| 摘要 |
To provide a sheet binding device and a binding method capable of binding stably sheets independently of sheet shape dimensions. By feeding a paper strap K by strap feed rollers 24, tape catcher 21, in a state that the paper strap K is clamped by them, rotate along a locus R shown in the drawing in a direction of an arrow B1 shown in the drawing. In synchronization with this rotation, one hundred sheets PB are conveyed from left to right in a direction of an arrow A2 shown in the drawing. By this series of operations, the paper strap K is wound round the one hundred sheets PB. A strap holding member 26 has a contact portion 26a at its end and the contact portion 26a is permitted to make contact with the paper strap K, and a cylindrical body.is rotated, thus an angle ¸ formed between the one hundred sheets PB and the paper strap K can be adjusted. For example, even if the angle ¸ of the binding portion of the one hundred sheets is a large value, it is made equal to an allowable value ¸S or smaller by the strap holding member 26, thus curling of the one hundred sheets PB can be prevented. |
