tyre for motor vehicles with tread design particularly suitable for the march on the snowy

摘要

a drawing tread for winter tires for cars, has transverse grooves (2) converge symmetrically up in correspondence with the equatorial plan "x" of the tire.and a pair of grooves circonferenziali (3) defined respectively by sections obliques (3a) for convergent approach toward the equatorial plan "x,in the opposite direction to the direction of rolling "d" according to which the transverse grooves (2) converge.grooves (6) of increasing width in the opposite direction to the direction of rolling are derived, horse, each transverse groove (2).in the middle of two pieces of core (4) adjacent.a central notch (7) of the separation of the fragments of the centre (4) defines these past walls of separation (7a) made to come into contact to each other in the area of the indentation.