Radial tyre top reinforcement

Details Radial tyre top reinforcement Radial tyre top reinforcement

B - Operations, Transporting

60

C

B60C 9/22 (2006.01) B60C 9/20 (2006.01)

Patent

CA 2294791

The invention concerns a tyre comprising a top, two sidewalls and two shoulders, a body reinforcement anchored between the two shoulders and a top reinforcement, said top reinforcement comprising radially from inside outwards, a working block with at least one ply of parallel and circumferentially oriented cords and a protective block with at least a ply of parallel cords with breaking elongation greater than that of the working block circumferentially oriented cords. The invention is characterised in that said ply with circumferentially oriented cords is said working block ply most externally arranged and the parallel cords of said protective block have a circumferential orientation.

Pneumatique comprenant un sommet, deux flancs et deux bourrelets, une armature de carcasse ancrée dans les deux bourrelets et une armature de sommet, ladite armature de sommet comprenant radialement de l'intérieur vers l'extérieur, un bloc de travail avec au moins une nappe de fils parallèles d'orientation circonférentielle et un bloc de protection avec au moins une nappe de fils parallèles d'allongement à la rupture supérieure à celui des fils de la nappe d'orientation circonférentielle du bloc de travail, caractérisé en ce que ladite nappe de fils parallèles d'orientation circonférentielle est la nappe dudit bloc de travail disposée radialement le plus à l'extérieur et en ce que les fils parallèles de ladite nappe dudit bloc de protection ont une orientation circonférentielle.

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