JP2624367B2 - Magnetic disk drive - Google Patents
Magnetic disk driveInfo
- Publication number
- JP2624367B2 JP2624367B2 JP29937990A JP29937990A JP2624367B2 JP 2624367 B2 JP2624367 B2 JP 2624367B2 JP 29937990 A JP29937990 A JP 29937990A JP 29937990 A JP29937990 A JP 29937990A JP 2624367 B2 JP2624367 B2 JP 2624367B2
- Authority
- JP
- Japan
- Prior art keywords
- stator
- spindle motor
- resin
- magnetic disk
- 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.)
- Expired - Fee Related
Links
- 239000011347 resin Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Moving Of Heads (AREA)
- Rotational Drive Of Disk (AREA)
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する。The present invention relates to a magnetic disk drive.
従来、磁気ディスク装置、例えばフロッピーディスク
装置の駆動部は、媒体を回転させるハブ部を有するスピ
ンドルモータと、磁気ヘッド組立体が直線移動するため
の案内レールと、磁気ヘッド組立体を駆動するステッピ
ングモータと、媒体のシャーシに対する高さを決定する
凸部等が、フロッピーディスク装置のシャーシに別個に
取り付けられる構造となっていた。2. Description of the Related Art Conventionally, a driving unit of a magnetic disk device, for example, a floppy disk device, includes a spindle motor having a hub for rotating a medium, a guide rail for a magnetic head assembly to move linearly, and a stepping motor for driving the magnetic head assembly. And a convex portion for determining the height of the medium with respect to the chassis are separately attached to the chassis of the floppy disk device.
上述した従来の磁気ディスク装置の駆動部は、主要部
品を、予め加工されたシャーシの個々の部分に別々に取
り付けているため、スピンドルモータのハブ部と媒体と
の平面位置（高さ）及び面平行度、あるいは媒体基準面
と磁気ヘッドとの高さ、あるいは、ハブ回転軸中心に対
する磁気ヘッドの直線移動方向等に高い寸法精度を持た
せるためには、個々の部品に更に高い寸法精度が要求さ
れるという欠点があった。In the above-described drive unit of the conventional magnetic disk drive, the main parts are separately attached to individual parts of the chassis which have been processed in advance, so that the plane position (height) and the surface of the hub part of the spindle motor and the medium are different. In order to provide high dimensional accuracy in the degree of parallelism, the height between the medium reference plane and the magnetic head, or the direction of linear movement of the magnetic head with respect to the center of the hub rotation axis, higher dimensional accuracy is required for individual parts. There was a disadvantage that it was done.
さらに、組立て工程においても多くの相対位置に高い
精度が要求されるため、多くの治具を使用しなければな
らなかった。また、強度的には温度変化や衝撃，振動な
どによるシャーシのひずみから来る媒体上の磁気ヘッド
の位置ズレによるマージン低下を考慮し、機構全体の剛
性を高めるためシャーシのアルミダイカストや鋼板の厚
さを増加させる必要があり、装置全体の重量が増加する
という欠点があった。Further, high accuracy is required for many relative positions in the assembling process, so that many jigs have to be used. In consideration of the strength, considering the margin drop due to the misalignment of the magnetic head on the medium due to the distortion of the chassis due to temperature change, shock, vibration, etc., the thickness of the aluminum die casting of the chassis and the thickness of the steel plate to increase the rigidity of the whole mechanism And the weight of the entire apparatus increases.
第１の本発明の磁気ディスク装置は、スピンドルモー
タのステータとリニアモータのステータを金属板を介し
て同時に一体的に樹脂成形すると共に、スピンドルモー
タのステータとリニアモータのステータを樹脂封入する
事を特徴とする。The magnetic disk drive according to the first aspect of the present invention is characterized in that the stator of the spindle motor and the stator of the linear motor are simultaneously and integrally resin-molded via a metal plate, and the stator of the spindle motor and the stator of the linear motor are sealed with resin. Features.
第２の本発明の磁気ディスク装置は、スピンドルモー
タの軸受けハウジングと媒体平面位置あるいは高さを設
定する凸部とスピンドルモータのステータ及びリニアモ
ータのステータを金属板を介して同時に一体成形すると
共に、それぞれを樹脂封入したことを特徴とする。In the magnetic disk drive of the second aspect of the present invention, the bearing housing of the spindle motor, the projection for setting the plane position or height of the medium, the stator of the spindle motor, and the stator of the linear motor are simultaneously integrally formed via a metal plate. It is characterized in that each is sealed with resin.
次に本発明について図面を参照して説明する。 Next, the present invention will be described with reference to the drawings.
第１図は本発明の一実施例を示す平面図である。フロ
ッピーディスク装置の駆動部分では、リニアモータのス
テータ２とスピンドルモータのステータ３とは、それぞ
れ樹脂封入されている。FIG. 1 is a plan view showing an embodiment of the present invention. In the drive portion of the floppy disk drive, the stator 2 of the linear motor and the stator 3 of the spindle motor are each sealed with resin.
また、スピンドルモータ軸受ハウジング5,媒体の高さ
を決定する凸部6,媒体の平面位置と高さを決定する凸部
７が同時に樹脂成形され、それぞれが金属板１を介して
一体化されている。Also, a spindle motor bearing housing 5, a convex portion 6 for determining the height of the medium, and a convex portion 7 for determining the planar position and height of the medium are simultaneously resin-molded, and each is integrated via a metal plate 1. I have.
さらに、補強部４によってリニアモータのステータ２
とスピンドモータのステータ３は金属板１の裏表両面に
渡って同一樹脂で一体化されている。Furthermore, the reinforcing portion 4 allows the stator 2 of the linear motor to be mounted.
The stator 3 of the spinned motor is integrated with the same resin on both the front and back surfaces of the metal plate 1.
第２図，第３図は本実施例のそれぞれ断面図、底面図
を示す。2 and 3 show a sectional view and a bottom view, respectively, of this embodiment.
以上説明したように本発明は、磁気ディスク装置の駆
動部の相対寸法を設定する要素を金属板に同時に一体樹
脂成形する事により、ハブの回転軸中心と媒体との平面
位置及び高さ及び面平行度の関係、さらにハブの回転軸
とリニアモータの平面位置及び高さ及び面平行度の関係
を樹脂成形時に決定できるため、極めて高い精度で相互
の関係寸法を決定できる。As described above, according to the present invention, the element for setting the relative size of the drive unit of the magnetic disk drive is simultaneously molded integrally with a metal plate by resin molding, so that the plane position, the height and the surface between the center of the rotation axis of the hub and the medium are formed. Since the relationship between the parallelism and the relationship between the plane position and height of the rotary shaft of the hub and the linear motor and the surface parallelism can be determined at the time of resin molding, the mutual relationship dimensions can be determined with extremely high accuracy.
さらにフロッピーディスク装置としての組立時の調整
は、磁気ヘッドの位置出しのみとなり、組立が極めて簡
素化できる。さらにまた、スピンドルモータのステータ
およびリニアモータのモータを樹脂封入することによ
り、不要な空間が樹脂によって埋められるため、効果的
にスピンドルモータおよびリニアモータの防塵対策が可
能となり、同時に駆動ユニットの剛性を確保できるの
で、温度変化や衝撃，振動等に対して性能を落すことな
く軽量化することが可能となるという効果がある。Further, the adjustment at the time of assembling as the floppy disk device is performed only by positioning the magnetic head, and the assembling can be extremely simplified. Furthermore, by filling the stator of the spindle motor and the motor of the linear motor with resin, unnecessary space is filled with the resin, so that dust prevention of the spindle motor and the linear motor can be effectively performed, and at the same time, the rigidity of the drive unit is reduced. As a result, there is an effect that it is possible to reduce the weight without deteriorating the performance against temperature changes, shocks, vibrations, and the like.
第１図，第２図，第３図は本発明の平面図，断面図，底
面図である。 １……金属板、２……リニアモータのステータ、３……
スピンドルモータのステータ、４……補強部、５……軸
受けハウジング、６……凸部、７……凸部。1, 2, and 3 are a plan view, a sectional view, and a bottom view of the present invention. 1 ... metal plate, 2 ... stator of linear motor, 3 ...
The stator of the spindle motor, 4... A reinforcing portion, 5... A bearing housing, 6... A convex portion, 7.
Claims (2)
タのステータを金属板で介して同時に一体的に樹脂成形
すると共に、スピンドルモータのステータとリニアモー
タのステータをそれぞれ樹脂封入する事を特徴とする磁
気ディスク装置。A magnetic disk characterized in that a stator of a spindle motor and a stator of a linear motor are simultaneously and integrally resin-molded via a metal plate, and the stator of the spindle motor and the stator of the linear motor are resin-encapsulated respectively. apparatus.
体平面位置あるいは高さを決定する凸部とスピンドルモ
ータのステータ及びリニアモータのステータを金属板を
介して同時に一体的に成形すると共に、スピンドルモー
タのステータとリニアモータのステータをそれぞれ樹脂
封入したことを特徴とする磁気ディスク装置。2. A bearing housing of a spindle motor, a projection for determining a medium plane position or height, a stator of a spindle motor and a stator of a linear motor are simultaneously and integrally formed via a metal plate. And a stator of the linear motor, respectively, in which a resin is sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29937990A JP2624367B2 (en) | 1990-11-05 | 1990-11-05 | Magnetic disk drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29937990A JP2624367B2 (en) | 1990-11-05 | 1990-11-05 | Magnetic disk drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04170754A JPH04170754A (en) | 1992-06-18 |
| JP2624367B2 true JP2624367B2 (en) | 1997-06-25 |
Family
ID=17871802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29937990A Expired - Fee Related JP2624367B2 (en) | 1990-11-05 | 1990-11-05 | Magnetic disk drive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2624367B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990056329A (en) * | 1997-12-29 | 1999-07-15 | 윤종용 | Base Assembly for Hard Disk Drives |
-
1990
- 1990-11-05 JP JP29937990A patent/JP2624367B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04170754A (en) | 1992-06-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |