JPH0346912B2 - - Google Patents
Info
- Publication number
- JPH0346912B2 JPH0346912B2 JP58186132A JP18613283A JPH0346912B2 JP H0346912 B2 JPH0346912 B2 JP H0346912B2 JP 58186132 A JP58186132 A JP 58186132A JP 18613283 A JP18613283 A JP 18613283A JP H0346912 B2 JPH0346912 B2 JP H0346912B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic disk
- air
- housing
- base
- fixed
- 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.)
- Expired - Lifetime
Links
- 239000000428 dust Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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
- G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
Landscapes
- Supporting Of Heads In Record-Carrier Devices (AREA)
Description
【発明の詳細な説明】
(A) 発明の技術分野
本発明は磁気デイスク装置のヘツドクラツシユ
防止機構に係り、特に磁気デイスク筐体内の塵埃
除去速度を早め、ヘツドクラツシユを防止できる
磁気デイスク装置に関するものである。[Detailed Description of the Invention] (A) Technical Field of the Invention The present invention relates to a head crash prevention mechanism for a magnetic disk device, and particularly relates to a magnetic disk device that can speed up the removal of dust within a magnetic disk housing and prevent head crash. .
(B) 技術の背景
磁気デイスク装置は、密閉した筐体内に磁気デ
イスク媒体、及びその駆動機構そして媒体へ情報
の読み書きを行う磁気ヘツド及びこの磁気ヘツド
の媒体への位置付けを行う磁気ヘツド駆動機構等
が内臓され一体構造となつたデイスクエンクロー
ジヤ（以下DEと称す）を備えた型式のものが主
流となつている。DE内には静浄な空気のみが存
在していることが理想であるが、組立工程中に微
少な塵埃が入り込んだり、ヘツドクラツユ等によ
り塵埃が発生する。この塵埃はヘツドクラツシユ
の原因となるため除去しなければならない。(B) Background of the Technology A magnetic disk device contains a magnetic disk medium in a sealed housing, its drive mechanism, a magnetic head that reads and writes information to the medium, and a magnetic head drive mechanism that positions the magnetic head with respect to the medium. The mainstream model is a disk enclosure (hereinafter referred to as DE) that has a built-in integrated structure. Ideally, only still air should exist inside the DE, but dust may be generated during the assembly process or due to head cracks. This dust causes head crushing and must be removed.
(C) 従来技術と問題点
従来、DE内の塵埃を除去するため中央吸込み
方式と呼ばれるものが採用されている。この中央
吸込み方式とは媒体が高速で回転すると中心部が
他の部分に比べて負圧となることを利用して、中
央部に空気が流れ込むような空気循環経路を設け
るようにしたものである。第１図は従来のDE内
の構造を示すものであつて、１はDEのカバー、
２はDEのベース、３，３′は固定円板、４はスピ
ンドル、５は媒体、６は磁気ヘツドが設置されて
いるヘツドアーム、７はヘツドアームを駆動する
ことにより磁気ヘツドの媒体への位置付けを行う
磁気ヘツド駆動機構、８はフイルタ、９はカンカ
クリング、１０はスピンドルのハウジングであ
る。ハウジング１０はスピンドルと一体構成され
ており、ハウジング１０に媒体５が取り付けら
れ、スピンドル４の回転によつて媒体５も回転す
る構造となつている。スピンドル４のハウジング
１０はベース２との間にすき間を有している。媒
体５の回転によつて中央部、即ちハウジング１０
内部のすき間は負圧となる。これは媒体５の回転
による遠心力で空気がインナ部よりアウター部へ
と流れるからである。ここで３，３′は固定円板
であつて、それぞれDE筐体のカーバー１とベー
ス２とに媒体５と平行となるように取り付けられ
ている。この固定円板３，３′は各媒体の空気に
よる摩擦を一定にするために設けられている。つ
まり図中で最上部と最下部の媒体は内部の媒体に
比べ多く空気と触れ、その摩擦により内部の媒体
との温度差が生じないように、それぞれの媒体が
触れる空気の量を一定にするためのものである。
従つて媒体５のアウター側へ流れた空気はハウジ
ング１０内部のすき間が負圧となつているためこ
こへ流れ込む。そして流れ込んだ空気はフイルタ
８によつて塵埃が除去されて再びハウジング１０
の外部へ排出される。この場合遠心力によりアウ
ター側へ流れた空気は固定円板３の下部を通つて
ハウジング１０内部へ流れ込む。この様子をさら
に詳しく説明するために第２図を参照する。第２
図は固定円板３の下部よりハウジング１０内部へ
空気が流れこむ部分分を拡大したものである。ハ
ウジング１０には斜線部で示す排気穴１１が設け
られている。そしてカンカクリング９によつて各
媒体間を所定間隔に保ちつつ積層し媒体５を固定
している。このカンカクリング９には排気穴９′
が設けられておりハウジング１０内部と連通して
いる。固定円板３の下部より流れてきた空気はハ
ウジング１０の内部に吸入されフイルタ８を通つ
てハウジング１０の排気穴１１カンカクリング９
の排気穴９′を通り、排出される。フイルタ８は
ハウジング１０の内側に排気穴１１に対して貼り
付けてある。以上のように空気循環路が形成され
るがこの場合ハンジング１０と固定円板３との間
にすき間があるため矢印Ａで示すように空気がも
れてしまう。従つてフイルタ８による塵埃除去効
率が低下してしまうという欠点があつた。(C) Conventional technology and problems Conventionally, a so-called central suction method has been used to remove dust within the DE. This central suction method takes advantage of the fact that when the medium rotates at high speed, the center has a negative pressure compared to other parts, and creates an air circulation path that allows air to flow into the center. . Figure 1 shows the structure of a conventional DE, where 1 is the DE cover;
2 is the base of the DE, 3 and 3' are fixed disks, 4 is the spindle, 5 is the medium, 6 is the head arm on which the magnetic head is installed, and 7 is a device that positions the magnetic head on the medium by driving the head arm. 8 is a filter, 9 is a ring ring, and 10 is a housing for the spindle. The housing 10 is integrally constructed with the spindle, and the medium 5 is attached to the housing 10, so that the medium 5 also rotates as the spindle 4 rotates. A housing 10 of the spindle 4 has a gap between it and the base 2. Due to the rotation of the medium 5, the central part, that is, the housing 10
The internal gap becomes negative pressure. This is because air flows from the inner part to the outer part due to the centrifugal force caused by the rotation of the medium 5. Here, reference numerals 3 and 3' denote fixed disks, which are respectively attached to the cover 1 and base 2 of the DE housing so as to be parallel to the medium 5. These fixed disks 3, 3' are provided to keep the friction of each medium constant due to air. In other words, the media at the top and bottom of the diagram come into contact with air more than the media inside, and the amount of air that each media comes into contact with is constant so that the friction does not create a temperature difference with the media inside. It is for.
Therefore, the air flowing toward the outer side of the medium 5 flows into the gap inside the housing 10 because the gap is under negative pressure. Dust is removed from the inflowing air by a filter 8, and the air is returned to the housing 10.
is discharged to the outside. In this case, the air flowing toward the outer side due to centrifugal force flows into the housing 10 through the lower part of the fixed disk 3. Refer to FIG. 2 to explain this situation in more detail. Second
The figure is an enlarged view of a portion where air flows into the housing 10 from the lower part of the fixed disk 3. The housing 10 is provided with an exhaust hole 11 shown as a shaded area. Then, the media 5 are stacked and fixed by interlocking rings 9 while maintaining a predetermined interval between the media. This ring 9 has an exhaust hole 9'.
is provided and communicates with the inside of the housing 10. Air flowing from the lower part of the fixed disk 3 is sucked into the housing 10 and passes through the filter 8 to the exhaust hole 11 of the housing 10 and the ring 9.
It passes through the exhaust hole 9' and is discharged. The filter 8 is attached to the inside of the housing 10 against the exhaust hole 11. Although the air circulation path is formed as described above, in this case, since there is a gap between the hanging 10 and the fixed disk 3, air leaks as shown by arrow A. Therefore, there is a drawback that the efficiency of removing dust by the filter 8 is reduced.
(D) 発明の目的
本発明は上記従来の欠点に鑑み、DE内の空気
循環路から空気がもれることのないように、固定
円板を改良し、循環した空気がすべてフイルタ８
を通過するようにして塵埃除去効率を向上できる
ヘツドクラツシユ防止機構を提供することにあ
る。(D) Purpose of the Invention In view of the above-mentioned conventional drawbacks, the present invention improves the fixed disk so that air does not leak from the air circulation path in the DE, and all the circulated air is passed through the filter 8.
An object of the present invention is to provide a head crush prevention mechanism that can improve dust removal efficiency by allowing dust to pass through the head.
(E) 発明の構成
そしてこの発明の目的はベースと、複数の磁気
デイスク媒体を所定の間隔で積層して固定され、
前記ベースと対向する面が開口され、前記ベース
に固定された円筒状ハウジングと、前記円筒状ハ
ウジングに設けされた前記開口部と連通し、前記
円筒状ハウジング内面より磁気デイスク媒体間に
空気を排出する排気用穴を有し、前記磁気デイス
クの回転により生ずる遠心力を利用して、前記開
口より空気を取り入れ、前記磁気デイスク媒体間
の前記排気用穴に空気を排気させることにより空
気を循環させるように構成した磁気デイスク装置
であつて、前記開口部側の前記積層された磁気デ
イスク媒体の最外側と、前記ベースの間に少なく
とも内周側が前記ハウジングと空気膜が形成され
る程度の微小間隔で重なり合うように配置された
固定円板とを備え、前記ベースと前記固定円板と
で設けられた空間を介して、前記磁気デイスク外
周側より、前記開口部に空気の循環路を形成する
ようにしたことを特徴とする磁気デイスク装置を
提供することによつて達成される。(E) Structure of the Invention The object of the present invention is to provide a base and a plurality of magnetic disk media stacked and fixed at predetermined intervals,
A cylindrical housing whose surface facing the base is open and communicates with the opening provided in the cylindrical housing and the cylindrical housing fixed to the base to exhaust air between the magnetic disk media from the inner surface of the cylindrical housing. air is circulated by taking in air through the opening and exhausting the air to the exhaust hole between the magnetic disk media by utilizing the centrifugal force generated by the rotation of the magnetic disk. In the magnetic disk device configured as follows, there is a minute interval between the outermost side of the stacked magnetic disk media on the opening side and the base, at least on the inner peripheral side, such that an air film is formed with the housing. fixed disks arranged so as to overlap each other, and forming an air circulation path from the outer circumferential side of the magnetic disk to the opening through a space provided by the base and the fixed disk. This is achieved by providing a magnetic disk device characterized by the following.
(F) 発明の実施例
以下本発明の一実施例を図面によつて詳細に説
明する。第３図は本発明の一実施例を説明するた
めの図である。その構成は第２図とほぼ同じであ
り、同一部分は同一番号で示してある。第２図と
異なるのは固定円板３の構成である。(F) Embodiment of the Invention An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 3 is a diagram for explaining one embodiment of the present invention. Its structure is almost the same as that in FIG. 2, and the same parts are indicated by the same numbers. What differs from FIG. 2 is the configuration of the fixed disk 3.
固定円板３はハウジング１０がベース２と対向
する面Ｙまで突出し、対向面Ｙの少なくとも一部
をベース２に対して覆つている。対向面Ｙと固定
円板３とは間隔Ｘを有する。これはハウジング１
０が回転するのに対し、固定円板３はベースに対
して固定されているため、固定円板３はハウジン
グ１０の対向面Ｙと接合できないためである。し
かし間隔Ｘは微少距離であり（約0.1〜0.4mm程度
が適当である）そして前述したように媒体５が回
転してハウジング１０内が負圧になり、空気循環
路が形成されると、間隔Ｘには空気膜が発生し、
空気は間隔Ｘよりもれることなく、フイルタ８を
介して排気穴１１より排出される。したがつて固
定円板３を対向面Ｙと接合しなくても空気もれを
起こすことがない。 The fixed disk 3 protrudes to a surface Y where the housing 10 faces the base 2, and covers at least a portion of the facing surface Y with respect to the base 2. The opposing surface Y and the fixed disk 3 have a distance X between them. This is housing 1
0 rotates, whereas the fixed disk 3 is fixed to the base, so the fixed disk 3 cannot be joined to the facing surface Y of the housing 10. However, the interval X is a minute distance (approximately 0.1 to 0.4 mm is appropriate), and as mentioned above, when the medium 5 rotates and the inside of the housing 10 becomes negative pressure, and an air circulation path is formed, the interval An air film is generated at X,
Air is discharged from the exhaust hole 11 via the filter 8 without leaking beyond the interval X. Therefore, even if the fixed disk 3 is not joined to the opposing surface Y, air leakage will not occur.
(G) 発明の効果
以上詳細に説明したように、本発明によればス
ピンドルハウジングのベース対向面まで固定円板
を進出させることによつて、空気もれのない空気
循環路を形成し、循環する空気がすべてフイルタ
を通過するため、DE内の塵埃を効率良くフイル
タで採取することができる。(G) Effects of the Invention As explained in detail above, according to the present invention, by advancing the fixed disk to the surface facing the base of the spindle housing, an air circulation path without air leakage is formed and the circulation is improved. Since all the air that enters the DE passes through the filter, the dust inside the DE can be efficiently collected by the filter.
