JPS5960778A - Magnetic disk device - Google Patents

Magnetic disk device

Info

Publication number
JPS5960778A
JPS5960778A JP17146782A JP17146782A JPS5960778A JP S5960778 A JPS5960778 A JP S5960778A JP 17146782 A JP17146782 A JP 17146782A JP 17146782 A JP17146782 A JP 17146782A JP S5960778 A JPS5960778 A JP S5960778A
Authority
JP
Japan
Prior art keywords
head
disk
force
dust
spindle motor
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
JP17146782A
Other languages
Japanese (ja)
Inventor
Hiroo Nomura
野村　浩朗
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha 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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP17146782A priority Critical patent/JPS5960778A/en
Publication of JPS5960778A publication Critical patent/JPS5960778A/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
    • G11B5/41—Cleaning of heads
    • 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
    • G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
    • 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

Abstract

PURPOSE:To adsorb the dust and to give pressure to a head, by attaching blades to a spindle motor, revolving these blades together with the spindle motor to obtain a steady air current and making use of the sucking force and discharging force. CONSTITUTION:The blades 17 are attached at the bottom part of a spindle motor 14, and these blades produce an air current as shown in the figure with revolutions of the motor 14. An intake port of the air current is provided at a place near a magnetic head 18 to suck the dust crowded at the area near a contact between the head 18 and a disk 11. These dust are collected by a filter 19. The figure shows a structure in which a discharge port 22 of the air current is formed right above the head 18 and the head 11 is pressed to the surface of the disk 11 by the discharging force. In this case, a both-sided head is used. An upper head is supported by a gimbal 24 attached to a carrier 23, and a lower head is also fixed to the carrier 23 in the same way. The nozzle of the discharge port is set right above the head to apply the force vertically to the head. Thus the fixation is improved between the head 18 and the disk 11.

Description

【発明の詳細な説明】 本発明は装置内に空気の定常的な流れを作り、その吸引
力、又は排気力を有効に利用する磁気ディスク装置に関
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic disk device that creates a steady flow of air within the device and effectively utilizes its suction or exhaust force.

従来磁気ディスク装置内に空気流を作る方法としては、
第１図に示すような装置の外にプロアイを有するハード
ディスク装置がある。即ち、スピンドル２に設置された
磁気ディスク３と、磁気ヘッド４、キャリッジ５、アク
チュエータ６からなるヘッド機構を装置フレーム７上に
１詔し、これをカバー８によって覆い、その外部にブロ
アー１とフィルター９からなる空気流入口を設け、細端
をその排気口としているものである。この装置では、こ
のような空気の流れを装置内のり体を清浄にする目的で
使用しており、塵埃によるヘッドクラッシュを避けるこ
とが主眼である。また、このような機構では装置の小型
化が難しいのが欠点である。Conventional methods for creating airflow within magnetic disk drives include:
In addition to the device shown in FIG. 1, there is a hard disk device having a professional eye. That is, a head mechanism consisting of a magnetic disk 3 installed on a spindle 2, a magnetic head 4, a carriage 5, and an actuator 6 is mounted on a device frame 7, covered with a cover 8, and a blower 1 and a filter are installed outside. An air inlet consisting of 9 is provided, and the narrow end is used as an exhaust port. In this device, such air flow is used for the purpose of cleaning the vehicle inside the device, and the main purpose is to avoid head crashes caused by dust. Another disadvantage of such a mechanism is that it is difficult to miniaturize the device.

本発明は従来の磁気ディスク装置にあるような空気清浄
化を目的としたものではなく、空気流によって生１゛る
吸引力、あるいは、排気力を積極的に利用し、ヘッド周
辺の塵埃の吸引、ヘッドの押しっけを行なうものである
。また、＠置の小型化が可能となるよう空気流を生み出
す機構にスピンドルモーターを利用するものである。The present invention is not intended to purify the air as in conventional magnetic disk drives, but actively utilizes the suction force or exhaust force generated by airflow to suction dust around the head. , which pushes the head. In addition, a spindle motor is used in the mechanism that generates the air flow so that the @ position can be made more compact.

第２図は本発明をフロッピーディスク装置に適用した例
である。即ち、ジャケット１０内に収められた７０ヴビ
ーデイスク１１けハブ１２によってスピンドル１′５に
クランプされ、スピンドルモーター１４からベルト１５
によって伝達された回転力によって所定の回転数で回転
する。一方、スピンドルモーター１４の底部に１″を空
気の流れを作る為の羽根１７が耶付けられており、モー
ターの回転と同時に図示したような空乞の流れが生じろ
。FIG. 2 shows an example in which the present invention is applied to a floppy disk device. That is, it is clamped to the spindle 1'5 by a hub 12 containing 11 70V discs housed within the jacket 10, and the belt 15 is connected from the spindle motor 14 to the spindle 1'5.
It rotates at a predetermined rotational speed due to the rotational force transmitted by. On the other hand, a blade 17 for creating an air flow of 1'' is attached to the bottom of the spindle motor 14, and as the motor rotates, an air flow as shown is generated.

この空り流の泡入口は磁勿ヘッド１８の近傍に設置すれ
ており、当然ヘッド１８とディスク１１の接触付近に集
まってくる塵埃を吸引し、これをフィルタ１９で捕える
ことになる。従って、この空気の取入口２１けディスク
の回転に対し、時間的に先行する位置でへヴド１８に接
近させることがよく、ディスクに付着したゴミ、ディス
クと磁気ヘッドの接触による摩耗のゴミ等をリート／ラ
イトの直前に取除くことができる。The air bubble inlet is installed near the magnetic head 18, and as a matter of course, it attracts dust that collects near the contact between the head 18 and the disk 11, and the filter 19 traps the dust. Therefore, it is best to approach the head 18 at a position temporally preceding the rotation of the disk with this air intake port 21, so that dust attached to the disk, dust caused by wear due to contact between the disk and the magnetic head, etc. can be removed just before leet/write.

第６図はディスクをダイレクトドライブする場合の本発
明の適月例である。この例ではスピンドルモーター１４
の上部にスピンドルハブ１２を設け、フロッピーディス
ク１１を回転ばせると同時に、モーターに対し反対伸に
取付はられた羽根１７も回すことによって定常的な９ｍ
の流れをつくる。FIG. 6 is a suitable example of the present invention when directly driving a disk. In this example, the spindle motor 14
A spindle hub 12 is installed on the top of the motor, and at the same time the floppy disk 11 is rotated, a blade 17 installed in the opposite direction to the motor is also rotated.
Create a flow.

その取入口２１け第２図の場合と同様に磁気ヘッド１８
の近傍に設置する。この場合羽根１７０重量、回転のバ
ランス等を者慮するとディスクの回転の安定性を増すこ
とも可能となる。即ち、モーターの回転に対するイナー
シャを土げる事になる。As in the case of FIG. 2, the magnetic head 18 has 21 intake ports.
Install it near. In this case, by considering the weight of the blade 170, the balance of rotation, etc., it is possible to increase the stability of rotation of the disk. In other words, the inertia with respect to the rotation of the motor is reduced.

前述した２例は磁かヘッド周辺の塵埃を吸引する目的で
構成した本発明の応用例であるが、逆に排包の際の力を
応用すると次の様になる。The two examples described above are application examples of the present invention configured for the purpose of attracting dust around the magnetic head, but if the force at the time of ejection is applied conversely, the following will occur.

第４図は空り流の排気口２２を磁気ヘッド１８の直上に
設け、排夕の力によってヘッドをディスク面１１に押し
つ打石構造を示している。この図の場合、ヘッドは両面
タイプであり、上ヘッドはキャリア２３に取り付けられ
たジンバル２４によって支持これている。また、下ヘッ
ドも同様にキャリアに固定されているが、図のようなジ
ンバルｆよる柔らかい支持以外に片面ヘッドの場合と同
じようにガラチリと固定するタイプもある。本発明の意
図する所は図からも明らかなように、磁気ヘッド１８と
ディスク１１の密着性を良くすることで、その為に排気
口のノズルをヘッドのｔｈに置き、ヘッドに垂ｉｆ　Ｖ
ｃ力が加わるよう設計されている。本発明を従来の製雪
と比較すると、これまでの方式では上ヘツドキャリアは
ある支点を中心にソレノイドによってローディングし下
げる構造になっている。即ち、ヘッドは円弧を画くよう
に運動し、へ・ノドに作用する力は常にその接線方向に
ある。従って、ヘッドのスライダー面をディスクに完全
に平行にもっていかなければ、正しいヘッド荷重となら
なかった。また、このような条件の整うチャンスは実際
の装置の知立誤差から皆無といえる。そこで、本発明で
はこのような欠点を補なう方法として、ヘッドの直上か
ら空包圧をかけ、接線方向に働く力を補正し、よね正し
いヘッド接触が得られるよう工夫されたものである。′
！ｆた、へ・ノドに対する空気圧は正確にヘッドに手直
となるようノズルや、空りの当る面の工夫が必要であり
、第４図はその一つの例としてヘッドに円い凹みをつは
たものである。FIG. 4 shows a structure in which an air exhaust port 22 is provided directly above the magnetic head 18, and the head is pushed against the disk surface 11 by the ejecting force. In this figure, the head is a double-sided type, and the upper head is supported by a gimbal 24 attached to a carrier 23. The lower head is similarly fixed to the carrier, but in addition to the soft support provided by the gimbal f as shown in the figure, there is also a type in which it is firmly fixed in the same way as the single-sided head. As is clear from the figure, the purpose of the present invention is to improve the adhesion between the magnetic head 18 and the disk 11, and for this purpose, the exhaust nozzle is placed on the th of the head, and if V is perpendicular to the head.
It is designed to apply c force. Comparing the present invention with conventional snow making, in the conventional system the upper head carrier has a structure in which it is loaded and lowered by a solenoid around a certain fulcrum. That is, the head moves in a circular arc, and the force acting on the head and throat is always in the tangential direction. Therefore, the correct head load could not be achieved unless the slider surface of the head was completely parallel to the disk. Furthermore, there is no chance of meeting such conditions due to the errors in actual equipment. Therefore, in the present invention, as a method to compensate for such drawbacks, an empty cartridge pressure is applied from directly above the head, and the force acting in the tangential direction is corrected, so that correct head contact can be obtained. ′
! In order to adjust the air pressure to the head and throat accurately, it is necessary to devise the nozzle and the surface that the air touches, and Figure 4 shows one example of this, in which a circular dent is made in the head. It is something that

以上述べたように本発明はスピンドルモーターの力を利
用することによって９気の定常流を作りそれを磁気ヘッ
ド周辺の塵埃の吸入、あるいは、ヘッドの押しつけ圧と
して応用するものである＠その結果、塵埃の吸収に於て
はヘッド、及びディスク面の接触にゴミが介在すること
が無くなね、へヴドの密着性が増し念。また、ゴミによ
るディスクの摩耗もなくなり、記録メディアの寿命が向
上した。また、ヘッドに対する空気圧の利用ではへヅド
に対する荷重を常に正しく補正し、へヴドタッチが改良
された。本発明はこのようにヘッド／ディスク間の密着
性を良くすることができ、録再特性の向上、記録密度の
向上に有効である。As described above, the present invention uses the power of the spindle motor to create a steady flow of 9 Qi, which is applied to suck in dust around the magnetic head or as pressure to press the head. When absorbing dust, there is no dust intervening in the contact between the head and the disk surface, which improves the adhesion of the head. Additionally, disk wear due to dust has been eliminated, extending the lifespan of the recording media. In addition, the use of air pressure on the head always correctly corrects the load on the head, improving head touch. As described above, the present invention can improve the adhesion between the head and the disk, and is effective in improving recording/reproducing characteristics and recording density.

