EP1764751B1 - Thickness detector for paper sheet and paper money handling device - Google Patents

Thickness detector for paper sheet and paper money handling device Download PDF

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Publication number
EP1764751B1
EP1764751B1 EP05751338A EP05751338A EP1764751B1 EP 1764751 B1 EP1764751 B1 EP 1764751B1 EP 05751338 A EP05751338 A EP 05751338A EP 05751338 A EP05751338 A EP 05751338A EP 1764751 B1 EP1764751 B1 EP 1764751B1
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EP
European Patent Office
Prior art keywords
sheet
rollers
detection
displacement
information
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.)
Expired - Fee Related
Application number
EP05751338A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1764751A4 (en
EP1764751A1 (en
Inventor
Takashi Yoshida
Akira Mori
Masanori Terao
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Omron Terminal Solutions Corp
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Hitachi Omron Terminal Solutions Corp
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Publication date
Application filed by Hitachi Omron Terminal Solutions Corp filed Critical Hitachi Omron Terminal Solutions Corp
Publication of EP1764751A1 publication Critical patent/EP1764751A1/en
Publication of EP1764751A4 publication Critical patent/EP1764751A4/en
Application granted granted Critical
Publication of EP1764751B1 publication Critical patent/EP1764751B1/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • 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
    • G07D7/16—Testing the dimensions
    • G07D7/164—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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/14—Roller pairs
    • B65H2404/143—Roller pairs driving roller and idler roller arrangement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/14—Roller pairs
    • B65H2404/144—Roller pairs with relative movement of the rollers to / from each other
    • 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
    • B65H2511/50—Occurence
    • B65H2511/515—Absence
    • B65H2511/518—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
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/1912—Banknotes, bills and cheques or the like
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D2207/00—Paper-money testing devices

