Tire comprising cables for reinforcing the carcass having low perviousness, and textile threads associated with the carcass reinforcement
AssigneesCompagnie Generale Des Etablissements Michelin, Michelin Recherche et Technique S.A.
InventorsCharlotte Caffeau, Sebastien Noel, Bernard Jault
Life of this patent
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Abstract
A tire having a radial carcass reinforcement, composed of at least one layer of metal reinforcing elements, the said tire comprising a crown reinforcement, itself topped radially by a tread, the said tread being joined to two beads via two sidewalls. The metal reinforcing elements of at least one layer of the carcass reinforcement are cords exhibiting, in the “permeability” test, a flow rate of less than 20 cm3/min and at least one layer of the carcass reinforcement is provided, on at least one face, with textile threads exhibiting, in the “permeability” test, a flow rate of between 1 and 3 cm3/min.
Claims22
A tire comprising:
- a radial carcass reinforcement comprising at least one layer of metal reinforcing elements wherein the metal reinforcing elements of at least one layer of the radial carcass reinforcement are cords exhibiting, in a “permeability” test, a flow rate of less than 20 cm3/min, and wherein at least one layer of the radial carcass reinforcement is provided, on at least one face, with textile threads exhibiting, in the “permeability” test, a flow rate no less than 1 cm3/min and no greater than 3 cm3/min;
- a crown reinforcement;
- and
- a tread radially topping the crown reinforcement and joined to two beads via two sidewalls.
A tire comprising:
- a carcass reinforcement comprising at least one layer of metal reinforcing elements, wherein the metal reinforcing elements of at least one layer of the carcass reinforcement are cords comprising at least two layers, at least one inner layer being sheathed with a layer consisting of a polymeric composition, and wherein at least one layer of the carcass reinforcement is provided, on at least one face, with textile threads exhibiting, in a “permeability” test, a flow rate no less than 1 cm3/min and no greater than 3 cm3/min;
- a crown reinforcement;
- and
- a tread radially topping the crown reinforcement and joined to two beads via two sidewalls.
Dependencies are inferred from the claim text.