JPS5582004A - Inspection unit for coin - Google Patents

Inspection unit for coin

Info

Publication number
JPS5582004A
JPS5582004A JP15525378A JP15525378A JPS5582004A JP S5582004 A JPS5582004 A JP S5582004A JP 15525378 A JP15525378 A JP 15525378A JP 15525378 A JP15525378 A JP 15525378A JP S5582004 A JPS5582004 A JP S5582004A
Authority
JP
Japan
Prior art keywords
coin
coils
high frequency
inspected
oscillator
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.)
Granted
Application number
JP15525378A
Other languages
Japanese (ja)
Other versions
JPS6013517B2 (en
Inventor
Isao Arai
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.)
Sanyo Vending Machine Co Ltd
Original Assignee
Sanyo Vending Machine Co Ltd
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 Sanyo Vending Machine Co Ltd filed Critical Sanyo Vending Machine Co Ltd
Priority to JP15525378A priority Critical patent/JPS6013517B2/en
Publication of JPS5582004A publication Critical patent/JPS5582004A/en
Publication of JPS6013517B2 publication Critical patent/JPS6013517B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Testing Of Coins (AREA)

Abstract

PURPOSE: To judge the propriety of coins based on the maximum frequency due to the sum of inductances of the both coils, by locating one pair of coils forming high frequency magnetic field opposingly to the both sides of inspected coin in series but in opposite phase connection.
CONSTITUTION: The path of the coil 8 formed with a pair of side walls 9, 10 is tilted to one side and the coin 11 in normal inspection is moved along the side wall 8. The coils 2 and 3 located at the side walls 9 and 10 so that they oppose to the front and back of the inspected coin 11, are connected in series and opposite phase, to which the output of the oscillator 1 oscillating with constant high frequency 200kHz or more is fed to form the high frequency AC magnetic field. When the inspected coin 11 passes through, since the inductance of the coils 2, 3 is changed with the skin effect, causing the frequency of the oscillator 1. Thus, the judgement units 6 and 7 can discriminate the correct coins.
COPYRIGHT: (C)1980,JPO&Japio
JP15525378A 1978-12-14 1978-12-14 coin inspection device Expired JPS6013517B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15525378A JPS6013517B2 (en) 1978-12-14 1978-12-14 coin inspection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15525378A JPS6013517B2 (en) 1978-12-14 1978-12-14 coin inspection device

Publications (2)

Publication Number Publication Date
JPS5582004A true JPS5582004A (en) 1980-06-20
JPS6013517B2 JPS6013517B2 (en) 1985-04-08

Family

ID=15601875

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15525378A Expired JPS6013517B2 (en) 1978-12-14 1978-12-14 coin inspection device

Country Status (1)

Country Link
JP (1) JPS6013517B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5078252A (en) * 1989-04-10 1992-01-07 Kabushiki Kaisha Nippon Conlux Coin selector
WO1998039621A1 (en) * 1997-03-05 1998-09-11 Vs Sensorik Gmbh Magnetic sensor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03114810U (en) * 1990-03-07 1991-11-26

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5078252A (en) * 1989-04-10 1992-01-07 Kabushiki Kaisha Nippon Conlux Coin selector
WO1998039621A1 (en) * 1997-03-05 1998-09-11 Vs Sensorik Gmbh Magnetic sensor

Also Published As

Publication number Publication date
JPS6013517B2 (en) 1985-04-08

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