Support for a tire tread
AssigneeMichelin Recherche et Technique S.A.
InventorsPatrick Bernadot, Sebastian Drap, Michael Cogne
Life of this patent
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Abstract
A support for a tire tread band comprising an outer portion for contacting a tread and a base, wherein the base comprises a reinforcement framework having at least two plies of reinforcement elements. Each of the plies has mutually parallel reinforcement elements, and said elements are crossed from one ply to a next ply. The support further comprising a polymer material having a modulus greater than 30 MPa.
Claims11
A support for a tire tread band comprising a polymer material having a modulus greater than 30 MPa, an outer portion for contacting a tread and a base, wherein said base comprises;
- a grid comprising at least one layer of at least two plies of reinforcement elements, each of said plies having mutually parallel reinforcement elements, and said elements are crossed from one ply to a next ply and making angles α and β with a circumferential direction;
- wherein said reinforcement elements are separated from each other in each ply by a distance between elements greater than about 5 mm, measured perpendicularly to their common direction, so that voids are present between said elements in said grid, and said material fills said voids.
Dependencies are inferred from the claim text.