JPS619668A - Book binding device - Google Patents

Abstract

PURPOSE:To bind copies in an adequate position regardless of original sizes by fixing a stapling means and stapling respectively the copy groups in the position where said groups are stacked and in the position apart by a prescribed extent from said position according to the original sizes. CONSTITUTION:A copy stacking part 20 has a side guide 25 slidable along a shaft 24 extending in the direction perpendicular to a copy conveying direction. The copies of which the short sides are made coincident with the conveying direction and which are turned inside out are discharged into the part 20, where the copies are stacked according to the original sizes. The stacked copy paper is stapled by a satpler 36 in said position in the case of A3 and B4 original sizes and the stocked copy paper is moved by the extent predetermined according to the sizes of the copy paper from the position where the copies are stacked in the care of A4 and B5 original sizes. The copy paper is stapled in said position by the stapler 36 and are thereafter discharged to a paper discharge tray 41.

Description

TECHNICAL FIELD The present invention relates to a bookbinding device that stacks and staples copies ejected from a copying machine face down in page order.

Prior Art When a set of original documents consisting of multiple sheets is copied using a copying machine,
Conventionally, a stapler (trade name: Stapler) is used to manually staple one corner or 2.3 locations on the - side. Recently, recycling-type automatic document feeders have been used as part of office automation, and when this is used, a series of copies arranged in page order are continuously ejected from a copying machine in the required number. Therefore, if a simple bookbinding machine that can automatically staple a series of copies that are output in page order is connected to the copy output port of a copying machine, the bookbinding process will not require any manual effort. This is advantageous because it speeds up the process.

As a bookbinding device for this purpose, for example,
Japanese Patent No. 3-113047 discloses a document copying device with a copy finishing device. With this device, copies that are ejected from the copier with the copy side facing up are ejected onto a tray that is tilted toward the front, and the tip of the tray can be positioned at a variable position depending on the copy size and can be retracted from the surface of the tray. The leading edges of the stacked copies collide with a stopper, and one side edge is pushed with a pushing device to collide with a side guide whose position has been adjusted in advance according to the copy size, and the stacked copies are stacked. The paper is stapled at two locations, and then the stopper is retracted below the surface of the tray, allowing the bound copy to slide down and be received by the copy receiver.

Therefore, it is necessary to separate the main body of the stapler into which the staple is driven, and the receiving part which receives the paper and bends the needle tip penetrating the paper, which makes the device complicated and requires assembly and interaction. The disadvantage is that it takes time to adjust the position.

In addition, a bookbinding device has been proposed in which the leading edge in the copy transport direction is stapled with a stapler, and the main body and receiver of the stapler are integrated. It is necessary to bend the ejecting direction of copies perpendicular to the conveyance direction, which increases the size of the apparatus, and there are disadvantages in that even if copies are ejected without binding, it is necessary to stop them with a stapler and change the direction.

Purpose of the present invention In view of the above-mentioned drawbacks of conventionally proposed copy binding devices connected to copying machines, the present invention eliminates the need to bend the ejection direction of copies with respect to the transport direction after stapling is completed, It is an object of the present invention to provide a bookbinding device capable of binding copies of any size using a stapler provided at a certain position.

Structure In order to achieve the above object, the present invention discharges the copy onto a tray of a stacking means with the short side in the conveying direction, and makes the leading end abut against a stopper provided so as to be retractable from the upper surface of the tray.
Stack one side edge against the fixed reference guide,
A stapling means is provided to grip at least the vicinity of the front end of a group of stacked copies from the outside, and if the size of the document detected by the document detection means is the size normally used in the landscape orientation, the stapling means is provided so as to grip at least the vicinity of the front end of the group of stacked copies. The stapling means is actuated, and when the document size is a size normally used in portrait orientation, the stapling means is actuated after the group of stacked copies is fed in the conveyance direction by a predetermined amount according to the copy size. do.

The stapling operation described above can be performed with one staple.

