EP0280147A2 - Papierblätterverarbeitungsvorrichtung - Google Patents

Papierblätterverarbeitungsvorrichtung Download PDF

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Publication number
EP0280147A2
EP0280147A2 EP88102194A EP88102194A EP0280147A2 EP 0280147 A2 EP0280147 A2 EP 0280147A2 EP 88102194 A EP88102194 A EP 88102194A EP 88102194 A EP88102194 A EP 88102194A EP 0280147 A2 EP0280147 A2 EP 0280147A2
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EP
European Patent Office
Prior art keywords
thickness
detecting
paper sheet
receiving member
paper sheets
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP88102194A
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English (en)
French (fr)
Other versions
EP0280147A3 (de
Inventor
Kazuhiro Omron Tateisi Electronics Co. Mizunaga
Takashi Omron Tateisi Electronics Co. Ohno
Takashi Omron Tateisi Electronics Co. Hase
Norio Omron Tateisi Electronics Co. Tsuchitani
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Omron Corp
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Omron Tateisi Electronics Co
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Filing date
Publication date
Application filed by Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Publication of EP0280147A2 publication Critical patent/EP0280147A2/de
Publication of EP0280147A3 publication Critical patent/EP0280147A3/de
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
    • B65H7/06—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed
    • B65H7/12—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed responsive to double feed or separation
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
    • B65H7/06—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D11/00—Devices accepting coins; Devices accepting, dispensing, sorting or counting valuable papers
    • G07D11/10—Mechanical details
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D11/00—Devices accepting coins; Devices accepting, dispensing, sorting or counting valuable papers
    • G07D11/20—Controlling or monitoring the operation of devices; Data handling
    • G07D11/22—Means for sensing or detection
    • G07D11/235—Means for sensing or detection for monitoring or indicating operating conditions; for detecting malfunctions
    • G07D11/237—Means for sensing or detection for monitoring or indicating operating conditions; for detecting malfunctions for detecting transport malfunctions, e.g. jams or misfeeds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/11—Length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/13—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/21—Angle
    • B65H2511/212—Rotary position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/24—Irregularities, e.g. in orientation or skewness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/30—Numbers, e.g. of windings or rotations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/51—Presence
    • B65H2511/514—Particular portion of element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/52—Defective operating conditions
    • B65H2511/524—Multiple articles, e.g. double feed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/50—Timing
    • B65H2513/51—Sequence of process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B65H2553/41—Photoelectric detectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/60—Details of intermediate means between the sensing means and the element to be sensed
    • B65H2553/61—Mechanical means, e.g. contact arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/13—Parts concerned of the handled material
    • B65H2701/131—Edges
    • B65H2701/1311—Edges leading edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/13—Parts concerned of the handled material
    • B65H2701/131—Edges
    • B65H2701/1313—Edges trailing edge

Definitions

  • This invention relates to an apparatus for handling conveyed paper sheets inclusive of bank notes.
  • the paper sheet handling apparatus include an apparatus for sensing the parameters of paper sheets (parameters such as thickness, length, the existence of skew and, if skew exists, the angle of skew), and an apparatus which uses sensed parameters to count the number of paper sheets and release the number of paper sheets counted.
  • the paper sheet handling apparatus is provided, for example, in a transaction processing unit such as an automated teller's machine (ATM) or automatic cash dispenser (CD).
  • ATM automated teller's machine
  • CD automatic cash dispenser
  • a specific example of the apparatus is a machine for releasing or discharging bank notes.
  • a bank note releasing machine is adapted to release or discharge a given number of bank notes and is equipped with a bank note thickness detector which, in order to assure that the released bank notes are counted correctly, senses whether the bank notes are being conveyed one at a time or whether two or more bank notes are superimposed while being conveyed.
  • Such thickness detectors are either of a mechanical type using a cam or of an optical type relying upon a photosensor.
  • One type of the mechanical arrangement has a freely rotatable cam arranged between opposing members leaving a gap equivalent to the thickness of a single bank note.
  • the cam rotates to sense the event.
  • this arrangement is only capable of sensing the passage of one bank note or more than one bank note.
  • the conventional bank note releasing machine performs a bank note releasing operation only if passage of one bank note is determined; if two or more bank notes are superimposed, these are recovered or collected within the machine without being released.
  • the mechanical arrangement using the cam also has a number of other drawbacks. For example, in order for it to be applied to a wide variety of bank notes of different thicknesses, one arrangement must be provided for each type of bank note.
  • Reliability is low with regard to bank notes having a large variation in thickness, as is the case when one and the same note has a thickness that differs depending on the location.
  • the sensed thickness varies depending upon the frictional coefficient of the bank notes, and sensing errors occur due to bank notes whose edges are folded or which are wrinkled.
  • length in the direction of note conveyance cannot be measured.
  • the optical arrangement is adapted to sense two superimposed bank notes by measuring the amount of transmitted light in the thickness direction of the bank notes.
  • the problem with this expedient is poor reliability caused by bank notes which are soiled.
  • An object of the present invention is to provide a paper sheet handling apparatus in which accurate information relating to the paper sheets being conveyed can be obtained.
  • Another object of the invention is to provide a paper sheet releasing machine capable of minimizing the number of paper sheets requiring to be recovered or collected within the machine.
  • a further object of the invention is to provide a paper sheet parameter detecting apparatus in which an electric signal indicative of paper sheet thickness can be obtained, thereby making it possible to deal with variations in paper sheet thickness, and in which a high reliability is assured even if paper sheets are soiled, which apparatus also makes it possible to sense length in the conveyance direction of the paper sheets as well as any skewing of the paper sheets.
  • Still another object of the invention is to provide a paper sheet thickness detecting apparatus capable of detecting the thickness of paper sheets precisely even if the paper sheets are conveyed in a bent, folded or soiled state.
  • a paper sheet handling apparatus comprises at least two thickness detectors arranged side by side at a suitable spacing in a direction perpendicular to that in which paper sheets are conveyed, and means for forming information relating to the conveyed paper sheets based on output signals produced by the thickness detectors.
  • signals indicative of the paper sheet thickness are obtained from the thickness detectors, which are spaced apart a predetermined distance in the width direction. Accordingly, information relating to the paper sheets being conveyed can be accurately detected by using the leading and trailing edges of the signals outputted by the thickness detectors, the duration times of the signals and values represented by these signals. Since the thickness of the paper sheets can be detected directly, the results are not influenced by grime on the paper sheets.
  • One item of information relating to the paper sheets is the number of sheets. Accurate detection of the number of paper sheets being conveyed past the thickness detectors at one time makes it possible to control the release of the paper sheets.
  • a paper sheet releasing apparatus comprises at least two thickness detectors arranged side by side at a suitable spacing in a direction perpendicular to that in which paper sheets are conveyed, means for calculating the number of paper sheets being conveyed based on output signals produced by the thickness detectors, and means for counting the calculated number of paper sheets as a number of paper sheets which has been released or discharged.
  • the number of paper sheets can be counted accurately not only when sheets are conveyed one at a time but also when two or more sheets are conveyed in a superimposed state. As a result, as many sheets as possible can be dispensed without recovering sheets unnecessarily.
  • a paper sheet parameter detecting apparatus comprises at least two thickness detectors arranged side by side at a suitable spacing in a direction perpendicular to that in which paper sheets are conveyed, and arithmetic means for calculating parameters of the conveyed paper sheets based on output signals produced by the thickness detectors.
  • Each of the thickness detectors comprise a receiving member provided on one side of the conveyance path of the paper sheets, a detecting roller provided opposite the receiving member on other side of the conveyance path and urged in a direction to contact the receiving member, the detecting roller being free to move toward and away from the receiving member, and a displacement sensor for outputting an electric signal representing an amount of displacement of the detecting roller displaced by a paper sheet conveyed between the receiving member and the detecting roller.
  • the detecting roller When a paper sheet is conveyed between the receiving member and the detecting roller, the detecting roller is displaced by an amount equivalent to the thickness of the paper sheet and the amount of detecting roller displacement is sensed by the displacement sensor, whereby a signal indicative of the thickness of the paper sheet is obtained.
  • the signal has a value which varies with a change in the thickness of the paper sheet and gives a direct representation of the change in paper sheet thickness. This makes it possible to deal with paper sheets of any thickness.
  • An apparatus for detecting the thickness of paper sheets in accordance with the invention comprises at least two thickness detectors arranged at a suitable spacing in a direction perpendicular to that in which paper sheets are conveyed, means for measuring a time difference between leading edges of output signals from the two thickness detectors and detecting a skew angle of a conveyed paper sheet by using the measured time difference, means for integrating the output signal from at least one of the two thickness detectors over a period of time required for the paper sheet to pass, and arithmetic means for calculating the thickness of the paper sheet from the detected skew angle, the integrated value and a reference length in the conveyance direction of the paper sheets.
