JPH0150958B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a delinquent bill transport mechanism of a bill validating device built into an automatic teller machine, money changer, etc. used in financial institutions.

[Conventional technology]

Automatic deposit machines, currency exchange machines, etc. used by financial institutions such as banks must reliably identify the authenticity, denomination, number, etc. of banknotes inserted into the machine by customers. Therefore, these automatic teller machines, currency exchange machines, and the like have built-in bill validators for performing the above-mentioned validation.

Since this bill validating device is required to discriminate bills at a constant speed, it is common to carry out the bill validating while conveying the bills using a conveyance mechanism.

As a conventional banknote transport mechanism of this type of banknote validating device, there is one disclosed in, for example, Japanese Patent Application Laid-open No. 1983-67200.

This banknote conveyance mechanism has a conveyance means consisting of a pair of upper and lower conveyance belts or conveyance rollers arranged on both sides of a banknote discrimination sensor such as a magnetic head and an optical detector, which are the main components of the banknote discrimination device. By holding the non-discrimination part of the banknote, for example, both sides of the banknote, and driving the conveying means by a drive source such as a motor, the banknote is linearly conveyed and passes above (below) the banknote discrimination sensor. let me,
This allows the banknote discrimination sensor to perform banknote discrimination.

[Problem that the invention seeks to solve]

However, the bill conveyance mechanism of the conventional bill validating device described above has the following problems.

That is, in banknote discrimination, it is desirable to bring the banknote as close as possible to the banknote discrimination sensor in order to perform accurate discrimination, but in the above-mentioned banknote conveyance mechanism, only the both sides of the banknote are moved by a conveyance belt, conveyance rollers, etc. Since the structure is such that the banknotes are conveyed while being clamped by the conveyance means, when the banknotes are conveyed at high speed, vibrations caused by the movement or rotation of the conveyance means may be generated in the part of the bill that is not clamped, that is, the part that should be discriminated by the banknote discrimination sensor. As a result, the banknote comes into contact with the banknote discrimination sensor, and the static electricity and noise generated by the contact friction have an adverse effect on the banknote discrimination sensor, causing a problem such as a misidentification. It was hot.

The present invention has been made to solve such problems, and allows bills to be conveyed and passed through the banknote discrimination sensor position without causing vibration of the banknotes that would cause discrimination errors, etc., so that accurate discrimination can be performed. It is an object of the present invention to realize a banknote conveyance mechanism of a banknote discrimination device that can perform the following operations.

[Means for solving problems]

In order to achieve the above-mentioned object, the present invention comprises two rotatable drums having grooves formed on the outer periphery of both ends, which are juxtaposed in close proximity so that the grooves face each other, and a belt for conveying banknotes. The belts are wound around the grooves at opposite positions in the radial direction of both drums, and the belts wound around the opposing grooves are overlapped from one drum to the other drum, and the belts are further wound between the two drums. A banknote discrimination sensor is disposed along the outer peripheral surface of the side around which the belt is wound.

[Effect]

The present invention having the above-mentioned configuration involves sandwiching both sides of a banknote to be discriminated between belts wound around two drums, and driving the drums and belts to bring the banknote into close contact with the outer periphery of the drums. It is conveyed from the outer periphery of one drum to the outer periphery of the other drum.

During this conveyance, the front and back sides of the banknotes are reversed when they are transferred from the outer periphery of one of the drums to the outer periphery of the other drum. It faces the banknote discrimination sensor, and both sides are discriminated.

Therefore, according to this method, the banknotes are conveyed with almost the entire part in close contact with the drum while undergoing discrimination, which prevents the banknotes from vibrating even when conveyed at high speeds, and ensures accuracy with no misidentification. This makes it possible to make a high degree of discrimination.

〔Example〕

The following explanation will be given with reference to the drawings. FIG. 1 is a side sectional view showing an embodiment of the banknote conveyance mechanism of the banknote validating device according to the present invention, FIG. 2 is a sectional view taken along the line -- in FIG. FIG. 5 is an enlarged view of the main part showing the close contact between the drum and the banknote in the embodiment, and FIG. 5 is an enlarged side view of the main part showing the front and back of the banknote being reversed.

In the figure, 1 and 2 are drums, and grooves 3, 4, 5, and 6 are formed on the outer periphery of both ends, respectively, and a frame 7,
8 and are rotatably arranged close to each other at or near the center. 9, 10 and 11, 12 are endless belts for conveying banknotes, the width and thickness of which are the same as the width and depth of the grooves 3, 4, 5, 6 of the drums 1, 2; The drums 1 and 2 are hung in an S-shape or an inverted S-shape when viewed from the side so that the drums 1 and 2 rotate in opposite directions, and the belts 9 and 11 facing each other are
10 and 12 are overlapping each other. Accordingly, the belt 9 fits into the groove 5 of the drum 2 and moves into contact with the belt 11 which fits into the groove 3 of the drum 1. Further, the belt 10 is also connected to the drum 2 in the same manner as above.
The belt 12 fits in the groove 6 of the drum 1 and moves in contact with the belt 12 that fits in the groove 4 of the drum 1.

