JPS5954069A - Magnetic recording and reproducing device - Google Patents

Magnetic recording and reproducing device

Info

Publication number
JPS5954069A
JPS5954069A JP16438582A JP16438582A JPS5954069A JP S5954069 A JPS5954069 A JP S5954069A JP 16438582 A JP16438582 A JP 16438582A JP 16438582 A JP16438582 A JP 16438582A JP S5954069 A JPS5954069 A JP S5954069A
Authority
JP
Japan
Prior art keywords
magnetic
head
medium
spring
thin plate
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
JP16438582A
Other languages
Japanese (ja)
Inventor
Noboru Komiya
小宮　昇
Hiroshi Sakata
博 坂田
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP16438582A priority Critical patent/JPS5954069A/en
Publication of JPS5954069A publication Critical patent/JPS5954069A/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
    • G11B5/58—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 for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • 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

Abstract

PURPOSE:To improve the attachment accuracy of a magnetic head and to avoid giving damage to a magnetic medium, by supporting upper and lower magnetic heads with a nonmagnetic thin plate spring having a gimbal structure applying a cutting. CONSTITUTION:Cuttings 30-33 are formed symmetrically on the basis of a straight line X-X' to nonmagnetic thin plate springs 23 and 28 attached to upper and lower magnetic heads 21 and 27. At the same time, U-shaped cuttings 34-37 which are symmetrical centering on the line X-X' are formed at the inside of cuttings 30-33. Thus a springy gimbal structure is obtained. A head arm 24 is pressed from above by a spring 26. In such a constitution, the head 27 can oscillate up an down to the pressure of the head 21 and can follow naturally a magnetic medium. At the same time, the head 27 can be held parallel to a medium owing to the gimbal structure. As a result, the head attachment accuracy is improved. Furthermore the damage is avoided for the magnetic medium.

Description

【発明の詳細な説明】 産業上の利用分野 本発明はコンピュータ等に用いられる磁気記憶媒体の一
種であるフロッピーディスクを用いた磁気記録再生装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a magnetic recording and reproducing apparatus using a floppy disk, which is a type of magnetic storage medium used in computers and the like.

従来例の構成とその問題点 従来の両面フロッピーディスクを用いた磁気記録再生装
置は主に次の２つの装置が知られている。Conventional Structures and Problems The following two types of conventional magnetic recording and reproducing devices using double-sided floppy disks are known are known.

その１つは両面フレクシャ方式によるもので、第２　ペ
ージ １図に示すように、磁気ヘッド１と磁気ヘッド２とを互
いに対向させて設け、これら両磁気ヘッド１．２を夫々
板ばね３，４により支持し、両磁気ヘッド１，２を記録
再生用磁気媒体５〔フロッピーディスク〕の両面よシ圧
接するようになっている。One of them is a double-sided flexure system, in which a magnetic head 1 and a magnetic head 2 are provided facing each other as shown in Figure 2 on page 1, and these magnetic heads 1.2 are supported by plate springs 3 and 4, respectively. The magnetic heads 1 and 2 are pressed against both sides of a recording/reproducing magnetic medium 5 (floppy disk).

しかしながら」二辺のような構成では両磁気ヘッド１，
２を支持する板ばね３，４のバランス調整。However, in a two-sided configuration, both magnetic heads 1,
Balance adjustment of leaf springs 3 and 4 that support 2.

磁気媒体接触面上での磁気ヘッド１，２の姿勢調整２両
磁気ヘッド１，２の位置精度確保のだめの調整に高度の
技術を要する。Adjustment of the posture of the magnetic heads 1 and 2 on the magnetic medium contact surface 2. Adjustment to ensure the positional accuracy of both the magnetic heads 1 and 2 requires a high degree of skill.

また、板ばね３，４を夫々彎曲させて形成しておき、支
持部材６に板ばね３，４を取り付けたとき、磁気ヘッド
１，２が互いに圧接し合い板ばね３．４が真直ぐ互いに
平行になるように構成されている。従って磁気ヘッド１
，２の圧接力は彎曲した板ばね３，４が真直ぐ伸される
力であり、板ばね３及び４の彎曲率にばらつきがあると
磁気ヘッド１，２の圧接力はばらつく。さらに、板ばね
３．４を彎曲状態に形成するのはプレスによって３　ベ
ータ゛ 行なわれるため、細かな種々の条件によって板ばねの彎
曲率はばらつき易く、正確に彎曲させるのは困難である
。Further, when the leaf springs 3 and 4 are formed in a curved manner, and the leaf springs 3 and 4 are attached to the support member 6, the magnetic heads 1 and 2 are pressed against each other, and the leaf springs 3 and 4 are straight and parallel to each other. is configured to be. Therefore, magnetic head 1
, 2 is a force that straightens the curved leaf springs 3 and 4, and if the curvature of the leaf springs 3 and 4 varies, the pressure contact forces of the magnetic heads 1 and 2 will vary. Further, since the leaf spring 3.4 is formed into a curved state by a three-beta press, the curvature of the leaf spring tends to vary depending on various detailed conditions, and it is difficult to curve the leaf spring accurately.

