Compagnie Generale Des Etablissements Michelin

Michelin Recherche Et Technique S.a.

Societe Detechnologie Michelin

Christian Beaudonnet

Henri Hinc

Francis Aubarede

Jean-Marie Dettorre

Michel Deboeuf

Alain Faugeras

Daniel Bresson

Philippe Bournerie

Thierry Orsat

Rémi Bruant

Rémi Braunt

A device, which converts a reinforcing strip from being flat to being undulating, includes a transporter that guides fingers along a closed circuit, with the fingers being able to bear against a first face of the strip; a support plate that rotates about a plate axis and that supports rollers having axes parallel to the plate axis, with the rollers being able to bear against a second face of the strip; and a synchronizer that synchronizes a rotation of the support plate and a forward motion of the transporter. The closed circuit has an intersecting portion at which the synchronizer allows the fingers and the rollers to move rotationally in a common plane perpendicular to the plate axis, with the fingers and the rollers being interposed at the intersecting portion so as to cause the strip to have undulating waves that extend in the common plane.

Device and method for producing tires

A crown reinforcement of a tyre includes at least one crown triangulation belt having a given width value (R). The belt essentially includes elementary widths each having a given width value (B). Each of the elementary widths has a flattened cross section and forms an angle (&#x3b1;) with a circumferential direction of the tyre, the angle (&#x3b1;) being between 10&#xb0; and 80&#xb0;. Adjacent elementary widths, which are positioned directly next to each other, are separated by a groove of a given width value (j) and are connected to each other by one or more weak bridges.

Tyre and method of manufacturing a tyre triangulation belt

Device for manufacturing the tread of a tire, said tread comprising a plurality of relief tread elements of height h whose radially outer surface is designed to be in contact with the ground when the tire is rolling on the road surface, comprising a rotary support suitable for supporting a base strip (MB) forming a receiving surface (S), an extrusion die () comprising a plurality of extrusion nozzles whose outlet channels are oriented radially approximately perpendicular to the receiving surface (S), at least two compound supply means, each feeding into one or more separate extrusion nozzles, and means for positioning and moving the extrusion die relative to the receiving surface (S).

Device and method for producing a tread

Growing community of inventors

Ravel, France

Christian Beaudonnet