JPH03214386A - Bill discriminating device - Google Patents

Abstract

PURPOSE:To prevent various mischievous actions by detecting a bill with tape by providing a mischief preventing device between a bill throw-in port and a bill carrying belt. CONSTITUTION:In the case a bill with tape is inserted, when a gate switching operation before sending out a true ticket signal is executed, since the tape exists in a gate state 11a, 12a 11b, 12b passage, switching of the gate cannot be performed, and a detecting sensor 18 is not switched. Therefore, it is decided to be abnormal, and a return operation is executed in a state returned to the gate states 11a, 12a. In such a way, in whatever position and in whatever size the tape stuck for mischief is stuck against width of the fill, since the gate is constituted on the whole surface of width, there is no method for escaping from the detection at the time of switching operation of the gate, and mischief is surely prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a banknote identification device installed in a vending machine or the like.

BACKGROUND OF THE INVENTION In recent years, the proportion of automatic devices such as vending machines equipped with banknote identification devices has been increasing. This is due to the fact that since unmanned sales are the norm, various pranks are becoming more common.

Among these pranks, there is a prank in which a banknote is pasted with tape or the like, inserted into the slot, purchased, and then the used banknote is pulled out. We will explain the conventional prevention device against this type of mischief. Fig. 3 shows the structure of the banknote recognition device, in which 1 is an input slot (return slot) for depositing and returning banknotes, 2 is a conveyor belt, and 3 is a drive for driving the conveyor belt 2 when a banknote is inserted. The optical sensor 4 for detection is an identification section for determining the authenticity of inserted banknotes, and 5 is a banknote storage section. Reference numeral 6 denotes a tamper-proofing mechanism with a conventional tape attached, the structure of which is shown in Figure 4. In FIG. 4, 7 is a claw that moves across the passage 13, 8 is a shutter that switches the detection sensor 9 between ON and OFF in conjunction with the claw 7, and 10 is a solenoid that moves the claw 7 by an ON-OFF operation. .

When a banknote is inserted from the input slot 1, the conveyance belt 2 is driven by detecting the insertion of the banknote with the deposit detection sensor 3 installed at the entrance, and the banknote is conveyed by the conveyance belt 2. Ru. At this time, the solenoid 10 is sucked, the claw 7 moves to the outside of the passage, and a passage is formed. Further, the banknote is conveyed, passes a part of the identification sensor, and when it is determined to be a genuine banknote, the solenoid 10 is released and the tamper detection claw 7 crosses the passage.
After confirming that it has not been tampered with, a genuine note signal is sent, the product is purchased and stored, and the series of operations is completed.

Now, if a tape-attached bill is inserted into the slot 1 for a mischievous purpose such as pulling out the used bill after purchasing a product using the tape-attached bill, the above operation will be performed and the bill will be determined to be a genuine bill. , the claw 7 is released by releasing the solenoid lO.
When the paper crosses the aisle, the claw 7 hits the tape and does not return to its normal level, so the Nyanota-8 does not shut off the detection sensor 9, so it is determined that it is in an abnormal state and does not send out a genuine bill signal, but instead returns it. It has become. Problems to be Solved by the Invention Even in the above-mentioned tamper-proofing device, if a groove is provided perpendicular to the direction in which banknotes are conveyed, the banknotes will enter the groove during the conveyance operation and jams will occur. Furthermore, because the conveyor belt is formed in the middle of the aisle width, the tabs cannot be installed across the entire width of the aisle, so banknotes attached to the tape in a position that cannot be detected by the tabs cannot be detected. This is the current situation, and therefore, for those who have knowledge of banknote identification system I for pranks such as taped banknotes, or those who are in a position to try repeatedly while selecting the type of prank, However, there is a problem in that it is not possible to completely prevent mischief.

The present invention has been made to solve the above-mentioned problems, and provides a device with significantly improved ability to protect against mischief.

Means for Solving the Problems The present invention provides a tab (gate) for detecting tampering with tape, etc., closer to the input port than the conveyor belt, thereby forming the tab (gate) over the entire width of the passageway, and making it difficult to deposit banknotes. The passageway for time and return can be switched using a claw (gate). When a tape-attached banknote inserted from the input slot passes through the recognition unit and is determined to be a genuine banknote (if it is not determined to be a genuine banknote, it will be returned as it is). If the aisle is switched and it is not tampered with by tape, etc., the switching is performed normally and a genuine note signal is sent, and the product can be purchased. However, if there is tape, etc. in the aisle, the gate will switch the aisle. Since this cannot be done normally, it can be determined that it is in an abnormal state, and since the gate is constructed over the entire width, it is possible to completely eliminate any chance of mischief.

Moreover, it is not just a tab, but also acts as a gate to switch the path for deposits and refunds.

Even if there is a problem with the gate switching detection sensor and tape, etc. cannot be detected, the tampered banknotes will be returned from a separate passage, resulting in a double safety structure that can stop the banknotes midway. It becomes. EXAMPLES Hereinafter, examples of the present invention will be explained in detail with reference to FIGS. 1 and 2. FIG. 1 shows one embodiment of the present invention, in which 11 and 12 are passage switching gates, l3 is a passage, and 14. Reference numeral 15 indicates upper and lower bases that constitute the passage.

Further, FIG. 2 shows a mechanism for driving the gate, where 16 is a solenoid, 17a and 17b are gate drive gears, 18 is a gate switching detection sensor, and 19 is a detection shutter.

In this embodiment configured in this way, the operation in the normal use state will first be explained. In the standby state (state where banknotes can be accepted), the switching gates 11 and 12 are set to 11a.
, 1lb, and the banknotes are inserted into the passage 13a side. After the inserted banknote is detected by the entrance detection sensor 3, the transport belt 2 is driven to start transporting the banknote, and after passing through the identification section 4, the switching gate 11.12
After the sensor 18 detects that it has moved to the position 2b and has been switched, it sends out a signal directly across. This allows you to purchase the product. In addition, when returning the gate, the gate will be returned in the condition of llb, 12b. Next, the operation will be explained in the case where a banknote with tape is inserted as a prank.

The process from when a banknote is inserted until the identification is determined is the same as normal operation, but when the gate switching operation is performed before sending the genuine note signal (lla, 12a-1lb.12b), the gate is closed due to the presence of tape in the path. Since the switching cannot be performed and the detection sensor 18 does not switch, it is determined that there is an abnormality, and the gate is closed.
la. Perform the return operation while returning to 12a. Regardless of the position and size of this prank tape pasted on the width of the banknote, the gate is constructed over the entire width of the banknote, so it can be avoided from detection when the gate is switched. There is no surefire way to prevent mischief.

Also, assuming that there is a problem with the gate switching detection sensor 18 and the tape cannot be detected, the tape remains connected from the input slot 1 to the banknotes on the path where they are temporarily held. A genuine note signal will be sent. If someone tries to tamper with you in this situation, you will first have to purchase the item, then the used banknote with tape will be pulled out, or you will be forced to return it using another method, but in either case, the gate is
Since the position is switched to 2b, even if the tape is inserted from the passage 13a, the banknote will be returned to 13b.
Moreover, the base 14 and the gate 11. 12, it is impossible to return tape-attached bills from passage 13b. From the above, switching gate 11. By providing 12, the object of the present invention can be achieved.

Effects of the Invention As explained above, according to the present invention, even with tape-attached bills attached in any state, it is possible to reliably detect potato chips with the gate provided across the width of the aisle. This has the effect of preventing various mischievous acts that may be attempted when the user is unable to do so. Furthermore, even if there is a problem with the detection sensor and the tape cannot be detected, the tape will not be pulled out because the path is divided into two.

From the above, the present invention not only completely prevents pranks using tape-attached banknotes, but also allows the product to be provided on the market for a long period of time. It can also be expected to have the effect of eliminating motivation.

[Brief explanation of drawings]

Claims (1)

[Scope of Claims] (1) A banknote identification device including a tamper-proofing device between a banknote input slot and a banknote conveyance belt. (2) The tamper prevention device divides the deposit passage and the refund passage into two, and at least includes a gate that blocks the refund passage when the deposit passage is formed and a gate that blocks the deposit passage when the refund passage is formed. 2. The banknote identification device according to claim 1. (3) Claim 2: The gate is dimensioned to cover the entire width of the passageway.
The banknote identification device described.