JPH027207A - Magnetic head core - Google Patents
Magnetic head coreInfo
- Publication number
- JPH027207A JPH027207A JP4260288A JP4260288A JPH027207A JP H027207 A JPH027207 A JP H027207A JP 4260288 A JP4260288 A JP 4260288A JP 4260288 A JP4260288 A JP 4260288A JP H027207 A JPH027207 A JP H027207A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnetic core
- core
- coil
- recording
- 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.)
- Pending
Links
- 230000004907 flux Effects 0.000 abstract description 6
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 description 6
- 239000012779 reinforcing material Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
- 229910000702 sendust Inorganic materials 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
- G11B5/2652—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track with more than one gap simultaneously operative
- G11B5/2654—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track with more than one gap simultaneously operative for recording or erasing
- G11B5/2655—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track with more than one gap simultaneously operative for recording or erasing with all the gaps disposed within the track or "guard band" between tracks, e.g. with erase gaps operative on track edges, with wide erase gap followed by narrow write gap
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/17—Construction or disposition of windings
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は走行する磁気媒体に対し記録、再生を行う磁気
ヘッドに関し、特にその磁気コアの構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic head that performs recording and reproduction on a traveling magnetic medium, and particularly to the structure of its magnetic core.
従来、この種の磁気ヘッドコアは、第４図に示すように
フェライト等の１つの磁気コア１３に１つの巻線１４が
巻かれており、ギャップ７′によって記録、再生を行う
構造となっていた。Conventionally, this type of magnetic head core has a structure in which one winding 14 is wound around one magnetic core 13 such as ferrite, and recording and reproduction are performed through a gap 7', as shown in FIG. .
上述した従来の磁気へラドコアは、記録時、再生時とも
全く同一のコア、巻線で行うため、読み出し時、特にト
ラック位置に対してコアがずれた場合、第５図に示すよ
うに、読み出そうとするトラックの磁束１０の他に、隣
接トラックからの磁束１１を読んでしまう、いわゆるク
ロストークという現象が起こり、また、読み出そうとす
るトラックの磁束１０も少なくなり、再生出力が低下す
るという欠点がある。The conventional magnetic helad core described above uses exactly the same core and windings for both recording and reproduction, so when reading, especially if the core is misaligned with respect to the track position, the reading error will occur, as shown in Figure 5. In addition to the magnetic flux 10 of the track to be read out, a so-called crosstalk phenomenon occurs in which the magnetic flux 11 from the adjacent track is read, and the magnetic flux 10 of the track to be read also decreases, resulting in a decrease in reproduction output. There is a drawback that it does.
本発明の目的は前記ａｍを解決した磁気へラドコアを提
供することにある。An object of the present invention is to provide a magnetic rad core that solves the above-mentioned problems.
上記目的を達成するため、本発明の磁気へラドコアにお
いては、第１の磁気コアの両側面に、非磁性層を介して
第２の磁気コアを有し、前記第１の磁気コアの記録、再
生ギャップを形成する２つの対向面と同一平面上に前記
第２の磁気コアの記録、再生ギャップを形成する２つの
対向面を有し、さらに前記第１の磁気コアと第２の磁気
コアの両方に鎖交する第１のコイルと、前記第１の磁気
コアのみに鎖交する第２のコイルを有するものである。In order to achieve the above object, the magnetic helad core of the present invention has a second magnetic core on both sides of the first magnetic core with a nonmagnetic layer interposed therebetween, and records the first magnetic core. The second magnetic core has two opposing surfaces forming a recording and reproducing gap on the same plane as the two opposing surfaces forming a reproducing gap, and the first magnetic core and the second magnetic core have two opposing surfaces that form a recording and reproducing gap. It has a first coil that interlinks with both, and a second coil that interlinks only with the first magnetic core.
次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の一実施例の斜視図である。FIG. 1 is a perspective view of an embodiment of the present invention.
本発明の磁気へラドコアは、フェライト等よりなる第１
の磁気コア１，１′にアルチック、ガラス等よりなる非
磁性補強材６，６′を接着し、前記非磁性補強材６，６
′を接着した磁気コア１．１′の両側面のうち、前記非
磁性補強材６．６′より媒体側の部分に、５ｉｎ２，１
１２０．等からなる非磁性層３，３′と、パーマロイ、
センダスト等からなる第２の磁気コア２，２′を蒸着、
スパッタ等により形成し、前記非磁性補強材６，６′と
非磁性層３，３′と第２の磁気コア２，２′を具備した
磁気コア１，１′をつき合せることにより形成される。The magnetic helad core of the present invention has a first core made of ferrite or the like.
Non-magnetic reinforcing materials 6, 6' made of AlTiC, glass, etc. are adhered to the magnetic cores 1, 1' of the non-magnetic reinforcing materials 6, 6.
Of both sides of the magnetic core 1.1' to which the
120. Non-magnetic layers 3, 3' consisting of permalloy, etc.
A second magnetic core 2, 2' made of sendust or the like is deposited,
It is formed by sputtering or the like, and is formed by abutting the magnetic cores 1, 1' comprising the nonmagnetic reinforcing materials 6, 6', the nonmagnetic layers 3, 3', and the second magnetic cores 2, 2'. .
７はギャップである。さらに、第２の磁気コア２，２′
が形成された部分に書き込み用巻線４が巻かれ、第２の
磁気コア２，２′が形成されていない部分の第１の磁気
コア１，１′に読み出し用巻線５が巻かれた構造となっ
ている。7 is a gap. Furthermore, the second magnetic core 2, 2'
The write winding 4 was wound around the portion where the magnetic cores 2 and 2' were formed, and the read winding 5 was wound around the first magnetic cores 1 and 1' where the second magnetic cores 2 and 2' were not formed. It has a structure.
なお、本実施例を浮上型ヘッドに搭載した実施例を第２
図に示す、８はヘッドスライダ−１９は本発明に係る磁
気ヘッドコアである。Note that this embodiment is mounted on a floating head in the second embodiment.
In the figure, numeral 8 denotes a head slider, and 19 denotes a magnetic head core according to the present invention.
本発明によれば、第３図に示すように書き込み時にはト
ラック幅が広くなり、読み出し時にはトラック幅が狭く
なり、記録媒体１２に対する記録幅１５が広いために、
読み出し時にトラック位置ずれが生じても出力の低下が
起こらず、また第２の磁気コア２がシールドの役目を果
たし、隣接ドックからの磁束が第１の磁気コア１を通ら
ないため、クロストークは抑えられる。According to the present invention, as shown in FIG. 3, the track width becomes wide during writing and becomes narrow during reading, and the recording width 15 for the recording medium 12 is wide.
Even if a track position shift occurs during reading, the output does not decrease, and the second magnetic core 2 acts as a shield, and the magnetic flux from the adjacent dock does not pass through the first magnetic core 1, so crosstalk is eliminated. It can be suppressed.
以上説明したように本発明によれば、クロストークを抑
えて再生出力を向上できる効果を有する。As described above, the present invention has the effect of suppressing crosstalk and improving reproduction output.
第１図は本発明の一実施例を示す斜視図、第２図は第１
図の磁気へラドコアを浮上型ヘッドスライダ−に搭載し
たときの斜視図、第３図は本発明の詳細な説明する断面
図、第４図は従来技術の問題点を説明する断面図である
。
１．１′・・・第１の磁気コア ２，２′・・・第２の
磁気コア３．３′・・・非磁性層 ４・・・書き
込み用巻線５・・・読み出し用巻線 ６，６′・・・
非磁性補強材７・・・ギャップ ８・・・ヘ
ッドスライダ−９・・・磁気ヘッドコア
ｌＯ・・・読み出しトラックの磁束FIG. 1 is a perspective view showing one embodiment of the present invention, and FIG. 2 is a perspective view showing one embodiment of the present invention.
FIG. 3 is a sectional view illustrating the present invention in detail, and FIG. 4 is a sectional view illustrating problems of the prior art. 1.1'...First magnetic core 2,2'...Second magnetic core 3.3'...Nonmagnetic layer 4...Writing winding 5...Reading winding 6,6'...
Non-magnetic reinforcing material 7... Gap 8... Head slider 9... Magnetic head core lO... Magnetic flux of read track
Claims (1)
の磁気コアを有し、前記第１の磁気コアの記録、再生ギ
ャップを形成する２つの対向面と同一平面上に前記第２
の磁気コアの記録、再生ギャップを形成する２つの対向
面を有し、さらに前記第１の磁気コアと第２の磁気コア
の両方に鎖交する第１のコイルと、前記第１の磁気コア
のみに鎖交する第２のコイルを有することを特徴とする
磁気ヘッドコア。1. A second magnetic core is placed on both sides of the first magnetic core via a non-magnetic layer.
The second magnetic core has a magnetic core on the same plane as two opposing surfaces forming a recording/reproducing gap of the first magnetic core.
a first coil having two opposing surfaces forming a recording/reproducing gap of the magnetic core and further interlinking with both the first magnetic core and the second magnetic core; A magnetic head core characterized in that it has a second coil that interlinks only with the second coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4260288A JPH027207A (en) | 1988-02-25 | 1988-02-25 | Magnetic head core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4260288A JPH027207A (en) | 1988-02-25 | 1988-02-25 | Magnetic head core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH027207A true JPH027207A (en) | 1990-01-11 |
Family
ID=12640598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4260288A Pending JPH027207A (en) | 1988-02-25 | 1988-02-25 | Magnetic head core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH027207A (en) |
-
1988
- 1988-02-25 JP JP4260288A patent/JPH027207A/en active Pending
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