EP0023965B1 - Appareil d'examen de pièces de monnaie de diamètres différents - Google Patents

Appareil d'examen de pièces de monnaie de diamètres différents Download PDF

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Publication number
EP0023965B1
EP0023965B1 EP80103695A EP80103695A EP0023965B1 EP 0023965 B1 EP0023965 B1 EP 0023965B1 EP 80103695 A EP80103695 A EP 80103695A EP 80103695 A EP80103695 A EP 80103695A EP 0023965 B1 EP0023965 B1 EP 0023965B1
Authority
EP
European Patent Office
Prior art keywords
coin
cores
coil
coins
diameter
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
Application number
EP80103695A
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German (de)
English (en)
Other versions
EP0023965A1 (fr
EP0023965B2 (fr
Inventor
Pierre Dipl.-Ing.Htl Dubey
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.)
Ascom Autelca AG
Autelca AG
Original Assignee
Ascom Autelca AG
Autelca AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4322972&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0023965(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ascom Autelca AG, Autelca AG filed Critical Ascom Autelca AG
Priority to AT80103695T priority Critical patent/ATE5217T1/de
Publication of EP0023965A1 publication Critical patent/EP0023965A1/fr
Publication of EP0023965B1 publication Critical patent/EP0023965B1/fr
Application granted granted Critical
Publication of EP0023965B2 publication Critical patent/EP0023965B2/fr
Expired 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
    • G07D5/00—Testing specially adapted to determine the identity or genuineness of coins, e.g. for segregating coins which are unacceptable or alien to a currency
    • G07D5/08—Testing the magnetic or electric properties
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D5/00—Testing specially adapted to determine the identity or genuineness of coins, e.g. for segregating coins which are unacceptable or alien to a currency
    • G07D5/02—Testing the dimensions, e.g. thickness, diameter; Testing the deformation

