Abstract: A stapler includes a staple striking-out unit, a staple leg bending unit, and a connector that connects the staple striking-out unit and the staple leg bending unit. The staple leg bending unit includes a clincher having a guide surface for bending the staple legs, and a clincher guide having a sandwiching portion. The clincher guide is configured to move in a first direction to displace a distance between the guide surface and the sandwiching portion. The clincher is capable of being located at a lower end position where the guide surface is farthest from the sandwiching portion in the first direction. The lower end position is a position where a tip ends of the staple legs are in contact with the guide surface and a gap is formed between an upper surface of the sheet sandwiched by the sandwiching portion and a staple shoulder portion of the staple.

Abstract: The present invention relates to a sheet processing apparatus comprising, sheet stacking means for stacking sheet, sheet binding means for binding a sheets and conveying means for conveying the sheet stacked on the sheet stacking means so as to change sheet binding positions. According to the present invention, the sheet binding means, the conveying means can be used commonly, so that the costs for parts can be reduced, and so that a compact sheet processing apparatus can he provided in terms of apparatus capacity.

Abstract: An image forming system with a finisher connected to a copying machine via an inverting unit. The finisher has a stapling section which staples sheets stacked on a tray with a stapler and a folding section which folds a sheet with folding rollers. In a confidential mode, a sheet on which an image with confidential or private contents has been copied is transported to the finisher with its image-formed side facing down and is folded in two with the image inside. Then, in the stapling section, the folded sheet is stapled along a side opposite the fold.

Abstract: A sheet post processing machine has a first shelf for assembling a number of sheets without causing any inhibition to the speed of sheet delivery from a host printer or copier, and the assembled sheets are dumped from the first shelf to a second shelf at which the sheets are collected in sets, jogged into edge alignment, stapled at the corners or along an edge, the sets are offset from one another, and finally, dumped from the second shelf onto a stacker tray.

Abstract: A sheet processing apparatus for stapling multiple sheets with a stapler and delivering the sheets in folio, includes a staple hitting device, a stapler having an anvil opposed to the staple hitting device with respect to a sheet path and a shifting device for shifting the sheet so as to escape a staple from a groove on the anvil after the sheet is stapled by drive of the staple hitting device.

Abstract: A finisher including a tray to enable the stacking of sheets; a leading end stopper, which projects from an upper surface of the tray, to contact and align an end face of a sheaf of sheets stacked in the tray; and a sheaf-conveying device, having a pair of rollers, to selectively nip (or engage) and convey a sheaf of sheets from the tray. Following an engagement by the sheaf-conveying device, the rollers are severally rotated to evenly convey an engaged sheaf of sheets while better protecting the alignment and appearance of such sheaf.

Abstract: Apparatus for fastening and folding stacks of paper sheets includes a stitching unit adapted to collect staples and insert them in the sheet stack while a folding knife simultaneously drives a section of the sheet stack into a gap of the stitching unit to fold the stack. The inserting edge of the folding knife provides the die for bending the inserted staple into a secured configuration. The folding knife and the stitching unit gap are preferably mounted on planet wheels of coordinated planetary gears so that the knife and the gap periodically align to fold and fasten the sheet stacks.

Abstract: An approved method and apparatus for forming clasp envelopes. The apertures extending through the top and bottom panels of the envelope body and the clasp receiving aperture extending through the top flap are formed after the envelope has been completely assembled save for the folding of the top flap for shipping. This ensures that the apertures extending through the top and bottom panels of the envelope body are in perfect registration. Reinforcement tape is applied on the top flap of the envelope, through which the aperture in the top flap extends, after the envelopes have been cut from the continuous strip of envelope blanks. This ensures that the cutting device used to sever the continuous strip into individual envelopes must cut only paper, thus improving longevity of the cutting device, and allows a single punch device to be used to form the hole and the apertures. Additionally, the method and apparatus employ an improved device for applying the clasp to the back panel of the envelope body.

Abstract: There is provided a method and apparatus for the attachment of clasps on letter envelopes incorporated into a machine for the manufacture of letter envelopes. The clasps, at the conclusion of the folding operation of the envelope machine, following the folding down of the lateral flaps of the envelope, are attached to the newly formed back sides of the letter envelopes. The apparatus is arranged for this purpose at the downstream end of a lateral folding mechanism of the envelope machine and includes a stationary opposing support plate.

Abstract: A method of forming a folder of documents and a folder for putting the method into effect. The folder has folds or creases defining a spine between a front and a back cover of the folder, and side folds spaced from the spine folds. An adhesive strip covered with a protective film is applied to the interior of the folder along the spine in a region delimited by the side folds. In use the protective film is removed, a sheaf of documents, preferably stapled together, is permanently secured in the folder so that documents cannot be removed without detection.

Abstract: A binding apparatus includes a plurality of feed stations (10, 12, 14) which stack sheets on an inclined conveying surface (16). A conveyor (20) continuously conveys the stacks along a workpath (w) to a stitcher assembly (B). The stitcher assembly includes a frame assembly (100) having a stitcher head mounting bar (130) and a clincher mounting bar (136) on which stitcher heads and clinchers are mounted in cooperative relationship. A power take-off assembly (54) rotates a stitcher assembly transverse drive shaft (200) in coordination with advancement of the conveyor. The stitcher assembly transverse drive shaft rotates lever arms (210, 212) which are connected by connecting links (214, 216), with a stationary structure such that the frame assemby is cyclically reciprocated longitudinally along the workpath.

Abstract: In an apparatus for closing about the mouth of a filled sausage casing a closure clip 8 having two legs, the apparatus including a plate 1 provided with a clip guideway 6,7, means on the plate for gathering the casing 2,3, a closure die 17, a punch 9 for advancing a clip through the guideway about the gathered casing and against the die to cause the clip to be closed about the casing, and means 16 for introducing a loop 15 of flexible material so that the loop is locked to the sausage casing by the closure of the clip, whereby the sausage may be hung by the loop, the improvement wherein said loop introducing means comprises means for forming loops from a length of flexible material, and holder means 14 for successively engaging each loop and operatively associated with the punch so as to advance the loop as the punch and clip advance and to bring the loop into such position intercepting the guideway that one leg of the clip passes through the loop, whereupon the holder means is retracted and the clip proceeds