JP3454963B2 - Paper sheet detection device of paper sheet processing machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper sheet processing machine such as a banknote depositing / dispensing machine used in a financial institution for performing predetermined processing of paper sheets, and particularly for detecting the presence or absence of paper sheets. Paper sheet detection device.

[0002]

2. Description of the Related Art A paper sheet processing machine provided with a stage which can be raised and lowered in a storage box for storing paper sheets and which can raise and lower the stage according to the amount of paper sheets accumulated on the stage. As such, a device disclosed in Japanese Patent Laid-Open No. 3-11490 has been conventionally known.

The above-mentioned device is provided with a plurality of sensors for detecting the position of the stage, and the remaining amount of paper sheets is known from the height position of the stage detected by the sensor.

Further, as a device capable of detecting whether or not one sheet is present, for example, in Japanese Utility Model Laid-Open No. 59-1
There is one disclosed in Japanese Patent No. 70556. This device does not detect the paper sheets on the stage where they are placed and lifted, but if the paper sheets are accidentally placed on the pusher that pushes the paper sheets into the storage It is designed to detect this when it happens. As a means therefor, there are two pairs of optical sensors provided so that the optical axis obliquely penetrates through two different locations in the storage, and the pusher has a notch through which the optical axis of the optical sensor passes at the predetermined location. The presence or absence of the paper sheet is detected depending on whether or not the optical axis of the optical sensor is shielded by the paper sheet when the pusher moves to a predetermined position.

[0005]

However, in the former prior art described above, the detection of the remaining amount of paper sheets is extremely rough, such as near end, and it is impossible to detect whether or not one sheet remains.

Further, in the latter prior art described above, even if one sheet of paper can be detected without any problem as long as the paper exists in a normal state without being bent, the paper can be detected. If the paper is bent or missing and there is no paper at the position where the optical axis of the optical sensor passes, the existence of the paper cannot be detected and the paper exists. However, there is a problem that it is not detected. This is one-dimensional detection because one optical axis of the optical sensor passes through only one predetermined position of the paper sheet, and the above-mentioned detection error is likely to occur. In particular, if the paper sheets are banknotes, the above-mentioned detection error is likely to occur because the paper is often folded and the reliability is poor.

If the number of optical sensors installed is increased in order to solve the above-mentioned point, the cost is affected, and a new problem arises that not only the cost of the apparatus becomes high but also the number of assembling steps increases.

In view of this, the present invention is a sheet processing machine capable of reliably detecting the presence of a bent or missing sheet without increasing the cost or the number of assembling steps. The purpose of the invention is to provide a class detection device.

[0009]

As means for solving the problems of the above-mentioned conventional techniques, the present invention provides a stage which can be raised and lowered in a storage box for storing paper sheets and is integrated on the stage. In a paper sheet processing machine having a mechanism for raising and lowering the stage according to the amount of paper sheets to be provided, a plurality of optical sensors arranged so that the optical axis obliquely penetrates a plurality of different positions in the storage case, A plurality of long holes formed on the paper sheet mounting surface portion of the stage and through which each optical axis of the optical sensor can pass while the stage moves up and down within a predetermined range; and the stage is located within the predetermined range. one to detect
Of the proximity sensor and the control of the raising and lowering of the stage, and on the condition that the optical axis of the optical sensor is not completely shielded within a predetermined range from when the proximity sensor detects the stage to when it does not detect the stage. It is characterized by including a control unit that determines that there is no match.

According to a second aspect of the present invention, the plurality of optical sensors are arranged at different horizontal positions and different vertical positions. According to a third aspect of the present invention, the proximity sensor includes a magnet provided on the stage side and a magnetic sensor provided on the sheet processing machine main body side.

[0011]

The light from a plurality of optical sensans two-dimensionally passes through a plurality of different positions in the storage cabinet, and therefore there is a sheet of paper on the stage, which is bent or missing. Also detects the presence of the paper sheet. Further, it can be seen that there is no paper sheet on the stage when all the optical axes of the optical sensors are not shielded within a predetermined range from when one proximity sensor detects the stage until when it does not detect the stage.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in the drawings.

FIG. 1 is a schematic sectional view of an example of a banknote depositing / dispensing machine to which the present invention is applied. This banknote depositing / dispensing machine has a banknote P on a top surface of a machine body 1 in a standing position in a horizontal position. There is a banknote loading section 2 to be loaded into the banknote loading section 2, and the feeding port section of this loading section 2 is provided with a feeding mechanism 6 including a picker roller 3, a feed roller 4 and a gate roller 5 for feeding the banknotes P one by one. The banknotes P carried into the machine body 1 by the carry-in mechanism 6 pass through the transport path 7 arranged below the loading section 2 in the machine body 1, and are identified by the identification unit 8 as to the denomination, damage,
Authenticity, front and back, etc. are identified, and based on the identification result, they are sent through the downstream transport path 9, and the inside-out banknote P is inverted by the obverse / reverse reversing mechanism 10, and inside the storage box 11 of each denomination.
11 is sent to the transfer path 13 to the temporary holding sections 12, 12 ... And is sent into the respective temporary holding sections 12, 12 through the sorting means 14, 14 ... It is like this. Also, the distribution means 1
At a position opposite to 4, 14, ..., A kicker roller 15, a payout roller 16 used when paying out and withdrawing the banknote P from the temporary holding section 12 or the storage case 11, and a gate opposite thereto. .. each of which is composed of a roller 17 (reverse rotation roller), a conveyor belt 18, etc. are provided. The money is withdrawn to the gold mouth (cumulative deposit mouth) 20. The withdrawal-reject banknote is discharged to the withdrawal-reject port 21.

The storage boxes 11, 11, ... Are loaded in parallel in a vertical position in a machine frame 22 that can be pulled out from the front surface of the machine body 1, as shown in FIG. ing. In FIG. 2, SD is a solenoid for locking the machine frame 22 when the machine frame 22 is stored in the machine body 1. The solenoid SD is provided in the machine body 1. 22 is engaged with the hook 24 and locked so that it cannot be pulled out, and the engaging claw 23 is rotated clockwise in FIG. 2 by the excitation of the solenoid SD to release the engagement with the hook 24. , Machine frame 2
2 can be pulled out. In FIG. 1, reference numeral 26 denotes an operation unit arranged at one side of the upper surface of the machine body 1 at a biased position, 27 a display, and 28 a receipt issuing unit.

FIG. 3 is a partially cutaway view of one of the storage boxes 11, which has a box shape having a vertically long rectangular cross-sectional shape, the upper surface of which is sufficient for bills P to enter and leave in a horizontal state. An opening 11a having a large size is provided, and a handle 29 is attached so as to be able to rise up and down so as to straddle the opening 11a in the longitudinal direction, and the opening 11a is opened and closed by a shutter 30 provided in the storage 11. In addition, a stage 31 for accumulating and supporting the banknotes P on the upper surface is provided in the storage 11 so as to be able to move up and down.

As shown in FIG. 4, the shutter 30 is in the shape of a shutter door that moves along guides 32 arranged on both sides of the opening 11a of the storage case 11 in the right-angled direction.
The base portion of the shutter 30 is attached to the shutter opening / closing belt 35 wound between the upper and lower pulleys 33, 34 on the inner side surface of the housing by a fixing member 36, and the belt 35 is rotated in the direction of arrow A in FIG. The shutter 30 is configured to move in a direction of closing the opening 11a by the movement.

FIG. 5 is an exploded view of an example of the stage 31 and its lifting mechanism 37. Stage 31 above
Has a rectangular shape made of a flat plate material, and has a surface approximately the same size as the bill P, the lower surface of which is supported by a substrate 39 by a pantograph 38, and the pantograph 38 is wound around an intersection axis 40 thereof. The coil spring constantly urges the stage 31 in a direction to push it upward.

At both ends of the substrate 39, mounting members 41,
42 are attached, and guide grooves 46a of the pulley support member 46 are provided above and below the outer surfaces of the attachment members 41, 42.
The guide rollers 43, 43 that fit in the shafts are respectively attached to the shafts. Further, a magnet 44 functioning for detecting the position of the stage 31 is attached to the side surface of the one attachment member 41 via a fixture 45 ', and the side surface of the other attachment member 42 is fixed to the lifting mechanism 37. A tool 45 is attached.

The elevating mechanism 37 of the stage 31 has a pulley supporting member 46, and the pulley supporting member 46 includes a first pulley 47 from the top and a second pulley 4 in the middle.
8, a third pulley 49, and a lower fourth pulley 50 are axially attached to each other, and an upper pulley 51 and a lower pulley 52 are axially attached to upper and lower positions of an inner portion of the storage 11, respectively. Stage lifting belt 5
3 is wound around the upper pulley 51, the second pulley 48, the first pulley 47, the fourth pulley 50, the third pulley 49, and the lower pulley 52. The fixing member 45 of the stage 31 is fixed to the belt 53 by penetrating through a window hole 54 formed in the pulley supporting member 46 in the vertical direction.

The belts 53 are provided at symmetrical positions, and when the belts 53 rotate in the direction of arrow B in FIG. 4, only the stage 31 first rises, and the fixing members 45 thereof are the window holes of the pulley supporting member 46. When it hits the upper end of 54, it is raised together with the pulley support member 46, so that the stage 31 moves up and down in a large stroke range from the most lowered position to the most raised position. The pulley support member 46 is a guide rail 11b on the inner surface of the storage 11.
It goes up and down along.

At the shaft end of the pulley 33 above the shutter opening / closing belt 35 and the shaft end of the upper pulley 51 of the stage lifting belt 53, as shown in FIG. The machine frame 2 is provided so as to be exposed on the side surface of the machine frame 2 when the storage case 11 is loaded into the machine frame 22.
The transmission parts 55a and 56a provided on the second side are jointed to receive the transmission of rotation.

A pair of claws 57, 57, 58, 58 are provided on the shaft 5 on both sides in the longitudinal direction of the opening 11a of the storage case 11.
It is pivotally supported by 9, 60 and is provided inside the storage box 11 in an upright posture so that it can be tilted down.
One end of the interlocking lever 62 is connected to the short arm 61 that is fixed to 0, and the other end of the interlocking lever 62 is connected to the storage box 11 by the shaft 6
When the shutter 30 is closed, the tip of the shutter 30 pushes down one of the pawls 57, 57, pushes the upper end of the operating lever 64, and pulls the interlocking lever 62. The claws 58, 58 are arranged to fall inward of the storage case 11, and normally have a role of standing up by a spring (not shown) to guide the banknotes when the banknotes are stored in the storage case 11.

As shown in FIGS. 5 and 7, the stage 31 has elongated holes 65, 65, 65, 65 extending in the lateral direction thereof.
65 are formed at the central position in the longitudinal direction and the intermediate positions on both sides thereof, and these elongated holes 65, 65, 65 are provided at mutually different positions in the lateral direction of the stage 31.

Further, on the wide side surface of the storage case 11, through holes 66, 66, 66 (shown in FIG. 3) are formed at positions corresponding to the long holes 65, 65, 65 of the stage 31 and at different vertical positions. ) Is formed, and the storage box 1 is provided on the machine frame 22 side.
When 1 is loaded, the through holes 66, 66, 66 on one surface side thereof,
Optical axes 68, 6 are formed in the long holes 65, 65, 65 of the stage 31 and the through holes 67, 67, 67 (shown in FIG. 6) on the other surface side of the storage case 11.
8,68 optical sensor S ₁ which controls the detection of the presence or absence of the bill as and vertically different positions diagonally in a vertical _plane, S _2, S ₃
Is provided. In this embodiment, the case where the bill P is detected at three points is shown.
The number of optical sensors and the number of optical sensors provided for each are three.

[0025] The detection of when the optical axis 69 in the longitudinal direction of the stage 31 is disposed another optical sensor S ₄ so as to cross obliquely in the horizontal plane, which is mainly bills are lifted curled Take charge.

Further, in the machine frame 22, a proximity for detecting that the stage 31 is located at a position in a predetermined range H where the detection by the optical sensors S ₁ , S ₂ , S ₃ , S ₄ is performed. A sensor S ₅ is provided, and the proximity sensor S ₅ operates by sensing the magnetic force of the magnet 44 provided on the stage 31, and controls the presence of the stage 31.

Detection signals from the above optical sensors are input to the control unit 70 (FIG. 10). The control unit 70 controls the drive system M ₂ of the lifting mechanism 37 of the stage 31 and also controls the optical sensors within a predetermined range H from when the proximity sensor S ₅ detects the stage 31 until when the proximity sensor S ₅ does not detect the stage 31. All optical axes 6 of S ₁ , S ₂ , S ₃ and S ₄
It is determined that there is no bill on the condition that 8, 68, 68 and 69 are not shielded from light.

In FIG. 9, S ₆ , S ₇ , and S ₈ are detection means (reed switch, etc.) for detecting the open / closed state of the shutter 30, that is, fully closed, half-opened, and fully opened. ₁ is controlled to fully open after the storage case 11 is loaded, fully close when the storage case 11 is pulled out, and half open when the banknote is empty in the storage case 11.

Next, the operation of the above embodiment will be described.

The pull the machine frame 22 from the fuselage 1, when loading the storage case 11 which banknotes P is housed in the machine frame 22, the machine frame 22 side of the shutter opening and closing electrical drive system M ₁ and stage elevating mechanism driving each transfer unit 55a of the system _{M 2,} 56a, and the respective drive receiving portions 55, 56 of the storage case 11 is jointed, in a state that can receive the transmission of rotation. At this time, the shutter 30 is locked by a shutter lock mechanism (not shown), and the claws 57 and 58 are tilted inward when the shutter 30 is closed. Then, when the machine frame 22 is pushed into the machine body 1, the locking claw 23 engages with the hook 24 and is locked so that it cannot be pulled out.

When this lock is confirmed, the shutter opening / closing electric drive system M ₁ is operated through the control unit 70, the shutter opening / closing belt 35 is rotated in the direction opposite to the arrow A in FIG. Is in a fully opened state (FIG. 8 (A)).

Then, the stage elevating mechanism drive system M ₂ is actuated to rotate the stage elevating belt 53 in the direction of arrow B in FIG. 4, which raises the stage 31 (see FIG. 8).
(B)) Further, the rotation of the belt 53 raises the pulley support member 46, the stage 31 projects from the opening 11a of the storage case 11 (FIG. 8C), and the banknotes P accumulated on the stage 31a. The upper surface of is pressed against the scratch roller 15 of the feeding mechanism 19. This pressing is appropriately maintained by the biasing spring of the pantograph 38 of the stage 31.

When a withdrawal command is issued, the above-mentioned payout mechanism 1
The banknotes 9 are driven to draw out the banknotes P on the stage 31 one by one, and the banknotes P are dispensed to the dispensing port 20 through the route shown in FIG.

In the above, the stage 31 passes through the area of the predetermined range H while moving upward, but the arrival of the stage 31 in the range H is the proximity sensor S ₅ and the stage 31.
Of the magnet 44 of FIG.

While the stage 31 passes through the predetermined range H, the optical axes 68, 68, 6 of the optical sensors S ₁ , S ₂ , S ₃ are moved.
The long holes 65, 65, 65 of the stage 31 are sequentially approached to the position of 8. At this time, even one banknote P on the stage 31
When is placed, all or some of the optical axes 68, 68, 68 are blocked by the bill P, and the presence of bill is detected. This detection is performed by the optical sensors S ₁ , S ₂ , S
_Since the position of ₃ is different vertically, it is possible to detect even if the banknote P is folded and a part is lifted up.
The floating is also detected by an optical sensor S ₄ having an optical axis 69 that obliquely crosses the longitudinal direction of the stage 31.

Thus, during the period when the stage 31 moves in the predetermined range H, it is detected whether or not the banknote P is present, and the optical axis of any of the optical sensors S ₁ , S ₂ , S ₃ , and S ₄ is detected. When 68, 68, 68, 69 are not cut off within the above range H, a signal indicating that there is no bill is input to the control unit 70, and it is determined that there is no bill, and the stage elevating mechanism drive system M ₂ is controlled to control the stage 31. Is lowered to a predetermined position and the shutter opening / closing electric drive system M ₁ is controlled to open the shutter 30 in a half open state. The shutter 30 is half-opened when the machine frame 22 is pulled out.
In order to prevent the claws 57 and 58 of the la 1 from being tilted by the shutter 30 so as not to obstruct the drawing, the inside of the storage case 11 is visually checked as shown in FIG. To do so. Therefore, the machine frame 22
The presence of the empty storage case 11 can be immediately identified when the is pulled out, and it is not necessary to open the shutter 30 and check the inside. As for the storage case 11 in which the banknotes P are stored, the shutter 30 is fully closed as shown in FIG.
Even if it is locked and pulled out from the machine casing 22 after the machine casing 22 is pulled out, it functions as a safe.

[0037]

As described above, according to the present invention, a plurality of optical sensors that obliquely pass through a plurality of positions having different optical axes are provided in the storage box, and the paper sheet mounting stage that moves up and down in the storage box is provided. If there is no paper sheet provided that all the optical axes of the respective optical sensors have not been shielded during the period from the detection of being located within a predetermined range by one proximity sensor until the detection is stopped. Since the determination is made, the plurality of optical sensors detect two-dimensionally within the predetermined range, which enables the detection of a wide range with a small number of optical sensors, and thus the sheets can be folded. Even if there is, it is possible to reliably detect its presence.

According to the second aspect , since the plurality of optical sensors are provided at different positions in the horizontal direction and the vertical direction, various folding patterns of the paper sheets can be formed even if the range of elevation of the stage is narrow. The effect that can be dealt with is obtained.

Further, according to claim 3 , a proximity sensor for detecting that the stage is located within a predetermined range is provided with a magnet provided on the stage side and a magnetic sensor provided on the machine side (a reed switch, a hall sensor, etc.). ) And has the advantage of being easily and inexpensively obtained.

[Brief description of drawings]

FIG. 1 is a schematic sectional view showing an example of a banknote handling machine as an application target of the present invention.

FIG. 2 is a perspective view showing a situation in which a storage is loaded in the banknote handling machine of FIG.

FIG. 3 is a partially cutaway perspective view showing one of the storage cases.

FIG. 4 is a side view showing an example of a shutter opening / closing mechanism and a stage raising / lowering mechanism of the same storage.

5 is an exploded perspective view of the stage lifting mechanism of FIG.

FIG. 6 is an explanatory diagram showing a relationship between an optical sensor arranged in a storage and a stage.

FIG. 7 is a plan view of the same.

FIG. 8A to FIG. 8C are explanatory views showing the ascending / descending state of the stage.

9A to 9C are explanatory views showing the opened / closed state of the shutter.

FIG. 10 is a control block diagram.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Airframe 2 Paper sheet loading section 6 Retracting mechanism 8 Identification section 11 Storage box 12 Temporary holding section 14 Sorting means 19 Distributing means 20 Dispensing opening 21 Dispensing / rejecting opening 22 Machine frame 30 Shutter 31 Stage 35 Shutter opening / closing belt 37 Stage Elevating Mechanism 44 Magnet 46 Pulley Supporting Member 53 Stage Elevating Belt 55, 56 Drive Receiving Section 57, 58 Claw 65 Long Hole 66, 67 Through Hole 68, 69 Optical Axis S _{1 to} S ₄ Optical Sensor S ₅ Proximity Sensor S _{6 to} S ₈ Shutter detection means (reed switch) H Predetermined range

Claims (3)

(57) [Claims] 1. A paper sheet processor having a mechanism for vertically moving a stage in a storage box for storing paper sheets, and having a mechanism for moving the stage up and down according to the amount of paper sheets accumulated on the stage, A plurality of optical sensors arranged so that the optical axes respectively obliquely pass through a plurality of different positions in the storage, and a stage on which a paper sheet mounting surface of the stage is formed, while the stage moves up and down within a predetermined range. A plurality of long holes through which each optical axis of the optical sensor can penetrate, one proximity sensor that detects that the stage is located within a predetermined range, and the proximity sensor controls the stage up and down and the proximity sensor moves the stage. A paper sheet, comprising: a control unit that determines that there is no paper sheet on the condition that all optical axes of the optical sensor are not shielded within a predetermined range from detection to non-detection. The paper sheet detection apparatus of the processing machine. 2. The paper sheet detection device for a paper sheet processor according to claim 1, wherein the plurality of optical sensors are arranged at different positions in the horizontal direction and different positions in the vertical direction. 3. The paper sheet handling machine according to claim 1, wherein the proximity sensor includes a magnet provided on the stage side and a magnetic sensor provided on the paper sheet handling machine main body side. Paper sheet detection device.