JP2804586B2 - Magnetic head and magnetic reproducing apparatus using the magnetic head - Google Patents
Magnetic head and magnetic reproducing apparatus using the magnetic headInfo
- Publication number
- JP2804586B2 JP2804586B2 JP4164190A JP4164190A JP2804586B2 JP 2804586 B2 JP2804586 B2 JP 2804586B2 JP 4164190 A JP4164190 A JP 4164190A JP 4164190 A JP4164190 A JP 4164190A JP 2804586 B2 JP2804586 B2 JP 2804586B2
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- core
- head chip
- head
- magnetic
- distance
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Description
【発明の詳細な説明】 （イ） 産業上の利用分野 本発明はVTR（ビデオテープレコーダ）等に使用され
る磁気ヘッド及び該磁気ヘッドを用いた磁気再生装置に
関する。The present invention relates to a magnetic head used for a VTR (video tape recorder) or the like, and a magnetic reproducing apparatus using the magnetic head.
（ロ） 従来の技術 近年、家庭用のVTR等では、スチル再生、スロー再
生、サーチ等の特殊再生を行う場合、ノイズの少ない良
好な再生を行うために、第５図に示すように回転シリン
ダに一対のダブルアジマスヘツドを180゜対向して配置
している。第５図中、（１）は矢印Ａ方向に進行する磁
気テープ、（２）は矢印Ｂ方向に回転する回転シリン
ダ、（３）（３）は前記回転シリンダ（２）に取り付け
られた一対のダブルアジマス磁気ヘッドである。前記ダ
ブルアジマス磁気ヘッド（３）（３）は夫々互いに異な
るアジマス角を有する第１、第２ヘッドチップ（４）
（５）により構成されている。前記回転シリンダ（２）
の回転速度は前記磁気テープ（１）の進行速度よりもは
るかに速く前記ダブルアジマス磁気ヘッド（３）に対す
る前記磁気テープ（１）の相対進行方向は矢印Ｃ方向と
なる。即ち、前記ダブルアジマス磁気ヘッド（３）のう
ち第１ヘッドチップ（４）は磁気テープ（１）が進入す
る先行側ヘッドとなり、第２ヘッドチップ（５）は磁気
テープ（１）が退出する後行側ヘッドとなる。(B) Conventional technology In recent years, in a home VTR or the like, when performing special reproduction such as still reproduction, slow reproduction, and search, a rotary cylinder as shown in FIG. A pair of double azimuth heads are arranged 180 ° opposite each other. In FIG. 5, (1) is a magnetic tape that advances in the direction of arrow A, (2) is a rotating cylinder that rotates in the direction of arrow B, and (3) and (3) are a pair of magnetic cylinders attached to the rotating cylinder (2). Double azimuth magnetic head. The double azimuth magnetic heads (3) and (3) have first and second head chips (4) having different azimuth angles from each other.
(5). The rotary cylinder (2)
Is much faster than the traveling speed of the magnetic tape (1), and the relative traveling direction of the magnetic tape (1) to the double azimuth magnetic head (3) is in the direction of arrow C. That is, of the double azimuth magnetic head (3), the first head chip (4) is a leading head into which the magnetic tape (1) enters, and the second head chip (5) is after the magnetic tape (1) exits. Row side head.
第５図は第６図に示すダブルアジマス磁気ヘッドを拡
大して示す図である。第１ヘッドチップ（４）はフェラ
イトよりなる第１コア（６）と第２コア（７）とから
り、両コア（６）（７）の衝き合わせ部には第１作動ギ
ャップ（８）が形成されている。また、第２ヘッドチッ
プ（５）も同様にフェライトよりになる第１コア（９）
と第２コア（10）とから成り、両コア（９）（10）の衝
き合わせ部には第２作動ギャップ（11）が形成されてい
る。前記第２コア（７）（10）には夫々巻線溝（12）
（12）が設けられており、該巻線溝（12）（12）を通し
て前記第１コア（６）（９）、第２コア（７）（10）の
周りにはコイル（13）（13）（13）（13）が巻回されて
いる。（14）はコア接合用のガラス、（15）はヘッドベ
ースである。FIG. 5 is an enlarged view of the double azimuth magnetic head shown in FIG. The first head chip (4) is composed of a first core (6) made of ferrite and a second core (7), and a first working gap (8) is formed at an abutting portion of both cores (6) and (7). Is formed. Also, the first core (9), which is also made of ferrite, for the second head chip (5)
And a second core (10), and a second working gap (11) is formed at an abutting portion of the cores (9) and (10). Each of the second cores (7) and (10) has a winding groove (12).
