JPS58172137A - Sortable feed device for paper leaf - Google Patents

Abstract

PURPOSE:To feed paper leaves thrown in as a whole one by one separtely in turn by providing a temporary stopping means to deliver paper leaves once stopped on the upper stream side of the contacting part between a take-out member and a separating member to the contacting part. CONSTITUTION:Manuscripts P bundled in plural sheets and thrown in an accumulation chamber 7 are held and kept waited on a placing table 8 by a stopper 25 projected on the slanted lower end side of side-guide plates 9, 9 and the table 8 with their both side ends and the top parts positioned. At this stage, the manuscripts P thicker than H are prevented from being inserted into the chamber 7 by overset-prevention members 45, 45 distanced by H from the table 8 for preventing erroneous operation. Meanwhile, the stopper 25 is gradually brought down, and the manuscripts P fall down step by step by their weight, while the top of the uppermost manuscripts P is brought in touch with the upper face of a sliding member 48, and bitten into the contacting part between take-out rolls 11 and 11 and separating rolls 12 and 12 oppositely rotating to be taken out one by one.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention provides a method for separating and feeding paper sheets so that paper sheets input in bulk, such as copy manuscripts, can be separated and fed one by one. Regarding the sending device.

[Technical background of the invention and its problems]

2. Description of the Related Art Conventionally, as a separating and feeding apparatus for this type of paper sheets, the apparatus shown in FIGS. 1 and 2 is known.

This is provided with a stacking chamber bi whose bottom is a loading table & which can support a plurality of paper sheets P all at once in an inclined state, and (2) separated from the take-out rollers c and c near the inclined lower end of the loading table a. As shown in FIG.
As shown in the figure, they are arranged so as not to face each other.

Then, the paper sheets Pi in the stacking chamber are loaded in bulk with their tips touching the take-out roller CTC, and the take-out rollers c, c
As the separation roller d rotates, the topmost sheet is taken out, and the second and subsequent sheets are prevented from being taken out by the reverse rotation of the separation roller d.

However, in this conventional type VC, the leading end of the paper sheet P is inserted directly into the groove in which it reaches the contact area between the take-out roller C+e and the separation roller d. Therefore, even if the leading edges of the paper sheets P are aligned in advance when inputting them all at once, the leading edge of the paper sheets P to be taken out later will be the leading edge of the paper sheets P to be taken out earlier. There is a situation in which the tip of the paper sheet P protrudes from the edge of the paper sheet P and is likely to be misaligned.There are cases where multiple sheets are taken out at the same time instead of being taken out sequentially starting from the endmost sheet P, especially when a mixture of sheets with different coefficients of friction is input. There are problems that are becoming more noticeable.

In addition, the conventional type has take-out rollers e, e and separation roller d.
Since they are not facing each other, there is a problem in that the pressing force against the separation roller d is weak and the second and subsequent sheets P' cannot be separated completely.

[Purpose of the invention]

The present invention has been made based on the above-mentioned circumstances, and its purpose is to make it possible to properly align the leading edges of paper sheets that are collectively fed into a stacking chamber, to obtain a good separation effect, and to ensure that the leading edges of paper sheets that are loaded into the stacking chamber are aligned at the same time. The present invention attempts to provide an entire apparatus for separating and feeding paper sheets, which can separate and feed paper sheets one by one from a set of sheets.

[Outline of the invention]

The present invention is provided in such a manner that the take-out member and the separating member are in contact with each other, and the paper sheets that are thrown into the stacking chamber at once are stopped at the upstream side of the contact area between the take-out member and the separating member, and then the paper sheets are removed. A temporary stop means is provided for discharging to the contact portion.

[Embodiments of the invention]

Hereinafter, the present invention will be described in FIGS. 3 to 15 (A) to (IJ).
With reference to one embodiment shown in '? =52 clear. FIG. 3 shows the separating and feeding device 1 of the present invention. ? An example of Tone's automatic manuscript supply unit is shown in full. In the figure, 1 is the main body of the copying machine.
A separating and feeding device 2 is attached to the upper part of the copying machine main body 1. Then, the separation and feeding device 2 takes out the manuscripts P, which are a large number of paper sheets input at once, one by one starting from the topmost one and transfers them to the copying machine main body 1 via a pair of transport rollers 3, 3. The document is fed between the document glass 4 and the document feed belt 5 which is provided with a button on the upper surface side.

