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1. 发明授权

EP3156259B1 TIRE 有权
公开(公告)号：EP3156259B1
公开(公告)日：2018-10-31
申请号：EP15807378.3
申请日：2015-05-25
申请人： Bridgestone Corporation
发明人： KATAYAMA, Shinsaku , KAJI, Yoshio , KURATA, Takayuki
IPC分类号： B60C11/03 , B60C11/12
CPC分类号： B60C11/0302 , B60C11/03 , B60C11/033 , B60C11/0332 , B60C11/12 , B60C11/1236 , B60C2011/0344 , B60C2011/0374
摘要： A tire having V-shaped lug grooves displays both improved grip performance on snow and anti-hydroplaning performance. To that end, an absolute value of difference between a lug groove diagonal angle ( ¸ LG ), which is an angle of diagonal lug grooves (13) in a tread (11) surface with respect to a tire axial direction, and a profile line diagonal angle ( ¸ FP ), which is an angle of a normal line of a leading-end profile line of a contact patch shape of the tire (10) with respect to the tire axial direction, is set to 0° or more and 60° or less at respective positions in the tire axial direction. And diagonal lug grooves (13) are formed such that absolute values of difference in a center portion, which is defined to be 20% in width of a contact patch width (W) with an equatorial plane at a center, and an intermediate portion, which is defined to be 20% of the contact patch width (W) on each axially outer side adjacent to the center portion, are larger than an absolute value of difference in a shoulder portion, which is defined to be 20% of the contact patch width (W) on each axially outer side adjacent to the intermediate portion.

2. 发明授权

EP2363305B1 PNEUMATIC TIRE FOR TWO-WHEELED MOTOR VEHICLE 失效
公开(公告)号：EP2363305B1
公开(公告)日：2018-09-05
申请号：EP09827384.0
申请日：2009-11-20
申请人： Bridgestone Corporation
发明人： KATAYAMA, Shinsaku
IPC分类号： B60C11/00 , B60C9/18 , B60C9/22
CPC分类号： B60C9/2204 , B60C2200/10
摘要： A pneumatic tire for motorcycles is provided which can improve the traction performance especially during sharp cornering by largely leaning a vehicle (motorbike) followed by acceleration, and the stability during leaning of a vehicle in addition to enhancing the steering stability at high speed. A pneumatic tire for motorcycles having a tread portion 11 formed in a circular shape, the tread portion 11 having a crown portion which has a spiral belt layer 3 in its inside in the radial direction of the tire, the spiral belt layer having an angle of 0 to 5° with respect to the circumferential direction of the tire and an arrangement width 0.5 to 0.8 times as large as the tread width, wherein the spiral belt layer is arranged in such a manner that the center of the transverse direction of the spiral belt layer coincides with the tire equator and the curvature radius (R1) from the end portion of the spiral belt layer to the end portion of the tread portion is larger than the curvature radius (R2) from the end portion of the spiral belt layer to the tire equatorial plane.

3. 发明公开

EP3308982A1 PNEUMATIC TIRE 有权
标题翻译：充气轮胎
公开(公告)号：EP3308982A1
公开(公告)日：2018-04-18
申请号：EP16811312.4
申请日：2016-04-19
申请人： Bridgestone Corporation
发明人： KURATA, Takayuki , KATAYAMA, Shinsaku , AMANO, Masakazu
IPC分类号： B60C11/13 , B60C11/03 , B60C11/12
CPC分类号： B60C11/1353 , B60C3/04 , B60C11/0083 , B60C11/0302 , B60C11/0309 , B60C11/0311 , B60C11/0316 , B60C11/11 , B60C11/1204 , B60C11/1236 , B60C11/124 , B60C11/1259 , B60C11/1263 , B60C11/1272 , B60C11/1307 , B60C2011/0313 , B60C2011/0334 , B60C2011/0369 , B60C2011/1213
摘要： By forming a ground contact edge side of lug grooves (16) such that the groove depth becomes shallower in groove depth from the tire equatorial plane side toward the ground contact edge, and by setting an average angle of inclination (θ1) formed between a tread face (12A) and a groove bottom (16B) to be not more than 5°, water expulsion is performed smoothly in the vicinity of the ground contact edge while securing the rigidity of land portions in the vicinity of the ground contact edge. This enables a high degree of both wet performance and dry performance to be achieved.
摘要翻译：通过形成花纹槽（16）的接地端边缘侧，使得槽深度从轮胎赤道面侧朝向接地端的槽深度变浅，并且通过设定胎面花纹的平均倾斜角度（θ1）（12A）和槽底（16B）之间的距离不大于5°，在确保接地边缘附近的陆部的刚性的同时，在接地边缘附近平稳地进行排水。这使得可以实现高度的湿性能和干性能。

4. 发明公开

EP2913205A1 PNEUMATIC TIRE 失效
标题翻译：充气轮胎
公开(公告)号：EP2913205A1
公开(公告)日：2015-09-02
申请号：EP13849621.1
申请日：2013-10-23
申请人： Bridgestone Corporation
发明人： KAJI, Yoshio , KATAYAMA, Shinsaku , SETA, Eisuke , KURATA, Takayuki
IPC分类号： B60C11/12
CPC分类号： B60C11/1218 , B60C11/124 , B60C11/1259 , B60C2011/1213
摘要： A pneumatic tire, having a plurality of sipes formed in land portions of a tread thereof so as to each extend in the tire width direction, characterized in that: in a cross section of the land portion orthogonal to the sipe extending direction, provided that an imaginary sipe main line links two ends in the tire radial direction of each sipe, at least two of the sipes are "inclined sipes" each having the sipe main line inclined with respect to the tire radial direction; each inclined sipe has inner bent portions each protruding with respect to the sipe main line with peaks positioned deeper than 20% of the sipe depth; and the sipe main line(s) of at least one of the inclined sipes are inclined in a direction opposite, with respect to the tire radial direction, to the sipe main line of any of the other inclined sipes.
摘要翻译： 1。一种充气轮胎，其特征在于，在胎肩部的与刀槽花纹延伸方向正交的剖面上，在轮胎宽度方向的胎面陆部形成有多条刀槽花纹，假想的刀槽花纹的主线连结各刀槽花纹的轮胎径向的两端，至少两条刀槽花纹是刀槽花纹的主线相对于轮胎径向倾斜的“倾斜刀槽花纹” 每个倾斜刀槽花纹具有内弯曲部分，每个内弯曲部分相对于刀槽花纹干线突出，并且峰值位于比刀槽花纹深度的20％更深; 并且至少一个所述倾斜刀槽花纹的所述刀槽花纹主干线相对于所述轮胎径向相对于所述其他倾斜刀槽花纹中的任一个的刀槽花纹主干线向相反方向倾斜。

5. 发明公开

EP2226204A1 PNEUMATIC TIRE FOR MOTOR-BICYCLE 有权
标题翻译： LUFTREIFENFÜREIN MOTORRAD
公开(公告)号：EP2226204A1
公开(公告)日：2010-09-08
申请号：EP08851027.6
申请日：2008-11-13
申请人： Bridgestone Corporation
发明人： KATAYAMA, Shinsaku , ISHIYAMA, Makoto
IPC分类号： B60C9/18 , B60C9/20 , B60C9/22
CPC分类号： B60C9/2204 , B60C9/2009 , B60C9/28 , B60C2009/2295 , B60C2200/10 , Y10T152/10765 , Y10T152/1081
摘要： A pneumatic tire for motorcycles is provided which can improve traction performance especially during sharp cornering by largely leaning a vehicle, and stability during leaning of a vehicle without diminishing other performances. A pneumatic tire for motorcycles having a tread portion 11 formed in a circular shape, the tread portion 11 having a crown portion which has a spiral belt layer 3 in its inside in the radial direction of the tire, the spiral belt layer having an angle of 0 to 5° with respect to the circumferential direction of the tire and an arrangement width 0.5 to 0.8 times as large as the tread width, wherein the spiral belt layer 3 is split into three in the transverse direction and the tensile elastic modulus of the cord constituting the region at the both edges of said spiral belt layer 3 split into three is lower than that of the cord constituting the central region.
摘要翻译：提供一种用于摩托车的充气轮胎，其特别是在急剧转弯期间，通过大量倾斜车辆以及在车辆倾斜期间的稳定性而不会降低其他性能，可以提高牵引性能。一种用于摩托车的充气轮胎，其具有形成为圆形的胎面部分11，胎面部分11具有冠状部分，胎冠部分在轮胎的径向方向上在其内部具有螺旋带束层3，螺旋带束层具有相对于轮胎的周向为0〜5°，宽度为胎面宽度的0.5〜0.8倍的布置宽度，其中，螺旋带束层3沿横向分为三个，帘线的拉伸弹性模量构成分割成三个的螺旋带束层3的两个边缘处的区域低于构成中心区域的帘线的区域。

6. 发明授权

EP2722198B1 PNEUMATIC TIRE 有权
公开(公告)号：EP2722198B1
公开(公告)日：2018-07-04
申请号：EP12803157.2
申请日：2012-05-17
申请人： Bridgestone Corporation
发明人： KATAYAMA, Shinsaku
IPC分类号： B60C9/18 , B60C9/02 , B60C11/00 , B60C9/28 , B60C3/04
CPC分类号： B60C3/04 , B60C9/0292 , B60C9/28 , B60C11/0083 , B60C15/0036 , B60C2009/283 , B60C2011/0033 , B60C2015/009 , Y02T10/862
摘要： Provided is a pneumatic tire having at least one carcass layer as a skeleton extending in toroidal shape over a pair of bead portions, at least one belt layer and a tread disposed on an outer side in the radial direction of a crown portion of the carcass. In a tire section in the widthwise direction in state where the tire is assembled to an application rim, ratio BD/BW of radius difference BD between radius at a center portion and radius at an end portion in the widthwise direction of an innermost layer of the belt layer, to width BW of the innermost layer, ranges from 0.01 to 0.04, and ratio TD/TW of radius difference TD between radius at a center portion and radius at an end portion of the tread in the widthwise direction of a tread ground surface, to tread ground-contact width TW, satisfies BD/BW

7. 发明公开

EP2927025A1 PNEUMATIC TIRE 有权
标题翻译：充气轮胎
公开(公告)号：EP2927025A1
公开(公告)日：2015-10-07
申请号：EP13858626.8
申请日：2013-11-28
申请人： Bridgestone Corporation
发明人： KATAYAMA, Shinsaku , SETA, Eisuke , KAJI, Yoshio , KOIDE, Masafumi , KURATA, Takayuki , KATSUNO, Hiroyuki , AMANO, Masakazu , TAKEI, Ataka
IPC分类号： B60C11/11 , B60C11/04 , B60C11/113 , B60C11/12 , B60C11/13
CPC分类号： B60C11/0311 , B60C5/00 , B60C11/0302 , B60C11/0306 , B60C11/033 , B60C11/0332 , B60C11/1236 , B60C11/1263 , B60C11/1369 , B60C2011/0313 , B60C2011/0341 , B60C2011/0344 , B60C2011/0369 , B60C2011/0374 , B60C2011/1209
摘要： A pneumatic tire (10), which has, in the surface of the tread (11), lug grooves (15) on one side extending from one axial edge towards the axial center of the tire in such a manner as to intersect with the circumferential direction of the tire and lug grooves (15) on the other side extending in a symmetrically opposite direction from the axial center towards the other axial edge of the tire, has at least one circumferential groove (12) extending circumferentially around the tire. Also, circumferential grooves (12, 13a, 13b) are so formed as to satisfy a relationship of "1 ≦ (S/L) ≦ 3" where L is the axial length of the central region, which is the region enclosed by two straight parallel lines each passing through the center between the contact width center (CL) and the contact edge with the shoulder regions being the regions axially outside of the parallel lines, and S is the total of the groove areas of the circumferential grooves (12, 13a, 13b) disposed in the central region. Therefore, the pneumatic tire (10) not only secures the steering stability performance on wet road surfaces, but also improves the steering stability and wear resistance performance on dry road surfaces.
摘要翻译：一种充气轮胎（10），其在胎面（11）的表面具有一侧的花纹槽（15），该花纹槽从一个轴向边缘向轮胎的轴向中心延伸，以便与轮胎轮胎的方向和在另一侧上从轮胎的轴向中心朝向另一轴向边缘在对称相反方向上延伸的横向花纹沟（15）具有围绕轮胎沿周向延伸的至少一个周向沟槽（12）。此外，圆周槽（12,13a，13b）形成为满足“1≤（S / L）≤3”的关系，其中L是中央区域的轴向长度，该中央区域是由两个直线每个平行线穿过接触宽度中心（CL）和接触边缘之间的中心，肩部区域是平行线轴向外侧的区域，S是圆周凹槽（12,13a）的凹槽面积的总和，13b）设置在中央区域中。因此，充气轮胎（10）不仅确保湿路面上的操纵稳定性能，而且还提高干路面上的操纵稳定性和耐磨性能。

8. 发明公开

EP2487050A1 PNEUMATIC TIRE 失效
标题翻译：充气轮胎
公开(公告)号：EP2487050A1
公开(公告)日：2012-08-15
申请号：EP10821718.3
申请日：2010-09-30
申请人： Bridgestone Corporation
发明人： KATAYAMA, Shinsaku
IPC分类号： B60C13/00 , B60C9/08 , B60C9/18
CPC分类号： B60C9/28 , B60C3/04 , B60C15/0036 , B60C2009/283 , B60C2015/009 , Y10T152/10765 , Y10T152/10864
摘要： There is provided a pneumatic tire having excellent uneven wear resistance performance, low rolling resistance and durability of side portion's appearance. The pneumatic tire comprises a carcass as a framework consisting of at least one carcass ply troidally extending between bead portions embedded with a pair of bead cores and turned around the bead cores from an inner side to an outer side in a tire width direction, a belt comprising at least one inclined belt layer and a tread successively disposed on a radially outer side of a crown portion of the carcass, wherein a ratio BD/BW is in a range between 0.01 and 0.04 in a section of the tire in the width direction in a state where the tire is mounted on an application rim, where BD is radius difference between radius at a central portion and radius at an end portion in the tire width direction of the outermost layer of the inclined belt layer and BW is a width of the outermost layer and CSEh is larger than SWh, where CSEh is a shortest distance from an end of a turn-up portion of the at least one carcass ply to a line drawn in parallel with a tire rotation axis at a bead toe and SWh is a shortest distance between a line drawn in parallel with the tire rotation axis at a maximum width position of the tire and the line drawn in parallel with the tire rotation axis at the bead toe.
摘要翻译：提供具有优异的耐偏磨性能，低滚动阻力和侧部外观耐久性的充气轮胎。该充气轮胎包括作为框架的胎体，所述胎体由至少一个胎体帘布层构成，所述至少一个胎体帘布层在嵌入一对胎圈芯的胎圈部之间环绕地延伸并且从胎侧芯沿轮胎宽度方向从内侧向外侧转动，包括至少一个倾斜带束层和连续设置在胎体的冠部的径向外侧上的胎面，其中轮胎的宽度方向上的截面中的比率BD / BW在0.01和0.04之间的范围内轮胎安装在涂敷轮辋上的状态，其中BD是倾斜带束层的最外层的中心部处的半径与轮胎宽度方向上的端部处的半径之间的半径差，并且BW是最外层和CSEh大于SWh，其中CSEh是从所述至少一个胎体帘布层的翻卷部分的端部到在胎趾上与轮胎旋转轴线平行画出的线的最短距离，并且SWh是在轮胎的最大宽度位置处与轮胎旋转轴线平行地画出的线与在胎趾处与轮胎旋转轴线平行地画出的线之间的最短距离。

9. 发明公开

EP2363305A1 PNEUMATIC TIRE FOR TWO-WHEELED MOTOR VEHICLE 失效
标题翻译：气力发电机组
公开(公告)号：EP2363305A1
公开(公告)日：2011-09-07
申请号：EP09827384.0
申请日：2009-11-20
申请人： Bridgestone Corporation
发明人： KATAYAMA, Shinsaku
IPC分类号： B60C11/00 , B60C9/18 , B60C9/22
CPC分类号： B60C9/2204 , B60C2200/10
摘要： A pneumatic tire for motorcycles is provided which can improve the traction performance especially during sharp cornering by largely leaning a vehicle (motorbike) followed by acceleration, and the stability during leaning of a vehicle in addition to enhancing the steering stability at high speed.
A pneumatic tire for motorcycles having a tread portion 11 formed in a circular shape, the tread portion 11 having a crown portion which has a spiral belt layer 3 in its inside in the radial direction of the tire, the spiral belt layer having an angle of 0 to 5° with respect to the circumferential direction of the tire and an arrangement width 0.5 to 0.8 times as large as the tread width, wherein the spiral belt layer is arranged in such a manner that the center of the transverse direction of the spiral belt layer coincides with the tire equator and the curvature radius (R1) from the end portion of the spiral belt layer to the end portion of the tread portion is larger than the curvature radius (R2) from the end portion of the spiral belt layer to the tire equatorial plane.
摘要翻译：提供了一种用于摩托车的充气轮胎，其特别是在急剧转弯期间，通过大幅度倾斜车辆（摩托车），随后加速，以及车辆倾斜期间的稳定性以及高速提高操纵稳定性，可以提高牵引性能。一种用于摩托车的充气轮胎，其具有形成为圆形的胎面部分11，胎面部分11具有冠状部分，胎冠部分在轮胎的径向方向上在其内部具有螺旋带束层3，螺旋带束层具有相对于轮胎的圆周方向为0〜5°，胎面宽度为0.5〜0.8倍的布置宽度，螺旋带层以螺旋带的横向中心层与轮胎赤道重合，从螺旋带束层的端部到胎面部的端部的曲率半径（R1）大于从螺旋带束层的端部到轮胎赤道飞机。

10. 发明公开

EP1950059A1 PNEUMATIC TIRE FOR TWO-WHEELED VEHICLE 有权
标题翻译： LUFTREIFENFÜRZWEIRÄDRIGESFAHRZEUG
公开(公告)号：EP1950059A1
公开(公告)日：2008-07-30
申请号：EP06823293.3
申请日：2006-11-10
申请人： Bridgestone Corporation
发明人： KATAYAMA, Shinsaku , ISHIYAMA, Makoto , KOIDE, Masafumi , KAWAI, Takashi
IPC分类号： B60C11/00 , B60C9/22
CPC分类号： B60C9/2204 , B60C11/00 , B60C11/0058 , B60C2011/0025 , B60C2200/10
摘要： A pneumatic tire for two-wheeled vehicles that has excellent steering stability during high-speed traveling while having excellent steering stability performance during turning, in which the vehicle body is significantly tilted, with improved grip performance during turning.
The pneumatic tire for two-wheeled vehicles includes a spiral belt layer (22) and a plurality of tread rubbers constituting a tread (28). When a region occupying 15 to 35% in the center of a stretched tread width, which is obtained by stretching the tread (28) with respect to a tire equatorial plane as the center, is defined as a tread central section; the remaining regions at both ends are defined as tread side sections; regions in the respective tread side sections each occupying 4 to 13% from the corresponding tread end toward the center of the stretched tread width are defined as side-section shoulder-end regions; and the remaining regions of the respective tread side sections are defined as side-section near-center regions, a modulus M1 of the tread rubbers (30A) for the side-section shoulder-end regions at 100% elongation is smaller than a modulus M2 of the tread rubbers (30B) for the side-section near-center regions at 100% elongation, at least at a tread surface.
摘要翻译：一种用于两轮车辆的充气轮胎，其在高速行驶期间具有优异的操纵稳定性，同时在转弯期间具有优良的转向稳定性能，其中车体显着倾斜，并且在转弯期间具有改进的抓地性能。用于两轮车辆的充气轮胎包括构成胎面（28）的螺旋带束层（22）和多个胎面橡胶。当以轮胎赤道平面为中心将胎面（28）拉伸而获得的拉伸胎面宽度中心的区域占据15〜35％的区域被定义为胎面中心区段; 两端的其余区域被定义为胎面侧段; 在相应的胎面侧部分中，相应的胎面端部朝向拉伸的胎面宽度的中心占据4至13％的区域被定义为侧部肩端部区域; 并且各个胎面侧部分的其余区域被定义为侧面近中心区域，在100％伸长率下的侧部胎肩端部区域的胎面橡胶（30A）的模量M1小于模量M2 的胎面橡胶（30B），用于至少在胎面表面处的100％伸长率的侧部近中心区域。

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