| 摘要 |
PURPOSE: A thread kerf structure of a heavy-duty tire is provided to improve durability and drainage and to improve the braking performance for a wet road. CONSTITUTION: A thread kerf structure of a heavy-duty tire comprises a block, a kerf(2), and a flow path(3). The kerf is installed on the block in order to reinforce the braking performance on ice and wet road. The bottom part of the kerf has wider area than an inlet(2a) of the kerf. A perpendicular waveform contact hole(2b) is formed between the bottom part of kerf and the horizontal wave form inlet of the kerf. The flow path is formed on the bottom part of the kerf. The flow path comprises a blade rubber(4). A cylinder pipe(3a) of a sawtooth shape is formed on the flow path along the longitudinal direction of the flow path.
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