JPH0454540Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a fraud prevention device for a paper sheet identification device.

(B) Conventional technology Conventionally, in paper sheet identification devices, the tip of tape or the like is pasted to the rear of a banknote that is considered to be a genuine paper sheet, and the banknote is inserted into the recognition device to be determined as a genuine banknote. Immediately after this, a prank has occurred in which the banknotes are pulled out of the identification device by pulling the rear end of the tape. Therefore, if the identification device is installed in a vending machine, products will be fraudulently acquired, and if it is installed in a money exchange machine, money will be fraudulently acquired. For this reason, recently, as disclosed in Japanese Utility Model Publication No. 57-56294, a blocking section is provided near the insertion slot, which has fingers that move in and out of the bill conveyance path when driven by a solenoid. When the banknote passes through a position corresponding to , the finger protrudes into the passage, and the finger prevents the banknote from being pulled out.

(c) Problems to be solved by the invention The conventional extraction prevention device having such a structure can be easily extracted by matching the position of the tape attached to the banknote with the position of the finger protruding into the passage. There were flaws.

In view of the above, the present invention provides a device that can reliably prevent fraudulent use of paper sheets by means of tapes attached to paper sheets.

(d) Means for Solving the Problems In order to solve the above problems, the present invention has developed a system in which paper sheets inserted into the conveyance path from the front insertion opening are held by a conveyance device and sent to the rear. A paper sheet identification device that transports paper sheets and performs authenticity identification with an identification device during the transport, includes a pair of left and right transport devices that grip and transport the left and right side portions of paper sheets, and a paper sheet that is inserted into the insertion slot. a solenoid that is energized when the detector detects the insertion of a paper sheet and demagnetized when the identification device determines the authenticity of the inserted paper sheet; A blocking member that escapes outside the conveyance path when excited and protrudes into the conveyance path when demagnetized, and a detector that detects when the blocking member moves into and out of the conveyance path after the solenoid is demagnetized,
The blocking member protrudes into the conveyance path at a plurality of locations,
Furthermore, it is configured to protrude and retract into the conveyance path in close proximity to the front end on the extension line of the front end of the conveyance device.

(E) Effect The present invention provides a blocking member that protrudes and retracts into the transport path in close proximity to the front end of the conveying device on the extension line of the front end, and when a tape or the like is applied to the blocking member and an attempt is made to pull it out, the tape or the like is removed. The tape or the like is held in a conveying device and stretched in a straight line, and the blocking member is moved upward, and a detector detects the movement of the blocking member after the authenticity of the paper sheet has been determined.

(f) Examples Each figure shows an example of the present invention. Reference numeral 1 denotes a paper sheet identification device, and an insertion slot 3 having a holder 2 into which banknotes as paper sheets are inserted is opened on the front surface. Further, within the paper sheet identification device 1, there is formed a banknote conveyance path 4 that communicates from the insertion slot 3 to the rear end. 5
The banknotes inserted from the insertion slot 3 are taken into the conveyance path 4 and conveyed, and the identification device 6 determines the authenticity of the banknotes.
This is a transporting device that transports and stores the banknotes inside the bank, and when the identification device 6 determines that the banknotes are false, it turns over and transports the banknotes back to the insertion slot 3. This conveyance device 5 includes a pair of upper and lower endless belts 5A and 5B stretched along the conveyance path 4.
It is rotated by a drive motor (not shown), and is designed to sandwich and convey banknotes between endless belts 5A and 5B. Further, the conveyance devices 5 are provided along both sides of the conveyance path 4 so as to sandwich and convey the left and right side portions of the banknotes. Reference numeral 7 denotes an optical detector which, when detecting a banknote inserted through the insertion slot 3, operates the transport device 5 to take in and transport the banknote. ing.

8 is a solenoid which is energized when the detector 7 detects the insertion of a banknote, and demagnetized when the identification device 6 determines the authenticity of the inserted banknote; ing. The lower part of the plunger 8A protrudes and retracts into the conveyance passage 4 as a blocking member 9, and when the solenoid 8 is demagnetized, its lower end is inserted into the hole 10 opening into the lower surface of the conveyance passage 4 due to its own weight. When excited, it moves upward and is recessed into a hole 11 that opens on the upper surface of the conveyance path 4 . Further, this plunger 8A is provided with a blocking member 9 extending to both sides and located correspondingly on the front end extension line of the left and right conveying devices 5, 5, and a blocking member 9 is provided at a position close to the front end of the conveying device 5 to form a conveying path 4. I can come and go inside. That is, the blocking member 9 operates in the same way as the blocking member 9 at the lower part of the plunger 8A to move into and out of the conveyance path 4. Therefore, when the solenoid 8 is energized, it is moved upward and recessed into the hole 11 that opens on the upper surface of the conveyance passage 4, and when the solenoid 8 is demagnetized, its lower end opens on the inner lower surface of the conveyance passage 4 due to its own weight. It is inserted into the hole 10. Reference numeral 12 denotes an optical detector that detects when the blocking member 9 comes out and disappears into the conveying path 4. When the blocking member 9 is completely protruded into the conveying path 4, the operating rod 13 operates the detector 12. However, when the blocking member 9 is in the upward movement position, the detector 12
is set to be inactive. The detector 12 detects whether the blocking member 9 moves into or out of the transport path 4 after the solenoid 8 is demagnetized after the identification device 6 determines the authenticity. The state of protruding into the passage 4,
That is, when the lower end of the blocking member 9 is inserted into the hole 10, the bill is transported and stored as a genuine bill by the conveying device 5 to the storage 14 installed at the rear of the paper sheet identification device 1, and is also blocked. If the lower end of the member 9 is not inserted into the hole 10 due to the tape attached to the rear end of the bill, the authenticity determination by the identification device 6 is canceled and the identification is stopped, or the conveyance device 5 is reversed. It is designed to perform a return operation.

In such a configuration, as shown in FIG. By demagnetizing the solenoid 8 after the determination, the blocking member 9 moves downward normally and its lower end is inserted into the hole 10 . Therefore, even if an attempt is made to pull out the banknote T by pulling the rear part of the tape B, the banknote T is prevented from being pulled out by the three blocking members 9, 9, 9 that protrude into the transport path 4.

Moreover, as shown in FIG. 4, the inserted banknote T
When the position of the tape B affixed to the rear end corresponds to either of the left and right blocking members 9, 9 located close to the front end of the transport device 5 on the front end extension line of the transport device 5, Even if the blocking member 9 moves downward due to the demagnetization of the solenoid 8 after the authenticity determination by the identification device 6, the lower end of the blocking member 9 cannot be inserted into the hole 10 due to the tape B. Therefore, since the detector 12 cannot operate, the authenticity determination is canceled and the identification is stopped, or the transfer device 5 is reversed and the banknote T is returned. Further, even if the lower end of the blocking member 9 is inserted into the hole 10 together with the tape B because the tape B is soft, if the tape B is pulled to pull out the banknote T, the blocking member 9 will be inserted into the pulled tape B. As a result, the detector 12 becomes inoperable. Therefore, the authenticity determination is canceled and the identification is stopped, or the transport device 5 is reversed and a return operation is performed. That is, the front part of the tape B located corresponding to the blocking member 9 is in a state of being clamped by the conveying device 5, so that when the rear part of the tape B is pulled to pull out the banknote T, the tape B is pulled in a straight line. In this case, the blocking member 9 is reliably moved upward, rendering the detector 12 inoperable and canceling the authenticity determination. Therefore, for example, if the paper sheet identification device 1 is installed in a vending machine, the amount of coins inserted becomes "0" due to the cancellation of the authenticity determination, so it is difficult to prevent unauthorized delivery of products. can.

(g) Effects of the invention As described above, the present invention provides a blocking member that protrudes and retracts into the conveying path on the extension line of the front end of the conveying device in close proximity to the front end, and prevents the blocking member from being used after determining the authenticity of paper sheets. Since the detector detects whether a banknote enters or exits the conveyance path, even if a soft tape or the like is pasted to the position of the blocking member, the blocking member can be secured by pulling the tape. It is possible to detect fraud using a detector.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a side sectional view of the paper sheet identification device, and FIG. 2 is a cross-sectional view of A in FIG.
-A sectional view, FIGS. 3 and 4 are operation explanatory diagrams. 3... Insertion port, 5... Transport device, 6... Identification device, 7... Detector, 8... Solenoid, 9... Blocking member, 12... Detector.

Claims (1)

[Scope of utility model registration request] Paper sheets inserted into the conveyance path from the front insertion port are held by the conveyance device and conveyed to the rear,
In the paper sheet identification device in which the identification device performs authenticity identification during the transportation, the paper sheet has a pair of left and right conveying devices that grip and convey the left and right side portions of the paper sheet, and a paper sheet inserted into the insertion slot. A detector that detects leaves,
a solenoid that is energized when the detector detects the insertion of a paper sheet and demagnetized when the identification device determines the authenticity of the inserted paper sheet; a blocking member that protrudes into the conveying path at a plurality of locations, and a detector that detects when the blocking member protrudes into and out of the conveying path after the solenoid is demagnetized; A tamper prevention device for a paper sheet identification device, characterized in that the device is configured to protrude and retract into a conveyance path on an extension line of the front end of the conveyance device in close proximity to the front end.