A coil (13) (13) (13) is provided around the first core (6) (9) and the second core (7) (10) through the winding groove (12) (12). ) (13) and (13) are wound. (14) is a glass for core bonding, and (15) is a head base.
上記ダブルアジマス磁気ヘッドでは、特開昭62−2393
11号公報（G11B5/53）に示すように前記第１ヘッドチッ
プ（４）における第１作動ギャップ（８）から第１コア
（６）の第２ヘッドチップ側端部（6a）までの距離Ix
と、第２ヘッドチップ（５）における第２作動ギャップ
（11）から第１コア（９）の第１ヘッドチップ側端部
（9a）までの距離Iyとは等しい。In the double azimuth magnetic head described above,
No. 11 (G11B5 / 53), the distance Ix from the first working gap (8) in the first head chip (4) to the second head chip side end (6a) of the first core (6).
And the distance Iy from the second working gap (11) in the second head chip (5) to the first head chip side end (9a) of the first core (9) is equal.
しかし乍ら、上述の磁気ヘッドを用いた磁気再生装置
では、先行側の第１ヘッドチップ（４）の磁気テープ
（１）に対する当りが悪く、所定の信号を再生した場
合、第７図に示すように再生波形にエンベロープ落ち
（16）が生じる。また、このようなダブルアジマス磁気
ヘッドでは、第１、第２ヘッドチップ（４）（５）を非
常に近接した間隔（例えばNTSCの場合第１、第２作動ギ
ャップ（８）（11）のギャップ間距離ｌを740μｍ、PAL
の場合ギャップ間距離ｌを620μｍ）に配置する必要が
ある。このため、第１、第２ヘッドチップ（４）（５）
のチップ間距離ｍは小さくなりコイル（13）の巻回が困
難になる。また、前述の距離Ix、Iyを小さくすることに
より、チップ間距離ｍを大きくした場合、コイル（13）
は巻回し易くなるが、再生出力が低下するという問題が
生じる。However, in the magnetic reproducing apparatus using the above-described magnetic head, the first head chip (4) on the leading side has a poor contact with the magnetic tape (1), and when a predetermined signal is reproduced, it is shown in FIG. As described above, an envelope drop (16) occurs in the reproduced waveform. Further, in such a double azimuth magnetic head, the first and second head chips (4) and (5) are very close to each other (for example, in the case of NTSC, the gaps of the first and second working gaps (8) and (11)). The distance l is 740μm, PAL
In this case, it is necessary to arrange the gap distance 1 at 620 μm). Therefore, the first and second head chips (4) and (5)
The distance m between the chips becomes small, and it becomes difficult to wind the coil (13). When the distance m between chips is increased by decreasing the distances Ix and Iy, the coil (13)
Is easy to wind, but there is a problem that the reproduction output is reduced.
（ハ） 発明が解決しようとする課題 本発明は上記従来例の欠点に鑑み為されたものであ
り、ヘッドコイルの巻回を困難にすること無しに出力特
性を向上させた磁気ヘッド及び磁気再生装置を提供する
ことを目的とするものである。(C) Problems to be Solved by the Invention The present invention has been made in view of the above-mentioned drawbacks of the conventional example, and has a magnetic head and a magnetic reproducing device whose output characteristics are improved without making it difficult to wind a head coil. It is intended to provide a device.
（ニ） 課題を解決するための手段 本発明はコイルが巻回された第１コアと第２コアとを
衝き合わせ、該衝き合わせ部に第１作動ギャップを形成
してなる第１ヘッドチップと、コイルが巻回された第１
コアと第２コアとを衝き合わせ、該衝き合わせ部に第２
作動ギャップを形成してなる第２ヘッドチップとを前記
第１コア同士が所定のチップ間距離を隔てて対向し、磁
気媒体の進入側に前記第１ヘッドチップが位置し、退出
側に前記第２ヘッドチップが位置するように配置してな
る磁気ヘッドにおいて、前記第１ヘッドチップにおける
前記第１作動ギャップから前記第１コアの第２ヘッドチ
ップ側端部までの距離Ixを、前記第２ヘッドチップにお
ける前記第２作動ギャップから前記第１コアの第１ヘッ
ドチップ側端部までの距離Iyよりも大きくしたことを特
徴とする。(D) Means for Solving the Problems The present invention relates to a first head chip formed by abutting a first core having a coil wound thereon and a second core and forming a first working gap in the abutting portion. , The first of which the coil is wound
The core and the second core are brought into contact with each other, and
The first cores are opposed to a second head chip having an operation gap at a predetermined chip distance, the first head chip is located on the ingress side of the magnetic medium, and the second head chip is located on the exit side. In a magnetic head having two head chips arranged thereon, a distance Ix from the first operating gap in the first head chip to an end of the first core on the second head chip side is determined by the second head chip. The distance from the second working gap in the chip to the end of the first core on the first head chip side is larger than Iy.
また、本発明はコイルが巻回された第１コアと第２コ
アとを衝き合わせ、該衝き合わせ部に第１作動ギャップ
を形成してなる第１ヘッドチップと、コイルが巻回され
た第１コアと第２コアとを衝き合わせ、該衝き合わせ部
に第２作動ギャップを形成してなる第２ヘッドチップと
が前記第１コア同士が所定のチップ間距離を隔てて対向
するように配置され、前記第１ヘッドチップにおける前
記第１作動ギャップから前記第１コアの第２ヘッドチッ
プ側端部までの距離Ixが前記第２ヘッドチップにおける
前記第２作動ギャップから前記第１コアの第１ヘッドチ
ップ側端部までの距離Iyより大きい磁気ヘッドを備えた
磁気再生装置であって、前記第１ヘッドチップが磁気媒
体の進入する先行側に位置し、前記第２ヘッドチップが
磁気媒体の退出する後行側に位置するように前記磁気ヘ
ッドを回転シリンダに装着したことを特徴とする。The present invention also provides a first head chip having a first core having a coil wound thereon and a first operating gap formed at the abutting portion, and a first head having a coil wound thereon. A first core and a second core are abutted, and a second head chip having a second working gap formed at the abutting portion is disposed such that the first cores face each other with a predetermined inter-chip distance. The distance Ix from the first working gap in the first head chip to the end of the first core on the second head chip side is equal to the first working distance of the first core from the second working gap in the second head chip. What is claimed is: 1. A magnetic reproducing apparatus comprising: a magnetic head having a distance greater than a distance Iy from a head chip side end, wherein the first head chip is located on a leading side of a magnetic medium, and the second head chip is moved out of the magnetic medium. After The magnetic head is mounted on a rotary cylinder so as to be positioned on the row side.
（ホ） 作用 上述の磁気ヘッドでは、磁気媒体の進入側に位置する
第１ヘッドチップの第１コアの寸法が大きいため、再生
波形のエンベロープ落ちが抑えられ、第２ヘッドチップ
の第１コアの寸法が小さいため、第１、第２ヘッドチッ
プのチップ間距離が小さくなり、コイルの巻回が容易に
なる。(E) Function In the above-described magnetic head, since the size of the first core of the first head chip located on the entrance side of the magnetic medium is large, the fall of the envelope of the reproduced waveform is suppressed, and the first core of the second head chip is reduced. Since the dimensions are small, the distance between the first and second head chips is small, and the coil can be easily wound.
また、上述の磁気再生装置では、上記磁気ヘッドを備
えているため、再生特性が良く、しかもヘッドコイルの
巻回が行い易くなる、製造が容易になる。In addition, since the above-described magnetic reproducing apparatus includes the above-described magnetic head, the reproducing characteristics are good, and the winding of the head coil is facilitated, and the manufacturing is facilitated.
（ヘ） 実施例 第１図は本実施例のダブルアジマス磁気ヘッドの上面
図、第２図は上記ダブルアジマス磁気ヘッドをテープ摺
接面側から観た図であり、第６図と同一部分には同一符
号を付し、その説明は割愛する。(F) Embodiment FIG. 1 is a top view of the double azimuth magnetic head of the present embodiment, and FIG. 2 is a view of the double azimuth magnetic head as viewed from the tape sliding surface side. Are denoted by the same reference numerals, and description thereof is omitted.
本実施例のダブルアジマス磁気ヘッドでは、第１ヘッ
ドチップ（４）における第１作動ギャップ（８）から第
１コア（６）の第２ヘッドチップ側端部（6a）までの距
離Ix、即ち、第１コア（６）のコア幅Ixは200μｍ、第
２ヘッドチップ（５）における第２作動ギャップ（11）
から第１コア（９）の第１ヘッドチップ側端部（9a）ま
での距離Iy、即ち、第１コア（９）のコア幅Iyは150μ
ｍである。また、第１、第２第１作動ギャップ（８）
（11）のギャップ間距離ｌは620μｍ、第１、第２ヘッ
ドチップ（４）（５）のチップ間距離ｍは270μｍであ
る。また、第２コア（７）（10）のコア幅Cx、Cyは共に
1.2mmである。In the double azimuth magnetic head of this embodiment, the distance Ix from the first working gap (8) in the first head chip (4) to the end (6a) of the first core (6) on the second head chip side, that is, The core width Ix of the first core (6) is 200 μm, and the second working gap (11) in the second head chip (5)
The distance Iy from the first core (9) to the first head chip side end (9a) of the first core (9), that is, the core width Iy of the first core (9) is 150 μm.
m. A first and a second first operation gap (8);
The distance l between the gaps in (11) is 620 μm, and the distance m between the chips of the first and second head chips (4) and (5) is 270 μm. The core widths Cx and Cy of the second cores (7) and (10) are both
1.2 mm.
次に、後行側の第２ヘッドチップ（５）の第１コア
（９）のコア幅Iyを200μｍで一定とし、先行側の第１
ヘッドチップ（４）の第１コア（６）のコア幅Ixを変化
させた時の前記第１ヘッドチップ（４）からの再生波形
のエンベロープ落ちと、先行側の第１ヘッドチップ
（４）の第１コア（６）のコア幅Ixを200μｍで一定と
し、後行側の第２ヘッドチップ（５）の第１コア（９）
のコア幅Iyを変化させた時の前記第２ヘッドチップ
（５）からの再生波形のエンベロープ落とを測定し、そ
の結果を第３図に示す。尚、エンブロープ落ちは第７図
における20log10 A/Bであり、エンブロープ落ちが2dB以
下の範囲では、VTR用磁気ヘッドとして実用上問題はな
い。Next, the core width Iy of the first core (9) of the second head chip (5) on the succeeding side is fixed at 200 μm,
When the core width Ix of the first core (6) of the head chip (4) is changed, the envelope of the reproduced waveform from the first head chip (4) drops and the first head chip (4) on the leading side changes. The core width Ix of the first core (6) is fixed at 200 μm, and the first core (9) of the second head chip (5) on the succeeding side.
The envelope drop of the reproduced waveform from the second head chip (5) when the core width Iy was changed was measured, and the result is shown in FIG. The drop of the envelope is 20 log 10 A / B in FIG. 7. If the drop of the envelope is 2 dB or less, there is no practical problem as a magnetic head for a VTR.
