Patent ID: 9738118
Date: 2017-08-22
CPC Classifications: B60C,D07B,Y10T

Claim:
1. A tyre for vehicle wheels, comprising: a carcass structure comprising at least one carcass ply; a belt structure applied in a radially outer position with respect to said carcass structure; and a tread band applied in a radially outer position with respect to said belt structure, wherein the belt structure comprises at least two main belt layers and first and second reinforcing strips that are axially spaced from one another and that are arranged in respective ends of the belt structure, said first and second reinforcing strips being arranged in a radially outer position with respect to said at least two main belt layers, the first and second reinforcing strips incorporating a plurality of reinforcing elements arranged substantially in a circumferential direction; wherein the reinforcing elements comprise at least one high-elongation metal cord; wherein the metal cord comprises a plurality of intertwined strands and each strand comprises a plurality of filaments; wherein substantially all the filaments of each strand have a diameter not greater than 0.175 mm; wherein said first and second reinforcing strips are formed by two or more radially superimposed turns of a rubberized tape; wherein the belt structure also comprises a further belt layer arranged in a radially outer position and extending over at least one half of a width of each of the first and second reinforcing strips; wherein axially outer ends of a radially outermost layer of said at least two main belt layers are arranged to extend axially further than axially outer ends of the first and second reinforcing strips, wherein axially outer ends of the first and second reinforcing strips are arranged to extend axially further than axially outer ends of the further belt layer, wherein said plurality of reinforcing elements comprises a first number of reinforcing elements with filaments having a first diameter and a second number of reinforcing elements with filaments having a second diameter, the first diameter being smaller than the second diameter, and wherein the reinforcing elements with filaments having a first diameter are arranged in an axially innermost position and the reinforcing elements with filaments having a second diameter are arranged in an axially outermost position.