JPS6089879A - Load and unload mechanism of magnetic head for floppy disc - Google Patents

Load and unload mechanism of magnetic head for floppy disc

Info

Publication number
JPS6089879A
JPS6089879A JP19598783A JP19598783A JPS6089879A JP S6089879 A JPS6089879 A JP S6089879A JP 19598783 A JP19598783 A JP 19598783A JP 19598783 A JP19598783 A JP 19598783A JP S6089879 A JPS6089879 A JP S6089879A
Authority
JP
Japan
Prior art keywords
magnetic head
gimbal
piezoelectric element
thin film
conductive thin
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
Application number
JP19598783A
Other languages
Japanese (ja)
Inventor
Kunio Harada
邦男 原田
Yoshiyuki Hirano
義行 平野
Yosuke Seo
瀬尾　洋右
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP19598783A priority Critical patent/JPS6089879A/en
Publication of JPS6089879A publication Critical patent/JPS6089879A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE:To attain simplicity of mechanism, low power consumption, high speed and low noise by forming the load/unload mechanism of a magnetic head through the utilization of a deflection of a gimbal caused by a piezoelectric element. CONSTITUTION:The magnetic head 6 is fitted to one end of the gimbal 5 formed with a thin plate made of stainless steel and the other ened of the gimbal 5 is fixed to a head mobing mechanism 1. The piezoelectric element 2 vapor- posited with conductive thin film 3 is adhered on both faces. Wiring is applied to the piezoelectric element 2 so as to apply a voltage via a switch 4 and the conductive thin film 3. In closing the switch 4, the voltage is applied via the conductive thin film 3 to the piezoelectric element 2 and the piezoelectric element 2 is prolonged in facial direction, then a bent is caused to the gimbal 5. Thus, the magnetic head 6 fitted to a free end contacts the face of a floppy disc 7. The mechanism is simplified, and low power consumption, high speed and low noise are attained in this way.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は、７０ツビーデイスク用磁気ヘツドをロード・
アンロードする機構の簡素化、小形化、省エネ化、高速
化に好適な、フロッピーディスク用磁気ヘッドのロード
・アンロード機構に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention is directed to a magnetic head for a 70-inch disk.
The present invention relates to a loading/unloading mechanism for a magnetic head for a floppy disk, which is suitable for simplifying, downsizing, saving energy, and increasing the speed of the unloading mechanism.

〔発明の背景〕[Background of the invention]

従来のフロッピーディスク用磁気ヘッドは、ロード・ア
ンロードを行う時の駆動源として、電磁ソレノイドを用
いていた。そして、シャーシ上に固定されている電磁ソ
レノイドのカを、ヘッド移動機構によシ移動するヘッド
に伝えるために蔦また、フロッピーディスクの表側と裏
側にあるヘッドを同時に゛アクセスするために、カムや
リンクを用いた複雑な機構が必要であった。この方法に
よると次のような欠点がある。Conventional magnetic heads for floppy disks use electromagnetic solenoids as a driving source for loading and unloading. In order to transmit the force of the electromagnetic solenoid fixed on the chassis to the head that is moved by the head moving mechanism, a cam was used to simultaneously access the heads on the front and back sides of the floppy disk. A complex mechanism using links was required. This method has the following drawbacks.

１、［磁ソレノイド、カム、リンク等を用いた複雑な機
構を用いているため高価である。1. It is expensive because it uses a complicated mechanism using magnetic solenoids, cams, links, etc.

２．１と同様の理由により、装置の中を占めるロード・
アンロード機構の割合が犬きぐなシ、装置の小形化を阻
んでいる。For the same reason as 2.1, the load occupying the inside of the device
The proportion of the unloading mechanism is too small, which prevents miniaturization of the device.

３、電磁ソレノイドを用いているため、消費電力が大き
い。3. Power consumption is high because it uses an electromagnetic solenoid.

４．３と同様の理由によシ、応答速度が遅い。For the same reason as 4.3, the response speed is slow.

５．３と同様の理由により、アクセスする時の騒音が大
きい。For the same reason as 5.3, there is a lot of noise when accessing.

