JPS5992869A - Sheet assorting method and device thereof - Google Patents

Abstract

PURPOSE:To enable reliable assortment of each set through a simple device, by a method wherein a conveying action, effected by the roller pair of a unit mounted to the sheet discharge part of a duplicator, is selectively rendered effective and ineffective to discharge and accumulate the sheets in a normal or an oblique manner. CONSTITUTION:When, with a solenoid 16 at the upper part of a unit energized, a backup roller 12 is situated in position shown by a one-dotted chain line, a conveying force is not exerted on a sheet by a roller part, the sheet is released from a conveying force at a point of time when it has passed through a sheet discharge roller 5, and the sheet is placed in a normal orientation on a tray. Thereafter, when the solenoid 16 is rendered ineffective, the backup roller 12 is forced into press contact with a conveyance roller 7 through a spring force, only the sheet feed reference side of the sheet discharged by the sheet discharge roller 5 is further conveyed between the nip formed by the rollers 7 and 12, and the sheet is placed in an orientation shown at 3. Further, when, with the conveyance roller 7 staged, the sheet is placed in an oblique orientation, the feed speed of the sheet feed reference side is faster than a sheet discharge speed to reliably place it in an oblique orientation, resulting in facilitation of assortment of sets.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for sorting sheets copied by a computer or the like into sets having the same page order.

FIG. 1 is an external perspective view of seven examples of N-shaped floating roots.

For example, what is indicated by arrow A in FIG. 1 is a circulation type automatic document feeder (the same is true for arrow A in FIG. 1). When l sets of originals with complete pages are loaded in tray a, and copy is turned on, copies are made one after another, and the copied sheets are l
When the setting is completed, the second set, third set, etc. are successively discharged from the paper discharge port C in the section B in FIG. 1, and are deposited on the tray b. Therefore, there must be no mechanism in part B.
For example, it is not necessary to sort each set, which causes inconvenience in subsequent processing.

Conventionally, it has been proposed to install a sorter, colleter, or oscillating tray at the paper ejection port C for sorting, but the sorter and colleter are large and require a large installation area, making them compact. It was expensive and not very affordable.

Therefore, an oscillating tray was proposed that sorted the sheets by changing the stacking position, but since the conventional oscillating tray moved the tray at right angles to the sheet conveyance direction, when the number of copies increases, the weight of the loaded paper increases. Because of its large size, it required a large amount of force to move the tray, requiring a strong and complex structure, which was also disadvantageous in terms of energy.

The present invention aims to enable easy installation near the paper discharge port of a copying machine, move sheets without being affected by the accumulated weight of discharged paper, and distinguish between copy sets. The sorting method of the present invention by changing the sheet stacking position is particularly convenient for copying machines equipped with a circulation type automatic document feeder, and it is expected that the sorting method of the present invention by changing the sheet stacking position will be advantageous in cooperation with the circulation type automatic document feeder. purpose.

Embodiments of the present invention will be described with reference to the drawings. @Figure 2 is a plan view that does not show the state in which sheets are sorted by set on the tray/top using the present invention, 2 is the first set with ordinary discharged paper stacked, and 3 is the discharged paper stacked using the present invention. The a-th set is shown.

Thereafter, the items are sorted and loaded alternately in the third set, my upper set, and so on. Immediately, the odd numbered sets are stacked on top 2 and the algebraic numbered sets are stacked on top of 3.Each set is obviously separated, and each set is arranged in page order, forming 7 copies. Therefore, sorting can be done without the need for a sorter or the like.

FIG. 3 is a perspective view of the paper discharge section of the copying machine.

Typically, a copying machine has a certain paper feeding standard, and all sizes that can be used in the copying machine are transported with one side of the sheet aligned with the paper feeding standard. That is, all the sheets to be discharged in the paper discharge section pass through the same place on one side. The present invention takes advantage of this by adding a unit 1 shown by a dashed line in the figure to the paper discharge port on the reference side, and selectively enabling or disabling the holding action by the pair of rollers of the unit, which will be described later. The discharged sheets are sorted by selectively stacking them in a normal position or an oblique position.

