GB2234620A - A coin selector with magnetic sensors - Google Patents
A coin selector with magnetic sensors Download PDFInfo
- Publication number
- GB2234620A GB2234620A GB9015330A GB9015330A GB2234620A GB 2234620 A GB2234620 A GB 2234620A GB 9015330 A GB9015330 A GB 9015330A GB 9015330 A GB9015330 A GB 9015330A GB 2234620 A GB2234620 A GB 2234620A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coin
- electromagnetic
- magnetic
- sensors
- coin selector
- 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- Withdrawn
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 33
- 230000005294 ferromagnetic effect Effects 0.000 claims abstract description 8
- 239000000956 alloy Substances 0.000 claims abstract description 4
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 4
- 230000003287 optical effect Effects 0.000 claims 1
- 238000005096 rolling process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 1
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
- G07D5/02—Testing the dimensions, e.g. thickness, diameter; Testing the deformation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Coins (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
A coin selector (1) comprises an inlet (2) for a coin (3) to roll along a channel guide (4) past three magnetic sensors (5, 6, 7) in turn. Between the three magnetic sensors (5, 6, 7) are two position detectors (8, 9). Each position detector (8) preferably comprises an infra-red light optic sensor and detects when the coin (3) first interferes with its light beam or ceases to interfere with its light beam and hence causes an associated sensor to take a reading when the coin (3) is in a predetermined position, reducing or eliminating error due to bouncing of the coin. The sensors test the coin for its diameter, cross section and alloy. One magnetic sensor is electromagnetic with a ferromagnetic core, one is electromagnetic with an air core and the third is electromagnetic with a ferromagnetic core of disperse magnetic field. <IMAGE>
Description
a k 1 A COIN SELECTOR This invention relates to a coin selector comprising
magnetic sensors. A particular application of the invention is to a coin selector comprising magnetic sensors for selecting or validating a coin according to the diameter, cross-section and alloy.
There is a known coin selector which comprises three magnetic sensors to measure the cross-section, diameter and alloy of coins. These magnetic sensors are located in a channel where the coins pass by the sensors, each sensor taking a reading when the coin passes in front of it or through it.
When the coins pass freely along the channel, there are difficulties in ensuring that each magnetic sensor always takes a reading when a coin is in a particular position relative to that sensor, because the coin tends to bounce or jump.
This produces errors which have to be accommodated, reducing the accuracy of measurement.
The present invention provides a coin selector according to each of the claims, to which reference is 2 directed.
The invention will be described by way of example, with reference to the drawings, wherein:- FIG. 1 is a diagrammatic front elevation of a coin selector embodying the invention; and FIG. 2 is a corresponding plan view.
Referring to the drawings, the illustrated coin selector 1 comprises an inlet 2 for coins like a coin 3, which rolls along a channel defined by a guide 4, past three magnetic sensors 5, 6 and 7 successively. The first magnetic sensor 5 is electromagnetic with a ferromagnetic core, the second magnetic sensor 6 is electromagnetic with an air core and the third magnetic sensor 7 is electromagnetic with a ferromagnetic core of disperse magnetic field. Two position detectors 8 and 9 are located in close proximity to the coin sensors 5, 6 and 7. That is, position detector 8 is arranged in between sensors 5 and 6, whilst position detector 9 is arranged in between sensors 6 and 7. Each position detector 8, 9 defines a point which the coin 3 arrives at, and then departs from, in that each position detector 8, 9 comprises a point light source, emitting a very narrow beam of light, and an infra-red light optic e 3 sensor. In this particular example, position detector 8 detects when the coin 3, rolling along the channel formed by guide 4, first interferes with its light.beam, to cause magnetic sensor 5 to take a reading; position detector 9 detects when the coin 3, rolling along the channel formed by guide 4, first interferes with its light beam, to cause magnetic sensor 6 to take a reading; position detector 9 then detects when the coin 3, rolling along the channel formed by guide 4, ceases to interfere with its light beam, to cause magnetic sensor 7 to take a reading. Hence the two position detectors 8 and 9 cause magnetic sensors 5, 6 and 7 each to take a reading when the coin 3 is in a predetermined position relative to the respective magnetic sensor, reducing or eliminating error due to bouncing of the coin.
4
Claims (9)
1. A coin selector comprising a plurality of magnetic sensors arranged for a coin to pass through, or by, each sensor in turn, and a plurality of position detectors arranged in proximity to the magnetic sensors, so that the coin arrives at, and then departs from, a position defined by each position detector respectively, each position detector being associated with a respective one of the sensors, each magnetic sensor being adapted and arranged to take a reading of the coin when the coin is detected as either arriving at, or departing from, the position defined by the associated one of the position detectors.
2. A coin selector as claimed in claim 1, wherein the magnetic sensors are adapted to test the coin for its diameter, cross-section and alloy.
3. A coin selector as claimed in claim 1 or 2, wherein the magnetic sensors are three in number and the position detectors are two in number, the position detectors being arranged each between a respective pair of the sensors.
( 1
4. A coin selector as claimed in claim 3, wherein one magnetic sensor is electromagnetic with a ferromagnetic core, another magnetic sensor is electromagnetic with an air core and the remaining magnetic sensor is electromagnetic with a ferromagnetic core of disperse magnetic field.
