JPH083858B2 - Bill validator - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bill validator used in an automatic vending machine or the like.

2. Description of the Related Art FIGS. 3 to 8 show a conventional example of a bill validator mounted on a vending machine, etc., FIG. 3 is a receipt bill acceptance state diagram, and FIG. 5 is a stacker return. FIG. 8 is an operation state diagram and a flow chart diagram at the time of returning. The operations of depositing and returning from the stacker in these conventional examples will be described.

As shown in FIG. 3, when a bill is inserted from the slot 1, the deposit detection optical sensor 2 detects the deposit of the bill, and the transport pulleys 5 and 6 are interlocked with a transport motor (not shown). With the rotation of 7 and 7, the back surface of the timing belt 8 and the pressing force of the pressing roller 9 start the conveyance of the bill.

When the conveyance of the bill is started, the authenticity of the bill is identified while passing through the identification block 3, and when the bill is identified as false,
The conveyance motor performs a reversing operation, and the bill is returned to the slot 1. When it is identified as true in the identification, it is further conveyed through the conveyance passage 4, the bill is conveyed to the bill passage 20 by the conveyance rollers 19a and 19b in the stacker 18, and the bill end passes through the detection sensor 28, The transport operation is completed.

After the carrying operation is completed, a slide plate 29 for forming the bill holding guide rails 22 at both ends in the width direction as shown in FIG.
However, by performing the stroke operations a and b so as to intersect with the guide plate 21 side forming one of the passages, the bills 23A in the passage 20 are moved to the stacking portion 23 side, and the storing operation is completed.

Next, the operation for returning the banknotes 23 accumulated in the stacker 18 will be described with reference to FIGS. 5 and 6. First, when the return command is input from the control side, the stacker 18 slides. The guide rail 22 of the plate 29 moves to the same plane as the guide plate 21, and the return roller 2 then protrudes to the banknote 23 side accumulated by the suction operation of the solenoid 25 (arrow C) (arrow D). . Then, in the next step, the return roller 24 and the conveyor belt 8 on the main body side are simultaneously started to rotate in the return direction, so that the first banknote 23 of the banknotes 23 accumulated is closest to the guide plate 21.
The rotational force of the return roller 24 is transmitted to A, is guided from the stacker 18 to the conveyance path 4, and is conveyed as it is, and the insertion port 1
Will be returned until.

Further, in order to surely return only one banknote from the stacker 18 to the transport passage on the main body side 30, when a plurality of banknotes are transported to the exit of the stacker 18, it is prevented and one banknote is surely returned. A mechanism is provided for separating only. This mechanism includes a timing belt 8 that rotates in the banknote transport direction, and a tension spring 17 for the forward roller 15 that rotates in the forward direction by pressing the timing belt 8 with the transport belt 4 separated from the timing belt 8. It is composed of a reversing roller 16 that obtains a rotational force in the reverse direction with respect to the forward roller 15 by being brought into pressure contact with each other. The bill 23A is moved in the returning direction by the conveying force on the timing belt 8 side, but the second and subsequent bills are returned downward due to the reversing force of the reversing roller 16 overcoming the friction between the bills. Prevents the return of multiple bills.

Problems to be Solved by the Invention In the above conventional depositing operation and returning operation from the stacker, the vending machine is used in addition to the temperature fluctuation and dust / dirt / rainwater effects under outdoor installation which is a usage environment peculiar to the vending machine. Even if the bill has extreme folds or tears, all bills accepted as genuine bills must be returned from the stacker 18, but at the reversing roller 16 of the bill separating mechanism, as shown in FIG. In addition, if the tip of the bill is extremely bent toward the reversing roller 16 or if there is damage such as tearing at the tip, even if the conveying force is applied from the stacker 18 by the return roller 24 to the main body side 30
There is a case where the sheet is not conveyed to the conveying passage 4 and is stopped at the reversing roller 16 part. At this time, as shown in the flow chart of FIG. 8, since the leading edge of the bill does not reach the optical sensor 32 even after a predetermined time has passed, the time is over (FIG. 8g) and the return jam is processed.
At the same time as sending the abnormal signal, the machine will be stopped (Fig. 8h).

The present invention eliminates banknote jams that occur in this banknote separation mechanism section, and causes the banknote to be reliably returned to the customer who requested the return from the stacker, thereby causing a financial trouble with the customer and a reduction in the operating rate due to machine stoppage. It will greatly improve.

Means for Solving the Problems The present invention, in order to solve the above problems, a return banknote separating mechanism provided at the exit from the stacker, and a forward roller that rotates in the same direction as the banknote return direction. , A reversing roller for separating banknotes, which always obtains a rotational force in the reverse direction from the forward roller by maintaining a pressure contact state with a tension spring, and a shaft of the forward roller. An arm that connects the reversing roller to a forward roller so that the reversing roller rotates about a center, and a solenoid that rotates the reversing roller toward the opposite side of the banknote with the shaft of the forward roller as a fulcrum. It is configured by.

