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AssigneesMichelin Recherche et Technique S.A., Compagnie Generale Des Etablissements Michelin
InventorsChristelle Chaulet, Richard Audigier, Chris Boyer
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A tire comprising a crown reinforcement which is itself capped radially with a tread, the crown reinforcement containing at least one layer of circumferential reinforcing elements distributed axially at a variable pitch. The layer of circumferential reinforcing elements comprising five parts, these being a central part, two intermediate parts and two axially exterior parts, the pitch in the central part being in the range between 1 and 1.5 times the pitch of the axially exterior parts and the pitch in an intermediate part being in the range between 1.6 and 2 times the pitch of the axially exterior parts.
A tire with a radial carcass reinforcement comprising a crown reinforcement formed of at least two working crown layers of inextensible reinforcing elements, crossed from one layer to the other making angles of between 10° and 45° with the circumferential direction, itself radially capped by a tread, the tread being connected to two beads via two sidewalls, the crown reinforcement comprising at least one layer of circumferential reinforcing elements distributed axially at a variable pitch, wherein the layer of circumferential reinforcing elements comprises five parts, these being a central part, two intermediate parts and two axially exterior parts, wherein the pitch in the central part is in the range between 1 and 1.5 times the pitch of the axially exterior parts and wherein the pitch in an intermediate part is in the range between 1.6 and 2 times the pitch of the axially exterior parts, wherein the axial width of the central part of the layer of circumferential reinforcing elements is in the range between 30 and 40% of the axial width of the layer of circumferential reinforcing elements.
A tire with a radial carcass reinforcement comprising a crown reinforcement formed of at least two working crown layers of inextensible reinforcing elements, crossed from one layer to the other making angles of between 10° and 45° with the circumferential direction, itself radially capped by a tread, the tread being connected to two beads via two sidewalls, the crown reinforcement comprising at least one layer of circumferential reinforcing elements distributed axially at a variable pitch, wherein the layer of circumferential reinforcing elements comprises five parts, these being a central part, two intermediate parts and two axially exterior parts, wherein the pitch in the central part is in the range between 1 and 1.5 times the pitch of the axially exterior parts and wherein the pitch in an intermediate part is in the range between 1.6 and 2 times the pitch of the axially exterior parts, wherein the layer of circumferential reinforcing elements is positioned radially between two working crown layers.
A tire with a radial carcass reinforcement comprising a crown reinforcement formed of at least two working crown layers of inextensible reinforcing elements, crossed from one layer to the other making angles of between 10° and 45° with the circumferential direction, itself radially capped by a tread, the tread being connected to two beads via two sidewalls, the crown reinforcement comprising at least one layer of circumferential reinforcing elements distributed axially at a variable pitch, wherein the layer of circumferential reinforcing elements comprises five parts, these being a central part, two intermediate parts and two axially exterior parts, wherein the pitch in the central part is in the range between 1 and 1.5 times the pitch of the axially exterior parts and wherein the pitch in an intermediate part is in the range between 1.6 and 2 times the pitch of the axially exterior parts, wherein the axial widths of the working crown layers radially adjacent to the layer of circumferential reinforcing elements are greater than the axial width of the said layer of circumferential reinforcing elements.
Dependencies are inferred from the claim text.