JPS63291242A - Magneto-optical composite head - Google Patents
Magneto-optical composite headInfo
- Publication number
- JPS63291242A JPS63291242A JP62126525A JP12652587A JPS63291242A JP S63291242 A JPS63291242 A JP S63291242A JP 62126525 A JP62126525 A JP 62126525A JP 12652587 A JP12652587 A JP 12652587A JP S63291242 A JPS63291242 A JP S63291242A
- Authority
- JP
- Japan
- Prior art keywords
- magneto
- optical
- width
- core
- head
- 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
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 30
- 230000003287 optical effect Effects 0.000 claims abstract description 20
- 239000013307 optical fiber Substances 0.000 claims description 10
- 238000004804 winding Methods 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Inspection Of Paper Currency And Valuable Securities (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は紙幣などを磁気的及び光学的に識別する磁気光
学複合ヘッドに関するものであり、特に同ヘッドのコア
の構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a magneto-optical composite head for magnetically and optically identifying banknotes and the like, and particularly to the structure of the core of the head.
（従来技術）
本件出願人は先に第７図のような磁気光学複合ヘッドｌ
Ｏを開発した。これは記録媒体に描かれている磁気パタ
ーンと光学パターンとを同時に読み取るものであり、磁
気センサ１１の磁気検出ギャップ１２に光透過性弊磁性
材料で成形された光透過体（光学部材）１３を装着し、
この光学部材１３に光学データを読取る光ファイバ１４
を接続し、磁気センサ１１、光学部材１３等の外側を二
つのホルダー１５でカバーしてなるものである。(Prior Art) The present applicant previously proposed a magneto-optical composite head l as shown in FIG.
Developed O. This is to simultaneously read a magnetic pattern and an optical pattern drawn on a recording medium, and a light transmitting body (optical member) 13 made of a light transmitting magnetic material is placed in a magnetic detection gap 12 of a magnetic sensor 11. Put it on,
An optical fiber 14 for reading optical data into this optical member 13
The outside of the magnetic sensor 11, optical member 13, etc. is covered with two holders 15.
なお第７図の１６は磁気コア、１７は磁気コアに巻いた
コイルである。Note that 16 in FIG. 7 is a magnetic core, and 17 is a coil wound around the magnetic core.
（従来技術の問題点）
磁気光学複合ヘッドにより紙幣などを識別する場合、複
数個の磁気光学複合ヘッドｌＯを第１θ図のように横に
並べて（マルチヘッドにして）使用される。この場合、
ａ別精度を向上させるには隣合う磁気光学複合ヘッド１
０間の間隔りを狭くする必要がある。(Problems with Prior Art) When identifying banknotes or the like using a magneto-optical composite head, a plurality of magneto-optical composite heads 1O are used side by side (as a multi-head) as shown in FIG. 1θ. in this case,
To improve the accuracy of each a, the adjacent magneto-optical composite head 1
It is necessary to narrow the interval between zeros.
しかし従来の磁気光学複合ヘッドのコア１６は第９図の
ように、磁気検出ギャップ１ｚに配置されるギャップ配
置部１８と他の部分１９との幅が同じ（上から下まで幅
が均一）であるため、第７図のようにホルダー１５でカ
バーするとホルダー１５がコア１６の外側に突出する。However, in the core 16 of the conventional magneto-optical composite head, as shown in FIG. 9, the width of the gap arrangement part 18 disposed in the magnetic detection gap 1z and the other part 19 are the same (the width is uniform from top to bottom). Therefore, when the core 16 is covered with a holder 15 as shown in FIG. 7, the holder 15 protrudes to the outside of the core 16.
このため複数個の磁気光学複合ヘッドｌＯを第１Ｏ図の
ように横一列に並べるとホルダ−１５同士が接触して光
学部材１３間にどうしても隙間りができる。このため精
度の高い識別が困難でるという問題があった。For this reason, when a plurality of magneto-optical composite heads 1O are arranged horizontally in a row as shown in FIG. For this reason, there was a problem in that highly accurate identification was difficult.
また磁気光学複合へラドｌＯが大型になるという問題も
あった。There is also the problem that the magneto-optical composite RAD 1O becomes large.
（発明の目的）
本発明の目的は複数個の磁気光学複合ヘッドを横に並べ
ても隣り合う光学部材１３間に隙間ができないようにす
ると共に磁気光学複合ヘッドを小型化することにある。(Objective of the Invention) An object of the present invention is to prevent gaps from forming between adjacent optical members 13 even when a plurality of magneto-optic composite heads are arranged side by side, and to reduce the size of the magneto-optic composite head.
（問題点を解決するための手段）
本考案の磁気光学複合ヘッドは第１図、第４図のように
、磁気ヘッド本体２０の先端のギヤ、プ２１に、光学部
材２２が配置され、光学部材２２に光ファイバ束２３が
接合されてなる磁気光学複合ヘッド２４において、磁気
ヘッド本体２０のコア２５の先端のギャップ部２６の幅
を最も広くし他の部分の一部もしくは全部の幅をギャッ
プ部２６よ、り狭くして狭幅部２７を形成したことを特
徴とするものである。(Means for Solving the Problems) As shown in FIGS. 1 and 4, the magneto-optical composite head of the present invention has an optical member 22 disposed in a gear and a pulley 21 at the tip of a magnetic head body 20, and In a magneto-optical composite head 24 in which an optical fiber bundle 23 is bonded to a member 22, the gap portion 26 at the tip of the core 25 of the magnetic head body 20 is the widest, and the width of some or all of the other portions is set as the gap. This is characterized in that a narrow portion 27 is formed which is narrower than the portion 26 .
（作用）
第１図の磁気光学複合ヘッドは光ファイバ束２３をホル
ダー２８の側面に形成された横長穴２９から外に引き出
すようにしたものであり、第４図の磁気光学複合ヘッド
は光ファイバ束２３をホルダー２８の上面に形成された
横長穴３ｏから外に引き出すようにしたものである。(Function) The magneto-optical compound head shown in FIG. 1 is designed to pull out the optical fiber bundle 23 from a horizontally long hole 29 formed on the side surface of the holder 28, and the magneto-optic compound head shown in FIG. The bundle 23 is drawn out from a horizontally long hole 3o formed on the upper surface of the holder 28.
第１図の磁気光学複合ヘッドは第３図のコア２５と、光
ファイバ束２３が接合されている光学部材２２と、ホル
ダー２８とを第１図のように組立てることにより完成さ
れる。この場合第２図のようにコア２５の狭幅部２７と
ホルダー２８との間に隙間３１ができるので、光ファイ
バ束２３をその隙間３１を通してホルダー２８の側面に
形成された横長穴２９から外に引き出す。The magneto-optical composite head of FIG. 1 is completed by assembling the core 25 of FIG. 3, the optical member 22 to which the optical fiber bundle 23 is joined, and the holder 28 as shown in FIG. In this case, a gap 31 is created between the narrow part 27 of the core 25 and the holder 28 as shown in FIG. Pull it out.
第４図の磁気光学複合ヘッドは第６図のコア２５と、光
ファイバ束２３が接合されている光学部材２２と、ホル
ダー２８とを第４図のように組立てる。この場合第５図
のようにコア２５の狭幅部２７とホルダー２８との間に
隙間３１ができるので、光ファイバ束２３をその隙間３
１を通してホルダー２８の上面に形成された横長穴３０
から外に引き出す。The magneto-optical composite head shown in FIG. 4 is assembled by assembling the core 25 shown in FIG. 6, the optical member 22 to which the optical fiber bundle 23 is joined, and the holder 28 as shown in FIG. In this case, a gap 31 is created between the narrow part 27 of the core 25 and the holder 28 as shown in FIG.
1 and formed in the upper surface of the holder 28 through the oblong hole 30
pull it out.
（実施例）
第１図〜第６図は本考案の磁気光学複合ヘッドの実施例
である。(Example) FIGS. 1 to 6 show examples of the magneto-optical composite head of the present invention.
これらの図において、２０は磁気ヘッド本体、２１は同
本体の先端に形成されたギャップ、２２は非磁性光透過
材料で形成された光学部材、２３は光学部材に接合され
た光ファイバ束、２５は磁気ヘッド本体のコア、２６は
コアのギャップ部。In these figures, 20 is a magnetic head main body, 21 is a gap formed at the tip of the main body, 22 is an optical member formed of a non-magnetic light-transmitting material, 23 is an optical fiber bundle joined to the optical member, 25 26 is the core of the magnetic head body, and 26 is the gap between the cores.
２７はコアの狭幅部、２８は磁気ヘッド本体の外側をカ
バーするホルダー、２９．３０は横長穴。27 is the narrow part of the core, 28 is a holder that covers the outside of the magnetic head body, and 29.30 is an oblong hole.
３１はコアの狭幅部２７とホルダー２８との間に形成さ
れた隙間、３２はコアの外周に巻いたコイルである。31 is a gap formed between the narrow part 27 of the core and the holder 28, and 32 is a coil wound around the outer periphery of the core.
コア２５は先端のギヤ−２プ部２６の幅を最も広くし、
他の部分の一部もしくは全部の幅をギャップ部２６より
狭くして狭幅部２７としである。The core 25 has the widest gear 2 tap part 26 at the tip,
The width of some or all of the other parts is narrower than the gap part 26 to form a narrow part 27.
この幅の狭幅部２７の幅は例えばギャップ部２６の幅の
ｌ／２とする。The width of the narrow portion 27 is, for example, 1/2 of the width of the gap portion 26.
磁界の強さはコア２５の狭幅部２７の断面桔を従来品の
１７２にしても、その比が０．９９７９とほとんど変ら
ないため１巻！！数は従来と同じにできる。Even if the cross-sectional area of the narrow part 27 of the core 25 is 172 as in the conventional product, the strength of the magnetic field is almost the same at 0.9979, so it is only one turn! ! The number can remain the same as before.