Figure 5 is a cross-sectional view of unit) F, and figure 5 is unit).
FIG. A polishing roller 6 that contacts and is driven by an upper discharge roller 5 driven by an ab drive device (not shown) and a stepped conveyance roller 7 that receives the driving force are attached to a unit base j with pins/ The arm 10 is rotatably secured to an arm io which is pivoted at a fixed axes y and qa+.
) LL' is forced in the direction of arrow C and becomes 0). ff
The convex rubbing roller 6 and the upper paper ejection roller 3 are moved by the spring force of 1l.
Let the contact force be (t,). In addition, the Nozutsukaku A7 blower ix has pin 13 fixed on the mJjikku unit base g.
The bell crank /F is rotatably engaged with a shaft lS fixed to one end of the bell crank /F, and the other end of the bell crank /+ is pivotally connected to the movable piece of the solenoid lL by a pin 76a. Been done l, Nru. Furthermore, (1) i'! (not shown) in the bell crank llI! A spring force is applied to the upper surface in the upward direction d, and when the solenoid 16 is not energized, the pull-up roller/2 is pressed against the large diameter part of the conveyance roller 7 by this spring force, and the solenoid 16 is When it is moved away, the bell crank /l rotates in one direction opposite to the arrow d, and is separated from the backup roller 12 and the conveyance roller 7. The relative positions of the respective rollers are arranged as shown in FIG. 4, and when the solenoid 6 is energized and the pick-up roller 2 is at the position indicated by the dashed line in the figure, the sheet is moved as shown in FIG. The sheet is not subjected to the conveying force by the pair of rollers, loses the conveying force when it leaves the paper discharge roller 5, and is stacked on the tray b in the normal posture, that is, the posture 2 in FIG. Next, when the solenoid /6 is disabled, the backup roller /1 is pressed against the transport roller 7 by the spring force, and only the paper feed reference side of the sheet ejected by the paper ejection roller 5 is further moved between the transport roller 7 and the backup roller. :! ,
, / , 2, the sheet is clamped and swept by the second
It will be loaded in the position shown in Figure 3.

Although the desired effect can be obtained even if the linear velocity of the conveyance roller 7 of the unit of the present invention is made the same as the linear velocity of the discharge roller 5, in this embodiment, the conveyance roller 7 is arranged in a stepped manner and in an oblique position. 01 so that the speed at which the paper feed reference side is fed is faster than the paper discharge speed when stacking the sheets. This is to ensure that the sheets are loaded diagonally more reliably, and even with this configuration, the speed at which the sheets are fed diagonally at the end is fast, so the end of the sheet can be discharged and stacked further away, that is, more diagonally. , 1 for discharge (a one-way clutch is disposed between the left roller and the paper discharge roller shaft 5a) and acts to gradually tilt the paper during the discharge If1 operation.

FIG. 6 is a sectional view of a unit q showing another embodiment of the present invention. A small cylindrical portion 7b of a stepped conveyance roller 7a is in contact with the upper paper discharge roller S via a friction roller 6a. Note that the lever 17 is rotatably provided on the shaft of the conveyance roller 7a,
A conveyance roller pair 7C is rotatably provided on a shaft 17a fixed to the lenoma 17 and is in contact with the conveyance roller 7a, so that the rotation of the discharge roller S is transmitted to the small cylindrical portion 7b of the conveyance roller 7a via the friction roller 6a. , transport rollers 7a and 7C
The feeding speed of the sheet sandwiched between the paper ejection roller and S
faster than the speed of the sheet fed out by sandwiching it (, p
direction (circular). To disable this effect, use a solenoid (not shown) to act as shown in Figure 6, and
This is an embodiment in which the lever 17 is turned in the direction shown in FIG.