〔発明の目的〕[Purpose of the invention]

本発明の目的は、フロッピーディスクドライブ装置にお
いて、ロード・アンロード機構を簡素化し、小形化、低
消費電力化、高速化、低騒音化したフロッピーディスク
用磁気ヘッドのロード・アンロード機構を提供すること
にある。An object of the present invention is to provide a floppy disk magnetic head loading/unloading mechanism that simplifies the loading/unloading mechanism in a floppy disk drive device and has a smaller size, lower power consumption, higher speed, and lower noise. There is a particular thing.

〔発明の概要〕[Summary of the invention]

フロッピーディスクドライブ装置には、通常ディスク面
と磁気ヘッドを離してディスク面及び磁気ヘッドが消耗
しないようにし、データの読み書きを行う時にの尿ディ
スク面に磁気ヘッドを接触させるためのロード・アンロ
ード機構が必要である。この機構は従来電磁ソレノイド
とカムやリンクを組合わせた複雑な装置であった。これ
をピエゾ素子によるジンバルの反りを利用することによ
シネ要にした。Floppy disk drive devices usually have a load/unload mechanism that separates the disk surface from the magnetic head to prevent the disk surface and magnetic head from being worn out, and brings the magnetic head into contact with the disk surface when reading or writing data. is necessary. This mechanism has traditionally been a complex device combining electromagnetic solenoids, cams, and links. This was made possible by utilizing the warpage of the gimbal caused by the piezo element.

〔発明の実施例〕[Embodiments of the invention]

以下、本発明の一実施例を第１図、第２図によｐ説明す
る。　□ 第工図、第、２図は本発明の一実施例になるフロッピー
ディスク用磁気ヘッドのロニド・アンロード機構の動作
原理図である。磁気ヘッド６はステンレス製の薄い板で
作られたジンバル５の一端に取付けられており、ジンバ
ル５の他端はヘッド移動機ｍ１に固定されている。ジン
バル５の上面には、両面に導電性薄膜３が蒸着されたピ
エゾ素子２が張り付けられている。ピエゾ素子２には、
スイッチ４、導電性薄膜３を介して電圧が印加されるよ
うに配線しである。An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. □ Figures 1, 2 and 2 are diagrams of the operating principle of a ronid unload mechanism of a magnetic head for a floppy disk according to an embodiment of the present invention. The magnetic head 6 is attached to one end of a gimbal 5 made of a thin plate made of stainless steel, and the other end of the gimbal 5 is fixed to a head moving machine m1. A piezo element 2 having conductive thin films 3 deposited on both sides is attached to the upper surface of the gimbal 5. Piezo element 2 has
The wiring is such that a voltage is applied via the switch 4 and the conductive thin film 3.

第１図は通常の状態を示す。スイッチ４は開いておシ、
ピエゾ素子２には電圧が印加されず、磁気ヘッド６はフ
ロッピーディスク７かられずかなすきま９をあけて離れ
ている。FIG. 1 shows the normal situation. Switch 4 is open.
No voltage is applied to the piezo element 2, and the magnetic head 6 is separated from the floppy disk 7 by a small gap 9.

第２図は、７０ツビーデイスク７の面に磁気ヘッド６を
接触させ、データの読み書きを行うためにスイッチ４を
閉じた状態を示す。スイッチ４を閉じると、ピエゾ素子
２には導電性薄膜３を介して電圧が印加される。すると
ピエゾ素子２は面方向に伸びようとするが、片面がジン
バル５で押えられているため、バイメタルと同じ原理で
反る。FIG. 2 shows a state in which the magnetic head 6 is brought into contact with the surface of the 70-tube disk 7 and the switch 4 is closed in order to read and write data. When the switch 4 is closed, a voltage is applied to the piezo element 2 via the conductive thin film 3. Then, the piezo element 2 tries to extend in the plane direction, but since one side is held down by the gimbal 5, it warps on the same principle as a bimetal.

ジンバル５はピエゾ素子２に習って反り、ヘット移動機
構１に固定されていないフリーな端部に取り付けられて
いる磁気ヘッド６は、フロンビーディスク７の面に接触
し７、データの絖み書きができる状態になる。ただし、
磁気ヘッド６がフロッピーディスク７に接触するまでの
移動ストロークである第１図に示すわずかなすきま９は
、本発明によれば１μｍ以下の量で十分であるため、リ
ンク（ル５は第２図のように極端に反る必要はなく、実
際にはピエゾ素子２の反シは、磁気ヘッド６がフロッピ
ーディスク７に接触する時の圧力として作用する。。The gimbal 5 curves like the piezo element 2, and the magnetic head 6 attached to the free end that is not fixed to the head moving mechanism 1 contacts the surface of the Fronby disk 7 and writes data. be able to do so. however,
According to the present invention, a slight gap 9 of 1 μm or less is sufficient for the movement stroke of the magnetic head 6 until it comes into contact with the floppy disk 7 shown in FIG. It is not necessary that the piezo element 2 is extremely warped as shown in FIG.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、電磁ソレノイドや、カム、リンク等を
用いた複雑な機構が不要になるので、次のような効果が
ある。According to the present invention, a complicated mechanism using an electromagnetic solenoid, a cam, a link, etc. is not required, so the following effects can be obtained.

１、従来のフロッピーディスクドライブ装置の主な電力
消費源であった電磁ソレノイドが、原塊的には電力を消
費しないピエゾ素子に取って代わるので消費電力が大幅
に減少する。1. The electromagnetic solenoid, which was the main power consumption source of conventional floppy disk drive devices, is replaced with a piezo element that does not consume power in its raw form, so power consumption is significantly reduced.

２、カムやリンク等を用いた複雑な機構が不要になるの
で、装置・′が小形化される。2. Since a complicated mechanism using cams, links, etc. is not required, the device can be made smaller.

３゜電磁ソレノイドの代９にピエゾ素子を用いているた
め、応答速度が早くなる。Since a piezo element is used in place 9 of the 3° electromagnetic solenoid, the response speed is faster.

４．３と同様の理由により、アクセス時の騒音が小さく
なる。For the same reason as 4.3, the noise during access is reduced.

５、応答速度が早いため、フロッピーディスクの表側と
裏側の磁気ヘッドが、電気的な制御のみて同時にアクセ
スできる。5. Because the response speed is fast, the magnetic heads on the front and back sides of the floppy disk can be accessed simultaneously using only electrical control.

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

第１図、第２図は、本発明によるフロッピーディスク用
磁気ヘッドのロード・アンロード機構の一例を示す側断
面図である。　′1 and 2 are side sectional views showing an example of a loading/unloading mechanism of a magnetic head for a floppy disk according to the present invention. ′

Claims (1)

【特許請求の範囲】[Claims] 磁気ヘッド部と、それを保持するジンバルよシ成るフロ
ッピーディスク用磁気ヘッドにおいて、ジンバル上にピ
エゾ素子を張シ付け、ピエゾ素子に電圧を印加した時の
伸びでジンバルを反らせ、ロード・アンロードを行うよ
うにしたフロッピーディスク用磁気ヘッドのロード・ア
ンロード機構。In a magnetic head for floppy disks, which consists of a magnetic head section and a gimbal that holds it, a piezo element is stretched over the gimbal, and the gimbal is warped by the elongation when voltage is applied to the piezo element to perform loading and unloading. A loading/unloading mechanism for a floppy disk magnetic head.
JP19598783A 1983-10-21 1983-10-21 Load and unload mechanism of magnetic head for floppy disc Pending JPS6089879A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19598783A JPS6089879A (en) 1983-10-21 1983-10-21 Load and unload mechanism of magnetic head for floppy disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19598783A JPS6089879A (en) 1983-10-21 1983-10-21 Load and unload mechanism of magnetic head for floppy disc

Publications (1)

Publication Number Publication Date
JPS6089879A true JPS6089879A (en) 1985-05-20

Family

ID=16350326

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19598783A Pending JPS6089879A (en) 1983-10-21 1983-10-21 Load and unload mechanism of magnetic head for floppy disc

Country Status (1)

Country Link
JP (1) JPS6089879A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0944041A1 (en) * 1996-02-20 1999-09-22 Myrica (UK) Limited Suspension arm with memory actuation element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0944041A1 (en) * 1996-02-20 1999-09-22 Myrica (UK) Limited Suspension arm with memory actuation element

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