JP6405434B1 - Paper sheet separating and conveying apparatus, paper sheet separating and conveying method, and paper sheet handling apparatus - Google Patents

Abstract

A highly reliable separation operation is realized in a simple and inexpensive configuration in order from a first sheet in a multi-fed sheet while using a single motor. A feeding unit that feeds a sheet from a sheet bundle by a feeding roller, a separating unit that performs a separating operation of the sheet, and a front position of the sheet bundle in the feeding unit when in an initial position. A regulating member 300 that is pressed and displaced when the sheet bundle is displaced in the transport direction, and operates after at least the first sheet of paper has passed through the separating unit and remains in the separating unit together with the regulating member. And a regulating member return mechanism 310 that returns the subsequent paper sheet to the upstream side, and the feeding portion provides at least one relative rotation section 80 between the feeding roller and the upstream transmission member 60 to transmit the driving force. A drive transmission delay mechanism D for delaying is provided. [Selection] Figure 1

Description

  The present invention relates to a paper sheet separating and conveying apparatus, a paper sheet separating and conveying method, and a paper sheet handling apparatus having a separating function for preventing double feeding.

A banknote handling apparatus provided with a mechanism for picking up one sheet from a stack of banknotes in a stacked state and feeding and transporting them is equipped with a multifeed prevention mechanism for preventing multifeeding of banknotes.
For example, in banknote handling machines such as banknote depositing machines, banknote counting machines, various vending machines, money changers, etc. that accept banknotes one by one from a banknote set in the depositing unit Since a complicated deposit process and counting process are hindered, a double feed prevention mechanism is provided.
The double feed prevention mechanism has a separating roller pair that prevents passage of the second and subsequent bills when the bill fed out by the feeding roller that rotates in contact with the bottom bill of the bill bundle is in a double feed state. There is. This separation roller pair includes a feed roller that is rotationally driven in the paper feeding direction, and a brake roller that is disposed on the upper side of the feed roller and made of a high friction material that nips the feed roller.
When the feeding roller rolls out the bottom banknote of the banknote bundle set in the depositing section, it enters the separating section in a double feed state in which the second and subsequent banknotes are bundled, but the front end face of the banknote bundle at this time It is necessary to improve the separation accuracy that the shape seen from the side is an acute angle (wedge shape) with the leading edge of the first banknote as the apex.

For example, Patent Document 1 discloses a scraper unit that is movable up and down between a feeding roller that feeds one sheet at a time in contact with the bottom of a sheet bundle set in a sheet feeding unit and a pair of separation rollers located downstream thereof. The lower part of the front side of the sheet bundle is shaped into a wedge shape by a bent part that is provided at the lower end of the scraper part and is inclined in the sheet conveyance direction, and only a predetermined number (three or four) of sheets are downstream. A configuration is disclosed in which the data is transmitted to the network.
Further, Patent Document 2 discloses that a sheet can be swung in a sheet conveying direction between a front end face of a sheet bundle set on a sheet placing table and a separation roller pair (reverse roller, guide pulley). There is disclosed a gate device for a sheet processing machine in which a configured presser member is arranged and a front end surface of a sheet bundle is shaped into a wedge shape by a bent tip (bent portion) of the presser member.
However, in any of Patent Documents 1 and 2, the scraper and the presser member between the bent portion at the tip of the pressing member and the conveyance path surface are exposed between the leading end portion of the paper sheet bundle and the separation nip portion. The conveyance path is always open, and a plurality of sheets are easily fed to the separation nip portion, and there is always a possibility of double feeding due to occurrence of a separation failure. Further, even if only the lowermost sheet of the plurality of sheets fed through the bent part toward the separation nip part passes through the separation nip part, the remaining multi-fed paper sheets remain in the separation nip. Since the next sheet feeding is performed in the state where the tip remains in contact with the brake roller and the reverse rotation roller, this causes a vicious cycle of poor separation.

  In Patent Document 3, the front end surface of the paper sheet bundle set on the paper sheet bundle setting table is always placed in close proximity to the pair of separation rollers including the driving drum and the driven roller, and the position of the front end surface of the paper sheet bundle is vibrated. The structure which shape | molded the banknote bundle front end surface in the wedge shape by restrict | limiting with the shutter to do is disclosed. However, since the front end face of the sheet bundle is always in contact with the driven roller, a plurality of sheets are easily fed to the separation nip when the driving drum rotates in the sheet feeding direction, and separation failure always occurs. It is easy to do. Even if the first sheet of paper at the bottom normally passes through the separation nip, the second and subsequent sheets are in contact with the circumferential surface of the separation roller at the time of the next sheet feeding, so that separation failure tends to occur.

Next, FIGS. 36A and 36B are diagrams showing an example of a conventional banknote separating and transporting mechanism. The banknote stacking unit 500 for stacking the banknote bundle P and the banknote bundle P by rotating in the transport direction a. A feeding roller 505 for feeding the first bill P1 at the bottom, a feed roller 520 connected to the feeding roller via a timing belt 510 and rotating integrally with the feeding roller 505, and a position immediately above the feed roller. A brake roller 525 that forms a separation nip portion N1 with the peripheral surface of the feed roller.
When only the first banknote is fed out by the feeding roller 505 and passes through the separation nip portion N1, as shown in FIG. 36 (a), the separation nip portion is in a normal state with no remaining bills, and the next bill There is no problem in feeding and separating work.

  On the other hand, when the second and subsequent bills P2 are double-fed together with the first bill P1, only the first bill P1 is separated in the state where the second and subsequent bills are prevented from moving forward by the brake roller 525. Is normally passed, as shown in (b) in the next bill feeding operation, the tip is brought into contact with and brought close to the bill Px that has entered the separation nip portion at the previous feeding or the brake roller. Separation work by rotation of the feed roller is performed in a state where the bill Py in the state remains in the separation unit. For this reason, the remaining banknotes enter the separation nip part prior to the newly drawn banknotes, or a plurality of sheets enter the separation nip part at the same time and become an obstacle to the separation work, and pass through the separation nip part in a double feed state. Cause it.

JP 2000-255810 A JP 53-147372 A JP-A-63-31952

  The present invention has been made in view of the above, and without having to increase the size of the apparatus and increase the cost, the front side of the sheet bundle is shaped into a wedge shape suitable for separation in the process of paper feeding, so that all the Of paper sheets can be continuously fed to the separation unit one by one, and if there are residual paper sheets in the separation unit when paper feeding is stopped, the remaining paper sheets are transported back to the upstream side for the next separation operation An object of the present invention is to provide a paper sheet separating / conveying device, a paper sheet separating / conveying method, and a paper sheet handling device which do not become an obstacle to the above.

  In order to achieve the above object, the sheet separating and conveying apparatus is configured such that a feeding unit that feeds out a sheet from a sheet bundle by a feeding roller and a sheet fed from the feeding unit are in a double feed state. A separation unit that passes only the sheet of paper and sends it downstream, and prevents the second and subsequent sheets from moving forward, and restricts the front position of the sheet bundle in the feeding unit when in the initial position, A regulating member that is pressed and displaced when the leaf bundle is displaced in the conveyance direction, a relay transmission unit that transmits a driving force between the feeding unit and the separation unit, and at least the first sheet of paper is separated. A sheet separating device comprising: a regulating member returning mechanism that returns to the upstream side together with the regulating member; and a control means when there is a paper sheet that operates after passing through the section and remains in the separating unit. In the conveying apparatus, the feeding unit is configured to transfer the first sheet of the sheet bundle. A feeding roller that feeds out by rotating normally in contact; and a paper feeding motor that drives the feeding roller; and the separation unit is driven by the paper feeding motor via the relay transmission unit, and A separation nip is formed between the feed roller and the feed roller that contacts and conveys the surface of the first sheet fed by the feeding roller when rolled, and the second and subsequent sheets A friction separating member for preventing advancement, and the restricting member is positioned on the front side of the paper sheet bundle when the feeding roller is stopped, and closes the entry path to the separating unit. The leading edge of the first sheet is apex with the front surface of the sheet bundle while closing the approach path by bringing the leading edge into contact with the outer peripheral surface of the feed roller in a stopped state when pressed in the forward direction. Shaped into a wedge shape When the feed roller rotates forward, the leading edge is retracted to a position where the entry path is opened, and the first sheet and the subsequent sheets sequentially enter the separation nip one by one. The control means operates the regulating member return mechanism after at least the trailing edge of the first sheet has passed through the separation nip portion.

  According to the present invention, the front side of the sheet bundle is shaped into a wedge shape suitable for separation during the paper feeding process, so that it is possible to reliably continuously feed one sheet at a time to the separation unit, and separation when the paper feeding is stopped. If there is a residual paper sheet in the section, the residual paper sheet can be returned and conveyed upstream so as not to be an obstacle in the next separation operation.

It is a front view which shows schematic structure of the banknote separation conveyance apparatus as an example of the paper sheet separation conveyance apparatus which concerns on embodiment of 1st this invention, and shows the state which has a control member in an initial position (paper feeding standby position). Yes. It is a front view which shows the state of the control member at the beginning of paper feed in the banknote separation conveyance apparatus. It is a front view which shows the state of the control member at the time of the drive start of the feed roller in the banknote separation conveyance apparatus. It is a front view which shows the state of the control member immediately after separation of the 1st sheet | seat in the banknote separation conveyance apparatus was completed, and the feed roller started reverse rotation. (A) is a front view which shows the state in which the banknote bundle and regulation member in the banknote separation conveyance apparatus returned to the initial position, (b) is a front view which shows the state in which only the regulation member returned to the initial position. It is a flowchart about the procedure of the paper feeding operation | movement in the banknote separation conveyance apparatus, a banknote bundle, and the return operation of a control member. It is a front view which shows schematic structure of the banknote separation conveyance apparatus as an example of the paper sheet separation conveyance apparatus which concerns on 1st Embodiment of 2nd this invention. (A) is a plane lineblock diagram of the bill separation conveyance device, (b) is an AA sectional view of (a), and (c) is a BB sectional view of (a). (A) is a front perspective view of a state in which the feeding roller, timing clutch, and upstream timing pulley are assembled to the feeding roller shaft, and (b) is a front perspective view showing a state in which the feeding roller shaft is removed from the configuration of (a). FIG. 4C is a front perspective view showing a state in which the divided pieces of the feeding roller on the front side are removed from the configuration of FIG. (A) is a rear perspective view of a state in which the feeding roller, timing clutch, and upstream timing pulley are assembled to the feeding roller shaft, and (b) is a rear perspective view showing a state in which the feeding roller shaft is removed from (a). (C) is a back side perspective view which shows the state which removed the division | segmentation piece of the feeding roller of the front side from (b). It is a perspective view which shows the whole structure of the banknote separation conveyance apparatus which concerns on 2nd this invention. It is a perspective view which shows the state which attached the exterior body provided with the control member to the structure of FIG. It is explanatory drawing of the procedure which cancels the double feeding of the banknote separation conveyance apparatus which concerns on 2nd this invention, (a) is a principal part front view of a banknote separation conveyance apparatus, (b) is the operation | movement in a 1st relative rotation area. Explanatory drawing, (c) is operation | movement explanatory drawing in a 2nd relative rotation area. It is explanatory drawing of the procedure (1st operation state of a control member) which cancels the same feeding, (a) is a principal part front view of a banknote separation conveyance apparatus, (b) is operation | movement description in a 1st relative rotation area. FIG. 4C is an operation explanatory diagram in the second relative rotation section. It is explanatory drawing of the procedure (2nd operation state of a control member) which cancels the same feeding, (a) is a principal part front view of a banknote separation conveyance apparatus, (b) is operation | movement description in a 1st relative rotation area. FIG. 4C is an operation explanatory diagram in the second relative rotation section. It is explanatory drawing of the procedure (2nd operation state of a control member) which cancels the same feeding, (a) is a principal part front view of a banknote separation conveyance apparatus, (b) is operation | movement description in a 1st relative rotation area. FIG. 4C is an operation explanatory diagram in the second relative rotation section. It is explanatory drawing of the procedure (2nd operation state of a control member) which cancels the same feeding, (a) is a principal part front view of a banknote separation conveyance apparatus, (b) is operation | movement description in a 1st relative rotation area. FIG. 4C is an operation explanatory diagram in the second relative rotation section. It is explanatory drawing of the procedure (the return state to the initial position of a control member) which cancels the same multi-feed, (a) is a principal part front view of a banknote separation conveyance apparatus, (b) is the operation | movement in a 1st relative rotation area. Explanatory drawing, (c) is operation | movement explanatory drawing in a 2nd relative rotation area. It is a flowchart which shows the operation | movement procedure of 1st Embodiment of 2nd this invention. (A) And (b) is a top view which shows the principal part structure of the banknote separation | separation conveyance apparatus which concerns on 2nd Embodiment of 2nd this invention, and operation | movement of the engaging part and engaged part in a relative rotation area. It is explanatory drawing (CC sectional drawing) shown. (A) is a front perspective view of the second embodiment of the second aspect of the present invention in which the feeding roller and the upstream timing pulley are assembled to the feeding roller shaft, and (b) is a drawing of the feeding roller shaft from the configuration of (a). The front side perspective view which shows the removed state, (c) is a front side perspective view which shows the state which removed the division | segmentation piece of the feeding roller of the front side from the structure of (b). (A) is a rear perspective view of the second embodiment of the second aspect of the present invention in which the feeding roller and the upstream timing pulley are assembled to the feeding roller shaft, and (b) is a drawing of the feeding roller shaft from the configuration of (a). The back side perspective view which shows the removed state, (c) is a back side perspective view which shows the state which removed the division | segmentation piece of the feeding roller of the front side from the structure of (b). (A) (b) and (c) are a plan view and a front view showing another configuration example of the relay transmission mechanism in the feeding unit and the separating unit of the banknote separating and conveying apparatus according to the second embodiment of the second invention. FIG. It is a front view which shows schematic structure of the banknote separation | separation conveyance apparatus as an example of the paper sheet separation conveyance apparatus which concerns on 1st Embodiment of 3rd this invention. (A) is a plane lineblock diagram of the bill separation conveyance device, (b) is an AA sectional view of (a), and (c) is a BB sectional view of (a). It is explanatory drawing of the procedure which eliminates double feeding in the paper sheet separation conveyance apparatus which concerns on 1st Embodiment of 3rd this invention, (a) is a principal part front view of a banknote separation conveyance apparatus, (b) is 1st. The operation explanatory diagram in the relative rotation section, (c) is an operation explanatory diagram in the second relative rotation section. It is explanatory drawing of the procedure which cancels the same double feeding, (a) is a principal part front view of a banknote separation conveyance apparatus, (b) is operation | movement explanatory drawing in a 1st relative rotation area, (c) is 2nd relative rotation. It is operation | movement explanatory drawing in the area. It is explanatory drawing of the procedure which cancels the same double feeding, (a) is a principal part front view of a banknote separation conveyance apparatus, (b) is operation | movement explanatory drawing in a 1st relative rotation area, (c) is 2nd relative rotation. It is operation | movement explanatory drawing in the area. It is explanatory drawing of the procedure which cancels the same double feeding, (a) is a principal part front view of a banknote separation conveyance apparatus, (b) is operation | movement explanatory drawing in a 1st relative rotation area, (c) is 2nd relative rotation. It is operation | movement explanatory drawing in the area. It is explanatory drawing of the procedure which cancels the same double feeding, (a) is a principal part front view of a banknote separation conveyance apparatus, (b) is operation | movement explanatory drawing in a 1st relative rotation area, (c) is 2nd relative rotation. It is operation | movement explanatory drawing in the area. It is explanatory drawing of the procedure which cancels the same double feeding, (a) is a principal part front view of a banknote separation conveyance apparatus, (b) is operation | movement explanatory drawing in a 1st relative rotation area, (c) is 2nd relative rotation. It is operation | movement explanatory drawing in the area. (A) And (b) is the perspective view which shows the structure of a double-feed paper leaf return mechanism, and an exploded perspective view. It is an external appearance perspective view of the principal part of a paper sheet separating and conveying apparatus including a multi-feed paper sheet returning mechanism and a regulating member returning mechanism. It is a flowchart which shows the double feed cancellation | release procedure in 3rd this invention. It is sectional drawing which shows schematic structure of the banknote discriminator as an example of the banknote handling apparatus which can each apply the banknote isolation | separation conveyance apparatus which concerns on each embodiment of the 1st thru | or 3rd this invention. (A) and (b) are figures which show an example of the conventional banknote separation conveyance mechanism.

Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings.
<A: 1st present invention>
[Description of basic configuration]
1 to 5 are front views showing a schematic configuration and an operation procedure of a banknote separating and conveying apparatus as an example of a paper sheet separating and conveying apparatus according to an embodiment of the first aspect of the present invention, and FIG. FIG. 2 shows the state of the regulating member at the beginning of paper feeding, FIG. 3 shows the state of the regulating member at the start of driving the feed roller, and FIG. 4 shows that the first sheet has been separated. FIG. 5A is a front view showing a state in which the banknote bundle and the regulating member in the banknote separating and conveying apparatus have returned to their initial positions, and FIG. It is a front view which shows the state which only the control member returned to the initial position.
In the present specification, a paper bill will be mainly described as an example of a paper sheet, but the present apparatus can also be applied to separation and conveyance of paper sheets other than paper money. In addition to the paper sheet, the paper sheet includes a sheet made of resin and other materials, and a thin plate material (for example, a rubber plate and a leaf spring). The same applies to the second and third aspects of the present invention.

A banknote separating / conveying apparatus (paper sheet separating / conveying apparatus) 1 is a feeding roller from a banknote bundle P composed of a plurality of banknotes stacked on a banknote stacking section (paper sheet stacking section) 10 in the vertical direction or diagonally up and down. 30, when a double feed occurs in which the second and subsequent banknotes are overlapped and transported one by one from the bottommost banknote (first banknote) P1, the separation roller pair 110 and 130 It has a configuration in which only the first banknote is conveyed downstream while preventing the banknotes other than the first banknote P1 (second and subsequent banknotes) from moving forward.
This double feed prevention function is not only the relationship between the first and second banknotes, but also the relationship between the second and third banknotes, the relationship between the third and fourth banknotes, etc. Of course, this also applies to all banknotes in the front-rear position relationship. This also applies to the second invention and the third invention.
In particular, according to the present invention, the separation performance of the existing banknote separating and conveying apparatus, continuous separating paper passing, can be simply improved by simply disposing the regulating member 300 between the feeding section 20 and the separating section 100 constituting the banknote separating and conveying apparatus. This makes it possible to significantly improve performance.

The banknote separating / conveying device 1 feeds out the bottom banknote (first banknote) P1 from the banknote bundle P stacked on the banknote stacking section 10 and then feeds out the next banknote one by one successively. Part 20 and a separation nip that passes only the first banknote P1 and sends it to the downstream side when the banknote fed from the feeding section 20 is in a double feed state and prevents the second and subsequent banknotes from moving forward A separation unit 100 having a portion N1, a drawer conveyance unit 250 that draws out and conveys the first banknote P1 partially remaining in the separation unit (separation nip unit N1), a feeding unit, and a separation unit. When the relay transmission unit 200 that transmits the driving force between them and the feeding unit 20 or between the feeding unit and the separating unit 100 is located at the initial position, the front end surface position of the banknote bundle in the feeding unit is regulated. And banknote bundle (front end face position) in the transport direction A regulating member 300 that is pressed and displaced in the same direction, and a paper sheet that operates after at least the first sheet of paper passes through the separation part (separation nip part) and remains on the upstream side of the separation part. In some cases, a regulating member returning mechanism (residual banknote returning mechanism) 310 that returns the remaining paper sheet to the upstream side together with the regulating member, and a control unit 1000 that controls them are roughly provided.
The banknote stacking unit (paper stacking unit) 10 has a bottom plate (not shown) for mounting (supporting) the bottom surface of the banknote bundle, and the bottom plate has a bottom surface of the banknote stack on which the upper peripheral surface of the feeding roller 30 is mounted. A through portion for contact is formed. The upper surface of the bottom plate constitutes a transport surface 10a that serves as a guide when the banknote bundle moves toward the separating portion.
The feeding unit 20 and the separating unit 100 constitute a paper feeding unit 15. An identification unit, a counting unit, a cash box and the like (not shown) are arranged on the downstream side of the drawer conveyance unit 250.

The feeding unit 20 extends in a direction orthogonal to the bill conveyance direction, rotates about a feeding roller shaft 21 rotatably supported by a bearing unit (not shown), and the feeding roller shaft 21, and sequentially along the axial direction. An adjacently arranged feeding roller (pickup roller) 30 and an upstream timing pulley (upstream transmission member) (not shown), the feeding roller 30, and the upstream timing pulley are moved in the bill conveyance direction (forward rotation direction) a and the return direction. A paper feed motor (feeding motor) 70 that drives in the (reverse direction) b and a start sensor (banknote set detection sensor) 75 that detects that the banknote bundle P has been set on the banknote stacking unit 10 are provided. .
The feeding roller 30 is a means for feeding out the roller 30 by rotating in contact with the lower surface of the bottom (first) banknote P1 in the banknote stacking unit 10 when rotating in the banknote transport direction a. There are cases where not only the first banknote but also the second and subsequent banknotes are taken out.
The upstream timing pulley rotates about the feed roller shaft 21 and is connected to the feed roller shaft by the electromagnetic clutch CL, and rotates downstream of the feed roller 110 (not shown) (downstream transmission member). Are connected by a timing belt (relay transmission member) 125. Accordingly, when the electromagnetic clutch CL is turned on, the upstream timing pulley and the feed roller 110 can be driven via the timing belt by rotating with the upstream timing pulley integrated with the feeding roller shaft 21. .
In this example, the timing pulley and the timing belt 125 are used as the drive transmission means between the feeding unit 20 and the separating unit 100. However, this is only an example, and a gear mechanism including a combination of a plurality of gears, a pulley, Various drive transmission mechanisms such as a mechanism made of wire can be used.

The separation unit 100 is arranged in parallel with the feeding roller shaft 21 on the downstream side in the banknote transport direction with respect to the feeding roller shaft 21, and rotates around the feed roller shaft with a feed roller shaft 101 rotatably supported by a bearing (not shown). , A feed roller 110 as a separation roller that contacts and conveys the lower surface of the first bill P1 fed by the feeding roller when rotated in the transport direction a, and a feed roller disposed above the feed roller 110, And a brake roller (friction separating member) 130 as a separation roller having a high friction part on the peripheral surface. Since the one-way clutch 130a is disposed on the shaft portion of the brake roller 130, it is possible to rotate only in the banknote return direction (counterclockwise direction).
The feed roller 110 and the brake roller 130 constitute a separation roller pair (separation mechanism) of a pressure friction brake roller type. The bills fed out by the forward rotation of the feeding roller 30 are fed into a separation point (separation nip portion N1) where the feed roller 110 and the brake roller 130 face each other and press contact with each other, and the second and subsequent bills are prevented from moving forward. Only the first banknote (preceding banknote) is separated from the second banknote (following banknote) and sent in the forward direction.
The feed roller 110 can be driven to rotate by transmitting the driving force of the feeding roller 30 via the upstream and downstream timing pulleys and the timing belt 125. While the brake roller 130 does not rotate in the banknote transport direction, it rotates at a predetermined pitch in the direction opposite to the banknote transport direction (banknote return direction) every time the banknote passes in order to avoid local wear due to contact with the banknote. It is configured to move.

In this example, a brake roller that does not rotate is illustrated as the friction separating member. However, this is only an example, and a friction roller (retard) that rotates with a small torque in the direction opposite to the feed roller (in the bill return direction) instead of the brake roller. Roller) may be used. Further, the separation nip portion N1 does not necessarily have a contact state between the feed roller and the friction separation means, but includes a configuration in which they are close to each other in a non-contact state.
In this example, the feed roller shaft 101 is configured to be rotatable. However, the feed roller integrated in advance and the downstream timing pulley 120 may be configured to be rotatable about the axis of the feed roller shaft that is disabled to rotate. Good.
A downstream timing pulley (downstream transmission member) (not shown) is fixed to the feed roller shaft 101, and is connected to the upstream timing pulley via a timing belt (relay transmission member) 125. . In the present example, the upstream timing pulley and the downstream timing pulley (not shown) have the same structure as that shown and described in the second and third aspects of the invention, and are not shown.

The regulating member 300 maintains the original posture at the time of non-feeding (when in the initial state) when the feeding roller 30 is stopped, and holds the front face of the banknote bundle at the initial (retracted) position shown in FIG. The paper money is elastically displaced and deformed when pressed in the forward direction by the front surface, and the leading edge 301 is brought into contact with the outer peripheral surface of the feed roller in a stopped state to close the paper money entry path R to the separation nip portion. This is means for shaping the front of the bundle into a wedge shape with the leading edge of the first banknote as the apex (top) (FIG. 2). Note that when the regulating member is pressed in the forward direction by the front face of the banknote bundle, the banknote bundle moves forward by the forward rotation of the feeding roller, and when the operator sets the banknote stack on the banknote stacking unit 10. 1 includes a case where the restricting member is displaced or deformed by being pushed toward the separating portion beyond the original set position shown in FIG.
The regulating member 300 is a resin-made elastic sheet, elastic film, which can be deformed and returned to its original shape between the initial posture (initial position) of FIGS. 1 and 5 and the deformed posture (deformed position) of FIGS. Alternatively, it is an elastic thin plate such as a rubber plate or a metal plate.
More specifically, the regulating member 300 is made of, for example, a resin film that is easily elastically deformed, and the upper end portion (fixed portion) 300a is fixed to the fixed support portion 305 of the device, so that the upper end portion 300a is pivoted. The lower portion of the movable portion (operating piece) 300b that is not fixed as a movable portion (operating piece) 300b can be displaced and deformed by drawing an arcuate locus in the bill conveyance direction indicated by the arrow.
For example, as shown in the perspective view of FIG. 11, the restricting member 300 can be deformed only in the movable portion 300b by attaching and supporting a reinforcing member (fixed support portion) 305 having a thin plate shape and rigidity on the upper end portion 300a. Hang down. When this restricting member is attached to the apparatus main body, as shown in the perspective view of FIG. 12, the upper end portion 300a is fixed together with the reinforcing member 305 together with the reinforcing member 305 at an appropriate position of the outer body 306 of the apparatus main body. When the restricting member 300 is made of a relatively rigid material such as a metal leaf spring or a rubber plate, the upper end portion 300a of the restricting member is directly attached directly to the exterior body 306 without using a reinforcing member although not particularly shown. It may be fixed by screwing or the like.

Moreover, while the length of the movable part 300b of the regulating member 300, that is, the height position of the leading edge 301 protrudes downward from the bill entry path R in the initial state of FIG. In the state where the tip edge 301 is locked to the peripheral surface of the feed roller by drawing an arc-shaped locus as shown in FIG. Select so that deformation is prevented.
Further, in the state of FIG. 3 in which the leading edge 301 is lifted while being separated from the circumferential surface of the feed roller due to the forward rotation of the feed roller, the leading edge is in contact with the circumferential surface of the brake roller 130 and enters the entry path R. Set the length to open. In the state of FIG. 3, the front end edge 301 of the regulating member forms a gap (entry space) that allows at least one bill to pass between the front edge 301 of the regulating member and the feed roller peripheral surface before the separation nip portion N1. Accordingly, the second and subsequent bills are prevented from contacting the feed roller while smooth passage of the first bill.
That is, the length of the restricting member is set so that the tip edge 301 contacts the brake roller peripheral surface before reaching the separation nip portion N1 in the state shown in FIG.
In the state of FIG. 3, the value of the gap formed between the leading edge of the regulating member and the peripheral surface of the feed roller only needs to allow at least one banknote to pass, and allows the second and subsequent sheets to pass. It may be a gap of a size. In this case, the second and subsequent bills are prevented from moving forward by the peripheral surface of the brake roller.

