JPS6210274Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a paper sheet take-out device that takes out paper sheets, such as banknotes, accumulated in a paper sheet supply chamber one by one.

Generally, this type of device uses frictional force to take out paper sheets, such as banknotes, accumulated in a paper sheet supply chamber one by one. As the simplest and most economical method, a method that uses a friction wheel to take out paper sheets one by one has become popular. An example of this is shown in Figure 1, where a is the guide b.
A sheet supply chamber is formed from a holding portion c and a holding portion c, and sheets d, . . . are accumulated in this sheet supply chamber a.
Then, the friction wheel e is rotated by a drive mechanism (not shown), and the friction wheel e and the sheet d provided at the lowest part of the sheet supply chamber a are brought into contact with each other. Due to the frictional force, the sheets d are taken out one by one from the sheet supply chamber a starting from the bottom, and the sheets d are carried out to the outside by the sheet transport mechanism f.

However, in this structure, the frictional force between the friction wheel e and the paper sheets d takes out the paper sheets d one by one from the lowest part of the paper sheet supply chamber a, so even the paper sheets d that are supposed to be taken out later are taken out at the same time. Furthermore, the sheets d... in the sheet supply chamber a continuously slip, and a large number of sheets d... are taken into the sheet outlet g of the sheet supply chamber a, and the sheet d cannot be taken out. This may cause problems such as the product disappearing.

Therefore, in order to eliminate such drawbacks, the second
Various structures as shown in FIGS. 3, 3, and 4 have been developed for practical use. First, referring to FIG. 2, h in the figure is a sheet supply chamber formed by a guide i, a holding part j, and a guide plate k, and sheets l are accumulated in this sheet supply chamber h. . Further, a leaf spring n is provided on the guide plate k of the sheet supply chamber h to bias the outer circumferential surface of the friction wheel m. When the friction wheel m rotates and the sheet l held at the forefront in the sheet supply chamber h is taken out by friction, the tip of the second sheet l is held down by the elastic force of the leaf spring n. It is designed to prevent the second sheet l from entering and separate the sheets l to be taken out one by one by the friction wheel m.

Moreover, in FIG. 3, a rubber plate o having an elastic force is provided in place of the leaf spring n shown in FIG. 2 above, and this rubber plate o is brought into contact with the outer peripheral surface of the friction wheel p. Similarly, when the friction wheel p rotates and the paper r held at the forefront in the paper supply chamber q is taken out by friction, the tip of the second paper r comes into contact with the rubber plate o, The second sheet r is prevented from entering and the sheets r taken out by the friction wheel p are separated one by one.

In addition, Fig. 4 shows a configuration in which a reversing roller t is provided opposite the friction wheel s, and there is a small gap that allows one sheet of paper U to fit between the opposing friction wheel s and the reversing roller t. There is. Then, due to the rotation of the friction wheel s, the paper sheet u held at the forefront in the paper sheet supply chamber v
is taken out by friction, the tip of the second sheet u is sent in the opposite direction to the take-out direction by the rotation of the reversing roller t to prevent the second sheet u from entering. , the paper sheets u taken out by the friction wheel s are separated one by one.

However, in the structure shown in FIG. 2, due to reasons such as the tips of the sheets l... accumulated in the sheet supply chamber h not being neatly aligned, a plurality of sheets l... are transferred to the friction wheel m... In this case, the paper leaves l... are not separated one by one, but a plurality of paper leaves l... are taken out at once. Moreover,
Since the sheets of paper such as banknotes are separated one by one by the elastic force of the leaf spring n, a problem arises in that it is extremely difficult to adjust the attachment of the leaf spring n.

