JPS615995A - Copier having bookbinding function - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a copying machine equipped with a bookbinding function, and particularly relates to a copying machine equipped with a bookbinding function that can selectively perform saddle stitching and edge stitching.

(Prior Art) Conventionally, when copying multiple copies of multiple sheets of original, a sorter or T-alignment device is used to align the pages of the copied sheets, and a stitcher or the like is used to stitch the edges of the sheets. The binding was being done.

However, when large-sized sheets such as A3 and B4 are end-stitched, they take up a large amount of space when spread between two pages, making them difficult to handle. Also, for large size paper,
In order to reduce the space required for storage, edge-stitched sheets are sometimes folded in half at the center, but folding the sheets all together in this way does not look good when stored, and due to the folding When opening a double-page spread, it becomes difficult to see the information on the folded part.

Therefore, in order to make saddle stitching possible, the sheets that have already been copied from the copying machine are folded in half in the center, and the crease numbering method is used to create a crease. It is conceivable that the book could be bound at the creases of the book, but if it were to be exclusively used for saddle stitching, if edge stitching was required in some cases, it would have to be edge stitched using another edge stitching device, which would be a non-standard method. Becomes efficient.

(Object of the Invention) In view of the above-mentioned points, the present invention has been devised so that it is possible to selectively perform saddle-stitch binding after folding and stacking each sheet one by one, and edge-stitching by using the same binding tool if necessary. The purpose of this invention was to provide a copying machine with a bookbinding function.

[Structure of the invention]

The present invention will be explained below with reference to embodiments shown in the drawings.

FIG. 1 shows a copying machine 1 equipped with a bookbinding function according to the present invention.A contact glass 3 is provided in the upper part of a casing 2 of the copying machine 1, and is stretched horizontally. A recirculating document handling device 4 is arranged in the casing 2 above the glass 3. This document handling device 4 has a document tray 6 facing into the upper opening 5 of the casing 2, and this document tray 6 is located almost directly above the contact glass 3. An opening is formed in the lower surface of one end of the document tray 6, and a pair of pulleys 7.7 are wound around the opening, and a pair of pulleys 7, 7 are wound around the document tray 6, and the documents in the document tray 6 are moved rightward one by one starting from the lowest one. A delivery belt 8 for delivery is facing. A pair of separation rollers 9, 9 are disposed on the right side of the delivery belt 8 to prevent the upper part of the two-sheet original document.
A large-diameter roller 10 for reversing the document is disposed diagonally below and to the right of 9°9. A plurality of rollers 11 and 12 are in pressure contact with the outer periphery of the roller 10 for conveying the document along the roller 1o, and an arc-shaped passage 13 is formed along the outer periphery of the roller 10. . A horizontal passage 14 is formed from the lower end of the roller 1o to the contact glass 3, and on the contact glass 3 there is a conveyor belt 16 wound around a pair of pulleys 15. are in pressure contact. In addition, the separation 0
- the passage 13 in the vicinity of the lenses 9, 9 and the contact glass 3;
An inclined reversing passage 17 communicating with the end of the road is formed, and a switching pawl member 18 for closing either one of the roads 13 and 17 is disposed near the separation roller 9. It is set up.

A large-diameter roller 19 is disposed on the right side of the contact glass 3, and a plurality of O-rollers 19 are arranged around the outer periphery of the O-roller 19 to transport the document on the contact glass 3 along the roller 19. -Ras 20 and 21 are in pressure contact. Also,
An arcuate passage 22 is formed along the outer periphery of the roller 19. A passage 23 for returning original documents to the original tray 6 communicates with the rear end of this passage 22. A pair of 0-ra 24.degree. 24 for discharging the original NO in the passage 23 onto the document tray 6 is disposed at the end.

In such a document handling device [4, the document tray 6
If necessary, switch the switching pawl member 18 from the illustrated position and move the original sheet, which has been fed onto the contact glass 3 from above and exposed on one side, from the path 14 so as to run in the opposite direction on the conveyor belt 16 above the contact glass 3. By conveying the document in the order of passages 13 and 17, making one round around the roller 10, turning it over, and stopping it again on the contact glass 3, the back side of the document can be exposed using the serial number plate.

In the casing 2 below the contact glass 3, a copying device [25 with a variable magnification function is disposed.
has a photosensitive drum 28 that receives light from an optical system 27 that exposes the document on the contact glass 3 to form an electrostatic latent image.

Various chargers, a developing section 26A, a transfer section 26B, a cleaning device, etc. are arranged around the photoconductor drum 28, but since these structures are similar to those of a general copying machine, a description thereof will be omitted. do.

