JPH01113980A - Magnetic disk device - Google Patents

Magnetic disk device

Info

Publication number
JPH01113980A
JPH01113980A JP27018187A JP27018187A JPH01113980A JP H01113980 A JPH01113980 A JP H01113980A JP 27018187 A JP27018187 A JP 27018187A JP 27018187 A JP27018187 A JP 27018187A JP H01113980 A JPH01113980 A JP H01113980A
Authority
JP
Japan
Prior art keywords
magnetic disk
disk medium
base
magnetic head
fixed shaft
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.)
Granted
Application number
JP27018187A
Other languages
Japanese (ja)
Other versions
JP2713925B2 (en
Inventor
Marutomo Gotou
丸朋 後藤
Katsuyuki Tanaka
勝之 田中
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62270181A priority Critical patent/JP2713925B2/en
Publication of JPH01113980A publication Critical patent/JPH01113980A/en
Application granted granted Critical
Publication of JP2713925B2 publication Critical patent/JP2713925B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/40—Applying molten plastics, e.g. hot melt
    • B29C65/42—Applying molten plastics, e.g. hot melt between pre-assembled parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
    • B29C66/52292—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being internal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52297—Joining tubular articles involving the use of a socket said socket comprising slip-off prevention means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/97—Checking completion of joining or correct joining by using indications on at least one of the joined parts
    • B29C66/976—Checking completion of joining or correct joining by using indications on at least one of the joined parts by the use of an indicator pin, e.g. being integral with one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3468—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the means for supplying heat to said heated elements which remain in the join, e.g. special electrical connectors of windings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moving Of Heads (AREA)

Abstract

PURPOSE:To reduce an off tracking by defining a support structure consisting of the central axis fixing shaft of a magnetic disk medium rotating mechanism and the central fixing shaft of an oscillation type magnetic head driving mechanism and more than one auxiliary support members to be a both end support structure. CONSTITUTION:Both the ends of the central fixing shaft 3 of the magnetic disk medium rotating mechanism, the central fixing shaft 4 of the oscillation type magnetic head driving mechanism and the auxiliary support member are supported and fixed to an upper sub-base 6a and a lower sub-base 6b. Therefore, to an oscillation generated by an asynchronous oscillation to the constant rotating speed of the magnetic disk medium rotating mechanism and the high speed operation of the oscillation type magnetic head driving mechanism and an external oscillation received from a magnetic disk device, a complete rigidity can be maintained. Thereby, the off tracking is reduced.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は磁気ディスク装置に係シ、時に磁気ディスク媒
体回転機構の中心軸固定軸と揺動形磁気ヘッド駆動機構
の中心固定軸と１つ以上の補助支持部材の支持構造を両
端支持構造とし、オフトラックの低減をするのに好適な
磁気ディスク装置に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a magnetic disk device, and sometimes includes a central fixed shaft of a magnetic disk medium rotation mechanism and a central fixed shaft of an oscillating magnetic head drive mechanism. The present invention relates to a magnetic disk device in which the supporting structure of the auxiliary supporting member is a both-end supporting structure and is suitable for reducing off-track.

〔従来の技術〕[Conventional technology]

従来の磁気ディスク装置は、例えば特開昭６１−１５１
８８１号公報に開示されているように、磁気ディスク媒
体回転機構の中心固定軸と揺動形磁気ヘッド駆動機構の
中心固定軸は片端支持構造となっていた。Conventional magnetic disk devices include, for example, Japanese Patent Application Laid-Open No. 61-151.
As disclosed in Japanese Patent Application No. 881, the central fixed shaft of the magnetic disk medium rotation mechanism and the central fixed shaft of the oscillating magnetic head drive mechanism have a one-end support structure.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

上記従来技術は、磁気ディスク媒体回転機構の中心固定
軸と揺動形磁気ヘッド駆動機構の中心固定軸のベース体
に対する相対的な倒れに伴うオフトラックの点について
配慮されておらず、前記２つの中心固定軸のうちの１つ
あるいは両方の倒れが必ず発生するという問題がめった
。The above-mentioned conventional technology does not take into account off-track issues caused by relative inclination of the central fixed shaft of the magnetic disk medium rotation mechanism and the central fixed shaft of the oscillating magnetic head drive mechanism with respect to the base body. A problem has arisen in which one or both of the central fixed shafts inevitably collapses.

本発明の目的は、前記磁気ディスク媒体回転機構の一定
回転速度に対する非同期振動と前記揺動形磁気ヘッド駆
動機構の高速動作により発生する振動と磁気ディスク装
置外から受ける外部振動に対して、十分な剛性を保め、
さらに前記各振動と、磁気ディスク装置のハウジング内
の温度分布と前記ハウジング外の温度変化に起因するオ
フトラックを低減することにある。An object of the present invention is to provide sufficient protection against asynchronous vibrations with respect to a constant rotational speed of the magnetic disk medium rotation mechanism, vibrations generated by high-speed operation of the oscillating magnetic head drive mechanism, and external vibrations received from outside the magnetic disk drive. Maintain rigidity,
Furthermore, the present invention aims to reduce off-track caused by the vibrations, temperature distribution inside the housing of the magnetic disk drive, and temperature changes outside the housing.

〔問題点を解決するための手段〕[Means for solving problems]

上記目的は、磁気ディスク媒体回転機構の中心固定軸と
揺動形磁気ヘッド駆動機構の中心固定軸と１つ以上の補
助支持部材の両端を、磁気ディスク装置のハウジング内
の上部サブベースと下部サブベースに、支持固定するこ
とによシ、達成される。The above purpose is to connect both ends of the central fixed shaft of the magnetic disk medium rotating mechanism, the central fixed shaft of the oscillating magnetic head drive mechanism, and one or more auxiliary support members to the upper sub-base and lower sub-base within the housing of the magnetic disk drive. This is achieved by supporting and fixing it to the base.

さらに、上記目的は上記両端支持構造において、前記磁
気ディスク媒体回転機構の中心固定軸と前記揺動形磁気
ヘッド駆動機構の中心固定軸と前記１つ以上の補助支持
部材とそれらを両端支持固定するのに必要な上部サブベ
ース及び下部サブベース及び固定部材を同一の熱膨張率
の部材にすることにより、上記両端支持構造だけの構成
よりも十分効果的に、達成される。Further, the above object is to support and fix the central fixed shaft of the magnetic disk medium rotating mechanism, the central fixed shaft of the oscillating magnetic head drive mechanism, and the one or more auxiliary support members at both ends in the double end support structure. By making the upper sub-base, the lower sub-base, and the fixing member necessary for this to be members having the same coefficient of thermal expansion, this can be achieved more effectively than in the configuration of only the support structure at both ends.

〔作用〕[Effect]

このような装置構成において、磁気ディスク媒体回転機
構の中心固定軸と揺動形磁気ヘッド駆動機構の中心固定
軸と１つ以上の補助支持部材の両端を、磁気ディスク装
置のハウジング内の上部テプペー誠と下部サブベースに
、支持固定することによって、前記磁気ディスク回転機
構の一定回転速度に対する非同期振動と前記揺動形磁気
ヘッド駆動機構の高速動作によ多発生する振動と磁気デ
ィスク装置外から受ける外部振動に対して、十分な剛性
を保ち、また前記各振動と前記ハウジング内の温度分布
と前記ハウジング外の温度変化に起因するオフトラック
を低減することができる。In such a device configuration, both ends of the central fixed shaft of the magnetic disk medium rotation mechanism, the central fixed shaft of the oscillating magnetic head drive mechanism, and one or more auxiliary support members are connected to the upper tapered shaft in the housing of the magnetic disk device. By supporting and fixing the magnetic disk rotating mechanism to the lower sub-base, it is possible to prevent asynchronous vibrations of the magnetic disk rotation mechanism at a constant rotation speed, vibrations often generated due to high-speed operation of the oscillating magnetic head drive mechanism, and external effects received from outside the magnetic disk drive. Sufficient rigidity can be maintained against vibrations, and off-track caused by the vibrations, temperature distribution inside the housing, and temperature changes outside the housing can be reduced.

さらに、上記両端支持構成において、前記磁気ディスク
媒体回転機構の中心固定軸と前記揺動形磁気ヘッド駆動
機構の中心固定軸と前記１つ以上の補助支持部材とそれ
らを両端支持固定するのに必要な上部サブベース及び下
部サブベース及び固定部材を同一の熱膨張率の部材にす
ることにょシ。Furthermore, in the above-mentioned both-end support configuration, the central fixed shaft of the magnetic disk medium rotation mechanism, the central fixed shaft of the oscillating magnetic head drive mechanism, and the one or more auxiliary support members are necessary for supporting and fixing them at both ends. It is recommended that the upper sub-base, lower sub-base, and fixing member be made of members with the same coefficient of thermal expansion.

上記両端支持構造だけの構成よりも十分効果的にオフト
ラックを低減することができる。Off-track can be reduced more effectively than in the configuration with only the above-mentioned both-end support structure.

〔実施例〕〔Example〕

以下、本発明の一実施例を第１図、第２図に基づいて説
明する。第１図は本発明の磁気ディスク装置の一実施例
の主要断面図、第２図は、第１図の組立状態を示す斜視
図である。An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 is a main sectional view of an embodiment of the magnetic disk device of the present invention, and FIG. 2 is a perspective view showing the assembled state of FIG. 1.

複数枚の磁気ディスク媒体１は、磁気ディスク媒体スペ
ーサ１６を介して、磁気ディスク媒体クランプ１５を用
いて、磁気ディスク媒体ハブ１７に固定されている。前
記磁気ディスク媒体ハブ１７には、前記磁気ディスク媒
体１の回転駆動モータの回転子１８ｂが固定されている
。前記磁気ディスク媒体ハブ１７は、軸受１４　ａ、　
　１４　ｂｌに’介して磁気ディスク媒体回転機構の中
心固定軸３に取り付けられている。回転駆動モータ１８
の固定子１８ａが固定された前記中心固定軸３の両端は
、上部サブベース６ａと下部サブベース６ｂに。The plurality of magnetic disk media 1 are fixed to a magnetic disk medium hub 17 via a magnetic disk medium spacer 16 using a magnetic disk medium clamp 15 . A rotor 18b of a rotary drive motor for the magnetic disk medium 1 is fixed to the magnetic disk medium hub 17. The magnetic disk medium hub 17 includes a bearing 14a,
14 bl' is attached to the central fixed shaft 3 of the magnetic disk medium rotation mechanism. Rotary drive motor 18
Both ends of the central fixed shaft 3 to which the stator 18a is fixed are attached to an upper sub-base 6a and a lower sub-base 6b.

固定ネジ１０ａ、１０ｂを用いて、支持固定されている
。前記下部サブベース６ｂは、ハウジングと呼ばれるケ
ース体８とカバ一体９のうちの前記ケース体８に固定さ
れた接続部材１３ａ、１３ｂに固定されている。又前記
中心固定軸３と前記磁気ディスク媒体ハブ１７の間に、
磁性流体シール１９　ａ、　　１９　ｂを取り付けてい
る。It is supported and fixed using fixing screws 10a and 10b. The lower sub-base 6b is fixed to a case body 8 called a housing and connection members 13a and 13b fixed to the case body 8 of the cover assembly 9. Further, between the central fixed shaft 3 and the magnetic disk medium hub 17,
Magnetic fluid seals 19a and 19b are attached.

複数個の磁気ヘッド２は、アームスペーサ２２を介して
、・アームクランプ２３を用いて、アームハブ２０に固
定されたアーム７に支持されている。The plurality of magnetic heads 2 are supported by an arm 7 fixed to an arm hub 20 via an arm spacer 22 and using an arm clamp 23.

前記アームハブ２０は、軸受２１ａ、２１ｂを介して、
揺動形磁気ヘッド回転機構の中心固定軸４に取シ付けら
れているう前記中心固定軸４の両端は、前記上部サブベ
ース６ａと前記サプペース６ｂＫ％固定ネジ１２ａ、１
２ｂを用いて、支持固定されている。The arm hub 20, via bearings 21a and 21b,
Both ends of the center fixed shaft 4, which is attached to the center fixed shaft 4 of the oscillating magnetic head rotation mechanism, are connected to the upper sub-base 6a and the sub-space 6b with K% fixing screws 12a, 1.
It is supported and fixed using 2b.

前記揺動形磁気へノド駆動機構の駆動力は、ヨーク２５
、磁石２７ａ、２７ｂ、７−ム：ｘ、　ヘ−９２２に固
定されたボビン２４．前記ボビン２４に固定されたコイ
ル２６から構成されるｇ動部から引き出すことが可能で
るる。The driving force of the oscillating magnetic throat drive mechanism is generated by the yoke 25.
, magnets 27a, 27b, 7-mm:x, bobbin 24 fixed to heme 922. It can be pulled out from a g-movement section consisting of a coil 26 fixed to the bobbin 24.

補助支持部材５の両端は、前記上部サブペース６ａと前
記サブペース６ｂに、固定ネジ１１ａ。Both ends of the auxiliary support member 5 are provided with fixing screws 11a in the upper subspace 6a and the subspace 6b.

１１ｂを用いて、支持固定されている。It is supported and fixed using 11b.

このように構成された磁気ディスク装置において、前記
磁気ディスク媒体回転機構の中心固定軸３と前記揺動形
磁気ヘッド駆動機構の中心固定軸４と前記補助支持部材
５の両端が、前記上部サブベース６ａと前記下部サブペ
ース６ｂに支持固定されているので、前記磁気ディスク
媒体回転機構の一定回転速度に対する非同期振動と前記
揺動形磁気ヘッド駆動機構の高速動作により発生する振
動と磁気ディスク装置外から受ける外部振動に対して、
十分な剛性を保ち、また前記各振動と前記ハウジング内
の温度分布と前記ノ・ウジフグ外の温度変化に起因する
オフトラックが低減される効果がある。In the magnetic disk drive configured as described above, both ends of the fixed center shaft 3 of the magnetic disk medium rotation mechanism, the fixed center shaft 4 of the oscillating magnetic head drive mechanism, and the auxiliary support member 5 are connected to the upper sub-base. 6a and the lower sub-space 6b, it is protected against asynchronous vibrations with respect to a constant rotational speed of the magnetic disk medium rotation mechanism, vibrations generated by high-speed operation of the oscillating magnetic head drive mechanism, and vibrations from outside the magnetic disk drive. Against external vibrations,
It has the effect of maintaining sufficient rigidity and reducing off-track caused by the vibrations, temperature distribution inside the housing, and temperature changes outside the housing.

さらに、上記両端支持構造において、前記磁気ディスク
媒体回転機構の中心固定軸３と前記揺動形磁気ヘッド駆
動機構の中心固定軸４と前記補助支持部材５とそれらを
両端支持構造するのに必要な前記上部サブベース６ａ及
び前記下部サブベース６ｂ及び前記固定部材１０ａ、１
０ｂ、ｌｌａ。Furthermore, in the above-mentioned both-end support structure, the central fixed shaft 3 of the magnetic disk medium rotation mechanism, the central fixed shaft 4 of the oscillating magnetic head drive mechanism, the auxiliary support member 5, and the necessary support structure for supporting them at both ends are further provided. The upper sub-base 6a, the lower sub-base 6b, and the fixing members 10a, 1
0b, lla.

１１ｂ、１２ａ、１２ｂを同一の熱膨張率にすることに
より、上記両端支持構造だけの構成よりも十分効果的に
オフトラックが低減される効果がめる。By making the thermal expansion coefficients 11b, 12a, and 12b the same, it can be seen that off-track can be reduced more effectively than in the configuration with only the support structure at both ends.

〔発明の効果〕〔Effect of the invention〕

本発明′によれは、磁気ディスク媒体回転機構の一定回
転速度に対する非同期振動と揺動形磁気ヘッド駆動機構
の高速動作によシ発生する振動と磁気ディスク装置外の
外部振動に対して、十分な剛性を保ち、前記各振動と磁
気ディスク装置のハウジング内の温度分布と前記ハウジ
ング外の温度変化が生じても、オフトラックが低減され
る効果がある。According to the present invention, sufficient protection against asynchronous vibrations at a constant rotational speed of the magnetic disk medium rotation mechanism, vibrations generated by high-speed operation of the oscillating magnetic head drive mechanism, and external vibrations outside the magnetic disk drive is achieved. This has the effect of maintaining rigidity and reducing off-track even when the vibrations, temperature distribution inside the housing of the magnetic disk device, and temperature changes outside the housing occur.

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

第１図は本発明の磁気ディスク装置の一実施例を示す主
要断面図、第２図は第１図の組立状態を示す斜視図であ
る。 １・・・磁気ディスク媒体、２・・・磁気ヘッド、３・
・・磁気ディスク媒体回転機構の中心固定軸、４・・・
揺動形磁気ヘッド駆動機構の中心固定軸、５・・・補助
支持部材、５ａ・・・上部サブベース、６ｂ・・・下部
サブベース、８・・・ケース体、９・・・カバ一体％１
３ａ。 １３　ｂ　・・・接続部材ｓ　１０ａ、ｆｏｂ、ｌｌａ
。 １１ｂ、１２ａ、１２ｂ・−固定部材。FIG. 1 is a main sectional view showing an embodiment of the magnetic disk device of the present invention, and FIG. 2 is a perspective view showing the assembled state of FIG. 1. 1... Magnetic disk medium, 2... Magnetic head, 3.
... Central fixed shaft of magnetic disk medium rotation mechanism, 4...
Center fixed shaft of swing type magnetic head drive mechanism, 5... Auxiliary support member, 5a... Upper sub-base, 6b... Lower sub-base, 8... Case body, 9... Cover integrated% 1
3a. 13 b ... Connection member s 10a, fob, lla
. 11b, 12a, 12b--fixing member.

Claims (1)

【特許請求の範囲】 １、磁気ディスク媒体と前記磁気ディスク媒体を回転す
る磁気ディスク媒体回転機構と前記磁気ディスク媒体に
対して情報の記録・再生を行う磁気ヘッドと前記磁気ヘ
ッドを前記磁気ディスク媒体に対して位置決めする揺動
形磁気ヘッド駆動機構とをハウジング内に配置したもの
において、 前記磁気ディスク媒体回転機構の中心固定軸と前記揺動
形磁気ヘッド駆動機構の中心固定軸と１つ以上の補助支
持部材が、それぞれその一端を、前記ハウジング内の上
部サブベースに固定され、その他端を、前記ハウジング
内の下部サブベースに固定された両端支持固定を特徴と
する磁気ディスク装置。 ２、前記磁気ディスク媒体回転機構の中心固定軸と前記
揺動形磁気ヘッド駆動機構の中心固定軸と前記１つ以上
の補助支持部材と、それらを両端支持固定するのに必要
な上部サブベース及び下部サブベース及び固定部材を同
一の熱膨張率の部材にしたことを特徴とする特許請求の
範囲第１項記載の磁気ディスク装置。[Scope of Claims] 1. A magnetic disk medium, a magnetic disk medium rotation mechanism that rotates the magnetic disk medium, a magnetic head that records and reproduces information on and from the magnetic disk medium, and a magnetic head that rotates the magnetic disk medium. an oscillating magnetic head drive mechanism positioned within a housing, the central fixed shaft of the magnetic disk medium rotation mechanism, the central fixed shaft of the oscillating magnetic head drive mechanism, and one or more A magnetic disk drive characterized in that each auxiliary support member has both ends supported and fixed, with one end fixed to an upper sub-base within the housing and the other end fixed to a lower sub-base within the housing. 2. The central fixed shaft of the magnetic disk medium rotation mechanism, the central fixed shaft of the oscillating magnetic head drive mechanism, the one or more auxiliary support members, and an upper sub-base necessary for supporting and fixing them at both ends. 2. A magnetic disk drive according to claim 1, wherein the lower sub-base and the fixing member are made of members having the same coefficient of thermal expansion.
JP62270181A 1987-10-28 1987-10-28 Magnetic disk device Expired - Lifetime JP2713925B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62270181A JP2713925B2 (en) 1987-10-28 1987-10-28 Magnetic disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62270181A JP2713925B2 (en) 1987-10-28 1987-10-28 Magnetic disk device

Publications (2)

Publication Number Publication Date
JPH01113980A true JPH01113980A (en) 1989-05-02
JP2713925B2 JP2713925B2 (en) 1998-02-16

Family

ID=17482654

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62270181A Expired - Lifetime JP2713925B2 (en) 1987-10-28 1987-10-28 Magnetic disk device

Country Status (1)

Country Link
JP (1) JP2713925B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996023300A1 (en) * 1995-01-23 1996-08-01 Iomega Corporation Compliant anchor for securing disk drive actuator bearing
US5587855A (en) * 1993-12-01 1996-12-24 Samsung Electronics Co., Ltd. Supporting device for minimizing vibration, noise and external impact of a hard disk drive
US5951316A (en) * 1992-12-07 1999-09-14 Fujitsu Limited Connector

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62173686A (en) * 1986-01-27 1987-07-30 Fujitsu Ltd Magnetic disk device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62173686A (en) * 1986-01-27 1987-07-30 Fujitsu Ltd Magnetic disk device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5951316A (en) * 1992-12-07 1999-09-14 Fujitsu Limited Connector
US5587855A (en) * 1993-12-01 1996-12-24 Samsung Electronics Co., Ltd. Supporting device for minimizing vibration, noise and external impact of a hard disk drive
WO1996023300A1 (en) * 1995-01-23 1996-08-01 Iomega Corporation Compliant anchor for securing disk drive actuator bearing
US5590002A (en) * 1995-01-23 1996-12-31 Iomega Corporation Compliant anchor for securing disk drive actuator bearing

Also Published As

Publication number Publication date
JP2713925B2 (en) 1998-02-16

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