SHEET PROCESSING DEVICE, IMAGE FORMING DEVICE PROVIDED WITH THE SAME, AND SHEET BONDING METHOD

摘要

Provided is a sheet processing device including a carry-in path along which the paper sheet is carried in and a retreat path that branches off from the carry-in path, along which at least a part of the paper sheet stored in a stacker section is retreated in a direction opposite to a sheet conveying direction. A bonding means is disposed at a merging point between the carry-in path and retreat path. An adhesive-applied position of a preceding paper sheet is retreated to the retreat path when a next paper sheet is carried in to the stacker section, then the next paper sheet is moved to a bonding position for adhesive application. The above operations are sequentially repeated to generate a paper sheet bundle. Thus, a paper sheet bundle can be generated by bonding the paper sheets using an adhesive, so that it is possible to reduce stress to be applied to the paper sheet as compared to a case where the paper sheet bundle is bound with a metallic staple or by deforming the paper sheets themselves. Further, it is possible to comparatively reduce movement of the paper sheet applied with the adhesive to prevent the adhesive from being adhered to a portion other than the paper sheet, thereby preventing the paper sheets from being bonded to each other at a position other than a predetermined position. As a result, there can be provided a sheet processing device, that is rather small and can bond the paper sheets at a predetermined position.

主权项

1. A sheet processing device that applies an adhesive onto a paper sheet for bonding paper sheets, comprising:
a carry-in path along which the paper sheet is carried in; a stacker section that stores the paper sheet conveyed along the carry-in path; a regulating member that regulates the paper sheet stored in the stacker section; a moving member that moves the stored paper sheet; a bonding member that applies the adhesive onto the paper sheet at a bonding position; and a retreat path that branches off from the carry-in path, along which at least a part of the paper sheet stored in the stacker section is retreated in a direction opposite to a sheet carry-in direction, wherein the bonding member is disposed at a merging point between the carry-in path and retreat path, an adhesive-applied position of a preceding paper sheet is retreated to the retreat path by the moving member when a next paper sheet is carried into the stacker section, and then the next paper sheet is moved to the bonding position for adhesive application, and the above paper sheet retreat operation and adhesive application operation are repeated to generate a paper sheet bundle.