A plurality of paper cassettes 29 are provided on the end surface of the casing 2.
．． 29... are mounted therein, and rollers 30, 30... are disposed within the casing 2 for sending out sheets of paper P one by one from each paper cassette 29 mounted thereon. Further, the paper MP sent out from each paper cassette 29 is conveyed through a passage 31a, and each passage 31a merges into a passage 31b.
It is arranged to reach the transfer section 26B. This passage 3
Conveyance rollers 33, 33, . . . are arranged at 1b. One end of the conveyor belt 32 faces near the transfer section 26B, and the transfer section 26B conveys the paper P onto which the toner image on the photoreceptor drum 28 has been transferred. A fixing section 34 is disposed at the other end of the conveyor belt 32, and is configured to fix the toner image on the paper P.

On the downstream side of the fixing section 34, there is a passage 36 that curves upward.
A reversing section 35 is provided with a reversing section 35, in which a conveying roller 37.37 is arranged. The reversing unit 35 is configured to reverse the sheet P by feeding the sheet P introduced from the leading end from the rear end. Further, a switching claw member 38 is disposed near the reversing section 35, and supplies the MP from the fixing section 34 to the reversing section 35 or a paper folding section 45, which will be described later, provided in another casing 44. It is supposed to be done. An intermediate tray 39 is disposed at the bottom of the casing 2, and is configured to temporarily store the paper P that has been introduced into the reversing section 35 and reversed. For this purpose, a passage 40 equipped with a transport row 541 is provided between the reversing section 35 and the intermediate tray 39. Note that it is also possible to directly introduce MP from the fixing section 34 into the intermediate layer 39 from the passage 40 without introducing it into the reversing section 35 .

At the front end of the intermediate tray 39, there is a roller 43 for feeding out the sheets P in the intermediate tray 39 one by one starting from the uppermost one.
．． 43... are arranged, and the paper P sent out from the intermediate tray 39 is again supplied to the transfer section 26B via a passage 42 that merges with the passage 31b.

In order to perform double-sided copying using the copying apparatus 2 described above, the switching claw member 38 is raised and the paper P from the fixing section 34 is transferred to the reversing section 35.
2. Then press the operation button (not shown). Then, an electrostatic latent image is formed on the photoreceptor drum 28 by the light from the optical system 27 that scans the original 10 on the contact glass 3, and this electrostatic latent image is visualized by the developer tI326A toner. be done. On the other hand, the paper MP from the selected paper cassette 29 is supplied to the transfer section 26B via the passages 31a and 31b, and the toner image on the photoreceptor drum 28 is transferred thereto. The paper P onto which the toner image has been transferred is subjected to constant temperature at the fixing section 34 and then introduced into the passage 36 of the reversing section 35 . When the rear end of the paper P is completely introduced into the passage 36, the conveyance roller 37. supply to. This intermediate tray 3
The paper P stored in 9 has an image transferred onto its upper surface. In this way, a predetermined number of single-sided copying sheets P
is stored in the intermediate tray 39, from now on, the sheets P in the intermediate tray 39 are sent out one by one and transferred to the transfer unit 26 again.
B and copies the image on the back side of the paper P. Since the sharpening switching claw member 38 is switched to the state shown in FIG. 1, the paper P for double-sided copying is supplied from the fixing section 34 to the paper folding section 45.

In addition, when copying only on one side of the paper, it is sufficient to set the switching claw member 38 to the state shown in Fig. 1 from the beginning.Also, double-sided copying in a specific bookbinding mode (in principle, two times on the front side and two times on the back side) is recommended. The method for (4 times) will be described later.

The paper folding unit 45 is for making a crease in advance in the center of the paper P to be saddle-stitched,
This paper folding part 45 is a bookbinding device that can be overlooked with respect to the casing 2! The paper folding section 45 is provided in a casing 44 of 46, and the paper folding section 45 has a pair of conveyor rollers 47, 48 in the folding section, as shown in detail in FIG. Further, an incomplete circumferential roller 49 located downstream of both rollers 47 and 48 can be joined to one of the conveyance rollers 47. A passage 5 is provided downstream of these rollers 47 and 48.
0 is formed, and the proximal end of this passage 50 is O-ra 4.
The sheet P is tilted forward and upward in the direction of the joint between the O-ru 7 and the o-ru 49 with a missing circumference, so that the paper P is caught in the joint of both the O-ru 47 and 49. Further, a pair of sponge rollers 51, 51 are disposed at the end of the passage 50, and a passage 52 is further formed on the tip side of the rollers 51, 51. Further, a sensor 53 for detecting the presence or absence of paper P is disposed on the side of the passage 52, and when this sensor 53 detects the paper P, the omitted-circumference roller 49 rotates once in the direction of the arrow. It has become. A stopper 54 is provided in the passage 52 on the downstream side of the sensor 53, and is rotatable about a shaft 54a to take a retracted position.
A pair of conveyance rollers 55, 55 are disposed at the end of the passage 52. A plurality of stoppers 54 may be provided according to the size of the paper P, or they may be moved according to the size of the paper P being used.

