Tire with seats of unequal diameters and reverse axial offset in an inflated state
AssigneeMichelin Recherche et Techique S.A.
InventorsNicolas Grolier, Nicolas Janin
Life of this patent
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Abstract
A tire is provided that includes a crown with a mid-plane S, two sidewalls, a first bead, of diameter Φ1, intended to be positioned on the outboard side of a vehicle, and a second bead, of diameter Φ2, intended to be positioned on the inboard side of a vehicle, such that Φ1>Φ2. When the tire is mounted on its working rim and inflated to its nominal pressure, the mid-plane S of the crown is axially offset towards the first bead relative to a mid-plane B of the beads by a positive or zero distance D.
Claims7
A tire, comprising:
- a crown with a mid-plane S;
- two sidewalls;
- a first bead, of diameter Φ1, intended to be positioned on an outboard side of a vehicle;
- and
- a second bead, of diameter Φ2, intended to be positioned on an inboard side of the vehicle,
- wherein Φ1>Φ2, and
- wherein, when the tire is mounted on its working rim and inflated to its nominal pressure, the mid-plane S of the crown is axially offset towards the first bead relative to a mid-plane B of the first and second beads by a positive or zero distance D.
A method of manufacturing a tire that includes a crown with a mid-plane S, two sidewalls, a first bead, of diameter Φ1, intended to be positioned on an outboard side of a vehicle, and a second bead, of diameter Φ2, intended to be positioned on an inboard side of a vehicle, wherein Φ1>Φ2, the method comprising:
- curing using a curing mould in which, if a mid-plane of the beads B is defined as a plane parallel to the mid-plane S and positioned axially at an equal distance from the first and second beads, then the mid-plane of the beads B is axially offset towards the second bead relative to the mid-plane S of the crown by a given distance L.
Dependencies are inferred from the claim text.