Michelin Recherche Et Technique S.a.

Compagnie Generale Des Etablissements Michelin

Michelin Recherche Et Techniques S.a.

Societe Detechnologie Michelin

Pascal Prost

Alain Valle

Christopher Careme

Luc Bestgen

Lionel Fagot-Revurat

David Dean

Jean-Marc Ruffenach

Olivier Muhlhoff

Bernard Guerinon

Gael Roty

Jacky Pineau

Hervé Ferigo

Francis Bordoz

Claude Orlowski

Yann Chaylard

Jośe Merino

Mattheiu Quadrini

José Merino

Tire () having a sub-layer () made up substantially of a base layer () disposed radially on the crown reinforcement () and axially between the median plane (CP) and a shoulder (), said base layer () being made up of a rubber compound of given stiffness A, a covering layer () disposed radially on the base layer () and radially on the inside of the tread () and axially at least in sections situated between the median plane (CP) and the shoulder end (), said covering layer () being made up of a rubber compound of given stiffness B, the stiffness A being less than the stiffness B, and the stiffness B being greater than the stiffness M.

Tire with a tread sub-layer containing multiple materials

A tire for a motor vehicle comprising: two beads (); two sidewalls () meeting at a crown (); at least one carcass reinforcement () extending from the beads () through the sidewalls () as far as the crown (), the carcass reinforcement () having a plurality of carcass reinforcing elements and anchored in the two beads () by a turn-up around the annular reinforcing structure (), so as to form in each bead a main strand () and a turn-up strand (); and a stiffening reinforcement () arranged in at least one sidewall of the tire, said stiffening reinforcement () having a radially inner end () and a radially outer end (), the stiffening reinforcement being formed of a plurality of stiffening elements oriented at an angle less than or equal to 10° relative to a circumferential direction of the tire.

Tire having a reinforced lower zone

A tire having an axis of rotation and a median plane (CP) perpendicular to the axis of rotation, and comprising: a crown reinforcement, a tread positioned radially on the outside of the crown reinforcement and axially between two shoulders, comprising a contact face intended to come into contact with the roadway while the tire is being driven on, wherein the tread is primarily made up of at least one rubber compound of given dynamic shear modulus M and comprises a plurality of furrows oriented substantially circumferentially, each furrow having a furrow bottom, and a sub-layer disposed radially on the outside of the crown reinforcement and radially on the inside of the tread, wherein the sub-layer is made up of at least one rubber compound of given dynamic shear modulus A is flush with each furrow bottom.

Tire having tread sub-layer flush with the groove bottom and reinforcing elements made of high modulus rubber integrated into the tread

Tire () having sidewalls (), a substantially electrically insulating crown block () and a substantially insulating tread (), the tire () also having at least one conductive peg () that is oriented in the radial direction and positioned under the tread () of the tire so as to create an electrically conductive path between the ground and a rim on which the tire is able to be mounted.

Tire comprising a conductive cord

A tire has a sub-layer () made up substantially of a first base layer () disposed radially on the crown reinforcement () and axially between the median plane (CP) and a transition edge (), the transition edge () being situated axially between the median plane (CP) and a shoulder (), said first base layer () being made up of a rubber compound of given stiffness A, a second base layer () disposed radially on the crown reinforcement () and axially between the transition edge () and a shoulder end (), said second base layer () being made up of a rubber compound of given stiffness B, a covering layer () disposed radially on the first base layer () and on the second base layer () and radially on the inside of the tread () and axially at least in sections situated between the median plane (CP) and the shoulder end (), said covering layer () being made up of a rubber compound of given stiffness C, the stiffness B being less than the stiffness A, which is less than the stiffness C, and the stiffness C being greater than the stiffness M.

A motorized two-wheeled vehicle, comprising a radial carcass reinforcement formed of at least two layers of reinforcing elements, and comprising underneath the tread a crown reinforcement structure comprising of at least one layer of reinforcing elements. At least the tread surface comprises a first polymeric compound extending in at least the region of the equatorial plane and at least one second polymeric compound having physicochemical properties different from those of said first polymeric compound, the density of reinforcing elements in the radially inner carcass reinforcement layer being less than that in the radially outer carcass reinforcement layer.

Tire for vehicle, comprising a tread comprising a plurality of compounds and a radial carcass reinforcement formed of at least two layers

A tire comprising a reinforcing structure of the carcass type and comprising under the tread strip a crown reinforcing structure consisting of at least two layers of reinforcing elements. The carcass-type reinforcing structure is produced in the form of two half-layers extending at least from the shoulders to the beads and each having an end under the tread strip, the crown reinforcing structure comprises at least one layer of circumferential reinforcing elements which are distributed in the transverse direction with a variable pitch and the pitch between the circumferential reinforcing elements is at a minimum in the region of the layer of circumferential reinforcing elements that radially face the ends of each of the half-layers of the carcass-type reinforcing structure.

Vehicle tire with interrupted carcass and comprising a layer of circumferential reinforcement elements

A tire comprising a reinforcing structure of the carcass type and comprising under the tread strip a crown reinforcing structure comprised of at least one layer of reinforcing elements. At least the surface of the tread strip comprises a first polymer compound extending at least into the region of the equatorial plane and at least one second polymer compound having physicochemical properties that differ from those of the first polymer compound, the crown reinforcing structure comprising at least one layer of circumferential reinforcing elements which are distributed in the transverse direction with a variable pitch and the pitch between the circumferential reinforcing elements being at a minimum in the region of the layer of circumferential reinforcing elements that radially face the ends of the first compound.

Vehicle tire comprising a tread composed of a plurality of compounds and a layer of circumferential reinforcement elements of variable pitch

A tire for a motorized two-wheeled vehicle, comprising a carcass-type reinforcing structure formed of at least two layers of reinforcing elements, and comprising underneath the tread a crown reinforcement structure comprising at least one layer of reinforcing elements. At least the tread surface comprises a first polymeric compound extending in at least the region of the equatorial plane and at least one second polymeric compound having physicochemical properties different from those of said first polymeric compound, the reinforcing elements of said two or more layers forming the carcass-type reinforcing structure forming angles with the circumferential direction of between 70&#xb0; and 85&#xb0; and the distance between the reinforcing elements of each of said two or more layers forming the carcass-type reinforcing structure being not more than 0.5 mm across at least 60% of the axial width of at least one region composed of the second polymeric compound.

Tire for vehicle, comprising a tread, comprising plurality of compounds and a carcass reinforcement formed of at least two layers

A ground-contacting component of a vehicle, consisting partly of polymeric compounds, in which at least one wireless temperature measurement systembased on surface acoustic wave or bulk acoustic wave technology is embedded in a region of a polymeric compound liable to reach temperatures above 100&#xb0; C. and/or to be influenced by a surrounding region of a polymeric compound liable to reach temperatures above 100&#xb0; C. during use of the vehicle. Also disclosed are a tireand the use of a wireless temperature measurement system based on acoustic surface wave or bulk acoustic wave technology.

Element for a vehicle contact with ground, tire and use of a measuring system

A tire for a two-wheeled motorcycle includes a continuous carcass-type reinforcement structure, having reinforcement elements and anchored on each side to a bead. Each bead extends radially by a sidewall, which meets up radially with a tread. Under the tread is a crown reinforcement structure including at least one working layer, and which does not comprise any circumferentially oriented reinforcement elements. Over the profile of the tire in a radial plane, in its part outside of the two points of tangency of the curvilinear abscissa of the carcass-type reinforcement structure with perpendiculars to the axis of rotation at least one layer of working reinforcement elements is at least partially radially to the inside of the part of the carcass-type reinforcement structure radially to the outside of the two points of tangency.

Vehicle tire

A tire for a two-wheeled motorized vehicle includes a carcass-type reinforcement structure, having reinforcement elements anchored on each side to a bead. Each bead extends radially by a sidewall, which meets up radially with a tread. Under the tread is a crown reinforcement structure including at least one working layer of working reinforcement elements, and a layer of circumferentially oriented reinforcement elements disposed radially to the outside of the carcass-type reinforcement structure. Over the profile of the tire in a radial plane, radially to the outside of the two points of tangency of the curvilinear abscissa of the carcass-type reinforcement structure with perpendiculars to the axis of rotation, at least one layer of working reinforcement elements is at least partially radially to the inside of the part of the carcass-type reinforcement structure radially to the outside of the two points of tangency.

Vehicle tire comprising looped crown reinforcement and circumferentially oriented crown reinforcement elements

A motorcycle tire includes at least one carcass-type reinforcement structure formed of reinforcement elements, anchored on either side of the tire to a bead whose base is intended to be mounted on a rim seat, each bead being extended radially towards the outside by a sidewall. The sidewalls meet up radially towards the outside with a tread. Under the tread there is a crown reinforcement structure including at least one layer of reinforcement elements known as a working layer which has at least one continuous reinforcement cord forming portions in the central zone thereof. Those central cord portions display identical angles of between 10-80 degrees formed with the longitudinal direction, the angles being measured at points of intersection of the cord with a circumferential plane. Two adjacent cord portions are linked by a U-shaped loop.

Tire for two-wheeled vehicle comprising looped crown reinforcement

A tire comprising at least one reinforcement structure of carcass type anchored on either side of the tire in a bead, the base of which is intended to be mounted on a rim seat, each bead being extended radially outward by a sidewall, the sidewalls extending radially towards outward to join a tread, the reinforcement structure extending circumferentially from the bead towards said sidewall, an anchoring zone for the reinforcement structure, said tire furthermore comprising an anti-vibration means arranged circumferentially in the junction zone of the shoulder and the sidewall.

Tire for two-wheeled vehicle comprising an anti-vibration means

A tire, the tread comprising rubber compounds and including a wear limit surface. At least one wireless temperature measurement system based on surface acoustic wave or bulk acoustic wave technology is embedded in a region of a rubber compound, said region being radially to the outside of a surface radially to the inside of the wear limit surface and the surface radially to the inside of the wear limit surface being, in the unworn state, at a distance from the outer surface of the tread of at most 95% of the thickness of the tread.

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Riom, France

Pascal Prost