| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a testing method of a tire, for determining destruction bearing force of the tire including a sidewall. <P>SOLUTION: The testing method of a tire includes a step of mounting a sample tire T on at least one wheel of a vehicle 5 for testing, and a step of making the sample tire T go over and pass through a circular step by making the vehicle 5 travel. The circular step comprises a manhole frame body 1 whose shape in the plan view viewing vertically downward from the above is circular, a bottom part 2 inside the manhole frame body 1 is lower than the outside, and the bottom part 2 has such rigidity that it is not displaced even when the sample tire T of the vehicle 5 gets thereon. It is preferable that an inner diameter of the manhole frame body 1 is in a range of 700 mm or more and 900 mm or less, and it is preferable that a depth of the manhole frame body 1 is in a range of 60 mm or more and 100 mm or less. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