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

The bookbinding machine 100 shown in FIG. The population section 10, which consists of a copy stack section 20, a stapling section 30, and a discharge section, is composed of an entrance upper and lower guide plate 11, a pair of 1.2 rollers 13, a population sensor 14, and a static elimination brush 15. The bookbinding apparatus is installed such that twelve receiving ports 1 are connected to a copy outlet (not shown) of the main body of the copying machine. The entrance roller pair 13 has a peripheral speed of 500, for example.
Designed to eject paper at am/sec.
Even if the copy is charged with static electricity, the static electricity is removed by the static elimination brush 15, so that stackability in the copy stack section 20 is prevented from deteriorating. The entrance sensor 14 detects the entry of copy and the end of copy.

Copy stack section 20C, a tray 211 inclined to the front convex following the entrance section 10; a stop finger 22 rotating around a spindle B at the top end of the tray so that its tip can protrude and retract from the upper surface of the tray; Pivoted stack guide
A side guide 25 is slidably provided on a slide shaft 24 that extends perpendicularly to the copy conveyance direction, and a fixed reference guide (26 in FIG. 2) that opposes this and positions one side edge of the stack. configured. ←The copy ejected by the input roller 13 is moved to the stop finger 2 due to the ejection force and the inertia force due to the copy's own weight.
The ends of the butts are aligned at 2. The shape of the bottom of the tray 21 is designed so that even if a large-sized copy is curled, its forward movement will not be hindered. The stack guide 23 is shaped so that it can load only the number of small-sized copies specified in the specifications, and is designed to open around the spindle C to facilitate the removal of jammed paper. It has become. , the side guide 25 is initially at the home position shown by S in FIG. 2, and by setting the copy size,
If it is in the specified position, i.e. A3 size, leave it as is\,B
In the case of 4, it changes to the position C, in the case of A4, it changes to the position D, and in the case of B5, it changes to the position E.

When the entrance sensor 14 detects that a copy has been discharged into the tray 21 by the entrance roller 13, the side guides 25 at each of the above positions start moving toward the reference 26 after a predetermined period of time, and one of the copies is Push the side edge until the other side edge comes into contact with the reference 26, return to the string position, and after pressing the set number copy, stop at that position. In addition, "paper entry position (left)" in FIG. 2 is the position of the left edge of the copy ejected from the entrance roller 13, and "A3 entry position" to "rB5 entry position" are the positions of the left edge of the copy ejected from the inlet roller 13. Position on the right side of the hour s11 c, l DI
t E+ is the position of the right edge of the paper when the left edge of the paper contacts the reference 26 . As is clear from the dimensions shown in the figure, the copies are ejected with their short sides aligned with the transport direction. The side guide 25 is moved by a wire that is passed between a pulley connected to the shaft of the pulse motor and a driven pulley.

The stapling unit 30 includes an upper guide plate 311 facing the upper surface of the end portion of the tray 21; an upper ejection roller 32 and a lower ejection roller that sandwich the front end of a group of copies stacked between the end portion of the tray 21 and the upper guide plate 31; 33, upper discharge roller 3
The stapler 36, which is composed of a roller supporter 34 that supports the 2 and is rotatable around the support shaft A, a sensor 35 that detects the presence or absence of a copy, and a stapler 36, strikes from the bottom to the top. ing.

A paper discharge tray 41 constituting a discharge section 40 is provided downstream of the upper and lower discharge rollers 32 and 33.

Since the sheets are ejected in page order facing downwards, by striking the staple from below, it is possible to staple a series of copies with the same page order from the front. When stapling is performed, the group of copies is held between the pair of upper and lower discharge rollers 32 and 33, so that the stack is not disturbed.

Now, in general, characters and drawings are written in A3 and B4 size manuscripts in a landscape orientation, and A4 and B5 size manuscripts are often written in a portrait orientation.

In any case, when binding at one location with staples, it is normal to staple at the upper left corner. Therefore, when the stapler is placed on the front side, the binding position for full-size and variable-size copies that are output face-down from the copying machine with the short side in the transport direction is the position shown by the broken line in Figure 3. . (The figure shows the view from the back side.) As is clear from the figure, when the original is A3 size or B4 size, the leading edge in the copy ejection direction is always shown as ■, ...■ in the figure. In the case of A4 size and B5 size, it is always the front corner of the rear end in the copy ejection direction, as shown by ■, ■, . . . 0 in the figure.

