Compagnie Generale Des Etablissements Michelin

Michelin Recherche Et Technique S.a.

Compagnie Generale Des Establissements Michelin

Clément Dubois

Frédéric Pialot

Christophe Bessac

Stéphane Ravat

Thierry Ducros

Michel Deboeuf

Patrick Marchal

Olivier Fuchs

Yvan Lafontaine

A first ply and then a second ply, which is superposed on the first ply, are produced on a hoop-type first support. The hoop-type first support has a first receiving surface, to form a laminate. The first and second plies forming the laminate are transferred onto an annular second receiving surface of a core so that the laminate is wrapped on the core until each ply is closed on itself and the laminate is thus closed on itself in a ring about the central axis of the core.

Method for manufacturing and transferring a multi-ply laminate, applicable to the manufacture of annular reinforcements for tires

Cutting device for cutting a reinforcing ply (N) formed of a set of portions of thread, of given length, coated in a rubber compound, laid parallel to one another and making a given theoretical angle (a) with the longitudinal direction of the ply, characterized in that it includes a first element able, without proceeding to cut the said ply (N), to estimate the actual angle of the threads with the longitudinal direction (XX') of the device and a second element able to cut the ply (N) at the actual angle (a+da) estimated by the first element.

Method and device for measuring the ply angle prior to cutting

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Clermont-Ferrand, France

Clément Dubois