The invention relates to a tire (1) having a carcass reinforcement (2) topped by a crown reinforcement (3) which itself is topped by a tread (7), said tread being connected to two beads (6) via two sidewalls (4), each sidewall having an outer surface (40), at least one of said sidewalls comprising at least two circumferential projections (5a, 5b, 5c), each sidewall (4) comprising an equator point(E) situated on the outer surface of the sidewall and radially at the same position than the axially outermost point (20) of the carcass reinforcement (2) in a non-loaded configuration. Each circumferential projection (5a, 5b, 5c) is delimited by a radially upper wall (51), a radially lower wall (52) and a connecting wall (53) situated between the radially upper wall (51) and the radially lower wall (52). Each circumferential projection is characterized in that: the connecting wall (53) is substantially parallel to the carcass reinforcement when viewed axially relative to said connecting wall(53); the radially upper wall (51) has a substantially frustoconical shape; the height (H) of each circumferential projection (5a, 5b, 5c), which is measured according to a direction substantially perpendicular to the carcass reinforcement (2) from said outer surface (40), is more than at least 0.8 times the total thickness (T) of the sidewall measured at the equator (E) and 4 mm and is inferior to at most 1.6 times the total thickness (T) and 8 mm; in the meridian plane at the center of the contact region of the tire in a deployed configuration, the angle (alpha), which is formed by the radially exterior wall (51) with the radial direction, is larger than 95 degrees for the radially outermost projection (5a); the innermost radial position of the connecting wall (53) of the radially innermost projection (5c) is situated radially outside of the equator point (E).

    本发明涉及一种轮胎(1),所述轮胎(1)具有由胎冠增强件(3)覆盖的胎体增强件(2),所述胎冠增强件(3)本身由胎面(7)覆盖,所述胎面经由两个胎侧(4)连接至两个胎圈(6),每个胎侧(4)具有外表面(40),所述胎侧的至少一者包括至少两个周向突出部(5a、5b、5c),每个胎侧(4)包括位于胎侧的外表面上的赤道点(E),所述赤道点(E)沿径向处于与空载构造状态下的胎体增强件(2)的轴向最外点(20)相同的位置。每个周向突出部(5a、5b、5c)以径向上壁(51)、径向下壁(52)以及位于径向上壁(51)和径向下壁(52)之间的连接壁(53)为边界。每个周向突出部的特征在于:在沿轴向相对于所述连接壁(53)观察时所述连接壁(53)基本上平行于胎体增强件;所述径向上壁(51)具有基本上为截头圆锥形的形状;从所述外表面(40)沿基本上垂直于胎体增强件(2)的方向测量的每个周向突出部(5a、5b、5c)的高度(H)大于在赤道(E)处测量的胎侧的总厚度(T)的至少0.8倍且大于4mm,并且小于总厚度(T)的至多1.6倍且小于8mm;在展开构造状态下轮胎的接触区中央的子午平面中,径向最外突出部(5a)的由径向外壁(51)与径向方向形成的角度(α)大于95°;径向最内突出部(5c)的连接壁(53)的径向最内位置沿径向位于赤道点(E)的外侧。


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    Titel :

    TIRE, THE SIDEWALL OF WHICH COMPRISES RIBS


    Weitere Titelangaben:

    胎侧包括肋部的轮胎


    Beteiligte:
    LICENSE WILLIAM (Autor:in) / BABAUD JACQUES (Autor:in)

    Erscheinungsdatum :

    2020-07-17


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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