B - Operations – Transporting – 60 – C
Patent
B - Operations, Transporting
60
C
152/87
B60C 9/00 (2006.01) B60C 9/18 (2006.01)
Patent
CA 1220124
ABSTRACT OF THE DISCLOSURE A tire with a crown comprising a strengthening reinforcement and at least one protective ply arranged above the strengthening reinforcement. The protective ply com- prises a three-dimensional fabric impregnated with rubber, the fabric having two principal faces, and comprises warp threads and woof threads, which undulate. When the general orientation of the fabric is flat, the principal faces of the fabric being then assumed flat, each warp thread undulates in a warp thread plane perpendicular to the principal faces of the fabric, each warp thread being alternately tangent to one of the principal faces of the fabric and then to the other. The woof threads are arranged between the warp threads in several woof thread planes in the thickness of the fabric, the woof thread planes being parallel to the principal faces of the fabric, each woof thread undulates in a woof thread plane. The warp threads and the woof threads are made with one or more materials whose rupture stress is less than 140 kg/mm2; and the porosity of the fabric before impregnation with rubber varies from 60% to 90%.
439492
Michelin & Cie (compagnie Generale Des Etablissements Michelin)
Robic Robic & Associes/associates
LandOfFree
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