JPH0717657A - Paper handling equipment and paper storage box - Google Patents

Abstract

(57) [Summary] [Purpose] When a jam occurs, a bill handling device that switches to a low speed and feeds, a bill handling device in which the feed speed of the feed roller is set to be equal to or less than the feed speed of the feed roller, and an abnormality in the thickness of bills is detected With regard to a bill handling device that can perform, and a bill storage box with a guide plate in the storage box that has an upward slope, the automatic jam restoration rate is improved, the wear of the pick roller is reduced, and the abnormality of the thickness detection mechanism is detected. Banknote handling device that can
Another object of the present invention is to provide a bill storage box that can eliminate the loss of the pressing force of the pressing plate. [Structure] In a paper sheet handling device that feeds one by one by rotation of a feeding roller 3 that comes into pressure contact with the foremost surface or the bottom surface of a stack of paper sheets 1 and conveys by a feed roller 4 provided at a subsequent stage of the feeding roller 3. An abnormal first detection means 11 and a control means 17 for controlling the feed speed of the feed roller 4 are provided.
Based on the detection output, the control means 17 switches the feeding speed to a predetermined low speed and conveys the relevant paper sheet 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bill handling device and a bill storage box incorporated in an automatic transaction device used in a financial institution, and particularly, when a fed bill is jammed,
A bill handling device that switches the feeding speed to a low speed and feeds the bill, a bill handling device in which the feed speed of the feed roller is set to be equal to or less than the feeding speed of the feeding roller, a bill handling device that can detect an abnormality in the thickness detection mechanism of the bill, and The present invention relates to a banknote storage box in which a guide plate in the storage box is provided with a slope such that the upper side thereof is separated from the end of the banknote.

Recently, in financial institutions such as banks, Automatic Teller Ma-chine (hereinafter referred to as ATM)
Automated teller machines (Cash Dispenser: CD) and the like have rapidly become popular. A currency handling device for depositing and withdrawing cash is incorporated in these automatic transaction devices. In addition, a simple dispenser that dispenses only one denomination has been developed and put into practical use.

[0003] In these devices, it is difficult to automatically and automatically repair jam jams when feeding and delivering bills, abrasion of the pick roller due to withdrawal of bills when the bills are fed out, it is difficult to detect an abnormality in the double feed detector, and storage is performed. There are various problems that the loss of the pressing force of the pressing plate in which the banknotes in the box are accumulated is large, and a method for solving these problems is desired.

[0004]

2. Description of the Related Art FIG. 12 shows an internal side view of a dispensing device for a single denomination. As shown in the figure, storage box 2a, pick roller 3
a, a feed roller 3b, a feed roller 4a, a discriminating section 5a, a pool section 6, a reject section 7, a conveying path 8a, and a dispensing port 9, and a conveying roller R and a gate G are provided at important points of the conveying path 8a. Has been. The banknote 1a to be withdrawn is stored in the storage box 2a in advance, and is detachably attached to the attachment portion 10 of the device in a drawer shape.

As shown in FIG. 13, springs 22a and 22b press the pressing plate 20a in the direction of arrow A to press the bill 1a against the pick roller 3a and the feed roller 3b. The pick roller 3a and the feed roller 3b are stepping motors.
It rotates by the drive of M1, and the feed roller 4a and the transport roller R
Is rotated by driving the stepping motor M2.

As shown in FIG. 14, there are four feed rollers 3b.
The individual rollers are fixed to the shaft 40 with a space therebetween, and the driving force of the stepping motor M1 is transmitted by the driving belt B1 wound around the pulley P1. A one-way clutch C is incorporated in the pulley P1.

Between two feed rollers 3b on the left and right, an idle roller IR having the same diameter as the feed roller 3b is rotatably fitted to the shaft 40 via a bearing b1 and fixed to the shaft 50. Is in contact with the feed roller 4a. Feed roller 4a
The driving force of the stepping motor M2 is transmitted by the driving belt B2. Therefore, the feed roller 3b is the pick roller 3a.
Intermittently rotates at the same speed (the outer peripheral speed is the same speed, and so on), and the idle roller IR rotates at the same speed as the feed roller 4a.

Further, in order to speed up the withdrawal process, that is, in order to quickly convey and withdraw the banknote 1a fed by the pick roller 3a, the feed speed V ₂ of the feed roller 4a and the feed roller R is set to the pick roller 3a. And the feeding speed of the feed roller 3b is set higher than V ₁ (V ₂ > V ₁ ).

Therefore, the pick roller 3a and the feed roller 3b
When the feeding roller 4a and the idle roller IR sandwich the bill 1a, the one-way clutch C causes the feed roller 3b to rotate at the same speed as the feeding roller 4a, compared to the speed at which the bill 1a is fed.

Referring again to FIG. 12, the discriminating section 5a discriminates and rejects the double feed of the banknote 1a fed out by the pick roller 3a from the storage box 2a, and rejects the normal banknote 1a by a control unit (not shown). Are counted.

The pool section 6 pools the bills 1a which have been discriminated and counted. A region behind the pressing plate 20a, which will be described later, of the storage box 2a is used as the reject unit 7, and rejects and stores the banknote 1a in which double feed or the like is discriminated during feeding.

As shown in the plan view of FIG. 15, the storage box 2a is regulated in position by being guided by the guide plates 21a and 21b at both longitudinal ends of the stored bills 1a, and as described in FIG. The bill 1a is pressed toward the opening 23 at the tip by the pressing plate 20a.

Further, as shown in FIGS. 16 (a) and 16 (b), the discriminating section 5a has a gap between the opposing reference roller 50a and detecting roller 51a that is 1 or more and 2 or less of the thickness of the bill 1a. Bearing 52a,
Spacers 53a and 53b are inserted between the 52b and the bearings 52c and 52d.

The reference roller 50a is constantly rotated by the drive of the motor M2, and the detection roller 51a is stationary. Detection roller
A slit plate 54 is attached to one end coaxial with 51a, an optical sensor 55 is provided facing the slit 540 of the slit plate 54, and detects the rotation of the slit 540 when the slit plate 54 rotates.

Therefore, when one banknote 1a passes between the reference roller 50a and the detection roller 51a, the detection roller 51a does not rotate, so the optical sensor 55 does not detect the rotation of the slit 540. When two or more banknotes 1a are double-fed and pass between the reference roller 50a and the detection roller 51a, the banknotes 1a
The gap between the reference roller 50 and
The detection roller 51a is rotated by the rotational force of a. The optical sensor 54 detects the number of rotations of the slit plate 54 at this time and compares it with a set value to detect double feed.

With such a configuration, when the customer requests payment of cash, when the transaction card is inserted into the card insertion port of the operation panel (not shown), the data such as the account number is displayed on the lead part (not shown). When the password is read and the personal identification number is entered with the operation button, after confirmation on the device side, the withdrawal amount is input according to the guidance, the displayed amount is confirmed, and the confirmation button is pressed.

Then, a host computer (not shown) is inquired as to whether or not the withdrawal is possible, and when a response signal indicating that the withdrawal is possible comes, the stepping motors M1 and M2 are driven and the pick roller is driven.
The bill 1a is fed by the 3a, fed by the feed roller 3b and the feed roller 4a, and conveyed by the conveyance roller R.

The conveyed bills 1a are discriminated by the discriminating section 5a, and when they are discriminated as normal, they are counted and pooled in the pool section 6. When the bills 1a of the requested amount are pooled in the pool section 6, the bills 1a are collectively sent to the dispensing port 9, and the customer receives the dispensed bills 1a. (Alternatively, there is also a device in which after the counting operation is finished first, the host inquires whether or not the withdrawal is possible, and the withdrawal response signal is used to immediately withdraw money.) Thus, the banknote 1a is withdrawn. However, from the storage box 2a to the banknote 1a
Paper money 1a that collided with the feed roller 3b when the
When a jam occurs in the jam bill 1a, an optical sensor 11a composed of a light emitting element and a light receiving element arranged so as to cross the conveying path 8a immediately after the feed roller 3b detects the jam roller 1a by rotating the feed roller 4a in a slightly reverse direction. After the paper is removed from the feed roller 4a and then sent out again, a slight jam may be repaired and the bill 1a may be sent normally.

When such automatic forced repair is not successful, an alarm is transmitted as a jam failure, and the maintenance staff removes the jam banknote to repair it. Optical sensor 11a
According to the jam detection method described above, the passing time of the bill 1a is monitored, and if the optical sensor 11a does not reach or does not pass within a predetermined time after being fed, it is determined that a jam has occurred.

[0020]

According to the above-mentioned conventional method, (1) the feed path of the feed roller and the feed roller is set to be high in order to increase the processing speed because the feed path is long in structure. However, a jam generated during the transportation of bills is not fast enough to automatically and forcibly repair the jam due to the high feeding speed, and the failure repair rate is low. Therefore, it is a bottleneck in the unmanned operation of the device after business hours or on holidays.

(2) In order to speed up the processing speed, the feeding speed of the feed roller and the conveying roller is set to be high, and the feeding speed of the feeding roller is faster than the feeding speed of the pick roller, so that the bills are fed. When the back end of the bill fed out by the pick roller does not pass through the pick roller, the leading edge of the bill reaches the feed roller and is fed at high speed to pull out the bill, causing friction between the bill and the pick roller. Not only does it occur and stable feeding becomes difficult, but
There is an inconvenience that wear of the pick roller occurs.

(3) In double-feed detection, when the bill is double-fed, the gap between the reference roller and the detection roller is closed and the slit plate rotates and is detected, but when one bill passes, the slit plate does not rotate. Therefore, even if some abnormality such as adhesion of foreign matter or shaft bending occurs on the reference roller or the detection roller, it cannot be detected.

(4) The banknotes stored in the storage box and pressed by the pressing plate are guided by the guide plate, but the pressure of the pressing plate is lost due to the friction between the guide plate and the banknote, and the feeding is not stable. In order to realize stable feeding, it is necessary to use a complicated mechanism such as forcibly driving the pressing plate by an external drive source to apply pressure, which makes the mechanism large and costly. There is a problem.

According to the present invention, the automatic restoration rate of jams is improved, the wear of the pick roller is reduced, the abnormality of the thickness detecting mechanism can be detected, and the loss of the pressing force of the pressing plate can be eliminated. It is intended to provide a paper sheet storage box.

[0025]

1 to 4 are block diagrams of the principle of the present invention. FIG. 1 is a principle configuration diagram corresponding to claim 1, FIG. 2 is a principle diagram corresponding to claim 2, and FIG. Is claim 3
FIG. 4 is a principle configuration diagram corresponding to (4), and FIG. 4 is a principle diagram corresponding to claim 4.

1) Means corresponding to claim 1 In FIG. 1, 1 is a paper sheet, 3 is a delivery roller, 4 is a feed roller, and 11 is an abnormal delivery of the paper sheet 1 delivered by the delivery roller 3. First detecting means for detecting, 17
Is a control means for controlling the feed speed of the feed roller 4.

Accordingly, the paper sheets 1 are fed one by one by the rotation of the feeding roller 3 which is pressed against the foremost surface or the bottom surface of the accumulated paper sheets 1, and is fed by the feed roller 4 provided at the subsequent stage of the feeding roller 3. In the paper sheet handling apparatus to be conveyed, the feeding speed of the feed roller 4 is switched to a predetermined low speed by the control means 17 based on the detection output of the first detecting means 11 so that the corresponding paper sheet 1 is conveyed. Is configured.

2) Means corresponding to claim 2 In FIG. 2, 1 is a paper sheet, 3 is a delivery roller, and 4 is a feed roller. Therefore, the sheets 1 are fed one by one by the rotation of the feeding roller 3 that is pressed against the forefront or the bottom of the accumulated sheets 1, and the paper is conveyed by the feed roller 4 provided at the subsequent stage of the feeding roller 3. In the leaf handling device, the feeding speed of the feeding roller 4 is set to the feeding roller 3
The feeding speed is set to be less than or equal to the feeding speed.

3) Means corresponding to claim 3 In FIG. 3, 1 is a paper sheet, 3 is a delivery roller, 4 is a feed roller, 8 is a conveyance path, and 50 is a reference for rotational driving provided in the conveyance path 8. A roller, 51 is a detection roller elastically rolling contact with the reference roller 50, and 56 is a second detection means for detecting a displacement amount when the detection roller 51 moves in a direction away from the reference roller 50.

Therefore, the paper sheets 1 are fed one by one by the rotation of the feeding roller 3 that is pressed against the foremost surface or the bottom surface of the accumulated paper sheets 1, and is fed by the feed roller 4 provided at the subsequent stage of the feeding roller 3. In the paper sheet handling apparatus that carries the paper path 8, the thickness abnormality of the paper sheet 1 is determined according to the amount of displacement detected by the second detection means 56.

4) Means corresponding to claim 4 In FIG. 4, 1 is a paper sheet, 3 is a feeding roller, 20 is a stack of paper sheets 1, and the frontmost surface or the bottom surface of the stacked paper sheets 1 The pressing plate 2 for pressing the feeding roller 4 against the feeding roller 4, 2 is a storage box in which the paper sheets 1 are collected and stored on the pressing plate 20, 21 is provided inside the storage box 2 so as to face each other, and the end of the paper sheet 1 is provided. It is a guide plate in which a slope is formed on the surface facing the section so as to separate from the end of the paper sheet 1 in the upward direction.

Therefore, the paper sheets 1 pressed by the pressing plate 20 by the feeding roller 3 are pressed by the pressing plate 20 in the paper sheet storage box for feeding the paper sheets 1 one by one by the rotation of the feeding roller 3. The paper sheet 1 is configured to be guided by the guide plate 21.

[0033]

[Action]

1) Actions corresponding to claim 1 An abnormality in the feeding of the paper sheet 1 fed by the feeding roller 3 is detected by the first detecting means 11, and the control means 17 causes the feeding roller 4 based on the detected output. The feeding speed of the feeding roller to a feeding speed of the feeding roller 3 or less,
Paper sheet 1 in which feeding error is detected by the feed roller 4
By transporting, the success rate of the automatic forced repair of the feeding abnormality is increased.

2) Action corresponding to claim 2 By setting the feed speed of the feed roller 4 to be equal to or lower than the feed speed of the feed roller 3, the paper sheet 1 fed by the feed roller 3 having a fast feed speed is fed. Since the sheet is conveyed by the slow feed roller 4, the front end of the sheet 1 does not reach the feed roller 4 and is not fed at high speed in a state where the rear end of the sheet 1 does not pass through the feeding roller 3.
Therefore, the sheet 1 can be prevented from being pulled out by the feed roller 4, stable feeding can be performed, and abrasion of the feeding roller 3 can be prevented.

3) Operation corresponding to claim 3 Since the reference roller 50 and the detection roller 51 are in rolling contact with each other, even when the sheet 1 does not pass between the reference roller 50 and the detection roller 51, the detection roller is detected. When 51 moves away from the reference roller 50, the displacement amount is detected by the second detection means 56, so that not only double feed but also the reference roller 50 is detected.
Alternatively, it is possible to detect an abnormality of the detection roller 51, for example, a bending of the shaft of the reference roller 50 or the detection roller 51, or a change in the displacement amount due to adhesion of a foreign substance, and make a determination according to the displacement amount.

4) Operation corresponding to claim 4 Since the paper sheet 1 pressed by the pressing plate 20 is guided by the guide plate 21 having an upward slope, the paper sheet pressed by the pressing plate 20 from below. The friction between the class 1 and the guide plate 21 is reduced,
The loss of the pressing force is reduced, and a stable pressing force can be obtained regardless of the accumulated amount of the paper sheets 1, so that the feeding roller 3 can perform the stable feeding.

[0037]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a single-denomination dispenser will be described below with reference to FIGS. 5 is an internal side view of a dispensing device showing an embodiment of the present invention, FIG. 6 is a plan view showing a storage box of the embodiment, FIG. 7 is a configuration diagram showing a discrimination part of the embodiment, and FIG. 8 is a drawing of the embodiment. Control block diagram, FIG. 9 and FIG.
Is a flowchart of the embodiment, and FIG. 11 is a diagram showing a motor speed and torque characteristic curve. The same reference numerals denote the same objects throughout the drawings.

The banknote 1a shown in FIG. 5 corresponds to the paper sheet 1 shown in FIGS. 1 to 4, and the pick roller 3A and the feed roller 3B shown in FIG.
1 corresponds to the feeding roller 3 in FIGS. 1 to 4, the optical sensor 11b in FIG. 5 corresponds to the first detecting means 11 in FIG. 1, and the potentiometer 56a in FIG. 7 corresponds to the second detecting means in FIG. Corresponding to the means 56, the main control unit 12 and the feed speed switching command unit 17 of FIG.
a corresponds to the control means 17 in FIG.

As shown in FIG. 5, the storage box 2b has a region A for storing the bills 1a to be fed out and a region B for the reject portion 7a, and is arranged vertically so that the region A is on the pressing plate 20b. The banknotes 1a accumulated in the above are pushed upward by the pressing plate 20b by a spring (not shown) (similar to the conventional example), and pressed against the pick roller 3A in the same manner as the method described in the conventional example, and the pick roller 3A and the feed roller 3B. Banknote 1a by rotating
Is configured to pay out.

As shown in FIG. 6, the guide plates 21A and 21B for guiding both ends of the bill 1a are provided with slopes so as to be separated from both ends of the bill 1a with respect to the pressing direction of the pressing plate 20b.

Referring again to FIG. 5, the pick roller 3A and the feed roller 3B are rotated by driving the stepping motor M3. Further, the feed roller 4A and a reference roller 50b described later
Is rotated by driving the stepping motor M4. Therefore, the feed speeds of the feed roller 4A and the reference roller 50b can be changed. In the normal state, the feed speed V ₂ of the feed roller 4A is set equal to or slower than the feed speed V ₁ of the pick roller 3A and the feed roller 3B (V ₂ ≤V ₁ ).

Immediately after the feed roller 3B, the conveying path 8b
An optical sensor 11b is provided so as to traverse. Further, a discrimination section 5b including a reference roller 50b and a detection roller 51b is provided on the conveyance path 8b at the rear stage of the feed roller 3B.
Immediately after the pool section 6a is provided. Therefore, the transport path 8b
Is set extremely short.

A shutter 90, which is normally closed, is provided above the pool section 6a, and the number of banknotes 1a corresponding to the number of dispensed bills 1a is provided in the pool section 6a.
When the pool is pooled, the shutter 90 opens in the horizontal direction, and the pool section 6a serves as a dispensing port 9a.

As shown in FIGS. 7 (a) and 7 (b), the discrimination section 5b
, The reference roller 50b rotates at the same speed as the feed roller 4A, one end of each of the levers 53a and 53b is fixed to the rotary shaft 57, and the detection roller 51b is rotatably attached to the tip of the lever 53a. Spring 58 connected to the tip of
It is urged by and is pressed against the reference roller 50b.

A potentiometer 56a is attached to the rotary shaft 57, and when the bill 1a passes between the reference roller 50b and the detection roller 51b, the potentiometer 56a turns the lever 53a,
The displacement amount of the detection roller 51b separated from the reference roller 50b by the rotation of 53b is detected as a change in voltage. The detection signal of the potentiometer 56a is sent to the displacement determination unit 28, which will be described later, and the displacement amount causes an obstacle (double feed and reference roller).
The state of 50b or the deformation of the detection roller 51b such as the bending of the shaft or the obstacle such as adhesion of foreign matter is determined.

Further, a lever 60 which is rotationally controlled is provided at the bottom of the pool section 6a, and when the bill 1a discriminated as a double feed by the discriminating section 5b is sent to the pool section 6a, a main control section 12 which will be described later is provided. Plunger magnet (hereinafter PM
(See FIG. 8) 32 is excited to rotate the lever 60 in the direction of the arrow, and the banknote 1a pooled up to that point and the double-feed banknote 1a are both dropped and stored in the reject unit 7a, and the banknote 1a is fed out. Start over.

FIG. 8 is a control block diagram showing a portion directly related to the present invention. In the figure, the main controller 12
Is a CPU and control program, and a stepping motor
Rotational speed of M3 and switching rotational speed of stepping motor M4 (feeding speeds V ₂ and V of feed roller 4A and reference roller 50b)
₃ ) A setting memory (none of which is shown) is provided, and each unit is controlled to perform feeding and conveyance of the bill 1a from the storage box 2b, jam detection and processing, discrimination and rejection, and the like.

The jam detection control unit 13 includes a timer 14, a time setting unit 15, a jam determination unit 16 and a feed speed switching command unit 17a.
If the bill 1a does not pass the optical sensor 11b within the time T ₁ set in the time setting unit 15 from the time when the bill 14a is started to be fed out by the pick roller 3A by the timer 14, the jam determination unit 16 is It is determined that a jam has occurred, and the feed speed switching command unit 17a determines the number of rotations of the stepping motor M4 (pulse per second: PPS) based on the jam detection signal.
The feed roller from 800 PPS to 300 PPS.
The main controller 12 is instructed to rotate the feed speed V _{2 of} 4 A from the low speed V ₃ to the low speed V ₃ . Also, after sending out the jam banknote 1a at a low feed speed V ₃ , the optical sensor is set within the set time T _1.
When 11b detects the passage of the bill 1a, the feed speed of the feed roller 4A is returned to the original speed V ₂ .

FIG. 11 shows a motor speed-torque characteristic curve. The torque (kg-cm) changes depending on the rotation speed (PPS) of the stepping motor M4, and a high torque is obtained in the low speed range. Therefore, by slowing down the motor speed and increasing the torque, the jam bill 1a can be easily fed.

The discrimination control unit 18 includes a timer 19 and a time setting unit.
24, a length determination unit 25, a voltage measurement unit 26, a voltage setting unit 27, and a displacement determination unit 28 are provided, and when the bill 1a passes between the reference roller 50b and the detection roller 51b, the passage time is measured to set the time. A function of detecting whether the length of the bill 1a is correct or not depending on whether it is within the range of T ₂ and T ₃ , a function of detecting an abnormality at the time of rolling contact between the reference roller 50b and the detection roller 51b, and a detection roller by the bill 1a. It has a function to detect double feed from the amount of displacement that pushes up 51b. The voltage setting unit 27 includes a reference roller 50b.
Alternatively, the voltage E ₁ for detecting foreign matter adhesion or shaft bending of the detection roller 51b and the voltage E ₂ as a limit value for detecting double feed are set.

Further, 29 and 30 are motor drivers, 31 is a magnet driver, and 33 is a sensor amplifier. With such a configuration and function, when the banknote 1a stored in the storage box 2b is paid out, even if the banknote 1a comes into contact with the guide plates 21A, 21B that are pressed by the pressing plate 20b and have a slope, friction will not occur. The contact state is alleviated and the frictional force is reduced as the pressing plate 20b moves upward.

Therefore, since the pressing force loss is reduced, it is not necessary to forcibly drive the pressing plate 20b by an external drive source, and the bill 1a is stabilized against the pick roller 3A even by a simple mechanism of pressing by a spring. The pressurized state is maintained, stable feeding can be performed, and the cost can be reduced.

Further, the pick roller 3A and the feed roller
Feeding speed of feeding roller 4A from feeding speed V ₁ by 3B
Since V ₂ is set to be slow, the feeding roller 4A does not pull out immediately after feeding, stable feeding is possible, and abrasion of the pick roller 3A is prevented. Moreover, the feed rate
Even if V ₂ is set to a slower speed, the transport path 8b is configured to be shorter, so the transport time can be shortened and the withdrawal process can be performed quickly.By shortening the transport path 8b, the components can be simplified and the cost can be reduced. Can be improved.

Next, the operations at the time of jam detection and bill discrimination will be described with reference to the flowcharts of FIGS. 9 and 10. 1) Jam detection and processing (FIG. 9) First, when the bill 1a is fed by the intermittent rotation of the pick roller 3A and the feed roller 3B, the jam detection control unit
The timer 14 of 13 starts time measurement, and the bill 1a is sent out in the direction of the feed roller 4A which rotates.

When the time measured by the timer 14 is within the set time T ₁ of the time setting unit 15 and the bill 1a passes through the optical sensor 11b, the jam determining unit 16 determines that the bill is normally delivered. Set time T jam detector 16 to pass through the banknote 1a is reached to _1, it is determined that a jam occurs, notifies the speed switching instruction unit 17a sends a detection signal.

The feed speed switching command section 17a is a main control section for rotating the stepping motor M4 at a low speed.
12, the main control unit 12 commands the motor driver 29 to operate the stepper motor M4 as described in the conventional example.
Once rotated in the opposite direction, the feed roller 4A jams the bill.
After removing 1a, the stepping motor M4 is rotated at a predetermined speed to rotate the feed roller 4A at a low speed V ₃ with respect to the previous feed speed V ₂ to feed the jam bill 1a.

When the feed roller 4A starts rotating, the timer 14 starts time measurement again, and when the optical sensor 11b detects the passage of the bill 1a within the set time T ₁ , a detection signal is sent to the feed speed switching command section 17a. .

The feed speed switching command unit 17a uses the original speed V ₂
The main control unit 12 is instructed to switch to. Then the main controller
12 commands the motor driver 29
The rotation speed of M4 returns to the original speed, the feed roller 4A is switched to the feed speed V ₂ , and the bill 1a is conveyed. (The bill 1a released from the jam is switched to the feeding speed V ₂ by the time it arrives at the discrimination unit 5b.) If the passage of the bill 1a by the optical sensor 11b is not detected even after the set time T _{1 has} passed at , Jam recovery is determined to have failed, and the main control unit 12 is instructed to stop the device due to a jam. (Note that there is also a method of attempting to repair a jam by repeating the above steps a predetermined number of times.) The main control unit 12 notifies a jam failure occurrence by a notifying unit (not shown).

2) Bill Discrimination and Processing (FIG. 10) First, when the power of the apparatus is turned on, the stepping motor M4 is driven to rotate the feed roller 4A and the reference roller 50b.

At this time, the potentiometer 56a rotates according to the displacement amount of the detection roller 51b, the voltage is measured by the voltage measuring unit 26, and when the voltage Ee set in the voltage setting unit 27 is reached, the displacement determining unit Reference numeral 28 determines that foreign matter is attached to the reference roller 50b or the detection roller 51b or that the shaft is bent, and sends an abnormality signal to notify the main control unit 12. Then, the main control unit 12 notifies the abnormality by the notifying unit.

If there is no displacement of the detection roller 51b or if there is no abnormality detected due to a small amount, the bill 1a is unwound from the storage box 2b, and the bill 1a conveyed through the conveying path 8b is sent to the discriminating section 5b, where the bill 1a is conveyed. When is sandwiched between the reference roller 50b and the detection roller 51b, the detection roller 51b is displaced by the thickness of the banknote 1a, the potentiometer 56a is rotated according to the displacement amount, and the voltage measuring unit 26 measures the voltage. The voltage is sent to the timer 19 as a detection signal and is notified to the displacement determination unit 28.

If the time until the timer 19 starts measuring the time and the voltage signal from the voltage measuring unit 26 disappears is between the set times T ₂ and T ₃ of the time setting unit 24, the length determining unit 25 determines that the banknote 1a has a normal length, and the banknote 1a is the pool section.
Pooled at 6a. Thus, are repeated until the requested number of withdrawals is pooled.

When the voltage signal from the voltage measuring unit 26 disappears before the length determining unit 25 reaches the set time T ₁ , the bill 1a is abnormally short, and even when the set time T ₂ has passed. When the voltage signal from the voltage measurement unit 26 continues, it is determined that the bill 1a has an abnormal length, and the main control unit 12 is notified. (When the bills 1a fed out are different denominations, the bills have different lengths, and when the bills are double feed, the upper and lower bills 1a are displaced and become longer.) On the other hand, the timer 19 measures time. Between, i.e. bills
While 1a is passing, the displacement of the detection roller 51b is measured as a voltage by the voltage measuring unit 26, and when the voltage exceeds the set voltage E ₁ of the voltage setting unit 27, the length of the bill 1a is abnormally long. In conformity with the detection, the displacement determination unit 28 determines that the passed banknote 1a is a double feed, and issues a double feed detection signal to notify the main control unit 12. And banknotes
1a is conveyed to the pool section 6a.

When the voltage is equal to or lower than the set voltage E _1, it is determined that one banknote 1a is normally fed out, and the banknote is pooled in the pool section 6a in the same manner as the flow. Abnormal length, or the main control unit 12 having received the double feed detection signal, after pooling the bill 1a to the pool unit 6a,
The magnetic driver 32 is instructed to excite the PM 32, and the lever 60 at the bottom of the pool portion 6a is rotated in the direction of the arrow as shown by the broken line in FIG. 5, so that all the banknotes 1a in the pool are rejected by the reject portion 7a. To drop and reject.

Then, the excitation of PM32 is released and the lever 60 is released.
Is returned to the original position, the bill 1a is fed again from the beginning, and the flow of is repeated. In this way, when a jam failure occurs in the dispensed banknote 1a, the jam restoration automatic feeds the jam by reducing the feed speed by the feed roller 4A for jam restoration to a low speed (V ₂ → V ₃ ). The success rate of forced repair can be increased. Therefore, it is possible to cope with unattended operation of the device on holidays and the like.

Further, with the reference roller 50b and the detection roller 51b in the discrimination section 5b being in contact with each other, the detection roller 51b
By measuring the amount of displacement of b with the potentiometer 56a, not only double feed can be detected when the bill 1a passes, but it can be constantly monitored even when the bill 1a does not pass. It is possible to detect the abnormality such as the axis bending of the roller 50b or the detection roller 51b or the adhesion of foreign matter, and to detect the abnormality that has occurred in the detection mechanism early, and to ensure the double feed detection accuracy of the banknote 1a. Occurrence of obstacles can be prevented.

In the above example, the guide plates 21a, 21b of the storage box 2b are
Although the case where a gradient is provided on the side where both ends in the longitudinal direction of the bill 1a are in contact with each other has been described, if a guide plate having a gradient is provided on the side where the side faces of the bill 1a contact, the pressing force of the pressing plate is further reduced. The effect of reducing the loss is obtained.

Further, in the above-mentioned example, the case of the withdrawal device of a single denomination has been described, but it can be similarly applied to the case of a bill handling device which processes a plurality of denominations.

[0069]

As described above, according to the present invention, in claim 1, the feeding speed of the feeding roller is set to the feeding speed of the feeding roller when the feeding abnormality of the paper sheet fed by the feeding roller is detected. By switching the speed to below the speed and conveying the paper sheet in which the feeding abnormality is detected by the feed roller, the success rate of the automatic forced restoration of the feeding abnormality can be significantly increased, and it can be used for unmanned operation on holidays of the device. can do.

In the second aspect, the feed speed of the feed roller is set to be equal to or lower than the feed speed of the feed roller, so that the paper sheet fed by the feed roller having the fast feed speed is conveyed by the feed roller having the slow feed speed. Therefore, it is possible to prevent the sheet from being pulled out by the feed roller, perform stable feeding, and prevent wear of the feeding roller.

In the third aspect of the invention, since the reference roller and the detection roller are in rolling contact with each other, the detection roller is moved in the direction away from the reference roller even when the sheet is not passing between the reference roller and the detection roller. For example, since the displacement amount is detected by the second detecting means, not only the double feed but also the abnormality caused in the detection mechanism, for example, the displacement amount due to the bending of the shaft of the reference roller or the detection roller or the adhesion of a foreign substance is detected. The abnormality can be detected early by detecting it, and by treating it, the double feed detection accuracy of the banknote 1a can be ensured, and the occurrence of withdrawal failure and the like can be prevented.

According to the fourth aspect, the paper sheets pressed by the pressing plate are guided by the guide plate which is formed with a gradient in the upward direction.
The friction between the paper sheets pressed from below by the pressing plate and the guide plate is reduced, the loss of the pressing force is reduced, and a stable pressing force can be obtained regardless of the amount of accumulated sheets. ,
Stable feeding can be performed by the feeding roller.

Moreover, since it is not necessary to forcibly drive the pressing plate by an external drive source, and a simple mechanism such as a spring allows stable feeding, the cost can be reduced. There is an effect.

[Brief description of drawings]

FIG. 1 is a principle configuration diagram corresponding to claim 1 of the present invention.

FIG. 2 is a principle diagram corresponding to claim 2 of the present invention.

FIG. 3 is a principle configuration diagram corresponding to claim 3 of the present invention.

FIG. 4 is a principle diagram corresponding to claim 4 of the present invention.

FIG. 5 is a side view of the inside of the dispensing device showing the embodiment of the present invention.

FIG. 6 is a plan view showing a storage box according to an embodiment.

FIG. 7 is a configuration diagram illustrating a discrimination unit according to an embodiment.

FIG. 8 is a control block diagram of the embodiment.

FIG. 9 is a flowchart (part 1) of the embodiment.

FIG. 10 is a flowchart (part 2) of the embodiment.

FIG. 11 is a diagram showing a motor speed and torque characteristic curve.

FIG. 12 is an internal side view of a conventional dispensing device.

FIG. 13 is a side view showing a feeding mechanism.

FIG. 14 is a front view showing a feed roller and a feed roller.

FIG. 15 is a plan view showing a conventional storage box.

FIG. 16 is a configuration diagram showing a discrimination unit.

[Explanation of symbols]

1 is a paper sheet, 1a is a banknote,
2,2a is a storage box, 3 is a feeding roller, 3a and 3A are pick rollers, 3b and 3B are feed rollers, 4,4a and 4A are feed rollers, 8,8a and 8b are conveyance paths, and 11 is the first detection roller. means,
11a, 11b, 55 are optical sensors, 12 is a main control unit, 17 is a control means, 17a is a speed switching command unit, 20, 20a, 20b are pressing plates, 21, 21a, 21b, 21A, 21B are guide plates, 50 , 50a and 50b are reference rollers, 51, 51a and 51b are detection rollers, 56 is a second detecting means, and 56a is a potentiometer.

Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location G07D 1/00 321 A 9145-3E 9/00 416 C 8111-3E

Claims (4)

[Claims] 1. Sheets are produced by rotation of a feeding roller (3) which is pressed against the forefront or the underside of the accumulated sheets (1).
A paper sheet handling device which feeds out (1) one by one and conveys it by a feed roller (4) provided at a stage subsequent to the feeding roller (3), wherein the paper fed out by the feeding roller (3) Leaves (1)
Detection means (11) for detecting an abnormal feeding of the paper and a control means (17) for controlling the feed speed of the feed roller (4)
And the control means (17) switches the feed speed of the feed roller (4) to a predetermined low speed based on the detection output of the first detection means (11) 1) A paper sheet handling device characterized by transporting. 2. Paper sheets are produced by rotation of a feeding roller (3) that is in pressure contact with the foremost surface or the lowest surface of the accumulated paper sheets (1).
A paper sheet handling device which feeds out (1) one by one and conveys it by a feed roller (4) provided at a stage subsequent to the feed roller (3), wherein the feed speed (V2 of the feed roller (4) ) Is the feeding roller
A paper sheet handling device characterized by being set to a feeding speed (V1) or less of (3). 3. Paper sheets by rotation of a feeding roller (3) which is in pressure contact with the front surface or the bottom surface of the accumulated paper sheets (1).
A paper sheet handling device which feeds out (1) one by one, and conveys the conveying path (8) by a feed roller (4) provided at a stage subsequent to the feeding roller (3), ) To rotate the reference roller (5
0) and a detection roller (51) elastically rolling contact with the reference roller (50)
And a second detecting means (56) for detecting a displacement amount when the detecting roller (51) moves in a direction away from the reference roller (50), and by the second detecting means (56) A paper sheet handling device characterized by determining an abnormal thickness of a paper sheet (1) according to a detected displacement amount. 4. The accumulated paper sheets (1) are stored in a storage box (2) and guided by guide plates (21) provided inside the side surfaces of the storage box (2) so as to face each other. The front surface or the bottom surface of the paper sheet (1) is pressed against the delivery roller (3) by the pressing plate (20), and the paper sheet (1) is delivered one by one by the rotation of the delivery roller (3). A paper sheet storage box, on the surface of the guide plate (21) facing the end of the paper sheet (1),
A paper sheet storage box, characterized in that a slope is provided so as to separate from the edge of the paper sheet (1) with respect to the pressing direction of the pressing plate (20).