TUBELESS TYRE HAVING A SLITTED INNER-LINER, AND PROCESS FOR ITS MANUFACTURE

摘要

Tubeless tyre, adapted to be inflated with an inflation gas, comprising: a crown (25) comprising a crown reinforcement (80, 90) surmounted by a tread (40); two sidewalls (30) extending the crown radially inwards; two beads (20) radially inside the sidewalls and each comprising a annular reinforcement structure (70); a carcass reinforcement (60) anchored in each of the beads; an inner-liner (50) impermeable to the inflation gas, covering the inner surface of the tyre; wherein, in each sidewall of the tyre, the inner-liner comprises at least one slit (200), situated radially between the annular reinforcement structure that is radially outermost, and the radius RE at which the carcass reinforcement, when the tyre is fitted to the rim and inflated to its operating pressure, has its largest axial width, the slit having a maximum radial height HR of between 0.5 and 5 mm and extending over at least half of the circumference of the tyre. Also disclosed is a process for manufacturing such a tyre.