JPH03113882A - Magnetic disk device - Google Patents
Magnetic disk deviceInfo
- Publication number
- JPH03113882A JPH03113882A JP25027589A JP25027589A JPH03113882A JP H03113882 A JPH03113882 A JP H03113882A JP 25027589 A JP25027589 A JP 25027589A JP 25027589 A JP25027589 A JP 25027589A JP H03113882 A JPH03113882 A JP H03113882A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic disk
- spindle hub
- spindle
- inserting hole
- center
- 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
Links
- 230000037431 insertion Effects 0.000 claims description 13
- 238000003780 insertion Methods 0.000 claims description 13
- 239000002184 metal Substances 0.000 abstract description 5
- 125000006850 spacer group Chemical group 0.000 abstract description 5
- 239000000428 dust Substances 0.000 abstract description 4
- 239000000843 powder Substances 0.000 abstract description 3
- 239000002966 varnish Substances 0.000 description 3
- 235000012489 doughnuts Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Abstract
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関し、特に磁気ディスク板
を回転機構に保持するスピンドルを改良した磁気ディス
ク装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic disk device, and more particularly to a magnetic disk device with an improved spindle for holding a magnetic disk plate in a rotating mechanism.
（従来の技術）
従来、情報を記録する磁気記録媒体を回転機構上に積層
する磁気ディスク装置は、ドーナツ盤状の磁気ディスク
板の中心に設けたスピンドル挿入孔の内径に対し、これ
を保持して回転させるためのスピンドルハブの外径を２
０〜３０μｍ程度小さくした構造であった。即ち、磁気
ディスク板の回転軸に対する偏心を最大限小さ（するた
めに、磁気ディスク板の中心孔の内径にできるだけ近似
した外径寸法のスピンドルハブを有していた。(Prior Art) Conventionally, in a magnetic disk device in which magnetic recording media for recording information are stacked on a rotating mechanism, the media are held against the inner diameter of a spindle insertion hole provided at the center of a donut-shaped magnetic disk plate. The outer diameter of the spindle hub for rotation is 2
The structure was made smaller by about 0 to 30 μm. That is, in order to minimize the eccentricity of the magnetic disk plate with respect to the rotating shaft, the spindle hub had an outer diameter as close as possible to the inner diameter of the center hole of the magnetic disk plate.
［発明が解決しようとする課題］
しかし、上述した従来の磁気ディスク装置では、磁気デ
ィスク板の組み立て時において、特に多層の磁気ディス
クを有する場合には５そのスピンドルハブの外径に沿っ
て、これをガイドとして上記磁気ディスク板を積層して
いくために、該磁気ディスクと上記スピンドルハブが接
触して摩擦される結果、磁気ディスク装置において最も
忌避されるべき金属粉が発生する欠点があった。[Problems to be Solved by the Invention] However, in the conventional magnetic disk device described above, when assembling the magnetic disk plate, especially when it has a multilayer magnetic disk, 5. Since the magnetic disk plates are stacked using the magnetic disk as a guide, the magnetic disk and the spindle hub come into contact with each other and are rubbed, resulting in generation of metal powder, which should be avoided most in a magnetic disk device.
本発明はかかる事情に鑑みてされたものであって、その
課題は組立時において金属粉等の微小粉塵が発生しない
磁気ディスク装置を提供することである。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a magnetic disk device that does not generate minute dust such as metal powder during assembly.
［課題を解決するための手段］
本発明は上記の課題の解決のため、以下のような構成と
している。即ち、情報を記録する磁気記録媒体である磁
気ディスクをスピンドル上に積層して回転させる磁気デ
ィスク装置において、中心にスピンドルハブの挿入孔を
有する磁気ディスク板と、上記スピンドルハブの挿入孔
の内径より、数ｍｍ程度小さな外径のスピンドルハブと
を有するものである。[Means for Solving the Problems] In order to solve the above problems, the present invention has the following configuration. That is, in a magnetic disk device in which magnetic disks, which are magnetic recording media for recording information, are stacked on a spindle and rotated, there is a magnetic disk plate having a spindle hub insertion hole in the center, and , and a spindle hub with an outer diameter smaller than several millimeters.
［実施例］ 次に、本発明について図面を参照して説明する。[Example] Next, the present invention will be explained with reference to the drawings.
第１図は、磁気ディスク装置の断面図、第２図は、スピ
ンドルハブと磁気ディスクの斜視図である。中心にスピ
ンドル軸５を有するスピンドルハブ２は、磁気ディスク
板１を複数積層して支持固定して回転するものである。FIG. 1 is a sectional view of a magnetic disk device, and FIG. 2 is a perspective view of a spindle hub and a magnetic disk. The spindle hub 2, which has a spindle shaft 5 at the center, rotates by supporting and fixing a plurality of stacked magnetic disk plates 1.
上記磁気ディスク板１には、その中心にスピンドルハブ
挿入孔６が設けられたドーナツ盤状のものである。The magnetic disk plate 1 has a donut shape with a spindle hub insertion hole 6 provided at its center.
また、スピンドルハブ２の外径は、上記スピンドルハブ
挿入孔６の内径が１００ｍｍであるのに対し、９５ｍｍ
としている。また該スピンドルハブ２の下端周縁には、
磁気ディスクｌのストッパー７が形成されている
上記磁気ディスク板ｌのスピンドルハブ挿入孔６に、上
記スピンドルハブ２を挿入した後は、各々の磁気ディス
ク板ｌ、１の間に、上記スピンドルハブ挿入孔６と同一
の内径を有する中心孔が形成されたスペーサリング３を
介在させている。そしてクランブリング４を、スピンド
ルハブ２の上面の周縁部と磁気ディスクｌの端部とに接
触させ、ボルト穴８にボルト９を螺合させてこれを固定
し、該クランブリング４により上記磁気ディスク板ｌ及
びスペーサリング３を押圧して、これらをスピンドルハ
ブ２に固定している。Further, the outer diameter of the spindle hub 2 is 95 mm, while the inner diameter of the spindle hub insertion hole 6 is 100 mm.
