| 摘要 |
An indicator for recognizing wear of a saw blade of a tire is provided to extend life time of a tire by notifying replacement time to a driver properly, by installing a plurality of indicators in a hole vertically formed on a surface of a tire block for allowing the driver to check state of the tire with naked eyes. A plurality of indicators(1) are aligned at a beginning part and an end part of a ground of a tire block(B) to allow the indicators to recognize abrasion of a saw blade of a tire. A hole is vertically formed on a surface of the tire tread block. The hole is shaped as a column. The plural indicators connect the beginning part of the ground and the end part of the ground on the line. The plural indicators are horizontally aligned at the beginning part of the ground and the end part of the ground respectively. The depth of the hole of the indicators is more than 1mm but within abrasion limit range.
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