JPH0236033B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a paper sheet recognition device, for example, a bill recognition device used in a bill automatic deposit/withdrawal device used in banks and the like.

(Prior Art) Conventionally, in this field, banknote recognition devices for recognizing banknotes recognize banknotes by running the banknotes along a banknote detection unit, but due to the characteristics of the detection unit and the recognition rate. In order to improve the performance, the bill running surface and the detection section were in close contact with each other, and in order to prevent the bill from wobbling, the bill running surface and the detection section were fixed by keeping a narrow gap of about 2 to 3 bill thicknesses between the bill running surface and the detection section. .

FIG. 4 is a configuration diagram showing an example of a conventional banknote recognition device. The bill recognition device 1 performs authentication, validity, damage, front and back discrimination, etc. of the inserted bill from the time the bill is inserted in the direction of the arrow X until it comes out. The inserted banknotes are conveyed via conveyor belt 5, conveyor belt 2, and conveyor belt 3. 4 is a drive roller for driving the conveyor belt 5, the conveyor belt 2, and the conveyor belt 3. A banknote detection unit 7 is installed on a fixed base 17 facing the drum 6 that constitutes a running surface.

FIG. 5 is a plan view of the drum 6 and the banknote detection section 7. The outer peripheral surface of the drum 6, which is a banknote running surface, and the banknote detection section 7 serve as a running path for banknotes 15 for two to three banknotes. It is fixedly installed on a fixed base 17 while maintaining a gap.

(Problems to be Solved by the Invention) However, in such a narrow running path, if several bills overlap or if a bill with a bent tip runs, the running path is narrow, so the bill detection unit 7
This has the disadvantage that banknotes often get jammed in the banknotes, causing failures in banknote recognition devices.

(Means for Solving the Problems) In this type of device, the present invention provides a fulcrum in the banknote detection unit so as to have a degree of rotational freedom, and also provides a roller opposite to a belt for running and conveying banknotes. Moreover, the belt rollers are arranged so that the gap is smaller than the gap between the bill detection section and the bill running surface.

It is an object of the present invention to provide an apparatus which solves the conventional problems and does not cause bill jams even on narrow bill running paths.

(Function) According to the present invention, since the device is configured as described above, when several bills are running, the belt is pushed up according to the thickness of the bills at that time, and at the same time, the rollers provided opposite to the belt are pushed up according to the thickness of the bills at that time. At the same time, it pushes up the banknote detection unit and widens the travel path.

(Example) An example of the present invention will be described below. FIG. 1 is a side view showing the configuration of a banknote recognition device to which the present invention is applied. Banknote recognition device 1 moves in arrow direction Xa
More banknotes are inserted and then removed from the device in the direction of the arrow
Before the banknotes are sent to the XB, they are checked to determine whether they are genuine or not, whether they are good or bad, and whether they are front or back. Banknotes inserted from the arrow direction Xa are conveyed via conveyor belts 5, 2, and 3. 4 is a conveyor belt 5;
This is a drive roller for driving the conveyor belt 2 and the conveyor belt 3. A banknote detection unit 7 is fixed to a detection unit base 8 facing the drum 6 that constitutes a banknote running surface. The banknote recognition device 1 includes a banknote detection unit 7 and a drum 6 in order to ensure reliability of recognition.
It is equipped in two places and performs double recognition.

FIG. 2 is a detailed side view of the banknote detection section 7 and drum 6 shown in FIG. 1, and FIG. 3 is a detailed plan view of the banknote detection section 7 and drum 6.

In FIGS. 1 to 3, the detection unit base 8 has fulcrums 9a and 9b on both sides, and is rotatable about the fulcrums 9a and 9b. The detection unit base 8 is abutted against a stopper 10 by a spring 14, and is connected to the outer peripheral surface of the drum 6, which is the bill running surface, and the bill 2.
They are installed to maintain a gap of about 3 sheets. The stopper 10 is fixed to frames 16a and 16b. A roller 12a and a roller 12b are arranged opposite the conveyor belt 2a and the conveyor belt 3a, and the conveyor belt 2c and the conveyor belt 3c, respectively, and the conveyor belt 2
When the banknote 15 is sandwiched between the transport belts 3 and transported, the distance between the transport belt 3a and the roller 12a and between the transport belt 3c and the roller 12b is larger than the gap B between the banknote detection unit 7 and the surface of the banknote 15. The rollers 12a and 12b are installed in the banknote detection section 7 so that the gap A becomes small. Reference numeral 11 denotes a stopper for preventing the detection unit base 8 from rotating more than necessary.

