| 摘要 |
PROBLEM TO BE SOLVED: To provide a thermal degradation evaluating/testing method of a pneumatic tire capable of accurately performing a durability test of the tire in line with the market in a short time in a room. SOLUTION: In the thermal degradation evaluating/testing method of the pneumatic tire, a part on the circumference of a tire tread section Wt, namely a shoulder section Sx on one side shown by Fig.2, is heated by a band-like heating means 2. The heated region by the heating means 2 is between 1/6 (60°) and 1/3 (120°) on the full circumference (360°) of the tire tread section Wt, preferably 1/4 (90°). The heated region of the tire tread section Wt is the full circumference or a part in the tire circumferential direction in a part from the center of the tire tread section to the shoulder. COPYRIGHT: (C)2007,JPO&INPIT
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