JP6536196B2 - Thickness detection device and medium transaction device - Google Patents

Description

  The present invention relates to a thickness detection device and a medium transaction device, and is suitably applied to, for example, an automated teller machine (ATM: Automated Teller Machine) that inserts a medium such as a bill and performs a desired transaction.

  2. Description of the Related Art Conventionally, in an automated teller machine or the like used in a financial institution, a store, or the like, for example, a customer is made to deposit cash such as banknotes and coins, and the customer pays out cash. As an automatic cash transaction apparatus, for example, a deposit / withdrawal unit for exchanging bills with a customer, a discrimination unit that discriminates the denomination and authenticity of inserted bills and identifies the serial number of the bills are inserted. Some temporary holding units for temporarily holding banknotes, a conveyance unit for conveying banknotes, and a banknote storage for storing banknotes for each denomination.

  As a discrimination unit, in a thickness detection unit that detects the thickness of a bill, the thickness of the thickness detection unit is removed by removing foreign matter such as paper dust attached from the surface of the bill to the roller in the thickness detection unit. Some maintain detection performance (see, for example, Patent Literature 1 and Patent Literature 2).

JP, 2010-176491, A JP, 2010-146421, A

  In such a discrimination unit, it is desirable to simplify the configuration of the thickness detection unit while maintaining the ability to remove foreign matter from the roller.

  The present invention has been made in consideration of the above points, and an object thereof is to propose a thickness detection device and a medium transaction device which can simplify the configuration.

  In order to solve such problems, in the thickness detection device of the present invention, a reference roller capable of rotating in a reference roller taking-in direction for taking the medium into the medium trading device and a reference roller for discharging the medium out of the medium trading device And a reference roller provided in a position opposite to the reference roller, rotatable in a detection roller loading direction for taking in the medium into the medium trading device and a detection roller for discharging the medium out of the medium trading device, and the medium between the reference roller and The detection roller that holds the sheet, the displacement detection unit that detects the displacement of the detection roller, and the foreign material removal rate is higher for the reference roller loading direction and the detection roller loading direction than for the reference roller discharge direction and detection roller discharge direction Thus, the reference roller and the foreign matter removing member in contact with the surface of the detection roller are provided.

  In the medium transaction apparatus of the present invention, the customer handling unit for receiving the medium transaction, the reference roller loading direction for taking the medium into the medium trading apparatus, and the reference roller discharge direction for discharging the medium out of the medium trading apparatus can be rotated. A reference roller, provided at a position facing the reference roller, rotatable in a detection roller taking-in direction for taking in the medium into the medium trading device, and a detection roller for discharging the medium out of the medium trading device; Between the detection roller that sandwiches the medium between the two, the displacement detection unit that detects the displacement of the detection roller, and the reference roller loading direction and detection roller loading direction than the reference roller discharge direction and detection roller discharge direction In order to increase the removal rate, the reference roller and the foreign matter removal member in contact with the surface of the detection roller are provided.

  In the present invention, the foreign matter removing member can be configured simply while maintaining the foreign matter removing performance of removing the foreign matter from the reference roller and the detection roller.

  According to the present invention, the foreign matter removing member can be simply configured while maintaining the foreign matter removing performance of removing the foreign matter from the reference roller and the detection roller. Thus, the present invention can realize a thickness detection device and a medium transaction device which can simplify the configuration.

It is a perspective view which shows the structure of a cash automatic transaction apparatus. It is a left side view showing the composition of a bill cash-receipt-and-disbursement machine. It is a left view which shows the structure of a discrimination part. It is a left side view showing composition (1) of a thickness primary detecting element by a 1st embodiment. It is a rear view which shows the structure (2) of the thickness detection part by 1st embodiment. It is a left side view showing a course of a foreign substance in a thickness detection part by a 1st embodiment. It is a left side view showing composition (1) of a thickness detection part by a 2nd embodiment. It is a rear view which shows the structure (2) of the thickness detection part by 2nd Embodiment. It is a left side view showing composition (1) of a thickness primary detecting element by a 3rd embodiment. It is a rear view which shows the structure (2) of the thickness detection part by 3rd Embodiment.

  Hereinafter, modes for carrying out the invention (hereinafter referred to as embodiments) will be described using the drawings.

[1. First embodiment]
[1-1. Configuration of Automated Teller Machine]
As shown in FIG. 1 and FIG. 2, the automated teller machine 1 is mainly configured of a box-like case 2 and is installed in, for example, a financial institution etc., and is used as a deposit transaction or withdrawal transaction with a customer. Conduct cash related transactions, etc. The housing 2 has a shape in which the portion where the customer can easily insert bills and operate with a touch panel while the customer faces the front side, that is, the portion extending from the top of the front to the top is cut off obliquely. The customer service unit 3 is provided in this part.

  The customer service unit 3 is provided with a card entrance 4, a cash slot 5, an operation display unit 6, a ten key 7 and a receipt issue port 8, and directly exchanges cash, passbook, etc. with the customer and makes transactions. Notification of information on and acceptance of operation instructions. The card entrance 4 is a portion into which various cards such as a cash card are inserted or ejected. On the back side of the card entrance 4 is provided a card processing unit (not shown) for reading an account number etc. magnetically recorded on various cards. The deposit / withdrawal port 5 is a portion into which a bill deposited by the customer is inserted and a bill dispensed to the customer is discharged. The operation display unit 6 is integrated with an LCD (Liquid Crystal Display) for displaying an operation screen at the time of transaction, and a touch panel for selecting the type of transaction, inputting a password, transaction amount and the like. The ten key 7 is a physical key that receives input of numbers such as “0” to “9”, and is used at the time of input operation such as a personal identification number or a transaction amount. The receipt issue port 8 is a part that issues a receipt on which the contents of the transaction and the like are printed at the end of the transaction process.

  In the housing 2, a main control unit 9 for controlling and controlling the entire automated teller machine 1 and a bill depositing / dispensing machine 10 for performing various processes regarding bills are provided. The main control unit 9 is mainly composed of a central processing unit (CPU) (not shown), and a predetermined program is stored in a storage unit such as a read only memory (ROM), a random access memory (RAM), a hard disk drive or a flash memory. Is read out and executed to control each part to perform various processes such as a deposit transaction and a withdrawal transaction.

  In the following, the side facing the user of the automated teller machine 1 is the front side, and the opposite is the rear side, and the left and the right are the left side and the right side, respectively, as viewed from the user facing the front side. The lower side is defined and explained.

[1-2. Internal configuration of the banknote deposit and withdrawal machine]
As shown in FIG. 2, the bill depositing / dispensing machine 10 is mainly configured of a box-like depositing / dispensing machine case 11, and the control unit 12 includes the respective units (dispensing / dispensing unit 16, discrimination unit 18, temporary storage unit 20 Supervises and controls the counterfeit note box 22, the transport unit 24, the bill box 26 and the reject box 28).

  The control unit 12 is mainly composed of a CPU (not shown), reads out and executes a predetermined program from the storage unit 14 composed of a ROM, a RAM, a hard disk drive, a flash memory, etc. And carry out various processing such as withdrawal transactions.

  Above the inside of the banknote depositing and dispensing machine 10, the deposit and withdrawal unit 16, a discrimination unit 18 for determining the denomination and authenticity of the banknote, a temporary storage unit 20 for temporarily retaining deposited banknotes and the like, and a forged banknote A counterfeit note box 22 or the like for storing a bill determined to be a counterfeit note) is provided.

  The deposit / withdrawal unit 16 is disposed on the upper front side in the deposit / withdrawal machine housing 11 and separates the banknotes input from the customer one by one and feeds it to the transport unit 24.

  The conveyance unit 24 conveys a rectangular banknote in the short direction along a conveyance path indicated by a solid line in the drawing by a roller, a belt, or the like (not shown). The transport unit 24 transports banknotes so that the discrimination unit 18 is inserted in the front-rear direction, and connects the rear side of the discrimination unit 18 and the temporary storage unit 20, the banknote storage 26, and the counterfeit banknote storage 22 respectively. . The transport unit 24 also connects the front side of the discrimination unit 18 to the deposit / withdrawal unit 16 and the reject storage 28. A selector (indicated by a triangle in the drawing) is provided at a branch point of the transport unit 24, and switches the transport destination of the banknote by rotating based on the control of the control unit 12.

  The discrimination unit 18 discriminates the denomination and authenticity of the bill and the degree of damage (correctness) using an optical element, a magnetic detection element, etc. while conveying the bill inside, and identifies the discrimination result The control unit 12 is notified. Further, the discrimination unit 18 reads and identifies a serial number from the image data of the captured bill, and notifies the control unit 12 of the identification result. In response to this, the control unit 12 determines the transport destination of the bill based on the acquired discrimination result and the discrimination result.

  The temporary storage unit 20 is disposed at a substantially central portion in the front-rear direction in the depositing and dispensing machine housing 11 and at a position adjacent to the top of the transport unit 24 and adopts a so-called tape escrow method. The banknote is stored by winding the banknote along with the tape on the circumferential side of the case, and the banknote is fed out by peeling the tape from the circumferential side.

  The counterfeit note box 22 is disposed at a position on the rear upper side in the cash dispenser housing 11 and adjacent to the top of the transport unit 24 and has a space for storing bills therein. When the banknote judged to be a fake note by the discrimination unit 18 and the control unit 12 is transported by the transport unit 24, the fake ticket storage 22 stores the banknote therein.

  Below the inside of the banknote depositing and dispensing machine 10, a reject storage 28 for storing banknotes that should not be reused, and five banknote storage containers 26 for storing reusable banknotes are provided.

  The reject storage 28 is disposed on the lower front side in the deposit / withdrawal machine housing 11, has a rectangular solid shape that is long in the vertical direction, and has a space for accumulating and storing bills therein. The reject storage 28 stores the banknotes therein when the banknotes determined by the discrimination unit 18 and the control unit 12 to be largely damaged are not to be reused by the transport unit 24.

  Behind the reject box 28 in the deposit / withdrawal unit case 11, five bill storage boxes 26 are provided in order from the front side to the rear side. Each of the bill storages 26 is configured in the same manner, and is formed in a rectangular shape that is long in the vertical direction, and has a space for accumulating and storing bills therein. In each bill storage 26, the denominations of bills to be stored are set in advance. The bill storage 26 is transported by the transport unit 24 according to the denomination according to the denomination, when the banknote judged to be reusable with a small degree of damage is discriminated by the discrimination unit 18 and the control unit 12. Banknotes are accumulated inside and stored. In addition, when the banknote storage 26 receives an instruction to feed the banknotes from the control unit 12, the banknote storage 26 separates the stacked banknotes one by one and delivers them, and delivers the banknotes to the transport unit 24.

  In this configuration, the automatic cash transaction apparatus 1 controls the respective units by the main control unit 9 and the control unit 12 based on the discrimination results and the discrimination results of the banknotes by the discrimination unit 18, and processes for depositing and dispensing banknotes, etc. I do.

  That is, at the time of a deposit transaction, when the deposit transaction is selected by the customer via the operation display unit 6 and the banknotes are inserted into the deposit / withdrawal unit 16, the automated teller machine 1 selects one inserted banknote from the deposit / withdrawal unit 16 The banknotes are conveyed to the discrimination unit 18 one by one, and the banknotes are conveyed from the front toward the rear in the discrimination unit 18 in the conveyance direction Di at the time of deposit shown in FIG. Here, the automated teller machine 1 transports the depositable banknotes determined to be depositable based on the discrimination result of the discrimination unit 18 and the discrimination result to the temporary storage unit 20 and temporarily stores them. On the other hand, the automated teller machine 1 returns to the deposit / withdrawal unit 16 the deposit reject banknote determined to be unsuitable for deposit, and returns it to the customer by opening the shutter. Thereafter, when the amount of money deposited is determined by the customer, the automated teller machine 1 selects one of the banknotes stored in the temporary storage unit 20 that is determined to be storable according to the denomination. Transport to 26 for storage. On the other hand, the automated teller machine 1 transports the banknote judged to be a fake note to the fake note storage 22. The automated teller machine 1 also transports the banknotes determined to be unsuitable for storage to the reject storage 28.

  On the other hand, at the time of withdrawal transaction, when the withdrawal transaction is selected by the customer via the operation display unit 6 and the withdrawal amount is inputted by the customer, the number of banknotes for each denomination necessary according to the requested amount At the time of withdrawal shown in FIG. 3 from the rear to the front of the inside of the discrimination unit 18 in accordance with the number of banknotes for each denomination. The banknote is transported in the transport direction Do, and the discrimination result and the identification result of the serial number are obtained. Here, the automated teller machine 1 transports to the deposit / withdrawal unit 16 the billable banknotes that are determined to be available for withdrawal based on the discrimination result of the discrimination unit 18 and the discrimination result. On the other hand, the automated teller machine 1 transports and stores the withdrawal / reject banknotes determined to be unsuitable for withdrawal to the reject storage 28. When bills corresponding to the required amount are accumulated in the deposit / withdrawal unit 16, the automated teller machine 1 opens the shutter. As a result, it becomes possible to receive the banknotes accumulated in the deposit / withdrawal unit 16, and the customer receives the banknotes. Thereafter, the automated teller machine 1 transports and stores the withdrawal / reject banknotes stored in the temporary storage unit 20 to the reject storage 28 for storage.

[1-3. Configuration of discrimination unit]
As shown in FIG. 3, the discrimination unit 18 controls the control unit 12 while traveling the bill forward or backward along the substantially horizontal conveyance path 32 in the rectangular parallelepiped shaped discrimination unit housing 30. Based on the above, the discrimination process of the bill is performed. In addition, FIG. 3 omits the left side plate etc. of the discrimination part housing | casing 30 for convenience of explanation, and represents each internal component typically.

  The conveyance path 32 includes an upper conveyance guide 34U and a lower conveyance guide 34D, drive rollers 38, 40 and 42, driven rollers 44, 46 and 48, a magnetic gap roller 54, a reference roller 56, and a thickness detection roller. And 58. The drive rollers 38, 40 and 42 and the magnetic gap roller 54 are made of rubber-based elastic members, and have high frictional force with respect to the bill. The driven rollers 44, 46 and 48 and the thickness detection roller 58 are made of metal, resin, rubber-based elastic member, or a combination thereof. The reference roller 56 is formed of a predetermined metal material. The upper conveyance guide 34U and the lower conveyance guide 34D respectively have a flat upper conveyance surface 34AU and a lower conveyance surface 34AD facing the paper surface of the bill BL, and the conveyance path of the bill between the conveyance faces of each other. It forms 32. Further, in the discrimination unit 18, modules, such as a magnetic detection unit 50, a bill image detection unit 53, and a thickness detection unit 60, are sequentially arranged so that the inside of the discrimination unit housing 30 is directed backward from the front side.