Definitions

  • the present invention relates to a sheet thickness detecting apparatus for detecting altered sheets.
  • a bill identification apparatus is provided for this purpose.
  • the previous apparatus has a sheet thickness detecting apparatus that is comprised of a reference roller to be driven; and a detecting roller whose outer ring is pressed toward the reference roller, wherein an elastic member is used for connection between the outer ring and its rotary shaft in such a way that the detecting roller becomes capable of rotating depending on the rotation of the reference roller.
  • Sheets are fed between the reference roller and detecting roller so that the slight blunt prominence of the tape (hereinafter referred to as "slight prominence”) is identified in response to the displacement of the outer ring.
  • Patent Document 1 Japanese utility model publication No. 6 (A.D.1994)-49442
  • the document EP0080309 discloses an apparatus for detecting double feeding or overlapping of banknotes by means of having two rollers in-between which banknotes are conveyed into, one of the rollers being a follower roller that displaces vertically depending on the thickness of the banknote(s) fed.
  • This displacement is sensed by two sensors located over each end of the follower roller, the sensors transforming said displacement into corresponding voltage, the said voltage being increased when the thickness of the banknote(s) inserted increases.
  • the increase in the voltage from the sensors reveals the existence of a double feeding or an overlap of banknotes.
  • the same method may be used to detect tape or any other adhesive element to the banknotes.
  • the object of the present invention is to solve the aforementioned problem and to provide a sheet thickness detecting apparatus capable of accurately detecting the slight prominence even when the detecting roller insufficiently rides on the tape or the other paper adhered on the sheet when the sheet passes through the detecting roller.
  • the aforementioned object of the present invention can be achieved by the following apparatus.
  • the apparatus has reference rollers disposed on a drive shaft, and detecting rollers capable of rotating depending on the reference rollers by contacting with an outer ring of the reference rollers.
  • the apparatus is configured to detect the thickness of a sheet by the amount of displacement of the detecting rollers at the time when the sheet is fed through between both rollers; and detection of the presence or absence of a slight blunt prominence on the sheet is performed with addition of the displacements of the detecting rollers.
  • each detecting roller is made of a cylindrical hard member, and an elastic member is interposed between the hard member and a rotary shaft of the detecting roller.
  • a plurality of detecting rollers are provided. Detection of the presence or absence of the slight blunt prominence on the sheet is performed with the displacement of each of said detecting rollers, and also performed with addition of the displacements of the detecting rollers adjacent to each other.
  • the aforementioned object of the present invention can also be achieved by the following apparatus.
  • the apparatus also has reference rollers disposed on a drive shaft, and detecting rollers capable of rotating depending on the reference rollers by contacting with an outer ring of the reference rollers.
  • the apparatus is configured to detect the thickness of a sheet by the amount of displacement of the detecting rollers at the time when the sheet is fed through between both rollers.
  • the apparatus is further configured to obtain the height of a slight blunt prominence on the sheet by subtracting the previously stored thickness of the sheet from the displacement of each of the detecting rollers, and perform detection of the presence or absence of the slight blunt prominence with addition of the heights of slight blunt prominences obtained from the displacements of the adjacent detecting rollers.
  • the aforementioned object of the present invention can also be achieved by the following arrangement.
  • the apparatus performs double detections of the presence or absence of the slight blunt prominence on the sheet.
  • One detection of the presence or absence of the slight blunt prominence is performed based on the displacement of each of the detecting rollers.
  • Another detection of the presence or absence of the slight blunt prominence is performed based on the addition of the heights of the slight blunt prominences obtained from the displacements of adjacent detecting rollers.
  • the aforementioned object of the present invention can also be achieved by the following apparatus.
  • the apparatus has also reference rollers disposed on a drive shaft, and detecting rollers capable of rotating depending on the reference rollers by contacting with an outer ring of the reference rollers.
  • the sheet thickness detecting apparatus is configured to detect the thickness of a sheet by the amount of displacement of the detecting rollers at the time when the sheet is fed through between both rollers.
  • the apparatus is further configured to differentiate the amount of displacement obtained with addition of the position-by-position bill displacements of the adjacent detecting rollers, and detect the height of a slight blunt prominence on the sheet based on the differentiated value.
  • the aforementioned object of the present invention can also be achieved by the following arrangement.
  • the detection of the presence or absence of the slight blunt prominence on the sheet is performed with the displacement of each of the detecting rollers. And furthermore the height of the slight blunt prominence on the sheet is detected based on the differentiated value.
  • the aforementioned object of the present invention can also be achieved by the following apparatus.
  • the apparatus has also a reference roller provided on a drive shaft, and a detecting roller capable of rotating depending on the reference roller by contacting with an outer ring of the reference roller.
  • the apparatus is configured to detect the thickness of a sheet by the amount of displacement of the detecting roller at the time when the sheet is fed through between both rollers.
  • the apparatus is further configured to detect first and second displacements at both sides of the outer ring, obtain the heights of first and second slight blunt prominences on the sheet by subtracting the previously stored thickness of the sheet from the first and second displacements. And it detects the height of a slight blunt prominence on the sheet from the detecting roller inclination obtained by subtracting the heights of the first and second slight blunt prominences.
  • the aforementioned object of the present invention can also be achieved by the following arrangement.
  • the apparatus is further configured to detect the sheet having the slight blunt prominence from the first and second displacements at the both sides of the outer ring. And furthermore it detects the height of a slight blunt prominence on said sheet from the detecting roller inclination obtained by subtracting the heights of the first and second slight blunt prominences, which are obtained by subtracting the previously stored thickness of the sheet from the first and second displacements.
  • the aforementioned object of the present invention can also be achieved by the following arrangement.
  • the roller inclination is the value obtained by addition of the inclinations of the adjacent detecting rollers.
  • the aforementioned object of the present invention can also be achieved by the following apparatus.
  • the apparatus has also a reference roller provided on a drive shaft, and a detecting roller capable of rotating depending on the reference roller by contacting with an outer ring of the reference roller.
  • the apparatus is configured to detect the thickness of a sheet by the amount of displacement of the detecting roller at the time when the sheet is fed through between both rollers.
  • the apparatus is further configured to detect the height of a slight blunt prominence on the sheet by detecting light projected in the direction of the rotary shaft of the detecting roller and by obtaining the displacement of the detecting roller based on the projected light.
  • the aforementioned object of the present invention can also be achieved by the apparatus.
  • the apparatus has also a reference roller provided on a drive shaft, and a detecting roller capable of rotating depending on the reference roller by contacting with an outer ring of the reference roller.
  • the apparatus is configured to detect the thickness of a sheet by the amount of displacement of the detecting roller at the time when the sheet is fed through between both rollers.
  • the apparatus is further configured to make doubly sure of detection of the sheet having a slight blunt prominence, by detecting the sheet having a slight blunt prominence based on the detecting roller displacement, and also detecting the sheet having a slight blunt prominence based on detection of the inclination of the detecting roller in the direction of the rotary shaft.
  • the present invention provides a bill handling machine, suitable for use as an automatic cash handling machine, capable of high-precision detection of overlapped sheet feeding in which bills more than or equal to two bills fed at one time, and altered bills with a tape or the other paper.
  • Fig. 1 shows an embodiment of the sheet thickness detecting apparatus of the present invention.
  • the thickness detector of Fig. 1 is comprised of the following components: a reference roller shaft 2 driven by a drive device (not illustrated); reference rollers 1a and 1b disposed on the reference roller shaft 2 as a drive shaft; and detecting rollers 5a and 5b disposed on a detecting roller shaft 6.
  • the detecting rollers 5a and 5b are respectively pressed toward the reference rollers 1a and 1b to rotate with their shaft 6 depending on the rotation of the reference rollers 1a and 1b.
  • the thickness detector has displacement sensors 9a and 9b such as eddy-current displacement sensors for detecting the movement of the detecting rollers that move upward in response to the thickness of the sheet.
  • the detecting rollers 5a and 5b has respectively outer rings 8 made of a cylindrical member such a metal.
  • a soft elastic member 7 such as a rubber is filled between the outer ring 8 and detecting roller shaft 6.
  • the elastic member 7 and outer ring 8 can be either bonded or non-bonded.
  • the determination unit 11 checks the detection information 10a and 10b and the position information 13 as to the skew (skew in the bill conveying direction) and shift (shift in direction orthogonal to the bill conveying direction) when the bill has passed through the detecting roller. As the results of checking those information, the determination unit 11 determines whether overlapped bills more than or equal to two sheets has been fed, or whether the altered bill with tape has been fed. Then the determination information 12 is outputted.
  • the position information 13 is used to correct the bill detection information that has detected the bill with a skew into the one free from the skew, and to find out the position where the bill 3 has passed through the detecting roller. It also indicates the existence of the tape 4 on the bill 3 when the tape 4 is adhered to the bill. In Fig 1 , the bill 3 is fed in the direction vertical to the surface of the drawing sheet.
  • Fig. 1 is shows a state where the respective detecting rollers 5a and 5b insufficiently ride on both sides of the tape 4 when the sheet passes through the rollers 5a and 5b, and the respective elastic members don't shrink evenly; therefore, the detecting rollers 5a and 5b is tilting in the direction of rotary shaft.
  • the output of the displacement sensors 9a and 9b is smaller than the value obtained by addition of the thickness of tape 4 to the thickness of the bill 3.
  • the displacement output conforms to the distance between the detection center of the sensor and the outer ring.
  • Fig. 2 shows the changes in the displacement detection information 15 and 19 from the displacement sensors 9a and 9b when the altered bill with tape has passed through the detecting rollers 5a and 5b shown in Fig. 1 .
  • the vertical axis indicates outputs of the displacement sensors.
  • the horizontal axis denotes the distance of bill movement.
  • Reference numerals 16 and 20 denote the displacement outputs corresponding to the bill section.
  • Reference numerals 17 and 21 denote the displacement outputs corresponding to the tape section.
  • the displacement addition information 23 is information obtained by addition of the displacement detection information 15 and 19.
  • reference numerals 24 and 25 indicate the addition outputs corresponding to the bill section and tape section by addition of the displacement detection information
  • 18, 22 and 26 indicate the threshold value for determination processing.
  • these threshold values are selected from the data stored in advance in response to the position where the bill passes through the detecting roller. If the displacement detection information 15 and 19 and the displacement addition information 23 are equal to or greater than the threshold values, the determination unit determines that a tape is present. If they are less than the threshold values, the unit determines that a tape is not present.
  • Fig. 3 shows the tape thickness information 29 obtained by the following point-plotting technique. For every passage points where the right side of the tape 4 adhered to the bill 3 has passed through the any one detecting roller shown in Fig. 1 , the thickness of the tape 4 is calculated by subtracting the thickness of the bill at the passage point from the detection information of the displacement sensor. The calculated tape thickness information is plotted for the every passage points.
  • numerals 36 and 37 denote the right and left sides of the reference roller 1a shown in Fig. 1 .
  • 38 and 39 denote the right and left sides of the reference roller 1b.
  • the tape thickness information 31 indicates the thickness of the tape 4 detected by the displacement sensor 9a.
  • the tape thickness information 32 indicates the thickness of the tape 4 detected by the displacement sensor 9b.
  • a numeral 33 indicates the state where the respective detecting rollers 5a and 5b insufficiently ride on both sides of the tape 4. In the state 33, the respective detecting rollers are tilted and smaller value than actual thickness has been detected as the thickness of the tape 4. The smaller value is outputted from each displacement sensors.
  • the tape thickness addition information 30 indicates the thickness of the tape obtained by addition of the tape thicknesses 31 and 32 obtained from the adjacent displacement sensors 9a and 9b.
  • Reference numeral 34 denotes the threshold value for determination processing. If the tape thickness information 31 and 33 and tape thickness addition information 30 are equal to or greater than the threshold value 34, then the processing determines that a tape is present. If not, the processing determines that a tape is not present.
  • Fig. 4 shows the waveform of the tape thickness information obtained by subtracting the bill thickness for every passage, from the displacement detection information of the respective displacement sensors.
  • tape thickness information 40 denotes the waveform obtained by subtracting the bill thickness for every passage position from the displacement detection information detected by the displacement sensor 9a.
