JPS6070511A - Magnetic head of double azimuth - Google Patents
Magnetic head of double azimuthInfo
- Publication number
- JPS6070511A JPS6070511A JP17797483A JP17797483A JPS6070511A JP S6070511 A JPS6070511 A JP S6070511A JP 17797483 A JP17797483 A JP 17797483A JP 17797483 A JP17797483 A JP 17797483A JP S6070511 A JPS6070511 A JP S6070511A
- Authority
- JP
- Japan
- Prior art keywords
- winding
- magnetic head
- head
- double azimuth
- core
- 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
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
- G11B5/17—Construction or disposition of windings
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、ビデオテープレコーダ（以下、ＶＴＲと略す
）に用いられるダブルアジマス磁気ヘッドに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a double azimuth magnetic head used in a video tape recorder (hereinafter abbreviated as VTR).
家庭用ＶＴＲでは、隣接記録トラック１定で、磁化方向
を異ならせるアジマス記録方式が採用されている。また
、スチル再生する場合には高速に変化する画像のブレを
防止するため、同一記録トラックを繰り返し走査するフ
ィールドスチル再生を行なうようにしてオシ、このため
に互ＬｎＫアジマス角の異なる２つのへラドギャップが
記録トラックの長手方向に近接して配列されて磁気ヘッ
ドが設けられているダブルアジマス磁気ヘッドが用いら
れる。In home VTRs, an azimuth recording method is adopted in which the magnetization directions are different for each adjacent recording track. In addition, when playing back stills, in order to prevent blurring of rapidly changing images, it is recommended to perform field still playback in which the same recording track is repeatedly scanned. A double azimuth magnetic head is used in which the magnetic head is provided with gaps arranged closely in the longitudinal direction of the recording track.
第１図は、従来のダブルアジマス磁気ヘッドの一例を示
す側面図であって、ヘッドベース１に取９つけられた２
つのヘッドチップのギャップ間距離Ｇ、は、７４２μ解
としている。また、Ｉコア４，５の幅１．は２００μｍ
としている。巻線６は、Ｃコア２，５にのみ巻かれてい
る。FIG. 1 is a side view showing an example of a conventional double azimuth magnetic head.
The gap distance G between the two head chips is set to 742μ. Also, the width of I cores 4 and 5 is 1. is 200μm
It is said that The winding 6 is wound only around the C cores 2 and 5.
ところが、強力な磁界（例えば、強電界地域のラジオ中
波等）が、Ｃコア２，３に飛び込むと、画質に影響を与
える程のＳ／Ｎ劣化が生じるという欠点があった。However, when a strong magnetic field (for example, a radio medium wave in a strong electric field area) enters the C cores 2 and 3, there is a drawback that S/N deterioration occurs to the extent that the image quality is affected.
かかる欠点に対しては、図２ （Ｐ）、 （ｈ）に示す
ように、Ｃコア３ターン、Ｉコア７ターンのバランス巻
線により、Ｃコアのみに１０ターンの片巻線に比べ、約
ｆ３ｄＢノイズ軽減を果した。To solve this problem, as shown in Figures 2 (P) and (h), balanced winding with 3 turns on the C core and 7 turns on the I core reduces the winding cost by approximately Achieved f3dB noise reduction.
しかしガがら、Ｉコア４，５にＣコアの巻線溝７と同様
に巻線溝を形成することは、Ｉコツ幅が２００μｍと薄
い為、顕著ガ磁気抵抗の増加がみられ、性能劣化する為
、実施不可能であった。However, forming a winding groove in the I cores 4 and 5 in the same way as the C core's winding groove 7 will cause a noticeable increase in magnetic resistance, resulting in performance deterioration, since the I core width is as thin as 200 μm. Therefore, it was impossible to implement.
ダブルアジマス磁気ヘッドにバランス巻線をする際に、
Ｉコア側の巻線を如何に行々うかが問題となった。When winding a double azimuth magnetic head with balance,
The problem was how to wind the I-core side.
本発明の目的は、上記従来技術の欠点を除き、かつ、量
産性に冨んだダブルアジマス磁気ヘッドを提供すること
にある。SUMMARY OF THE INVENTION An object of the present invention is to provide a double azimuth magnetic head which eliminates the drawbacks of the prior art described above and which is suitable for mass production.
〔発明の概要〕
この目的を達成する為、本発明は、従来の巻線溝にかわ
るものとして、Ｉコア側面を、ヘッドベースのスリット
部の外側に構成することにより、巻線ガイドを形成した
。[Summary of the Invention] In order to achieve this object, the present invention forms a winding guide by configuring the I-core side surface outside the slit portion of the head base, instead of the conventional winding groove. .
以下、本発明の実施例を図面につ−て説明する。第３図
は、本発明によるダブルアジマス磁気ヘッドの１実施例
を示す側面図であって、第１図と対応する部分は同一符
号としている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 3 is a side view showing one embodiment of the double azimuth magnetic head according to the present invention, and parts corresponding to those in FIG. 1 are given the same reference numerals.
第６図において、Ｉコア４の側面１０は、ヘッドベース
１に設けられたスリット部８の外側に、巻線６０線径φ
だけずらして構成している。とのへラドベースとヘッド
チップの間隔Ｓにより、巻線の下端が安定し、バランス
巻線が容易に実施できる。In FIG. 6, the side surface 10 of the I-core 4 has a winding 60 with a wire diameter φ
It is configured by shifting only. The spacing S between the helad base and the head chip stabilizes the lower end of the winding, making it easy to perform balanced winding.
このヘッドベース１とＩコア側面１００間隔Ｓは、巻線
６の線径φの１／２以下では、安定性が劣化する。When the distance S between the head base 1 and the I-core side surface 100 is less than 1/2 of the wire diameter φ of the winding 6, stability deteriorates.
また、本発明の他の実施例を第４図に示す。Further, another embodiment of the present invention is shown in FIG.
Ｉコア４の側面１０とへラドベース１のスリット部の間
隔Ｓは、前記の通りである。一方Ｉコア５は、ヘッドベ
ース１のスリット部に入シ込む形である。このＩコア５
の巻線は、第４図上方から巻線窓１１を通過した後、第
４図の裏側からスリットのＡ部を通す。次ＶＣＩコア４
が支持されている側のスリットエツジを案内体として、
空隙部９に比較的容易に巻き上げることができる。The distance S between the side surface 10 of the I-core 4 and the slit portion of the helad base 1 is as described above. On the other hand, the I core 5 is inserted into the slit of the head base 1. This I core 5
The winding wire passes through the winding window 11 from above in FIG. 4, and then passes through part A of the slit from the back side in FIG. NextVCI core 4
Use the slit edge on the supported side as a guide,
It can be rolled up into the cavity 9 relatively easily.
以上、本実施例にダブルアジマス磁気ヘッドのバランス
巻線の量産性を向上し、ノイズ飛び込みに対し、従来に
比べ８ｄＥ良好とすることができる。As described above, in this embodiment, the mass productivity of the balanced winding of the double azimuth magnetic head can be improved, and the noise dropout can be improved by 8 dE compared to the conventional one.
以上説明したようＫ、本発明によれば、従来のダブルア
ジマス磁気ヘッドに比して、ノイズ飛込みがｆ３ｄＢ少
１ｔ、−ｔバラフッ巻線ダブルアジマス磁気ヘッドの作
業効率が著しく改善される。As explained above, according to the present invention, the working efficiency of the double azimuth magnetic head with a flat winding of -t is significantly improved, with the noise jump being reduced by f3 dB compared to the conventional double azimuth magnetic head.
第１図は従来のダブルアジマス磁気ヘッドを示す側面図
、第２図（α）は、バランス巻線スタイルを示す図、第
２図＜ｂ＞は、ノイズ飛込量と、巻線スタイルの関係を
示す図、第３図、第４図は本発明のダブルアジマス磁気
ヘッドを示す側面図である。
１・・・ヘッドベース ２．３・・・Ｃコア４５・・・
Ｉコア ６・・・巻線
７・・・巻線溝 ８・・・スリット部
９・１．空隙 １ｏ・・・Ｉコア側面
１１・・・巻線窓 １２・・・スリットエッジ≧ １
回
嶌２図
′Ｌ３１１ｉｉ１
児４図Figure 1 is a side view showing a conventional double azimuth magnetic head, Figure 2 (α) is a diagram showing a balanced winding style, and Figure 2 <b> is the relationship between the amount of noise and the winding style. 3 and 4 are side views showing the double azimuth magnetic head of the present invention. 1...Head base 2.3...C core 45...
I core 6...Winding 7...Winding groove 8...Slit portion 9.1. Gap 1o... I core side 11... Winding window 12... Slit edge ≧ 1
Kaisho 2'L311ii1 Child 4
Claims (1)
搭載され、ギャップアジマス角が異なる２つの磁気へラ
ドチップと、該２つのへラドチップを近接して支持し、
該支持部間にスリットを設けたヘッドベースと巻線とか
らなるダブルアジマス磁気ヘッドにｂｉｎで、該２つの
へラドチップの近接対向するコア側端面の少なくとも一
方を、該スリット部の外側に配置し、該コア側面と該ス
リット縁部の距＠Ｓは該巻線の線径φの１Ａ以上とし、
かつ該２つのヘッドチップの対向するコア側面間の距離
１−ｃの１／２未満の範囲となるよう構成したことを特
徴とするダブルアジマス磁気ヘッド。Mounted on a rotating magnetic head cylinder of a video tape recorder, two magnetic herad chips having different gap azimuth angles, and supporting the two helad chips closely,
A double azimuth magnetic head consisting of a head base with a slit between the supporting parts and a winding is provided with a bin, and at least one of the closely opposing core side end surfaces of the two Herad chips is arranged outside the slit part. , the distance @S between the core side surface and the slit edge is 1A or more of the wire diameter φ of the winding,
A double azimuth magnetic head characterized in that the distance between the opposing core side surfaces of the two head chips is less than 1/2 of the distance 1-c.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17797483A JPS6070511A (en) | 1983-09-28 | 1983-09-28 | Magnetic head of double azimuth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17797483A JPS6070511A (en) | 1983-09-28 | 1983-09-28 | Magnetic head of double azimuth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6070511A true JPS6070511A (en) | 1985-04-22 |
Family
ID=16040330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17797483A Pending JPS6070511A (en) | 1983-09-28 | 1983-09-28 | Magnetic head of double azimuth |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6070511A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63193311A (en) * | 1987-02-06 | 1988-08-10 | Mitsubishi Electric Corp | Plural adjacent magnetic heads |
| JPH02149908A (en) * | 1988-11-30 | 1990-06-08 | Victor Co Of Japan Ltd | Double azimuth magnetic head |
| US20190084521A1 (en) * | 2017-09-18 | 2019-03-21 | Ford Global Technologies, Llc | Vehicle airbag assembly |
-
1983
- 1983-09-28 JP JP17797483A patent/JPS6070511A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63193311A (en) * | 1987-02-06 | 1988-08-10 | Mitsubishi Electric Corp | Plural adjacent magnetic heads |
| JPH02149908A (en) * | 1988-11-30 | 1990-06-08 | Victor Co Of Japan Ltd | Double azimuth magnetic head |
| US20190084521A1 (en) * | 2017-09-18 | 2019-03-21 | Ford Global Technologies, Llc | Vehicle airbag assembly |
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