  Drive rollers 38, 40 and 42, a reference roller 56, and a magnetic gap roller 54 in the lower conveyance guide 34D as a reference roller side conveyance guide have a central axis in the left-right direction, that is, orthogonal to the conveyance direction of the bill BL. It is rotatably mounted to be oriented. The driving rollers 38, 40 and 42, the reference roller 56, and the magnetic gap roller 54 are provided on the lower side conveyance guide 34D through a hole formed in the lower side conveyance surface 34AD, and a part of the circumferential side thereof along the conveyance path 32. Exposed to the side. Further, the drive rollers 38, 40 and 42, the reference roller 56 and the magnetic gap roller 54 are actively rotated by the transmission of the drive force from an actuator (not shown).

  On the other hand, in the upper conveyance guide 34U as a detection roller side conveyance guide, driven rollers 38, 40 and 42 and a reference roller 56 are opposed to the driven rollers 44, 46 and 48 and a thickness detection roller 58 Is mounted rotatably in the left-right direction. Further, the driven rollers 44, 46 and 48 and the thickness detection roller 58 are configured such that a part of the circumferential side surface is exposed to the side of the conveyance path 32 from the hole formed in the upper conveyance surface 34AU with respect to the upper conveyance guide 34U. There is. The driven rollers 44, 46 and 48 and the thickness detection roller 58 are pressed against the drive rollers 38, 40 and 42 and the reference roller 56 respectively by compression springs (not shown). Therefore, when the bill BL is transported along the transport path 32, the driven rollers 44, 46 and 48 and the thickness detection roller 58 respectively drive the bill BL with the drive rollers 38, 40 and 42 and the reference roller 56. Press on The driving rollers 38, 40, and 42, the magnetic gap roller 54, and the reference roller 56 convey the banknote BL along the transport path 32 in the front-rear direction by transmitting the rotational force to the banknote BL.

  In the magnetic detection unit 50, the magnetic sensor 52 is disposed above the transport path 32. The magnetic gap roller 54 is disposed with a gap between its circumferential side surface and the detection surface of the magnetic sensor 52. The bill BL is printed using a magnetic ink which is locally magnetized. Therefore, the magnetic detection unit 50 detects the magnetism of the bill BL transported on the transport path 32 by the magnetic sensor 52, and sends out the detection result to the control unit 12. In response to this, the control unit 12 uses the magnetic detection result of the bill BL acquired from the magnetic sensor 52 to determine authenticity or denomination of the bill.

  A displacement sensor 59 is provided above the thickness detection roller 58 of the thickness detection unit 60. The displacement sensor 59 is, for example, an eddy current displacement sensor, detects the relative displacement of the thickness detection roller 58 based on the position where the thickness detection roller 58 abuts on the reference roller 56, The detection result is sent to the control unit 12 as a thickness detection value. The control unit 12 determines whether the displacement amount corresponds to one bill or a plurality of bills by comparing the detected thickness value with a reference value of the thickness stored in advance, and bends it. Judge the presence or absence of paste or foreign substance.

  With this configuration, when nothing is conveyed to the conveyance path 32, the thickness detection unit 60 causes the thickness detection roller 58 to abut on the reference roller 56 by the action of the compression spring. Thus, the thickness detection roller 58 receives rotational driving force from the reference roller 56, and rotates in accordance with the rotation of the reference roller 56. At this time, the thickness detection unit 60 detects that the thickness detection roller 58 is positioned at the reference height by the displacement sensor 59, and sends the detection result to the control unit 12. On the other hand, in the thickness detection unit 60, when the bill BL is conveyed to the conveyance path 32, the thickness of the bill BL is held in order to hold the bill BL between the thickness detection roller 58 and the reference roller 56. Accordingly, the thickness detection roller 58 is displaced upward. At this time, the thickness detection unit 60 detects the displacement amount of the thickness detection roller 58 by the displacement sensor 59, and sends the detection result to the control unit 12.

  The bill image detection unit 53 includes an upper reflective transmission sensor unit 53U located on the upper side and a lower reflective transmission sensor unit 53D located on the lower side. The bill image detection unit 53 optically detects the reflection pattern and the transmission pattern of the bill BL, and sends the detection result to the control unit 12. In response to this, the control unit 12 uses the reflection pattern and the transmission pattern of the bill BL acquired from the bill image detection unit 53 to determine the authenticity or denomination of the bill BL, or the degree (damage) of damage or the like. .

[1-4. Configuration of thickness detection unit]
As shown in FIGS. 4 to 6, the thickness detection unit 60 includes the reference roller 56, the reference roller shaft 56S, the thickness detection roller 58, the displacement sensor 59, the foreign matter removing unit 66 (foreign matter removing units 66U and 66D), and foreign matter The storage unit 68 and the guide unit 70 are provided.

  A plurality of reference rollers 56 are disposed along the axial direction of the reference roller shaft 56S with the reference roller shaft 56S directed in the left-right direction. A plurality of thickness detection rollers 58 are disposed along the axial direction of the central axis so as to abut on the circumferential side surface of each reference roller 56 with the central axis directed in the left-right direction.

  The reference roller 56 exposes a part of the circumferential side surface thereof to the side of the conveyance path 32 from a reference roller hole portion 34DH which is bored in the lower conveyance surface 34AD with respect to the lower conveyance guide 34D. In the lower conveyance guide 34D, a reference roller rear hole 34DHb which is a space between the lower rear end 34DEb which is the rear end of the reference roller hole 34DH and the peripheral side surface of the reference roller 56, A reference roller front hole 34DHf, which is a space between the lower front end 34DEf, which is the front end of the roller hole 34DH, and the circumferential side surface of the reference roller 56, is formed. In the reference roller rear hole 34DHb and the reference roller front hole 34DHf, the rotating reference roller 56 does not contact the lower conveyance guide 34D, and the tip of the conveyed bill is not caught in the reference roller hole 34DH, and The foreign matter removed from the surface of the height detection roller 58 is formed to have a length in the front-rear direction such that it can pass from the conveyance path 32 to the lower side of the lower conveyance guide 34D.

  Here, the foreign matter refers to paper dust of the bill, fragments of the adhesive tape after repairing the torn portion of the bill, the adhesive of the adhesive tape, and the bill attached to the bill in the bill depositing / dispensing machine 10 It comes from sticky lubricant dust and rubber pieces.

  The thickness detection roller 58 exposes a part of its circumferential side surface to the conveyance path 32 side from a detection roller hole 34UH which is bored in the upper conveyance surface 34AU with respect to the upper conveyance guide 34U. The upper conveyance guide 34U includes a detection roller rear hole 34UHb, which is a space between the upper rear end 34UEb, which is the rear end of the detection roller hole 34UH, and the circumferential side surface of the thickness detection roller 58, An upper front end 34UEf which is a front end of the roller hole 34UH and a detection roller front hole 34UHf which is a space between a circumferential side surface of the thickness detection roller 58 are formed. In the detection roller back hole 34UHb and the detection roller front hole 34UHf, the rotating thickness detection roller 58 does not contact the upper conveyance guide 34U, and the tip of the conveyed bill is not caught by the detection roller hole 34UH, and The foreign matter removed from the surface of the thickness detection roller 58 is formed to have a length in the front-rear direction such that it can pass from the upper side of the upper conveyance guide 34U to the conveyance path 32.

[1-5. Configuration of Foreign Matter Removal Unit]
In the vicinity of the reference roller 56, there is provided a foreign matter removing portion 66D formed integrally with a plate spring 62D and a scraper 64D.

  The scraper 64D is a plate-like member which is formed of a resin material having a sliding property which is high in abrasion resistance and low in coefficient of friction, and has a predetermined thickness. The scraper 64D is disposed so that the rear end portion is inclined backward, and for each of the plurality of reference rollers 56, the front lower circumferential side which is lower than the rotation center of the reference rollers 56 The rear end abuts over the entire length from the left end to the right end in the direction. Hereinafter, the contact between the scraper 64D and the reference roller 56 is also referred to as a lower contact CD. The scraper 64D adheres to the surface of the reference roller 56 due to the edge rising when the reference roller 56 is rotated counterclockwise in the figure and in the deposit reference roller rotation direction RDi, which is the rotation direction at the time of deposit transaction. While scraping off and removing the foreign substances, when the reference roller 56 is rotated clockwise in the figure and rotates in the dispensing reference roller rotation direction RDo which is the rotation direction at the time of dispensing transaction, the edge does not stand up. The foreign matter adhering to the surface of the reference roller 56 is disposed at an angle which is not removed as much as at the time of the deposit transaction. In other words, scraper 64 D responds to the time of dispensing transaction so that the removal rate of foreign matter on the surface of reference roller 56 is higher in the receiving standard roller rotation direction RDi than in the dispensing time reference roller rotation direction RDo. It is arranged to correspond only at the time of deposit transaction without doing.

  The plate spring 62D is formed from the left end to the right end of the thickness detection unit 60 in the left-right direction, and the scraper 64D is integrated at the lower end, and the upper end is attached to the discrimination unit housing 30 ing. As described above, in the foreign matter removing unit 66D of the thickness detecting unit 60, all the scrapers 64D are connected by one plate spring 62D. The leaf spring 62D has a predetermined elastic force, and presses the scraper 64D against the reference roller 56 so that the rear end of the scraper 64D elastically abuts on the circumferential side surface of the reference roller 56.

  As described above, when the reference roller 56 rotates in the reference roller rotation direction RDi at the time of deposit, the foreign matter removing section 66D removes the foreign matter adhering to the surface of the reference roller 56 by the scraper 64D. At this time, the foreign matter removed from the surface of the reference roller 56 does not again contact the surface of the reference roller 56 and falls downward by gravity, as shown in FIG.

  In the vicinity of the thickness detection roller 58, there is provided a foreign matter removing portion 66U formed integrally with a plate spring 62U and a scraper 64U.

  The scraper 64U is formed of the same resin material as the scraper 64D, and is disposed such that the front end thereof is lowered forward, and for each of the plurality of thickness detection rollers 58, the rotation center of the thickness detection rollers 58 is The front end portion abuts on the lower rear side circumferential side surface over the entire length from the left end to the right end in the axial direction. Hereinafter, the contact point between the scraper 64U and the thickness detection roller 58 is also referred to as the upper contact CU. The upper contact CU is set substantially at the same longitudinal position as the front end of the upper rear end 34UEb or at the rear of the front end of the upper rear end 34UEb. The scraper 64U has an edge when the thickness detection roller 58 rotates clockwise in the figure and rotates in the direction of deposit detection roller rotation direction RUi, which is the rotation direction at the time of deposit transaction, so that the thickness detection roller 58 While the foreign matter adhering to the surface is removed, the edge is raised when the thickness detection roller 58 is rotated counterclockwise in the figure and rotates in the dispensing detection roller rotation direction RUo which is the rotation direction at the time of dispensing transaction. Due to the absence, the foreign matter adhering to the surface of the thickness detection roller 58 is disposed at an angle which is not removed as much as at the time of the deposit transaction. In other words, the scraper 64U has a higher removal rate of foreign matter on the surface of the thickness detection roller 58 in the payment detection roller rotation direction RUi than in the payment detection roller rotation direction RUo, in other words, the payment transaction Sometimes it does not correspond and it is arranged to correspond only at the time of deposit transaction.

  Similar to the plate spring 62D, the plate spring 62U is formed from the left end to the right end of the thickness detection unit 60 in the left-right direction, and the scraper 64U is integrated at the lower end. It is attached to the housing 30. As described above, in the foreign matter removing unit 66U of the thickness detecting unit 60, all the scrapers 64U are connected by one plate spring 62U. The leaf spring 62U has a predetermined elastic force, and presses the scraper 64U against the thickness detection roller 58 so that the front end of the scraper 64U elastically contacts the circumferential side surface of the thickness detection roller 58.

  As described above, when the thickness detection roller 58 rotates in the detection roller rotation direction RUi at the time of deposit, the foreign matter removing section 66U removes the foreign matter adhering to the surface of the thickness detection roller 58 by the scraper 64U. At this time, as shown in FIG. 6, the foreign matter removed from the surface of the thickness detection roller 58 does not contact the surface of the thickness detection roller 58 again and falls downward by gravity, so that the detection roller rear hole portion 34 UHb and reference roller rear hole 34 DHb are sequentially passed and deposited on the guide portion 70. At this time, the foreign matter removed from the surface of the thickness detection roller 58 by the scraper 64U moves to the inside of the conveyance path 32 and the upper side surface of the upper conveyance guide 34U in addition to the guide portion 70.

  Hereinafter, the foreign matter removing unit 66D and the foreign matter removing unit 66U are collectively referred to as the foreign matter removing unit 66, the scraper 64D and the scraper 64U are collectively referred to as the scraper 64, and the plate spring 62D and the plate spring 62U are collectively referred to as the plate spring 62. .

  Below the reference roller 56, a guide portion 70 in the form of a flat plate with a trailing edge is provided. The guide portion 70 is formed in the left-right direction extending from the rear to the front of the lower contact CD with respect to the upper contact CU. At the front end of the guide portion 70, a substantially flat box type foreign matter storage portion 68 which is a rectangular parallelepiped whose upper surface is open is fixed, and the guide portion 70 and the foreign matter storage portion 68 are integrated. The foreign matter deposited on the guide portion 70 gradually moves forward along the slope shape of the guide portion 70 and falls into the foreign matter storage portion 68. The foreign matter storage unit 68 and the guide unit 70 are configured to be easily removable from the discrimination unit 18, and are removed from the discrimination unit 18 by maintenance personnel, and the stored foreign matter is cleaned.

  Thus, the foreign matter removing unit 66 removes foreign matter adhering to the surfaces of the reference roller 56 and the thickness detection roller 58, whereby the thickness of the foreign matter is detected when the thickness detection unit 60 detects the thickness of the bill BL. To prevent it from affecting.

[1-6. Operation and effect]
In the above configuration, the discrimination unit 18 conveys the bill BL along the conveyance path 32 in the pay-in conveyance direction Di, which is the backward direction, or in the withdrawal conveyance direction Do, which is the forward direction, in the thickness detection unit 60. The bill image detection unit 53 detects the reflection pattern and the transmission pattern of the bill BL, and the magnetism detection unit 50 detects the magnetism of the bill BL.