  • the tape thickness waveform 41 denotes the waveform obtained by subtracting the bill thickness for every passage position of from the displacement detection information detected by the displacement sensor 9b.
  • the tape thickness addition information 42 indicates the waveform obtained by addition of the tape thicknesses 40 and 41 obtained from the adjacent displacement sensors 9a and 9b.
  • Reference numerals 17, 21 and 24 indicate the waveform showing the thickness of the tape section.
  • Numeral 34 shows the threshold value for determination processing. If the tape thickness information 40 and 41 and tape thickness addition information 42 indicate the values equal to or greater than the threshold value 34, the processing determines that a tape is present. If not, the processing determines that a tape is not present.
  • each of their values does not exceed the determination threshold values 34, so that the presence of a tape can be not detected.
  • each of their values does not exceed the determination threshold values 34, so that the presence of a tape can be not detected.
  • the presence of a tape can be detected. Because the tape detection information at the tape section is enlarged with the addition, even when the respective detecting rollers 5a and 5b insufficiently ride on both sides of the tape 4 when the sheet passes through the rollers 5a and 5b, and even when the detecting rollers 5a and 5b has tilted. This advantage is provided by the present invention.
  • the presence of a tape can be detected. Because the tape detection information at the tape section is enlarged with the addition, even when the respective detecting rollers 5a and 5b insufficiently ride on both sides of the tape 4 when the sheet passes through the rollers 5a and 5b, and even when the detecting rollers 5a and 5b has tilted.
  • the presence of a tape can be detected. Because the tape detection information at the tape section is enlarged with the addition, even when the respective detecting rollers 5a and 5b insufficiently ride on both sides of the tape 4 when the sheet passes through the rollers 5a and 5b, and even when the detecting rollers 5a and 5b has tilted.
  • Fig. 5 shows another embodiment of the method of determining the tape adhered on the bill in the determination unit 11.
  • the tape thickness differentiation information 43 shows the information as a result of differentiating the tape thickness addition information 42 of Fig. 4 .
  • Reference numerals 44 and 45 indicate the threshold values for determination processing. If the absolute value of the tape thickness differentiation information 43 is equal to or greater than the threshold value 44 (absolute value of threshold value 44: the value is equal to threshold value 45), the processing determines that a tape is present. If not, the processing determines that a tape is present.
  • the presence of a tape can be detected. Because the differentiation information at the tape section is enlarged with the addition, even when the respective detecting rollers 5a and 5b insufficiently ride on both sides of the tape 4 when the sheet passes through the rollers 5a and 5b, and even when the detecting rollers 5a and 5b has tilted.
  • the present invention described above refers to the method where the presence of tape is detected from the following information: the information obtained by the addition of adjacent displacement thickness detection information; the information obtained by the addition of adjacent tape thickness information; and the information obtained by the differentiation of their addition information.
  • An altered bill can also be detected by a combination of the two of the results of determination based on the displacement detection information detected for each detecting roller, the information obtained by the addition of adjacent displacement thickness detection information, the information obtained by the addition of adjacent tape thickness information, and the information obtained by the differentiation of the addition of adjacent tape thickness information.
  • the present invention described above refers to the application in the case where one displacement sensor is used for one detecting roller.
  • a plurality of displacement sensors can also be used for one detecting roller, as shown in Fig. 6 .
  • Fig. 6 shows a further embodiment of a sheet thickness detecting apparatus wherein two displacement sensors are used for one detecting roller.
  • the sheet thickness detecting apparatus of Fig. 6 has the same arrangement as that of Fig. 1 , except that the displacement sensors 54a, 54b, 54c and 54d are used to detect the displacement on both sides of the outer ring 53 of the detecting rollers 50a and 50b, whereby the sheet thickness is detected.
  • detecting rollers 50a and 50b is disposed on a detecting roller shaft 51.
  • the detecting rollers 50a and 50b are respectively pressed toward the reference rollers 1a and 1b to rotate with their shaft 51 depending on the rotation of the reference rollers 1a and 1b.
  • the thickness detector has displacement sensors 54a, 54b and 54c, 54d such as eddy-current displacement sensors for detecting the movement of the detecting rollers that move upward in response to the thickness of the sheet.
  • the detecting rollers 50a and 50b has respectively outer rings 53 made of a metallic or other cylindrical member.