The separating and feeding device 2 has the following configuration.

That is, in the main body 6 of the apparatus (not shown in detail), a mounting table 8 is provided in an inclined state, which forms a bottom portion of a stacking chamber 7 that can accommodate a plurality of documents P at once in an inclined state. On the upper surface side of this mounting table 8, a pair of side regulating plates 9 are provided which are slidable in the feeding direction (5) in the direction perpendicular to the document P depending on the size of the document P.
9 is self-configured. Also, at the top of the slope, there is a document P.
When setting the document P in the transverse direction, it can be rotated and stored on the mounting table 8 as shown by the two-dot chain line in FIG. 3, and when setting the document P in the longitudinal direction, as shown by the solid line in FIG. almost 180
A document support member 10, which can be rotated 0 times and forms an extension of the mounting table 8, is pivotally mounted.

However, on the inclined downstream side (lower end side) of the accumulation chamber 7, there are a take-out roller (forward rotation roller) 11, 11 as a take-out member for taking out the document P in the accumulation chamber 7, and this take-out roller 11,
A separating roller (reverse roller) J, ? serves as a separating member that separates the second and subsequent documents P taken out by 11. ,7
．． ? is installed.

Next, the drive system of the above-mentioned take-out rollers 11, 11 will be explained in detail. 1. The take-out rollers 11 and 11 are attached to a common take-out roller shaft 13, and the take-out roller shaft 13 is located opposite to the center of the stacking chamber 7 in the vertical direction.
A rotatable arm 15°15 is attached to a drive shaft 14 that is horizontally suspended (6).
Both ends are completely held on the free end side. Further, a driven stripe rocket 16 is connected to a midway portion of the take-out roller shaft 13 via a one-sided clutch (not shown).
A drive sprocket 17 is attached to the middle of the drive shaft 14, and a chain 18 is stretched between the two sprockets 16 and 17. When the drive shaft 14 is driven by a motor 19, the take-out rollers 11 and 11 attached to the take-out roller shaft 13 are rotated in a predetermined direction.

On the other hand, the separation rollers 12.12, which can be in rolling contact with the take-out rollers 11.11, are rotatably attached to a horizontally suspended separation roller shaft 20 via bearings (not shown), and each has a limited power transmission mechanism, which will be described later. The rotating force of the separation roller shaft 20 is transmitted through 50f. Further, a driven stripe rocket 23 is attached to one end of the separation roller 20 and interlocks with the drive sprocket 2 attached to one end of the drive 14 via a chain 22.
The separation roller shaft 20 and the take-out roller shaft 13 are driven simultaneously as the drive shaft 14 rotates.

Further, at the lower end of the slope of the stacking chamber 7, a strike plate 425 for regulating the leading edge position of the originals P input at once through all the slits 24 formed in the loading table 8 is configured to protrude and retract. The inserted paper sheet P is this stock i4'25,
They are stacked on the mounting table 8 with the leading end and both ends restricted by the side regulating plates 9°9. Then, by pressing the start button 27 provided on the control panel 26 of the copying machine, the stocker 25 is ejected out of the stacking chamber z as will be described later, and the IJU document P is taken out and transferred to the rollers 11 and 11 and the separation roller. 12.It is designed to be emitted towards the contact area with 12.

As shown in FIG. 4, the separation rollers 12, 12 face the document transport path 29 through a hole formed in the horizontal guide plate 28, which is integrated with the placing table 8. Roller 11. The document P taken out through the lif is guided along the upper surface of the horizontal guide plate 28 with its leading edge to the contact portion of the pair of transport rollers 3, 3.

Further, the take-out roller 1 is
The distance between the contact portions of the separation rollers 12 and 12 is set to be smaller than the size of the smallest document P, and there is a slope between the take-out rollers 11 and the upper conveyance roller 3. An upper guide plate 30 for regulating the amount of deformation of the document P is disposed in this state.

