WO2021140549A1

WO2021140549A1 - Paper sheet storage device

Info

Publication number: WO2021140549A1
Application number: PCT/JP2020/000090
Authority: WO
Inventors: 山下　貴司; 石井　信彦; 宏宮崎
Original assignee: 富士通フロンテック株式会社
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2021-07-15
Also published as: EP4089654A4; EP4089654A1; JPWO2021140549A1

Abstract

A paper sheet storage device (14) is provided with: a storage space (20) in which paper sheets (6) are stored; a placement table (21) which is disposed in the storage space (20) and on which the paper sheets (6) are accumulated and placed; a support base (22) for supporting the placement table (21); a first lifting and lowering mechanism (23) for lifting and lowering the placement table (21), with respect to the support base (22), to a lifting position (P1) and a lowering position (P2); and a second lifting and lowering mechanism (24) for lifting and lowering the support base (22) in the storage space (20). The first lifting and lowering mechanism (23) has: a rack part (32) provided to the placement table (21); and a pinion part for moving the rack part (32).

Description

Paper leaf storage device

The present invention relates to a paper leaf storage device.

A banknote handling device such as an ATM (Automated Teller Machine) is provided with a banknote storage device for storing deposited banknotes. As a bill storage device of this type, a mounting table on which bills are collected and placed is raised and lowered by an elevating mechanism in a storage space in which bills are stored.

In this bill storage device, the bills stored in the storage space are gradually lowered as the bills are stored in the storage space, and when the mount moves to the bottom surface, which is the lower end of the storage space. It becomes full. Further, above the storage space, a pickup roller, a feeding roller, a separation roller, and the like for loading and unloading banknotes into and out of the storage space are provided.

Japanese Unexamined Patent Publication No. 2012-53637

In the above-mentioned bill storage device, in order to increase the storage amount of bills that can be stored in the storage space, the thickness of the mounting table occupied in the direction in which the bills are accumulated in the storage space, that is, the elevating direction of the mounting table It is possible to form it small. When the thickness of the mounting table is reduced, the height of the mounting surface of the mounting table is lowered as the thickness of the mounting table is reduced. Therefore, when the mounting table is moved to the uppermost position by the elevating mechanism. , The banknotes on the mounting surface cannot be brought into contact with the pickup roller that sends the banknotes on the mounting table. When the height (uppermost position) at which the mounting table can be raised by the lifting mechanism is extended upward in order to bring the banknotes on the mounting surface into contact with the pickup roller, the lifting mechanism interferes with the feeding roller or the like. Resulting in. When the position of the elevating mechanism is changed in order to avoid interference between the elevating mechanism and the feeding roller or the like, the space occupied by the elevating mechanism around the mounting table increases, which causes a problem of increasing the size of the entire device.

The disclosed technique has been made in view of the above, and an object thereof is to provide a paper leaf storage device capable of increasing the storage amount of paper leaves without increasing the size of the entire paper leaf storage device. And.

One aspect of the paper leaf storage device disclosed in the present application is a storage space for storing paper leaves, a mounting table provided in the storage space on which the paper leaves are accumulated and placed, and a front. A support base that supports the description stand, a first elevating mechanism that raises and lowers the previously described stand to an ascending position and a lowering position with respect to the support base, and a second elevating mechanism that raises and lowers the support base in the storage space. The first elevating mechanism includes a rack portion provided on the above-mentioned stand and a pinion portion for moving the rack portion.

According to one aspect of the paper leaf storage device disclosed in the present application, the storage amount of paper leaves can be increased without increasing the size of the entire paper leaf storage device.

FIG. 1 is a schematic view showing a bill handling device of an embodiment. FIG. 2 is a schematic view showing a bill storage device according to an embodiment. FIG. 3 is a perspective view showing a state in which the first elevating mechanism of the bill storage device of the embodiment raises the stage to the ascending position. FIG. 4 is a perspective view showing a state in which the first elevating mechanism of the bill storage device of the embodiment lowers the stage to the descending position. FIG. 5 is a plan view showing a support base and a first elevating mechanism arranged in a projection area of a stage in the bill storage device of the embodiment. FIG. 6 is a plan view for explaining the first elevating mechanism of the bill storage device of the embodiment. FIG. 7 is a cross-sectional view for explaining the first elevating mechanism of the bill storage device of the embodiment. FIG. 8 is a cross-sectional view of a main part for explaining an operation in which the first elevating mechanism in the embodiment raises the stage from the descending position. FIG. 9 is a cross-sectional view of a main part for explaining an operation in which the first elevating mechanism in the embodiment lowers the stage from the ascending position. FIG. 10 is a schematic diagram for explaining a bill storage device of a reference example.

Hereinafter, examples of the paper leaf storage device disclosed in the present application will be described in detail based on the drawings. The following examples do not limit the paper leaf storage device disclosed in the present application.

(Configuration of banknote handling device)
FIG. 1 is a schematic view showing a bill handling device of an embodiment. As shown in FIG. 1, the bill handling device 1 of the embodiment is composed of a deposit / withdrawal unit 11 for depositing / withdrawing bills 6, a discriminating unit 12 for discriminating bills 6 transported from the deposit / withdrawal unit 11, and a discriminating unit 12. It includes a plurality of temporary holding units 13 for temporarily accommodating the transported bills 6, and a plurality of storage units 14 for storing the bills 6 transported from each temporary holding unit 13.

Further, the bill handling device 1 has a transport mechanism 15 that transports the bill 3 between the

units

11, 12, 13, and 14 along the transport path 15a, and a control unit 16 that controls the

units

11, 12, 13, and 14, respectively. And. Although not shown, the transport mechanism 15 has a transport belt and a plurality of rollers constituting a transport path 15a for transporting banknotes 6, and includes a deposit / withdrawal unit 11, a discrimination unit 12, each temporary holding unit 13, and each storage. The portions 14 are arranged so as to be connected to each other. The transport mechanism 15 is configured to be capable of bidirectionally transporting the bill 6 to and from each storage unit 14. The control unit 16 is electrically connected to each of the discrimination unit 12, each temporary holding unit 13, each storage unit 14, and the transport mechanism 15.

As shown in FIG. 1, the storage unit 14 incorporated in the bill handling device 1 corresponds to the bill storage device of the embodiment. Hereinafter, the storage unit 14 will be described by paraphrasing the bill storage device 14. For convenience of explanation, when the banknote handling device 1 is viewed from the deposit / withdrawal unit 11 side in FIG. 1, the width direction of the banknote handling device 1 is the X direction, the front-back direction of the banknote handling device 1 is the Y direction, and the vertical direction of the banknote handling device 1. Is referred to as the Z direction. In the drawings after FIG. 1, the X, Y, and Z directions are shown as in FIG. 1. Further, in this embodiment, the banknote 6 is used as an example of the paper leaves, but the method is not limited to the banknote 6. Paper leaves also include securities such as bills, checks, gift certificates, various securities, and stock certificates.

(Configuration of banknote storage device)
FIG. 2 is a schematic view showing the bill storage device 14 of the embodiment. FIG. 3 is a perspective view showing a state in which the first elevating mechanism of the bill storage device of the embodiment raises the stage to the ascending position. FIG. 4 is a perspective view showing a state in which the first elevating mechanism of the bill storage device of the embodiment lowers the stage to the descending position.

As shown in FIGS. 2 and 3, the bill storage device 14 has a storage space 20 in which the bill 6 is stored and a stage as a mounting table provided in the storage space 20 in which the bill 6 is accumulated and placed. 21 and. Further, the bill storage device 14 includes a support base 22 that supports the stage 21, a first elevating mechanism 23 that raises and lowers the stage 21 to the ascending position P1 and the descending position P2 in the Z direction with respect to the support base 22, and a storage space. A second elevating mechanism 24 that elevates and lowers the support base 22 in the Z direction within 20, and a driving force transmission mechanism 31 that transmits a driving force to the first elevating mechanism 23 as the support base 22 is elevated and lowered by the second elevating mechanism 24. And.

The stage 21 has a mounting surface 21a on which the bill 3 is placed, and the mounting surface 21a moves in parallel to the ascending position P1 and the descending position P2 in a horizontal posture parallel to the XY plane. .. As shown in FIG. 4, when the stage 21 descends to the descending position P2, the stage 21 is placed on the support base 22. Further, the mounting surface 21a of the stage 21 moves in a horizontal posture between the upper end and the lower end in the storage space 20 along the vertical direction (Z direction). As shown in FIG. 3, the long side of the bill 6 is placed on the mounting surface 21a of the stage 21 in the direction along the X direction. Further, the stage 21 is provided with a rack portion 32, which will be described later, included in the first elevating mechanism 23.

Further, as shown in FIG. 2, a transport roller group having a pickup roller 25, a feeding roller (feed roller) 26, a separation roller 27, an acceleration roller 28, and the like is provided above the storage space 20. The bill storage device 14 carries the bill 6 into the storage space 20 by the transport roller group, and also carries out the bill 6 from the storage space 20. The details of the transport roller group will be described later.

Regarding the posture of the bill storage device 14, the X and Y directions are not limited to the horizontal direction, and the Z direction is not limited to the vertical direction. Further, in this embodiment, the side on which the bill 6 is taken in and out of the storage space 20 is referred to as the front side of the bill storage device 14, and the side opposite to the front side is referred to as the back side of the bill storage device 14.

(Projection area of the stage)
FIG. 5 is a plan view showing the support base 22 and the first elevating mechanism 23 arranged in the projection area S of the stage 21 in the bill storage device 14 of the embodiment. FIG. 5 shows a plane orthogonal to the elevating direction (Z direction) in which the second elevating mechanism 24 elevates and elevates the support base 22.

As shown in FIG. 5, the support base 22 and the first elevating mechanism 23 project the stage 21 on an XY plane orthogonal to the elevating direction (Z direction) in which the second elevating mechanism 24 raises and lowers the support base 22. It is arranged in the projected projection area S. Therefore, the external dimension of the support base 22 is formed to be smaller than the external dimension of the stage 21, and is formed to be within the projection region S of the stage 21.

As described above, when the stage 21 on which the bill 6 is placed descends between the upper end and the lower end of the storage space 20 along the Z direction, the support base 22 and the second support base 22 and the second stage 21 are formed in the projection area S of the stage 21. Since the 1 elevating mechanism 23 is arranged, it is possible to avoid increasing the size of the bill storage device 14 by the support base 22 and the first elevating mechanism 23.

(Structure of the first elevating mechanism)
FIG. 6 is a plan view for explaining the first elevating mechanism 23 of the bill storage device 14 of the embodiment. FIG. 7 is a cross-sectional view for explaining the first elevating mechanism 23 of the bill storage device 14 of the embodiment. FIG. 7 is a cross section taken along the line AA in FIG.

As shown in FIGS. 6 and 7, the first elevating mechanism 23 is arranged on both sides of the stage 21 in the X direction, respectively. Each first elevating mechanism 23 has a rack portion 32 provided on the stage 21 and a pinion portion 33 for moving the rack portion 32.

The rack portion 32 has a pair of first racks 32a and second racks 32b provided so as to face each other with the pinion portion 33 interposed therebetween. The first rack 32a and the second rack 32b are provided below the stage 21 so as to extend along the Z direction in which the stage 21 moves up and down. As shown in FIG. 7, the rack portion 32 is arranged in the opening 22a of the support base 22 so as to be movable in the Z direction with respect to the support base 22.

The pinion portion 33 includes a pair of first pinion 33a and a pair of second pinions 33b that mesh with the pair of first rack 32a and second rack 32b, respectively. The pair of the first pinion 33a and the second pinion 33b are provided so as to mesh with each other, and rotate in synchronization with each other. The first pinion 33a and the second pinion 33b are rotatably supported by a support shaft 33c provided on the support base 22, respectively. The first pinion 33a is meshed with a drive gear 58 described later of the driving force transmission mechanism 31, and the driving force is transmitted to the first pinion 33a by the driving gear 58. As described above, the first elevating mechanism 23 has a pair of the first rack 32a and the second rack 32b, and a pair of the first pinion 33a and the second pinion 33b meshed with each other, so that the stage 21 can be elevated. The first elevating mechanism 23 is compactly configured while stabilizing the above and increasing the reliability of the elevating operation.

In the first elevating mechanism 23, the driving force associated with the elevating operation of the second elevating mechanism 24 is transmitted to the first elevating mechanism 23 via the driving force transmission mechanism 31 described later, so that the second elevating mechanism 24 is supported by the second elevating mechanism 24. At the same time as raising and lowering the 22, the stage 21 is moved up and down with respect to the support base 22. That is, in the bill storage device 14, the stage 21 moves up and down in the Z direction at a constant elevating speed by the first elevating mechanism 23, while the support base 22 moves up and down in the Z direction at a constant elevating speed by the second elevating mechanism 24.

By operating the first elevating mechanism 23 and the second elevating mechanism 24 at the same time in this way, the elevating operation of the stage 21 in the storage space 20 can be stabilized. For example, the first elevating mechanism 23 and the second elevating mechanism 24 operate independently so as to start the descent of the stage 21 by the first elevating mechanism 23 after the descent of the support base 22 by the second elevating mechanism 24 is completed. Compared with the case, the ascending / descending operation of the stage 21 is stabilized, and the reliability of the operation of accumulating and paying out the bills 6 on the stage 21 is enhanced.

Further, the first elevating mechanism 23 moves the stage 21 from the ascending position P1 to the descending position P2 before the support base 22 lowered by the second elevating mechanism 24 reaches the lower end D of the elevating region M. It is configured. That is, by the time the support base 22 reaches the lower end D of the elevating region M, the stage 21 has completed the descending operation with respect to the support base 22, and stabilizes the elevating operation of the stage 21 in the storage space 20. The reliability of lifting operation is improved.

In other words, the first elevating mechanism 23 completes the ascent of the stage 21 with respect to the support base 22 when the support base 22 reaches the upper end U of the elevating region M. Therefore, when the support base 22 starts descending from the upper end U of the elevating region M, the stage 21 simultaneously starts descending from the ascending position P1 with respect to the support base 22, and after the stage 21 descends to the descending position P2, The support base 22 reaches the lower end D of the elevating region M.

As described above, in the first elevating mechanism 23, the lowering of the stage 21 is completed before the support base 22 reaches the lower end D of the elevating region M, so that the driving force transmission mechanism 31 is used as the support base 22 lowers. The transmission of driving force continues. Therefore, by using the torque limiter 59 described later, the driving force transmission mechanism 31 transmits the driving force transmitted by the driving force transmission mechanism 31 to the first pinion 33a of the pinion portion 33 as the support base 22 descends. It is blocked from being done. Therefore, in the structure in which the support base 22 continues to descend after the stage 21 moves to the descending position P2, it is possible to prevent the rack portion 32 and the pinion portion 33 of the first elevating mechanism 23 from being damaged.

(Elevating operation of the first elevating mechanism)
FIG. 8 is a cross-sectional view of a main part for explaining an operation in which the first elevating mechanism 23 in the embodiment raises the stage 21 from the descending position P2. FIG. 9 is a cross-sectional view of a main part for explaining an operation in which the first elevating mechanism 23 in the embodiment lowers the stage 21 from the ascending position P1.

As shown in FIG. 8, the first elevating mechanism 23 raises the first rack 32a by rotating the first pinion 33a counterclockwise by the drive gear 58 of the driving force transmission mechanism 31. At this time, the first pinion 33a is rotated counterclockwise, so that the second pinion 33b is rotated clockwise in synchronization with the first pinion 33a, thereby raising the second rack 32b. In this way, the first elevating mechanism 23 raises the first rack 32a and the second rack 32b by the first pinion 33a and the second pinion 33b that rotate in synchronization, thereby causing the rack portion 32 with respect to the support base 22. To raise the stage 21 from the descending position P2.

Further, as shown in FIG. 9, the first elevating mechanism 23 lowers the first rack 32a by rotating the first pinion 33a clockwise by the drive gear 58 of the driving force transmission mechanism 31. At this time, the first pinion 33a is rotated clockwise, so that the second pinion 33b is rotated counterclockwise in synchronization with the first pinion 33a, so that the second rack 32b is lowered. In this way, the first elevating mechanism 23 lowers the first rack 32a and the second rack 32b by the first pinion 33a and the second pinion 33b that rotate synchronously, so that the rack portion 32 with respect to the support base 22. Is lowered to lower the stage 21 from the ascending position P1.

(Structure of the second elevating mechanism)
As shown in FIG. 2, the second elevating mechanism 24 has a pair of elevating guide members 46 that movably guide the support base 22 along the elevating direction (Z direction), and the support base 22 in the elevating direction (Z direction). It has a drive belt 47 which is moved to. Further, the second elevating mechanism 24 has a pulley (not shown) on which the drive belt 47 is hung, a base support member 49 (see FIG. 6) connected to the support base 22, and a base support member 49 as the drive belt 47. It has a fixing member 50 and a fixing member 50 fixed to the.

The pair of elevating guide members 46 are arranged on both sides of the support base 22 in the X direction. Further, in the elevating guide member 46, a rack 46a for driving the driving force transmission mechanism 31 is formed along the Z direction over the elevating region M (see FIG. 2) of the support base 22, and the first elevating and lowering is performed. It also serves as a rack member for transmitting a driving force to the mechanism 23. The drive belt 47 is arranged along the Z direction, and the stage 21 is connected to a part of the length direction via the fixing member 50 and the base support member 49. Further, as shown in FIG. 2, the fixing member 50 is formed with a detection piece 50a whose position is detected by the lower end sensor 52 described later. The second elevating mechanism 24 is driven and controlled by the control unit 16 of the bill handling device 1 described above.

Further, as shown in FIG. 2, the drive belt 47 of the second elevating mechanism 24 is such that the bill 6 is fed from the stage 21 by the feeding roller 26 side of the support base 22 in the Y direction, that is, the feeding roller 26 and the separation roller 27. It is located on the side. As described above, in the bill storage device 14, the drive belt 47 is arranged in the empty space generated below the space for arranging the support structure of the transport roller group such as the feeding roller 26 and the separating roller 27. 2 The elevating mechanism 24 can be arranged compactly, and the bill storage device 14 is downsized.

In the storage space 20 of the bill storage device 14, as shown in FIG. 2, an upper end sensor 51 that detects the upper end of the bills 6 accumulated on the stage 21 and a stage 21 in which the bills 6 are accumulated are stored in the storage space 20. A lower end sensor 52 for detecting that the vehicle has descended to the lower end is provided.

The upper end sensor 51 is arranged at the upper end of the storage space 20, and has a light emitting unit 51a that emits detection light and a light receiving unit 51b that receives the detection light emitted by the light emitting unit 51a. The lower end sensor 52 is arranged at the lower end of the storage space 20, and has a light emitting unit 52a that emits detection light and a light receiving unit 52b that receives the detection light emitted by the light emitting unit 52a. The upper end sensor 51 and the lower end sensor 52 are electrically connected to the control unit 16, and the control unit 16 controls the second elevating mechanism 24 based on the detection results of the upper end sensor 51 and the lower end sensor 52.

The upper end sensor 51 controls that the upper end of the bill 6 placed on the stage 21 (the uppermost bill 6) blocks the detection light so that the bill 6 placed on the stage 21 reaches the upper end. Detected by unit 16. When the upper end sensor 51 detects the bill 6 on the stage 21, the control unit 16 controls the second elevating mechanism 24 so as to lower the stage 21 by a predetermined height. In the lower end sensor 52, the detection light is blocked by the detection piece 50a of the fixing member 50 connected to the stage 21, so that the stage 21 is lowered together with the support base 22 to the lower end of the storage space 20. Detected by. When the lower end sensor 52 detects the lowering of the stage 21, the control unit 16 determines that the storage space 20 is full of bills 6, and stops driving the second elevating mechanism 24 and the transport roller group.

(Structure of driving force transmission mechanism)
As shown in FIGS. 2 and 6 and 7, the driving force transmission mechanism 31 is composed of an elevating guide member 46 as a rack member provided over the elevating region M of the support base 22 and a rack 46a of the elevating guide member 46. It includes a first transmission gear 55, a second transmission gear 56, and a third transmission gear 57 that are rotated, and a drive gear 58 that drives the first pinion 33a of the first elevating mechanism 23.

The first transmission gear 55 is meshed with the rack 46a of the elevating guide member 46, and is rotatably provided on the base support member 49 (see FIG. 6) via the support shaft 55a. The second transmission gear 56 has a large-diameter gear portion 56a that meshes with the first transmission gear 55 and a small-diameter gear portion 56b that meshes with the third transmission gear 57, and has a small-diameter gear portion 56b that meshes with the third transmission gear 57. The support base 22 is rotatably provided. The second transmission gear 56 arranged on the left side in FIG. 6 is meshed only with the first transmission gear 55 and rotates the rotation shaft 56c. The third transmission gear 57 is rotatably provided on the support base 22 via the rotation shaft 57a. A drive gear 58 is provided on the rotation shaft 57a of the third transmission gear 57, and the drive gear 58 is rotated with the rotation of the third transmission gear 57. The drive gear 58 is meshed with the first pinion 33a of the first elevating mechanism 23.

Further, the driving force transmission mechanism 31 has a torque limiter 59 that cuts off the driving force transmitted to the pinion unit 33. The torque limiter 59 is provided on the rotation shaft 57a of the third transmission gear 57, and is arranged in the vicinity of the third transmission gear 57. As described above, when the second elevating mechanism 24 lowers the support base 22 with the stage 21 moved to the lowering position P2, the driving force transmission mechanism 31 transmits the third as the support base 22 lowers. The transmission of the driving force to the first pinion 33a of the pinion portion 33 is blocked by the gear 57 and the drive gear 58. Therefore, in the structure in which the support base 22 continues to descend after the stage 21 moves to the descending position P2, it is possible to prevent the rack portion 32 and the pinion portion 33 of the first elevating mechanism 23 from being damaged.

The stage 21 may be controlled so that the ascent to the ascending position P1 is completed before the support base 22 reaches the upper end U of the elevating region M. In this case, the driving force transmitted by the driving force transmission mechanism 31 may be cut off by the torque limiter 59 as the support base 22 rises after the stage 21 reaches the rising position P1.

Further, as shown in FIG. 5, the third transmission gear 57, the drive gear 58, and the torque limiter 59 of the driving force transmission mechanism 31 fit within the projection region S of the stage 21 except for a part of the third transmission gear 57. It is arranged like this.

In the embodiment, the elevating guide member 46 of the second elevating mechanism 24 also serves as a rack member of the driving force transmission mechanism 31, and the driving force transmission mechanism 31 is simplified. Not limited to this structure, the driving force transmission mechanism 31 may have a rack member (not shown) independent of the elevating guide member 46.

(Operation of driving force transmission mechanism)
In the driving force transmission mechanism 31 described above, when the support base 22 is raised and lowered by the second raising and lowering mechanism 24, the first transmission gear 55 is rotated by the rack 46a of the raising and lowering guide member 46. The rotation of the first transmission gear 55 causes the second transmission gear 56 to rotate, and the second transmission gear 56 rotates the third transmission gear 57. By rotating the third transmission gear 57, the drive gear 58 is rotated along with the rotation of the rotation shaft 57a. The rotation of the drive gear 58 causes the first pinion 33a to rotate. In this way, the driving force transmission mechanism 31 transmits the driving force to the pinion portion 33 via the rack 46a, the first transmission gear 55, the second transmission gear 56, the third transmission gear 57, and the drive gear 58.

(Structure of transport roller group)
As shown in FIG. 2, above the storage space 20, a pickup roller 25 that sends out the banknotes 6 on the stage 21 and a feeding roller 26 that separates and feeds out the banknotes 6 sent by the pickup roller 25 one by one. A transport roller group having a roller 27 and an acceleration roller 28 for accelerating and transporting the banknotes fed from the feeding roller 26 is arranged.

The pickup roller 25 is supported by the rotating shaft 25a and is arranged at a position facing the mounting surface 21a of the stage 21. The feeding roller 26 is supported by the rotating shaft 26a and is arranged on one end side of the stage 21 in the Y direction. The separation roller 27 is supported by the rotating shaft 27a and is arranged below the feeding roller 26. An idler roller (not shown) is rotatably supported on the rotation shaft 26a of the feeding roller 26, and the idler roller is arranged adjacent to the feeding roller 26. Further, the rotating shaft 26a of the feeding roller 26 is provided with a guide roller (not shown) at a distance from the feeding roller 26. A plurality of acceleration rollers 28 are arranged in the vicinity of the feeding roller 26 along the transport direction of the bill 6. Each acceleration roller 28 is supported by a rotating shaft 28a. The pickup roller 25, the feeding roller 26, the acceleration roller 28, and the guide roller are rotationally driven by a drive mechanism (not shown).

(Banknote storage operation)
In the bill storage device 14 configured as described above, when the bill 6 is not stored in the storage space 20, the stage 21 is located near the upper end of the storage space 20 and near the pickup roller 25. At this time, the stage 21 is in a state of being raised to the ascending position P1 by the first elevating mechanism 23. The second elevating mechanism 24 is based on the detection result of the upper end sensor 51 as the banknotes 6 are carried into the storage space 20 by the transport roller group such as the feeding roller 26 and the banknotes 6 are accumulated on the stage 21. Intermittently lowers the stage 21 together with the support base 22. The second elevating mechanism 24 gradually lowers the stage 21 as the number of bills 6 accumulated on the stage 21 increases.

Further, the first elevating mechanism 23 gradually lowers the stage 21 from the ascending position P1 to the descending position P2 at the same time as the second elevating mechanism 24 lowers the support base 22. As the number of banknotes 6 accumulated on the stage 21 increases, the bill storage device 14 lowers the support base 22 by the second elevating mechanism 24 and lowers the stage 21 to the lowering position P3 by the first elevating mechanism 23. Lower.

When the support base 22 lowered by the second elevating mechanism 24 descends to a predetermined position near the lower end D of the elevating region M, the stage 21 lowered by the first elevating mechanism 23 moves to the descending position P2, and the stage 21 Stops descending. Subsequently, the second elevating mechanism 24 lowers the stage 21 together with the support base 22 in a state where the stage 21 is lowered to the lowering position P2 as the number of bills 6 accumulated on the stage 21 increases. Then, when the support base 22 is moved to the lower end D of the elevating region M by the second elevating mechanism 24, the lower end sensor 52 detects the detection piece 50a of the support base 22, so that the stage 21 and the support base 22 are lowered. Stop.

In this way, the support base 22 is lowered by the second elevating mechanism 24, and the stage 21 is lowered with respect to the support base 22 by the first elevating mechanism 23, so that the difference in height between the ascending position P1 and the descending position P2 is different. However, the banknotes 6 can be further accumulated on the stage 21.

Contrary to the lowering operation of the stage 21 and the support base 22 described above, the second elevating mechanism 24 raises the stage 21 to the lower end D of the elevating region M when the banknotes 6 accumulated on the stage 21 are sent out by the transport roller group. Raise from to the upper end U. When the support base 22 raised by the second elevating mechanism 24 rises to a predetermined position near the lower end D of the elevating region M, the stage 21 rises from the lowering position P2 toward the ascending position P1 by the first elevating mechanism 23. Start. After that, the bill storage device 14 gradually raises the stage 21 toward the ascending position P1 by the first elevating mechanism 23 while raising the support base 22 by the second elevating mechanism 24.

When the support base 22 is moved to the upper end U of the elevating region M by the second elevating mechanism 24, the stage 21 is moved to the elevating position P1 by the first elevating mechanism 23, and the stage 21 is placed as shown in FIG. The bill 6 on the surface 21a is properly in contact with the pickup roller 25, and is smoothly fed by the pickup roller 25 to the feeding roller 26 and the separation roller 27 side.

(Reference example)
Here, the bill storage device 14 of the embodiment will be described in comparison with the bill storage device of the reference example that solves the problem of the present invention. FIG. 10 is a schematic diagram for explaining a bill storage device of a reference example. The structure of the first elevating mechanism of the bill storage device of the reference example is different from that of the first elevating mechanism 23 of the bill storage device 14 of the embodiment. In the reference example, the same components as those in the embodiment are designated by the same reference numerals as those in the embodiment, and the description thereof will be omitted.

As shown in FIG. 10, the bill storage device 114 of the reference example includes a first elevating mechanism 123 including a link mechanism (not shown) for vertically supporting the stage 21 with respect to the support base 22, and a first elevating mechanism. It includes a pair of rotating levers 134 for operating 123, and a torsion spring 135 for urging the rotating levers 134 so as to raise the stage 21 to the ascending position P1.

The rotation levers 134 are arranged on both sides of the support base 22 in the X direction, and the central portion of the rotation lever 134 in the length direction is rotatably supported by the support base 22 via the rotation shaft 141. Has been done. A roller 143 is rotatably provided at one end of the rotary lever 134, and one end of the rotary lever 134 is connected to the stage 21 via the roller 143. A guide groove 145 in which the roller 143 at one end of the rotary lever 134 moves is formed in the stage 21 along the Y direction. A roller 144 is rotatably provided at the other end of the rotary lever 134, and the roller 144 rolls along the guide surface 156 of the operating member 155 provided on the bottom surface 20a on the lower end side of the storage space 20.

A torsion spring 135 is attached to a rotating shaft 141 that supports the central portion of the rotating lever 134. One end of the torsion spring 135 is fixed to the support base 22, and the other end is fixed to the rotating lever 134. As a result, the torsion spring 135 urges the rotation lever 134 to rotate around the rotation shaft 141. Therefore, the initial state of the stage 21 is that the stage 21 is moved to the ascending position P1 by the urging force of the torsion spring 135.

In the first elevating mechanism 123 in the reference example, when the stage 21 approaches the lower end of the storage space 20, the stage 21 moves from the ascending position P1 to the descending position P2 by the rotating lever 134. Further, in the first elevating mechanism 123, when the stage 21 is separated from the lower end of the storage space 20, the stage 21 is moved from the descending position P2 to the ascending position P1 by the rotating lever 134.

By the way, since the rotating lever 134 and the torsion spring 135 are used in the bill storage device 114 of the reference example, the timing of the ascending / descending operation of the stage 21 with respect to the support base 22 may become unstable. For example, the state of accumulation of banknotes 6 on the stage 21 may fluctuate due to the influence of wrinkles and folding habits of the banknotes 6 accumulated on the stage 21. In such a case, the weight applied to the stage 21 changes according to the accumulation state of the bills 6 accumulated on the stage 21, and when the stage 21 is separated from the lower end of the storage space 20, the rotating lever 134 is appropriate. There is a risk that it will not rotate.

For example, if the rotation of the rotary lever 134 is insufficient when the stage 21 is separated from the lower end of the storage space 20, the roller 144 of the rotary lever 134 is retracted before the stage 21 moves to the ascending position P1. The rotation lever 134 may suddenly rotate when the support base 22 is raised by the second elevating mechanism 24 because the space 20 is separated from the operating member 155 at the lower end. At this time, since the stage 21 suddenly moves to the ascending position P1, the bill 6 on the stage 21 is strongly pressed by the pickup roller 25, and the feeding operation of the bill 6 becomes unstable.

Further, in the bill storage device 114 of the reference example, the elastic force of the torsion spring 135 that rotates the rotation lever 134 affects the operation of the stage 21 from the descending position P2 to the ascending position P1, but the torsion spring 135 It is difficult to properly set the elastic force, and the ascending / descending operation of the stage 21 is unstable. That is, when the elastic force of the torsion spring 135 is large, the stage 21 may not move properly to the descending position P2. If the elastic force of the torsion spring 135 is small, the stage 21 may not move properly to the ascending position P1.

On the other hand, in the bill storage device 14 of the embodiment, as compared with the above-mentioned reference example, the first rack 32a and the first pinion 33a of the rack portion 32 raise and lower the rack portion 32, and the second rack 32b and the second rack 32b Since the stage 21 is raised and lowered by the raising and lowering operation by the two pinions 33b, the raising and lowering operation can be stabilized, and the reliability of the bill 6 stacking operation and the feeding operation can be improved. In addition, in the bill storage device 14 of the embodiment, since the stage 21 is supported by the rack portion 32 and the pinion portion 33 so as to be able to move up and down, it is not necessary to assemble a complicated link mechanism as in the reference example, and the first raising and lowering mechanism 23 can be simplified and the manufacturing process of the bill storage device 14 can be simplified.

(Effect of Examples)
As described above, the bill storage device 14 of the embodiment has a first elevating mechanism 23 that elevates and lowers the stage 21 to the ascending position P1 and the descending position P2 with respect to the support base 22, and elevates and lowers the support base 22 in the storage space 20. The second elevating mechanism 24 is provided, and the first elevating mechanism 23 has a rack portion 32 provided on the stage 21 and a pinion portion 33 for moving the rack portion 32. In this way, the first elevating mechanism 23 raises and lowers the stage 21 by the rack portion 32 and the pinion portion 33, so that the rack portion 32 and the pinion portion 33 also serve as a support structure for supporting the stage 21 so as to be able to move up and down. , It is possible to avoid complicating and increasing the size of the first elevating mechanism 23. In addition, the stage 21 is moved up and down with respect to the support base 22 by the first elevating mechanism 23, so that the bill 6 is moved onto the stage 21 according to the difference in height between the ascending position P1 and the descending position P2 of the stage 21. It becomes possible to further accumulate in. Therefore, the amount of bills 6 stored in the storage space 20 can be increased without increasing the size of the entire paper leaf storage device 14.

Further, in the bill storage device 14 of the embodiment, the support base 22 and the first elevating mechanism 23 project the stage 21 on an XY plane orthogonal to the elevating direction in which the second elevating mechanism 24 raises and lowers the support base 22. It is arranged in the projection area S. As a result, compared to the structure in which the support base 22 and the first elevating mechanism 23 are arranged outside the space in which the stage 21 elevates and lowers, the entire bill storage device 14 is accommodated by the space in which the support base 22 and the first elevating mechanism 23 are arranged. It is possible to avoid increasing the size.

Further, in the bill storage device 14 of the embodiment, the first elevating mechanism 23 raises and lowers the stage 21 with respect to the support base 22 at the same time as the second elevating mechanism 24 raises and lowers the support base 22. As a result, the ascending / descending operation of the stage 21 in the storage space 20 can be stabilized. For example, the first elevating mechanism 23 and the second elevating mechanism 24 operate independently so as to start the descent of the stage 21 by the first elevating mechanism 23 after the descent of the support base 22 by the second elevating mechanism 24 is completed. Compared with the case, the ascending / descending operation of the stage 21 is stabilized, and the reliability of the operation of accumulating and paying out the bills 6 on the stage 21 is enhanced.

Further, in the first elevating mechanism 23 of the bill storage device 14 of the embodiment, the rack portions 32 have a pair of first racks 32a and second racks 32b provided so as to face each other, and the pinion portions 33 have a pair of pinion portions 33. It has a pair of first pinions 33a and a second pinion 33b that are meshed with the first rack 32a and the second rack 32b, respectively, and a pair of the first pinion 33a and the second pinion 33b are meshed with each other. As a result, the elevating operation of the stage 21 can be stabilized to improve the reliability of the elevating operation, and the first elevating mechanism 23 can be compactly configured.

Further, the bill storage device 14 of the embodiment includes a driving force transmission mechanism 31 that transmits a driving force to the first elevating mechanism 23 by an elevating operation in which the second elevating mechanism 24 raises and lowers the support base 22. The mechanism 31 is rotated by an elevating guide member 46 having a rack 46a provided over the elevating region M of the support base 22 and a rack 46a of the elevating guide member 46 to rotationally drive the pinion portion 33 of the first elevating mechanism 23. It has a first transmission gear 55 and the like. This makes it possible to drive the first elevating mechanism 23 by utilizing the elevating operation of the second elevating mechanism 24 without using an independent drive source or control for driving the first elevating mechanism 23. It becomes possible to simplify the bill storage device 14.

Further, in the bill storage device 14 of the embodiment, the driving force transmission mechanism 31 has a torque limiter 59 that cuts off the driving force transmitted to the pinion portion 33, and is a support base lowered by the second elevating mechanism 24. Before the 22 reaches the lower end D of the elevating region M, the first elevating mechanism 23 moves the stage 21 from the ascending position P1 to the descending position P2. As a result, the lowering operation of the stage 21 with respect to the support base 22 is completed by the time the support base 22 reaches the lower end D of the elevating area M, so that the elevating operation of the stage 21 in the storage space 20 is stabilized and the ascending / descending operation is completed. The reliability of operation is improved. Further, after the stage 21 has moved to the lowering position P2, the torque limiter 59 blocks the driving force transmitted by the driving force transmission mechanism 31 as the support base 22 lowers from being transmitted to the pinion portion 33. Becomes possible. Therefore, it is possible to prevent the rack portion 32 and the pinion portion 33 of the first elevating mechanism 23 from being damaged when the support base 22 continues to descend after the stage 21 has moved to the descending position P2.

1 Banknote handling device 6 Banknotes (paper leaves)
14 Banknote storage device (paper leaf storage device)
20 Storage space 21 Stage (mounting stand)
22 Support base 23 1st elevating mechanism 24 2nd elevating mechanism 31 Driving force transmission mechanism 32 Rack part 32a 1st rack (rack)
32b 2nd rack (rack)
33 Pinion part 33a 1st pinion (pinion)
33b 2nd pinion (pinion)
46 Lifting guide member (rack member)
46a Rack 49 Base support member 55 1st transmission gear (transmission gear)
56 Second transmission gear (transmission gear)
57 Third transmission gear (transmission gear)
58 Drive gear (transmission gear)
59 Torque limiter D Lower end U Upper end M Lifting area P1 Ascending position P2 Lowering position S Projection area

Claims

A storage space for storing paper leaves and
A mounting table provided in the storage space on which the paper sheets are accumulated and placed,
A support base that supports the above-mentioned stand and
A first elevating mechanism that elevates and elevates the above-mentioned stand to the ascending position and the descending position with respect to the support base.
A second elevating mechanism for elevating and elevating the support base in the storage space is provided.
The first elevating mechanism is a paper leaf storage device having a rack portion provided on the above-mentioned stand and a pinion portion for moving the rack portion.
The support base and the first elevating mechanism are arranged in a projection region in which the above-mentioned stand is projected on a plane orthogonal to the elevating direction in which the second elevating mechanism raises and lowers the support base.
The paper leaf storage device according to claim 1.
The first elevating mechanism raises and lowers the above-mentioned stand with respect to the support base at the same time as the second elevating mechanism raises and lowers the support base.
The paper leaf storage device according to claim 1.
The rack portion has a pair of racks provided so as to face each other.
The pinion portion has a pair of pinions that are meshed with each other in the pair of racks, and the pair of pinions are meshed with each other.
The paper leaf storage device according to claim 1.
The second elevating mechanism further includes a driving force transmission mechanism for transmitting a driving force to the first elevating mechanism by an elevating operation for raising and lowering the support base.
The driving force transmission mechanism includes a rack member provided over the elevating region of the support base, and a transmission gear that is rotated by the rack member to rotationally drive the pinion portion of the first elevating mechanism.
The paper leaf storage device according to claim 1.
The driving force transmission mechanism has a torque limiter that cuts off the driving force transmitted to the pinion portion.
The first elevating mechanism moves the above-mentioned pedestal from the ascending position to the descending position before the support base lowered by the second elevating mechanism reaches the lower end of the elevating region.
The paper leaf storage device according to claim 5.