JPH022225B2 - - Google Patents
Info
- Publication number
- JPH022225B2 JPH022225B2 JP57207803A JP20780382A JPH022225B2 JP H022225 B2 JPH022225 B2 JP H022225B2 JP 57207803 A JP57207803 A JP 57207803A JP 20780382 A JP20780382 A JP 20780382A JP H022225 B2 JPH022225 B2 JP H022225B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- head
- recording
- recording medium
- medium
- 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.)
- Expired - Lifetime
Links
- 238000003825 pressing Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 241001417935 Platycephalidae Species 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/32—Maintaining desired spacing between record carrier and head, e.g. by fluid-dynamic spacing
-
- 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
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
Landscapes
- Supporting Of Heads In Record-Carrier Devices (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明はフロツピーデイスクのような可撓性回
転媒体の上下両側から挟み込んで記録再生を行な
う磁気ヘツド装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a magnetic head device which performs recording and reproduction by sandwiching a flexible rotating medium such as a floppy disk from above and below.
従来例の構成とその問題点
従来、デジタルデータやプログラムの記録用に
は、アクセスが容易にフアイルごとに一枚に分割
記録されたフロツピーデイスクが装置の低廉価と
も相挨つて広く利用され、その媒体当りの記憶容
量を増やす目的から媒体の両面とも記録再生が可
能な、いわゆる両面フロツピーデイスクが発展し
ている。可撓性のある媒体として、高分子フイル
ムをベースとし、その上に磁性粉末を各種バイン
ダー等で混合・塗布した磁気シートが一般的であ
るが、近年、記録密度をもつと高める目的から、
高分子ベース上に、金属磁性材料を蒸着、イオン
プレーテイング、スパツタリングなどの手段によ
つて直接薄膜金属層を設け、記録媒体としたもの
が提案されているが、後者の場合における従来の
ヘツド形状は、第１図に示すように媒体１の両面
を等しく記録再生領域として接触走行する関係で
両方のヘツド２，２′とも媒体１に接する面を平
面形状に研削し、媒体１の回転走行時のうねりや
上下動の影響を吸収するために板状ジンバル３等
に一方の平面ヘツド２を固定し、ジンバル３を通
じて支持機構部材４に連結する支持方法を採つて
いる。この場合記録媒体１がしなやかであり、又
平面性の良い例えば塗布型媒体などではヘツドの
ギラツプ部の媒体面の接触が良好であり大きな問
題を生じない。しかしながら、金属合金薄膜シー
トのような媒体はその可撓性は塗布媒体のそれと
は微妙に異なり、マクロな曲げ硬さなどは同じで
も微少領域の振動の仕方などは異つており、又、
表面の平坦性も完全一様に作成するのが困難なこ
とから、第２図に示すように媒体１′に細かな凹
凸６が生じ、平面型ヘツド２，２′でこれら媒体
１′表面を接触走行させても、完全に密接した安
定走行は望めず、結果的に再生信号の出力変動
（モジユレーシヨン又はエンビロープ）率が大き
くなつて信号の誤読率が大きくなり、記録装置と
して使用できなくなる。図で３はジンバル、４は
支持機構部材である。媒体１′の凹凸やうねりが
あつても平面型ヘツド２，２先端を媒体１′表面
に密着させるには、挟み込んだ２個の平面ヘツド
２，２′の荷重力を増していけば良いが、実際問
題として走行磨擦が増大し、媒体の円滑回転が保
てなくなつたり、ヘツドや媒体面の耐久性が低下
してまうので、実用性にとぼしくなつてくる。Conventional configurations and their problems Conventionally, floppy disks have been widely used for recording digital data and programs because they are easy to access and each file is divided and recorded on a single disk. In order to increase the storage capacity per medium, so-called double-sided floppy disks, in which recording and reproduction can be performed on both sides of the medium, have been developed. As a flexible medium, magnetic sheets are generally made of a polymer film as a base and magnetic powder mixed and coated with various binders, etc., but in recent years, with the aim of increasing recording density,
It has been proposed to form a recording medium by directly forming a thin film metal layer of a metal magnetic material on a polymer base by means such as vapor deposition, ion plating, or sputtering, but in the latter case, the conventional head shape As shown in FIG. 1, both heads 2 and 2' are ground in contact with the medium 1 so that both sides of the medium 1 are equally used as recording and reproducing areas and run in contact with each other, and when the medium 1 rotates and runs, In order to absorb the effects of undulations and vertical movements, one of the planar heads 2 is fixed to a plate-shaped gimbal 3 or the like, and a support method is adopted in which it is connected to a support mechanism member 4 through the gimbal 3. In this case, if the recording medium 1 is flexible and has good flatness, such as a coating type medium, the contact between the medium surface at the lug portion of the head is good, and no major problem occurs. However, the flexibility of a medium such as a metal alloy thin film sheet is slightly different from that of a coating medium, and even though the macroscopic bending hardness is the same, the way it vibrates in a minute area is different.
