Michelin Recherche Et Technique S.a.

Compagnie Générale Des Etablissements Michelin-Michelin & Cie

Compagnie G&eacute;n&eacute;rale Des Etablissements Michelin - Michelin & Cie

Pierre Chandezon

Olivier Muhlhoff

Jean-Jacques Drieux

Jean Billieres

Claude Eynard

A tire has a radial carcass reinforcement having a bead, the seat of which is inclined towards the outside, the bead heel axially to the inside and reinforced by at least one reinforcement element, the bead toe axially to the outside and having a profiled element of rubber mix in the form of a wedge defined by two sides, the mix having a Shore A hardness greater than the Shore A hardness of the rubber mixes radially above, wherein the reinforcement winds around the annular element to form an upturn, the end of which is located axially to the outside of a straight line P perpendicular to the axis of rotation and passing through the center of gravity of the meridian section of the element, and axially to the inside and radially to the outside of the straight line P supporting the radially outer side of the profiled element.

Tire having beads of improved structure

A tire having a radial carcass reinforcement of low H/S ratio, at least one bead provided with an axially outer protuberance, the maximum axial width of which is greater than the space taken up by the rim, characterized in that the protuberance is provided with incisions of a width other than zero, of a depth of at most 5 mm and arranged circumferentially parallel to each other.

Tire having a striated bead protuberance

Radial tire comprising a carcass ply with a notched lap weld

Growing community of inventors

Clermont-Ferrand, France

Pierre Chandezon