JPS6196507A - Floppy disk device - Google Patents

Floppy disk device

Info

Publication number
JPS6196507A
JPS6196507A JP21916584A JP21916584A JPS6196507A JP S6196507 A JPS6196507 A JP S6196507A JP 21916584 A JP21916584 A JP 21916584A JP 21916584 A JP21916584 A JP 21916584A JP S6196507 A JPS6196507 A JP S6196507A
Authority
JP
Japan
Prior art keywords
head
recording
width
erasing
erase
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
Application number
JP21916584A
Other languages
Japanese (ja)
Inventor
Motoji Okuda
奥田　統士
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NANAKOMU KK
Original Assignee
NANAKOMU KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NANAKOMU KK filed Critical NANAKOMU KK
Priority to JP21916584A priority Critical patent/JPS6196507A/en
Publication of JPS6196507A publication Critical patent/JPS6196507A/en
Pending legal-status Critical Current

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
    • G11B5/265—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

Abstract

PURPOSE:To execute easily working and to realize a low cost a head which is not inferior in respect of its performance by providing in front an erasing head having a track width of one track pitch, and placing a recording and reproducing head whose width is narrower than said width, at a rear side. CONSTITUTION:A magnetic head is constituted of an erasing head A and a recording and reproducing head B, the erasing head A is placed in front with respect to a medium running direction, and its track width is set so as to correspond to about one track pitch. Also, the recording and reproducing head B is set so that its width is narrower than that of the head A, and placed at the rear side. Accordingly, when rewriting a data, it is written by the head B after erasing completely the previous information by the erasing head A, therefore, a residual noise can be eliminated entirely. Also, three cores are not combined as before, and working of a wide width is executed, therefore, working can be executed easily. According, the head which is not inferior in respect of its performance can be formed at a low cost.

Description

【発明の詳細な説明】 産業上の利用分野 本発明はフロッピーディスク装置に関するものであり、
特にフロッピーディスク装置の製造原価構成上、最も比
重の高い磁気ヘッド部分を改良することにより歩留りを
良くシ、安価で、且つ、性能的に遜色のないフロッピー
ディスク装置を提供せんとするものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a floppy disk device.
In particular, by improving the magnetic head portion, which has the highest specific gravity in terms of the manufacturing cost structure of a floppy disk device, the present invention aims to improve the yield, provide a floppy disk device that is inexpensive, and has comparable performance.

従来の技術 従来、フロッピーディスク装置の構成要部である磁気ヘ
ッドには、第２図に示すようなトンネルイレーズヘッド
をはじめとし、その他に７ζルクイレーズヘッドやスト
ラドルイレーズヘッド等が配置されている。2. Description of the Related Art Conventionally, a magnetic head, which is a main component of a floppy disk device, includes a tunnel erase head as shown in FIG. 2, as well as a 7ζ erase head, a straddle erase head, and the like.

以下、フロッピーディスク装置に最も一般的に使用され
ているトンネルイレーズタイプの磁気ヘッドについて第
２図に基づいて説明子る。　、トンネルイレーズタイプ
の磁気ヘッドは消去ヘッドａと記録／再生ヘッドｂとか
ら成り、イレーズヘッドコア４，４とイレーズヘッドコ
ア５，５とはそれぞれイレーズへラドギャップ４４．５
５を形成し、記録／再生へラドコア３，３は記録／再生
ヘッドギャップ３３を形成している。The tunnel erase type magnetic head, which is most commonly used in floppy disk drives, will be explained below with reference to FIG. , the tunnel erase type magnetic head consists of an erase head a and a recording/reproducing head b, and the erase head cores 4, 4 and the erase head cores 5, 5 each have a rad gap of 44.5 to erase.
The recording/reproducing head gap 33 is formed between the recording/reproducing head gap 33 and the recording/reproducing head gap 33.

イレーズヘッドギャップ４４，５５の幅と記録／再生ヘ
ッドギャップ８８の幅をプラスしだ幅Ｗはメディアの１
トラックピッチ相当のトラック幅にほぼ等しい。The width W of the media is the sum of the width of the erase head gaps 44 and 55 and the width of the recording/reproduction head gap 88.
It is approximately equal to the track width equivalent to the track pitch.

