| 摘要 |
PURPOSE:To prevent a tire against inclined abrasion without injuring its wet characteristic for selecting ratios of pitch and width between a main groove provided around a tread and the zigzag ridgeline of a tread convex part provided in the neighborhood respectively within a fixed range. CONSTITUTION:The continuous or intermittent ridgeline of a tread convex part 2 is shaped to be zigzag in itself in the neighborhood of a main groove 1 continuously or intermittently provided to be zigzag around a tread T. The zigzag pitch p of the ridgeline is selected to be 1/10-1/5 of the zigzag pitch P of the main groove 1, while the zigzag width w of the ridgeline to be 1/10-1/2 of the zigzag width W of the main groove 1. This construction permits to prevent a tire against inclined abrasion without injuring its wet characteristic.
|
