EP2192561A1 - Procédé et dispositif de détermination du diamètre de pièces de monnaie dans un appareil à pièces jetées - Google Patents

Procédé et dispositif de détermination du diamètre de pièces de monnaie dans un appareil à pièces jetées Download PDF

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Publication number
EP2192561A1
EP2192561A1 EP09014658A EP09014658A EP2192561A1 EP 2192561 A1 EP2192561 A1 EP 2192561A1 EP 09014658 A EP09014658 A EP 09014658A EP 09014658 A EP09014658 A EP 09014658A EP 2192561 A1 EP2192561 A1 EP 2192561A1
Authority
EP
European Patent Office
Prior art keywords
coins
diameter
coin
light
light barriers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP09014658A
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German (de)
English (en)
Inventor
Claus Peter Heins
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 EP2192561A1 publication Critical patent/EP2192561A1/fr
Withdrawn legal-status Critical Current

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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
    • 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 method for determining the diameter of different coins in a free fall coin device according to claim 1.
  • Conventional coin validators have a track along which coins roll along after the throw. On their way to the track, they are tested for authenticity with the help of one or more probes. When authenticated, they pass through a switch in a cash register or a Münztube a coin store. If the authenticity check is negative, the coin is directed into the return channel.
  • Free fall coins are used. In these coins fall a certain distance above a Münzweiche or the like. Free-fall coins have the advantage that the coins move faster than conventional devices. Checking the coins for authenticity in a free-fall coin device requires special precautions.
  • An authenticity criterion for coins is their diameter.
  • Conventional coin validators are therefore equipped with a measuring device for the diameter determination. It is known to perform a diameter test by inductive means with appropriate measuring coils. However, it is also known to provide for the diameter test photocells. On the one hand, with the help of the light barriers, a time measurement is made to determine the time that a coin goes through a certain distance during its fall. In addition, the speed of the coin is measured to calculate the diameter from these two values. Such a provision is approximately in US 6,053,300 and US 6,467,604 B1 described.
  • the known coin dispensers have two spaced in the direction of the coin photocells, in US 6,467,604 B1 between the the first and second light barrier, an inductive sensor is arranged and the distance between the first and second sensor is greater than the distance between the second and third sensor.
  • US 6,053,300 It is described that the diameter is calculated from the time difference between leaving the coin of the first light barrier and leaving the coin of the third light barrier. A reference to the immersion of the coin in the first photocell is expressly excluded.
  • the departure of the coin of the last photocell is used to determine the diameter, this means that the underlying Münzweiche has at least a distance from the third photocell, which is greater than the diameter of the largest coin to be accepted. This means that the entire fall path is relatively long in the known device, which has a corresponding height of the coin unit result.
  • the invention has for its object to provide a method and apparatus for determining the diameter of different coins in a free fall coin device, which requires only a small overall height of the coin device.
  • a starting signal is preferably first generated by the inserted coins. If photocells are used, the generation of a start signal is obligatory if an accurate diameter determination is to be carried out. Because a light barrier is preferably not operated in continuous operation, but is turned on when a coin check is pending. For the invention, a start signal is not mandatory.
  • the distance between the light barriers need not be particularly large. It can be smaller than the smallest coin to be accepted. Of course, this distance can not be made arbitrarily small, if the measurement accuracy is not to suffer.
  • the distance between the second light barrier and a Münzweiche is at least as large as the diameter of the largest coin to be accepted. In the method claim 1, however, this distance can be chosen smaller because only the immersion of the Coin is considered in the second light barrier and it is not necessary that the coin has completely crossed the second light barrier before a diameter determination is to be made.
  • a start signal can be generated in the invention of an inductive probe, which is arranged anyway for measurement purposes in the entrance area of the free fall path.
  • a start signal can also be generated by the signal of the first light barrier when dipping a coin.
  • the inventive device according to claim 6 provides in the fall path before spaced light barriers that give signals when dipping and leaving the coins on an evaluation device.
  • the evaluation device calculates the diameter values from the signals which are generated when passing through the coins. In any case, the acceleration of gravity is taken into account in the calculation of the diameter, which makes it possible to determine the diameter of the coins with only two time variables.
  • the invention assumes that the coins fall through the fall path relatively freely after being thrown in, without being slowed down by obstacles. This requirement is normally met by free fall coin validators.
  • FIG. 1 is a free fall path 10 indicated for coins.
  • the coins fall in the direction of arrow 12.
  • a first light barrier LS1 has a light transmitter 14 and a light receiver 16.
  • a second light barrier LS2 has a light transmitter 18 and a light receiver 20.
  • the distance between the light barriers LS1 and LS2 is denoted by d.
  • a coin 22 is shown above the first light barrier LS1.
  • FIG. 1 indicated which positions the coin gradually assumes when it passes through the light barriers LS1 and LS2.
  • the coin 22 generates a first signal when it enters the area of the light barrier LS1. This happens at time t1 (see FIG. 2 ). Over a period of time from t1 to t2, coin 22 passes through photocell LS1.
  • the coin 22 has a diameter m.
  • the signals of the light barriers LS1, LS2 and the light receiver 16, 20 go to an evaluation device 24, in which the diameter m is determined.
  • the light barrier LS1 may be preceded by an inductive sensor for generating a start signal. This sensor is not drawn. However, it is also possible to use the first signal at time t1 of the first light barrier LS1 as a start signal.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Coins (AREA)
EP09014658A 2008-11-27 2009-11-25 Procédé et dispositif de détermination du diamètre de pièces de monnaie dans un appareil à pièces jetées Withdrawn EP2192561A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810059310 DE102008059310A1 (de) 2008-11-27 2008-11-27 Verfahren und Vorrichtung zur Bestimmung des Durchmessers von Münzen in einem Freifallmünzgerät

Publications (1)

Publication Number Publication Date
EP2192561A1 true EP2192561A1 (fr) 2010-06-02

Family

ID=41720515

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09014658A Withdrawn EP2192561A1 (fr) 2008-11-27 2009-11-25 Procédé et dispositif de détermination du diamètre de pièces de monnaie dans un appareil à pièces jetées

Country Status (2)

Country Link
EP (1) EP2192561A1 (fr)
DE (1) DE102008059310A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3797307A (en) * 1972-01-20 1974-03-19 Little Inc A Coin discriminator
DE2724868A1 (de) * 1977-06-02 1978-12-14 Walter Hanke Mechanische Werks Vorrichtung zur beruehrungsfreien durchmesserbestimmung an muenzen
EP0694888A1 (fr) * 1994-07-29 1996-01-31 Landis & Gyr Technology Innovation AG Dispositif d'examen de pièces de monnaie ou d'autres objets plats
US6053300A (en) 1995-07-14 2000-04-25 Coins Controls Ltd. Apparatus and method for determining the validity of a coin

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3797307A (en) * 1972-01-20 1974-03-19 Little Inc A Coin discriminator
DE2724868A1 (de) * 1977-06-02 1978-12-14 Walter Hanke Mechanische Werks Vorrichtung zur beruehrungsfreien durchmesserbestimmung an muenzen
EP0694888A1 (fr) * 1994-07-29 1996-01-31 Landis & Gyr Technology Innovation AG Dispositif d'examen de pièces de monnaie ou d'autres objets plats
US6053300A (en) 1995-07-14 2000-04-25 Coins Controls Ltd. Apparatus and method for determining the validity of a coin
US6467604B1 (en) 1995-07-14 2002-10-22 Coin Controls, Ltd. Apparatus and method for determining the validity of a coin

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Publication number Publication date
DE102008059310A1 (de) 2010-06-02

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