  • a signal indicative of the thickness of a paper sheet is obtained.
  • the signal has a value which varies with a change in the thickness of the paper sheet and gives a direct representation of the change in paper sheet thickness. This makes it possible to deal with paper sheets of any thickness.
  • At least a pair of the thickness detectors is provided, with the detectors being spaced apart a prescribed distance in the width direction.
  • an integrated value of the output signal from at least one of the thickness detectors is measured and represents the product of the thickness and length of a paper sheet.
  • a standard (reference) length conforming to the type of paper sheet is employed as the length of the paper sheet whose thickness is to be calculated. This makes it possible to detect the thickness of a paper sheet very accurately.
  • the detected angle of skew is used in the computation of thickness. Therefore, even if a conveyed sheet of paper is skewed, it is possible to detect the thickness of the paper sheet correctly.
  • Thickness can also be detected correctly in the following case: For example, even if a paper sheet is conveyed in a bent or folded state in part so that the actual length thereof is shorter than the aforementioned standard length, the thickness of the sheet can still be calculated by using the standard length. Since the thickness of the folded or bent portion is greater than the thickness of the other portions of the sheet so that the integrated value will be affected by an amount corresponding to this amount of greater thickness, the thickness calculated using the standard length will be substantially the same as that of a paper sheet which is not bent or folded. Accordingly, thickness can be accurately detected even if the a paper sheet is conveyed in a folded state.
  • This embodiment of the invention is applied to a bank note releasing machine in a transaction processing unit such as an ATM or CD.
  • a bank note releasing machine is adapted to deliver and discharge a commanded number of bank notes accommodated in a bank note storage bin.
  • a bank note count detecting apparatus is used in order to count the number of bank notes delivered from the bin.
  • a bank note parameter detecting apparatus and a bank note thickness detecting apparatus. These apparatus are used for counting the number of bank notes delivered from the bin. In order to count the number of bank notes, it is necessary to sense whether a single bank note is being conveyed correctly or whether two or more bank notes are being conveyed while in a superimposed state.
  • Fig. 1 illustrates a portion of the arrangement of the bank note releasing machine.
  • a bank note storage bin 1 arranges and accommodates a large number of bank notes B in an inclined but nearly vertical state.
  • the bank notes B are delivered from the bin 1 one at a time by a feed roller 4 and are conveyed along a conveyance path 3.
  • the conveyance path 3 comprises belts which embrace the bank notes B from both surfaces thereof and a number of rollers or pulleys about which the belts are wound.
  • Two side-by-side bank note thickness detectors 5 are provided substantially midway along the conveyance path 3. As will become apparent from the following discussion, the thickness, length, skew angle and number of bank notes being conveyed past the thickness detectors 5 are measured based on output signals from these thickness detectors 5.
  • a changeover flapper 6 is held in the attitude indicated by the solid lines so that the bank note will be delivered to a temporary holding mechanism (not shown) constituting the next stage of the system. If a measured value is not within the allowable limits, e.g. if the number of bank notes is unknown (or if it is determined that two bank notes are being conveyed in an overlapping state), or if it is determined from the measured value of thickness or length that a bank note is not of a prescribed type, the flapper 6 is changed over as indicated by the phantom lines in Fig. 1 so that the pertinent bank note or notes may be recovered in a recovery or collection bin 2.
  • the bank note thickness detector 5 in accordance with the invention is applicable to bank notes of a plurality of kinds.
  • Figs. 2 and 3 illustrate the arrangement of the bank note thickness detectors 5.
  • a tank note B while embraced by upper and lower conveyor belts 22 is conveyed along the conveyance path 3 in an attitude where the longitudinal direction of the bank note is perpendicular to the conveyance direction.
  • the two thickness detectors 5 are arranged side by side a suitable distance apart in a direction (the width direction of the conveyance path 3) perpendicular to the conveyance direction.
  • Arranged immediately below these detectors 5 are respective rollers 17.
  • a shaft 18 spans frames 23 on both sides and supports the rollers 17 for free rotation.
  • the rollers 17 are formed to include respective grooves 17a with which the lower belts 22 are engaged. The circumferential surfaces of the rollers 17 extend from the grooves so as to be flush with or project beyond the embracing surfaces of the belts 22.
  • the thickness sensor 5 includes a detecting lever 10.
  • the latter is of a generally L-shaped configuration and has two end portions 10a, 10b.
  • a curved portion of the detecting lever 10 near the end portion 10a thereof is formed to include a boss 11.
  • the detecting lever 10 is extended a considerable length in the direction of the end portion 10b and is provided at a point generally midway along its length with a detecting roller 13 free to rotate about a shaft 14.
  • a tension spring 15 is provided between the end portion 10a of detecting lever 10 and a spring anchor 16 fixedly secured to the corresponding frame 23. As a result, the detecting lever 15 is biased by the spring 15 so as to urge the detecting roller 13 into pressured contact with the roller 17.
  • the detecting roller 13 contacts the peripheral surface of the roller 17 where the roller 17 is not in contact with the belt 22.
  • the detecting roller 13 moves away from the roller 17 by an amount equivalent to the thickness of the bank note.
  • the detecting lever 10 rocks as indicated by the phantom lines in Fig. 3. Since the detecting roller 13 is provided between the end portion 10b and the shaft 12, the amount of displacement of the end portion 10b is greater than that of the detecting roller 13. Thus, the amount of displacement is magnified by the action of the detecting lever 10.
  • the amount of displacement of the end portion 10b of detecting lever 10 is sensed by a displacement sensor 20 secured to a mounting member 21 fixed to the corresponding frame 23.
  • the displacement sensor 20 has a light projector (a light-­emitting element such as a light-emitting diode) and a light receiver (a light-receiving element such as a phototransistor) for receiving the light from the light projector (see Fig. 4).
  • the light projector and light receiver are provided at mutually opposing positions on either side of the end portion 10b of detecting lever 10.
  • the diameter of the projected light beam from the projector and the light reception range of the light receiver should be set so as to cover the range of displacement of the end portion 10b of lever 10 caused when three or more bank notes are introduced between the rollers 13, 17.
  • Fig. 4 illustrates the general features of the electrical arrangement of a bank note count detecting apparatus (or a parameter detecting apparatus or thickness detecting apparatus) which includes the displacement sensors 20 of thickness detectors 5 described above.
  • the output of the displacement sensor 20, namely the output electric signal from the light receiver, is sampled at a fixed period.
  • the sampled output value is converted into a digital value by an A/D converter circuit 27, which digital value is accepted by a CPU 24.
  • the CPU 24 has a memory 25 for storing an execution program and various data.
  • a bank note release controller 26 controls the drive of the feed roller 4 in the bank card storage bin 1, the drive of the rollers constituting the conveyance path 3, and the changeover of the flapper 6 and operates in accordance with commands from the CPU 24.
  • bank note thickness length along the conveyance direction which, in this embodiment, is the width direction of the bank notes
  • skew length along the conveyance direction which, in this embodiment, is the width direction of the bank notes
  • Figs. 5 and 6 illustrate a comparatively simple case.
  • Fig. 5 illustrates the state in which the bank note B is conveyed
  • Fig. 6 illustrates the outputs of the displacement sensors 20.
  • one c′f the two displacement sensors 20 shall be referred to as a right displacment sensor, and the other shall be referred to as a left displacement sensor.
  • a skew angle 8 refers to an angle which the longitudinal direction of the bank note B makes with a direction (the direction of a line connecting the centers of the left and right detecting rollers 13) perpendicular to the conveyance direction of the bank note B.
  • t1 represent the period of time during which the bank note B is being sensed by the right displacement sensor
  • t2 the period of time during which the bank note B is being sensed by the left displacement sensor
  • t3 the time difference between the leading edges of the output signals from both the left and right displacement sensors.
  • the output signal from the left or right displacement sensor 20 is integrated over the period of time t1 or t2.
  • IA1, IA2 represent the respective integrated values which prevail when a single bank note has passed through the rollers 13, 17.
  • L represent the distance between the left and right detecting rollers 13.
  • thickness IA1/t1 or IA2/t2
  • skew angle ⁇ tan ⁇ 1(V ⁇ t3/L) (2)
  • V represents the velocity at which bank notes are conveyed and is a known value decided by the apparatus driving the conveyance path 3.
  • the value of V can be obtained by measuring the amount of rotation of the roller 17, by way of example.
  • length V ⁇ t1 ⁇ cos ⁇ or V ⁇ t2 ⁇ cos ⁇ (3)
  • the number of bank notes conveyed between the rollers 13, 17 can be ascertained. If plural types of bank notes are involved, it is preferred that the abovementioned ranges be set for each type of bank note.
  • Figs. 7 and 8 illustrate a somewhat more complicated example.
  • two bank notes B are conveyed in a state in which they overlap only partially and, moreover, the leading bank note (namely the bank note farther along in the conveyance direction, referred to hereinafter as the "first" bank note) is skewed.
