| 摘要 |
PROBLEM TO BE SOLVED: To provide a tire testing device for measuring accurate tire characteristics by fully increasing a temperature of treads by traveling. SOLUTION: A sliding speed of a tread rubber is increased more than in the case safety walk has been been employed to enhance the frequency, and the temperature of the treads can be increased fully, as compared to the case where safety walk is used, by arranging a road surface member 30 forming a large number of projection parts (aggregate 34) in which irregularities height H is in the range of 0.2-2.0 mm and an interval L between adjacent projections is 1.0-7.0 mm on the surface of an endless belt 18. COPYRIGHT: (C)2008,JPO&INPIT
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