  At the time of the deposit transaction, the discrimination unit 18 rotates the banknote transported from the upstream side of the transport direction Di at the time of deposit, which is a direction for taking in the banknote from the outside to the inside of the banknote depositing / dispensing machine 10, to the reference roller rotation direction RDi at the time of deposit. The paper is nipped by the reference roller 56 and the thickness detection roller 58 rotated in the receipt detection roller rotation direction RUi, and is conveyed downstream in the receipt conveyance direction Di while detecting the thickness of the bill. At this time, the thickness detection unit 60 continues the detection of the thickness of the bill until the rear end of the bill passes the reference roller 56 and the thickness detection roller 58, so that from one end to the other end of the conveyance direction of the bill. The thickness is detected over the entire length of the

  In this deposit transaction, the foreign matter removing unit 66U detects the thickness of the foreign matter attached to the thickness detection roller 58 and conveyed to the upper contact CU by the thickness detection roller 58 that rotates in the detection roller rotational direction RUi. The roller 58 is scraped off and removed. Further, the foreign matter removing unit 66D scrapes and removes from the reference roller 56 the foreign matter that has been attached to the reference roller 56 and has been transported to the lower contact CD by the reference roller 56 that rotates in the reference roller rotation direction RDi when depositing. .

  At this time, the foreign matter removed from the surface of the reference roller 56 does not contact the surface of the reference roller 56 again, falls downward by gravity and is deposited on the guide portion 70. Further, the foreign matter removed from the surface of the thickness detection roller 58 does not contact the surface of the thickness detection roller 58 again and falls by gravity downward and falls downward of the guide portion 70, the inside of the conveyance path 32, and the upper conveyance guide 34U. Move to the upper side. The foreign matter remaining in the transport path 32 is pushed out by the transported banknotes and diffused into the banknote depositing and dispensing machine 10.

  As described above, the discrimination unit 18 is provided with a path through which the foreign matter removed from the reference roller 56 and the thickness detection roller 58 reaches the inside of the foreign matter storage portion 68 and the conveyance path 32 by gravity. Therefore, the discrimination unit 18 can prevent the foreign matter scraped off from the reference roller 56 and the thickness detection roller 58 from staying on the sensing surface of the displacement sensor 59, the various mechanisms of the thickness detection unit 60, and the like. As a result, the behavior of the various rollers in the discrimination unit 18 changes with respect to the time of shipping, particularly when the discrimination unit 18 is operated for a long time, or the detection accuracy of the displacement sensor 59 is deteriorated due to deposited foreign matter. Can prevent thickness detection performance from becoming unstable.

  Further, the discrimination unit 18 causes the scraper 64D to abut below the central axis of the reference roller 56, and causes the scraper 64U to abut below the central axis of the thickness detection roller 58. Thus, the discrimination unit 18 can prevent foreign matter removed from the surfaces of the reference roller 56 and the thickness detection roller 58 from adhering again to the surface of the reference roller 56 and the thickness detection roller 58.

  On the other hand, at the time of withdrawal transaction, the discrimination unit 18 rotates the withdrawal reference roller when the banknote is conveyed from the upstream side of the withdrawal conveyance direction Do, which is a direction for discharging the banknote from the inside to the outside of the banknote depositing / dispensing machine 10 The paper is nipped by the reference roller 56 rotating in the direction RDo and the thickness detection roller 58 rotating in the dispensing detection roller rotation direction RUo, and is conveyed downstream of the dispensing transport direction Do while detecting the thickness of the bill. Do. At this time, the thickness detection unit 60 continues the detection of the thickness of the bill until the rear end of the bill passes the reference roller 56 and the thickness detection roller 58, so that from one end to the other end of the conveyance direction of the bill. The thickness is detected over the entire length of the

  Here, due to the relationship between the contact angle of scraper 64D with respect to reference roller 56 and the contact angle of scraper 64U with respect to thickness detection roller 58, reference roller 56 and thickness detection roller are compared at the time of payment transaction at the time of withdrawal transaction. Foreign matter adhering to 58 is hardly removed. However, also at the time of the withdrawal transaction, it is desirable to remove foreign matter on the reference roller 56 and the thickness detection roller 58 and to accurately detect the thickness of the banknote, as at the time of the deposit transaction.

  For this reason, the thickness detection unit 60 sets the reference roller 56 to the deposit reference roller rotation direction RDi and the thickness detection roller 58 to the deposit detection roller based on the control of the control unit 12 as a preliminary operation for performing a withdrawal transaction. A foreign matter removing operation is performed to idle for a fixed time in the rotational direction RUi. After the foreign matter adhering to the reference roller 56 and the thickness detection roller 58 is removed by the foreign matter removal operation, the thickness detection unit 60 respectively switches the thickness detection roller 58 in the reference roller rotation direction RDo during dispensing. By rotating in the dispensing time detection roller rotation direction RUo, the bill is conveyed in the dispensing time transport direction Do while detecting the thickness of the bill.

  Here, in general, foreign matters tend to be attached to the banknotes deposited from the outside at the time of the deposit transaction rather than the banknotes stored in the banknote storage 26 and dispensed at the time of the withdrawal transaction. Foreign matter is more likely to adhere to the reference roller 56 and the thickness detection roller 58 at the time of the deposit transaction than at the time of the withdrawal transaction. For this reason, the thickness detection unit 60 arranges the scraper 64 at an angle at which the edges stand with respect to the reference roller 56 and the thickness detection roller 58 at the time of deposit transaction. Thus, the bill depositing / dispensing machine 10 properly detects the thickness of the bill by continuing to remove the foreign matter from the reference roller 56 and the thickness detecting roller 58 during the deposit transaction during the deposit transaction. It is possible not to take in the banknotes to which the foreign matter is attached into the banknote storage 26, or to detect double feeding in which the banknotes are overlapped and transported. On the other hand, at the time of withdrawal transaction, the banknote depositing / dispensing machine 10 appropriately detects the thickness of the banknote within a range that causes no practical problems by performing the foreign matter removing operation before conducting the withdrawal transaction, and the foreign matter is attached It is possible not to withdraw bills and to detect double feeding.

  In addition, when foreign matter adheres to the reference roller 56 or the thickness detection roller 58 during the dispensing transaction, and when an abnormality of the thickness detection value having the same tendency is observed for a plurality of bills, the control unit 12 performs the dispensing transaction. Is temporarily stopped, and the thickness detection unit 60 is controlled to perform a foreign matter removing operation. Subsequently, the control unit 12 resumes the dispensing transaction, and determines whether or not foreign matter has been removed from the reference roller 56 or the thickness detection roller 58 based on the thickness detection value.

  Here, the thickness detection unit described in Japanese Patent Application Laid-Open No. 2010-176491 is configured such that two plate-like scrapers are brought into contact with each of the reference roller and the thickness detection roller to thereby contact the reference roller and the thickness detection roller. Whether the thickness detection roller rotates clockwise or counterclockwise, foreign matter is scraped off the reference roller and the thickness detection roller. However, in such a thickness detection unit, the rotation of the reference roller and the thickness detection roller is inhibited by the scraper, which may cause a conveyance failure of the bill. In addition, such a thickness detection unit needs to increase the number of motors for rotating the reference roller and the thickness detection roller because the load when the reference roller and the thickness detection roller rotate increases. As a result, the structure becomes complicated and the cost increases, and the thickness detection unit becomes large.

  Moreover, the thickness detection part described in Unexamined-Japanese-Patent No. 2010-146421 is said reference | standard roller by making the crescent-shaped scraper which can rotate with respect to each of a reference | standard roller and a thickness detection roller one by one. And, regardless of whether the thickness detection roller is rotated clockwise or counterclockwise, foreign matter is scraped off the reference roller and the thickness detection roller. However, such a thickness detection unit complicates the configuration of the scraper and reduces the manufacturability and the assemblability.

