JP2007182295A - Paper sheet delivery device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper sheet delivery device capable of delivering paper sheets by achieving stable press contact with respect to a delivery means such as a pickup roller and appropriate orientation of tip parts of the paper sheets in the delivery direction, regardless of the states of the paper sheets such as folding and deformation, at the time of delivery of the paper sheets. <P>SOLUTION: A tip detection lever is arranged in a position abutting on a tip part in the delivery direction of a front paper sheet stored in a storage part. An oscillating support means is provided in the delivery means. A detection means for detecting whether or not press force satisfying delivery contact pressure of the tip detection lever with the delivery means is applied is provided. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a paper sheet feeding device that feeds paper sheets one by one from a storage unit in which the paper sheets are stacked and stored, and more specifically, secures a feeding pressure of the paper sheets to stabilize the paper sheets. The present invention relates to a paper sheet feeding device.

  2. Description of the Related Art Conventionally, a device that handles paper sheets such as an ATM (automatic teller machine), a copying machine, and a printer is provided with a paper sheet feeding device that feeds paper sheets stored from a storage unit one by one. The ATM handles bills as paper sheets, and handles paper as paper sheets in copiers and printers.

  A general paper sheet feeding device is provided with a pressing plate that can move up and down at the lower part of a storage unit that stores paper sheets stacked in the vertical direction. Move up and down the paper sheets deposited on the board. In addition, a pickup roller that is in contact with the uppermost surface of the stored paper sheets is provided on the upper portion of the storage unit.

  When feeding out a paper sheet, the paper sheet feeding device first raises the pressing plate and causes the pickup roller to press the uppermost surface of the stored paper sheet. By rotating the pickup roller in this pressed state, the uppermost paper sheet is fed out from the storage unit. The paper sheets fed out from the storage unit are fed out by being sandwiched between a pair of feeding rollers (feed roller and gate roller) corresponding to the overlap arranged in the feeding direction of the pickup roller.

  A paper sheet feeding device that handles a banknote disclosed in, for example, Patent Document 1 having such a feeding mechanism accumulates in a banknote cartridge by a leading edge detection lever that abuts the banknote leading edge in the feeding direction of the uppermost banknote. It is configured to detect that the height of the leading edge of the banknote in the banknote feeding direction on the uppermost surface of the banknote being reached has reached an appropriate feeding height, and to feed the uppermost banknote by rotating the pickup roller. .

  In addition, the sheet feeding device disclosed in Patent Document 2 detects that the pickup roller is pressed by the paper sheet and is displaced by a predetermined amount by a sensor, so that the paper sheet is applied to the pickup roller with an appropriate pressing force. It is detected that the button is pressed. When the pickup roller is pressed by the paper sheet and displaced by a predetermined amount, the uppermost paper sheet is configured to have a height suitable for feeding.

JP 2004-277112 A JP 2000-95360 A

  In the case of the ATM, it is essential to be able to handle banknotes in various states, such as banknotes in a folded state and diversification of banknote thicknesses set for discrimination of counterfeit tickets.

  In the method for detecting the tip position in the bill feeding direction disclosed in Patent Document 1, it is possible to detect whether the tip position in the bill feeding direction is a position suitable for feeding, but how to contact the pickup roller. Since the specific contact state is not detected, it cannot be determined whether or not the pressing strength of the pickup roller is appropriately loaded on the bill as the bill feeding contact pressure. Therefore, when there is a bend of the banknote, a deviation in the thickness of the banknote, or the like, even if the banknote is detected by the tip detection lever, the contact pressure between the banknote and the pickup roller may be insufficient. If the feeding of the banknote is started in a state where the contact pressure is insufficient, a feeding failure such as a banknote jam occurs, and the banknote cannot be fed out normally.

  In the method of detecting the pressure on the pickup roller disclosed in Patent Document 2, it is possible to detect whether a pressure suitable for feeding is loaded, but it is not possible to detect the position of the bill that is not in contact with the pickup roller. For this reason, for example, when the leading end position of a bill is bent, the leading end of the bill starts unsuitable for feeding, and there is a possibility that it cannot be fed out normally.

  In view of the above-described problems, an object of the present invention is to provide a paper sheet feeding device capable of improving the pressing performance on paper sheets and feeding the paper sheets stably.

  According to the present invention, the paper sheets stacked and stored in the storage unit are pressed from one side in the stacking direction, and the pressing force from the one side is applied based on the detection information of the pressing state corresponding to pressing at the other different position. It is a paper sheet feeding device to be controlled.

  According to this invention, it is possible to eliminate the pressing failure and stably feed out the sheets one by one.

Hereinafter, embodiments of a paper sheet feeding device according to the present invention will be described with reference to the drawings.
FIG. 1 shows the external appearance of an automatic teller machine (ATM) 11 on which a bill depositing / dispensing apparatus is mounted. The components of the automatic teller machine 11 include a card / detail slip processing mechanism 12 that processes a user's transaction card and transaction statement slip, a passbook processing mechanism 13 that processes a passbook, and a housing 14 that covers the device. A user operation unit (also referred to simply as an operation unit) 15 for displaying and inputting information necessary for the transaction, a banknote depositing / withdrawing device 16 for depositing / withdrawing banknotes, and a main body control unit 17 are provided.

  FIG. 2 is a block diagram showing a control mechanism of the automatic teller machine 11. The card / detail slip processing mechanism 12, the passbook processing mechanism 13, the user operation unit 15, and the banknote deposit / withdrawal device 16 are connected to the main body control unit 17 via the bus 18, and are required by a control command from the main body control unit 17. Perform the correct operation. In addition to the above, an interface unit 19 for connecting an external unit to the automatic teller machine 11, an clerk operation unit 20 that is operated by a clerk to input and output various information, and an external storage device 21 They are connected by a bus 18 and exchange necessary data. Power is supplied from the power supply unit 22 to the mechanisms and components described above.

FIG. 3 is an internal configuration diagram showing a configuration of the banknote depositing / withdrawing device 16 mounted on the automatic teller machine 11, and FIG. 4 is a block diagram showing a control mechanism including a banknote processing structure such as a storage and discharge box 34 to be described later. It is.
The banknote deposit / withdrawal device 16 includes a deposit / withdrawal port 31 for depositing / withdrawing banknotes, a banknote discriminating unit (also referred to simply as a discriminating unit) 32 for discriminating the denomination and conveyance state of banknotes, and until the transaction of the deposited banknotes is completed. , Temporary stacker (temporary storage) 33 for temporary storage, and storage and release storage of denomination (deposit storage for denomination, storage) that stores banknotes deposited from deposit / withdrawal port 31 and discharges banknotes during withdrawal transactions 34, in this embodiment, it has three denomination storage and discharge chambers 34a, 34b, 34c.

  In addition, each denomination banknote is loaded into the denomination storage and release warehouse 34, and the denomination is collected by the loading / recovery warehouse (loading or collection warehouse) 35 that collects each denomination banknote from the storage / release warehouse 34. There are a reject box 36 for stacking banknotes determined to be unreadable, banknotes determined to be non-transportable, and a transport path 37 for transporting banknotes connected to each component of the banknote depositing / dispensing device 16. Further, the storage unit database 38 (which may be included as one function of the banknote discriminating unit 32) storing the correspondence relationship between denominations and banknote sizes, etc., is connected via the main body control unit 17 and the bus 18 to control the main body. The control part which controls the banknote depositing / withdrawing apparatus 16 according to the instruction | indication from the part 17 and the detection of the state of the banknote depositing / withdrawing apparatus 16, and sends the information regarding the state of the banknote depositing / withdrawing apparatus 16 to the main body control part 17 as needed. 39. The main body control unit 17 and the control unit 39 are each composed of a CPU, a memory, and the like, and are collectively referred to as a control unit.

  Next, the internal structure of the banknote depositing / withdrawing device 16 will be described with reference to FIG. The banknote depositing / dispensing device 16 transports banknotes in the short side direction in order to transport banknotes at high speed and handle a large amount of banknotes efficiently. As a result, the banknotes are stored in the storage boxes such as the storage / discharge storage 34 and the loading / recovery storage 35 (stacked) from the transport path 37 and the banknotes are discharged from the storage boxes to the transport path 37 ( The orientation of the banknote when it is fed out is also set to the short side direction of the banknote in its storage direction or discharge direction.

  Here, the banknotes handled by the banknote depositing / dispensing device 16 are not only Japanese domestic banknotes but also foreign banknotes such as euro banknotes and dollar banknotes. Banknotes in Japan use 10,000 yen bills, 5,000 yen bills, 2000 yen bills, and 1000 yen bills, and the dimensions of the banknotes, particularly the dimension in the short side direction, are unified to about 76 mm. For this reason, the difference in a denomination does not become a problem about the banknote feeding operation | movement etc. from a storage box. However, there are 7 denominations of euro banknotes, the size of the minimum 5 euro banknote is 62 × 120 mm, the maximum 500 euro banknote is 82 × 160 mm, and the maximum dimension difference in the short side direction is 20 mm.

  Therefore, as shown in FIG. 3, the loading / recovery box 35 that mixes and stores a plurality of denominations such as foreign banknotes is configured to store banknotes in a standing posture. That is, both small and large bills can be arranged in the order of the long sides of the bills on the bottom surface of the storage unit, and the feeding and stacking operations of these bills are also stable.

  On the other hand, in the type in which banknotes are stored in a horizontal posture like the storage and discharge box 34, when a banknote having a large size is to be fed out, a special mechanism for aligning the long side portions of the banknotes is required and complicated. For this reason, when storing banknotes of a plurality of denominations at a time, the loading / recovery box 35 that can be stored in a standing position is desirable, and when storing banknotes of one denomination, they are stored in a horizontal position. A storage / release box 34 is desirable.

The reject store 36 stores banknotes that are determined to be unsuitable for deposit or withdrawal by the denomination, authenticity determination, or the like by the banknote determination unit 32.
In the upper unit of the banknote depositing / dispensing device 16, a depositing / dispensing port 31, a discriminating unit 32, and a temporary stacker 33 are disposed, and each storage for storing banknotes is disposed in the lower unit. In the lower unit, a loading / recovery box 35 is arranged on the upper side, and storage / discharge boxes 34a, 34b, 34c and a reject box 36 are arranged on the lower side.

  One side (the left side in FIG. 3) of the loading / recovery box 35 is provided with a loading / rejecting box 35a for collecting rejected banknotes that are determined to be indistinguishable at the time of loading, and the other side (the right side in FIG. 3) is loaded and unloaded of banknotes. Is provided with a feeding portion 35b. The banknotes fed out from the feeding section 35b of the loading / recovery box 35 are temporarily stored in the temporary stacker 33, and are distributed to the storage / discharge boxes 34a, 34b, 34c according to the denomination.

  Further, a part of the transport path 37 on the lower unit side is mounted on the front side of the apparatus adjacent to the loading / recovery warehouse 35, and the banknotes fed out from the loading / recovery warehouse 35 or stacked in the loading / recovery warehouse 35 in the vertical direction. Transport in both directions. Further, the conveyance path 37 includes a bill storage unit (lower unit) composed of a reject store 36 and a storage / release store 34a, 34b, 34c provided with a forgotten recovery store 36a, and a portion (upper portion) above the load recovery store 35. Unit).

  FIG. 5 shows a side view of the banknote feeding device 51 provided in the storage / discharge box 34. The banknote feeding device 51 includes a banknote cartridge 53 as a storage unit. The banknote cartridge 53 includes a storage space for storing the banknotes 52 in the vertical direction, and the upper side of the storage space is a banknote delivery side. Yes, the bottom is the banknote pressing side.

  The banknote feeding device 51 is provided with a pickup roller 54 as a feeding means, a feed roller 55, and a gate roller 56 on the banknote feeding side, a press detection lever 57 as an interlocking body, and a contact body. And a detection sensor 59 as a detection means and one sensor.

On the other hand, in the banknote feeding device 51, a pressing plate 60 as a pressing body is arranged on the banknote pressing side.
Thereby, the press plate 60 pushes up the bills 52 stored in a horizontal posture from the lower side to the upper side, and the pickup roller 54 feeds the uppermost bank note one by one from the upper feeding side.

  The pressing plate 60 functions as a bottom plate of the bill cartridge 53, is supported so as to be movable up and down, and is moved up and down by a driving means (not shown). The driving means is controlled by the control unit of the main body.

  In FIG. 5, the right direction of the bill cartridge 53 is the feeding direction of the bill 52 stored in the bill cartridge 53, and the feeding direction is the short side direction of the bill 52.

  The pickup roller 54 has a feeding contact portion 54 a that partially protrudes from the outer peripheral surface and takes out one sheet per rotation, and is disposed above the banknote cartridge 53, and is pushed upward from below by pressing of the pressing plate 60. It has a role of paying out the bills 52 one by one by contacting the uppermost surface of the bills 52.

  Further, the pickup roller 54 includes a swing support mechanism that swings both ends of the pickup roller 54 independently in the vertical direction (see FIG. 8), and is pushed upward by a bill stored in the bill cartridge 53. Then, the pickup roller 54 is pressed downward by a spring (not shown) to generate a load.

  A pair of upper and lower feed rollers 55 and a gate roller 56 are disposed on the feeding side of the bill cartridge 53 at a position in the vicinity of the bill feeding port that is fed by the pickup roller 54. Then, the bill 52 fed out in a substantially horizontal direction by the pickup roller 54 is sandwiched between the feed roller 55 and the gate roller 56 and sent out. The feed roller 55 and the gate roller 56 have overlapping surfaces corresponding to irregularities suitable for feeding banknotes on the outer peripheral surface, and this overlapping surface serves as a clamping surface.

  The press detection lever 57 has an L-shape, one end of the L-shape is pivotally supported by the rotation shaft 55a of the feed roller 55, and a long hole 57b opened at a bent portion at an intermediate position of the L-shape is picked up. The other end of the L-shape is pivotally supported by the rotation shaft 54b of the roller 54, and is provided upward as a press detection light shielding portion 57a. The press detection lever 57 rotates in conjunction with the vertical direction of the pickup roller 54 with the rotation axis 55a of the feed roller as a fulcrum.

  A detection sensor 59 such as a photosensor is provided at a position corresponding to the pressure detection light-shielding portion 57a at the upper end of the pressure detection lever 57. This detection sensor 59 is in a state in which the sensor light is shielded (turned off) while the pressure detection light-shielding part 57a remains at the original position when the bill 52 is not started to be pressed and when the bill 52 is not sufficiently pushed up. On the other hand, in a pressing state in which the pressing drive is started and sufficient lifting force is applied, the pressing detection light-shielding portion 57a that moves up in conjunction with the pushing up of the bill 52 projects the sensor light (turns on). Displaces upward to the light position.

  On the other hand, the leading end detection lever 58 has a square shape, and the lower side portion of the curved portion of the square shape is pivotally supported by a fulcrum pin 58a and attached to the bill feeding device 51. The fulcrum pin 58a is provided at a position below the rotation shaft 55a, and the rotation shaft 55a of the feed roller is positioned inside the curved portion of the tip detection lever 58. The tip detection lever 58 rotates around the fulcrum pin 58a, and the tip detection lever 58 is moved downward by receiving a stopper action in the downward direction when the inner peripheral surface of the tip detection lever 58 hits the rotating shaft 55a. It is regulated. The lower piece of the character shape is provided on the contact piece 58b that comes into contact with the leading edge of the bill, and the upper piece of the character shape is provided on the tip detection light shielding portion 58c. The tip detection lever 58 rotates about the fulcrum pin 58a, and the contact piece 58b that contacts the uppermost surface of the bill 52 pushed upward from below rotates in the vertical direction. The leading edge detection light-shielding portion 58c at the upper end is displaced in the vertical direction in conjunction with the push-up operation at the leading edge in the bill feeding direction.

  Also in this case, the detection sensor 59 is disposed at a position corresponding to the tip detection light-shielding portion 58c at the upper end of the tip detection lever 58. The detection sensor 59 is configured such that the tip detection light-shielding portion 58c is not in contact with the abutting piece 58b due to the stop of the pressing drive of the bill 52, or when the bill 52 is not sufficiently pushed up. The sensor light is shielded (off) in the light shielding region. On the other hand, in the contact state in which the pressing drive is started and sufficient lifting force is applied, the leading edge detection light-shielding portion 58c of the upper piece that moves up in conjunction with the pushing up of the bill 52 projects the sensor light ( Displacement is moved upward to the projection position to be turned on.

  In this case, whether or not the pressing force from the pressing plate 60 pressing the banknote 52 between the opposing surfaces of the pickup roller 54 and the pressing plate 60 exceeds a certain value satisfying the feeding contact pressure of the pickup roller 54 is determined. This can be detected by a detection sensor 59 that projects and blocks light according to the amount of upward movement of the press detection lever 57.

  More specifically, the pickup roller 54 is urged toward the bill 52 by urging means (not shown). For this reason, when the pressing force of the pressing plate 60 exceeds a certain value, the bill 52 is lifted against the biasing force of the biasing means, and the press detection lever 57 is displaced in conjunction with this, and can be detected by the detection sensor 59.

  Further, the pressing force from the pressing plate 60 pressing the banknote 52 between the opposed surfaces of the contact piece 58b of the tip detection lever 58 and the pressing plate 60 exceeds a certain value that satisfies the contact pressure of the contact piece 58b. It can be detected by the detection sensor 59 that projects and blocks light according to the amount of upward movement of the tip detection lever 58.

  More specifically, the leading edge detection lever 58 is biased toward the bill 52 by biasing means (not shown). For this reason, when the pressing force of the pressing plate 60 exceeds a certain value, the bill 52 is lifted against the biasing force of the biasing means, and the leading edge detection lever 58 is displaced in conjunction with this, and can be detected by the detection sensor 59.

  The strength of the pressing force by the urging means is set to be weaker on the tip detection lever 58 side than on the pickup roller 54 side. Thereby, the banknote 52 fully receives the feeding output on the pickup roller 54 side, and the contact force on the tip detection lever 58 side does not prevent the banknote from being fed out.

  In this case, when detecting whether or not the pressing force applied to both the detection levers 57 and 58 exceeds a certain value, each of the detection light-shielding portions 57a and 58c of the both detection levers 57 and 58 is detected by one detection sensor 59. This is a dual-purpose configuration for detection. Specifically, both the detection light-shielding portions 57a and 58c may be interposed in the same detection area to project and block the light. When both the detection light-shielding portions 57a and 58c are in the light projection position, It is set so as to coincide with the point in time when the pressing state satisfying the minimum necessary feeding condition is satisfied. Thereby, the movement of both detection levers 57 and 58 can be efficiently detected by one detection sensor 59. In this case, the cost can be reduced by reducing the number of sensors.

  The on / off signal detected by the detection sensor 59 is monitored by the control unit 39. Based on the on / off state, the control unit 39 controls a driving device (not shown) of the pressing plate 60. For example, when the bill 52 is fed, when the press plate 60 is driven to push the bill 52 upward, the press plate 60 continues to rise to a position where the detection sensor 59 that is a pressing position suitable for bill feeding is turned on. Let Then, when the detection sensor 59 is turned on, the control unit 39 stops the rise of the pressing plate 60. In this way, a pressing force suitable for feeding the banknote 52 can be secured, and a stable feeding operation can be executed.

  The upper part of the guide plate 61 provided in the banknote feeding direction (right side in FIG. 5) of the banknote cartridge 53 has a smooth curved surface part 61a suitable for feeding the banknote 52. The curved surface part 61a includes a feed roller 55 and a gate. It is a banknote guide curved surface that extends toward the clamping position with the roller 56, and faces the lower side of the contact piece 58 b of the tip detection lever 58.

  FIG. 6 is a bottom view of the banknote cartridge 53 on the feeding side, and shows the positional relationship among the pickup roller 54, the feed roller 55, the press detection lever 57 and the leading end detection lever 58.

  The pressure detection lever 57 and the leading edge detection lever 58 are interposed between a pair of left and right feed rollers 55 disposed along the long side direction of the bill 52, and both detection light shielding portions of the detection levers 57 and 58 are provided. 57a and 58c are extended in parallel to the detection area of the detection sensor 59.

  In this embodiment, the pickup rollers 54 are arranged at three equal intervals along the long side direction of the banknote 52. Moreover, the center pick-up roller is arrange | positioned in the approximate center also with respect to the long side direction of the banknote uppermost surface. Further, these pickup rollers 54 are connected to the rotation shaft 55a of the feed roller 55 by links 62 provided at two positions on both ends in the width direction of the rotation shaft 54b of the pickup roller 54 (hereinafter referred to as the pickup roller rotation shaft 54b). (Hereinafter referred to as “feed roller rotating shaft 55a”).

  FIG. 7 is a view showing the swinging support means of the pickup roller 54. FIG. 7A shows a front view of the main part of the banknote feeding device 51, and FIG. 7B shows a side view of the main part of the banknote feeding apparatus 51. The pair of left and right links 62 connect the pickup roller rotating shaft 54b and the feed roller rotating shaft 55a as swing support means, and the links 62 on both sides are independently movable with reference to the feed roller rotating shaft 55a. To do. For this reason, the both ends of the bill feeding width direction of the pickup roller 54 are swingably supported in a seesaw shape with respect to the pressing direction via the links 62 on both sides. Therefore, the pickup roller 54 can move not only in the vertical direction but also at an angle with respect to the feed roller 55.

  As a result, for example, as shown in FIG. 8, the banknotes stacked on the banknote cartridge 53 are stacked to be inclined due to folds or uneven thickness, and the uppermost banknote is pushed up to the three pickup rollers 54. The pickup roller 54 can be inclined along the inclination of the top face of the banknote, and at least two pickup rollers 54 can press the banknote corresponding to the inclination. Therefore, the pickup roller 54 can always ensure stable contact performance with the banknote following the inclination of the top face of the banknote.

  FIG. 9 is a side view of a main part of the pressure detection lever 57 except for the illustration of the tip detection lever 58 that overlaps in parallel in the lateral direction in order to clarify the detection structure of the pressure detection lever 57. As the pickup roller 54 swings, the press detection lever 57 rotates in the vertical direction about the rotation shaft 55 a of the feed roller 55. Further, in order to facilitate the vertical movement of the pressure detection lever 57, the pickup roller rotating shaft 54a is supported by a long hole 57b.

  Further, since the press detection lever 57 is attached to the approximate center in the bill feeding width direction, the pickup roller 54 is inclined when the detection sensor 59 detects the press detection light-shielding portion 57a of the press detection lever 57. However, since the detection position is the center, the influence of the detection error can be reduced.

  FIG. 10 is a side view of the main part shown without the illustration of the pressure detection lever 57 that overlaps in parallel in the side surface direction in order to clarify the detection structure of the tip detection lever 58. The leading end detection lever 58 is formed such that the lower outer surface of the lower contact piece 58a is a smooth arc surface that comes into contact with a bill.

  In this embodiment, one leading edge detection lever 58 is disposed substantially at the center in the bill feeding width direction, but a plurality of leading edge detection levers 58 may be disposed. For example, the leading edge detection levers 58 are arranged at both ends in the bill feeding width direction, and both the detection light-shielding portions 58b provided on both the leading edge detection levers 58 can project and shield the sensor light of the detection sensor 59 independently. If it is, it can detect more reliably that the front-end | tip position of a banknote is an appropriate position. For this reason, the bill feeding operation can be started at the timing when the pressing condition suitable for the bill feeding is satisfied.

  The detection sensor 59 is arranged so that the light emitting portion and the light receiving portion face each other with the two detection light shielding portions 57a and 58b adjacent to each other between the pressure detection light shielding portion 57a and the tip detection light shielding portion 58c. . As the tip detection lever 58 rotates, the detection sensor 59 changes between a position where the tip detection light-shielding part 58c blocks the sensor light and a position where the light is projected. Further, as the press detection lever 57 rotates, the detection sensor 59 changes between a position where the press detection light-shielding portion 57a blocks the sensor light and a position where the light is projected. The detection sensor 59 is turned on when neither the pressure detection light shielding part 57a nor the tip detection light shielding part 58a is located between the light emitting part and the light receiving part, and at least one light shielding part is provided between the light emitting part and the light receiving part. Turn off when is located.

Next, the processing operation of the banknote feeding device 51 will be described with reference to the flowchart of FIG.
The banknote feeding device 51 waits for a banknote feeding instruction by lowering the pressing plate 60 in a waiting state for feeding the banknote 52 stored in the banknote cartridge 53 (see FIG. 5). At this time, the uppermost banknote 52 stored in the banknote cartridge 53 is not in contact with the pickup roller 54, and is not in contact with the contact piece 58 b of the leading end detection lever 58. Further, the detection sensor 59 is turned off by the sensor light being shielded by the tip detection light shielding part 58c and the pressure detection light shielding part 57a interposed in the detection region between the light emitting part and the light receiving part.

  The banknote feeding device 51 starts a banknote feeding operation when an instruction for feeding the banknote 52 is issued from the main body control unit 17 via the control unit 39. In this bill feeding operation, first, the control unit 39 raises the pressing plate 60 (step s1). Thereafter, when the detection sensor 59 is turned on (step s2), the control unit 39 stops the raising of the pressing plate 60 (step s3).

  As the pressing plate 60 rises, the banknotes 52 stored in the banknote cartridge 53 are raised in a stacked posture. Then, as shown in FIG. 12, the raised uppermost banknote 52 comes into contact with the tip detection lever 58 and the pickup roller 54 corresponding to the upper side. The leading edge detection lever 58 that abuts on the uppermost bill 52 abuts on the leading end in the bill feeding direction.

  By the way, as shown in FIG. 13 (A), when the tip of the uppermost surface in the bill feeding direction is valley-folded into a V shape, the tip detection lever 58 is pushed up to the valley-folded portion, and the entire bill is flat. Even if the upward movement of the tip position is detected as if it was pushed up in a state, the pickup roller 54 may be insufficiently pressed or not in contact. At this time, a shortage occurs due to insufficient pressing, or the feeding timing shifts, causing a feeding error that sticks to the next banknote and causes a withdrawal.

  Even in such a state unsuitable for feeding out banknotes, the pressing plate 60 continues to rise until the position where the detection sensor 59 is turned on, so that both the pressure detection lever 57 and the leading edge detection lever 58 52 is pushed upward to a height position suitable for feeding bills, that is, a position at which a so-called detection sensor 59 is turned on.

  The bill breaks gradually on a flat surface during the pressing process. Here, the case where the banknote is folded has been described. However, even when banknotes having non-uniform thickness are stacked and the banknote is tilted, one of the press detection lever 57 and the leading edge detection lever 58 is similarly hit. Only one of the detection levers may move up, but even in such a state, the detection sensor 59 indicates that both detection levers 57 and 58 have sufficiently moved up to reach an upward movement position suitable for bill feeding. Since the pressing operation is continued until it is turned on and detected, the bill 52 stored in the bill cartridge 53 is reliably fed out.

  As described above, when the top end of the banknote feeding direction is folded, the timing at which the bill 52 comes into contact with the contact piece 58b of the tip detection lever 58, and the pressing timing at or above a certain level generated at the pickup roller 54, Therefore, the timing at which the tip detection lever 58 rotates differs from the timing at which the press detection lever 57 rotates. Accordingly, the timing at which the tip detection light shielding portion 58c and the press detection light shielding portion 57a change from the light shielding position of the detection sensor 59 to the light projection position is also different. On the other hand, the detection sensor 59 is turned on when both the pressure detection light-shielding part 57a and the tip detection light-shielding part 58c are moved to the light projection position, so that one light-shielding part 58c (or as shown in FIG. 13A). Even if the other light-shielding portion 57a) is not present at the light-shielding position of the detection sensor 59, the other light-shielding portion 57a (or one light-shielding portion 58c) is present at the light-shielding position of the detection sensor 59. Off state. For this reason, the raising of the pressing plate 60 is not stopped.

  Further, as shown in FIG. 13B, when the central portion of the banknote feeding direction on the top surface of the banknote bulges upward for some reason, the pickup roller 54 that comes into contact with the middle bulge part first detects the tip. Even if only the pickup roller 54 is pushed up before the lever 58 and moves upward to the light projecting position, the top end of the uppermost banknote feeding direction does not rise in parallel with the upward movement position suitable for feeding, and the leading edge detection lever There is a case where the state where the pressure 58 is not moved up to the light projection position is insufficient. Also at this time, insufficient feeding causes a feeding error such as emptying, taking out, or paper jam.

  Even in such a case, until the light shielding portions 57a and 58c are moved up to the light projecting position and the detection sensor 59 is turned on, the ascending of the pressing plate 60 is not stopped but stopped until the feeding pressing condition is satisfied. Can be raised.

  In particular, since the pickup roller 54 is in contact with the uppermost banknote 52, the banknote 52 stored in the banknote cartridge 53 is sandwiched between the upper pickup roller 54 and the lower pressing plate 60. It is in. Among these, the upper pickup roller 54 is pressed downward by a spring (not shown) against the ascent of the pressing plate 60. For this reason, the banknote 52 presses and compresses the banknote 52 from the upper and lower sides with the pushing-up operation at the time of feeding, and the curved part which the banknote 52 swelled is gradually corrected to a planar state.

  FIG. 14 shows that both the pressure detection lever 57 and the leading edge detection lever 58 are pushed up by the uppermost banknote and rotated upward, the detection sensor 59 is turned on, and the banknote 52 is raised to a height suitable for feeding. Represents the state. At this time, the raising of the pressing plate 60 is stopped. When the detection sensor 59 is turned on, a pressing force suitable for feeding is acting on the pickup roller 54 and the tip detection lever 58. In other words, the top end of the uppermost banknote feeding direction is at a height suitable for feeding, and the uppermost banknote is in contact with the pickup roller 54 with a pressing force suitable for feeding. In addition, when the detection sensor 59 is turned on, the uppermost banknote 52 is in a flat state suitable for feeding with the folding substantially corrected.

  In this planar state, the control unit 39 starts driving the pickup roller 54 (step s4). The controller 39 drives the pickup roller 54 until a time corresponding to the set number of feeds has elapsed (step s5). When the pickup roller 54 is rotated for a predetermined time, the control unit 39 stops the rotation of the pickup roller 54 (step s6).

  When the pickup roller 54 pays out, the uppermost banknote 52 is drawn out to the nipping and conveying side between the feed roller 55 and the gate roller 56. At this time, the uppermost banknote 52 to be fed has a height suitable for feeding, and the banknote 52 is also bent and curved, so that the banknote 52 is stably fed out. Thereafter, the fed banknote 52 is sandwiched between the feed roller 55 and the gate roller 56 and fed out from the banknote cartridge 53.

The control unit 39 counts the number of bills fed out by a feeding sensor (not shown) and determines whether the number requested from the main body control unit 17 has been paid out (step s7).
At this time, if the control unit 39 determines that the requested number of banknotes 52 has been paid out in step s7, the present process is terminated.

  On the other hand, when the control unit 39 determines that the requested number of bills 52 has not been paid out in step s7, the control unit 39 determines whether the detection sensor 59 is on (step s8). If the sensor 59 is on, the pressing state suitable for feeding is maintained, so the process returns to step s4, and the bill feeding process after step s4 is repeated again. On the other hand, when it is determined in step s8 that the detection sensor 59 is off, the process returns to step s1 and repeats the payout process after step s1.

  As described above, the banknote feeding device 51 of this embodiment detects that the top end of the banknote feeding direction stored in the banknote cartridge 53 has a height suitable for feeding by the leading edge detection lever 58. Since the pressure detection lever 57 detects that the pressure state between the bill 52 and the pickup roller 54 is equal to or greater than a certain value satisfying the feeding contact pressure, the bill roller 52 is fed out by rotating the pickup roller 54. The bill 52 fed out from 53 can be fed out stably without paper jam.

  In particular, in order to start paying out after satisfying the pressing conditions suitable for paying out banknotes, even if the banknotes are in various states such as corner breaks and curves during storage, they are straightened and correct before being drawn out. Can be extended. Further, since the pressing force is increased until a pressing force that can be properly fed out is obtained, and a sufficient pressing force is obtained, the bill can be always fed out stably. In addition, since the contact surface of the leading end detection lever 58 with the bill is positioned at the bill end on the feeding side, it is possible to correct the folding on the feeding end portion that is likely to cause a feeding abnormality.

  FIG. 15 shows a side view of the banknote feeding device 51 provided in the loading / recovery storage 35 that stores the banknote 52 in a standing posture. The bill feeding device 51 provided in the loading and collecting box 35 has the same structure except that the bill storage direction and the bill feeding direction are different from the bill feeding device 51 of the storage and discharge box 34 in the vertical and horizontal directions. The description is omitted. In this case, banknotes can be stored in a standing posture, and can be used for a feeding device for a standing posture. In particular, it is suitable for feeding out mixed bills of different sizes.

  In the embodiment described above, the present invention has been described by taking the bill feeding device as an example. However, the present invention can also be applied to other devices that handle paper sheets such as a copying machine and a printer. In addition, the sheet feeding performance can be improved and the cost can be reduced.

The perspective view which shows schematic structure of an automatic teller machine, Control mechanism block diagram of automatic teller machine, The internal block diagram which shows the internal structure of a banknote depositing / withdrawing apparatus, Control mechanism block diagram of banknote deposit and withdrawal device, The side view which shows the supply standby state of a banknote supply apparatus, A bottom view of the main part of the bill feeding device, Explanatory drawing showing the swing support structure of the pickup roller and the support structure of the press detection lever, Front view of the main part showing the state in which the pickup roller swings, Side view of the main part that clarifies the detection structure of the pressure detection lever, Side view of the main part with the detection structure of the tip detection lever clarified, The flowchart which shows the feeding process operation | movement of the banknote of a banknote feeding apparatus, The side view which shows an example of the press continuation state of a banknote feeding apparatus, The side view which shows an example of the banknote feeding state in which the banknote of the banknote feeding apparatus is deforming, The side view which shows the press completion state of a banknote feeding apparatus, A side view of a banknote feeding device for storing banknotes in a standing position,

Explanation of symbols

39 ... Control part 51 ... Bill feeding device 53 ... Bill cartridge 54 ... Pickup roller 57 ... Press detection lever 58 ... Tip detection lever 59 ... Detection sensor 60 ... Press plate 62 ... Link

Claims (5)

A storage section in which one side in the stacking direction for storing paper sheets is set as a feeding side of the paper sheets, and the other is set as a pressing side of the paper sheets;
A feeding means disposed on the feeding side of the storage unit and feeding the foremost paper sheets one by one in contact with the foremost surface of the paper sheets pressed to the feeding side;
Driving means for pressing the paper sheets stored in the storage unit from the pressing side of the storage unit to the feeding side with a pressing body;
A paper sheet feeding device comprising:
An abutting body that abuts at a position different from the feeding means on the forefront of the paper sheet;
The first pressing force from the pressing body pressing the paper sheets between the opposing surfaces of the feeding means and the pressing body exceeds a predetermined feeding contact pressure, and the contact body and the pressing body Detecting means for detecting that the second pressing force from the pressing body pressing the paper sheet between the opposing surfaces exceeds a predetermined contact pressure;
Control means for controlling the drive means based on detection by the detection means;
Paper sheet feeding device equipped with The paper sheet feeding device according to claim 1, wherein the contact body is disposed in the vicinity of a feeding port provided on a feeding side of the storage unit. 3. The configuration according to claim 1, wherein the detection unit is configured to detect whether or not the first pressing force exceeds a feeding contact pressure and the second pressing force exceeds a contact pressure. Paper sheet feeding device. The feeding means comprises swing support means for swinging and supporting both ends in the paper feed width direction in a seesaw shape with respect to the pressing direction,
As the detection means, comprising an interlocking body that interlocks with the displacement in the pressing direction of the feeding means, and a sensor that detects the displacement of the interlocking body,
The paper sheet feeding device according to claim 1, 2, or 3, wherein the interlocking body is connected to the feeding means at a central portion in the paper feeding width direction. The control means detects the pressing body until the detecting means detects that the first pressing force exceeds the feeding contact pressure and the second pressing force exceeds the contact pressure. The paper sheet feeding device according to any one of claims 1 to 4, which instructs a forward movement.

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