  • Soft elastic members 52a and 52b such as a rubber filled between both inner sides of each outer ring 53 and detecting roller shaft 51, in a separate form.
  • the elastic members 52a and 52b and outer ring 53 can be either bonded or non-bonded.
  • the detection information is sent to the determination unit 55.
  • the determination unit 55 checks the detection information and the position information 57 as to the skew (skew in the bill conveying direction) and shift (shift in direction orthogonal to the bill conveying direction) when the bill has passed through the detecting roller. As the results of checking those information, the determination unit 11 determines whether overlapped bills more than or equal to two sheets has been fed, or whether the altered bill with tape has been fed. Then the determination information 56 is outputted.
  • the position information 56 is used to correct the detection information that there is no skew, and to find out the position where the bill has passed through the detecting roller. It also indicates the existence of the tape 4 on the bill 3 when the tape 4 is adhered to the bill. In Fig 6 , the bill 3 is fed in the direction vertical to the surface of the drawing sheet.
  • Fig. 6 shows a state where the respective detecting rollers 50a and 50b insufficiently ride on both sides of the tape 4 when the sheet passes through the rollers 50a and 50b, and the respective elastic members don't shrink evenly; therefore, the detecting rollers 50a and 50b is tilting in the direction of rotary shaft.
  • the output of the displacement sensors 9a and 9b is smaller than the value obtained by addition of the thickness of tape 4 to the thickness of the bill 3.
  • the displacement output conforms to the distance between the detection center of the sensor and the outer ring.
  • Fig. 7 shows the tape thickness information obtained by the following point-plotting technique. For every passage points where the right side of the tape 4 adhered to the bill 3 has passed through the any one detecting roller shown in Fig. 6 , the thickness of the tape 4 is calculated by subtracting the thickness of the bill at the passage point from the detection information of the displacement sensor. The calculated tape thickness information is plotted for the every passage points.
  • numerals 69 and 70 denote the right and left sides of the reference roller 1a.
  • 71 and 72 denote the right and left sides of the reference roller 1b.
  • the tape thickness information 61 indicates the thickness of the tape 4 detected by the displacement sensor 54a.
  • the tape thickness information 62 indicates the thickness of the tape 4 detected by the displacement sensor 54b.
  • the tape thickness information 63 indicates the thickness of the tape 4 detected by the displacement sensor 54c.
  • the tape thickness information 64 indicates the thickness of the tape 4 detected by the displacement sensor 54d.
  • the numeral 59 indicates the threshold value for determination processing.
  • the processing determines that a tape is present. If not, the processing determines that a tape is present.
  • a numeral 67 indicates the state where the respective detecting rollers 50a and 50b insufficiently ride on both sides of the tape 4. In the state 67, the respective detecting rollers are tilted and smaller value than actual thickness has been detected as the thickness of the tape 4. The smaller value is outputted from each displacement sensors.
  • the roller tilt information 60 indicates the tilt of the roller.
  • the roller tilt information 65 indicates the absolute value calculated by subtracting the tape thickness information 61 from the tape thickness information 62.
  • the information 61 and 62 is obtained from the adjacent displacement sensors 54a and 54b.
  • the information 65 indicates the tilt of the roller 50a.
  • the roller tilt information 66 indicates the absolute value calculated by subtracting the tape thickness information 63 from the tape thickness information 64.
  • the information 62 and 64 is obtained from the adjacent displacement sensors 54c and 54d.
  • the information 66 indicates the tilt of the roller 50b.
  • Numeral 68 denotes the threshold value for the determination processing. If the roller tilt information 65 and 67 become the values equal to or greater than the threshold value 68, the processing determines that a tape is present. If not, the processing determines that a tape is not present.
  • the roller tilt addition information 73 indicates the value obtained by addition of the adjacent roller tilt information 65 and 66.
  • the numeral 74 indicates the threshold value for determination processing. If the roller tilt addition information 73 becomes a value equal to or greater than the threshold value 74, the processing determines that a tape is present, because the roller exhibits a greater tilt. If not, the processing determines that a tape is not present.
  • the present invention by using the tape thickness information 61, 62, 63 and 64, and the roller tilt information 65 and 67, the presence of a tape can be detected, even when the respective detecting rollers 5a and 5b insufficiently ride on both sides of the tape 4 when the sheet passes through the rollers 5a and 5b, and even when the detecting rollers 5a and 5b has tilted.
