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EP0543200B1 - ContrÔleur de pièces de monnaie - Google Patents

ContrÔleur de pièces de monnaie Download PDF

Info

Publication number
EP0543200B1
EP0543200B1 EP92118682A EP92118682A EP0543200B1 EP 0543200 B1 EP0543200 B1 EP 0543200B1 EP 92118682 A EP92118682 A EP 92118682A EP 92118682 A EP92118682 A EP 92118682A EP 0543200 B1 EP0543200 B1 EP 0543200B1
Authority
EP
European Patent Office
Prior art keywords
coin
magnetic coil
coil
edge
magnetic
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 - Lifetime
Application number
EP92118682A
Other languages
German (de)
English (en)
Other versions
EP0543200A1 (fr
Inventor
Rolf Arndt
Hans-Ulrich Cohrs
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.)
Crane Payment Innovations GmbH
Original Assignee
National Rejectors Inc GmbH
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
Application filed by National Rejectors Inc GmbH filed Critical National Rejectors Inc GmbH
Publication of EP0543200A1 publication Critical patent/EP0543200A1/fr
Application granted granted Critical
Publication of EP0543200B1 publication Critical patent/EP0543200B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G07D5/10—Testing the rim, e.g. the milling of the rim

Definitions

  • the invention relates to a coin validator according to the preamble of claim 1.
  • Electronic coin validators mainly work with inductive and / or optical probes.
  • a magnet coil is usually part of an oscillator, and its magnetic field interacts with the coin rolling along the coin path. This results in damping of the oscillator circuit with corresponding changes in amplitude, frequency and phase position.
  • the frequency or phase change is used to measure the measured value to compare a target value so that, if necessary, a false certificate or an impermissible foreign coin is eliminated.
  • a coin validator has become known with a coin channel which has an approximately vertical section.
  • a magnetic coil is assigned to this section, which is held by a holding device which is attached to the track carrier.
  • the holding device enables the yoke of the magnetic coil to be adjusted into or away from the coin channel in order to adapt to different coin sizes.
  • the magnetic field is directed so that it is approximately perpendicular to the coin surfaces in the edge area of the coins.
  • Optical sensors work as a light barrier, which is crossed by the rolling coin.
  • optical sensors are also known which detect the light reflected by a coin, for example for determining a specific coin edge, such as knurling.
  • the diameter of the coins is a typical parameter.
  • Optical and inductive sensors are also used for diameter measurement.
  • the effective coil area is aimed at the embossing and the covered area is evaluated.
  • the nature of the material is naturally also included in the measured value, depending on the choice of frequency.
  • a different or larger diameter of the disc to be tested can be simulated.
  • the coin passes through at least two or more photo galleries or light barriers, and the times which pass from the passage of one route to the passage of the other route are determined, since these times represent an indicator of the diameter.
  • the magnetic coil is arranged below the coin track so that the magnetic field interacts with the coin edge.
  • the direction of the main field of the magnetic coil or the effective coil surface is arranged such that the magnetic field direction is perpendicular to the coin edge.
  • the coin edge is therefore “viewed” in a targeted manner.
  • the frequency is chosen so that the magnetic field penetrates the material of the coin.
  • a so-called skin effect is obtained from a certain frequency, in which the magnetic field no longer penetrates significantly into the material of the coin. If a low frequency is selected, a more or less deep penetration takes place instead, so that the material of the coin is also recorded.
  • the coin rim now consists of non-magnetic material, this results in a relatively large air gap between the material adapted to the real coin and the magnetic coil, which has a corresponding effect on the damping. If the coin edge of the coin to be checked has been turned off, this leads to a more intensive interrelation between the coil and the coin material compared to a knurled coin, which can also be detected.
  • the shape of the edge of the coin, the material of the edge of the coin, its thickness and its knurling are detected, so that a large number of manipulated disks and coins can be discriminated.
  • the magnetic coil is sunk in a lateral approach of the track carrier.
  • the magnetic coil in a lateral opening of the lateral extension are inserted, whereby according to a further embodiment of the invention it projects beyond the free end of the extension and protrudes into a recess in the main plate. It is thereby achieved that the axis of the effective coil surface lies approximately in the center plane of the coin channel, the bottom of which is delimited by the raceway.
  • Fig. 1 shows schematically the side view of a coin validator according to the invention.
  • Fig. 2 shows a section through the representation of Fig. 1 along the line 2-2.
  • a coin validator not shown, has a track 10 on which a coin 12 rolls.
  • a magnet coil 14 with a winding 16 is arranged below the track. From the winding 16 it can be seen that the effective coil surface is turned towards the edge of the coin 12.
  • Fig. 2 From Fig. 2 it can be seen that the coil 14 in one lateral approach 18 of a track carrier 20 is arranged, which is attached to a main plate 22.
  • the track carrier 20 is normally articulated and can be pivoted away from the main plate 22.
  • the coil 14 extends beyond the free end of the extension 18 and engages in a recess in the main plate 22.
  • the axis of the effective coil surface is approximately in the center plane of the channel, which is formed by the raceway carrier 20, the main plate 22 and the raceway 10.
  • the coil 14 is part of an oscillator, not shown, the parameters of which change when a coin approaches the coil 14.
  • the oscillating circuit of the oscillator is damped, which can be detected with the aid of a suitable evaluation circuit, also not shown.
  • the magnetic field vibrating at a certain frequency interacts with the edge of the coin 12, so that it can be detected whether the edge is knurled or not or consists of a non-conductive or non-magnetic material.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Coins (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Claims (2)

