Patent application title: Paper sheet feeding apparatus and foreign matter detection method
Technical field
[0001]
　The present invention relates to a sheet feeding apparatus and a foreign matter detection method.
Background art
[0002]
　For example, a cash dispenser (hereinafter referred to as an ATM (Automated Teller Machine)) includes a bill handling device that handles bills as paper sheets. The bill handling apparatus has a deposit / withdrawal unit for taking in and out a bill, and the deposit / withdrawal unit is provided with a bill feeding device for feeding the bill into the interior of the bill handling apparatus. This type of bill feeding device has a feeding unit for feeding the bills, and feeds the bills into the bill handling apparatus by separating and feeding the bills placed in the loading unit one by one.
Prior art documents
Patent document
[0003]
Patent Document 1: JP-A-2015-180981
Patent Document 2: JP-A-2016-33783
Summary of the invention
Problems that the Invention is to Solve
[0004]
　By the way, for example, a plurality of bills bundled by a binding member such as a rubber band, a clip, and a staple may be inserted into the insertion portion of the bill feeding device. In this case, the banknote feeding device can not separate the banknotes bundled by the binding member one by one, and by feeding the banknotes bundled by the binding member, the banknotes or the binding member may be clogged on the transport path, There is a possibility that the bill feeding device may be damaged by the binding member.
[0005]
　As a bill delivery device of related art, for example, a configuration in which a binding member is detected by imaging a binding member by a camera and image analysis, and a configuration in which a metal foreign object such as a clip is detected by a magnetic sensor are known. However, adding such a configuration to the bill feeding device has the disadvantage of increasing the manufacturing cost of the bill feeding device.
[0006]
　The disclosed technology has been made in view of the above, and provides a sheet feeding device and a foreign matter detecting method that can realize a configuration for detecting a binding member in which sheets are bundled at a relatively low cost. The purpose is
Means to solve the problem
[0007]
　One aspect of a sheet feeding device disclosed in the present application includes a sheet feeding unit for inserting sheets, a feeding roller for feeding sheets stored in the sheet feeding unit, a rotating shaft for rotating the feeding roller, and A detection member rotatably supported by the rotation shaft around a rotation shaft and rotated by a binding member obtained by bundling paper sheets is provided, and a first detection unit detecting a rotation of the detection member.
Effect of the invention
[0008]
　According to one aspect of the paper sheet feeding device disclosed in the present application, the configuration for detecting the binding member in which the paper sheets are bundled can be realized relatively inexpensively.
Brief description of the drawings
[0009]
FIG. 1 is a schematic view showing a bill handling apparatus of an embodiment.
FIG. 2 is a schematic view showing a bill feeding device included in the bill handling apparatus of the embodiment.
FIG. 3 is a plan view showing a bill feeding device of the embodiment.
FIG. 4 is a side view showing the bill feeding device of the embodiment.
FIG. 5 is a rear view showing the bill feeding device of the embodiment from the side opposite to the insertion portion side.
FIG. 6 is a flow chart for explaining the control operation of the drive mechanism when the first detection unit detects the binding member in the bill feeding device of the embodiment.
FIG. 7 is a flow chart for explaining the control operation of the drive mechanism when the second detection unit detects skew of the bill in the bill feeding device of the embodiment.
MODE FOR CARRYING OUT THE INVENTION
[0010]
　Hereinafter, an embodiment of a sheet feeding device and a foreign matter detecting method disclosed in the present application will be described in detail based on the drawings. The following embodiments do not limit the sheet delivery device and the foreign matter detection method disclosed in the present application.
Example
[0011]
　(Composition of a bill handling device)
　Drawing 1 is a mimetic diagram showing a bill handling device of an example. As shown in FIG. 1, the bill handling apparatus 1 of the embodiment includes a deposit / withdrawal unit 5 for depositing and dispensing the bill 3, a discrimination unit 6 for discriminating the bill 3, and a bill 3 temporarily. A plurality of storage units 7 as accommodation units for accommodation and a plurality of storage units 8 for storing the bills 3 are provided. Further, the bill handling apparatus 1 has a transport mechanism 10 having a bidirectional transport path 9 for mutually interconnecting the deposit / withdrawal unit 5, the discrimination unit 6, the storage unit 7, and the storage unit 8 and transporting the banknote 3 in two directions. And a control unit 11 that controls the transport mechanism 10.
