Patent ID: 8727689

Claim:
A paper-sheet-handling apparatus that performs a binding processing on a bundle of paper-sheets by passing a spiral coil through plural holes for binding which are perforated on predetermined portions of each of the paper-sheets, the bundle of paper-sheets bundling the paper-sheets, the apparatus comprising: a frame; a rotating guide part that is rotatable relative to the frame and is movable linearly relative to the frame in a first direction that intersects with the spiral coil advancing along a coil advance direction, rotates the spiral coil passing through the plural holes of the bundle of paper-sheets, and guides the spiral coil to feed it in the coil advance direction, wherein the rotating guide part comprises a rotation member having a cylindrical shape, which rotates to feed the spiral coil in the coil advance direction; a first screw guide part that is movable linearly relative to the frame in a second direction that intersects with the first direction and intersects with the spiral coil advancing along the coil advance direction and guides and conducts a forward end of the spiral coil fed by the rotating guide part in the coil advance direction into the holes of the bundle of paper-sheets, wherein the first screw guide part has an edge that is parallel to the rotation member of the rotating guide part and at which the first screw guide part is provided with plural projections that are uniformly spaced apart along said edge of the first screw guide part; and a control part that receives diameter-of-coil-setting information for setting a diameter of a coil of the spiral coil and controls positions of the rotating guide part and the first screw guide part, based on the diameter-of-coil-setting information; wherein the coil advance direction is along said edge of the first screw guide part; and wherein the rotating guide part includes: a rotation shaft rod to which the rotation member is attached; wherein the rotation shaft rod and the rotation member attached thereto are rotatable relative to the frame about an axis that is parallel to the coil advance direction; and wherein the frame comprises first and second side plates and the apparatus comprises a paper-sheet-mounting base located between the first and second side plates for supporting the bundle of paper-sheets, the first and second side plates are formed with first and second slot-form openings respectively, and first and second opposite ends of the rotation shaft rod are fitted in the first and second slot-form openings respectively, allowing linear movement of the rotation member relative to the frame in said first direction.