It is said that Further, at the lower end periphery of the spindle hub 2,
After the spindle hub 2 is inserted into the spindle hub insertion hole 6 of the magnetic disk plate l in which the stopper 7 of the magnetic disk l is formed, the spindle hub is inserted between each magnetic disk plate l, 1. A spacer ring 3 is interposed in which a center hole having the same inner diameter as the hole 6 is formed. Then, the crumbling ring 4 is brought into contact with the peripheral edge of the upper surface of the spindle hub 2 and the end of the magnetic disk l, and the bolts 9 are screwed into the bolt holes 8 to fix this. The plate 1 and the spacer ring 3 are pressed and fixed to the spindle hub 2.
これらの組み立てを行なうには、先ず中心にスピンドル
ハブ挿入孔６を有する磁気ディスク板１を形成し、上記
スピンドルの中心を検出して、上記スピンドルハブ挿入
孔６に、上記スピンドルハブの表面を接触させずにスピ
ンドル挿入作業を行なう。To assemble these, first, a magnetic disk plate 1 having a spindle hub insertion hole 6 at the center is formed, the center of the spindle is detected, and the surface of the spindle hub is brought into contact with the spindle hub insertion hole 6. Perform spindle insertion work without
この場合のスピンドルの中心検出は、中心位置を記憶さ
せたロボット等を使用して自動挿入を行なうことで、正
確に行なうことができる。また人的作業においても、磁
気ディスク板装着後に治具を用いて調整することも可能
である。In this case, the center of the spindle can be detected accurately by automatically inserting the spindle using a robot or the like that has memorized the center position. In addition, in manual work, it is also possible to make adjustments using a jig after mounting the magnetic disk plate.
［考案の効果コ
以上説明したように本発明は、中心にスピンドルハブの
挿入孔を有する磁気ディスク板と、上記スピンドルハブ
の挿入孔の内径より、数ｍｍ程度小さな外径のスピンド
ルハブとを有し、上記スピンドルの中心を検出して、磁
気ディスクに対し上記スピンドルハブの表面を接触させ
ずにスピンドル挿入作業を行なうから、組立時に金属の
接触による微小塵埃の発生を有効に防止できる効果があ
る。[Effects of the invention] As explained above, the present invention has a magnetic disk plate having a spindle hub insertion hole in the center, and a spindle hub having an outer diameter smaller than the inner diameter of the spindle hub insertion hole by several millimeters. However, since the center of the spindle is detected and the spindle is inserted without touching the surface of the spindle hub to the magnetic disk, it is possible to effectively prevent the generation of minute dust due to metal contact during assembly. .
また組み立て作業を容易に自動化することでき、工程数
が削減できること、及びスピンドルハブの寸法精度を厳
格にする必要がないことから製造コストの低減が実現で
きる。Furthermore, assembly work can be easily automated, the number of steps can be reduced, and manufacturing costs can be reduced because there is no need to ensure strict dimensional accuracy of the spindle hub.
第１図は、本発明の磁気ディスク装置のスピンドル部の
断面図、第２図は従来の磁気ディスク装置のスピンドル
ハブと磁気ディスクの斜視図である。
１：磁気ディスク板 ２ニスピンドルハブ３ニスペ
ーサリング ４：クランブリング５ニスピンドル軸
６：スピンドルハブ挿入孔
７：ストッパーFIG. 1 is a sectional view of a spindle portion of a magnetic disk device of the present invention, and FIG. 2 is a perspective view of a spindle hub and a magnetic disk of a conventional magnetic disk device. 1: Magnetic disk plate 2 Varnish spindle hub 3 Varnish spacer ring 4: Crumb ring 5 Varnish spindle shaft 6: Spindle hub insertion hole 7: Stopper
Claims (1)
ンドル上に積層して回転させる磁気ディスク装置におい
て、中心にスピンドルハブの挿入孔を有する磁気ディス
ク板と、上記スピンドルハブの挿入孔の内径より、数ｍ
ｍ程度小さな外径のスピンドルハブとを有することを特
徴とする磁気ディスク装置。In a magnetic disk device in which magnetic disks, which are magnetic recording media for recording information, are stacked on a spindle and rotated, a magnetic disk plate has a spindle hub insertion hole in the center, and a number is determined from the inner diameter of the spindle hub insertion hole. m
1. A magnetic disk device comprising a spindle hub having an outer diameter as small as m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25027589A JPH03113882A (en) | 1989-09-26 | 1989-09-26 | Magnetic disk device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25027589A JPH03113882A (en) | 1989-09-26 | 1989-09-26 | Magnetic disk device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03113882A true JPH03113882A (en) | 1991-05-15 |
Family
ID=17205475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25027589A Pending JPH03113882A (en) | 1989-09-26 | 1989-09-26 | Magnetic disk device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03113882A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5973879A (en) * | 1997-09-16 | 1999-10-26 | Seagate Technology, Inc. | Radially loaded disc mounting system for a disc drive |
-
1989
- 1989-09-26 JP JP25027589A patent/JPH03113882A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5973879A (en) * | 1997-09-16 | 1999-10-26 | Seagate Technology, Inc. | Radially loaded disc mounting system for a disc drive |
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