| 摘要 |
Tyre for motor vehicles, provided with a belt structure (3) interposed circumferentially between the carcass (2) and the tread band (4), and comprising at least one pair of belt plies (5,7) radially superimposed on each other and extending axially substantially by the same amount as said tread band. Each ply (5,7) has a plurality of cords (6,8) orientated obliquely with respect to the equatorial plane of the tyre and in opposite directions, and a reinforcing layer (10) radially external to said at least one pair of belt plies (5,7), having reinforcing elements (11) which are substantially parallel to each other and parallel to the equatorial plane. The reinforcing elements (11) of the 0° layer comprise single metal wires preformed according to a given preforming ratio, which have a high elastic modulus and a considerable elongation at low stresses. |