Further, as shown in FIGS. 5 and 6, the tool 'e25, which can be freely projected into and retracted into the accumulation chamber 7, is attached to a support member 32 rotatably provided below the back surface of the mounting table 8 via a support shaft 31. installed. On the pivot end side of the support member 32, there is a tfL.
is integrally provided with an action receiving part 32a extending at right angles, and a spring 33 is connected to the tip of this part,
The support member 32 is always urged (9) clockwise in the figure, that is, in the direction in which the stopper 25 projects into the accumulation chamber 7. Further, the midway portion of the action receiving portion 32h is in sliding contact with the circumferential surface of the eccentric cam 340, and as the eccentric cam 34 rotates, the support member 32 is subjected to the force of the spring 330 to resist the force 7. to rotate the stopper 25 counterclockwise in the direction of removing it from the accumulation chamber 7 (
(It has become.

The eccentric force 1134 rotates to move the support member 32 at a predetermined speed so as to gradually pull out the stopper 25, and as shown by the two-dot chain line in FIG. The distal end portions are shifted in one order of steps from the side that is earlier taken out by the rollers 11°11, that is, the one above.

On the other hand, the spring 33 that constantly biases the support member 32 is set to a biasing force that overcomes the weight of the documents P when the number of documents P in the stacking chamber 7 reaches several sheets. When the number of originals P reaches several sheets, the action receiving portion 32a of the support member 320 comes into contact with the eccentric cam 34, the tip of the stopper 25 protrudes (10) into the stacking chamber 7, and the originals P are placed on the mounting table. By continuously doing this, the original P is vibrated to the fullest, and the leading edge of the original P is taken out and smoothly guided to the J-ra 11, 11 side. The reason why the vibration is started when there are only a few originals P in the stacking chamber 7 is that if there are more than a few originals P in the stacking chamber 7, it is difficult to take out the originals P even if the vibration is not full. This is because the leading edge of the succeeding document P is guided toward the take-out roller 11 by the frictional force caused by the vibration.

Note that the eccentric cam 34 of the temporary stop mechanism 35 which also serves as vibration imparting means and the conveyance roller pair 3 configured in this manner
, 3 are driven by the same motor 36 (shown in FIG. 3) as the lower conveyance roller (turbulence roller) 3.

In addition, as shown in FIG. 7A2, one of the arms 1515 supporting the take-out roller shaft 13 has a screw (not shown) which is rotatable via a support shaft 37 diagonally above the pivot end side of the arm 1515. Therefore, the force is always in the opposite 11♀ meter direction, that is, one end is 38h.
A document detection lever 38 is provided in such a state that the document P is in contact with the uppermost document P in the stacking chamber 7 . When one end 38a of this document detection lever 38 falls into the hole 39 of the mounting table 8 when all the documents P are taken out, as shown by the two-dot button line at the opening in FIG. The configuration is such that the switch 40 is operated, so that "no document" can be detected.

Further, a substantially L-shaped actuating body 42 is swingably attached to the spindle 37 of the original title detection device 41 configured as described above, and one end thereof is connected to the microswitch 40.
A pin 43 is formed in the protrusion 15a, and the other end thereof overlaps the protrusion 15a formed at the pivot end of the arm 15 and protrudes from the actuating body 42. 44. As shown in Figure 7, if for some reason the take-out roller 1
1.11 and the separation roller 12.12, the number of documents P that cannot be separated is bitten by the separation roller 12.12.
12 and the take-out roller 11.11 exceeds a certain value, the arm 15 rotates about the drive shaft 14 more than normal, and the actuating body 42 closes the micro switch 4.
I'm looking forward to operating 0. In addition to the above-mentioned "no document" signal, an "abnormal removal" signal can be obtained by the operation signal of the microswitch 40.

Further, as shown in FIG. 7, a protrusion 15b is formed on the lower surface of the pivot end side of the arm 15.15, and is opposed to the upper surface of the mounting table 8 at a distance M of H. An overset prevention member 45.45f is configured to limit the thickness of the originals P accumulated in the document sheet 7 to within the dimensional range H. ￥
As shown in FIG. 8, the distance A to the outer periphery of the take-out roller 11.11 in the direction perpendicular to the mounting surface of the mounting table 8 is the distance H from the mounting surface to the overset prevention member 45°45. yo) It's set so that it gets bigger. Furthermore, a horizontal portion 46 of dimension B formed by the horizontal guide plate 28 is formed between the inclined lower end of the mounting table 8 and (13) the contact portion of the take-out roller 11.11 and the separation roller 12. By providing the horizontal section 46, the amount of original documents in the collection chamber z, which was limited to 20 to 30 sheets in the conventional system, can be reduced to 80 to 100 sheets, and a good separation and feeding operation can be performed. It looks like this.

