16) is formed by one or more inclined belt layers (16a, 16b) including cords inclined relative to the tire circumferential direction. A circumferential main groove (14) is provided in the tread portion (11). The inclined belt (16) includes a high-angle inclined belt layer (16a) in which the cords are at an inclination angle of 35° or more to 90° or less relative to the tire circumferential direction. In at least one tread half portion, an edge of the high-angle inclined belt layer (16a) in the tire width direction is positioned further outward in the tire width direction than the circumferential main groove (14) disposed furthest outward in the tire width direction. The interval in the tire width direction from the edge to the center of the circumferential main groove (14) is 0.2W 1 or more to 0.35W 1 or less, where W 1 is the width of the high-angle inclined belt layer (16a) in the tire width direction.
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公开(公告)号：EP3064373A1
公开(公告)日：2016-09-07
申请号：EP14857635.8
申请日：2014-07-01
发明人： HATANAKA, Shintaro , KUWAYAMA, Isao
CPC分类号： B60C9/20 , B60C9/02 , B60C9/2009 , B60C9/22 , B60C9/28 , B60C11/02 , B60C11/03 , B60C11/04 , B60C15/00 , B60C15/0036 , B60C15/0045 , B60C2009/2016 , B60C2009/2019 , B60C2009/2022 , B60C2009/2233 , B60C2009/2261 , B60C2009/2266 , B60C2011/0353
摘要： A pneumatic tire (10) is formed to include a tread portion (11). The pneumatic tire (10) includes a carcass (15), an inclined belt (16), and a circumferential belt (17). The inclined belt (16) is formed by one or more inclined belt layers (16a, 16b) including cords inclined relative to the tire circumferential direction. A circumferential main groove (14) is provided in the tread portion (11). The inclined belt (16) includes a high-angle inclined belt layer (16a) in which the cords are at an inclination angle of 35° or more to 90° or less relative to the tire circumferential direction. In at least one tread half portion, an edge of the high-angle inclined belt layer (16a) in the tire width direction is positioned further outward in the tire width direction than the circumferential main groove (14) disposed furthest outward in the tire width direction. The interval in the tire width direction from the edge to the center of the circumferential main groove (14) is 0.2W 1 or more to 0.35W 1 or less, where W 1 is the width of the high-angle inclined belt layer (16a) in the tire width direction.
摘要翻译： 充气轮胎（10）形成为包括胎面部（11）。 充气轮胎（10）包括胎体（15），倾斜带（16）和周向带（17）。 倾斜带（16）由包括相对于轮胎周向倾斜的帘线的一个或多个倾斜带束层（16a，16b）形成。 在胎面部（11）设有周向主槽（14）。 倾斜带（16）具有相对于轮胎周向的倾斜角度为35°以上且90°以下的高角度倾斜带束层（16a）。 在至少一个胎面半部中，高角度倾斜带束层（16a）的轮胎宽度方向上的边缘位于比在轮胎宽度最外侧设置的周向主槽（14）更靠轮胎宽度方向外侧 方向。 从周向主槽（14）的边缘到中心的轮胎宽度方向上的间隔为0.2W1以上且0.35W1以下，其中，W1是高角度倾斜带束层（16a）的宽度 轮胎宽度方向。
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公开(公告)号：EP3059102A1
公开(公告)日：2016-08-24
申请号：EP14862256.6
申请日：2014-10-28
发明人： YUKAWA Naoki
CPC分类号： B60C15/0009 , B60C5/142 , B60C7/12 , B60C9/02 , B60C11/00 , B60C13/00 , B60C15/0036 , B60C15/0045 , B60C15/04 , B60C15/06 , B60C15/0607 , B60C17/0009 , B60C2011/0025 , B60C2013/006 , B60C2015/009 , B60C2015/061 , B60C2015/0614 , B60C2015/0621 , B60C2017/0063
摘要： [Object] A run flat tire excellent in both durability and ride comfort is provided.
[Solution] A straight line L1 represents a straight line connecting between: a point P1 at which a height H1 is 17 mm; and a point P2 at which a thickness from the point P1 is a minimum thickness Ts. A point C represents a point which is distant from the point P2 on the straight line L1 by a distance that is 0.4 times Ts. A point B represents a point of intersection of: a straight line L2 that extends in the axial direction through a radially outer end of a core 36; and a straight line L3 that extends in the radial direction through an axially outer end of a core side portion 46a of a turned-up portion 46. A straight line L4 represents a straight line that passes through the point C and the point B. The thickness Ts is greater than or equal to 10 mm, and not greater than 17 mm. The turned-up portion 46 extends through a region surrounded by an axially outer surface of a main portion 44, the straight line L2, the straight line L1, and the straight line L4.摘要翻译： 本发明提供耐久性和乘坐舒适性均优异的防漏胎。 [解决方案]直线L1表示连接：高度H1为17mm的点P1， 以及距点P1的厚度为最小厚度Ts的点P2。 点C表示与直线L1上的点P2相距0.4倍Ts的距离的点。 点B表示通过芯部36的径向外端在轴向上延伸的直线L2， 以及直线L3，该直线L3在径向方向上延伸穿过翻卷部分46的芯侧部分46a的轴向外端。直线L4表示通过点C和点B的直线。 厚度Ts大于或等于10mm，并且不大于17mm。 翻卷部分46延伸穿过由主要部分44的轴向外表面，直线L2，直线L1和直线L4围绕的区域。
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公开(公告)号：EP1919720B1
公开(公告)日：2016-03-09
申请号：EP06813450.1
申请日：2006-08-15
发明人： JIN, Jie , CRANO, Michael
CPC分类号： B60C15/0045 , B60C9/09 , B60C17/0009 , B60C17/0027 , Y10T152/10765 , Y10T152/10819 , Y10T152/10837 , Y10T152/10864
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公开(公告)号：EP2946946A1
公开(公告)日：2015-11-25
申请号：EP15167081.7
申请日：2015-05-11
发明人： Isaka, Wataru
CPC分类号： B60C15/0045 , B60C15/04 , B60C2015/048 , B60C2200/10 , Y10T152/10819
摘要： [Subject Matter] To provide a pneumatic tire that exhibits excellent steering stability and riding comfort
[Solution(s)] Carcass ply 24 of tire 2 is provided with main portion (24a) bridging one bead 8 to the other bead 8 and with turn-up portion (24b) positioned on the axially outer side of each bead 8 to extend in a radially outward direction. Beads 8 each have core 20 which includes a wire extending in a circumferential direction. The number of strands in core 20 is two or greater. The number of turns is at least three times the number of strands in core 20. When tire 2 is mounted on normal rim 22, the radially outer edge of the wire is positioned on the radially inner side of the radially outer edge of flange 34 of rim 22. Outer-edge part (24c) of turn-up portion (24b) overlaps edge part (12a) of belt 12.摘要翻译： [主题]提供一种表现出优异的操纵稳定性和乘坐舒适性的充气轮胎。[解决方案]轮胎2的胎体帘布层24设置有将一个胎圈8桥接至另一个胎圈8的主部分24a， （24b）定位在每个胎圈8的轴向外侧上以沿径向向外方向延伸。 每个珠子8具有包括沿圆周方向延伸的金属丝的芯部20。 芯20中的股数为2或更多。 匝数至少是芯部20中股线数量的三倍。当轮胎2安装在正常轮辋22上时，金属丝的径向外边缘位于法兰34的径向外边缘的径向内侧 卷边部24b的外缘部24c与带12的端部12a重叠。
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