5. A coin selector as claimed in claim 3, wherein the first magnetic sensor is electromagnetic with a ferromagnetic core, the second magnetic sensor is electromagnetic with an air core and the third magnetic sensor is electromagnetic with a ferromagnetic core of disperse magnetic field.
6. A coin selector as claimed in any preceding claim, wherein each position detector defines a point which the coin arrives at and then departs from.
7. A coin selector as claimed in any preceding claim, wherein each position detector comprises an optical sensor.
8. A coin selector as claimed in any preceding claim, wherein each position detector comprises a source producing a narrow light beam.
9. A coin selector as claimed in any preceding claim, wherein each position detector comprises an infra-red light optic sensor.
Published 1991 at The Patent Offiec.StaLe House, 66/71 High Holborn, London WC I R47?. Further copies may be obtained from Sales Branch, Unit 6. Nine Mile Point, Cwmielinfach. Cross Keys. Newport. NPI 7HZ. Printed bv Multiplex techniques lid. St Mary Cray. Kent
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES19898902302U ES1011067Y (en) | 1989-07-12 | 1989-07-12 | IMPROVEMENTS IN THE READING OF MAGNETIC SENSORS IN COIN SELECTORS. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9015330D0 GB9015330D0 (en) | 1990-08-29 |
| GB2234620A true GB2234620A (en) | 1991-02-06 |
Family
ID=8262827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9015330A Withdrawn GB2234620A (en) | 1989-07-12 | 1990-07-12 | A coin selector with magnetic sensors |
Country Status (8)
| Country | Link |
|---|---|
| BE (1) | BE1005283A0 (en) |
| DE (1) | DE4021988A1 (en) |
| ES (1) | ES1011067Y (en) |
| FR (1) | FR2649819A1 (en) |
| GB (1) | GB2234620A (en) |
| IE (1) | IE902521A1 (en) |
| IT (1) | IT1240394B (en) |
| NL (1) | NL9001549A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5476168A (en) * | 1990-07-05 | 1995-12-19 | Microsystem Controls Pty Ltd | Coin validator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1405936A (en) * | 1971-08-16 | 1975-09-10 | Mars Inc | Coin selector |
| EP0066013A1 (en) * | 1981-06-03 | 1982-12-08 | International Standard Electric Corporation | Article recognition system and processor controlled system |
| GB2151062A (en) * | 1983-11-04 | 1985-07-10 | Mars Inc | Coin validator |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4349095A (en) * | 1977-02-19 | 1982-09-14 | P A Management Consultants Limited | Coin discriminating apparatus |
| DE3175370D1 (en) * | 1980-06-20 | 1986-10-30 | Plessey Overseas | Method of and apparatus for assessing coins |
| JPS5760268U (en) * | 1980-09-22 | 1982-04-09 | ||
| GB2094008B (en) * | 1981-02-11 | 1985-02-13 | Mars Inc | Improvements in and relating to apparatus for checking the validity of coins |
| DK158418C (en) * | 1985-11-27 | 1990-10-22 | Standard Electric Kirk | PROCEDURE FOR IDENTIFYING THE MOUNTS AND APPARATUS FOR USE IN EXERCISING THE PROCEDURE |
| FR2591781A1 (en) * | 1985-12-13 | 1987-06-19 | Jofemar Sa | ELECTRONIC MONEY SELECTOR FOR AUTOMATIC PRODUCT DISTRIBUTION MACHINES |
| ES8708074A1 (en) * | 1986-05-21 | 1987-09-01 | Azkoyen Ind Sa | A coin handling apparatus. |
-
1989
- 1989-07-12 ES ES19898902302U patent/ES1011067Y/en not_active Expired - Lifetime
-
1990
- 1990-07-06 NL NL9001549A patent/NL9001549A/en not_active Application Discontinuation
- 1990-07-11 FR FR9008855A patent/FR2649819A1/en not_active Withdrawn
- 1990-07-11 IE IE252190A patent/IE902521A1/en unknown
- 1990-07-11 BE BE9000708A patent/BE1005283A0/en not_active IP Right Cessation
- 1990-07-11 IT IT67529A patent/IT1240394B/en active IP Right Grant
- 1990-07-11 DE DE4021988A patent/DE4021988A1/en not_active Ceased
- 1990-07-12 GB GB9015330A patent/GB2234620A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1405936A (en) * | 1971-08-16 | 1975-09-10 | Mars Inc | Coin selector |
| EP0066013A1 (en) * | 1981-06-03 | 1982-12-08 | International Standard Electric Corporation | Article recognition system and processor controlled system |
| GB2151062A (en) * | 1983-11-04 | 1985-07-10 | Mars Inc | Coin validator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5476168A (en) * | 1990-07-05 | 1995-12-19 | Microsystem Controls Pty Ltd | Coin validator |
Also Published As
| Publication number | Publication date |
|---|---|
| BE1005283A0 (en) | 1993-06-15 |
| GB9015330D0 (en) | 1990-08-29 |
| NL9001549A (en) | 1991-02-01 |
| ES1011067Y (en) | 1992-04-01 |
| IT9067529A1 (en) | 1992-01-11 |
| IT1240394B (en) | 1993-12-10 |
| IT9067529A0 (en) | 1990-07-11 |
| FR2649819A1 (en) | 1991-01-18 |
| ES1011067U (en) | 1990-03-01 |
| DE4021988A1 (en) | 1991-01-17 |
| IE902521A1 (en) | 1991-02-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |