A tire for motor vehicles, having a tread band extending around a rotation axis includes an annular central portion astride an equatorial plane of the tire, two annular shoulder portions arranged on axially opposite sides with respect to the annular central portion and two annular side portions each arranged between the annular central portion and a respective annular shoulder portion, the tread band having at least one module replicated along a circumferential direction of the tire and including at least one plurality of primary grooves inclined with respect to the equatorial plane and arranged at least on the annular portions, and at least one plurality of secondary recesses arranged mainly on the annular central portion and on at least one annular side portion, wherein a substantial disappearance of the secondary recesses determines a difference in the empty/solid ratio on the annular central and side portions between a new tire and a tire that has travelled at least 2000 km greater than 1.7%.
Tyres for motor vehicles
2015-09-29
Patent
Electronic Resource
English
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
Making tyres for passenger vehicles
Engineering Index Backfile | 1939
Online Contents | 2007
Wheels for vehicles other than wheel tyres
Engineering Index Backfile | 1930