（発明の効果） 本発明の磁気光学複合ヘッドは次のような効果がある。(Effect of the invention) The magneto-optical composite head of the present invention has the following effects.
（１）ホルダー２８が第２図、第５図のように狭幅部２
７に収まるので光学部材２２の外側に突出しない、この
ため磁気光学複合ヘッド２４が小型化される。(1) The holder 28 is attached to the narrow part 2 as shown in FIGS. 2 and 5.
7, so it does not protrude outside the optical member 22, and the magneto-optic composite head 24 is therefore miniaturized.
（２） ｒａ気光学複合ヘッド２４を第１Ｏ図のように
横一列に並べても隣り合う磁気光学複合ヘッド２４の光
学部材２２間に隙間ができないので制度の高い鑑別など
が可能となる。(2) Even if the RA optical composite heads 24 are arranged horizontally in a row as shown in FIG. 1O, there is no gap between the optical members 22 of adjacent magneto-optical composite heads 24, so that highly accurate identification is possible.
（３）コア２５に巻いたコイル３２とホルダー２８との
間に隙間３１ができるので、光ファイバ束２３をそのＦ
１２間３１を通してホルダー２８の外部に引き出すこと
ができる。このため光ファイバー２８を引き回し易く、
また同ファイバー２８に無理が加わらない。(3) A gap 31 is created between the coil 32 wound around the core 25 and the holder 28, so the optical fiber bundle 23 is
It can be drawn out of the holder 28 through the 12 spaces 31. Therefore, it is easy to route the optical fiber 28,
Further, no stress is applied to the fiber 28.
第１図は本発明の磁気光学複合ヘッドの一例を示す説明
図、第２図は第１図のヘッドの縦断説明図、第３図は第
１図のヘッドの分解図、第４図は本発明の磁気光学複合
ヘッドの他側を示す説明図、第５図は第４図のヘッドの
縦断説明図、第６図は第４図のヘッドの分解図、第７図
は従来の磁気光学複合ヘッドの説明図、第８図は第７図
のヘッドの分解図、第９図は同ヘッドの縦断説明図、第
１０図は従来の磁気光学複合ヘッドの使用説明図である
。
２０は磁気ヘッド本体
２１はギャップ
２２は光学部材
２３は光ファイバ束
２４は磁気光学複合ヘッド
２５はコア
２６はギャップ配置部
２７は狭幅部FIG. 1 is an explanatory view showing an example of the magneto-optical composite head of the present invention, FIG. 2 is a longitudinal cross-sectional view of the head in FIG. 1, FIG. 3 is an exploded view of the head in FIG. An explanatory diagram showing the other side of the magneto-optical composite head of the invention, FIG. 5 is a vertical cross-sectional diagram of the head of FIG. 4, FIG. 6 is an exploded view of the head of FIG. 4, and FIG. 7 is a conventional magneto-optical composite head. FIG. 8 is an exploded view of the head shown in FIG. 7, FIG. 9 is a vertical cross-sectional view of the same head, and FIG. 10 is an explanatory view of the use of a conventional magneto-optical composite head. 20 is a magnetic head main body 21 is a gap 22 is an optical member 23 is an optical fiber bundle 24 is a magneto-optical composite head 25 is a core 26 is a gap arrangement part 27 is a narrow part
Claims (1)
２２が配置され、光学部材２２に光ファイバ束２３が接
合されてなる磁気光学複合ヘッド２４において、磁気ヘ
ッド本体２０のコア２５の先端のギャップ部２１の幅を
最も広くし他の部分の一部もしくは全部の幅をギャップ
部２６より狭くして狭幅部２７を形成したことを特徴と
する磁気光学複合ヘッド。In a magneto-optical composite head 24 in which an optical member 22 is disposed in a gap 21 at the tip of the magnetic head body 20 and an optical fiber bundle 23 is joined to the optical member 22, the gap portion at the tip of the core 25 of the magnetic head body 20 is A magneto-optical composite head characterized in that a narrow part 27 is formed by making the width of the part 21 the widest and making part or all of the other part narrower than the gap part 26.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62126525A JP2565905B2 (en) | 1987-05-23 | 1987-05-23 | Magneto-optical composite head |
| US07/159,041 US4883950A (en) | 1987-05-23 | 1988-02-22 | Composite magnetic and optical head |
| CA000559519A CA1306055C (en) | 1987-05-23 | 1988-02-23 | Magnetooptic composite head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62126525A JP2565905B2 (en) | 1987-05-23 | 1987-05-23 | Magneto-optical composite head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63291242A true JPS63291242A (en) | 1988-11-29 |
| JP2565905B2 JP2565905B2 (en) | 1996-12-18 |
Family
ID=14937364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62126525A Expired - Fee Related JP2565905B2 (en) | 1987-05-23 | 1987-05-23 | Magneto-optical composite head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2565905B2 (en) |
-
1987
- 1987-05-23 JP JP62126525A patent/JP2565905B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2565905B2 (en) | 1996-12-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |