APPARATUS FOR PERFORMING BINDING PROCESSING ON SHEETS AND POST-PROCESSING APPARATUS PROVIDED WITH THE SAME

摘要

To provide a sheet binding processing apparatus for enabling strong binding strength or weak binding strength to be selected in a neat sheet posture to perform binding processing in applying narrow pressure to a plurality of sheets with concavo-convex-shaped pressurizing surfaces to perform the binding processing, in positioning sheets in a binding position for press-binding the sheets with the concavo-convex-shaped pressurizing surfaces that mutually mesh to perform the binding processing, it is possible to set an engagement area of the sheets and the pressurizing surfaces in two or more different steps with positioning references or by shifting a position of a binding processing section in the direction for passing over an edge side of the sheets to perform the binding processing.

主权项

1. A sheet binding processing apparatus comprising:
a sheet support section adapted to support a plurality of sheets; a position regulating section adapted to position a sheet in a predetermined position of the sheet support section; a binding processing section adapted to perform binding processing on the sheets on the sheet support section; and a control section adapted to control the position regulating section and the binding processing section, wherein the binding processing section is comprised of pressurizing members having a pair of pressurizing surfaces to apply narrow pressure to the sheets from frontside and backside directions, and a driver adapted to cause at least one of the pressurizing surfaces to reciprocate between a waiting position separated from the sheets and an actuation position for pressurizing the sheets,the pair of pressurizing surfaces are formed by arranging a plurality of tooth forms in a convex shape and a concavo shape that mutually mesh with a predetermined mesh width in a predetermined length, andthe control section shifts the pressurizing surfaces by moving at least one of a positioning reference of the position regulating section and a binding position of the binding processing section to a position in a direction for passing over an edge side of the sheets to perform binding processing to enable an engagement area of the pressurizing surfaces and the sheets to be set in two or more different steps.