B - Operations – Transporting – 60 – C
Patent
B - Operations, Transporting
60
C
B60C 17/02 (2006.01)
Patent
CA 2397542
The invention concerns a doughnut-shaped membrane M used as means for supporting a running tread of a tyre P and forming with said tyre P and its mounting rim J an assembly capable of running when the tyre P is losing pressure, said membrane M being expansible, capable of filling the internal cavity of the tyre P, consisting of an impermeable inner layer (10), a crown reinforcement (14) of two cross-layed layers (141, 142), two carcass half-layers (111, 112) anchored in each bead B reinforced by a reinforcing ring (2) and a tread (17) reinforced by a lacing reinforcement (16), the crown reinforcement (14) being disengaged from the inner layer (10) and from the edges of the carcass half-layers (111, 112) which are on either side of an equatorial plane XX' assembled by at least a linking layer (15).
Membrane torique M, utilisée comme moyen de soutien de bande de roulement d'un pneumatique P et formant avec ledit pneumatique P et sa jante de montage J un ensemble pouvant rouler lorsque le pneumatique P est sujet à une perte de pression, ladite membrane M étant expansible, capable de remplir la cavité intérieure du pneumatique P, constituée d'une couche intérieure imperméable (10), d'une armature de sommet (14) de deux nappes croisées (141, 142), de deux demi-nappes de carcasse (111, 112) ancrées dans chaque bourrelet B renforcé par un anneau de renforcement (2) et d'une chape (17) renforcée par une armature de frettage (16), l'armature de sommet (14) étant désolidarisée de la couche intérieure (10) et des bords des demi-nappes de carcasse (111, 112) qui sont de part et d'autre du plan équatorial XX' réunis par au moins une nappe de liaison (15).
Michelin Recherche Et Technique S.a.
Robic
LandOfFree
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