JPS60180895A - Bookbinding device - 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 bookbinding device that stacks and staples copies ejected from a copying machine.

Prior Art When a set of original documents consisting of multiple sheets is copied using a copying machine,
Conventionally, staplers (trade name: Stapler) are used to manually staple one corner or 2.6 points on the - side.

Recently, recycling-type automatic document feeders (RADFs) have been used as part of office automation. A single exposure is performed on a fed sheet, the document is fed through circulation a predetermined number of times, and a series of copies are continuously ejected from the copying machine in a predetermined number of copies. Therefore, if a simple bookbinding machine that can automatically staple each set of copies that are continuously output is connected to the copy output port of a copying machine, the bookbinding work can be done without manpower. First, the bookbinding work is speeded up, which is convenient.

As a bookbinding device for this purpose, for example,
Japanese Patent No. 5-119,047 discloses a document copying device with a copy finishing device. In this device, copies ejected from the copying machine are ejected onto an artistically inclined tray, and the tip of the tray collides with a stopper whose position can be changed according to the copy size and which can be retracted from the surface of the tray. Then, one side edge is pushed by a push-butting device so that it collides with a side guide whose position has been adjusted in advance according to the copy size, and the stacked copies are stacked.
After the sheets are stapled together, the stopper is retracted below the surface of the tray, and the bound copies are slid down and received by the copy tray.

A set of originals consisting of multiple pages is usually stored stacked in page order from top to bottom with the image side facing up. The m groups of originals t arranged in order are placed on a document feed tray with the image side facing down, and the sheets are sequentially fed onto the contact glass starting from the first page and copied. Therefore, copies are ejected from the copying machine in page order and stacked in page order from bottom to top. In this state, the copies are ejected with the image side facing down in order to be stapled and bound into a book.

Furthermore, the stable is generally driven from the image side and folded on the back side for binding. Therefore, in the finishing device described above, the stable is driven from below the stacked group of copies, and the group of copies is pushed up by the tip of the stable until it comes into contact with the receiving portion provided on the upper side. As a result, a group of copies that have been aligned left and right at the back end becomes misaligned, resulting in poor stackability.

In order to eliminate this drawback, the present inventors provided an intermediate stacking surface between the receiving section for receiving copies of a copying machine and the stable, punching and finishing section, and created an image on this intermediate stacking surface. This is a bookbinding device that stacks the pages in order from bottom to top with the surface facing down, then U-turns them in a vertical plane, flips them upside down, and sends them to the finishing section for finishing with stabilization, punching, etc. Invented it.

In a bookbinding device with this configuration, it is necessary to align the front edges stabilized in the finishing section with high precision, and furthermore, when sending a group of aligned copies to a conveyance path that makes a U turn, the means for aligning the copies becomes an obstacle to conveyance. We must make sure that this does not become the case.

Objective: As described above, the present invention provides an intermediate stacking surface between a receiving section for copies ejected from a copying machine and a finishing section for stabilizing and punching, and provides an intermediate stacking surface with the image surface facing downward. To precisely align edges to be stabilized in an intermediate stunking part in a bookbinding device in which a group of copies stacked in page order from bottom to top is U-turned in a vertical plane, turned upside down, and sent to a finishing part. To provide a bookbinding device which is capable of aligning a group of copies and does not cause a means for aligning the copies to get in the way or disturb the group of aligned copies when sending the group of aligned copies to a U-turn conveyance path. .

Structure The present invention achieves this object, in the bookbinding apparatus having the above structure, a stacking reference plate is provided on the discharge side of the intermediate stacking surface to the U-turn path so as to be retractable above the stacking surface. The present invention is characterized in that a control means is provided for controlling the stunking reference plate to be retracted from the stacking surface in response to a signal detecting that the last sheet of the group of sheets has been received by the intermediate stacking surface.

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

The bookbinding apparatus 2 of the embodiment shown in FIG. 1 includes a copy receiving section A that is connected to the copy output section of the copying machine 1 and receives copies, a feeder section B that feeds the front cover and the back cover to the copy receiving section A,
Intermediate stacking section c1 for temporarily stacking copies, covers, and gallery covers Finishing section D for stapling and punching
1 Finishing done! It has a discharge stack section E for discharging and stacking the copy bundle.

The configuration of each of the above parts will be explained in detail below.

The copy receiving section A is provided with a pair of receiving rollers 14, 15 following a receiving guide plate 37, 38 that is continuous with the copy ejecting port of the copying machine, receives the copies ejected from the copying machine 1, and discharges them to the intermediate stacking section C. do. Guide plate 3'7.38
A sensor 53 is provided facing the receiving passage formed by the receiving roller pair 14, 15, and the receiving roller pair 14, 15 starts rotating in response to a copy detection signal from the sensor 55.

The feeder part B is provided at the top of the bookbinding device, and has a paper feed tray 4 on which a stack of sheets 3 to be the front and back covers is placed.

The paper feed tray 4 has an end remote from the receiving section 100 connected to a rotating shaft 6.
6 and is urged upward by a spring 9 near the end near the receiving section A, so that the upper surface of the paper bundle 6 is pressed against the paper feed roller 5 with appropriate pressure, as indicated by the arrow in the figure. direction and feeds the paper to the left in the figure. Continuing to the left of the paper feed tray B, the paper feed guide plate 12.13 moves the pair of receiving rollers 14. A paper feed path connected to the upstream side of i5 is formed. The paper feed path is provided with a multifeed separation means consisting of a separation roller 6 and a separation pad 7 pressed against the separation roller 6 by a pressure spring 8, a pinch pair 1.0.11, and a paper sensor 52.

The intermediate stacking section C is wound around an intermediate tray 100 that receives and stacks copies, front covers, and back covers discharged from the receiving rollers 14 and 15, a drive roller 16, and a tension roller 17, and is wound around the lower side of the intermediate tray 100. , a feed roller 50 that presses against the drive roller 16 across the tray belt 18 by a spring (not shown), a U-shaped feed guide plate 22 , 23 following the tray belt 18 , and a feed roller 50 that moves along the intermediate tray 100 . A stacking reference plate 21 is provided at the left end of the intermediate tray 100 so as to be movable from the surface of the intermediate tray 100. As shown in FIG. 3, the tray belt 18 is provided with two strips parallel to the conveyance direction, and is freely rotated in either the left or right direction by a single motor directly connected to the drive roller 16. An aligner 19 is fixed to the outer surface of the tray belt 18 and protrudes above the tray 100 through a slit provided in the intermediate tray 100, and moves as the belt moves to adjust the image of the sheets on the tray 100. , press the right edge of the sheets to align the left edges of the sheets against the stacking reference plate 21, and with the stacking reference plate 21 retracted, move the aligned sheets together into the first stack.
Move it to the left in the figure. The feed roller 50 is urged by a rotating arm 61 around a rotating shaft 60 in the direction of constant pressure contact with the tray belt 18 by a spring (not shown).
Approach/separation control is performed by a solenoid (not shown). Along the tray 100 and the guide plate 22, a paper sensor 54,
55 are provided.

The finishing part is wound around the receiving roller 24, the tray 101, the driving roller 25, and the tension roller 26, and is wrapped around the tray 10.
The finishing machine 30 includes a guide belt 27 along the lower surface of the paper, a guide 29, and a stapler and a puncher. The guide belt 27 and the tray 101 are connected to the intermediate tray C.
It has the same structure as the tray 100 and the guide belt 1B, and the alignment 28 is fixed to the guide belt 27.
It passes through a slit provided in the tray 101 and projects onto the tray, aligning the sheets and pushing them forward. One or both of the stapler and puncher of the finishing machine 30 can be selectively operated by a drive shaft 61. Tray 101 and guide belt 27
is capable of swinging about the axis of the drive roller 25 between the position shown by the solid line in FIG. 1 and the position shown by the broken line. Additionally, a sensor 56 is provided along the tray 101.

The ejection stack section E includes an ejection tray 33 provided at a position where it can receive a group of finished copies from the tray 101 located at the position of the broken line, and an upper surface of the group of copies placed on the ejection tray 33. A link mechanism and its drive device (not shown) that raise and lower the ejection tray 36 so as to keep the position of the top surface of the copy group constant at all times based on detection signals from the detection lever 34 and the detection lever 64 that detect the position in the height direction. Become.

The operation of the bookbinding apparatus configured as above will be explained below.

Before explaining the detailed operation, an outline of the overall operation will be described.

The bookbinding device 2 is started to operate when a document start button of a document supply device attached to the copying machine 1 is pressed.

When a front cover and a back cover are attached to a copy, the cover is first sent from the feeder section B to the intermediate tray 100 of the intermediate stacking section C via the receiving rollers 14,15. Next, the copies from the copying machine 1 are fed into the intermediate stacking section C via the copy receiving section A in page order with the image side facing down, and stacked on top of the previously fed cover.

When a predetermined number of copies have been fed, the back cover is fed again from the feeder part B and is stacked on top of the copy stack. There, a series of copies (hereinafter referred to as a group of copies) aligned with the front and back covers is guided by a U-shaped guide plate, makes a U-turn, is turned upside down, and is sent to a finishing section where it is placed in a designated position. Finishing work (stable, punch) will be carried out. By doing this, the stable is driven from above into a group of copies that are arranged in page order from top to bottom with the image side facing up, and the front and back covers stacked above and below, and punched from above. You can finish it by doing so. The group of finished copies is discharged onto the paper discharge tray 66 and stacked.

Next, the functions of each part will be explained.

Paper feeding roller 5 of feeder part B, double feeding separation means 6.7,
8. The function of the pinch roller pair 10.11 is the same as that of the transfer paper feed section of a general copying machine, but relatively thick paper is used for the front and back covers, so thick paper is The performance is such that the paper is fed reliably one sheet at a time. Also, when using this bookbinding machine 2 alone to bind printed sheets other than copies ejected from the copying machine, a set of pages with aligned pages is placed on the paper feed table 4 of the feeder part B. Place paper, etc., and sequentially move the intermediate stack section C using each of the above members.
After that, it is sent to the finishing section for finishing.

The peripheral speed of the pair of receiving rollers 14 and 15 in the copy receiving section A is equal to or several times faster than the transport speed of the copying machine 1, and the sensor 56 detects a copy or the sensor 52 detects a cover. Rotation starts based on the signal received.

Receiving reroller pair 14. Intermediate stacking part C by i5
The sheets discharged onto the intermediate tray 100 are guided by the presser plate 20, and even sheets with face curls are reliably aligned on the intermediate tray. It makes a reciprocating movement once every time a sheet is delivered,
The left end of the paper is brought into contact with the stacking reference plate 21, and the front and rear positions of the paper are aligned. Both sides of the paper are also aligned in predetermined positions by a similar device (not shown). When it is confirmed that the last sheet of the set (last page copy or back cover) has been fed, the stacking reference plate 21 is retracted from the surface of the intermediate tray 100, and the tray belt 18 is moved in the direction of the arrow in the figure. It rotates once, is aligned on the intermediate tray 100 by alignment 19, and sends out a group of copies to the left. When the sensor 54 confirms that a group of copies has been fed out, the feed roller 5-0 installed at the tip of an arm 61 that swings about a shaft 60 is operated by a solenoid to move the top surface of the group of copies (the back side of the copies). The group of copies is made a U-turn along the guides 22 and 23, so that the image side of the copies faces upward, and then the tray 101 in the finishing section is placed.
send it towards.

When the leading edge of the group of copies is detected by the sensor 55, the receiving roller 24 presses the group of copies by the action of a solenoid, and the leading edge is inserted into the recessed part 30a of the finishing machine 30 along the guide 29 at the speed of the guide belt 27. The 14th place will be determined. A group of copies follows a preset mode,
Those in stable mode are stabilized in a predetermined position, and those to be punched are punched in a predetermined position.

After stabilizing and punching, the first group of copies
As shown in the figure, an arm 111 that swings around a shaft 110 under the action of a solenoid pushes back the tips of the group of copies to a position where they are removed from the recess 50a of the finishing device 60.
Next, the tray 101 is rotated together with the guide belt 27 to an inclined position shown by the chain line in FIG. The paper is delivered onto the paper discharge tray 33.

A height detection feeler 34 is provided above the paper output tray 65, and is always in contact with the top surface of the group of copies fed into the paper output tray 36 to detect the height of the top surface of the group of copies.
The height adjustment link mechanism 35 adjusts the height of the top surface of the group of copies stacked on the paper discharge tray 63 so that the height is always at a constant height, which is not much different from the front end of the inclined tray 101. Note that the paper ejection tray 66 is connected to the link mechanism 6.
It is placed on a base plate 33a attached to 5 so as to be slidable toward the front side. Therefore, a group of copies that have slid down on the inclined tray 101 are stacked on top of the previous group of copies without being disturbed, and when a predetermined number of copies have been stacked, the paper discharge tray 33 is pulled out to the front and taken out. In addition, the staple
When the areas that have been smoothed overlap, that area will swell, so
It is preferable to move the paper discharge tray 33 in a zigzag manner left and right or front and back each time a copy is sent.

In another embodiment shown in FIG.
The guide belt 27 is not configured to swing, and the operating section 69 and receiving section 40 of the finishing machine 30 are separated vertically, and the position of the tip of a group of copies for finishing can be opened and closed. This is done by the stopper 41. Stopper 41
Next, a guide 42, a discharge belt 45 wound around a drive roller 44 and a tension roller 43, and a drive roller 44.
A tray guide 47 is provided along the side wall of the bookbinding machine 2, and a discharge tray 49 is provided to be slidable in the vertical direction along the side wall of the bookbinding machine 2.