Action The first cause of the jamming phenomenon of banknotes in the returning operation is that the reversing roller, which rotates in the reverse direction to the conveying direction of the returning banknotes, protrudes into the conveying path, and the tip of the returning banknotes is extremely extreme. When the reversing roller portion cannot be breached and it becomes clogged due to the fact that the reversing roller portion is bent or damaged, the structure and operation described in the above-mentioned means are combined, and the solenoid is the first cause. Since the roller can be rotated to the side opposite to the conveyance path, there are no obstacles to the bill conveyance until then, and the bill can break through the reversing roller portion.

Embodiment FIG. 1 and FIG. 2 show an embodiment of the present invention.
Since the figure shows a return operation state diagram from the stacker and corresponds to FIG. 5 of the conventional example, the same parts are designated by the same reference numerals.

FIG. 2 is a flow chart of the processing operation when a return jam occurs in the embodiment of the present invention shown in FIG. 1, and corresponds to FIG. 8 of the conventional example.

First, the configuration in FIG. 1 will be described. Since this figure shows a return state diagram, as shown in FIG.
Slider 29 of the stacker 18 (not shown in FIG. 1)
Is in a state where the guide rail 22 is moved to the position of the guide plate 21.

Reference numeral 24 is a return roller for pulling up the bills from the stacker 18 at the time of return to the transport passage 4 on the main body side 30, and 25 is a solenoid for moving the return roller 24. 23A is a return roller among the bills 23 accumulated in the stacker.
It is a banknote close to 24 and is returned in the return operation. Further, 7 is one of pulleys for driving the timing belt 8, which is provided at the return exit of the stacker 18, and the banknote separating reversing roller 16 is installed across the transport passage 4.

The reversing roller 16 is normally pressed by the spring 32 in the arrow E direction, but is configured to rotate in the arrow direction around the axis of the forward roller 15 via the arm 27.
It is adapted to be rotated to a position (indicated by a solid line) protruding from the transport passage 4 by suction of the solenoid 33. The reversing roller 16 is in pressure contact with the forward roller 15 by the tension spring 17 in order to obtain a reverse force, and is configured to always rotate in a direction reverse to the forward roller 15.

Further, 31 is an optical sensor provided between the reversing roller 16 and the forward roller 15 for bill detection.

In the embodiment configured as described above, the operation when the normal return operation is normally executed is the same as the operation described in the above-mentioned conventional example, and therefore the description thereof is omitted.
The operation when a return jam occurs in a part will be described below.

First, if you input a return command from the control side,
The slide plate 29 moves, and the banknotes 23 that have been accumulated are held down.
The guide plate 21 is contacted while being pressurized by 26.

Next, the return roller 24 is attracted by the solenoid 25.
Passes over the guide plate 21, moves to the banknote 23 side, and comes into contact with the banknote 23 (see FIG. 6).

Further, as the next step, the conveyance motor of the main body 30 is rotated at the same time as the return roller 24, and the timing belt 8 starts rotating in the return direction.
Transport of 23A starts (arrow G).

At this time, the banknote separating mechanism provided at the exit of the stacker 18 which is interlocked with the timing belt 8 also operates.
That is, the reversing roller 16 that is in pressure contact with the forward roller 15 by rotating the forward roller 15 that is in pressure contact with the timing belt 8 (arrow H) is
It rotates in the opposite direction to the transport direction of. In such an operation, the bill 23A is pulled up by the return roller 24 toward the return exit portion.

However, at this time, as shown in FIG. 7, the tip of the bill 23A hits the reversing roller 16 and a braking force exceeding the pulling force is generated on the returning roller 24, and when it stops, or the buckling of the bill occurs and the reversing occurs. If the paper is not conveyed above the roller 16, it does not reach the optical sensor 31 even after a lapse of a predetermined time (Fig. 2a), and therefore it is determined that the reverse roller 16 has jammed the bill.

In this case, once stop the transport operation in the return direction,
The solenoid 33 is attracted and the reversing roller 16 is taken out of the transport passage 4 (FIG. 2b).

The reversing roller 16 that caused the bill 23A to stop here
Is to be released from the transport passage 4, the return operation is started again (FIG. 2C), and when the leading edge of the bill 23A reaches the optical sensor 31, the transport of the bill 23A is stopped and the transport passage 4 is temporarily stopped. The solenoid 33 is turned off to restore the reversing roller 16 that has been released and released. (The reversing roller 16 is at the position indicated by the broken line).

At this point, the bill jamming phenomenon caused by the reversing roller 16 is released, and the bill is stopped at the position of the optical sensor 31 beyond the reversing roller 16.

Then, by reversing the conveyance motor (Fig. 2e) and continuing the returning operation, the bills are normally returned in the conveyance passage 4 and the return to the insertion slot 1 is completed (Fig. 2). f).

Further, in these series of operations, since the reversing roller 16 is moved out of the conveying passage 4, the jammed state of the bills in the reversing roller 16 part can be eliminated and the bill can be conveyed in the returning direction. There is a possibility that a plurality of banknotes will be pulled up in series with the banknote 23A that does not work for separating the banknotes that have risen, which is the function of
Even if the bills pass through, the bills are temporarily stopped at the position of the optical sensor 31, which is provided before the forward roller 15 that can obtain the next conveying force, so that a plurality of bills are temporarily turned over by the reversing roller 16.
Even if it exceeds the section, the following operation (Fig. 2b)
Since the reversing roller 16 performs the returning operation from the state in which the reversing roller 16 has returned to the conveying path 4, only the bill 23A is pulled up, and the remaining bills are separated from 23A and conveyed in the stacker direction (below the reversing roller). Therefore, it becomes possible to reliably return the banknotes from the stacker 18 one by one without impairing the original banknote separating function.

With the above-mentioned operation, in the case of the conventional example, even if the bill is in a special state where the tip is extremely folded or broken, which was processed as "jamming" without being able to cross the reversing roller 16, the reversing roller Since it is possible to exceed 16 copies, the refund operation can be greatly stabilized.

EFFECTS OF THE INVENTION As described above, according to the present invention, the reversing roller can be rotated in the outward direction of the conveying path by the suction of the solenoid, so that the following effects can be obtained.

(1) Even if the returned banknotes are jammed at the reversing roller unit, by making the reversing roller movable, the jamming can be eliminated and the bills can be normally returned.

(2) Since the return operation is stable against folding and breaking, the range of usable banknotes can be greatly expanded.

(3) Financial troubles related to return with customers can be greatly improved.

(4) The operating rate of the machine can be improved.

[Brief description of drawings]

FIG. 1 is a sectional configuration diagram showing a return operation state from a stacker in one embodiment of the present invention. FIG. 2 is a flow chart of the clogging treatment operation according to the embodiment of the present invention.
FIG. 3 is a cross-sectional configuration diagram showing a receiving state of deposited banknotes in a conventional example, and FIGS. 4A to 4C are sectional views showing a process of storing deposited banknotes in a stacker in a transverse section, and FIG. It is a section lineblock diagram showing the return operation state in a prior art example. FIG. 6 is a cross-sectional view showing a returning operation state in a cross section of the stacker portion. FIG. 7 is a cross-sectional configuration diagram showing a state in which the returned bill hits the reversing roller and is jammed. FIG. 8 is a flow chart when the returned bills are jammed in the conventional example. 1 ... Billing slot, 2 ... Payment detection optical sensor, 3
…… Identification block, 4 …… Conveying passage, 5,6,7 …… Conveying pulley, 8 …… Timing belt, 9,10,11,12 …… Pressing roller, 15 …… Progressive roller, 16 …… Reverse roller, 17 ...
… Tension spring, 18 …… Stacker, 19a, 19b …… Transport roller, 20 …… Bill passage, 21 …… Guide plate, 22 …… Guide rail, 23 …… Stored bill, 24 …… Return roller, 25… … Return roller solenoid, 26 …… Holding plate, 27 …… Arm,
28 …… Storing detection optical sensor, 29 …… Slide plate, 30…
… Main body block, 31 …… Optical sensor, 32 …… Spring, 33
...... Solenoid for driving the reversing roller.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshifumi Tamura 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP 61-122792 (JP, A)

Claims (3)

[Claims] 1. A stacking mechanism for returning returned banknotes is provided at an exit of a stacker capable of stacking deposited banknotes in order and returning the stacked banknotes as needed. A forward roller that rotates in the same direction,
A reversing roller for separating bills, which constantly obtains a rotational force in the reverse direction from the forward roller by keeping a pressure contact state with a tension spring, and this reversing roller An arm connecting the reversing roller to a forward roller so as to rotate about an axis, and a solenoid for rotating the reversing roller toward the side opposite to the bill passage with the shaft of the forward roller as a fulcrum. A bill validator constituted by and. 2. A bill validator in which an optical sensor for detecting bills returned from a stacker is installed on the conveying path between the reversing roller and the forward roller according to claim 1. 3. The solenoid according to claim 2 conveys the bill to a position of an optical sensor provided between the reversing roller and the forward rotating roller in a state where the reversing roller is rotated toward the side opposite to the passage of the bill. Then, the bill discriminating apparatus configured to restart the returning operation with the reversing roller returned to the conveying passage side.