PROBLEM TO BE SOLVED: To provide a tire abrasion evaluation method capable of properly evaluating a tire abrasion state after a vehicle actually travelled.SOLUTION: A tire abrasion evaluation method comprises: preparing a test tire; regulating an evaluation zone of the test tire, based on at least one of a pitch and a block; regulating a minimum zone of the test tire, in the evaluation zone based on a lug groove or a sipe; setting at least two measurement points in a peripheral direction in the minimum zone; setting a reference point in the measurement; measuring the distance between the first measurement point and the reference point; measuring the distance between the second measurement point and the reference point; calculating the step difference amount between the first measurement point and the second measurement point, based on a difference of the distance between the first measurement point and the reference point, and the distance between the second measurement point and the reference point; and, based on the calculated step difference amount, evaluating a peripheral direction polarized abrasion performance on the test tire.SELECTED DRAWING: Figure 6
【課題】実際に走行した後のタイヤの摩耗状態を的確に評価できるタイヤの摩耗評価方法を提供する。【解決手段】タイヤの摩耗評価方法は、試験タイヤを準備することと、ピッチ及びブロックの少なくとも一方に基づいて試験タイヤの評価区画を規定することと、ラグ溝又はサイプに基づいて評価区画において試験タイヤの最小区画を規定することと、最小区画において周方向に少なくとも2つの計測点を設定することと、計測における基準点を設定することと、第1計測点と基準点との距離を計測することと、第2計測点と基準点との距離を計測することと、第1計測点と基準点との距離と第2計測点と基準点との距離との相違に基づいて、第1計測点と第2計測点との段差量を算出することと、算出された段差量に基づいて、試験タイヤの周方向偏摩耗性能を評価することと、を含む。【選択図】図6
TIRE ABRASION EVALUATION METHOD
タイヤの摩耗評価方法
2016-06-20
Patent
Elektronische Ressource
Japanisch
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