従来の磁気記録再生装置のもう１つは第２図に示すよう
に、磁気ヘッド１１を保持し、記録再生用磁気媒体１２
〔フロッピーディヌク〕への追随機構を持ったジンバ／
ｌ／１３と、ジンバ／ｌ／１３を保持するためのへラド
アーム１４と、ヘッド１６を保持固定するだめのヘッド
支持台１６と、前記へラドアーム１４の上下動を可能に
させる板ばね１７を固定する押さえ板１８と、ヘッドア
ーム１４に上方よシ常に所定の加圧をするスプリング１
９とから構成されている。この構成によれば、上記第１
図で示した構成による欠点は解消されるものの、他面側
磁気ヘッド１５は磁気媒体１２に対する追随機構を持っ
ていないため、磁気媒体１２０反り。Another conventional magnetic recording and reproducing device, as shown in FIG.
Jimba with a tracking mechanism for [Floppy Dinuku]/
l/13, a helad arm 14 for holding the jimba/l/13, a head support stand 16 for holding and fixing the head 16, and a leaf spring 17 that allows the helad arm 14 to move up and down. and a spring 1 that applies a predetermined pressure upwardly to the head arm 14.
It consists of 9. According to this configuration, the first
Although the drawbacks of the configuration shown in the figure are eliminated, since the magnetic head 15 on the other side does not have a tracking mechanism for the magnetic medium 12, the magnetic medium 120 warps.

曲り又は装置の加工精度のばらつきを吸収するために他
面側磁気ヘッド１６は磁気媒体１２の水平向より０．５
１１Ｗ位突出させて取り付けられている。In order to absorb bending or variations in processing accuracy of the device, the magnetic head 16 on the other side is set at a height of 0.5 from the horizontal direction of the magnetic medium 12.
It is attached with about 11W protruding.

つまり磁気媒体１２は他面側磁気ヘッド１６に押されて
多少反り乍ら一面側磁気ヘッド１１と他面側磁気ヘッド
１５との間を回転する。このため他面側磁気ヘッド１５
は面取りをさして本来磁気へラドが磁気媒体１２と触れ
るべき部分のみが触れるようにしているが、他面側磁気
ヘッド１５の面取シの状態によシ他面側磁気ヘッド１５
の面取り　　　　　　□部分が接触し、磁気媒体１２に
損傷を与え易い難点があった。That is, the magnetic medium 12 is pushed by the other side magnetic head 16 and rotates between the one side magnetic head 11 and the other side magnetic head 15 while being slightly warped. Therefore, the magnetic head 15 on the other side
The magnetic head 15 is chamfered so that only the part where the magnetic head should originally come in contact with the magnetic medium 12 comes in contact with the magnetic head 12.
There was a problem in that the chamfered □ portions were in contact and easily damaged the magnetic medium 12.

発明の目的 本発明は上記従来欠点に鑑み、磁気ヘッドの取り付は精
度上げるとともに、磁気媒体に損傷を与えないようにし
た磁気記録再生装置に関するものである。OBJECTS OF THE INVENTION In view of the above-mentioned conventional drawbacks, the present invention relates to a magnetic recording/reproducing apparatus in which the mounting precision of a magnetic head is improved and the magnetic medium is not damaged.

発明の構成 本発明は上記目的を達するために、中心からほぼ均等な
角度で３分割以上の位置に第１の切欠を設けてばねを形
成し、さらに前記第１の切欠の内側に第２の切欠を設け
てジンバル構造を形成した非磁性板ばねによりそれぞれ
の磁気ヘッドを支持するよう構成したものである。Structure of the Invention In order to achieve the above object, the present invention provides a spring by providing a first notch at a position of three or more parts at approximately equal angles from the center, and furthermore, a second notch is provided inside the first notch. Each magnetic head is supported by a non-magnetic plate spring having a gimbal structure with cutouts.

６　ベーター 実施例の説明 以下本発明の一実施例について、図面に基づいて説明す
る。第３図は本発明の一実施例における磁気記録再生装
置の断面図である。第３図において、２１は一面側即ち
」二側の磁気ヘッドで、後述するように形成された非磁
性薄板ばね２３によシ磁気媒体２２の方向に付勢されて
いる。２４は非磁性薄板ばね２３を保持するヘッドアー
ムで、板ばね２６によシ一端が支持されている。２６は
ヘッドアーム２４を上方から所定の圧力にて加圧するス
プリングである。6 Description of Beta Embodiment An embodiment of the present invention will be described below based on the drawings. FIG. 3 is a cross-sectional view of a magnetic recording/reproducing device according to an embodiment of the present invention. In FIG. 3, reference numeral 21 denotes a magnetic head on one side, that is, on two sides, which is biased toward the magnetic medium 22 by a nonmagnetic thin plate spring 23 formed as described below. A head arm 24 holds a non-magnetic thin plate spring 23, and one end of the head arm is supported by a plate spring 26. A spring 26 presses the head arm 24 from above with a predetermined pressure.

一方、２７は前記−面側磁気ヘッド２１との間で磁気媒
体２２を挾む他面側即ち下側の磁気ヘッドで、後述する
非磁性薄板ばね２８を介してヘッド支持台２９に支持さ
れている。On the other hand, 27 is a magnetic head on the other side, that is, on the lower side, which sandwiches the magnetic medium 22 between it and the negative side magnetic head 21, and is supported by a head support stand 29 via a non-magnetic thin plate spring 28, which will be described later. There is.

゛以下第４図を参照しながら、非磁性薄板ばね２３．２
８の構造について詳細に説明する。゛With reference to Fig. 4, the non-magnetic thin plate spring 23.2
The structure of No. 8 will be explained in detail.

第４図は非磁性薄板ばね２３，２８の平面を示しだもの
である。FIG. 4 shows the plane of the non-magnetic thin plate springs 23 and 28.

同図から明らかなように非磁性薄板ばね２３゜６　ペー
ジ ２８は直線×−Ｘ′に関して切り込み３０，３１゜３２
．３３が対称に設けられ、ばねが形成されている。さら
に切シ込み３０〜３３の内側には直線Ｘ−Ｘ’に関して
対称なコ字形の切り込み３４゜３５．３６．３７が設け
られ、ばね状のジンバル構造が形成されている。そして
そのジンバル構造の中心には磁気ヘッド２１＋２７を設
けている。As is clear from the figure, the non-magnetic thin plate spring 23゜6 Page 28 has cuts 30, 31゜32 with respect to the straight line x-X'.
．． 33 are provided symmetrically to form a spring. Further, inside the cuts 30 to 33, U-shaped cuts 34° 35, 36, 37 symmetrical with respect to the straight line XX' are provided to form a spring-like gimbal structure. A magnetic head 21+27 is provided at the center of the gimbal structure.

上記のような構造において、以下その動作を説明する。The operation of the above structure will be explained below.

まず磁気媒体２２が回転を始めることによシ、磁気媒体
２２の反りとか曲りにより一面側磁気へ　　　　　・ラ
ド２１はそれに追随しながら磁気媒体２２上のヶ９工、
、８オ。。。よあエヤ第２，７１．−１　　：側磁気ヘ
ッド２１の磁気ギャップ部分が離れると電気信号の変化
として現れ好ましくない。しかし　　　　　・なから−
面側磁気ヘッド２１には所定の荷重を与えているだけで
なく、第４図に示した非磁性板ばね２３によシ磁気媒体
の反シとか曲シとかに対応できるようになっている。First, as the magnetic medium 22 starts to rotate, it becomes magnetic on one side due to warping or bending of the magnetic medium 22. - The RAD 21 follows this and rotates the 9 pieces on the magnetic medium 22.
, 8o. . . Hey Eya No. 2, 71. -1: When the magnetic gap portion of the side magnetic head 21 separates, it appears as a change in the electric signal, which is not desirable. However, why?
Not only is a predetermined load applied to the surface-side magnetic head 21, but also a non-magnetic leaf spring 23 shown in FIG. 4 is used to cope with the warping or bending of the magnetic medium.

一方他面側磁気ヘッド２７も磁気媒体２２の反７　ペー
ミ゛ シとか曲り又は装置の機械加工精度等による上下の揺動
に対し、前記薄板ばね２８により揺動し、磁気媒体２２
の急激な変化に追随できるようにしである。このことか
ら他面側磁気ヘッド２７に対する磁気媒体２２の肖シを
小さくでき、他面側磁気ヘッド２７は一定以上の負荷が
かかれば」ユニ動可能なため磁気媒体２２に損傷を与え
ることがない。On the other hand, the magnetic head 27 on the other side is also swung by the thin plate spring 28 in response to vertical oscillations due to perforations or bends of the magnetic medium 22 or machining accuracy of the device.
This makes it possible to follow rapid changes in As a result, the profile of the magnetic medium 22 relative to the magnetic head 27 on the other side can be made smaller, and the magnetic head 27 on the other side can be moved unidirectionally when a load above a certain level is applied, so that the magnetic medium 22 is not damaged. .