Further, in the structure shown in FIG. 3, the rubber plate o is worn out by the rotation of the friction wheel p, and the shape of the contact portion with the friction wheel p is deformed, resulting in a change in the pressing force of the rubber plate o. As a result, the state in which the sheets r are taken out is not constant, causing a problem that the function of separating the sheets r one by one gradually deteriorates. Moreover, if multiple sheets of paper r... enter between the friction wheel p and the rubber plate o at one time, a jam occurs between the friction wheel p and the rubber plate o, making it difficult to take out the paper sheets r... There is also the problem that it becomes impossible.

Moreover, in the structure shown in FIG. 4, even though the friction wheel s is not rotating, the paper sheet u is moved between the friction wheel s and the reversing roller t.
This may cause problems such as the tip of the paper sheet u being taken out by the reversing roller t breaking. Furthermore, a problem arises in that the paper leaf u... taken out by the friction wheel s cannot be taken out because the leading edge of the paper leaf u... is bent or the like. Moreover, in consideration of such problems, it is extremely difficult to adjust and manage the gap between the friction wheel s and the reversing roller t, since paper sheets U of various thicknesses such as banknotes are taken out one by one.

In this way, in any paper sheet take-out device of any structure, when a plurality of sheets enter the sheet separation mechanism formed by a friction wheel, a leaf spring, a rubber plate, and a reversing roller at one time, the sheets are separated into one sheet. It is not possible to separate the sheets one by one, resulting in problems such as having to take out multiple sheets at once, or the sheets becoming jammed, making it impossible to take them out. Furthermore, when paper sheets are taken out one by one due to the frictional force of such a friction wheel, it is extremely difficult to adjust the installation and maintain and manage the setting values of the separation mechanism.

This invention was developed based on the above circumstances, and its purpose is to be able to reliably separate and take out paper sheets one by one from the paper supply unit, and to maintain and manage the separation performance. It is an object of the present invention to provide a paper sheet retrieval device that can be easily used.

An embodiment of this invention will be described below with reference to FIGS. 5 to 7. In the figure, reference numeral 1 denotes a sheet guide plate of a sheet take-out device, and a sheet supply chamber 2 serving as a sheet supply section is formed on the upper surface of this sheet guide plate 1.
This paper sheet supply chamber 2 includes a paper sheet guide plate 1 and a front guide 3.
A plurality of paper sheets such as banknotes, for example, paper sheets 4, are accumulated in this paper sheet supply chamber 2. The accumulated paper sheets 4 are then urged in the direction of the arrow by the backup plate 5.
It is held within the sheet supply chamber 2. Further, a paper sheet outlet 6 is formed in the front surface of the paper sheet supply chamber 2, and a separation mechanism 7 is disposed in the paper sheet outlet 6. The separation mechanism 7 is composed of a friction wheel 8, which is a rotating body, and a separation plate 9. The friction wheel 8 is formed, for example, from a cylindrical rubber roller with a knurled surface, and a part of its circumferential surface faces inside the paper sheet supply chamber 2 and the paper sheet outlet 6, and forms a part of the sheet supply chamber. It is in rolling contact with the sheet of paper 4 held at the forefront of the sheet 2. Further, the separation plate 9 is designed as shown in FIGS. 8 to 10. That is, in the figure, reference numeral 10 denotes a rectangular base made of a metal member, and a sponge-like elastic layer such as a mold plane 11 is pasted onto the base 10. And furthermore, this mold plane 11
A plurality of friction retainers made of a high-friction material, such as fiber-filled polyurethane belts 12, are attached on top of the friction wheel 8 at predetermined intervals along the width direction. By pasting them at predetermined intervals, the areas that are not pasted are covered with polyurethane belts 12.
and the friction wheel 8. moreover,
On the polyurethane belt 12, a guide member such as a drafting film 13 having a smooth film-like surface is attached along the width direction of the friction wheel 8 to the side thereof. Then, the separation plate 9 formed in this way is attached to the polyurethane belt 12.
is located on the outer peripheral surface of the friction wheel 8, and its drafting film 13 is located facing the paper sheet outlet 6, and friction is caused by the elastic force of the compression springs 14 provided on the lower surface of the separation plate 9 and the mold plane 11. car 8
is energized by Due to this urging, the polyurethane belt 12 and the mold plane 11 that come into contact with the outer peripheral surface of the friction wheel 8 are elastically deformed and curved. Due to this curvature, a curved surface portion 15 is formed with a distinctive curve near both sides of the contact surface between the friction wheel 8 and the polyurethane belt 12. One end of the drafting film 13 is located at a distance y from one side of the contact surface. That is, there is a predetermined distance y between one end of the contact surface between the friction wheel 8 and the polyurethane belt 12 and one end of the drafting film 13. Further, reference numeral 16 in the figure represents a paper sheet conveyance mechanism, which is formed from a first conveyance section 17 and a second conveyance section 18. The first conveying section 17 includes a pair of sheet feeding rollers 19, 19.
and a belt 20 stretched around these sheet feeding rollers 19, 19. Further, the second conveying section 18 includes a pair of sheet feeding rollers 21 and a belt 22 stretched between these sheet feeding rollers 21 and 21.
It is formed from. These first and second conveyance sections 17 and 18 are in rolling contact with each other via belts 20 and 22, and the paper sheet 4 separated from the separation mechanism 7 is held between the belts 20 and 22 and then transferred to the outside. It is now being transported to

Next, the operation of the paper sheet retrieval device configured as described above will be explained. The paper sheets 4 accumulated in the paper sheet supply chamber 2 are constantly urged against the friction wheel 8 by the back-up plate 5, which has the paper sheet 4 at the forefront thereof. Then, due to the frictional force of the friction wheel 8 rotated by a drive mechanism (not shown), a plurality of sheets 4 including the frontmost sheet 4 reach the sheet outlet 6, and their tips end at the drafting film 13. guided by the smooth surface of the Among them, a plurality of paper sheets 4 on the front side are curved surface portions 1.
5, their tips come into contact with the curved surface part 15, and only the frontmost sheet 4 comes into surface contact with the friction wheel 8, and is separated from the other sheets 4 by the frictional force, and the friction wheel 8 and the polyurethane sheet 4 are separated from each other by the frictional force. The sheet is taken out to the sheet transport mechanism 16 through the contact surface with the belt 12. After that, the separated paper sheets 4 are transferred to the belt 20 of the paper transport mechanism 16,
22 and conveyed to the outside. Such a series of operations is performed continuously, and the sheets 4 in the sheet supply chamber 2 can be separated and taken out one by one.

Also, the plurality of paper sheets 4 that have reached the curved surface portion 15 are
If, for some reason, the polyurethane belt 12 enters between the friction wheel 8 and the separation plate 9 all at once, the separation plate 9 will not change the curved shape of the polyurethane belt 12, and the mold plane 11 will undergo elastic deformation and be pushed downward. At the same time, the compression springs 14 are compressed in response to this pushing down, and the separation plate 9 is pushed down. Then, the frontmost sheet 4 comes into surface contact with the friction wheel 8 and is taken out by the frictional force, while the other sheets 4 come into contact with the curved surface of the polyurethane belt 12. Due to this contact, the plurality of paper sheets 4 that have entered between the friction wheel 8 and the separation plate 9 are separated one by one from the frontmost side by the rotation of the friction wheel 8.
The paper sheet transport mechanism 16 is reached.

In this way, even if a plurality of paper sheets 4... enter between the friction wheel 8 and the separating plate 9 at once, the curved surface of the curved polyurethane belt 12 prevents the paper sheets 4... other than the frontmost portion from entering. Since the sheets 4 are separated one by one from the frontmost side by the rotational friction of the friction wheel 8, the sheets 4 are reliably separated one by one from the frontmost side in the sheet supply chamber 2. It can be separated and taken out.

In addition, the elastic force of the mold plane 11, which is the sponge-like elastic body, and the compression spring 1
If the spring constant of 4... is set to an appropriate value suitable for various types of paper sheets 4..., paper sheets 4... will be held in an extremely stable state.
separation is performed. Therefore, stable separation performance can be obtained at all times, and there is no need for maintenance and management associated with the separation performance, resulting in excellent economic efficiency.

In the above embodiment, a friction wheel is used as the rotating body, and the paper leaves in the paper sheet supply chamber are taken out by the frictional force of the friction wheel. Even if this is done, the same effect as in the above embodiment can be obtained. Furthermore, in the above embodiment, a compression spring was used to urge the separating plate toward the rotating body with its elastic force, but a tension spring was used instead of the compression spring to urge the separating plate against the rotating body with its elastic force. Even if this is done, the same effect as in the above embodiment can be obtained.

As described above, this invention is not limited to the above embodiments, and it goes without saying that various modifications can be made without changing the gist of this invention.

As explained above, according to this invention, the paper sheets accumulated in the paper sheet supply section are taken out from the frontmost side by the frictional force of the rotating body, and the paper sheets are guided by the guide member, and the paper sheets are guided inside the paper sheet supply chamber. The paper sheets at the forefront of the paper are taken out by the rotational friction of the rotating body, and the other sheets are brought into contact with the friction member to separate and take out the paper sheets one by one from the front side. To reliably separate and take out leaves one by one from a paper supply chamber. In addition, since the high-friction member is divided into a plurality of parts at predetermined intervals in the direction perpendicular to the paper sheet removal direction with respect to the rotating body, when paper sheets are introduced into the rotating body and the high-friction member, Even if wrinkles occur in paper sheets, the wrinkles can be released between the divided pieces of the high friction member, and the wrinkles are not pressed and bent. Therefore, paper sheets can be separated and taken out one by one in good condition without wrinkles.

In addition, since a plurality of friction retainers are pasted on the elastic layer at intervals, the space between them constitutes a space between the rotating body and the elastic layer, and air is kept in this space. The generation of flow produces a cooling effect. Furthermore, by bringing the friction holder into contact with the outer peripheral surface of the rotating body using the biasing member through the elastic layer, the friction holder can actively circumferentially contact the rotating body with a substantially uniform force due to the elastic force. , paper sheets can be reliably and smoothly separated and taken out one by one.

Furthermore, if the elastic force of the elastic layer that causes elastic deformation is set to a value suitable for various types of paper sheets, paper sheets can be reliably separated in an extremely stable state. As a result, stable separation performance can be obtained at all times, and there is no need for maintenance and management associated with the separation performance, resulting in excellent economic efficiency.

[Brief explanation of the drawing]

FIG. 1, FIG. 2, FIG. 3, and FIG. 4 are schematic configuration diagrams showing different conventional paper sheet retrieval devices, respectively;
FIG. 5 is a schematic configuration diagram showing an embodiment of this invention;
6 is a front view showing the separating mechanism, FIG. 7 is a side view thereof, FIG. 8 is a plan view showing the separating plate, FIG. 9 is a side view thereof, and FIG. 10 is a front view thereof. 2... Paper leaf supply section, 4... Paper leaf (paper sheets), 7
... Separation mechanism, 8 ... Friction wheel (rotating body), 9 ...
Separation plate, 11...Mold plane (elastic layer), 12...Polyurethane belt (friction retainer), 13...Drafting film (guide member).

Claims (1)

[Scope of utility model registration request] In a device that separates and takes out paper sheets one by one from a paper supply section in which a plurality of paper sheets are accumulated, the sheets roll into contact with the paper sheets at the forefront of the paper supply section and the paper is separated by the frictional force. A rotating body for taking out leaves, a plurality of frictional holding bodies that face the rotating body and separate paper sheets one by one by frictional force, and the plurality of frictional holding bodies are each pasted at intervals. A paper sheet retrieval device comprising: an elastic layer; and a biasing member that brings the friction holder into contact with the outer circumferential surface of the rotating body via the elastic layer.