Compagnie Generale Des Etablissements Michelin

Michelin Recherche Et Technique S.a.

Societe Detechnologie Michelin

Compagnie Generale Des Etablissements

Michel Montarras

Yann Hye

David Mosnier

Fréderic Sarazin

Arnaud Frappart

Bertrand Fraenkel

Tire () comprising a directional tread () comprising a plurality of blocks () extending continuously along an overall curvature C from one of the edges () towards the centre () of said tread, all or some of the blocks () of the tread comprising a median sipe () of length S extending along a curvature C' substantially identical to the curvature C of the block, each block () comprising a central zone at an angle &#x3b2;1 such that 35&#xb0;&#x2264;&#x3b2;1&#x2264;65&#xb0;, an edge zone at an angle &#x3b2;3 such that 0&#xb0;&#x2264;&#x3b2;3&#x2264;10&#xb0;, and an intermediate zone between the central zone and the edge zone at an angle &#x3b2;2 allowing continuity between the three zones, at least some of the blocks () being designed with a block chamfer () provided at the trailing edge in the intermediate zone and/or the edge zone.

Tire with a directional tread comprising curved blocks with chamfers

Tire comprising a directional tread that has two edges and a center. The tread comprises a plurality of blocks, each block extending continuously along an overall curvature C from one of the edges towards the center of the tread, forming a block central end provided with a central wall. Each block has a width WB and a length LB, this width increasing from the block central end in the direction of the edge. All or some of the blocks of the tread include a median sipe of length S and extending from the block central end along a curvature C' substantially identical to the curvature C of the block.

Tire with a directional tread comprising curved blocks with incisions

Tire

Tire tread

Pneumatic tire

Growing community of inventors

Clermont-Ferrand, France

Michel Montarras