| 摘要 |
PROBLEM TO BE SOLVED: To enable mainly opening a signature or the like and inserting other printed materials or the like in it in the process or the like after printing. SOLUTION: In the process of winding a main sheet around a drum and rotating the drum forward and in reverse, an opening rubber is driven in synchronization before and after the drum starts rotating in reverse, and only an outside of the main sheet is carried in forward rotation direction. Thus only the outside part of the main sheet put between the drum and a main sheet holding member can be drawn out and opened at the rear end part, and contents can be inserted. Accordingly, as the selection range of construction is widened and subject contents can be finely structured, significant labor-saving comparing with conventional manual and machine works can be achieved.
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