Note that the mounting table 8 is provided at an appropriate angle θ of 30° to 75°, and has a guide surface 47 for the document from the stacking chamber 7 to the contact area between the take-out rollers 11, 11 and the separation rollers 12, 12.
That is, it is composed of 2,000 planes connected at an angle smaller than the portion 1i1800 formed by the upper surface of the mounting table 8 and the upper surface of the horizontal guide plate 28.

Furthermore, as shown in FIG. 9 and FIG.
A low friction coefficient member 48 such as a Mylar (trade name) sheet is provided on the upper surface of the horizontal guide plate 28 near the contact portion with the horizontal guide plate 28 . This sliding member 48 has one end protruding to the back side of the mounting table 8 through a through hole 49 formed at a bent portion at the boundary between the mounting table 8 and the horizontal guide plate 28 (14). In this state, the leading edge of the document P is not caught.

Next, referring to FIG. 10, the limited power transmission mechanism 5 transmits the entire shaft torque 7 within a certain range to the separation roller 12.
The configuration of 0'ft will be explained. The separation roller 12 is attached to a resin-made portion (U roller boss 5) that is rotatably fitted onto the separation roller shaft 20, and a spring joint 52 is located on the one end face side of the separation roller boss 5. 1190 - is externally fitted onto the shaft 20. One end of this spring joint 52 is fixedly held by a spring support member 53 fixedly attached to the separation roller shaft 2o, and the other end of the spring joint 52' (7) is separated. The roller boss s1 (cylindrical portion 51a protruding from the D-side end face) is fitted onto the outside with its inner diameter portion tightened.

And the inner diameter part of the spring joint 52 and the separation roller number? The entire axial torque of the separation roller shaft 20 is transmitted to the separation roller boss 51 to which the separation roller 12 is attached by the frictional force with the outer peripheral surface of the cylindrical portion 51a of the separation roller shaft 5).

Note that 54 in FIG. 10 is a stop ring that restricts the movement of the separation roller death 51 toward the side opposite to the spring joint 52.

In addition, the separation rollers 12, 12 are made of urethane rubber material with a hardness of 80° in order to keep the reverse return force constant. Furthermore, the surfaces are well-finished to prevent paper waste from adhering to the surface. It is now possible to deal with this as well. Further, the take-out roller 11.11 is made of a natural rubber material with a high coefficient of friction, and is designed to reliably feed the document P to the contact portion with the separation roller 12.12.

Next, the operation of the separating and feeding device based on the above configuration will be explained in the first section.
1 will be explained including FIGS. 1 to 15 A to 15. 1. First, a plurality of documents P are piled up and put into the stacking chamber 7 at once. At this time, the document P placed in the stacking chamber 7 pushes aside the document detection lever 38 and sets the microswitch 4o in a non-pressed state, thereby fully detecting the presence of paper. The document P placed in the stacking chamber 7 is secured to both sides and the leading end by the side regulating plates 9, 9 and the stopper 25 protruding toward the inclined lower end of the placing table 8. It is held in the positioned state on standby. (Situation in Fig. 15 A) Note that when the originals P are loaded all at once, the over-set prevention member 45, 45 located at a distance H from the mounting table 8 forces the originals P with a thickness of H or more to Insertion into the accumulation chamber z is (physically) prevented to prevent erroneous operation.

Next, by pressing the start button 27 on the control armpit 26, the eccentric cam 34 rotates and the temporary stop mechanism 35
The stock z4' 25 gradually descends. therefore,
The document P whose leading edge is aligned on the upstream side (front side) of the contact area between the take-out roller 11.11 and the separation roller 12.12 is moved along the sloping surface as the stock 925 descends, along the two-dot chain line in FIG. It falls in stages due to its own weight as shown in .

