The invention relates to a pneumatic vehicle tyre (1), in particular a utility vehicle tyre, comprising: a tread (2) having a circumferential groove (3); and a carcass having a carcass ply having carcass ply threads (4) in a cross-section of the tire, the carcass ply threads extending through a center point of a reinforcement member of the carcass ply, the cross section is the cross section in the circumferential direction U which the tyre (1) will have in the new state when the tyre (1) is mounted without inflation pressure on a standard wheel rim which conforms to E.T.R.T.O. The purpose of the present invention is to improve fatigue resistance of circumferential grooves. This is achieved by a first distance d of at least 0.7 mm from a point R of the carcass ply thread (4) defined by a vertical projection of the center (7) of the circumferential groove (3) onto the carcass ply thread (4), and a straight line (6) connecting two points A and B of the carcass ply thread, the center (7) of the circumferential groove is determined in a lateral surface (8) applied radially from the outside to the tread surface, where the first spacing d is measured perpendicular to the straight line (6) and where the point R is arranged radially outside of the straight line (6), and where the point R is located radially outside of the straight line (6). The point R is arranged centrally between the point A and the point B when measured along the carcass ply line (4), and a second pitch D from each of the two points A and B is equal, where the second pitch D is 1.0 to 2.0 times the width (9) of the circumferential groove (3) measured along the lateral surface (8).

    本发明涉及一种车辆充气轮胎(1)、特别是多用途车辆轮胎,该车辆充气轮胎具有:胎面(2),该胎面具有周向沟纹(3);以及胎体,该胎体具有胎体帘布层,该胎体帘布层在轮胎的截面中具有胎体帘布层线(4),该胎体帘布层线延伸穿过胎体帘布层的加强构件的中心点,其中,所述截面是在轮胎(1)无充气压力地安装在符合E.T.R.T.O.的标准车轮轮辋上的情况下该轮胎在新状态下将会具有的在周向方向U上的截面。目的是改善周向沟纹的抗疲劳性。这通过以下得以实现:胎体帘布层线(4)的由周向沟纹(3)的中心(7)到胎体帘布层线(4)上的垂直投影限定的点R与连接胎体帘布层线的两个点A和B的直线(6)相距的第一间距d为至少0.7mm,其中,周向沟纹的中心(7)是在从外侧径向应用到胎面表面的侧向表面(8)中确定的,其中,第一间距d是垂直于直线(6)测量的并且其中,点R布置在直线(6)的径向外侧,并且其中,点R在沿着胎体帘布层线(4)测量时居中地布置在点A与点B之间、并且与两个点A和B中的每一个相距的第二间距D是相等的,其中,第二间距D是周向沟纹(3)沿着侧向表面(8)测量的宽度(9)的1.0倍至2.0倍。


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    Title :

    Pneumatic vehicle tire comprising carcass ply


    Additional title:

    包括胎体帘布层的车辆充气轮胎


    Contributors:

    Publication date :

    2024-02-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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