EP1764751A1 - Thickness detector for paper sheet and paper money handling device - Google Patents
Thickness detector for paper sheet and paper money handling device Download PDFInfo
- Publication number
- EP1764751A1 EP1764751A1 EP05751338A EP05751338A EP1764751A1 EP 1764751 A1 EP1764751 A1 EP 1764751A1 EP 05751338 A EP05751338 A EP 05751338A EP 05751338 A EP05751338 A EP 05751338A EP 1764751 A1 EP1764751 A1 EP 1764751A1
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- EP
- European Patent Office
- Prior art keywords
- sheet
- detecting
- rollers
- thickness
- roller
- 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.)
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 129
- 238000001514 detection method Methods 0.000 claims abstract description 67
- 230000004044 response Effects 0.000 abstract description 7
- 230000004069 differentiation Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000010200 validation analysis Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
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- 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 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 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.
- Fig. 1 shows an embodiment of the sheet thickness detecting apparatus of the present invention.
- 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 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.
- 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 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 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 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.
- 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)
Abstract
Description
- The present invention relates to a sheet thickness detecting apparatus for detecting altered sheets.
- In bill handling machines such as an automated teller machine, automatic vendor or the like, it is of important to identify bills altered by using a tape, the other paper or the like. A bill identification apparatus is provided for this purpose.
- Especially in recent years, such alteration techniques have become increasingly sophisticated, and bills, securities, stamps and checks altered by using a tape, paper or label are in circulation on the market.
- The previous apparatus for identifying altered bills with a tape, paper or the like is disclosed in
Japanese utility model publication No. 6 (A.D. 1994)-49442 - 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 - In the apparatus described in the aforementioned Patent Document 1, 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 detecting roller tilts toward the rotary shaft due to uneven shrinkage of the elastic member. Consequently, it may be possible not to accurately detect the slight prominence caused by the adhered tape or the adhered paper on the sheet.
- 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.
- The aforementioned object of the present invention can also be achieved by the following arrangement. The outer ring of 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.
- The aforementioned object of the present invention can also be achieved by the following arrangement. 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.
- The following describes embodiments of the present invention with reference to drawings.
- 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 reference roller shaft 2 as a drive shaft; and detectingrollers roller shaft 6. The detectingrollers reference rollers shaft 6 depending on the rotation of thereference rollers displacement sensors - The detecting
rollers outer rings 8 made of a cylindrical member such a metal. A softelastic member 7 such as a rubber is filled between theouter ring 8 and detectingroller shaft 6. Theelastic member 7 andouter ring 8 can be either bonded or non-bonded. Thus, when a bill 3 (sheet) becomes caught between thereference rollers roller elastic member 7 is deformed by the thickness of the sheet and theouter ring 8 moves upward. This displacement is detected by thedisplacement sensors detection information detection information determination unit 11. Thedetermination unit 11 checks thedetection information 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, thedetermination 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 thedetermination information 12 is outputted. - Additionally, 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 thebill 3 has passed through the detecting roller. It also indicates the existence of thetape 4 on thebill 3 when thetape 4 is adhered to the bill. In Fig 1, thebill 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 tape 4 when the sheet passes through therollers rollers displacement sensors tape 4 to the thickness of thebill 3. In this case, the displacement output conforms to the distance between the detection center of the sensor and the outer ring. - Although the aforementioned description refers to the two sets of reference rollers and detecting rollers, in actuality a plurality of reference rollers and detecting rollers are arranged to detect the entire surface of the bill.
- Referring to Figs. 2, 3 and 4, the following describes how to check the tape adhered to the bill in the determination unit 11:
- Fig. 2 shows the changes in the
displacement detection information displacement sensors rollers - In Fig. 2, the vertical axis indicates outputs of the displacement sensors. The horizontal axis denotes the distance of bill movement.
Reference numerals Reference numerals displacement addition information 23 is information obtained by addition of thedisplacement detection information reference numerals - Since the thickness of the bill differs according to position, 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 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 thetape 4 adhered to thebill 3 has passed through the any one detecting roller shown in Fig. 1, the thickness of thetape 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. - In Fig. 3,
numerals reference roller 1a shown in Fig. 1. Similarly, 38 and 39 denote the right and left sides of thereference roller 1b. Thetape thickness information 31 indicates the thickness of thetape 4 detected by thedisplacement sensor 9a. Thetape thickness information 32 indicates the thickness of thetape 4 detected by thedisplacement sensor 9b. A numeral 33 indicates the state where the respective detectingrollers tape 4. In thestate 33, the respective detecting rollers are tilted and smaller value than actual thickness has been detected as the thickness of thetape 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 theadjacent displacement sensors -
Reference numeral 34 denotes the threshold value for determination processing. If thetape thickness information thickness addition information 30 are equal to or greater than thethreshold 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.
- In Fig. 4,
tape thickness information 40 denotes the waveform obtained by subtracting the bill thickness for every passage position from the displacement detection information detected by thedisplacement sensor 9a. Thetape thickness waveform 41 denotes the waveform obtained by subtracting the bill thickness for every passage position of from the displacement detection information detected by thedisplacement sensor 9b. Further, the tapethickness addition information 42 indicates the waveform obtained by addition of the tape thicknesses 40 and 41 obtained from theadjacent displacement sensors -
Reference numerals Numeral 34 shows the threshold value for determination processing. If thetape thickness information thickness addition information 42 indicate the values equal to or greater than thethreshold value 34, the processing determines that a tape is present. If not, the processing determines that a tape is not present. - As described above, when the detecting
rollers displacement detection information displacement detection information - Similarly, for the
tape thickness information - Similarly, for the
tape thickness information - However if using the
displacement addition information 23 obtained by addition of thedisplacement detection information adjacent displacement sensors rollers tape 4 when the sheet passes through therollers rollers - Similarly, if using the tape
thickness addition information 30 obtained by addition of thetape thickness information displacement sensors rollers tape 4 when the sheet passes through therollers rollers - Similarly, if using the tape
thickness addition information 42 obtained by addition of thetape thickness information displacement sensors rollers tape 4 when the sheet passes through therollers rollers - Fig. 5 shows another embodiment of the method of determining the tape adhered on the bill in the
determination unit 11. - In Fig. 5, the tape
thickness differentiation information 43 shows the information as a result of differentiating the tapethickness addition information 42 of Fig. 4.Reference numerals 44 and 45 indicate the threshold values for determination processing. If the absolute value of the tapethickness 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 same result is obtained by differentiating the
displacement addition information 23 obtained by addition of the adjacent displacement detection information of Fig. 2. - According to this embodiment, by using the tape
thickness differentiation information 43 based on the tapethickness addition information 42 of thetape thickness information displacement sensors rollers tape 4 when the sheet passes through therollers rollers - Further, 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. However, 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 outer ring 53 of the detectingrollers - That is, detecting
rollers roller shaft 51. The detectingrollers reference rollers shaft 51 depending on the rotation of thereference rollers displacement sensors - The detecting
rollers outer rings 53 made of a metallic or other cylindrical member. Softelastic members outer ring 53 and detectingroller shaft 51, in a separate form. Theelastic members outer ring 53 can be either bonded or non-bonded. Thus, when a sheet becomes caught between thereference rollers rollers elastic members outer ring 53 moves upward. This displacement is detected by thedisplacement sensors - The detection information is sent to the
determination unit 55. Thedetermination unit 55 checks the detection information and theposition 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, thedetermination 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 thedetermination information 56 is outputted. Theposition 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 thetape 4 on thebill 3 when thetape 4 is adhered to the bill. In Fig 6, thebill 3 is fed in the direction vertical to the surface of the drawing sheet. - Fig. 6 shows a state where the respective detecting
rollers tape 4 when the sheet passes through therollers rollers displacement sensors tape 4 to the thickness of thebill 3. In this case, 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 thebill 3 has passed through the any one detecting roller shown in Fig. 6, the thickness of thetape 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. - In Fig. 7,
numerals reference roller 1a. Similarly, 71 and 72 denote the right and left sides of thereference roller 1b. Thetape thickness information 61 indicates the thickness of thetape 4 detected by thedisplacement sensor 54a. Thetape thickness information 62 indicates the thickness of thetape 4 detected by thedisplacement sensor 54b. Thetape thickness information 63 indicates the thickness of thetape 4 detected by thedisplacement sensor 54c. Thetape thickness information 64 indicates the thickness of thetape 4 detected by thedisplacement sensor 54d. The numeral 59 indicates the threshold value for determination processing. - If the
tape thickness information threshold value 59, 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 tape 4. In thestate 67, the respective detecting rollers are tilted and smaller value than actual thickness has been detected as the thickness of thetape 4. The smaller value is outputted from each displacement sensors. - The
roller tilt information 60 indicates the tilt of the roller. Theroller tilt information 65 indicates the absolute value calculated by subtracting thetape thickness information 61 from thetape thickness information 62. Theinformation adjacent displacement sensors information 65 indicates the tilt of theroller 50a. Similarly, theroller tilt information 66 indicates the absolute value calculated by subtracting thetape thickness information 63 from thetape thickness information 64. Theinformation adjacent displacement sensors information 66 indicates the tilt of theroller 50b.Numeral 68 denotes the threshold value for the determination processing. If theroller tilt information 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 adjacentroller tilt information tilt addition information 73 becomes a value equal to or greater than thethreshold 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. - According to the present invention, by using the
tape thickness information roller tilt information rollers tape 4 when the sheet passes through therollers rollers - The presence of a tape can be detected by using a combination of the results of determination based on the
tape thickness information tilt addition information 73, even if thetape 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 - The displacement sensor is comprised of a light-emitting
device 76, a photo-receiver 78, a light-emittingdevice 79 and a photo-receiver 81. They are arranged opposite to each other in such a way that the upper portions of the detectingrollers - 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.
- As described above, the projected light of the detecting roller is detected, and this avoids deterioration of detection output even when the detecting roller is tilted. Thus, 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 rollers - The electrostatic capacitance
type displacement sensors electrodes - In the present invention, ever when the detecting rollers insufficiently ride on both sides of the tape and tilt, such states of the detecting rollers can be detected. Accordingly, this arrangement permits high-precision detection of the presence of a tape.
- Fig. 10 shows an example of the embodiment of an automated teller machine having the sheet thickness detecting apparatus of the present invention.
- In Fig. 10, a
bill handling machine 90 in the automated teller machine is comprised of: - a bill reception/
payment section 91, which separates depositedbills 96a into denomination for storing them at the time of cash being deposited, and pays the amount specified by a user at the time of cash payment; - a
bill conveying paths - an image sensor for detecting the design of the bills;
- a magnetic sensor for detecting the magnetic pattern of the bills;
- a bill identification apparatus, which is composed of a fluorescent sensor for detecting the fluorescence formed on each of the bill to identify the denomination of the bills and make an authentication of the bills;
- a
bill validation apparatus 97, which makes a an authentication of each of the bills by using the sheet thickness detecting apparatus of the present invention. The sheet thickness detecting apparatus is capable of detecting whether overlapped sheets more than or equal to two sheets has been fed or whether the bill has been altered by using a tape or the other paper, thereby authenticates the bill. Thebill handling machine 90 is further comprised of: atemporary stacker 93 for stacking bills on the temporary basis at the time of storing or paying bills; abill collection case 94 for storing the bills that cannot be handled by the machine; and adenomination storage case bills 96b for each denomination. - The following describes the operation of the aforementioned automated teller machine.
At the time of depositing thebills 96a, the bills put into the bill deposit/payment mechanism 91 are separated into one by one, and are fed to the conveyingpath 92a. Thebill 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 thetemporary 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. - When the transaction has been concluded, 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.
On the other hand, at the time of cash repayment,bills 96b stored in the denomination storage case 95 are fed to the conveyingpath 92b by the specified amount while being separated into one by one. In this conveying process, thebill 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. If overlapped bills more than one bill or folded bill(s) are detected, the detected bill is placed in the temporary stacker, and is then put into thebill collection case 94. Thebill validation apparatus 97 is designed to perform its function in either of forward and reverse bill-conveying directions. - According to the present invention, by using 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.
-
- Fig. 1 shows an embodiment of the sheet thickness detecting apparatus of the present invention;
- Fig. 2 shows the displacement detection information of Fig. 1 in the present invention, the displacement addition information obtained by addition of adjacent displacement thickness detection information, and the threshold value for tape identification;
- Fig. 3 shows the tape thickness detection information of Fig. 1 in the present invention, the tape thickness addition information obtained by addition of adjacent tape thickness detection information, and the threshold value for tape identification;
- Fig. 4 shows the tape thickness detection information of Fig. 1 in the present invention, the tape thickness detection information obtained by the addition of the adjacent tape thickness detection information, and the threshold value for tape identification;
- Fig. 5 shows the differentiation information of the tape thickness detection information gained by the addition of the adjacent tape thickness detection information of Fig. 1 in the present invention;
- Fig. 6 shows another embodiment of the sheet thickness detecting apparatus wherein two displacement sensors are provided on one detecting roller;
- Fig. 7 shows the tape thickness detection information of Fig. 6 in the present invention, the roller inclination information obtained by subtracting the adjacent tape thickness detection information , the roller inclination information obtained by adjacent roller inclination information, and the threshold value for tape identification;
- Fig. 8 shows a further embodiment of a sheet thickness detecting apparatus provided with the optical displacement sensor for detecting the projected light of the detecting roller in the present invention;
- Fig. 9 shows a still further embodiment of the sheet thickness detecting apparatus provided with the inclination sensor for detecting the inclination of the detecting roller in the present invention; and
- Fig. 10 shows an embodiment of the automatic cash handling apparatus in the sheet thickness detecting apparatus of the present invention.
- 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.
Claims (13)
- A sheet thickness detecting apparatus having reference rollers disposed on a drive shaft, and detecting rollers capable of rotating depending on said reference rollers by contacting with an outer ring of said reference rollers, and said sheet thickness detecting apparatus is configured to detect the thickness of a sheet by the amount of displacement of said detecting rollers at the time when said sheet is fed through between said both rollers,
wherein detection of the presence or absence of a slight blunt prominence on the sheet is performed with addition of the displacements of said detecting rollers. - The sheet thickness detecting apparatus described in Claim 1, wherein an outer ring of each detecting roller is made of a cylindrical hard member, and an elastic member is interposed between said hard member and a rotary shaft of said detecting roller.
- The sheet thickness detecting apparatus described in Claim 1, wherein a plurality of said detecting rollers are provided, detection of the presence or absence of said slight blunt prominence on said sheet is performed with the displacement of each of said detecting rollers, and also performed with addition of the displacements of said detecting rollers adjacent to each other.
- A sheet thickness detecting apparatus having reference rollers disposed on a drive shaft, and detecting rollers capable of rotating depending on said reference rollers by contacting with an outer ring of said reference rollers, and said sheet thickness detecting apparatus is configured to detect the thickness of a sheet by the amount of displacement of said detecting rollers at the time when said sheet is fed through between said both rollers; and
said sheet thickness detecting apparatus is further configured to obtain the height of a slight blunt prominence on said sheet by subtracting the previously stored thickness of said sheet from the displacement of each of said detecting rollers, and perform detection of the presence or absence of said slight blunt prominence with addition of said heights of slight blunt prominences obtained from the displacements of said adjacent detecting rollers. - The sheet thickness detecting apparatus described in Claim 4, wherein said sheet thickness detecting apparatus performs double detections of the presence or absence of said slight blunt prominence on said sheet, by performing detection of the presence or absence of said slight blunt prominence based on the displacement of each of said detecting rollers, and by performing detection of the presence or absence of said slight blunt prominence based on said addition of the heights of said slight blunt prominences obtained from the displacements of adjacent detecting rollers.
- A sheet thickness detecting apparatus having reference rollers disposed on a drive shaft, and detecting rollers capable of rotating depending on said reference rollers by contacting with an outer ring of said reference rollers, and said sheet thickness detecting apparatus is configured to detect the thickness of a sheet by the amount of displacement of said detecting rollers at the time when said sheet is fed through between said both rollers; and
said sheet thickness detecting 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 said sheet based on said differentiated value. - The sheet thickness detecting apparatus described in Claim 6, wherein the detection of the presence or absence of said slight blunt prominence on said sheet is performed with the displacement of each of said detecting rollers, and furthermore said height of the slight blunt prominence on said sheet is detected based on said differentiated value.
- A sheet thickness detecting apparatus having a reference roller provided on a drive shaft, and a detecting roller capable of rotating depending on said reference roller by contacting with an outer ring of said reference roller, and said sheet thickness detecting apparatus is configured to detect the thickness of a sheet by the amount of displacement of said detecting roller at the time when said sheet is fed through between said both rollers; and
said sheet thickness detecting apparatus is further configured to detect first and second displacements at both sides of said outer ring, obtain the heights of first and second slight blunt prominences on said sheet by subtracting the previously stored thickness of said sheet from said first and second displacements, and detect the height of a slight blunt prominence on said sheet from the detecting roller inclination obtained by subtracting the heights of said first and second slight blunt prominences. - The sheet thickness detecting apparatus described in Claim 8, said sheet thickness detecting apparatus is further configured to detect said sheet having said slight blunt prominence from said first and second displacements at the both sides of said outer ring, and furthermore detect said height of a slight blunt prominence on said sheet from said detecting roller inclination obtained by subtracting the heights of said first and second slight blunt prominences, which are obtained by subtracting the previously stored thickness of said sheet from said first and second displacements.
