| 摘要 |
PROBLEM TO BE SOLVED: To provide a rounding method capable of increasing production capacity by simply and automatically performing rounding with different curvatures depending on booklets with different thicknesses, and the like.SOLUTION: In a rounding method, rounding of a back is performed by pressing a bolt-side end surface of a laminate 3 against a curved body 15 selected from among a plurality of curved bodies 15 with different curvatures. Information on the thickness of the laminate 3 is acquired, and the curved body 15 with the curvature appropriate for the thickness of the laminate 3 is selected from among the plurality of curved bodies 15 with the different curvatures depending on the information on the thickness. |
