JPS63231988A - Finisher 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 finisher device having a stapler that is connected to a copying machine (printing machine) and used as a bookbinding system as a whole.

(Prior Art) This type of finisher device bundles and staples a predetermined number of copy sheets discharged from a copying machine.

However, in conventional finisher devices, copy sheets of any thickness are fixed with needles of the same size, so if the sheet is thin, the bent portion of the needle becomes small, making it easy for the copy sheet to come off.

Therefore, in both cases, the stapling was incomplete and the aesthetic appearance was impaired.

(Purpose) The present invention was made based on this background,
It is an object of the present invention to provide a finisher device that eliminates overlapping of bent portions of staples and does not cause incomplete stapling.

(Structure) For this purpose, in the present invention, optimal stapling is performed by automatically selecting and using a staple according to the paper thickness.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 is a schematic diagram of a finisher device according to an embodiment of the present invention.

The finisher device 1 stores a specified number of copy sheets 3 (shown in the third figure) produced by a copying machine (shown in the tenth figure) in a staple tray 4, and selects one of three staplers 5 with different needle sizes. This device selects a stapler 5 having an optimal size of staples according to the number of copy sheets 3 to be stapled, and staples them.

The copy sheets 3 are sent one by one to the finisher device 1 from a sheet inlet 6. The copy sheets 3 that have entered the finisher device 1 are fed along the conveyance path 7 by the feed rollers 8. On the way, a sheet passing sensor 9 detects a jam and counts the number of sheets stacked. Conveyance path 7
The copy sheet 3 that has passed through enters the staple tray 4. The staple tray 4 has one corner reference as shown in FIGS. 2 and 3, and a pair of positioning rollers 10 sets the copy sheet 3 in a fixed position along the reference surface.

As shown in FIG. 4, the staple tray plate 11 is a hollow resin plate in which a number of balls 12 are fitted, and the copy sheet 3 passing over the plate can be smoothly moved in either direction.

The positioning roller pair 10 includes two rubber rollers 13 and a stay 1.
4, a rubber ring 15, a pulley: A16, a shaft: A17, a gear 18, and a motor: A19.

The stay 14 is attached to the shaft A17 so as to be freely rotatable, and the rubber roller 13 is in contact with the staple tray plate 11 under its own weight. Motor: A1
9 transmits the rotation to the gear 18 and shaft A17, and the pulley A16 and rubber ring 15 rotate the rubber roller 13.

The rubber roller 13 is attached obliquely to the reference surface of the staple tray 4, and conveys the copy sheet 3 along the reference surface so as to press it against the reference surface.

An information signal indicating the number of copy sheets 3 to be stapled is sent from the copying machine 2 to the controller 20.

The controller 20 detects the number of sheets and the sheet passage sensor 9.
The number of sheets counted by is compared, and if the values match, the copy sheet sent last passes the sensor position and enters the staple tray 4, and then the copy sheet is fed. Drive of roller 8 and motor: Stop A19.

Next, the controller 20 compares the number of sheets to be stapled with an already set program and selects an appropriate stapler 5. An example of the program is as follows.

Motor B (21) shown in FIG. 5 is rotated so that the selected stapler 5 comes to the stapling position. Then, the motor 022 shown in FIG. 6 is rotated to advance the staple tray 4 to the stapling position.

Shaft: B23, Motor: C22, Worm gear
A wheel 24, a pulley B25, and a wire 26 are attached to the main body of the finisher 1, and the staple tray 4 can be moved by driving the wire.

The interior of the stapler 5 has a structure as shown in FIG. 7, and when the staple tray 4 moves and the copy sheet 3 presses the microswitch 27, the copy sheet 3 is stapled.

When the microswitch 27 is turned on, a solenoid A28 integrally supported with the staple tray 4 pulls the crank 29. Then, the needle holder 31 and the striking machine 32 are moved by the spring A30.
come down at the same time.

When the needle holder 31 hits the copy sheet 3 (FIG. 8), the punch 32 bites into the needle holder 31 and drives the needle 33 into the copy sheet 3 (FIG. 9). After the needle 33 passes through the copy sheet 3, it is bent by the needle bending member 34, and the needle 33 passes through the copy sheet 3.
Staple.

Then, solenoid: A28 is released, and spring: B35
The crank 29 is returned to its original position. At this time, after the punch 32 is removed from the needle holder 31 by the spring A30, both are separated from the copy sheet 3.

Next, the staple tray 4 carrying the stapled copy sheets 3 is returned to its original position by rotating the motor C22 in the reverse direction. Furthermore, rotate the motor: B21 and transfer the tray: A.
36 is controlled by the controller 20 so that it comes to the stapling position. Then, by pulling the solenoid B37, the sheet flow stopper 38 is lowered downward. Then, the copy sheet 3 slides out under its own weight and is discharged to the paper discharge tray 40 through the conveyance tray A36 and the conveyance tray B39. In addition, in FIG. 5, S is a stapler position sensor.

10 and 11 show an example of a copying system equipped with a finisher W,1.

FIG. 10 shows a combination of the RADF 41, the copying machine 2, and the finisher device 1.

The original set is placed face up on the RADF 41. Then, the RADF 41 sequentially sends the document set to the copying machine 2 starting from the last page at the bottom, and the copying machine 2 copies each document sent from the RADF 41 once. Then, the copy sheets 3 of the last page are sent one by one to the finisher 1 with the front side facing up, and the copy sheets 3 are stacked on an internal staple tray 4.

When all of the copy sheets 3 for the original set are stacked on the staple tray 4, the top page is the first page and all the front sides are facing up, which is the same as the original set when placed on the RADF 41. It is an array. Then, normal work was performed by stapling from above. By repeating this process as many times as necessary, the required number of copies of the copy sheet set can be prepared.

FIG. 11 shows a combination of the ADF 42, the copying machine 2, the sorter 43, and the finisher device 1.

The original set can be placed face down on the ADF 42 as it is. At this time, the back side of the last page is facing up at the top.

When the ADF 42 sends the first page to the copying machine 2, the copying machine 2 copies the required number of copies and sends them to the sorter 43. At this time, the front side of the copy sheet 3 is facing upward. The sorter 43 sorts the copy sheets 3 one by one into each bin, and then repeats this operation to copy the same number of sheets for all originals, and then the sorter 43 separates them. Copy sheets 3 are arranged in each bin of the sorter 43 in order from the bottom, with the front side facing upward. The top page is the last page.

When all the copy sheets 3 have been sorted, the sorter 43 sequentially sends the copy sheets 3 from the top of the top bin to the finisher 1, and this operation continues until the bin is empty.

Finisher outfit? I! When all the pages are stacked on the staple tray 4 in (2), the top page is the first page, and the pages are arranged in order with the front side facing up.

Then, normal operation will be performed by stapling from above. By repeating this process for each bin of the sorter 43, the required number of copy sheet sets can be prepared.

In addition to this, there are also (1), (2), (31, (
As shown in 41, 12 methods can be considered depending on the method of discharging the copy sheet 3 from the copying machine 2. This can be achieved by providing an intermediate tray (which can be replaced with a sorter, etc.), a reversing device, or by attaching the stapler 5 in reverse (so that the staples 33 are struck from below).

In FIG. 12, "top" and "bottom" in the intermediate tray section mean "pick from the top" and "pick from the bottom," and "top" and "bottom" in the stapling direction mean "pick from the top" and "bottom". From above"
, means stapling "from below".

Next, the control system of this device will be explained.

FIG. 13 is a control block diagram of the finisher device,
Figure 4 (Figure 14A, Figure 14B) is a flowchart diagram,
FIG. 15 is a timing chart.

The control signal system of the finisher device will be explained using these three figures.

When started, the number of stapled sheets and the number of stapled copies are read from the copying machine (main body control section) and stored in the RAM (memory) 57 of the finisher device.

Then, the number of stapled copies and the number of stapled sheets are assigned to counter memories SB and SM, respectively.

Next, the main body control section 50 transmits a copy start signal to the copying machine, and at the same time, the finisher control section (controller) 20
drives the feed roller and motor: A19.

After the sheet passage sensor memory SS is reset to 0 by the finisher control unit 20, the output of the sheet passage sensor 9 is repeatedly read. When the copy sheet passes the position of the sheet passage sensor 9, it becomes 5S-1, and SM is counted down by one. Here, it is determined whether SM is 0 or not, and if it is not 0, SS is reset to 0 and the next copy sheet is waited for passing. Repeat this until SM=O. When SM=O, the timer (1) 54 is operated to allow sufficient time for the copy sheet that passed last to enter the staple tray 4, and then the drive of the feed roller and motor A19 is stopped.

When the number of stapled sheets is 1 to 20, 1 is assigned to the SP of the stapler position setting memory, when the number is 21 to 40, 2 is assigned, and when the number is 41 to 3, 3 is assigned. Then, the motor B21 is driven, and when the human power from the stapler position sensor S matches SP, the motor B21 is stopped. Then, the motor: C22 is driven. When the staple tray 4 reaches the stapling position, the microswitch 27 is turned on and the motor C22 is stopped. Then the solenoid:
Pull A28 and staple. At this time, the timer (2155) continues to pull the solenoid A28 long enough for the needles to be completely stapled. When the timer elapses for one hour, the solenoid A28 is released. Next, the motor C22 is rotated in the reverse direction. Return the staple tray 4 to its original position. When the HP switch 52 is activated, the motor 022 is stopped and the staple tray 4 is stopped at the home position. The motor B21 is then rotated in the reverse direction.
The stapler is rotated until the input from the stapler position sensor S becomes 0.

When the conveyance tray 36 reaches the home position (FIG. 1A), the stapler position sensor S output becomes O, and the motor B21 is stopped.

With the series of operations up to this point, one copy sheet set can be made. Count down the SM by one, and if it does not reach 0, return to A and repeat in the same way. When SM becomes O, all work is completed and the program is terminated.

Next, each step in FIGS. 14A and 14B will be annotated.

*1 (1) Number of staples Bind together with one staple Number of copy sheets.

(2) Number of stapled copies Stapled copy sheet set Number of copies.

(313B Staple copy counter.

(413M Staple number counter.

*2 SS A method to read the output of the sheet passing sensor. In memory, normally press O to pass the sheet. If detected, it becomes 1.

*3 SP Memory for stapler position setting.

5p-o-・-home position The transport tray is A in Figure 1. The position indicated by .

The stapler for S P-1-1 to 20 sheets is at the stapling position.

5P-2 --- A stapler for 21 to 40 sheets is located at the stapler.

5P-3--41~ The stapler for sheets is at the stapling position.

*4 Motor: Forward rotation of B means counterclockwise rotation in Figure 1.

*5 Stapler position is the output of the stapler position sensor (Figure 5).

Stapler position Item in staple position 0
Transport tray (home position) 1
Stapler 2 for 1 to 20 sheets Stapler 3 for 21 to 40 sheets 41
~ Sheet Stapler *6 Motor: The forward rotation of C means the rotation direction in which the pulley rotates clockwise in Fig. 6.

*7 HP switch (44) With the microswitch shown in Figure 1 Staple tray home position Detect.

Further, the copying machine enters a standby state after copying one set of staple sheets.

(Effects) The present invention is as described above, and according to the present invention (1) when stapling a decimal number of sheets, it is possible to prevent needles from overlapping and floating on the back side.

(2) When stapling a large number of sheets, incomplete stapling due to insufficient needle length on the back side can be prevented.

(3) You can use a needle of the optimal length and size for the thickness of the paper, resulting in a beautiful finish.

It has the following effects.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of a finisher device according to an embodiment of the present invention, FIG. 2 is an external perspective view of the staple tray portion thereof, FIG. 3 is a plan view showing width adjustment of paper, and FIG. 4 is a staple tray. FIG. 5 is an external perspective view of the stapler portion, FIG. 6 is a detailed external perspective view of the staple tray seen from the back, and FIGS. 7, 8, and 9 are external perspective views showing the groove structure of the tray plate. FIG. 10 is a diagram of each operation state showing the state of paper stapling. Figure 11 is a dark map showing different copying systems;
Figures 12 (1) and (21, (31, +4) are diagrams showing paper processing modes in each copying system, Figure 13 is a simple control block diagram, Figures 14A and 14B are control flowcharts, 15 is a timing chart of the same. 5... Stapler, 21... Motor as stapler selection means. 9 Figure 2 j4 l/JU Jko
28 Figure 10 Figure 11 Figure 13 n Procedural amendment (spontaneous) August 22, 1986 Case of the Commissioner of Patent and Patent Application No. 1982-64254 Name of Invention Finisher - Person Who Amends Device Case Relationship with applicant

Claims (1)

[Claims] A finisher device comprising several types of staples with different leg lengths and widths, a plurality of staplers each carrying the above-mentioned staples, and further comprising means for selecting a stapler according to paper thickness.