Compagnie Generale Des Etablissements Michelin

Bastien Limozin

Richard Cornille

Sébastien Rigo

Florian Vilcot

Magaly Brousseau

Gregor Hug

Christophe Le Clerc

Damien Fombelle

Daniel Beaulaton

Jérémy Guillaumain

Alain Chevalier

Patrice Rousseau

A panel includes a first woven fabric, a second woven fabric, and a linking structure comprising stays linking the first woven fabric to the second woven fabric, each stay having an at-rest length that is substantially equal to the mean of the at-rest lengths of the stays, and the first woven fabric being plastically deformable in at least one of its main directions.

Conformable panel comprising two faces linked by a uniform connecting structure

An assembly () comprises: a first structure () formed by first filamentary elements (), a second structure () formed by second filamentary elements (), a supporting structure () comprising supporting filamentary elements linking the first filamentary elements () and the second filamentary elements (), and at least one filamentary securing element () interlaced with the first filamentary elements () and the second filamentary elements (), one of the ends () of the securing element () being free to slip relative to the first and second filamentary elements ().

Assembly for a tire comprising a three-dimensional fabric or knit and a securing element

An assembly () for a tire comprises a first structure (), a second structure () and bearing cord elements. The assembly comprises a gimped securing element () comprising a core () around which a gimp yarn () is wound. The core () exhibits an elongation at rupture Aand the gimp yarn () exhibits an elongation at rupture Asuch that: A<A=h/(E+e+e) and A>A=h/(E+e+e) in which h is the conformation height of the assembly, eis the thickness of the first structure (), eis the thickness of the second structure (), and E is the lock length.

Assembly for a tire, tire and associated manufacturing methods

A method for manufacturing (S) a subassembly () for a tire () comprising the following substeps: providing an assembly comprising a supporting structure () comprising supporting filamentary elements linking a first structure () of filamentary elements and a second structure () of filamentary elements, aligning (S) the first structure () and the second structure (), securely fixing (S) the first structure () onto the second structure () using a securing element (), and cutting (S) the assembly () along the securing element () so as to separate said securing element () from the rest of the assembly () and to obtain at least one subassembly () without securing element ().

Method for manufacturing a sub-assembly for a tire comprising a three-dimensional fabric or knitted material and using a securing element

The assembly () comprises: a woven first fabric () comprising filamentary warp elements () comprising first and second filamentary members, a woven second fabric (), a bearing structure () comprising filamentary bearing elements () connecting the woven first and second fabrics together. For a length at rest L of the woven first fabric (): for any elongation of the woven first fabric () less than or equal to (2&#x3c0;&#xd7;H)/L, the first filamentary member has a non-zero elongation and is not broken; there is an elongation of the woven first fabric (), less than or equal to (2&#x3c0;&#xd7;H)/L, and beyond which the second filamentary member is broken, in which H0&#xd7;K&#x2264;H where H0 is the distance between the woven first and second fabrics () when each filamentary bearing portion () is at rest, and K=

Assembly comprising a partially breakable fabric and a supporting structure

The assembly () comprises: a first structure () extending in a first overall direction (G), a second structure (), and a bearing structure () comprising filamentary bearing elements () comprising at least one filamentary bearing portion () extending between the first structure () and the second structure (), the first structure () being arranged such that, for a length at rest L of the first structure () in the first overall direction (G), the elongation at maximum force Art of the first structure in the first overall direction (G) satisfies: Art&#x2264;(2&#x3c0;&#xd7;H)/L, in which H&#xd7;K&#x2264;H where His the mean straight-line distance between an internal face () of the first structure () and an internal face () of the second structure () when each filamentary bearing portion () is at rest, and K=0.50.

Tire assembly comprising a breakable structure and a supporting structure

A tire assembly includes an assemblage formed of first and second impregnated woven or knitted structures, a bearing structure, and at least one sacrificial holder. The first impregnated woven or knitted structure includes a first woven or knitted fabric and a first layer of a first polymeric composition. The second impregnated woven or knitted structure includes a second woven or knitted fabric and a second layer of a second polymeric composition. The bearing structure includes bearing elements connecting the first and second woven or knitted fabrics together. Each sacrificial holder is structured to hold temporarily the first and second impregnated structures in contact with each other, connecting the first and second woven or knitted fabrics together. When the first and second impregnated woven or knitted structures are separated from each other, each sacrificial holder breaks before any breakage of the bearing elements.

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Clermont-Ferrand, France

Bastien Limozin