Tire Comprising Carcass Reinforcement Cables Having Different Degrees of Permeability
AssigneesMichelin Recherche et Technique S.A., Compagnie Generale Des Etablissements Michelin
InventorAlain Domingo
Life of this patent
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Abstract
A tire having a radial carcass reinforcement, including at least one layer of reinforcing elements, said tire comprising a crown reinforcement, which is itself covered radially with a tread, said tread being joined to two beads via two sidewalls, wherein at least 85% of the reinforcing elements of at least one layer of the carcass reinforcement are non-wrapped metal cords having in what is called the permeability test a flow rate of less than 20 cm3/min, and in that at least 5% of the reinforcing elements of said at least one layer of the carcass reinforcement are cords comprising at least one strand consisting of textile multifilament yarns.
Claims19
A tire having a radial carcass reinforcement, including at least one layer of reinforcing elements, said tire comprising a crown reinforcement, which is itself covered radially with a tread, said tread being joined to two beads via two sidewalls, wherein at least 85% of the reinforcing elements of at least one layer of the carcass reinforcement are non-wrapped metal cords having in what is called the permeability test a flow rate of less than 20 cm3/min, and wherein at least 5% of the reinforcing elements of said at least one layer of the carcass reinforcement are cords comprising at least one strand consisting of textile multifilament yarns.
A tire having a radial carcass reinforcement including at least one layer of reinforcing elements, said tire comprising a crown reinforcement, which is itself covered radially with a tread, said tread being joined to two beads via two sidewalls, wherein at least 85% of the metal reinforcing elements of at least one layer of the carcass reinforcement are non-wrapped cords having at least two layers, at least one inner layer being sheathed with a layer including a polymeric composition such as a crosslinkable or crosslinked rubber composition, and wherein at least 5% of the reinforcing elements of said at least one layer of the carcass reinforcement are cords comprising at least one strand including textile multifilament yarns.
Dependencies are inferred from the claim text.