JPH11130289A - Paper sheet carrying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the attitude change of a paper sheet by friction and the wear of a belt and the paper sheet, and surely shift superposed paper sheets to each other by releasing the nipping force between belts acting on the paper sheet by pushing up the belts, and imparting a carrying-directional moving force to the paper sheet laid in the state where the nipping force is released. SOLUTION: Carrying belts 6, 12 are set so as to be alternated without being mutually opposed. Carried superposed paper sheets 100a are stopped in a prescribed position. Rubber rollers 15 are fixed at the equal interval of pulleys 11, and a driving shaft 14 rotatably connected to a driving source 13 is rotated. The paper sheet 10a nipped by the carrying belts 12 and the carrying belts 12 can be simultaneously pushed up in arrowed directions of 90a, 90b and 90c to impart a carrying force in arrowed directions 91a, 91b, and 91c while releasing the nipping between the belts. The paper sheet 100a is carried by imparting the carrying force in the arrowed directions 91a, 91b, and 91c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION Among paper transporting apparatuses for pinching and transporting papers, particularly in an automatic cash transaction apparatus,
As an auxiliary means to reliably separate overlapping paper sheets,
The present invention relates to a paper sheet transport device provided with a paper sheet shifting mechanism for increasing the displacement of overlapping sheets.

[0002]

2. Description of the Related Art As means for shifting overlapping paper sheets, as in the apparatus disclosed in Japanese Patent Application Laid-Open No. 1-167138, the paper sheets are further sandwiched by a pair of rollers while the overlapping paper sheets are sandwiched by a belt. There is a method of shifting the rotation of the roller pair by rotating one side forward and the other side reversely. Further, as in the apparatus disclosed in Japanese Patent Application Laid-Open No. 5-116806, one of the sheets is conveyed while vacuum-sucking and the other sheet is conveyed in the opposite direction while holding the overlapping sheets between the belts. There is something.

[0003]

In the above prior art,
In both cases, the paper sheets are shifted while the overlapping paper sheets are held between the belts, so that the resistance force when shifting the paper sheets is large, and the resistance acting when the paper sheets are shifted. There is a risk that the posture of the paper sheet will change due to the force. In addition, since the sheet is still held between the belts, friction between the sheet and the belt may cause not only the sheet but also the belt to be worn.

The present invention has been made in view of the above problems, and has as its object to reduce the resistance force between a belt and a paper sheet generated when the overlapping paper sheets are displaced, to change the posture due to the displacement, and to change the paper sheets. It is an object of the present invention to provide a paper sheet transport device provided with a paper sheet shifting mechanism for reducing wear of paper and a belt.

[0005]

In order to achieve the above object, a paper sheet apparatus according to the present invention comprises a conveying path for pinching paper sheets by alternately arranging opposed belts one by one.
A pinching force releasing unit that releases the pinching force between the belts acting on the sheets by pushing up the belt, and a conveying force applying unit that applies a moving force in the conveying direction to the sheet in a state where the pinching force is released. It is provided.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a sheet conveying apparatus according to the present invention. FIG. 1 is a perspective view showing an example of the form of the paper sheet transporting apparatus of the present invention.

[0007] The pulley 3 and the pulley 5
A plurality of pulleys are fixed to the driven shaft 4 at predetermined intervals, and a conveyor belt 6 is hung on each pulley. Pulley 1
A plurality of pulleys 1 and a plurality of pulleys 9 are fixed to a driven shaft 10 and a driving shaft 8 at predetermined intervals, respectively, and a conveyor belt 12 is hung on each pulley. The power source 1 rotates the drive shaft 2, and the power source 7 rotates the drive shaft 8.

As shown in the example of FIG. 1, when the number of one pulley (for example, pulley 11) is N, the number of other pulleys (for example, pulley 3) is N + 1. To be configured. However, if N = 1, the force for pinching the paper sheets becomes insufficient, and there is a possibility that the paper sheets may fall off the conveyor belt. Therefore, it is preferable that N ≧ 2.

The intervals between the fixed pulleys are set so that the conveyor belts 6 and 12 are not opposed to each other but alternately as shown in FIG. Further, in order to apply a predetermined clamping force to the paper sheet, one of the transport surfaces is configured to coincide with or overlap with the other transport surface.

[0010] The overlapped paper sheets 100a conveyed are:
Stop at the position of FIG. Further, when the rubber roller 15 is fixed at the same interval as the pulley 11 and the drive shaft 14 rotatably connected to the drive source 13 rotates, the paper sheet 100a sandwiched between the transport belt and the transport belt 12 are rotated.
Simultaneously in the directions of arrows 90a, 90b, and 90c to release the pinching between the belts,
a, 91b and 91c. This arrow 91
The sheet 100a is conveyed by applying a conveying force in the directions indicated by a, 91b, and 91c.

An example of a mechanism for transporting a sheet while releasing the holding force acting on the sheet will be described with reference to FIGS. 2 and 3. FIG. FIG. 2A is a side view of the paper sheet transport device. The conveyance path was fixed to a drive belt 8, a conveyance belt 6 hung on a pulley 3 fixed to a drive shaft 2 and a pulley 5 fixed to a driven shaft 4, and fixed to a drive shaft 8 and a pulley 11 fixed to a driven shaft 10. Conveyor belt 12 hung on pulley 9
And, it consists of. The arrangement of the conveyor belt is as shown in FIG.

The means for displacing paper sheets comprises a shaft 14 having a drive source (not shown) and a rubber roller 15 arranged on the shaft 14 so as to face the conveyor belt 12. 14 are mounted eccentrically with respect to the rotation center. Therefore, there are two cases, that is, a state in which the rubber roller 15 comes into contact with the conveyor belt 12 by the rotation of the shaft 14 and is pushed up, and a state in which the rubber roller 15 is not in contact. Also, paper sheet detection sensors 16 and 17 for detecting the presence or absence of paper sheets are provided, and when a paper sheet is detected, a signal is output (High).
State), if no signal is detected, no signal is output (Lo
w state).

The operation of the paper sheet shifting mechanism will be described. The overlapping sheets 100b and 100c are nipped and transported by the transport belts 12 and 6. At this time, the shaft 14 is not rotating, and the conveyor belt 12 and the rubber roller 15 are in a non-contact state. The holding state is as shown in FIG. 3A. Since the belts 12 and 6 are arranged so as to overlap with each other, the overlapping sheets 100b and 100c are deformed into a waveform and held.

When the sheet is further conveyed, the leading end of the sheet passes through the rubber roller 15 and is detected by the sheet detection sensor 16. The conveyance of the paper sheet is stopped by the signal emitted from the sensor 16.

After the conveyance of the paper sheets is stopped, the shaft 14 is rotated once by control means (not shown), and the rubber roller 15 pushes up the conveyance belt 12 together with the paper sheets 100b and 100c. As shown in FIG. 2B, the rotation of the rubber roller 15 pushes up the transport belt 12 together with the paper sheet in the direction of arrow 92a to release the pinching force acting on the paper sheet from the transport belt. This state is shown in FIG.
It is shown in (b). It comes into a non-contact state with the transport belt 6. Further, the paper sheet 100b is transported in the direction of the arrow 92b due to friction between the rubber roller 14 and the paper sheet 100b. Generally, since the frictional force between the paper sheets 100b and 100c is smaller than the static frictional force between the paper sheet 100c and the transport belt 12,
Only the paper sheet 100b is transported by the rubber roller 15.

The paper sheet detection sensor 17 detects whether the paper sheet 100b has been conveyed by a predetermined amount. If the sheet has been conveyed by a predetermined amount, the sheet detection sensor 17 becomes High.
In this state, a signal is transmitted to the control means (not shown), and the shifted sheets 100b and 100c are transported to the downstream transport path as they are. Even if the rubber roller 15 makes one rotation,
If the paper sheet detection sensor 17 is in the low state, it is determined that a predetermined amount of paper cannot be conveyed, and the paper sheet is conveyed until the paper sheet detection sensor 16 becomes the low state, and the shifting operation is performed again.

FIG. 4 shows an example of the form of a mechanism for transporting a sheet while releasing the holding force acting on the sheet. The transport path has the same configuration as in FIG. Further, the paper sheet detection sensors 16 and 17 are provided downstream of the paper sheet shift mechanism 20. The paper sheet shifting mechanism 20 includes a base portion 19 having a rotation axis.
And a shift member 18 having an elastic member formed in a semicircular ring shape.
Consists of When the shift mechanism 20 rotates, the overlapped paper sheets 100d sandwiched between the conveyance paths 100d
And 100e together with the transport belt 12 are pushed up in the direction of arrow 93b to release the belt clamping, and the sheet 100d is transported in the direction of arrow 93c.

The paper sheet detection sensors 16 and 17 have the function as described with reference to FIG. By forming the shift member 18 in a semicircular ring shape and by using an elastic body, the shift member is greatly deformed when pushing up the transport belt together with the paper sheet, and the contact area with the paper sheet is increased, and Leaves can be stably transported.

FIG. 5 shows a flow chart of the sheet shifting operation. Start of shifting operation by control means not shown
(21) When a signal is issued, conveyance (22) of paper sheets is started. At this time, the sheet is monitored by the sensor 1 as to whether or not the sheet arrives at the shifting portion (23). If the arrival of the paper sheet cannot be detected, the conveyance is continued. When the sheet is detected by the sensor 1, the conveyance of the sheet is stopped (24), and the rubber roller is rotated once (2).
5). The paper sheet is shifted by the rotation of the rubber roller. The shift amount of the sheet is monitored by the sensor 2 (26), and when a predetermined amount of movement is detected, the shift operation is terminated (30). If the predetermined shift amount is not achieved, the sheet is sent back (27). The reverse feeding operation is performed until the paper sheet is detached from the shift unit (28), and if the detachment is detected, the reverse feeding is stopped (29).
The conveyance is started in the normal conveyance direction, and the shift operation is performed again.

FIG. 6 shows an example in which the present invention is applied to an automatic cash transaction apparatus. The automatic teller machine 517 has a cash slot 5
01, a temporary stacker 508 for temporarily storing the deposited banknotes, a discriminating mechanism 504 for determining whether the banknotes can be handled in the apparatus, and a billing mechanism based on the information of the discriminating mechanism 504. A reversing mechanism 505 for reversing the front and back, safes 511, 512 and 513 having a mechanism for storing and taking out bills, reject boxes 506, 507 and 509 for storing bills determined to be unhandled by the discrimination mechanism 504, A bill cassette 510 for accommodating bills when the bills are collectively stored in the apparatus or when the bills are collectively taken out of the apparatus, and a transport path 5 for connecting each part.
03, an unusable bill storage 514 for storing bills determined to be unhandled by the discrimination mechanism 504 (for example, multi-fed bills, etc.), the sheet transport device 515 of the present invention, and the sheet transport device 515. A separation mechanism 516 for separating banknotes obtained by shifting the overlapped banknotes by a predetermined amount one by one;
Consists of

In the conventional automatic cash transaction apparatus, the discrimination mechanism 5
Although the banknotes determined to be unhandled by 04 were stored in the reject storage and could not be reused in the device, the unusable banknote storage 514 and the sheet transport device 515
By transporting the undecidable bills in the order of the separation mechanism 516, the undecidable bills can be sent out to the discrimination mechanism 504 one by one. Therefore, even if a banknote is once determined to be unhandled, it can be discriminated many times by taking the banknote into the transport path including the present invention.

As described above, since the conveyed overlapped sheets are conveyed with the pinching force released, the resistance from the conveyance belt does not act on the paper sheets, and It is also possible to suppress a change in posture and a variation in the transport amount. In addition, if the present invention is applied to an automatic teller machine, it is possible to repeatedly discriminate banknotes which were conventionally stored as unhandled banknotes in a reject box and could not be taken into a transport path in the apparatus. It is considered that uncertain banknotes can be reduced and banknotes in the device can be efficiently operated.

Further, in a transfer device (for example, a printer, etc.) that conveys a medium by sandwiching it between belts, if the present invention makes it possible to shift the medium reliably together with the detection of double feed, it is possible to separate the sheets one by one. Is considered possible, and it is considered that transport errors such as jams can be reduced.

[0024]

As described above, according to the present invention, when the overlapping sheets are shifted, the friction from the belt can be reduced, so that the posture change of the sheets due to the friction and the abrasion of the belt and the sheets are reduced. It is possible to provide a paper sheet transport device provided with a paper sheet shifting mechanism capable of reducing and reliably shifting overlapping paper sheets.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating an example of an embodiment of a paper sheet transport device according to the present invention.

FIG. 2 is a side view for explaining an example of the embodiment of the paper sheet transport device of the present invention.

FIG. 3 is a diagram illustrating a state in which a sheet is transported by the sheet transport apparatus of the present invention.

FIG. 4 is a side view illustrating an example of an embodiment of the paper sheet transport device of the present invention.

FIG. 5 is a view for explaining a control flow of the paper sheet transport device of the present invention.

FIG. 6 is a diagram illustrating a layout when the paper sheet transport device of the present invention is applied to an automatic cash transaction apparatus.

[Explanation of symbols]

1, 7, 13: drive source, 2, 8, 14: drive shaft, 4, 1
0: driven shaft, 3, 5, 9, 11: pulley, 6, 12: transport belt, 15: rubber roller, 16, 17: paper sheet detection sensor, 18: displaced elastic body, 19: base portion, 100
a, 100b, 100c, 100d, 100e ... paper sheets.

Claims (1)

[Claims] 1. A conveying device for nipping and transporting overlapping sheets, comprising: a nipping force releasing means for releasing the nipping, a conveying force applying means for applying a conveying force to the released paper sheets, and A paper sheet transport device comprising: