JPS63213103A - Floppy disk device - Google Patents

Floppy disk device

Info

Publication number
JPS63213103A
JPS63213103A JP4555487A JP4555487A JPS63213103A JP S63213103 A JPS63213103 A JP S63213103A JP 4555487 A JP4555487 A JP 4555487A JP 4555487 A JP4555487 A JP 4555487A JP S63213103 A JPS63213103 A JP S63213103A
Authority
JP
Japan
Prior art keywords
board
head
magnetic head
carriage
circuit board
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
JP4555487A
Other languages
Japanese (ja)
Inventor
Koichi Ishibashi
石橋　幸一
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP4555487A priority Critical patent/JPS63213103A/en
Publication of JPS63213103A publication Critical patent/JPS63213103A/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
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/12—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules
    • G11B33/121—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules the apparatus comprising a single recording/reproducing device
    • 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
    • G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
    • G11B5/016—Recording on, or reproducing or erasing from, magnetic disks using magnetic foils
    • 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

Landscapes

  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

PURPOSE:To shorten a distance between a head amplifier circuit board and a magnetic head and to prevent the influence of extrinsic noise from being given, by screwing the head amplifier circuit board on a carriage on which the magnetic head is fixed. CONSTITUTION:A head amplifier board 5 is arranged in the neighborhood of the magnetic head 3, and is fixed on the carriage 4 via a screw 6, and the board 5 is connected to the magnetic head 3 with a shield wire 7. And a main body control circuit board 8 and the board 5 are constituted separately via a cable 9, and since the board 5 is arranged in the neighborhood of the magnetic head 3 separated far away the board 8, it is very hard to be affected by the extrinsic noise compared with a conventional device. Also, since the board 5 is screwed on the carriage 4 via the screw 6,exchanging work can be easily performed. By screwing the board 5 on the carriage 4 on which the head 3 is fixed in such a way, the distance between the board 5 and the head 3 is reduced, and the influence of the extrinsic noise can be suppressed at a low level.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、コンピュータの外部記憶装置などに使用する
フロッピーディスク装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a floppy disk device used as an external storage device of a computer.

従来の技術 従来のこの種のフロッピーディスク装置は、記録又は再
生の信号を増幅するためのヘッドアンプ回路が、記録又
は再生するための磁気ヘッドから遠く離れた位置に配設
されている本体の制御回路基板の中に、その制御回路と
共に組み込まれ、かかるヘッドアンプ回路と、この回路
より遠く離れた磁気ヘッドとを長尺のケーブルで接続し
て成る構成であった。2. Description of the Related Art A conventional floppy disk device of this type has a main body control system in which a head amplifier circuit for amplifying recording or reproducing signals is located far away from a magnetic head for recording or reproducing. The head amplifier circuit was built into a circuit board together with its control circuit, and the head amplifier circuit was connected to a magnetic head located far away from the circuit using a long cable.

発明が解決しようとする問題点 かかる構成によれば、磁気ヘッドとヘッドアンプ回路と
を接続するためのケーブルが長くなる問題と、外部より
誘導されるノイズも大きいという問題があった。Problems to be Solved by the Invention According to this configuration, there are problems that the cable for connecting the magnetic head and the head amplifier circuit becomes long and that noise induced from the outside is also large.

これを換言するに、磁気ヘッドとヘッドアンプ回路とは
遠く離れているために、両者を接続するためのケーブル
を短かくすることができないと共に、シールド線を使用
して外来ノイズの低減を図る必要があった。In other words, since the magnetic head and head amplifier circuit are far apart, it is not possible to shorten the cable used to connect them, and it is necessary to use shielded wires to reduce external noise. was there.

本発明は、上述したような問題を解決するものであり、
ヘッドアンプ回路と磁気ヘッドとの距離を短か（して、
外来ノイズの影響を受は難くしたフロッピーディスク装
置を提供することを目的とするものである。The present invention solves the above-mentioned problems,
Shorten the distance between the head amplifier circuit and the magnetic head.
The object of the present invention is to provide a floppy disk device that is less susceptible to external noise.