The feed roller 110 continuously rotates forward after the rear end portion of the first banknote P1 passes through the separation nip portion N1, so that the front roller is shaped into a wedge shape by the regulating member. The first and subsequent banknotes can be sequentially fed out one by one and continuously supplied to the separation nip portion. For this reason, it is possible to speed up the separation and conveyance process.
2 and 3, the regulating member 300 made of an elastic material presses the banknote bundle by its own restoring force to shape it into a wedge shape, and presses the front part of the banknote bundle against the feed roller. Therefore, the bottommost banknote in contact with the peripheral surface of the feed roller can reliably receive the transport force from the feed roller. That is, the pressing force (conveying force) applied to the banknote bundle from the feeding roller is a horizontal force that presses the banknote bundle toward the regulating member, and the horizontal force is applied to the vertical direction by the regulating member (before the banknote bundle). The force of pressing the portion to the feed roller side) allows the banknote bundle to be pressed against the peripheral surface of the feed roller by the restoring force of the regulating member. At this time, the bottommost banknote can receive the transport force from the feed roller more reliably, and is surely pressed against the feed roller by the pressing force of the regulating member, so that the transport force is applied only to the bottommost banknote P1. , And the ability to reliably separate and advance only the preceding banknote from the subsequent banknote is improved.
The restoring force of the regulating member also plays a role of returning the regulating member itself to the original upstream position.

The regulating member 300 is not limited to the process from the initial state in FIG. 1 to the completion of the first sheet passing in FIG. 4, but also in the process from the continuous feeding of all subsequent banknotes to the completion of the sheet passing. Since the front surface of the banknote bundle needs to be shaped into a regular wedge shape suitable for paper feeding and maintained in this state with respect to 10a, at least the back side of the movable portion 300b of the regulating member in contact with the front surface of the banknote bundle is It is preferable to have rigidity and hardness that can maintain flatness (flat surface). This is because if the restricting member is excessively flexible to the extent that it is pressed and deformed too much by the banknote bundle, it will not be possible to obtain the aligned state of the front face of the banknote bundle targeted by this embodiment.
In the above configuration example, the regulating member is made of an elastic material (flexible material), and when it returns to its original form from the posture pressed by the banknote bundle, it returns by its own elasticity. Only. For example, although not shown, the upper part of the plate-like regulating member is supported so as to be swingable in the transport direction by a hinge part provided on the fixed support part 305, and in the initial state, the hanging posture is maintained by its own weight and is pressed by the banknote bundle In this case, the tip edge 301 may be locked to the peripheral surface of the feed roller by rotating to the separating portion side around the hinge. When the feed roller is rotated forward, the leading edge is raised to open the entry path R, and when the feed is completed and the feed roller is reversed, the feed roller rotates around the hinge and returns to its original position by its own weight. It may be configured.
The drawer conveying unit 250 is arranged at a downstream position where the distance L (FIG. 1) to the separation nip N1 is shorter than the length in the banknote conveying direction to form the drawer nip N2 (drawer conveying member) 251a. , 251b, a next point sensor 253 for detecting the first bill P1 separated and sent out by the separating unit 100, and a drawer conveying motor 255 for driving the drawing roller 251a on the driving side. At 100, the banknotes separated into one sheet and sent downstream are pulled out and conveyed.

[Explanation of separation operation for multi-feed bills]
The operation of the banknote separating and conveying apparatus according to the first embodiment of the present invention will be described with reference to FIGS.
Operation | movement of each member which comprises the banknote separation | separation conveyance apparatus 1 in 1st Embodiment of this invention is demonstrated in relation to the conveyance timing of a banknote.
When the feeding roller 30 is stopped in the state before the start of paper feeding shown in FIG. 1, the movable portion 300 b of the regulating member 300 maintains the suspended initial posture, but the bill bundle P is placed on the bill stacking portion 10. When set, the start sensor 75 is activated to output a feeding start signal to the control means 1000. At this time, the banknote bundle P is in a state in which the front end surface is brought close to the back surface of the movable portion 300b of the regulating member. In this example, at this time, the front edge of each banknote constituting the banknote bundle is not in an aligned state, and the position of the front edge of each banknote varies.
At this time, since the electromagnetic clutch CL blocks transmission of the driving force between the feeding roller and the feed roller 110, the feed roller does not move even when the paper feeding motor 70 drives the feeding roller 30 to rotate in the forward rotation direction a. The rotation has stopped.
When the control unit 1000 drives the sheet feeding motor 70 based on the feeding start signal and rotationally drives the feeding roller 30 in the forward rotation direction a, the entire banknote bundle P moves forward toward the separating unit 100 as shown in FIG. The regulating member is pressed by the banknote bundle, and the movable part 300b starts to move upward and deform while drawing a locus in an arc shape in the forward direction with the fixed support part 305 as a fulcrum.

In this example, the regulation member 300 is not pressed by the banknote bundle when the banknote bundle is set on the transport surface 10a of the banknote stacking unit 10, but when the operator actually sets the banknote bundle, the banknote bundle In this case, in the initial state of FIG. 1, the regulating member 300 is displaced in the forward direction as shown by the broken line rather than the vertical posture shown by the solid line. ,Deform. Alternatively, at the stage where the banknote bundle is set, the regulating member tip 301 may already be in contact with the peripheral surface of the feed roller as shown in FIG. According to the banknote separating and conveying apparatus of this example, even if the banknote bundle setting mode and the position of the regulating member are in any state, normal feeding by sequentially driving the feeding roller and the separating roller, The separating operation and the returning operation of the remaining banknote and the regulating member are sequentially performed. This also applies to the second and third aspects of the present invention described later.
Further, in this example, when the driving of the feeding roller is started, the driving of the drawer conveying unit 250 is started.

As shown in FIG. 2, when the restricting member 300 closes the entry path R by bringing the leading edge 301 into contact with the peripheral surface of the feed roller, the leading edge 301 is moderate due to the outer peripheral surface of the stopped feed roller 110. Since it is temporarily locked (locked) by the locking force, even if a pressing force in the forward direction is further applied from the banknote bundle, it will not be further displaced or deformed, and the individual banknotes constituting the banknote bundle Can maintain a state in which the front surface thereof is in contact with the back surface of the regulating member. For this reason, the front surface of the banknote bundle whose bottom surface is supported by the transport surface 10a can maintain a regular wedge shape suitable for paper feeding as a whole.
In addition, by making the circumferential surface of the feed roller uneven as shown in the figure, the leading edge of the regulating member can be locked in the recess or groove to increase the locking force. By reliably locking the leading edge of the regulating member, the regulating member leading edge, which is an elastic sheet member, does not flutter in a state of being in contact with the feed roller, and the stopped state can be stably maintained.

Next, as shown in FIG. 2, when the restricting member 300 is in the closed state of the entry path R, the electromagnetic clutch CL is turned on and the feed roller 110 rotates in the paper feeding direction, and until then, the feed roller 110 is locked with the outer peripheral surface of the feed roller. The leading edge 301 is released and can be displaced and deformed to the brake roller side, that is, upward. The movable portion 300b of the restricting member is displaced and deformed upward (in the approach path opening direction), and the leading end 301 enters the position in contact with the brake roller in front of the separation nip portion. It will be in the state which accept | permits the banknote P1 of an eye approaching a separation nip part (FIG. 3).
Thus, when the feed roller 110 continues normal rotation with the restricting member opening the entry path R, only the first banknote can pass through the separation nip portion N1 (FIG. 4). Until the rear end of the banknote of the eye passes through the separation nip part, the remaining banknotes after the second one are prevented from moving forward by the back surface of the regulating member (or in cooperation with the brake roller). It becomes. The third banknote P3 is maintained in a state in which the third banknote P3 is prevented from advancing by the regulating member until the second banknote P2 is fed out after the first banknote is fed and the rear end of the second banknote P2 has passed through the separation nip portion. To do. This sheet feeding procedure is sequentially performed for each sheet until the banknotes in the banknote bundle are exhausted.
Even after the trailing edge of the first bill passes through the separation nip portion, the forward rotation of the feed roller is continuously continued, so that the regulating member 300 continues to maintain the approach path opening posture of FIG. In order to maintain the regular wedge shape suitable for separation of the front surface shape, the second and subsequent sheets of paper are fed continuously and one by one to the separation nip part, and the banknote bundle on the banknote stacking part is Continuous feeding is possible until it runs out. Even when the forward rotation of the feed roller is stopped in the middle of continuous paper feeding (in the state where there is a remaining banknote on the banknote stacking unit 10), the regulating member can continue to maintain the approach path opening posture of FIG.
Even if the control means stops the forward rotation of the feed roller at the timing when the rear end portion of the first banknote P1 drawn and conveyed by the drawer conveyance unit 250 passes the separation nip portion, the regulating member is This forward blocking state can be maintained, and when the feed roller resumes normal rotation, sheet feeding is resumed sequentially from the lowest banknote P2 in the remaining banknote bundle.

The control unit 1000 stops the feed roller during continuous paper feeding, for example, after the trailing edge of the first banknote has passed the separation nip portion, and operates the regulating member return mechanism 310 to reverse the feed roller. The second and subsequent banknote bundles remaining in the separation unit can be returned to the upstream side and returned to the initial position. Not only the first sheet but also the trailing edge of any one of the second and subsequent banknotes passes through the separation nip portion. Similarly, the feed roller is stopped and the regulating member return mechanism 310 is operated to remain. In other words, regardless of how many preceding banknotes have passed through, the forward rotation is temporarily stopped with a remaining banknote as shown in FIG. When the fed roller starts to reverse, the remaining banknote bundle P is returned to the upstream side together with the regulating member that returns to the original position through the path indicated by the chain line in FIG.
Therefore, when the feed roller stops normal rotation and reverses in the presence of remaining banknotes, when the preceding banknote, for example, the fifth banknote has been fed, the remaining sheets after the sixth sheet are completed. All the banknotes are returned to the banknote stacking unit 10 (initial position), and the tip of the sixth and subsequent banknotes does not remain in the separation unit at the time of the next paper feeding. For this reason, it is possible to greatly reduce the occurrence rate of separation failure in the second and subsequent sheet feeding.
In the state in which the banknote bundle P remaining in FIG. 4 is returned to the initial position as shown in FIG. Since it is flat along the surface, shaping into a wedge shape at the time of the next paper feeding becomes easy, and the effect of preventing double feeding can be further enhanced.
The regulating member follows the movement of the remaining banknote bundle to the upstream side and returns to the original position by its original shape restoring force. At that time, the restoring force of the original shape of the regulating member may act to support the return of the banknote bundle.
Further, when the start sensor 75 detects that the continuous paper feeding is completed and no remaining banknotes exist, the feed roller is stopped and then reversely rotated to return the regulating member 300 to the initial position. .
That is, in this example, the restricting member return mechanism 310 is configured by the paper feed motor 70, the upstream and downstream timing pulleys, and the timing belt 125, and all remaining on the banknote stacking unit 10 in the stage of FIG. When the start sensor 75 detects that the banknote bundle is completely fed, the feed roller is reversed by the feed motor 70, thereby restricting by passing through a return path indicated by a chain line in FIG. The member is returned to the initial position indicated by the solid line.

[Description of returning operation of remaining banknote and regulating member]
Next, the sheet feeding operation of the banknote separating and conveying apparatus according to the first aspect of the present invention and the returning operation of the remaining banknotes and the regulating member will be described with reference to the flowchart of FIG.
In this flowchart, an example is described in which the remaining banknote is returned to the original position by stopping and reversing the feed roller after the first banknote has passed through the separation nip portion. However, the procedure shown by this flowchart is generally applicable when stopping and reversing the feed roller in a state where there is a subsequent remaining banknote, regardless of how many sheets have been completed in advance.
First, a paper feed operation is started by turning on a paper feed switch (not shown) or by an operation start signal from a host machine (not shown) (step S1).
When the paper feed switch is turned on in the initial state and the start sensor 75 detects that the banknote bundle P is set in the banknote stacking unit 10 (step S2, YES), the control unit 1000 turns off the electromagnetic clutch CL. At the same time, driving of the paper feed motor 70 and the drawer transport motor 255 is started in the transport direction (forward rotation direction) (steps S3 and S4).
Since the electromagnetic clutch CL for connecting and disconnecting the driving force from the paper feed motor 70 to the feed roller 110 is in the OFF state, only the feed roller 30 and the pair of draw rollers 251a and 251b start to rotate at this time. Has stopped rotating.
Step S4 is only an example, and when the banknote bundle set is detected by the start sensor 75, only the paper feed motor 70 is started to drive, and the leading edge of the first banknote reaches the drawer nip portion N2 of the drawer roller pair. It is also possible to start driving the drawer conveying motor 255 after detecting this.

When the feeding roller 30 starts normal rotation, the first banknote P1 in the lowermost part of the banknote bundle P is fed out, and the second banknote and the subsequent banknotes as a whole are also shown in FIG. The regulating member 300 is pushed in until it moves forward and the leading edge 301 contacts the peripheral surface of the feed roller. At this time, since the regulation member 300 closes the banknote entry path R, the first banknote cannot enter the separation nip portion N1, but the banknote bundle whose bottom is supported by the transport surface 10a. The front end face is shaped into a wedge shape with the leading edge of the first banknote as the apex along the back face of the regulating member. Further, in addition to being able to shape the banknote bundle into a wedge shape, the banknote bundle does not enter the separating section until the feed roller rotates by the regulating member, so that trouble operations such as double feeding are less likely to occur.
In this state, the feeding roller continues to press the front end surface of the banknote bundle including the banknote P1 against the back surface of the regulating member in a fixed state. Is applied to the contact surface between the feeding roller and the first banknote P1, a strong friction conveying force is generated due to the pressing force from above. Without being pushed until each banknote is deformed against the regulating member. In other words, even if the leading edge of each banknote is pressed against the regulating member surface by the feeding force of the feeding roller, each banknote can be freely moved and deformed in the return direction and the vertical direction, so that damage accumulates at the front end and deforms. There is nothing.

Further, since the banknote bundle is not pushed into the regulating member until the banknote bundle is deformed, the banknote bundle does not press the regulating member excessively and roll up to be separated from the feed roller.
Thus, since the banknote bundle comes into contact with the regulating member with an appropriate load, even if it is a banknote bundle initially set in a reverse wedge shape that is exactly opposite to a regular wedge shape suitable for paper feeding, A regular wedge shape is shaped and aligned by a rolling effect in an acute angle shaped shaping space between the regulating member 300.
Even if a strong pressure is not applied to the upper surface of the banknote bundle P on the banknote stacking unit 10, the banknote itself has a waist and the weight of the stacked banknote bundle between the banknote P1 and the feeding roller. Can ensure the minimum frictional force for feeding.
The same applies to the second and third aspects of the present invention.

At the timing when the leading edge 301 of the regulating member hits the peripheral surface of the feed roller, the control means turns on the electromagnetic clutch CL to apply the driving force from the paper feed motor 70 to the upstream timing pulley, timing belt, and downstream timing pulley. Then, transmission to the feed roller shaft 101 is started to start normal rotation of the feed roller (step S5).
As shown in FIG. 3, the rotation of the feed roller causes the leading edge 301 of the regulating member to roll up toward the separation nip portion N1 following the peripheral surface of the feed roller and open the banknote entry path R to open the periphery of the brake roller 130. It comes into contact with the surface. At this time, since only the lower surface of the first banknote P1 whose tip is in contact with the brake roller is in contact with the feed roller, when the feed roller rotates, only the first banknote passes through the separation nip portion N1, Since the banknote after the 1st sheet | seat is stopped by the regulating member 300 or the brake roller 130, the normal conveyance after isolate | separating the 1st banknote from the banknote after the 2nd sheet | seat is realizable.
At this time, the leading end of the regulating member is kept in contact with the brake roller and stopped by the rotational force of the feed roller and the passage of the first bill, and the second and subsequent bills are reliably secured by the regulating member and the brake roller. Stopped moving forward.

Next, as shown in FIG. 4, when the leading edge of the first banknote P1 that has been separated and passed through the separation nip portion N1 passes through the nip portion N2 of the drawer roller pair and is detected by the next sensor 253 (step S6). , YES), the control unit 1000 stops the paper feed motor 70 (step S7). For this reason, the feeding roller 30 and the feed roller 110 are stopped, and the drawer roller pair 251a and 251b driven by the drawer conveyance motor 255 pulls the banknote P1 from the separation nip portion N1.
Next, at the timing when the trailing edge of the first banknote leaves the separation nip portion N1, the control means reverses the feed roller by rotating the paper feed motor while the electromagnetic clutch CL remains ON (step S8).
Then, the remaining banknote bundle after the second sheet moves to the upstream side together with the regulating member and returns to the initial position (step S9). As described above, the remaining banknotes that have entered the separating unit 100 in the stage of FIG. 4 are pulled out of the separating unit and returned to the upstream side as shown in FIG. Retreat to the position.
Receipts and other foreign matters do not know when they enter the conveyed banknote, so it is necessary to perform control to reverse the feed roller every time one sheet is fed. Alternatively, it is also necessary to perform control to reverse the feed roller in order to remove the foreign matter immediately after the foreign matter is detected by a sensor or the like. In either case, the reversal is performed in a state where there are residual banknotes.

In the present embodiment, the amount of rotation from the start of rotation of the feeding roller 30 to stop for feeding out the banknote, in other words, the timing of stopping is the timing at which the leading edge of the banknote reaches the next point sensor 253. If a configuration in which the sensor is omitted is adopted, the time required for the fed banknotes to be separated after being separated by the separating unit and then reach the drawing roller pair is calculated in advance, and the feeding sensor is matched by this time. It can be configured to stop after rotating.
Although the position where the next point sensor 253 is disposed is in the downstream side separated from the drawing roller pair in the illustrated example, it may be closer to the drawing nip portion N2 than the illustrated position, or the position of the drawing nip portion N2 It may be arranged upstream.
The above configuration relating to the next point sensor also applies to the second and third aspects of the present invention.

[Summary of actions and effects peculiar to the first invention]
In the banknote separating and conveying apparatus 1 according to the first aspect of the present invention, when the banknote bundle is set on the banknote stacking section 10, the regulating member 300 (movable section 300b) made of an elastic thin plate material blocks the entrance path R of the banknote bundle. It is in the state which faced the bill bundle front in the state. When the banknote bundle is pushed out to the separation section 100 by the rotation of the hand or the feeding roller 30, the movable section 300b of the regulating member maintains the flat surface posture while being displaced and deformed. The entrance path R is still blocked while being shaped into a wedge shape (acute triangle shape) with the leading edge of the bill as a vertex. The displacement and deformation of the restricting member toward the separating portion is temporarily stopped when the tip edge 301 is brought into contact with the peripheral surface of the feed roller in a stopped state, and is temporarily locked (locked) by the peripheral surface of the feed roller. ) Even at this time, the back surface of the regulating member that is in contact with the front surface of the banknote bundle remains flat, so that the front surface of the banknote bundle can be maintained in a wedge shape suitable for paper feeding. Note that the wedge shape with the leading edge of the first banknote as a vertex means that the leading edge of the first banknote protrudes ahead of the separation edge of the leading edge of the second and subsequent banknotes. It does not include a reverse wedge shape in which the leading edge of the second and subsequent banknotes protrudes closer to the separation nip portion than the leading edge of the first banknote.
When the front end position of the banknote bundle varies when it is initially set on the banknote stacking unit 10 or when it is in the reverse wedge state opposite to the normal wedge state, If there is no regulating member 300 for aligning the banknotes, the front side of the banknote bundle is pushed into the separating portion in the state as it is, and double feeding is likely to occur. If the front edge of the banknote bundle enters the separation section in an unaligned state, it will be caught between the pair of separation rollers, so even if you try to roll the banknote bundle manually, you can not make it a regular wedge shape, if you rotate the feed roller Double feed occurs.

On the other hand, the regulating member has a function of aligning the front end of the banknote bundle in a wedge state while preventing the entry of the banknote set on the banknote stacking section into the separating section while exhibiting the function of the shutter. As a matter of course, the set position of the bundle of banknotes varies, and even in the reverse wedge state (the reverse wedge shape shown in FIG. 1) opposite to the normal wedge state, It can be corrected to a normal wedge shape at the time of one operating state. More specifically, even when the front shape of the banknote bundle is an inverted wedge shape with the tip edge of the final banknote on the side opposite to the first banknote as the apex (top side), this is changed to a regular wedge shape. It is possible to shape, and it is possible to reliably prevent poor feeding such as double feeding. Even if the number of stacked banknotes is small, the feeding failure can be reliably prevented by the alignment effect of the regulating members.
Subsequently, when the driving force is transmitted to the feed roller 110 and normal rotation is started, the regulating member that has locked the leading edge 301 by the frictional force with the peripheral surface of the feed roller follows the frictional force with the peripheral surface of the feed roller. Then, it is drawn toward the separation nip portion N1, and while being pushed up by the first banknote that enters in the process, it shifts to the upper side of the entry path R to release the entry path, and the brake roller 130 The tip edge 301 is brought into contact with the surface (second operating state in FIGS. 3 and 4). For this reason, the 1st banknote can pass the separation nip part, without receiving the resistance from a control member.
In the illustrated example, at the timing when the first banknote passes through the separation nip portion, the control means 1000 reverses the feed roller and the brake roller by the paper feed motor 70, so that the tip remains at the separation portion. Are pushed back to the upstream side to return to the initial position. At this time, the regulating member also returns to the initial position by its original shape restoring force (FIG. 5).
When all the banknotes constituting the banknote bundle P are continuously fed in the state of FIG. 4 and no remaining banknotes exist on the banknote stacking unit 10 in the stage of FIG. ), Only the regulating member is returned to the upstream side when the regulating member returning mechanism is operated.
That is, in this case, only the regulating member is returned by continuing the paper feeding by the forward rotation of the feed roller until the banknote bundle having the tip positioned at the separating portion is eliminated and then reversely rotating.
In the case where the restricting member cannot be returned to the original position by itself, the restricting member can be restored only by the reverse rotation of the feed roller.

<Summary of Configuration, Action, and Effect of First Invention>
1. The paper sheet separating and conveying apparatus 1 according to the first aspect of the present invention is used when a feeding unit 20 that feeds a paper sheet from a bundle of paper sheets by a feeding roller 30 and a paper sheet fed from the feeding unit is in a double feed state. A separation unit 100 that passes only the second sheet and sends it downstream, and prevents the second and subsequent sheets from advancing, and a sheet in the feeding unit when placed in the feeding unit and in the initial position. Relay transmission that regulates the front position of the bundle and transmits the driving force between the regulating member 300 that is pressed and displaced when the sheet bundle (front end surface position) is displaced in the transport direction, and the feeding portion and the separating portion. Part 200 and a restricting member that returns to the upstream side together with the restricting member when there is a sheet that operates after at least the first sheet of paper passes through the separating part and remains in the separating part. A residual paper) return mechanism 310 and a control means 1000; The feeding section includes a feeding roller 30 that feeds forward by rotating in contact with the first sheet of the sheet bundle, and a paper feed motor 70 that drives the feeding roller (forward / reverse), and includes a separating section. Between the feed roller 110, which is driven by the paper feed motor via the relay transmission unit and which contacts the first paper sheet surface fed by the feed roller when it rotates forward and conveys it, and the feed roller And a friction separating member 130 that prevents the second and subsequent sheets from advancing, and the regulating member 300 is positioned on the front side of the sheet bundle when the feeding roller is stopped. The approach path R to the leaf separation unit is closed, and when the front surface of the sheet bundle is pressed in the forward direction, the entrance path R is deformed and the leading edge 301 is brought into contact with the outer peripheral surface of the feed roller in a stopped state to close the entry path. While the first sheet of paper The wedge is shaped (aligned) with its leading edge as the apex, and when the feed roller rotates forward, the leading edge is retracted (moved) to a position where the entry path is opened, and the first sheet and the subsequent sheets Paper sheets are allowed to enter and pass through the separation nip sequentially one by one, and the control means operates the regulating member return mechanism after at least the trailing edge of the first sheet has passed the separation nip. It is characterized by making it.

The regulating member 300 follows the initial posture in which the advance of the front side of the sheet bundle is restricted by closing the sheet entry path R at the feeding unit when the feeding roller is stopped, and the movement of the sheet bundle due to the forward rotation of the feeding roller. In this way, the front edge 301 is locked to the feed roller by displacing it to the separation part side, and the feed path is rotated in the forward direction with the attitude of shaping and aligning the front side of the sheet bundle into a wedge shape suitable for separation while closing the entrance path The posture that allows the first paper sheet to enter the separation unit by separating from the peripheral surface of the feed roller and opening the entry path, and the paper remaining before the separation unit by reversing the feed roller It can be displaced and deformed with the leaf bundle (or with the regulating member alone) returning to the upstream side.
In the present invention, the regulating member is the stage where the separation of the first sheet and the passing of the paper are completed, the separation of the second and subsequent sheets as necessary, the appropriate stage when the passing of the paper is completed, or the whole sheet bundle By reversing the feed roller at the stage where the separation and paper passing are completed, it is possible to return to the upstream side together with the sheet bundle remaining before the separation portion (or by the regulating member alone).
Since the separation unit is a pressure contact system of two rollers, when there is no restriction member, a plurality of paper sheets enter the separation nip portion at the same time. However, according to the present invention, such a problem can be solved.
Normally, the feed roller is driven reversely to remove foreign matter that cannot be detected by the sensor after the separation of all the paper sheets constituting the paper sheet bundle, for example, and the completion of paper feeding. It does not add, and does not lead to complicated configuration and control.
When the sheet feeding is resumed after the regulating member and the remaining paper sheets are returned to the initial position by the reverse rotation of the feed roller, the same paper sheet bundle shaping effect and double feed prevention effect can always be exhibited.
Further, when the apparatus is not in operation, the regulating member is in the initial position, is not loaded, and is not deformed, so that durability can be improved.
The separation of one or a plurality of preceding paper sheets, and the paper sheet bundle remaining in the state where the front part is close to the separation part after completion of paper passing, is evacuated to the upstream side when the feed roller is reversed. The strength of the original restoring force of the restricting member may be set so that the original restoring force of the restricting member acts to support the return of the sheet bundle.
Any feeding section can be used as long as it is possible to return the residual sheet bundle to the initial position by separating the one or a plurality of preceding paper sheets and passing the paper through the feed roller by reversing the feed roller. The paper sheet separating and conveying apparatus having the above structure is also included in the scope of the present invention.

The functions of the regulating members are summarized as follows.
The regulating member functions as a valve body, and is interposed between the front surface of the sheet bundle and the separation nip portion at the beginning of feeding to prevent the sheet bundle from entering the separation nip portion, and the feed roller starts driving. At this point, the entry path R is opened, and only the first sheet can be fed in advance to the separation nip (preventing double feed). After the first sheet is separated and the feed roller continues to rotate after passing, the second and subsequent sheets are also properly separated and passed in succession until there are no more sheets in the bundle. Separation and paper passing are possible.
In a state where the regulating member is locked by the separating portion, the sheet bundle is shaped into a wedge shape suitable for paper feeding by an acute-shaped shaping space formed between the transport surface 10a and the regulating member back surface. Even if the initial state set on the conveyance surface 10a is a reverse wedge state that is not suitable for paper feeding or other irregular states, the regulating member is displaced and deformed, so that it is easily shaped into a normal wedge shape. Is done.
The number of parts is small, the configuration is extremely simple, and the cost is low.
The regulating member is pressed by the sheet bundle to be deformed to the first operating state (first posture), is deformed to the second operating state (second posture) by rotation of the feed roller, and further excludes foreign matters (for example, When the feed roller is rotated for the purpose of receipt, etc., the original position (initial position, initial posture) is restored, so that no special drive source or control is required to operate the regulating member.
The restriction member (residual paper sheet) returning mechanism 310 is “operated after at least the first paper sheet has passed through the separating portion” as well as the second and third sheets. It means that the regulating member return mechanism is activated (the reverse rotation is started after the feed roller is stopped) at the stage where each subsequent sheet such as the first sheet passes through the separating section. This also applies to the second and third aspects of the present invention.
In addition, the feed roller can be reversed when jamming occurs or other appropriate time regardless of the foreign matter removal.

2. In the paper sheet separating and conveying apparatus according to the first aspect of the present invention, the control means reversely (actuates) the regulating member return mechanism (separating part) after all the paper sheets in the paper sheet bundle have passed the separating nip part. Thus, the restriction member is returned to the upstream side.
After the restricting member is deformed to the second operating state through the first operating state, the feed roller rotates forward so that only the first sheet enters the separation nip portion in advance, and the second sheet The paper is separated from the paper and moves forward. Even after the rear of the first sheet passes through the separation nip, the feed roller is rotated forward to feed all subsequent sheets one by one continuously. Can do. At the timing when the start sensor 75 detects that all the sheets on the sheet stacking unit 10 are no longer passed, the regulating member returning mechanism is operated, that is, the separating unit is reversed, so that only the regulating member is moved. Return to the original position.

3. In the paper sheet separating and conveying apparatus according to the first aspect of the present invention, the regulating member 300 is an elastic sheet, an elastic film, or an elastic thin plate that can be deformed and returned between an initial position and a displacement position.
The regulating member is preferably composed of an elastic film, sheet, thin plate, etc., and the material is preferably resin rubber, but can be diverted if there is something that can be substituted with a metal thin plate, etc. It doesn't matter.

4). The paper sheet separating and conveying method by the paper sheet separating and conveying apparatus according to the first aspect of the present invention includes a separating unit that prevents the paper sheet bundle from entering the separation nip when the paper sheet bundle is advanced by the feeding roller. The step of displacing the regulating member toward the surface and the displaced regulating member being locked by the separating portion while closing the entry path, the front edge of the first sheet of paper sheets is set as the apex. At least one of a step of shaping into a wedge shape, a step of allowing the regulating member to open the paper sheet entry path and allowing the first paper sheet to enter the separation nip when the separation unit starts the separation operation. A step of returning the regulating member to the upstream side together with the residual paper sheet by operating the regulating member returning mechanism after the sheet of paper passes through the separation nip portion, when there is a residual paper sheet. It is characterized by.
The paper sheet separating and conveying apparatus for performing each step of the method of the present invention is included in the scope of the method of the present invention regardless of the configuration of the feeding unit and the separating unit.
A single motor is used even when automatic paper feeding is performed from a bundle of paper sheets of different lengths, or when automatic feeding is performed from a stack of paper sheets in which the leading edges are not aligned. On the other hand, the shape when the front side of the paper sheet bundle enters the separation nip can be made the wedge shape most suitable for separation, so all the paper sheets from the first sheet to the second and subsequent sheets are sequentially appropriate. Can be separated and fed. Further, when the paper feeding is stopped before the feeding of all the paper sheets constituting the banknote bundle is completed, the regulating member return mechanism is operated (the separation unit is reversed) by using the same motor as necessary. This makes it possible to quickly return the sheet bundle remaining in the separation unit that hinders the next sheet feeding to the initial position. For this reason, simplification of a structure, size reduction, and cost reduction are realizable.

<B: Second Invention>
[B-1: Basic Configuration of First Embodiment of Second Invention]
FIG. 7: is a front view which shows schematic structure of the banknote separation conveyance apparatus as an example of the paper sheet separation conveyance apparatus which concerns on 1st Embodiment of 2nd this invention, Fig.8 (a) is the same banknote separation conveyance apparatus. It is a plane block diagram, (b) is AA sectional drawing of (a), The figure (c) is BB sectional drawing of (a). FIG. 9A is a front perspective view of a state in which the feeding roller, the timing clutch, and the upstream timing pulley are assembled to the feeding roller shaft, and FIG. 9B is a state in which the feeding roller shaft is removed from the configuration of FIG. FIG. 10C is a front perspective view showing a state in which the divided piece of the front-side feeding roller is removed from the configuration of FIG. 10B, and FIG. 10A is a drawing of the feeding roller, the timing clutch, and the upstream side. A rear perspective view of the timing pulley assembled to the feed roller shaft, (b) is a rear perspective view of the feed roller shaft removed from (a), and (c) is a front feed from (b). It is a back side perspective view which shows the state which removed the piece of the roller. FIG. 11 is a perspective view showing the entire configuration of the banknote separating and conveying apparatus according to the present embodiment provided with a regulating member, and FIG. 12 is a perspective view showing a state where an exterior body equipped with the regulating member is attached to the configuration of FIG. It is. FIGS. 13 to 18 are diagrams for explaining a procedure for returning the remaining banknotes to the upstream side after canceling the double feed generated by the driving of the feeding roller.
The same parts as those in the first invention are denoted by the same reference numerals, and the description of the overlapping configuration and operation will be omitted as appropriate.

A banknote separating / conveying apparatus (paper sheet separating / conveying apparatus) 1 is fed out from a banknote bundle P made up of a plurality of banknotes stacked on a banknote stacking section (paper sheet stacking section) 10 in the vertical direction or diagonally up and down direction. In the process of feeding one sheet at a time from the bottommost banknote P1 by the roller 30, when a double feed is generated in which the second and subsequent banknotes are overlapped and conveyed, other than the first banknote P1 by the separation roller pair 110, 130 The banknote (the second and subsequent banknotes) is prevented from moving forward, and only the first banknote is conveyed downstream. This double feed prevention function is also applicable to all banknotes in the front-rear position relationship, such as the relationship between the second and third banknotes, the relationship between the third and fourth banknotes, etc. is there.
In particular, according to the present invention, only the single paper feed motor 70 that directly drives the feeding roller is used as a driving source used for the feeding unit 20 and the separation unit 100, and the second bill P2 (following bill) is one. The feeding roller and the multi-feed prevention are prevented by a configuration that realizes mechanical time difference driving by the drive transmission delay mechanism D to prevent separation failure caused by being supplied to the separation unit 100 in a state preceding the first bill (preceding bill). This can be solved by changing the drive timing with the roller (feed roller).

  The banknote separating and conveying apparatus 1 includes a feeding unit 20 that feeds out the bottom banknote P1 (preceding banknote) one by one from the banknote bundle P stacked on the banknote stacking unit 10, and a banknote that has been fed out from the feeding unit 20 overlaps. A separation unit 100 having a separation nip portion N1 that passes only the first banknote P1 and sends it to the downstream side and prevents the second and subsequent banknotes (subsequent banknotes) from moving forward when in the feeding state, and feeding The front end face position of the banknote bundle in the feeding section is restricted when the section 20 or the feeding section and the separating section 100 are located at the initial position, and the banknote bundle (front end face position) is displaced in the transport direction. When there is a regulating member 300 that is sometimes pressed and displaced in the same direction, and there is a paper sheet that operates after at least the first sheet of paper passes through the separation part (separation nip part) and remains on the upstream side of the separation part On top of the remaining paper with the regulating member A regulating member return mechanism (residual banknote return mechanism) 310 that returns to the side, a drawer transport section 250 that pulls and transports the first banknote P1 partially remaining in the separating section 100 from the tip, a feeding section, and a separating section And the relay transmission part 200 which transmits a driving force between, and the control means 1000 which controls various control objects are roughly provided. The feeding unit 20 and the separating unit 100 constitute a paper feeding unit 15. An identification unit, a counting unit, a cash box and the like (not shown) are arranged on the downstream side of the drawer conveyance unit 250.

  The feeding unit 20 extends in a direction orthogonal to the bill conveyance direction, rotates about a feeding roller shaft 21 rotatably supported by a bearing unit (not shown), and the feeding roller shaft 21, and sequentially along the axial direction. The feeding roller (pickup roller) 30, the timing clutch (clutch member) 50, the upstream timing pulley (upstream transmission member) 60, and the feeding roller 30 arranged adjacent to each other are driven in the bill conveyance direction (forward rotation direction) a. Relative rotation sections 40 and 45 are provided between the sheet feeding motor (feeding motor) 70, the feeding roller 30 and the timing clutch 50, and between the timing clutch 50 and the upstream timing pulley 60, respectively. A drive transmission delay mechanism D that delays (connects) transmission of the driving force, and an opening that detects that the banknote bundle P is set on the banknote stacking unit 10. The sensor is provided with a (bill set detection sensor) 75, a.

The feeding roller 30, the timing clutch 50, and the upstream timing pulley 60 are configured to rotate around a common feeding roller shaft 21 and be relatively rotatable within a predetermined range of circumferential play. While the feeding roller 30 is fixed to the feeding roller shaft 21 by the parallel pins 22 and rotates integrally, the timing clutch 50 and the upstream timing pulley 60 can be relatively rotated independently from each other with respect to the feeding roller shaft 21. It is pivotally supported.
The feeding roller 30 is a means for contacting and feeding the bottom surface (first sheet) of the banknote P1 in the banknote stacking unit 10 when rotating in the banknote transport direction a.
The driving force from the sheet feeding motor 70 is transmitted to the feeding roller 30 through the output gear 70 a, the driven gear 71, the feeding roller shaft 21, and the parallel pin 22.
In this example, the driven gear 71 integrated with the feeding roller shaft 21 is driven to rotate by the output gear 70a of the paper feeding motor 70, and the feeding roller 30 (divided pieces 30a, 30b) is driven by the parallel pin 22 with respect to the feeding roller shaft. However, this is merely an example, and the feeding roller may be assembled rotatably around the axis of the feeding roller shaft that does not rotate. In this case, although not shown, the driven gear integrated with the feeding roller is driven by the output gear 70a of the paper feed motor.

The feeding roller 30 of this example is composed of two divided pieces 30a and 30b, and a timing clutch 50 and an upstream timing pulley 60 are disposed between the two divided pieces, but this is only an example, and a single piece that is not divided. The feeding roller may be arranged at the position of one of the divided pieces 30a. As will be described later, the other split piece 30b is not directly involved in the operation in which the feeding roller 30 sequentially interlocks with the timing clutch 50 and the upstream timing pulley 60 through the relative rotation section. In the present specification, the feeding roller 30 mainly refers to one divided piece 30a.
The timing clutch 50 and the upstream side timing pulley 60 are configured to be relatively rotatable independently of the feeding roller shaft 21 and the feeding roller 30 (divided piece 30a). The feeding roller 30 and the timing clutch 50 are configured to be able to rotate forward and backward relatively within a predetermined first relative rotation section 40 (circumferential play). The timing clutch 50 and the upstream side timing pulley 60 are configured so as to be relatively forward / reverse rotatable within a predetermined second relative rotation section 45 (circumferential play).

The configuration and operation of the separation unit 100 are the same as in the first aspect of the present invention.
The feed roller 110 has a configuration in which two divided pieces 110a and 110b are fixed to a feed roller shaft by parallel pins (fixing tools) 102, and a downstream timing pulley 120 is fed by the parallel pins 102 between the divided pieces. It is fixed to the shaft.
The feed roller 110 can be driven to rotate by transmitting the driving force of the feeding roller 30 via the timing clutch 50, the timing pulleys 60 and 120, and the timing belt 125. While the brake roller 130 does not rotate in the banknote transport direction, it rotates at a predetermined pitch in the direction opposite to the banknote transport direction (banknote return direction) every time the banknote passes in order to avoid local wear due to contact with the banknote. It is configured to move.

The relay transmission unit 200 includes a downstream timing pulley (downstream transmission member) 120 that rotates integrally with the feed roller 110 around a feed roller axis, and a timing belt (relay) that is wound endlessly between the timing pulleys 120 and 60. Transmission member) 125.
The drawer transport unit 250 is disposed at a downstream position where the distance L (FIG. 7) from the separation nip part N1 is shorter than the length in the banknote transport direction and forms a drawer nip part N2 (drawer transport member) 251a. , 251b, a next point sensor 253 for detecting the first bill P1 separated and sent out by the separating unit 100, and a drawer conveying motor 255 for driving the drawing roller 251a on the driving side. At 100, the banknotes separated into one sheet and sent downstream are pulled out and conveyed.
An interval L between the separation nip portion N1 and the nip portion N2 of the drawing roller pair is set to be a distance shorter than the length in the conveyance direction of each bill to be conveyed. Therefore, in a state where driving of the feeding unit 20 and the separating unit 100 is stopped by the paper feeding motor 70, the drawer roller pair nips and conveys the first banknote P1 sent from the separating unit 100, and separates it. During the period in which the bill rear portion is sandwiched between the separation nip portion N1 of the roller pair, the feed roller 30, the downstream timing pulley 120, the timing belt 125, and the upstream timing pulley 60 are connected to the drawer roller pair 251a via the bill P1. Receiving the transport force from 251b, it is rotated in the transport direction. At the same time that the rear end of the banknote P1 passes through the separation nip portion N1 of the pair of separation rollers, the driving force transmission by the rotation from the banknote to the feed roller or the like is completed.

The drive transmission delay mechanism D allows the circumferential positional relationship between the feeding roller 30 and the timing clutch 50 to be bi-directionally rotatable between the initial positional relationship and the final positional relationship, and the positional relationship of the feeding roller with respect to the timing clutch. Until the end position relationship is reached from the initial position relationship, the driving force is not transmitted to the timing clutch, and the driving force is transmitted after the end position relationship is reached.
Further, the drive transmission delay mechanism D allows the relative position in the circumferential direction between the timing clutch 50 and the upstream timing pulley 60 to be bi-directionally rotatable between the initial position relationship and the final position relationship, and the upstream timing pulley. A configuration in which the driving force is not transmitted to the upstream timing pulley until the positional relationship of the timing clutch with respect to reaches the final positional relationship from the initial positional relationship, and the driving force is transmitted after the final positional relationship is reached. Prepare.

The drive transmission delay mechanism D includes a first relative rotation section 40 provided between the feeding roller 30 and the timing clutch 50, and a second relative rotation section 45 provided between the timing clutch 50 and the upstream timing pulley 60. A time difference is provided between the feeding timing by the feeding roller and the driving start timing of the feed roller by the total of the relative rotational circumferential direction lengths (idling direction lengths) obtained from the above.
That is, due to the presence of the first relative rotation section 40 and the second relative rotation section 45, the driving force of the feeding roller 30 is not directly connected to the timing clutch 50 and the timing pulley 60 and transmitted without delay. It is transmitted intermittently and with a delay through an idle section (a section where no driving force is transmitted) set by the rotation sections 40 and 45. For this reason, the feed roller starts to rotate after a predetermined time from the normal rotation of the feeding roller. Even if double feeding occurs during feeding by the feeding roller 30 and the leading edge of the second banknote P2 comes into contact with the brake roller 130 prior to the first sheet, the intermittent driving force is transmitted. Due to the delay, the rotation start timing of the feed roller is delayed by the sum of the circumferential lengths of the respective relative rotation sections. Therefore, before the rotation of the feed roller starts, the first banknote P1 is delayed from the second banknote P2 and the tip of the brake roller Is brought into contact.
In this configuration example, since the regulating member 300 is arranged at the front position of the banknote bundle on the banknote stacking unit 10, the second banknote enters the separation nip section ahead of the first banknote. Although the situation is unlikely to occur, even if it happens, the function of separating only the first banknote from the second banknote and feeding it in the forward direction while preventing the second and subsequent banknotes from moving forward be able to.

  The control unit 1000 feeds paper at an appropriate timing (detected by the next point sensor 253) when the first banknote P1 that has been fed by the feeding roller 30 by the forward rotation of the feed roller 110 reaches the drawing nip portion N2. By stopping driving of the feeding roller by the motor 70 and stopping the rotation of the feed roller, by carrying out the drawing and conveying of the banknotes by the pair of drawing rollers (drawing and conveying members) 251a and 251b, the conveying force of the first banknote Is used to resume normal rotation of the feed roller 30, the relay transmission member 125, and the upstream timing pulley 60. Actually, there is no time difference between the forward rotation stop and normal rotation restart of the feed roller, and the feed roller rotates continuously without interruption.

The upstream timing pulley 60 continues to rotate (idle) within the range of the second relative rotation section 45 with respect to the timing clutch 50 in which the upstream timing pulley 60 that has started normal rotation by the banknote conveying force is stopped. And the timing clutch 50 return to the initial positional relationship. Subsequently, when the driving force from the upstream timing pulley is transmitted to the timing clutch, the timing clutch resumes normal rotation and rotates within the range of the first relative rotation section 40 with respect to the feeding roller 30 in the stopped state. By continuing (idling), the timing clutch 50 and the feeding roller 30 return to the initial positional relationship.
In this example, the timing pulleys 60 and 120 and the timing belt 125 are used as drive transmission means between the feeding unit 20 and the separating unit 100. However, this is merely an example, and a gear mechanism composed of a combination of a plurality of gears. Various drive transmission mechanisms such as a mechanism composed of a pulley and a wire can be used.

The restricting member 300 maintains the original posture and keeps the front face of the banknote bundle in the initial (retracted) position shown in FIG. The movable portion 300b is displaced and deformed when pressed in the forward direction, and the leading edge 301 is brought into contact with the outer peripheral surface of the feed roller in the stopped state to close the bill entry path R to the separation nip portion, while This is means for shaping the front of the bundle into a wedge shape with the leading edge of the first banknote as the apex (FIG. 14). The time when the bill bundle is pressed in the forward direction by the front of the bill bundle is the case where the bill bundle advances by the forward rotation of the feeding roller, and when the operator sets the bill bundle on the bill stacking unit 10. This includes the case where the regulating member 300 is displaced or deformed by being pushed beyond the set position.
The regulating member 300 is made of, for example, a resin film, a resin sheet, a rubber plate, a metal plate, or the like that is easily elastically deformed. The upper end portion (base portion) 300a is fixed to the fixed support portion 305 of the device, and is not fixed. The side part (movable part) 300b can be displaced and deformed by drawing an arcuate locus in the bill conveyance direction indicated by an arrow. Since the material of the regulating member and other configurations are the same as those described in the first invention, a duplicate description is omitted.

As shown in the perspective views showing the assembled state of FIGS. 11 and 12, a regulating member 300 made of a thin plate-like or film-like resin material is suspended from a horizontally long upper end (base) 300a and the upper end. The movable portion 300b of the book is configured so that the tip portion 301 of each movable portion 300b protrudes downward beyond the bill entry path R in the initial state. In this example, the restricting member is composed of the two movable portions 300b in order to avoid interference with a small-diameter driven roller disposed on the upper side of the timing belt 125, and it is essential to use two operating pieces. is not.
Further, the length of the regulating member 300, that is, the position of the leading edge 301 protrudes downward from the bill entry path R in the initial state of FIG. 13, and the leading edge 301 is brought into contact with the feed roller peripheral surface in the state of FIG. Further displacement and deformation are prevented, and in the second operating state shown in FIGS. 15, 16, and 17, the entry path R is opened by retreating upward on the front side of the separation nip portion N1. Set to.

The restricting member return mechanism 310 according to the present embodiment includes a paper feed motor 70 and a drive transmission delay mechanism D. That is, in the second operating state of FIG. 17, after the trailing edge of the first bill passes through the separation nip portion N1 and play is restored, the control means reversely rotates the paper feed motor 70 (the regulating member return mechanism 310). By rotating the feed roller 110 in the reverse direction, the second and subsequent bills remaining in the separating portion are returned to the initial position as shown in FIG. Can return to position.
Note that the feed roller continuously rotates after shifting to the operating state of FIG. 17, so that the second and third and subsequent bills are successively separated sequentially while maintaining the posture of the regulating member. Since it can pass through, after passing the preceding banknote, before the passing of the next succeeding banknote, the regulating member return mechanism 310 can exhibit the function of returning the remaining banknote at any timing. Similarly to the first invention, it is possible to return only the regulating member to the initial position by feeding all the banknotes constituting the banknote bundle and reversing the feed roller after the remaining banknotes disappear.
Note that since the amount of reverse rotation of the feed roller required for returning from the second operating state of FIG. 17 to the initial state of FIG. 18 is small, the “play” recovered in FIG. 17 is maintained almost as it is. . The second engaged portion 62 that has been in contact with the second engaging portion 53 in FIG. 17 before the reverse rotation is slightly rotated from the second engaging portion 53 in FIG. 18 after the reverse rotation.

  The banknote separating / conveying apparatus 1 having the above configuration feeds the second banknote P2 (following banknote) to the separating nip portion before the first banknote P1 (preceding banknote) when being fed by the feeding roller 30. In order to prevent double feed that occurs due to contact with the brake roller 130, the following double feed prevention mechanism is provided. In the case where the regulating member 300 is present, the possibility that the second and subsequent bills come into contact with the brake roller is greatly reduced. However, the operation for preventing double feeding when the regulating member is not present will be described below.

First, the feeding roller 30 can rotate relative to the timing clutch 50 within a circumferential length of a first relative rotation section 40 provided between the feeding roller 30 and the timing clutch 50, that is, within a range of “circumferential play”. 50 can rotate relative to the upstream timing pulley 60 within the range of the circumferential length of the second relative rotation section 45 provided between the upstream timing pulley 60, ie, “circumferential play”. In other words, when the timing clutch 50 is in a stopped state, the feeding roller 30 rotates and moves from the start end (first start end 40a) of the first relative rotation section 40 toward the end (first end 40b). In the process, the driving force from the feeding roller is not transmitted to the timing clutch 50, but the driving force from the feeding roller is transmitted to the timing clutch 50 after the feeding roller 30 reaches the first end portion 40b. When started, both members rotate together. In addition, when the upstream timing pulley 60 is in a stopped state, the timing clutch 50 rotates from the start end portion (second start end portion 45a) of the second relative rotation section 45 toward the end portion (second end portion 45b). In the process, the driving force from the timing clutch 50 is not transmitted to the timing pulley 60. However, after the timing clutch 50 reaches the second terminal end 45b, the timing clutch 60 is driven from the timing clutch. The force starts to be transmitted, and both members rotate together.
For convenience of explanation, in FIGS. 13 to 18, the first start and end portions 40 a and 40 b (first relative rotation section 40) are used as specific fixed circumferential portions (circumferential sections) in the feeding roller 30. The second start and end portions 45a and 45b (second relative rotation sections) are shown as specific fixed circumferential portions (circumferential sections) in the timing pulley 60. However, in practice, after the feeding roller performs the feeding operation by the paper feeding motor 70 and stops, the length that is carried along by the extra bill length L1 is not constant, so each relative rotation section has recovered. The position of the first starting end portion 40a at the time varies. For this reason, the circumferential position of the first relative rotation section on the feeding roller and the circumferential position of the second relative rotation section on the timing pulley are not necessarily constant.

Next, when the feeding roller 30 rotates in the conveying direction and feeds the first banknote P1 of the bottommost part of the banknote bundle P toward the separation nip part N1, the feeding roller 30 is set to the timing clutch 50 in a stopped state. 1 Rotation movement within the range of the relative rotation section 40, and after the rotation angle of the feeding roller 30 reaches the first end portion 40 b of the first relative rotation section 40, driving is started to be transmitted to the timing clutch 50 and the conveyance direction The unit starts to rotate integrally.
The timing clutch 50 rotates and moves in the range of the second relative rotation section 45 with respect to the upstream timing pulley 60 in the stopped state, and the rotation angle of the timing clutch is the end portion (conveyance direction end section) of the second relative rotation section. After reaching 45b, the transmission of the drive to the upstream timing pulley 60 is started, and the integral rotation in the transport direction is started, whereby the feed roller 110 is rotationally driven in the transport direction via the timing belt 125.

Specifically, when the feeding roller 30 rotates, the feed roller stops rotating because the driving force is cut off due to the presence of the relative rotation sections 40 and 45. For this reason, when the regulation member 300 does not exist, when the double feeding in which the second banknote P2 is fed out toward the separation nip portion N1 precedes the first banknote P1 by the rotation of the feeding roller occurs. The leading second banknote stops in a state in which the leading edge thereof is in contact with the brake roller 130 and is prevented from moving forward. In this state, when the driving force interruption by each relative rotation section is canceled and the feed roller starts to rotate by the driving force from the feeding roller, the first banknote passes under the second banknote P2 and is separated. It can enter the nip portion N1 and be sent downstream. As a result, even if a double feed preceded by the second banknote occurs before the separation nip N1, the first banknote passes first while preventing the second banknote from moving forward at the separation nip N1. Can be made.
In addition, when the regulating member 300 is disposed between the feeding unit 20 and the separating unit 100, it is possible to prevent the second banknote from entering the separating nip portion in principle before the first banknote. Although the double feeding preceded by the second bill is unlikely to occur, even if it occurs, the first bill is sent out ahead of the second by the above procedure.

  Next, at a timing when the next point sensor 253 detects that the leading edge of the first banknote P1 has entered the nip portion N2 of the drawing roller pair, the control unit 1000 transfers the paper from the paper feeding motor 70 to the feeding roller shaft 21. The driving force is cut off so that the feeding roller 30, the timing clutch 50, and the upstream timing pulley 60 are stopped, and the drawing roller pair 251a, 251b is rotated in the conveying direction a to nip the bill P1. Then pull it out. At the time of this withdrawal conveyance, since the rear end portion of the bill P1 is nipped by the separation roller pair, the feed roller 110 rotates with the bill and rotates in the conveyance direction, and this rotational driving force is in a stopped state. The signals are sequentially transmitted to the downstream timing pulley 120, the timing belt 125, and the upstream timing pulley 60.

  When the upstream timing pulley 60 is rotationally driven in the transport direction a by the accompanying driving force from the bill P1, the timing clutch is in a stopped state within the second circumferential play range of the second relative rotation section 45. 50, the upstream timing pulley 60 is idle. When the upstream timing pulley 60 finishes idling within the second circumferential play range of the second relative rotation section 45, the timing clutch 50 starts to rotate in the transport direction a. When the idle rotation of the upstream timing pulley 60 within the range of the second circumferential play is completed, the second relative rotation section (the circumferential positional relationship between the upstream timing pulley and the timing clutch) returns to the initial state. ing.

Next, the timing clutch 50 started to rotate in the transport direction a by the upstream timing pulley 60 rotates idly within the circumferential play range of the first relative rotation section 40 with respect to the feeding roller 30 in the stopped state. Specifically, the range of the first circumferential play that the timing clutch 50 has in the first relative rotation section 40 until the period in which the bills drawn by the draw roller pairs 251a and 251b rotate the feed roller is completed. The first relative rotation section (the circumferential positional relationship between the timing clutch and the feeding roller) is restored to the initial state when the idling is completed.
The amount of rotation of the bill after stopping the feed roller (the amount of rotation of the timing pulley and timing clutch for return) depends on the length of the extra bill L1 (FIG. 16) located upstream from the separation nip portion N1. Determined.

  Therefore, when the length of each bill to be conveyed is not constant, the bill length (extra length L1) drawn by the drawing roller pair from the time when the feed roller is stopped by the paper feed roller is not constant. Even if the section returns to the initial state, the circumferential positional relationship between the paper feed roller and the timing clutch does not completely coincide with the initial initial state. Therefore, it is important to determine the idling period due to the circumferential play of each relative rotation section with a margin in consideration of uncertain factors such as a difference in bill length.

Next, a more specific configuration example and operation of the double feed prevention mechanism including the drive transmission delay mechanism D will be described in detail.
As shown in FIG. 8A, FIG. 9 and FIG. 10, the first relative rotation section 40 is obtained when the feeding roller 30 and the timing clutch 50 are in the initial circumferential positional relationship shown in FIG. Protruding first engaging portions 32 provided on one surface 31A (front surface) of the main body 31 of the feed roller 30 and the opposing surface 51B (back surface) of the main body 51 of the timing clutch 50 are arranged in a positive direction with respect to the feed roller. A play space (idling) extending in the circumferential direction formed between the projecting first engaged portion 52 that engages and disengages (disengages) from the first engaging portion 32 in the process of relative rotation in the reverse direction. Section). More specifically, in the first relative rotation section 40, the rear portion 32b of the first engaging portion 32 indicated by a solid line is in contact with the front portion 52a of the first engaged portion 52 in the stopped state in FIG. From the state (first starting end portion 40a), the front portion 32a of the first engaging portion 32 indicated by the broken line in FIG. 13B is in contact with the rear portion 52b of the first engaged portion 52 (first first portion 40a). This is a section in which the circumferential length corresponding to the end portion 40b) is maximized.

The timing clutch 50 includes a first engaged portion 52 projecting from a back surface (opposite surface to the feeding roller) 51B of the donut-shaped main body 51, and a front surface (opposite surface to the upstream timing pulley) 51A of the main body 51. And a projecting second engaging portion 53. In this example, the first engaged portion 52 and the second engaging portion 53 are disposed at the same circumferential position of the main body 51, but this is only an example and may be disposed at different circumferential positions. .
In addition, when the circumferential direction positional relationship between the feeding roller and the timing clutch is in the initial state, the first engagement portion 32 does not necessarily coincide with the start end portion 40a. That is, in the initial state, the first engaging portion 32 and the first engaged portion 52 may be separated from each other. If the first engaging portion 32 and the first engaged portion 52 are separated from each other in the initial state, the first relative rotation section becomes shorter than the maximum value. 1 Even if the positional relationship with the engaged portion 52 is not always constant, the rotation of the feeding roller after the rotation of the feeding roller is prevented so as not to hinder the banknote separation operation due to the rotation of the feed roller that is delayed from the start of rotation of the feeding roller. It is not difficult in design to appropriately set the rotation start timing of the feed roller.