In the former case, it is sufficient to simply stabilize the copies in the stacked position, and when the final copy is ejected and aligned, the upper ejection roller 32 rotates clockwise around the spindle A, which is not shown in the figure. A group of copies is strongly held between the upper and lower ejection rollers by the action of a solenoid, and staples are driven in. after that,
The stop finger 22 rotates clockwise about the spindle B to release the stopper, and the lower discharge row 233 rotates to discharge the bound copy onto the paper discharge tray 41.

In the latter case, after the final copy is ejected and aligned, the normal ejection roller 32 is first pressurized by the action of the solenoid, then the stop finger 22 is released, and then the lower ejection roller 33 starts rotating, and the copy Depending on the size, the stapler 36 is fed until the stapling position is reached and then stopped. Then, the stapler is actuated to perform stapling, the reprinting discharge roller is rotated, and the bound copy is discharged onto the paper discharge tray 41, thereby completing the bookbinding operation.

Incidentally, since the stapling operation of the stapler is instantaneously performed, if high stapling accuracy is not required, stapling can be performed while the discharge roller is rotating.

Since it is thought that there are not many originals that are used in A3 and B4 sizes in a portrait orientation, and A4 and B5 sizes in a landscape orientation, copies of these originals can be bound using the bookbinding apparatus 100 without using a stapler. It is sufficient to use the paper as a copy conveyance path, discharge the paper to the paper discharge tray 41, and bind the paper by hand.

In the apparatus of the present invention, the stapler is provided so as to grip a group of copies stacked from the side in accordance with the reference at the left end of the stack section, so that it is possible to eject the copies after stapling is completed or to eject the copies without stapling. Staplers often get in the way of transporting copies.

In the embodiment shown in FIGS. 1 and 2, the stapler 36
Only one needle is provided, and the direction of the needle is parallel to the copy conveyance direction, but as shown in Figure 3, the direction of the needle is struck diagonally so that a right triangle is formed at the corner. In this case, it is necessary to provide two staplers because the direction of the staples is different between cases ① to ② and cases ① to ②.

Effects As described above, according to the present invention, copies of various sizes can be stapled using one or two fixed staplers, so the staple position can be accurately determined.
The device becomes very simple.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view showing an embodiment of the present invention, Fig. 2 is a schematic diagram illustrating an example of the movement position of the side guide of the stack section, and Fig. 3 is a diagram illustrating the stapling position with respect to original and copy sizes. This is a schematic diagram. 10... Entrance part (accepting means) 20... Stacking part (stacking means) 21... Tray 22... Stop finger (copy stopper) 25
- Side guide 26...Reference guide 30...Stapling part (stapling means) 32, 3
3... Ejection roller pair 36... Stapler Original copy Figure 3 Original flat height Copy Procedural amendment February 14, 1985

Claims (2)

[Claims] (1) A receiving means for receiving copies ejected from a copying machine in page order with the copy side facing down and transporting them forward; a means for stacking the copies received through the receiving means; and a means for stacking the copies received through the receiving means; In the bookbinding device, the copies are ejected with their short sides aligned with the conveying direction, and the copy stacking device has a tray that is tilted forward and downward, and a stapling device that is attached to the front end of the tray from the top surface of the tray. The stapling means includes a copy stopper that is retractably provided and a fixed reference guide that abuts one side edge of the copies discharged onto the tray, and the stapling means includes a copy stopper that is provided so as to be retractable. The stapling device is provided so that at least the front edge of the document can be gripped from the outside, and has document size detection means, and when it detects a document of a size normally used in a landscape orientation, it operates the stapling device near the front edge of the document in the stacked position. A bookbinding device characterized in that, when a document of a size normally used in a portrait orientation is detected, a stacked copy group is fed in the conveyance direction by a predetermined amount according to the copy size, and then a stapling means is operated. Device. (2) The bookbinding apparatus according to claim 1, wherein the stapling means is provided only near the front end of the documents stacked at a predetermined stacking position.