Since it is difficult to create a completely uniform surface, fine irregularities 6 occur on the medium 1' as shown in FIG. Even when running in contact, it is not possible to achieve a completely close and stable running, and as a result, the output fluctuation (modulation or envelope) rate of the reproduced signal becomes large, resulting in a high rate of signal misreading, making it impossible to use it as a recording device. In the figure, 3 is a gimbal, and 4 is a support mechanism member. In order to keep the tips of the flat heads 2, 2 in close contact with the surface of the medium 1' even if the medium 1' has unevenness or undulations, it is better to increase the loading force of the two flat heads 2, 2' sandwiched together. However, as a practical problem, running friction increases, the smooth rotation of the medium cannot be maintained, and the durability of the head and the medium surface decreases, making it impractical.
第３図に従来ヘツドについてのモジユレーシヨ
ン及び耐久性とヘツド荷重量の関係を示す。 FIG. 3 shows the relationship between the modulation and durability of a conventional head and the amount of head load.
モジユレーシヨン値は小さい程再生出力が安定
であることを示すが、図からわかるように従来ヘ
ツドでは40ｇのヘツド荷重でようやく10％に近づ
く。しかし耐久性は８×103パス程度であつて、
実用上の要求値106パス以上には程遠い。荷重量
を減少させるに従がい、パス数も上昇し耐久性は
良くなるが、モジユレーシヨンは、ますます悪化
してしまう。 The smaller the modulation value, the more stable the reproduction output is, but as can be seen from the figure, in the conventional head, it approaches 10% only at a head load of 40g. However, the durability is about 8 × 10 3 passes,
It is far from the practical requirement of 10 6 passes or more. As the load decreases, the number of passes increases and durability improves, but the modulation worsens.
このように従来のヘツドではモジユレーシヨン
と耐久性については荷重量に関して相反する傾向
を示す欠点があつた。 As described above, conventional heads have had the disadvantage that modulation and durability tend to contradict each other with respect to load amount.
発明の目的
本発明は上記従来のヘツド装置の欠点を解消す
るもので、モジユレーシヨンの改善、耐久性の向
上をはかり、記録媒体に多少の凹凸やうねりがあ
つても充分安定な出力を得ることができる磁気ヘ
ツド装置を提供することを目的とするものであ
る。Purpose of the Invention The present invention solves the above-mentioned drawbacks of the conventional head device, improves modulation and durability, and makes it possible to obtain sufficiently stable output even if the recording medium has some unevenness or waviness. The object of the present invention is to provide a magnetic head device that can be used.
発明の構成
本発明は、磁気記録媒体を表裏両面から挟む挟
持手段と、前記挟持手段を固定支持する支持体
と、前記支持体を介し挟持手段を磁気記録媒体に
押圧させる加圧手段とを具備し、磁気記録媒体を
表裏両面から挟む挟持手段の磁気記録媒体に対向
する面を凸面状とし、挟持手段の一方を記録再生
ヘツド、他方を非磁性ブロツクとして、非磁性ブ
ロツクの曲率半径を記録再生ヘツドの磁気記録媒
体に対向する面の曲率半径より小さくすることに
より、モジユレーシヨンの向上と耐久性の向上を
図つたものである。Structure of the Invention The present invention includes a clamping means for sandwiching a magnetic recording medium from both sides, a support for fixedly supporting the clamping means, and a pressing means for pressing the clamping means against the magnetic recording medium through the support. The surface of the clamping means that faces the magnetic recording medium, which sandwiches the magnetic recording medium from both the front and back sides, is made convex, one of the clamping means is used as a recording/reproducing head, and the other is a non-magnetic block, and the radius of curvature of the non-magnetic block is used for recording and reproducing. By making the radius of curvature smaller than the radius of curvature of the surface of the head facing the magnetic recording medium, the modulation and durability are improved.
実施例の説明
本発明の一実施例としての磁気ヘツド装置の構
成図を第４図に示し、実際走行時の媒体との相対
的位置関係も同図中に示す。表面に凹凸部６の存
在する磁気記録媒体１′はその中心部を回転チヤ
ツク（コレツトと云う）７によつて挟まれ、モー
タ８によつて駆動されて回転する。磁気記録媒体
１′の上面には記録再生ヘツド１２、下面には非
磁性ブロツク１２′が磁気記録媒体１′に接触して
これを挟んだ型で設けられ、記録再生ヘツド１２
及び非磁性ブロツク１２′の先端形状は球面にな
つて媒体面に接している。そして記録再生ヘツド
１２，非磁性ブロツク１２′はそれぞれ支持機構
部材４に、ジンバルや防振材を介しないで直接固
定され、上下の支持機構部材４はその端部が可動
とじ合わせ部９で結合し、上下の支持機構部材４
の間を連結するスプリング５で引張り力が印加さ
れ、磁気記録媒体１′面が記録再生ヘツド１２及
び非磁性ブロツク１２′の表面に接触して走行す
る際の荷重力を生じている。DESCRIPTION OF EMBODIMENTS A block diagram of a magnetic head device as an embodiment of the present invention is shown in FIG. 4, and the relative positional relationship with the medium during actual running is also shown in the figure. A magnetic recording medium 1' having an uneven portion 6 on its surface is sandwiched at its center by a rotating chuck (referred to as a collet) 7, and is driven by a motor 8 to rotate. A recording/reproducing head 12 is provided on the upper surface of the magnetic recording medium 1', and a non-magnetic block 12' is provided on the lower surface of the magnetic recording medium 1' in contact with and sandwiching it therebetween.
The tip of the non-magnetic block 12' is spherical and in contact with the medium surface. The recording/reproducing head 12 and the non-magnetic block 12' are each directly fixed to the support mechanism member 4 without intervening a gimbal or vibration isolator, and the upper and lower support mechanism members 4 are connected at their ends by a movable binding part 9. and upper and lower support mechanism members 4
A tensile force is applied by a spring 5 connecting between the magnetic recording medium 1' and a loading force when the surface of the magnetic recording medium 1' travels in contact with the surfaces of the recording/reproducing head 12 and the non-magnetic block 12'.
本実施例の場合、記録再生ヘツド１２、非磁性
ブロツク１２′ともに磁気記録媒体１′に対向する
面は凸面状又は球面状としても良いが、この場
合、記録再生ヘツド１２及び非磁性ブロツク１
２′の先端面の曲率半径Ｒが、録画特性のモジユ
レーシヨンと出力、及び耐久性に大きな関連を持
つ。 In the case of this embodiment, the surfaces of both the recording/reproducing head 12 and the nonmagnetic block 12' facing the magnetic recording medium 1' may be convex or spherical.
The radius of curvature R of the tip surface 2' has a great relationship with the modulation of recording characteristics, output, and durability.
今ヘツド先端面の曲率畔径Ｒが、５mm、10mm、
30mm、60mm、10mm、240mmの記録再生ヘツド１２
を作成し調べたところ、100mm未満の曲線を持つ
ヘツドは、モジユレーシヨンと出力特性は満足す
るが、耐久性について要求点を満足しなかつた。
これらの結果から、記録再生ヘツド１２の曲率半
径は100mm以上のものが良くく、非磁性ブロツク
１２′の曲率半径はヘツドのそれよりも小さいも
のを選ぶのが好ましいことがわかつた。最も良い
結果が得られた磁気ヘツド装置の構成は録再を行
う記録再生ヘツド１２の曲率再生ヘツド１２の曲
率半径Ｒが240mm、非磁性ブロツク１２′の曲率半
径が60mmの組合わせで、両方とも支持機構部材４
に固定した場合であつた。 The radius R of the curvature of the tip of the head is now 5 mm, 10 mm,
30mm, 60mm, 10mm, 240mm recording/playback head 12
When we created and investigated the head, we found that a head with a curve less than 100mm satisfied the modulation and output characteristics, but did not meet the requirements for durability.
