EP0072655A2 - Münzabweisungsvorrichtung - Google Patents

Münzabweisungsvorrichtung Download PDF

Info

Publication number: EP0072655A2
Authority: EP; European Patent Office
Prior art keywords: coin; impedance; approach; detector; coils
Prior art date: 1981-08-10
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

EP82304182A

Other languages

English (en)

French (fr)

Other versions

EP0072655B1 (de

EP0072655A3 (en

Inventor

Makoto Tomozawa

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.)

Asahi Seiko Co Ltd

Original Assignee

Asahi Seiko 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.)

1981-08-10

Filing date

1982-08-09

Publication date

1983-02-23

1982-08-09 Application filed by Asahi Seiko Co Ltd filed Critical Asahi Seiko Co Ltd

1983-02-23 Publication of EP0072655A2 publication Critical patent/EP0072655A2/de

1983-12-07 Publication of EP0072655A3 publication Critical patent/EP0072655A3/en

1986-06-04 Application granted granted Critical

1986-06-04 Publication of EP0072655B1 publication Critical patent/EP0072655B1/de

Status Expired legal-status Critical Current

Links

Images

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

Definitions

the present invention relates to a coin rejector device of a type utilizing proximity switches.
Such a coin rejector device utilizing proximity switches is disclosed in a Japanese Patent Application Pubiication No. 16,527/1971.
the coin rejector device disclosed in the above Publication includes two proximity switches having detector coils in the form of generator or oscillator coils, respectively, each of which ceases its oscillation when the load impedance becomes lower than a predetermined value upon the approach of a coin to the detector coil and in which the oscillator of one of the proximity switches is preset to such an oscillation frequency that the load impedance upon the approach of the legal or acceptable coin to the detector coil becomes higher than any load impedance upon the approach of at least one of the illegal or unacceptable coins while the oscillator of the other proximity switch is preset to such an oscillation frequency that the load impedance upon the approach of the legal coin to the detector coil becomes lower than the load impedance upon the approach of the other illegal coins except the above at least one illegal coin.
such a known coin rejector device has a disadvantage that it can not select the legal coin from an illegal coin modified by drilling a small hole or holes therethrough so as to provide the same load impedance as that by the legal coin. For example, if an illegal brass coin has a small hole drilled therethrough, it provides the same impedance as that of the legal one-hundred yen nickel coin when the illegal brass coin approaches to the detector coil so that it could not prevent unfair use of such modified illegal coins.
the object of the invention is to provide a coin rejector device employing two or more proximity switches having detector coils in the form of generator or oscillator coils, respectively, each of which generates an output when the load impedance becomes lower than a threshold value upon the approach of a coin to the detector coil and in which the threshold value is preset to an impedance which is higher than that provided upon the approach of the legal coin to the detector coil for improving the coin selecting precision and preventing the unfair use of illegal coin having a hole.
Fig. 1 there is shown a coin detecting portion of the coin rejector device utilizing two proximity switches. It will be seen that detector coils 1 and 2 in the form of generator or oscillator coils, respectively, are fixedly arranged along a coin selecting passage 3 so that when a coin 4 inserted into the coin rejector device passes through the passage 3 in the direction as shown by an arrow, the impedance of each of the detector coils 1 and 2 is varied.
Fig. 2 there are shown impedance performance curves by illegal coins having the same diameter and thickness as that of the legal nickel coin and made of stainless steel (Su), iron (Fe), nickel silver (Ns), lead (Pb), and brass (Bs), while the impedance (Z) on the approach of the legal nickel coin to the detector is 1.
the oscillation frequency (f) of the detector coil without the approach of the coin is indicated on the abscissa axis and the impedance (Z) upon the approach of the coin to the detector preset at the oscillation frequency (f) is indicated on the ordinate axis.
the proximity switch S l has an output which is transmitted to an AND circuit through a delay circuit D 1 .
the legal nickel coin and the illegal coins made of brass, nickel silver and lead are detected.
the proximity switch S 2 When the impedance by the approach of the coin to .the second detector coil 2 is lower than the threshold value Z 2 , the proximity switch S 2 has then an output which is also transmitted to the AND circuit through a delay circuit D 2 . At this time, the legal nickel coin and the illegal coins made of iron and stainless steel are detected. Accordingly, the AND circuit has an output only when the inserted coin is the legal nickel coin.
the coin rejector device including two or more proximity switches each of which has an output when the impedance on the approach of the coin to the detector coil is lower than the threshold value and the threshold values being higher than the impedance on the approach of the legal coin to the detector coils so that it is possible to make a large difference between the impedance by the legal coin and the threshold value as shown in Fig. 2 and thus to prevent the coin selecting precision from affecting by any change of the impedance caused from the change of conditions on the approach of the coin to the detector coil and hence the position of the coin relative to the detector coil and further prevent the unfair use of illegal coin with a hole.

Landscapes

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

EP19820304182 1981-08-10 1982-08-09 Münzabweisungsvorrichtung Expired EP0072655B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP11766781U JPS5824870U (ja)	1981-08-10	1981-08-10	硬貨選別装置
JP117667/81U		1981-08-10

Publications (3)

Publication Number	Publication Date
EP0072655A2 true EP0072655A2 (de)	1983-02-23
EP0072655A3 EP0072655A3 (en)	1983-12-07
EP0072655B1 EP0072655B1 (de)	1986-06-04

Family

ID=14717297

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19820304182 Expired EP0072655B1 (de)	1981-08-10	1982-08-09	Münzabweisungsvorrichtung

Country Status (5)

Country	Link
EP (1)	EP0072655B1 (de)
JP (1)	JPS5824870U (de)
AU (1)	AU536534B2 (de)
DE (1)	DE3271552D1 (de)
HK (1)	HK28787A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1993022747A1 (en) *	1992-05-06	1993-11-11	Mars Incorporated	Coin validator

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH07120453B2 (ja) *	1989-02-17	1995-12-20	富士電機株式会社	電子式硬貨選別装置の硬貨返却信号発生装置
JP6175241B2 (ja) *	2013-01-31	2017-08-02	日本電産サンキョー株式会社	コイン状被検出体識別装置およびコイン状被検出体識別装置の制御方法
CN104919497B (zh) *	2013-01-31	2017-05-17	日本电产三协株式会社	硬币状被检测体识别装置以及硬币状被检测体识别装置的控制方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1283263A (fr) *	1960-12-20	1962-02-02	Signaux Entr Electriques	Sélecteur de jetons
US3373856A (en) *	1966-01-18	1968-03-19	Canadian Patents Dev	Method and apparatus for coin selection
JPS443281Y1 (de) *	1966-07-19	1969-02-06
US3870137A (en) *	1972-02-23	1975-03-11	Little Inc A	Method and apparatus for coin selection utilizing inductive sensors
JPS4927278U (de) *	1972-06-07	1974-03-08
DE2915719A1 (de) *	1979-04-19	1980-11-13	Pruemm Georg	Elektronischer muenzpruefer
GB2068621B (en) *	1980-02-06	1983-12-14	Mars Inc	Testing coins
GB9010526D0 (en) *	1990-05-10	1990-07-04	Unilever Plc	Cosmetic composition

1981
- 1981-08-10 JP JP11766781U patent/JPS5824870U/ja active Pending
1982
- 1982-08-03 AU AU86708/82A patent/AU536534B2/en not_active Ceased
- 1982-08-09 DE DE8282304182T patent/DE3271552D1/de not_active Expired
- 1982-08-09 EP EP19820304182 patent/EP0072655B1/de not_active Expired
1987
- 1987-04-09 HK HK28787A patent/HK28787A/xx unknown

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1993022747A1 (en) *	1992-05-06	1993-11-11	Mars Incorporated	Coin validator
US5609234A (en) *	1992-05-06	1997-03-11	Walker; Robert S.	Coin validator

Also Published As

Publication number	Publication date
EP0072655B1 (de)	1986-06-04
DE3271552D1 (en)	1986-07-10
EP0072655A3 (en)	1983-12-07
AU8670882A (en)	1983-04-14
JPS5824870U (ja)	1983-02-17
HK28787A (en)	1987-04-16
AU536534B2 (en)	1984-05-10

Legal Events

Date	Code	Title	Description
1982-12-23	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1983-02-23	AK	Designated contracting states	Designated state(s): DE FR GB IT NL SE
1983-10-07	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1983-11-02	17P	Request for examination filed	Effective date: 19830819
1983-12-07	AK	Designated contracting states	Designated state(s): DE FR GB IT NL SE
1986-03-12	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: ASAHI SEIKO KABUSHIKI KAISHA
1986-04-18	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1986-06-04	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): DE FR GB IT NL SE
1986-06-05	ITF	It: translation for a ep patent filed
1986-07-10	REF	Corresponds to:	Ref document number: 3271552 Country of ref document: DE Date of ref document: 19860710
1986-07-11	ET	Fr: translation filed
1987-04-07	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1987-04-07	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1987-05-27	26N	No opposition filed
1987-08-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 19870831 Year of fee payment: 6
1989-08-09	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Effective date: 19890809
1989-08-10	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: SE Effective date: 19890810
1990-03-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Effective date: 19900301
1990-04-04	GBPC	Gb: european patent ceased through non-payment of renewal fee
1990-04-17	NLV4	Nl: lapsed or anulled due to non-payment of the annual fee
1990-04-27	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Effective date: 19900427
1990-05-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Effective date: 19900501
1990-06-22	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST
1995-01-31	EUG	Se: european patent has lapsed	Ref document number: 82304182.7 Effective date: 19900418

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