Compagnie Generale Des Etablissements Michelin

Michelin Recherche Et Technique S.a.

Claudio Battocchio

John David Adamson

Martine Borot

Bernard Cubizolle

Philippe Laubry

Pete Proner

Brian B Hightower

Arnaud Boursin

S Todd Martin

A tire is described that includes a casing defining a cavity and equipped to receive an object, such as an electronic circuit, for example, through use of a two-part attachment, such as a touch-close attachment, of which a first part is fixed to a wall of the casing and a second part can be joined to the first part when placed in contact with the first part to keep the object on the casing in a service position. The first part of the attachment includes connection elements that are an integral part of the wall of the casing of the tire. The connection elements allow these two parts to have freedom to move relative to each other, thereby limiting the transmission of stresses, which affect the wall of the tire, to the object. The connection elements may be loops of flexible thread formed by the extremities of turns of a coiled thread integrated into the wall of the tire during the tire's manufacture.

Tyre equipped for attaching an object to the wall thereof and method for making same

An electronic assembly, which is intended for installation in a tire, includes an electronic device and a transition layer. The electronic device includes an electronic member and at least one antenna fixed to a support of the electronic member. Each antenna includes a free part, which is free with respect to the support, joined to a fixing part, which fixes the antenna to the support. The transition layer is formed of a composition that includes 9 to 13 parts of sulfur per hundred parts by weight of elastomer. The transition layer coats at least a junction between the free part and the fixing part of each antenna.

Electronic assembly for installation in a tyre

A member a support for a device includes a mass of rubber delimited by two substantially parallel opposite surfaces forming respectively a supporting surface and a surface for connection with a tire. The mass includes an opening arranged in the connecting surface delimiting a recess arranged in the mass, and the opening does not lead to outside of the connecting surface.

Member forming a support for a device, and tire and apparatus comprising such a member

An assembly of a tyre and a member fitted to the tyre respectively include complementary connecting portions. The connecting portion of the member is more flexible than that of the connecting portion of the tyre.

Tyre and flexible member assembly

Tyre equipped for attaching an object to a wall thereof

A tire is described that includes a casing designed to be inflated to a service pressure and equipped to accept a functional object, such as an electronic circuit, for example, by means of a two-part fastener, such as a touch-close fastener, for example. A first part of the fastener is attached to a wall of the casing, while the second part can be joined to the first part when placed in contact with the first part to attach and keep the object on the casing when the tire is in service. The first part of the fastener includes a thin backing fixed to the wall of the casing and possessing a structural elongation capacity greater than or equal to that of the wall to which the thin backing is fixed. The presence of the thin backing does not significantly hinder the elongation of the wall of the casing when subjected to the stresses encountered during use of the tire and, where relevant, during its manufacture. Connection elements between the first and second parts give these parts a certain looseness with respect to each other so that the object held by the second part of the fastener is not subjected to all or some of the stresses occurring in the wall during operation.

Tyre equipped for attaching an object to the wall thereof and fastener therefor

A polyurethaneurea system that includes in some embodiments Parts A and B reaction components for a polyurethaneurea, wherein an exemplary embodiment provides a Part A that comprises between 55 and 75 wt. % of an oligomeric polyol, between 3 and 7 wt. % of an aromatic diamine chain extender, and between 0.1 and 1.5% of a reactivity catalyst; Part B includes between 1 and 15 wt. % of a short aromatic diisocyanate and between 5 and 35 wt. % of an aromatic diisocyanate prepolymer that is the reaction product of a short aromatic diisocyanate and a diol. The polyurethaneurea system may further comprise an elastomer-surface activator comprising a second short aromatic diisocyanate and a second aromatic diisocyanate prepolymer, wherein at least one of the second diisocyanates may be the same as at least one of the diisocyanates of Part B.

Growing community of inventors

Riom, France

Claudio Battocchio