  • the other bank note (referred to as the "second" bank note) is not skewed.
  • Fig. 8 illustrates the waveforms of the output signals from the right and left displacement sensors which detect these two bank notes.
  • the integrated values of the right and left displacement sensor output signals be IC1 and IC2, respectively. Also, let the time period from the first leading edge to the first trailing edge of the output signal from the right displacement sensor be represented by t11, and let the time period from the second leading edge to the second trailing edge of the output signal from this sensor be represented by t12. Similarly, let the time period from the first leading edge to the first trailing edge of the output signal from the left displacement sensor be represented by t21, and let the time period from the second leading edge to the second trailing edge of the output signal from this sensor be represented by t22. Let t3 represent the time period from the first leading edge of the right displacement sensor output to the first leading edge of the left displacement sensor output.
  • the number of bank notes can be detected in the following manner: As shown in Fig. 8, the leading and trailing edges of the output from at least one of the displacement sensors are detected. In Fig. 8, pulses representing the amount of change in displacement sensor output correspond to the leading and trailing edges of the left displacement sensor.
  • Fig. 9 illustrates a portion of the memory 25.
  • the memory 25 is provided with an area for storing sampling data (the output values of the respective displacement sensor), an addition (sum) area for addition processing (in which values obtained by addition represent the integrated values IA1, IA2, ..., IC2), an area used as a flag (hereinafter referred to as a "bank note presence flag") indicating that a bank note is present, an area used as a flag (hereinafter referred to as an "end flag”) indicating the end of a bank note, and areas (not shown) for storing the abovementioned time periods t1, t2, t3, t11, t12, t21, t22, etc.
  • the bank note presence flag is turned on when a bank note is passing between the rollers 13 and 17, and the end flag is turned on when a bank note has completely passed through the rollers 13 and 17.
  • values serving as references and values indicating allowable limits which are used in performing the skew check, length check, thickness check and the like.
  • Fig. 10 illustrates the processing for accepting output signals from the displacement sensors 20 and for measuring skew angle, length, thickness, etc. relating to bank notes which have passed through the aforementioned rollers.
  • the output signals from the two displacement sensors are sampled at a fixed period (sampling period) and subjected to an A/D conversion before being accepted by the CPU 24, as described above.
  • the time required for the sampling period expires at step 31
  • first the output value of the right displacement sensor is sampled, read in by the CPU 24 and stored in the sampling data area of the memory 25 at step 32.
  • the sampling data are stored in the sample data area in a fixed sequence every sampling. Whether or not a value indicated by the sampling data exceeds a predetermined threshold level is checked at step 33.
  • This threshold level is set to a suitable level less than the thickness of one bank note. When a sampling data value first exceeds this threshold level, it is judged that the leading edge of a bank note B has just been introduced between the rollers 13, 17.
  • step 34 if a sampling data value exceeds the threshold level and the bank note presence flag is off at step 34, it is judged that a bank note has just been introduced between the rollers 13, 17 and the program proceeds to step 35, at which the bank note presence flag turns on and the sampling data are added to the data (which has initially been cleared to zero) in the addition area of the memory 25. It is permissible to adopt an arrangement in which the processing (step 32) for storing the sampling data is executed from this time onward. When the bank note presence flag is already on at step 34, this means that a bank note is in the process of passing between the rollers 13, 17. Accordingly, the program proceeds to a step 36, at which only processing for adding the sampling data is executed.
  • the bank note presence flag is on at step 37 in a case where a value indicated by the sampling data is below the aforementioned threshold level (NO at step 33), this means that the bank note has just passed through the rollers 13, 17. Therefore, the bank note presence flag is turned off at step 38 and the end flag is turned on at step 39. If the bank note presence flag is off at step 37, this means that a bank note is not present and, hence, no processing is executed.
  • both of the end flags turn on at step 40, first both of the end flags are turned off at step 41, then bank note thickness, skew angle and length are calculated at step 42 using the prescribed ones of the equations (1) through (8) given above.
  • the final results of addition in the addition areas are used as the integrated values IA1, IA2, ... IC2.
  • Data in mutually adjacent sampling data areas are compared in successive fashion. When any of the differences that result exceeds a certain threshold value, it is judged that a leading edge or trailing edge of the displacement sensor has occurred.
  • the time periods t1, t2, ..., t22 are calculated by taking the product of the number of samplings between these leading and trailing edges and the sampling period. The number of leading and trailing edges is also found. Since the velocity V and distance L have already been stored in the memory 25 (a measured value may be used as the velocity V), bank note thickness, skew angle, length and the like can also be calculated.
