JP2007279896A - Bill authentication device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the number of part items and the manufacturing process by performing output adjustment of a reflection optical sensor without carrying a reference paper into a bill carrying passage and dispensing with a shutter means as an independent part. <P>SOLUTION: An end portion 28 of a rotary member 20 is protruded into a bill carrying passage 3 in a position opposed to reflection optical sensors 11 and 12, whereby reflected lights from reference reflecting members 30 and 31 are detected by the optical sensors 11 and 12 to adjust the outputs of the sensors 11 and 12, and the bill carrying passage 3 is blocked by bill extraction prevention members 40 and 41. The end portion 28 of the rotary member 20 is recessed from the bill carrying passage 3 to open the bill carrying passage 3, whereby passing of an input bill is permitted, and the authenticity of the passing bill is determined by the optical sensors 11 and 12. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a bill discriminating device that discriminates the authenticity of a bill, and more particularly to an improvement of a bill discriminating device that discriminates the authenticity of a bill using a reflective optical sensor.

  Conventionally, in a bill discriminating apparatus for discriminating whether a bill is true or false, a pair of reflective optical sensors composed of light emitting and receiving elements are arranged opposite to each other across the bill transport path, and are thereby inserted into the bill transport path, and There is provided a banknote that is determined based on the output value of the above-described reflective optical sensor as to whether the bill passes through the reflective optical sensor.

In the conventional banknote recognition apparatus using such a reflection type optical sensor, it is necessary to adjust the reference output at the time of maintenance and inspection in order to cope with sensor deterioration and the like. When adjusting the output, the conventional banknote recognition apparatus transports a reference paper (for example, white paper) having a constant reflectance in the banknote transport path, thereby detecting the sensor output transmitted from the reflective optical sensor. The output was adjusted.

Moreover, in the conventional banknote identification device described above, an independent part shutter means for opening and closing the banknote transport path is disposed in order to prevent the inserted banknote from being pulled out.

By the way, in the conventional banknote recognition apparatus described above, when performing the output adjustment of the reflection type optical sensor described above during maintenance inspection, the output of the reflection type optical sensor is adjusted by conveying the reference paper into the banknote conveyance path. In addition, since the adjustment work is performed manually, there is a difficulty that is complicated.

Moreover, in the conventional banknote identification apparatus mentioned above, the shutter means as an independent part is arrange | positioned in a banknote conveyance path in order to prevent drawing of a banknote, etc. For this reason, there are many parts number of a banknote identification apparatus, and manufacture. There was a difficulty in increasing the process and manufacturing costs.

In view of the above-described circumstances, the present invention can adjust the output of the reflective optical sensor without transporting the reference paper into the banknote transport path, and eliminates the need for the shutter means as an independent part, and the number of parts and manufacture. It aims at providing the banknote identification device which made it reduce a process.

  In order to solve the above-described problems, in the present invention, in a bill identifying device in which a reflective optical sensor including a light emitting element and a light receiving element is disposed facing a banknote transport path, A substantially arc-shaped rotating member formed with a reference reflecting member and a bill withdrawal preventing member that reflects light emitted from the light emitting element toward the light receiving element is disposed in the bill conveyance path so as to be freely retractable. Thus, the tip of the rotating member is protruded into the bill conveyance path at the position where the reflective optical sensor faces, so that the light receiving element detects the reflected light from the reference reflective member by the reflective optical sensor. Then, the output of the amount of light emitted from the reflective optical sensor is adjusted, the banknote transport path is closed by the banknote withdrawal preventing member, and the tip of the rotating member is placed in the banknote transport path. By et escape opening the bill transport passage, and so as to the authenticity determination of the bill passes by the reflective optical sensors thereby to permit passage of the inserted banknote.

  In this invention, a substantially arc-shaped rotating member in which a reference reflecting member and a bill withdrawal preventing member are formed at the front end portion is disposed in the bill conveyance path at a position where the reflective optical sensor faces. By projecting the front end portion into the bill conveyance path at the position where the reflective optical sensor faces, the reflective optical sensor detects the reflected light from the reference reflective member and adjusts the output of the reflective optical sensor. The bill conveyance path is closed by a banknote withdrawal preventing member, and the tip end portion of the rotating member is escaped from the banknote conveyance path to open the banknote conveyance path, thereby allowing the inserted banknote to pass and the reflection type. Since the authenticity of bills passing by the optical sensor is determined, the output of the reflective optical sensor can be adjusted without transporting the reference paper into the bill transport path. The output of the reflective photosensor can be adjusted at any place and time, and the bill withdrawal prevention member also serves as a shutter means, which can greatly reduce the number of parts and the manufacturing process. It is possible to provide a banknote identification device that can greatly improve the cost and the maintenance and inspection workability.

  Hereinafter, an embodiment of the bill recognition device according to the present invention will be described in detail.

  FIG. 1 is a fragmentary conceptual view of a bill discriminating apparatus 1 according to the present invention.

  In the banknote identification device 1, a banknote transport path 3 is formed in communication with the banknote insertion slot 2.

And on the upper and lower surfaces of the banknote transport path 3, a pair of upper and lower banknote transports that faces the banknote transport path 3 and transports the inserted banknote 4 inserted from the banknote slot 2 along the banknote transport path 3. Rollers 5 and 6 are provided.

On the other hand, a part of the banknote transport path 3 described above is provided with banknote authenticity determination means 10 for determining the authenticity of the banknote passing through the banknote transport path 3.

This bill authenticity discrimination means 10 is composed of reflection type photosensors 11 and 12 composed of light emitting and receiving elements arranged so as to face the bill conveyance path 3 and face each other as in the conventional case.

  And in the banknote conveyance path 3 of the position which the said reflection type optical sensors 11 and 12 face, the rotation member 20 which can be protruded and retracted in the said banknote conveyance path 3 which is a main component of this invention is arrange | positioned.

As shown in FIG. 2 which is a conceptual diagram of FIG. 2 as viewed in A of FIG. 1 and a conceptual perspective view of the rotating member 20, the rotating member 20 is configured to rotatably support the arc-shaped portion 21 and the arc-shaped portion 21. And a pair of support portions 22 having an L-shaped cross section.

And the rotating shaft 23 is each fixed to the part corresponding to the center position of the said arc-shaped part 21 at the end of this pair of support part 22. As shown in FIG. The rotary shaft 23 is rotatably supported by a bearing member 24, and is connected to a rotation driving means 27 including a pulley 25 fixed to the end 23a and a cocked belt 26 wound around the pulley 25. ing.

According to such a rotating member 20, when the rotation driving means 27 is driven to rotate by a driving means such as a motor, the arcuate portion 21 rotates as indicated by an arrow B via the rotating shaft 23 and the support member 22. It becomes.

  On the other hand, as shown in FIG. 3, the upper and lower surface central portions of the tip portion 28 of the arc-shaped portion 21, which appears and disappears in the bill transport path 3 at the position where the reflective optical sensors 11 and 12 face, For example, a pair of banknote pulling members are formed which are formed with reference reflecting members 30 and 31 colored white, and which are adjacent to the reference reflecting members 30 and 31 and prevent the reference reflecting members 30 and 31 from being pulled out. Prevention protrusions 40 and 41 are formed.

  Further, a reference reflecting member cleaning means 52 comprising a pair of reflecting member cleaning rollers 50 and 51 is arranged in pressure contact with the arcuate portion 21 of the rotating member 20 at a position where the reference reflecting members 30 and 31 pass through. The reference reflecting members 30 and 31 are cleaned each time the arcuate portion 21 is rotated by the pair of reference reflecting member cleaning rollers 50 and 51. The pair of reflecting member cleaning rollers 50 and 51 are urged to approach each other by a pair of coil springs 80 disposed at both ends as shown in FIG.

In FIG. 1, reference numerals 60 and 61 denote banknote detection sensors that detect inserted banknotes 4.

  Next, the operation of the rotating member 20 according to the present invention described above will be described, and the configuration will be described in more detail.

In the banknote recognition apparatus 1, when the output adjustment of the reflection type optical sensors 11 and 12 is performed at the time of maintenance and inspection, the rotation driving unit 27 shown in FIG. 3 is rotationally driven by a driving unit such as a motor. As shown in FIG. 4, the tip end portion 28 is rotated about the shaft 23, and the bill conveyance path 3 at a position where the reflective optical sensors 11 and 12 face through a hole (not shown) formed in the bill conveyance path 3. It protrudes inside, that is, between the pair of reflective optical sensors 11 and 12.

As described above, when the distal end portion 28 of the rotating member 20 is projected between the pair of reflective optical sensors 11 and 12, the reference reflecting members 30 and 31 are respectively shown in FIG. While facing the corresponding reflective optical sensors 11, 12, the banknote withdrawal preventing projections 40, 41 block a part of the banknote transport path 3.

As shown in FIG. 5, after the reference reflecting members 30, 31 face the corresponding reflective optical sensors 11, 12, and the banknote withdrawal preventing projections 40, 41 block a part of the banknote transport path 3. The output can be adjusted by driving the reflective photosensors 11 and 12 and detecting the sensor output transmitted from the reflective photosensors 11 and 12, and the banknote withdrawal preventing projections 40, 41 prevents the inserted banknotes from being pulled out at the same time.

4, reference numeral 70 denotes ball plunger means for positioning and stopping the rotating member 20 at the rotational position shown in FIG. 5. This ball plunger means 70 is a ball having a resilient force disposed on the bearing 24. The plunger 71 is composed of a first determining hole 72 and a second positioning hole 73 formed in the support member 22 of the rotating member 20, and the ball plunger 71 is in the first positioning position as shown in FIG. 4. When fitted in the hole 72, the rotating member 20 stops at the position of the output adjustment mode of the reflection type optical sensors 11, 12 and the closing mode of the bill conveyance path 3.

Whether or not the rotating member 20 has stopped at the positions of the output adjustment mode of the reflection type optical sensors 11 and 12 and the closing mode of the bill conveyance path 3 is determined based on the first member formed on the support member 22 of the rotating member 20. This is determined by detecting the notch 80 by the optical detection sensor 81.