問題点を解決するだめの手段 本発明は、前記目的を達成するために、ヘッドアンプ回
路と本体の制御回路とを別々の基板で構成し、そのヘッ
ドアンプ回路の基板を、磁気ヘッドを固定するためのキ
ャリッジにビスを介して固定したものである。Means for Solving the Problems In order to achieve the above object, the present invention configures the head amplifier circuit and the main body control circuit on separate boards, and fixes the magnetic head to the head amplifier circuit board. It is fixed to the carriage with screws.

作　　　　用 上記構成により、ヘッドアンプ回路基板は磁気ヘッドに
近いキャリッジ上に取り付けられるので、外来ノイズの
影響を低（抑えることができると共に、ビスを使用する
ことで、ヘッドアンプ回路基板の取り外し交換が迅速か
つ簡易にできる。Function: With the above configuration, the head amplifier circuit board is mounted on the carriage near the magnetic head, so the influence of external noise can be suppressed, and by using screws, the head amplifier circuit board can be removed and replaced. It can be done quickly and easily.

実施例 図は、本発明の一実施例であるフロッピーディスク装置
の概略構成を示すブロック図である。Embodiment Figure 1 is a block diagram showing a schematic configuration of a floppy disk device that is an embodiment of the present invention.

図において、１は例えば可撓性等の交換型磁気記録媒体
（以下、フロッピーディスクという）、２はフロッピー
ディスク１に所定の回転数を与えるためのドライブモー
タ、３は記録または再生するための磁気ヘッド、４はそ
の磁気ヘッド３を固定するためのキャリッジ、５は記録
または再生の信号を増幅するためのヘッドアンプ回路の
基板（以下、ヘッドアンプ基板という）であり、このヘ
ッドアンプ基板５は磁タヘッド３の近傍に配置してビス
６を介してキャリッジ４に固定する。しかして、このヘ
ッドアンプ基板５と磁気ヘッド３とをシールド＃！７で
接続する。In the figure, 1 is a flexible magnetic recording medium (hereinafter referred to as a floppy disk), 2 is a drive motor for giving a predetermined rotation speed to the floppy disk 1, and 3 is a magnetic recording or reproducing medium. 4 is a carriage for fixing the magnetic head 3; 5 is a board for a head amplifier circuit (hereinafter referred to as head amplifier board) for amplifying recording or reproduction signals; It is placed near the motor head 3 and fixed to the carriage 4 via screws 6. Therefore, this head amplifier board 5 and magnetic head 3 are shielded #! Connect with 7.

８は本体の制御回路基板で、この制御回路基板８とこの
制御回路基板８から遠く離れた前記ヘッドアンプ基板５
とは、シールド線でない普通のケーブル９で接続する。8 is a control circuit board of the main body, and this control circuit board 8 and the head amplifier board 5 which is far away from this control circuit board 8.
is connected with an ordinary cable 9 that is not a shielded wire.

このように、上記実施例によれば、ヘッドアンプ基板５
と本体の制御回路基板８とを別々に構成して、ヘッドア
ンプ基板５を制御回路基板８より遠く離れた磁気ヘッド
３の近傍に配置している。In this way, according to the above embodiment, the head amplifier board 5
and the control circuit board 8 of the main body are constructed separately, and the head amplifier board 5 is arranged near the magnetic head 3, farther away than the control circuit board 8.

その結果、外来ノイズの影響は従来装置に比べ著しく受
は難くなる。As a result, the influence of external noise becomes significantly less susceptible than in conventional devices.

また、ヘッドアンプ基板５はビス６を介してキャリッジ
４へ螺着しているため、耶り外し交換作業の便が良い。Furthermore, since the head amplifier board 5 is screwed onto the carriage 4 via screws 6, it is convenient to remove the screw and replace it.

発明の効果 本発明は前記実施例より明らかなように、ヘッドアンプ
回路基板を磁気ヘッドを固定するキャリッジ上に螺着す
るようにしたものであるから、ヘッドアンプ回路基板と
磁気ヘッドとの距離が短くなり、外来ノイズの影響を低
（抑えることができろ。Effects of the Invention As is clear from the above embodiments, in the present invention, the head amplifier circuit board is screwed onto the carriage that fixes the magnetic head, so the distance between the head amplifier circuit board and the magnetic head can be reduced. Be able to shorten the length and reduce the influence of external noise.

またヘッドアンプ回路基板はキャリッジに対してビス止
めしているため、取り外し交換が容易にできる。Additionally, the head amplifier circuit board is screwed to the carriage, making it easy to remove and replace.

更にヘッドアンプ回路基板と磁気ヘッドとの距離が従来
装置に比べて著しく短（なり、そこに使用するシールド
線も短かくて済むため、経済的効果大なるものがある。Furthermore, the distance between the head amplifier circuit board and the magnetic head is significantly shorter than that of conventional devices, and the shield wire used there can also be shortened, resulting in great economical effects.

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

図は本発明の一実施例であるフロッピーディスク装置の
概略構成を示すブロック図である。 １・・・交換型磁気記録媒体（フロッピーディスク）、
２・・・ドライブモータ、３・・・磁気ヘッド、４・・
・キャリッジ、５・・・ヘッドアンプ回路基板、６・・
・ビス、７・・・シールド線、８・・・制御回路基板、
９・・・ケーブル。FIG. 1 is a block diagram showing a schematic configuration of a floppy disk device according to an embodiment of the present invention. 1... Replaceable magnetic recording medium (floppy disk),
2... Drive motor, 3... Magnetic head, 4...
・Carriage, 5...Head amplifier circuit board, 6...
・Screw, 7... Shield wire, 8... Control circuit board,
9... Cable.

Claims (1)

【特許請求の範囲】[Claims] 交換型磁気記録媒体を用いて記録又は再生するための磁
気ヘッドと、この磁気ヘッドを固定するためのキャリッ
ジと、記録、又は再生の信号を増幅するためのヘッドア
ンプ回路基板とを備え、前記ヘッドアンプ回路基板をビ
スを介して前記キャリッジに固定したことを特徴とする
フロッピーディスク装置。The head comprises a magnetic head for recording or reproducing using a replaceable magnetic recording medium, a carriage for fixing the magnetic head, and a head amplifier circuit board for amplifying the recording or reproducing signal. A floppy disk device characterized in that an amplifier circuit board is fixed to the carriage via screws.
JP4555487A 1987-02-27 1987-02-27 Floppy disk device Pending JPS63213103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4555487A JPS63213103A (en) 1987-02-27 1987-02-27 Floppy disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4555487A JPS63213103A (en) 1987-02-27 1987-02-27 Floppy disk device

Publications (1)

Publication Number Publication Date
JPS63213103A true JPS63213103A (en) 1988-09-06

Family

ID=12722579

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4555487A Pending JPS63213103A (en) 1987-02-27 1987-02-27 Floppy disk device

Country Status (1)

Country Link
JP (1) JPS63213103A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59168906A (en) * 1983-03-17 1984-09-22 Fujitsu Ltd Magnetic disk device
JPS6031766B2 (en) * 1981-06-24 1985-07-24 三菱マテリアル株式会社 Denitration equipment for uranyl nitrate and/or plutonium nitrate
JPS60185204A (en) * 1984-03-02 1985-09-20 Hitachi Ltd Rotary magnetic head drum device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6031766B2 (en) * 1981-06-24 1985-07-24 三菱マテリアル株式会社 Denitration equipment for uranyl nitrate and/or plutonium nitrate
JPS59168906A (en) * 1983-03-17 1984-09-22 Fujitsu Ltd Magnetic disk device
JPS60185204A (en) * 1984-03-02 1985-09-20 Hitachi Ltd Rotary magnetic head drum device

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