JP2010150002A - Finisher with saddle stitch stapler - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a finisher with a saddle stitch stapler of simple structure stacking a plurality of sheets by placing them on a sheet receiver in order after marking a fold thereon. <P>SOLUTION: This finisher with a saddle stitch stapler folds central parts of multiple sheets 3 stackedly stocked, and staples them along the folds. After folding the central part of each sheet 3 and pushing the sheet 3 into a clearance between folding rollers 11 to mark a fold, the sheets 3 having the folds are dropped in a V-shaped state onto the V-sdhaped sheet receiver 6 in order and stacked, and the stackely stocked sheets 3 are stitched by the stapler along the folds. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a saddle-stitched stapler-mounted finisher for forming a crease at the center of a plurality of sheets processed by a copying machine or the like and binding the staples along the folds.

  Conventionally, a finisher equipped with a saddle stitching stapler that staples the center of the paper with a saddle stitching stapler after copying a plurality of papers with a copying machine such as a booklet or a catalog is driven out from a driver unit and a driver unit. The clincher unit that clinches the staples is separated vertically, the paper is passed between the driver unit and the clincher unit, and the central portion of the paper is bound by the stapler.

By the way, if the number of sheets is 20 or less, the sheet bundle can be folded at once after saddle stitching. However, if it is 20 sheets or more, it is difficult to crease the sheets at once. Are conveyed and stacked on a reverse V-shaped sheet receiver generally called a bag, and are bound by a driver unit and a clincher unit arranged above and below the sheet receiver.
JP 2006-219296 A

  However, the conventional finisher has a complicated sheet conveyance path for placing the sheet on the sheet receiver. Also, when a plurality of sheets are bound and then discharged from the sheet receiver, the mechanism and discharge path are complicated in order to prevent the staple leg from being caught.

  It is an object of the present invention to provide a saddle stitching stapler mounting finisher that can solve the above-described problems and can be placed and stacked on a sheet receiver sequentially after a plurality of sheets are creased with a simple structure. And

  In order to solve the above problems, the invention according to claim 1 is a saddle stitching stapler mounting finisher in which a central portion of a large number of sheets stocked in a stacked state is folded and stapled along the folds. Is pushed between the folding rollers by a folding blade to make a crease, and then the creased paper is sequentially dropped in a V-shape on a V-shaped paper tray and stacked, and the creases of the paper stocked in the stacked state are stacked. It is characterized by being stapled along.

  According to a second aspect of the present invention, in the first aspect, each of the sheets is creased by being pushed between the two rollers with a folding blade from above a folding roller in which two rollers are arranged horizontally. The sheets are naturally dropped in a V-shape on a V-shaped sheet receiver and stacked, and stapled along the folds of the sheets stocked in a stacked state.

  According to a third aspect of the present invention, in the first aspect, the respective sheets are creased by being pushed between the two rollers by a folding blade from above a folding roller in which two rollers are arranged horizontally, and the rollers are reversed. Rotating and retracting the folding blade to fold the V-shaped paper with creases on the inverted V-shaped paper tray in order to be stacked and stapled along the folds of the paper stocked in the stacked state It is characterized by.

  According to a fourth aspect of the present invention, in the first aspect, each of the sheets is folded before a folding roller in which two rollers are arranged one above the other, and the folded portion is pushed between the two rollers by a folding blade. In addition, the creased paper is opened in a V-shape, and is then spontaneously dropped and laminated on a V-shaped paper receptacle, and is then stapled along the folds of the paper stocked in the laminated state.

  According to a fifth aspect of the present invention, in the first aspect, the third roller is disposed so as to come into contact with and separate from the upper roller of the paper feed roller constituted by two rollers arranged vertically. A folding roller is sometimes formed, and a sheet guide plate for guiding the feeding of each sheet is arranged on one side of the sheet feeding roller, and a guide on which the leading end of the sheet abuts on the extension of the sheet guiding plate on the other side. When the central portion of each sheet is fed along the sheet guide plate to the middle of the folding roller with the sheet feeding roller in a state where the third roller is separated from the third roller, The folding blade is pushed by a folding blade between folding rollers constituted by bringing the roller into contact with the upper roller, and then the third roller is separated from each other, and the sheets are fed horizontally by a sheet feed roller. The leading end side of the feed is moved and guided downward along a guide provided obliquely on the extension of the paper guide plate and engaged with a stopper provided on one side of the inverted V-shaped paper receiver. The central portion of the paper is lifted upward along the guide, the rear end of the paper feed is engaged with a stopper provided on the other side of the paper receiver, and the stopper is operated up and down to move the paper to the paper. It is characterized in that it is sequentially dropped onto the receiver and stacked, and the paper receiver is moved to the saddle stitching stapler and stapled along the folds of the paper stocked in the stacked state.

  According to the present invention, the central portion of each paper is pushed between the folding rollers by the folding blade to make a crease, and then the creased paper is sequentially dropped and stacked on the V-shaped paper receptacle. Thus, with a simple structure, a plurality of sheets can be creased and then sequentially placed in a V shape on the sheet receiver and stacked. For this reason, a bundle of sheets that are saddle-stitched can be obtained by stapling along the folds of the sheets stocked in a stacked state.

  According to the second aspect of the present invention, each of the sheets is creased by pressing between the two rollers with a folding blade from above a folding roller in which two rollers are arranged horizontally, and the creased sheet is V Since the V-shaped paper holder is naturally dropped and stacked in sequence on the letter-shaped paper tray and stapled along the folds of the paper stocked in the stacked state, the folding roller creases the paper and then drops it as it is. Therefore, a complicated paper transport mechanism is not necessary.

  According to a third aspect of the present invention, the paper is pushed between the two rollers with a folding blade from above the folding roller formed by horizontally arranging the two rollers, and the roller is rotated in the reverse direction. Because the folding blade is retracted and the creased V-shaped paper is sequentially dropped onto the inverted V-shaped paper tray and stacked, and stapled along the folds of the paper stocked in the stacked state. A complicated paper transport mechanism is unnecessary.

  According to the invention according to claim 4, each sheet is folded before the folding roller in which two rollers are arranged one above the other, and the folded portion is pushed between the two rollers with a folding blade to make a crease. In a state where the sheet is opened in a V-shape with a mark, the sheets are naturally dropped onto the V-shaped sheet receiver and stacked one after another, and the sheet receiver is moved to the saddle stitch stapler and stapled along the folds of the sheets stocked in the stacked state. Since binding is performed, the sheet receiver moves and moves to the binding position of the stapler, so that the core for binding the saddle stitching stapler and the sheet can be easily aligned.

  According to the fifth aspect of the present invention, the third roller is disposed so as to be in contact with and separated from one side of the upper roller of the sheet feed roller constituted by two rollers arranged vertically, and is folded when the contact is made. A sheet guide plate that guides the feeding of each sheet is arranged on one side of the sheet feed roller, and a guide that contacts the leading end of the sheet on the extension of the sheet guide plate is inclined on the other side. And when the third roller is moved away from the center of the folding sheet along the sheet guide plate by the sheet feeding roller to the middle of the folding roller. The folding blade is pushed between the folding rollers formed in contact with the upper roller by the folding blade to make a crease, and then the third roller is moved away, and the paper is fed in the horizontal direction by the paper feed roller. The leading end side of the paper is moved and guided downward along a guide provided obliquely on the extension of the paper guide plate and engaged with a stopper provided on one side of the inverted V-shaped paper receiver, and the central portion of the paper Is lifted upward along the guide, the rear end of the paper feed is engaged with a stopper provided on the other side of the paper receiver, and the stopper is operated up and down to sequentially drop the paper onto the paper receiver. Since the paper receiver is moved to the saddle stitch stapler and stapled along the folds of the paper stocked in the stacked state, it is an inverted V-shaped paper receiver. Can be stocked on paper trays by natural fall. Further, since the creased paper is dropped as it is and stocked in the paper receiver, the feeding direction is one direction, and a complicated paper transport mechanism is not required. Further, since the sheet receiver moves instead of the stapler and the binding position can be changed, it is easy to align the core for binding the saddle stitching stapler and the sheet.

  1A to 1D show a finisher mounted with a saddle stitching stapler for stapling a plurality of sheets copied by a copying machine (which may be a printing machine or the like) 1, and the sheets copied in the copying machine 1 are shown in FIG. 3 is sequentially conveyed to the finisher, stocked in a stacked state at a predetermined position, and bound by a saddle stitch stapler mounted on the finisher.

  The finisher includes a sheet guide plate 4 that receives the copied sheet 3 conveyed from the copying machine 1, a crease mechanism 5 that folds the sheet 3, and a sheet receiver 6 that stocks the creased sheet 3. A saddle stitch stapler 7 disposed on the sheet receiver 6 is disposed.

  The sheet guide plate 4 is formed in a horizontal plate shape, one end is provided in the vicinity of the sheet 3 discharge port of the copying machine 1, and the other end is provided with a stopper 8a. The sheet 3 is conveyed from the one end to the other end by an appropriate feeding means (not shown) and positioned when it hits the stopper 8a at the other end. The position of the stopper 8a is movably provided depending on the size of the paper 3. An opening 10 is formed at a position corresponding to the center of the sheet 3.

  The crease mechanism 5 includes a folding roller 11 disposed below the opening 10 of the paper guide plate 4 and a folding blade 12 disposed above. The folding roller 11 includes two rollers 11a and 11b provided horizontally, and contact surfaces of the two rollers 11a and 11b are provided so as to correspond to the center position of the sheet 3 positioned by the stopper 8a. The two rollers 11a and 11b rotate in the reverse direction so that the contact surface portions face downward. Further, the folding blade 12 is arranged at the upper center of the folding roller 11 so as to be movable up and down.

  The folding roller 11 and the folding blade 12 are preferably formed so as to be longer than the width of the paper 3, but the width of the folding blade 12 may be such that the paper 3 can be pushed into the folding roller 11. It may be smaller than the width of.

  Next, the sheet receiver 6 is formed in a V shape having a substantially right angle, and is generally called a bag, and has an opening 13 at the bottom. The sheet receiver 6 is provided to be movable to a position directly below the folding roller 11 and a position corresponding to the next saddle stitching stapler 7 by moving in parallel with the axial direction of the folding roller 11.

  The saddle stitching stapler 7 includes a clincher unit 14 and a driver unit 15 provided above and below the opening 13 of the sheet receiver 6. Although not shown, the driver unit 15 drives the staples upward with a driver plate, and the clincher unit 14 folds and binds the leg portions of the staples that have been driven out. The saddle stitching stapler 7 is disposed not at the bottom of the folding roller 11 but at a position shifted in the axial direction of the folding roller 11.

  Next, the operation mode of the finisher having the above configuration will be described. First, as shown in FIG. 1A, the copied paper 3 is fed along the paper guide plate 4, passes over the folding roller 11 and hits the stopper 8a and stops. Next, as shown in FIG. 5B, the folding blade 12 moves downward to push down the central portion of the paper 3 and push between the two rollers 11a and 11b of the folding roller 11, and then retreats upward. To do. A crease is formed at the center of the sheet 3 pushed between the two rollers 11a and 11b, and then falls through the space between the two rollers 11a and 11b. As shown in FIG. 3C, the sheet receiver 6 is disposed below the folding roller 11, so that the folded sheet 3 is placed on the sheet receiver 6. Similarly, as shown in FIG. 4D, the copied sheet 3 falls in a V shape onto the sheet receiver 6 and is stocked in a stacked state in which creases are aligned.

  When a predetermined number of sheets 3 are collected on the sheet receiver 6, the sheet receiver 6 slides between the clincher unit 14 and the driver unit 15 of the saddle stitching stapler 7. After the movement, the stapler is actuated, and staples are driven into the folds and bound.

  After the binding, the sheet receiver 6 moves again to the lower part of the folding roller 11. The sheet 3 moves along the sheet receiver 6 and is discharged, and the edges are cut to adjust the appearance.

  According to the above configuration, since the central portion of each sheet 3 is pushed between the folding rollers 11 to make a crease, the creased sheets are sequentially dropped and stacked on the V-shaped sheet receiver 6. With a simple structure, a plurality of sheets can be folded and sequentially placed on the sheet receiver 6 and stacked. For this reason, a bundle of sheets that are saddle-stitched can be obtained by stapling along the folds of the sheets 3 stocked in a stacked state.

  Next, FIGS. 2 to 5 are other forms of the finisher, and the basic positional relationship is the same as that of FIG. 1, but in this case, the folding roller 11 is disposed above the paper guide plate 4 and is folded. The blade 12 is disposed in the lower part thereof. The folding blade 12 is provided so as to be movable in the axial direction of the folding roller 11. The paper receiver 6 is formed in an inverted V shape. The driver unit 15 is disposed above the sheet receiver 6, and the clincher unit 14 is disposed below the sheet receiver 6. Other configurations are the same as those shown in FIGS.

  The operation mode of the finisher having the above configuration will be described. First, as shown in FIG. 2, the copied paper 3 is fed along the paper guide plate 4, passes over the folding roller 11 and stops against the stopper 8b. Next, the folding blade 12 moves upward to push up the central portion of the sheet 3 and push it between the two rollers 11a and 11b of the folding roller, and then moves downward as shown in FIG. Then, it moves in the axial direction of the folding roller 11 and retracts. A crease is formed at the center of the sheet 3 pushed between the two rollers 11a and 11b. After the folding blade 12 is retracted, the two rollers 11a and 11b of the folding roller 11 rotate in reverse to release the paper 3. As a result, the sheet 3 falls and is placed on the sheet receiver 6. Similarly, the creased sheet 3 falls onto the sheet receiver 6 and is stored in a stacked state in which creases are aligned.

  When a predetermined number of sheets 3 accumulate on the sheet receiver 6, the sheet receiver 6 slides between the clincher unit 14 and the driver unit 15 of the saddle stitching stapler 7 as shown in FIG. After the movement, the stapler is actuated, and staples are driven into the folds and bound. Thereafter, the sheet receiver 6 moves to the lower part of the folding roller 11 again. The sheet 3 moves along the sheet receiver 6 and is discharged, and the edges are cut to adjust the appearance.

  According to the above configuration, the creased paper 3 is dropped as it is and stocked in the paper receiver 6, so that a complicated paper transport mechanism is not required.

  6 to 9 show still another form of the finisher, and the basic positional relationship is the same as that shown in FIGS. 1A to 1D and FIGS. Eleven rollers 11 a and 11 b are arranged side by side so as to close the opening 10 formed at the end of the sheet guide plate 4. A stopper 8c is provided at the end of the paper guide plate 4 on the copier 1 side. A small opening 16 is formed at a position closer to the opening 10 than the intermediate portion of the paper guide plate 4. Two temporary folding plates 17a and 17b that are curved are arranged at intervals above and below the small opening 16, respectively. A guide plate 18 is disposed between the adjacent upper and lower temporary folding plates 17a and 17b. The temporary folding plates 17a and 17b are provided so as to be movable upside down, and the guide plate 18 is provided so as to be able to retreat from the paper guide plate 4 by rotating around a support shaft 19 at the upper end.

  The folding blade 12 is horizontally arranged in a state of floating on the upper surface of the paper guide plate 4. The folding blade 12 is configured to be movable along the paper guide plate 4 to the folding roller 11 side.

  The operation mode of the finisher having the above configuration will be described. First, as shown in FIG. 6, when the copied paper 3 is fed on the paper guide plate 4 along the upper surface of the folding blade 12, the top and bottom of the paper 3 are Since the U-shaped guide wall is formed by the temporary folding plates 17a and 17b and the guide plate 18, the fed paper 3 is folded back by the guide wall, and the paper guide plate 4 and the folding blade 12 are interposed. Move in the opposite direction to the feed direction. Then, as shown in FIG. 7, the tip hits the stopper 8c and stops and is positioned.

  Next, the guide plate 18 rotates in the clockwise direction about the support shaft 19 to open the folding portion that is the central portion of the paper 3 and at the same time, the temporary folding plates 17a and 17b move up and down to fold the paper 3 back. Insert the crease so that it is easy to make a crease. Further, the folding blade 12 passes between the temporary folding plates 17 a and 17 b and pushes the paper 3 between the folding rollers 11. Thereafter, the folding blade 12 returns to the original position.

  The sheet 3 passes between the two rollers 11a and 11b of the folding roller 11 and is discharged from the sheet guide plate 4 with a crease as shown in FIG. Is done.

  When a predetermined number of sheets 3 accumulate on the sheet receiver 6, the sheet receiver 6 slides between the clincher unit 14 and the driver unit 15 of the saddle stitching stapler 7 as shown in FIG. 9. After the movement, the stapler is actuated, and staples are driven into the folds and bound. Thereafter, the sheet receiver 6 moves to the lower part of the folding roller 11 again. The sheet 3 moves along the sheet receiver 6 and is discharged, and the edges are cut to adjust the appearance.

  According to the above configuration, since the sheet receiver 6 moves and moves to the binding position of the saddle stitching stapler, the cores for binding the clincher unit 14, the driver unit 15, and the sheet 3 of the saddle stitching stapler can be easily aligned.

  Next, FIGS. 10 to 14 show other forms of finishers. At the end of the paper guide plate 4, a paper feed roller comprising a driving roller (upper roller) and a driven roller (lower roller) 11c is provided. The driving roller 11a is further arranged in parallel with the third roller 11b. The third roller 11b is provided so as to be rotatable about a support shaft 19a between a position in contact with the driving roller 11a horizontally and a position in which the third roller 11b is separated from the drive roller 11a. Therefore, the folding roller 11 is configured by the contact between the driving roller 11a and the third roller 11b. The folding blade 12 is provided so as to be movable up and down so that it can be inserted between the folding roller 11b and the driving roller 11a.

  In addition, an oblique first paper guide 20 is provided on the extension of the paper guide plate 4, and the first paper guide 20 is paired with the second paper guide 21 so as to form a C-shape spreading downward. Has been. The position of the first paper guide 20 is determined according to the smallest type of paper to be fed. Further, the position first sheet guide 20 can be rotated around the axis on the back side. An inverted V-shaped sheet receiver 6 is disposed below the first sheet guide 20 and the second sheet guide 21. A clincher unit 14 is fixed at the center of the sheet receiver 6. Note that stoppers 8d and 8e for receiving the edge of the sheet 3 are arranged on both sides of the clincher unit 14 so as to be movable up and down.

  The operation mode of the finisher having the above configuration will be described. First, as shown in FIG. 10, when the copied paper 3 is further fed on the paper guide plate 4 by the paper feed rollers 11a and 11c, the first paper guide ahead of it. 20 is guided to move downward. Since the copier side knows in advance what size paper is to be sent, the feeding amount is determined according to the size of the paper. When the central portion of the paper 3 reaches a position corresponding to the folding blade 12 after being fed by a predetermined amount, the paper feed rollers 11a and 11c stop rotating and the paper 3 also stops moving. At this time, the central portion of the sheet 3 is located between the folding roller formed by the third roller 11b and the driving roller 11a that have come down, so that the sheet 3 is moved by the folding blade 12 as shown in FIG. Then, the sheet 3 is pushed between the third roller 11b and the driving roller 11a, which are turned down from above, and a crease is formed at the center of the sheet 3.

  When the sheet 3 is creased, the folding blade 12 and the third roller 11b return to their home positions as shown in FIG. The creased paper 3 is further fed again by the paper feed rollers 11a and 11c. The leading edge of the paper 3 flows downward along the first paper guide 20, and the leading edge of the paper 3 hits the stopper 8d and stops. However, since the paper feed rollers 11a and 11c continue to rotate, the feed of the paper 3 does not stop, so that the creased central portion is pushed upward and enters between the first paper guide 20 and the second paper guide 21. . When the end of the sheet 3 exceeds the sheet feed rollers 11a and 11c, the end falls and engages with the other stopper 8e, as shown in FIG.

  When both ends of the sheet 3 are engaged with the stoppers 8d and 8e, as shown in FIG. 13, the stoppers 8d and 8e are moved downward, the sheet 3 is also lowered simultaneously, and the fold is engaged with the apex of the sheet receiver 6. Stay away. Then, the stoppers 8d and 8e move in an arc shape as indicated by an arrow P and return to the original position again.

  By repeating the above operation, the plurality of sheets 3 are stacked on the sheet receiver 6 in a stacked state in which creases are aligned.

  When a predetermined number of sheets 3 are stocked on the sheet receiver 6, the sheet receiver 6 slides between the driver unit 15 and the clincher unit 14, and the stapler is actuated to drive staples into the folds. After the binding, as shown in FIG. 14, when one of the stoppers 8e moves upward, one of the bundles of bound sheets 3 is lifted and the central portion pushes the lower part of the first sheet guide 20, so that the first The paper guide 20 is rotated around an axis to serve as a guide for the crease portion of the paper 3, and moves and guides the paper 3 to be pushed into the discharge rollers 22 and 23. The paper 3 is fed in the discharge direction by the discharge rollers 22 and 23, and the edges are further cut to adjust the appearance.

  According to the above configuration, since the creased paper 3 is dropped as it is and stocked in the paper receiver 6, the feeding direction is one direction, and a complicated paper transport mechanism is not required.

  Since the paper receiver 6 has an inverted V shape, the creased paper 3 can be stocked on the paper receiver 6 by natural fall.

  Further, since the sheet receiver 6 is moved instead of the stapler and the binding position can be changed, the cores for binding the clincher unit 14, the driver unit 15 and the sheet can be easily aligned.

  In addition, the form until it cuts after making it fold a sheet | seat 3 after conveying it to a predetermined position and binding it is demonstrated based on FIG.

  In the figure, the sheet 3 with the creases one by one is sent to the sheet receiving portion 24 and is positioned by hitting the stopper 8f. The stopper 8f moves to push out the paper 3. The extruded sheet 3 passes between the guide plates 28, enters between the V-shaped sheet receiver 6 of the clincher unit 14 of the stapler attached according to the angle of the guide plate 28 and the driver unit 15, and stops at the stopper 8g. Is positioned. Here, when a predetermined number of sheets 3 are stocked and are in a stacked state, the stapler operates and is bound at that position.

  Note that the attachment angle of the stapler, that is, the driver unit 15 and the clincher unit 14 can be freely changed to other than 90 ° according to the angle of the guide plate 28.

  When the sheet 3 is bound, the stopper 8g slides away while moving downward. At this time, when the stopper 8g slides, the binding portion of the sheet 3 is lifted from the sheet receiver 6, and when the stopper 8g moves downward and passes through the driver unit 15, the sheet 3 is rotated by 90 ° and dropped. It is received by the roller 25.

  When the sheet 3 is received by the receiving roller 25, the pushing blade 27 pushes out the crease of the sheet 3, and is sent to the refolding roller 26 ahead. The sheet 3 creased by the refolding roller 26 is discharged as it is and cut.

  According to the above configuration, the flow of the sheet 3 can be simplified, and the depth size of the finisher can be reduced by the attachment angle of the stapler.

(A)-(d) is explanatory drawing which shows the flow of the action | operation by the finisher which concerns on this invention. Overview of another form of finisher crease mechanism Operational explanatory diagram of the above mechanism Explanatory drawing showing a state in which creased paper falls to the paper tray Explanatory drawing showing a state in which the paper tray has moved to the clincher unit of the saddle stitching stapler Overview of the finisher crease mechanism Operational explanatory diagram of the above mechanism Explanatory drawing showing a state in which creased paper falls to the paper tray Explanatory drawing which shows the state which the paper tray moved to the saddle stitch stapler Overview of the finisher crease mechanism Operational explanatory diagram of the above mechanism Explanatory drawing showing a state where a creased paper is falling to the paper tray Explanatory drawing showing a state in which creased paper has fallen to the paper tray Explanatory drawing which shows the state which the receiver by which a sheet | seat is conveyed to the following process after being bound moved to the saddle stitch stapler Flow chart showing a mode of conveying creased paper to the cutting process

Explanation of symbols

3 Paper 6 Paper receiving 11 Folding roller

Claims (5)

In the finisher with saddle stitching stapler that folds the center of many sheets stocked in a stacked state and staples along the crease,
After pressing the center of each paper sheet between the folding rollers using a folding blade and making a crease, the creased paper is sequentially dropped in a V-shape on the V-shaped paper tray and stacked, and then stocked in a stacked state. A finisher mounted with a saddle stitching stapler, wherein the finisher is stapled along a crease of a printed sheet. Each of the above papers is creased by pressing between the two rollers with a folding blade from above a folding roller in which two rollers are arranged horizontally, and the creased paper is naturally placed in a V-shape on a V-shaped paper tray. The saddle stitch stapler mounting finisher according to claim 1, wherein the finisher is stapled along a fold of a sheet stocked in a stacked state by dropping and stacking. Each sheet is creased by pressing it between the two rollers with a folding blade from above a folding roller in which two rollers are arranged horizontally, and rotating the roller in reverse and retracting the folding blade. 2. The saddle stitching according to claim 1, wherein the V-shaped paper is naturally dropped and stacked sequentially on an inverted V-shaped paper tray, and is stapled along the folds of the paper stocked in a stacked state. Finisher with stapler. Each of the sheets is folded before the folding roller in which two rollers are arranged one above the other. The folded portion is pushed between the two rollers by a folding blade to make a crease, and the folded sheet is opened in a V shape. 2. The paper sheet according to claim 1, wherein the sheets are naturally dropped onto a V-shaped sheet receiver in order and stacked, and the sheet receiver is moved to a saddle stitching stapler and stapled along the folds of the sheets stocked in the stacked state. Finisher with saddle stitching stapler described in 1.   A third roller is disposed on one side of the upper roller of the paper feed roller, which is composed of two rollers arranged vertically, so as to be able to contact and disengage, and a folding roller is configured at the time of contact. A sheet guide plate for guiding the feeding of each sheet is arranged on one side, and a guide on which the leading end of the sheet comes into contact with the extension of the sheet guide plate is provided obliquely on the other side, and the third roller is separated. In this state, the third roller is brought into contact with the upper roller when the central portion of each sheet is fed along the sheet guide plate to the middle of the folding roller by the sheet feeding roller. After the crease is pushed between the folding rollers by the folding blade, the third roller is separated, the respective sheets are fed in the horizontal direction by the sheet feeding roller, and the leading end side of the feeding is an extension of the sheet guide plate. And is moved downward along a guide provided obliquely to engage with a stopper provided on one side of the inverted V-shaped paper receiver, and the central portion of the paper is lifted upward along the guide. The rear end of the paper feed is engaged with a stopper provided on the other side of the paper receiver, and the stopper is operated up and down to sequentially drop and stack the paper on the paper receiver. The saddle-stitched stapler-mounted finisher according to claim 1, wherein the finisher is stapled along a fold of a sheet stocked in a stacked state by being moved to a stapler.

Images