発明の効果 以上のように本発明によれば、切り込みによりジンバル
構造を有した非磁性薄板ばねによシ上側及び下側の磁気
ヘッドを支持しているため、フロッピーディスクを介し
ての上側の磁気ヘッドの加圧に対し、下側の磁気ヘッド
は」ユニに揺動することができ、フロンピーディスクに
無理なく追随することができるとともに、前記ジンバル
構造により前記磁気ヘッドは常時磁気媒体と平行が保つ
ことができる。さらに磁気ヘッドと非磁性薄板ばねは上
下とも同一のものを用いることができるため製造時にお
ける部品の管理も容易となる等、その価値は大なるもの
がある。Effects of the Invention As described above, according to the present invention, since the upper and lower magnetic heads are supported by the non-magnetic thin plate springs having a gimbal structure by the notches, the upper magnetic head is transmitted through the floppy disk. In response to head pressure, the lower magnetic head can swing unidirectionally, allowing it to easily follow the floppy disk, and the gimbal structure ensures that the magnetic head is always parallel to the magnetic medium. can be kept. Furthermore, since the same magnetic head and non-magnetic thin plate spring can be used for both the upper and lower parts, the management of parts during manufacturing becomes easier, which is of great value.

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

第１図、第２図は従来の磁気記録再生装置の要部断面図
、第３図は本発明の一実施例における磁気記録再生装置
の要部断面図、第４図は非磁性薄板ばねの平面図である
。 ２１・・・・・・磁気ヘッド、２２・・・・・・磁気媒
体、２４・・・・・・ヘッドアーム、２５・・・・・・
板ばね、２６・・・・・・スプリング、２７・・・・・
・磁気ヘッド、２３．２８・・・・・・非磁性薄板ばね
、２９・・・・・・ヘッド支持台、３０〜３７・・・・
・・切り込み。 代理人の氏名　弁理士　中　尾　敏　男　ほか１名第１
図 第２図 第３図 ９仄1 and 2 are sectional views of main parts of a conventional magnetic recording/reproducing device, FIG. 3 is a sectional view of main parts of a magnetic recording/reproducing apparatus according to an embodiment of the present invention, and FIG. 4 is a sectional view of main parts of a nonmagnetic thin plate spring. FIG. 21... Magnetic head, 22... Magnetic medium, 24... Head arm, 25...
Leaf spring, 26... Spring, 27...
・Magnetic head, 23.28...Nonmagnetic thin plate spring, 29...Head support stand, 30-37...
...notch. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3 Figure 9

Claims (1)

【特許請求の範囲】[Claims] 磁気媒体の両面に対向して設けられた一対の磁気ヘッド
と、それぞれの前記磁気ヘッドを支持するとともに、中
心からほぼ均等寿角度で３分割以上の位置に第１の切欠
を設けてばねを形成し、さらに前記第１の切欠の内側に
第２の切欠を設けてジンバル構造を形成した非磁性板状
ばねとを具備した磁気記録再生装置。A spring is formed by forming a pair of magnetic heads facing each other on both sides of a magnetic medium, supporting each of the magnetic heads, and providing a first cutout at a position approximately equal to or more than three times apart from the center at an equal life angle. and a non-magnetic plate-like spring having a gimbal structure formed by providing a second notch inside the first notch.
JP16438582A 1982-09-21 1982-09-21 Magnetic recording and reproducing device Pending JPS5954069A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16438582A JPS5954069A (en) 1982-09-21 1982-09-21 Magnetic recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16438582A JPS5954069A (en) 1982-09-21 1982-09-21 Magnetic recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS5954069A true JPS5954069A (en) 1984-03-28

Family

ID=15792118

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16438582A Pending JPS5954069A (en) 1982-09-21 1982-09-21 Magnetic recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS5954069A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4876623A (en) * 1986-09-30 1989-10-24 Kabushiki Kaisha Toshiba Magnetic disc device with gimbal spring having variable elastic characteristics
US5381288A (en) * 1992-06-16 1995-01-10 Applied Magnetics Corporation, Inc. Center moment suspension assembly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3593326A (en) * 1968-07-09 1971-07-13 Int Computers Ltd Magnetic head mounting with plural gimbals
JPS54133312A (en) * 1978-04-07 1979-10-17 Yaskawa Denki Seisakusho Kk Device for supporting magnetic head

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3593326A (en) * 1968-07-09 1971-07-13 Int Computers Ltd Magnetic head mounting with plural gimbals
JPS54133312A (en) * 1978-04-07 1979-10-17 Yaskawa Denki Seisakusho Kk Device for supporting magnetic head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4876623A (en) * 1986-09-30 1989-10-24 Kabushiki Kaisha Toshiba Magnetic disc device with gimbal spring having variable elastic characteristics
US5381288A (en) * 1992-06-16 1995-01-10 Applied Magnetics Corporation, Inc. Center moment suspension assembly

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