The sponge openings 51, 51 serve to press the paper so that only the central portion of the paper P is bent in the direction of the joint between the two sides 47 and 49 when the leading edge of the paper P is in contact with the stopper 54. The conveyance force is weak,
Moreover, the circumferential speed of the sponge roller 51.51 is both rollers 47,
It is desirable that the circumferential speed be a little faster than the circumferential speed of 48. Further, a plurality of pairs of sponge rollers 51, 51 may be provided depending on the size of the paper P.

A non-binding tray 56 is disposed in the casing 44 on the downstream side of the conveyance rollers 55, 55, and is rotatable about a shaft 56a between a solid line position and a chain line position in FIG. The non-binding tray 56 receives unfolded sheets P that do not need to be bound from the sheet folding section 45 at the chain line position, and when sheets P to be bound are conveyed from the sheet folding section 45, it is placed at the solid line position. Climb up and retreat.

A paper binding section 57 is provided in the casing 44 below the non-binding tray 56.

The paper binding unit 57 is arranged to be movable up and down, and includes a binding tool 58 such as a stapler that binds the sheets of paper P using a stopper such as a subble, and a receiving seat 59 arranged below the binding tool 58. The receiving G-shaped surface 60 at the upper end of the receiving seat 59 has an acute angle so that the folds of the paper P folded at the center by the paper folding unit 45 are aligned and the paper P is stacked one on top of the other. It is shaped like an edge. Also,
A pair of flat guide plates 63 and 64 each rotatably supported by a support shaft 61 in the vicinity of the receiving surface 60 of the receiving seat 59 are disposed on both sides of the five front IJ seats. ing.

Each of the guide plates 63 and 64 has a horizontal position shown by a solid line in FIG. 3, a mountain-shaped position shown by a chain line in FIG. It is movable between rising to a flat position and tilting position, and is fixed at each position.

This fixing means includes support shafts 61.6 of each guide plate 63.64.
2 may be locked by appropriate means.

On one side of the other guide plate 64, there is a wall plate 65 that can be moved in the direction of the arrow depending on the paper size, as shown in FIG. A wall plate 66 is provided upright and movable in a direction perpendicular to the axial direction of the support shaft 62. This configuration is achieved by forming the base of the wall plate 66 and the guide plate 64 in the form of a tooth that engages with each other.

When edge stitching is to be performed, by moving the wall plate 66 to the position shown by the chain line in FIG. 3, the edges of the sheets can be aligned at a position suitable for edge stitching. Further, this wall plate 66 can take a retracted position as shown by the chain line in FIG. Further, on the outside of the wall plate 65, a width-adjusting roller 67 is disposed in pressure contact with the paper P on the guide plate 64 to bring the two adjacent sides of the paper P into contact with both the wall plates 65 and 66. is installed protrudingly. The axis of the width shifting roller 67 is arranged to intersect with the axis of the support shaft 62, and the width shifting roller 67 can move toward and away from the paper P on the guide plate 64. .

Below the guide plate 64, a 1-reiro 8 is arranged as shown in FIG.
Both sides 69.70 face the lower surface of the casing 44 at acute angles θ and θ2. By setting the angles θ and 02 to appropriate angles, the edge-stitched sheets of paper P1 that have slipped off the guide plate 64 are aligned along one side 69 of the tray 68, and the saddle-stitched sheets of paper P2 are aligned along one side 69 of the tray 68.
]・They will be aligned along the other side 70 of Leiro 8.

Bookbinding of sheets P by the bookbinding device 146, which includes the sheet folding section 45 and the sheet binding section 57 described above, will be described.

When saddle stitching a predetermined number of sheets P after copying is complete,
The paper P conveyed from the fixing section 34 to the paper folding section 45
The tip is conveyor 0-547.48 and sponge roller 51
．． 51, and comes into contact with a stopper 54, which is arranged in advance to match the size of this MP, and stops. After that, the sponge rollers 051 and 51 continue to rotate, but their conveying force is weak, so there is no risk that the paper P will buckle. Then, as the paper P is subsequently transported by the transport rollers 47 and 48, the paper P begins to warp near the end of the path 50. In response to a signal from the sensor 53 that detects this sharpening paper P, the incomplete circumferential roller 49 rotates once in time.
The bent paper P is caught between the transport O-ra 47 and the O-ra 49 to form a crease in the center of the paper MP. After that, the notched portion of the notched roller 49 faces the conveyance roller 47,
Before this state is reached, the stopper 54 retreats from the passage 52, so that the cutout portion of the cutout roller 49 is removed from the conveyor roller 4.
7, when the conveying force is lost, the sponge roller 51.
Paper P with a crease formed in the center by the conveying force of 51
is supplied to the paper binding section 57 from the direction of the conveyance rollers 55, 55.