  • the presence of a tape can be detected by using a combination of the results of determination based on the tape thickness information 61, 62, 63 and 64 and roller tilt addition information 73, even if the tape 4 has passed through any position of the detecting roller.
  • Fig. 8 shows a still further embodiment of a sheet thickness detecting apparatus.
  • the sheet thickness detecting apparatus of Fig. 8 has the same arrangement as that of Fig. 1 , except that the optical sensors are used as the displacement sensors for detecting the displacement of the detecting rollers 5a and 5b.
  • the displacement sensor is comprised of a light-emitting device 76, a photo-receiver 78, a light-emitting device 79 and a photo-receiver 81. They are arranged opposite to each other in such a way that the upper portions of the detecting rollers 5a and 5b will cut off a part of the strip rays 77 and 80. The strip rays from the light-emitting device are detected by the photo-receiver. The displacement is detected according to the amount of light received or the light receiving position of the linearly arranged light receiving element. Thus, in the present invention, the displacement of each detecting roller is detected by detection of the projection light of the detecting roller, whereby the thickness of the sheet is detected.
  • the maximum displacement of a plurality of detecting rollers can be detected by arranging a pair of light light-emitting device and photo-receiver face to face with each other, wherein these rollers are placed in-between.
  • the present invention ensures high-precision tape detection.
  • Fig. 9 shows a still further embodiment of the sheet thickness detecting apparatus.
  • the sheet thickness detecting apparatus of Fig. 9 has the same arrangement as that in Fig. 1 , except that electrostatic capacitance type displacement sensors 85 and 86 for detecting the tilt of the detecting rollers 5a and 5b in the direction of the rotary shaft.
  • the electrostatic capacitance type displacement sensors 85 and 86 are used to detect the electrostatic capacitance between the electrodes 88 and 87. When the detecting roller has tilted, a change occurs in the distance between the detecting roller and electrode. This is detected as a change in the electrostatic capacitance.
  • Fig. 10 shows an example of the embodiment of an automated teller machine having the sheet thickness detecting apparatus of the present invention.
  • a bill handling machine 90 in the automated teller machine is comprised of:
  • the bill validation apparatus 97 determines if each bill is altered or not. It also determines if one bill or more than one bills is fed at one time. When determining that the bill is not altered and one bill is fed at one time or the bill is folded one, it is placed in the temporary stacker 93 and the amount of transaction is displayed. If the bill(s) having been put into the machine has any problem, all of them are returned to the bill deposit/payment mechanism 91.
  • the bills are fed to the bill validation apparatus 97 again, wherein a check is made to see if one or more than one bill is fed at one time. Then the bills are stored into the storage case for each denomination.
  • bills 96b stored in the denomination storage case 95 are fed to the conveying path 92b by the specified amount while being separated into one by one.
  • the bill validation apparatus 97 checks if one bill or more than one bill is fed at one time. When the bills are separated into one by one, they are fed to the bill reception/payment section 91 one by one.
  • the bill validation apparatus 97 is designed to perform its function in either of forward and reverse bill-conveying directions.
  • the bill validation apparatus with the sheet thickness detecting apparatus of the present invention, it makes possible to detect with high-precision the overlapped sheet-feeding where bills more than one sheet are fed, or altered bills with tape, other paper or the like.
  • the aforementioned description refers mainly to the case where an eddy current type displacement sensor is used as a displacement sensor. It is also possible to use an electrostatic capacitance type displacement sensor, optical displacement sensor or contact type displacement sensor. The aforementioned description also refers to the sheet thickness detecting apparatus used in the automated teller machine. It also can be used as a sheet thickness detecting apparatus of an automatic vendor.
  • 1a, 1b Reference roller
  • 2 Reference roller shaft
  • 3 Bills
  • 4 Tape
  • 5a, 5b Detecting roller
  • 6 Detecting roller shaft
  • 7 Elastic member
  • 8 Outer ring
  • 9a, 9b Displacement sensor
  • 10a, 10b detection information
  • 11 Determination unit
  • 12 Determination information
  • 13 Position information as to skew.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
EP05751338A 2004-06-18 2005-06-17 Thickness detector for paper sheet and paper money handling device Expired - Fee Related EP1764751B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004180399A JP4444738B2 (ja) 2004-06-18 2004-06-18 紙葉類の厚さ検出装置
PCT/JP2005/011165 WO2005124702A1 (ja) 2004-06-18 2005-06-17 紙葉類の厚さ検出装置及び紙幣取扱装置

