JPS60236170A - Magnetic disc driving device - Google Patents
Magnetic disc driving deviceInfo
- Publication number
- JPS60236170A JPS60236170A JP9157384A JP9157384A JPS60236170A JP S60236170 A JPS60236170 A JP S60236170A JP 9157384 A JP9157384 A JP 9157384A JP 9157384 A JP9157384 A JP 9157384A JP S60236170 A JPS60236170 A JP S60236170A
- Authority
- JP
- Japan
- Prior art keywords
- moving part
- thin plate
- pulley
- access mechanism
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
Landscapes
- Moving Of Heads (AREA)
Abstract
Description
【発明の詳細な説明】 〔技術分野〕 本発明は磁気ディスク駆動装置に関する。[Detailed description of the invention] 〔Technical field〕 The present invention relates to a magnetic disk drive.
磁気ディスク駆動装置においてけ、記録容ｌの大容量化
、データアクセスの高速化を達成する必要がある。この
ためディスクへの磁気ヘッドのアクセスの高精度化、高
速化のために従来多くの発明がなされてきた。その代表
的な実施例ｆ第１図に示す（米国特許４１６１００４）
。In magnetic disk drives, it is necessary to increase the recording capacity and speed up data access. For this reason, many inventions have been made to improve the accuracy and speed of access by magnetic heads to disks. A typical example thereof is shown in FIG. 1 (US Pat. No. 4,161,004).
.
１け回転形態動機でその出力軸に設けられ几ブ−り２に
、薄板５が巻きつけらねでおり、中間部４にお一へてプ
ーリ２に固？きれている。中間部４よね一方にはスリッ
ト状の穴８が設けられており薄板目その穴をくぐって交
差し、その両端５がアクセス機構の移動部６１で固定ば
れている。従って原動機１の回転によって移動部６は直
進運動を行う。この実施例によハば機構が簡素で原動機
の回転角精度のみによってアクセス機構のトラック位置
精度が保証きれるとい）利点を有する。しかしトラ・ツ
ク密ｌ′ｆｆ向上ζせるにはブーり径を小ζくする必要
があり、従って強度上の限界があり、また原動機の回転
角度を不染くする場合にも製作上の限界がある。さらに
トラック密度を高くするに従って必然的にアクセスしな
ければならないトラ・ツク数も増加するが、第１図でも
明らかな様Ｋ。A single rotary type motor is provided on its output shaft, and a thin plate 5 is wound around a bobbin 2, which is connected to an intermediate portion 4 and fixed to a pulley 2. It's broken. A slit-like hole 8 is provided in one side of the intermediate portion 4, and the thin plates pass through the hole and intersect, and both ends 5 of the hole are fixed by a moving portion 61 of an access mechanism. Therefore, the rotation of the prime mover 1 causes the moving part 6 to move in a straight line. This embodiment has the advantage that the access mechanism is simple and the track position accuracy of the access mechanism can be guaranteed only by the rotation angle accuracy of the prime mover. However, in order to improve the track density l'ff, it is necessary to reduce the diameter of the boob, and therefore there is a limit in terms of strength, and there is also a manufacturing limit in making the rotation angle of the prime mover non-staining. There is. Furthermore, as the track density increases, the number of tracks that must be accessed also increases, as is clear from FIG.
薄板が相互に干渉するため、原動機が１回転以上回転す
る必要のあるトラック数を確保することは不可能であっ
た、
〔目的〕
本発明は上記のような欠点を除去するために、微小なト
ラック送ｈｆ実籾す７）とともに、Ｉラック数の増大を
計ることを目的とする。Because the thin plates interfere with each other, it has been impossible to secure the number of tracks required for the prime mover to rotate more than one revolution. [Objective] The present invention aims to eliminate the above drawbacks by The purpose is to increase the number of I-racks as well as increase the number of I-racks.
〔概要］
本発明の磁気ディスク駆動装置は、へ９ド−ｒ／／セス
機構に回転形態動機と、討Ｊ９動機出力＄Ｉ１１＋たけ
出力軸に設けらｆまたプーリにその一部分を周回・密着
せしぬ、残余部分？もうてアク士ス機構移動部に設けら
ｈた取付Ｍを包絡Ｉ７、該取付部にネｊして該原動機と
ｄ反対側に位置する一点が装置１．７１移動部に固定ζ
ねた円環状で奇形げ１而をもつ薄板を有することを特徴
とする。[Summary] The magnetic disk drive device of the present invention has a rotary form motive in the access mechanism, a motive output $I11+, which is provided on the output shaft, and a part of which is orbited and brought into close contact with the pulley. Shinu, the remaining part? A mounting M provided on the moving part of the axis mechanism is wrapped around I7, and a point located on the opposite side of the prime mover is fixed to the moving part of the device 1.71.
It is characterized by having a thin plate that is circular and has an odd shape.
以下、本発明について実施例に基づき詳細ＶＣ説明する
。Hereinafter, the present invention will be explained in detail based on embodiments.
第２図ｄ本考案の一実施例のｎ面図を示し、第３図は他
の実施例の断面図、第４図は同じく＠視図を示す。FIG. 2d shows an n-side view of one embodiment of the present invention, FIG. 3 is a cross-sectional view of another embodiment, and FIG. 4 is also a @-view.
第２図において、円プ状薄板１１ｔｔ原勧機Ｋｅけられ
たプーリ１２に巻きつけられており−Ａ１３においてプ
ーリ１２１Ｃ固定されている。相互に交差した薄板１１
の残余部分は直線案内されているアクセス機構移動部１
９に設けられた取付部１４を包絡しており、取付部にけ
固定ローラ１５と可動ローラ１６が設けられ薄板１１ｆ
保持するとともＫばね１７によって可動ローラ１６を外
方に押圧し薄板１１に張力を加えている。また薄板１１
けプーリ１２とけ反対側の位置１８１Ｃおいてアクセス
機構の非移動部に固定されている。In FIG. 2, a circular thin plate 11tt is wound around a pulled pulley 12, and is fixed to a pulley 121C at -A13. mutually crossed thin plates 11
The remaining part of the access mechanism moving part 1 is linearly guided.
9, and a fixed roller 15 and a movable roller 16 are provided at the mounting portion, and the thin plate 11f
While holding the thin plate 11, the movable roller 16 is pressed outward by the K spring 17 to apply tension to the thin plate 11. Also thin plate 11
It is fixed to the non-moving part of the access mechanism at a position 181C on the opposite side of the pulley 12.
従ってプーリ１２の回転に伴って移動部１９ｄ直進運動
を行うが、プーリ周の回転移動距離の半分だけ移動部１
９け移動し、従来の実施例に比べてトラック密度を倍に
することが可能となる。Therefore, as the pulley 12 rotates, the moving part 19d moves in a straight line, but the moving part 19d moves only half of the rotational movement distance around the pulley.
9 times, making it possible to double the track density compared to the conventional embodiment.
さらに第５図、第４図に示す実施例においては第２図の
薄板固定部１８の位置Ｋ、第２の原動機と直結する第２
のプーリ２１１−置き、第１のプーリ１２と同様にその
周囲に薄板１１を巻きつけ相互に交差して前述の取付部
１４を包絡する部分につながっている。Furthermore, in the embodiment shown in FIGS. 5 and 4, the position K of the thin plate fixing part 18 in FIG.
Similarly to the first pulley 12, the thin plate 11 is wrapped around the pulley 211, and the thin plates 11 intersect with each other and are connected to the portion surrounding the aforementioned mounting portion 14.
この実施例によれば、２つの原動機を同じ方向に回転さ
せ九とき、そのブーりの半径、またＦｉ２５ 一
つの原動機の回転角＋１’をわずかにｆ＋でおけば、そ
の差に相当する距離だけ移動部＋ ９ ＶＪ Ｉ＆進運
動を行い、その結果、極めて微小な送りが実現できる。According to this embodiment, when two prime movers are rotated in the same direction, the radius of their boob is also Fi25.If the rotation angle +1' of one prime mover is slightly f+, then the distance corresponding to the difference is Moving part + 9 VJ I & advance movement is performed, and as a result, extremely minute feed can be achieved.
また、２つのプーリの半径、また＃−ｉ２つの原動機の
回転角度を２倍ｔ【いし数倍１［１”Ｒ＊でおけば一方
の原動機で粗製１、すなわち数トラ・ツク毎にアクセス
し、他方原動機で微動、すｔ［わち数トラ、ツクの範囲
内のアクセスを行えば、トラック数の増大を計れるとと
もに、１トラツクずつ送ってゆく場合に比べて数倍の高
速アクセスが可能となる。Also, if the radius of the two pulleys and the rotation angle of the two prime movers are set to 2 times t [or several times 1 [1''R*], one prime mover can access the rough 1, that is, every few hours. , On the other hand, if the prime mover performs fine movement, access within the range of a few tracks, it is possible to increase the number of tracks, and it is possible to access at a speed several times higher than when sending tracks one track at a time. Become.
〔効果〕
以上述べたよ’ＩＩｃ、本発明によれば従来の実施例の
特長である簡素性、高精闇を失うことなく、トラ９り密
度の飛躍的な向−Ｅｌ−計ることができる。[Effects] As stated above, according to the present invention, a dramatic increase in density can be achieved without losing the simplicity and high precision that are the features of conventional embodiments.
ざらに第２の実施例に示し念ごとく、２つの原動機を用
い、一方のブーり半径もしくけ回転角ｉを大きくとるこ
とＫよって、従来不可能であった多トラツクのアクセス
を高速で行うことが可能となり、磁気ディスク駆動装置
の配録密度の向トに大−６＝
きｌ「効果を発揮する。As roughly shown in the second embodiment, by using two prime movers and setting the radius and rotation angle i of one large, it is possible to access multiple tracks at high speed, which was previously impossible. This makes it possible to increase the recording density of magnetic disk drives by a large amount.
第１回目、従来の代表的実施例を示す斜視図である。
第２図ｄ本発明の一実施例の断面図であり、第３図、第
４図は他の実施例の断面図、斜視図である。
１・・・・・・原動機
２．１２．２１・・・・・・プーリ
５．１１・・・・・・薄板
６．１９・・・・・・アクセス機構移動部以 上
出願人 株式会社 諏訪精工台
代理人 弁理士 最上 務
第１区
第３図
し１１６
第４億FIG. 1 is a first perspective view showing a conventional typical embodiment. FIG. 2d is a sectional view of one embodiment of the present invention, and FIGS. 3 and 4 are sectional views and perspective views of other embodiments. 1... Prime mover 2.12.21... Pulley 5.11... Thin plate 6.19... Access mechanism moving part and above Applicant Suwa Co., Ltd. Seikodai Agent Patent Attorney Mogami 116th 4th Bn., 3rd Ward, 1st Ward
Claims (3)
構を有する磁気ディスク駆動装置において、その一部分
を交差して該原動機出力軸あるいけ出力軸に設けられた
プーリに周回・密着せしめ、かつその一点が出力軸また
はブーＩＪ−に固定され、残余部をもってアクセス機構
移動部に設けられた取付部を包絡し、該移動部忙対して
該原動機とけ反対側に位置する一点が装置非移動部に固
定された、円環状で奇形断面をもつ薄板を有するヘッド
アクセス機ＩＩを特徴とする磁気ディスク駆動装置。(1) In a magnetic disk drive having a head access mechanism using a rotation form motor as a drive source, a part of the head access mechanism intersects with the motor output shaft or a pulley provided on the drive output shaft, and the drive rotates in close contact with the output shaft of the motor, and one point thereof. is fixed to the output shaft or boot IJ-, the remaining part wraps around the attachment part provided on the moving part of the access mechanism, and a point located on the opposite side of the moving part to the prime mover is fixed to the non-moving part of the device. A magnetic disk drive device characterized by a head access device II having a thin plate having an annular shape and an irregular cross section.
機構移動部を包絡する薄板を該移動部に設けられた２つ
以上のローラで支持し、少なくともその一つを弾性支持
することＫよって薄板に張力全加えることを特徴とする
磁気ディスク駆動装置。(2) In claim (1), the thin plate surrounding the access mechanism moving part is supported by two or more rollers provided on the moving part, and at least one of them is elastically supported. Therefore, a magnetic disk drive device is characterized in that the entire tension is applied to the thin plate.
薄機の一点を装置非移動部に固定することに替憂、填２
の回転形態動機を設け、第１の呻＊Ｉ＋磯と同様Ｋ。 設薄板を該原動機出力軸あろいＶｔ出力軸に設けらｈた
ブーりに周回・密着せしめ５２つの原ＩＩＩＩ機全同−
回転方向に異なる速Ｉｆ Ｖけ進角で回転濾せること全
特徴とする磁猪ディスク駆動装＃。(3) Claim No. (1) J? With iIK, I was worried about fixing one point of the dth thin machine to the non-moving part of the device.
A rotation form motive is provided, and the first groan *I + K as well as Iso. All 52 original III machines were assembled by placing the thin plate around and closely contacting the holes provided on the motor output shafts and Vt output shafts.
A magnetic boar disk drive device # that is characterized by being able to rotate at different speeds If V advance angles in the rotation direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9157384A JPS60236170A (en) | 1984-05-08 | 1984-05-08 | Magnetic disc driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9157384A JPS60236170A (en) | 1984-05-08 | 1984-05-08 | Magnetic disc driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60236170A true JPS60236170A (en) | 1985-11-22 |
Family
ID=14030268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9157384A Pending JPS60236170A (en) | 1984-05-08 | 1984-05-08 | Magnetic disc driving device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60236170A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0219116A2 (en) * | 1985-10-17 | 1987-04-22 | Mitsubishi Denki Kabushiki Kaisha | Positioning device for a read/write head |
-
1984
- 1984-05-08 JP JP9157384A patent/JPS60236170A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0219116A2 (en) * | 1985-10-17 | 1987-04-22 | Mitsubishi Denki Kabushiki Kaisha | Positioning device for a read/write head |
| US4837650A (en) * | 1985-10-17 | 1989-06-06 | Mitsubishi Denki Kabushiki Kaisha | Head positioning device |
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