RADIAL CARCASES AND TREADMILLED REINFORCEMENT WITH AT LEAST TWO NON-FOLDED LAYERS WITH MERIDIAN WIDTHS INCREASING IN RADIAL OUTWARD DIRECTION.

摘要

A tire having a radial carcass reinforcement and a tread reinforcement formed of at least two nonfolded diagonal superposed plies of different widths and of at least one diagonal ply with two folded edges, each of said folded edges resting on at least a portion of a nonfolded ply, is improved against structural defects by an arrangement wherein the nonfolded plies have axial widths which increase with the radial distances of said plies from the axis of the tire and wherein the ply with folded edges is so arranged that its folded edges cover at least the edges of the widest nonfolded ply.