Compagnie Generale Des Etablissements Michelin

Michelin Recherche Et Technique S.a.

Compagnie Generale Des Etablissments Michelin

Stéphane Barjon

Yann Palheire

Bruno Dussardier

Jean-Claude Delorme

David Bouchereau

Christian Beldent

Sarah Joandel

Michel Gayton

Francois Rouyet

Jean Mechin

The facility comprises a tire-building station that is configured to form an uncured tire on a core. A curing station is configured to cure the assembly formed by the core and the uncured tire so as to obtain a cured annular tire. An extraction station is configured to separate, after the curing operation, the cured tire from the core. The curing station has a first, heating, thermal source which presses against the exchange face of the core for the curing operation and is then dissociated from the core and remains in the curing station in order to leave the exchange face free again when the core and the cured tire are transferred to the extraction station so that a second, refrigerating, thermal source of the extraction station takes the place of the first thermal source in contact with the exchange face of the core so as to cool the core.

Facility and method for manufacturing an annular tire on a lightweight monolithic core

The method comprises steps during which, by making the cylindrical form rotate in a first circumferential direction, the ply is deposited until the front edge and performs a complete rotation. A point of penetration is marked on the ply on a cutting line, and a cutting blade that is driven in translation is made to penetrate between two wires placed on the cutting line at the point of penetration. The cylindrical form is made to rotate in an opposite second circumferential direction while displacing the cutting blade in a first transverse direction until the cutting blade is disposed at a predetermined and non-zero distance from a first selvedge. Without retracting the cutting blade from the wire gap, the cylindrical form is made to rotate in the first circumferential direction while displacing the cutting blade in an opposite second transverse direction until the cutting blade emerges at a second selvedge.

Method for placing a reinforcing ply on a large dimension drum

A device () for securing an electronic component to a wall of a tire comprises a base () that is able to be secured to the wall of a tire and a retaining wall (), connected to the base (). The interior surfaces () of these elements define a volume () able to accommodate the electronic member (). The base () has an opening () via which the electronic member is introduced so that when the base () is secured to the wall of the tire, the opening () is closed by the wall of the tire. The securing device () is such that the retaining wall () is able to be torn in order to form a fault that allows the electronic member to be extracted and inserted, and such that the retaining wall () has a retaining device () for a clamping system () for clamping the retaining wall ().

Device for securing an electronic member to a tire casing

A device () for securing an electronic member to a wall of a tire casing comprises a base () that is able to be secured to the wall () of a tire casing, a retaining wall (), connected to the base (), the interior surfaces () of which define a volume () able to accommodate the electronic member, and a clamping system () for clamping the retaining wall (), able to prevent any extraction of the electronic member. The securing device () is such that the retaining wall (), which is able to deform elastically, comprises an opening () that allows the electronic member to be extracted and inserted. The retaining wall () on its external surface () has a retaining device () for the clamping system (). Finally, the clamping system () is a single-use system.

Device for attaching an electronic member to a pneumatic tire

The process includes a non-crosslinked self-sealing composition which is introduced into an extrusion means, the geometric and thermodynamic characteristics of which have been specially adapted. The speed and temperature conditions of the extrusion means are adjusted so that, at an application nozzle forming the outlet die of the extrusion means, the self-sealing composition is crosslinked. The application nozzle is brought close to the internal surface of the casing previously set in relative motion with respect to the application nozzle, and an extruded and crosslinked bead that has a given width and profile is deposited directly on the internal surface of the casing.

Growing community of inventors

Clermont-Ferrand, France

Stéphane Barjon