| 摘要 |
PROBLEM TO BE SOLVED: To simplify the subject device, and to reduce the cost by arranging the device near the component of a tire before rotation, and storing permanent information according as which part of the tire has received stress in a constant number cycles or the like, during a fixed period. SOLUTION: The rectangular device 1 is constituted of a thin rubber layer that constitutes a support 5, and three wires 2-4 are arranged on the support 5 in the same direction in parallel for a wide side. The wires 2-4 can sense stress repeatedly. The wires 2-4 with different diameters indicate different fatigue characteristics, thus obtaining accurate information regarding the rotary conditions of wires 2-4 with the device. Also, the wires 2-4 can be positively fixed to the support 5, and a thin rubber layer 6 is applied to the end of the wires 2-4 to directly read the stored information. |
