JPH057792B2 - - Google Patents
Info
- Publication number
- JPH057792B2 JPH057792B2 JP59245614A JP24561484A JPH057792B2 JP H057792 B2 JPH057792 B2 JP H057792B2 JP 59245614 A JP59245614 A JP 59245614A JP 24561484 A JP24561484 A JP 24561484A JP H057792 B2 JPH057792 B2 JP H057792B2
- Authority
- JP
- Japan
- Prior art keywords
- carriage
- moving
- pulley
- head
- steel
- 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
- 229910000831 Steel Inorganic materials 0.000 description 29
- 239000010959 steel Substances 0.000 description 29
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
Landscapes
- Moving Of Heads (AREA)
Description
【発明の詳細な説明】
（従来分野）
本発明はヘツドを所定の方向へ移動させる機構
を備えたヘツド移動装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Prior Art) The present invention relates to a head moving device equipped with a mechanism for moving a head in a predetermined direction.
（従来技術）
この種のヘツド移動装置として例えば磁気デイ
スク装置に用いる磁気ヘツド駆動機構、即ち磁気
記録媒体としての磁気デイスクに磁気ヘツドを摺
接して情報の記録・再生を行う磁気デイスク装置
の磁気ヘツド駆動機構として広く用いられてい
る。その従来の構成は第１図ａ〜ｃおよび第２図
に示すようになつている。(Prior Art) This type of head moving device includes, for example, a magnetic head drive mechanism used in a magnetic disk device, that is, a magnetic head of a magnetic disk device that records and reproduces information by sliding the magnetic head into sliding contact with a magnetic disk as a magnetic recording medium. Widely used as a drive mechanism. Its conventional structure is as shown in FIGS. 1a-c and 2.
第１，２図において符号１で示すものはガイド
G1，G2に案内されるキヤリツジであり、ヘツド
アームARを介して磁気ヘツドＨを搭載してお
り、磁気デイスク装置内に第１図ａ中矢印Ａ，Ｂ
方向に移動自在に取り付けられている。キヤリツ
ジ１の一方の側壁１ａは略一直線状に形成されて
いるが、両端部は突出して形成されている。その
側壁１ａの近傍には駆動源である不図示のステツ
ピングモータに軸２ａを介して連結されたプーリ
２が配置されている。 In Figures 1 and 2, the reference numeral 1 indicates a guide.
This is a carriage that is guided by G 1 and G 2 , and is equipped with a magnetic head H via a head arm AR.
It is attached so that it can be moved in any direction. One side wall 1a of the carriage 1 is formed into a substantially straight line, but both ends are formed to protrude. A pulley 2 connected via a shaft 2a to a stepping motor (not shown) serving as a driving source is arranged near the side wall 1a.
このプーリ２とキヤリツジ１との間に、スチー
ルベルト３ａ〜３ｃがキヤリツジ１の側壁１ａに
沿つて上下に間隔をおいて互いに略平行に張架さ
れている。上下のスチールベルト３ａ，３ｃはプ
ーリ２に巻回され、その一端は側壁１ａに隣接す
る側壁１ｂの端部に取り付けビス４を介して固定
され、他端はプーリ２の円周面上に取り付けビス
５を介して固定されている。取り付けビス４には
基部が直線状であり先端部が円弧状に湾曲した長
方形の一枚板状の板バネ６の一端が固定されてお
り、スチールベルト３ａ，３ｃはこの板バネ６に
巻回して張架されている。この板バネ６の付勢力
による張力でスチールベルト３ａ，３ｃは側壁１
ａに沿つて略一直線状に引張られている。真中の
スチールベルト３ｂもプーリ２に巻回されてお
り、このプーリ上では分岐されたスチールベルト
３ａ，３ｃと一体になつている。そして、スチー
ルベルト３ｂは、プーリ２の取り付けビス５と側
壁１ａの一方の端部に固定された取り付けビス７
との間に張架されている。ここでプーリ２を介し
て板バネ６の付勢力によるスチールベルト３ａ，
３ｃの張力がスチールベルト３ｂにかかり、それ
によりスチールベルト３ｂは略一直線状に引張ら
れる。 Between the pulley 2 and the carriage 1, steel belts 3a to 3c are stretched along the side wall 1a of the carriage 1, vertically spaced from each other and substantially parallel to each other. The upper and lower steel belts 3a, 3c are wound around the pulley 2, one end of which is fixed to the end of the side wall 1b adjacent to the side wall 1a via a mounting screw 4, and the other end is mounted on the circumferential surface of the pulley 2. It is fixed via screws 5. One end of a rectangular plate spring 6 having a linear base and an arcuate tip is fixed to the mounting screw 4, and the steel belts 3a and 3c are wound around this plate spring 6. It is strung up. The steel belts 3a and 3c are attached to the side wall 1 by tension due to the urging force of the leaf spring 6.