第３図から判るように、先行側の第１ヘッドチップ
（４）では第１コア（６）のコア幅Ixが150μｍよりも
小さくなるとエンベロープ落ちが2dB以上となり実用上
問題が生じるが、後行側の第２ヘッドチップ（５）では
第１コア（９）のコア幅Iyが80μｍより小さくなるまで
実用上問題は生じない。即ち、第１、第２作動ギャップ
（８）（11）のギャップ間距離ｌが一定の場合、コア幅
IxとIyとの関係をIx＞Iyとすることにより再生時のエン
ベロープ落ちを大きくすることなしに、第１、第２ヘッ
ドチップ（４）（５）のチップ間距離ｍを大きくするこ
とが出来、コイル（13）の巻回が容易になる。As can be seen from FIG. 3, in the first head chip (4) on the leading side, when the core width Ix of the first core (6) is smaller than 150 μm, the envelope drop is 2 dB or more, which causes a problem in practical use. In the second head chip (5) on the side, there is no practical problem until the core width Iy of the first core (9) becomes smaller than 80 μm. That is, when the distance l between the first and second working gaps (8) and (11) is constant, the core width
By setting the relationship between Ix and Iy to be Ix> Iy, the distance m between the first and second head chips (4) and (5) can be increased without increasing the fall of the envelope during reproduction. The winding of the coil (13) becomes easy.
また、次に後行側の第２ヘッドチップ（５）の第１コ
ア（９）のコア幅Iyを200μｍで一定とし、先行側の第
１ヘッドチップ（４）の第１コア（６）のコア幅Ixを変
化させた時の前記第１ヘッドチップ（４）からの再生出
力の出力レベルと、先行側の第１ヘッドチップ（４）の
第１コア（６）のコア幅Ixを200μｍで一定とし、後行
側の第２ヘッドチップ（５）の第１コア（９）のコア幅
Iyを変化させた時の前記第２ヘッドチップ（５）からの
再生出力の出力レベルとを測定し、その結果を第４図に
示す。尚、出力レベルはコア幅Ix、或いはIyが300μｍ
の時の出力値をOdB（基準値）として示したものであ
り、出力レベルの低下が1dB以内の範囲では、VTR用磁気
ヘッドとして実用上問題はない。Next, the core width Iy of the first core (9) of the second head chip (5) on the succeeding side is fixed at 200 μm, and the first core (6) of the first head chip (4) on the preceding side is fixed. The output level of the reproduction output from the first head chip (4) when the core width Ix is changed and the core width Ix of the first core (6) of the first head chip (4) on the leading side are set to 200 μm. Core width of the first core (9) of the second head chip (5) on the trailing side
The output level of the reproduction output from the second head chip (5) when Iy was changed was measured, and the result is shown in FIG. The output level is 300 μm for core width Ix or Iy.
The output value at the time is shown as OdB (reference value), and there is no practical problem as a magnetic head for a VTR within a range where the output level decreases within 1 dB.
第４図から判るように第１ヘッドチップ（４）、第２
ヘッドチップ（５）共に第１コア（６）（９）のコア幅
Ix、Iyが135μｍ以上では、出力レベルの低下が1dB以下
であり実用上問題はない。As can be seen from FIG. 4, the first head chip (4), the second
The core width of the first core (6) (9) for both the head chip (5)
When Ix and Iy are 135 μm or more, the output level decreases by 1 dB or less, and there is no practical problem.
上述の本実施例のダブルアジマス磁気ヘッドでは、第
１ヘッドチップ（４）の第１コア（６）のコア幅Ixを20
0μｍ、第２ヘッドチップ（５）の第２コア（９）のコ
ア幅Iyを150μｍとして、先行側の第１ヘッドチップ
（４）の第１コア（６）のコア幅Ixを後行側の第２ヘッ
ドチップ（５）の第１コア（９）のコア幅Iyよりも大き
くすることにより、再生波形のエンベロープ落ちを抑
え、しかも第１、第２ヘッドチップ（４）（５）のチッ
プ間距離ｍを270μｍと十分に確保してコイル（13）の
巻回を容易にしている。また、第１、第２ヘッドチップ
（４）（５）共に第１コア（６）（９）のコア幅Ix、Iy
は135μｍ以上あり、出力レベルの低下も少ない。In the above-described double azimuth magnetic head of the present embodiment, the core width Ix of the first core (6) of the first head chip (4) is set to 20.
0 μm, the core width Iy of the second core (9) of the second head chip (5) is 150 μm, and the core width Ix of the first core (6) of the first head chip (4) on the leading side is set on the following side. By making the core width Iy of the first core (9) of the second head chip (5) larger, the fall of the envelope of the reproduced waveform is suppressed, and the distance between the first and second head chips (4) and (5) is reduced. The distance m is sufficiently secured to be 270 μm to facilitate winding of the coil (13). The core widths Ix and Iy of the first cores (6) and (9) for both the first and second head chips (4) and (5).
Is 135 μm or more, and there is little decrease in the output level.
また、本実施例の磁気ヘッドを備えたVTRでは、第１
図及び第２図に示すダブルアジマス磁気ヘッド（３）が
第５図に示すような向きで回転シリンダ（２）に接着さ
れており、再生時の再生波形のエンベロープ落ち及び再
生出力レベルの低下は抑えられ、良好な再生を行うこと
が出来る。In the VTR equipped with the magnetic head of the present embodiment, the first
The double azimuth magnetic head ( 3 ) shown in FIGS. 2 and 3 is adhered to the rotating cylinder (2) in the direction shown in FIG. 5, and the fall of the envelope of the reproduction waveform and the decrease of the reproduction output level during reproduction are prevented. Suppressed and good reproduction can be performed.
（ト） 発明の効果 本発明に依れば、コイルの巻回を困難にすることなし
に出力特性が向上した磁気ヘッドを提供し得る。(G) Effects of the Invention According to the present invention, it is possible to provide a magnetic head having improved output characteristics without making winding of a coil difficult.
また、本発明に依れば、出力特性が良く、しかも製造
が容易である磁気再生装置を提供し得る。Further, according to the present invention, it is possible to provide a magnetic reproducing apparatus which has good output characteristics and is easy to manufacture.
第１図及び第２図は本発明に係り、第１図はダブルアジ
マス磁気ヘッドの上面図、第２図はダブルアジマス磁気
ヘッドを媒体摺接面側から観た図である。第３図は磁気
ヘッドの第１コアのコア幅による再生波形のエンベロー
プ落ちの変化を示す図、第４図は磁気ヘッドの第１コア
のコア幅による再生出力の出力レベルの変化を示す図、
第５図は回転シリンダを示す図、第６図は従来のダブル
アジマス磁気ヘッドの上面図、第７図は再生波形のエン
ブロープ落ちを示す図である。 （１）……磁気テープ（磁気媒体）、（２）……回転シ
リンダ、（３）……ダブルアジマス磁気ヘッド、（４）
……第１ヘッドチップ、（５）……第２ヘッドチップ、
（６）……第１コア、（6a）……第２ヘッドチップ側端
部、（７）……第２コア、（８）……第１作動ギャッ
プ、（９）……第１コア、（9a）……第１ヘッドチップ
側端部、（10）……第２コア、（11）……第２作動ギャ
ップ、（13）……コイル。1 and 2 relate to the present invention. FIG. 1 is a top view of a double azimuth magnetic head, and FIG. 2 is a view of the double azimuth magnetic head as viewed from the side where the medium slides. FIG. 3 is a diagram showing a change in an envelope fall of a reproduction waveform depending on a core width of a first core of a magnetic head; FIG. 4 is a diagram showing a change of an output level of a reproduction output depending on a core width of the first core of the magnetic head;
FIG. 5 is a view showing a rotary cylinder, FIG. 6 is a top view of a conventional double azimuth magnetic head, and FIG. 7 is a view showing the falling of an envelope of a reproduced waveform. (1): magnetic tape (magnetic medium); (2): rotating cylinder; ( 3 ): double azimuth magnetic head; (4)
... First head chip, (5) second head chip,
(6)... First core, (6a)... Second head chip side end, (7)... Second core, (8)... First working gap, (9). (9a)... First head chip side end, (10)... Second core, (11)... Second working gap, (13).
Claims (2)
を衝き合わせ、該衝き合わせ部に第１作動ギャップを形
成してなる第１ヘッドチップと、コイルが巻回された第
１コアと第２コアとを衝き合わせ、該衝き合わせ部に第
２作動ギャップを形成してなる第２ヘッドチップとを前
記第１コア同士が所定のチップ間距離を隔てて対向し、
磁気媒体の進入側に前記第１ヘッドチップが位置し、退
出側に前記第２ヘッドチップが位置するように配置して
なる磁気ヘッドにおいて、前記第１ヘッドチップにおけ
る前記第１作動ギャップから前記第１コアの第２ヘッド
チップ側端部までの距離Ixを、前記第２ヘッドチップに
おける前記第２作動ギャップから前記第１コアの第１ヘ
ッドチップ側端部までの距離Iyよりも大きくしたことを
特徴とする磁気ヘッド。1. A first head chip having a first core having a coil wound thereon and a first working gap formed at the abutting portion, the first head chip having a first working gap formed at the abutting portion, and a first head chip having a coil wound thereon. A first core and a second core are abutted, and a second head chip having a second working gap formed at the abutting portion is opposed to the first core at a predetermined chip distance;
In a magnetic head in which the first head chip is located on an ingress side of a magnetic medium and the second head chip is located on an exit side, the first operation gap in the first head chip is used for the second head chip. The distance Ix between the one core and the end of the second head chip on the side of the second head chip is larger than the distance Iy from the second working gap of the second head chip to the end of the first core on the side of the first head chip. Characteristic magnetic head.
を衝き合わせ、該衝き合わせ部に第１作動ギャップを形
成してなる第１ヘッドチップと、コイルが巻回された第
１コアと第２コアとを衝き合わせ、該衝き合わせ部に第
２作動ギャップを形成してなる第２ヘッドチップとが前
記第１コア同士が所定のチップ間距離を隔てて対向する
ように配置され、前記第１ヘッドチップにおける前記第
１作動ギャップから前記第１コアの第２ヘッドチップ側
端部までの距離Ixが前記第２ヘッドチップにおける前記
第２作動ギャップから前記第１コアの第１ヘッドチップ
側端部までの距離Iyより大きい磁気ヘッドを備えた磁気
再生装置であって、前記第１ヘッドチップが磁気媒体の
進入する先行側に位置し、前記第２ヘッドチップが磁気
媒体の退出にする後行側に位置するように前記磁気ヘッ
ドを回転シリンダに装着したことを特徴とする磁気再生
装置。2. A first head chip having a first operating gap formed by abutting a first core and a second core on which a coil is wound and a first operating gap formed at the abutting portion, and a second core having a coil wound thereon. A first core and a second core are abutted, and a second head chip having a second working gap formed at the abutting portion is disposed such that the first cores face each other with a predetermined inter-chip distance. The distance Ix from the first working gap in the first head chip to the end of the first core on the second head chip side is equal to the distance Ix from the second working gap in the second head chip to the first core of the first core. What is claimed is: 1. A magnetic reproducing apparatus comprising: a magnetic head having a distance larger than a distance Iy to a head chip side end, wherein the first head chip is located on a leading side where a magnetic medium enters, and the second head chip is moved out of the magnetic medium. After A magnetic reproducing apparatus, wherein the magnetic head is mounted on a rotary cylinder so as to be positioned on a row side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4164190A JP2804586B2 (en) | 1990-02-22 | 1990-02-22 | Magnetic head and magnetic reproducing apparatus using the magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4164190A JP2804586B2 (en) | 1990-02-22 | 1990-02-22 | Magnetic head and magnetic reproducing apparatus using the magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03245310A JPH03245310A (en) | 1991-10-31 |
| JP2804586B2 true JP2804586B2 (en) | 1998-09-30 |
Family
ID=12613960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4164190A Expired - Fee Related JP2804586B2 (en) | 1990-02-22 | 1990-02-22 | Magnetic head and magnetic reproducing apparatus using the magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2804586B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0628624A (en) * | 1992-06-03 | 1994-02-04 | Matsushita Electric Ind Co Ltd | Magnetic head |
-
1990
- 1990-02-22 JP JP4164190A patent/JP2804586B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03245310A (en) | 1991-10-31 |
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|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |