Patent ID: 6319345
Filing Date: 2001-11-20
Classification: B60C,Y10T

Abstract:
A process for the manufacture of a high-transverse-curvature tire comprising the steps of:previously manufacturing a carcass structure comprising at least one carcass ply having edges which are turned back around two bead cores;arranging an auxiliary support element on a comb drum, wherein the auxiliary support element is made in a form of a sheet of elastomeric material wound around the comb drum;shaping the auxiliary support element so as to give the auxiliary support element a curvilinear transverse profile, through radial expansion of a plurality of radially movable sectors associated with the comb drum;circumferentially winding around the auxiliary support element at least one inextensible cord forming a plurality of circumferential coils disposed consecutively side-by-side to define a belt structure of a curvilinear transverse profile;circumferentially applying a tread band to the belt structure; andapplying the belt structure together with the tread band to a circumference of the previously manufactured carcass structure, the elastomeric material forming the auxiliary support element having a blend of bonding means provided in order to increase stretchability of the elastomeric material without substantially altering adhesiveness thereof;wherein the bonding means comprises aramid pulp.