Abstract: A radial tire, notably for a passenger vehicle or van, has a very thin belt structure comprising a multilayer composite laminate of specific construction, with a first layer of rubber reinforced by circumferential textile reinforcers in the form of monofilaments or assemblies of monofilaments, preferably slightly heat-shrinkable, for example made of nylon or of polyester, this first layer radially (in the direction Z) surmounting two other layers of rubber, reinforced by high-strength steel monofilaments. The mean thickness of rubber, measured in the radial direction (Z), separating a first reinforcer from the second reinforcer which is closest to it, and that separating a second reinforcer from the third reinforcer which is closest to it, are both less than or at most equal to 0.35 mm.

Abstract: A radial tire comprises a multilayer composite laminate (10) comprising at least three superposed layers of reinforcers (110, 120, 130), the reinforcers being unidirectional within each layer and embedded in a thickness of rubber (C1, C2, C3, respectively), with a first layer of rubber (C1) comprising at least one row of heat-shrinkable circumferential textile reinforcers (110), for example made of nylon or polyester. The first layer radially (in the direction Z) surmounts two other layers (C2, C3) comprising metal reinforcers (120, 130) which are crossed from one layer to the next, in the form of steel monofilaments of a diameter between 0.20 mm and 0.50 mm. The reinforcers (110) made of heat-shrinkable textile material are tapes of thickness denoted “T” between 0.1 mm and 1 mm, and of thickness denoted “W” between 2 and 50 mm.

Abstract: A radial tire comprises a multilayer composite laminate (10) comprising at least three superposed layers of reinforcers (110, 120, 130), the reinforcers being unidirectional within each layer and embedded in a thickness of rubber (C1, C2, C3, respectively), with a first layer of rubber (C1) comprising at least one row of heat-shrinkable circumferential textile reinforcers (110), for example made of nylon or polyester. The first layer radially (in the direction Z) surmounts two other layers (C2, C3) comprising metal reinforcers (120, 130) which are crossed from one layer to the next, in the form of steel monofilaments of a diameter between 0.20 mm and 0.50 mm. The reinforcers (110) made of heat-shrinkable textile material are tapes of thickness denoted “T” between 0.1 mm and 1 mm, and of thickness denoted “W” between 2 and 50 mm.

Abstract: A radial tire with a lightened belt structure (10) comprises a multilayer composite laminate (10a, 10b, 10c) of specific construction, with a first layer (10a) of rubber (C1) reinforced with preferably weakly heat-shrinkable circumferential textile multifilament fibres (110) twisted individually on themselves with a torsion T greater than 100 turns per meter, for example, made of nylon or of polyester, this first layer radially (in the direction Z) surmounting two other layers (10b, 10c) of rubber (C2, C3, respectively) reinforced with monofilaments (120, 130) of high tensile steel. The first reinforcers have an envelope diameter between 0.30 mm and 0.60 mm and a density, measured in the axial direction Y, between 90 and 150 threads/dm, and the second and third reinforcers each have a diameter between 0.20 mm and 0.50 mm and a density, measured in the axial direction Y, between 100 and 180 threads/dm.

Abstract: A radial tire with a lightened belt structure (10) comprises a multilayer composite laminate (10a, 10b, 10c) of specific construction, with a first layer (10a) of rubber (C1) reinforced with preferably weakly heat-shrinkable circumferential textile monofilaments (110) with a diameter greater than 0.10 mm or assemblies of such monofilaments, for example, made of nylon or of polyester, this first layer radially (in the direction Z) surmounting two other layers (10b, 10c) of rubber (C2, C3, respectively) reinforced with monofilaments (120, 130) of high tensile steel. The first reinforcers have an envelope diameter between 0.20 mm and 1.20 mm and a density, measured in the axial direction Y, between 70 and 130 threads/dm, and the second and third reinforcers each have a diameter between 0.20 mm and 0.50 mm and a density, measured in the axial direction Y, between 100 and 180 threads/dm.

Abstract: A radial tire, notably for a passenger vehicle or van, has an improved belt structure comprising a multilayer composite laminate with a first layer of rubber comprising heat-shrinkable circumferential textile reinforcers, preferably in the form of monofilaments or assemblies of monofilaments; this first layer radially (in the direction Z) surmounts two other layers of rubber, reinforced by reinforcers all or some of which are composite reinforcers made up of steel monofilaments sheathed with a thermoplastic material, the glass transition temperature of which is greater than 20° C. This laminate makes it possible to lighten the belts of tyres by reducing the thickness of the layers of rubber that make up part of their structure, and therefore to reduce the weight and rolling resistance of the tyres, without the risk of direct contact between the reinforcers.

Abstract: A radial tire, notably for a passenger vehicle or van, has an improved belt structure comprising a multilayer composite laminate with a first layer of rubber comprising heat-shrinkable circumferential textile reinforcers, in the form of monofilament fibres twisted individually on themselves according to a twist greater than 100 turns per metre; this first layer radially (in the direction Z) surmounts two other layers of rubber, reinforced by reinforcers all or some of which are composite reinforcers made up of steel monofilaments sheathed with a thermoplastic material, the glass transition temperature of which is greater than 20° C. This laminate makes it possible to lighten the belts of tyres by reducing the thickness of the layers of rubber that make up part of their structure, and therefore to reduce the weight and rolling resistance of the tyres, without the risk of direct contact between the reinforcers.

Abstract: A radial tire, notably for a passenger vehicle or van, has a lightened belt structure comprising a multilayer composite laminate of specific construction, with a first layer of rubber reinforced by heat-shrinkable circumferential textile reinforcers in the form of monofilaments or assemblies of monofilaments, for example made of nylon or of polyester, this first layer radially (in the direction Z) surmounting two other layers of rubber, reinforced by small steel cords such as, for example, carbon steel cords of construction 1×2.

Abstract: A radial tire, notably for a passenger vehicle or van, has a very thin belt structure comprising a multilayer composite laminate of specific construction, with a first layer of rubber reinforced by circumferential textile reinforcers in the form of monofilaments or assemblies of monofilaments, preferably slightly heat-shrinkable, for example made of nylon or of polyester, this first layer radially (in the direction Z) surmounting two other layers of rubber, reinforced by high-strength steel monofilaments. The mean thickness of rubber, measured in the radial direction (Z), separating a first reinforcer from the second reinforcer which is closest to it, and that separating a second reinforcer from the third reinforcer which is closest to it, are both less than or at most equal to 0.35 mm.

Abstract: A radial tire, notably for a passenger vehicle or van, with a lightened belt structure (10) comprises a multilayer composite laminate (10a, 10b, 10c) of specific construction, with a first layer (10a) of rubber (C1) reinforced with preferably weakly heat-shrinkable circumferential textile monofilaments (110), for example, made of nylon or of polyester, this first layer radially (in the direction Z) surmounting two other layers (10b, 10c) of rubber (C2, C3, respectively) reinforced with monofilaments (120, 130) of high tensile steel. This multilayer composite laminate allows the weight and rolling resistance of the tires to be reduced without impairing the cornering stiffness and, therefore, road holding and handling, while at the same time offering equivalent running endurance.

Abstract: A radial tire, notably for a passenger vehicle or van, with a lightened belt structure (10) comprises a multilayer composite laminate (10a, 10b, 10c) of specific construction, with a first layer (10a) of rubber (C1) reinforced with preferably weakly heat-shrinkable circumferential textile multifilament fibres (110) twisted individually on themselves, for example, made of nylon or of polyester, this first layer radially (in the direction Z) surmounting two other layers (10b, 10c) of rubber (C2, C3, respectively) reinforced with monofilaments (120, 130) of high tensile steel. This multilayer composite laminate allows the weight and rolling resistance of the tires to be reduced without impairing the cornering stiffness and, therefore, road holding and handling, while at the same time offering equivalent running endurance.