It is stretched in a substantially straight line along a. The middle steel belt 3b is also wound around the pulley 2, and on this pulley it is integrated with branched steel belts 3a and 3c. The steel belt 3b is attached to a mounting screw 5 of the pulley 2 and a mounting screw 7 fixed to one end of the side wall 1a.
It is strung between. Here, the steel belt 3a is driven by the urging force of the leaf spring 6 via the pulley 2,
A tension of 3c is applied to the steel belt 3b, thereby pulling the steel belt 3b substantially in a straight line.
磁気ヘツドの駆動時には不図示のステツピング
モータの駆動により軸２ａを介してプーリ２が第
１図ａの中時計方向または反時計方向に回転す
る。時計方向に回転するとスチールベルト３ｂが
プーリ２に巻回され、分岐しているスチールベル
ト３ａ，３ｃが巻きほどかれることによりキヤリ
ツジ１は矢印Ａ方向に引張られて移動する。また
反時計方向に回転すると分岐されたスチールベル
ト３ａ，３ｃがプーリ２に巻回され、スチールベ
ルト３ｂが巻きほどかれることによりキヤリツジ
１は矢印Ｂ方向に引張られて移動する。キヤリツ
ジ１の移動に従つて不図示の磁気ヘツドは矢印Ａ
方向またはＢ方向に移送される。 When the magnetic head is driven, a stepping motor (not shown) is driven to rotate the pulley 2 via the shaft 2a in the clockwise or counterclockwise direction in FIG. 1a. When rotated clockwise, the steel belt 3b is wound around the pulley 2, and the branched steel belts 3a and 3c are unwound, so that the carriage 1 is pulled and moved in the direction of arrow A. Further, when the belt rotates counterclockwise, the branched steel belts 3a and 3c are wound around the pulley 2, and the steel belt 3b is unwound, so that the carriage 1 is pulled and moved in the direction of arrow B. As the carriage 1 moves, the magnetic head (not shown) moves in the direction of arrow A.
direction or B direction.
以上の構成においては、湾曲した板バネ６の付
勢力によつて分岐されたスチールベルト３ａ，３
ｃ及びプーリ２を介してスチールベルト３ｂを引
張つている。それによりスチールベルトａと３ｃ
をたるみの無い状態で略一直線状に張架してい
る。 In the above configuration, the steel belts 3a, 3 are branched by the biasing force of the curved leaf spring 6.
The steel belt 3b is pulled through the pulley 2 and the pulley 2. Therefore, steel belts a and 3c
is stretched in a substantially straight line with no slack.
このように従来の構成では、スチールベルト３
ａ，３ｃを引張るために板バネ６なる別部材が必
要であり、又、前記板バネ６のキヤリツジ１に対
する取付位置精度も比較的高く要求されるため組
立工数も多くコスト的にも高いという欠点があ
る。 In this way, in the conventional configuration, the steel belt 3
A separate member, the leaf spring 6, is required to pull the parts a and 3c, and relatively high accuracy is required for the mounting position of the leaf spring 6 to the carriage 1, so the disadvantage is that the number of assembly steps is large and the cost is high. There is.
（目 的）
本発明は以上の欠点に鑑みてなされたもので、
ヘツド移動装置の張力付与部における構成を簡単
にして、かつ、製造コストを安くし、しかもヘツ
ドの駆動時に高い位置決め精度が得られるヘツド
移動装置を提供する事を目的とする。(Purpose) The present invention was made in view of the above drawbacks, and
To provide a head moving device which simplifies the structure of a tension applying part of the head moving device, reduces manufacturing cost, and provides high positioning accuracy when driving the head.
（実施例）
本発明に係る実施例の構成を第３図ａ〜ｃおよ
び第４図に示す。(Example) The configuration of an example according to the present invention is shown in FIGS. 3a to 3c and FIG. 4.
第１，２図において示したガイドG1，G2、ヘ
ツドアームAR、磁気ヘツドＨは第３，４図にお
いても同様に用いるものであるが、重複を避ける
ために省略した。 The guides G 1 and G 2 , head arm AR, and magnetic head H shown in FIGS. 1 and 2 are also used in FIGS. 3 and 4, but have been omitted to avoid duplication.
第３図ａ〜ｃにおいて、１′は本発明に係るキ
ヤリツジであり、不図示の磁気ヘツドを搭載する
と共に図の右寄りに溝１′ｃが設けられている。
その他第１図ａ〜ｃ、第２図と同一の部材には同
一の符号を付しその説明は省略する。 In FIGS. 3a to 3c, 1' is a carriage according to the present invention, which is equipped with a magnetic head (not shown) and is provided with a groove 1'c on the right side of the figure.
Other members that are the same as those in FIGS. 1a to 2c and 2 are designated by the same reference numerals, and their explanations will be omitted.
本実施例の構成は前述の従来構成と略同一であ
るが、スチールベルト３ａと３ｃを引張るための
方法が従来構成と異なる。つまり、本発明ではキ
ヤリツジ１′に前記溝１′ｃを形成する事により、
その端部１′ｄはスチールベルトの張力で矢印Ｃ
方向へ撓む弾性を持つことになる。 The configuration of this embodiment is substantially the same as the conventional configuration described above, but differs from the conventional configuration in the method for tensioning the steel belts 3a and 3c. That is, in the present invention, by forming the groove 1'c in the carriage 1',
Its end 1'd is moved by arrow C due to the tension of the steel belt.
It has the elasticity to bend in one direction.
スチールベルト３ａ〜３ｃの取り付けビス７の
中心から取り付けビス４の中心までの略直線的な
全長は、キヤリツジ１′の取り付けビス７の中心
から取り付けビス４の中心までの幾何学的な長さ
に対して若干小さく設定される。 The overall linear length from the center of the mounting screw 7 of the steel belts 3a to 3c to the center of the mounting screw 4 is the geometric length from the center of the mounting screw 7 of the carriage 1' to the center of the mounting screw 4. It is set slightly smaller than that.
この状態で、スチールベルト３ａ〜３ｃ（伝達
手段）をキヤリツジ１′（移動手段）及びプーリ
２（駆動手段）へ取り付けると、キヤリツジ１′
の端部１′ｄ（張力付与部）は僅か乍ら矢印Ｃ方向
へ撓んだ状態となり、その弾性力でスチールベル
ト３ａ，３ｃ及びプーリ２を介してスチールベル
ト３ｂを引張ることになる。それによりスチール
ベルト３ａ〜３ｃはたるみの無い状態で略一直線
状に張架される。 In this state, when the steel belts 3a to 3c (transmission means) are attached to the carriage 1' (transfer means) and the pulley 2 (drive means), the carriage 1'
The end portion 1'd (tension applying portion) is slightly bent in the direction of arrow C, and its elastic force pulls the steel belt 3b via the steel belts 3a, 3c and the pulley 2. Thereby, the steel belts 3a to 3c are stretched substantially in a straight line without slack.
以上のように第３，４図に示した実施例におい
ては、溝１′ｃの形成によつてスチールベルト張
力を付与したものである。 As described above, in the embodiments shown in FIGS. 3 and 4, tension is applied to the steel belt by forming the grooves 1'c.
（効 果）
以上説明したように、キヤリツジの少なくとも
一部を張力付加部とするために例えば溝を設け、
その端部に弾性をもたせた構成によつて従来使用
していた様な板バネが不要となると共に、キヤリ
ツジに対するスチールベルトの取り付けも容易と
なり、コストダウンをすることが可能となつた。
また、スチールベルトの長さが短くてすみ、板バ
ネのような別部材をキヤリツジに取り付ける必要
がないからヘツドの駆動時に高い位置決め精度を
得る事ができる。(Effects) As explained above, in order to make at least a part of the carriage a tension applying section, for example, a groove is provided,
Due to its elasticity at the end, there is no need for the conventionally used plate springs, and the steel belt can be easily attached to the carriage, making it possible to reduce costs.
Furthermore, since the length of the steel belt is short and there is no need to attach a separate member such as a leaf spring to the carriage, high positioning accuracy can be achieved when driving the head.
第１図ａ〜ｃは夫々従来の磁気ヘツド駆動機構
の要部の平面図と正面図及び側面図、第２図は従
来の磁気ヘツド駆動機構の一部を示す斜視図、第
３図ａ〜ｃは本発明によるヘツド移動装置の実施
例を示す要部の平面図と正面図及び側面図、第４
図は本発明によるヘツド移動装置の一部を示す斜
視図である。
１……キヤリツジ、１′ｃ……溝、１′ｄ……端
部、２……プーリ、３ａ〜３ｃ……スチールベル
ト、４，５，７……取り付けビス。
1a to 1c are a plan view, a front view, and a side view of the main parts of a conventional magnetic head drive mechanism, respectively. FIG. 2 is a perspective view showing a part of a conventional magnetic head drive mechanism, and FIGS. 3a to 3 c is a plan view, a front view, and a side view of essential parts showing an embodiment of the head moving device according to the present invention;
The figure is a perspective view showing a part of the head moving device according to the present invention. 1... Carriage, 1'c... Groove, 1'd... End, 2... Pulley, 3a to 3c... Steel belt, 4, 5, 7... Mounting screw.
Claims (1)
動手段と、前記移動手段を移動するための駆動源
となる駆動手段と、前記駆動手段から受けた駆動
力を前記移動手段に伝達する伝達手段とを有する
ヘツド移動装置において、前記移動手段の少なく
とも一部を溝で部分的に分割して該移動手段の一
部が弾性体として機能する構成とし、前記伝達手
段に張力を付与するための張力付与部としたこと
を特徴とするヘツド移動装置。1 A moving means for attaching a head and moving it in a predetermined direction, a driving means serving as a drive source for moving the moving means, and a transmitting means for transmitting the driving force received from the driving means to the moving means. In the head moving device, at least a part of the moving means is partially divided by a groove so that a part of the moving means functions as an elastic body, and a tension applying part for applying tension to the transmitting means. A head moving device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24561484A JPS61123072A (en) | 1984-11-20 | 1984-11-20 | Head transferring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24561484A JPS61123072A (en) | 1984-11-20 | 1984-11-20 | Head transferring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61123072A JPS61123072A (en) | 1986-06-10 |
| JPH057792B2 true JPH057792B2 (en) | 1993-01-29 |
Family
ID=17136318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24561484A Granted JPS61123072A (en) | 1984-11-20 | 1984-11-20 | Head transferring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61123072A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5928864B2 (en) * | 1971-08-24 | 1984-07-16 | エフ ホフマン ラ ロシュ ウント コンパニ− アクチェン ゲゼルシャフト | Barbiturate antigen and antibodies specific to it |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5928864U (en) * | 1982-08-13 | 1984-02-22 | アルプス電気株式会社 | Carriage drive mechanism of magnetic disk device |
-
1984
- 1984-11-20 JP JP24561484A patent/JPS61123072A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5928864B2 (en) * | 1971-08-24 | 1984-07-16 | エフ ホフマン ラ ロシュ ウント コンパニ− アクチェン ゲゼルシャフト | Barbiturate antigen and antibodies specific to it |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61123072A (en) | 1986-06-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |