JPS59168906A - Magnetic disk device - Google Patents

Magnetic disk device

Info

Publication number
JPS59168906A
JPS59168906A JP4478783A JP4478783A JPS59168906A JP S59168906 A JPS59168906 A JP S59168906A JP 4478783 A JP4478783 A JP 4478783A JP 4478783 A JP4478783 A JP 4478783A JP S59168906 A JPS59168906 A JP S59168906A
Authority
JP
Japan
Prior art keywords
arm
recording
carriage
circuit
connector
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
JP4478783A
Other languages
Japanese (ja)
Inventor
Hiroshi Muto
弘 武藤
Masateru Sasaki
佐々木　政照
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP4478783A priority Critical patent/JPS59168906A/en
Publication of JPS59168906A publication Critical patent/JPS59168906A/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
    • 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
    • G11B33/122—Arrangements for providing electrical connections, e.g. connectors, cables, switches
    • 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
    • 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

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

PURPOSE:To obtain a recording and reproducing system circuit having a stable characteristic by contituting directly a circuit of a recording and reproducing system, on an arm. CONSTITUTION:A magnetic head 16 is held by an arm 14, and the other end of the arm 14 is fixed to a carriage 13 by a connector 11. Electronic parts 12 such as an integrated circuit chip are attached onto the arm 14 by using the body of the arm 14 as a substrate, and a recording and reproducing circuit is formed instead of a recording and reproducing system circuit 6. A circuit pattern formed on the arm 14 by a thin film having a high conductivity is led to the connector 11 for coupling the arm 14 and the carriage 13, and an input and an output of a signal are executed. The connector 11 inputs and outputs a signal, and also executes a mechanical function for fixing the arm 14 to the carriage 13.

Description

【発明の詳細な説明】 （１）発明の技術分野 本発明は磁気ディスク装置、詳しくは信号記録再生系の
信頼性が向上せしめられた磁気ヘッド・アーム構造体に
関する。DETAILED DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to a magnetic disk device, and more particularly to a magnetic head/arm structure with improved reliability of a signal recording/reproducing system.

（２）技術の背景 （１） 従来の磁気ヘッド・アーム構造体においては、記録再生
系の回路をＦＰＣ上に構成し、これを機械的支持機能の
みを有するアーム構造体に接着することにより構成され
ていた。また、信号の伝達は上記ＦＩ’Ｃの一端を延長
し、直接アーム外回路に接続することにより行われてい
た。かかる従来例は第１図に斜視図で示され、同図にお
いて、１はＮＰＣｌ２は磁気ヘッド、３は電子部品、４
はアーム、５はキャリッジ、６はアーム４とは別個の記
録再生系回路を示す。(2) Background of the technology (1) In the conventional magnetic head/arm structure, the recording/reproducing circuit is constructed on an FPC, and this is bonded to an arm structure that only has a mechanical support function. It had been. In addition, signal transmission was performed by extending one end of the FI'C and directly connecting it to the external circuit of the arm. Such a conventional example is shown in a perspective view in FIG. 1, in which 1 denotes a magnetic head, 3 an electronic component, and 4
5 represents an arm, 5 represents a carriage, and 6 represents a recording/reproducing circuit separate from the arm 4.

（３）従来技術と問題点 上記の従来例においては、アームの変位に伴ってＦＰＣ
がわずかながら変形し、信号伝達路の分布定数に変化が
生じ、記録再生特性に影響を与えるという問題がある。(3) Prior art and problems In the above conventional example, the FPC
There is a problem in that the signal is slightly deformed, causing a change in the distribution constant of the signal transmission path, and affecting the recording and reproducing characteristics.

そのような問題点は、低周波数信号のときにはさほど顕
著でないが、高周波数の信号が用いられるときには影響
が大であることが経験されている。It has been experienced that such problems are not so noticeable when using low frequency signals, but have a significant effect when high frequency signals are used.

（４）発明の目的 本発明は上記従来の問題に鑑み、磁気ディス（２） り装置において、安定な特性をもった記録再生系回路を
提供することを目的とする。(4) Purpose of the Invention In view of the above-mentioned conventional problems, it is an object of the present invention to provide a recording/reproducing circuit having stable characteristics in a magnetic disk drive device.

（５）発明の構成 そしてこの目的は本発明によれば、一端において磁気ヘ
ッドを保有し、他端においてキャリッジに固定されたア
ームを具備する磁気ヘッド・アーム構造体から成る磁気
ディスク装置において、記録再生系の回路がアーム上に
直接構成されたことを特徴とする磁気ディスク装置を提
供することによって達成され、また磁気ヘッド・アーム
構造体において、アームとキャリッジの結合部分はコネ
クタにより構成され、かかるコネクタは機械的支持とと
もに信号の入出力機能をもつものとする。(5) Structure and object of the invention According to the present invention, a magnetic disk drive comprising a magnetic head/arm structure having a magnetic head at one end and an arm fixed to a carriage at the other end is capable of recording data. This is achieved by providing a magnetic disk device characterized in that a reproduction system circuit is configured directly on the arm, and in the magnetic head arm structure, the connecting portion between the arm and the carriage is configured by a connector, and such The connector shall have mechanical support as well as signal input/output functions.

（６）発明の実施例 本願発明者は、アーム構造体上に直接電子部品および配
線を構成し、キャリッジとの結合部分を機械的な支持構
成体とするとともに、信号の伝達が可能なコネクタ構造
とすることを考えついた。(6) Embodiments of the Invention The inventor of the present application constructed a connector structure in which electronic components and wiring are directly configured on the arm structure, and the joint part with the carriage is used as a mechanical support structure, and which is capable of transmitting signals. I came up with the idea of doing this.

すなわち、従来の構造体では、アームの変位に伴ってＰ
ＰＣがわずかながら変形し、信号伝達路の分（３） 布定数に変化が律しる一力で、磁気う一イスク装置にお
いては、高密度、高速転送化が要求され、扱う信号の帯
域は非常に高くなっている点に注目した。In other words, in the conventional structure, P
The PC deforms slightly and the signal transmission path changes (3) Due to the governing force of changes in the distribution constants, high density and high speed transfer are required in magnetic single disk devices, and the bandwidth of signals handled is I noticed that it was very high.

従って、信号伝達路の分布定数のわずかの変化によっζ
も記録再生特性に大きな影響を与えることを考慮し、Ｆ
ＰＣを使用することなく剛体であるアーム構造材上に直
接電子部品および配線を構成し、これらの：ｕ１影響が
発４Ｅしないようにするものである。Therefore, due to a slight change in the distribution constant of the signal transmission path, ζ
Considering that the F
Electronic components and wiring are constructed directly on the rigid arm structure material without using a PC, and these :u1 effects are prevented from occurring.

本発明の実施例は第２図に側面図で示され、公知の磁気
ヘット１６は従来例と同様にアーム１４に保持され、ア
ームＩ４の他端はコネクタ１１によりギヤリッジ１３に
固定されている。アーム１４の上には、例えば集積回路
（ＩＣ）チップの如き電子部品１２が、アーム１４の本
体を基板として取り付けられ、第１図の従来例の記録再
生系回路６に代る記録再生回路が形成されている。アー
ム１４の材質は一般にアルミニウムが使用されるが、図
ボの実施例においζは、二酸化シリコン（５ｉ０２）な
どの絶縁性の（４） 高い薄膜をアーム構造材であるアルミニウムの表面に公
知の技術により形成し、更にその上に銅（Ｃｕ）などの
導電性の高い薄膜で回路を構成している。アーム１４の
材質はアルミニウムに限らず、軽量で機械的強度の高い
材質であれば使用可能であり、別の材料として軽量・高
剛体のアルミナも用いられ、またはセラミックをアーム
材とし、その上にアルミニウムで導体パターンを作って
も良い。An embodiment of the present invention is shown in a side view in FIG. 2, in which a known magnetic head 16 is held on an arm 14 as in the conventional example, and the other end of the arm I4 is fixed to the gear ridge 13 by a connector 11. An electronic component 12, such as an integrated circuit (IC) chip, is mounted on the arm 14, using the main body of the arm 14 as a substrate, and a recording/reproducing circuit is provided in place of the conventional recording/reproducing circuit 6 shown in FIG. It is formed. Aluminum is generally used as the material for the arm 14, but in the embodiment shown in the figure, ζ is a highly insulating (4) thin film such as silicon dioxide (5i02) that is coated on the surface of the aluminum that is the arm structure material using a known technique. The circuit is formed using a highly conductive thin film such as copper (Cu) on top of this. The material of the arm 14 is not limited to aluminum, but any material that is lightweight and has high mechanical strength can be used. Lightweight and highly rigid alumina may also be used as another material, or ceramic may be used as the arm material, and The conductor pattern may be made of aluminum.

アーム１４上に導電性の商い薄膜により形成された回路
パターンは、アーム１４とキャリッジ１３を結合するコ
ネクタ１１に導かれ、信号の入出力が行われる。コネク
タ１１は、信号の入出力をすると同時にアーム１４をキ
ャリッジ１３に固定する機械的な機能をも果す。A circuit pattern formed of a conductive thin film on the arm 14 is guided to a connector 11 that connects the arm 14 and the carriage 13, and input/output of signals is performed. The connector 11 performs the mechanical function of inputting and outputting signals and fixing the arm 14 to the carriage 13 at the same time.

以上説明したように本発明の実施例によれば、記録再生
系の回路をアーム１４上に直接構成すること、およびア
ーム１４とキャリッジ１３の結合部分をコネクタ構造と
することにより、アーム１４の変位に関して安定な特性
をもった記録再生系を提供することができる。As explained above, according to the embodiment of the present invention, by configuring the recording/reproducing system circuit directly on the arm 14 and by forming the connecting portion between the arm 14 and the carriage 13 into a connector structure, the displacement of the arm 14 can be adjusted. Therefore, it is possible to provide a recording/reproducing system having stable characteristics.

（５） また、アーム１４の材質として、導電性の高いアルミニ
ウムなどを使用すれば、これによるシールド効果も期待
しうる。その他、本発明の実施例では使用部品点数が減
少し、組立に際して工程数が減ることなどから、生産性
の向上にも寄与するところが多大である。(5) Furthermore, if highly conductive aluminum or the like is used as the material of the arm 14, a shielding effect can be expected due to this. In addition, the embodiments of the present invention reduce the number of parts used and reduce the number of steps during assembly, which greatly contributes to improved productivity.

（７）発明の効果 以上詳細に説明した如く、本発明によれば、磁気ディス
ク装置において、記録再生系の回路を直接アーム上に構
成し、アームとキャリッジとの結合部分をコネクタ構造
とすることにより、不確定要素が除去され安定した特性
をもった記録再生系回路が提供され、アームを導電性の
高い材料で構成するとシールド効果も得られ、更には、
使用部品点数が少ないので工程数が減少され、磁気ディ
スク装置の信頼性向上と生産性の向上に効果大である。(7) Effects of the Invention As explained in detail above, according to the present invention, in a magnetic disk device, the recording/reproducing circuit is directly configured on the arm, and the connecting portion between the arm and the carriage is of a connector structure. This eliminates uncertainties and provides a recording/reproducing circuit with stable characteristics.If the arm is made of a highly conductive material, a shielding effect can be obtained, and furthermore,
Since the number of parts used is small, the number of steps is reduced, which is highly effective in improving the reliability and productivity of magnetic disk drives.

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

第１図は従来の磁気ヘッド・アーム構造体の斜視図、第
２図は本発明による磁気ヘッド・アー（６） ム構造体の側面図である。 １１−　アームとキャリッジの結合コネクタ、１２−電
子部品、１３−　キャリッジ・１４−アーム、１５−磁
気ディスク、 １６−磁気へソド 特　許　出願人　　富士通株式会社 （７） 第１図 第２図 ３FIG. 1 is a perspective view of a conventional magnetic head arm structure, and FIG. 2 is a side view of a magnetic head arm structure according to the present invention. 11- Arm and carriage connector, 12- Electronic components, 13- Carriage/14- Arm, 15- Magnetic disk, 16- Magnetic hesode patent Applicant: Fujitsu Ltd. (7) Figure 1, Figure 2, Figure 3

Claims (2)

【特許請求の範囲】[Claims] （１）一端において磁気ヘッドを保自し、他端において
キャリッジに固定されたアームを具備する磁気ヘット・
アーム構造体から成る磁気ディスク装置において、記録
再仕系の回路がアーム上に直接構成されたことを特徴と
する磁気ディスク装置。(1) A magnetic head that holds a magnetic head at one end and has an arm fixed to a carriage at the other end.
1. A magnetic disk device comprising an arm structure, characterized in that a recording reprocessing circuit is directly constructed on the arm. （２）前記磁気ヘソ、ト・アーム構造体において、アー
ムとキャリッジの結合部分はコネクタにより構成され、
かかるコネクタは機械的支持とともに信号の入出力機能
をもつことを特徴とする特許請求の範囲第１項記載の磁
気ディスク装置。(2) In the magnetic belly button arm structure, the connecting portion between the arm and the carriage is constituted by a connector;
2. A magnetic disk drive according to claim 1, wherein said connector has a signal input/output function as well as mechanical support.
JP4478783A 1983-03-17 1983-03-17 Magnetic disk device Pending JPS59168906A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4478783A JPS59168906A (en) 1983-03-17 1983-03-17 Magnetic disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4478783A JPS59168906A (en) 1983-03-17 1983-03-17 Magnetic disk device

Publications (1)

Publication Number Publication Date
JPS59168906A true JPS59168906A (en) 1984-09-22

Family

ID=12701116

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4478783A Pending JPS59168906A (en) 1983-03-17 1983-03-17 Magnetic disk device

Country Status (1)

Country Link
JP (1) JPS59168906A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6242166U (en) * 1985-08-30 1987-03-13
JPS63213103A (en) * 1987-02-27 1988-09-06 Matsushita Electric Ind Co Ltd Floppy disk device
US5014145A (en) * 1987-07-10 1991-05-07 Hitachi, Ltd. Head arm structure mounting a circuit element in a magnetic disc device
JPH06168556A (en) * 1992-08-25 1994-06-14 Internatl Business Mach Corp <Ibm> Combination assembly of converter and suspension part and its treatment method as well as data processor provided with said assembly
US6507459B1 (en) 1999-03-17 2003-01-14 Tdk Corporation Head slider suspension, head assembly, and information recording and reproducing apparatus with improved wiring pattern
US6765763B2 (en) * 2000-06-16 2004-07-20 Seagate Technology Llc Actuator system for disc drive

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6242166U (en) * 1985-08-30 1987-03-13
JPS63213103A (en) * 1987-02-27 1988-09-06 Matsushita Electric Ind Co Ltd Floppy disk device
US5014145A (en) * 1987-07-10 1991-05-07 Hitachi, Ltd. Head arm structure mounting a circuit element in a magnetic disc device
JPH06168556A (en) * 1992-08-25 1994-06-14 Internatl Business Mach Corp <Ibm> Combination assembly of converter and suspension part and its treatment method as well as data processor provided with said assembly
US6507459B1 (en) 1999-03-17 2003-01-14 Tdk Corporation Head slider suspension, head assembly, and information recording and reproducing apparatus with improved wiring pattern
US6765763B2 (en) * 2000-06-16 2004-07-20 Seagate Technology Llc Actuator system for disc drive

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