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    • 24. 发明公开
    • BANDE DE ROULEMENT DIRECTIONNELLE POUR PNEU POURVUE D'INCISIONS ADAPTEES.
    • BANDE DE ROULEMENT DIRECTIONNELLE POUR PNEU POURVUE D'INCISIONS ADAPTEES。
    • EP2296917A1
    • 2011-03-23
    • EP09772497.5
    • 2009-07-02
    • Société de Technologie MICHELINMICHELIN Recherche et Technique S.A.
    • BERGER, EricFUGIER, SébastienBONNAMOUR, MatthieuAUDEBERT, Claude
    • B60C11/12
    • B60C11/12B60C11/1218B60C11/124B60C11/1281
    • The invention relates to a directional tire tread having a rolling surface (30), said tread being provided with a plurality of incisions (1) defined by walls (11, 12) located opposite each other, each of said walls leading into the rolling surface (30) to form an edge referred to as a leading edge (Aa) of a material element, corresponding to the edge making contact first, and an edge referred to as a trailing edge (Af) of the same material element, corresponding to the edge making contact after the leading edge, each incision (1) including at least one section (11, 101) defined by walls opposite each other making, with a direction perpendicular to the rolling surface passing through the intersection of the incision with the rolling surface, a mean negative angle α less than 55 degrees in absolute value, said tread being characterized in that said section (11, 101) of negative angle α leads into the rolling surface (30) through a widened end portion (2) defined by first and second surfaces (21, 22) facing opposite each other, the angles of the first surface (21) and second surface (22) being positive and not equal to each other.
    • 本发明涉及一种具有滚动表面(30)的定向轮胎胎面,所述胎面设有多个由彼此相对设置的壁(11,12)限定的切口(1),每个所述壁通向滚动表面 (30)以形成称为材料元件的前缘(Aa)的边缘,所述材料元件对应于首先接触的边缘和称为相同材料元件的后缘(Af)的边缘,对应于 在每个切口(1)包括由彼此相对的壁限定的至少一个区段(11,101),使得与滚动表面垂直的方向穿过切口与滚动表面的交点 ,其平均负角α的绝对值小于55度,所述胎面的特征在于,负角度α的所述部分(11,101)通过由第一限定的加宽端部(2)引入滚动表面(30) 和第二个sur (21,22)彼此相对,第一表面(21)和第二表面(22)的角度是正的并且彼此不相等。