[0012]
　The depositing and dispensing unit 5 in the banknote handling apparatus 1 serves as a depositing unit and a dispensing unit, but the depositing unit and the dispensing unit may be provided independently of each other. In the embodiment, the depositing and dispensing units are collectively referred to as the depositing and dispensing unit 5. The storage unit 7 is a winding drum type that winds and stores the bills 3 around the winding drum 7a. The banknotes 3 are classified into denominations and stored in the plurality of storage units 8. The bill handling apparatus 1 is not limited to a plurality of storage units 7 and storage units 8, and may be configured to include at least one storage unit 7 and storage unit 8. Further, the control unit 11 controls the deposit and withdrawal unit 5, the discrimination unit 6, the holding unit 7, and the storage unit 8.
[0013]
　For convenience of explanation, in FIG. 1 and thereafter, as an example of the arrangement of the bill handling apparatus 1, the depth direction of the bill handling apparatus 1 is taken as the X direction, and the width direction of the bill handling apparatus 1 (direction orthogonal to the paper of FIG. 1) is Y. Let the direction be the height direction of the bill handling apparatus 1 be the Z direction. In the banknote handling apparatus 1, the X, Y, and Z directions are not limited.
[0014]
　The banknote 3 also includes, for example, a banknote formed of a resin material such as a polymer. Moreover, about the banknote handling apparatus 1 which concerns on this invention, although it demonstrates using a banknote 3 as an example of paper sheets, for example in a present Example, it is not limited to the banknote 3. FIG. Paper sheets include, for example, checks, cash vouchers, securities, vouchers, and other media having monetary value in addition to banknotes 3.
[0015]
　(Composition of a bill delivery device) As
　shown in FIG. 1, the deposit / withdrawal unit 5 is provided with a bill delivery device 12 for delivering the bill 3 deposited to the deposit / withdrawal unit 5 to the bidirectional conveyance path 9. . The bill feeding device 12 is connected to the control unit 11 and is controlled by the control unit 11.
[0016]
　FIG. 2: is a schematic diagram which shows the banknote delivery apparatus 12 which the banknote handling apparatus 1 of an Example has. FIG. 3 is a plan view showing the bill feeding device 12 of the embodiment. FIG. 4 is a side view showing the bill feeding device 12 of the embodiment. FIG. 5 is a rear view showing the bill feeding device 12 of the embodiment from the side opposite to the insertion portion side.
[0017]
　As shown in FIG. 2, the bill feeding device 12 according to the embodiment includes an insertion portion 15 into which the bills 3 are put, a plurality of pick rollers 16 as a feeding roller to feed the bills 3 put into the insertion portion 15, and a feeding roller. Feed rollers 17, a plurality of separation rollers 18 that rotate together with the feed rollers 17 to separate the banknotes one by one, and a plurality of transport rollers 19 that rotate along with the feed rollers 17 to convey the banknotes 3; Equipped with
[0018]
　Further, as shown in FIG. 2, the bill feeding device 12 includes a rotating shaft 16a supporting the pick roller 16, a rotating shaft 17a supporting the feed roller 17, a rotating shaft 18a supporting the separation roller 18, and a conveying roller. And 19 a rotating shaft 19a. The plurality of pick rollers 16, the feed roller 17, the separation roller 18, and the conveyance roller 19 are disposed at predetermined intervals in the axial direction of the respective rotation shafts 16a, 17a, 18a, 19a. The respective rotation shafts 16a, 17a, 18a, 19a are arranged in parallel to one another and supported by a frame (not shown). Each of the rotation shafts 16a, 17a, 18a, 19a is driven by a drive mechanism 34 described later to rotate the pick roller 16, the feed roller 17, the separation roller 18, and the transport roller 19, respectively.
[0019]
　For example, the long side of the rectangular bill 3 is oriented along the rotation shaft 16 a of the pick roller 16, and the short side is oriented along the direction in which the pick roller 16 is fed out. In other words, in the insertion portion 15, the thickness direction of the bill 3 is along the X direction, the long side direction of the bill 3 is along the Y direction, and the short side direction of the bill 3 is along the Z direction It is put in. Further, the bills 3 are put into the insertion portion 15 in a state in which the bills 3 are aligned in the same direction.
[0020]
　As shown in FIG. 2, the insertion unit 15 has a moving mechanism 22 that moves the banknotes 3 put in the insertion unit 15 at the time of deposit into the X direction toward the pick roller 16 side. The moving mechanism 22 is provided with a bottom plate 23 on which the bills 3 are placed with the long side direction facing downward, a top plate 24 that covers the insertion portion 15 so as to be able to open and close, and a stage provided so as to reciprocate along the bottom plate 23 25 and a guide plate 26 for guiding the bill 3 moved by the stage 25 to between the feed roller 17 and the separating roller 18.
[0021]
　The moving mechanism 22 moves the stage 25 in the X direction to press the bill 3 toward the pick roller 16 with a predetermined pressing force, and the bill is properly fed out by the outer peripheral surface of the pick roller 16. Further, the moving mechanism 22 is controlled by the control unit 11 to return the stage 25 to an initial position separated from the pick roller 16 side in the X direction after all the bills 3 fed into the feeding unit 15 are fed out. Moreover, the insertion part 15 is comprised so that the banknote 3 dispensed from the storage part 8 of the banknote handling apparatus 1 at the time of payment may also be accommodated.
[0022]
　(Structure of Detection Member and First Detection Unit) Further
　, as shown in FIGS. 3, 4 and 5, the bill feeding device 12 rotates the pick roller 16 by contact with the binding member 20 for binding the bills 3. A detection member 30 rotated around an axis 16 a and a plurality of first detection portions 31 for detecting the rotation of the detection member 30 are provided.
[0023]
　As shown in FIGS. 3 and 5, the detection member 30 is disposed on both end side detection members 30-1 and 30-2 disposed at both ends in the direction of the rotation shaft 16a and at the center side in the direction of the rotation shaft 16a. And a central side detection member 30-3. The first detection unit 31 detects the rotation of the both end detection members 30-1 and 30-2, and rotates the first end detection units 31-1 and 31-2, and the rotation of the center detection member 30-3. And a first center-side detection unit 31-3 that detects the Hereinafter, for convenience of explanation, the description common to the both end side detection members 30-1 and 30-2 and the center side detection member 30-3 will be described as the detection member 30. Similarly, the description common to the first both end side detection units 31-1 and 31-2 and the first center side detection unit 31-3 will be described as the first detection unit 31.
[0024]
　As shown in FIGS. 3 and 5, the both end side detection members 30-1 and 30-2 are disposed on both ends of the rotation shaft 16a in the axial direction of the rotation shaft 16a than the positions of the pick rollers 16. The center side detection member 30-3 is disposed between two pick rollers 16 spaced in the axial direction of the rotation shaft 16a.
[0025]
　The detection member 30 (30-1, 30-2, 30-3) is formed substantially in a semi-cylindrical shape, for example, by a resin material and a metal material, and as shown in FIG. 3, FIG. 4 and FIG. It has a rotary portion 30a rotatably supported by the rotary shaft 16a around the 16 rotary shafts 16a, and a light shielding portion 30b for shielding the detection light of the first detection portion 31.
[0026]
　The rotating portion 30a of the detection member 30 is rotatably provided on the rotation shaft 16a via, for example, a bearing member (not shown). The rotary unit 30a may be provided with an urging member (not shown) for urging the rotary unit 16a to have a predetermined posture around the rotation shaft 16a, and by the binding member 20, the rotary unit 30a is an urging force of the urging member. May be configured to be rotated against. The light shielding portion 30b of the detection member 30 is formed in a plate shape having a thickness in the direction of the rotation shaft 16a, and extends in the radial direction of the rotation shaft 16a from the outer peripheral surface of the rotation portion 30a.
[0027]
　The outer circumferential surface of the rotating portion 30a of the detection member 30 functions as a contact surface C with which the binding member 20 is in contact. As shown in FIGS. 3 and 4, the contact surface C is formed along the outer peripheral surface D of the pick roller 16 in the radial direction of the rotation shaft 16 a (pick roller 16). Further, in the radial direction of the rotation shaft 16 a, the contact surface C is positioned on the center side of the rotation shaft 16 a by a predetermined distance R from the outer peripheral surface D of the pick roller 16. In other words, the contact surface C of the rotating portion 30 a is formed smaller in diameter than the pick roller 16 so as to form a predetermined amount of step with the outer peripheral surface D of the pick roller 16 in the radial direction of the pick roller 16 .
[0028]
　The contact surface C in the present embodiment has the above-mentioned predetermined distance R set to, for example, about 1 mm, and corresponds to the thickness of the binding member 20 to be detected (for example, the thickness of a rubber band or the like in the thickness direction of the bundled bills 3) Set based on. Further, in order to enhance the operability at the time of contact with the binding member 20, the contact surface C may be roughened, for example, with fine irregularities, on the contact surface C. It may be provided on the contact surface C.
[0029]
　In the rotation portion 30 a of the detection member 30, the width of the contact surface C in the direction of the rotation shaft 16 a is a detection range in which the binding member 20 can be detected in the long side direction of the banknote 3. However, since the rotational resistance of the detection member 30 may increase by increasing the width of the contact surface C, the reliability of the rotation operation of the detection member 30 and the size of the detection range are properly considered in consideration of each other. It is done.
[0030]
　As shown in FIG. 4, when the detection member 30 rotates around the rotation shaft 16 a on the rotation locus of the light shield portion 30 b of the detection member 30 rotating around the rotation shaft 16 a, as shown in FIG. 30 b is disposed at a predetermined position where it enters and is connected to the control unit 11. For example, an optical sensor is used as the first detection unit 31, and as shown in FIGS. 3 and 5, a light emission unit 31a that emits detection light and a light reception unit that receives the detection light emitted by the light emission unit 31a. And 31b. The light emitting portion 31a and the light receiving portion 31b are disposed to face each other with a gap through which the light shielding portion 30b of the detection member 30 rotating around the rotation shaft 16a can pass.
[0031]
　When the detection member 30 is rotated in the direction A shown in FIG. 4, the first light detection portion 31 causes the light shielding portion 30 b of the detection member 30 to enter between the light emission portion 31 a and the light reception portion 31 b to block detection light. Thus, the rotation of the detection member 30 is detected. Contrary to this detection, when the detection member 30 is rotated, the first detection unit 31 causes the light shield 30b of the detection member 30 to come out between the light emission unit 31a and the light reception unit 31b, and the detection light is inclined. The rotation of the detection member 30 may be detected by canceling the row state. In addition, the 1st detection part 31 is not limited to an optical sensor, The mechanical sensor which detects rotation of the detection member 30 may be used.
[0032]
　The binding member 20 that bundles the banknotes 3 includes, for example, various binding members 20 such as rubber bands, rubber bands, clips, and staples, but the detection members 30 (30-1, 30-2, 30-3) are to be detected. As the binding member 20, a binding member 20 such as a rubber band or a rubber band, which is formed in an annular shape or a band shape by an elastic material, is detected. The detection member 30 is not limited to one that detects the binding member 20 such as a rubber band or rubber band, and may be, for example, a rubber clip or a metal clip whose surface is roughened. In addition, compared to a metal clip or the like having a smooth surface, the binding member 20 having a high coefficient of friction on the surface can also be detected.
[0033]
　In addition, in the banknote feeding device 12 of the present embodiment, in order to detect the binding member 20 in the three detection ranges in the long side direction of the banknote 3, the three end side detection members 30-1 and 30-2 and the center side detection member Although it has 30-3, it does not limit to this structure. The bill feeding device 12 may be configured to have only the center side detection member 30-3 or only the both end side detection members 30-1 and 30-2. Further, in the bill feeding device 12, for example, four or more detection members 30 may be arranged at equal intervals in the direction of the rotation shaft 16a, and the detection accuracy of the binding member 20 is enhanced.
[0034]
　(Structure of Second Detection Unit) Further
　, as shown in FIG. 4 and FIG. 5, the bill feeding device 12 detects a skew of the bill 3 with respect to the feeding direction of the bill 3 by the pick roller 16. And a drive mechanism 34 for driving the feed roller 17 and the like.
[0035]
　The second detection units 32-1 and 32-2 are disposed downstream of the feed roller 17 in the direction in which the bill 3 is fed by the pick roller 16. For example, an optical sensor is used for the second detection units 32-1 and 32-2, and as shown in FIGS. 2 and 4, the light emission unit 32a that emits detection light and the detection light emitted by the light emission unit 32a And a light receiving unit 32 b that receives light. The light emitting unit 32 a and the light receiving unit 32 b are disposed to face each other with a space through which the bills 3 sent by the feed roller 17 and the conveyance roller 19 can pass.
[0036]
　The second detection units 32-1 and 32-2 function as position sensors that detect the passage of the bills 3 sent by the feed roller 17 and the conveyance roller 19, and are sent by the feed roller 17 and the conveyance roller 19. It also functions as a skew sensor that detects skew of the banknotes 3. The pair of second detection units 32-1 and 32-2 are disposed at a predetermined interval with respect to the direction of the rotation shaft 17a of the feed roller 17 (direction of the rotation shaft 19a of the transport roller 19). A predetermined interval is set based on the length of the long side of 3.
[0037]
　In the second detection units 32-1 and 32-2, for example, the binding member 20 such as a clip or a staple is not detected by the first detection unit 31 (31-1, 31-2, 31-3) described above. When the banknotes 3 bundled by such a binding member 20 are fed out by the pick roller 16, the banknotes 3 bundled by the binding member 20 are detected. For example, in the plurality of banknotes 3 in which one end of the outer periphery of the banknote 3 is bound and bound by the binding member 20 such as a clip or staple, one of the plurality of banknotes 3 is detached from the binding member 20. And the separating roller 18 may separate and send one sheet. In such a case, due to the influence of the binding force of the binding member 20, the bill 3 is not fed straight in the feeding direction, and the feed roller 17 and the conveying roller are in a state where the bill 3 is skewed in the feeding direction. 19 will be sent. Further, when a plurality of bills 3 bundled by the binding member 20 such as clips and staples are sent by the feed roller 17, the presence of the binding member 20 having a friction coefficient different from that of the banknote 3 and the binding by the binding member 20 Due to the influence of the position of the center of gravity of the plurality of bills 3 as a whole being offset to one end side in the long side direction, the bills 3 are easily fed in a state of being skewed with respect to the feeding direction.
[0038]
　In this manner, when the bill 3 is sent obliquely, the presence or absence of the bill is skewed based on the time difference between the timings when the bill 3 is detected by the pair of second detection units 32-1 and 32-2. Is determined. When the time difference exceeds the threshold value, the control unit 11 determines that the bill 3 is skewed.
[0039]
　As described above, the second detection units 32-1 and 32-2 detect the skew of the bills 3 generated when the bills 3 bundled by the binding member 20 are sent, and as a result, the bundling members 20 are produced. It is possible to detect the presence or absence of The second detection units 32-1 and 32-2 pass, as the binding member 20, the banknote 3 bundled by the rubber band, the metal clip other than the rubber band and the staples not detected by the first detection unit 31. To detect
[0040]
　The drive mechanism 34 is controlled by the control unit 11 described above. As shown in FIGS. 4 and 5, the drive mechanism 34 has a single pulse motor (stepping motor) 35 as a drive source, and the pulse motor 35 picks up the pick roller 16, the feed roller 17, the separation roller 18 and The transport rollers 19 are driven respectively. Thereby, the drive mechanism 34 drives the pick roller 16 and the like using the single pulse motor 35, thereby driving the normal rotation to feed the bills 3 in the delivery direction according to the control signal from the control unit 11. It is possible to quickly switch from the state to the stop and from the stop to the reverse drive state, and the configuration of the drive mechanism 34 is simplified.
[0041]
　Further, as shown in FIGS. 4 and 5, the drive mechanism 34 includes a pulley 37 provided on the rotation shaft 16a of the pick roller 16, a pulley 38 provided on the rotation shaft 17a of the feed roller 17, and these pulleys A drive belt 39 stretched between 37 and 38; The drive mechanism 34 rotates the pick roller 16 and the feed roller 17 in conjunction with each other via the drive belt 39.
[0042]
　(Detection operation of the binding member by the first detection unit)
　First, in the banknote feeding device 12, when the banknote 3 not bound by the binding member 20 is put into the insertion portion 15, the banknote 3 by the stage 25 of the moving mechanism 22. Is brought into pressure contact with the pick roller 16 side, the bill 3 comes in contact with the outer peripheral surface of the pick roller 16, and the bill 3 is fed out by the pick roller 16. In this case, the contact surface C of the detection member 30 is located closer to the rotation shaft 16 a than the outer peripheral surface of the pick roller 16 in the radial direction of the pick roller 16 and is recessed. For this reason, the banknote 3 pressed by the pick roller 16 does not contact the contact surface C, and the detection member 30 is not rotated by the banknote 3. Therefore, when the banknotes 3 are fed out, the detection member 30 does not rotate, so the binding member 20 is not detected by the first detection unit 31.
[0043]
　On the other hand, in the bill feeding device 12, even when the bill 3 bundled by the binding member 20 such as a rubber band is put into the insertion portion 15, the bill 3 is pressed against the pick roller 16 by the stage 25 of the moving mechanism 22. Ru. In this case, as shown in FIG. 4, the binding member 20 is in contact with the outer peripheral surface of the pick roller 16 and protrudes in the thickness direction (X direction) of the banknotes 3 bundled by the binding member 20. It contacts the contact surface C of the detection member 30. As the bills 3 bundled by the binding member 20 are fed by the pick roller 16, the binding member 20 moves together with the bills 3. At this time, when the binding member 20 moves together with the bill 3, the detection member 30 is rotated in the A direction around the rotation shaft 16a by the frictional force of the binding member 20 pressed to the contact surface C. As the detection member 30 rotates, the light shielding portion 30 b blocks the detection light of the first detection portion 31, and the first detection portion 31 detects the rotation of the detection member 30.
[0044]
　Generally, since a binding member 20 such as a rubber band for bundling a plurality of bills 3 is often attached at the center in the long side direction of the bill 3, the binding member such as a rubber band is mainly used by the center side detection member 30-3. 20 is detected. Further, even when the binding member 20 is attached to one end side in the long side direction of the bill 3, the binding member 20 such as a rubber band is detected by either of the both end side detection members 30-1 and 30-2. Ru.
[0045]
　(Control Operation of Drive Mechanism Based on Detection Result of First Detection Unit)
　FIG. 6 is a flowchart for explaining the control operation of the drive mechanism 34 when the first detection unit 31 detects the binding member 20. . As described above, in the bill feeding device 12, as shown in FIG. 6, the pick roller 16 picks out the bill 3 placed in the insertion unit 15 (step S 1), and the control unit 11 detects the first detection unit 31. Based on the result, the presence or absence of the rotation of the detection member 30 is determined (step S2). When the control unit 11 does not detect the rotation of the detection member 30 (No in step S2), the pick roller 16 continues the feeding operation of the banknotes 3.
[0046]
　On the other hand, when the rotation of the detection member 30 is detected by the first detection unit 31 (Yes in step S2), the control unit 11 stops the feeding operation of the banknote 3 by the drive mechanism 34 (step S3), The pick roller 16 is reversely rotated by the drive mechanism 34 (step S4). Finally, the stage 25 is returned to the initial position by the moving mechanism 22 so that the banknotes 3 bundled by the binding member 20 are moved away from the pick roller 16 (step S5), and the banknotes 3 bundled by the binding member 20 Return to the user. At this time, the control unit 11 may perform control to notify the user of removal of the binding member 20 by a display unit, a warning lamp, or the like (not shown).
[0047]
　(Detection Operation of Binding Member by Second Detection Unit) In the
　bill feeding device 12, such a binding member 20 is not detected by the first detection unit 31 as the binding member 20 such as a clip or a staple obtained by bundling the banknotes 3 is detected. The banknotes 3 bundled at 20 may be fed out by the pick roller 16 and may be fed by the feed roller 17 and the conveyance roller 19. In this case, since the banknotes 3 bundled by clips, staples and the like are easily skewed with respect to the feeding direction as described above, the pair of second detection units 32-1 and 32-2 causes the banknotes 3 to be skewed. The control unit 11 determines the presence or absence of the binding member 20 by detecting the presence or absence of the line. That is, when it is determined that the banknote 3 is skewed based on the detection results of the second detection units 32-1 and 32-2, the control unit 11 determines that the binding member 20 is present. Further, the control unit 11 determines that the binding member 20 does not exist if it is not determined that the banknote 3 is skewed based on the detection results of the second detection units 32-1 and 32-2.
[0048]
　(Control Operation of Drive Mechanism Based on Detection Result of Second Detection Unit)
　FIG. 7 shows that the second detection units 32-1 and 32-2 detect the skew of the banknote 3 in the bill feeding device 12 of the embodiment. 4 is a flowchart for explaining the control operation of the drive mechanism 34 when it has occurred. As described above, in the bill feeding device 12, as shown in FIG. 7, the bill 3 sent from the pick roller 16 side is fed by the feed roller 17 and the conveyance roller 19 (step S11), and the control unit 11 Based on the detection results of the detection units 32-1 and 32-2, it is determined whether or not the bill 3 is skewed (step S12). When it is not determined that the bill 3 is skewed (No in step S12), the control unit 11 continues the feeding operation of the bill 3 by the feed roller 17 and the conveyance roller 19.