Then, the top manuscript Pi or the original near it (17
) The tip of the document PX is connected to the take-out roller 11.11 and the separation roller 1.
The automatic force of the document P contacts the top surface of the sheet material 48 made of Mylar sheet provided just before the contact point 2.12, and the two pairs of take-out rollers 11.11 and separation roller 12,
The take-out roller is caught in the contact portion with the drive sprocket 17, the chain 18, and the sprocket 16. 11° 11 rotates in the feeding direction at a low speed of about 100"/l, ec. At the same time, the drive sprocket 21, chain 22, driven sprocket 23, spring joint 52, separation roller boss 51 (through the separation roller 12) On the other hand, the Stritz 925
While the 0-inch pick-up roller 11.11 and the separation roller 12.12 are not rotating, they are driven up and down by a drive (not shown) to repeatedly move up and down until they come into contact with the lowest document P on the loading table 8, giving vertical vibration to the loading table. The original group P on the top 8...all the originals P... are separated by the force of their own weight (18) in a stepwise manner. (Status shown in Figures 5 and 15) At this point, at the moment when the top paper PI or the paper Px near it is not completely bitten by the contact part between the take-out roller 11.11 and the separation roller 12.12, the take-out roller The frictional rotational force transmitted by 11.11 to the separation rollers 12, 12 is transmitted via the spring joint 52 to the reverse frictional rotational force of the separation roller 12.12, and the take-out rollers 11, 11 rotate in the forward direction as drive rollers. Moreover, the separation rollers 12, 12 rotate in the forward direction as driven rollers. If this operation is continued, the outer periphery of the take-out roller 11.11 made of a natural rubber material with a large coefficient of friction will reliably draw the document P or Px into the contact area between the take-out roller 11.11 and the separation rollers 12, 12. (Fig. 15) State: Note that due to the difference in frictional resistance, when one sheet is taken out, the separation roller moves in the direction to take out the original Pk as shown in 1512, and when two or more sheets are taken out, as shown in Fig. 15. The original P is rotated in the direction to return it.

Then, if one sheet is reliably taken out by the cooperative action of the two pairs of rollers, it is fed by a predetermined amount by the action of the take-out rollers 11, 11,
The leading edge of the document P bites into the contact portion of the pair of transport rollers 3 and 3 provided in front of the take-out and separation rollers 11 and 12, and is fed by a length longer than the length L of the contact portion of the rollers.
．． It waves between 12 and 3,3 and stops once with the tip misalignment corrected. (Status shown in Fig. 15) Here, feeding between the take-out rollers 11, 11 and the separating rollers 12, 12,
And describe the separation effect. I) Ideally, as the collar 25 descends, the uppermost document 2 on the placing table 8 should bite into the contact area between the two pairs of take-out rollers 11.11 and separation rollers 12.12. (Fig. 11) However, there is no guarantee that originals P of different paper quality will be placed together or that the originals P will be separated in an ideal step-like manner (the uppermost original
The document Px located below the take-out roller 11.11
There is a very rare chance that the separation roller 11.11 and the separation roller 12.12 may bite into the contact area (FIG. 12). The action results in forced separation.

In reality, two or more originals P are transferred to roller 1 in any form.
At the moment when the document 1.11 and 12.12 are in contact, the take-out roller 11.11 receives the frictional conveyance force transmitted to the top document PXI and the conveyance force of the top document pxt, and is frictionally conveyed. Px2 and P'X2 (or Pxs
) is transmitted as a frictional conveying force to the upper surface of the document PR in contact with the shade dividing roller 1212. However, on the other hand, a return force is transmitted to the document PR from the separation rollers 1.2 and 12, which are transmitted via the spring joint 52 and are constantly subjected to a reverse rotational load with respect to the pick-up and conveyance direction. This can be achieved by setting the frictional conveyance force transmitted to the document PR by the separation rollers 12, 12 to be greater than the frictional conveyance force between the documents received from the take-out rollers 11, 11.
Therefore, the original aPR is returned toward the mounting table 8 by the action of the two separation rollers 12 and 12, and the original aPR above the original Px+
1PX2' (PX3) advances in the take-out direction by the action of the take-out row (21) 11.11.

Here, the reversal circumferential speed VR of the separating rollers 12 and 12 is set to approximately three times VF with respect to the circumferential speed Vy of the take-out rollers 11, 11, and the document pxt in contact with the take-out rollers is 10 Assuming that the document PR is moved forward by about 30 minutes, the document PR in contact with the separation roller 12.12 will be returned approximately 30 minutes. However, if the distance t from the contact portion of the take-out rollers 11, 11 and the separation rollers 12, 12 to the leading edge 1 of the document Pg at the moment when separation is started is 30 degrees or less (,), the return amount of t - x is The amount of return is transmitted to the original PX2 (or Pxs) located above PR, and the amount is returned instantly.

This is repeated to perform the separation action, and the take-out roller 11.
It will come into contact with the lower surface of the original PXI which is in contact with 11. The separation rollers 12 and 12 continue to try to return the PXI original, but a spring joint 52 is interposed between the separation rollers 12 and 12 and the separation roller shaft 20. is the take-out row 211, 11 (
22) Receives a frictional conveyance force in the take-out direction from the original Px+
From the bottom part 1, the separation roller 12, which receives the frictional driving force through the sliding joint 52, tries to receive the force of the separation roller 12, but the take-out roller 1 receives the force.

Since the frictional conveying force transmitted by 11 to the upper surface of the original PXI is much larger than the frictional force transmitted from the spring joint 52 to the separating roller 12.12, the original PXI is taken out and conveyed as the take-out rollers 11.11 rotate. Here, the frictional rotational force transmitted by the document P
The lower surface of the uppermost document PXI works in cooperation with the take-out roller 11.11 without slipping against the separation roller 12.12.
Only (PI) is reliably separated from the roller contact portion and taken out and conveyed.

In FIGS. 4 and 14, which describe the separation capacity, the take-out roller 11.1 shows the state immediately before the start of separation.
The distance iL from the contact area between the separation roller 1 and the separation roller 12.12 to the contact area between the pair of transport rollers 3 and 3 located in front of the separation roller 12 and 12 in the transport direction,
The distance from the tip of the document pot caught in the contact area of the take-out rollers 11, 11 and the separation rollers 12, 12 in a multi-feed state to the roller contact area O is tl + t2 + t3・
... An, assuming that the circumferential speed of the take-out rollers 11, 11 is VF, and the circumferential speed of the separation rollers 12, 12 is VR, and temporarily sets 3VF=VR, then 3 (L tl )>t2 +t3@-...
...Separation action takes place in the dip range that satisfies Am. (See Fig. 15, Fig. 13, and Fig. 14) The completely separated original PX+ is fed by a predetermined amount, and the leading edge of the original PXI bites into the contact part of the pair of transport rollers 3 and 3 and stops, and there is a time delay and the transport roller The pair 3, 3 rotates at a circumferential speed that is three times or more the circumferential speed of the take-out roller 11.11, and is driven in accordance with a predetermined timing such as image processing. (Conditions shown in Figure 15, G and H) Here, the pair of transport rollers 3, 3 are synchronized with the document feed belt 5, which is provided facing the document glass 4 and guides the document to a predetermined non-light surface, and at almost the same speed. Rotate and complete the transport operation. Then, as shown in the 15th turn, the second sheet enters the standby state.

Separate the take-out roller 11.11 and the I-ra 12.1.
If a document jam occurs while contact is maintained between arms 1 and 2, the roller contact trace means (not shown) can be operated.
By 5.15f automatic deflection, the contact is broken and the entire original can be easily pulled out toward the mounting table 8. At this time, one or more documents P are present on the mounting table 8, but the contact between the rollers 11 and 12 has been cut off, making it impossible to separate and feed them. The protrusion 15a provided at one end rotates the actuating body 42 to forcibly detect an abnormal state, thereby preventing erroneous operation.

In the above-described embodiments, the case where the separating and feeding device of the present invention is used for automatic document feeding of a copying machine has been described, but it goes without saying that the present invention is not limited to kneading.

The analogy can also be used for an automatic teller machine that inserts banknotes in bulk.

In addition, although the guide surface for paper sheets from the stacking chamber to the contact area between the take-out roller and the separation roller (25) is formed from two planes connected at an angle smaller than 180°, it is possible to form three or more planes or an arcuate surface. Good too.

Furthermore, it is clear that the take-out roller and separation roller do not have to be in the form of rollers; belts or the like can also be used. Others It goes without saying that the present invention can be modified in various ways without departing from the gist of the invention.

