| 摘要 |
PURPOSE: A heavy duty pneumatic tire for belt durability is provided to improve the durability of a belt and the regeneratory of a tire by preventing cracks on a shoulder rib and the separation of a belt. CONSTITUTION: A heavy duty pneumatic tire for belt durability comprises a tread(10) and a belt layer(20). The tread symmetrically forms a rib pattern and a plurality of grooves around a center line(CL) of a tire. The rib pattern comprises a center rib(11) and a shoulder rib(12). The belt layer includes four belt plies(21,22,23,24) and is arranged a lower part of the thread. A chamfered surface(30) is formed on the outer edge of the shoulder rib which is equipped in the left and right ends of the tread in order to form bilateral symmetry around the center line. |
