JPH0383269A - Magnetic disk device - Google Patents
Magnetic disk deviceInfo
- Publication number
- JPH0383269A JPH0383269A JP1218151A JP21815189A JPH0383269A JP H0383269 A JPH0383269 A JP H0383269A JP 1218151 A JP1218151 A JP 1218151A JP 21815189 A JP21815189 A JP 21815189A JP H0383269 A JPH0383269 A JP H0383269A
- Authority
- JP
- Japan
- Prior art keywords
- hub
- magnetic disk
- bearing
- pedestal
- receiving base
- 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
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 25
- 239000007769 metal material Substances 0.000 claims description 4
- 230000005389 magnetism Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- -1 for example Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、ワードプロセッサなどのＯＡ機器に使用され
る磁気ディスク装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a magnetic disk device used in office automation equipment such as a word processor.
従来の技術
以下、第２図を参照しながら、従来の磁気ディスク装置
について説明する。BACKGROUND OF THE INVENTION A conventional magnetic disk device will be described below with reference to FIG.
第２図において、２１はシャーシ２２に装着された軸受
２３を介して回転自在に設けられた回転軸体で。In FIG. 2, reference numeral 21 denotes a rotating shaft body rotatably provided via a bearing 23 mounted on a chassis 22.
その上端部には磁気ディスク３１のハブ部（金属製のも
の）３２を支持するハブ受台２４が取付けられるととも
に、下端部にはプーリ２５が取付けられ、またこのプー
リ２５はベルト２６を介して回転駆動用モータ２７に連
動連結されている。さらに、上記ハブ受台２４の表面は
磁化されており、磁気ディスク３１のハブ部３２を吸引
して磁気ディスク３１を回転駆動用モータ２７と同期し
て回転させるようにしている。A hub pedestal 24 that supports a hub part (metallic one) 32 of a magnetic disk 31 is attached to its upper end, and a pulley 25 is attached to its lower end. It is interlocked and connected to a rotational drive motor 27. Further, the surface of the hub pedestal 24 is magnetized, and attracts the hub portion 32 of the magnetic disk 31 to rotate the magnetic disk 31 in synchronization with the rotary drive motor 27.
なお、上記軸受２３の上端面とハブ受台２４とは密着さ
れているが、軸受２３の下端面とプーリ２５とのｆｆＪ
ｆには隙間ａが設けられている。Note that although the upper end surface of the bearing 23 and the hub pedestal 24 are in close contact, the ffJ between the lower end surface of the bearing 23 and the pulley 25 is
A gap a is provided at f.
発明が解決しようとする課題
ところで、最近、磁気ディスク装置の薄型化が要望され
ており、上記従来の構成において、：４型化を図ろうと
すると、どうしても軸受２３を短くする必要が生じる。PROBLEMS TO BE SOLVED BY THE INVENTION Recently, there has been a demand for thinner magnetic disk drives, and if the conventional configuration described above is to be made into a 4-type magnetic disk drive, it becomes necessary to shorten the bearing 23.
しかし、軸受２３を短くするということは１回転軸体２
１と軸受２３とのクリアランスにより発生する回転軸体
２１の振れを大きくすることになり、磁気ディスク装置
の特性を著しく悪化させるという問題があった。また、
上記従来の構成によると、ハブ受台２４を軸受２３と常
に密着して同転させる必要があるが、軸受２３とプーリ
２５との間には若干の隙間ａが設けられているので、振
動や衝撃によりその隙間用だけハブ受台２４が軸受２３
から浮き上がってしまうことが考えられる。このため、
やはり磁気ディスク装置の特性を著しく悪化させるとい
う問題が発生する。さらに、上記従来の構成によると、
軸受２３とプーリ２５との隙間ａの管理も非常に精度を
必要とする問題があった。However, shortening the bearing 23 means that the shaft 2
1 and the bearing 23, the vibration of the rotating shaft body 21 is increased, resulting in a problem that the characteristics of the magnetic disk device are significantly deteriorated. Also,
According to the above-mentioned conventional configuration, it is necessary for the hub pedestal 24 to always rotate in close contact with the bearing 23, but since a slight gap a is provided between the bearing 23 and the pulley 25, vibrations can be prevented. Due to the impact, the hub pedestal 24 is moved to the bearing 23 only for that gap.
It is possible that it will float away from the surface. For this reason,
Again, a problem arises in that the characteristics of the magnetic disk device are significantly deteriorated. Furthermore, according to the above conventional configuration,
Management of the gap a between the bearing 23 and the pulley 25 also had the problem of requiring great precision.
そこで、本発明は上記課題を解消し得る磁気ディスク装
置を提供することを目的とする。Therefore, an object of the present invention is to provide a magnetic disk device that can solve the above problems.
課題を解決するための手段
上記課題を解決するため、本発明の磁気ディスク装置は
、シャーシに軸受を介して回転軸体を鉛直軸心回りで回
転自在に設け、この回転軸体の上部に、磁気ディスクの
ハブ部を載置するための載置部を有するハブ受台を固定
するとともに、このハブ受台に、ベルトを介して回転駆
動用モータに連動連結されるプーリ部を一体的に設けた
ものである。Means for Solving the Problems In order to solve the above problems, the magnetic disk drive of the present invention includes a rotating shaft rotatably provided on the chassis around a vertical axis via a bearing, and a rotary shaft mounted on the upper part of the rotating shaft. A hub pedestal having a placing part for placing a hub part of a magnetic disk is fixed, and a pulley part which is interlocked and connected to a rotational drive motor via a belt is integrally provided on this hub pedestal. It is something that
また、上記構成において、磁気ディスクのハブ部および
軸受を金属性材料で構成するとともに。Further, in the above structure, the hub portion and the bearing of the magnetic disk are made of a metallic material.
ハブ受台の載置部上面およびハブ受台の軸受上端面との
接触側下面を磁化させたものである。The upper surface of the mounting portion of the hub pedestal and the lower surface of the hub pedestal on the side that is in contact with the upper end surface of the bearing are magnetized.
作用
Ｊ二記の構成によると、ハブ受台に回転駆動用のプーリ
部を一体的に設けたので、従来のように回転軸体の上下
部にハブ受台とプーリとを固定する場合に比べて、軸受
部分の薄型化５すなわち磁気ディスク装置の薄型化を図
ることができる。また、ハブ受台の載置部の他に、ハブ
受台の下面も磁化させることにより、ハブ受台の浮き七
がりを防止することができる。さらに、従来のような、
軸受とプーリとの隙間の管理を必要としない。According to the configuration described in J.2, the pulley part for rotational driving is integrally provided on the hub pedestal, so compared to the conventional case where the hub pedestal and the pulley are fixed to the upper and lower parts of the rotating shaft. As a result, the bearing portion can be made thinner 5, that is, the magnetic disk device can be made thinner. Further, by magnetizing the lower surface of the hub cradle in addition to the hub cradle placement part, it is possible to prevent the hub cradle from floating. Furthermore, as in the past,
There is no need to manage the gap between the bearing and the pulley.
実施例 以下、本発明の一実施例を第１図に基づき説明する。Example An embodiment of the present invention will be described below with reference to FIG.
第１図において、１はシャーシ２の所定位置にＬｌ：方
向で装着された金属性材料（たとえば鉄系材料）からな
る軸受で、この軸受１には回転軸体３が鉛直軸心回りで
回転自在に挿入されている。In FIG. 1, reference numeral 1 denotes a bearing made of a metallic material (e.g., iron-based material) mounted at a predetermined position on a chassis 2 in the Ll: direction. It can be inserted freely.
上記回転軸体３の上端部には、磁気ディスク１１のハブ
部（同じく金属性材料たとえばステンレスで構成されて
いる）１２を載置可能な載置部４ａが形成された磁化材
料（たとえばプラスチックマグネット）からなるハブ受
台４が固定されるとともに、このハブ受台４の下方部に
は、ベルト５を介して回転駆動用モータ６に連動連結さ
れたプーリ部４ｂが一体的に形成されている。したがっ
て、磁気ディスクｔｉのハブ部１２は、ハブ受台４の載
置部４ｄに磁力により吸引され、またハブ受台４の下面
４ｃも磁力により軸受ｌの上端面に吸引されていること
になる。A magnetized material (for example, a plastic magnet) is formed on the upper end of the rotating shaft body 3 with a mounting section 4a on which a hub section 12 of a magnetic disk 11 (also made of a metallic material, for example, stainless steel) can be mounted. ) is fixed thereto, and a pulley portion 4b that is interlocked and connected to a rotational drive motor 6 via a belt 5 is integrally formed in the lower part of the hub pedestal 4. . Therefore, the hub portion 12 of the magnetic disk ti is magnetically attracted to the mounting portion 4d of the hub pedestal 4, and the lower surface 4c of the hub pedestal 4 is also magnetically attracted to the upper end surface of the bearing l. .
上記構成において、回転駆動用モータ６が駆動されると
、ベルト５およびプーリ部４ｂを介してハブ受台４が直
接回転される。このとき、磁気ディスク１１はハブ受台
４の載置部４ａに吸引されているため、回転駆動用モー
タ６に同期して回転されており、またハブ受台４も軸受
１側に吸引されているため、その浮き上がりが防止され
ている。In the above configuration, when the rotation drive motor 6 is driven, the hub pedestal 4 is directly rotated via the belt 5 and the pulley portion 4b. At this time, since the magnetic disk 11 is attracted to the mounting portion 4a of the hub pedestal 4, it is rotated in synchronization with the rotary drive motor 6, and the hub pedestal 4 is also attracted to the bearing 1 side. This prevents it from rising.
なお、ハブ受台４の下面と軸受１との接触面の摺動抵抗
は小さく、問題はない。Note that the sliding resistance of the contact surface between the lower surface of the hub pedestal 4 and the bearing 1 is small, and there is no problem.
発明の効果
以ヒのように、本発明の構成によれば、ハブ受台に回転
駆動用のプーリ部を一体的に設けたので。As can be seen from the effects of the invention, according to the configuration of the present invention, the pulley portion for rotational driving is integrally provided on the hub pedestal.
従来のように回転軸体の上下部にハブ受台とプーリとを
固定する場合に比べて、軸受部分の薄型化。The bearing part is thinner than the conventional case where the hub pedestal and pulley are fixed to the upper and lower parts of the rotating shaft.
すなわち磁気ディスク装置の薄型化を図ることができる
。また、ハブ受台の載置部の他に、ハブ受台の下面も磁
化させることにより、ハブ受台の浮きＬがりを防止する
ことができ、したがってＪ＆ｔｊ＋や？ｊｒｔｌに対す
る特性を向上させることができる。In other words, the magnetic disk device can be made thinner. Furthermore, by magnetizing the lower surface of the hub cradle in addition to the hub cradle placement part, it is possible to prevent the hub cradle from floating L. Therefore, J&tj+? jrtl characteristics can be improved.
さらに、従来のような、軸受とプーリとの隙間の管理を
必要としない。Furthermore, there is no need to manage the gap between the bearing and the pulley as in the conventional case.
第１図は本発明の一実施例に係る磁気ディスク装置の要
部断面図、第２図は従来例の一部切欠斜視図である。
１・・・軸受、２・・・シャーシ、３・・・回転軸体、
４・・・ハブ受台、４ａ・・・載置部、４ｂ・・・プー
リ部、４ｃ・・・下面、５・・・ベルト、６・・・回転
駆動用モータ、１１・・磁気ディスク、１２・・・ハブ
部。FIG. 1 is a sectional view of a main part of a magnetic disk device according to an embodiment of the present invention, and FIG. 2 is a partially cutaway perspective view of a conventional example. 1...Bearing, 2...Chassis, 3...Rotating shaft body,
4... Hub pedestal, 4a... Placement part, 4b... Pulley part, 4c... Lower surface, 5... Belt, 6... Rotation drive motor, 11... Magnetic disk, 12...Hub part.
Claims (1)
回転自在に設け、この回転軸体の上部に、磁気ディスク
のハブ部を載置するための載置部を有するハブ受台を固
定するとともに、このハブ受台に、ベルトを介して回転
駆動用モータに連動連結されるプーリ部を一体的に設け
た磁気ディスク装置。 ２、磁気ディスクのハブ部および軸受を金属性材料で構
成するとともに、ハブ受台の載置部上面およびハブ受台
の軸受上端面との接触側下面を磁化させた請求項１に記
載の磁気ディスク装置。[Scope of Claims] 1. A rotating shaft is provided in the chassis via a bearing so as to be rotatable around a vertical axis, and a mounting section for placing a hub portion of a magnetic disk on the upper part of the rotating shaft. What is claimed is: 1. A magnetic disk drive in which a hub pedestal is fixed, and a pulley portion is integrally provided on the hub pedestal, the pulley portion being interlocked and connected to a rotational drive motor via a belt. 2. The magnetic disk according to claim 1, wherein the hub portion and the bearing of the magnetic disk are made of a metallic material, and the upper surface of the mounting portion of the hub pedestal and the lower surface of the hub pedestal that is in contact with the upper end surface of the bearing are magnetized. disk device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1218151A JPH0383269A (en) | 1989-08-24 | 1989-08-24 | Magnetic disk device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1218151A JPH0383269A (en) | 1989-08-24 | 1989-08-24 | Magnetic disk device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0383269A true JPH0383269A (en) | 1991-04-09 |
Family
ID=16715444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1218151A Pending JPH0383269A (en) | 1989-08-24 | 1989-08-24 | Magnetic disk device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0383269A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5222918A (en) * | 1990-11-22 | 1993-06-29 | Teac Corporation | Pulley of a belt drive mechanism |
-
1989
- 1989-08-24 JP JP1218151A patent/JPH0383269A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5222918A (en) * | 1990-11-22 | 1993-06-29 | Teac Corporation | Pulley of a belt drive mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4620252A (en) | Symmetrical coil actuator for a magnetic disk drive | |
| JPH08249846A (en) | Rotary actuator for disk device | |
| JPH0383269A (en) | Magnetic disk device | |
| JPH04132664U (en) | Head arm mechanism of hard disk drive | |
| KR20020027367A (en) | Improved magnetic latching for a disc drive | |
| JPH04178161A (en) | Motor | |
| JPS5959059A (en) | Flat stationary armature implanted with cylindrical bearing | |
| JP2549357Y2 (en) | Fixed yoke type flat brushless vibration motor | |
| JP2000092804A (en) | Extremely small flat coreless vibrating motor with enlarged vibration | |
| JPH05159450A (en) | Recording disk driving device | |
| JPH0312042Y2 (en) | ||
| KR200143362Y1 (en) | Motor for driving turn table | |
| JPS63161856A (en) | Spindle motor for disk | |
| JP2836280B2 (en) | Rotating head cylinder device | |
| JP2001045699A (en) | Motor and electronic apparatus using the motor | |
| KR20020006283A (en) | Vibration motor | |
| JP2664237B2 (en) | Disk drive | |
| JPS61160871A (en) | Revolving device of magnetic disk | |
| JPH05228760A (en) | Multi-spindle table | |
| JPH06245420A (en) | Rotor for spindle motor | |
| JPH0250348A (en) | Recording or reproducing device | |
| JPH03260964A (en) | Head actuator for magnetic disk device | |
| JPH05114102A (en) | Disk fixing device | |
| KR920008696A (en) | Thin Capstan Motor of Video Cassette Recorder | |
| JPH0417161A (en) | Magnetic disk device |