LIGHT TIRE COMPRISING A LAYER OF CIRCUMFERENTIAL REINFORCEMENT ELEMENTS

摘要

The invention relates to a tire comprising a crown reinforcement formed of at least two layers of working crown each formed of reinforcing elements inserted between two layers of calendering of a rubber mixture, and the crown reinforcement comprising at least one layer circumferential reinforcing elements. According to the invention, the reinforcing elements of the working layers are cables whose diameter is less than 1.1 mm, the cable distribution pitch being less than 2.1 mm, the stiffness of the cables being greater than 190 GPa and the layers calendering materials consisting of an elastomeric mixture, comprising mainly reinforcing filler at least one carbon black, having a BET specific surface at most equal to 30 m² / g and a COAN index at least equal to 60 ml / 100 g and the crosslinking density measured according to the equilibrium swelling method being between 13.10-5 mol / cm3 and 21.10-5 mol / cm3 in the calendering layers. Figure for the abstract: Fig 1