Described is a vehicle pneumatic tire having a tread (1) with a contour and having a central circumferential rib (3) delimited by two at least actually parallel side faces (4, 4 ') surrounding two circumferential grooves (2, 2') of the entire vehicle pneumatic tire, the circumferential grooves "extend at least approximately perpendicular to the axial direction A of the pneumatic vehicle tyre, as they deviate only by an angle [gamma] of less than 15 degrees from the radial direction of the plane perpendicular to the axial direction A, such that the width of the circumferential rib (3) remains constant or increases with increasing contour depth. The circumferential rib (3) has sipes (6) spaced apart at a regular distance d in the circumferential direction, which sipes extend along a profile (10) from one of the two parallel sides (4, 4 ') of the two circumferential grooves (2, 2') to the other. In each case a thin transverse groove (8) is present in the central circumferential rib (3) instead of the sipes (6) at three to seven times the length of a distance d spaced apart by the sipes (6) in the circumferential direction, the width BQ of the thin transverse groove being at least 2.5 times the width BF of the sipes (6) and the thin transverse groove having a profile (10) of the sipes (6). The depth TF of the sipes (6) decreases at least partially in the end regions of the sipes (6) over the length Lred of the profile (10) and over 80% to 250% of the length Lred of the profile (10), and the thin transverse grooves (8) have snow pockets (20) in the end regions thereof. The width Bs of the snow pockets (20) perpendicular to the profile (10) is at least 1.5 times the width BQ of the thin transverse groove (8) and the depth TS of the snow pockets is at most 65% of the contour depth TQ of the thin transverse groove (8).

    描述了一种具有胎面(1)的车辆充气轮胎,该胎面具有轮廓并且具有由环绕整个车辆充气轮胎的两个周向沟纹(2,2')的两个至少实际上平行的侧面(4,4')界定的中心周向肋(3),这些周向沟纹”至少近似地垂直于该车辆充气轮胎的轴向方向A延伸,因为它们与垂直于轴向方向A的平面的径向方向仅偏离小于15°的角度γ,因此使得该周向肋(3)的宽度保持恒定或随着轮廓深度的增加而增加。该周向肋(3)具有在周向方向上以规则的间距d间隔开的刀槽花纹(6),该刀槽花纹沿着形廓线(10)从这两个环绕的周向沟纹(2,2')的两个平行的侧面(4,4')中的一个侧面延伸到另一个侧面。在这些刀槽花纹(6)沿该周向方向间隔开的间距d的长度的三到七倍处,在各自情况下,在该中心周向肋(3)中存在细横向沟纹(8)代替刀槽花纹(6),该细横向沟纹的宽度BQ是刀槽花纹(6)的宽度BF的至少2.5倍并且该细横向沟纹具有这些刀槽花纹(6)的形廓线(10)。这些刀槽花纹(6)的深度TF在这些刀槽花纹(6)的端部区域中、在该形廓线(10)的长度Lred上并且在该形廓线(10)的所述长度Lred的80%至250%上至少部分地减小,这些细横向沟纹(8)在其端部区域中具有雪穴(20)。这些雪穴(20)的垂直于该形廓线(10)的宽度Bs是该细横向沟纹(8)的宽度BQ的至少1.5倍并且这些雪穴的深度TS是该细横向沟纹(8)的轮廓深度TQ的至多65%。


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    Titel :

    Pneumatic vehicle tire with central circumferential rib


    Weitere Titelangaben:

    具有中心周向肋的车辆充气轮胎


    Beteiligte:

    Erscheinungsdatum :

    2023-08-15


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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