JPS6173272A - Driving system of magnetic disk driving device - Google Patents
Driving system of magnetic disk driving deviceInfo
- Publication number
- JPS6173272A JPS6173272A JP19404984A JP19404984A JPS6173272A JP S6173272 A JPS6173272 A JP S6173272A JP 19404984 A JP19404984 A JP 19404984A JP 19404984 A JP19404984 A JP 19404984A JP S6173272 A JPS6173272 A JP S6173272A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- disk
- drive
- rotating
- driving
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/32—Maintaining desired spacing between record carrier and head, e.g. by fluid-dynamic spacing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
Landscapes
- Rotational Drive Of Disk (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ドライブ装置の駆動方式に関する
ものでちる。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a drive system for a magnetic disk drive device.
本発明者等は最近の小梨化、ローコスト化。 The present inventors are working on the recent miniaturization and low cost.
省エネルギー化の要求を満丁ため、その研究を進めてい
るが、その一手段としてフロッピーディスクドライブ装
置における磁気ヘッドのロード・アンロード装置の省略
を行ったところ1磁気ヘツドと媒体(フロッピーディス
ク)を接触させた1\スピンドルモータの回転を停止し
て放置し友場合、吸着現象を起し、起動に必要なトルク
は正常時の5倍以上になることがわかった。We are conducting research in order to meet the demands for energy conservation, and as a means of doing so, we have omitted the loading/unloading device for the magnetic head in a floppy disk drive. It was found that if the spindle motor that was in contact with the motor was left unattended with its rotation stopped, an adhesion phenomenon occurred and the torque required to start it up was more than five times that of normal.
従ってロード・アンロード装fRヲ省略しようとする場
合は、ロード・アンロード装置を具備し次磁気ディスク
ドライブ装置よりスピンドルモータの容量を5倍としな
ければならない。Therefore, if the loading/unloading device fR is to be omitted, the capacity of the spindle motor must be increased five times that of the next magnetic disk drive device by providing the loading/unloading device.
このことは本発明者等の研究の目的に反することなので
、更に研究の結果、比較的簡単な方法でこの問題を解決
することができたので、こ\てその方法を提供しようと
するものでちる。This goes against the purpose of the inventors' research, and as a result of further research, we were able to solve this problem with a relatively simple method, so we would like to provide that method. Chiru.
即ち1本発明は駆動モータと磁気ディスク間の動力伝達
系に遊びを設け、その遊びの範囲内前記駆動モータ全逆
転させた後正転させることにより吸着からの脱出に成功
し友もので1本発明の原理は、動力伝達系とスピンドル
モータの回転部の慣性の運動エネルギーを利用して吸着
からの脱出を図ったものでちる。That is, the present invention provides play in the power transmission system between the drive motor and the magnetic disk, and within the range of the play, the drive motor is fully reversed and then rotated in the forward direction, thereby successfully escaping from adsorption. The principle of the invention is to use the inertial kinetic energy of the power transmission system and the rotating part of the spindle motor to escape from adsorption.
この方法によれば、磁気ディスクドライブ装置における
磁気ヘッドのロード・アンロード装置全省略することが
できること、駆動モータは従来装置と同じ容量のもので
済むこと、従って磁気ディスクドライブ装置の小型化、
ローコスト化及び省エネルギー化を進めることが可能と
なる。According to this method, the magnetic head loading/unloading device in the magnetic disk drive device can be completely omitted, the drive motor can be of the same capacity as the conventional device, and therefore the magnetic disk drive device can be miniaturized.
It becomes possible to promote cost reduction and energy conservation.
以下本発明の実施例を図面に基づき説明する。Embodiments of the present invention will be described below based on the drawings.
図面に示す実施例は近年開発され次カートリッジ式3.
5インチフロッピーディスクドライブ装置VC適用した
堝せの実施例を示すもので、第1図は平面図、第2図は
側面図でちる。The embodiment shown in the drawings is a recently developed cartridge type 3.
This figure shows an embodiment of a 5-inch floppy disk drive device VC, in which FIG. 1 is a plan view and FIG. 2 is a side view.
第1ryJ及び第2図において、1蝶カートリツジ2内
に収納された3、5インチフロッピーディスク、3はそ
の中心に取付けられた金属盤で。In Fig. 1 and Fig. 2, 1 is a 3.5-inch floppy disk stored in a butterfly cartridge 2, and 3 is a metal plate attached to the center of the disk.
中心にセンタ孔4が外側に長方形状のドライブ孔5が設
けられている。A center hole 4 is provided at the center and a rectangular drive hole 5 is provided on the outside.
61″jスピンドルモーメ7によって、@動されるハブ
で、中心に設けたセンタピン8は前記センタ孔4に、ま
た外側に設けtドライブピン9は前記ドライブ孔5に挿
入し、このドライブ孔5とドライブビン9の保合は1回
転方向に角度約30°のガタ(遊び)がちることは公知
のものと同様でちる。61''J is a hub that is moved by a spindle motor 7, and a center pin 8 provided at the center is inserted into the center hole 4, and a drive pin 9 provided on the outside is inserted into the drive hole 5, and the center pin 8 provided at the center is inserted into the drive hole 5. The attachment of the drive bin 9 is similar to that of known systems in that it has a backlash (play) of about 30 degrees in the direction of one rotation.
10は下部基台11と上部可動アーム12に夫々磁気ヘ
ッド13.14に取付は窺キャリッジで、磁気ヘッド1
3.14はバネ15に工ってフロッピーディスク1に接
触するよう構成されている。Reference numeral 10 denotes a carriage that attaches magnetic heads 13 and 14 to the lower base 11 and upper movable arm 12, respectively.
3.14 is constructed in a spring 15 so as to come into contact with the floppy disk 1.
第3図は本発明にか\る駆動回路のブロック図で、16
はIO化された公知のモータ駆動回路でちる。FIG. 3 is a block diagram of a drive circuit according to the present invention.
is a known IO motor drive circuit.
このモータ駆動回路1 g#:j、端子17に駆動信号
が、−また端子1Bに正転信号例えば” H”が与えら
れるとモータ7を正伝させ逆転信号@L″が与えられる
とモータ7が逆転する。This motor drive circuit 1 g#:j, when a drive signal is applied to the terminal 17 and a forward rotation signal, for example "H", is applied to the terminal 1B, the motor 7 is driven in the normal direction, and when a reverse rotation signal @L'' is applied, the motor 7 is Reverse.
本発明装置は、最初に端子18に逆転信号@D″を与え
、一定時間後(実施例ではロータ30°回転させる時間
)正転信号“H′全端子18に与えるタイマー付回転方
向信号出力回路20を設けたもので、今起動スイッチ1
9を「オン」にすると、スピンドルモータ7は30°逆
転、即ち第1図において反時計方向!c30’逆転した
後。The device of the present invention is a rotation direction signal output circuit with a timer that first applies a reverse rotation signal @D'' to the terminal 18, and after a certain period of time (in the embodiment, the time to rotate the rotor 30 degrees) forward rotation signal ``H'' to all terminals 18. 20, now start switch 1
9 is turned on, the spindle motor 7 is rotated 30 degrees in reverse, that is, counterclockwise in FIG. 1! After c30′ inversion.
正転する。Rotate forward.
従って、磁気ヘッド13.14がフロッピーディスク1
に吸着した場合でも逆転から正転に移行した場せ、ドラ
イブピン9がドライブ孔5に衝突するまでは無負荷でち
るので9回転スピードが上り、モータのロータ部の回転
運動エネルギーによって、ドライブピン9がハンマーで
叩く様にフロッピーディスク1に衝撃?与えるので、吸
着からフロッーディスク全離脱させることができる。Therefore, the magnetic heads 13 and 14 are connected to the floppy disk 1.
Even if it is attracted to the motor, if the rotation changes from reverse to normal, the drive pin 9 will rotate without any load until it collides with the drive hole 5, so the 9 rotation speed will increase, and the rotational kinetic energy of the rotor of the motor will cause the drive pin to Does 9 impact floppy disk 1 like a hammer? This allows the entire flow disk to be removed from suction.
この方法によれば、モータの起動トルクを1桁大きくシ
九のと同等の効果が得られるので。According to this method, the starting torque of the motor can be increased by an order of magnitude, and the same effect as that of the method described above can be obtained.
充分吸着からの離脱を行うことができる。Sufficient separation from adsorption can be achieved.
以上説明した実施例は、ドライブ孔5とドライブビン9
間にガタ(遊び)がちる。3.5インチフロッピーディ
スクビライブ装gtに適用したため、その動力伝達系に
遊びがちるので1機械部分に特別の改良せず従来装置を
そのま\使つtが、!@力伝達系て遊びがないフロッピ
ーディスクドライブ装置に適用しようと・する場合は。The embodiment described above has a drive hole 5 and a drive bin 9.
There is play (play) in between. Since it was applied to a GT equipped with a 3.5-inch floppy disk believer, there is a tendency for play in the power transmission system, so the conventional device could be used as is without making any special improvements to the mechanical parts. @If you are trying to apply it to a floppy disk drive device with no play in the force transmission system.
モータとフロッピーディスク内の動力伝達系に回転方向
に遊びを有する接手を設けnばよい。It is sufficient to provide a joint having play in the rotational direction in the power transmission system between the motor and the floppy disk.
従来の、駆動方式による場合は磁気ヘッドのロード・ア
ンロード装置が必要でちるが1本発明によればスピンド
ルモータの容量を大きくてることなく磁気ヘッドのロー
ト”・アンロード装置を省略することができる。従って
磁気ディスクドライブ装置の小型化を図ることができる
。In the conventional drive method, a magnetic head loading/unloading device is required, but according to the present invention, the magnetic head funnel/unloading device can be omitted without increasing the capacity of the spindle motor. Therefore, the size of the magnetic disk drive device can be reduced.
磁気ヘッドの吸着力を小さくするために磁気ヘッドの形
状、ディスク表面及び材料の改良が考えられるが、新た
な技術的問題が発生する。Although it is possible to improve the shape of the magnetic head, the disk surface, and the material in order to reduce the attraction force of the magnetic head, new technical problems arise.
ところが1本発明てよれば実施がローコストで容易に行
うことができる。However, according to the present invention, it can be easily implemented at low cost.
こ\ではフロッピーディスクドライブ装置に適用した場
合を例示したが、他の磁気ディスクドライブ装置に適用
し得るは勿論でちる。Although the case where the present invention is applied to a floppy disk drive device is illustrated here, it is of course possible to apply the present invention to other magnetic disk drive devices.
第1図は本発明の実施例の平面図、第2図はその側面図
、第3図は駆動回路のブロック図でちる。
1・・・フロッピーディスク、2・・・カートリッジ。
3・・・金、’、=、44.−、 、 4・・・センタ
孔、5・・・ドライブ孔。
G・・・ハブ、7・・・スピンドルモータ、8・・・セ
ンタピン、9・・・ドライブビン、10・・・キャリッ
ジ。
11・・・下部基台、12・・・上部可動アーム、13
及び14・・・bH気ヘッド、15・・・バネ、16・
・・モータN(動回路、17及び18・・・端子、19
・・・起動スイッチ、20・・・タイマー付回転方向信
号出力回路
特許出願人 株式会社ワイ・イー・データ団
富士通株式会社
第1図
第 2 図
第3図FIG. 1 is a plan view of an embodiment of the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a block diagram of a drive circuit. 1...Floppy disk, 2...Cartridge. 3... Gold, ', =, 44. -, , 4...Center hole, 5...Drive hole. G: Hub, 7: Spindle motor, 8: Center pin, 9: Drive bin, 10: Carriage. 11... Lower base, 12... Upper movable arm, 13
and 14... bH air head, 15... spring, 16...
...Motor N (dynamic circuit, 17 and 18...terminals, 19
...Start switch, 20...Rotation direction signal output circuit with timer Patent applicant YE Data Group Co., Ltd.
Fujitsu Limited Figure 1 Figure 2 Figure 3
Claims (1)
、その遊びの範囲内前記駆動モータを逆転させた後正転
させることを特徴とする駆動方式。A drive system characterized in that play is provided in a power transmission system between a drive motor and a magnetic disk, and within the range of the play, the drive motor is rotated in the reverse direction and then rotated in the forward direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19404984A JPS6173272A (en) | 1984-09-18 | 1984-09-18 | Driving system of magnetic disk driving device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19404984A JPS6173272A (en) | 1984-09-18 | 1984-09-18 | Driving system of magnetic disk driving device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6173272A true JPS6173272A (en) | 1986-04-15 |
JPH0159665B2 JPH0159665B2 (en) | 1989-12-19 |
Family
ID=16318091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19404984A Granted JPS6173272A (en) | 1984-09-18 | 1984-09-18 | Driving system of magnetic disk driving device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6173272A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03286395A (en) * | 1990-04-03 | 1991-12-17 | Canon Inc | Schedule managing device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5283210A (en) * | 1975-12-30 | 1977-07-12 | Fujitsu Ltd | Magnetic disc driving method |
JPS583311A (en) * | 1981-06-30 | 1983-01-10 | Clarion Co Ltd | Linking mechanism for tuning shaft for push button tuner |
-
1984
- 1984-09-18 JP JP19404984A patent/JPS6173272A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5283210A (en) * | 1975-12-30 | 1977-07-12 | Fujitsu Ltd | Magnetic disc driving method |
JPS583311A (en) * | 1981-06-30 | 1983-01-10 | Clarion Co Ltd | Linking mechanism for tuning shaft for push button tuner |
Also Published As
Publication number | Publication date |
---|---|
JPH0159665B2 (en) | 1989-12-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |