JPS6221698B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bill handling device, particularly a bill receiving device provided in an automatic deposit machine.

In automated teller machines that automatically process deposits, the depositor generally inserts his or her card into the card slot, enters the card's unique PIN code, and when these are determined to be correct, inserts the banknotes. Insert the banknotes to be deposited into your mouth and perform the following operations. In general, there are two ways to insert banknotes: a so-called bulk insertion method in which the depositor inserts one bill at a time through the slot, and a batch insertion method in which a plurality of bills to be deposited can be inserted at once through the slot.

FIG. 1 shows an overview of the automatic deposit system of the batch loading type, particularly an overview of the banknote conveyance mechanism. The depositor stacks all the banknotes he wants to deposit and inserts them into the slot _OP1 . At this time, since the shutter SH is raised, the inserted banknote bundle is inserted up to the stopper SP. When the insertion of banknotes is detected by the photosensors PS ₁₁ and PS ₁₂ , the stopper SP is lowered, and the belt _B2 is lowered to the dotted line position, and the banknote bundle is clamped together with the belt _B1 and sent in the direction of the arrow. When the leading edge of the bill bundle reaches photo sensor PS ₁₄ , photo sensors PS ₁₄ to _{PS 12} detect the bill bundle, and photo sensor PS ₁₁ does not detect the bill bundle. Under these conditions, the insertion is determined to be normal, and the shutter SH is activated. Downstream banknotes are sent from the input section TB to the discrimination section DB. On the other hand, if the banknotes are inserted folded or in a misaligned state, the length of the banknote bundle will be too small or too long, and the above condition will not be satisfied, and in this case, the belt B ₁ , B ₂ rotates in the opposite direction and returns the inserted banknotes.

When the banknote bundle is inserted normally, rollers R ₁ to _{R 3} having minute irregularities on their surfaces rotate and send the banknotes one by one to the discrimination section DB. When the tail end of the sent banknote is detected by the photosensor PS ₁₆ , the next banknote is sent, and this banknote feeding operation continues until there are no more banknotes to be input or until the maximum allowable number of banknotes in the store section SB reaches, for example, 50 banknotes. The bill conveyance speed in the discrimination section DB is considerably faster than that in the input section TB, and therefore the rollers in the input section near the discrimination section are of a freewheel type. While being conveyed at high speed through the discrimination section, all types of banknotes (10,000 yen, 5,000 yen, 1,000 yen bills) and authenticity are determined (the mechanism of the discrimination section is complex, but the drawing shows it (only some of them are shown). If the verification result is good (the bill is genuine and the denomination has been detected), the gate RTM guides the bill coming out of the verification section DB to the store section SB via belts B ₄ and B ₅ .
Send to GU. When the banknote comes onto the guide GU, this is detected by the photosensors PS ₄₃ and PS ₄₄ , and the motor _M1 is activated to push the banknote on the holder onto the belt _B6 via the pusher PSH. At this time, the guide GU supporting both sides of the banknote opens left and right, and the belt B ₆ is stopped. If the discrimination result is bad, the gate is activated when the banknote is detected by the photo sensor PS ₂₃ .
The RTM rotates counterclockwise and transfers the bill to belt B ₇
- Discharge via B ₁₀ to return port OP ₂ . The gate is restored when the discharged banknote passes the photosensor PS ₂₅ .

When all the inserted banknotes have been differentiated and dropped onto belt B ₆ , which is the primary storage unit, and stacked, the total amount of the input banknotes will be displayed on the front panel of the automatic deposit machine. A message will appear asking if you can become an adult. Depositor OK
If so, press the button marked with an O, and if not, press the button marked with an X. When the 〇 button is pressed, motor M ₁ operates again and belt B ₆ is activated via pusher PSH.
(This belt also holds down both edges of the banknotes.) Drop the stack of banknotes on top into the canister (banknote storage box) CAN.
When the depositor presses the x button, the belt B ₆ rotates and returns the banknote bundle on the belt B ₆ , and therefore all of the inserted banknotes, along the route of belts B ₇ to _{B 10} .

By the way, in automatic deposit machines that use bulk insertion, the multiple bills that are inserted one after another do not normally come very close to each other on the conveyance path within the machine, but automatic deposit systems that use bulk insertion methods simplify the depositor's banknote insertion operation. In the deposit machine, as mentioned above, the plurality of banknotes that are deposited all at once and stacked are fed out one by one by a banknote feeding unit using a friction roller or the like.
If the bill dispensing unit does not operate properly, the rear end of the previously dispensed bill may be extremely close to the leading end of the subsequently dispensed bill. These dispensed banknotes are discriminated by denomination, authenticity, etc. by the verification unit, and those determined to be genuine are sent to the receiving unit, while those determined to be defective such as counterfeit banknotes are routed through a separate route. Depending on the result of the discrimination, the banknotes are returned to the depositor through the return port and passed through the discrimination section. This is done by Gate RTM, but there are some problems with this.

This point will be explained in detail with reference to Fig. 2, which is slightly enlarged. In Fig. 2, numerals 1 and 2 are a pair of rollers installed directly above the gate RTM, which rotate in the direction of the arrow. A pair of rollers 1, 2
During this period, the banknotes that have been conveyed from the discrimination section DB through the route _L0 consisting of the belt _B3 , etc. are passed through a mechanical gate.
By pivoting the RTM in one direction about the axis 3, it can be conveyed to the intake section (not shown) through the first path _L1 or to the return port (not shown) through the second path _L2 . This determines whether to transport the material to the other side. This gate RTM is normally pivoted clockwise to form the first path _L1 , but as shown in the figure, when the tip of a banknote determined to be defective by the discrimination section is detected by the photosensor _PS23 , is driven by the gate driver to switch to the opposite side and take the second path.
Form L ₂ . Then, when the rear end of the defective banknote transported along the second route _L2 is detected by the photosensor _PS25 , the gate RTM is switched and controlled so as to form the first route _L1 again (that is, (stops driving by the gate driver).

Therefore, as shown in FIG. 3, if there is a sufficient distance between the preceding banknote A that has been identified as a defective banknote and the following banknote B that has been identified as a genuine banknote, the banknote A will be detected by the photo sensor.
Drive gate RTM when PS ₂₃ is reached,
When the banknotes B are conveyed on the second path _L2 and pass through the photosensor PS ₂₅ , the drive of the gate is stopped, and even when the gate is completely restored after time _T2 , the subsequent banknotes B still pass through the photosensor PS ₂₃ as shown in the figure. Since the banknote B has not reached the position, there is no problem and the banknote B takes the first route.
Transported by L ₁ . However, if there is a following banknote C close to this banknote B and this banknote is defective, the leading edge of the banknote C will be exposed to the photosensor PS _23.
When the drive of the gate RTM is started to form the second path _L2 at the time when the banknote B is detected, the banknote B has not yet completely passed through the gate RTM and the rear end of the banknote B is detected. Gate RTM
There is a risk that the leading edge of the banknote C may be caught between the banknotes C and the rollers 2, and a so-called paper jam may occur. If banknote B is defective and banknote C is good, the drive of the gate RTM starts when the banknote B reaches the photosensor PS ₂₃ , and the drive of the gate RTM stops when the banknote B passes the photosensor PS ₂₅ . T ₂ is applied to recover, but during this recovery period, the next banknote C is detected by the photo sensor as shown in the figure.
PS ₂₃ has been reached, and this banknote C hits the gate RTM or enters the path _L2 side and gets caught between the roller 1 and the gate, and there is also a risk that a paper jam will occur. Incidentally, in FIG. 3, _T3 indicates a gate drive period like _T1 , and _T4 indicates a gate recovery time like _T2 . In addition, in the figure, the vertical axis represents the passing position of the banknote, and the horizontal axis represents the time axis, where _P16 indicates the position of the photo sensor PS16, and _P23 indicates the position of the photo sensor _PS16 .
The position of PS ₂₃ is shown, and P ₂₅ shows the position of photosensor PS ₂₅ .

The present invention has been made in view of the above-mentioned points, and prevents the occurrence of paper jams caused by the preceding first banknote and the following second banknote in the gate section that switches the conveyance path according to the discrimination result. The present invention provides a banknote retrieval device designed to prevent the occurrence of banknotes, which is characterized by a feeding mechanism that feeds out banknotes that have been inserted at once by a user one by one at intervals; a discrimination section having a conveyance path of a certain length for determining the authenticity and denomination of the banknotes; a gate section for distributing the banknotes according to the authenticity determination result of the discrimination section; A storage conveyance path that conveys the genuine banknotes to the storage section where they are temporarily stored and stored; a return conveyance path that conveys the counterfeit banknotes sorted by the gate section to the banknote return slot; and a path from the feeding mechanism to the discrimination section. a sensor for detecting the interval between banknotes, and a banknote transfer interval in which the interval between the banknotes received by the sensor and sequentially dispensed and transferred by the dispensing mechanism corresponds to the banknote sorting operation of the gate section; a comparison unit that detects that the banknote is smaller; a storage unit that stores the detection output from the comparison unit; and a first sensor that detects that the bill that has been discriminated by the discrimination unit reaches the gate unit; a second sensor for detecting that the counterfeit banknotes sorted by the gate part are conveyed to the return conveyance path; and a second sensor for detecting that the fake banknotes sorted by the gate part are conveyed to the return conveyance path side; gate control means for holding and controlling the gate position, and the feeding mechanism feeds out the next banknote to the discrimination section at least before the leading edge of the previous banknote reaches the first sensor;
The gate control means is configured to control when the first sensor detects the arrival of banknotes, when the discrimination result of fake banknotes is output from the discrimination section, or when the bill interval is determined by the storage means to the gate section. If it is stored that the transfer interval is smaller than the transfer interval corresponding to the sorting operation, the gate section is switched to the return conveyance path side, and the second sensor detects that the banknote has been conveyed to the return conveyance path side. At the point in time, the switched gate section is configured to return to the storage conveyance path side, and counterfeit banknotes and banknotes that cannot be sorted and stored are returned to the user via the return conveyance path.

An embodiment of the present invention will be described below with reference to FIG. In the figure, reference numerals 10 and 11 are photosensor amplifiers that amplify the photoelectric conversion outputs from the photosensors PS ₂₃ and PS ₂₅ shown in FIGS. 1 and 2, respectively, and the output of the amplifier 10 is led to the tip detection circuit 12. The output of the amplifier 11 is led to a rear end detection circuit 13. The leading end detection circuit 12 detects that the leading end of the banknote has arrived at the position of the photosensor PS ₂₃ based on the rise of the output of the amplifier 10, and supplies its detection output to one input end of the AND gate 14. The trailing edge detection circuit 13 detects that the trailing edge of the banknote has passed the position of the photosensor PS ₂₅ based on the rising edge of the output of the amplifier 11, and supplies the detection output to one input terminal of the AND gate 15. The output of the amplifier 10 inverted by the inverter 16 is supplied to the other input terminal of the AND gate 15, and the output of the gate 15 becomes the reset input of the control circuit 17. The gate control circuit 17 controls switching of the gate RTM shown in FIG. 1 to the return side. Conventionally, the leading edge detection circuit 12 and the trailing edge detection circuit 13 are controlled based only on the discrimination results from the banknote discrimination section DB.
However, in the present invention, gate switching is performed based on the contents of the gate switching memory 19 supplied via the AND gate 14, giving priority to the discrimination result of the banknote discrimination section DB.

An insufficient spacing between banknotes may be detected by any appropriate means, but
In this example, detection is performed by a photosensor PS ₁₆ provided at the entrance of the discrimination section DB. After amplifying the photoelectric conversion output of the photosensor PS ₁₆ with the photosensor amplifier 21, the bill interval detection circuit 22 outputs the photoelectric conversion output of the photosensor PS _16.
Detects the interval between banknotes that successively pass through the positions where the banknotes are placed. In other words, the time from the rise to the fall of the output of the amplifier 21 indicates the length of one bill, but conversely, the time from the fall to the rise indicates the interval between two consecutive bills (from the trailing edge of the preceding bill). It has information indicating the distance to the leading edge of the following banknote. Therefore, a standard value indicating the interval between two banknotes allowed by the standard value setting circuit 23 is always supplied to the comparison circuit 23, and the comparison circuit 23 compares the interval between banknotes detected by the detection circuit 22 and the standard value. compare. If it is determined that the bill spacing is less than the standard value, information to that effect is written in the memory 19.

The operation of the device configured as described above is shown in Figure 2.
This will be explained with reference to FIG. First, as shown in FIG. 3, in the case of banknote A being conveyed sufficiently ahead of the following banknote B, the interval between banknotes A and B detected by the detection circuit 22 is sufficiently larger than the standard value. Therefore, when the tip of the banknote A reaches the position of the photo sensor PS ₂₃ , the gate control circuit 17 activates the discrimination unit DB.
gate based on the identification results for banknote A by
It is possible to control RTM. Therefore, if the banknote A is defective, the gate RTM is driven for a period _T1 to form the second path _L2 , and then when the trailing edge of the banknote A passes the position of the photosensor _PS25 . The drive is stopped by being reset by the output of the AND gate 15, and after a time _T2 , it is restored to form the first path _L1 .
In addition, if banknote A is judged to be good, the gate
The RTM drive is not performed, and the bill A is conveyed to the bill receiving section through the first path _L1 .