A feeler 110 is provided above the ejection tray 49 to detect the height of the upper surface of the stack 48 of copies placed on the ejection tray 49. The rest of the structure is the same as the embodiment shown in FIG. 1, and the same members are given the same reference numerals.

In this embodiment, the group of copies aligned and positioned by the stopper 41 is subjected to stabilization and punching operations in accordance with a mode selected in advance by the operating section 69 of the finishing machine 30. Thereafter, the stopper 41 opens, the guide belt 27 moves in the direction of the arrow, the group of copies is sent to the ejection belt 45 by alignment 28, and ejected to the ejection tray 49 by the cooperation of the ejection belt 45 and ejection rollers 46. The height of the top surface of the overlapping group of copies stacked on the discharge tray 49 is detected by the feeler 110, and the height of the top surface of the group of copies is controlled based on the signal so that the height of the top surface of the group of copies is always approximately constant.

In addition, in the apparatus of the embodiment shown in FIGS. 1 and 2, the copies are transferred to the output tray s6. without binding or punching. lS
9, in the apparatus shown in FIG. 1, the finishing section tray 101 should be rotated to the inclined position, and in the apparatus shown in FIG. 2, the stopper 41 should be kept in the open position.

Effects As described above, according to the present invention, an intermediate stacking section is provided between the copy receiving section and the finishing section of the bookbinding device, and a group of copies stacked in page order from bottom to top with the image side facing down is stacked in a vertical plane. Turn it upside down and send it to the finishing section.
By stabilizing from above, it is possible to prevent the copy alignment from being disturbed during stabilization, and the edges of the sending-out side of the intermediate stacking section are aligned with high accuracy by the reference plate, and the reference plate is also aligned when sending out a group of aligned copies. It does not get in the way or disturb the alignment of a group of aligned copies.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the present invention, Fig. 2 is a front view showing another embodiment, and Fig. 3 is a cross section of the intermediate tray of the embodiment shown in Figs. 1 and 2, respectively. It is a diagram. A... Receiving section B... Cover feeder part C...
Intermediate stacking section D... Finishing section E... Discharge section 1... Copying machine 2... Binding machine 21... Stopper (stacking reference plate) 22.23
... U-shaped guide (vertical reversing means) 60 ... Finishing and raising machine 3!1,49 ... Ejection tray 34.110 ...
・Feeler (means for detecting the height of the top surface of a group of copies on the ejection tray) Procedural amendment April 19, 1980 Director-General of the Patent Office Kazuo Wakasugi 1, Indication of the case 1980 Patent Application No. 38075 2, Name of the invention Binding Device 3, Relationship with the person making the amendment Patent applicant name: (674) Ricoh Co., Ltd. 4 Agent address: Kaji Kogyo Building, 2-32-4 Nishi-Shinbashi, Minato-ku, Tokyo
〒105 f! (433)4564 Name Patent Attorney (63
13) Takehisa Ito 5. Date of amendment order (voluntary) 6. Column for inventors other than the above in the application to be amended, column for scope of claims in the specification, column for detailed explanation of the invention. 7. Contents of amendment (1) Submit an application for correction. (2. Amend the claims as shown in the attached sheet. (3) Correct [00J on page 7, line 10 of the specification to rAJ. Insert the following sentence next to "The position of the stacking standard plate 21 is - feeding roller 5."
The position K may be placed before or after 0, and K may be made to appear or disappear from the surface of the intermediate tray 100 by, for example, rotating it around its upper end or sliding it in the vertical direction. ” (5) Change “direct connection” in page 8, line 15 of the same book to “
Correct it to "Connection". (6) “Face Curl” on page 13 of the same book, lines 2-3
is corrected to "curled." Attachment [2, Scope of Claims

Claims (1)

[Claims] A receiving means for receiving and transporting copies discharged from the copying machine forward; an intermediate stacking means for stacking the copies received from the copying machine through the receiving means from bottom to top in the order in which they are received; and the intermediate stacking means. In the bookbinding apparatus, the bookbinding apparatus has a means for conveying a group of copies stacked in a stack in a U-turn in a vertical plane to a finishing section, and a finishing section equipped with a finishing means for finishing a stable or the like. A stacking base plate is provided on the ejection side of the intermediate stacking means so as to be able to protrude and retract above the stacking surface, and the above-mentioned stacking base plate is provided on the ejection side of the intermediate stacking means so as to be retractable above the stacking surface. A bookbinding apparatus comprising a control means for controlling the stacking reference plate to be retracted from the stacking surface.