Definitions

  • the invention relates to a coin validator for coins of different diameters with an elongated coil running transversely to the direction of coin movement and a circuit which evaluates the influence on the coil field to determine the coin diameter.
  • a coin validator of this type is known from US-A-4 108 296.
  • the coil provided for determining the coin diameter is an air coil, the transverse dimension of which makes up about a third of its length running transverse to the direction of the coin.
  • this has the advantage that the field influence is essentially proportional to the coin diameter and coin diameters that differ greatly from one another can be determined.
  • it is disadvantageous that coins with a slightly different diameter influence the field practically in the same way, at least not measurably differently, so that slightly different coin diameters cannot be distinguished.
  • the invention is based on the object of specifying how one can achieve with the coin validators of the type mentioned that with basically identical coils, simply by simply selecting the arrangement of individual parts, the coin diameters of each possible group of coin types are as good as possible from one another and from the diameters of unacceptable coin types , especially those with only slightly different coin diameters, can be distinguished.
  • the solution according to the invention has the advantage that the coil field can be selected in a simple manner exactly in accordance with the differentiation criteria that result for the coin type group in question, taking into account the different illegally used other coin bodies. If the coin diameters of the acceptable coin types differ greatly from one another, the cores can be arranged at greater distances from one another, which in addition to the good differentiability also saves on core material. Only if the coin diameters of the acceptable coin types differ little from one another is it necessary to arrange the individual cores close to one another or even immediately adjacent to one another.
  • the coins to be checked of different diameters are thrown into a common (not shown) coin insertion channel, which is arranged through the field of a broad side and with the output of an alternating current generator 1 connected coil 2 leads.
  • the alternating current frequency of generator 1 is 100 kHz.
  • the coil 2 has - as FIG. 2 shows - a coil core consisting of several E-cores 3.
  • the E cores 3 are arranged next to one another in a (not shown) holder in a row running transversely to the direction of coin movement 5 (not drawn to scale in FIG. 2).
  • the mutual distances between the individual cores 3 are to be selected as a function of the diameters of the coin type group to be checked so that the distinguishability of coins is only slightly different in diameter with approximately diameter-proportional field influencing is ensured as well as possible, with different distances generally being to be selected, in deviation from the schematic illustration in FIG. 2.
  • the distance between the facing surfaces of the two outermost E-cores 3 corresponds approximately to the diameter of the largest acceptable coin type and this distance is a multiple of the dimension of the E-cores 3 in the direction of the coin 5.
  • the coil winding is on the middle leg 4 of the E-cores 3 wrapped.
  • a coil 7 of exactly the same construction that is to say provided with E cores 6 arranged at corresponding distances from one another.
  • the legs of the cores 6 lie in the three same planes running perpendicular to the direction of coin 5 as the legs of the cores 3, so that the best possible inductive coupling of the coils is achieved.
  • the coupling is influenced by the coins that fall through the coin channel running between the coils 2, 7.
  • a medium-sized coin 8 is shown as it passes through the coils 2, 7.
  • the coil 7 is connected to the input of a rectifier 9, the output of which is connected to a smoothing element 10.
  • the smoothing element output is connected to the one inputs of six comparators 11 to 16, the other inputs of which are each connected to a voltage source via a potentiometer 21 to 26.
  • the outputs of the comparators 11 to 16 are connected in pairs to bistable flip-flops 27 to 29, namely the comparators 11, 13 and 15 to the C inputs and the comparators 12, 14 and 16 to the R inputs of the flip-flops.
  • a (not shown) control part, which controls the coin collecting device, is connected to the Q outputs of the flip-flops 27 to 29 and to a (not shown) flow signal transmitter arranged after the coils 2, 7 in the direction of coin movement 5.
  • the coin validator circuit part shown in FIG. 1 is designed for checking and determining three types of coins with different diameters.
  • a coin 8 to be checked arrives in the field of the coil 2, the inductive coupling between the coils 2 and thus the generator signal fed to the rectifier 9 are reduced.
  • the smoothed DC voltage signal at the output of the smoothing element 10 thus becomes smaller when a coin is passed. It reaches a minimum if the coin 8 influences the coil field as shown in FIG. 2 to a maximum, that is to say if the center of the coin lies between the middle legs of the cores 3, 6 and the coin with its entire diameter the field between the middle Thighs affected.
  • the signal then rises again and returns to its original value after passing through the coin.
  • the comparators 11 to 16 compare the output signal of the smoothing element 10 with the voltage supplied by the respective potentiometer 21 to 26.
  • the potentiometers 21 to 26 define an allowable voltage range for the minimum output signal of the smoothing element 10 for each of the three acceptable coin types.
  • the potentiometer 21 provides e.g. a voltage which is greater by a tolerance than the minimum output voltage of the smoothing element 10 when passing through the smallest acceptable coin type, the potentiometer 22 supplies a voltage which is less by a tolerance.
  • the potentiometers 23, 24 and 25, 26 deliver voltages which are larger or smaller by a tolerance than the output voltage of the smoothing element 10 in the middle and the largest coin type.
  • the comparators 11 to 16 then supply a signal (value 1) when the output voltage of the smoothing element 10 is less than the output voltage of the respective potentiometer 21 to 26.
  • the output voltage of the smoothing element 10 drops below the voltage value supplied by the potentiometer 21 and the comparator 11 sets the flip-flop 27, ie it forces the value 1 at the associated Q output.
  • the (not shown) continuous signal generator switches on the (not shown) control part when the coin passes through, which triggers the acceptance of the coin due to the value 1 at the Q output of the link 27 and transmits the associated smallest coin value to the arithmetic unit of the coin collecting device.
  • the control part then actuates a (not shown) resetting device which resets all the tilting members 27 to 29 to the 0 state.
  • the output voltage of the smoothing member 10 drops to a value between the voltage values of the potentiometers 23 and 24.
  • the comparators 11, 12 and 13 deliver signals to the flip-flops 27 and 28 in succession.
  • the flip-flop 27 is set to state 1 by the comparator 11 and reset to state 0 by the comparator 12, whereupon the comparator 13 sets the flip-flop 28 to state 1.
  • the element 28 remains in this state because the minimum of the output voltage supplied by the smoothing element 10 lies above the voltage value supplied by the potentiometer 24, that is to say the comparator 14 does not reset the flip-flop 28.
  • the control part determines the state 1 of the link 28 and the reset device restores the reset state on the link 28.
  • the flip-flops 27 and 28 are first set to state 1 in succession and then reset to state 0.
  • the flip-flop 29 is then set to state 1, queried by the control part and reset again.
  • the output voltage of the smoothing member 10 drops to a range that is not within the permissible range, that is to say, for example, between the values supplied by the potentiometers 22 and 23.
  • the initially set rocker member 27 is reset, while the rocker member 28 is not set. None of the flip-flops is therefore in state 1 when the control part is queried, which indicates the unacceptability of the coin.
  • the coins consist of non-magnetic material. With coins made of magnetic material, the coupling of the coils 2 and 7 would increase with the diameter of the coins.
  • the circuitry for testing magnetic coins could basically be the same as described above.
  • a test of the coin diameter that is completely independent of the alloy properties is particularly expedient if an alloy test is also carried out using a separate test coil (see coils 48, 50 described below in FIGS. 3 and 4). Otherwise, of course, a lower AC frequency can also be selected, in which the diameter and alloy influence the coupling. (It is a prerequisite, of course, that the alloy differences do not exactly compensate for the change in the coupling caused by the difference in the coin diameters.) For the sake of completeness, it should also be mentioned that the coupling also depends on the thickness of the coins, so that coins of larger diameter due to their usually greater thickness affect the coil field a little more than would be expected due to their diameter.
  • the core of the coil 31 consists of eight E-cores 34 to 41, which are arranged at different distances next to one another in a cross-sectionally U-shaped holder 42 which is transverse to the direction of coin 33, so that their legs are perpendicular to the direction of coin 33.
  • the dimension of the e-cores 34 to 41 in the direction of the coin 33 is a quarter of the distance between the surfaces of the two outermost cores 34 and 41 facing away from one another.
  • the coil winding 43 encloses the middle legs of the e-cores 34 to 41.
  • the coil 32 also has accordingly eight E-cores 44, which lie exactly symmetrically opposite the cores 34 to 41 on the coin channel 30.
  • One coin 45, 46, 47 of the three different sized coin types to be checked is shown in the coin channel 30.
  • the arrangement of the cores 34 to 41 and the holder 42 is selected such that, on the one hand, unacceptable coins, the diameter of which differ only slightly from those of the acceptable coin types, influence the coil field as differently as possible from the acceptable coins, and on the other hand the influence on the coil field is approximately proportional to the diameter of the acceptable coins.
  • the first condition is met in that the three coins 45, 46, 47 rolling on the narrow wall of the coin channel 30 on the left in FIG. 4 each cover one core on the right-hand side when passing through the coil 31, namely the core 36, 38 or 40, but do not influence the field of the core 37, 39 or 41 immediately adjacent to it.
  • the coin validator also has an alloy test circuit (not shown in detail) with two coupling coils 48, 50 arranged at a distance from the coils 31, 32 and having the same pot cores 49, 51.
  • the outer diameter of the pot core 49 and 51 is smaller than the diameter of the smallest acceptable one Coin, which enables an alloy test independent of the coin diameter.
  • the circuit can be constructed similarly to that in FIG. 1, the alternating current frequency of the generator 1 being smaller, to be chosen so that the influence of the alloy on the coil field is maximal.
  • each of the two coil cores consists of seven U-cores arranged next to one another in a holder (not shown), of which the drawing shows extreme are designated 54, 55 and 56, 57.
  • the coil windings enclose the webs of the strung U-cores.
  • the two coils 52, 53 are arranged opposite one another on the coin channel, the legs of the U-cores 54 to 57 lying in two planes running perpendicular to the coin running direction.
  • two coupled coils are always provided in accordance with the circuit principle chosen for FIG. 1, which are opposite one another on the coin channel.
  • only one coil could also be provided, which, as a self-induction coil, belongs, for example, to an oscillating circuit fed by an AC power source.
  • the damping (or, in the case of magnetic coins, the amplification) of the vibrations which occurs when a coin passes the field of the self-induction coil would then be a measure of the coin diameter (or of the alloy in the case of the coil 48).

