JPS61123072A - Head transferring device - Google Patents

Head transferring device

Info

Publication number
JPS61123072A
JPS61123072A JP24561484A JP24561484A JPS61123072A JP S61123072 A JPS61123072 A JP S61123072A JP 24561484 A JP24561484 A JP 24561484A JP 24561484 A JP24561484 A JP 24561484A JP S61123072 A JPS61123072 A JP S61123072A
Authority
JP
Japan
Prior art keywords
carriage
steel
head
pulley
magnetic head
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
Application number
JP24561484A
Other languages
Japanese (ja)
Other versions
JPH057792B2 (en
Inventor
Akio Hoshi
昭夫 星
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Electronics Inc
Original Assignee
Canon Electronics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Canon Electronics Inc filed Critical Canon Electronics Inc
Priority to JP24561484A priority Critical patent/JPS61123072A/en
Publication of JPS61123072A publication Critical patent/JPS61123072A/en
Publication of JPH057792B2 publication Critical patent/JPH057792B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48Disposition 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
    • G11B5/54Disposition 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
    • G11B5/55Track change, selection or acquisition by displacement of the head

Landscapes

  • Moving Of Heads (AREA)

Abstract

PURPOSE:To simplify the structure, and to reduce the cost and to increase the accuracy of positioning at the time of head driving by providing a groove on a part of magnetic head carriage, giving elasticity to its edge and using it as tension application part. CONSTITUTION:A groove 1'c is made on a carriage 1' which mounts the magnetic head not shown in the figure, and when a steel belt 3a-3c (transmission means) are attached to carriage 1' and a pulley 2, the edge part 1'd (tension application part) of the carriage 1' moves slightly in the arrow C direction, and it pulls the steel belt 3b through the steel belts 3a, 3c and the pulley 2. Therefore, the belt 3a-3c is stretched straightly without sag. Since there is no necessity to attach other materials such as plate spring to the carriage, it is possible to obtain accurate positioning when the head drives.

Description

【発明の詳細な説明】 (技術分野) 本発明はヘッドを所定の方向へ移動させる機構を備えた
ヘッド移動装置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Technical Field) 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) この種のヘッド移動装置として例えば磁気ディスク装置
に用いる磁気ヘッド駆動機構、即ち磁気記録媒体として
の磁気ディスクに磁気ヘッドを摺接して情報の記録・再
生を行う磁気ディスク装置の磁気ヘッド駆動機構として
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図に示すようになっている。
(Prior art) This type of head moving device is, 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. The conventional configuration is shown in Figure 1(a)~
(C) and as shown in FIG.

第1,2図において符号lで示すものはガイドG、、G
2に案内されるキャリッジであり、ヘッドアームARを
介して磁気ヘッドHを搭載しており、磁気ディスク装置
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。
In Figs. 1 and 2, the reference numeral l indicates guides G, , G.
The magnetic head H is mounted on a magnetic head H via a head arm AR, and is mounted within a magnetic disk device so as to be movable in the directions of arrows A and B in FIG. 1(a).

キャリッジ1の一方の側壁1aは略−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ッピングモー
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。
One side wall 1a of the carriage 1 is formed into a substantially straight line, but both ends thereof 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とキャリッジ1との間に、スチールベルト
3a〜3Cがキャリッジ1の側壁1aに沿って上下に間
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)3a、3cはブー92に巻回され、その一端
は側壁1aに隣接する側壁1bの端部に取り伺はビス4
を介して固定され、他端はプーリ2の円周面」二に取り
4=Jけビス5を介して固定されている。取り付はビス
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l−3a 、 3 c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l−3a 、 3 cは側壁ら 1aに沿って略−直線状に引張されている。真中のスチ
ールベル)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
になっている。そして、スチールベルト3bは、プーリ
2の取り付はビス5と側壁1aの一方の端部に固定され
た取り利はビス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)3
a。
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 bells 3a and 3c are wound around a boot 92, and one end of the bell is attached to the end of the side wall 1b adjacent to the side wall 1a with a screw 4.
The other end is fixed to the circumferential surface of the pulley 2 via a screw 5. For installation, one end of a rectangular plate spring 6 with a linear base and an arcuate tip is fixed to the screw 4, and the steel bells L-3a and 3c are attached to this plate. It is wound around a spring 6 and stretched. The steel bells 1-3a and 3c are pulled approximately linearly along the side walls 1a by the tension caused by the biasing force of the leaf spring 6. The middle steel bell) 3b is also wound around the pulley 2, and on this pulley it is integrated with the branched steel belts 3a and 3c. The steel belt 3b is stretched between a screw 5 for attaching the pulley 2 and a screw 7 fixed to one end of the side wall 1a. Here, the steel bell is applied by the urging force of the leaf spring 6 via the pulley 2) 3
a.

