| 摘要 |
<p>The invention relates to a pre-vulcanized replacement tread strip which is contoured to provide improved consistency in application, appearance and road endurance. The tread comprising a sole having a nominal arc in a cross-sectional plain of a pre-determined radius, respective tread shoulders, an upper tread portion disposed between said shoulders and overlying said sole, said upper tread portion having associated therewith a nominal arc extending between said tread shoulders and respective skirts, each skirt including a planar interior wall, an interior interconnection portion, an exterior side wall and an end portion, connecting said interior and exterior walls. There are given certains relations between radii and arc length which are decisive for a favourable retreading of a worn tire. <IMAGE></p> |