  On the other hand, the discrimination unit 18 performs one scraper 64D for one reference roller 56, one scraper 64U for one thickness detection roller 58, and a deposit transaction time compared to the withdrawal transaction. At the same time, it was made to abut each other at an angle at which much foreign matter is scraped off. Further, the discrimination unit 18 performs the foreign matter removing operation prior to the withdrawal transaction. As a result, the discrimination unit 18 maintains the foreign matter removal performance for removing foreign matter from the reference roller 56 and the thickness detection roller 58 to the same extent as that of the conventional discrimination unit, thereby detecting the bill thickness detection performance with the conventional discrimination unit. Since the load applied to the reference roller 56 and the thickness detection roller 58 can be minimized while maintaining the same degree, the configuration can be simplified, and the manufacturability and the assemblability can be improved.

  Further, the discrimination unit 18 arranges the bill image detection unit 53 on the upstream side of the conveyance direction of the bill with respect to the thickness detection roller 58 at the time of the deposit transaction. For this reason, the discrimination unit 18 can move the foreign matter removed from the thickness detection roller 58 and moved into the transport path 32 to the downstream side in the transport direction away from the bill image detection unit 53 by the transported banknote. As a result, the discrimination unit 18 can make it difficult for foreign matter removed from the thickness detection roller 58 to reach the bill image detection unit 53, and foreign matter deposits on the surface of the image sensor of the bill image detection unit 53 and the image data becomes abnormal. It can prevent that it becomes a cause of false detection.

  Further, the discrimination unit 18 causes the scraper 64U to abut on the rear side of the thickness detection roller 58 that is separated from the bill image detection unit 53. Therefore, the discrimination unit 18 can allow the thickness detection roller 58 to be present between the upper contact CU and the bill image detection unit 53. Thus, the discrimination unit 18 can make it difficult for the foreign matter removed from the thickness detection roller 58 to reach the bill image detection unit 53.

  Further, the discrimination unit 18 arranges the drive roller 42 and the driven roller 48 between the bill image detection unit 53 and the thickness detection unit 60. Therefore, the discrimination unit 18 can cause a mechanism to be present on the movement path of the foreign matter between the thickness detection unit 60 and the bill image detection unit 53, and the distance between the thickness detection unit 60 and the bill image detection unit 53 Can be Thus, the discrimination unit 18 can make it difficult for the foreign matter removed from the reference roller 56 and the thickness detection roller 58 to reach the bill image detection unit 53.

  Further, the discrimination unit 18 arranges the drive roller 42 and the driven roller 48, the bill image detection unit 53, the drive roller 40 and the driven roller 46 between the magnetic detection unit 50 and the thickness detection unit 60. did. Therefore, the discrimination unit 18 can make a distance between the magnetic detection unit 50 and the thickness detection unit 60. As a result, the discrimination unit 18 can make it difficult for particularly the magnetic ink having magnetism among the foreign substances removed from the reference roller 56 and the thickness detection roller 58 to reach the magnetic detection unit 50, and cause the erroneous detection in the magnetic detection unit 50. Can be prevented.

  Furthermore, the thickness detection unit 60 is configured to form a plate spring 62U in the left-right direction from the left end to the right end of the thickness detection unit 60. Thus, the thickness detection unit 60 can simplify the configuration, and when the thickness detection unit 60 is assembled, the thickness detection unit 60 can be independent for each thickness detection roller 58 and the number of the thickness detection rollers 58 can be reduced. Since it is only necessary to attach one plate spring 62U to the discrimination unit case 30, as compared to the case where the plate spring 62U prepared as described above is attached to the discrimination unit case 30, the number of man-hours during assembly can be reduced. it can. The same applies to the plate spring 62D.

  Furthermore, in the thickness detection unit 60, the front end of the scraper 64U is located above the detection roller hole 34UH and substantially in the same longitudinal position as the front end of the upper rear end 34UEb, or the front end of the upper rear end 34UEb It was made to set behind the department. As a result, when the maintenance worker maintains the thickness detection unit 60, the thickness detection unit 60 is less likely to be in contact with the scraper 64U from the inside of the conveyance path 32 via the detection roller rear hole 34UHb. It can prevent 62U damage.

  According to the above configuration, the discrimination unit 18 is configured to discharge the reference roller rotation direction RDi as a reference roller taking-in direction for taking the banknote into the automatic teller machine 1 and the reference roller for discharging the banknote out of the automatic teller machine 1. A reference roller 56 rotatable in the dispensing reference roller rotation direction RDo as a discharge direction, and a position facing the reference roller 56 and taking in a bill into the automated teller machine 1 as a receipt roller taking-in direction Thickness at which the time detection roller rotation direction RUi and the paper money are discharged out of the automated teller machine 1 can be rotated in the withdrawal roller detection direction RUo as the discharge direction of the detection roller, and the paper money is held between the reference roller 56 A detection roller 58, a displacement sensor 59 for detecting the displacement of the thickness detection roller 58, a reference roller rotation direction RDi at the time of receipt, and a detection roller rotation direction RU at the time of receipt To provide the foreign matter removing portion 66 in contact with the surfaces of the reference roller 56 and the detection roller 58 so that the foreign matter removal rate is higher than the withdrawal time reference roller rotation direction RDo and the withdrawal time detection roller rotation direction RUo. I made it. As a result, the discrimination unit 18 can simplify the configuration of the foreign matter removal unit 66 while maintaining the foreign matter removal performance of removing the foreign matter from the reference roller 56 and the thickness detection roller 58.

[2. Second embodiment]
[2-1. Configuration of banknote deposit and withdrawal machine and discrimination unit]
As shown in FIGS. 1 and 2, the bill depositing / dispensing machine 110 of the automated teller machine 101 according to the second embodiment is compared to the bill depositing / dispensing machine 10 of the automated teller machine 1 according to the first embodiment. Thus, although the discrimination unit 118 is different from the discrimination unit 18, the other configuration is the same. As shown in FIG. 3, the discrimination unit 118 according to the second embodiment is different from the discrimination unit 18 according to the first embodiment in that the thickness detection unit 160 is different from the thickness detection unit 60, The rest is configured in the same manner.

[2-2. Configuration of thickness detection unit]
As shown in FIG. 7 corresponding to FIG. 6 and FIG. 8 corresponding to FIG. 5, the thickness detection unit 160 according to the second embodiment is compared to the thickness detection unit 60 according to the first embodiment. Although the upper transport guide 134U and the lower transport guide 134D are different from the upper transport guide 34U and the lower transport guide 34D, and the foreign matter removing unit 166 (the foreign matter removing units 166U and 166D) are different from the foreign matter removing unit 66, respectively. Except for the above, the configuration is the same.

  The lower rear end 134DEb and the lower front end 134DEf of the lower conveyance guide 134D are respectively rearward of the lower rear end 34DEb and the lower front end 34DEf of the lower conveyance guide 34D (FIG. 4). And located in front of. Therefore, the lower conveying guide 134D is formed such that the lengths in the front-rear direction of the reference roller hole 134DH, the reference roller rear hole 134DHb, and the reference roller front hole 134DHf are longer than the lower conveying guide 34D.

  The upper rear end 134UEb and the upper front end 134UEf of the upper conveyance guide 134U are located rearward and forward of the upper rear end 34UEb and the upper front end 34UEf of the upper conveyance guide 34U (FIG. 4), respectively. ing. Therefore, the upper conveying guide 134U is formed such that the lengths of the detection roller hole 134UH, the detection roller rear hole 134UHb, and the detection roller front hole 134UHf in the front-rear direction are longer than the upper conveyance guide 34U.

[2-3. Configuration of Foreign Matter Removal Unit]
The foreign matter removing unit 166 is configured similarly to the foreign matter removing unit 66 except that the plate spring 162 (the plate springs 162U and 162D) is different from the plate spring 62 (the plate springs 62U and 62D). .

  The plate spring 162D is provided independently for each reference roller 56 along the left-right direction from the left end to the right end of the thickness detection unit 160, and provided for the number of the reference rollers 56, and the scraper The upper end portion is attached to the discrimination unit housing 30 while the 64D is integrated.

  The plate spring 162U is provided independently for each thickness detection roller 58 along the left-right direction from the left end to the right end of the thickness detection unit 160, and provided for the number of the thickness detection rollers 58, The scraper 64 </ b> U is integrated with the lower end portion, and the upper end portion is attached to the discrimination unit housing 30.

  In the thickness detection unit 160, the upper contact CU is set forward of the front end of the upper rear end 134UEb.

  In this configuration, when the reference roller 56 rotates in the reference roller rotation direction RDi at the time of deposit, the foreign matter removing unit 166D removes the foreign matter adhering to the surface of the reference roller 56 with the scraper 64D. At this time, the foreign matter removed from the surface of the reference roller 56 does not contact the surface of the reference roller 56 again, falls downward by gravity and is deposited on the guide portion 70.

  Further, when the thickness detection roller 58 is rotated in the detection roller rotation direction RUi at the time of deposit, the foreign matter removing unit 166U removes the foreign matter adhering to the surface of the thickness detection roller 58 by the scraper 64U. At this time, the foreign matter removed from the surface of the thickness detection roller 58 does not contact again with the surface of the thickness detection roller 58, and falls downward by gravity due to gravity, and the detection roller rear hole 134UHb and the reference roller rear hole 134DHb Sequentially and deposit on the guide portion 70.

  Here, in the thickness detection unit 160, since the upper contact CU is positioned forward of the front end of the upper rear end 134UEb, that is, almost directly above the detection roller rear hole 134UHb, the thickness detection is performed by the scraper 64U. The foreign matter removed from the surface of the roller 58 hardly moves to the upper side surface of the upper conveyance guide 34U, and most of the foreign matter moves to the guide portion 70 and the inside of the conveyance path 32.

  Thus, the discrimination unit 118 sets the upper contact CU in front of the front end of the upper rear end 134UEb. Thus, the discrimination unit 118 can drop most of the foreign matter removed from the surface of the thickness detection roller 58 into the transport path 32 through the detection roller rear hole 134UHb. Thus, the discrimination unit 118 can prevent the foreign matter from moving to the upper side surface of the upper conveyance guide 34U and moving to another mechanism in the discrimination unit 118.

  In addition, the discrimination unit 118 according to the second embodiment has substantially the same effect as the discrimination unit 18 according to the first embodiment.

[3. Third embodiment]
[3-1. Configuration of banknote deposit and withdrawal machine and discrimination unit]
As shown in FIGS. 1 and 2, the bill depositing / dispensing machine 210 of the automated teller machine 201 according to the third embodiment is compared with the bill depositing / dispensing machine 10 of the automated teller machine 1 according to the first embodiment. Thus, although the discrimination unit 218 is different from the discrimination unit 18, the other configuration is the same. As shown in FIG. 3, the discrimination unit 218 according to the third embodiment is different from the discrimination unit 18 according to the first embodiment in that the thickness detection unit 260 is different from the thickness detection unit 60, The rest is configured in the same manner.

[3-2. Configuration of thickness detection unit]
As shown in FIG. 9 corresponding to FIG. 6 and FIG. 10 corresponding to FIG. 5, the thickness detection unit 260 according to the third embodiment is compared to the thickness detection unit 60 according to the first embodiment. Although the foreign matter removing unit 266 is different from the foreign matter removing unit 66, the other features are the same.

[3-3. Configuration of Foreign Matter Removal Unit]
The foreign matter removing unit 266 is configured similarly to the foreign matter removing unit 66 except that the foreign matter removing unit 266D is different from the foreign matter removing unit 66D, but the foreign matter removing unit 266D is different from the foreign matter removing unit 66D.

  The scraper 264D of the foreign substance removing unit 266D is disposed such that the front end is in the front-up direction, and for each of the plurality of reference rollers 56, on the rear upper circumferential side which is above the rotation center of the reference rollers 56, The rear end abuts over the entire length from the left end to the right end in the axial direction. The scraper 264D scrapes off and removes foreign matter adhering to the surface of the reference roller 56 by the rising edge of the reference roller 56 when the reference roller 56 rotates in the reference roller rotation direction RDi at the time of deposit, while the reference roller 56 When rotating in the reference roller rotation direction RDo at the time of withdrawal, the edge does not stand up, and therefore, the foreign matter adhering to the surface of the reference roller 56 is disposed at an angle which is not removed as much as at the time of deposit transaction.

  The flat spring 262D of the foreign substance removing unit 266D is formed from the left end to the right end of the thickness detection unit 260 in the left-right direction, and the scraper 264D is integrated at the upper end and the lower end It is attached to the body 30.

[4. Other embodiments]
In the embodiment described above, the case where the foreign matter removing operation is performed before the dispensing transaction is described. The present invention is not limited to this, and the foreign matter removing operation may be performed at any timing such as after every transaction, every time a predetermined number of bills are processed, or every predetermined time elapses.

  Further, in the embodiment described above, the discrimination units 18 and 118 arranged in the order of the magnetic detection unit 50, the bill image detection unit 53, and the thickness detection unit 60 from the front to the rear in the discrimination unit housing 30 At 218, the case of applying the present invention has been described. The present invention is not limited to this, and the present invention is applied to a discrimination unit in which the magnetic detection unit 50, the bill image detection unit 53, and the thickness detection unit 60 are arranged in various orders in the discrimination unit housing 30. Also good. In that case, when the magnetic detection unit 50 is disposed between the thickness detection unit 60 and the bill image detection unit 53, the bill image detection unit 53 can be further separated from the thickness detection unit 60.

  Furthermore, in the first embodiment described above, the case where the scraper 64 and the plate spring 62 are formed by integral molding has been described. The present invention is not limited to this, and the scraper and the plate spring may be integrated by bonding ones manufactured as separate parts. The same applies to the second and third embodiments.

  Furthermore, in the first embodiment described above, the case where all the scrapers 64 are connected by one leaf spring 62 has been described. The present invention is not limited to this, and scrapers 64 corresponding to two or more arbitrary numbers of reference rollers 56 and thickness detection rollers 58 may be connected by a plate spring. The same applies to the third embodiment.

  Furthermore, in the embodiment described above, the case where the guide portion 70 and the foreign matter storage portion 68 are integrated has been described. The present invention is not limited to this, and the guide portion and the foreign matter storage portion may be divided, and only the foreign matter storage portion may be removed outside the discrimination portions 18, 118 and 218 at the time of cleaning. Furthermore, in the present invention, the foreign matter storage portion 68 and the guide portion 70 may not be provided and may be omitted.

  Further, in the embodiment described above, the case of using the displacement sensor 59 which is an eddy current displacement sensor has been described. The present invention is not limited to this, and various types of displacement sensors such as a capacitive displacement sensor, an optical displacement sensor, a contact displacement sensor, etc. may be used.

  Furthermore, in the embodiment described above, the case where the present invention is applied to the discrimination units 18, 118, and 218 in which the banknotes travel in the front-rear direction along the substantially horizontal conveyance path 32 has been described. The present invention is not limited to this, and the present invention may be applied to a discrimination unit that travels a bill along various directions, such as traveling the bill in the vertical direction along a substantially vertical conveyance path.

  Furthermore, the present invention is not limited to the above-described embodiments and other embodiments. That is, the present invention can be applied to an embodiment in which any or all of the above-described embodiments and any of the other embodiments described above are arbitrarily combined or an embodiment in which a part is extracted. It is.

  Furthermore, in the embodiment described above, the case has been described where the present invention is applied to the discrimination units 18, 118 and 218 for discriminating the banknote BL as a medium in the automatic teller machines 1, 101 and 201 for trading cash. The present invention is not limited to this, and may be applied to various devices for discriminating thin paper-like media such as, for example, bonds, certificates, gift certificates, cash vouchers, admission tickets and the like. Further, for example, it is configured by a combination of a plurality of types of devices that perform various processes related to the transaction of bills and coins, such as a bill depositing / dispensing machine for inserting and removing bills and a sealed small bundle payment machine for sealing bills every predetermined number of sheets. The present invention may be applied to a cash processing apparatus.

  In the embodiment described above, the customer handling unit 3 as the customer handling unit, the reference roller 56 as the reference roller, the thickness detection roller 58 as the detection roller, and the displacement sensor 59 as the displacement detection unit; The case where the automated teller machine 1, 101, and 201 as the medium dealing device are configured by the foreign matter removing units 66, 166, and 266 as the foreign matter removing member has been described. The present invention is not limited to this, and the medium dealing device may be configured by a customer handling unit having various other configurations, a reference roller, a detection roller, a displacement detection unit, and a foreign matter removing member.

  The present invention can also be used in various devices for removing foreign matter adhering to a medium.

  1, 101, 201 ...... Automatic cash transaction apparatus 2, 2 筐 体 Case 3, 3 顧客 Customer handling department, 4 カ ー ド Card entry and exit, 5 入 Cash slot, 6 ...... Operation display section, 7 ...... Numeric keypad , 8 ... receipt issue port, 9 ... main control unit, 10 ... banknote deposit and withdrawal machine, 11 ... deposit and withdrawal machine casing, 12 ... control unit, 14 ... storage unit, 16 ... deposit and withdrawal section 18, 118, 218: discrimination unit, 20: temporary storage unit, 22: fake ticket storage, 24: transport unit, 26: banknote storage, 28: reject storage, 30: discrimination unit housing Body 32: Conveying path 34U, 134U Upper conveying guide 34 AU Upper conveying surface 34D, 134D Lower conveying guide 34 AD Lower conveying surface 34DH, 134 DH Reference roller hole Part, 34UH, 134UH ... Detection roller hole, 34DHf, 134DHf ... Reference Laura front hole, 34DHb, 134DHb ... reference roller rear hole, 34DEb, 134DEb ... lower rear end, 34DEf, 134DEf ... lower front end, 34UHf, 134UHf ... detection roller front hole, 34UHb, 134UHb ... detection roller rear hole, 34UEb, 134UEb ... upper rear end, 34UEf, 134UEf ... upper front end, 38, 40, 42 ... drive roller, 44, 46, 48 ... driven roller , 50: magnetic detection unit, 52: magnetic sensor, 53: bill image detection unit, 53U: upper reflection transmission sensor unit, 53D: lower reflection transmission sensor unit, 54: magnetic gap roller, 56. ... Reference roller, 56S ... Reference roller shaft, 58 ... Thickness detection roller, 59 ... Displacement sensor, 60, 160 260 ... thickness detection unit, 62, 162, 262 ... leaf spring, 64, 264 ... scraper, 66, 166, 266 ... foreign matter removal unit, 68 ... foreign matter storage unit, 70 ... guide unit, CU ...... Upper contact, CD ...... Lower contact, BL ...... Banknote, Di Di Transfer direction when depositing, Do 搬 送 Transfer direction when dispensing, RUi 検 知 Detection roller rotating direction when depositing, RUo ...... when dispensing Detection roller rotation direction, RDi ... Reference roller rotation direction at the time of deposit, R Do ......... Reference roller rotation direction at the time of withdrawal.

Claims (11)

A reference roller loading direction for taking the medium into the medium trading device, and a reference roller rotatable in a discharge direction for the reference roller for discharging the medium out of the medium trading device;
The reference roller is provided at a position facing the reference roller and is rotatable in a detection roller loading direction for taking the medium into the medium trading device and a detection roller discharging direction for discharging the medium from the medium trading device. A detection roller for holding the medium between
A displacement detection unit that detects the displacement of the detection roller;
Foreign matter contacting the surface of the reference roller and the detection roller so that the removal rate of the foreign matter is higher in the reference roller taking-in direction and the detection roller taking-in direction than in the reference roller discharging direction and the detection roller discharging direction A thickness detection device having a removal member. The thickness detection device according to claim 1, wherein the foreign matter removing member removes foreign matter adhering to the surfaces of the reference roller and the detection roller. The thickness detection device according to claim 2, wherein the foreign matter removed by the foreign matter removing member is dropped onto a conveyance road surface of the medium or a foreign matter storage portion provided below the conveyance road surface. The thickness detection device according to claim 2, wherein the foreign matter removing member contacts the surface of the reference roller and the detection roller so as not to correspond to the reference roller discharge direction and the detection roller discharge direction. The thickness detection device according to claim 4, wherein the reference roller rotates in the reference roller loading direction, and the detection roller rotates in the detection roller loading direction before a dispensing transaction is performed. If an abnormality occurs in the detection value of the thickness of the medium by the displacement detection unit during the dispensing transaction, the reference roller is in the reference roller loading direction, and the detection roller is in the detection roller loading direction. The thickness detection device according to claim 4 which rotates. A reference roller side conveyance guide in which a reference roller hole is formed which guides the side surface of the medium on the side of the reference roller and exposes the reference roller to the conveyance path of the medium;
A detection roller hole is formed to guide the side surface of the medium on the detection roller side and expose the detection roller to the conveyance path, and the conveyance path for conveying the medium between the medium and the reference roller side conveyance guide is formed. And a detection roller side conveyance guide to be formed;
The thickness detection device according to claim 4, wherein the detection roller hole portion is formed so that the foreign matter removed from the detection roller can pass therethrough. The thickness detection device according to claim 7, wherein the foreign matter removing member contacts the lower side of the central axis with respect to the reference roller and the detection roller. The said thickness detection apparatus is arrange | positioned rather than the image detection part which optically detects the image of the said medium at the downstream of the medium conveyance direction at the time of the deposit time in which the said medium is conveyed at the time of a deposit transaction. Thickness detection device. 10. The thickness detection device according to claim 9, wherein the foreign matter removing member is in contact with a peripheral side surface of the detection roller that is separated from the image detection unit. A customer service department that accepts media transactions;
A reference roller loading direction for taking the medium into the medium transaction device, and a reference roller rotatable in a reference roller discharge direction for discharging the medium from the medium transaction device;
The reference roller is provided at a position facing the reference roller and is rotatable in a detection roller loading direction for taking the medium into the medium trading device and a detection roller discharging direction for discharging the medium out of the medium trading device; A detection roller for holding the medium between
A displacement detection unit that detects the displacement of the detection roller;
Foreign matter contacting the surface of the reference roller and the detection roller so that the removal rate of the foreign matter is higher in the reference roller taking-in direction and the detection roller taking-in direction than in the reference roller discharging direction and the detection roller discharging direction A media trading device having a removal member.

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