On the other hand, if the difference between the preceding first banknote B and the following second banknote C is below the standard value, the comparison result of the comparator circuit 24 is stored in the memory 19, and the preceding first banknote C is stored in the memory 19. The tip of banknote B is a photo sensor
When the position of PS ₂₃ is reached, the tip detection circuit 12
The stored contents of the memory 19 are supplied to the gate control circuit 17 via the AND gate 14 which is opened at the output. In this way, when the stored contents of the memory 19 are given, the gate control circuit 17
The gate 3 is driven to form the second path _L2 , regardless of the results of the discrimination between the banknotes B and C.
This gate drive starts when the leading edge of the preceding banknote B reaches the photosensor PS ₂₃ in FIG _.
Since the trigger is retriggered upon arrival, the period ends when the trailing edge of the banknote C passes the photo sensor PS ₂₅ .
Conducted over T ₅ .

Therefore, when the discrimination result of the first bill B and the discrimination result of the second bill C are different, the gate RTM is switched when the leading edge of the second bill C reaches the position of the photosensor PS ₂₃ . Since there is no overlap period _T3 , paper jams can be prevented from occurring. Note that even if the discrimination results for both the first and second banknotes B and C are good, the same operation is performed, so these adjacent banknotes B and C are routed along the first path L ₁
It also has the advantage that it does not interfere with the folding operation (the dropping and accumulation of banknotes from the guide GU onto the belt B ₆ by a pressing operation), which is normally carried out at regular intervals when the banknotes are transported to the receiving section. Further, if the third banknote following the second banknote has an interval equal to or greater than the standard value, the memory 19 is reset by the comparison circuit 24, so that after this third banknote, the discriminating unit is reset again.
Gate control is performed according to the DB discrimination results.
In addition, the denomination data DBD of banknotes that have been discriminated is the discrimination department DB.
Since the output point in time is after the gap is detected by the photosensor PS ₁₆ , the output of the memory 19 is gated by the AND gate 25 and is not supplied to, for example, the deposit amount calculation section.

As described above, the banknote feeder of the present invention can prevent paper jams at the gate caused by banknotes being conveyed in close proximity, so it can be used in bulk loading automatic deposit machines. It can be applied to make the deposit processing smooth and reliable.

[Brief explanation of the drawing]

Fig. 1 is a side view showing the banknote transport section of the automatic deposit machine, Fig. 2 is a configuration diagram showing an example of the gate section, and Fig. 3
The figure is a time chart showing the operation of the gate section, and FIG. 4 is a block diagram showing one embodiment of the present invention. 1, 2...roller, RTM...gate, PS ₁₆ ,
PS ₂₃ , PS ₂₅ ...Photo sensor, 10, 11, 21...
...Photosensor amplifier, 12...Tip detection circuit,
13... Trailing edge detection circuit, 14, 15... AND gate, 16... Inverter, 17... Gate control circuit, 18... Banknote discrimination section, 19... Gate switching memory, 22... Banknote interval detection circuit, 23... Standard value setting circuit, 24... Comparison circuit.

Claims (1)

[Scope of Claims] 1. A feeding mechanism that feeds out banknotes that have been inserted in bulk by a user one by one at intervals, and a fixed length device that determines the authenticity and denomination of the banknotes fed by the feeding mechanism. a discrimination unit having a conveyance path; a gate unit that sorts banknotes according to the authenticity determination result of the discrimination unit; and a gate unit that transports the genuine banknotes sorted by the gate unit to a storage unit where the genuine banknotes are temporarily accumulated and stored. a storage conveyance path; a return conveyance path that conveys the counterfeit banknotes sorted by the gate section to the banknote return slot; a sensor provided in the path from the feeding mechanism to the discrimination section that detects the interval between banknotes; a comparison section that receives a detection output and detects that the interval between bills sequentially dispensed and transferred by the dispensing mechanism is smaller than the bill transfer interval corresponding to the bill sorting operation of the gate section; and detection by the comparison section. a storage means for storing an output; a first sensor for detecting that the banknotes discriminated by the discrimination unit reach the gate unit; and a first sensor for detecting that the banknotes sorted by the gate unit are transported to the return conveyance. The second one detects that the vehicle has been transported to the roadside.
and a gate control means for holding and controlling the gate position of the gate section so as to distribute the banknotes that have passed through the discrimination section to the storage and conveyance path side, and the feeding mechanism includes at least one of the first and second gates. The gate control means feeds the next banknote to the discrimination section before the tip of the previous banknote reaches the sensor, and the gate control means sends the next banknote from the discrimination section at the time when the arrival of the banknote is detected by the first sensor. The gate section is switched to the return conveyance path side when the discrimination result of fake banknotes is output or when the storage means stores that the bill interval is smaller than the transfer interval corresponding to the sorting operation of the gate section. Also, when the second sensor detects that the bill has been conveyed to the return conveyance path, the switched gate section is returned to the storage conveyance path, and counterfeit banknotes and sorting storage processing is performed. A banknote handling device characterized in that banknotes that cannot be returned are returned to a user via the return conveyance path.