Michelin Recherche Et Technique S.a.

Compagnie Generale Des Etablissements Michelin

Compagnie Generale Des Establissements Michelin

Compagnie Generale Des Etablissements

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Mathieu Vandaele

Houria Belarbi

Jonathan Lejeune

Stéphanie Cambon

Hélène Emorine

François Barbarin

Olivier Reix

Emmanuel Joulin

Sylvain Petitjean

Jacques Babaud

Alexis Bournat

Julien Metzeger

Eva Joannet

Lodoic De Kerret

Radial carcass tire for a civil engineering vehicle, having two bead wires () of radial height Ht, and carcass reinforcement made of two layers, the first () being radially innermost with a radial height Hdc, is anchored in each bead to form a main part () and a turn-up (). The second layer () is radially outside the first layer (). The free end (A) of the turn-up () is at a radial distance from the radially outermost point () of the bead wire that is at least equal to 1 and at most equal to 2 times Ht. From the end A of the turn-up () to the point B at 85% of the radial height Hdc, the distance between carcass layers is at least equal to 2 and at most equal to 11 times the diameter of metal reinforcers of first carcass layer ().

Optimized architecture of a civil engineering tire

Tire () comprising a carcass reinforcement () surmounted by a crown reinforcement (), itself capped by a tread (), the said tread being connected to two beads () via two sidewalls () each having an exterior surface (), at least one of the said sidewalls comprising at least two circumferential protrusions (), each sidewall () comprising an equator point (E) situated on the exterior surface of the sidewall radially at the same position as the axially outermost point () of the carcass reinforcement () in the unladen reference configuration, each circumferential protrusion () being bounded by a radially upper wall (), by a radially lower wall (), and by a connecting wall () situated between the radially upper wall () and the radially lower wall () tire.

Growing community of inventors

Clermont-Ferrand, France

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