Next, the operation of the device will be explained. First, the first
A single banknote inserted into the banknote recognition device 1 shown in the figure from the direction of the arrow Xa is conveyed between the conveyor belts 5, and then transferred to the conveyor belts 2 and 3, passing through the outer peripheral surface of the drum 6. and arrow direction
Transported to Xb. At this time, as shown in FIG. 3, there is a gap B between the conveyance belt 3a and the roller 12a, and between the conveyance belt 3c and the roller 12b, so the banknote detection section 7 is not affected by the running of the banknote 15. Moreover, the running of the banknotes 15 is also extremely smooth.
When the banknotes 15 pass through the banknote detection unit 7, the authenticity of the banknotes, the integrity and damage, the front and back sides of the banknotes, etc. are determined. Next, when several banknotes are piled up and conveyed into the device from the arrow direction Xa, the banknotes are sandwiched between the conveyor belts 2 and 3 via the conveyor belt 5 and reach the banknote detection section 7. transported. Hereinafter, referring to FIGS. 2 and 3, when several banknotes are piled up as described above, the conveyor belt 3a and the conveyor belt 3c are pushed up by the thickness of the banknotes, and the conveyor belt 3a moves to the roller 12a. The conveyor belt 13c is the roller 12b
are in contact with each other. Therefore, the rotation of the conveyor belts 3a, 3c is transmitted to the rollers 12a, 2b, and rotates around the fulcrums 13a, 13b in the arrow direction (second direction).
Push up the banknote detection unit 7 in the direction of the arrow Z while rotating it in the figure). Therefore, no matter what kind of banknotes are conveyed, the gap between the banknote detection unit 7 and the banknotes is maintained. After the banknote has passed, the banknote detection unit 7 returns to its original position due to the restoring force of the spring 14.

(Effects of the Invention) As described above, the present invention has the bill detection section 7
A roller 12 is placed at a position facing the conveyor belt 3a.
a, a roller 12 at a position facing the conveyor belt 3c;
Since the rollers 12a and 12b are arranged so that the gap A between the conveyor belt 3a and the roller 12a and between the conveyor belt 3c and the roller 12b is smaller than the gap B between the banknote detection unit 7 and the surface of the banknote 15, The banknote detection unit 7 does not come into contact with banknotes even if several banknotes are piled up or folded and transported, and no load is applied to each other. Furthermore, due to the distance B between the rollers 12a, 12b and the conveyor belts 3a, 3c, when several bills overlap, the detection unit 7
Since the detection unit is configured to maintain a stationary state when there is only one banknote by rotating the banknote, there is an advantage that stable banknote recognition is possible. In addition, the rollers 12a and 12b that push up the banknote detection unit 7 include a conveyor belt 3a running for conveyance,
Since the rollers do not come into direct contact with the banknotes due to the contact with the conveyor belt 3c, the banknotes run extremely smoothly because they are not affected by the inertial load of the rollers when the banknotes rush into the rollers, and the banknotes are not affected by the negative effects of running due to the rollers. The banknote detection unit 7 escapes without being affected at all. Therefore, there is an advantage that bill jamming does not occur in the bill detection section. Furthermore, the present invention detects the thickness of the banknote at the part where the banknote is pressed by the belt, so that wrinkles, folds, etc. of the banknote are minimized by the belt press. It is possible to protect the banknote detection unit from vibrations and the like when the banknotes are in transit.

It goes without saying that the present invention is not limited to the banknote recognition device described above, but can also be applied to devices that transport paper sheets along narrow travel paths.

[Brief explanation of drawings]

FIG. 1 is a side configuration diagram of a banknote recognition device which is an embodiment of the present invention, FIG. 2 is a detailed side view of the banknote detection section, FIG. 3 is a detailed plan view of the banknote detection section, and FIG. 4 is a detailed side view of the banknote detection section. FIG. 5 is a side configuration diagram of a conventional banknote recognition device, and FIG. 5 is a detailed plan view of a conventional banknote detection section. 1 is a banknote recognition device, 2, 2a, 2b, 2c,
3, 3a, 3b, 3c, 5 are conveyor belts, 4 is a drive roller, 6 is a drum, 7 is a banknote detection unit, 8
is the detection unit base, 10 is the stopper, 12, 12
a and 12b are rollers, 14 is a spring, and 15 is a banknote.

Claims (1)

[Scope of Claims] 1. A paper sheet recognition device that transports paper sheets while sandwiching them between two transport belts, and has a detection unit that automatically recognizes the paper sheets that are transported by the transport belts. In the apparatus, rollers are attached to both ends of the detection section and provided opposite to the conveyor belt, and rollers that support the detection section and rotate the detection section in a direction toward and away from a paper sheet running surface. a detecting unit base that is movable; a biasing unit that is attached to the detecting unit base and biases the detecting unit toward a paper sheet running surface; and a predetermined interval between the conveying belt and the roller. and regulating means for regulating the rotation of the detection base by the urging means, and when the thickness of the sheet exceeds the predetermined interval, the roller and the conveyor belt come into direct contact, A paper sheet recognition device characterized in that the detection section rotates in a direction away from a paper sheet running surface depending on the thickness of the paper sheet.