〔Effect of the invention〕

As explained above, the present invention is provided in such a manner that the take-out member and the separation member are in contact with each other, and the paper sheets thrown into the stacking chamber at once are stopped upstream of the contact area between the take-out member and the separation member. A temporary stop means is provided for later releasing all the paper sheets to the contact area.

Therefore, it is possible to properly align the leading edges of the paper sheets that have been collectively input into the stacking chamber, and also to obtain a good separation effect, so that the paper sheets can be reliably separated and fed one by one starting from the endmost sheet.

(26) In addition, since the temporarily stopped paper sheets are discharged step by step into the contact area in the order in which they are taken out, even if all paper sheets with different friction coefficients are mixed and thrown in at once, the state is suitable for taking out one sheet. The paper sheet can be discharged to the contact portion between the take-out roller and the separation roller, which has the effect of making it possible to more reliably take out one sheet of paper.

[Brief explanation of drawings]

Figures 1 and 2 show the conventional ell k.
The figure is a schematic side view, Figure 2 is a front view of the narrow part, Figures 3 to 15 (a) to 15 show an embodiment of the present invention, and Figure 3 shows an embodiment of the invention installed in a copying machine. Schematic perspective view of the condition, 4th
The figure is a schematic vertical side view of the main part, Figure 5 is a schematic side view of the temporary stop mechanism, and Figure 6 is an explanatory diagram of the vibration application operation by the temporary stop mechanism when there are several sheets. , Figure 7 (
A) is an explanatory diagram showing the relationship between the overset prevention stage and the sheet stacking section, and FIG. The figure is an explanatory diagram showing the relationship between the bristles in the portion from the stacking section to the take-out section, FIG. 9 is a perspective view showing how the sliding member is attached to the paper sheet guide surface, and FIG. 10 is a limited power transmission An exploded perspective view of the mechanism, FIG. 11 is a diagram showing the ideal state of paper sheets after the temporary stop is released, FIG. 12 is a diagram showing the state of paper sheets that can actually occur, and FIGS. 13 and 14. The figures are explanatory diagrams showing the variation between paper sheets and the separation and reversal ability during multiple feeding, respectively, and FIGS. 15(A) to 15(IJ) are explanatory diagrams showing the state of the sorting and feeding operation of paper sheets. 2... Separation and feeding device, P... Paper sheets (manuscript), 7.
... Accumulation chamber, 8... Placement table, 11... Removal member (
take-out roller), 12... separation member (separation roller),
35... Temporary stop mechanism, 45... Overset prevention member. Applicant's agent Patent attorney Takeshi Suzue Kin'yo Figure 1 Figure 3? im 1972-172137 (9) Fig. 7 Fig. 11 Fig. 12 Fig. 14 Fig. 15 Fig. 15 Fig. 15 Patent officer Haruki Shimada Tono 1, Indication of the case Patent application No. 57-52022 2, Invention Name of Paper Sheet Separation and Feeding Device 3, Relationship with the Amendment Case Patent Applicant (307) Tokyo Shibaura Electric Co., Ltd. 4, Agent

Claims (1)

[Scope of Claims] (1) A stacking chamber capable of accommodating a plurality of paper sheets at once in an inclined state, and a take-out member provided on the inclined downstream side of the stacking chamber to take out the paper sheets in the stacking chamber. , a separation member that is provided in contact with this take-out member and separates the second and subsequent sheets that overlap the paper sheets taken out by the take-out member; A paper sheet characterized by comprising a temporary stopping means for stopping the contact portion between the take-out member and the separating member on the upstream side and then releasing the sheets to the contact portion stepwise in the order of removal. type separation feeding device. (2) The temporary stop means swings a number of times for each take-out operation of the take-out member, and also serves as a vibration imparting means that applies vibration to the paper sheet after the pause is released. A paper sheet separation and feeding device according to claim 1, characterized in that: (1) (3) The accumulation chamber is formed between a loading table capable of supporting paper sheets in an inclined state and an overset stop member provided opposite to the loading surface of the loading table. and the distance to the outer surface of the take-out member in the direction perpendicular to the mounting surface of the mounting table is set to be larger than the distance from the mounting surface to the nearest overset prevention member. A separating and feeding device for paper sheets according to claim 1.