  1. Dispositif de contrôle de pièces de monnaie, comportant :
    un canal à pièce de monnaie présentant une piste de roulement (10) pour pièce de monnaie, canal auquel est associé une bobine magnétique (14) fonctionnant sous tension alternative, et dont le champ magnétique coopère avec le bord de la pièce, et avec un circuit d'évaluation, qui appréhende véritablement une grandeur de la tension alternative sur la bobine magnétique (14) et qui compare la grandeur modifiée par la variation à au moins une valeur de consigne,
    la fréquence de la tension alternative étant choisie de manière que le champ magnétique de la bobine magnétique (14) pénètre dans le matériau de la pièce de monnaie (12),
    caractérisé en ce que la bobine magnétique (14) est disposée cachée en dessous de la piste (10), dans un appendice latéral (18) d'un support de piste (20), de telle façon que le champ principal de la bobine magnétique (14) est orienté à peu près perpendiculairement par rapport au bord de pièce.
  2. Dispositif de contrôle de pièces de monnaie selon la revendication 1, caractérisé en ce que la bobine magnétique (14) fait saillie sur l'extrémité libre de l'appendice (18), en pénétrant dans un évidement d'une plaque principale (22).
EP92118682A 1991-11-16 1992-10-31 ContrÔleur de pièces de monnaie Expired - Lifetime EP0543200B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9114313U 1991-11-16
DE9114313U DE9114313U1 (de) 1991-11-16 1991-11-16 Münzprüfer

Publications (2)

Publication Number Publication Date
EP0543200A1 EP0543200A1 (fr) 1993-05-26
EP0543200B1 true EP0543200B1 (fr) 1996-01-03

Family

ID=6873375

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92118682A Expired - Lifetime EP0543200B1 (fr) 1991-11-16 1992-10-31 ContrÔleur de pièces de monnaie

Country Status (3)

Country Link
EP (1) EP0543200B1 (fr)
DE (2) DE9114313U1 (fr)
ES (1) ES2082328T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2127150B1 (es) * 1997-07-29 1999-11-16 Azkoyen Ind Sa Metodo para la identificacion de piezas metalicas discoidales con un orificio central.
CN101819693A (zh) * 2010-04-23 2010-09-01 南开大学 硬币币值智能检测系统

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2120053A1 (de) * 1971-04-23 1972-11-09 Standard Elektrik Lorenz Ag, 7000 Stuttgart Detektor für Münzkanäle
DE2825094A1 (de) * 1978-06-08 1979-12-13 Nat Rejectors Gmbh Verfahren und vorrichtung zur raendelpruefung von muenzen
DE3014792A1 (de) * 1980-04-17 1981-10-22 Nsm-Apparatebau Gmbh & Co Kg, 6530 Bingen Anordnung zum identifizieren von opjekten
JPS5958595A (ja) * 1982-09-28 1984-04-04 富士電機株式会社 硬貨選別装置
DE3605802C2 (de) * 1986-02-22 1997-10-16 Nsm Ag Verfahren zum Prüfen von Münzen und Münzprüfer zur Durchführung des Verfahrens
JPS62241092A (ja) * 1986-03-14 1987-10-21 武蔵エンジニアリング株式会社 硬貨判別機
DE9202944U1 (de) * 1992-03-06 1992-06-11 National Rejectors Inc. Gmbh, 2150 Buxtehude Sensorkombination zum Prüfen von Münzen in einem Münzprüfer

Also Published As

Publication number Publication date
DE59204919D1 (de) 1996-02-15
EP0543200A1 (fr) 1993-05-26
DE9114313U1 (de) 1993-03-18
ES2082328T3 (es) 1996-03-16

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