In addition, when the front-end | tip part 28 of the rotating member 20 is made to protrude between a pair of reflection type optical sensors 11 and 12, the said pair of reflection type photosensors 11 and 12 are respectively corresponding to the reference | standard reflection member cleaning rollers 50 and 51 corresponding. The cleaning is achieved by pressing.

Next, from the output adjustment mode of the reflection type optical sensors 11 and 12 and the blockage mode of the banknote transport path 3 shown in FIG. 4, the rotation driving means 27 shown in FIG. 3 is rotated in the opposite direction by a driving means such as a motor. As a result, when the distal end portion 28 of the rotating member 20 is rotated in the direction of arrow C about the shaft 23 as shown in FIG. 6 and reaches the rotational position shown in FIG. 7, the ball plunger 71 is now in the second positioning position. At the same time, the optical detection sensor 81 detects the second notch 82, so that the rotation of the rotary member 20 stops at that position.
According to the rotation stop position of the rotating member 20 shown in FIG. 7, the tip end portion 28 of the rotating member 20 escapes from the banknote transport path 3, thereby blocking the banknote transport path 3 by the banknote withdrawal preventing projections 40 and 41. Since it cancels | releases, the said banknote conveyance path 3 is opened. Accordingly, the state shown in FIG. 7 is a normal banknote discrimination mode, whereby the passage of inserted banknotes is allowed and the authenticity of banknotes passing by the reflective optical sensors 11 and 12 is determined.
In addition, although the said Example explained in full detail about the case where the pair of upper and lower reflection type optical sensors 11 and 12 were arrange | positioned on both sides of the banknote conveyance path 3, this invention is not limited to the said Example, A banknote conveyance path However, the present invention may be applied to a case where one reflection type photosensor is disposed at the stage 3.

  In the above embodiment, as shown in FIG. 3, the rotation driving means 27 for rotating the rotation member 20 is disposed on each of the pair of left and right rotating shafts 23. However, the present invention is not limited to the above embodiment. Without being limited to this, it may be arranged only on one of the rotating shafts 23.

  As described above, the banknote recognition apparatus according to the present invention can adjust the output of the reflective optical sensor without transporting the reference paper into the banknote transport path, and eliminates the need for shutter means as an independent component. It is suitable for a bill discriminating apparatus that reduces the number of parts and the manufacturing process.

FIG. 1 is a fragmentary conceptual view of a bill discriminating apparatus according to the present invention. FIG. 2 is a conceptual diagram of FIG. FIG. 3 is a conceptual perspective view of a rotating member. FIG. 4 is an essential part enlarged view showing the operation of the banknote recognition apparatus according to the present invention. FIG. 5 is an enlarged view of a main part of FIG. FIG. 6 is an essential part enlarged view showing the operation of the banknote recognition apparatus according to the present invention. FIG. 7 is an enlarged view of a main part showing the operation of the banknote recognition apparatus according to the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Banknote identification apparatus 3 ... Banknote conveyance path 11, 12 ... Reflection type optical sensor 20 ... Rotating member 21 ... Arc-shaped part 22 ... Bearing part 23 ... Rotating shaft 27 ... Rotation drive means 28 ... Tip part 30, 31 ... Standard reflection Members 40, 41 ... banknote withdrawal preventing projections 50, 51 ... reflecting member cleaning roller 52 ... reference reflecting member cleaning means

Claims (4)

In the bill discriminating apparatus in which a reflective optical sensor composed of a light emitting element and a light receiving element is arranged facing the bill transport path,
A substantially circular arc shape in which a reference reflecting member and a bill withdrawal preventing member that reflect light emitted from the light emitting element toward the light receiving element are formed at a tip portion in the bill conveyance path at a position where the reflective optical sensor faces. The rotating member of
Accordingly, the leading end portion of the rotating member is projected into the bill conveyance path at the position where the reflective optical sensor faces, so that the light receiving element detects the reflected light from the reference reflective member by the reflective optical sensor. The output of the light emission amount of the reflective optical sensor is adjusted, the bill conveyance path is closed by the bill withdrawal prevention member, and the tip end portion of the rotating member is escaped from the bill conveyance path to A bill discriminating apparatus which is opened, thereby allowing the inserted bill to pass and allowing the reflection type optical sensor to discriminate the bill passed.
The rotating member has an arc-shaped portion;
It consists of a support part that rotatably supports the arc-shaped part,
A rotating shaft is fixed to the support part,
The rotary shaft is connected to a rotation driving means for rotating the rotary member,
2. The bill identifying device according to claim 1, wherein a reference reflecting member cleaning means for cleaning a reference reflecting member provided on the rotating member is provided at a position spaced apart from the rotating shaft by a predetermined distance.
The bill recognizing device according to claim 2, wherein the reference reflecting member cleaning means includes a reflecting member cleaning roller that presses against the arc-shaped portion.
The bill identifying device according to claim 1, wherein the bill withdrawal preventing member is provided with a bill withdrawal preventing projection avoiding the reference reflecting member.

Images