| 摘要 |
PURPOSE:To prolong the fire life by extruding a rubber chafer and a side rubber into an integral form by a dual T-bar. CONSTITUTION:A boundary part 26 between a rubber chafer 22 and a side rubber 24 is oriented from inside in tire width direction to outside in the tire width direction and inclined from inside in tire radial direction to outside in the tire radial direction. The rubber chafer 22 and the side rubber 24 are extruded by a dual T-bar into an integral form. Accordingly, there is no occurrence of stepped parts at the boundary part 26 between the rubber chafer 22 and the side rubber 24. For this reason, upon valcanization, no creek occurs at the boundary part 26 between the rubber chafer 22 and the side rubber 24, the separation of the boundary part 26 is prevented and the tire life can be prolonged. |
