Aircraft tire having a casing reinforcement member with improved durability

摘要

The radial tire for an aircraft (1) defines three main directions of circumferential direction (X), axial direction (Y) and radial direction (Z), and a crown (2) on which the tread (3) is placed; It comprises two side walls (4) and two beads (5), each of the side walls (4) connecting the bead (5) to the crown (2) and further beading at the at least one bead wire (6) A carcass reinforcing member (7) fixed in each of (5) and extending in the side wall (4) to the crown (2); and extending in the circumferential direction (X) in the crown (2) and carcass A carcass reinforcing member (7), which is referred to as a radial carcass reinforcing member, comprising a crown reinforcing member or a belt (10) radially arranged between the reinforcing member (7) and the tread (3), N multi forming a helical structure Rubber reinforced by a substantially radially oriented reinforcing element, called a radial fabric reinforcer, consisting wholly or partly of nylon woven plied yarn (30) comprising yarn strands (20a, 20b, 20c) With at least one ply, referred to as carcass ply, in the form of a matrix or composition, -N is greater than 2,-count number indicated by Ti of each strand is greater than 180 tex,-indicated by Te1 of each strand The tensile strength is greater than 75 cN / tex, the breaking elongation of each strand shown by Ar 1 is greater than 14%, the tensile strength shown by Te 2 of each ply yarn is greater than 60 cN / tex, each Elongation at break indicated by Ar2 of ply yarn is greater than 18%,-helical angle indicated by α of each ply yarn Is characterized by greater than 20 degrees. [Selected figure] Figure 1