Figure 7 shows the outer circumferential shape of the conveyor roller rough.The outer circumferential profile is designed to make point contact with the sheet, and the outer circumferential profile is increased by 1. It is something that

In FIGS. S and 6, the driving force for the unit of the present invention (tI in FIG. 3) is obtained from the paper ejection roller S via the friction roller 6 or 6a, but there is no separate pressure. A driving motor may also be provided. Furthermore, as a means of disabling this unit (see Figure 3), the unit (tf
? Even if it is done, it is not within the scope of the present invention.

Figures f and g show the sorting tray of the sorting device of the present invention for promoting chestnut cultivation. Usually, the tray is provided near the paper ejection section with an inclination that allows the ejected sheets to slightly slide back onto the tray. This has the purpose of aligning the ejected sheet sets. Therefore, an alignment guide for sheet sets that are ejected in an oblique position! +1 ■/ is provided in addition to the alignment guide wall/te for the sheet set discharged in the normal position, and if the tray inclination f1 becomes too large, the sheet set in the diagonal position will become like the sheet set in the normal position. Therefore, the extent to which this does not occur, that is, both aligned guide walls/ff.

A tray is shown to be installed at an angle so that /9 can work effectively. In Figure 9, the sheet set in the diagonal position is placed on the alignment guide wall ig, and the sheet set in the normal position is placed on the alignment guide wall 19.
'C' shows a state in which the images are aligned and sorted. arrow f
indicates the direction of paper discharge.

Next, the combined operation of the circulating automatic document feeder and the sheet sorting device of the present invention will be described.

An example of the circulation type automatic document feeder will be described later. When the sensor/39 shown in Fig. 1 and Fig. 1φ used for the explanation detects that 1 set of copies has been completed in the circulation type automatic feeder. , that is, the i-th.

The signal of sensor 139 in the control circuit diagram shown in the figure is the counter/
When the output of the counter/40 is an odd number or an even number, the solenoid/4 (shown in Figure FFJ5, not shown in Figure 6) is kept ON, and when the output of the counter /40 is an odd number, the solenoid is turned ON. Deactivate 16. Solenoid 16 is O
While it is in the N position, the seat is in the normal position, and when the solenoid 16 is OFF, the seat set 3 (second position) is in the diagonal position.
(shown in the figure) is formed, and sorting is performed for each set of copied sheets.

Next, FIG. 1 for explaining an example of a circulating type automatic document feeding device is a cross-sectional view of the circulating type automatic document feeding device, and arrow A is the same as arrow A in FIG.

/θl is the same as in FIG.
It is arranged so that it is tilted downward as it goes in the document feeding direction so that the height becomes lower. The documents discharged by this are stacked in a uniform manner in the sending direction. Also 102,10
A feeding roller 2a rotates the feeding belt lo3 in the direction of arrow V to feed the document. Zarani/III, /θ
lIa is a separation roller, and separation belt 10! ; is rotated in the direction of arrow R, and one raw material a is placed between it and the feeding belt 103 per minute. This feed bell l-103 and separation belt lO5 constitute a separation supply section S 11'. And this power supply 1'1μs is the JJX' on the tray 10/on which the color scheme is tilted downward! ? It is provided near the bottom of 'a.

Further, the 2Vi i sheet path 104 is formed between the guides 107 and 70g, and is a path for moving the original separated between the feeding belt lO3 and the separation belt lθ5 onto the original platen glass 109. . Also the second
Jidopa, S/10 is a guide /// and //, 2
The original is transferred from the platen glass/θ angle to the feeding tray L-
This is a passageway for moving to A10/.

Here, 1st seat pass/10 is %1st seat pass iob
The platen glass 109 end? ;IS
/ 09 a to the separation belt 10 through the outside of the sheet path 106 (i.e., the path bent against the belt)
! ; reaches above. And this seat pass/1
0 separation bell) The upper end of the ios /1O1L is provided at approximately the same position as the circumferential surface of the roller 1011a, and there is a discharge roller /22. /2. ta is attached.

Therefore, the original that is ejected from above the platen glass 109 is
Guided by this sheet path /10, the feed bell l-/θ
3 and the separation bell l-/θri in the direction in which the loaded original boat is sent out (■ direction in the figure) (Ill (R direction downstream 91
1) in the opposite direction (direction R in the figure).
/ It will be discharged to the top. In other words, the direction in which documents are sent out from tray 10/ and the direction in which documents are discharged to tray 10/ are opposite to each other. Further//3. //lI,/
/! ; is a sheet feed roller, roller 113, lt
The document passing through the sheet path 104 between rollers 1 and q is conveyed toward the platen glass 109, and the document passing through the sheet path /10 between rollers 1itt and its is conveyed toward the feed tray 10/. Roughly Ill is a deflection plate, and guide l12
The leading edge of the document is pasted on the top so that it is in contact with the guide 7, and the leading edge of the document that has passed through sheet path/θ6 is pushed aside and passes through, and also moves to sheet path/10 from the platen glass/θ. '+3 can move smoothly because the tip of this deflection plate //6 is pressed by the guide 107. In addition, this deflection plate /14
is a sheet-like material such as Mylar (I°1). Also, //'7.//7a is a conveyance roller, which rotates the document conveyance belt/1g and conveys the document. .

Note that this roller //7 rotates in the direction of arrow H when conveying and setting the original onto the platen glass 109, and when removing the original from the platen glass 109 after five images have been exposed, it receives a signal from the sensor 12S. The bottom of the groove is shaped so that the direction of force and rotation can be changed. Further i/
9. /20. /2/ is the belt presser roller, and the belt /
/g to the glass ioq and Jg by belt l1g
, to ensure the transportation of documents. Furthermore/, :1.2.
/21E1. is a discharge roller that kicks out the document that has passed through the sheet path //θ onto the feed tray 10/. Further 1.23. /, 23eL.

/, 2 da, /, 2! r is a light sensor, /ko3
゜/ko 3a detects the presence or absence of a document on the feed tray/θ, and 7.24' detects the presence or absence of a document on the feed tray/θ. This is to detect the passage of a document inside the scanner. Further, the sensor ias' detects passage of the original within the sheet path iio.

Next, the document separating section will be explained using FIG. 7.2 and FIG. 73. FIG. 12 is a plan view showing the document separating section, and the 13th
The figure is an enlarged plan view of the partition plate. FIG. 14' is a side view showing the document separating section. In FIGS. 12, 13, and the first diagram, /:tA is a partition plate that separates the original before exposure from the original after exposure. Note that one set of the partition plates 1.26 are provided at both ends of the separation supply section S so as to face each other. This partition plate /J6 is supported by a fulcrum /2g on a partition plate arm /27. Also/,! 9 is a thick friction plate, and a gear fixed to the separation roller shaft/30. It is sandwiched between the arm gear / 32 and the partition plate arm 127 held together by the separating roller 10
II. By rotating 1011h, a load is applied to the partition plate arm/27 in the direction of arrow G. That is, the partition plate 7.27 exerts a force to press the document on the supply tray 10/. Here, gear/32, arm 12, and friction plate 1
．． 2? is attached to shaft/31PL. This facilitates document feeding from the supply tray lθl. Immediately tip the bell) 10! ; in contact with the belt lO
The originals p stacked from the top of the tray 10 to the top of the tray 10 are pressed against the belt lO3, and the lowest original can be reliably conveyed IL in minutes.

In addition, a roller 33 is attached to the feed belt 3 to receive the load from the partition plate 1.2, which further increases the force with which the partition plate 1.26 presses the material onto the belt 3. . /36 is a partition plate /21. This is a spring applied between the upper shaft 13ti and the shaft /3S on the partition plate arm 1.27, so that the line connecting the shafts 13ti, i, and is crosses the fulcrum lλg, so that it moves in the direction of arrows E and F. The partition plates 126 are respectively moved. Also partition plate/
The outer circumference of 21 degrees /, 77 has a cam shape, and the shaft /3 is attached to a position where it engages with the cam /37 when the partition plate /26 and the partition plate arm 1.27 rotate in the direction of arrow G.
g, the partition plate/26 is configured to return to the F direction. /39 is a light sensor, partition plate arm /
27 is rotated in the G direction, and from this it can be determined that the yi cycle of document copying has ended.

Next, the driving section will be explained using FIG. 1j.

Fig. IS is a side view showing Fi, the moving part. In the figure, iqi is a motor and /l'λ is a motor pulley.

Also feed roller //3. //'I, //k and the belt /l for transmitting the drive to the discharge roller l here, /22a
13. /'l is a pulley/4t! , /da6゜/is hung on gua. Furthermore, 74' is a clutch that transmits the drive from the motor l'l/ to the conveyance roller //7,
It is possible to switch between forward and reverse rotation. /ll? is a clutch that transmits drive from pulley 1lI-7 to feed roller 10.2 and separation roller 10II-.

As described above, it is possible for the 1ilI4 moving parts to be placed in 61 places without being dispersed.

Next, the operation will be explained.

Belt the tip/, 0! A plurality of originals, which are positioned in contact with and stacked from the belt 103 to the tray lO7, are moved to the feed roller /0 by a signal from the main body copy start button (not shown) turned ON.
2#/0-2 a and min 1i6 D-ra 10J/θ
The sheets tIa begin to rotate in opposite directions, are separated, and are fed into the sheet path iot one by one.

At this time, feed roller //3. The feed speed of //'l is the feed roller 102. Since the feeding speed is twice as high as that of IO,2,tL, there is always a gap between the trailing edge of the document fed after separation and the leading edge of the next document. At the same time, when the sensor 1lIO provided along the sheet path lθ6 detects this gap, the feeding rollers 102, 101e and the E rollers 103, 10
The rotation of 3B stops.

The leading edge of the document fed here has already been moved by the feed roller.
3. //'I, the document is conveyed by the feed rollers /, i, t, 1ilI, and the trailing edge of the document is conveyed by the sensor 1.2 provided on the downstream side of the sheet path iob.
A timer circuit starts working from the moment when 'l is detected, and after a predetermined period of time has elapsed, that is, until the original is conveyed to the original reference position on the platen/θ, the roller //7 stops and the original is transferred to the platen glass ioq. It is set in the upper predetermined position and stops. Then, the exposure operation by the lamp B on the copying machine main body side is started. Next, when the exposure completion signal is received from the main body, the conveyance roller l1 starts to rotate in the opposite direction in the direction 1), and the belt l1g
The original is ejected onto the sheet path //θ from above the platen glass. Then, the leading edge of the document passing through sheet path iiθ is roller / / + of sheet path /10.

/15 At the same time as detected by sensor 12j provided on the downstream side, feeding roller lθ and separation roller ioq start rotating in response to a signal from sensor /2k, and the next document is fed. At the same time, the conveyance roller ii7 changes its rotation direction to the H direction. The original that has passed the sheet path /10 is kicked out by rollers /2.
They are stacked on the partition plate 26 above the feeding tray lθ/. At this time, the feed tray 10/ is moved in the direction of the separating section JJ<'
I('J is sloped downward, so
Laura/, 22. / After being kicked out by Coco a, the originals are aligned with their leading ends abutting the separating roller lθ3a.

In addition, lSO is a static elimination needle, and j1 passes through sheet pass/10.
The function is to eliminate static electricity from the first port of the raw materials that have arrived at 74 L/W, and to load the W, products smoothly onto the feeding tray 10/. This operation is repeated thereafter.

Here, as described above, the document to be discharged is discharged by the conveyance force of the rollers //II and //. Also, the next document will be sent to Roller//3. //4! and conveyor belt/1
g, I(12) The document is conveyed onto the platen glass 109 by the feeding force.At this time, the leading edge of the ejected document touches the sensor/2S
Even if the next document is detected and reaches the platen glass 109 by the rotation of the belt 103, /θS, if the document size is large, the trailing edge of the ejected document will not reach the platen glass 109.
There are still IJs left above. However, in this embodiment, since the belt iit is formed of a material having a high friction coefficient such as urethane rubber, the frictional force between the belt //g and the original f5 reaching the platen glass 109 is the frictional force between the original document. The discharged original from above the platen glass 109 and the carried-in original reaching the platen glass 109 are conveyed in respective predetermined directions while sliding past each other. As a result, from the separation supply section S to the raw material 81
The interval for sending out -1°16 can be shortened.

Next, a description will be given of the case where the last page of a plurality of original documents is to be fed. There is a partition plate l-coro just above the last page. When the last page is fed, the partition plate /26 comes into contact with the feed belt lO3, so the friction between them causes the partition plate /2A to rotate in the direction of arrow E, and the force of the spring /36 causes the two points in the figure to rotate. The state becomes f2J +Wj.

Here, since a load is applied to the partition plate arm 1.27 by the friction plate 19 in the direction of arrow G, the partition plate arm 1.27
When 6 is folded, it starts rotating in the G direction. The feed roller tOa and the separation roller toy each stop when the trailing edge of the document is detected by the sensor /lIθ installed downstream of the sheet path i'ot, so the partition plate arm /27 stops when the last page is fed. If it is fed, it will break during rotation after rotation.
Each time it stops at position t+4. When the last page is fed, that is, the partition plate arm /27 is detected by the sensor /39, the last page returns to the feed tray lO1 after exposure, and the feed roller lθ continues until the l cycle is completely completed.
If λ and the separation roller lθ3 are stopped and started rotating at the first page of the -1st cycle, the partition plate 12A will be placed on top of the last page.

As explained above, unlike a printer, a collator, a shaker tray, etc., the sorting device according to the present invention, in the present invention, alternately collects the groups of copied sheets in the vicinity of the floating root discharge port. In addition to the normal discharge, one side of the copied sheets is further energized to stack them diagonally, and the copied sheets are discharged and stacked in the normal position to sort the copied sheets, so the sorting method is simple and the device is easy to use. Since one side of the copied sheet is simply conveyed by the rollers, it does not require a large space or a complicated configuration, and has a compact and simple configuration. Therefore, it is possible to achieve inexpensive, energy-saving, and reliable sorting. I was able to provide the terms. Circulation type original 1. Even better effects can be provided by cooperating with a copying machine equipped with an automatic feeding device.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the exterior of a copying machine equipped with a circulating automatic document feeder, and FIG. 2 is a plan view showing the state of paper being ejected to a tray.
FIG. 3 is a perspective view of the paper discharge section of the copying machine, FIG. 1 is a cross-sectional view of the unit of the present invention, and FIG. S is a perspective view of the unit of the present invention.
6 is a cross-sectional view of another embodiment of the present invention, FIG. 7 is an external view of some rollers of the present invention, FIG. FIG. 1O is a plan view showing the state of paper discharge to the tray in the embodiment of the invention. FIG. A cross-sectional view of the automatic document feeder Hama, Figures 72 and 73 are 1'1 of the circulation type automatic document feeder.
Figure 74' is a plan view of the ifJ section, Figure 74' is a side view of the separating section of the circulation type automatic document feeder, and Figure IS is the drive Q of the circulation type document feeder.
FIG. 3. Sheet set in diagonal position l.. Unit 6.
・Friction roller 7・・Transport roller g・・Unit base lO@・Arm 12・Threat backup roller /'%
φ medium arm / 6φ・lenoid / 7 fist・lever /
g * I+ alignment guide wall. Patent Applicant Canon Co., Ltd. Agent Arai - Part 1 371 - Figure 3 Figure 5 Figure 8 Figure 9 Sono

Claims (1)

[Scope of Claims] l In a method of sorting copied sheets near the paper discharge port of a copying pine, a group of copied sheets is alternately divided into a piece f19 of a copied sheet for each group of copied sheets. A method for sorting sheets characterized by sorting the copied sheets by discharging and stacking them in an oblique position in which the sheets are discharged under a further bias in addition to the normal output, and in a normal position in which they are normally discharged. J (1) A sheet system characterized in that a device for sorting copied sheets in the vicinity of a paper discharge port of a floating base is provided with a device for selectively holding and conveying a group of copied sheets only on one side. Sorting is done by device 0