  • the time period t1, etc. can be clocked by providing a counter which counts the time period t1, starting the counter in response to detection of a leading edge and stopping the counter in response to detection of a trailing edge.
  • the time period t3 can be found by clocking the time from the leading edge of one item of output data from either of the right and left displacement sensors to the leading edge of one item of output data from the other of these displacement sensors.
  • Fig. 11 illustrates processing for performing various bank note checking operations based on the results of measuring various of the aforementioned bank note data (bank note parameters).
  • a skew check is carried out first at step 43. If the skew angle ⁇ is too large, the skewed bank note may jam the conveyance path. Accordingly, the measured skew angle ⁇ is compared with an upper-limit angle previously stored in the memory 25. The bank note passes the skew test (OK) if the skew angle is less than the upper-limit value, and fails the skew test (NG) if the skew angle exceeds the upper-limit value.
  • Allowable length limits and allowable thickness limits are stored beforehand in the memory 25. If the measured length and measured thickness fall within the respective limits, OK decisions are rendered; if not, NG decisions are rendered. This represents one kind of test for determining the authenticity of a bank note and assures that only a designated, correct bank note will be released.
  • the allowable limits on length and thickness are provided for each type of bank note.
  • bank notes are delivered one at a time and fed out to the temporary holding mechanism one at a time. Accordingly, a check concerning the number of bank notes is performed. If two bank notes are perfectly superimposed, as shown in Figs. 5 and 6, an investigation is carried out to determine, based on the thickness obtained in accordance with Eq. (4), whether the number of bank notes is two, three, etc. If two bank notes are partially superimposed, as shown in Figs. 7 and 8, the number of bank notes is sensed based on the number of detected edges.
  • the established number of bank notes is added to the bank note number counter and this number of cards is released.
  • the number of bank notes requiring to be recovered is reduced.
  • the number of bank notes is established only if the results of the decision based on the output signal of the left displacement sensor agree with the results based on the output signal of the right displacement sensor. Depending upon the particular case, however, it is permissible to render a decision on the established number based solely upon the output signal of one displacement sensor.
  • the bank note failing the test is recovered in the recovery bin 2 at step 49. It is possible to adopt an arrangement in which the bank note recovery operation is performed if the number of bank notes is found to be two or more in the bank note number check.
  • the sampling data sometimes become erratic if holes or the like are present in the bank notes. In such a case, it is permissible to render a decision that enables bank note release if the sampling data relating to at least one of the left and right displacement sensors pass all of the aforementioned checking operations.
  • the reason for this is that, in general, if a hole appears it will be in only one portion of a bank note, so that in most cases at least one of the displacement sensors will detect the thickness of a portion free of a hole.
  • Expedients other than the above-described addition processing can be adopted as integrating means.
  • an arrangement can be adopted in which the output signal of a displacement sensor is integrated by an integrating circuit over a period of time required for a bank note to pass the detecting roller, with the resulting integration signal being A/D-converted and then read in by the CPU.
  • a V/F converter circuit for converting the thickness detection signal of a displacement sensor into a pulsed signal of a frequency corresponding to the voltage of this detection signal, and a counter for counting the output pulses of the V/F converter circuit, operate the counter over a period of time required for a bank note to pass the detecting roller, and cause the CPU to read in the value of the count recorded by the counter.
  • the integrating time of the integrator circuit and the counting time of the counter would be decided by detecting the leading and trailing edges from the offset level of the signal outputted by the displacement sensor.
  • the thickness of a bank note can be determined by a different method in Figs. 5 and 6.
  • a bank note length W serving as a reference (which length is in the conveyance direction of the bank note B). More specifically, this alternative method is premised on knowing the types of bank notes in advance (or on the fact that only a specific type of bank note is being handled).
  • the thickness of three or more overlapping bank notes is obtained in the same fashion.
  • bank note thickness can be accurately obtained even if a portion of the bank note B is folded, as shown in Fig. 12, and even if two bank notes B partially overlap each other, as depicted in Fig. 14.
  • Fig. 12 illustrates a state in which one edge portion of a conveyed bank note B is folded.
  • the skew angle ⁇ is 0°.
  • the length (width) of the bank note B is W, as shown by the phantom lines in Fig. 12, the apparent length is smaller, namely a value of W-w (where w stands for the length of the fold), since a portion of the bank note is folded over on itself.
  • Fig. 13 illustrates the output signal waveform of e.g. the left displacement sensor 20 of the left and right displacement sensors 20 that detect the bank note B.