Publications (3)

Publication Number Publication Date
EP1764751A1 EP1764751A1 (en) 2007-03-21
EP1764751A4 EP1764751A4 (en) 2011-03-23
EP1764751B1 true EP1764751B1 (en) 2012-10-24

Family

ID=35509933

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05751338A Expired - Fee Related EP1764751B1 (en) 2004-06-18 2005-06-17 Thickness detector for paper sheet and paper money handling device

Country Status (6)

Country Link
EP (1) EP1764751B1 (ko)
JP (1) JP4444738B2 (ko)
KR (1) KR100769374B1 (ko)
CN (1) CN1820286B (ko)
TW (1) TWI273516B (ko)
WO (1) WO2005124702A1 (ko)

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WO2020117828A1 (en) * 2018-12-03 2020-06-11 Crane Payment Innovations, Inc. Document transport path without idler rollers
EP4007732A4 (en) * 2019-10-25 2023-04-26 Hewlett-Packard Development Company, L.P. SKIP DETECTION
US11734983B1 (en) 2018-12-18 2023-08-22 Cummins-Allison Corp. Banknote transport mechanisms and methods

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US20080112460A1 (en) * 2006-11-14 2008-05-15 Ncr Corporation Detecting intaglio print
JP4527752B2 (ja) 2007-06-22 2010-08-18 日立オムロンターミナルソリューションズ株式会社 紙葉類識別装置及びそのセンサ部
CN101754919B (zh) * 2007-07-26 2011-12-07 富士通株式会社 纸张厚度检测装置
JP4924334B2 (ja) * 2007-09-28 2012-04-25 沖電気工業株式会社 媒体厚み検知装置
JP2009129390A (ja) * 2007-11-28 2009-06-11 Oki Electric Ind Co Ltd 媒体鑑別装置
JP4673393B2 (ja) * 2008-06-05 2011-04-20 日立オムロンターミナルソリューションズ株式会社 紙葉類取扱装置及び方法
JP4616901B2 (ja) * 2008-06-20 2011-01-19 日立オムロンターミナルソリューションズ株式会社 搬送ローラ、および厚さ検知ユニット
JP2010257292A (ja) 2009-04-27 2010-11-11 Hitachi Omron Terminal Solutions Corp 媒体厚み検知装置
JP5299153B2 (ja) * 2009-07-31 2013-09-25 沖電気工業株式会社 紙葉類判定装置
CN102222383A (zh) * 2010-04-16 2011-10-19 上海古鳌电子科技股份有限公司 测定微量厚度变化的多点纸币测量装置及其测量方法
JP5487035B2 (ja) * 2010-07-22 2014-05-07 日立オムロンターミナルソリューションズ株式会社 紙葉類の厚さ検出装置及び紙幣取扱装置
JP5593247B2 (ja) * 2011-02-01 2014-09-17 日立オムロンターミナルソリューションズ株式会社 媒体厚み検出装置
JP5450512B2 (ja) * 2011-05-27 2014-03-26 日立オムロンターミナルソリューションズ株式会社 厚み検出装置および検知ローラ
CN103363887A (zh) * 2012-04-11 2013-10-23 北京华夏聚龙自动化股份公司 一种新型的材料厚度测量方法
US9284144B2 (en) 2014-01-29 2016-03-15 Crane Payment Innovations, Inc. Validator with a dynamic document path height
CN104408819B (zh) * 2014-12-05 2017-06-13 深圳怡化电脑股份有限公司 一种纸币上胶带的检测方法
CN105069896B (zh) * 2015-08-06 2018-07-24 广州广电运通金融电子股份有限公司 一种薄片介质的厚度检测装置及金融自助设备
CN105318820A (zh) * 2015-11-05 2016-02-10 威海华菱光电股份有限公司 厚度传感器
CN105333809A (zh) * 2015-12-04 2016-02-17 威海华菱光电股份有限公司 厚度检测传感器
CN106056749A (zh) * 2016-07-15 2016-10-26 深圳怡化电脑股份有限公司 一种纸币检测装置
US20180172422A1 (en) * 2016-12-16 2018-06-21 Climax Machine Industry Co., Ltd Device for detecting thickness and thickness variation of a sheetlike object
CN106952390B (zh) * 2017-02-16 2019-12-10 深圳怡化电脑股份有限公司 纸币鉴伪装置和纸币鉴伪方法及金融自助交易设备
CN106898080B (zh) * 2017-03-22 2023-01-13 深圳怡化电脑股份有限公司 厚度检测装置及金融设备
CN108663004B (zh) * 2017-03-29 2020-04-28 深圳怡化电脑股份有限公司 一种纸币厚度异常的检测方法及装置
CN107326717B (zh) * 2017-07-12 2019-05-28 东莞福迈包装印刷有限公司 一种可以检测纸张厚度的造纸机
WO2021166116A1 (ja) * 2020-02-19 2021-08-26 富士通フロンテック株式会社 紙葉類取扱プログラム及び紙葉類取扱装置

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GB2150297B (en) * 1983-11-21 1987-07-29 Ncr Co Apparatus for indicating the thickness of sheets
JPH0353122Y2 (ko) * 1985-02-25 1991-11-20
JP3753916B2 (ja) * 2000-03-16 2006-03-08 日立オムロンターミナルソリューションズ株式会社 紙葉類計数装置
JP4031962B2 (ja) * 2002-08-26 2008-01-09 日立オムロンターミナルソリューションズ株式会社 紙葉類厚さ検知装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020117828A1 (en) * 2018-12-03 2020-06-11 Crane Payment Innovations, Inc. Document transport path without idler rollers
US11734983B1 (en) 2018-12-18 2023-08-22 Cummins-Allison Corp. Banknote transport mechanisms and methods
EP4007732A4 (en) * 2019-10-25 2023-04-26 Hewlett-Packard Development Company, L.P. SKIP DETECTION
US11947302B2 (en) 2019-10-25 2024-04-02 Hewlett-Packard Development Company, L.P. Skew detection

Also Published As

Publication number Publication date
WO2005124702A1 (ja) 2005-12-29
KR100769374B1 (ko) 2007-10-22
JP4444738B2 (ja) 2010-03-31
EP1764751A4 (en) 2011-03-23
KR20060030522A (ko) 2006-04-10
EP1764751A1 (en) 2007-03-21
TWI273516B (en) 2007-02-11
CN1820286B (zh) 2014-10-29
CN1820286A (zh) 2006-08-16
TW200620164A (en) 2006-06-16
JP2006004206A (ja) 2006-01-05

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