JPH07144792A - Paper sheet detector - Google Patents

Abstract

(57) [Summary] [Object] The present invention provides a paper sheet detection device capable of surely detecting the thickness of a paper sheet while having a simple and lightweight structure. [Structure] The present invention relates to a reference roller 21 arranged at a fixed position.
The paper sheet is passed between the detection roller 22 and the detection roller 22 that is in contact with the reference roller 21, and the detection roller 2 based on the thickness of the paper sheet
In the paper sheet detection device that detects the thickness of the paper sheet by transmitting the displacement of 2 to the thickness detection section 28 via the displacement transmission mechanism section 27 that supports the detection roller 22, the detection roller 22 A pressing roller 21 is provided on the upper part of the roller so as to be displaceable in the pressing direction and comes into contact with the detection roller 22 by its own weight to apply a pressing force to the reference roller 21 to the detection roller 22. With this configuration,
The thickness of the paper sheet can be accurately detected while suppressing unnecessary vibration of the displacement transmitting mechanism 27 and suppressing the bulge of the paper sheet, and the configuration can be simplified and the weight can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper sheet detecting device, and more particularly, to a paper sheet suitable for use in a place where bills are detected in a bill conveying system such as an automatic depositing machine (ATM). The present invention relates to a leaf detection device.

[0002]

2. Description of the Related Art For example, a banknote transport unit of an automatic teller machine includes an inspection unit for inspecting banknotes. This inspection unit is provided with a thickness detection sensor as a paper sheet detection device for detecting the taking of two bills and the application of tape.

A conventional example of such a thickness detecting sensor is shown in FIG.
Will be described with reference to.

A thickness detection sensor 50 shown in FIG. 9 rotatably supports a reference roller 51 that allows the banknote P to pass along the upper surface thereof and a detection roller 52 that is in contact with the reference roller 51 at the protruding end thereof, and has a rotating shaft 53. A detection lever 54 that rotates about a support shaft, a main body 55 that supports the rotation shaft 53 in parallel with the detection roller 52, and a displacement of the detection roller 52 that is incorporated in the main body 55 and that is caused by the thickness of the banknote P. MR (not shown) detected via lever 54 and rotary shaft 53
And a sensor. This MR sensor utilizes the anisotropic magnetoresistive effect of a ferromagnetic material, and measures the rotation angle of the rotating shaft 53, that is, the thickness of the bill P, by changing the magnetic field of a magnet attached to the rotating shaft 53. It is a thing.

In the thickness detecting sensor 50,
In order to suppress a detection error due to unnecessary vibration such as springing of the detection lever 54 and a bill P having a bulge, a tension spring 56 is attached between the detection lever 54 and the main body 55, and the detection roller 52 is connected to the detection roller 52. It is adapted to be pressed toward the reference roller 51 side.

Further, as shown in FIG. 10, there is also known a thickness detecting sensor 50A in which a compression spring 57 is attached between the main body 55 and a portion of the detecting lever 54 near the portion supporting the detecting roller 52. .

[0007]

However, in the case of the thickness detecting sensors 50 and 50A described above, the displacement of the detecting roller 52 is transmitted to the rotary shaft 53 through the detecting lever 54 which rotates. Considering that the thickness of the banknote P is very small, it is required to use a banknote P having high rigidity in order to eliminate the influence of the bending and twisting of the detection lever 54, which causes an increase in weight. Also, the banknote P
If it is attempted to improve the detection capability of the thickness, it becomes difficult to dispose and adjust the tension spring 56 and the compression spring 57.

[0008] Therefore, an object of the present invention is to provide a paper sheet detection device which can detect the thickness of a paper sheet with a simple and lightweight structure.

[0009]

The invention according to claim 1 is
A paper sheet is passed between a reference roller arranged at a fixed position and a detection roller that is in contact with the reference roller, and a displacement transmission mechanism section that supports the detection roller displacement of the detection roller due to the thickness of the paper sheet is provided. In the paper sheet detection device for detecting the thickness of the paper sheet by transmitting it to the thickness detection unit via the above, the detection roller is disposed above the detection roller so as to be displaceable in the pressing direction, and contacts the detection roller by its own weight. A pressing roller for applying a pressing force to the reference roller is provided to the lever detection roller.

According to the second aspect of the present invention, the paper sheet is passed between the reference roller arranged at a fixed position and the detection roller in contact with the reference roller, and the displacement of the detection roller due to the thickness of the paper sheet is caused. In a paper sheet detection device that detects the thickness of the paper sheet by transmitting the thickness to the thickness detection section via a displacement transmission mechanism section that supports this detection roller, it can be displaced in the pressing direction above the detection roller. And a pressing roller that contacts the detection roller by its own weight and is rotationally driven by a driving source to apply a pressing force to the reference roller to the detection roller, and the rotational force of the pressing roller is transmitted to the reference roller. And a belt transmission mechanism section that operates.

According to the third aspect of the present invention, the paper sheet is passed between the reference roller arranged at a fixed position and the detection roller in contact with the reference roller, and the displacement of the detection roller due to the thickness of the paper sheet is caused. In the paper sheet detection device for detecting the thickness of the paper sheet by transmitting the thickness to the thickness detection section through the displacement transmission mechanism section that supports the detection roller, each displacement arranged in the upper region of the detection roller is detected. A plurality of possible rotating rollers and a spring body for restraining the rotating rollers to the detection roller side and forcibly contacting each other and applying a pressing force to the reference roller via the detection rollers are provided. is there.

According to the fourth aspect of the present invention, the paper sheet is passed between the reference roller arranged at a fixed position and the detection roller in contact with the reference roller, and the displacement of the detection roller due to the thickness of the paper sheet is caused. In a paper sheet detection device that detects the thickness of the paper sheet by transmitting the thickness to the thickness detection section via a displacement transmission mechanism section that supports the detection roller, the sheet detection apparatus is arranged at a fixed position above the detection roller. An elastic roller is provided to bring an elastic body provided on the outer periphery into contact with the detection roller and apply a pressing force to the reference roller to the detection roller by the elastic force of the elastic body.

[0013]

The function of the present invention will be described below.

According to the paper sheet detection device of the first aspect,
Above the detection roller, which comes into contact with the reference roller arranged at a fixed position, is arranged so as to be displaceable in the pressing direction, and comes into contact with the detection roller by its own weight to apply a pressing force to the reference roller against the detection roller. Since the pressing roller for applying is provided, unnecessary vibration of the displacement transmission mechanism is suppressed by the action of the pressing roller, and the thickness of the paper sheet can be accurately detected while suppressing the bulge of the paper sheet. In addition, the rigidity of the displacement transmitting mechanism is small, and the configuration can be simplified and the weight can be reduced.

According to the paper sheet detection apparatus of the second aspect,
In addition to the configuration of the paper sheet detection device according to claim 1, since a belt transmission mechanism portion that rotationally drives the pressure roller by a drive source and transmits the rotational force of the pressure roller to the reference roller is provided, Friction with the detection roller can be reduced by the rotation, and the same action as the paper sheet detection device according to the first aspect can be more smoothly exhibited.

According to the paper sheet detection apparatus of the third aspect,
A plurality of displaceable rotating rollers are arranged in the upper area of the detection roller that comes into contact with the reference roller placed at a fixed position, and the plurality of rotating rollers are constrained to the detection roller side by the spring body and forcedly contact each other. Since the pressing force is applied to the reference roller via the detection roller, unnecessary vibration of the displacement transmission mechanism is suppressed by the action of the spring body and the plurality of rotating rollers, and It is possible to accurately detect the thickness of paper sheets while suppressing the bulge of leaves,
In addition, the rigidity of the displacement transmission mechanism is small, and the configuration can be simplified and the weight can be reduced.

According to the paper sheet detection apparatus of the fourth aspect,
An elastic roller is arranged at a fixed position above the detection roller that comes into contact with the reference roller arranged at a fixed position, and an elastic body provided on the outer circumference of the elastic roller is brought into contact with the detection roller to press the reference roller. Since I tried to give
To suppress unnecessary vibration of the displacement transmission mechanism section by utilizing the elastic force of the elastic body provided on the outer periphery of the elastic roller, and to accurately detect the thickness of the paper sheet while suppressing the bulge of the paper sheet. In addition, the rigidity of the displacement transmitting mechanism is small, and the structure can be simplified and the weight can be reduced. Further, dust and the like attached to the detection roller can be removed by the elastic roller.

[0018]

EXAMPLES Examples of the present invention will be described below.

FIG. 1 shows a depositing / dispensing unit 2 of an automatic depositing / dispensing machine incorporating a thickness detecting sensor 1 as a paper sheet detecting device of this embodiment.

The deposit / withdrawal unit 2 comprises an upper unit 3 and a lower unit 4.

An inspection unit 5 is provided in the central portion of the upper unit 2 in the vertical direction on the front side, and the thickness detection sensor 1 is incorporated in the inspection unit 5.

Further, on the upper part of the inspection section 5, there are provided a withdrawal temporary collection section 6, a received temporary collection section 7, a bill storage section 8 and the like.

Further, in the upper unit 2, a loading section 9, a controller 10, a gate 11, a belt conveying system and the like are provided.

On the other hand, in the lower unit 51, for example, a first safe 13 as a 10,000 yen storage, a second safe 14 as a 1,000 yen storage, a power supply unit 15, a damaged ticket storage 16, a reject ticket storage 17 , A collecting unit 18, a gate 19, a belt conveying system and the like are provided.

As shown in FIGS. 2 and 3, the thickness detection sensor 1 has a reference roller 21 facing the bill transport path of the inspection section 5 and a detection roller 22 in contact with the reference roller 21. U-shaped main body 2 to be housed in a portion
3 and an upper portion of the detection roller 22 is arranged so that the support shaft 24 is engaged with a long hole 25 provided on the wall surface of the main body 23 so as to be vertically displaceable with respect to the detection roller 22. The pressing roller 26 and the detection roller 22 are supported, and the displacement transmission mechanism unit 27 that transmits the displacement of the detection roller 22 due to the thickness of the paper money P, and the thickness of the paper money P is detected. And a thickness detector 28.

The displacement transmission mechanism section 27 includes the detection roller 2
A detection lever 29 that rotatably supports 2 at its protruding end, and a rotary shaft 3 that is fixed to the rear end of this detection lever 29 and is rotatably attached to the wall surface of the main body 23.
It has 0 and.

The thickness detecting section 28 includes a magnet 31 attached to the rotary shaft 30 and the magnet 3 on the wall surface of the main body 23.
1 and an MR sensor 32 arranged to face each other.

According to the thickness detecting sensor 1, the pressing roller 26 is supported so as to be vertically displaceable with respect to the detecting roller 22 and comes into contact with the detecting roller 22 by its own weight so that the pressing roller 26 can move against the detecting roller 22. Since the pressing force is applied to the reference roller 21, unnecessary vibration of the detection lever 29 of the displacement transmission mechanism 27 is suppressed by the action of the pressing roller 26, and the swelling of the banknote P is suppressed and the banknote P is accurately controlled. It is possible to detect the thickness of P. Further, the rigidity of the detection lever 29 is also small, and the configuration of the corner thickness detection sensor 1 itself can be simplified and reduced in weight.

Next, another example of the thickness detecting sensor 1 will be described with reference to FIG.

The thickness detecting sensor 1A shown in FIG. 4 has a belt transmitting mechanism 3 for transmitting the rotational force of the pressing roller 22 to the reference roller 21 in addition to the structure of the thickness detecting sensor 1.
The feature is that 3 is provided.

As shown in FIG. 4, the belt transmission mechanism portion 33 includes a first pulley 34 at the end of the support shaft 24 protruding laterally from the main body 23, and a shaft 21 of the reference roller 21.
The second pulleys 35 are attached to the ends of the first pulley 34 and the belt 36 is adjusted between the first pulley 34 and the second pulley 35. Further, the other end of the support shaft 24 of the pressing roller 22 is rotationally driven by the motor 37.

In this case, it is preferable that the belt 36 be slightly loosened in consideration of the displacement of the detection roller 22 when two banknotes P are inserted between the reference roller 21 and the detection roller 22. is there.

According to this detection sensor 1A, the same action and effect as those of the detection sensor 1 can be exhibited, and since the reference roller 21 is also driven to rotate, friction with the detection roller 22 can be reduced. The action is smoothed,
More effective.

Next, still another example of the thickness detecting sensor 1 will be described with reference to FIG.

The thickness detecting sensor 1B shown in FIG. 5 includes two rotating rollers 39 and 40, which are arranged in the upper region of the detecting roller 22 and are horizontally displaceable, and the rotating rollers 3 respectively.
A spring body 41 is provided for restraining 9, 40 on the detection roller 22 side and forcibly contacting each other, and applying a pressing force to the reference roller 21 via the detection roller 22. The spring body 41 is stretched between the shaft portions of the rotating rollers 39 and 40, and the rotating rollers 39 and 40 are pulled so as to approach in the horizontal direction, so that the outer peripheral portions of the rotating rollers 39 and 40 are individually detected. The roller 22 is brought into contact with the roller 22, so that a pressing force is applied to the reference roller 21 via the detection roller 22.

According to the thickness detecting sensor 1B, the action of the spring body 41 and the two rotating rollers 39, 40 suppresses unnecessary vibration of the detecting lever 29, and the bill P
The thickness of the paper sheet can be accurately detected while suppressing the bulge of the sheet, and the rigidity of the detection lever 29 is small, and the corner structure can be simplified and the weight can be reduced.

Instead of the thickness detection sensor 1B shown in FIG.
The thickness detection sensor 1C shown in FIG. 6 may be used. The thickness detecting sensor 1C includes two rotating rollers 39, 40 in the upper area of the detecting roller 22.
Displaceable in the direction along the center of the two spring bodies 4
1a and 41b are used to pull the two rotary rollers 39 and 40 toward the center of the detection roller 22, and the outer peripheral portions of these rotary rollers 39 and 40 are individually detected by the detection roller 22.
And the pressing force is applied to the reference roller 21 via the detection roller 22. With such a thickness detection sensor 1C as well, it is possible to exhibit the same operational effects as in the case of the thickness detection sensor 1B.

Next, another embodiment of the present invention will be described with reference to FIG.

The thickness detection sensor 1D shown in the figure has a reference roller 21 arranged at a fixed position, a detection roller 22 which is in contact with the reference roller 21 and is similar to the above-mentioned detection roller 22, and an upper portion of the detection roller 22. An elastic body (rubber) 46, which is arranged at a fixed position and is provided on the outer periphery, is brought into contact with the detection roller 22 and elastic force of the elastic body 46 applies a pressing force to the reference roller 21 to the detection roller 22. Roller 45
It has and.

According to the thickness detecting sensor 1D, the elasticity of the elastic body 46 provided on the outer periphery of the elastic roller 45, that is, FIG.
Unnecessary vibration of the detection lever 29 is suppressed by utilizing the elastic force due to the maximum deflection t of the elastic body 46 shown in FIG. 1, and the thickness of the banknote P can be accurately detected while suppressing the bulging of the banknote P. The rigidity of the lever 29 is also small, so that the configuration can be simplified and the weight can be reduced. Further, since the elastic body 46 makes contact with the detection roller 22 so that it is difficult to contact with the detection roller 22, the detection roller 22 can also serve as dust removal.

The present invention can be modified in various ways within the scope of the invention in addition to the above-mentioned embodiment.

[0042]

According to the present invention described in detail above, the following effects can be obtained.

According to the first aspect of the present invention, unnecessary vibration of the displacement transmitting mechanism can be suppressed to suppress the bulge of the paper sheet, and the thickness of the paper sheet can be accurately detected, and the structure is simplified. It is possible to provide a paper sheet detection device that is also lightweight.

According to the second aspect of the present invention, it is possible to provide a paper sheet detecting device which can more smoothly exhibit the effects of the first aspect of the invention.

According to the third aspect of the present invention, the action of the spring body and the plurality of rotating rollers suppresses unnecessary vibration of the displacement transmitting mechanism portion, and also suppresses the bulge of the paper sheet and accurately causes the paper sheet to swell. It is possible to provide a paper sheet detection device capable of detecting the thickness of a leaf and having a small rigidity of the displacement transmission mechanism portion, which can simplify the configuration and reduce the weight.

