JPS637970Y2 - - Google Patents
Info
- Publication number
- JPS637970Y2 JPS637970Y2 JP6136882U JP6136882U JPS637970Y2 JP S637970 Y2 JPS637970 Y2 JP S637970Y2 JP 6136882 U JP6136882 U JP 6136882U JP 6136882 U JP6136882 U JP 6136882U JP S637970 Y2 JPS637970 Y2 JP S637970Y2
- Authority
- JP
- Japan
- Prior art keywords
- hub
- rotor
- rib
- spindle mechanism
- circumferential surface
- 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
Links
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 101000606504 Drosophila melanogaster Tyrosine-protein kinase-like otk Proteins 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
Landscapes
- Rotational Drive Of Disk (AREA)
Description
【考案の詳細な説明】
(a) 考案の技術分野
本考案は円板状の媒体に磁気ヘツドによつて記
録再生が行なわれる磁気デイスク装置における特
に、媒体を回転させるスピンドル機構に関する。[Detailed Description of the Invention] (a) Technical Field of the Invention The present invention relates in particular to a spindle mechanism for rotating a disk-shaped medium in a magnetic disk device in which recording and reproduction are performed by a magnetic head.
(b) 従来技術と問題点
磁気デイスク装置は円板状の媒体をスピンドル
機構によつて回転させ、磁気ヘツドが設けられた
スイングアームを有するアクチユエータ機構の回
動によつて磁気ヘツドは媒体の所定のトラツクを
選択して記録再生を行なうように構成されてい
る。(b) Prior Art and Problems In a magnetic disk device, a disk-shaped medium is rotated by a spindle mechanism, and the magnetic head is moved to a predetermined position of the medium by rotation of an actuator mechanism having a swing arm provided with a magnetic head. The track is selected for recording and playback.
このような磁気デイスク装置は第１図に示すよ
うに構成されている。第１図は従来の磁気デイス
ク装置の概略を示すａは側面図、ｂはＢ−B′の
断面図である。 Such a magnetic disk device is constructed as shown in FIG. FIG. 1 schematically shows a conventional magnetic disk device, with a being a side view and b being a sectional view taken along line B-B'.
スペーサ５によつて所定間隔に積層された複数
の媒体４はフレーム１に固着されたスピンドル機
構１１に装着され、矢印Ａに示す回転が行なわれ
る。これに対してフレーム１に固着されたアクチ
ユエータ機構９のスイングアーム９Ａの先端部に
磁気ヘツドを固着し、スイングアーム９Ａを回動
させることで磁気ヘツドによる記録再生が行なわ
れる。このスピンドル機構１１はフレーム１に固
着されたステータ２と、このステータ２よりベア
リング３を介して回転自在に保持された軸８と、
軸８に固着されたハブ６と、更に、ハブ６の内周
面に接着剤１０によつて固着されたロータ７とに
よつて構成されている。ロータ７はマグネツトに
よつて形成されており、ステータ２に設けられた
電磁コイル２Ａに通電されることでロータ７は軸
８を中心に回転駆動される。ハブ６の外周面には
ｂに示すように突起した複数のリブ６Ａが設けら
れ、媒体４の貫通孔４Ａとハブ６とが嵌合される
ように形成されている。 A plurality of media 4 stacked at predetermined intervals by spacers 5 are mounted on a spindle mechanism 11 fixed to the frame 1, and rotated as shown by arrow A. On the other hand, a magnetic head is fixed to the tip of the swing arm 9A of the actuator mechanism 9 fixed to the frame 1, and recording and reproduction by the magnetic head is performed by rotating the swing arm 9A. This spindle mechanism 11 includes a stator 2 fixed to a frame 1, a shaft 8 rotatably held by the stator 2 via a bearing 3,
It is composed of a hub 6 fixed to a shaft 8 and a rotor 7 further fixed to the inner peripheral surface of the hub 6 with an adhesive 10. The rotor 7 is formed of a magnet, and is driven to rotate around a shaft 8 by energizing an electromagnetic coil 2A provided on the stator 2. A plurality of protruding ribs 6A are provided on the outer peripheral surface of the hub 6 as shown in b, and are formed so that the through hole 4A of the medium 4 and the hub 6 are fitted.
従来このようなスピンドル機構１１ではハブ６
はアルミ材によつて形成され、ハブ６の内周面に
接着剤１０によつて固着されたロータ７は磁性材
によつて形成されている。 Conventionally, in such a spindle mechanism 11, the hub 6
is made of aluminum, and the rotor 7, which is fixed to the inner peripheral surface of the hub 6 with an adhesive 10, is made of a magnetic material.
一般的に電子装置は０〜40℃の温度条件では稼
動できるように配慮されている。しかし、このよ
うな温度範囲ではハブとロータ７とでは前述の材
質の違いによる膨張、収縮の差が大きいため、膨
張および収縮の差による力が加わり歪を生じる欠
点を有していた。この歪がハブ６を変形させ、更
に、積層された媒体４が変形される。このように
媒体４が変形するとアクチユエータ機構による所
定のトラツクの選択ができなくなるオフトラツク
障害を発生する問題を有していた。 Generally, electronic devices are designed to operate under temperature conditions of 0 to 40°C. However, in such a temperature range, there is a large difference in expansion and contraction between the hub and the rotor 7 due to the above-mentioned difference in materials, and this has the drawback of causing distortion due to the addition of force due to the difference in expansion and contraction. This strain deforms the hub 6, which in turn deforms the stacked media 4. When the medium 4 is deformed in this way, there is a problem in that an off-track failure occurs in which the actuator mechanism cannot select a predetermined track.
(c) 考案の目的
本考案の目的は、稼動許容温度の範囲における
歪による媒体の影響を極力小さくし、前述の問題
点を除去したものを提供するものである。(c) Purpose of the invention The purpose of the invention is to minimize the influence of distortion on the medium within the allowable operating temperature range, thereby eliminating the aforementioned problems.
(d) 考案の構成
本考案の目的は、かゝるスピンドル機構におい
て、ハブの内周面とロータの外周面とは所定の間
隙を有するように形成すると共に、前述のリブの
所定間隔のほぼ中間に相当する該間隙には該ハブ
と該ロータとが固着されるリブが設けられたこと
を特徴とするスピンドル機構により達成される。(d) Structure of the invention The object of the invention is to form such a spindle mechanism so that the inner circumferential surface of the hub and the outer circumferential surface of the rotor have a predetermined gap, and to create a spindle mechanism with a predetermined gap approximately equal to the predetermined spacing between the ribs. This is achieved by a spindle mechanism characterized in that the gap corresponding to the middle is provided with a rib to which the hub and the rotor are fixed.
(e) 考案の実施例 以下本考案を第２図を参考に詳細に説明する。(e) Example of implementation of the idea The present invention will be explained in detail below with reference to FIG.
第２図は本考案によるスピンドル機構の一実施
例を示すＢ−B′の断面図である。 FIG. 2 is a sectional view taken along line B-B' showing an embodiment of the spindle mechanism according to the present invention.
ハブ６の内周面とロータ７の外周面との間に間
隙Ｓを設け、媒体４とハブ６とが嵌合されるリブ
６Ａのピツチｐの中央部に位置した箇所のハブ６
の内面にリブ６Ｂ設けたものである。そこで、ハ
ブ６とロータ７との固着はこのリブ６Ｂに接着剤
１０を塗布して接着されることで行なわれてい
る。 A gap S is provided between the inner peripheral surface of the hub 6 and the outer peripheral surface of the rotor 7, and the hub 6 is located at the center of the pitch p of the rib 6A where the medium 4 and the hub 6 are fitted.
A rib 6B is provided on the inner surface. Therefore, the hub 6 and the rotor 7 are fixed together by applying an adhesive 10 to the rib 6B.
このように形成すると前述の膨張または収縮に
よる歪の力は矢印F1またはF2に示すリブ６Ｂの
箇所に加わり、媒体４が嵌合されたリブ６Ａに対
する歪は小さくなる。したがつて、積層された媒
体４における変形はほとんど生じなくすることが
できる。 When formed in this manner, the strain force due to the aforementioned expansion or contraction is applied to the portion of the rib 6B shown by the arrow F 1 or F 2 , and the strain on the rib 6A into which the medium 4 is fitted becomes small. Therefore, deformation of the stacked media 4 can be prevented from occurring.
尚、リブ６Ｂはハブ６と同材によつて形成され
ているが、ロータ７によつて形成することもで
き、また、同等の効果を得ることができる。 Although the rib 6B is made of the same material as the hub 6, it can also be made of the rotor 7, and the same effect can be obtained.
(f) 考案の効果
以上説明したように本考案はロータ７とハブ６
との間に間隙Ｓを形成すると共に、リブ６Ａのピ
ツチｐの中間に相当する箇所に固着するリブ６Ｂ
を設けたものである。これにより稼動の許容温度
範囲におけるロータ７とハブ６とによる歪が媒体
４に対する影響は小さくなり、記録再生に際して
オフトラツクの発生を防止でき、実用効果は大で
ある。(f) Effect of the invention As explained above, this invention
The rib 6B forms a gap S between the rib 6A and the rib 6B, which is fixed to a position corresponding to the middle of the pitch p of the rib 6A.
It has been established. As a result, the effect of distortion caused by the rotor 7 and hub 6 on the medium 4 within the permissible operating temperature range is reduced, and the occurrence of off-track during recording and reproduction can be prevented, which has a great practical effect.
第１図は従来の磁気デイスク装置の概略を示す
ａは側面図、ｂはＢ−B′断面図、第２図は本考
案によるスピンドル機構の一実施例を示すＢ−Ｂ
断面図を示す。
図中において、１はフレーム、２はステータ、
３はベアリング、４は媒体、５はスペーサ、６は
ハブ、７はロータ、９はアクチユエータ機構、１
０は接着剤、１１はスピンドル機構、６Ａ，６Ｂ
はリブを示す。
Fig. 1 shows an outline of a conventional magnetic disk device; a is a side view, b is a sectional view taken along line B-B', and Fig. 2 shows an embodiment of a spindle mechanism according to the present invention.
A cross-sectional view is shown. In the figure, 1 is a frame, 2 is a stator,
3 is a bearing, 4 is a medium, 5 is a spacer, 6 is a hub, 7 is a rotor, 9 is an actuator mechanism, 1
0 is adhesive, 11 is spindle mechanism, 6A, 6B
indicates ribs.
Claims (1)
した複数の第１のリブが外周面に所定間隔で設け
られた筒状のハブと、該ハブの内周面にマグネツ
トによつて形成された筒状の外周面が固着された
ロータと、該ロータに対応して設けられた電磁コ
イルを有するステータとを備え、該貫通孔に該ハ
ブを挿入することにより、該貫通孔は該第１のリ
ブを介して該ハブと嵌合され、該ロータの回転駆
動により該媒体が回転されるスピンドル機構にお
いて、前記ハブの内周面と前記ロータの外周面と
は所定の間隙を有するように形成すると共に前記
第１のリブの所定間隔のほぼ中間に相当する該間
隙には該ハブと該ロータとが固着される第２のリ
ブが設けられたことを特徴とするスピンドル機
構。 A disk-shaped medium having a through hole in the center, a cylindrical hub having a plurality of protruding first ribs provided at predetermined intervals on the outer circumferential surface, and a magnet formed on the inner circumferential surface of the hub. A rotor having a cylindrical outer peripheral surface fixed thereto, and a stator having an electromagnetic coil provided corresponding to the rotor, and by inserting the hub into the through hole, the through hole In the spindle mechanism, the spindle mechanism is fitted with the hub through a rib, and the medium is rotated by the rotational drive of the rotor, such that an inner circumferential surface of the hub and an outer circumferential surface of the rotor have a predetermined gap. A spindle mechanism characterized in that a second rib to which the hub and the rotor are fixed is provided in the gap corresponding to approximately the middle of a predetermined gap between the first ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6136882U JPS58163047U (en) | 1982-04-27 | 1982-04-27 | spindle mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6136882U JPS58163047U (en) | 1982-04-27 | 1982-04-27 | spindle mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58163047U JPS58163047U (en) | 1983-10-29 |
| JPS637970Y2 true JPS637970Y2 (en) | 1988-03-09 |
Family
ID=30071570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6136882U Granted JPS58163047U (en) | 1982-04-27 | 1982-04-27 | spindle mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58163047U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4717977A (en) * | 1986-09-25 | 1988-01-05 | Micropolis Corporation | High capacity Winchester disk drive |
| JPH0738266B2 (en) * | 1987-04-15 | 1995-04-26 | 日本電産株式会社 | Spindle motor for disk |
-
1982
- 1982-04-27 JP JP6136882U patent/JPS58163047U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58163047U (en) | 1983-10-29 |
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