Tire with a reinforcing ply having peripheral members

Details Tire with a reinforcing ply having peripheral members Tire with a reinforcing ply having peripheral members

B - Operations, Transporting

60

C

B60C 9/20 (2006.01) B29C 70/08 (2006.01) B60C 9/18 (2006.01) B60C 9/22 (2006.01) B29C 33/68 (2006.01)

Patent

CA 2219142

A tire with one or more body plies, further having at least one additional reinforcing ply (1) with a maximum peripheral length L, at least formed of metal cable or wire sections (20) with lengths in the range of 0.1-0.5L, arranged substantially circumferentially, parallel to each other and forming rows which are mutually spaced, in a direction perpendicular to their orientation, by intervals (p, P), characterised in that a synthetic textile cable or strand (3) is present at least in every other interval and is continuous across the entire length of the rows. The invention is useful for a breaker ply for heavy duty vehicle-type tires, said ply (1) having peripheral members.

Pneumatique ayant au moins une armature de carcasse, comprenant en outre au moins une nappe de renforcement (1) supplémentaire, de longueur circonférentielle maximale L, composée au moins de tronçons (20) de fils ou câbles métalliques, de longueurs comprises entre 0,1 L et 0,5 L, disposés sensiblement circonférentiellement, parallèlement les uns aux autres et formant des rangées séparées les unes des autres, dans la direction perpendiculaire à leur orientation, par des intervalles (p, P), caractérisé en ce qu'un fil ou câble textile (3) en matière synthétique est présent dans au moins un intervalle sur deux, et continu sur toute la longueur des rangées. Application à une armature de sommet pour pneumatique de type "Poids-Lourds", la nappe (1) étant une nappe à éléments circonférentiels.

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