Patent ID: 8770245
Filing Date: 2014-07-08
Classification: B60C,Y10T

Abstract:
1. A tyre for two-wheeled vehicles comprising: a carcass structure of substantially toroidal shape comprising a central crown portion, two axially opposite shoulder portions, and two axially opposite side portions, each side portion being associated with a respective bead structure; a belt structure of substantially annular shape applied at a radially external position to the carcass structure at the central crown portion; a tread band applied at a radially external position relative to the belt structure; and a pair of sidewalls, each sidewall covering a side portion of the tyre between a lateral edge of the tread band and the respective bead structure, said tyre having a transverse-curvature ratio f/C≧0.2 and a height sidewall ratio (H−f)/H≦0.7; said belt structure comprising at least one belt layer formed with a plurality of strip-like elements, each strip-like element comprising reinforcing thread elements disposed parallel to each other along a longitudinal direction of the strip-like element; and each reinforcing element being disposed in a laying trajectory defining, at each point, a laying angle relative to a meridian plane of the tyre passing through that point, wherein a laying angle at one of the shoulder portions (α wherein the strip-like elements of said plurality are laid in such a manner that a distance or gap between a last reinforcing element of a strip-like element and a first reinforcing element of a neighboring strip-like element subsequently laid in a circumferential direction is variable over at least one section of respective laying trajectories, and wherein a variation in the distance or gap is in relationship with an angle difference on the one of the shoulder portions and at the equatorial plane of the tyre, so that (α