Reference numerals 13 and 14 are idle pulleys arranged side by side at the entrance A of the banknote validating device, 15 is an idle pulley arranged at the exit B, and 16 is a drive pulley. It is juxtaposed with 15. 18,1
9 is an idle pulley, and 20 and 21 are tension pulleys, which apply a given tension to the belts 9 and 10, 11 and 12. Above pulley 13-2
1 moves and guides the belts 9, 10, 11, and 12 by wrapping them around each other.

Reference numeral 22 denotes banknotes, and 23, 24, and 25 denote banknote discrimination sensors, which are respectively attached to frames 7 and 8 via attachment beams 26 along the outer peripheral surface of drum 1, over which belts 9, 10, 11, and 12 are stretched. It is being
27, 28, and 29 are also sensors for bill discrimination, and are respectively attached to frames 7 and 8 via attachment beams 25 in the same manner as above along the outer peripheral surface of the drum 2 around which the belts 9, 10, 11, and 12 are wrapped. It is being 3
0 and 31 are conveyor belts, and conveyor pulleys 32,
33 to convey the banknotes 22 to be discriminated to the entrance A. Reference numerals 34 and 35 denote delivery belts, which are used to carry out the verified banknotes 22 from the exit B using delivery pulleys 36 and 37.

Next, to explain the operation of the above embodiment, the drive shaft 17 is rotated by a power source (not shown) to rotate the drive pulley 16, and the belts 9, 10 stretched around the drive pulley 16 are rotated by the rotation. The drum 1 moves and rotates, and as the belts 9 and 10 move, the belts 11 and 12 that are in contact with the belts 9 and 10, respectively, also rotate.
is rotated clockwise, and the drum 2 is also rotated counterclockwise.

Then, the idle pulleys 13,
Belts 9 and 11 and 10 abut each other by 14
and 12, respectively, and convey it toward the drum 1, and as shown in FIGS.
0, 11, 12, and move them in close contact with each other, and in this state, the banknote discrimination sensors 23, 2
4 and 25, one side of the banknote 22, for example, the front side, is identified.

The banknote 2, whose surface has been identified in this way, then reaches the vicinity of the drums 1 and 2, and together with the belts 9 to 12, the direction of movement is switched from the drums 1 to 2.
The banknotes 2 are transferred onto the outer peripheral surface of the drum 2.
2, the front and back sides are reversed as shown in FIG.

The banknotes 22 thus transferred onto the outer peripheral surface of the drum 2
The banknote is then conveyed while being held in close contact with the outer peripheral surface by the belts 9 and 10, 11 and 12, and the other one side, the back side, is discriminated by the banknote discrimination sensors 27, 28, and 29. After further discrimination, this banknote is 22 is conveyed to the exit B, and then sent out between the conveyance belts 34 and 35.

〔Effect of the invention〕

As explained above, in the present invention, two drums having grooves formed on the outer periphery of both ends are rotatably juxtaposed, and an endless belt is stretched over each groove so that the drums rotate in opposite directions. In particular, since both sides of the banknote are held between opposing belts and moved inverted on the outer peripheral surfaces of the two drums, the front and back sides of the banknote can be continuously distinguished. Furthermore, by making the depth of the groove the same as the thickness of the belt, almost the entire bill can be brought into close contact with the outer circumferential surfaces of both drums, so even if the bill is conveyed at high speed, vibrations will not occur. This eliminates the generation of static electricity due to contact with the banknote discrimination sensor, resulting in the effect that highly accurate discrimination can be performed.

[Brief explanation of drawings]

FIG. 1 is a side cross-sectional view showing an embodiment of the banknote conveyance mechanism of the banknote validating device according to the present invention, FIG. 2 is a cross-sectional view taken along the line -- in FIG. 1, and FIG. 4 is an enlarged view of the main part of FIG. 3, and FIG. 5 is an enlarged side view of the main part showing the front and back of the banknote being reversed. 1, 2...Drum, 3, 4, 5, 6...Groove, 9, 1
0, 11, 12...Belt, 13, 14, 15, 1
8, 19...Idle pulley, 16...Drive pulley,
20, 21...Tension pulley, 22...Banknote, 2
3, 24, 25, 27, 28, 29...Sensor for banknote discrimination.

Claims (1)

[Scope of Claims] 1. Two rotatable drums having grooves formed on the outer periphery of both ends are juxtaposed close to each other so that the grooves are opposite each other, and a belt for conveying banknotes is connected between both drums. The belts are wound around the grooves at opposite positions in the radial direction, and the belts wound around the opposing grooves are overlapped from one drum to the other, so that both sides of the banknote to be distinguished are are held by the belt, and the held banknotes are conveyed from the outer periphery of one drum to the outer periphery of the other drum in close contact with each drum, and the banknotes are conveyed from the one drum to the other drum. When the banknotes are transferred to the drums, the front and back sides of the banknotes are reversed, and the front and back sides of the banknotes are discriminated by a banknote discrimination sensor arranged along the outer peripheral surface of each drum. Banknote transport mechanism of banknote validator.