EP0888595B1 - Anordnung zum prüfen von münzen - Google Patents

Anordnung zum prüfen von münzen Download PDF

Info

Publication number
EP0888595B1
EP0888595B1 EP97915378A EP97915378A EP0888595B1 EP 0888595 B1 EP0888595 B1 EP 0888595B1 EP 97915378 A EP97915378 A EP 97915378A EP 97915378 A EP97915378 A EP 97915378A EP 0888595 B1 EP0888595 B1 EP 0888595B1
Authority
EP
European Patent Office
Prior art keywords
coin
coil
side wall
coins
arrangement
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
EP97915378A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0888595A1 (de
Inventor
Thomas Seitz
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.)
IPM INTERNATIONAL SA
Deutsche Telekom AG
Original Assignee
Electrowatt Technology Innovation 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
Application filed by Electrowatt Technology Innovation AG filed Critical Electrowatt Technology Innovation AG
Priority to SI9730011T priority Critical patent/SI0888595T1/xx
Publication of EP0888595A1 publication Critical patent/EP0888595A1/de
Application granted granted Critical
Publication of EP0888595B1 publication Critical patent/EP0888595B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07DHANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D5/00Testing specially adapted to determine the identity or genuineness of coins, e.g. for segregating coins which are unacceptable or alien to a currency
    • G07D5/02Testing the dimensions, e.g. thickness, diameter; Testing the deformation
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07DHANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D5/00Testing specially adapted to determine the identity or genuineness of coins, e.g. for segregating coins which are unacceptable or alien to a currency
    • G07D5/08Testing the magnetic or electric properties

Definitions

  • the invention relates to an arrangement for checking coins according to the preamble of claim 1.
  • the arrangement is used in coin validators of vending and service machines, such as e.g. B. telephone stations, drinks or cigarette machines, etc.
  • the coins often have one sandwich-like structure, whose layers of differently alloyed, nickel-containing metals, e.g. B. CuNi and Ni exist.
  • the invention has for its object to improve the known arrangement so that at least the combinatorial effect of the coin thickness and a sandwich structure of the Detectable coin and inner coin layers with 4%, 6% and 8% nickel in an environment of CuNi are recognizable, which allows a clear identification of the coin concerned.
  • An arrangement for checking coins 1 has a coin channel 2, along which in the Direction of movement of the coins 1 several coils are arranged one behind the other.
  • the coil 4 is used for the determination the thickness of the coins 1 to be checked and preferably consists of a first coil half 4a and a second coil half 4b, both in the opposite phase in the arrangement according to the invention are electrically connected in series (see FIG. 4) and each have a ferromagnetic core 4c or 4d exhibit.
  • the coil 4 is part of a resonant circuit, not shown, of a Power source is fed with an alternating current, which is an alternating magnetic field in the ferromagnetic cores 4c and 4d of the coil halves 4a and 4b generated.
  • the coil 3 serves on the other hand, the determination of the alloy composition of the coins to be checked 1 and is open arranged on the same side of the coin channel 2 as the coil half 4b.
  • the coil 3 is part of a resonance resonant circuit, not shown, which is from a current source with a Alternating current is fed, which is an alternating magnetic field in a ferromagnetic core 3a Coil 3 generated.
  • the coin channel 2 has a bottom surface 5 and serving as an inclined plane at least one side wall 6.
  • the two coil halves 4a and 4b are arranged opposite each other on both sides of the coin channel 2, their axes run perpendicular to the side wall 6.
  • the coins 1 move in the arrangement during checking along the side wall 6 of the coin channel 2 and thereby on the two coil halves 4a and 4b the coil 4 over, between which they thus move past.
  • the coil half 4b is located in the side wall 6, d. H. in the side wall along which the coins 1 move while the coil half 4a in the opposite other side wall 7th located.
  • the coil half 4b like the side wall 6, is independent of the coin thickness constantly an equal, perpendicular to the side wall 6 measured distance to the coin 1 and provides therefore no contribution to the measurement of this coin thickness.
  • the latter is exclusively through the Coil half 4a determined, whose distance from the coin 1 measured perpendicular to the side wall 6 the coin thickness is dependent. That is, by moving the metallic coin in the same eddy currents caused by inductive reaction on the coil 4 Change ⁇ R of the resistance R of the coil half 4a, which change is a measure of the Coin thickness is.
  • the measuring sensitivity deteriorates less if the coil half 4b with the resistance R ', which is located on the same side of the coin channel 2 as the side wall 6, while maintaining the number of turns and the alternating magnetic field value, is lower-resistance than the other coil half 4a with the resistance R.
  • the measuring sensitivity S ⁇ R / [R + R '] with R' is less than R, whereby R 'should be as small as possible compared to R in order to achieve a minimal deterioration.
  • the measurement sensitivity S is thus noticeably better if the lower-resistance coil half 4b is wound with a stranded wire, while the coil half 4a continues to be conventional, e.g. B.
  • R AC is significantly larger than R DC .
  • R AC is practically no current displacement in its current conductor, so that R AC ⁇ 0 and the resistance R 'are practically reduced to the DC component R DC .
  • R ' ⁇ R DC R / 5.
  • the measured value of ⁇ R is a combinatorial function of the coin thickness and the sandwich-like alloy composition of the coin 1. It thus gives an equation two unknowns, namely the coin thickness and the alloy composition. In many Knowing the authenticity and the value of the coin 1 is sufficient in cases combinatorial effect of coin 1, d. H. the determination of ⁇ R. If so, however is insufficient, the alloy composition of the Coin 1 can be determined. This yields a second equation, so a total of two equations there are two unknowns, the solution of which gives separate values of the two unknowns, namely the thickness and the alloy composition of the coin 1, both values for the Authenticity and the value of coin 1 are characteristic.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Coins (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Pinball Game Machines (AREA)
  • Basic Packing Technique (AREA)
  • Road Signs Or Road Markings (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Noodles (AREA)
  • Details Of Indoor Wiring (AREA)
  • Installation Of Indoor Wiring (AREA)
EP97915378A 1996-03-19 1997-03-18 Anordnung zum prüfen von münzen Expired - Lifetime EP0888595B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9730011T SI0888595T1 (en) 1996-03-19 1997-03-18 Coin-checking arrangement

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH71896 1996-03-19
CH71896 1996-03-19
CH718/96 1996-03-19
PCT/EP1997/001342 WO1997035286A1 (de) 1996-03-19 1997-03-18 Anordnung zum prüfen von münzen

Publications (2)

Publication Number Publication Date
EP0888595A1 EP0888595A1 (de) 1999-01-07
EP0888595B1 true EP0888595B1 (de) 1999-09-08

Family

ID=4193565

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97915378A Expired - Lifetime EP0888595B1 (de) 1996-03-19 1997-03-18 Anordnung zum prüfen von münzen

Country Status (16)

Country Link
US (1) US6065582A (pl)
EP (1) EP0888595B1 (pl)
AT (1) ATE184410T1 (pl)
AU (1) AU2288397A (pl)
CA (1) CA2249384A1 (pl)
CZ (1) CZ287682B6 (pl)
DE (1) DE59700421D1 (pl)
EE (1) EE03321B1 (pl)
ES (1) ES2135981T3 (pl)
GR (1) GR3031428T3 (pl)
HU (1) HU220264B (pl)
IS (1) IS4843A (pl)
NO (1) NO984322L (pl)
PL (1) PL182765B1 (pl)
SK (1) SK283245B6 (pl)
WO (1) WO1997035286A1 (pl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008030942A1 (de) 2008-07-02 2010-01-07 Christoph Miethke Gmbh & Co Kg Hirnwasserdrainagen

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3652545B2 (ja) * 1999-04-26 2005-05-25 ローレルバンクマシン株式会社 硬貨判別装置
JP4143711B2 (ja) * 2000-08-30 2008-09-03 旭精工株式会社 コインセンサのコア
JP4780494B2 (ja) * 2005-06-14 2011-09-28 旭精工株式会社 硬貨金種判別装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986104A (en) * 1976-01-19 1976-10-12 Robert F. Gardiner Dual frequency metal detector system
US4416365A (en) * 1981-08-21 1983-11-22 Mars, Inc. Coin examination apparatus employing an RL relaxation oscillator
US4705154A (en) * 1985-05-17 1987-11-10 Matsushita Electric Industrial Co. Ltd. Coin selection apparatus
CH667546A5 (de) * 1985-07-26 1988-10-14 Autelca Ag Einrichtung zur muenzenpruefung.
GB2234619B (en) * 1989-07-28 1993-04-14 Mars Inc Coin validators
WO1993002431A1 (en) * 1991-07-16 1993-02-04 C.T. Coin A/S Method and apparatus for testing and optionally sorting coins
JPH05128324A (ja) * 1991-11-07 1993-05-25 Mitsubishi Electric Corp 非接触カード、非接触カード用端末機及び非接触伝送システム

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008030942A1 (de) 2008-07-02 2010-01-07 Christoph Miethke Gmbh & Co Kg Hirnwasserdrainagen
WO2010000461A1 (de) 2008-07-02 2010-01-07 C.Miethke Gmbh & Co Kg Hirnwasserdrainagen

Also Published As

Publication number Publication date
EE03321B1 (et) 2000-12-15
CZ287682B6 (en) 2001-01-17
NO984322D0 (no) 1998-09-17
AU2288397A (en) 1997-10-10
DE59700421D1 (de) 1999-10-14
SK283245B6 (sk) 2003-04-01
PL329033A1 (en) 1999-03-01
IS4843A (is) 1998-09-08
WO1997035286A1 (de) 1997-09-25
HU220264B (hu) 2001-11-28
EP0888595A1 (de) 1999-01-07
SK126498A3 (en) 1999-03-12
HUP9901287A3 (en) 1999-11-29
NO984322L (no) 1998-09-17
CA2249384A1 (en) 1997-09-25
US6065582A (en) 2000-05-23
HUP9901287A2 (hu) 1999-08-30
ATE184410T1 (de) 1999-09-15
CZ291198A3 (cs) 1999-01-13
PL182765B1 (pl) 2002-02-28
GR3031428T3 (en) 2000-01-31
ES2135981T3 (es) 1999-11-01

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