[0049]
　On the other hand, when the control unit 11 determines that the bill 3 is skewed based on the detection results of the second detection units 32-1 and 32-2 (Yes in step 12), the bill 3 of the drive mechanism 34 The feeding operation is stopped (step S13), and the feed roller 17, the conveyance roller 19, the separation roller 18, and the pick roller 16 are reversely rotated by the drive mechanism 34 (step S14). Thereby, the banknote 3 and the binding member 20 are returned to the insertion portion 15 side. Finally, the stage 25 is returned to the initial position by the moving mechanism 22 so that the banknotes 3 bundled by the binding member 20 are moved away from the pick roller 16 (step S15), and the banknotes 3 bundled by the binding member 20 Return to the user. At this time, in the same manner as described above, the control unit 11 may perform control to notify the user of removal of the binding member 20 using a display unit, a warning light, or the like.
[0050]
　(Foreign body detection method) A foreign matter detection method
　according to an embodiment in which the binding member 20 is detected using the bill feeding device 12 configured as described above will be described. According to the foreign matter detection method of the embodiment, the detection member 30 is fed out of the insertion portion 15 by the pick roller 16 from the bill 3 stored in the insertion portion 15, and the detection member 30 supported rotatably around the rotation shaft 16a of the pick roller 16 is The first detection unit 31 detects that the banknotes 3 are rotated by the binding member 20 that bundles the banknotes 3.
[0051]
　As described above, the bill feeding device 12 of the embodiment is a detection member 30 rotatably supported by the rotation shaft 16 a with respect to the rotation shaft 16 a that rotates the pick roller 16 and rotated around the rotation shaft 16 a by the binding member 20. And a first detection unit 31 that detects the rotation of the detection member 30. Thereby, it becomes possible for bill delivery device 12 to detect binding members 20, such as a rubber band which bundled bill 3, for example, and a rubber band. Therefore, according to the bill feeding device 12, an increase in the manufacturing cost of the bill feeding device 12 is caused by adding a constitution in which metal detection is performed using a magnetic sensor, and a constitution in which the binding member 20 is subjected to image analysis using a camera. The configuration for detecting the binding member 20 can be realized relatively inexpensively.
[0052]
　Further, the detecting member 30 of the bill feeding device 12 of the embodiment has a contact surface C which is formed along the outer peripheral surface D of the pick roller 16 in the radial direction of the rotating shaft 16a of the pick roller 16 and contacts the binding member 20. The contact surface C is positioned closer to the rotation shaft 16 a than the outer peripheral surface D of the pick roller 16 by a predetermined distance R. As a result, it is possible to properly detect the binding member 20 without rotating the detection member 30 by the banknotes 3 that are not bound by the binding member 20. Therefore, the operation reliability of the detection member 30 and the detection accuracy of the binding member 20 can be enhanced.
[0053]
　Further, the detection member 30 of the bill feeding device 12 of the embodiment is disposed to face the center of the side along the rotation shaft 16 a of the bill 3 fed out from the insertion portion 15. Thereby, the binding member 20 attached at the center of the long side of the banknote 3 can be properly detected by the detection member 30, for example. In general, the binding member 20 such as a rubber band is often attached to the center of the long side of the banknote 3, and the reliability of the detection operation of such a binding member 20 is enhanced.
[0054]
　Further, the detection members 30 of the bill feeding device 12 of the embodiment are disposed to face both end sides of the sides along the rotation shaft 16 a of the bills 3 fed out from the insertion portion 15. Accordingly, the binding member 20 attached to one of the two end sides of the long side of the banknote 3 can be properly detected by the detection member 30, for example. Therefore, for example, detection accuracy of the binding member 20 such as a clip attached to one end side of the long side of the bill 3 can be enhanced.
[0055]
　Further, the bill feeding device 12 according to the embodiment includes a second detection unit 32 which is disposed downstream of the feed roller 17 in the feeding direction of the bills 3 and detects the skew of the bills 3 in the feeding direction. Thereby, it is possible to detect the presence or absence of such a bundling member 20 based on the skew of the banknotes 3 bundled by the bundling member 20 such as a clip and a staple which has not been detected by the first detection unit 31. Become. Therefore, the detection accuracy of the binding member 20 can be further enhanced.
[0056]
　Further, the control unit 11 of the bill feeding device 12 of the embodiment controls the feed roller 17 so as to reverse the feed roller 17 when the second detection unit 32 detects the skew of the bill 3. By this, it becomes possible to return the banknote 3 bundled by the binding member 20 to the insertion part 15 side.
[0057]
　Further, the drive mechanism 34 of the bill delivery device 12 of the embodiment drives the pick roller 16, the feed roller 17, and the separation roller 18 by a single pulse motor 35. As described above, driving the pick roller 16, the feed roller 17, and the separation roller 18 by one pulse motor 35 simplifies the drive mechanism 34, quickly reverses the pulse motor 35, and bundles the sheet by the binding member 20. It is possible to shift to an operation of returning the bill 3 to the user.
[0058]
　In addition, the control unit 11 of the bill feeding device 12 according to the embodiment moves the moving mechanism 22 so as to move the bill 3 away from the pick roller 16 after the second detection unit 32 detects the skew of the bill 3. Control. Thereby, the bill 3 can be returned to the user by the moving mechanism 22.
Explanation of sign
[0059]
　　DESCRIPTION OF SYMBOLS 　　　1 banknote handling apparatus
　　　3 banknote
　　11 control part
　　12 banknote delivery apparatus
　　15 input part
　　16 pick roller (feed-out roller)
　　16a rotating shaft
　　17 feed roller (feed roller)
　　18 separation roller
　　20 binding member
　　22 moving mechanism
30 (30-1, 30 -2, 30-3) Detection member
　　31 (31-1, 31-2, 31-3) first detection unit 32-1, 32-2
　　second detection unit
　　34 drive mechanism
　　35 pulse motor
　　C contact surface
　　D Outer peripheral surface
　　R predetermined distance
The scope of the claims
[Claim 1]
　A
　loading unit for loading paper sheets, a delivery roller for delivering the paper sheets placed in the loading unit,
　a rotation shaft for rotating the delivery roller,
　and support on the rotation shaft rotatably around the rotation shaft A sheet 　feeding apparatus
　comprising: a detection member rotated by a binding member obtained by bundling
paper sheets; and a first detection unit detecting rotation of the detection member .
[Claim 2]
　The detection member has a contact surface formed along the outer peripheral surface of the delivery roller in the radial direction of the rotation shaft and in contact with the binding member, and the contact surface is closer than the outer peripheral surface of the delivery roller.
The sheet feeding device according to claim 1, wherein the sheet feeding device is located on the rotary shaft side by a predetermined distance .
[Claim 3]

The sheet feeding device according to claim 1, 　wherein the detection member is disposed to face the center of the side along the rotation axis of the sheet fed out from the insertion portion .
[Claim 4]
　2.
The sheet feeding device according to claim 1, wherein the detection member is disposed to face both ends of a side along the rotation axis of the sheet fed out from the insertion portion .
[Claim 5]
　In 　the feeding direction of the
　sheets , a feeding roller for feeding the sheets fed from the input section by the feeding roller, a separation roller which rotates with the feeding roller to separate the sheets one by one
, and 2.
The sheet feeding device according to claim 1 , further comprising: a second detection unit disposed downstream of the feeding roller and configured to detect skew of the sheet in the feeding direction .
[Claim 6]
　The apparatus further comprises a drive mechanism for driving the feeding roller, and
　a control unit for controlling the drive mechanism,
　wherein the control unit is configured to detect the skew of the sheet by the second detection unit. The sheet
feeding device according to claim 5, wherein the feeding roller is controlled to be reversely rotated.
[Claim 7]

7. The sheet feeding apparatus according to claim 6, 　wherein the drive mechanism has a single pulse motor, and drives the feed roller, the feed roller, and the separation roller by the pulse motor .
[Claim 8]
　The input unit has a moving mechanism for moving a sheet toward the delivery roller side, and the
　control unit is configured to detect a skew of the sheet after the second detection unit detects the sheet.
7. The sheet feeding device according to claim 6, wherein the moving mechanism is controlled to move a sheet in a direction away from the feeding roller .
[Claim 9]
　A sheet inserted into the input section is fed out from the input section by a delivery roller, and a detection member rotatably supported around the rotation axis of the delivery roller is rotated by a binding member that bundles the sheets. Foreign object detection method that detects the