PROBLEM TO BE SOLVED: To provide a method for measuring the shape of a tread, capable of promptly calibrating values measured by a plurality of displacement meters even in an environment easily affected by atmospheric temperature to enhance the accuracy of measurement.SOLUTION: A method for measuring the shape of a tread, capable of measuring the surface shape of the tread part of a tire to be measured using a plurality of non-contact type displacement meters comprises: the arrangement step S1 of arranging each displacement meter at an interval in the direction of a tire shaft so that a calibration measurement region being a part of each measurement region overlap to each other; the measurement step S2 of measuring distance data from each displacement meter to the surface of the tread part of the tire to be measured, by each displacement meter; and the calibration step S4 of calibrating the distance data measured in the entire measurement region of at least one displacement meter on the basis of the distance data measured by each displacement meter in the calibration measurement region.SELECTED DRAWING: Figure 2

    【課題】雰囲気温度の影響を受けやすい環境下であっても、複数の変位計の測定値を迅速に較正し、測定精度を高めることができるトレッド形状測定方法を提供する。【解決手段】トレッド形状測定方法は、複数の非接触式の変位計を用いて被測定タイヤのトレッド部の表面形状を測定する。トレッド形状測定方法は、各変位計をタイヤ軸方向に間隔を隔てて、かつ、それぞれの測定領域の一部である較正用測定領域が互いに重複するように配置する配置工程S1と、各変位計によって各変位計から被測定タイヤのトレッド部の表面までの距離データを測定する測定工程S2と、較正用測定領域で各変位計によって測定された距離データを基準として、少なくとも一方の変位計の測定領域の全体で測定された距離データを較正する較正工程S4とを含む。【選択図】 図2


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    Title :

    METHOD AND DEVICE FOR MEASURING SHAPE OF TREAD


    Additional title:

    トレッド形状測定方法及びトレッド形状測定装置


    Contributors:

    Publication date :

    2017-01-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / B60C VEHICLE TYRES , Fahrzeugreifen



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