Hybrid cables with layers which can be used to reinforce tyres
AssigneeMichelin Recherche et Technique S.A.
InventorsHenri Barguet, Le Tu Anh Vo, Thibaud Pottier, Laurence Ducourant
Life of this patent
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Abstract
A hybrid layered cable for use in tire reinforcement includes a non-metallic internal layer and an unsaturated external layer including 3-12 strands. Each strand is at least partly metallic and is helically wound around the internal layer. Each strand includes at least 3 filaments wound helically together. The cable has a relative elongation at break, measured in tension in accordance with the standard ISO 6892 of 1984, which is higher than 7%.
Claims31
A hybrid layered cable comprising a non-metallic internal layer forming a core and an unsaturated external layer comprising strands, each strand being at least partly metallic and wound helically over the internal layer, wherein said cable, at break under traction, has a relative elongation which is higher than 7%, wherein the number of strands is from 3 to 12, each strand comprising at least three filaments wound helically at a pitch which is equal to or less than a winding pitch of the strand around the internal layer.
Dependencies are inferred from the claim text.