Crown reinforcement for a tire of a tractor-type agricultural vehicle
AssigneeCompagnie Generale Des Etablissements Michelin
InventorNicole Barrat
Life of this patent
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Abstract
A tire (1) for an agricultural vehicle comprises a working reinforcement (2), radially on the inside of a tread (3) and radially on the outside of a carcass reinforcement (4), the working reinforcement (2) comprising a multilayer component made up of a radial stack of at least two working layers (21, 22), and aims to improve the endurance thereof. The working reinforcement (2) is made up of a circumferential spiral winding of at least one turn of the multilayer component, the first and second circumferential ends (211, 221; 212, 222) of each working layer (21, 22) are circumferentially offset from one another, and the respective first circumferential ends (211, 221) of two consecutive working layers (21, 22) are likewise circumferentially offset from one another.
Claims13
A tire for an agricultural vehicle, the tire comprising:
- a tread;
- a carcass reinforcement;
- and
- a working reinforcement radially inside of the tread and radially outside of the carcass reinforcement, the working reinforcement comprising a multilayer component made up of a radial stack of at least two working layers, each working layer of the multilayer component extending circumferentially from a first circumferential end to a second circumferential end and being made up of reinforcers that (i) are coated in an elastomeric compound, (ii) are mutually parallel, and (iii) are oriented at an angle A relative to a circumferential direction tangential to the tread,
- wherein the working reinforcement is made up of a circumferential spiral winding of at least one turn of the multilayer component about the carcass reinforcement, the first and second circumferential ends of each working layer of the multilayer component being circumferentially offset from one another by an angle B,
- wherein the entirety of the respective first circumferential ends of two consecutive working layers of the multilayer component being circumferentially offset from one another by an angle C, and
- wherein the first and second circumferential ends of the set of working layers are regularly distributed circumferentially.
Dependencies are inferred from the claim text.