Safety insert generating a transverse vibrating signal and device for sensing the tire bearing on the insert
AssigneeCompagnie Generale Des Etablissements Michelin
InventorsArnaud Dufournier, Francois Hottebart
Life of this patent
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Abstract
A safety insert designed to be mounted in an assembly comprising a tire and a rim of a vehicle and device for detecting the bearing of the tire on an insert, so that the insert generates signals oriented parallel to the axis of rotation of the tire and rim assembly and so that the device detects and analyzes the vibrating signals of the chassis of the vehicle.
Claims33
A safety insert designed to be mounted in an assembly comprising a tire and a rim of a vehicle and radially on the outside of the rim, said insert having a radially outer bearing surface which defines a radial bearing for the crown of the tire when said tire is deflated and means for generating vibrating warning signals on a run-flat condition, characterized in that said means generate signals oriented parallel to the axis of rotation of the tire and rim assembly.
A device for detecting the bearing of a tire of a vehicle, equipped with a plurality of tire, rim and safety insert assemblies, the insert of each assembly being mounted between the rim and the radially inner face of the tire tread, on the corresponding safety insert, each assembly being capable of triggering the emission of a vibrating signal when the tire comes in contact with the insert after a pressure loss in the tire, comprising means of detection and treatment of said vibrating signal, including a single sensor capable of being mounted on the vehicle and sensitive to the signals emitted by each of the said assemblies, when the corresponding tire comes in contact with the respective insert, and an indicator capable of signaling to the occupant of the vehicle a run-flat condition in response to a signal picked up by said sensor.
A device for detection of bearing of a tire of a vehicle, equipped with a plurality of tire, rim and safety insert assemblies in which the safety inserts are mounted between the rim and the radially inner face of the tire tread, on the corresponding safety insert, each assembly being capable of transmitting a characteristic vibration to the chassis of the vehicle in response to the bearing of one of the tires on the corresponding safety insert as a result of a pressure loss in the tire, comprising:
- means of detection and treatment of such predetermined characteristic mechanical vibration of the chassis of the vehicle;
- and
- means of transmission of an alarm.
A tire designed to equip a tire, wheel and safety insert assembly in which the safety insert is mounted between the rim and the radially inner face of the tire tread, characterized in that said tire is equipped with means capable of generating a vibrating signal when said tire comes in contact with a corresponding insert following a pressure loss in said tire.
Dependencies are inferred from the claim text.