| 摘要 |
Balls for sports use, comprising a set of panels (1) joined together edge-to-edge wherein one or more of said panels has at least one preformed flexion line (2) extending across the panel. In particular elongate sports balls (6) having a number of panels (1) joined together by seams, in which each panel (1) is longitudinally elongate so as to extend most or all the length of the ball (6) and has a plurality of flexion lines (2) extending longitudinally side by side along substantially or entirely the length of that panel. Also a method for producing such panels, and a method for producing sports balls from the panels. |
