Alarm safety insert
AssigneeCompagnie Générale des Etablissements Michelin & Cie
InventorArnaud Dufournier
Life of this patent
Estimating the term…
Abstract
A safety insert is designed to be mounted in an assembly including a tire and a rim of a vehicle, so that on bearing of the tire against the insert, the insert will generate multiple vibrating signals of the rotation frequency of the tire. In one embodiment, the vibrating signals are generated by a variation of at least one of the outer radius and radial stiffness as a function of azimuth α, which presents at least four maxima distributed in at least twice two different values M1 and M2.
Claims18
A safety insert intended to be mounted in an assembly comprising a tire and a rim of a vehicle and, radially outward from the rim, said insert having a radially outer bearing surface which defines a radial support for the crown of the tire when said tire is deflated and means for generating vibrating warning signals on a run-flat condition, in which said means comprise a variation of a first characteristic M chosen from the group of outer radius and radial stiffness of said insert as a function of azimuth α, which presents at least four maxima distributed in two groups having different values M1 and M2, each group having at least two maxima regularly distributed as a function of azimuth α and offset from each other.
A safety insert intended to be mounted in an assembly comprising a tire and a rim of a vehicle and, radially outward from the rim, said insert having a radially outer bearing surface which defines a radial support for the crown of the tire when said tire is deflated and means for generating vibrating warning signals on a run-flat condition, in which said means comprise a variation of a characteristic M chosen from the group of outer radius and radial stiffness of said insert as a function of azimuth α, which presents at least four maxima distributed in at least twice two different values M1 and M2, said insert further comprising a cylindrical base intended to be fitted around the rim, a cylindrical crown intended to come in contact with the tire in case of pressure loss, and walls appreciably connecting the base and the crown radially.
Dependencies are inferred from the claim text.