JP2004094881A - Paper sheet carrying device and control method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper sheet carrying device and a control method therefor, which prevent actions of extracting paper sheets as much as possible. <P>SOLUTION: In the paper sheet carrying device 1 and a control method therefor which have a paper sheet carrying means (a paper money carrying means 4) comprising a carrying motor 11 for carrying paper sheets (paper moneys A) along a paper sheet carrying line (a paper money carrying line 2) and store the carried paper sheets in a stacker 19, operations of stopping driving of the carrying motor 11 and detecting it in this state by a paper money movement detection means 27 (an encoder 12) whether paper sheets on the paper sheet carrying line 2 are moved or not and driving the carrying motor 11 to store the paper sheets A in the stacker 19 in the case of detection of movement of paper sheets are repeated. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a paper sheet transporting device that is disposed inside a vending machine, a currency exchange machine, a game machine, or the like, and that transports bills or other paper sheets, and a control method thereof. The present invention relates to a paper sheet transporting device and a control method therefor.
[0002]
[Prior art]
In each machine body of vending machines, currency exchange machines, game machines, etc. (hereinafter referred to as "vending machines, etc."), bills inserted from bill insertion slots are generally guided along bill transport paths. In addition, a bill transporting device is mounted which determines the authenticity of the bill in the course of guiding the bill and guides and stores the bill identified as a genuine bill to a stacker downstream of the bill transport path.
[0003]
FIG. 4 is a conceptual cross-sectional view of a main part of a conventional bill transport device.
This conventional bill transporting device 31 controls bill transporting means 4 for transporting a bill A inserted from a bill insertion slot 2a along a substantially inverted U-shaped bill transporting path 2 and driving of the bill transporting means 4. Further, a control means (not shown) for storing the bill A conveyed along the bill conveyance path 2 in the stacker 19 is provided.
[0004]
Among these, the bill transporting means 4 is a bill transport comprising an endless bill transport belt 5 stretched along the bill transport path 2 and pulleys 6, 7, 8, 9 for rotating the bill transport belt 5. It is composed of a belt driving unit 10, a not-shown conveyance motor for applying a driving force to the bill conveyance belt driving unit 10, and an unillustrated encoder for detecting the number of drive pulses of the conveyance motor.
Reference numeral 13 in FIG. 4 denotes a reinforcing roller 13 that reinforces the bill carrying force of the bill carrying belt 5.
[0005]
In the banknote transport path 2, an entrance sensor 3 is disposed near the banknote insertion slot 2a on the upstream side, and an identification sensor 18 and a banknote detection sensor 15 are provided at a position where the banknote transport belt 5 is disposed. It is arranged.
The identification sensor 18 includes a photo sensor including a light emitting element and a light receiving element.
The bill detection sensor 15 is disposed on the bill transport path 2 downstream of the identification sensor 18. The bill detection sensor 15 is composed of a lever 16 rotatably supported via a shaft 17, and the tip of the lever 16 projects toward the bill transport path 2.
In the bill detection sensor 15, when the leading or trailing end of the bill A passes through the leading end of the lever 16, the leading or trailing end of the bill A rotates the lever 16 counterclockwise or clockwise through the shaft 17. Therefore, each rotation is detected and an ON signal or an OFF signal is sent to the control means.
Further, as shown in FIG. 4, the entrance sensor 3 is constituted by a sensor having the same structure as the above-mentioned bill detection sensor 15.
[0006]
A stacker 19 that accommodates a genuine bill A inside the bill transport path 2 is provided downstream of the bill detection sensor 15. Reference numeral 20 in FIG. 4 denotes a paper sheet reversing prevention lever for preventing the bill A stored in the stacker 19 from entering the bill conveyance path 2 again.
Further, in the bill transport path 2, a bill pressing means 22 including a pressing portion 22 a is provided downstream of the bill reversing prevention lever 20.
[0007]
On the other hand, insertion information of the bill A and other travel position information of the bill A are input to the control means from the entrance sensor 3, and travel position information of the bill A and authenticity identification information of the bill A are inputted from the identification sensor 18. Is entered. In addition, travel position information of the bill A is input to the control means from the bill detection sensor 15, and information on the number of drive pulses of the transport motor of the bill transport means 4 is input from the encoder of the bill transport means 4. . Further, transaction processing information of a vending machine or the like is also input to the control means.
[0008]
The control means determines whether the bill A is true or false based on the input true / false identification information of the bill A, and based on the input travel position information of the bill A, the bill in the bill transport path 2. It is determined whether or not the act of pulling A out to the bill insertion slot 2a side is performed (hereinafter, this determination is referred to as “pull-out check”), and the results of each of these determinations and the number of input drive pulses of the transport motor 11 are determined. The driving of the transport motor of the banknote transporting unit 4 and the driving of the banknote pressing unit 22 are controlled based on the information on the banknotes and various other input information.
[0009]
Next, a description will be given of a processing procedure of the control means for the operation of the conventional bill transport device 31.
[0010]
The control means determines whether or not the bill A has been inserted from the bill insertion slot 2a via the entrance sensor 3 in the standby state. When the control unit determines that the bill A has been inserted in this determination, the control unit starts the transport process of the bill A.
That is, the control means rotates the pulleys 6, 7, 8, and 9 of the bill transport belt driving means 10 clockwise by rotating the transport motor of the bill transport means 4 in FIG. Turn clockwise. Then, the bill A is transported upward along the bill transport path 2 by the driving force of the bill transport belt 5. The bill A passing through the pulley 6 is transported downward along the bill transport path 2.
[0011]
Further, after driving the transport motor of the bill transporting means 4 as described above, the control means determines whether or not the leading end of the bill A has reached the identification sensor 18 via the identification sensor 18, and determines whether the bill A If it is determined that the leading end of the bill A has reached the identification sensor 18, the identification information is read from the bill A via the identification sensor 18, and the authenticity of the bill A is determined.
[0012]
When it is determined that the banknote A is a counterfeit note, the transport motor of the banknote transport unit 4 is driven to rotate in the reverse direction, whereby the banknote transport belt 5 is rotated counterclockwise via the banknote transport belt drive unit 10. To transport the banknote A upstream of the banknote transport path 2. Then, the bill A is finally discharged from the bill insertion slot 2a.
[0013]
On the other hand, when it is determined that the bill A is a genuine bill, the bill motor A is further transported downstream of the bill transport path 2 while maintaining the forward rotation of the transport motor of the bill transport means 4, and It is determined via the identification sensor 18 whether or not the rear end has passed the identification sensor 18.
[0014]
Here, when the control means determines that the trailing end of the bill A has passed the identification sensor 18, the control means stops the drive of the transport motor of the bill transport means 4, thereby transferring the bill A to the bill transport path 2. To the so-called banknote escrow state that is temporarily held in the banknote. In the bill escrow state, the leading end of the bill A has already passed through the bill detection sensor 15.
[0015]
On the other hand, in this banknote escrow state, the control means determines whether or not a product purchase button of a vending machine or the like in which the banknote transport device 31 is installed is pressed, and when it is determined that the product purchase button is pressed. The control means determines that the normal transaction has been performed, discharges the merchandise from the vending machine or the like, and stores the banknote A temporarily held (escrowed) in the banknote transport path 2 in the stacker 19. Shift to (collection) operation.
[0016]
As this storing operation, first, the control means drives the transport motor forward again to rotate the bill transport belt 5 clockwise, thereby guiding the bill A further downstream and transporting the bill A via the encoder. The measurement of the number of drive pulses of the motor is started. Next, the control unit determines whether or not the rear end of the bill A has passed the bill detection sensor 15 from the start of driving of the transport motor. Here, when it is determined that the rear end of the bill has not passed through the detection sensor 15, this determination is repeated until it is determined that the bill has passed.
[0017]
On the other hand, when it is determined that the trailing end of the bill has passed the detection sensor 15, it is determined whether the number of drive pulses whose measurement has been started via the encoder has reached a predetermined number of pulses. Here, if the control means determines that the number of drive pulses has not reached the predetermined number of pulses, the control means does not indicate that the entire bill A is guided in the slit 22b of the bill pressing means 22. This determination is repeated until the number of drive pulses reaches the predetermined number of pulses. On the other hand, when the control means determines that the number of drive pulses of the transport motor has reached the predetermined number of pulses, the control means determines that the entire bill A is guided in the slit 22b of the bill pressing means 22. After the driving of the transport motor is stopped, the stacking operation, that is, the bill pressing means 22 is driven. Then, the bill A is pressed into the stacker 19 by the pressing portion 22a, whereby the bill A is stored in the stacker 19.
Further, in the conventional banknote transport device 31, the control unit performs the pull-out check of the banknote A via the entrance sensor 3, the identification sensor 18 or the banknote detection sensor 15 in the escrow state of the banknote A.
[0018]
The pull-out check of the bill A is performed by, for example, the respective travel position information of the bill A by the entrance sensor 3, the identification sensor 18 and the bill detection sensor 15 (specifically, each ON / OFF when the passage of the leading end or the trailing end of the bill A is detected). OFF information) has changed from the one immediately after the conveyance motor stopped, and if the traveling position information of any of the sensors has changed, the control means has performed the act of pulling out the banknote A. That is, it is determined that the pull-out check is abnormal. In addition, in the pull-out check, when the traveling position information of any of the sensors does not change, the control unit determines that the act of pulling out the bill A is not performed, that is, there is no abnormality in the pull-out check.
[0019]
When the control unit determines that there is a pull-out check abnormality, the control unit immediately drives the transport motor forward, thereby rotating the bill transport belt 5 clockwise to guide the bill A further downstream. In this way, the act of pulling out the bill A is prevented as much as possible, and the control means drives the transport motor for a predetermined time from the time of this determination and then stops.
[0020]
Further, in this bill transport device 31, the control means, after escrowing the bill A, also in the course of the accommodating operation for accommodating the bill A in the stacker 19, via the entrance sensor 3, the identification sensor 18 or the bill detection sensor 15, A withdrawal check is performed. If the control means determines that there is an abnormality in the pulling check, the transport motor is driven for a predetermined time from the time of the determination, whereby the bill A is guided further downstream to perform the pulling action of the bill A as much as possible. I try to prevent it. Further, the control means stops driving of the transport motor after the predetermined time has elapsed.
[0021]
It should be noted that the withdrawal check of the bill A, which is performed in the middle of the storing operation, is performed by, for example, the travel position information of the bill A by the entrance sensor 3, the identification sensor 18 and the bill detection sensor 15 (specifically, the leading or trailing end of the bill A) Is determined based on whether or not each of the ON / OFF information that has detected the passing of the sensor has changed from that immediately before the pull-out check. If the travel position information of any of the sensors has changed, it is determined that the pull-out check is abnormal. I do. In addition, in the pull-out check, if the traveling position information of any of the sensors does not change, the control unit determines that there is no abnormality in the pull-out check.
[0022]
In the conventional bill transport device 31, the control unit checks the opening / closing of the stacker 19 before the entrance sensor 3 determines whether or not the bill A is inserted in the standby state as described above. Next, it is checked whether the entrance sensor 3, the identification sensor 18, and the bill detection sensor 15 operate normally. Next, it is checked whether information communication can be accepted.
[0023]
[Problems to be solved by the invention]
By the way, in the above-mentioned conventional bill transport device 31, when the control means determines that there is a pull-out check abnormality of the bill A, the control means drives the transport motor for a predetermined time from the time of the determination and then stops to stop the bill. Since the A is prevented from being pulled out, there is a problem that the bill A is easily pulled out when the drive of the transport motor is stopped after the lapse of the predetermined time.
In addition, if the withdrawal of the bill A is performed after the commodity is paid out, there is also a problem that an illegal act of stealing the commodity without actually performing a transaction occurs.
[0024]
In addition, the problem with respect to such an act of pulling out the banknote A is not only the banknote transporting apparatus but also a sheet transporting apparatus (for example, a coupon ticket) that transports other sheets (for example, a coupon or a gift certificate). Transport device and gift certificate transport device).
[0025]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a paper sheet transporting device and a control method thereof that prevent a paper sheet extracting operation as much as possible.
[0026]
[Means for Solving the Problems]
In order to solve the above-described problems, a first invention of the present application has a paper sheet transport unit including a transport motor that transports a paper sheet along a paper sheet transport path, and transports the transported paper sheet. In a paper sheet transport device adapted to be accommodated in a stacker, a paper sheet movement disposed in the paper sheet transport path and detecting the movement of the paper sheet in a state where the driving of the transport motor is stopped. A detection unit; and a control unit that repeats an operation of driving the transport motor and storing the paper sheet in the stacker when the movement of the paper sheet is detected by the paper sheet movement detection means. It is characterized by doing so.
[0027]
Further, the second invention of the present application has a paper sheet transport unit including a transport motor that transports the paper sheets along the paper sheet transport path, and stores the transported paper sheets in a stacker. In the method for controlling the paper sheet transport device, a detection step of detecting that the paper sheet in the paper currency transport path moves while the drive of the transport motor is stopped, and Repeating the operation of driving the transport motor and storing the paper sheets in the stacker when the movement of the paper sheets is detected.
[0028]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, as an embodiment of a paper sheet transporting device and a control method therefor according to the present invention, a banknote transporting device that transports banknotes as an example of paper sheets and a control method thereof will be described in detail.
[0029]
FIG. 1 is a block diagram showing a schematic configuration of a control system of the bill transport device 1 according to the present invention, and the same parts as those in FIG.
[0030]
The banknote transporting device 1 according to the present invention includes the same inlet sensor 3 as the conventional banknote transporting device 31 (FIG. 4), the identification sensor 18, the banknote detection sensor 15, the banknote transporting unit 4 including the transporting motor 11, It has a bill pressing means 22, and further has a bill movement detecting means 27 and a control means 25.
The entrance sensor 3, the identification sensor 18, and the bill detection sensor 15, like the conventional bill transporting device 31, all perform a bill removal check (described above) (whether the bill A is being withdrawn or not). Function as means for detecting the
Further, the bill transporting means 4 includes an encoder 12 for detecting the number of drive pulses of the transport motor 11, similarly to the conventional bill transporting device 31.
[0031]
The bill moving means 27 is constituted by the encoder 12 of the bill transporting means 4. The bill movement detecting means 27 detects whether or not the bill A has moved in the bill transport path 2 when the transport motor 11 is stopped.
The encoder 12 is connected, for example, to a driven roller (not shown) that is driven by the rotation of the bill transport belt 5.
[0032]
Further, the control means 25 comprises a CPU (central processing unit), a peripheral circuit having a main storage device and an auxiliary storage device as main components.
The control unit 25 receives the insertion information of the bill A and other travel position information of the bill A from the entrance sensor 3, and also receives the travel position information of the bill A and the true / false identification information of the bill A from the identification sensor 18. Is done. Further, the travel position information of the bill A is inputted from the bill detection sensor 15 to the control means 25, and the pulse information (measured pulse number) by the rotation of the driven roller is inputted from the encoder 12. Further, transaction processing information of a vending machine or the like is also input to the control means.
[0033]
Then, the control means determines the authenticity of the bill A based on the inputted authenticity identification information of the bill A, and determines the authenticity of the bill A inputted through the entrance sensor 3, the identification sensor 18 and the bill detection sensor 15. A pull-out check of the bill A is performed based on each traveling position information.
Then, the driving of the transport motor 11 of the banknote transporting unit 4 and the driving of the banknote pressing unit 22 are controlled based on the judgment result of the bill A for the authenticity and the pull-out check and other various input information.
Further, in particular, the control unit 25 measures the number of drive pulses of the transport motor 11 based on the number of measurement pulses input via the encoder 12, and when the transport motor 11 is stopped, Is determined, and the driving of the transport motor 11 of the bill transporting means 4 and the driving of the bill pressing means 22 are controlled based on the measurement result and the determination result.
[0034]
Next, the operation of the above-described bill transport device 1 will be described, and the configuration will be described in more detail.
First, the operation of accommodating the bill A by the control means 25 of the bill transport device 1 will be described.
This storing operation is performed in the same manner as in the conventional banknote transporting device 31 in the banknote escrow state of the banknote A, by pressing a product purchase button of a vending machine or the like in which the banknote transporting device 1 is installed. Is performed when the controller 25 determines that a normal transaction has been performed, or when the control unit 25 determines that there is an extraction check abnormality in the extraction check in the banknote escrow state.
As will be described later, the accommodation operation is performed when the movement of the bill A in the bill conveyance path 2 is detected in a state where the conveyance motor 11 is stopped (including the standby state) during the accommodation operation of the bill A. Is also performed.
[0035]
FIG. 3 is a flowchart showing a processing procedure of the storing operation of the bill A by the control means 25 of the bill transporting device 1.
[0036]
The control means 25 performs the accommodation operation of the bill A by first rotating the stopped conveyance motor 11 forward to rotate the bill conveyance belt 5 clockwise, thereby guiding the bill A further downstream, and setting the timer The measurement of the drive time of the transport motor 11 is started (step 101).
Then, the control means 25 performs a pull-out check of the bill A (step 102). The withdrawal check in this step 102 is performed by, for example, each travel position information of the bill A by the entrance sensor 3, the identification sensor 18 and the bill detection sensor 15 (specifically, each ON / OFF when the passage of the leading end or the trailing end of the bill A is detected). OFF information) has changed from that immediately before the pull-out check, and if the travel position information of any of the sensors has fluctuated, the control unit 25 determines that there is a pull-out check abnormality of the bill A. If the traveling position information of any of the sensors does not change, it is determined that there is no abnormality in the bill A withdrawal check. Further, the control means 25 stores the results of these determinations as a history of the pull-out check.
Immediately before this step 102, the front end of the bill A passes through the entrance sensor 3, the identification sensor 18 and the bill detection sensor 15, and the rear end of the bill A passes through the entrance sensor 3 and the identification sensor 18; Since the entrance sensor 3 is OFF, the identification sensor 18 is OFF, and the bill detection sensor 15 is ON because the entrance sensor 3 has not passed through the detection sensor 15, the control is not performed in the pull-out check in step 102. The means 25 determines whether or not there is a change in the traveling position information.
[0037]
Further, the control means 25 determines whether or not the drive time of the transport motor 11 measured via the timer has reached a predetermined time (step 103). Note that, theoretically, the predetermined time, which is used as the criterion, is such that after the rear end of the bill A has passed the bill detection sensor 15 (after the bill detection sensor 15 is turned off), the whole bill A is slit by the bill moving means 22. The drive time is set to the drive time that has been reached when the vehicle has been guided into 22b.
[0038]
If it is determined in step 103 that the drive time of the transport motor 11 has not reached the predetermined time, the control unit 25 determines whether the bill detection sensor 15 has been turned off (step 104). If the control means 25 determines that the bill detection sensor 15 has not been turned off, the control means 25 determines that the rear end of the bill A has not passed through the bill detection sensor 15, It returns to 102.
[0039]
On the other hand, if the control means 25 determines in step 104 that the bill detection sensor 15 has been turned off, the control means 25 determines that the trailing end of the bill A has passed the bill detection sensor 15 and performs the pull-out check again. Is performed (step 105).
[0040]
The pull-out check in step 105 is also performed in the same manner as the pull-out check in step 102, and the control means 25 stores the determination result of the pull-out check as its history.
Immediately before this step 105, the front and rear ends of the bill A pass through the entrance sensor 3, the identification sensor 18, and the bill detection sensor 15, whereby the entrance sensor 3 is turned off, the identification sensor 18 is turned off, Since the bill detection sensor 15 is in the OFF state, in the pull-out check in step 105, the control unit 25 determines whether or not there is a change in the traveling position information.
[0041]
Next, the control means 25 determines again via the timer whether or not the drive time of the transport motor 11 has reached the predetermined time (step 106), and determines that the drive time has not reached the predetermined time. If so, it is determined whether the number of pulses measured by the encoder 12 has reached a predetermined number of pulses (step 107). The predetermined number of pulses serving as the criterion is theoretically set to the number of drive pulses of the transport motor 11 reached when the entire bill A is guided into the slit 22b of the bill moving means 22.
[0042]
In this step 107, when the measurement pulse of the encoder 12 has not reached the predetermined number of pulses, the number of drive pulses of the transport motor 11 has not reached the predetermined number of pulses. It is determined that it has not been guided into the slit 22b, and the process returns to step 105.
On the other hand, if it is determined in step 107 that the number of measurement pulses of the encoder 12 has reached the predetermined number of pulses, the number of drive pulses of the transport motor 11 has reached the predetermined number of pulses. It is determined that the sheet has been guided into the slit 22b, and is stopped by the transport motor 11 (step 108).
[0043]
Then, the control means 25 performs a stack operation for driving the bill pressing means 22 (step 109). Then, the pressing portion 22 a of the bill pressing means 22 presses the bill A toward the stacker 19, whereby the bill A is stored in the stacker 19.
[0044]
Next, the control unit 25 determines whether or not there is a history of a pull-out check abnormality from the pull-out check history stored in step 102 and step 105 (step 110). If it is determined that there is no history of the pulling check abnormality, the process shifts to the standby state.
On the other hand, if the control unit 25 determines in the step 110 that there is a history of the extraction check abnormality, then it determines whether or not the number of measured pulses of the encoder 12 has changed (changed) (step 112). .
[0045]
In this step 112, when the control means 25 determines that the number of measured pulses does not change, the banknote A in the banknote transport path 2 does not move while the transport motor 11 is stopped. It is determined that no withdrawal act has been performed. Then, the control means 25 determines whether or not the stacker 19 is expanded (step 113). If it is determined that the stacker 19 is expanded, the control means 25 removes the bill A in the stacker 19. It is determined that an operation such as removal is being performed, and the process proceeds to a predetermined process in a state where the stacker 19 is in the expanded state during standby.
[0046]
On the other hand, if the control means 25 determines in step 113 that the stacker 19 has not been expanded, it determines via a timer whether or not the expanded state has continued for a predetermined time (step 114). If it is determined that the duration has not reached the predetermined time, the process returns to step 112. The predetermined time serving as the criterion is arbitrarily set.
When the control unit 25 determines in step 114 that the continuation time of the expanded state of the stacker 19 has exceeded a predetermined time, the control unit 25 shifts to a standby state.
[0047]
On the other hand, when it is determined in step 112 that the number of measurement pulses of the encoder 12 has changed, it can be determined that the banknote A in the banknote transport path 2 has moved while the transport motor 11 is stopped, and thereby the banknote A It is determined that the withdrawal act of A has been performed, and the process proceeds to step 101.
[0048]
If it is determined that there has been a change in the number of measurement pulses of the encoder 12 in this manner, the processing shifts to the processing of step 101. If the driving of the transport motor 11 is stopped, the bill A in the bill transport path 2 is stopped. Is detected, and when it is determined that the act of pulling out the banknote A has been performed, the operation of driving the transport motor 11 to store the banknote A in the stacker 19 is repeated. In the stopped state, the possibility that the bill A is easily pulled out can be prevented as much as possible.
In addition, since it is possible to prevent the withdrawal of the bill A after the product is paid out, it is possible to prevent as much as possible the fraudulent act of stealing the product without actually performing the transaction. it can.
[0049]
In step 103, when the control unit 25 determines that the drive time of the transport motor 11 has passed the predetermined time via the timer, the control unit 25 stops the drive motor 11 (step 111). The reason why the conveyance motor 11 is stopped in this way is that the predetermined time is theoretically set to a drive time that is reached after the trailing end of the bill A has passed through the bill detection sensor 15, If the drive time of the transport motor 11 has passed for a predetermined time before it is determined that the end has passed the bill detection sensor 15, the bill A has not been transported downstream of the bill transport path 2; This is because there is a risk that the bill A is being pulled out.
[0050]
Therefore, the control unit 25 proceeds to step 112 after step 111, and thereby repeats the operation of storing the bill A. In this manner, the operation of pulling out the banknote A in the banknote transport path 2 that is continuously performed from the state of the forward rotation drive before the drive of the transport motor 11 is stopped (before step 111), and the operation of the banknote A It is possible to prevent as much as possible the above-mentioned fraudulent acts that occur when the withdrawal action is performed after the product is paid out. Step 112 prevents the act of pulling out the banknote A in the banknote transport path 2 immediately after stopping the transport motor 11 and the above-described fraudulent act that occurs when the banknote A is pulled out after the product is paid out. It goes without saying that it can be done.
[0051]
If the control unit 25 determines in step 106 that the drive time of the transport motor 11 has passed the predetermined time via the timer, the drive motor 11 is stopped (step 111). The reason why the transport motor 11 is stopped in this way is that the predetermined time is theoretically set to a drive time that has reached when the entire bill A is guided into the slit 22b of the bill moving means 22. If the drive time of the transport motor 11 has passed a predetermined time before it is determined that the entire banknote A has been guided to the slit 22b, the banknote A is not guided to the slit 22b. This is because there is a possibility that the pulling out operation is performed.
[0052]
Therefore, the control unit 25 proceeds to step 112 after step 111, and thereby repeats the operation of storing the bill A. In this manner, the operation of pulling out the banknote A in the banknote transport path 2 that is continuously performed from the forward rotation state before the drive of the transport motor 11 is stopped (before step 111), and this banknote A Can be prevented as much as possible when the withdrawal of the product is performed after the product is paid out. Step 112 prevents the act of pulling out the banknote A in the banknote transport path 2 immediately after stopping the transport motor 11 and the above-described fraudulent act that occurs when the banknote A is pulled out after the product is paid out. It goes without saying that it can be done.
[0053]
Next, the operation of the banknote transport device 1 in the standby state will be described.
FIG. 3 is a flowchart illustrating a processing procedure in a standby state of the control unit 25 included in the banknote transport device 1.
[0054]
In the standby state of the banknote transport device 1, the transport motor 11 stops driving, but the control unit 25 first determines whether or not the number of measured pulses by the encoder 12 has changed (step 201).
If it is determined in step 201 that the number of pulses has changed, it is determined that the bill A in the bill transport path 2 has moved in the standby state, and that the bill A has been pulled out. I do. For example, the case where the banknote A once stored in the stacker 19 is pulled out and guided to the banknote transport path 2 and the banknote A is moved in the banknote transport path 2 by the withdrawal action of the banknote A, in this case, Corresponds to. When the control unit 25 determines that such a bill A is being withdrawn, the control unit 25 proceeds to step 101 (FIG. 2), and thereby repeats the operation for storing the bill A.
In this way, the act of pulling out the banknote A after stopping the transport motor 11 can be further prevented. Further, when the standby state in which the transport motor is stopped is shifted after the goods are paid out, as described above, the banknotes A once stored in the stacker 19 are moved to the banknote transport path. 2 can be prevented from being pulled out, and the fraudulent act that occurs when the bill A is withdrawn after the commodity is paid out can be prevented as much as possible.
[0055]
On the other hand, when the control unit 25 determines in step 201 that there is no change in the number of measurement pulses of the encoder 12, in the standby state, there is no movement of the banknote A in the banknote transport path 2 in the standby state. The bill A is not withdrawn, for example, the bill A once stored in the stacker 19 is withdrawn and guided to the bill transport path 2, and the bill A is pulled out of the bill transport path 2 by the withdrawal action. The control unit 25 determines that the state in which the bill A is moving has not occurred, and then checks whether the stacker 19 has been opened or closed (step 202), and thereafter, the entrance sensor 3 and the identification sensor 18 Then, it is checked whether the bill detection sensor 15 operates normally (step 203).
Then, the control means 25 checks whether or not communication of information can be accepted (step 204), and then determines whether or not the entrance sensor 3 is turned on (step 205). If it is determined in step 205 that the entrance sensor 3 is not ON, the process returns to step 201. When it is determined in step 205 that the entrance sensor 3 has been turned ON, the control means 25 determines that the banknote A has been inserted from the banknote insertion slot 2a and the leading end of the banknote A has passed through the entrance sensor 3, and The process shifts to the above-described transport process for transporting along the transport path 2.
[0056]
In the bill transporting apparatus 1 of the above embodiment, the bill movement detecting means 27 has been described as being configured by the encoder 12 of the bill transporting means 4. However, the bill moving means 27 constituting the bill transporting apparatus of the present invention is The detection means is not limited to the encoder 12 of the conveyance means 4 and may be any detection means that is disposed in the paper money conveyance path 2 and detects the movement of the paper money A in a state where the driving of the conveyance motor 11 is stopped. The movement detecting means is a sensor that is disposed in the bill transport path 2 and detects the movement of the bill A while the drive of the transport motor 11 is stopped, and is independent and independent of the encoder 12 of the bill transport means 4. It may be constituted by a provided sensor.
[0057]
Although the embodiment has been described with respect to the banknote transport device, the present invention relates to a banknote transport device (e.g. Needless to say, the present invention can also be applied to a coupon ticket conveying device and a gift certificate conveying device. Further, when the present invention is applied to the above-described paper sheet transport device, similar to the case of the above-mentioned paper currency transport device 1, when the paper sheet is pulled out or the paper sheet is pulled out after the commodity is paid out, The resulting fraudulent acts can be prevented as much as possible.
[0058]
【The invention's effect】
As described above, the paper sheet transport device of the present invention detects whether a paper sheet in the paper sheet transport path has moved while the driving of the transport motor is stopped, and When the movement of the leaves is detected, the operation of driving the transport motor to store the paper sheets in the stacker is repeated, so that when the transport of the paper motor is stopped, the paper sheets are pulled out. In addition, the paper sheets can be prevented from being pulled out as much as possible.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a schematic configuration of a control system of a bill transporting device which is an embodiment of a paper sheet transporting device according to the present invention.
FIG. 2 is a flowchart showing a processing procedure in a storing operation of the bill transport device of FIG. 1;
FIG. 3 is a flowchart showing a processing procedure in a standby state of the bill transport device of FIG. 1;
FIG. 4 is a conceptual cross-sectional view of a main part of a banknote transporting device which is an embodiment of a conventional paper sheet transporting device.
[Explanation of symbols]
1. Bill transfer device (sheet transfer device)
2… Bill transport path (sheet transport path)
4 ... Bill transfer means (paper sheet transfer means)
11: transport motor
12 ... Encoder (paper sheet movement detecting means)
19 ... Stacker
25 ... Control means
27 ... Bill movement detection means (sheet movement detection means)
A: Banknotes (sheets)

Claims (6)

In a paper sheet transport device having a paper sheet transport unit including a transport motor that transports the paper sheets along the paper sheet transport path, and the transported paper sheets are stored in a stacker,
A sheet movement detecting unit disposed on the sheet conveyance path and detecting movement of the sheet in a state where the driving of the conveyance motor is stopped,
When the movement of the paper sheet is detected by the paper sheet movement detection means, a control means for driving the transport motor to repeat the operation of storing the paper sheet in the stacker is provided. A paper sheet transport device characterized by the above-mentioned. Further comprising a paper sheet pull-out detecting means for detecting whether or not the paper sheet pull-out action is performed,
When the control means determines that the action of pulling out the banknote is being performed through the paper sheet pull-out detection means, the movement of the paper sheet is detected by the paper sheet movement detection means. The paper sheet transporting device according to claim 1. The paper sheet transport device according to claim 1, wherein the paper sheet movement detection unit detects the movement of the paper sheet in a standby state. In a control method of a paper sheet transport device, the paper sheet transport device includes a paper sheet transport unit including a transport motor that transports the paper sheets along a paper sheet transport path, and stores the transported paper sheets in a stacker. ,
A detecting step of detecting that the paper sheet in the bill transport path moves while the drive of the transport motor is stopped,
A step of repeating the operation of driving the transport motor and storing the sheets in the stacker when the movement of the sheets is detected in the detection processing. A method for controlling a leaf transport device. The method according to claim 4, wherein the detecting step is performed when it is determined that the bill is being withdrawn. The method according to claim 4, wherein the detecting step is performed in a standby state.

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