According to the fourth aspect of the present invention, the elastic force of the elastic body provided on the outer periphery of the elastic roller is used to suppress unnecessary vibration of the displacement transmitting mechanism portion, and the bulge of the paper sheet is suppressed. Provided is a paper sheet detection device capable of accurately detecting the thickness of a paper sheet while further reducing the rigidity of the displacement transmission mechanism portion, simplifying the construction, reducing the weight, and removing dust. can do.

[Brief description of drawings]

FIG. 1 is a schematic sectional view of a banknote deposit / withdrawal unit including an apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view showing an apparatus according to an embodiment of the present invention.

FIG. 3 is a side view showing an apparatus according to an embodiment of the present invention.

FIG. 4 is a perspective view showing another example of the apparatus according to the embodiment of the present invention.

FIG. 5 is a side view showing still another example of the apparatus according to the embodiment of the present invention.

FIG. 6 is a side view showing still another example of the apparatus according to the embodiment of the present invention.

FIG. 7 is a side view showing an apparatus according to another embodiment of the present invention.

FIG. 8 is a partially enlarged view of the apparatus according to another embodiment of the present invention.

FIG. 9 is a side view of an example of a conventional device.

FIG. 10 is a side view of another example of the conventional device.

[Explanation of symbols]

 1 Thickness Detection Sensor 21 Reference Roller 22 Detection Roller 23 Main Body 26 Pressing Roller 27 Displacement Transmission Mechanism Section 28 Thickness Detection Section P Banknote

Claims (4)

[Claims] 1. A paper sheet is passed between a reference roller arranged at a fixed position and a detection roller in contact with the reference roller, and the displacement of the detection roller due to the thickness of the paper sheet is supported by the detection roller. In a paper sheet detection device that detects the thickness of the paper sheet by transmitting it to a thickness detection section via a displacement transmission mechanism section, the paper sheet detection apparatus is disposed above the detection roller so as to be displaceable in the pressing direction and by the weight thereof. A paper sheet detection device comprising a pressing roller that comes into contact with the detection roller and applies a pressing force to the reference roller to the detection roller. 2. A paper sheet is passed between a reference roller arranged at a fixed position and a detection roller in contact with the reference roller, and the displacement of the detection roller due to the thickness of the paper sheet is supported by the detection roller. In a paper sheet detection device that detects the thickness of the paper sheet by transmitting it to a thickness detection section via a displacement transmission mechanism section, the paper sheet detection apparatus is disposed above the detection roller so as to be displaceable in the pressing direction and by the weight thereof. A pressing roller that comes into contact with the detection roller and is rotationally driven by a drive source to apply a pressing force to the reference roller to the detection roller, and a belt transmission mechanism section that transmits the rotational force of the pressing roller to the reference roller. A paper sheet detection device characterized by being provided with. 3. A paper sheet is passed between a reference roller arranged at a fixed position and a detection roller in contact with the reference roller, and the displacement of the detection roller due to the thickness of the paper sheet is supported by the detection roller. In a paper sheet detection device for detecting the thickness of the paper sheet by transmitting it to a thickness detection section via a displacement transmission mechanism section, a plurality of displaceable rotating rollers arranged in an upper region of the detection roller. And a spring body for constraining a plurality of rotating rollers to the detection roller side and forcibly making contact with each other, and applying a pressing force to the reference roller via the detection rollers. Detection device. 4. A paper sheet is passed between a reference roller arranged at a fixed position and a detection roller in contact with the reference roller, and the displacement of the detection roller due to the thickness of the paper sheet is supported by the detection roller. In a paper sheet detection device that detects the thickness of the paper sheet by transmitting it to a thickness detection section via a displacement transmission mechanism section, an elastic member provided at a fixed position above the detection roller and provided on the outer circumference. An apparatus for detecting a paper sheet, comprising: an elastic roller for bringing a body into contact with the detection roller and applying a pressing force to the reference roller to the detection roller by elastic force of an elastic body.