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Coins (AREA)

Claims (6)

1. Vérificateur de monnaie pour monnaies de diamètres différents, avec une bobine allongée (2; 31; 52) s'étendant perpendiculairement à la direction (5; 33) du mouvement de la monnaie et un circuit (9-29) qui interprète l'influence exercée sur le champ de le bobine en vue de déterminer lè diamètre de la monnaie, caractérisé par le fait que la bobine (2; 31; 52) présente un noyau consistant en plusieurs noyaux en U (54, 55) ou en E (3; 34-41) et que les noyaux en U ou en E sont agencés dans un support (42) en une rangée orientée perpendiculairement à la direction du mouvement de la monnaie, juxtaposés directement (figure 5) ou à distance les uns des autres (figures 2 et 4) en fonction des diamètres des pièces du groupe de types de monnaie à vérifier, de telle façon que la faculté de distinguer des pièces (8; 45-47) dont les diamètres diffèrent seulement légèrement les uns des autres soit garantie le mieux possible avec une influence du champ approximativement proportionnelle au diamètre.
2. Vérificateur de monnaie selon la revendication 1, caractérisé par le fait que l'enroulement (43) de la bobine entoure les bases des noyaux en U (54, 55) ou les branches médianes des noyaux en E (3; 34-41).
3. Vérificateur de monnaie selon la revendication 1 ou 2, caractérisé par le fait que les branches des noyaux en U (54, 55) ou des noyaux en E (3; 34-41) sont perpendiculaires à la direction (5; 33) du mouvement de la monnaie.
4. Vérificateur de monnaie selon l'une des revendications 1 à 3, caractérisé par le fait que la distance des surfaces tournées les unes vers les autres des deux noyaux en U (54, 55) ou en E (34, 41) situés le plus à l'extérieur correspond sensiblement au diamètre du type de monnaie acceptable de taille la plus grande.
5. Vérificateur de monnaie selon l'une des revendication 1 à 4, dans lequel la bobine (2; 31; 52) est l'une de deux bobines de couplage (2, 7; 31,32; 52, 53) situées en regard l'une de l'autre sur le canal (30) des pièces, caractérisé par le fait que les noyaux (3, 6; 34-41, 44; 54-57) des deux bobines de couplage sont de réalisations identiques et sont disposés symétriquement par rapport au canal des pièces.
6. Vérificateur de monnaie selon la revendication 1, caractérisé par une seconde bobine (48) dont le noyau (49) est, aussi bien dans la direction (33) du mouvement de la monnaie que perpendiculairement à cette direction, plus petit que le diamètre de la pièce acceptable (45) la plus petite, de façon à permettre une vérification des alliages indépendante du diamètre des pièces.
EP80103695A 1979-08-08 1980-06-30 Appareil d'examen de pièces de monnaie de diamètres différents Expired EP0023965B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80103695T ATE5217T1 (de) 1979-08-08 1980-06-30 Muenzpruefer fuer muenzen verschiedenen durchmessers.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH7300/79 1979-08-08
CH730079 1979-08-08

Publications (3)

Publication Number Publication Date
EP0023965A1 EP0023965A1 (fr) 1981-02-18
EP0023965B1 true EP0023965B1 (fr) 1983-11-02
EP0023965B2 EP0023965B2 (fr) 1988-12-28

Family

ID=4322972

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80103695A Expired EP0023965B2 (fr) 1979-08-08 1980-06-30 Appareil d'examen de pièces de monnaie de diamètres différents

Country Status (5)

Country Link
US (1) US4371073A (fr)
EP (1) EP0023965B2 (fr)
AT (1) ATE5217T1 (fr)
DE (1) DE3065456D1 (fr)
YU (1) YU198580A (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0057972B1 (fr) * 1981-01-12 1986-10-08 Kabushiki Kaisha Toshiba Appareil pour la détection d'un ruban métallique encastré dans du papier
EP0060392B1 (fr) * 1981-03-06 1985-12-18 Sodeco-Saia Ag Dispositif d'examen de pièces de monnaie
US4488116A (en) * 1981-09-22 1984-12-11 Mars, Incorporated Inductive coin sensor for measuring more than one parameter of a moving coin
US4574936A (en) * 1983-05-10 1986-03-11 Lance Klinger Coin accepter/rejector including symmetrical dual feedback oscillator
US4705154A (en) * 1985-05-17 1987-11-10 Matsushita Electric Industrial Co. Ltd. Coin selection apparatus
GB8526686D0 (en) * 1985-10-30 1985-12-04 Neo Electronics Ltd Coin validation device
US4998610A (en) * 1988-09-19 1991-03-12 Said Adil S Coin detector and counter
US4936435A (en) * 1988-10-11 1990-06-26 Unidynamics Corporation Coin validating apparatus and method
JP2767278B2 (ja) * 1989-04-10 1998-06-18 株式会社日本コンラックス 硬貨選別装置
US5244070A (en) * 1992-03-04 1993-09-14 Duncan Industries Parking Control Systems Corp. Dual coil coin sensing apparatus
US5273151A (en) * 1992-03-23 1993-12-28 Duncan Industries Parking Control Systems Corp. Resonant coil coin detection apparatus
US5599573A (en) * 1995-05-31 1997-02-04 Nestec S.A. Preparation of acidified pastas
US5579887A (en) * 1995-06-15 1996-12-03 Coin Acceptors, Inc. Coin detection apparatus
KR19990028994A (ko) * 1995-07-14 1999-04-15 말콤 레지날드 할라스 벨 코인 식별장치
US6227343B1 (en) 1999-03-30 2001-05-08 Millenium Enterprises Ltd. Dual coil coin identifier
JP4143711B2 (ja) * 2000-08-30 2008-09-03 旭精工株式会社 コインセンサのコア
GB2394820A (en) * 2002-11-01 2004-05-05 Innovation Technology Ltd Sensing coin diameter

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US3209294A (en) * 1962-10-23 1965-09-28 Westinghouse Electric Corp Magnetic core structures
US3373856A (en) * 1966-01-18 1968-03-19 Canadian Patents Dev Method and apparatus for coin selection
US3576244A (en) * 1969-01-08 1971-04-27 Vendo Co Coin acceptor having resistivity and permeability detector
LU60617A1 (fr) * 1969-03-31 1970-05-28
US3738469A (en) * 1969-08-22 1973-06-12 G Prumm Tester for different types of coins
DE1947238A1 (de) * 1969-09-18 1971-04-08 Pruemm Georg Elektronischer Mehrsorten-Muenzpruefer
GB1461404A (en) * 1973-05-18 1977-01-13 Mars Inc Coin selection method and apparatus
JPS5611181Y2 (fr) * 1975-12-02 1981-03-13
JPS5296598A (en) * 1976-02-10 1977-08-13 Nippon Koinko Kk Coin examining means for automatic vending machines
US4108296A (en) * 1976-04-08 1978-08-22 Nippon Coinco Co., Ltd. Coin receiving apparatus for a vending machine
US4184366A (en) * 1976-06-08 1980-01-22 Butler Frederick R Coin testing apparatus

Also Published As

Publication number Publication date
EP0023965A1 (fr) 1981-02-18
ATE5217T1 (de) 1983-11-15
US4371073A (en) 1983-02-01
YU198580A (en) 1982-10-31
EP0023965B2 (fr) 1988-12-28
DE3065456D1 (en) 1983-12-08

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