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    PNEUMATIC TIRE
    1.
    发明公开
    PNEUMATIC TIRE 有权
    LUFTREIFEN

    公开(公告)号：EP1752314A4

    公开(公告)日：2008-12-24

    申请号：EP05743297

    申请日：2005-05-27

    申请人： BRIDGESTONE CORP

    发明人： FUKUNAGA TAKAYUKI

    IPC分类号： B60C11/04 ,  B60C11/03 ,  B60C11/13

    CPC分类号： B60C11/1369 ,  B60C11/0302 ,  B60C11/0309 ,  B60C11/125 ,  B60C11/13 ,  B60C2011/0369 ,  B60C2011/0374 ,  Y10S152/03

    摘要： A pneumatic tire with grooves including lateral grooves, the tire having blocks with a directional pattern having a circumferential wide main groove (14) provided in the center region in the tire width direction of a tread (12), narrow circumferential auxiliary grooves (16, 18), and lateral grooves (20, 22, 24). In the area where the narrow circumferential auxiliary grooves partition the blocks, the width and depth of the narrow circumferential auxiliary grooves are reduced from the kick-out side toward the tread-in side of the blocks when the tire rolls with load. On one end side in the tire width direction of a lateral groove, there is formed a bottom raising section which raises the bottom of the lateral groove, and in the bottom raising section, an inclined surface is formed as a groove bottom surface where the depth of the groove is gradually reduced from the other end side in the tire width direction to the top of the bottom raising section. In traveling on a wet road surface, water between the tire and the road surface efficiently flows into each groove, and this provides high wet performance while a negative ratio is restricted from increasing. Therefore, sufficient tread surface area is secured to increase wear resistance.

    摘要翻译： 本发明提供一种具有包括横向槽的槽的充气轮胎，所述轮胎具有定向花纹块，所述花纹块具有设置在胎面（12）的轮胎宽度方向上的中央区域中的周向宽的主槽（14），狭窄的周向辅助槽 18）和横向槽（20,22,24）。 在狭窄的周向辅助槽划分块体的区域中，当轮胎负载滚动时，窄周向辅助槽的宽度和深度从块体的踢出侧朝向胎面接地侧减小。 在横槽的轮胎宽度方向的一端侧形成有用于使横槽的底部上升的底部抬高部，在底部抬高部中，作为槽底面形成有倾斜面， 的宽度从轮胎宽度方向的另一端侧逐渐减小到底部提升部分的顶部。 在湿路面上行驶时，轮胎和路面之间的水有效地流入每个凹槽，并且这提供了高湿性能，同时负比率受限制增加。 因此，确保足够的胎面表面积以增加耐磨性。

    PNEUMATIC TIRE
    2.
    发明公开
    PNEUMATIC TIRE 有权
    LUFTREIFEN

    公开(公告)号：EP1637357A4

    公开(公告)日：2008-01-23

    申请号：EP04745339

    申请日：2004-05-26

    申请人： BRIDGESTONE CORP

    发明人： FUKUNAGA TAKAYUKI

    IPC分类号： B60C11/01 ,  B60C11/04 ,  B60C11/03 ,  B60C11/13

    CPC分类号： B60C11/1384 ,  B60C11/0302 ,  B60C11/13 ,  B60C11/1315 ,  B60C11/1323

    摘要： A pneumatic tire allowing an increase in water-discharge property on a wet road surface and an increase in uneven abrasion property and steering stability on a dry road surface, wherein at least a pair of circumferential grooves (2) are disposed in a tread part (1) and an inner land part (3) is separated from an outer land part (4) by the arrangement of the outermost circumferential groove (2a) therein. A plurality of crossing grooves (5) are disposed at least in the outer land part (4) to divide the outer land part (4) into a plurality of blocks by the crossing grooves (5). The outermost circumferential groove (2a) extends aslant relative to the circumferential direction of the tire so that the width (w1) of a groove bottom (6) is narrower than an opening width (w2) and the groove bottom is substantially continued to the crossing grooves (5a) between the adjacent crossing groove (5a) and (5b), formed zigzag at the entire part of the groove bottom (6), and comprises chamfered parts (10) and (11), at both inner and outer groove walls (7) and (8), tilted at specified angles (theta1) and (theta2) from opening end edges (9a) and (9b) to the groove bottom (6) and having chamfered widths (c1) and (c2) gradually increasing in the circumferential directions thereof opposite to each other.

    摘要翻译： 1.一种充气轮胎，其特征在于，能够提高湿路面上的吐水性，并且能够提高干燥路面的不均匀磨损性和操纵稳定性，其特征在于，在胎面部设置有至少一对周向槽（2） 1），并且通过在其中布置最外圆周凹槽（2a），内陆地部分（3）与外陆地部分（4）分离。 多个交叉槽（5）至少设置在外陆部（4）中，以通过交叉槽（5）将外陆部（4）分成多个块。 最外周圆周槽（2a）相对于轮胎的圆周方向倾斜延伸，使得槽底（6）的宽度（w1）比开口宽度（w2）窄并且槽底基本上延续到交叉处 在凹槽底部（6）的整个部分形成之字形的相邻的交叉凹槽（5a）和（5b）之间的凹槽（5a），并且包括倒角部分（10）和（11） （9）和（9b）以预定角度（θ1）和（θ2）倾斜到槽底（6）并且具有逐渐增大的倒角宽度（c1）和（c2）的方式（7）和（8） 在其周向上彼此相反。

    PNEUMATIC TIRE
    4.
    发明公开
    PNEUMATIC TIRE 有权
    LUFTREIFEN

    公开(公告)号：EP1125769A4

    公开(公告)日：2002-05-22

    申请号：EP00948272

    申请日：2000-07-28

    申请人： BRIDGESTONE CORP

    发明人： MATSUZAKI JUN ,  ISHIYAMA MAKOTO ,  FUKUNAGA TAKAYUKI

    IPC分类号： B60C11/03 ,  B60C11/11 ,  B60C11/12 ,  B60C11/13

    CPC分类号： B60C11/11 ,  B60C11/0304 ,  B60C11/12 ,  B60C11/13 ,  B60C2011/1213 ,  B60C2011/1254 ,  Y10S152/03

    摘要： A pneumatic tire, wherein auxiliary grooves (28) are formed in a flat part (26) to increase the edge component of the auxiliary groove (28) and increase a wettability by the water absorption action of the auxiliary groove (28), and the auxiliary groove (28) is disposed on the shorter diagonal line of the flat part (26) to divide the flat part (26) into two triangles near equilateral triangles and suppress, as far as possible, the lowering of the rigidity of the flat part (26) caused by the provision of the auxiliary groove (28), whereby the deformation of the flat part (26) can be suppressed, and a dry performance can be assured.

    摘要翻译： 1.一种充气轮胎，其特征在于，在平坦部（26）上形成有辅助槽（28），通过辅助槽（28）的吸水作用来增大辅助槽（28）的边缘成分，提高润湿性， 辅助槽28设置在平坦部26的较短对角线上，以将平坦部26分成靠近正三角形的两个三角形，并尽可能地抑制平坦部26的刚性的降低。 （26），由此能够抑制平坦部（26）的变形，能够确保干燥性能。