| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for folding sheets, and a buckle folding machine, by improving passage of the sheets passing through a folding unit, and by removing a fault of a well-known prior art at least partially.SOLUTION: A surface of at least one roller of rollers among folding roller pairs (2, 3;2, 2.Z) has a circumferential speed (v2) always higher than a circumferential speed (v1) of a surface of at least one roller among rollers of a first roller pairs (1.1, 2;1, 1.1). |
