Pneumatique pour véhicule de Génie Civil, comprenant une armature de sommet à renforts métalliques trancannée

摘要

The invention relates to a pneumatic tire for a civil engineering vehicle, the pneumatic tire includes a top frame with at least a part of extended metal strength, the top frame is compatible with high load use and aggressive soil.According to the invention, the top layer reinforcement (211212) is metallic, and is in the form of d ', d', d ', d', d ', d', d ', width W along the periodic curve along the zigzag circular path (7,7),S extends to N P cycles, distributed on t 2R circles, and satisfies n * ("W" / "Sina" = 2R * t, and 0.6 lt; = T lt; = 1 and N * P = 2R * t), forming a double layer (21). In addition, for at least 40% of the belt intersections (53), relative to the circumferential direction (XX),The axial distance L1 is at most 0.25 times L (.... 7) of the amplitude of the periodic curve LDouble circular partTaking the band crossing (53) as the center, the ray R1 is equal to twice of the bandwidth w (- 5),Including out band crossing and in band crossing, so \\ \\ \\ 124-124; / (+ NO + no lt; = 0.3).Abbreviations: Figure 1