| 摘要 |
PROBLEM TO BE SOLVED: To provide a tire durability testing method capable of effectively and precisely reproducing and evaluating the internal failure tend to occur in the pneumatic tire mounted on the vehicle running continuously in a comparatively hot area. SOLUTION: The tire durability testing method is not performed with pre treatment step for degradation promotion treatment for the pneumatic tire, but at the real test performing the drum durability test with prescribed test speed while imparting the test loading to the pneumatic tire, the pneumatic tire is filled with the gas including oxygen (S1) the partial pressure of which is≥30%, so that the testing speed is increased by stepwise, and at the same time the testing speed for each step is maintained at least for 5 hours (S3). COPYRIGHT: (C)2007,JPO&INPIT
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