JP5256492B2 - Waterproof structure of banknote insertion part and banknote handling device - Google Patents

Description

  The present invention relates to an improvement of a bill insertion unit equipped in a bill handling device such as various vending machines having a function of depositing bills, a deposit / withdrawal device, a change machine, and the like, in particular, a bill passage sensor equipped in a bill insertion slot. The present invention relates to a waterproof structure for a bill insertion unit that can effectively drain rainwater that is about to enter a detection unit, and a bill handling device.

A banknote handling device with a deposit function for receiving inserted banknotes and a withdrawal function for dispensing banknotes as change or withdrawal is equipped in banknote handling devices such as various vending machines, deposit and withdrawal devices, and money changers. The banknote handling apparatus is provided with a waterproof structure for preventing rainwater from entering the banknote slot.
FIG. 4A is an external perspective view of a bill insertion unit 50 at a bill insertion slot of a conventional bill processing apparatus, and FIG. 4B is a plan view thereof. FIG. 5 is a cross-sectional view for explaining erroneous detection due to rainwater when the bill insertion unit 50 is mounted on the bill processing apparatus. The banknote insertion unit 50 includes a banknote insertion slot 7 that guides banknotes to the inside of the banknote handling apparatus 17, a banknote guide tray 1 that guides the bottom surface of a banknote inserted into the banknote insertion slot 7, and drainage formed in the banknote guide tray 1. A hole 6, a sensor installation hole 2 formed in the bottom surface of the banknote guide tray 1 on the downstream side of the banknote insertion direction with respect to the drainage hole 6, a banknote passage sensor 8 (not shown) disposed in the sensor installation hole 2, A step recess 4 formed on the bottom surface of the bill guide tray 1 along the periphery of the sensor installation hole 2, and a transparent plate 3 fitted and arranged in the step recess 4 to cover the detection surface above the bill passage sensor 8. , And is configured. Rainwater 9 travels along the surface of the housing of the banknote handling apparatus as indicated by arrow A and accumulates in part B to form water droplets 10. When the rainwater 9 further flows, the water droplet 10 falls on the transparent plate 3 due to gravity. Since the transparent plate 3 is highly hydrophilic, a water film 11 is formed on the surface of the transparent plate 3 as shown in FIG. For example, when the bill passage sensor 8 is a reflective sensor, there are a light emitting unit 12 and a light receiving unit 15 inside. When no bill is inserted, the light 13 emitted from the light emitting unit 12 is refracted by the transparent plate 3. Draw a solid optical path. At this time, light is not received by the light receiving unit 15, so that it is recognized that no banknote is inserted. However, when the water film 11 is formed on the surface of the transparent plate 3 by the rainwater 9, the light emitted from the transparent plate 3 is further refracted and scattered or irregularly reflected as light 14 as shown by the dotted line. In some cases, the light enters the portion 15. As a result, the banknote handling apparatus determines that a banknote has been inserted, and a malfunction occurs such as driving a motor that transports the banknote to the inside.
Further, Patent Document 1 discloses a banknote recognition apparatus that prevents liquids that have entered from a banknote insertion slot from flowing into an apparatus equipped with a banknote identification apparatus.
Japanese Patent No. 3291704

In the prior art disclosed in Patent Document 1, the liquid material poured from the bill insertion slot is first introduced to the outside of the bill recognition device via a liquid discharge hole formed in an inclined surface constituting the bottom surface of the bill insertion slot. The liquid material that has been quickly discharged and has entered the apparatus main body is once collected in a liquid material collecting section disposed below the bottom surface of the apparatus main body, and then liquid material guiding means connected to the liquid material collecting section. Since it is configured to be quickly discharged to the outside of the device on which the banknote identification device is mounted, it is possible to prevent liquid from entering from the outside, but the banknote insertion port becomes narrow and operability is poor. There is a problem of becoming.
The present invention has been made in view of such problems, and the sensor installation hole and the drainage hole are communicated with each other through the groove, and the water film formed on the transparent plate that closes the sensor installation hole is drained through the groove. It aims at providing the banknote processing apparatus provided with the banknote guide tray which reduced the malfunction by a banknote passage sensor, maintaining the present operativity by guiding to a hole and removing the film | membrane of water.

In order to solve this problem, the present invention provides a bill guide tray for guiding a bill lower surface inserted into a bill insertion slot for guiding a bill into the bill handling device, and drainage formed on the bill guide tray. A bill insertion part waterproof structure comprising a hole and a sensor installation hole formed on the bottom surface of the banknote guide tray downstream of the drainage hole in the banknote insertion direction, wherein the sensor installation hole and the drainage hole communicate with each other. It is characterized by having a groove portion.
Liquid that enters from the outside (for example, rainwater) is most likely to enter the bill guide tray that is exposed outside the apparatus. The bill guide tray is provided with a sensor installation hole for guiding light to a bill passage sensor that detects that a bill has been inserted. However, when rainwater is sprayed over a long period of time, it gradually travels through the gaps in the banknote guide tray, and rainwater enters the interior, water drops are generated and fall into the sensor installation holes, and water drops are applied to the banknote passage sensor. There is a risk of adhesion. Accordingly, in the present invention, a groove portion that connects the sensor installation hole and the drainage hole is formed in the bill guide tray, and water droplets attached to the sensor installation hole via the groove portion are absorbed by a capillary phenomenon and drained into the drainage hole. Thereby, the malfunction by a banknote passage sensor can be reduced, maintaining the present operativity.

According to a second aspect of the present invention, the sensor installation hole has a stepped recess formed on the bottom surface of the bill guide tray along the periphery thereof, and is fitted and disposed in the stepped recess to cover the sensor installation hole. A transparent plate is arranged.
Liquid that enters from the outside (for example, rainwater) is most likely to enter the bill guide tray that is exposed outside the apparatus. The bill guide tray is provided with a sensor installation hole for guiding light to a bill passage sensor that detects that a bill has been inserted. Since this bill installation sensor provided in the position which opposes this sensor installation hole is installed, a transparent board (glass board) is inserted in the surface, and rainwater does not enter. However, when rainwater is sprayed over a long period of time, the rainwater gradually enters the gap between the bill guide trays and enters the interior, so that water droplets are generated and fall onto the transparent plate. Since the transparent plate is highly hydrophilic, a film of water is formed on the surface. Thereby, there exists a possibility that light may be scattered or irregularly reflected, and a bill passage sensor may misdetect. Therefore, in the present invention, a groove portion that communicates the sensor installation hole and the drainage hole is formed in the bill guide tray, and the water film on the transparent plate is absorbed by the capillary phenomenon through the groove portion and drained into the drainage hole. Thereby, the malfunction by a banknote passage sensor can be reduced, maintaining the present operativity.

According to a third aspect of the present invention, in the state where the banknote guide tray is set, the transparent plate is disposed at a position higher than the drain hole.
Liquid tends to flow from a high position to a low position. So, in this invention, when a banknote guide tray is set, it arrange | positions so that a transparent plate may become higher than a drain hole. Thereby, drainage of liquid can be made easier.
According to a fourth aspect of the present invention, the shape of the drain hole is non-circular.
The liquid has the property of trying to become the minimum shape due to surface tension. That is, the shape with the smallest surface area is a circle. Therefore, when the drainage hole is circular, the drainage hole may be blocked by the liquid. Therefore, in the present invention, the drain hole is formed in a shape other than circular. This makes it difficult to form a liquid film in the drain hole.

According to the present invention, the groove portion communicating with the sensor installation hole and the drainage hole is configured in the banknote guide tray, and the water film on the transparent plate is absorbed through the groove and drained into the drainage hole. While maintaining operability, malfunctions caused by the bill passage sensor can be reduced.
Moreover, when the banknote guide tray is set, the transparent plate is disposed so as to be higher than the drainage hole, so that the liquid can be drained more easily.
In addition, since the drain hole has a shape other than circular, it is difficult to form a liquid film in the drain hole.

Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. However, the components, types, combinations, shapes, relative arrangements, and the like described in this embodiment are merely illustrative examples and not intended to limit the scope of the present invention only unless otherwise specified. .
Fig.1 (a) is an external appearance perspective view of the banknote insertion part in the banknote insertion slot of the banknote processing apparatus of this invention, FIG.1 (b) is the top view. In addition, it demonstrates as a case where the banknote insertion part 40 of this invention is mounted | worn with the banknote processing apparatus shown in FIG. 5, and attaches | subjects and demonstrates the same referential mark as FIG.
The banknote insertion unit 40 includes a banknote insertion slot 7 that guides banknotes into the banknote handling device 17, a banknote guide tray 1 that guides the bottom surface of a banknote inserted into the banknote insertion slot 7, and drainage formed on the banknote guide tray 1. A hole 6, a sensor installation hole 2 formed in the bottom surface of the banknote guide tray 1 on the downstream side of the banknote insertion direction with respect to the drainage hole 6, a banknote passage sensor 8 (not shown) disposed in the sensor installation hole 2, A step recess 4 formed on the bottom surface of the bill guide tray 1 along the periphery of the sensor installation hole 2, and a transparent plate 3 fitted and arranged in the step recess 4 to cover the detection surface above the bill passage sensor 8. , And a groove portion 16 that communicates the step recessed portion 4 and the drain hole 6.

  That is, the bill guide tray 1 is provided with a sensor installation hole 2 for guiding light to a bill passage sensor 8 that detects that a bill has been inserted. A transparent plate (glass plate) 3 is fitted on the surface of the sensor installation hole 2 in order to protect the bill passage sensor 8 provided at the opposing position. However, when rainwater is sprayed over a long period of time, the rainwater 9 travels along the surface of the housing of the banknote processing apparatus as indicated by the arrow A, and the water droplets 10 are generated in the part B and fall on the transparent plate 3. Since the transparent plate 3 has strong hydrophilicity, a film of water is formed on the surface. Thereby, there exists a possibility that light may be scattered or irregularly reflected, and the banknote passage sensor 8 may misdetect. The erroneous detection operation has been described with reference to FIG. Therefore, in the present invention, the groove portion 16 that communicates the sensor installation hole 2 and the drain hole 6 is formed in the banknote guide tray 1, and the water film on the transparent plate 3 is absorbed through the groove portion 16 to the drain hole 6. Drain. Thereby, the malfunction by a banknote passage sensor can be reduced, maintaining the present operativity.

  FIG. 2 is an enlarged view for explaining the configuration of the groove 16 that communicates the sensor installation hole 2 and the drainage hole 6. The same components will be described with the same reference numerals as in FIG. A drainage hole 6 is formed through the banknote guide tray 1 that guides the lower surface of the banknote inserted into the banknote slot. Further, the sensor installation hole 2 is formed on the bottom surface of the banknote guide tray 1 on the downstream side of the banknote insertion direction with respect to the drainage hole 6, and the step recess 4 is formed on the bottom surface of the banknote guide tray 1 along the periphery of the sensor installation hole 2. To do. And the transparent plate 3 which covers the detection surface of the banknote passage sensor 8 upper part in the level | step difference recessed part 4 is fittingly arrange | positioned. Further, the banknote guide tray 1 is formed with a groove 16 that communicates the step recess 4 and the drain hole 6. At this time, the groove portion 16 is configured to absorb the liquid on the transparent plate 3 by capillary action, and the transparent plate 3 is disposed at a position higher than the drain hole 6 in a state where the banknote guide tray 1 is set. preferable. The shape of the drain hole 6 is more preferably non-circular. In this embodiment, it is formed in a U shape, but other shapes may be used as long as it is non-circular. The arrow B indicates the direction in which water droplets flow.

  That is, in order to absorb the water film on the transparent plate 3, it is necessary to make the groove portion 16 thin so that the capillary phenomenon easily occurs. Thereby, the water film on the transparent plate 3 can be absorbed with a simple configuration. Further, since the liquid tends to flow from a high position to a low position, the transparent plate 3 is disposed so as to be higher than the drain hole 6 when the banknote guide tray 1 is set. Thereby, drainage of liquid can be made easier. In addition, the liquid has a property of attempting to have a minimum shape due to surface tension. That is, the shape with the smallest surface area is a circle. Therefore, when the drain hole 6 is circular, the drain hole 6 may be blocked by the liquid. Therefore, in the present embodiment, the drain hole 6 is formed in a shape other than a circle. This makes it difficult to form a liquid film in the drain hole 6.

  FIG. 3 is a cross-sectional view of FIG. 2 taken along line AA. 3A is a view when the water film 11 is not attached to the transparent plate 3, and FIG. 3B is a view when the water film 11 is attached to the transparent plate 3. FIG. In FIG. 3, the transparent plate 3 and the stepped recessed portion 4 are illustrated as having a gap. Further, the height of the surface of the transparent plate 3 is at least equal to or lower than that of the groove 16. Furthermore, as described above, when the banknote guide tray 1 is set, the transparent plate 3 is disposed so as to be higher than the drain hole 6. With the above configuration, when the water film 11 is formed on the transparent plate 3 as shown in FIG. 3B, water is sucked from the end portion a of the transparent plate 3 by the capillary of the groove portion 16. The water 11a is drained from the drain hole 6. As a result, the water film 11 attached to the surface of the transparent plate 3 is removed.

(A) is an external appearance perspective view of the banknote insertion part in the banknote insertion port of the banknote processing apparatus of this invention, (b) is the top view. It is an enlarged view for demonstrating the structure of the groove part 16 which connects the sensor installation hole 2 and the drainage hole 6. FIG. (A) (b) is sectional drawing when FIG. 2 is cut | disconnected by the AA line. (A) is an external appearance perspective view of the banknote insertion part in the banknote insertion port of the conventional banknote processing apparatus, (b) is the front view. It is sectional drawing for demonstrating the misdetection by rain water, when the banknote insertion part 50 is mounted | worn with a banknote processing apparatus. It is a schematic diagram explaining the operation | movement which detects incorrectly.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Banknote guide tray, 2 Sensor installation hole, 3 Transparent plate, 4 Step recessed part, 5 Rib, 6 Drain hole, 7 Banknote insertion port, 8 Banknote passage sensor, 9 Rain water, 10 Water drop, 11 Water film, 12 Light emission part , 13, 14 light, 15 light receiving part, 16 groove part, 17 banknote processing apparatus

Claims (5)

A banknote guide tray that guides the lower surface of a banknote inserted into a banknote insertion slot that guides banknotes into the banknote handling apparatus, a drain hole formed in the banknote guide tray, and a banknote guide on the downstream side of the banknote insertion direction from the drain hole. A waterproof structure of a bill insertion portion provided with a sensor installation hole formed on the bottom of the tray,
A waterproof structure for a bill insertion portion, comprising a groove portion communicating the sensor installation hole and the drainage hole.   The sensor installation hole has a stepped recess formed on the bottom surface of the banknote guide tray along the periphery thereof, and a transparent plate that is fitted and arranged in the stepped recess to cover the sensor installation hole is disposed. The waterproof structure of a bill insertion part according to claim 1 characterized by things.   3. The waterproof structure for a bill insertion portion according to claim 1, wherein the transparent plate is disposed at a position higher than the drainage hole in a state where the bill guide tray is set.   The waterproof structure of a bill insertion part according to any one of claims 1 to 3, wherein the drain hole has a non-circular shape.   A bill handling apparatus comprising the waterproof structure of the bill insertion portion according to any one of claims 1 to 4.

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