3cの張力がスチールベル)3bにかかり、それにより
スチールベル)3bは略−直線状に引張べれる。
A tension force of 3c is applied to the steel bell 3b, which causes the steel bell 3b to be pulled in a substantially straight line.

磁気ヘッドの駆動時には不図示のステッピングモータの
駆動により軸2aを介してプーリ2が第1図(a)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
ているスチールへルl−3a 、 3 cが巻きほどか
れることによりギャラ リッジlは矢印A方向に引張☆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)3a、3
c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ャリッら ジ1は矢印B方向に引張されて移動する。キャリッジl
の移動に従って不図示の磁気ヘッドは矢印A方向または
B方向に移送される。
When the magnetic head is driven, the pulley 2 is rotated clockwise or counterclockwise in FIG. 1(a) via the shaft 2a by driving a stepping motor (not shown). When rotated clockwise, the steel belt 3b is wound around the pulley 2, and the branched steel hems 1-3a and 3c are unwound, so that the gallery ridge 1 is pulled and moved in the direction of arrow A. Also, when rotated counterclockwise, the branched steel bell) 3a, 3
c is 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. carriage l
According to the movement of the magnetic head (not shown), the magnetic head (not shown) is moved in the direction of arrow A or arrow B.

以上の構成においては、湾曲した板バネ6の旧勢力によ
って分岐されたスチールベルl−3a 。
In the above configuration, the steel bell l-3a is branched by the force of the curved leaf spring 6.

3C及びプーリ2を介してスチールベル)3bを引張上
ている。それによりスチールベルト3aと30をたるみ
の無い状態で略−直線状に張架している。
3C and pulley 2 to pull up the steel bell) 3b. As a result, the steel belts 3a and 30 are stretched substantially linearly without slack.

このように従来の構成では、スチールベルト3a〜3c
を引張するために板バネ6なる別部材が必要であり、又
、前記板バネ6のキャリッジl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 belts 3a to 3c
A separate member called the leaf spring 6 is required to tension the plate spring 6, and relatively high accuracy is required for the mounting position of the leaf spring 6 with respect to the carriage l, so there is a drawback that the number of assembly steps is large and the cost is high. .

(目  的) 本発明は以上の欠点に鑑みてなされたもので、ヘッド移
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、しかもヘッドの駆動時に高い位置
決め精度が得られるヘッド移動装置を提供する事を目的
とする。
(Objective) The present invention has been made in view of the above-mentioned drawbacks, and it simplifies the structure of the tension applying section of the head moving device, and
It is an object of the present invention to provide a head moving device that can reduce manufacturing costs and provide 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 structure of an example according to the present invention is shown in FIGS. 3(a) to (c) and FIG. 4.

第1.2図において示したガイドG、、G、、、ヘッド
アームAR,磁気ヘッド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, G, . . . , head arm AR, and magnetic head H shown in FIG. 1.2 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
ャリッジであり、不図示の磁気ヘッ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。その地温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. 3(a) to 3(C), 1' is a carriage according to the present invention, which mounts a magnetic head (not shown) and is provided with a groove 1'c on the right side of the figure. The soil temperature 1
Components that are the same as those in FIGS. (a) to (C) and FIG.

本実施例の構成は前述の従来構成と略同−であるが、ス
チールベル)3aと30を引張るための方法が従来構成
と異なる。つまり、本発明ではキャリッジ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 structure of this embodiment is substantially the same as the conventional structure described above, but differs from the conventional structure in the method for pulling the steel bells 3a and 30. That is, in the present invention, by forming the groove 1'c in the carriage 1', the end portion 1'd has the elasticity to bend in the direction of arrow C under the tension of the steel belt.

スチールベル)3a〜3cの取り付はビス7の中心から
取り付はビス4の中心までの略直線的な全長は、キャリ
ッジ1′の取り付はビス7の中心から取り付はビス4の
中心までの幾何学的な長さに対して若干小ざ〈設定され
る。
For installation of steel bells 3a to 3c, the approximately linear length from the center of screw 7 to the center of screw 4 is approximately the same as the length from the center of screw 4 for installation of carriage 1'. It is set slightly smaller than the geometric length up to.

この状態で、スチールベル)3a〜3c(伝達手段)を
キャリッジ1′(移動手段)及びプーリ2(駆動手段)
へ取り付けると、キャリッジ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−直
線状に張架される。
In this state, the steel bells) 3a to 3c (transmission means) are connected to the carriage 1' (transfer means) and the pulley 2 (drive means).
When the carriage 1' is attached to the steel belt 3b, the end part 1'd (tension applying part) of the carriage 1' is slightly bent in the direction of the arrow C, and its elastic force causes the steel belt 3b to be stretched through the steel belts 3a, 3c and the pulley 2. will be pulled. As a result, the steel belts 3a to 3c are stretched substantially linearly without slack.

尚、第3.4図に示した実施例においては、溝1’ c
の形成によってスチールベルト張力を付与したものであ
るが、本発明はこの実施例に限定されるものではなくて
キャリッジ自身が張力伺与機能を有すれば良いものであ
り、例えばキャリッジがゴム等の弾性体で構成されて膨
張力でスチールベルトに張力をイ]与する構成も包含す
るものである。
In the embodiment shown in Fig. 3.4, groove 1' c
However, the present invention is not limited to this embodiment, and it is sufficient that the carriage itself has a tension applying function. For example, the carriage may be made of rubber or the like. It also includes a structure that is made of an elastic body and applies tension to the steel belt by its expansion force.

(効  果) 以−1−説明したように、キャリッ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って従来使用していた様な板バ
ネが不要となると共に、キャリッ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
が可能となった。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ャリッジに取り付ける
必要がないからヘッ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 in 1-1 below, a groove is provided in at least a part of the carriage to serve as a tension-applying part, and the ends of the groove are made elastic. This eliminates the need for steel belts, and also makes it easier to attach the steel belt to the carriage, making it possible to reduce costs. In addition, 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, so high positioning accuracy can be achieved when driving the head.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図(a)〜(C)は夫々従来の磁気ヘッド駆動機構
の要部の平面図と正面図及び側面図、第2図は従来の磁
気ヘッド駆動機構の一部を示す斜視図、 第3図(a)〜(C)は本発明によるヘッド移動装置の
実施例を示す要部の平面図と正面図及び側面図、第4図
は本発明によるヘッド移動装置の一部を示す斜視図であ
る。
1(a) to 1(C) are respectively a plan view, a front view, and a side view of the main parts of a conventional magnetic head drive mechanism, and FIG. 2 is a perspective view showing a part of the conventional magnetic head drive mechanism. 3(a) to (C) are 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, and FIG. 4 is a perspective view showing a part of the head moving device according to the present invention. It is.

Claims (2)

【特許請求の範囲】[Claims] (1)ヘッドを取付けて所定の方向へ移動させる移動手
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ッド移動装置において
、前記移動手段の少なくとも一部を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事を特徴とするヘッ
ド移動装置。
(1) A moving means for attaching the head and moving it in a predetermined direction, a driving means serving as a driving source for moving the moving means, and a transmitting means for transmitting the driving force received from the driving means to the moving means. 1. A head moving device comprising: at least a portion of said moving means as a tension applying section for applying tension to said transmission means.
(2)特許請求の範囲(1)において、前記移動手段の
張力付与部は該移動手段を溝で部分的に分割して形成し
た事を特徴とするヘッド移動装置。
(2) The head moving device according to claim (1), wherein the tension applying portion of the moving means is formed by partially dividing the moving means with a groove.
JP24561484A 1984-11-20 1984-11-20 Head transferring device Granted JPS61123072A (en)

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 true JPS61123072A (en) 1986-06-10
JPH057792B2 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)

* Cited by examiner, † Cited by third party
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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3766162A (en) * 1971-08-24 1973-10-16 Hoffmann La Roche Barbituric acid antigens and antibodies specific therefor

Patent Citations (1)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
JPH057792B2 (en) 1993-01-29

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