| 摘要 |
PURPOSE:To increase the effect of friction on pressed snow and the face of ice to prevent the damage of a road surface by using hard rock and sand embedding rubber in a tire surface portion. CONSTITUTION:Hard rock and sand embedding rubber 1 is attached to a tire body instead of a spike portion. Next, groove portions are formed in a tire surface portion, and the painting 2 for slipping is applied to the inside of the groove portions. Thus, because of using the hard rock and sand embedding rubber, the effect of friction is increased on pressed snow and the face of ice, and the road surface is not damaged on a road surface exposed, and the groove portions improve the engagement with snow, and further the effect of a sucking disk is increased in the groove portions because of slipping off the snow. And the effect of catepillar is increased better. |