ディスクの互換性を保つ為に、イレーズヘッドギャップ
３３と記録／再生ヘッドギャップとの間隔ｇは、他の磁
気ヘッドと統一されている。In order to maintain disk compatibility, the distance g between the erase head gap 33 and the recording/reproducing head gap is the same as that of other magnetic heads.

発明が解決しようとする問題点 フロッピーディスク装置に最も一般的に使用されている
磁気ヘッドは第２図に示すようなトンネルイレーズタイ
プのものであり、記録／再生へラドコア３とイレーズへ
ラドコア４，５とヲ別々に作ってトラック幅方向に多層
に組合せるものであるが、三つのコアを作る為に製造コ
ストが高く、特に高密度化にともなう狭トラックのヘッ
ドコアを作ることは歩留シが悪く、コストアップとなる
ものであった。Problems to be Solved by the Invention The magnetic heads most commonly used in floppy disk drives are of the tunnel erase type as shown in FIG. 5 and 5 are made separately and combined in multiple layers in the track width direction, but the manufacturing cost is high because three cores are made, and in particular, manufacturing a narrow track head core with higher density has a problem with yield. This is bad and increases costs.

又、バルクイレーズヘッドは高密度化に対応したヘッド
の製造方法であるが、切除部分を高精度に加工すること
が要求され、精密な工作機械が必要になるものであった
。Further, although the bulk erase head is a method of manufacturing a head that is compatible with higher density, it is required to process the cut portion with high precision, and a precision machine tool is required.

又、ストラドルイレーズヘッドに於いても高密度化によ
り、イレーズポールの各ディメン、ンヨ／を高精度に加
工しなければならず、いずれもコスト高になるものであ
った。Furthermore, due to the high density of the straddle erase head, each dimension and width of the erase pole must be machined with high precision, both of which increase costs.

問題点を解決するための手段 本発明は上記せるような従来の欠点を解消する手段とし
て、フロッピーディスク装置のメディアの走行に対し、
先行して配置されるおおよそ１トラツクピンチ相当のト
ラック幅を有する消去ヘッドと、この消去ヘッドよりも
狭いトラック幅を有し、該消去ヘッドに対己メディア走
行方向の後方側に配置される記録／再生ヘッドとを主た
る構成要素としたものである。Means for Solving the Problems The present invention solves the above-mentioned conventional drawbacks by providing a method for moving media in a floppy disk drive.
An erasing head disposed in advance and having a track width equivalent to approximately one track pinch, and a recording/recording head having a track width narrower than this erasing head and disposed on the rear side of the erasing head in the traveling direction of the medium. The main component is a playback head.

作用 上記せるように、記録／再生ヘッドの幅が消去ヘッドの
幅より狭く構成されているので、データを書き換える際
、消去ヘッドで完全に前の情報を消去してから書き込む
ことができ、従って、前の情報の残存ノイズを皆無とす
ることができる。As mentioned above, since the width of the recording/reproducing head is narrower than the width of the erasing head, when rewriting data, the erasing head can completely erase the previous information before writing. Any residual noise from previous information can be eliminated.

実施例 以下、図面に示す実施例に基づき、本発明の詳細な説明
する。EXAMPLES Hereinafter, the present invention will be explained in detail based on examples shown in the drawings.

図面に於いて、第１図は本発明フロッピーディスク装置
に配置する磁気ヘッドの部分斜視図、第２図は従来のト
ンネルイレーズヘッドの部分斜視図である。In the drawings, FIG. 1 is a partial perspective view of a magnetic head disposed in a floppy disk device of the present invention, and FIG. 2 is a partial perspective view of a conventional tunnel erase head.

