부산대학교 도서관

A paper-sheet-handling apparatus 100, as shown in FIG. 1, is provided with a coil-forming mechanism 20 that forms a spiral coil 11 for binding the bundle of paper-sheets from a wire rod 1 drawn out of a wire rod cartridge 10, and a binding mechanism 40 that performs the binding processing on the bundle of paper-sheets by the spiral coil 11 obtained therefrom. The coil-forming mechanism 20 is provided with a main body part 21 that includes a wire rod insert port 274 and a coil discharge port 296, a coil-forming part 28 that includes plural species of sections each like an arc of a circle for setting diameters of the coils and is rotatably attached to the main body part 21, a wire-rod-dispatching part 22 that dispatches the wire rod 1 having a predetermined thickness from the wire rod insert port 274 with it coming into contact with any one of the sections each like the arc of the circle, and a pitch-adjusting mechanism 29, which is mounted near the coil discharge port of the main body part 21, that adjusts a pitch of the spiral coil 11 formed by the selected section like the arc of the circle and dispatched from the wire-rod-dispatching part 22.