JPH09190559A - Paper money discrimination device and paper money extraction means detection method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent illicit extraction of paper money by attaching rotatably a rotor to a carrier path and winding an extraction means around the rotor. SOLUTION: An extraction means such as a string, thread, tape, etc., is connected to the paper money that passed through an outlet 5 and extended to a carrier path 3 and also into a slit 41 of a rotor 40. Thus, the extraction means is held in a small gap formed between the rotor 40 and a cover member 47 and also wound around the outer circumference of the rotor 40 while the rotor 40 has one rotation. When the extraction means is held between the rotor 40 and the member 47, the rotation of the rotor 40 is disturbed by the extraction means. As result, the pulse of a rotor encoder has the abnormality or the rotational speed of the rotor 40 is reduces compared with its speed set before the paper money is carried. Thereby, it is possible to detect the presence of the extraction means and also to prevent the illicit extraction of paper money and the illicit use of a paper money discrimination device.

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,
In particular, a string connected to the bill conveyed in the bill validator,
The present invention relates to a banknote discriminating apparatus that prevents illegal withdrawal of banknotes by a withdrawing unit such as a tape, a banknote withdrawing unit detection method and a banknote discriminating apparatus that can detect the withdrawing unit.

[0002]

2. Description of the Related Art For example, Japanese Utility Model Laid-Open No. 63-89181 discloses a bill withdrawal prevention device for a bill validator. As shown in FIG. 9 and FIG. 10, the pullout prevention device is configured such that the upright portion 202 of the frame 201 extends from the insertion opening 207.
The banknote inserted between 203 is the belt 211 and the roller 2
The tongue piece 209 provided on the frame 201 and the tongue piece 2 provided on the plate 205 are further conveyed by the bill 12.
Pass between 10. When passing through the tongue pieces 209 and 210, the bill is slightly bent, but does not hinder the transfer. After the bill has passed through the discharge port 208, if the fishing line or the like connected to the bill is manually pulled out from the insertion port 207, the bill is engaged with the tongue pieces 209 and 210 to prevent the bill from being illegally pulled out. To be done. Also, the actual Kaihei 4-36677
The gazette discloses a banknote withdrawal prevention device which is provided with a stopper projecting into the banknote passage of the banknote discriminating device and rotates outside the banknote passage based on a discrimination signal of the bill discriminating device.
With this bill removal prevention device, unless a true bill passes,
The stopper is not rotated to the outside of the bill passage, and the pullout prevention effect is obtained.

[0003]

However, the bill withdrawal prevention device shown in FIGS. 9 and 10 cannot detect the withdrawal means such as a string or tape connected to the bill. Further, if the protrusion amount of the tongue pieces 209 and 210 is increased, the bills are not transferred to the tongue pieces 2 while the banknote is being conveyed by the belt 211.
Since it is difficult to convey the bill by locking it with 09 or 210, it is not possible to secure a large protrusion amount of the tongue pieces 209 and 210. Therefore, if the pulling means such as fishing line attached to the bill is strongly pulled, the bill can be illegally pulled out, and even if the bill can be prevented, the tongues 209 and 210 may damage the bill. Unauthorized removal of banknotes cannot be detected even by the removal prevention device disclosed in Japanese Utility Model Laid-Open No. 4-36677. Therefore, an object of the present invention is to provide a bill discriminating apparatus which prevents a bill from being illegally taken out by rotatably attaching a rotating body to a conveying passage and winding a drawing means around the rotating body. Moreover, this invention detects the withdrawal means connected to the banknote conveyed in the banknote discriminating apparatus by rotating the rotary body after receipt of the banknote and measuring the rotational speed of the rotary body, thereby illegally removing the banknote. It is an object of the present invention to provide a bill withdrawing means detection method and a bill discriminating device for preventing the above-mentioned problems.

[0004]

A bill discriminating apparatus according to the present invention conveys a case, a conveying passage formed in the case and through which bills pass, and a bill inserted from an entrance provided at one end of the conveying passage. The transport device has a transporting device that transports to an exit provided at the other end of the transporting path along the transporting path, and a discrimination sensor disposed adjacent to the transporting path. This bill discriminating device judges the authenticity of a bill based on the output of a discriminating sensor, a rotating body that is provided with a slit that coincides with a conveyance path at a matching position and is rotatably mounted, a rotating body driving device that rotates the rotating body, and a discrimination sensor. A discrimination control circuit for controlling the rotating body driving device is also provided. After the bill passes through the slit of the rotator, the discrimination control circuit rotates the rotator by the rotator driving device and winds the withdrawing means connected to the bill around the outer circumference of the rotator.

In the embodiment of the present invention, the taper portion for guiding the bill is formed in the slit of the rotating body. A lever that fits into a notch formed on the outer peripheral portion of the rotating body is provided, and the lever positions the rotating body at the alignment position and rotates the rotating body only in one direction.

The bill withdrawing means detecting method according to the present invention is
The bill inserted into the entrance is moved along the conveying passage by the conveying device, the discrimination output is taken out by the discrimination sensor attached along the conveying passage, and the bill is passed through the slit of the rotating body rotatably arranged in the conveying passage. The process of moving the bill, the authenticity of the bill is determined by the bill validator, the process of sending the bill from the bill transport device to the stacker device for storing the bill when it is determined to be a true bill, and the bill after passing through the transport passage, Rotating the rotating body by a certain angle from the alignment position where the slits coincide with the transport passage, and measuring the rotation speed or rotation time of the rotating body, and comparing with the normal rotation speed or rotation time of the rotating body, Detecting the presence of the drawing means when the rotation speed of the rotating body is slow or when the rotation time is long.

According to the embodiment of the present invention, when a bill is inserted into the entrance, the rotating body is rotated to the alignment position where the slits coincide with the conveying passage, and the bill is not conveyed to a predetermined angle range. The process of pre-storing the rotation time or rotation speed of the body, the process of detecting the alignment position where the slit coincides with the transport passage, the positioning of the rotor at the alignment position, and the blocking of the rotation of the rotor in the alignment position in one direction. process,
The process of measuring the pulse width of the pulse generated from the encoder connected to the rotating body motor that rotates the rotating body or counting and rotating the time interval of the pulse generated from the encoder connected to the rotating body motor that rotates the rotating body It may include the step of measuring the rotation time of the body.

Further, according to the embodiment of the present invention, the pulse width and the time interval of the pulse generated from the encoder connected to the rotating body motor for rotating the rotating body by a predetermined angle are counted before the bill is conveyed. The process of measuring the rotation speed or rotation time of the rotating body in advance, the process of storing the rotation speed of the rotating body measured in advance, the bill inserted in the entrance is moved along the transport passage, and the bill is identified during the movement. And the process of discharging from the exit of the transport passage, and the pulse width and time interval of the pulse generated from the encoder connected to the rotary motor by rotating the rotary body by a predetermined angle after discharging the bill from the exit The step of counting the rotation speed or rotation time of the rotating body later, the step of storing the rotation speed or rotation time of the rotating body measured later, and the rotation speed of the rotating body previously measured When the rotation time is compared with the rotation speed or rotation time of the rotating body measured later, when the rotation speed or rotation time of the rotating body measured later is larger than the rotation speed or rotation time of the rotating body measured in advance by a certain range or more. Detecting the presence of the withdrawal means.

When the time required for the rotating body to make one rotation later is longer than the time required for the rotating body to make one rotation a certain time or more, the presence of the drawing means may be detected. Also,
If the time required for the rotator to rotate 1.25 times later is longer than the time required for the rotator to rotate 1.25 times more than a predetermined time, the presence of the drawing means may be detected.

The banknote discriminating apparatus according to the present invention is provided with a rotatably mounted rotatably member having a slit which coincides with the conveying path at the aligning position, a rotator driving device for rotating the rotator, and a banknote output by a discriminating sensor. And a discriminating control circuit for controlling the rotating body drive device, an encoder operatively connected to the rotating body drive device for detecting the rotation speed of the rotating body, and a cover member surrounding the rotating body and attached. It has and. In the embodiment of the present invention, at least one step portion corresponding to each other is formed on each of the rotating body and the cover member.

When the bill is passed through the discrimination sensor and the slit of the rotating body by the conveying device and then the rotating body is rotated,
It is possible to prevent the illegal withdrawal of the bill by winding the withdrawing means such as a string, a thread or a tape connected to the bill around the rotating body. Further, due to the rotation of the rotating body, the pulling-out means is forced into the extremely small gap between the rotating body and the guide member, so that the rotation of the rotating body is obstructed and the rotation speed of the rotating body is reduced. Therefore, the rotation speed in the normal state without the pulling-out means or the rotation time required to rotate to the predetermined angle, and the rotation speed of the rotating body in the state where the pulling-out means is connected or the rotation time to rotate to the predetermined angle, In comparison, when the rotating speed of the rotating body is slow or the rotating time is long, it is possible to detect that the extracting means is present around the rotating body. A lever that fits into a notch formed on the outer periphery of the rotating body positions the rotating body at an alignment position where the slit of the rotating body aligns with the transport passage, and the rotating body rotates in only one direction, so alignment It is not possible to forcibly rotate the rotating body in the position and remove the extraction means from the rotating body.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a bill discriminating apparatus according to the present invention will be described below with reference to FIGS. As shown in FIG. 1, the bill validator 1 includes a case 2 and a case 2.
And a transport passage 3 formed therein and through which bills pass. The transfer passage 3 has an inlet 4 provided at one end of the case 2.
And the outlet 5 provided at the other end. The conveyance device 6 that conveys banknotes along the conveyance path 3 includes a conveyance motor 7, a pinion 9 attached to an output shaft 8 of the conveyance motor 7, an intermediate large gear 10 connected to the pinion 9,
Intermediate small gear 12 connected to shaft 11 of intermediate large gear 10
, A drive gear 13 connected to the intermediate small gear 12, and a drive pulley 15 connected to a shaft 14 of the drive gear 13. Drive belt 16 wound around drive pulley 15
Is also wound around the pulley portions of the three rollers 17, 18 and 19 and the pulley 20. Drive belt 1 on pulley 20
6 is wound, and the drive belt 16 is partially diverted downward. Further, the drive belt 16 is pressed by the tension pulley 21. One end of the support lever 22 is rotatably attached to the frame 2 by a shaft 22a, and the tension pulley 21 is rotatably attached to the other end of the support lever 22. One end of the torsion spring 23 wound around the shaft 22a is locked to the support lever 22, and the torsion spring 23
The other end of is locked to the pin 24. The support lever 22 is biased by a torsion spring 23, and the tension pulley 21
Presses the drive belt 16 inward to apply tension.
The pressing rollers 25 to 27 are rotatably arranged so as to face the rollers 17 to 19, and the banknotes to be conveyed are transferred to the rollers 17 and 1.
It is sandwiched between the rollers 8 and 19 and the pressing rollers 25 to 27 and reliably conveyed toward the outlet 5 along the conveying passage 3.

The transport encoder 30 attached to the output shaft 8 of the transport motor 7 is provided with a disk 31 having a plurality of notches 32 formed at regular angular intervals in the circumferential direction. The transport encoder 30 includes a photocoupler (not shown), detects that light generated by the photocoupler is transmitted through the cutout portion 32, and sends an output to the discrimination control circuit 50 shown in FIG. 5 configured by a microcomputer. The discrimination control circuit 50 can detect the rotation speed and rotation speed of the carry motor 7 by counting the output of the photocoupler per unit time.

Although not shown, the discrimination control circuit 50 receives the outputs of the optical discrimination sensor 34 and the magnetic discrimination sensor 35 to determine whether or not the bill is a true bill, and when the bill is a true bill, the output of the exit sensor 36 is received. After that, the rotating body motor 71 is driven, and when it is not determined that the bill is a true bill, the determining means that reverses the conveyance motor 7 to return the bill to the entrance 4, the pulse generating means that generates the reference pulse, and the rotating body 40. During the rotation, the reference pulse number of the pulse generating means is counted to store the rotation time and the rotation speed of the rotating body 40 before and after the bill is conveyed, and before and after the bill is conveyed and stored in the storage means. When the rotation time or the rotation speed of the rotation body 40 after the banknotes are conveyed is compared with the rotation time or the rotation speed of the rotation body 40 before the conveyance of the banknotes is outside the reference range. alarm And a comparing means for generating a force.

As shown in FIG. 1, an entrance sensor 33 for detecting a bill inserted from the entrance 4 is attached near the entrance 4 and adjacent to the transport passage 3. Also, for example, the actual Kaihei 4
As disclosed in Japanese Patent Publication No. 36677, the entrance sensor 33
An optical discrimination sensor 34 and a magnetic discrimination sensor 35 are attached to the back of the paper, and an outlet sensor 36 is attached near the outlet of the transport passage 3. The entrance sensor 33 is composed of, for example, a photocoupler including a light emitting diode and a light receiving transistor. The optical discrimination sensor 34 is a photo coupler capable of recognizing an optical pattern (optical characteristic) of a bill by reflecting infrared rays generated from a light emitting unit on the surface of the bill or transmitting the bill and then receiving light. The magnetic discrimination sensor 35 is a magnetic head or a Hall sensor that detects a magnetic component (magnetic characteristic) of ink printed on a bill. The outputs of the optical discrimination sensor 34 and the magnetic discrimination sensor 35 are respectively the discrimination control circuit 5
Sent to 0. The outlet sensor 36 includes a bend lever 37 rotatably mounted on a shaft and a photocoupler 38 mounted adjacent to the bend lever 37. When the bill in the transport path 3 comes into contact with one end of the bend lever 37, the bend lever 37 is rotated by the bill, so that the other end of the bend lever 37 blocks or transmits the light of the photocoupler 38. Therefore, the photocoupler 38 of the exit sensor 36 can detect the passage of the front end and the rear end of the bill and output the output to the discrimination control circuit 50. A stacker device (not shown) arranged adjacent to the outlet 5 sequentially stores the banknotes discharged from the outlet 5 in a stacked state.

A rotating body 40 is rotatably mounted between the roller 18 and the outlet sensor 36, and is substantially perpendicular to the lengthwise direction of the conveying passage 3. As shown in FIGS. 1 and 3, the rotating body 40 is formed in a substantially cylindrical shape, and has a slit 41 along the length direction of the cylindrical body, a pair of protrusions 42 and 43 formed at both ends, and an outer peripheral portion. A plurality of steps 44 formed
And When the slit 41 is aligned with the transport passage 3, the bill can be transported through the transport passage 3 and the slit 41 toward the outlet 5. The slit 41 is
It has a tapered portion 46 that narrows in the transport direction. The taper portion 46 smoothly guides the bill passing through the slit 41 toward the exit passage 5 to the transport passage 3, prevents jamming and reliably transports the bill, and also enables the rotating body 40 formed of resin to be conveyed. Die cutting at the time of manufacturing can be facilitated. The protrusions 42 and 43 are rotatably supported by the bearings 42a and 43a. The rotating body 40 has a protrusion 4
A gear 45 is mounted adjacent to 3. A pair of cover members 47 having a shape complementary to the stepped portion 44 of the rotating body 40 are provided around the rotating body 40 so as to surround the outside of the rotating body 40. The pair of cover members 47 form the transport passage 3 and are arranged at regular intervals. A small gap 47a of about 0.5 mm is formed between the rotating body 40 and the cover member 47, and when the bill passes through the transport passage 3, the gap 47a is formed.
A stepped portion 44 is formed to prevent the jamming from occurring due to invasion into the. As shown in FIG. 2, when the rotating body 40 is in the initial position, the notch portion 65 formed in a part of the outer periphery of the rotating body 40 has a claw portion of the lever 60 rotatably supported by the shaft 62. 61 engages. Therefore, the rotating body 4
0 indicates the claw portion 61 and the notch portion 6 by the rotating body driving device 70.
When the claw portion 61 and the notch portion 65 are engaged with each other by rotating only in the clockwise direction in FIG. 2 where the engagement with 5 is released, the rotating body 40 is not rotated in the counterclockwise direction. The lever 60 is
One end 60 is provided so that the claw portion 61 always engages with the cutout portion 65.
It is urged counterclockwise via the support shaft 62 by the elastic force of the spring 63 connected to a. The claw portion 61 has a cutout portion 65.
At the initial position of the rotating body 40 that engages with, the slit 41 of the rotating body 40 is aligned with the transport passage 3. The claw portion 61 is the notch portion 6
A position sensor 66 for detecting the position of the lever 60 is attached to the lower portion of the lever 60 in order to detect the state in which the lever 60 is locked. A protrusion 64 is provided on the other end of the lever 60, and an external force is applied to the protrusion 64 by a finger or the like to tilt the lever 60 in the clockwise direction in FIG. 2 so that the engagement between the cutout portion 65 and the claw portion 61 can be released. The withdrawing means connected to the bill is the rotating body 40.
When it wraps around the
The engagement between the claw portion 61 and the claw portion 61 is released, and the rotating body 40 is rotated to remove the pulling-out means.

When the rotating body 40 is stopped at the initial position,
When the rotating body 40 is rotated clockwise by the rotating body drive device 70 and the claw portion 61 of the lever 60 engages with the notch portion 65, this engagement state is detected by the position sensor 66, and the operation of the rotating body drive device 70 is performed. Is stopped. At this time, the rotating body 40 stops at the position overrun from the initial position. In order to securely dispose the rotating body 40 at the initial position where the claw portion 61 is locked in the cutout portion 65, the rotating body drive device 70 reverses the rotating body 40 for a short time, and the cutout portion 65 engages with the claw portion 61. Accurately stopped in the initial position. Therefore,
The rotating body 40 cannot be reversed in the initial position.

The rotating body driving device 70 shown in FIG. 2 for rotating the rotating body 40 includes a rotating body motor 71 and a rotating body motor 71.
72 and pinion 7 attached to the output shaft of
The large gear 73 meshing with the second gear 73, the small gear 75 fixed to the shaft 74 of the large gear 73, the small gear 75 and the gear 4 of the rotating body 40.
5 and an intermediate gear 76 meshing with the gear 5. When the rotating body motor 71 is driven, the claw portion 61 of the lever 60 fitted in the cutout portion 65 of the rotating body 40 is pushed out to the cutout portion 65 as the rotating body 40 rotates. As a result, the engagement between the notch portion 65 and the claw portion 61 is released, and the lever 60 moves the spring 63.
Since it rotates clockwise in FIG. 2 against the elasticity of
The rotating body 40 rotates clockwise. When the rotating body 40 makes one rotation, the notch portion 65 is engaged with the notch portion 65 by the elastic force of the spring 63, and the slit 41 of the rotating body 40 is moved to the transport passage 3.
The rotator 40 is positioned at the initial position aligned with. When the rotating body motor 71 stops, the rotating body 40 continues to rotate normally due to its inertial force, so that the rotating body motor 71 is driven to rotate in the reverse direction so that the notch portion 65 and the claw portion 61 of the lever 60 are securely engaged. As a result, the rotating body 40 can be accurately returned to the initial position, and thus the position sensor 66 can accurately detect the position of the lever 60. The rotary encoder 77 attached to the output shaft of the rotary motor 71 has a disk 7 having a plurality of cutouts 79 formed at regular angular intervals in the circumferential direction.
8 is provided. The rotary encoder 77 includes a photocoupler (not shown), and light generated from the photocoupler is notched by the cutout portion 7.
9 to detect the interruption, and the discrimination control circuit 50
Send output to. The discrimination control circuit 50 can detect the number of rotations and the rotation speed of the rotating body motor 71 by counting the output of the photocoupler per unit time.

Next, the operation of the discrimination control circuit 50 shown in FIG. 5 will be described with reference to FIG. Proceeding from step 100 to step 101, the discrimination control circuit 50 stands by to detect whether a bill is inserted into the entrance 4. When a bill is inserted into the entrance 4 provided at one end of the transport passage 3, the entrance sensor 33 detects the insertion of the bill and sends an output to the discrimination control circuit 50. Next, in step 102, the discrimination control circuit 50 sends an output to the rotating body motor 71 to rotate the rotating body 40 once at an angle of 360 degrees, and drives the rotating body encoder 77 in step 103. Subsequently, in step 104, it is determined whether the rotating body 40 has made one rotation. When the rotating body 40 makes one rotation, the claw portion 61 of the lever 60 engages with the cutout portion 65 of the rotating body 40 by the elasticity of the spring 63, and the position sensor 66 detects the engagement of the claw portion 61 with the cutout portion 65. , Output to the discrimination control circuit 50. Therefore, the discrimination control circuit 50 performs step 10
In step 5, the driving of the rotating body motor 71 is stopped, and at the same time, in step 106, the operation of the rotating body encoder 77 is stopped. In step 107, the rotation time and the rotation speed required for one rotation sent from the rotating body encoder 77 of the rotating body 40 are stored in the storage means. Subsequently, in step 108, the discrimination control circuit 50 drives the carry motor 7 to carry the bill along the carrying path 3, and in step 109 operates the carry encoder 30. At this time, the bill passes through the transport passage 3 and the slit 41 of the rotating body 40 and is moved toward the outlet 5.

When a bill moving along the conveying path 3 passes through the optical discrimination sensor 34 and the magnetic discrimination sensor 35, the discrimination control circuit 50 receives the outputs of the optical discrimination sensor 34 and the magnetic discrimination sensor 35 and is conveyed. The authenticity of the bill is judged whether the bill is a genuine bill (step 110). When the discrimination control circuit 50 determines a true banknote from the optical characteristics and magnetic characteristics of the banknote, the exit sensor 36 detects in step 111 whether the banknote has passed. When the leading edge of the conveyed bill passes the bend lever 37 of the exit sensor 36, the leading edge of the bill rotates the bend lever 37,
The photocoupler 38 of the exit sensor 36 generates a detection output that detects the leading edge of the bill. Further, when the rear end of the bill passes the bend lever 37, the bend lever 37 returns to the initial position by its own weight, so that the photocoupler 38 generates a detection output that detects the passage of the rear end of the bill. Step 111
When it is detected that the exit sensor 36 detects the passage of the bill, the bill has completely passed through the exit sensor 36 and the exit 5, and has moved into the stacker device.

When the discrimination control circuit 50 receives the detection signal of the rear end of the bill from the exit sensor 36, the process proceeds from step 111 to 112, and after the bill passes through the exit 5, the output is sent to the rotary motor 71 to rotate the bill. The body 40 is rotated once. After that, the determination control circuit 50 determines in step 113 whether or not the rotating body 40 has made one rotation, and when the position sensor 66 detects the position of the lever 60 by one rotation, step 11
At 4, the operation of the rotating body motor 71 is stopped. Subsequently, the discrimination control circuit 50 compares whether or not the pulse width of the rotary body encoder 77 has a predetermined time interval (step 115) and compares the time required for one rotation of the rotary body 40 with the rotation time stored in step 107. Then, it is determined whether or not it is within the reference range (step 116).

When a withdrawing means such as a string, a thread or a tape is connected to the bill passing through the outlet 5, as shown in FIG. 4, the withdrawing means connected to the bill has slits in the transport passage 3 and the rotating body 40. Since it extends into 41, when the rotating body 40 is rotated once in step 112, the pulling-out means is sandwiched in the small gap between the rotating body 40 and the cover member 47 and wound around the outer periphery of the rotating body 40. When the pulling-out means is sandwiched between the rotating body 40 and the cover member 47, the rotating means encoder 7 interferes with the rotation of the rotating body 40 by the pulling-out means.
An abnormality occurs in the pulse of No. 7 or the rotation speed of the rotating body 40 decreases as compared with the rotation speed before the bill is conveyed. Therefore, when the pulse width of the rotary encoder 77 is not a predetermined time interval in step 115, and in step 11
When the time required for one rotation of the rotating body 40 in 6 is not within the reference range compared with the rotation time stored in step 107, the discrimination control circuit 50 determines that the withdrawing means is connected to the bill, In step 123, an alarm signal is sent to the alarm device 80 to activate the alarm device 80, and then the process proceeds to step 124. The pulling means wound around the outer periphery of the rotating body 40 rotates the protrusion 64 of the lever 60 in the clockwise direction in FIG.
The engagement of the claw portion 61 of 0 can be released, and the rotating body 40 can be rotated and removed. In step 115, when the pulse width of the rotating body encoder 77 is at a predetermined time interval and when the time required for one rotation of the rotating body 40 is within the reference range compared with the rotation time stored in step 107, the discrimination control circuit 50 determines that the withdrawing means is not connected to the bill and stores the bill in the stacker device in step 117, and then proceeds to step 124.

In step 110, the discrimination control circuit 5
If 0 does not determine a true bill, steps 118 and 11
At 9, the conveyance motor 7 is stopped and reversed, and the bill is returned toward the entrance 4. When the entrance sensor 33 is turned off in step 120, the discrimination control circuit 50 stops the driving of the carry motor 7 (step 121), completes the discharging of the bill (step 122), and proceeds to step 124.

FIG. 7 shows a mode in which the discrimination control circuit 50 is composed of a discrete circuit. In FIG. 7, when the entrance sensor 33 detects the insertion of a bill, the pulse shaping circuit 130 such as a one-shot multivibrator switches the R / S flip-flop 131 to the set state and drives the rotating body motor 71 through the OR gate 132. Since the pulse of the rotating body encoder 77 is applied to the AND gate 140 while the rotating body motor 71 is being driven, when the pulse of the rotating body encoder 77 is in the ON state, the pulse number of the pulse generator 141 is set by the first counter 142. Counted. The first counter 142 counts the reference pulse of the pulse generator by counting the pulse width of each pulse generated by the pulse generator 141, and measures the change in the rotation speed of the rotating body 40 in real time. In addition, the first counter 14
2 counts the total time required for the rotation body motor 71 to rotate until the rotation body 40 makes one rotation. The discrimination circuit 143 receives the outputs of the optical discrimination sensor 34 and the magnetic discrimination sensor 35,
It is judged whether the bill has a predetermined optical characteristic or magnetic characteristic. When the discrimination circuit 143 determines that the bill is a true bill,
When an output is generated from the OK terminal and the outlet sensor 36 generates an output via the pulse shaping circuit 144, the AND gate 145 is turned on and the R / S flip-flop 14 is turned on.
6 is set. When the pulse of the rotary encoder 77 is in the ON state, the output of the R / S flip-flop 146 causes the second counter 148 to pass through the AND gate 147 so that the pulse number of the pulse generator 141 is equal to that of the second counter 1.
Counted by 48. The second counter 148 counts the reference pulse of the pulse generator per unit time by counting the pulse width of each pulse generated by the pulse generator 141 after the bill passes through the slit 41,
The change in the rotation speed of the rotating body 40 is measured in real time. In addition, after the bill passes through the slit 41, the second counter 148 counts the total time required for the rotation body motor 71 to rotate until the rotation body 40 makes one rotation. Rotating body 40
After one rotation, the position sensor 66 generates an output, the pulse of the pulse shaping circuit 133 resets the R / S flip-flop 146, and the driving of the rotating body motor 71 is stopped. The comparison means 150 includes the first counter 142, which stores the rotation speed and the total rotation time of the rotating body 40 before the banknote transfer, and the second counter 148, which stores the rotation speed and the total rotation of the rotating body 40 after the banknote transfer. Compare with time. The comparison unit 150 uses the first counter 1 as the rotation speed and the total rotation time of the rotating body 40 stored in the second counter 148.
When the rotation speed and the total rotation time of the rotating body 40 stored in 42 are not within the reference of the predetermined rotation time, the alarm 80 is activated. When the determination circuit 143 does not determine that the bill is a true bill, an output is generated from the NG terminal, the R / S flip-flop 149 is set, and the carry motor 7 is rotated in the reverse direction. When the bill is returned to the entrance 4 and an output is generated from the entrance sensor 33, the R / S flip-flop 149 is reset.

Next, the operation of another embodiment of the bill discriminating apparatus according to the present invention will be described with reference to FIG. Step 1
00 to step 101, when the discrimination control circuit 50 is on standby to detect the insertion of the bill, when the bill is inserted into the entrance 4, the entrance sensor 33 detects the insertion of the bill, and in step 102, the rotary motor 71 is operated to rotate the rotary body 40 by 1.75 rotations (one rotation and 3/4 rotation) at an angle of 630 degrees, and in step 103, the rotary body encoder 77 is driven. Then, Step 1
In 04, the slit 41 of the rotating body 40 has
The rotator 40 is rotated to a matching position that coincides with
It is determined whether 0 has returned to the initial position. When the rotating body 40 returns to the initial position, the position sensor 66 detects the position of the lever 60, the discrimination control circuit 50 stops the driving of the rotating body motor 71 (step 105), and the rotating body encoder 7
The operation of 7 is stopped (step 106). Then, in step 107, the discrimination control circuit 50 determines the rotation time and the rotation speed required for 1.25 rotations (1 rotation and 1/4 rotation) of the rotating body 40 based on the output sent from the rotating body encoder 77. It is counted and stored in the storage means.

Next, the discrimination control circuit 50 drives the carry motor 7 (step 108) and operates the carry encoder 30 (step 109), and at step 110, the bills moving in the carry passage 3 toward the outlet 5 are transferred. Judge authenticity. When it is determined that the bill is a true bill, the bill passes through the slit 41 of the rotating body 40 and is conveyed toward the outlet 5. If it is not determined that the bill is a true bill, the conveyance motor 7 is stopped (step 11).
8) After that, it reverses (step 119) and the bill is in the entrance 4
Will be returned to In step 120, the entrance sensor 33
When the switch is turned off, the discrimination control circuit 50 causes the conveyance motor 7
Is stopped (step 121), and the discharging of banknotes is completed (step 122). Then, in step 123, the rotating body 40 is rotated 1.25 times at an angle of 450 degrees (1
After rotation and quarter rotation) and stop, the process proceeds to step 125. The slit 41 of the rotator 40 is in a vertical state in which it does not align with the transport passage 3, and it is possible to prevent the tool from being illegally inserted into the slit 41 during standby in which banknotes are not inserted into the entrance 4.

When the exit sensor 36 detects the passage of the bill in step 111, the rotating body motor 71 is driven (step 112) to rotate the rotating body 40 by 1.25.
The slit 41 of the rotating body 40 is in a vertical state, and it is possible to prevent the bill from being illegally inserted into the slit 41 after the bill passes through the slit 41 of the rotating body 40. Then, in step 113, the discrimination control circuit 50 causes the rotator 40 to move to 1.2 based on the output of the rotator encoder 77.
If it is determined that the rotor has rotated 5 times, the operation of the rotating body motor 71 is stopped (step 114). Then, step 115.
And in step 116, the discrimination control circuit 50 causes the rotation time and rotation speed required for 1.25 rotation of the rotating body 40 stored in step 107 and the rotation time and rotation required for 1.25 rotation of the rotating body 40 measured in step 112. Compare with speed. If the rotation time and the rotation speed are within the reference range, the bill is stored in the stacker device at step 117, and then the process proceeds to step 125. If the bill is not within the reference range, it is determined that the withdrawing means is connected to the bill and an alarm is issued. Step 1 after generating a signal (step 124)
Go to 25. The next bill is thrown into the entrance 4 and the rotator 40
Since the slit 41 of the rotating body 40 is in the vertical state in which it does not align with the transport passage 3 during the standby time until the rotation of the tool to the alignment position, it is possible to prevent the tool from being inserted into the slit 41 illegally.

The embodiment of the present invention is not limited to the above-mentioned example and can be modified. For example, the rotation time or the rotation speed of the rotating body 40 for one rotation or 1.25 rotations is counted, but the rotating body 40 is rotated at a predetermined rotation angle exceeding half rotation or 1.25 rotation to detect the pulling-out means. May be detected as follows. Further, when the banknote is inserted into the entrance, without rotating the rotating body preliminarily, the storage means that stores a predetermined rotation time or rotation speed in advance is used as a second counter,
The rotation time or rotation speed stored in the storage means may be compared with the rotation time or rotation speed stored in the first counter.

[0029]

As described above, according to the present invention, the withdrawal means connected to the bill can be wound around the rotating body or the presence of the withdrawal means can be detected, and the illegal withdrawal of the bill and the illegal use of the bill discriminating apparatus can be surely prevented. be able to.

[Brief description of the drawings]

FIG. 1 is a sectional view taken along line I-I of FIG.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a sectional plan view of the bill validator according to the present invention.

FIG. 4 is a partially enlarged view of FIG.

FIG. 5 is a block diagram of a bill discriminating apparatus according to the present invention configured by a microcomputer.

FIG. 6 is a flowchart showing an operation sequence of the discrimination control circuit of FIG.

FIG. 7 is a circuit diagram of a bill discriminating apparatus according to the present invention configured by a discrete circuit.

FIG. 8 is a flowchart showing an operation sequence of another embodiment of the bill discriminating apparatus according to the present invention.

FIG. 9 is a perspective view of a conventional bill validator.

FIG. 10 is a side view of FIG. 1 ... Bill validator, 2 ... Case, 3 ... Transport passage, 4 ... Inlet, 5 ... Exit, 6 ... Transport device,
34..Optical discrimination sensor, 35..Magnetic discrimination sensor,
40 ... Rotating body, 41 ... Slit, 44 ... Stepped portion, 46 ... Tapered portion, 47 ... Cover member, 5
0 ... Identification control circuit, 60 ... Lever,

Continued Front Page (72) Inventor Yuki Saito 1-9-15 Kanumadai, Sagamihara City, Kanagawa Japan Sagamihara Research Institute

Claims (19)

[Claims] 1. A case, a conveying passage formed in the case and through which bills pass, and a bill inserted from an inlet provided at one end of the conveying passage is provided along the conveying passage at the other end of the conveying passage. In a bill validator having a transport device for transporting to an outlet and a discriminating sensor arranged adjacent to the transport passage, a rotating body provided with a slit that coincides with the transport passage at an alignment position and rotatably attached, A rotating body driving device that rotates the rotating body, and the authenticity of the bill are judged based on the output of the discrimination sensor.
With a discrimination control circuit for controlling the rotating body drive device, the discrimination control circuit, after the bill passes through the slit of the rotating body,
A banknote discriminating apparatus characterized in that a rotating body is rotated by a rotating body driving device and winding means connected to a banknote is wound around an outer periphery of the rotating body. 2. The bill discriminating apparatus according to claim 1, wherein a taper portion for guiding bills is formed in a slit of the rotating body. 3. The bill discriminating apparatus according to claim 1, further comprising a lever fitted to a notch formed on an outer peripheral portion of the rotating body. 4. The bill discriminating apparatus according to claim 3, wherein the lever positions the rotating body at the alignment position and rotates the rotating body only in one direction. 5. A bill inserted in an entrance is moved along a conveying passage by a conveying device, a discrimination output is picked up by a discrimination sensor attached along the conveying passage, and a rotating body rotatably arranged in the conveying passage. The process of moving the banknotes through the slits, the process of determining the authenticity of the banknotes by the banknote validator, and the process of sending the banknotes from the banknote transfer device to the stacker device that stores the banknotes when the banknotes are judged to be true banknotes After passing through, the process of measuring the rotation speed or rotation time of the rotating body by rotating the rotating body by a certain angle from the alignment position where the slit coincides with the conveying path, and the normal rotation speed or rotation time of the rotating body. And a step of detecting the presence of the withdrawing means when the rotating speed of the rotating body is slow or the rotating time is long, as compared with. 6. The method of detecting bill withdrawing means according to claim 5, further comprising the step of rotating the rotating body to an alignment position where the slits coincide with the transport passage when the bill is inserted into the entrance. 7. The method of detecting bill withdrawing means according to claim 5, further comprising a step of storing beforehand a rotation time or a rotation speed of the rotating body within a predetermined angle range in which the bill is not conveyed. 8. The method for detecting bill withdrawing means according to claim 5, further comprising the step of detecting an alignment position where the slit coincides with the conveying path. 9. The method of detecting bill withdrawing means according to claim 5, further comprising the step of positioning the rotating body at the aligning position and preventing rotation of the rotating body in the aligning position in one direction. 10. The method for detecting bill withdrawing means according to claim 5, including a step of measuring a pulse width of a pulse generated from an encoder connected to a rotating body motor for rotating the rotating body. 11. The method according to claim 5, further comprising the step of counting a time interval of pulses generated from an encoder connected to a rotor motor for rotating the rotor to measure a rotation time of the rotor.
The method for detecting a bill withdrawing means described in. 12. The rotation speed or rotation time of the rotating body by counting the pulse width and the time interval of the pulse generated from the encoder connected to the rotating body motor that rotates the rotating body by a predetermined angle before transporting the bill. The process of pre-measurement, the process of storing the pre-measured rotation speed or rotation time of the rotating body, the bill inserted at the entrance is moved along the conveyance passage, and the bill is discriminated during the movement and is conveyed. The process of discharging from the outlet of the passage, and after discharging the bill from the outlet, rotate the rotating body by a predetermined angle, count the pulse width and time interval of the pulse generated from the encoder connected to the rotating body motor, and rotate The process of later measuring the rotation speed or rotation time of the body, the process of storing the rotation speed or rotation time of the rotation body measured later, and the process of previously measuring the rotation speed or rotation time of the rotation body The presence of the withdrawal means when the rotation speed or rotation time of the rotation body measured later is greater than the rotation speed or rotation time of the rotation body measured in advance by a certain range or more as compared with the rotation speed or rotation time of the rotation body measured in 6. The bill withdrawing means detecting method according to claim 5, including the step of detecting. 13. A process of detecting the presence of the pulling-out means when the time required for the rotating body to make one rotation later is longer than the time required for the rotating body to make one rotation earlier by a predetermined time or more. The method for detecting a bill withdrawing means described in. 14. A process of detecting the presence of the withdrawing means when the time required for the rotator to rotate 1.25 times is longer than the time required for the rotator to rotate 1.25 first by a certain time or more. The method for detecting a bill withdrawing means according to claim 12, including the method. 15. A case, a conveying passage formed in the case and through which bills pass, and a bill inserted from an inlet provided at one end of the conveying passage is provided at the other end of the conveying passage along the conveying passage. In a bill validator having a transport device for transporting to an outlet and a discriminating sensor arranged adjacent to the transport passage, a rotating body provided with a slit that coincides with the transport passage at an alignment position and rotatably attached, A rotating body driving device that rotates the rotating body, and the authenticity of the bill are judged based on the output of the discrimination sensor.
It is provided with a discrimination control circuit for controlling the rotating body driving device, an encoder operatively connected to the rotating body driving device and for detecting a rotation speed of the rotating body, and a cover member surrounding and attached to the rotating body. Bill validator. 16. The rotating body and the cover member are provided with at least one step portion corresponding to each other.
The bill validator described in 1. 17. The bill discriminating apparatus according to claim 15, wherein a taper portion for guiding bills is formed in a slit of the rotating body. 18. The bill discriminating apparatus according to claim 15, further comprising a lever fitted to a notch formed in the outer peripheral portion of the rotating body. 19. The lever positions the rotating body at the alignment position and rotates the rotating body only in one direction.
The bill validator according to item 8.