When paper P with a crease formed in the center is supplied, both guide plates 63 and 64 of the paper binding section 57 are arranged so that the leading end of the guide plate 64 is positioned slightly downward, as shown by the solid line in FIG. are located in the same plane and are inclined. Note that, at this time, the non-binding tray 56 is located at the solid line position in FIG.

In this state, the sheets P fed onto both guide plates 63 and 64 are moved one by one by the action of width adjustment 1067 to both wall plates 63 and 64.
5 and 66. In this way, all the sheets P constituting one booklet are placed on both guide plates 63.
．． 64, the wall plate 66 is moved in the direction of the support shaft 62 and tightened so that the fold of the paper P is aligned with the receiving seat 59.
Move the paper P so that it is located on the edge of the paper. Then, both the guide plates 63 and 64 are rotated to the positions shown in chain lines in FIG.
The folds are aligned along the edges of the receiving surface 60, and the binding tool 58 is lowered to bind the sheets P along the folds. Finally, by rotating one of the guide plates 63 to the solid line position and retracting the wall plate 66, the saddle-stitched sheets P slide down along the guide plate 64.
They are collected in tray 68.

Next, when edge-stitching is to be performed, the stopper 54 of the paper folding section 45 is moved out according to the edge-stitching mode instruction, the paper P passes through, and the paper P fed onto the guide plates 63 and 64 placed in a horizontal state. Edge binding is performed by collapsing and stacking the binding edges on the wall plate 66, and then lowering the binding tool 58 in the same manner as in the case of saddle stitching. By rotating the completed guide plate 64 in the downward direction and rotating the guide plate 63 in the upward direction, the bound ff1P slides down into the tray 68 and is accumulated as in the case of saddle stitching. .

〔Effect of the invention〕

As described above, the present invention provides a copying machine having a bookbinding function of binding and binding sheets after copying, in which a receiving seat and a binding tool are provided facing each other at a position where copying method sheets are deposited, and the receiving seat is provided with a binding tool facing each other. The guide plate of -1) has guide plates on both sides that support stacked copies of the copied sheets, and is movable so that the guide plates are in a mountain shape during saddle stitching and are placed in a substantially horizontal state during edge stitching. By having a wall plate as a positioning member that determines the position of the paper at the time of saddle stitching and edge stitching, it is possible to perform saddle stitching and edge stitching of the sheets after copying at the time of selection in the 161 stitching section. C, and therefore there is no need to install the edge stitching mechanism separately from the saddle stitching mechanism, so 1!4
At the same time, the construction is simple, the workability is good, and the device can be made compact.

[Brief explanation of drawings]

Fig. 1 shows an embodiment of the copying machine according to the present invention. Fig. 2 is an enlarged view of the paper folding section of Fig. F31, and Fig. M3 is an enlarged view of the paper binding section of Fig. 1. FIG. 4 is a plan view of the main part of FIG. 3, and FIG. 5 is a front view showing the relationship between the paper binding section and the tray shown in FIGS. 3 and 4. DESCRIPTION OF SYMBOLS 1... Copying machine, 2... Casing, 3... Contact glass, 4... Recirculating original handling device, 6...
・Original, document tray, 25... Copying device, 26... Image forming section, 26A... Developing section, 26B... Transfer section, 28.
... Photoreceptor, 29 ... Paper cassette, 34 ... Fixing section, 35 ... Reversing section, 39 ... Intermediate tray, 44 ...
...Casing, 45... Paper folding section, 49... Circumferential gap roller, 54... Stopper, 56... Non-binding tray, 57... Paper binding section, 58... Binding tool, 59
...Socket seat, 63.64...Guide plate, 65.66
...Wallboard, 67...Width-adjusting roller, 68...Tray, D...Document, P...Paper. Figure 1 Figure 2

Claims (1)

[Claims] In a copying machine having a bookbinding function that binds and binds sheets after copying, a receiving seat and a binding tool are provided facing each other at a position where copied sheets are stacked, and copied sheets are stacked on both sides of this receiving seat. It has a supporting guide plate, and this guide plate is movable so as to be placed in a mountain shape during saddle stitching and in a substantially horizontal state during edge stitching. A copying machine equipped with a bookbinding function and equipped with a positioning member that determines the binding function.