Patent ID: 6311747
Filing Date: 2001-11-06
Classification: B60C,Y10S,Y10T

Abstract:
A tire for two-wheeled vehicles comprising:a carcass structure (2) of toric form having a high transverse curvature and provided with a central crown portion (16) and two sidewalls ending in a couple of beads (15) for anchoring onto a corresponding mounting rim;a belt structure (6), circumferentially inextensible, coaxially extended around the carcass structure (2);a tread band (8) coaxially extended around the belt structure (6) and comprising a plurality of rubber blocks (10) defined between a plurality of grooves (11) extending along a direction substantially transverse to the running direction of the tire, said tread band (8) being free from any groove extending along a direction substantially parallel to the running direction of the tire, said grooves (11) comprising a bottom (12) connected to opposite inlet (13) and outlet (14) lateral walls extending substantially perpendicular to said bottom (12) such that said lateral walls (13, 14) form with respect to a plane perpendicular to said bottom (12) an angle varying from 0.degree. to 40.degree.;wherein in an equatorial zone (E) of the tread band (8) the inlet wall (13) of said grooves (11) is inclined with respect to said bottom (12) towards the rolling direction of the tire and forms with respect to a plane (.pi.) tangent to said bottom (12) an angle .alpha. of from 50.degree. to 80.degree..