Tyre for vehicle wheels
AssigneePirelli Tyre S.p.A.
InventorPiero Losi
Life of this patent
Estimating the term…
Abstract
A wheel for vehicles includes: a rim and a tyre mounted on the rim and inflated to an operating pressure; axial end portions of a tread band of the tyre radially spaced apart the same distance from a rotation axis of the wheel and a median circumferential line of the tread band axially shifted by a predetermined distance relative to a mid-line plane of the wheel; the wheel mounted on a car with a camber angle substantially zero and with the median circumferential line shifted toward the outside of the car relative to the mid-line plane.
Claims29
1-28. (canceled)
A tyre for vehicle wheels, comprising:
- a carcass structure having a pair of beads;
- and
- a tread band disposed at a radially external position with respect to the carcass structure,
- wherein the tread band has axial end portions radially spaced apart a same distance from a rotation axis of the tyre;
- and
- wherein a median circumferential line of the tread band is axially shifted by a predetermined distance relative to a mid-line plane of the tyre.
A wheel for vehicles, comprising:
- a rim;
- and
- a tyre mounted on the rim, inflated to an operating pressure and comprising:
- a carcass structure having a pair of beads, and a tread band disposed at a radially external position with respect to the carcass structure,
- wherein axial end portions of the tread band are radially spaced apart a same distance from a rotation axis of the wheel;
- and
- wherein a median circumferential line of the tread band is axially shifted by a predetermined distance relative to a mid-line plane of the wheel.
A method for controlling symmetry of a footprint area of at least one same tyre running on a straight and curvilinear trajectory, comprising:
- mounting said tyre on a rim, a resulting wheel being mounted on a car with a predetermined camber angle;
- and
- inflating the tyre to an operating pressure, a median circumferential line of a tread band of the tyre being shifted toward the outside of the car by a predetermined distance relative to a mid-line plane of said wheel,
- wherein, during running on a bend, the footprint area of the tread band of said tyre, when external to the bend, takes a more symmetric configuration relative to said mid-line plane than a configuration taken during running on a straight trajectory.
Dependencies are inferred from the claim text.