Patent ID: 6318432
Filing Date: 2001-11-20
Classification: B29D,B60C,Y10T

Abstract:
A tire for vehicle wheels, comprising:a carcass structure having at least one first carcass ply formed of at least one thread element arranged along deposition paths each extending in a substantially U-shaped conformation about a profile in transverse section of the tire, and a pair of circumferentially inextensible annular structures each engaged close to a respective inner circumferential edge of the at least one first carcass ply;a belt structure applied to the carcass structure at a circumferentially external position thereof;a tread band applied to the belt structure at a circumferential external position thereof;at least one pair of sidewalls applied to the carcass structure at laterally opposite positions;wherein the at least one first carcass ply comprises:at least one continuous strip element comprising a plurality of longitudinal and parallel thread elements at least partly coated with at least one layer of raw elastomer material;the at least one strip element having distinct deposition sections, each of which extends in a substantially U-shaped conformation about the profile in transverse section of the tire, to define two side portions substantially extending in planes orthogonal to a geometric axis of rotation of the tire at mutually spaced apart positions in an axial direction, and a crown portion extending in a radially external position between the side portions;the crown portion of each deposition section being arranged in side-by-side relationship along a circumferential extension of the tire, and the side portions of each deposition section each being partly overlapped with a side portion of at least one adjacent deposition section;the side portions in mutual-overlapping relationship being joined to each other at a bending end region where the at least one strip element is folded upon itself;each of the inextensible annular structures being laterally applied to the at least one first carcass ply.