- The sheet thickness detecting apparatus described in Claim 8 or 9, wherein said roller inclination is the value obtained by addition of the inclinations of the adjacent detecting rollers.
- A sheet thickness detecting apparatus having a reference roller provided on a drive shaft, and a detecting roller capable of rotating depending on said reference roller by contacting with an outer ring of said reference roller, and said sheet thickness detecting apparatus is configured to detect the thickness of a sheet by the amount of displacement of said detecting roller at the time when said sheet is fed through between said both rollers; and
said sheet thickness detecting apparatus is further configured to detect the height of a slight blunt prominence on said sheet by detecting light projected in the direction of the rotary shaft of said detecting roller and by obtaining the displacement of said detecting roller based on the projected light. - A sheet thickness detecting apparatus having a reference roller provided on a drive shaft, and a detecting roller capable of rotating depending on said reference roller by contacting with an outer ring of said reference roller, and said sheet thickness detecting apparatus is configured to detect the thickness of a sheet by the amount of displacement of said detecting roller at the time when said sheet is fed through between said both rollers; and
said sheet thickness detecting apparatus is further configured to performs double detections of the presence or absence of said slight blunt prominence on said sheet, by detecting said sheet having a slight blunt prominence based on the detecting roller displacement, and also by detecting said sheet having a slight blunt prominence based on detection of the inclination of said detecting roller in the direction of the rotary shaft. - A bill handling machine comprising a sheet thickness detecting apparatus described in any one of Claims 1 through 12.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004180399A JP4444738B2 (en) | 2004-06-18 | 2004-06-18 | Paper thickness detector |
PCT/JP2005/011165 WO2005124702A1 (en) | 2004-06-18 | 2005-06-17 | Thickness detector for paper sheet and paper money handling device |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1764751A1 true EP1764751A1 (en) | 2007-03-21 |
EP1764751A4 EP1764751A4 (en) | 2011-03-23 |
EP1764751B1 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 (en) |
JP (1) | JP4444738B2 (en) |
KR (1) | KR100769374B1 (en) |
CN (1) | CN1820286B (en) |
TW (1) | TWI273516B (en) |
WO (1) | WO2005124702A1 (en) |
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US7612558B2 (en) | 2007-06-22 | 2009-11-03 | Hitachi-Omron Terminal Solutions Corporation | Bill discrimination device and sensor for same |
EP2249315A1 (en) * | 2009-04-27 | 2010-11-10 | Hitachi-Omron Terminal Solutions, Corp. | Medium thickness detection apparatus |
US9284144B2 (en) | 2014-01-29 | 2016-03-15 | Crane Payment Innovations, Inc. | Validator with a dynamic document path height |
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JP5299153B2 (en) * | 2009-07-31 | 2013-09-25 | 沖電気工業株式会社 | Paper sheet judgment device |
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JP5487035B2 (en) * | 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 | Paper sheet thickness detection device and bill handling device |
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CN108663004B (en) * | 2017-03-29 | 2020-04-28 | 深圳怡化电脑股份有限公司 | Method and device for detecting abnormal thickness of paper money |
CN107326717B (en) * | 2017-07-12 | 2019-05-28 | 东莞福迈包装印刷有限公司 | A kind of paper machine can detecte paper sheet thickness |
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 |
WO2021080599A1 (en) * | 2019-10-25 | 2021-04-29 | Hewlett-Packard Development Company, L.P. | Skew detection |
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- 2005-06-17 EP EP05751338A patent/EP1764751B1/en not_active Expired - Fee Related
- 2005-06-17 WO PCT/JP2005/011165 patent/WO2005124702A1/en not_active Application Discontinuation
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US9284144B2 (en) | 2014-01-29 | 2016-03-15 | Crane Payment Innovations, Inc. | Validator with a dynamic document path height |
Also Published As
Publication number | Publication date |
---|---|
CN1820286A (en) | 2006-08-16 |
TW200620164A (en) | 2006-06-16 |
KR100769374B1 (en) | 2007-10-22 |
EP1764751B1 (en) | 2012-10-24 |
EP1764751A4 (en) | 2011-03-23 |
WO2005124702A1 (en) | 2005-12-29 |
JP2006004206A (en) | 2006-01-05 |
JP4444738B2 (en) | 2010-03-31 |
CN1820286B (en) | 2014-10-29 |
TWI273516B (en) | 2007-02-11 |
KR20060030522A (en) | 2006-04-10 |
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