Compagnie Generale Des Etablissements Michelin

Frédéric Massis

Olivier Muhlhoff

Franck Nugier

Xavier Neau

Adrien Traverse

Damien Bardin

Romain Calvel

Olivier Spinnler

Etienne Blanchet

Pascal Goumault

Laurent Nadreau

Hélène Jaquet

Alexis Treilhes

Tire

A mold segment for forming a tire is provided that has a first sipe element with a protrusion that extends from a first sipe element side surface. The height of the protrusion is less than a height of the first sipe element side surface. A second sipe element is present and has a cavity that extends from a second sipe element side surface. The cavity has a height that is less than a height of the second sipe element side surface. A mold segment base is included that receives the first sipe element and the second sipe element. The cavity receives the protrusion such that the protrusion is located in the cavity and so that the first sipe element side surface directly faces the second sipe element side surface.

Mold segment with connected first and second sipe elements for use in forming a tire

An assembly () of moulding elements for moulding cuts in a tread of a tire comprises a first sipe blade (), a second sipe blade () and means for assembling the first sipe blade () with the second sipe blade (). The assembly means comprise at least one slot () in the thickness of the first sipe blade (), said first sipe blade () having no additional thickness at said slot () and a protuberance () in the continuation of the second sipe blade (), said protuberance () being able to be inserted into the slot (). This assembly system is both simple to produce and allows a multitude of configurations of the sipe blades relative to one another.

Assembly of molding elements

A set of molding elements suitable for being inserted into a mold for molding a tire comprises a main strip () and at least one secondary strip (), the secondary strip () comprising a first secondary strip portion () and a second secondary strip portion (), the second secondary strip portion () extending the first secondary strip portion and the first () and second () secondary strip portions extending on either side of the main strip () and the set of molding elements comprising members to assemble the secondary strip () with the main strip ().

Set of molding elements for tire mold

Growing community of inventors

Clermont-Ferrand, France

Frédéric Massis