本発明フロッピーディスク装置に配置せる磁気ヘッドは
消去へノドＡと記録／再生ヘッドＢとかう成す、イレー
ズヘッドコア２．２はイレーズヘッドギャップ２２を形
成し、記録／再生へラドコア１，１は記録／再生ヘッド
ギャップ１１を形成してい名。記録／再生ヘッドギャッ
プ１１の幅ｔはイレーズヘッドギャップの幅Ｗより狭く
形成されている。The magnetic heads disposed in the floppy disk device of the present invention consist of an erasing node A and a recording/reproducing head B. The erase head core 2.2 forms an erase head gap 22, and the recording/reproducing cores 1, 1 form a recording/reproducing head gap 22. /The playback head gap 11 is formed. The width t of the recording/reproducing head gap 11 is narrower than the width W of the erase head gap.

イレーズへソドギャンプ２２と記録／再生ヘッドギャッ
プ１１との間隔Ｇは、トンネルイレーズタづブの場合の
イレーズヘッドギャップと記録／再生ヘンドギャソプと
の間隔ｇと等しく形成されている。The distance G between the erase head gap 22 and the recording/reproducing head gap 11 is formed to be equal to the distance g between the erase head gap and the recording/reproducing head gap in the case of a tunnel erase tab.

消去ヘッドＡはメディア走行方向に対し先行して配置さ
れる。記録／再生ヘッドＢは消去ヘッドＡに対しメディ
ア走行方向の後方側に配置される。The erasing head A is arranged in advance in the media running direction. The recording/reproducing head B is arranged on the rear side of the erasing head A in the media running direction.

消去ヘッドＡのヘッドコア２，２は単層に形成され、そ
のトラック幅は略１トラックピンチに相当する幅広にな
っている。また、記録／再生ヘッドＢのヘッドコア１．
１はヘッドコア２．２と同様に、単層をなすと共に、そ
のトラック幅は消去ヘッドＡのトラック幅よりも幅狭に
形成されている。しだがって、従来のヘッド構造に比べ
て、消去へ？ド、記録／再生ヘッド共に幅広かつ単層構
造であるために、容易に加工精度を出すことができ、加
工が簡単であると共に、特別に精密な加工を必要としな
いで済む。The head cores 2, 2 of the erasing head A are formed in a single layer, and the track width thereof is wide enough to approximately correspond to one track pinch. Also, the head core 1 of the recording/playback head B.
Like the head core 2.2, the head core 1 is a single layer, and its track width is narrower than that of the erase head A. Therefore, compared to the traditional head structure, to erasure? Since both the head and the recording/reproducing head are wide and have a single layer structure, processing accuracy can be easily achieved, processing is simple, and there is no need for particularly precise processing.

なお、実施例において、消去ヘッドＡと記録／再生ヘッ
ドＢとの間には、゛電気的、磁気的に遮断する適宜のス
ペーサが介装されることはいうまでもない。In the embodiment, it goes without saying that an appropriate spacer is interposed between the erasing head A and the recording/reproducing head B to provide electrical and magnetic isolation.

発明の効果 本発明は以上説明したように構成されているので、従来
のトンネルイレーズヘッドのように肉薄のイレーズへラ
ドコアの加工の必要がなく、幅広のため加工が容易で歩
留りも良好であり、同等の使用方法に於いて性能的に遜
色のないフロンピーディスク装置を提供することができ
た。Effects of the Invention Since the present invention is constructed as described above, there is no need to process the rad core into a thin eraser as in the conventional tunnel erase head, and the wide width makes it easy to process and has a good yield. It was possible to provide a floppy disk device with comparable performance in the same usage method.

又、本発明フロンピーディスク装置に配置せる磁気へノ
ドば、従来のバルクイレーズヘッドやストラドルイレー
ズヘッドのように特別に精密な加工を必要としないので
、安価なフロンピーディスク装置を提供することが可能
となった。Further, since the magnetic nozzle disposed in the floppy disk device of the present invention does not require special precision machining unlike conventional bulk erase heads or straddle erase heads, it is possible to provide an inexpensive floppy disk device. It has become possible.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明の実施例を示すもので、第１図は本発明フ
ロッピーディスク装置に配置する磁気へノドの部分斜視
図、第２図は従来のトンネルイレーズヘッドの部分斜視
図である。 １・・・・・・・・・・記録／再生ヘッドコア。 １１・・・・・・・・記録／再生ヘッドギャップ。 ２・・・・・・・・・・・イレーズヘッドコア。 ２２・・・・・・・・・イレーズヘッドギャップ。 ８・・・・・・・・・・・記録／再生へラドコア。 ３３・・・・・・・・記録再生ヘッドギャップ。 ４・・・・・・・・・・・・イレーズヘッドコア。 ４４・・・・・・・・・イレーズヘッドギャップ。 ５・・・・・・・・・・・イレーズヘッドコア。 ５５・・・・・・・・・イレーズへラドギャップ。 Ａ・・・・・・・・・・消去ヘッド。 Ｂ・・・・・・・・・・・記録／再生へノド。 ａ・・・・・・・・・・・ど尚古ヘッド。 ｂ・・・・・・・・・・・・記録／再生ヘッド。 手続補正書（方式〕 昭和５９年１１月１４日 昭和５９年特許　願第２１９１６５号 ２、発明の名称　フロッピーディスク装置３、　補正を
する者 事件との関係　特許出願人 住　所　　東取都新宿区本塩町２３番地氏　名（名称）
株式会社ナナコム ７、補正の対象 （２）明細書の第２頁下から１行目の図番「３３」’ｋ
ｒ４４，５５Ｊ　　ｌｃｌ正する。 以上The drawings show an embodiment of the present invention; FIG. 1 is a partial perspective view of a magnetic head disposed in a floppy disk device of the present invention, and FIG. 2 is a partial perspective view of a conventional tunnel erase head. 1... Recording/playback head core. 11... Record/playback head gap. 2...Erase head core. 22...Erase head gap. 8......Radcore to record/playback. 33... Recording/playback head gap. 4・・・・・・・・・Erase head core. 44...Erase head gap. 5・・・・・・・・・Erase head core. 55... Rad gap to erase. A: Erasing head. B・・・・・・・・・・・・Proceed to recording/playback. a......Do Shoko head. b・・・・・・・・・・・・Record/playback head. Procedural amendment (method) November 14, 1980 Patent Application No. 219165 2, Title of invention: Floppy disk device 3, Relationship with the case of the person making the amendment Patent applicant address: Shinjuku-ku, Tokyo, Japan 23 Shiomachi Name (Name)
Nanacom Co., Ltd. 7, subject of amendment (2) Figure number "33" in the first line from the bottom of the second page of the specification 'k
r44,55J lcl correct. that's all

Claims (1)

【特許請求の範囲】[Claims] （１）メディア走行方向に対し先行して配置されるおお
よそ１トラックピッチ相当のトラック幅を有する消去ヘ
ッドと、この消去ヘッドよりも狭いトラック幅を有し、
該消去ヘッドに対し前記メディア走行方向の後方側に配
置される記録／再生ヘッドとを備えることを特徴とする
フロッピーディスク装置。(1) An erasing head having a track width equivalent to approximately one track pitch and disposed in advance in the media running direction, and having a track width narrower than this erasing head,
A floppy disk device comprising: a recording/reproducing head disposed on the rear side of the erasing head in the media running direction.
JP21916584A 1984-10-17 1984-10-17 Floppy disk device Pending JPS6196507A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21916584A JPS6196507A (en) 1984-10-17 1984-10-17 Floppy disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21916584A JPS6196507A (en) 1984-10-17 1984-10-17 Floppy disk device

Publications (1)

Publication Number Publication Date
JPS6196507A true JPS6196507A (en) 1986-05-15

Family

ID=16731218

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21916584A Pending JPS6196507A (en) 1984-10-17 1984-10-17 Floppy disk device

Country Status (1)

Country Link
JP (1) JPS6196507A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5018770A (en) * 1973-06-25 1975-02-27
JPS50101016A (en) * 1974-01-07 1975-08-11

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5018770A (en) * 1973-06-25 1975-02-27
JPS50101016A (en) * 1974-01-07 1975-08-11

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