  As shown in FIGS. 8B, 9 and 10, in the second relative rotation section 45, the timing clutch 50 and the upstream timing pulley 60 are in the initial circumferential positional relationship shown in FIG. 13C. Occasionally, the protruding second engaging portion 53 provided on one surface 50A of the timing clutch 50 and the opposing surface 61B of the main body 61 of the upstream timing pulley 60 are disposed in the forward and reverse directions with respect to the timing clutch 50. This is a play space (idling section) extending in the circumferential direction formed between the projecting second engaged portion 62 that engages or disengages with the second engaging portion 53 in the process of rotation. More specifically, in the second relative rotation section 45, the rear portion 53b of the second engaging portion 53 is in contact with the front portion 62a of the second engaged portion 62 shown by the solid line in the stopped state in FIG. From the state (second starting end portion 45a), the front portion 53a of the second engaging portion 53 indicated by the broken line in FIG. 13B is in contact with the rear portion 62b of the second engaged portion 62 (second state). This is a section in which the circumferential length corresponding to the end portion 45b) is maximized.

In the initial state (initial position) in which the feeding roller 30, the timing clutch 50, and the upstream timing pulley 60 are stopped, the first engagement portion 32 is first engaged as shown in FIGS. The second engagement portion 53 is located on the front rotation portion 52a side (first start end portion 40a), and the second engagement portion 53 is in the conveyance rotation direction (forward rotation) of the second engaged portion 62. (Direction) It is located at the front portion 62a (first start end portion 45a).
When the feeding roller 30 is rotated in the transport direction and the first banknote P1 at the bottom of the banknote stacking unit 10 is sent out toward the separation nip portion N1, the first position at the initial position (first start end portion 40a). The first engaging portion 32 rotates in a direction away from the front portion 52a of the first engaged portion 52 in the stopped state, and the first engaging portion 32 circulates to return the rear portion 52b of the first engaged portion 52. (After reaching the first end portion 40b), the driving force is transmitted to the first engaged portion 52, and the timing clutch is started to rotate in the transport direction.

At the beginning of the rotation of the second engaging portion 53 that was in the initial position (second starting end portion 45a) when the timing clutch 50 is stopped, the second engaging portion 62 moves away from the front portion 62a. Then, after the second engaging portion 53 circulates and comes into contact with the rear portion 62b of the second engaged portion 62 (after reaching the second end portion 45b), a driving force is applied to the second engaged portion 62. Is transmitted to start the rotation of the upstream timing pulley 60, and the driving force in the conveying direction from the feeding roller is transmitted to the timing pulley, whereby the feed roller is rotationally driven in the conveying direction via the timing belt.
The first engaged portion 52 of the timing clutch is in a positional relationship (positional relationship that can be engaged and disengaged) that can be engaged with and disengaged from the first engaging portion 32 of the feeding roller. The circumferential play angle of the first relative rotation section 40 formed between the engaged portion 52 and the first engaging portion 32 is a maximum of 250 degrees in this example. Further, the second engaging portion 53 of the timing clutch is in a positional relationship that can be engaged with and disengaged from the second engaged portion 62 of the upstream timing pulley 60. In this example, the second engaging portion 53 and the second engaged portion are engaged. The circumferential play angle of the second relative rotation section 45 formed between the joint portion 62 is 250 degrees at the maximum in this example. Accordingly, the total maximum circumferential play angle of the first and second relative rotation sections 40 and 45 is 500 degrees, which is about 1.4 rounds when converted into the rotation speed of the feeding roller.

  When the paper feed motor 70 is driven with a design in which the circumferential play length is 500 degrees at the maximum, a circulation delay of about 1.4 laps occurs between the feeding roller 30 and the feed roller 110. Although the amount of lap delay can be set arbitrarily, it is set to an appropriate value in relation to the banknote length, so that the second banknote is fed to the separation nip portion N1 in advance by feeding of the feeding roller 30. The feed roller starts rotating with a predetermined delay after P2 stops in a state where the tip is in contact with the brake roller 130, and only the first banknote P1 can be fed into the separation nip portion N1 and advanced. Become.

[Explanation of separation operation for multi-feed bills]
Next, operation | movement of each member which comprises the banknote isolation | separation conveyance apparatus which concerns on 1st Embodiment of 2nd this invention is demonstrated in relation to the conveyance timing of a banknote.
FIGS. 13 to 18 are diagrams for explaining the procedure for returning the remaining banknotes to the initial position after canceling the double feed generated by the driving of the feeding roller. FIGS. 13 (a), 14 (a), and 15 (15). a), FIG. 16 (a), FIG. 17 (a), and FIG. 18 (a) are principal part front views of a banknote separating and conveying apparatus, 13 (b), FIG. 14 (b), FIG. 15 (b), and FIG. 16 (b), FIG. 17 (b), and FIG. 18 (b) are explanatory diagrams of the operation in the first relative rotation section (AA sectional view of FIG. 8 (a)), FIG. 13 (c), FIG. (C), FIG.15 (c), and FIG.18 (c) are the operation | movement explanatory drawings in the 2nd relative rotation area (BB sectional drawing of Fig.8 (a)). FIG. 19 is a flowchart showing the operation procedure of the first embodiment.

  In the initial state shown in FIG. 13A, the feeding roller 30 and the timing clutch 50 are in the initial circumferential positional relationship. In this initial state, the paper feed motor 70 is stopped, and the circumferential play of the first relative rotation section 40 is between the feed roller 30 and the timing clutch 50 as shown in FIG. In this example, a maximum of 250 degrees is secured for the direction length (angle). Further, as shown in FIG. 3C, between the timing clutch 50 and the upstream timing pulley 60, the circumferential play of the second relative rotation section 45 is a predetermined circumferential length (angle), in this example. A maximum of 250 degrees is secured. Therefore, a maximum of 500 degrees of circumferential play is secured between the feeding roller 30 and the upstream timing pulley.

In this initial state, as shown in FIG. 13B, the rear portion 32b of the first engagement portion 32 is at the start end portion 40a of the first relative rotation section 40 in contact with the front portion 52a of the first engaged portion 52. And as shown in (c), the rear part 53b of the 2nd engaging part 53 exists in the start end part 45a of the 2nd relative rotation area 45 which contact | connected the front part 62a of the 2nd to-be-engaged part 62.
When the feeding roller 30 is stopped in the state before the start of paper feeding shown in FIG. 13A, the regulating member 300 maintains the initial posture that hangs substantially vertically, but the banknote bundle is placed on the banknote stacking unit 10. When P is set, the start sensor 75 is activated to output a feed start signal to the control means 1000. At this time, the banknote bundle P is in a state in which the front end surface is brought close to the back surface of the regulating member 300. In this example, at this time, the front edge of each banknote constituting the banknote bundle is not in an aligned state, and the position of the front edge of each banknote varies.
A paper feed operation is started by turning on a paper feed switch (not shown) or an operation start signal from a host machine (not shown) (step S11 in FIG. 19).

When the paper feed switch is turned on in the initial state and the start sensor 75 detects that the banknote bundle P is set in the banknote stacking unit 10, the control unit 1000 moves the paper feed motor 70 and the drawer transport motor 255 in the transport direction. Driving is started in the forward direction (FIGS. 14 and 19, steps S12, S13, and S14).
At this time, only the feeding roller 30 and the drawing roller pair 251a and 251b start to rotate. The presence of the first and second relative rotation sections 40 and 45 causes the feeding roller 30 and the timing clutch 50 to idle sequentially. During this period, the upstream timing pulley 60 and the feed roller 110 (shaft portion 101) stop rotating.
Step S14 is an example, and when the banknote bundle set is detected by the start sensor 75, only the paper feeding motor 70 is started to drive, and the leading edge of the first banknote reaches the drawer nip portion N2 of the drawer roller pair. It is also possible to start driving the drawer conveying motor 255 after detecting this.

When the control unit 1000 drives the paper feeding motor 70 based on the feeding start signal and rotationally drives the feeding roller 30 in the normal rotation direction a, the entire banknote bundle P moves forward toward the separating unit 100 as shown in FIG. The regulating member 300 is pressed by the banknote bundle, and the movable portion 300b, which is a portion below the fixed support portion 305, starts to be displaced and deformed while drawing an arcuate locus in the forward direction.
In the state where the restricting member 300 closes the approach path R as shown in FIG. 14, the tip edge 301 is locked by the outer peripheral surface of the stopped feed roller 110, and deformation and movement due to upward swing are restricted. Therefore, even if a pressing force in the forward direction is further applied from the banknote bundle, it is not further displaced or deformed, and a banknote bundle in which the bottom surface (first banknote) is brought into contact with the transport surface 10a is configured. The individual banknotes to be maintained can maintain a state in which the front surface thereof is in contact with the back surface of the regulating member. For this reason, as shown in FIG. 14, the front surface of a banknote bundle can maintain the wedge shape suitable for paper feeding as a whole. Even if the banknote bundle is initially set on the conveyance surface 10a, even if the wedge shape is opposite to the wedge shape suitable for paper feeding (see FIG. 13A), the conveyance surface 10a and the regulating member 300 It is shaped and aligned into a regular wedge shape by the formed sharp-angled shaping space.
Note that, as described above, the banknote bundle may already be shaped into a wedge shape as shown in FIG. 14 when the banknote bundle is set.

  In the operation for eliminating the play in the first relative rotation section 40, the payout roller 30 idles until there is no play, so the payout roller continues to press the front end of the banknote bundle against the back surface of the regulating member 300. Since no pressing force is applied to the upper surface of the banknote bundle P on the stacking unit 10 or only a slight pressing force is applied, the contact surface between the regulation member and the banknote bundle is A strong frictional conveyance force due to the pressing force is not generated, and the banknote is not pushed into the regulating member 300 until it is deformed. That is, even if the front surface of the banknote bundle is pressed against the back surface of the regulating member by the feeding force of the feeding roller, the banknote bundle can be freely moved and deformed in the return direction and the vertical direction, so that damage accumulates at the tip and deforms. There is nothing. Even if a strong pressure is not applied to the upper surface of the banknote bundle P on the banknote stacking unit 10, the banknote itself has a waist and the weight of the stacked banknote bundle between the banknote P1 and the feeding roller. Can ensure the minimum frictional force for feeding.

  The first engagement portion 32 of the feeding roller 30 finishes the rotational movement from the start end portion 40a to the end end portion 40b (the rear portion 52b of the first engaged portion 52) of the first relative rotation section 40, and there is no circumferential play. Then, the first engaging portion 32 comes into contact with the first engaged portion 52 of the timing clutch 50 and starts normal rotation of the timing clutch (FIG. 19, step S15). FIG. 14 (b) shows a state after the first engaging portion 32 located at the starting end portion 40a moves around in the forward rotation direction and passes through the terminal end portion 40b. Since the portion 32 starts to press the first engaged portion 52, the feeding roller and the timing clutch start to rotate integrally in the forward rotation direction. Since the timing clutch idles with the feeding roller 30 until there is no play in the second relative rotation section 45, the feed roller 110 is still stopped.

FIGS. 15B and 15C show a state where the feeding roller is rotating forward (a state where the next sensor does not detect the leading edge of the first bill), and FIG. 16B and FIG. (C) shows a state in which the paper feed motor is stopped when the next sensor detects the leading edge of the first bill.
As shown in FIGS. 14 (c) and 15 (c), the second engagement portion 53 that has started normal rotation from the second start end 45a of the second relative rotation section corresponding to the first end portion 40b is the second relative When passing through the second end portion 45b of the circumferential play range of the rotation section, the rear portion 62b of the second engaged portion 62 of the upstream timing pulley comes into contact and starts to press in the forward rotation direction. The timing pulley starts normal rotation (FIG. 19, step S16). That is, the second engagement portion 53 of the timing clutch 50 that has started normal rotation from the start end portion 45a of the second relative rotation section finishes the rotational movement to the end portion 45b of the second relative rotation section, thereby eliminating circumferential play. Then, the second engaging portion 53 comes into contact with the second engaged portion 62 of the upstream timing pulley 60 and starts driving the upstream timing pulley. Therefore, at this stage, the timing belt 125 and the downstream timing pulley 120 are fed for the first time. The driving force is transmitted to the roller 110, and the feed roller starts normal rotation (FIG. 19, step S17).

In other words, after the feeding roller 30 starts normal rotation, the feed roller starts normal rotation for the first time at the timing when the circumferential play in the first relative rotation section and the circumferential play in the second relative rotation section disappear in sequence. To do.
When the feed roller 110 rotates in the sheet feeding direction a when the restricting member 300 is in the closed state of the entry path R, the leading edge 301 that has been in a locked state with the outer peripheral surface of the feed roller until that time is released and the brake is released. It can be displaced and deformed on the roller side, that is, upward. The regulating member is displaced and deformed upward, and the leading edge 301 is inserted into the brake roller side so that the leading edge is retracted (moved) in the direction of opening the entry path R, and the first bill is separated into the separation nip portion. (Fig. 15 (a)). When the feed roller starts normal rotation in this way, the regulating member is pressed from the banknote bundle, so that the frictional force on the outer periphery of the feed roller flutters in the transport direction, opens the entry path R, and does not hinder banknote transport. Play a role.
In other words, with the rotation of the feed roller, as shown in FIG. 15A, the leading edge 301 of the regulating member is turned up toward the separation nip portion N1 following the peripheral surface of the feed roller, and the bill entry path R is opened. Thus, it comes into contact with the peripheral surface of the brake roller 130. At this time, since only the lower surface of the first banknote P1 whose tip is in contact with the brake roller is in contact with the feed roller, when the feed roller rotates forward, only the first banknote passes through the separation nip portion N1, Since the second and subsequent banknotes are restrained by the regulating member and the brake roller, normal conveyance can be realized after separating the first banknote from the second and subsequent banknotes.
When the feed roller 110 continues normal rotation in this state, only the first bill P1 passes through the separation nip portion N1, and the remaining bills after the second are advanced by the brake roller 130 and the back surface of the regulating member. The forward blocking state in which the movement is blocked is maintained (FIG. 16A). The forward blocking state is maintained when the feed roller stops normal rotation when the trailing edge of the first banknote P1 drawn and conveyed by the drawer conveyance unit 250 passes through the separation nip portion.

As shown in FIG. 15 (a), after the leading edge of the first banknote P1 that has been separated and passed through the separation nip portion N1 passes through the nip portion N2 of the drawer roller pair, the position of FIG. When further advanced and detected by the next point sensor 253 as shown in FIG. 16A, the control means 1000 stops the paper feed motor 70 (FIG. 19, steps S18 and S19). For this reason, the feeding roller 30 and the feed roller 110 are stopped, and the drawer roller pair 251a and 251b driven by the drawer conveyance motor 255 pulls the banknote P1 from the separation nip portion N1.
In the state of FIGS. 15B and 15C, the first engaging portion 32, the second engaged portion 52, the second engaging portion 53, and the second engaged portion 62 are rotated forward by the paper feed motor 70. ing.
At the time of FIG. 16 (a) when the bill is advanced from the stage of FIG. 15 (a) and detected by the next point sensor, the bill P1 is nipped at the separation nip portion N1 by the extra length L1. However, since the banknote P1 is pulled out, the feed roller is rotated in the forward direction (FIG. 19, step S20). While the upstream timing pulley, the timing clutch, and the feeding roller are stopped due to the stop of the paper feed motor 70, the feed roller is further rotated with the bill P1, that is, continuously rotated from the outside, whereby the upstream timing pulley, The timing clutch sequentially resumes normal rotation, and the second and first relative rotation sections 45 and 40 once lost by the paper feeding and separation operations by driving the paper feeding motor shown in FIGS. Each play recovers sequentially after FIG. 16 (FIG. 19, steps S21 and S22).

That is, in the states of FIGS. 15B and 15C, the first engaging portion 32, the second engaged portion 52, the second engaging portion 53, and the second engaged portion 62 are positively moved by the paper feed motor 70. When the paper feeding motor stops, the first engaging portion 32, the second engaged portion 52, and the second engaging portion 53 stop moving as shown in FIGS. 16 (b) and 16 (c). On the other hand, only the second engaged portion 62d rotates together with the drawn banknote and rotates in the same direction.
That is, as shown in FIG. 16A, the first engaging portion 32, the first engaged portion 52, and the second engaging portion with the surplus length L1 of the first bill P1 remaining upstream of the separation nip portion N1. When the rotation of the joint portion 53 is stopped and the feed roller continues to rotate by driving with the extra length L1 of the banknote P1, the second engaged portion 62 is in the stopped state as shown in FIG. The play recovery operation that continues to rotate in the forward rotation direction away from the front portion 53a of the joint portion 53 is started. During this play recovery operation, the drive is not transmitted to the timing clutch, so there is almost no load. Therefore, the banknote can be easily pulled out only by the pair of drawer rollers, and the banknote is not torn and damaged.

  Since the timing clutch starts rotating when the second engaged portion 62 that has circulated in the counterclockwise direction reaches the rear portion 53b of the second engaging portion of the timing clutch that is in a stopped state and starts to drive it, As shown in FIG. 16B showing the state where the feeding roller is stopped, the first engaged portion 52 located at the position in contact with the front portion 32a of the first engaging portion 32 starts to move away from the front portion 32a. . The timing clutch stops rotating when the rear end of the bill P1 passes through the separation nip portion N1 as shown in FIG. 17A during the period in which the first engaged portion 52 circulates counterclockwise. To do. FIGS. 17B and 17C show the positional relationship between the engaging portions and the engaged portions when the circumferential play of the relative rotation sections 40 and 45 is recovered by stopping the timing clutch.

As shown in FIG. 17A, when the banknote is pulled out by the pair of drawer rollers, the drawing ends when the rear end of the banknote passes through the separation nip portion N1, and the first sheet is fed out, separated, and downstream by the banknote separating and conveying apparatus. The transfer work is completed.
As shown in FIG. 17 (b) corresponding to FIG. 17 (a), each relative rotation section is equivalent to a length L1 from the separation nip portion N1 to the bill rear end when the paper feeding motor 70 is stopped in FIG. The “play” in the circumferential direction formed by 45 and 40 has recovered, and this “play” can be used to create a delay in the feed roller drive timing with respect to the feeding roller drive timing. Thus, the feeding and separating operations can be repeated.
Next, in step S23, the control unit 1000 operates the restricting member return mechanism 310 at the timing when the trailing edge of the first bill passes the separation nip portion N1. That is, by rotating the paper feed motor 70 in the reverse direction, the regulating member 300 is returned to the initial position together with the banknote bundle remaining in the separating portion (FIG. 18). In this example, the restricting member return mechanism 310 includes a paper feed motor 70 and a drive transmission delay mechanism D, and the paper feed motor 70 reverses the feed roller so that the banknote is in the forward blocking state shown in FIG. The bundle is returned to the initial position indicated by the solid line through the return path of the restricting member indicated by the chain line in FIG. Since the amount of rotation when the feed roller is reversed is small and almost constant, the amount of rotation necessary to return the remaining banknote bundle to the initial position may be obtained accurately in advance.
The timing for operating the regulating member return mechanism may be any time as long as the preceding banknote passes through the separation nip portion. That is, as in step S23 of FIG. 19, the regulating member return mechanism may be operated each time a sheet is fed to return the remaining banknotes to the upstream side, or the remaining banknotes may be fed when a plurality of sheets are continuously fed. You may make it return. Furthermore, after all the banknotes constituting the banknote bundle are fed and the remaining banknotes are exhausted, it is possible to return only the regulating member to the initial position by reversing the feed roller (the banknote stacking section in FIG. 5B). See).

The procedure for reversing the feed roller during the regulating member returning operation shown in FIG. 18A will be described. When play is restored by the rear end of the first bill P1 passing through the separation nip portion N1, FIG. b) As shown in (c), the first engagement portion 32 of the feed roller 30, the first engagement portion 52 and the second engagement portion 53 of the timing clutch 50, and the second engagement portion of the upstream timing pulley 60. The engaging portions 62 have returned to their initial positions. When the paper feed motor is reversed, the first engaging portion 32 first moves in the clockwise direction and presses the first engaged portion 52 to move in the same direction. Therefore, the first engaging portion 52 is integrated with the first engaged portion 52. The second engaging portion 53 rotates in the same direction to move the second engaged portion 62 in the reverse direction. For this reason, the feed roller 110 can be reversed from the upstream timing pulley 60 through the timing belt 125 and the downstream timing pulley 120.
When the feed roller reverses by a predetermined amount by this series of operations and then stops, the amount of reverse rotation required to return the remaining banknote is very small, so the first engaged portion 52, the second engaging portion 53, and the first It can be said that the positional relationship between the two engaged portions 62 is substantially within the range of the relative positional relationship that is substantially the same as that at the time of recovery of “play” shown in FIGS. Therefore, at the time of the next sheet feeding, it is possible to start from substantially the same state as the initial state shown in FIGS.

That is, since the amount of rotation when the rotating bodies 30, 50, 60 constituting the drive transmission delay mechanism D are reversed is small, when the reverse rotation is stopped, the first engagement portion 32 and the first engaged member are stopped. As shown in FIGS. 18B and 18C, the joint portion 52, the second engaging portion 53, and the second engaged portion 62 maintain an initial positional relationship that is substantially equivalent to FIGS. 17A and 17B. Therefore, the restored play can be maintained in the next paper feeding.
Therefore, when the feeding of the first banknote P1 is completed, the remaining banknotes after the second one are all returned to the initial position together with the regulating member, and the leading edges of the second and subsequent banknotes at the time of the next feeding. Does not remain in the separation part. For this reason, it is possible to greatly reduce the occurrence rate of separation failure in the second and subsequent sheet feeding. This is true not only when the regulating member returning mechanism is operated every time one sheet is fed, but also when the remaining banknotes are returned by operating the regulating member returning mechanism when a plurality of sheets are continuously fed.
Unlike the initial set, the banknote bundle returned to the initial position shown in FIG. 18A is aligned with the front surface along the regulating member, and is shaped into a wedge shape at the next paper feeding. Is easier and more reliable.

If foreign matter that cannot be detected by the sensor at the time when the first banknote P1 shown in FIG. 17A ends is left in the separation nip portion N1, the next separation operation is hindered. It is necessary to reverse the feed roller in order to discharge the foreign matter out of the apparatus. In this example, the regulating member that has been displaced and deformed to the separating portion side in conjunction with the reverse operation of the feed roller for discharging returns to the initial position. It can be said that it is part of the operation.
In addition, the positional relationship between the first engaging portion 32 and the first engaged portion 52 when play is recovered is merely an example, and both portions are determined by the length of the extra bill length L1 shown in FIG. Although the positional relationship is not constant, the first and second relative rotation sections required when the paper feeding motor rotates the feeding roller in order to feed the next bill can be sufficiently secured. . That is, in the example of FIG. 17B, the first engaging portion 32 and the first engaged portion 52 are in a slightly separated positional relationship, unlike the initial state of FIG. 13B. Therefore, the initial position of the first engaging portion 32 when the feeding roller 30 starts rotating when the next banknote is fed is the position shown in the drawing, and until the first engaging portion 52 comes into contact with the rear portion 52b. The turning angle is less than 250 degrees.

  That is, in order to recover the “play” due to the relative rotation section once lost by the feeding operation by the feeding roller, the length of the banknote drawn by the pair of drawing rollers 251a and 251b is set from the separation nip portion N1 when the feed roller 110 is stopped. It corresponds to the extra length L1 of the banknote remaining behind. For example, when it is assumed that the “play” in the relative rotation section is lost when the banknote is fed toward the separation nip portion N1 by 90 mm due to the rotation of the feeding roller 30 by 1.4, the extra length L1 of the banknote Is 90 mm, “play” can be recovered by rotating the feed roller along the bill by a length of 90 mm in the circumferential direction.

Although the surplus length L1 differs depending on the bill length, in the above example, the rotation of the feeding roller at which the surplus length L1 of the bill becomes about 90 mm without stopping the paper feed motor 70 at the timing when the next point sensor 253 detects the leading edge of the bill. Control to stop the paper feed motor when the amount is reached.
Note that when the “play” in the relative rotation section is recovered, the initial state where the first engaging portion 32 and the first engaged portion 52 are always in contact with each other is not always restored. That is, when the “play” is recovered, the first engaging portion 32 and the first engaged portion 52 may be slightly separated from each other. In this case, the extra length L1 in the next paper feeding operation varies. Although this occurs, there is no problem if the “play” range is set large enough to absorb this variation.

Further, when the feed roller continues to rotate more than necessary due to rotation with the banknote, the feeding roller starts to rotate and the next banknote is fed out, but the timing at which the banknote rear end finishes passing through the separation nip portion N1 and There is no problem if the feed roller is configured to stop within the range of the total circumferential length of each relative rotation section by appropriately setting the relationship with each relative rotation section.
Although the position where the next point sensor 253 is disposed is in the downstream side separated from the drawing roller pair in the illustrated example, it may be closer to the drawing nip portion N2 than the illustrated position, or the position of the drawing nip portion N2 It may be arranged upstream.

[Operation of restriction member and restriction member return mechanism]
When the feeding roller 30 is stopped in the state before the start of paper feeding shown in FIG. 13A, the regulating member 300 maintains the suspended initial posture, but the banknote bundle P is set on the banknote stacking unit 10. Then, the start sensor 75 is actuated to output a feeding start signal to the control means 1000. At this time, the banknote bundle P is in a state in which the front end surface is brought close to the back surface of the regulating member 300. In this example, at this time, the front edge of each banknote constituting the banknote bundle is not in an aligned state, and the position of the front edge of each banknote varies.
In this example, at this time, the drive transmission delay mechanism D blocks the transmission of the driving force between the feed roller and the feed roller 110, so that the paper feed motor 70 moves the feed roller 30 as shown in FIG. Even when the feed roller is driven to rotate in the forward rotation direction a, the feed roller stops rotating.
When the control unit 1000 drives the paper feed motor 70 based on the feeding start signal and rotationally drives the feeding roller 30 in the forward rotation direction a, the entire banknote bundle P faces the separation unit 100 as shown in FIG. In order to move forward, the regulating member 300 is pressed by the banknote bundle, and the movable portion 300b, which is a portion below the fixed support portion 305, starts to be displaced and deformed while drawing a locus in an arc shape in the forward direction.

At the stage where the banknote bundle is set, the banknote bundle may be already shaped into a wedge shape as shown in FIG. 15 (a), but according to the banknote separating and conveying apparatus, the banknote bundle setting mode and regulation Regardless of the position of the member, normal feeding, separation operation, and return operation of the remaining banknote and the regulating member are sequentially performed by driving the feeding roller.
When the driving of the feeding roller is started, driving of the drawer conveying unit 250 is started.
In the state where the restricting member 300 closes the approach path R as shown in FIG. 14A, the tip edge 301 is locked by the outer peripheral surface of the stopped feed roller 110 and the upward movement is restricted. Therefore, even if a pressing force in the forward direction is further applied from the banknote bundle, it will not be displaced or deformed any further, and the banknote bundle whose bottom surface is supported by the transport surface 10a will contact the front surface with the back surface of the regulating member. The maintained state can be maintained. For this reason, as shown in FIG. 14, the front surface of a banknote bundle can maintain the wedge shape suitable for paper feeding as a whole.

Next, when the feed roller 110 rotates in the paper feeding direction a while the restricting member 300 is in the closed state of the entry path R, the leading edge 301 that has been in a locked state with the outer peripheral surface of the feed roller until then is released. Can be deformed to the brake roller side. The restricting member retreats (moves) the leading edge in a direction to open the entry path R, and allows the first banknote to enter the separation nip portion (FIG. 15A).
When the feed roller 110 continues normal rotation in this state, only the first bill P1 passes through the separation nip portion N1, and the remaining bills after the second are advanced by the brake roller 130 and the back surface of the regulating member. The forward-prevented state is prevented (FIGS. 16A and 17A). The forward blocking state is maintained when the feed roller stops normal rotation when the trailing edge of the first banknote P1 drawn and conveyed by the drawer conveyance unit 250 passes through the separation nip portion.

In this example, the control means 1000 returns the regulating member to the initial position by operating the regulating member return mechanism 310 at the timing when the trailing edge of the first banknote passes the separating nip portion N1, and remains in the separating portion. The second and subsequent bills are returned to the upstream side (FIG. 18 (a)). In this example, the banknote bundle in the forward blocking state shown in FIG. 17A by reversely driving the regulating member return mechanism 310, that is, the paper feed motor 70 and the drive transmission delay mechanism D is changed to FIG. It returns to the initial position indicated by the solid line by passing through the return path of the restricting member indicated by the broken line.
Accordingly, when the feeding of the first banknote P1 is completed, all the remaining banknotes after the second bank will return to the initial position, and the leading edge of the second banknote and thereafter will be separated at the time of the next feeding. No longer remain. For this reason, it is possible to greatly reduce the occurrence rate of separation failure in the second and subsequent sheet feeding.

[Summary of Effects and Effects of First Embodiment of Second Invention]
In the banknote separating and conveying apparatus 1 according to the first embodiment of the second aspect of the present invention, in order to start the rotation of the feed roller 110 with a predetermined time difference after the feeding operation by the feeding roller 30 is started, the feeding roller and the feed roller A timing clutch 50 and an upstream timing pulley 60 for forming the relative rotation sections 40 and 45 are interposed in the drive transmission path therebetween. That is, the first relative rotation section 40 is provided between the feeding roller and the timing clutch, and the second relative rotation section 45 is provided between the timing clutch and the upstream timing pulley. As a result, even when the feeding roller is rotated by rotating the sheet feeding motor, the feed roller is not transmitted to the feed roller and is stopped until there is no “play” in the circumferential direction corresponding to the total of the relative rotation sections.
The banknote bundle in the initial position by the rotation of the feeding roller 30 moves toward the separation part while pressing the restriction member 300, but cannot enter the separation nip part due to the restriction member. The front end of the banknote bundle is aligned and aligned in a wedge shape along the rear surface of the restricting member by stopping the movement while the leading end of the restricting member is in contact with the peripheral surface of the feed roller in the stopped state.

When the play roller, timing clutch, and timing pulley continue to rotate normally with the leading edge of the banknote bundle in contact with the regulating member 300, there is no “play” formed by each relative rotation section, and the feed roller rotates together with the feed roller. To do. When the feed roller rotates, the regulating member that has been locked by the feed roller is released upward from the feed roller to open the separation nip part, and the first banknote can easily enter the separation nip part to separate the banknotes. Is started.
When the leading end of the separated banknote P1 reaches the next point sensor 253 and is detected, the control unit 1000 stops the paper feed motor 70.
The banknote P1 is pulled out by the pulling nip N2 of the pulling roller pair 251a, 251b driven by a pulling / conveying motor 255 different from the paper feeding motor 70, and continues to be conveyed. Each of the positions of the banknotes nipped in the separation nip portion N1 and the extra length L1 up to the rear end of the banknotes is lost due to the feed roller being rotated around the banknotes until it is completely pulled out by the drawing rollers. The “play” of the relative rotation sections 40 and 45 is restored.
When the first banknote P1 is drawn, separated, and drawn out, “play” is restored and the circumferential positional relationship of the feeding roller, timing clutch, and timing pulley returns to the initial state. The same operation can be repeated with simple control even when starting.

According to the banknote separating and conveying apparatus 1 of the present invention, even if the leading ends of the banknotes constituting the banknote bundle P are in an irregular state or in a reverse wedge shape that is not suitable for paper feeding, the feeding is started. Since the regulating member shapes the front side of the banknote bundle into a wedge shape suitable for paper feeding, the banknotes are separated, so that only the first banknote can be supplied in advance to the separation nip portion. For this reason, the 2nd banknote can prevent the double feed which passes the separation nip part ahead of the 1st sheet, and can perform reliable and stable banknote separation.
Further, this series of feeding and separating operations is realized only by the purely mechanical configuration of the drive transmission delay mechanism D, and does not require complicated control to switch the forward / reverse driving of the motor at fine timing. As a result, high-speed processing and high durability can be achieved. Moreover, the drive transmission delay mechanism D has a simple and simple structure and can be manufactured at low cost.
Furthermore, the control means returns the remaining banknotes to the upstream side by operating the restricting member return mechanism 310 after the leading edge of the preceding paper sheet passes the separation nip portion at an arbitrary timing, so that the remaining banknotes approach the separation nip. Therefore, it is possible to eliminate the separation failure occurring at the time of the next paper feeding.

<B-2: Second Embodiment of Second Invention>
20 (a) and 20 (b) are a plan view showing a main part configuration (feeding part 20) of the banknote separating and conveying apparatus 1 according to the second embodiment of the second invention, and an engaging part in the relative rotation section. It is explanatory drawing (CC sectional drawing) which shows operation | movement of a to-be-engaged part. FIG. 21A is a front perspective view of a state in which the feeding roller and the upstream timing pulley are assembled to the feeding roller shaft, and FIG. 21B is a front perspective view of the state in which the feeding roller shaft is removed from the configuration of FIG. (C) is a front side perspective view which shows the state which removed the division | segmentation piece of the feeding roller of the front side from the structure of (b). FIG. 22A is a rear perspective view of the state where the feeding roller and the upstream timing pulley are assembled to the feeding roller shaft, and FIG. 22B is a rear perspective view showing the state where the feeding roller shaft is removed from the configuration of FIG. (C) is a back side perspective view which shows the state which removed the division piece of the feeding roller of the front side from the structure of (b).
In addition, the same code | symbol is attached | subjected and demonstrated to the same part as the delivery part 20 of 1st embodiment. Further, since the configurations of the separation unit 100 and the drawer conveyance unit 250 are substantially the same as those in the first embodiment, illustration is omitted. Therefore, the description of the corresponding parts in FIGS. 7 and 13 to 18 applies to the configurations and operations of the separating unit 100 and the drawer conveying unit 250 as they are.
As in the first embodiment, the regulating member 300 is disposed between the feeding portion 20 and the separation 100 (or in the feeding portion 20) as shown in FIG.

The banknote separating and conveying apparatus 1 according to the second embodiment is different from the first embodiment in that the timing clutch 50 is omitted and the feeding roller 30 and the upstream timing pulley (upstream transmission member) 60 are provided on the feeding roller shaft 21. The feed roller and the upstream timing pulley are arranged adjacent to each other via a relative rotation section 80 while being arranged so as to be rotatable relative to each other.
That is, the banknote separating and conveying apparatus 1 according to the second embodiment has a feeding unit 20 that feeds out banknotes one by one from the banknote bundle P by the feeding roller 30, and the second and subsequent banknotes together with the first banknote from the feeding unit 20. A separation nip portion N1 that passes only the first banknote P1 in contact with the feeding roller and sends it to the downstream side and prevents the second and subsequent banknotes from advancing when the double feeding is performed while the sheets are being fed out. A separating unit 100 provided, a regulating member 300 that regulates the front position of the banknote bundle in the feeding section when in the initial position and is pressed and displaced when the banknote bundle (front end face position) is displaced in the transport direction; A drawer conveyance unit 250 that draws and conveys the first banknote P1 partially remaining in the separation unit, a relay transmission unit 200 that transmits driving force between the feeding unit 20 and the separation unit 100, and a preceding Banknotes ( For example, a regulating member (residual banknote) which operates after the first banknote) passes through the separating section and returns the succeeding banknote (for example, the second and subsequent banknotes) remaining in the separating section together with the regulating member 300 to the upstream side. ) A return mechanism 310 and a control means 1000 for controlling various control objects.

As shown in FIGS. 20 and 21, the feeding unit 20 includes a feeding roller shaft 21 that is orthogonal to the bill conveyance direction, a feeding roller 30 that rotates around the axis of the feeding roller shaft, and is sequentially arranged along the axial direction. An upstream timing pulley (upstream transmission member) 60, a paper feed motor (feed motor) 70 that normally drives the feeding roller in the transport direction (counterclockwise direction) a, the feeding roller 30, and the upstream timing pulley 60; And a drive transmission delay mechanism D that delays (connects) each drive force in both forward and reverse directions by providing a relative rotation section 80 therebetween.
As shown in FIG. 7 and the like, the separating unit 100 includes a feed roller (separating roller) 110 that contacts and conveys the surface of the first bill P1 fed by the feeding roller 30 when rotated forward, and a feed roller And a friction separating member (brake roller) 130 that forms a separation nip portion with the roller and prevents the second and subsequent bills from moving forward.

As shown in FIG. 7 and the like, the relay transmission unit 200 includes a downstream timing pulley (downstream transmission member) 120 that is coaxially disposed adjacent to the feed roller and rotates integrally with the feed roller, an upstream timing pulley, and a downstream side. A timing belt (relay transmission member) 125 that relays transmission of driving force to and from the timing pulley 120.
As shown in FIG. 7 and the like, the drawer conveyance unit 250 is disposed at a downstream position where the distance L to the separation nip portion N1 is shorter than the length in the banknote conveyance direction and forms a drawer nip portion N2 (conveyance) Members) 251a, 251b, a next point sensor 253, and a drawer conveying motor 255 for driving the pair of drawer rollers.

The drive transmission delay mechanism D shown in FIGS. 20 and 21 allows the circumferential positional relationship between the feeding roller 30 and the upstream timing pulley 60 to be bi-directionally rotatable between the initial positional relationship and the final positional relationship, and Until the positional relationship of the feeding roller with respect to the upstream timing pulley reaches the final positional relationship from the initial positional relationship, the driving force is not transmitted to the upstream timing pulley 60 and after the final positional relationship is reached. A configuration for transmitting the driving force is provided.
Here, the initial positional relationship means a state where the engaging portion 33 is in the initial position indicated by reference numeral 33-1 with respect to the engaged portion 62 in FIG. 20B, and the final positional relationship is the same. In the figure, it means that the engaging portion 33 is in the final position indicated by reference numeral 33-2 with respect to the engaged portion 62.

As shown in FIG. 15A, the control unit 1000 appropriately adjusts the first banknote P1 fed by the feeding roller 30 to reach the drawing nip portion N2 of the drawing roller pair when the feed roller 110 rotates forward. At the (optimal) timing, the drive to the feeding roller by the paper feed motor 70 is stopped, and the banknote is pulled out and transported by the pair of drawer rollers, thereby utilizing the transport force of the extra length L1 of the first banknote. Then, the feed roller 110, the relay transmission member 125, and the upstream timing pulley 60 are rotated forward.
The upstream timing pulley 60 that rotates in the forward direction is relatively rotated within the range of the relative rotation section 80 until the trailing edge of the bill passes through the separation nip portion N1 with respect to the feeding roller 30 in a stopped state, and after passing through the separation nip portion. At the end of the relative rotation of the upstream timing pulley, the feeding roller and the upstream timing pulley return to the initial positional relationship (see FIG. 17).
Note that the position control of the banknote bundle by the regulating member 300 when the feeding roller is stopped, the shaping of the banknote bundle due to the displacement of the regulating member during the forward rotation of the feeding roller, the entrance regulation to the entry path R, and the regulation during the forward rotation of the feed roller. An operation in which the member opens the entry path R to allow the first banknote to pass through the separation nip portion, and a regulating member return mechanism 310 (feed) after the preceding banknote, for example, the first banknote passes through the separation nip portion. The operation of the paper motor 70 and the like to operate to reverse the feed roller and return the remaining banknote bundle and the regulating member to the upstream side is the same as in the first embodiment, and thus the description thereof is omitted. The point that only the restricting member can be returned to the initial position by operating the restricting member return mechanism after all the bills constituting the bill bundle are fed is the same as in the first embodiment. . In the following modified examples, the description of the restricting member is omitted for the same reason as described above.

Next, a specific configuration and operation of the drive transmission delay mechanism D will be described with reference to FIGS.
The relative rotation section 80 provided in the drive transmission delay mechanism D is engaged in the process of relative rotation in the forward and reverse directions with respect to the engaging portion 33 provided in the feeding roller 30 and the upstream timing pulley 60. It is formed between the engaged portion 62 that engages with or disengages from the mating portion 33.
In the initial state in which the feeding roller 30 and the upstream side timing pulley 60 are stopped, the engaging portion 33 is connected to the engaged portion 62 indicated by reference numeral 33-1 as shown by a broken line in FIG. It is located on the front side in the rolling direction (front portion 62a side). A direction in which the engaging portion 33 that is in an initial state when the feeding roller rotates forward and sends out the first bill toward the separation nip portion is separated from the front portion 62a of the engaged portion 62 that is in a stopped state ( Rotating and moving in the counterclockwise direction in FIG. 20B, the engaging portion 33 circulates and the rear portion of the engaged portion 62 as shown by the broken line (reference numeral 33-2) in FIG. 20B. After abutting 62 b, the driving force is transmitted to the engaged portion 62 to start forward rotation of the upstream timing pulley, and the feed roller 110 is driven to rotate forward via the relay transmission member 125.

  The control unit 1000 drives the feeding roller by the paper feeding motor 70 after it is determined that the first banknote P1 fed out by the feeding roller 30 has reached the drawing nip portion N2 of the drawing roller pair. By carrying out bill conveyance by the pair of drawing rollers while stopping, the feed roller, the relay transmission member 125, the upstream side using the conveyance force due to the extra length L1 of the bill left upstream from the separation nip portion 100 The timing pulley 60 is rotated forward. As a result, the upstream timing pulley and the initial position of the feeding roller when the engaged portion 62 of the upstream timing pulley contacts with the engaging portion 33 of the feeding roller in the stopped state or rotates to a position close to it. Return to relationship is complete.

<B-3: Third Embodiment of Second Invention>
23A, 23B, and 23C are a plan view, a front view, and a front view showing another configuration example of the relay transmission mechanism in the feeding unit 20 of the banknote separating and conveying apparatus according to the third embodiment of the second invention. It is a perspective view.
In the first and second embodiments described above, the configuration including the timing pulley and the timing belt is employed as the relay transmission mechanism that transmits the driving force between the feeding unit 20 and the separation unit 100, but this is only an example.
FIG. 23 shows an example in which the relay transmission mechanism is composed of a plurality of gears.
In the feeding unit 20, an output gear 70 a integrated with the output shaft of the paper feeding motor 70 meshes with a driven gear 71 fixed to the shaft 35 of the feeding roller 30 in the same axial center. The feeding roller is composed of divided pieces 30a and 30b. One of the divided pieces 30a has an engaging portion 33 constituting a drive transmission delay mechanism D projecting toward an upstream transmission gear 150 as an upstream transmission member. Has been. On the opposite surface of the upstream transmission gear 150, an engaged portion 152 that protrudes from and engages with the engaging portion 33 in the process of circular movement is provided. A relative rotation section 80 is formed between the engaging portion 33 and the engaged portion 152.

In the separating unit 100, a feed roller 110 has a shaft core fixed to the feed roller shaft 101, and a shaft core of a downstream transmission gear 155 as a transmission member is fixed to an end portion of the feed roller shaft 101.
A plurality of intermediate gears 160 as relay transmission members are disposed between the upstream transmission gear 150 and the downstream transmission gear 155.
This embodiment uses an upstream transmission gear 150, a downstream transmission gear 155, and an intermediate gear 160 in place of the upstream timing pulley, the downstream timing pulley, and the timing belt in the second embodiment. Since there is no change in the behavior of the engaging portion 33 and the engaged portion 152 constituting the delay mechanism D, a duplicate description is omitted.
The restricting member 300 is disposed between the feeding unit 20 and the separating unit 100 (or in the feeding unit 20) as shown in FIG.
When the feeding roller is stopped, the position of the banknote bundle is regulated by the regulating member 300, the banknote bundle is shaped by the displacement of the regulating member when the feeding roller is rotated forward, and the entrance path R is entered. The operation of allowing the first banknote to pass through the separation nip portion by opening the entry path R, and the regulating member return mechanism 310 is activated after the preceding banknote, for example, the first banknote passes through the separation nip portion. The operation of reversing the feed roller to return the remaining banknote bundle and the restricting member to the upstream side is the same as in the first embodiment, and thus the description thereof is omitted.

<Summary of Configuration, Action, and Effect of Second Invention>
1. In the paper sheet separating and conveying apparatus according to the second aspect of the present invention, the feeding roller 20 feeds the paper sheets one by one from the paper sheet bundle by the feeding roller 30, and the paper sheets fed from the feeding section are in a double feed state. At a certain time, only the first sheet is passed and sent downstream, and the separation unit 100 that prevents the second and subsequent sheets from moving forward, and the feeding unit and the separation unit are arranged at the initial position. A regulating member 300 that regulates the position of the front end face of the sheet bundle in the feeding section when it is in the feeding section and is pressed and displaced when the sheet bundle (front end face position) is displaced in the transport direction, and a part in the separating section. A drawer conveyance unit 250 that draws and conveys the remaining first sheet, a relay transmission unit 200 that transmits driving force between the feeding unit and the separation unit, and a first sheet that passes the separation unit. The second and subsequent sheets of paper that act after passing through and remain in the separation section together with the regulating member Comprising a regulating member (residual paper sheet) return mechanism 310 that returns to the flow side, the control unit 1000 for controlling the various control target, the.

  Further, the feeding section includes a feeding roller shaft 21 orthogonal to the paper sheet conveying direction, a feeding roller 30 that rotates around the axis of the feeding roller shaft, and that is sequentially arranged along the axial direction, and an upstream transmission member 60. In addition, a feed motor 70 that forwardly drives the feeding roller in the conveying direction, and at least one relative rotation section 80 (40, 45) between the feeding roller and the upstream transmission member is provided to drive in both forward and reverse directions. A drive transmission delay mechanism D that delays (intermitts) the transmission of force. The separation unit 100 forms a separation nip portion N1 between the feed roller 110 that contacts and conveys the first sheet surface fed by the feeding roller when it rotates forward, and the feed roller. And a friction separating member (brake roller) 130 for preventing the advance of the sheets after the first sheet. The relay transmission unit 200 is coaxially disposed adjacent to the feed roller and rotates integrally with the downstream transmission member 120, and the relay transmission member 125 relays driving force transmission between the upstream transmission member and the downstream transmission member 120. And comprising. The drawer transport unit 250 is disposed at a downstream position where the distance from the separation nip portion is shorter than the length of the paper sheet in the transport direction, and forms a drawer nip portion (drawer transport members) 251a and 251b, and the drawer A drawer conveyance motor 255 that rotates a feed roller not driven by the paper feed motor in the conveyance direction by driving one of the conveyance members. The drive transmission delay mechanism D allows the circumferential positional relationship between the feeding roller and the upstream transmission member to be bi-directionally rotatable between the initial positional relationship and the final positional relationship, and the feeding roller relative to the upstream transmission member. Until the positional relationship reaches the final positional relationship from the initial positional relationship, the driving force is not transmitted to the upstream transmission member 60, and the driving force is transmitted after the final positional relationship is reached. The control means stops driving the feeding roller by the feeding motor to the feeding roller at an appropriate timing when the first paper sheet fed by the feeding roller reaches the drawing nip when the feed roller rotates forward. By carrying out drawing conveyance of the paper sheet by the conveyance member, the feed roller, the relay transmission member 125, and the upstream transmission member are rotated forward using the conveyance force of the first paper sheet, and fed by the paper sheet drawing means. Rotate the roller in the transport direction.

Relative rotation within the range of the relative rotation section until the trailing edge of the paper sheet passes through the separation nip portion with respect to the feeding roller in which the upstream transmission member that rotates normally is stopped, and stops after passing through the separation nip portion, At the end of the relative rotation of the upstream transmission member, the feeding roller and the upstream transmission member return to the initial positional relationship.
Similar to the first invention, the restricting member 300 is located on the front side of the sheet bundle set on the conveying surface 10a when the feeding roller is stopped, and closes the entry path to the separation unit. The wedge with the leading edge of the first sheet of paper as the apex at the front of the sheet bundle while closing the entry path by bringing the leading edge into contact with the outer peripheral surface of the feed roller in a stopped state when pressed forward by When the feed roller rotates forward, the leading edge is retracted to a position where the entry path is opened to allow the first sheet of paper to enter the separation nip portion. Then, the control means operates the regulating member return mechanism 310 at the timing when the rear end of the first sheet passes through the separation nip portion.

According to the second aspect of the present invention, even when the regulating member 300 is not provided, a single motor is used and purely mechanically driven without individually driving the feeding roller and the feed roller by a plurality of motors. With this configuration, it is possible to prevent the second and subsequent sheets from passing through the separation nip portion prior to the first sheet by not starting the rotation of the feed roller until the feeding roller rotates by a predetermined angle. it can.
That is, when paper sheets of different lengths are mixed, the leading edge of the multi-fed paper sheet is fed to the friction separating member 130 or the feed roller in the feeding and separating operation from the paper sheet bundle in which the leading edges are uneven. 110, the leading edge is aligned and the first sheet is always placed in front of the second sheet to enter the separation nip portion N1 to achieve stable separation. Therefore, not the feed roller but the feed roller is directly driven by the paper feed motor, and the drive force is indirectly transmitted to the feed roller via a clutch mechanism (drive transmission delay mechanism D) that provides a time difference in the drive force transmission timing. I tried to do it. For this reason, it becomes possible to drive the feed roller before the feed roller. In addition, a simple mechanical configuration in which the feeding roller and the feed roller are driven by a single motor has been achieved.

  At the time when the feed roller starts driving, the “play” in the relative rotation section constituting the drive transmission delay mechanism is once lost, but there is an extra length portion upstream of the separation nip portion between the feed roller and the friction separation member. The “play” of the relative rotation section is restored at the time when the idle rotation of the feed roller and the upstream transmission member is completed when the remaining paper sheet is pulled out by the drawing and conveying member. For this reason, it is possible to resume the next paper sheet feeding and separating operation without particularly controlling the drive motor.

In the present invention, the sheet bundle is not positively pressed from above. If the paper sheet bundle is over-pressurized, the paper sheet will be crumpled when the feeding force from the feeding roller is continuously applied to the paper sheet whose tip is in contact with the friction separating member 130 or the feed roller. Paper cannot be fed. It is possible to feed paper sheets while preventing them from being crushed by pressing the paper sheet bundle with a minimum light load while feeding it with a light feeding force that can be stroked. It can prevent the paper sheet from being crushed. That is, even if the paper bundle at the feeding position is not positively pressed, normal feeding and crushing after feeding can be prevented by the weight of the paper bundle and the waist of the paper.
The number of rotations of the feeding roller until the leading edge of the paper sheet fed by the feeding roller that has started feeding operation by the paper feeding motor reaches the separation unit is the diameter of the feeding roller, the distance from the feeding roller to the separation unit, and one feeding It is determined in consideration of variation in quantity, variation in paper length, and the like. The feed roller is rotated at the timing when the leading edge of the paper sheet reaches the separating portion, but the timing at which the feed roller starts driving after the feeding roller starts driving is the circumferential length of the relative rotation section formed by the drive transmission delay mechanism D, It is determined by the length of the paper. Further, the distance L from the separation nip portion N1 to the drawing nip portion N2 is set so that the circumferential play of the relative rotation section once lost by the rotation of the feed roller by the extra length L1 of the paper sheet can be recovered. . If the length of the paper sheet drawn by the pair of drawing rollers after the feed roller stops is too short, the circumferential play cannot be sufficiently recovered. If the paper length is too long, the paper sheet is continuously pulled out after the circumferential play is recovered. As a result, an excessive tension is applied to the paper sheet, causing breakage.

In addition, when it is desired to set a long idling period (circumferential play length) by the relative rotation section provided in the drive transmission delay mechanism D, it is effective to provide a plurality of relative rotation sections between the feeding roller and the upstream transmission member. It is. Specifically, a clutch member as a third rotating member is provided between the feeding roller and the upstream transmission member, and a relative rotation section is provided between the feeding roller and the clutch member and between the clutch member and the upstream transmission member, respectively. Can be provided.
When the restriction member 300 is added to the above configuration, the restriction member prevents the paper sheet from entering the separation nip portion when the paper sheet bundle moves toward the separation portion by the forward rotation of the feeding roller. Since the front surface of the sheet bundle can be shaped (wound) into a wedge shape suitable for separation, the room for the second sheet to enter the separation nip portion prior to the first sheet can be further reduced.
In addition, after the play in the circumferential direction of the relative rotation section is recovered by the action of the drive transmission delay mechanism D, the sheet bundle remaining in the separation unit is returned to the initial position by reversing the regulating member return mechanism (paper feed motor). Can do. At this time, the restricting member also returns to the initial position, so that it is possible to smoothly shift to the next sheet feeding.

2. In another sheet separating and conveying apparatus according to the second aspect of the present invention, the relative rotation section 80 is provided in the engaging portion 33 provided in the feeding roller and the upstream transmission member 60 and is forward and backward with respect to the feeding roller. In the initial state where the feeding roller and the upstream transmission member are stopped, the engaging portion is engaged with the engaged portion 62 that engages and disengages in the process of relative rotation in the direction. The engaging portion 33 that is in the initial state when the feeding roller rotates forward and feeds the first sheet toward the separation nip portion N1 is stopped. Rotating and moving in a direction away from the front part of a certain engaged part 62, the engaging part circulates and contacts the rear part of the engaged part, and then transmits the driving force to the engaged part to the upstream side Transmitting the driving force in the conveyance direction from the feeding roller to the upstream transmission member by starting the forward rotation of the transmission member Driven to normally rotate the feed roller via a more relay transmission member. Further, the control means 1000 stops the driving of the feeding roller by the paper feeding motor after the first sheet fed by the feeding roller reaches the drawing nip portion of the drawing conveying member, and the paper by the drawing conveying member. By carrying out the leaf conveyance, the feed roller, the relay transmission member 125, and the upstream transmission member are rotated forward by using the conveyance force due to the extra length of the paper sheet remaining upstream from the separation nip portion. When the engaged portion of the upstream transmission member comes into contact with or engages with the engaging portion of the feeding roller in the stopped state, the upstream transmission member and the feeding roller return to the initial positional relationship when stopped. Is completed.

When the drive transmission delay mechanism D is composed of two parts, that is, a feeding roller and an upstream transmission member, the drive transmission delay mechanism D is relatively between the engaging portion 33 provided on the feeding roller and the engaged portion 62 provided on the upstream transmission member. A rotation section 80 is formed. In order to satisfy the request for extending the relative rotation section 80, it is effective to increase the number of relative rotation sections by disposing a clutch member between the feeding roller and the upstream transmission member.
Functions and effects when the restricting member 300 and the restricting member return mechanism 310 are added to the above-described configuration, in particular, specific actions and effects obtained by the cooperation of the drive transmission delay mechanism D and the restricting member are the same as described above. Therefore, redundant description is omitted.

3. In another sheet separating / conveying apparatus according to the second aspect of the present invention, the clutch member is located at a portion of the feeding roller shaft located between the feeding roller and the upstream transmission member, with respect to the feeding roller and the upstream transmission member. It is pivotally supported so as to be relatively rotatable (and coaxial).
In the present invention, the relative rotation section 80 includes the first relative rotation section 40 formed between the feeding roller and the clutch member, and the second relative rotation section 45 formed between the clutch member and the upstream transmission member. It is comprised from these.
The length of the relative rotation section 80 can be arbitrarily extended by arranging a clutch member between the feeding roller and the upstream transmission member to increase the number of relative rotation sections.
Functions and effects when the restricting member 300 and the restricting member return mechanism 310 are added to the above-described configuration, in particular, specific actions and effects obtained by the cooperation of the drive transmission delay mechanism D and the restricting member are the same as described above. Therefore, redundant description is omitted.

4). In another paper sheet separating and conveying apparatus according to the second aspect of the present invention, the first relative rotation section 40 is provided with respect to the first engagement portion 32 provided on the feeding roller 30 and the feeding roller provided on the clutch member 50. The second relative rotation section 45 is formed between the first engaged portion 52 that engages and disengages (disengages) in the process of relative rotation in the forward and reverse directions. A second engagement portion 53 provided on the member, and a second engagement portion provided on the upstream transmission member 60 and engaged and disengaged from the second engagement portion in the process of relative rotation in the forward and reverse directions with respect to the clutch member. In an initial state formed between the engaging portion 62 and the feeding roller, the clutch member, and the upstream transmission member are stopped, the first engaging portion is located in the forward direction of the first engaged portion. The second engaging portion is positioned on the front side in the forward direction of the second engaged portion, and the feeding roller is rotated forward to When the paper sheet of the eye is sent out toward the separation nip portion, the first engaging portion that was in the initial state rotates and moves away from the front portion of the first engaged portion that is in the stopped state. After the joint portion circulates and contacts the rear portion of the first engaged portion, the driving force is transmitted to the first engaged portion to start the forward rotation of the clutch member, and the second engagement at the initial position. When the joint part rotates forward, it rotates in a direction away from the front part of the second engaged part, and the second engaging part turns around and comes into contact with the rear part of the second engaged part. 2 The driving force is transmitted to the engaged portion to start rotation of the upstream transmission member in the conveyance direction, and the relay transmission member is transmitted by transmitting the driving force in the forward rotation direction from the clutch member to the upstream transmission member. Through which the feed roller is driven forward. The control unit 1000 stops the driving of the feeding roller by the paper feeding motor at the timing when the first sheet fed by the feeding roller reaches the drawing nip portion of the drawing conveying member, and the sheet feeding by the drawing conveying member. The feed roller, the relay transmission member, and the upstream transmission member are rotated forward by using the conveyance force due to the remaining length of the paper sheet remaining upstream from the separation nip portion by pulling and conveying the upstream side. After the second engaged portion of the transmission member rotates until it comes into contact with the second engaged portion of the clutch member that is in a stopped state, transmission of driving is started to the second engaged portion and the first engaged portion, When the first engaged portion rotates to the position where the first engaged portion contacts or approaches the first engaging portion of the feeding roller and stops, the return to the initial positional relationship between the clutch member and the feeding roller is completed.

When the drive transmission delay mechanism D is composed of three parts, that is, the feeding roller 30, the clutch member 50, and the upstream transmission member 60, the first engaging portion 33 provided on the feeding roller and the first engaged portion provided on the clutch member. A first relative rotation section 40 is formed between the joint portion 51 and a second portion between the second engagement portion 53 provided on the clutch member and the second engaged portion 62 provided on the upstream transmission member. By forming the relative rotation section 45, the total circumferential play length of the relative rotation section 80 can be extended.
Functions and effects when the restricting member 300 and the restricting member return mechanism 310 are added to the above-described configuration, in particular, specific actions and effects obtained by the cooperation of the drive transmission delay mechanism D and the restricting member are the same as described above. Therefore, redundant description is omitted.

<C: Third invention of the present invention>
[C-1: Basic Configuration of First Embodiment of Third Invention]
FIG. 24 is a front view showing a schematic configuration of a banknote separating and conveying apparatus as an example of a paper sheet separating and conveying apparatus according to the first embodiment of the third aspect of the present invention, and FIG. It is a plane block diagram, (b) is AA sectional drawing of (a), (c) is BB sectional drawing of (a).
FIG. 9A is a front perspective view of a state in which the feeding roller, timing clutch, and upstream timing pulley are assembled to the feeding roller shaft, and the feeding roller shaft is removed from the configuration of FIG. 9A. FIG. 9B is referred to as a front side perspective view showing the front side, and FIG. 9C is referred to as a front side perspective view showing a state where the split pieces of the front side feeding roller are removed from the configuration of FIG. 9B. To do. Further, FIG. 10A is referred to as a rear perspective view of the state where the feeding roller, the timing clutch, and the upstream timing pulley are assembled to the feeding roller shaft, and the state where the feeding roller shaft is removed from FIG. 10A is shown. FIG. 10 (b) is referred to as a rear side perspective view, and FIG. 10 (c) is referred to as a rear side perspective view illustrating a state in which the divided pieces of the feeding roller on the front side are removed from FIG. 10 (b).
FIGS. 26 to 30 are diagrams for explaining a procedure for canceling the double feed generated by the driving of the feeding roller. FIGS. 26A to 30A are front views, and FIGS. 26B to 30B are diagrams. The operation explanatory diagram in the first relative rotation section, and the respective drawings (c) are the operation explanatory diagrams in the second relative rotation section. FIGS. 31A, 31B, and 31C are front views showing a state in which the multi-fed banknote return mechanism and the regulating member return mechanism are operated to return the remaining banknotes together with the regulating member, and in the first relative rotation section. It is operation | movement explanatory drawing and operation | movement explanatory drawing in the 2nd relative rotation area. 32 (a) and 32 (b) are a perspective view and an exploded perspective view showing the configuration of the double-feed banknote return mechanism, and FIG. 33 is a banknote separation / conveyance including the double-feed banknote return mechanism and the regulating member return mechanism. FIG. 34 is an external perspective view of the main part of the apparatus, and FIG. 34 is a flowchart showing the double feed elimination procedure.
The overlapping description of the configuration, operation, and effects common to the second aspect of the present invention is omitted as appropriate.

A banknote separating / conveying apparatus (paper sheet separating / conveying apparatus) 1 is a feeding roller from a banknote bundle P composed of a plurality of banknotes stacked on a banknote stacking section (paper sheet stacking section) 10 in the vertical direction or diagonally up and down. 30, in the process of feeding one by one from the bottom banknote P1, the second and subsequent banknotes are overlapped and conveyed, and the separation roller pair 110, 130 causes the other than the first banknote P1. It has a configuration in which only the first banknote is conveyed downstream while preventing the banknotes (second and subsequent banknotes) from moving forward.
In particular, in the present invention, the second banknote P2 is the first banknote while using only the single paper feeding motor 70 that directly drives the feeding roller as the driving source used for the feeding section 20 and the separating section 100. The separation failure caused by being supplied to the separation unit 100 in a state preceding to the drive is driven by the feed roller and the double feed prevention roller (feed roller) by the configuration that realizes the mechanical time difference drive by the drive transmission delay mechanism D. It is solved by changing the timing.

  In the banknote separating and conveying apparatus 1, the banknote P1 fed out from the banknote bundle P stacked on the banknote stacking section 10 one by one and the banknotes fed out from the feeding section 20 are in a double feed state. Sometimes, only the first banknote P1 is allowed to pass through and sent to the downstream side, and the separation section 100 having a separation nip portion N1 that prevents the second and subsequent banknotes from moving forward, the feeding section 20 and the separation section 100 The front surface position (front end surface position) of the banknote bundle in the feeding portion is regulated when placed in the initial position, and the front face position of the banknote bundle is displaced when displaced in the transport direction and is displaced in the same direction. The member 300 and a regulating member returning mechanism that operates after the first banknote passes through the separating portion to return the regulating member 300 to the initial position and return the second and subsequent bills remaining in the separating portion to the upstream side. 310 and a part remains in the separation part 20 A drawer conveyance unit 250 that draws and conveys the first banknote P1 from the tip, a relay transmission unit 200 that transmits a driving force between the feeding unit and the separation unit, a control unit 1000 that controls various control targets, Is roughly provided. The feeding unit 20 and the separating unit 100 constitute a paper feeding unit 15. An identification unit, a counting unit, a cash box and the like (not shown) are arranged on the downstream side of the drawer conveyance unit 250.

  Similarly to the feeding unit according to the first embodiment of the second aspect of the present invention, the feeding unit 20 includes a feeding roller shaft 21, a feeding roller (pickup roller) 30, a timing clutch (clutch member) 50, and upstream timing. A relative rotation section 40 between a pulley (upstream transmission member) 60, a paper feed motor (feed motor) 70, between the feed roller 30 and the timing clutch 50, and between the timing clutch 50 and the upstream timing pulley 60; 45, a drive transmission delay mechanism D that delays (connects / disconnects) driving force in both forward and reverse directions, and a start sensor (banknote set detection sensor) 75.

The relationship between the feeding roller 30, the timing clutch 50, the upstream timing pulley 60, and the feeding roller shaft 21 is the same as that in the first embodiment of the second aspect of the present invention.
The role of the feeding roller 30 and the driving force from the paper feeding motor 70 being transmitted to the feeding roller 30 via the output gear 70a, the driven gear 71, the feeding roller shaft 21, and the parallel pin 22 are also the second aspect of the present invention. This is the same as in the first embodiment.
The feeding roller 30 of this example is composed of two divided pieces 30a and 30b, and the timing clutch 50 and the upstream timing pulley 60 are disposed between the two divided pieces, but this is only an example. This is the same as the present invention.

The feeding roller 30 and the timing clutch 50 are configured to be able to rotate forward and backward relatively within a predetermined first relative rotation section 40 (circumferential play). The timing clutch 50 and the upstream side timing pulley 60 are configured so as to be relatively forward / reverse rotatable within a predetermined second relative rotation section 45 (circumferential play).
Since the configuration of the shaft portion 101, the feed roller 110, and the brake roller 130 that constitute the separation portion 100 is the same as that of the separation portion 100 according to the first embodiment of the second aspect of the present invention, the same portions are denoted by the same reference numerals. Therefore, the description of the overlapping configuration, operation, and effect is omitted.

The configuration of the relay transmission unit 200 is the same as that of the relay transmission unit 200 according to the first embodiment of the second aspect of the present invention. Omitted.
The double-fed banknote return mechanism 260 includes a return lever 261 that reciprocates around the shaft portion by being pivotally supported by the shaft portion 101 of the feed roller so as to be relatively rotatable with respect to the shaft portion, and a feed roller shaft portion 101. A torque limiter 265 that is arranged between the return lever and rotates the members 101 and 261 integrally in the forward rotation direction unless the torque difference between the shaft and the return lever exceeds a certain value; And a return spring (elastic urging means) 270 for urging the return lever with a spring force weaker than that of the torque limiter in a return direction opposite to the direction of integral rotation with the return lever.

  As shown in FIGS. 25 and 33, a circular insertion hole 261a provided in the proximal end portion of the return lever 261 is inserted into the portion closer to the end portion (D cut portion) of the feed roller shaft portion 101 so as to be relatively rotatable. The inner side surface 261b of the base end portion of the return lever slides with the sliding member 263 in a state where the axial position is regulated by a disc-shaped sliding member 263 inserted and fixed to the D-cut portion of the shaft portion 101. In contact. On the other hand, a press contact spring 267 is disposed between the other end surface 261c of the proximal end portion of the return lever and a washer 266 inserted through the end portion of the shaft portion 101 and fixed by the E ring 266a. The portion is elastically pressed against the sliding member 263 with a predetermined pressure. The axial position of the return lever on the shaft portion 101 is a position where it can come into contact with the leading edge of the banknote whose tip is left in the separating portion when the return lever rotates in the returning direction.

  As shown in FIG. 25 and the like, the torque limiter 265 includes a washer 266 and a pressure contact spring 267. By interposing the pressure contact spring 267 between the washer 266 and the return lever 261, the sliding member 263 ( As long as the torque difference between the shaft 101) and the return lever does not exceed a certain limit value determined by the spring force of the press contact spring, the two rotate together as a whole, while the torque difference exceeds the limit value. In this case, the return lever is allowed to rotate relative to the sliding member 263 (shaft portion 101). The spring force with which the pressure spring 267 presses the return lever base against the sliding member 263 is that the return lever 261 rotates forward with the shaft 101 when the shaft 101 is driven to rotate forward by the paper feed motor 70. On the other hand, after the return lever comes into contact with the stopper 268 provided on the fixed portion, the forward rotation is stopped and the shaft portion 101 during the forward rotation is set to start relative rotation (slip). .

On the other hand, when the shaft portion 101 stops normal rotation and enters a light load state due to the stop of the paper feed motor, the shaft portion 101 is returned together with the shaft portion 101 by the biasing force in the return direction by the return spring 270 that is constantly acting on the return lever 261. The lever reverses.
In other words, while the shaft portion 101 is rotating forward by the driving force from the paper feed motor, the return lever rotates with the shaft portion, and during this time, the return force of the return spring 270 loses its effect. On the other hand, in a state where the driving of the shaft portion 101 is stopped by the stop of the paper feed motor, the shaft portion 101 is lightly loaded by the action of the drive transmission delay mechanism D described later, so that the return force of the return spring is first exhibited and the return lever Rotates in the return direction.
In other words, the return lever 261 is always pulled by the return spring 270 in the direction in which the feed roller 110 is reversely rotated. However, since the force of the return spring 270 is weaker than the force of the pressure spring 267 of the torque limiter 265, the return lever rotates in the forward direction against the return spring as the feed roller rotates normally, and the return lever 261 stops the stopper 268. Since the torque limiter 265 slips after reaching the movable limit by contacting with the feed roller, only the feed roller rotates normally.
The brake roller 130 can be rotated with a light load in the return direction by the one-way clutch 130a. Accordingly, when the drive transmission delay mechanism D causes the relative rotation interval to cut off the drive to the feed roller shaft 101 and light load, the feed roller and the brake roller are rotated in the return direction by a small force of the return spring 270. Can be made.

  The configuration of the drawer transport unit 250 is the same as that of the drawer transport unit 250 according to the first embodiment of the second aspect of the present invention. Omitted.

The configuration of the drive transmission delay mechanism D is the same as that of the drive transmission delay mechanism D according to the first embodiment of the second aspect of the present invention. The description will be omitted.
In the drive transmission delay mechanism D, due to the presence of the first relative rotation section 40 and the second relative rotation section 45, the driving force of the feeding roller 30 is directly connected to the timing clutch 50 and the timing pulley 60 and transmitted without delay. Instead, it is transmitted intermittently and with a delay through idle sections (sections where no driving force is transmitted) set by the relative rotation sections 40 and 45. For this reason, the feed roller starts to rotate after a predetermined time from the normal rotation of the feeding roller.
In this configuration example, the regulating member 300 is disposed at the front position of the banknote bundle on the banknote stacking unit 10, and the function of shaping the banknote bundle shape and the function of limiting the open width of the entry path R are two. The first banknote (following banknote) can be prevented from entering the separation nip portion N1 prior to the first banknote (preceding banknote), and only the first banknote is separated from the second banknote. Thus, the function of sending in the forward direction can be exhibited.

The control unit 1000 stops the rotation of the feed roller at an appropriate timing (detected by the next point sensor 253) when the first banknote P1 reaches the drawer nip portion N2, and also draws a pair of drawer rollers (drawer conveyance members) 251a and 251b. By carrying out the withdrawal and conveyance of the banknote, the normal rotation of the feed roller 30, the relay transmission member 125, and the upstream timing pulley 60 is resumed using the conveyance force of the first banknote.
The upstream timing pulley 60 continues to rotate (idle) within the range of the second relative rotation section 45 with respect to the timing clutch 50 in which the upstream timing pulley 60 that has started normal rotation by the banknote conveying force is stopped. And the timing clutch 50 return to the initial positional relationship. Subsequently, when the driving force from the upstream timing pulley is transmitted, the timing clutch resumes normal rotation and rotates within the range of the first relative rotation section 40 (idling) with respect to the feeding roller 30 in a stopped state. The timing clutch 50 and the feeding roller 30 are returned to the initial positional relationship by continuing the above.

The restricting member 300 maintains the original posture at the time of non-feeding (when it is in the initial state) when the feeding roller is stopped and holds the front face of the banknote bundle at the initial (retracted) position shown in FIG. The movable portion 300b is displaced and deformed when pressed in the forward direction, and the leading edge 301 is brought into contact with the outer peripheral surface of the feed roller in the stopped state to close the bill entry path R to the separation nip portion, while This is means for shaping the front surface of the bundle into a wedge shape with the leading edge of the first banknote as the apex (FIG. 27).
Since the configuration, operation, constituent material, and other configurations of the regulating member 300 are the same as those described in the second aspect of the present invention, redundant description is omitted.
The restricting member return mechanism 310 according to the present embodiment includes a paper feed motor 70 and a drive transmission delay mechanism D. That is, in the second operating state of FIGS. 28, 29, and 30, the double-fed banknote return mechanism 260 (restriction member return mechanism) is recovered after play is recovered by the rear end of the first banknote passing through the separation nip portion N1. 310) is operated to reverse the feed roller 110, thereby returning the second and subsequent bills remaining in the separating portion to the initial position as shown in FIG. 31, and the regulating member 300 also returns to its original shape. The initial position shown in the figure can be restored by force. Further, since no remaining banknotes exist after all the banknotes in the banknote bundle have continuously passed through the separating section, only the regulating member returns to the original position when the regulating member return mechanism is operated (FIG. (Refer to the banknote stacking part 5 (b)).
At the time of the restricting member returning operation by the double-fed banknote returning mechanism 260 (the restricting member returning mechanism 310) shown in FIG. 31 (a), the feed roller 110 and the shaft portion 101 are reversely rotated, but the reverse amount is slight. For this reason, the upstream timing pulley 60, the timing clutch 50, and the paper feed roller 30 maintain substantially the same relative positional relationship as in the recovery of the circumferential “play” in FIGS. Therefore, at the time of the next sheet feeding, it is possible to start from the initial state shown in FIGS.

  In the banknote separating and conveying apparatus 1 having the above-described configuration, the second banknote P2 is fed to the separation nip portion before the first banknote P1 when being fed by the feeding roller 30 and is in contact with the brake roller 130. In order to prevent the double feed that occurs due to the occurrence of this, a double feed prevention mechanism similar to that of the first embodiment of the second invention is provided.

  The relationship between the circumferential length of the first relative rotation section 40 and the circumferential length of the second relative rotation section in the double feed prevention mechanism, particularly when the feeding roller 30, the timing clutch 50, and the upstream timing pulley 60 are relatively rotated. Since the behavior is the same as in the second aspect of the present invention, the description thereof is omitted.

The feeding roller 30 rotates in the conveyance direction and rotates first relative to the timing clutch 50 in a stopped state when the first banknote P1 of the bottommost part of the banknote bundle P is fed toward the separation nip N1. Rotation is moved within the range of the section 40, and after the rotation angle of the feeding roller 30 reaches the first end portion 40b of the first relative rotation section 40, driving is started to be transmitted to the timing clutch 50 and integrally rotated in the transport direction. To start.
The timing clutch 50 rotates and moves in the range of the second relative rotation section 45 with respect to the upstream timing pulley 60 in the stopped state, and the rotation angle of the timing clutch is the end portion (conveyance direction end section) of the second relative rotation section. After reaching 45b, the transmission of the drive to the upstream timing pulley 60 is started, and the integral rotation in the transport direction is started, whereby the feed roller 110 is rotationally driven in the transport direction via the timing belt 125.

Specifically, when the feeding roller 30 rotates, the feed roller stops rotating because the driving force is cut off due to the presence of the relative rotation sections 40 and 45. For this reason, when the multi-feed where the banknote bundle P is fed toward the separation nip portion N1 is generated by the rotation of the feeding roller, the banknote bundle P presses and displaces the regulating member 300, and the leading edge 301 of the regulating member stops. The forward movement continues until it is locked by the peripheral surface of the feed roller (FIG. 27). When the regulating member stops displacing due to the locking of the feed roller, the front face shape of the banknote bundle is shaped into a wedge shape with the first banknote as the apex, and the second and subsequent banknotes precede the first one. Thus, there is no room to proceed toward the separation nip portion N1.
In this state, when the blocking of the driving force by each relative rotation section is canceled and the feed roller starts normal rotation by the driving force from the feeding roller, the leading edge 301 of the regulating member feeds as shown in FIGS. 28, 29, and 30. The locking by the roller peripheral surface is released and the sheet is displaced upward to open the sheet passing path R to the separation nip portion N1. On the other hand, since the banknote bundle is shaped in a wedge shape with the tip of the first banknote as the apex between the regulating member and the conveyance surface 10a, there is no room for the double feeding that the second banknote precedes, Only the first sheet can enter the separation nip portion.

Next, at a timing when the next point sensor 253 detects that the leading edge of the first banknote P1 has entered the nip portion N2 of the drawing roller pair, the control unit 1000 transfers the paper from the paper feeding motor 70 to the feeding roller shaft 21. The driving force is cut off so that the feeding roller 30, the timing clutch 50, and the upstream timing pulley 60 are stopped, and the drawing roller pair 251a, 251b is rotated in the conveying direction a to nip the bill P1. Then pull it out. At the time of this withdrawal conveyance, since the rear end portion of the bill P1 is nipped by the separation roller pair, the feed roller 110 rotates with the bill and rotates in the conveyance direction, and this rotational driving force is in a stopped state. The signals are sequentially transmitted to the downstream timing pulley 120, the timing belt 125, and the upstream timing pulley 60.
When the upstream timing pulley 60 is rotationally driven in the transport direction a by the accompanying driving force from the bill P1, the timing clutch is in a stopped state within the second circumferential play range of the second relative rotation section 45. 50, the upstream timing pulley 60 is idle. When the upstream timing pulley 60 finishes idling within the second circumferential play range of the second relative rotation section 45, the timing clutch 50 starts to rotate in the transport direction a. When the idle rotation of the upstream timing pulley 60 within the range of the second circumferential play is completed, the second relative rotation section (the circumferential positional relationship between the upstream timing pulley and the timing clutch) returns to the initial state. ing.

  Next, the timing clutch 50 started to rotate in the transport direction a by the upstream timing pulley 60 rotates idly within the circumferential play range of the first relative rotation section 40 with respect to the feeding roller 30 in the stopped state. Specifically, the range of the first circumferential play that the timing clutch 50 has in the first relative rotation section 40 until the period in which the bills drawn by the draw roller pairs 251a and 251b rotate the feed roller is completed. The first relative rotation section (the circumferential positional relationship between the timing clutch and the feeding roller) is restored to the initial state when the idling is completed.

Next, a more specific configuration example and operation of the double feed prevention mechanism including the drive transmission delay mechanism D are the same as the corresponding portions of the second aspect of the present invention.
That is, as shown in FIGS. 25 (a), 9, and 10, the first relative rotation section 40 is in the initial circumferential direction positional relationship between the feeding roller 30 and the timing clutch 50 shown in FIG. 26 (b). Occasionally, the protruding first engaging portion 32 provided on one surface 31A (front surface) of the main body 31 of the feeding roller 30 and the opposing surface 51B (back surface) of the main body 51 of the timing clutch 50 are arranged on the feeding roller. In the process of relative rotation in the forward and reverse directions, a play space extending in the circumferential direction is formed between the projecting first engaged portion 52 that engages or disengages (disengages) from the first engaging portion 32. Since it is (idling section) and its behavior is the same as in the second aspect of the present invention, a duplicate description is omitted.

The structure of the timing clutch 50 and the behavior in relation to the feeding roller and the upstream timing pulley are the same as in the second aspect of the present invention.
As shown in FIGS. 25 (b), 9, and 10, the second relative rotation section 45 is in the initial circumferential positional relationship between the timing clutch 50 and the upstream timing pulley 60 shown in FIG. 26 (c). Sometimes, it is a play space (idling section) extending in the circumferential direction formed between the second engagement portion 53 of the timing clutch 50 and the second engaged portion 62 of the upstream timing pulley 60, Since the behavior is the same as in the second aspect of the present invention, a duplicate description is omitted.

In the initial state (initial position) in which the feeding roller 30, the timing clutch 50, and the upstream timing pulley 60 are stopped, the first engagement portion 32 is first engaged as shown in FIGS. The second engagement portion 53 is located on the front rotation portion 52a side (first start end portion 40a), and the second engagement portion 53 is in the conveyance rotation direction (forward rotation) of the second engaged portion 62. (Direction) It is located at the front portion 62a (first start end portion 45a).
When the feeding roller 30 is rotated in the transport direction and the first banknote P1 at the bottom of the banknote stacking unit 10 is sent out toward the separation nip portion N1, the first position at the initial position (first start end portion 40a). The first engaging portion 32 rotates in a direction away from the front portion 52a of the first engaged portion 52 in the stopped state, and the first engaging portion 32 circulates to return the rear portion 52b of the first engaged portion 52. (After reaching the first end portion 40b), the driving force is transmitted to the first engaged portion 52, and the timing clutch is started to rotate in the transport direction.

  At the beginning of the rotation of the second engaging portion 53 that was in the initial position (second starting end portion 45a) when the timing clutch 50 is stopped, the second engaging portion 62 moves away from the front portion 62a. Then, after the second engaging portion 53 circulates and comes into contact with the rear portion 62b of the second engaged portion 62 (after reaching the second end portion 45b), a driving force is applied to the second engaged portion 62. Is transmitted to start the rotation of the upstream timing pulley 60, and the driving force in the conveying direction from the feeding roller is transmitted to the timing pulley, whereby the feed roller is rotationally driven in the conveying direction via the timing belt.

[Explanation of separation operation for multi-feed bills]
Next, operation | movement of each member which comprises the banknote separation | separation conveyance apparatus in 1st Embodiment of 3rd this invention is demonstrated in relation to the conveyance timing of a banknote.
26 to 30 are diagrams for explaining a procedure for canceling the double feed generated by the driving of the feeding roller. FIGS. 26 (a), 27 (a), 28 (a), 29 (a), And FIG. 30 (a) is a principal part front view of a banknote separation conveyance apparatus, FIG.26 (b), FIG.27 (b), FIG.28 (b), FIG.29 (b), and FIG.30 (b) are FIG. It is operation | movement explanatory drawing (AA sectional drawing of FIG. 25) in a 1st relative rotation area, FIG.26 (c), FIG.27 (c), FIG.28 (c), FIG.29 (c), and FIG.30. (C) is operation | movement explanatory drawing (BB sectional drawing of FIG. 25) in the 2nd relative rotation area. FIG. 31 is a front view showing a state where the return lever and the regulating member return mechanism are operated to return the remaining banknote, and FIGS. 32A and 32B are perspective views showing the configuration of the double-feed banknote return mechanism. FIGS. 33A and 33B are a perspective view and a disassembled perspective view showing the configuration of the return lever and the torque limiter, respectively, and FIG. 34 is a flowchart showing the operation procedure of the first embodiment. It is.

  In the initial state shown in FIG. 26A, the feeding roller 30 and the timing clutch 50 are in the initial circumferential positional relationship. In this initial state, the sheet feeding motor 70 is stopped, and the circumferential play of the first relative rotation section 40 is long in the circumferential direction between the feeding roller 30 and the timing clutch 50 as shown in FIG. In this example, a maximum of 250 degrees is secured for (angle). Further, as shown in FIG. 5C, between the timing clutch 50 and the upstream timing pulley 60, the circumferential play of the second relative rotation section 45 is equal to the circumferential length (angle), which is 250 in this example. Is in a state of being secured. Therefore, a maximum of 500 degrees in the circumferential long play is ensured between the feeding roller 30 and the upstream timing pulley.

In the initial state of FIG. 26A, the shaft portion 101 and the feed roller 110 are stopped in a state in which no driving force in the forward rotation direction is applied, so that the return spring has a spring force weaker than that of the torque limiter 265. The return lever 261 maintains the state of being rotated in the return direction by the force of 270.
In this initial state, the rear portion 32b of the first engaging portion 32 is at the start end portion 40a of the first relative rotation section 40 in contact with the front portion 52a of the first engaged portion 52 as shown in FIG. And as shown in (c), the rear part 53b of the 2nd engaging part 53 exists in the start end part 45a of the 2nd relative rotation area 45 which contact | connected the front part 62a of the 2nd to-be-engaged part 62.
Even in the state of FIG. 27A, the driving force in the forward rotation direction is not applied to the shaft portion 101 and the feed roller 110 as in FIG. 26A, so the return lever 261 is returned in the return direction by the return spring 270. It keeps rotating.

A paper feed operation is started by turning on a paper feed switch (not shown) or an operation start signal from a host machine (not shown) (FIG. 34, step S31).
When the paper feed switch is turned on in the initial state and the start sensor 75 detects that the banknote bundle P is set in the banknote stacking unit 10, the control unit 1000 moves the paper feed motor 70 and the drawer transport motor 255 in the transport direction. Driving is started in the forward direction (FIGS. 27 and 34, steps S32, S33, and S34).
At this time, only the feeding roller 30 and the drawing roller pair 251a and 251b start to rotate. The presence of the first and second relative rotation sections 40 and 45 causes the feeding roller 30 and the timing clutch 50 to idle sequentially. During this period, the upstream timing pulley 60 and the feed roller 110 stop rotating.

At this stage, when the banknote bundle P moves toward the separating portion along the banknote transport surface 10a, the front face of the banknote bundle presses the back surface of the regulating member 300. For this reason, the movable portion 300b of the restricting member draws an arcuate upward trajectory with the fixed support portion 305 as a fulcrum and heads toward the feed roller circumferential surface. Stop further displacement. At this time, the banknote bundle front part sandwiched between the transport surface 10a and the regulating member 300 forms a wedge shape with the leading edge of the first banknote as the apex.
Note that step S34 is an example, and when the banknote bundle set is detected by the start sensor 75, only the paper feed motor 70 is started to drive, and the leading edge of the first banknote reaches the drawer nip portion N2 of the drawer roller pair. After detecting this, the drawer conveying motor 255 may be driven to start.

When the feeding roller 30 starts normal rotation, the first banknote P1 at the bottom of the banknote bundle P is fed out, but the tips of the banknotes constituting the banknote bundle P are uneven as shown in FIG. The banknotes after the second sheet P2 may protrude forward in the transport direction from the first banknote P1. In this state, when the feeding roller is rotated forward and the second and subsequent banknotes are overlapped with the first banknote and sent out, the second and subsequent banknotes precede the first banknote and the separation nip portion N1. Easy to reach. When the regulating member 300 is not present, the second banknote P2 whose leading edge precedes the first banknote P1 during double feeding is in contact with the front side of the separation nip portion N1, specifically, the circumferential surface of the brake roller 130. It will be in a state where further advancement is stopped. Further, following the second banknote, the first banknote P1 also comes into contact with the peripheral surface of the brake roller 130 and is prevented from further advancement.
On the other hand, in the present invention, the regulating member regulates the front face of the banknote bundle and prevents the progress to the separation nip portion, so that there is no room for the second sheet to precede, and the variation on the front face of the banknote bundle is eliminated. Since the front of the banknote bundle is shaped into a wedge shape most suitable for preventing double feeding, there is no room for double feeding.
Even at this stage, only the feeding roller 30 rotates idle until there is no play in the first relative rotation section 40, so that the feeding roller continues to press the front surface of the banknote bundle against the back surface of the regulating member 300. In the same manner as the above, the contact surface between the regulating member and the front face of the first banknote bundle does not generate a strong friction conveying force due to the pressing force from above, and is not pushed into the regulating member until the banknote is deformed. .

  The first engagement portion 32 of the feeding roller 30 finishes the rotational movement from the start end portion 40a to the end end portion 40b (the rear portion 52b of the first engaged portion 52) of the first relative rotation section 40, and there is no circumferential play. Then, the first engaging portion 32 comes into contact with the first engaged portion 52 of the timing clutch 50 to start normal rotation of the timing clutch (FIG. 34, step S35). FIG. 27 (b) shows a state after the first engaging portion 32 located at the starting end portion 40a moves around in the forward rotation direction and passes through the terminal end portion 40b. At this stage, the first engaging portion is already present. Since the portion 32 starts to press the first engaged portion 52, the feeding roller and the timing clutch start to rotate integrally in the forward rotation direction. Since the timing clutch idles with the feeding roller 30 until there is no play in the second relative rotation section 45, the feed roller 110 is still stopped.

  As shown in FIGS. 27 (c) and 28 (c), the second engagement portion 53, which has started normal rotation from the second start end 45a of the second relative rotation section corresponding to the first end portion 40b, When passing through the second end portion 45b of the circumferential play range of the relative rotation section, it contacts the rear portion 62b of the second engaged portion 62 of the upstream timing pulley and starts pressing it in the forward rotation direction. The side timing pulley starts normal rotation (FIG. 34, step S36). That is, the second engagement portion 53 of the timing clutch 50 that has started normal rotation from the start end portion 45a of the second relative rotation section finishes the rotational movement to the end portion 45b of the second relative rotation section, thereby eliminating circumferential play. Then, the second engaging portion 53 comes into contact with the second engaged portion 62 of the upstream timing pulley 60 and starts driving the upstream timing pulley. Therefore, at this stage, the timing belt 125 and the downstream timing pulley 120 are fed for the first time. The driving force is transmitted to the roller 110, and the feed roller starts normal rotation (FIG. 28 (a), FIG. 34, step S37).

In other words, after the feeding roller 30 starts to rotate, the feed roller starts to rotate for the first time at the timing when the circumferential play in the first relative rotation section and the circumferential play in the second relative rotation section disappear in sequence.
At this time, the regulating member 300 having the tip edge 301 in contact with the circumferential surface of the feed roller at the stage shown in FIG. The sheet passing path R to the separation nip is opened (FIG. 28 (a)). Therefore, the first banknote P1 of the front face of the banknote bundle shaped in a wedge shape with the leading edge of the first banknote as the apex is in a state of being exposed in the paper passing path R in advance, As the rollers continue to rotate forward sequentially as shown in FIGS. 28A, 29A, and 30A, only the first banknote can be separated and passed.
In FIG. 28A, when the feed roller shaft portion 101 and the feed roller 110 start normal rotation, the return lever 261 that has been biased in the return direction by the return spring 270 until then is fed to the feed roller shaft by the action of the torque limiter 265. Then, the base of the return lever slips with the sliding member 263 (feed roller shaft portion 101) at the position where the return lever is in contact with the stopper 268, and stops at that position (step S37). ).

Next, as shown in FIG. 28A, the leading edge of the first banknote P1 that has been separated and passed through the separation nip portion N1 passes through the nip portion N2 of the drawer roller pair, and as shown in FIG. When detected by the point sensor 253, the control unit 1000 stops the paper feed motor 70 (FIG. 34, steps S38 and S39). For this reason, the feeding roller 30 and the feed roller 110 are stopped, and the drawer roller pair 251a and 251b driven by the drawer conveyance motor 255 pulls the banknote P1 from the separation nip portion N1.
At this stage, as shown in FIG. 29 (a), the banknote P1 is nipped in the separation nip portion N1, and only the extra length L1 remains unpassed through the separation nip portion N1. As P1 is pulled out, the feed roller is rotated in the forward direction (FIG. 34, step S40). With the upstream timing pulley, the timing clutch, and the feeding roller stopped by the stop of the paper feed motor 70, the feed roller is further rotated with the bill P1, as shown in FIG. By continuing, the upstream timing pulley and the timing clutch sequentially resume normal rotation, and the second and the once lost by the feeding and separating operations by the driving of the feeding motor shown in FIGS. 26, 27, and 28. Each play in the first relative rotation sections 45 and 40 is sequentially recovered (FIG. 34, steps S41 and S42).

  That is, in the state shown in FIG. 29A, the first engaging portion 32 and the first engaged portion 52 stop rotating as shown in FIG. 29B, and the second engaging portion 53 is shown in FIG. The rotation is stopped as shown in c). In this state, when the feed roller continues to rotate by driving from the extra length L1 of the bill P1, the second engaged portion 62 rotates in the forward rotation direction away from the front portion 53a of the second engaging portion 53 in the stopped state. The play recovery operation that continues is started. During the play recovery operation, the drive is not transmitted to the timing clutch, so the load is almost light. Therefore, the banknote can be easily pulled out only by the pair of the drawing rollers, and the banknote is not torn or damaged.

  Since the timing clutch starts rotating when the second engaged portion 62 that has circulated in the counterclockwise direction reaches the rear portion 53b of the second engaging portion of the timing clutch that is in a stopped state and starts to drive it, As shown in FIG. 29B, the first engaged portion 52 located at a position in contact with the front portion 32a of the first engaging portion 32 starts to move away from the front portion 32a. The timing clutch stops rotating when the rear end of the bill P1 passes through the separation nip portion N1 as shown in FIG. 30 (a) during the period in which the first engaged portion 52 circulates counterclockwise. To do. FIGS. 30B and 30C show the positional relationship between the engaged portions and the engaged portions when the circumferential play of the relative rotation sections 40 and 45 is recovered by stopping the timing clutch.

As shown in FIG. 30 (a), when the bill trailing edge passes through the separation nip portion N1 due to the withdrawal of the bill by the pair of withdrawal rollers, the withdrawal is completed, and the first sheet is fed out, separated, and downstream by the bill separating / conveying device. The transfer work is completed. At this stage, the driving force in the forward rotation direction with respect to the feed roller 30 is lost, and the circumferential play in each of the relative rotation sections 40 and 45 is recovered. Therefore, the feed roller 30 and the shaft portion 101 can freely reverse. It is in a state. The brake roller 130 can be freely reversed by a one-way clutch 130a. For this reason, the force that the return spring 270 pulls the return lever in the return direction overcomes the pressure contact spring 265 pressing the return lever against the sliding member 263, and the return lever rotates in the return direction together with the shaft portion 101. Therefore, the remaining banknotes that have entered the separation nip portion N1 with the regulating member 300 interposed therebetween in FIG. 30 come out of the separation nip portion N1 together with the regulating member in the stage of FIG. 31, and are returned to the upstream side. Evacuate to a position that does not hinder the delivery of the next bill.
Since the feed roller can continuously feed the second and subsequent bills following the first sheet by continuously rotating, the control means stops the feed roller at an arbitrary sheet feed timing and returns the regulating member. By operating the mechanism 310 and reversing the feed roller, when there is a remaining banknote, the regulating member is returned to the upstream side together with the remaining banknote, and when there is no remaining banknote, only the regulating member is returned to the original position (FIG. (Refer to the banknote stacking part 5 (b)).

Even if the feed roller 110 and the shaft portion 101 are reversely rotated, the rotation angle due to the reverse rotation is slight. The timing clutch 50 and the feeding roller 30 maintain the state where the circumferential play is recovered. That is, in this example, only the upstream timing pulley 60 rotates in the reverse rotation direction by the reverse rotation of the feed roller 110 and the shaft portion 101, and the rotation angle is slight, so the circumferential play is recovered. There is almost no change in the state, and there is no influence on the next paper feeding operation.
Note that the positional relationship between the first engaging portion 32 and the first engaged portion 52 when play is recovered is merely an example, and the two portions depend on the length of the banknote extra length L1 shown in FIG. Although the positional relationship is not constant, the first and second relative rotation sections required when the paper feeding motor rotates the feeding roller in order to feed the next bill can be sufficiently secured. . That is, in the example of FIG. 30B, the first engaging portion 32 and the first engaged portion 52 are in a slightly separated positional relationship, unlike the initial state of FIG. Therefore, the initial position of the first engaging portion 32 when the feeding roller 30 starts rotating when the next banknote is fed is the position shown in the drawing, and until the first engaging portion 52 comes into contact with the rear portion 52b. The turning angle is less than 250 degrees.

At the time of FIG. 30B, the circumferential direction formed by each of the relative rotation sections 45 and 40 by the length L1 from the separation nip portion N1 to the rear end of the banknote when the paper feed motor 70 is stopped in FIG. The “play” has recovered, and this “play” can be used to create a delay in the feed roller drive timing with respect to the feed roller drive timing. It becomes possible.
Note that the run-out sensor is omitted, the time required for the fed banknotes to reach the drawing roller pair after being separated by the separating unit is calculated in advance, and the feeding sensor is rotated by an amount corresponding to this time. You may comprise so that it may stop after.
Since the relationship between the extra length L1, the “play” of the relative rotation section, the position of the next point sensor 253, and the like is true, redundant description is omitted.

[Description of Operation of Double Feed Bill Return Mechanism 260]
The return lever 261 is biased in the return direction by a return spring 270 when the feed roller 110 shown in FIGS. 26 and 27 is in a stopped state.
Next, the return lever rotates together with the shaft portion 101 by the action of the torque limiter 265 at the start of forward rotation of the feed roller 110 shown in FIG. After reaching the position of contact with H.268, the state of being stopped while slipping with the feed roller shaft 101 is maintained by the action of the torque limiter. Even in the state of FIG. 29, the return lever is kept in contact with the stopper 268 during the forward rotation of the feed roller.
Next, as shown in FIG. 30, when the rear end portion of the first banknote P1 passes through the separation nip portion N1, the feed roller can be reversed with a light load by the action of the drive transmission delay mechanism D. Thus, the return lever is rotated in the return direction by the force of the return spring, and the feed roller is rotated in the return direction via the feed roller shaft portion 101, thereby returning the banknote bundle having the tip remaining in the separation portion. It can be moved in the direction. At this time, the regulating member 300 also returns to the upstream side together with the banknote bundle. Even after the banknote is moved in the return direction by the return spring, the return lever is kept pulled toward the banknote slot.
Unlike the second aspect of the present invention, since the feed roller can be reversed by the force of the return spring 270 without using the paper feed motor 70, the control of the paper feed motor can be simplified.

In the case where the regulating member 300 does not exist, in FIG. 29 and FIG. 30, when the feed roller rotates forward by drawing the banknote, it is likely that a part of the remaining banknote jumps out to the separation nip portion. While the banknote bundle is prevented from jumping out to the separating part side, the feed roller can be reversed at a light load by the action of the drive transmission delay mechanism D, and the remaining banknote is caused by the feed roller reverse action by the return lever and the return spring. Can be efficiently returned to the retracted position.
That is, when the first banknote P1 drawn by the drawing roller pair 251a and 251b passes through the separation nip portion N1 after the feed roller is stopped (FIG. 30), the feed roller is released from the external force. In other words, the drive from the paper feed motor 70 is stopped, and even if the feed roller is reversely rotated, no load is applied by the drive transmission delay mechanism D, and the brake roller 130 is returned in the return direction by the one-way clutch 130a disposed on its shaft portion. Therefore, the feed roller shaft portion can be rotated with no load or with a light load, and the return lever is rotated in the return direction by the force of the return spring 270 (FIG. 31). The feed roller and the brake roller are also rotated in the return direction by the angle corresponding to the return lever, and the remaining banknote can be returned to the insertion slot side. Since the spring force of the pressure contact spring of the torque limiter can be small, the cost can be reduced.

Such actions and effects are due to the fact that the idle rotation section by the relative rotation sections 40 and 45 is present, so that the load on the feed roller can be reduced after the first banknote leaves the feed roller. It is possible to rotate the return lever in the return direction with a small force.
If there is no relative rotation section, a predetermined load or more is required to rotate the return lever in the return direction. Therefore, it is necessary to increase the force of the return spring to an extent that can resist the load. In this case, it is necessary to strengthen the pressure contact spring 267 constituting the torque limiter, and as a result, the forward driving force of the feed roller must be increased. That is, when there is no relative rotation section, the return lever and the feed roller cannot be rotated in the return direction.

[Summary of Effects and Effects of First Embodiment of Third Invention]
In the banknote separating / conveying device 1 according to the third aspect of the present invention, after the feeding operation by the feeding roller 30 is started, in order to start the rotation of the feed roller 110 with a predetermined time difference, a first relative relationship is provided between the feeding roller and the timing clutch. A rotation section 40 is provided, and a second relative rotation section 45 is provided between the timing clutch and the upstream timing pulley. As a result, even when the feeding roller is rotated by rotating the sheet feeding motor, the feed roller is not transmitted to the feed roller and is stopped until there is no “play” in the circumferential direction corresponding to the total of the relative rotation sections. When the feed roller rotates during the stop period of the feed roller, the bill bundle P is fed out and pressed against the regulating member 300 to displace the movable part 300b of the regulating member toward the separating part. When the leading edge 301 comes into contact with the peripheral surface of the feed roller, the restricting member stops displacement. In this state, the front surface of the banknote bundle is formed between the bottom plate (conveying surface) 10a of the banknote stacking portion 10 and the movable portion 300b of the restricting member. It is shaped into a wedge shape by being sandwiched between the sharp-angled gaps.
When the play roller, timing clutch, and timing pulley continue to rotate in the forward direction with the bill tip in contact with the brake roller, the “roll” formed by each relative rotation section disappears, and the feed roller rotates together with the feed roller. The leading edge 301 of the restricting member moves away from the peripheral surface of the feed roller and moves toward the peripheral surface of the brake roller 130. For this reason, only one banknote enters the banknote entry path R and is fed to the separation nip.

When the leading end of the separated bill P1 reaches the next point sensor 253 and is detected, the control unit 1000 stops the paper feed motor 70 (FIG. 29).
The bill P1 is pulled out by a pair of pulling rollers 251a and 251b driven by a pulling and conveying motor 255 and is continuously conveyed. Each of the positions of the banknotes nipped in the separation nip portion N1 and the extra length L1 up to the rear end of the banknotes is lost due to the feed roller being rotated around the banknotes until it is completely pulled out by the drawing rollers. The “play” of the relative rotation sections 40 and 45 is restored (FIG. 30).
When the first banknote P1 is drawn, separated, and drawn out, “play” is restored and the circumferential positional relationship of the feeding roller, timing clutch, and timing pulley returns to the initial state. The same operation can be repeated with simple control even when starting.
By continuing to drive the paper feeding motor 70 in the state shown in FIG. 30 immediately after the trailing edge of the first banknote passes the separation nip portion N1, and continuously rotating the feeding roller 30 and the feed roller 110, two sheets are obtained. The following banknotes can be continuously fed one by one with the eyes, the third, and so on. When the trailing edge of the succeeding banknote during continuous feeding passes through the separation nip portion, the feeding roller stops, and the feed roller shaft is rotated together with the return lever 261 by the return spring 270 in the return direction.

According to the banknote separating and conveying apparatus 1 of the present invention, the front surface of the banknote bundle is brought into contact with the regulating member 300 even if the tips of the banknotes constituting the banknote bundle P are in an irregular state before the start of feeding. In order to separate the banknotes after aligning the wedge shape suitable for separation one by one, the second banknote is highly reliable by preventing double feeding through the separation nip part ahead of the first sheet, Stable banknote separation is possible.
Further, this series of feeding and separating operations is realized only by the purely mechanical configuration of the drive transmission delay mechanism D, and does not require complicated control to switch the forward / reverse driving of the motor at fine timing. As a result, high-speed processing and high durability can be achieved. Moreover, the drive transmission delay mechanism D has a simple and simple structure and can be manufactured at low cost.

The return lever 261 rotates in the forward direction following the feed roller shaft 101 by the action of the torque limiter 265 during the period in which the feed roller 110 is driven forward by the paper feed motor, but is in contact with the stopper 268. While stopping normal rotation at the time, slip with the feed roller shaft is started. After that, the feed roller, which is the drive source of the return lever, continues to rotate, but the drive of the return lever is interrupted by the torque limiter and stops at the stopper contact position.
After the first banknote P1 passes through the separation nip portion N1, the feed roller is released from the external force. In other words, the drive from the paper feed motor 70 is also stopped, and the load at the time of reverse rotation is reduced by the presence of the relative rotation section, and the brake roller 130 can be rotated in the return direction b by the one-way clutch 130a. The return lever is rotated in the return direction by the force of the return spring 270. The feed roller and the brake roller can be reversed to return the remaining banknotes by the angle corresponding to the return lever returning. That is, the second engaged portion 62 constituting the relative rotation section 45 is free to rotate in the return direction b with respect to the second engaging portion 53 in a stopped state as shown in FIG. The first engaged portion 52 constituting the relative rotation section 40 is free to rotate in the return direction b with respect to the first engaging portion 32 in a stopped state as shown in FIG. For this reason, the load when the feed roller is reversely rotated by the return spring 270 via the return lever is extremely small.
In addition, since the relative rotation amount of the second engaged portion 62 in the return direction b at this time is small, the “play” once recovered is not affected.
As described above, it is possible to continuously feed the subsequent banknotes one by one from the bottom side by continuously rotating the feed roller even after the first banknote (preceding banknote) passes through the separation nip portion. It is.

<C-2: Second Embodiment>
The second embodiment of the second invention shown in FIGS. 20 to 22 can also be applied to the third invention.
That is, in the second embodiment of the second invention shown in FIGS. 20 to 22, the timing clutch 50 is omitted and the feeding roller 30 and the upstream timing pulley (upstream transmission member) 60 are arranged on the feeding roller shaft 21. The arrangement is characterized in that they are arranged so as to be rotatable relative to each other, and the feed roller and the upstream timing pulley are arranged adjacent to each other via a relative rotation section 80. Can be applied to. Other configurations, operations, and effects are the same as those of the first embodiment of the third aspect of the present invention, and thus redundant description is omitted.

<C-3: Third Embodiment>
The third embodiment of the second invention shown in FIG. 23 can also be applied to the third invention.
That is, the third embodiment of the second invention shown in FIG. 23 is characterized in that the relay transmission unit 200 is configured by a plurality of gears. This configuration is the configuration of the feeding unit 20 of the third invention. Can be applied to. Other configurations, operations, and effects are the same as those of the first embodiment of the third invention, and thus redundant description is omitted.

<Application example of the banknote separating and conveying apparatus of the third aspect of the present invention>
FIG. 35 is a cross-sectional view showing a schematic configuration of a banknote discriminator as an example of a banknote handling apparatus to which the banknote separating and conveying apparatus 1 according to each embodiment of the third invention can be applied.
In addition, this banknote handling apparatus is applicable also to the banknote separation | separation conveyance apparatus which concerns on the 1st and 2nd this invention.
A bill discriminator (paper discriminator) 400 is sequentially arranged along a deposit tray 403 provided in a deposit port 402 provided on the front upper portion of the housing 401 and a conveyance path 405 provided in the deposit port 402. The banknote separating and conveying apparatus 1 and the discrimination unit 410 that determines the authenticity of the banknotes, and the banknotes that are determined to be authentic by the discrimination unit are sorted and transported to the authentic banknote tray 420 provided in the lower front of the housing, A sorting and conveying unit 415 that sorts and conveys banknotes determined to be banknotes to the fake banknote tray 421 and a control unit 425 are provided.

Unlike the banknote handling apparatus that provides goods and services such as a banknote deposit machine, banknote counter, various vending machines, and money changers, the banknote discriminator 400 is only intended to identify the authenticity of banknotes. It is a small and lightweight device, for example, a device that is installed in a foreign currency exchange window of a bank or a foreign currency exchange area of an airport and performs identification processing simply and quickly. The banknote discriminator 400 sets a predetermined number, for example, 50 banknote bundles on the deposit tray 403, and automatically feeds and separates them one by one by the banknote separating and conveying device 1, and then CIS (Contact Image Sensor). ) And a bill suspected of being counterfeited. Next, the sorting and conveying unit 415 sorts and conveys the genuine banknote and the false banknote to the genuine banknote tray 420 and the false banknote tray 421, respectively.
Even when the tips of the banknotes constituting the banknote bundle set in the deposit tray 403 are not aligned, the banknote separating and conveying device 1 causes the regulation member 300 to abut the front end of the banknote bundle fed out by the feeding section 20. Since the separation operation is performed after the front surface of the banknote bundle is aligned in a wedge shape suitable for paper feeding, it is possible to prevent the type of double feeding in which the second banknote is sent before the first banknote.

In addition, due to the action of the double-fed banknote return mechanism 260 and the regulating member 300, the banknote remaining in the separation section after the first banknote has been fed out and separated may become an obstacle to the feeding and separation of the next banknote. It is possible to retract to a position where there is no.
Note that the banknote separating and conveying apparatus of the present invention is not limited to a banknote discriminator, but also other banknote handling apparatuses that provide articles and services such as banknote depositing machines, banknote counting machines, various vending machines, and money changers. Can be applied.

<Summary of Configuration, Action, and Effect of Third Invention>
1. In the sheet separating and conveying apparatus according to the third aspect of the present invention, the feeding unit 20 that feeds the sheets from the sheet bundle P one by one by the feeding roller 30 and the sheets fed from the feeding unit 20 are in a double feed state. A separating unit 100 that passes only the first sheet P1 that contacts the feeding roller and sends it downstream, and prevents the second and subsequent sheets from advancing, and the feeding unit 20 and the separating unit 100; A regulating member 300 that is disposed between and restricts the position of the front end face of the sheet bundle in the feeding portion when it is in the initial position and is pressed and displaced when the position of the front end face of the sheet bundle is displaced in the transport direction. , Relay transmission for transmitting driving force between the drawer conveyance unit (paper sheet drawing means) 250 for drawing out and conveying the first sheet P1 partially remaining in the separation unit, and the feeding unit and the separation unit Part 200 and at least the first sheet (leading sheet) When there is a paper sheet (subsequent paper sheet) that operates after passing through the separation unit and remains in the separation unit, a regulating member (residual paper sheet) returning mechanism 310 that returns the residual paper sheet to the upstream side together with the regulating member. Then, after the preceding paper sheet passes through the separation unit, the subsequent paper sheet (bundle) remaining in the separation unit is returned to the upstream side (returned to a retracted position that does not interfere with the next separation operation). And control means 1000 for controlling various objects to be controlled. Further, the feeding section includes a feeding roller shaft 21 orthogonal to the paper sheet conveying direction, a feeding roller 30 that rotates around the axis of the feeding roller shaft, and that is sequentially arranged along the axial direction, and an upstream transmission member 60. In addition, a feed motor 70 that forwardly drives the feeding roller in the conveying direction, and at least one relative rotation section 80 (40, 45) between the feeding roller and the upstream transmission member is provided to drive in both forward and reverse directions. A drive transmission delay mechanism D that delays (intermitts) the transmission of force. The separation unit 100 forms a separation nip portion N1 between the feed roller 110 that is in contact with and transports the preceding paper sheet surface fed by the feeding roller when forwardly rotated, and the feed roller. And a friction separating member (brake roller) 130 for preventing the forward movement. The relay transmission unit 200 is coaxially disposed adjacent to the feed roller and rotates integrally with the downstream transmission member 120, and the relay transmission member 125 relays driving force transmission between the upstream transmission member and the downstream transmission member 120. And comprising. The multi-feed paper leaf return mechanism 260 is disposed between a return lever 261 that is rotatably supported by the shaft portion of the feed roller, and between the shaft portion and the return lever of the feed roller, and the shaft portion and the return lever. A torque limiter 265 that integrally rotates the shaft portion and the return lever in the forward rotation direction, and an elastic biasing means 270 that biases the return lever in the return direction as long as the torque difference does not exceed a certain value. Is provided. The drawer transport unit 250 is disposed at a downstream position where the distance from the separation nip portion is shorter than the length of the paper sheet in the transport direction, and forms a drawer nip portion (drawer transport members) 251a and 251b, and the drawer A drawer conveyance motor 255 that rotates a feed roller not driven by the paper feed motor in the conveyance direction by driving one of the conveyance members. The drive transmission delay mechanism D allows the circumferential positional relationship between the feeding roller and the upstream transmission member to be bi-directionally rotatable between the initial positional relationship and the final positional relationship, and the feeding roller relative to the upstream transmission member. Until the positional relationship reaches the final positional relationship from the initial positional relationship, the driving force is not transmitted to the upstream transmission member 60, and the driving force is transmitted after the final positional relationship is reached. The control means stops the driving of the feeding roller by the paper feeding motor to the feeding roller at an appropriate timing when the preceding paper sheet fed by the feeding roller reaches the drawing nip portion when the feed roller rotates forward, and uses the drawing conveyance member. By carrying out the drawing and conveying of the paper, the feed roller, the relay transmission member 125, and the upstream transmission member are rotated forward by using the conveyance force of the preceding paper, and the feed roller is rotated in the conveyance direction by the paper drawing means. Let

Relative rotation within the range of the relative rotation section until the trailing edge of the paper sheet passes through the separation nip portion with respect to the feeding roller in which the upstream transmission member that rotates normally is stopped, and stops after passing through the separation nip portion, At the end of the relative rotation of the upstream transmission member, the feeding roller and the upstream transmission member return to the initial positional relationship.
The return lever 261 is rotated integrally with the shaft portion of the feed roller by the action of the torque limiter 265 at the start of forward rotation of the feed roller, and after reaching the stop position rotated by a predetermined angle in the forward rotation direction against the return spring. The stop state is maintained while slipping with the shaft portion. At this time, the return lever slips with respect to the feed roller shaft portion by the action of the torque limiter and rotates idle.

When the rear end portion of the first sheet (leading sheet) passes through the separation nip portion N1, the feed roller can be reversed with a light load, the return lever is rotated in the return direction by the force of the return spring, and the feed roller By rotating the feed roller in the returning direction via the shaft portion, when the succeeding paper sheet remains in the separating portion, the paper sheet is moved in the returning direction. Since the amount of reverse rotation at this time is small, the “play” recovery state of each member constituting the feeding portion 20 is maintained.
The feed roller and feed roller are not driven individually by a plurality of motors, but the rotation of the feed roller is not started until the feed roller rotates by a predetermined angle by using a single motor while using a single motor. Accordingly, it is possible to prevent the second and subsequent sheets from passing through the separation nip portion prior to the first sheet.

According to the present invention, the operation of separating the multi-fed paper sheets and passing only the first sheet downstream is completed without delaying the separation operation, complicating the control, and increasing the number of detection sensors. At that time, the remaining paper sheets remaining in the separation unit can be transported back to the upstream side so as not to become an obstacle in the next separation operation. This returning operation can be performed every time one sheet is fed, or the remaining paper sheets can be returned after a plurality of sheets are continuously fed. Furthermore, it is also possible to return only the restricting member after all the paper sheets have been fed and the residual use is present.
In the present invention, the return lever can be returned with a small return spring force after the feed roller is stopped because there is an idling section corresponding to the total circumferential length of the relative rotation sections formed by the drive transmission delay mechanism D. In other words, the existence of the relative rotation section can form a period in which the drive of the feed roller and the paper feed motor is cut off, so that a simple return lever structure with a weak return spring force and a torque limiter structure with a weak spring force are used. Thus, the multi-feed paper return mechanism 260 can be constructed at a low cost.
As in the case of the second aspect of the present invention, the regulating member 300 is positioned on the front side of the sheet bundle when the feeding roller is stopped, closes the entry path to the separation unit, and is pressed in the forward direction by the front side of the sheet bundle. Sometimes the leading edge is brought into contact with the outer peripheral surface of the feed roller in a stopped state to close the entrance path, and the front surface of the sheet bundle is shaped into a wedge shape with the leading edge of the first sheet of paper as the apex. When the paper rolls forward, the leading edge is retracted to a position where the entry path is opened, and the first sheet is allowed to enter the separation nip portion. For this reason, it is possible to further reduce the room for the second paper sheet (following paper sheet) to enter the separation nip portion before the first sheet (preceding paper sheet). Then, after the play in the circumferential direction of the relative rotation section is recovered by the action of the drive transmission delay mechanism D, the sheet bundle remaining in the separation unit is removed by the action of the multi-feed sheet return mechanism 260 without reversing the sheet feeding motor. It can be returned to the initial position. At this time, the restricting member also returns to the initial position, so that it is possible to smoothly shift to the next sheet feeding.

2. In another paper sheet separating and conveying apparatus according to the third aspect of the present invention, the friction separating member is a brake roller 130 supported by a brake roller shaft, and the brake roller is disposed between the brake roller shaft. The one-way clutch 130a is configured not to rotate in the forward rotation direction but to rotate in the paper sheet return direction.
The brake roller 130 can be rotated with a light load in the return direction by the one-way clutch 130a. Accordingly, when the feed roller shaft portion 101 is lightly loaded by the action of the drive transmission delay mechanism D, the remaining paper sheet can be returned by rotating the feed roller and the brake roller in the return direction by a small force of the return spring 270.
Since the operation and effect when the restricting member 300 is added to the above-described configuration, particularly the specific operation and effect obtained by the cooperation of the drive transmission delay mechanism D and the restricting member are the same as described above, redundant description is provided. Is omitted.

3. In another sheet separating / conveying apparatus according to the third aspect of the present invention, the relative rotation section 80 is provided in the engaging portion 33 (FIG. 20) provided in the feeding roller and in the upstream transmission member 60 and in the feeding roller. In the initial state in which the feeding roller and the upstream transmission member are stopped, formed between the engaging portion and the engaged portion 62 that engages and disengages in the process of relative rotation in the forward and reverse directions. The engaging portion 33 is located at the front side in the forward direction of the engaged portion, and is in the initial state when the feeding roller rotates forward and feeds the first sheet toward the separation nip portion N1. Is rotated in a direction away from the front part of the engaged part 62 in the stopped state, and the engaging part circulates and contacts the rear part of the engaged part, and then the driving force is transmitted to the engaged part. Then, the upstream transmission member starts to rotate forward, and the driving force in the transport direction from the feeding roller is transmitted to the upstream transmission member. Driven to normally rotate the feed roller via the relay transmission member by. Further, the control means 1000 stops the driving of the feeding roller by the paper feeding motor after the first sheet fed by the feeding roller reaches the drawing nip portion of the drawing conveying member, and the paper by the drawing conveying member. By carrying out the leaf conveyance, the feed roller, the relay transmission member 125, and the upstream transmission member are rotated forward by using the conveyance force due to the extra length of the paper sheet remaining upstream from the separation nip portion. When the engaged portion of the upstream transmission member comes into contact with or engages with the engaging portion of the feeding roller in the stopped state, the upstream transmission member and the feeding roller return to the initial positional relationship when stopped. Is completed.

When the drive transmission delay mechanism D is composed of two parts, that is, a feeding roller and an upstream transmission member, the drive transmission delay mechanism D is relatively between the engaging portion 33 provided on the feeding roller and the engaged portion 62 provided on the upstream transmission member. A rotation section 80 is formed. In order to satisfy the request for extending the relative rotation section 80, it is effective to increase the number of relative rotation sections by disposing a clutch member between the feeding roller and the upstream transmission member.
Since the operation and effect when the restricting member 300 is added to the above-described configuration, particularly the specific operation and effect obtained by the cooperation of the drive transmission delay mechanism D and the restricting member are the same as described above, redundant description is provided. Is omitted.

4). In another sheet separating / conveying device according to the third aspect of the present invention, the clutch member is located at a portion of the feeding roller shaft located between the feeding roller and the upstream transmission member with respect to the feeding roller and the upstream transmission member. It is pivotally supported so as to be relatively rotatable (and coaxial).
In the present invention, the relative rotation section 80 includes the first relative rotation section 40 formed between the feeding roller and the clutch member, and the second relative rotation section 45 formed between the clutch member and the upstream transmission member. And is composed of.
The length of the relative rotation section 80 can be arbitrarily extended by arranging a clutch member between the feeding roller and the upstream transmission member to increase the number of relative rotation sections.
Since the operation and effect when the restricting member 300 is added to the above-described configuration, particularly the specific operation and effect obtained by the cooperation of the drive transmission delay mechanism D and the restricting member are the same as described above, redundant description is provided. Is omitted.

5. In another paper sheet separating and conveying apparatus according to the third aspect of the present invention, the first relative rotation section 40 is provided with respect to the first engaging portion 32 provided on the feeding roller 30 and the feeding roller provided on the clutch member 50. The second relative rotation section 45 is formed between the first engaged portion 52 that engages and disengages (disengages) in the process of relative rotation in the forward and reverse directions. A second engagement portion 53 provided on the member, and a second engagement portion provided on the upstream transmission member 60 and engaged and disengaged from the second engagement portion in the process of relative rotation in the forward and reverse directions with respect to the clutch member. In an initial state formed between the engaging portion 62 and the feeding roller, the clutch member, and the upstream transmission member are stopped, the first engaging portion is located in the forward direction of the first engaged portion. The second engaging portion is positioned on the front side in the forward direction of the second engaged portion, and the feeding roller is rotated forward to When the paper sheet of the eye is sent out toward the separation nip portion, the first engaging portion that was in the initial state rotates and moves away from the front portion of the first engaged portion that is in the stopped state. After the joint portion circulates and contacts the rear portion of the first engaged portion, the driving force is transmitted to the first engaged portion to start the forward rotation of the clutch member, and the second engagement at the initial position. When the joint part rotates forward, it rotates in a direction away from the front part of the second engaged part, and the second engaging part turns around and comes into contact with the rear part of the second engaged part. 2 The driving force is transmitted to the engaged portion to start rotation of the upstream transmission member in the conveyance direction, and the relay transmission member is transmitted by transmitting the driving force in the forward rotation direction from the clutch member to the upstream transmission member. Through which the feed roller is driven forward. The control means 1000 stops the driving of the feeding roller by the paper feed motor at the timing when the first sheet fed by the feeding roller reaches the drawing nip portion of the drawing conveying member, and the sheet feeding by the drawing conveying member. The feed roller, the relay transmission member, and the upstream transmission member are rotated forward by using the conveyance force due to the remaining length of the paper sheet remaining upstream from the separation nip portion by pulling and conveying the upstream side. After the second engaged portion of the transmission member rotates until it comes into contact with the second engaged portion of the clutch member that is in a stopped state, transmission of driving is started to the second engaged portion and the first engaged portion, When the first engaged portion rotates to the position where the first engaged portion contacts or approaches the first engaging portion of the feeding roller and stops, the return to the initial positional relationship between the clutch member and the feeding roller is completed.

When the drive transmission delay mechanism D is composed of three parts, that is, the feeding roller 30, the clutch member 50, and the upstream transmission member 60, the first engaging portion 33 provided on the feeding roller and the first engaged portion provided on the clutch member. A first relative rotation section 40 is formed between the joint portion 51 and a second portion between the second engagement portion 53 provided on the clutch member and the second engaged portion 62 provided on the upstream transmission member. By forming the relative rotation section 45, the total circumferential play length of the relative rotation section 80 can be extended.
Since the operation and effect when the restricting member 300 is added to the above-described configuration, particularly the specific operation and effect obtained by the cooperation of the drive transmission delay mechanism D and the restricting member are the same as described above, redundant description is provided. Is omitted.

6). Another sheet handling apparatus according to the third aspect of the present invention includes any one of the first to fifth sheet separating and conveying apparatuses.
This paper sheet handling apparatus 400 is simple and inexpensive by being applied to a paper sheet handling apparatus such as a paper sheet identification machine, a paper sheet depositing machine, a paper sheet counting machine, various vending machines, and a money changer. However, it is possible to effectively prevent double feeding that occurs when the second sheet is fed to the separation unit prior to the first sheet.

DESCRIPTION OF SYMBOLS 1 ... Banknote (paper sheet) separation conveyance apparatus, 10 ... Banknote (paper sheet) stacking part, 10a ... Conveying surface, 15 ... Paper feeding part, 20 ... Feeding part, 21 ... Feeding roller axis, 22 ... Parallel pin, D ... Drive transmission delay mechanism, 30 ... feed roller, 30a ... divided piece, 30b ... divided piece, 31 ... feed roller main body, 31A ... one surface of the feed roller main body, 32 ... first engaging portion, 32a ... front portion, 32b ... rear portion , 33 ... engaging part, 35 ... shaft part, 40 ... first relative rotation section, 40a ... start end part, 40b ... end part, 45 ... second relative rotation section, 45a ... start end part, 45b ... end part, 50 ... Timing clutch (clutch member), 50A ... one side, 51 ... timing clutch body, 51B ... opposite surface, 52 ... first engaged portion, 52a ... front portion, 52b ... rear portion, 53 ... second engaging portion, 53a ... Front part, 53b ... Rear part, 60 ... Upstream side Ming pulley (upstream transmission member), 61 ... upstream timing pulley body, 61B ... opposite surface, 62 ... second engaged portion, 62a ... front, 62b ... rear, 70 ... feed motor, 70a ... output gear, DESCRIPTION OF SYMBOLS 71 ... Drive gear, 75 ... Start sensor, 80 ... Relative rotation area, 100 ... Separation part, 101 ... Feed roller shaft, 102 ... Parallel pin, 110 ... Feed roller, 110a, 110b ... Split piece, 120 ... Downstream timing pulley (Downstream transmission member), 125 ... timing belt (relay transmission member), 130 ... brake roller, 130a ... one-way clutch, 150 ... upstream transmission gear, 152 ... engaged portion, 155 ... downstream transmission gear, 160 ... Intermediate gear 200 ... Relay transmission unit (relay transmission mechanism), 250 ... Drawer conveyance unit, 251a, 251b ... Drawer roller (drawer conveyance) Material), 253 ... Next point sensor, 255 ... Drawer transport motor, 260 ... Double feed bill return mechanism, 261 ... Return lever, 263 ... Sliding member, 265 ... Torque limiter, 266 ... Washer, 267 ... Pressure spring, 268 ... Stopper, 270 ... Return spring, 300 ... Restriction member, 300a ... Upper end (fixed part), 300b ... Movable part (operating piece), 301 ... Lower end edge, 305 ... Fixed support part, 306 ... Exterior body, 400 ... Banknote (Paper) Discriminator (Paper Handling Device) 401 ... Case, 402 ... Deposit Port, 403 ... Deposit Tray, 410 ... Differentiation Unit, 415 ... Different Conveying Unit, 420 ... Authentic Bill Tray, 421 ... Fake Bill Tray 1000. Control means.

Claims (14)

A feeding unit that feeds out a paper sheet from a bundle of paper sheets by a feeding roller, and when the paper sheet fed from the feeding unit is in a double feeding state, only the first paper sheet is passed and sent downstream. The separation unit that prevents the second and subsequent sheets from advancing, and the front position of the sheet bundle in the feeding unit when the sheet is in the initial position, are pressed and displaced when the sheet bundle is displaced in the transport direction. A regulating member, a relay transmission unit for transmitting a driving force between the feeding unit and the separation unit, and an operation after the at least first sheet passes through the separation unit to remain in the separation unit When there is a paper sheet, a paper sheet separating and conveying device comprising a control member returning mechanism and a control member returning mechanism for returning the residual paper sheet to the upstream side together with the control member,
The feeding unit includes the feeding roller that feeds by rotating forward in contact with the first sheet of the sheet bundle, and a paper feeding motor that drives the feeding roller,
The separation unit is driven by the sheet feeding motor via the relay transmission unit, and in contact with the first paper sheet surface fed by the feeding roller when forwardly rotated, feed roller, A friction separation member that forms a separation nip portion with the feed roller and prevents the advance of the second and subsequent sheets, and
The restricting member is positioned on the front side of the sheet bundle when the feeding roller is stopped, closes the entry path to the separation unit, and stops the leading edge when pressed in the forward direction by the front surface of the sheet bundle. The front surface of the sheet bundle is shaped into a wedge shape with the leading edge of the first sheet of paper as the apex while closing the approach path by contacting the outer peripheral surface of the feed roller, and the feed roller When forward rotation, the leading edge is retracted to a position where the entry path is opened, and the first sheet and the subsequent sheets sequentially enter and pass through the separation nip portion one by one. Allow,
The paper sheet separating and conveying apparatus, wherein the control means operates the regulating member return mechanism after at least the trailing edge of the first paper sheet has passed the separation nip portion.   The control means returns the restriction member to the upstream side by operating the restriction member return mechanism after all the paper sheets in the paper sheet bundle have passed through the separation nip portion. The paper sheet separating and conveying apparatus according to 1.   3. The paper sheet according to claim 1, wherein the regulating member is an elastic sheet, an elastic film, or a thin plate that can be freely deformed and returned to its original shape between the initial position and the displaced position. Separation transport device. A paper sheet separating and conveying method by the paper sheet separating and conveying apparatus according to claim 1, 2, or 3,
A step of displacing the regulating member toward the separating portion while preventing the sheet bundle from entering the entry path when the sheet bundle is advanced by the feeding roller;
A step of shaping the front surface of the sheet bundle into a wedge shape with the tip edge of the first sheet of paper as the apex by the displaced restricting member being blocked by the separation unit while closing the entry path. When,
The regulating member opening the entry path when the separating unit starts separating operation; and
When at least the first sheet passes through the separation nip portion, the regulating member returning mechanism is operated to return the regulating member to the upstream side together with the remaining sheet when there is a remaining sheet. Steps,
A paper sheet separating and conveying method using a paper sheet separating and conveying apparatus. The paper sheet separating and conveying device according to claim 1, 2, or 3, further comprising a drawer conveying unit that draws and conveys the first sheet of paper that remains in the separating unit.
The feeding section includes a feeding roller shaft, the feeding roller that rotates around the shaft of the feeding roller shaft, and is sequentially arranged along the axial direction, the upstream transmission member, the paper feeding motor, and the feeding roller. And a drive transmission delay mechanism that delays transmission of driving force in both forward and reverse directions by providing at least one relative rotation section between the upstream transmission member and the upstream transmission member,
The relay transmission unit is disposed adjacent to and coaxially with the feed roller and rotates integrally therewith, and the relay transmission member relays driving force transmission between the upstream transmission member and the downstream transmission member. And comprising
The drawer conveyance unit includes a drawer conveyance member that is disposed at a downstream position where the distance from the separation nip portion is shorter than the length of the paper sheet in the conveyance direction to form the extraction nip portion, and a drawer conveyance that drives the drawer conveyance member A motor,
The drive transmission delay mechanism is capable of relatively rotating the circumferential positional relationship between the feeding roller and the upstream transmission member bi-directionally between an initial positional relationship and an end positional relationship, and with respect to the upstream transmission member A configuration in which the driving force is not transmitted to the upstream transmission member until the positional relationship of the feeding roller reaches the final positional relationship from the initial positional relationship, and the driving force is transmitted after the final positional relationship is reached. With
The control means supplies the feeding roller to the feeding roller at an appropriate timing when the first sheet fed by the feeding roller reaches the drawing nip when the feed roller rotates forward. The feed roller, the relay transmission member, and the upstream transmission member using the conveyance force of the first sheet. Forward
The upstream transmission member that rotates normally rotates relative to the feeding roller in a stopped state within the range of the relative rotation section until the rear end of the paper sheet passes through the separation nip portion, and the upstream side When the relative rotation of the transmission member ends, the feeding roller and the upstream transmission member return to the initial positional relationship,
The paper sheet separating and conveying apparatus, wherein the control means operates the regulating member return mechanism after at least the trailing edge of the first paper sheet has passed the separation nip portion. The relative rotation section is engaged with the engagement portion provided in the feeding roller and the engagement portion in the process of being provided in the upstream transmission member and relatively rotating in the forward / reverse direction with respect to the feeding roller. Formed between the engaged part and
In the initial state in which the feeding roller and the upstream transmission member are stopped, the engaging portion is located on the front side in the forward rotation direction of the engaged portion,
When the feeding roller is rotated forward and the first sheet is fed toward the separation nip portion, the engaging portion that is in an initial state is separated from the front portion of the engaged portion in a stopped state. After the engaging part has circulated and contacted the rear part of the engaged part, a driving force is transmitted to the engaged part to start the forward transmission of the upstream transmission member. Drive the feed roller forward through the relay transmission member,
The control unit stops driving of the feeding roller by the paper feeding motor after the first sheet fed by the feeding roller reaches the drawing nip portion of the drawing conveying member, and also performs the drawing conveyance. By carrying the paper sheet by the member, the feed roller, the relay transmission member, the above-described conveyance force due to the extra length of the first paper sheet left upstream from the separation nip portion, When the upstream transmission member is rotated forward and the engaged portion of the upstream transmission member comes into contact with or closes to the engaging portion of the feeding roller in the stopped state, the upstream side is rotated. 6. The paper sheet separating and conveying apparatus according to claim 5, wherein the return of the transmission member and the feeding roller to the initial positional relationship is completed. A clutch member is pivotally supported so as to be relatively rotatable with respect to the feeding roller and the upstream transmission member at a portion of the feeding roller shaft located between the feeding roller and the upstream transmission member,
The relative rotation section includes a first relative rotation section formed between the feeding roller and the clutch member, a second relative rotation section formed between the clutch member and the upstream transmission member, The paper sheet separating and conveying apparatus according to claim 5, wherein the paper sheet separating and conveying apparatus is configured as follows. The first relative rotation section includes a first engagement portion provided on the feeding roller and a first engagement portion in a process of being provided on the clutch member and relatively rotating in the forward and reverse directions with respect to the feeding roller. Is formed between the first engaged portion that engages with or disengages from the first engaged portion,
The second relative rotation section includes the second engagement portion provided in the clutch member and the second engagement portion in a process of being provided in the upstream transmission member and relatively rotating in the forward and reverse directions with respect to the clutch member. Formed between a second engaged portion that engages or disengages with the joint portion;
In an initial state in which the feeding roller, the clutch member, and the upstream transmission member are stopped, the first engagement portion is located on the front side in the forward rotation direction of the first engaged portion, and the second engagement portion. The joint portion is located on the front side in the forward rotation direction of the second engaged portion,
Before the first engaged portion in which the first engaging portion in the initial state is stopped when the feeding roller is rotated forward and the first sheet is fed toward the separation nip portion. The first engaging portion circulates and abuts against the rear portion of the first engaged portion to transmit a driving force to the first engaged portion, and Start the forward rotation of the clutch member,
When the second engagement portion in the initial position rotates forward, the second engagement portion rotates in a direction away from the front portion of the second engagement portion, and the second engagement portion circulates to form the second engagement portion. After contacting the rear part of the joint part, the driving force is transmitted to the second engaged part to start the upstream transmission member to rotate in the transport direction, and the driving force in the forward direction from the clutch member Is transmitted to the upstream transmission member to drive the feed roller forward via the relay transmission member,
The control means stops the driving of the feeding roller by the paper feeding motor at a timing when the first sheet fed out by the feeding roller reaches a drawing nip portion of the drawing conveying member, and By carrying out the drawing and conveying of the paper sheet by the conveying member, the feed roller, the relay transmission member, and the upstream side are utilized by utilizing the conveying force due to the remaining length of the paper sheet remaining upstream from the separation nip portion. The second engagement portion is rotated after rotating the side transmission member until the second engagement portion of the upstream transmission member comes into contact with the second engagement portion of the clutch member in a stopped state. And when driving is started to the first engaged portion, and the first engaged portion rotates to a position close to or close to the first engaging portion of the feeding roller and stops. Crap Members, and the delivery roller sheet separating and conveying apparatus according to claim 7, characterized in that to complete the return to the initial position relationship. A drawer conveying unit that draws and conveys a first sheet of paper that remains in the separating unit; and a sheet that remains in the separating unit by operating after at least the first sheet has passed through the separating unit. The paper sheet separating and conveying device according to claim 1, 2 or 3, further comprising a regulating member returning mechanism that returns the residual paper sheet to the upstream side together with the regulating member when there is a leaf,
The feeding section includes a feeding roller shaft, the feeding roller that rotates around the shaft of the feeding roller shaft, and is sequentially arranged along the axial direction, the upstream transmission member, the paper feeding motor, and the feeding roller. And a drive transmission delay mechanism that delays transmission of driving force in both forward and reverse directions by providing at least one relative rotation section between the upstream transmission member and the upstream transmission member,
The separation unit forms a separation nip portion between a feed roller that comes into contact with and conveys the first sheet surface fed by the feeding roller when forwardly rotated, and the feed roller. A friction separating member that prevents the paper sheet from advancing beyond the eyes, and
The relay transmission unit is disposed adjacent to and coaxially with the feed roller and rotates integrally therewith, and the relay transmission member relays driving force transmission between the upstream transmission member and the downstream transmission member. And comprising
The double-fed paper leaf return mechanism is disposed between a return lever that is rotatably supported by a shaft portion of the feed roller, and between the shaft portion of the feed roller and the return lever. A torque limiter that integrally rotates the shaft portion and the return lever in the forward rotation direction unless the torque difference between the return lever exceeds a certain value, and elastic biasing means that biases the return lever in the return direction; With
The drawer conveyance unit includes a drawer conveyance member that is disposed at a downstream position where the distance from the separation nip portion is shorter than the length of the paper sheet in the conveyance direction to form the extraction nip portion, and a drawer conveyance that drives the drawer conveyance member A motor,
The drive transmission delay mechanism is capable of relatively rotating the circumferential positional relationship between the feeding roller and the upstream transmission member bi-directionally between an initial positional relationship and an end positional relationship, and with respect to the upstream transmission member A configuration in which the driving force is not transmitted to the upstream transmission member until the positional relationship of the feeding roller reaches the final positional relationship from the initial positional relationship, and the driving force is transmitted after the final positional relationship is reached. With
The control means supplies the feeding roller to the feeding roller at an appropriate timing when the first sheet fed by the feeding roller reaches the drawing nip when the feed roller rotates forward. The feed roller, the relay transmission member, and the upstream transmission member using the conveyance force of the first sheet. Forward
The upstream transmission member that rotates normally rotates relative to the feeding roller in a stopped state within the range of the relative rotation section until the rear end of the paper sheet passes through the separation nip portion, and the upstream side When the relative rotation of the transmission member ends, the feeding roller and the upstream transmission member return to the initial positional relationship,
The return lever reaches a stop position rotated by a predetermined angle in the forward rotation direction against the return spring by rotating integrally with the shaft portion of the feed roller by the action of the torque limiter at the start of forward rotation of the feed roller. After that, keep the stop state while slipping with the shaft part,
When the rear end portion of the first sheet leaves the separation nip portion, the return lever is rotated in the return direction by the force of the return spring and the feed roller is rotated in the return direction. A paper sheet separating / conveying apparatus, wherein when a paper sheet remains in the separating section, the paper sheet is moved in a returning direction together with the regulating member.   The friction separating member is a brake roller supported by a brake roller shaft, and the brake roller is not rotated in the forward direction by a one-way clutch disposed between the brake roller shaft and a paper sheet. The paper sheet separating and conveying device according to claim 9, wherein the paper sheet separating and conveying device is configured to rotate in a returning direction. The relative rotation section is engaged with the engagement portion provided in the feeding roller and the engagement portion in the process of being provided in the upstream transmission member and relatively rotating in the forward / reverse direction with respect to the feeding roller. Formed between the engaged part and
In the initial state in which the feeding roller and the upstream transmission member are stopped, the engaging portion is located on the front side in the forward rotation direction of the engaged portion,
When the feeding roller is rotated forward and the first sheet is fed toward the separation nip portion, the engaging portion that is in an initial state is separated from the front portion of the engaged portion in a stopped state. After the engaging part has circulated and contacted the rear part of the engaged part, a driving force is transmitted to the engaged part to start the forward transmission of the upstream transmission member. Drive the feed roller forward through the relay transmission member,
The control unit stops driving of the feeding roller by the paper feeding motor after the first sheet fed by the feeding roller reaches the drawing nip portion of the drawing conveying member, and also performs the drawing conveyance. By carrying the paper sheet by the member, the feed roller, the relay transmission member, the above-described conveyance force due to the extra length of the first paper sheet left upstream from the separation nip portion, When the upstream transmission member is rotated forward and the engaged portion of the upstream transmission member comes into contact with or closes to the engaging portion of the feeding roller in the stopped state, the upstream side is rotated. The paper sheet separating and conveying device according to claim 9 or 10, wherein the return of the transmission member and the feeding roller to the initial positional relationship is completed. A clutch member is pivotally supported so as to be relatively rotatable with respect to the feeding roller and the upstream transmission member at a portion of the feeding roller shaft located between the feeding roller and the upstream transmission member,
The relative rotation section includes a first relative rotation section formed between the feeding roller and the clutch member, a second relative rotation section formed between the clutch member and the upstream transmission member, The paper sheet separating and conveying device according to claim 9, wherein the paper sheet separating and conveying device is constituted by: The first relative rotation section includes a first engagement portion provided on the feeding roller and a first engagement portion in a process of being provided on the clutch member and relatively rotating in the forward and reverse directions with respect to the feeding roller. Is formed between the first engaged portion that engages with or disengages from the first engaged portion,
The second relative rotation section includes the second engagement portion provided in the clutch member and the second engagement portion in a process of being provided in the upstream transmission member and relatively rotating in the forward and reverse directions with respect to the clutch member. Formed between a second engaged portion that engages or disengages with the joint portion;
In an initial state in which the feeding roller, the clutch member, and the upstream transmission member are stopped, the first engagement portion is located on the front side in the forward rotation direction of the first engaged portion, and the second engagement portion. The joint portion is located on the front side in the forward rotation direction of the second engaged portion,
Before the first engaged portion in which the first engaging portion in the initial state is stopped when the feeding roller is rotated forward and the first sheet is fed toward the separation nip portion. The first engaging portion circulates and abuts against the rear portion of the first engaged portion to transmit a driving force to the first engaged portion, and Start the forward rotation of the clutch member,
When the second engagement portion in the initial position rotates forward, the second engagement portion rotates in a direction away from the front portion of the second engagement portion, and the second engagement portion circulates to form the second engagement portion. After contacting the rear part of the joint part, the driving force is transmitted to the second engaged part to start the upstream transmission member to rotate in the transport direction, and the driving force in the forward direction from the clutch member Is transmitted to the upstream transmission member to drive the feed roller forward via the relay transmission member,
The control means stops the driving of the feeding roller by the paper feeding motor at a timing when the first sheet fed out by the feeding roller reaches a drawing nip portion of the drawing conveying member, and By carrying out drawing conveyance of the paper sheet by the conveyance member, the feed roller, the relay transmission member, and the upstream side are utilized by utilizing the conveyance force due to the extra length of the paper sheet remaining upstream from the separation nip portion. The second engagement portion is rotated after rotating the side transmission member until the second engagement portion of the upstream transmission member comes into contact with the second engagement portion of the clutch member in a stopped state. And when driving is started to the first engaged portion, and the first engaged portion rotates to a position close to or close to the first engaging portion of the feeding roller and stops. Crap Members, and the delivery roller sheet separating and conveying apparatus according to claim 12, characterized in that to complete the return to the initial position relationship.   A paper sheet handling apparatus comprising the paper sheet separating and conveying apparatus according to any one of claims 1, 2, 3, 5 to 13.

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