第１図は従来のデイスクエンクロージヤ断面
図、第２図、第３図はデイスクエンクロージヤ内
のスピンドルハウジング下部の空気循環路の拡大
図である。
図において、２はベース、３は固定円板、５は
媒体、８はフイルタ、１０はスピンドルハウジン
グ、１１は排気穴である。
FIG. 1 is a sectional view of a conventional disk enclosure, and FIGS. 2 and 3 are enlarged views of an air circulation path in the lower part of a spindle housing in the disk enclosure. In the figure, 2 is a base, 3 is a fixed disk, 5 is a medium, 8 is a filter, 10 is a spindle housing, and 11 is an exhaust hole.
Claims (1)
て固定され、前記ベースと対向する面が開口さ
れ、前記ベースに固定された円筒状ハウジング
と、 前記円筒状ハウジングに設けられた前記開口部
と連通し、前記円筒状ハウジング内面より磁気デ
イスク媒体間に空気を排出する排気用穴を有し、 前記磁気デイスクの回転により生ずる遠心力を
利用して、前記開口より空気を取り入れ、前記磁
気デイスク媒体間の前記排気用穴に空気を排気さ
せることにより空気を循環させるように構成した
磁気デイスク装置であつて、 前記開口部側の前記積層された磁気デイスク媒
体の最外側と、前記ベースの間に少なくとも内周
側が前記ハウジングと空気膜が形成される程度の
微小間隔で重なり合うように配置された固定円板
とを備え、 前記ベースと前記固定円板とで設けられた空間
を介して、前記磁気デイスク外周側より、前記開
口部に空気の循環路を形成するようにしたことを
特徴とする磁気デイスク装置。[Scope of Claims] 1: a base; a cylindrical housing in which a plurality of magnetic disk media are stacked and fixed at predetermined intervals; a cylindrical housing having an open surface facing the base; and a cylindrical housing fixed to the base; It has an exhaust hole that communicates with the opening provided in the housing and exhausts air between the magnetic disk media from the inner surface of the cylindrical housing, and uses centrifugal force generated by rotation of the magnetic disk to close the opening. A magnetic disk device configured to circulate air by taking in more air and exhausting the air to the exhaust holes between the magnetic disk media, the magnetic disk device comprising: and a fixed disk arranged between the outermost side and the base so that at least the inner circumferential side thereof overlaps the housing with a minute interval such that an air film is formed, the base and the fixed disk being provided. A magnetic disk device, wherein an air circulation path is formed in the opening from the outer circumferential side of the magnetic disk through a space formed by the magnetic disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18613283A JPS6079575A (en) | 1983-10-05 | 1983-10-05 | Magnetic disc device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18613283A JPS6079575A (en) | 1983-10-05 | 1983-10-05 | Magnetic disc device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6079575A JPS6079575A (en) | 1985-05-07 |
| JPH0346912B2 true JPH0346912B2 (en) | 1991-07-17 |
Family
ID=16182926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18613283A Granted JPS6079575A (en) | 1983-10-05 | 1983-10-05 | Magnetic disc device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6079575A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210128100A (en) * | 2020-04-16 | 2021-10-26 | (주)디피엔지니어링 | Underground electric power cable pulling apparatus integrated tractor with winding device for underground electric power cable |
| KR20210128098A (en) * | 2020-04-16 | 2021-10-26 | (주)디피엔지니어링 | Underground electric power cable pulling apparatus intergrated tractor with guide device for pulling wire |
| KR20210128093A (en) * | 2020-04-16 | 2021-10-26 | (주)디피엔지니어링 | Underground electric power cable pulling apparatus integrated tractor |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61269287A (en) * | 1985-05-24 | 1986-11-28 | Fujitsu Ltd | Magnetic disk device |
| DE3673011D1 (en) * | 1986-05-08 | 1990-08-30 | Ibm | DISK STORAGE WITH AIR FILTRATION SYSTEM. |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54126613U (en) * | 1978-02-24 | 1979-09-04 |
-
1983
- 1983-10-05 JP JP18613283A patent/JPS6079575A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210128100A (en) * | 2020-04-16 | 2021-10-26 | (주)디피엔지니어링 | Underground electric power cable pulling apparatus integrated tractor with winding device for underground electric power cable |
| KR20210128098A (en) * | 2020-04-16 | 2021-10-26 | (주)디피엔지니어링 | Underground electric power cable pulling apparatus intergrated tractor with guide device for pulling wire |
| KR20210128093A (en) * | 2020-04-16 | 2021-10-26 | (주)디피엔지니어링 | Underground electric power cable pulling apparatus integrated tractor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6079575A (en) | 1985-05-07 |
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