From these results, it has been found that the radius of curvature of the recording/reproducing head 12 is preferably 100 mm or more, and the radius of curvature of the nonmagnetic block 12' is preferably selected to be smaller than that of the head. The configuration of the magnetic head device that yielded the best results was a combination in which the curvature radius R of the recording and reproducing head 12 for recording and reproducing was 240 mm, and the radius of curvature R of the nonmagnetic block 12' was 60 mm. Support mechanism member 4
This was the case when it was fixed at .
このように本実施例の場合、記録再生ヘツド１
２及び非磁性ブロツク１２′の先端形状は球状に
し、記録再生ヘツド１２の先端曲率半径を100mm
以上とし、磁気記録媒体１′を挟んで記録再生ヘ
ツド１２の反対側に設けられる非磁性ブロツク１
２′の先端曲率半径は前記記録再生ヘツド１２の
それよりも小さくし、前記記録再生ヘツド１２、
非磁性ブロツク１２′ともに支持機構部材４に直
接固定することにより、荷重量を軽減しても記録
再生信号の出力変動を小さくすることができるよ
うになり、さらに媒体ヘツドの損傷を与えること
が非常に少なくなり、耐久性を100万パス以上に
することができる。 In this embodiment, the recording/reproducing head 1
2 and the nonmagnetic block 12' are spherical, and the radius of curvature of the tip of the recording/reproducing head 12 is 100 mm.
With the above, the non-magnetic block 1 provided on the opposite side of the recording/reproducing head 12 with the magnetic recording medium 1' in between.
The radius of curvature of the tip of the recording/reproducing head 2' is smaller than that of the recording/reproducing head 12.
By directly fixing both the non-magnetic block 12' to the support mechanism member 4, it is possible to reduce the output fluctuation of the recording/reproduction signal even if the load is reduced, and furthermore, damage to the medium head can be minimized. The durability can be increased to more than 1 million passes.
この場合の非磁性ブロツク１２′の材質として
は、磁気的影響を無くすため非磁性である必要が
あるが、他は良好な表面平坦性の得られる耐摩耗
性の高い材料であれば良く、例えばTiCとAl2O3
の混合焼結体等が望ましい。 In this case, the material of the non-magnetic block 12' must be non-magnetic in order to eliminate magnetic influence, but other materials may be any material with high wear resistance that provides good surface flatness, such as TiC and Al2O3
A mixed sintered body etc. is desirable.
このように、本構成になる磁気ヘツド装置を用
いると、ヘツド面が媒体面に接触する面積が小さ
く、点に近くなり、荷重力もその点に集中するた
め、磁気記録ヘツド１２の球面先端部は常に媒体
面と接触走行することになり、接触状態が安定化
する結果、記録再生時の信号出力値、モジユレー
シヨンが著しく良くなる。この結果の原因は、第
２図にある従来の平面型ヘツドでは媒体の凹凸６
がある場合にヘツド面でブリツジを構成してしま
い、重要なヘツドギヤツプと媒体表面間に空隙を
生じることになり、ヘツド出力を低下させている
ことにある。本実施例のヘツドでは非磁性ブロツ
ク１２′と記録再生ヘツド１２で磁気記録媒体
１′を加圧挟持し、かつ非磁性ブロツク１２′の曲
率半径を記録再生ヘツド１２の曲率半径より小さ
くしているため、このブリツジを生ずる機会は減
り、同時に支持機構部材４に記録再生ヘツド１２
及び非磁性ブロツク１２′が直接固定されている
ため、媒体面の凹凸によつてヘツド面が微動する
ことなく、スプリング５から加わる荷重力で磁気
記録媒体１′の凹凸６を抑え込むことになる。本
実施例を使用する際の効果として、モジユレーシ
ヨンの改善と同時に、耐久性の向上が挙げられ
る。 As described above, when a magnetic head device having this configuration is used, the area where the head surface contacts the medium surface is small and close to a point, and the load force is concentrated at that point, so that the spherical tip of the magnetic recording head 12 is Since it always travels in contact with the medium surface, the contact state is stabilized, and as a result, the signal output value and modulation during recording and reproduction are significantly improved. The reason for this result is that in the conventional flat head shown in Fig. 2, the unevenness of the medium
In some cases, a bridge is formed at the head surface, creating a gap between the important head gap and the media surface, reducing head output. In the head of this embodiment, the magnetic recording medium 1' is held between the non-magnetic block 12' and the recording/reproducing head 12 under pressure, and the radius of curvature of the non-magnetic block 12' is made smaller than the radius of curvature of the recording/reproducing head 12. Therefore, the chances of this bridging occurring are reduced, and at the same time, the recording/reproducing head 12 is not connected to the support mechanism member 4.
Since the non-magnetic block 12' is directly fixed, the head surface does not move slightly due to the unevenness of the medium surface, and the unevenness 6 of the magnetic recording medium 1' is suppressed by the load force applied from the spring 5. The effects of using this embodiment include improved modulation and improved durability.
第５図は、本実施例の磁気ヘツド装置を用いた
場合の耐久性及びモジユレーシヨンとヘツド荷重
量の関係を示したものである。 FIG. 5 shows the relationship between durability, modulation, and head load when the magnetic head device of this embodiment is used.
第３図に示した従来例に比べて、モジユレーシ
ヨンの特性が大幅に向上していることがわかる。
すなわち本実施例の場合、ヘツド荷重量を40ｇか
ら10ｇまで軽減してもモジユレーシヨンは悪化せ
ずほぼ10％を維持する。一方荷重量10ｇにおける
耐久性は実用上の要求値である106パスを達成し
ているから、本実施例は、モジユレーシヨン、耐
久性の両特性とを優れた実用性の高いヘツドとい
える。 It can be seen that the modulation characteristics are significantly improved compared to the conventional example shown in FIG.
That is, in the case of this embodiment, even if the head load is reduced from 40 g to 10 g, the modulation does not deteriorate and remains at approximately 10%. On the other hand, since the durability at a load of 10 g has achieved the practically required value of 10 6 passes, this example can be said to be a highly practical head with excellent properties in both modulation and durability.
このように本実施例の場合、磁気記録媒体を挟
持する記録再生ヘツド及び非磁性ブロツクの、磁
気記録媒体に対向する面を凸面状にし、非磁性ブ
ロツクの曲率半径を記録再生ヘツドのそれよりも
小さくすることにより、モジユレーシヨンの改善
及び耐久性の向上が図れ、磁気記録媒体表面の多
少の凹凸やうねりに関係なく安定した出力が得ら
れる。 As described above, in the case of this embodiment, the surfaces of the recording/reproducing head and the non-magnetic block that sandwich the magnetic recording medium, which face the magnetic recording medium, are made convex, and the radius of curvature of the non-magnetic block is made larger than that of the recording/reproducing head. By making it smaller, modulation and durability can be improved, and stable output can be obtained regardless of some unevenness or waviness on the surface of the magnetic recording medium.
発明の効果
以上のように本発明は磁気記録媒体を表裏両面
から挟む挟持手段を支持体に固定し、前記支持体
を介して挟持手段を磁気記録媒体に押圧させるよ
うにし、前記挟持手段の磁気記録媒体に対向する
面が凸面状を有し、挟持手段の一方を記録再生ヘ
ツド、他方を非磁性ブロツクとして、非磁性ブロ
ツクの曲率半径を記録再生ヘツドの磁気記録媒体
に対向する面の曲率半径より小さくしたもので、
モジユレーシヨンの改善、耐久性の向上を図るこ
とができ、多少の凹凸やうねりのある記録媒体に
おいても充分安定した出力を得ることができる利
点を有する。Effects of the Invention As described above, the present invention fixes the clamping means that clamps the magnetic recording medium from both the front and back surfaces to a support, and presses the clamping means against the magnetic recording medium through the support, and the clamping means The surface facing the recording medium has a convex shape, and one side of the holding means is a recording/reproducing head and the other is a non-magnetic block, and the radius of curvature of the non-magnetic block is the radius of curvature of the surface of the recording/reproducing head facing the magnetic recording medium. It is smaller,
It has the advantage that modulation can be improved and durability can be improved, and a sufficiently stable output can be obtained even on a recording medium with some unevenness or waviness.
第１図は従来の磁気ヘツド装置の側面図、第２
図は第１図の磁気ヘツド装置の部分拡大側面図、
第３図は従来の磁気ヘツド装置の耐久性及びモジ
ユレーシヨンとヘツド荷重量との関係を示す図、
第４図は本発明の一実施例における磁気ヘツド装
置の構成を示す側面図、第５図は本発明の磁気ヘ
ツド装置の耐久性及びモジユレーシヨンとヘツド
荷重量との関係を示す図である。
１，１′……磁気記録媒体、２，２′……記録再
生平面ヘツド、３……ジンバル、４……支持機構
部材、５……荷重印加用スプリング、６……媒体
面上の凹凸部、７……回転用チヤツク（コレツ
ト）、８……モータ、９……支持機構部材の可動
接合部、１２……記録再生ヘツド、１２′……非
磁性ブロツク。
Figure 1 is a side view of a conventional magnetic head device, Figure 2 is a side view of a conventional magnetic head device;
The figure is a partially enlarged side view of the magnetic head device in Figure 1;
FIG. 3 is a diagram showing the durability of a conventional magnetic head device and the relationship between modulation and head load.
FIG. 4 is a side view showing the structure of a magnetic head device according to an embodiment of the present invention, and FIG. 5 is a diagram showing the relationship between durability, modulation, and head load of the magnetic head device of the present invention. 1, 1'... Magnetic recording medium, 2, 2'... Recording/reproducing flat head, 3... Gimbal, 4... Support mechanism member, 5... Spring for applying load, 6... Irregularities on the medium surface. , 7... Rotating chuck (collect), 8... Motor, 9... Movable joint of support mechanism member, 12... Recording/reproducing head, 12'... Non-magnetic block.
Claims (1)
と、前記挟持手段を固定支持する支持体と、前記
支持体を介し挟持手段を磁気記録媒体に押圧させ
る加圧手段とを具備し、前記挟持手段の磁気記録
媒体に対向する面が凸面状であり、挟持手段の一
方が記録再生ヘツド、他方が非磁性ブロツクであ
り、前記非磁性ブロツクの曲率半径を、記録再生
ヘツドの磁気記録媒体に対向する面の曲率半径よ
り小さくしたことを特徴とする磁気ヘツド装置。 ２ 記録再生ヘツドの磁気記録媒体に対向する面
の曲率半径を100mm以上にしたことを特徴とする
特許請求の範囲第１項記載の磁気ヘツド装置。[Scope of Claims] 1. A device comprising a holding means for holding a magnetic recording medium from both sides, a support for fixedly supporting the holding means, and a pressing means for pressing the holding means against the magnetic recording medium through the support. The surface of the clamping means facing the magnetic recording medium is convex, one of the clamping means is a recording/reproducing head, and the other is a non-magnetic block, and the radius of curvature of the non-magnetic block is set to the magnetic field of the recording/reproducing head. A magnetic head device characterized in that the radius of curvature of the surface facing the recording medium is smaller than that of the surface facing the recording medium. 2. The magnetic head device according to claim 1, wherein the surface of the recording/reproducing head facing the magnetic recording medium has a radius of curvature of 100 mm or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20780382A JPS5998346A (en) | 1982-11-26 | 1982-11-26 | Magnetic head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20780382A JPS5998346A (en) | 1982-11-26 | 1982-11-26 | Magnetic head device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5998346A JPS5998346A (en) | 1984-06-06 |
| JPH022225B2 true JPH022225B2 (en) | 1990-01-17 |
Family
ID=16545751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20780382A Granted JPS5998346A (en) | 1982-11-26 | 1982-11-26 | Magnetic head device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5998346A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0495264A (en) * | 1990-08-10 | 1992-03-27 | Teac Corp | Head carriage device |
| JPH04283469A (en) * | 1991-03-12 | 1992-10-08 | Nec Corp | Magnetic head assembly |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5273709A (en) * | 1975-12-17 | 1977-06-21 | Hitachi Ltd | Magnetic disc device |
-
1982
- 1982-11-26 JP JP20780382A patent/JPS5998346A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5273709A (en) * | 1975-12-17 | 1977-06-21 | Hitachi Ltd | Magnetic disc device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5998346A (en) | 1984-06-06 |
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