The present invention provides a heavy duty pneumatic tire having an flatness ratio of 65% or less, the heavy duty pneumatic tire having improved uneven wear resistance without sacrificing rolling resistance and wet performance. A heavy duty pneumatic tire having an flatness ratio of 65% or less includes a carcass (6) and a belt layer (7). The tread portion (2) includes a plurality of circumferential grooves (10). The circumferential grooves (10) include shoulder circumferential grooves (12) and crown circumferential grooves (11). The crown circumferential groove (11) is a narrow groove, and each of the pair of shoulder circumferential grooves (12) is a wide groove. The belt layer (7) includes a plurality of metal belt cords inclined with respect to the tire circumferential direction. The outer ends of the belt layer (7) are positioned further to the outside in the tire axial direction than the pair of shoulder circumferential grooves (12). The belt half width (W2) is 55%-85% of the carcass half width (W1).

    本发明提供重载荷用充气轮胎,在扁平率为65%以下的重载荷用充气轮胎中,在不牺牲滚动阻力、湿路性能的情况下提高耐偏磨损性能。扁平率为65%以下的重载荷用充气轮胎包含胎体(6)和带束层(7)。胎面部(2)包含多个周向槽(10)。周向槽(10)包含胎肩周向槽(12)和胎冠周向槽(11)。胎冠周向槽(11)是细槽,一对胎肩周向槽(12)分别是宽槽。带束层(7)包含多个相对于轮胎周向倾斜的金属制的带束帘线。带束层(7)的外端分别位于比一对胎肩周向槽(12)靠轮胎轴向外侧的位置。带束半宽(W2)是胎体半宽(W1)的55%~85%。


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    Titel :

    Heavy duty pneumatic tire


    Weitere Titelangaben:

    重载荷用充气轮胎


    Beteiligte:
    LI QINGMAO (Autor:in)

    Erscheinungsdatum :

    06.12.2022


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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