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

第１図は従来の空気流を利用した磁気デイスク装置であ
る。 第２図、第３図は本発明による塵埃の吸収を行なうディ
スク装置の例である。 第４図は本発明による空気圧を牙１１用したベッドロー
ディング機構である。 １・・・・・・ブロア ２…・中・スピンドル ３・・・・・・磁気ディスク ４・・・・・・ヘッド ５・・・・・・キャリッジ ６・・・・・・アクチェニーター フ・・・・・・フレーム ８　　・・０　　　カ　ノ（− ９・・・・・・フィルター １０・・・・・・ジャケット １１・・・・・・フロッピーディスク １２・・・・・・ハブ １３・・・・・・スピンドル １４・・・・・・スピンドルモーター １５・・・・・・ベルト １６・・・・・・プーリー １７・・・・・・羽根 １８・・・・・・磁気ヘッド １９・・・・・・フィルター ２０・・・・・・フレーム ２１・・・・・・吸入口 ２２・・・・・・排タロ ２３・・・・・・キャリア ２４・・・・・・ジンバル 以　　上 出Ｕ人　株式会社　諏訪精工舎 り 第１１４ ／４／ 一＝＝三三三＝Ｌｂ 第２図 第３０ ５１５− 第４図FIG. 1 shows a conventional magnetic disk device using airflow. FIGS. 2 and 3 are examples of a disk device that absorbs dust according to the present invention. FIG. 4 shows a bed loading mechanism using pneumatic fangs 11 according to the present invention. 1...Blower 2...Middle Spindle 3...Magnetic disk 4...Head 5...Carriage 6...Accheny Turf ...Frame 8...0 Kano (-9...Filter 10...Jacket 11...Floppy disk 12...Hub 13... ... Spindle 14 ... Spindle motor 15 ... Belt 16 ... Pulley 17 ... Vane 18 ... Magnetic head 19 ... ... Filter 20 ... Frame 21 ... Intake port 22 ... Exhaust valve 23 ... Carrier 24 ... More than gimbal U person Suwa Seikosha Co., Ltd. No. 114 /4/ 1 = = 333 = Lb Figure 2 Figure 30 515- Figure 4

Claims (3)

【特許請求の範囲】[Claims] （１）　　磁気ディスクを回転略せる為のスピンドルモ
ーターの一部に羽根を殿付け、これを核スピンドルモー
ターの駆動と共に回転略せることによって定常的な空気
流を作り、該空気流による吸引力又は、排気力を利用す
る機構を有する磁気ディスク装置。(1) A blade is attached to a part of the spindle motor for rotating the magnetic disk, and this can be rotated along with the drive of the nuclear spindle motor to create a steady air flow, and the suction force or , a magnetic disk device that has a mechanism that utilizes exhaust force. （２）　　磁気ヘッドの近傍に空気流の吸引力を設は計
磁タヘッド直前の塵埃を吸引する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) A magnetic disk drive according to claim 1, characterized in that an airflow suction force is designed in the vicinity of the magnetic head to attract dust immediately in front of the magnetic head. （３）　　磁気ヘッドの直上に空気流の排気口を股は該
排気力によって磁気ヘッドと磁偲メディアを密着させる
ことを特徴とする特許請求の範囲第１項にＦ載の磁気デ
ィスク装置。(3) The magnetic disk device as set forth in claim 1, wherein an air exhaust port is provided directly above the magnetic head, and the exhaust force brings the magnetic head and magnetic media into close contact with each other.
JP17146782A 1982-09-30 1982-09-30 Magnetic disk device Pending JPS5960778A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17146782A JPS5960778A (en) 1982-09-30 1982-09-30 Magnetic disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17146782A JPS5960778A (en) 1982-09-30 1982-09-30 Magnetic disk device

Publications (1)

Publication Number Publication Date
JPS5960778A true JPS5960778A (en) 1984-04-06

Family

ID=15923642

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17146782A Pending JPS5960778A (en) 1982-09-30 1982-09-30 Magnetic disk device

Country Status (1)

Country Link
JP (1) JPS5960778A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0556383A1 (en) * 1991-09-10 1993-08-25 Iomega Corp Head wiper for bernoulli disk drive.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0556383A1 (en) * 1991-09-10 1993-08-25 Iomega Corp Head wiper for bernoulli disk drive.
EP0556383A4 (en) * 1991-09-10 1995-03-08 Iomega Corp

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