To provide a tire tangential load measuring apparatus capable of directly measuring a tangential load of a tire without using a large-sized device, and a tire rolling resistance evaluation apparatus capable of evaluating rolling resistance of a tire using the tire tangential load measuring apparatus.SOLUTION: A tire tangential load measuring apparatus 10 includes: two or more load rolls 44A and 44B having a diameter smaller than that of a tire and disposed side by side; an air cylinder 13 as a movement mechanism causing the two or more load rolls 44A and 44B to press the rotating tire by a prescribed load fz; a strain gauge 51 as a tangential load sensor for measuring a tangential load fx of the tire in the rotating state, where surfaces of the two or more load rolls 44A and 44B are pressed against a tread surface of the tire by the prescribed load fz. The tire rolling resistance evaluation apparatus uses the tangential load measuring apparatus 10.SELECTED DRAWING: Figure 7
【課題】大型の装置を用いることなく、タイヤの接線方向荷重を直接計測可能なタイヤの接線方向荷重計測装置およびこのタイヤの接線方向荷重計測装置を用いてタイヤの転がり抵抗評価が可能なタイヤの転がり抵抗評価装置を提供することにある。【解決手段】タイヤの接線方向荷重計測装置10は、タイヤより小径であり、かつ並べて配置された2本以上の負荷ロール44A、44Bと、この2本以上の負荷ロール44A、44Bを、回転するタイヤに所定の負荷荷重fzで押圧可能な移動機構としてのエアシリンダ13と、2本以上の負荷ロール44A、44Bの表面がタイヤのトレッド面に前記所定の負荷荷重fzで押圧されて、回転する状態のタイヤの接線方向荷重fxを計測するための接線方向荷重センサとしての歪ゲージ51と、を備えている。また、タイヤの転がり抵抗評価装置は、この接線方向荷重計測装置10を用いる。【選択図】図7
MEASURING APPARATUS OF TANGENTIAL LOAD OF TIRE AND EVALUATION APPARATUS OF ROLLING RESISTANCE OF TIRE
タイヤの接線方向荷重計測装置およびタイヤの転がり抵抗評価装置
2019-06-06
Patent
Electronic Resource
Japanese
IPC: | G01L Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden , MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE / B60C VEHICLE TYRES , Fahrzeugreifen / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES |
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