Motor vehicle tire
AssigneePirelli Tyre S.p.A.
InventorsMario Mariani, Stefania Masciullo, Pierangelo Misani
Life of this patent
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Abstract
A motorcycle tire having a transverse curvature ratio f/C≧0.2 and a sidewall height ratio (H−f)/H≦0.7, has a belt structure provided with a belt layer including at least one filiform reinforcing element arranged to form a plurality of windings parallel to one another at a substantially zero angle relative to the equatorial plane of the tire. The available elongation of the belt in an intermediate zone between the equatorial plane, and the shoulder is greater than the available elongation corresponding to the equatorial plane. The aforementioned intermediate zone extends at least in a range centered on a camber angle of ±35°.
Claims14
A motor vehicle tyre comprising:
- a carcass structure comprising a central crown portion and two axially opposed lateral portions, each lateral portion being associated with a respective bead structure;
- a belt structure applied in a position radially external to the carcass structure;
- and
- a tyre tread applied in a position radially external relative to the belt structure,
- said tyre having a transverse curvature ratio f/C≧0.2 and a sidewall height ratio (H−f)≦0.7;
- and
- said belt structure being provided with a belt layer comprising at least one filiform reinforcing element arranged to form a plurality of windings parallel to one another at a substantially zero angle relative to an equatorial plane of the tyre,
- wherein, in an intermediate zone between the equatorial plane and a shoulder, said belt has an available elongation greater than an available elongation corresponding to the equatorial plane;
- and
- wherein said intermediate zone extends at least in a range centred on a camber angle of ±35°, and
- wherein the available elongation is substantially decreasing between a range centred on a camber angle of about ±45° and the shoulder.
A method for controlling the driving characteristics of a motor vehicle, comprising providing a tyre having a transverse curvature ratio f/C≧0.2 and a sidewall height ratio (H−f)/H≦0.7,
- said motor vehicle tyre having a belt structure provided with a belt layer comprising at least one filiform reinforcing element arranged to form a plurality of windings parallel to one another at a substantially zero angle relative to an equatorial plane of the tyre;
- and
- said method comprising increasing an available elongation of the belt in an intermediate zone between the equatorial plane and a shoulder relative to the available elongation corresponding to the equatorial plane,
- wherein said intermediate zone extends at least in a range centred on a camber angle of ±35°,
- said method further comprising substantially decreasing the available elongation of the belt between a range centred on a camber angle of about ±45° and the shoulder.
Dependencies are inferred from the claim text.