  • the integrated value ID1 represents the doubled portion of the bank note
  • the total of the integrated values ID1 + ID2 (the interval A to C) is a value the same as the integrated value of the displacement sensor output signal obtained when the unfolded bank note is detected.
  • the end result is that data representing the thickness of one sheet of the bank note B is obtained.
  • Fig. 14 illustrates a state in which bank notes B of length W partially overlap each other (the amount of overlap is indicated by w1). As in Fig. 12, it is assumed here that the skew angle ⁇ is 0°.
  • Fig. 15 illustrates the output signal waveform of the left displacement sensor which detects these bank notes B.
  • IE1 (the interval D to E) represent the integrated value of the output signal from the displacement sensor 20 that relates to the portion of the first bank note B1 not overlapped by the second bank note B2
  • IE3 (the interval F to G) represent the integrated value of the output signal from the displacement sensor 20 that relates to the portion of the second bank note B2 not overlapped by the first bank note B1
  • IE2 (the interval E to F) represent the amount of overlap of the bank notes B1 and B2.
  • the total of the integrated values IE1 + IE2 +IE3 (the interval D to G) is a value the same as the integrated value of the displacement sensor output signal obtained when two bank notes B are perfectly superimposed and the unfolded portion of the bank note is detected.
  • the thickness obtained by dividing this value by the length W represents the thickness of two bank notes.
  • Fig. 16 illustrates the processing for detecting thickness by accepting output signals from the displacement sensors 20 and measuring the skew angle of bank notes which have passed through the aforementioned rollers.
  • the output signals from the two displacement sensors 20 are sampled at a fixed period (sampling period) and subjected to an A/D conversion before being accepted by the CPU 24.
  • the time required for the sampling period expires, first the output value of the right displacement sensor is sampled, read in by the CPU and stored in the sampling data area of the memory 25 at step 51.
  • the sampling data are stored in the sample data area in a fixed sequence every sampling. Whether or not a value indicated by the sampling data exceeds a predetermined threshold level is checked. This threshold level is set to a suitable level less than the thickness of one bank note. When a sampling data value first exceeds this threshold level, it is judged that the leading edge of a bank note B has just been introduced between the rollers 13, 17.
  • the sampling data are added to the data (which has initially been cleared to zero) in the addition area of the memory 25 (step 52).
  • the skew angle is calculated using Eq. (2) at step 53.
  • the velocity V and distance L are previously stored in the memory 25, though a measured value can be used with regard to the velocity V.
  • step 54 at which the thickness of a bank note is calculated in accordance with Eq. (10) or (11) using the skew angle found at step 53 and the reference length W of the bank note B. Whether or not the thickness calculated indicates the thickness of a single bank note sheet is checked at step 55.
  • Allowable thickness limits are stored beforehand in the memory 25. If the measured thickness falls within the allowable limits, a YES answer, which is indicative of a single bank note sheet, is received at step 55; if not, a NO answer indicating two or more bank note sheets is received at step 55.
  • the allowable limits on thickness are provided for each type of bank note.
  • the bank note is fed out to the temporary holding mechanism (not shown) for release and the bank note number counter (not shown) is incremented to calculate the number of bank notes released (step 56).
  • bank note number check When it is ascertained by the bank note number check that the number of bank notes is two or more, these bank notes are recovered at step 57.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
EP88102194A 1987-02-25 1988-02-15 Papierblätterverarbeitungsvorrichtung Withdrawn EP0280147A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP40383/87 1987-02-25
JP62040383A JPH0734218B2 (ja) 1987-02-25 1987-02-25 紙葉類の放出装置

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EP0280147A2 true EP0280147A2 (de) 1988-08-31
EP0280147A3 EP0280147A3 (de) 1990-01-31

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EP (1) EP0280147A3 (de)
JP (1) JPH0734218B2 (de)
KR (1) KR920005339B1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
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EP0389733A3 (de) * 1989-03-31 1991-04-10 Tean Ag Zähl- und Nachprüfmaschine für Papiergeld jeder Grösse, obwohl übereinanderliegend, abhängig von einem Computer
EP0596606A1 (de) * 1992-10-08 1994-05-11 Pitney Bowes Inc. Verfahren und Einrichtung zum Erkennen von zwei übereinanderliegenden Blättern
EP0881604A1 (de) * 1997-05-30 1998-12-02 Sanden Corporation Bankautomat mit Schrägheitsprüfung
WO1999010847A1 (de) * 1997-08-27 1999-03-04 Siemens Nixdorf Informationssysteme Ag Geldausgabeautomat
FR2799192A1 (fr) * 1999-10-01 2001-04-06 Poste Dispositif de distribution automatique de billets de banque ou similaires
EP1047010A3 (de) * 1999-04-22 2004-04-14 Omron Corporation Winkeldetektor, Verarbeitungsgerät für ein Medium, Verarbeitungsgerät für eine Magnetkarte und Verarbeitungssystem für eine Karte
EP1444628A4 (de) * 2001-10-09 2005-04-06 Capital Formation Inc Ausgeben von währung
CN107085887A (zh) * 2017-05-26 2017-08-22 浙江维融电子科技股份有限公司 一种整叠出钞机的验送钞模块
DE102017103755A1 (de) * 2017-02-23 2018-08-23 Strothmann Machines & Handling GmbH Dickenmessvorrichtung

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JP5325528B2 (ja) * 2008-10-22 2013-10-23 株式会社日立情報通信エンジニアリング 紙類の搬送装置、及び紙類の重送検出方法
JP4694611B2 (ja) * 2008-11-17 2011-06-08 マミヤ・オーピー株式会社 紙幣収納装置
CN108036754B (zh) * 2017-12-29 2023-12-12 昆山盈达科机电科技有限公司 铜箔测厚机
JP7600541B2 (ja) * 2020-05-18 2024-12-17 コニカミノルタ株式会社 用紙検知装置、用紙搬送装置、および画像形成装置
CN114751238B (zh) * 2022-04-11 2024-11-22 张海燕 一种无纺布折叠机

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AT329903B (de) * 1973-05-18 1976-06-10 Oesterr Nationalbank Verfahren zur prufung des erhaltungszustandes und der echtheit von papieren und/oder drucken
US4378109A (en) * 1979-09-19 1983-03-29 Tokyo Shibaura Denki Kabushiki Kaisha Device for detecting the thickness of a paper sheet
MX2012004714A (es) 2009-10-21 2012-06-08 Daiichi Sankyo Co Ltd Derivados de 5-hidroxi-pirimidin-4-carboxamida.

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0389733A3 (de) * 1989-03-31 1991-04-10 Tean Ag Zähl- und Nachprüfmaschine für Papiergeld jeder Grösse, obwohl übereinanderliegend, abhängig von einem Computer
EP0596606A1 (de) * 1992-10-08 1994-05-11 Pitney Bowes Inc. Verfahren und Einrichtung zum Erkennen von zwei übereinanderliegenden Blättern
EP0881604A1 (de) * 1997-05-30 1998-12-02 Sanden Corporation Bankautomat mit Schrägheitsprüfung
US6062369A (en) * 1997-05-30 2000-05-16 Sanden Corp. Automatic bill accepting apparatus and method of detecting skewed bill that is inserted to the apparatus
WO1999010847A1 (de) * 1997-08-27 1999-03-04 Siemens Nixdorf Informationssysteme Ag Geldausgabeautomat
EP1047010A3 (de) * 1999-04-22 2004-04-14 Omron Corporation Winkeldetektor, Verarbeitungsgerät für ein Medium, Verarbeitungsgerät für eine Magnetkarte und Verarbeitungssystem für eine Karte
WO2001025126A1 (fr) * 1999-10-01 2001-04-12 La Poste Dispositif de distribution automatique de billets de banque ou similaires
FR2799192A1 (fr) * 1999-10-01 2001-04-06 Poste Dispositif de distribution automatique de billets de banque ou similaires
EP1444628A4 (de) * 2001-10-09 2005-04-06 Capital Formation Inc Ausgeben von währung
US7387236B2 (en) 2001-10-09 2008-06-17 Delaware Capital Formation, Inc. Dispensing of currency
US7407090B2 (en) 2001-10-09 2008-08-05 Delaware Capital Formation, Inc. Dispensing of currency
DE102017103755A1 (de) * 2017-02-23 2018-08-23 Strothmann Machines & Handling GmbH Dickenmessvorrichtung
CN107085887A (zh) * 2017-05-26 2017-08-22 浙江维融电子科技股份有限公司 一种整叠出钞机的验送钞模块

Also Published As

Publication number Publication date
JPH0734218B2 (ja) 1995-04-12
JPS63208186A (ja) 1988-08-29
EP0280147A3 (de) 1990-01-31
KR880010378A (ko) 1988-10-08
KR920005339B1 (ko) 1992-07-02

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