Metal cord
AssigneeN. V. Bekaert S.A.
InventorLuc Bourgois
Life of this patent
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Abstract
A metal cord consisting of at least 15 filaments, comprising a core of 2 to 4 filaments twisted together, an intermediate layer wound on the core and in contact therewith and an outer layer of filaments wound on the intermediate layer and in contact therewith, wherein the intermediate and outer layers each have a free space of from 14 to 25%, preferably 20 to 24%.
Claims4
A metallic reinforcement cord for radial tires comprising at least 15 filaments, all made of the same material and having the same modulus of elasticity, the filaments being combined into a core of 2 to 4 filaments stranded together, an intermediate layer wound on said core and in contact therewith with a substantial contact pressure, and an outer layer of filaments wound on said intermediate layer and in contact therewith with a substantial contact pressure, wherein the intermediate and outer layer have a free space of from 14 to 25% allowing rubber penetration into the core during vulcanization.
Dependencies are inferred from the claim text.