Patent ID: 6315019
Filing Date: 2001-11-13
Classification: B60C,Y10T

Abstract:
Tire for vehicle wheels, comprising a torus-shaped radial carcass, a tread band situated at the top of said carcass and moulded with a pattern in relief having a plurality of grooves oriented in a varying manner with respect to the circumferential direction of said tire, and a belt structure located between carcass and tread band, having an axial width substantially corresponding to that of the tread band, said structure comprising a first belt strip, in a radially internal position, provided with reinforcing elements parallel to one another and inclined relative to the equatorial plane, a second belt strip radially superimposed on said first strip and provided with reinforcing elements parallel to one another and inclined relative to the equatorial plane in a direction opposite to those of the first strip, a pair of lateral bands radially superimposed on the ends of said second strip and symmetrically arranged with respect to the equatorial plane of said tire, each band incorporating reinforcing elements oriented in a circumferential direction, wherein:said second belt strip has an axial width less than that of the first strip and has its edges staggered axially inwards with respect to the corresponding edges of said first strip;each band comprises a single layer of reinforcing elements which has its axially external edge staggered axially inwards with respect to the corresponding edge of said second strip;a third belt strip, provided with reinforcing elements arranged parallel to one another and inclined with respect to the equatorial plane of the tire, is applied in a radially external position onto said belt structure and covers said lateral bands, said third strip having its edges staggered axially inwards with respect to the corresponding axially external edges of said bands.