Michelin Recherche Et Technique S.a.

Compagnie Generale Des Etablissements Michelin

Societe Detechnologie Michelin

Benoit Marie Foucher

Paul Andrew Mayni

Benjamin Quantinet

David Lee Pressley

Didier Michel Martin

Philippe Mansuy

Gilles Sallaz

Florent Delfosse

Alexis Bournat

Hervé Bechon

Preston Butler Kemp

Philippe Edmond-De-Boussiers

A tire having a carcass reinforcement surmounted radially by a crown reinforcement having at least two working plies, the width Lt of which is equal to the width of the axially narrowest working ply, and surmounted radially by a tread (or 'cap') and interposed radially between the cap and the crown reinforcement by a sublayer (or 'base'), this base extending axially and radially under all of the cap and radially on the outside of the crown reinforcement over a total width at least equal to the width Lt of the crown reinforcement, an equatorial plane dividing the cap axially into an outer half cap (TE) and an inner half cap (TI) of the same axial width, the outer half cap (TE) positioned axially towards the outside of a vehicle and the inner half cap (TI) positioned axially towards the inside of the vehicle, the base comprising an additional volume radially under the inner half cap (TI), such that the volume occupied by the base radially under the inner half cap (TI) is greater than the volume occupied by the base radially under the outer half cap (TE), and the material of the base is a rubber-based composition having hysteresis lower than the hysteresis of the rubber-based material of the cap.

Heavy truck tire for a trailer vehicle

Tire for heavy goods vehicle having a tread comprising a plurality of circumferential grooves delimiting intermediate ribs and two edge ribs each circumferential groove comprising a plurality of protuberances formed as a protrusion on at least one lateral wall delimiting this groove, wherein:

Tread with reduced road noise

This invention relates generally to treads having a configuration and/or properties for improving or preventing irregular wear on the tread of a tire, and, more specifically, to a tire that has a tread with a gradient of properties that helps to prevent or improve irregular wear, especially suitable for tires that are free rolling such as steer or trailer tires used on trucks.

Tread having a gradient of properties for improving irregular wear

A tire tread comprising a rolling surface and at least one wear indicator formed by at least one cavity which opens onto the rolling surface, wherein the geometrical shape of the trace of the cavity on the rolling surface changes as a function of the wear level of the tread and wherein the geometrical shape of said trace is an analogical expression of the tread's wear level.

Wear indicator for a tire

Pneumatic tire

Growing community of inventors

Chamalieres, France

Benoit Marie Foucher