Patent ID: 6634223
Filing Date: 2003-10-21
Classification: B60C

Abstract:
A method for measuring the tread or profile depth of a tire, whereby measurement of the tread depth takes place in an operating state while the tire is rolling and in contact with a surface below it, said method including the steps of:detecting vibrations of said tire or of parts thereof, wherein vibrations are generated by at least one of a spacing and geometry of profiled elements of said tire tread while the tire is rolling and in contact with a surface below it; and comparing the detected vibrations, in an evaluation unit, with a characteristic theoretical value/threshold value for the vibrations, which characteristic value corresponds to a vibration generated by a tread of adequate depth, wherein said evaluation unit issues a signal if a detected vibration deviates from said theoretical value/threshold value, which deviation corresponds to a tread depth that is less than said adequate depth.