JPS6174172A - Magnetic disk driving device - Google Patents

Magnetic disk driving device

Info

Publication number
JPS6174172A
JPS6174172A JP19487384A JP19487384A JPS6174172A JP S6174172 A JPS6174172 A JP S6174172A JP 19487384 A JP19487384 A JP 19487384A JP 19487384 A JP19487384 A JP 19487384A JP S6174172 A JPS6174172 A JP S6174172A
Authority
JP
Japan
Prior art keywords
magnetic disk
spring
carriage
gimbal spring
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
JP19487384A
Other languages
Japanese (ja)
Inventor
Hiroshi Maruyama
浩史 丸山
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.)
Maxell Ltd
Original Assignee
Hitachi Maxell 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 Maxell Ltd filed Critical Hitachi Maxell Ltd
Priority to JP19487384A priority Critical patent/JPS6174172A/en
Publication of JPS6174172A publication Critical patent/JPS6174172A/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
    • G11B5/488—Disposition of heads
    • G11B5/4886—Disposition of heads relative to rotating disc

Abstract

PURPOSE:To manufacture a gimbal spring and a supporting plate with the same processing machine and process by composing the gimbal spring and the supporting plate with a plate-shaped member with the same plane shape and different plate thickness. CONSTITUTION:A carriage 1 is provided with a carriage 2 at the lower part side and a rotary arm 3 at the upper part side and the arm 3 is freely and rotatably supported through a flat plate-shaped connecting spring 9 to the upper part of a carrier. The carriage 1 is reciprocatedly shifted in the radial direction of a magnetic disk 8. At the tip of the carrier 2, a penetrating hole 2a is formed, a supporting plate 6 is fixed to the upper surface of the carrier 2 round the penetrating hole 2a and a magnetic head 4 is fixed to the center of the supporting plate 6. The penetrating hole 3a is formed even at the tip of the arm 3, a gimbal spring 7 is fixed at the lower surface of the arm 3 round the penetrating hole 3a and a magnetic head 5 is fixed to the center of the spring 7. The supporting plate 6 and the spring 7 are composed of a plate-shaped member with the same plane shape and different plate thickness, and can be manufactured with the same processing machine and process.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、磁気ディスクを記録媒体として情報を記録・
再生する磁気ディスク駆動装置に係り。[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to recording and recording information using a magnetic disk as a recording medium.
Relates to magnetic disk drive devices for playback.

特に、上下両磁気ヘッドをキャリッジに支持するための
ジンバルばねと支持板の構造に関する。In particular, it relates to the structure of a gimbal spring and support plate for supporting both upper and lower magnetic heads on a carriage.

〔従来の技術〕[Conventional technology]

磁気ディスク駆動装置は、磁気ディスクを装着し、これ
を回転駆動するターンテーブルと、上下一対の磁気へ１
ツドを有して磁気ディスクの半径方向に往復移動させる
キャリッジとを備えており。A magnetic disk drive device includes a turntable on which a magnetic disk is mounted, a turntable that rotates the disk, and a pair of upper and lower magnetic drives.
The magnetic disk is equipped with a carriage that has a head and moves back and forth in the radial direction of the magnetic disk.

前記両磁気ヘッドで磁気ディスクを挾持することにより
、磁気ディスクへの記録または磁気ディスクからの再生
が行われるように構成されている。By holding the magnetic disk between the two magnetic heads, recording to or reproduction from the magnetic disk is performed.

従来、かかる磁気ディスク駆動装置において。Conventionally, in such a magnetic disk drive device.

両磁気ヘッドのうち下部側の磁気ヘッドは比較的剛性の
高い平板状の支持板を介してキャリッジに取付けられ、
一方、上部側の磁気ヘッドはフレキシブルなジンバルば
ねを介してキャリッジに取付けられており、このジンバ
ルばねによって、磁気ヘッドが磁気ディスクのうねり等
の変形に追随できるよう構成されている。The lower magnetic head of both magnetic heads is attached to the carriage via a relatively rigid flat support plate.
On the other hand, the upper magnetic head is attached to the carriage via a flexible gimbal spring, and the gimbal spring allows the magnetic head to follow deformations such as undulations of the magnetic disk.

このようｔこ、前記ジンバルばねと支持板とは。In this way, what is the gimbal spring and support plate?

前者が上部側磁気ヘッドをキャリッジにフレキシブルに
連結するのに対し、後者が下部側磁気ヘツドをキャリッ
ジに強固に連結するもので、その使用目的が異なるため
、異なる材料（前者は板ばね、後者は金属板）をそれぞ
れ異なる形状に加工したものを用いていた。The former flexibly connects the upper magnetic head to the carriage, while the latter firmly connects the lower magnetic head to the carriage, and because their purposes are different, they are made of different materials (the former uses a leaf spring, the latter uses a plate spring). They used metal plates) processed into different shapes.

従って、上記の従来例においては、ジンバルばねと支持
板を製造するのに際し、それぞ九専用の加工機が必要と
なり、例えば間者を打ち抜き加工によって製造する場合
は、異なる型構造のプレス加工機を必要とし、製造コス
トがアップしてしまうという欠点があった。Therefore, in the above conventional example, when manufacturing the gimbal spring and the support plate, a dedicated processing machine is required for each.For example, when manufacturing the gimbal spring by punching, a press processing machine with a different mold structure is required. This has the disadvantage of increasing manufacturing costs.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

本発明の目的は、上記従来技術の欠点を除き。 The object of the present invention is to eliminate the drawbacks of the above-mentioned prior art.

ジンバルばねと支持板とを同一の製造工程により加工で
きる磁気ディスク駆動装置を提供するにある。An object of the present invention is to provide a magnetic disk drive device in which a gimbal spring and a support plate can be fabricated in the same manufacturing process.

〔問題点を解決するための手段〕[Means for solving problems]

この目的を達成するために、本発明は、ジンバルばねと
支持板とを平面形状が同一で板厚のみが異なる形状に加
工し、それぞれの板厚を変えることにより所望の剛性が
得られるように構成した点に特徴がある。In order to achieve this objective, the present invention processes a gimbal spring and a support plate into shapes that have the same planar shape but differ only in thickness, and by changing the thickness of each plate, the desired rigidity can be obtained. It is distinctive in its composition.

〔実施例〕〔Example〕

以下、本発明の実施例を図面により説明する。 Embodiments of the present invention will be described below with reference to the drawings.

第１図は磁気ディスクと磁気ヘッドとの接触状態を示す
要部の断面図、第２図はキャリッジの平面図、第３図は
キャリッジの側面図、第４図は磁気ヘッドの平面図、第
５図はジンバルばね及び支持板の平面図である。これら
の図において、１はキャリッジ、２はキャリア、３は回
動アーム、４は下部側の磁気ヘッド、５は上部側の磁気
ヘッド、６は支持板、７はジンバルばね、８は磁気ディ
スクである。Fig. 1 is a cross-sectional view of the main parts showing the state of contact between the magnetic disk and the magnetic head, Fig. 2 is a plan view of the carriage, Fig. 3 is a side view of the carriage, Fig. 4 is a plan view of the magnetic head, and Fig. 4 is a plan view of the carriage. FIG. 5 is a plan view of the gimbal spring and support plate. In these figures, 1 is a carriage, 2 is a carrier, 3 is a rotating arm, 4 is a lower magnetic head, 5 is an upper magnetic head, 6 is a support plate, 7 is a gimbal spring, and 8 is a magnetic disk. be.

キャリッジｌは、第２図及び第３図に示すように下部側
のキャリッジ２と上部側の回動アーム３とを備えており
、該回動アーム３はキャリア２の上部に平板状の連結ば
ね９を介して回動自在に支持されている。前記キャリア
２は、記録再生装置内のシャーシ（図示せず）に固着さ
れた一対のガイドシャフト１０と摺動自在に嵌合してお
り、これによりキャリッジ１は磁気ディスク８の半径方
向に往復移動される。As shown in FIGS. 2 and 3, the carriage 1 includes a carriage 2 on the lower side and a rotating arm 3 on the upper side. It is rotatably supported via 9. The carrier 2 is slidably fitted to a pair of guide shafts 10 fixed to a chassis (not shown) in the recording/reproducing apparatus, so that the carriage 1 reciprocates in the radial direction of the magnetic disk 8. be done.

第１図に示すように、前記キャリア２の先端部分には貫
通孔２ａが形成されており、該貫通孔２ａ周縁のキャリ
ア２上面には比較的剛性の高い支持板６が固着され、さ
らに該支持板６の中央には下部側の磁気ヘッド４が固着
されている。一方。As shown in FIG. 1, a through hole 2a is formed at the tip of the carrier 2, and a relatively rigid support plate 6 is fixed to the upper surface of the carrier 2 at the periphery of the through hole 2a. A lower magnetic head 4 is fixed to the center of the support plate 6. on the other hand.

前記回動アーム３の先端部分にも貫通孔３ａが形成され
ており、該貫通孔３ａＪ！ｉｌ＠の回動アーム３下面に
はフレキシブルなジンバルばね７が固着され、さらに該
ジンバルばね７中央には上部材側の磁気ヘッド５が固着
されている。A through hole 3a is also formed at the tip of the rotating arm 3, and the through hole 3aJ! A flexible gimbal spring 7 is fixed to the lower surface of the rotating arm 3 of il@, and a magnetic head 5 on the upper member side is fixed to the center of the gimbal spring 7.

これら磁気ヘッド４．５は、第４図に示すように、記録
再生ヘッド１１ａ、と消去ヘッドｌｌｂとを接合した縦
長形状のヘッド素子工１と、該ヘッド素子１１ａを保持
する素子保持体１２とを備えており、該素子保持体１２
のヘッド素子ｌｌ側端面には段落ち状の空気抜は溝１２
ａが形成されている。As shown in FIG. 4, these magnetic heads 4.5 include a vertically elongated head element assembly 1 in which a recording/reproducing head 11a and an erasing head llb are joined together, and an element holder 12 that holds the head element 11a. The element holder 12
There is a step-shaped air vent groove 12 on the end surface of the head element II side.
a is formed.

前記支持−６とジンバルばね７とは、それぞれ板厚寸法
のみが異なるだけで同一の平面形−状を有し、プレス加
工やフォトエツチング法等の加工法を用いて同一の工程
で製造される。すなわち、第５［！Ｉに示すように、支
持板６とジンバルばね７とはその中央部分に一対のヘッ
ド挿入孔１３を有し、また該ヘッド挿入孔１３の外方に
１図示上下方向のみが連結された一対の孔１４と２図示
左右方向のみが連結された一対の孔１５とをそれぞれ有
し、さらに左右両側部に位置決め用孔１６．１６”とを
有している。前記両ヘッド挿入孔１３のいずれか一方の
隣接する二辺は、斜線で示すように前記磁気ヘッド４，
５のヘッド素子１１の二面と当接して磁気ヘッド４，５
を規制する位置決め部として利用され、この時の位置決
め精度を向上させるために、ヘッド挿入孔１３の位ぼ決
め用二辺のコーナーに切欠部１３ａが形成されている。The support 6 and the gimbal spring 7 have the same planar shape, differing only in plate thickness, and are manufactured in the same process using a processing method such as press working or photo etching. . In other words, the fifth [! As shown in FIG. 1, the support plate 6 and the gimbal spring 7 have a pair of head insertion holes 13 in their central portions, and a pair of head insertion holes 13 are provided outside the head insertion holes 13 and are connected only in the vertical direction shown in the figure. It has a hole 14 and a pair of holes 15 connected only in the left and right directions shown in the figure, and further has positioning holes 16.16" on both left and right sides. Either of the head insertion holes 13 One adjacent two sides are the magnetic head 4, as shown by diagonal lines.
The magnetic heads 4 and 5 are in contact with two surfaces of the head element 11 of No. 5.
Notches 13a are formed at the corners of the two positioning sides of the head insertion hole 13 in order to improve the positioning accuracy at this time.

このように、支持板６とジンバルばね７とは同一の平面
形状を有するものであるから、材料の板厚寸、法を変え
るだけで同一の工程で製造できる６゛例えば、支持板６
を製造する場合は、所望の型構造を備えたプレスや所望
のパターンを備えたフオトエッチング加工機を準備し、
これら加工機に弾性に富んだ比較的板厚が厚い材料（０
，３ｍｍ程度）を装填して剛性の高い支持板６を加工す
る。一方、ジンバルばね７を製造する場合は、同一の加
工機を用い、これに先と同一の材質で比較的板厚が薄い
材料（０，０５ｍｍ程度）を装填してフレキシブルなジ
ンバルばね７を加工する。従って、支持板６とジンバル
ばね７とをプレスによる打ち抜き加工により製造する場
合は同一の型構造を用いる。二とができ、これらをフォ
トエツチング法により！１造する場合は同一のパターン
原板を用いめことができ。In this way, since the support plate 6 and the gimbal spring 7 have the same planar shape, they can be manufactured in the same process by simply changing the plate thickness and method of the material.
When manufacturing, prepare a press with the desired mold structure or a photo-etching machine with the desired pattern,
These processing machines use relatively thick materials with high elasticity (0
, about 3 mm) to process a highly rigid support plate 6. On the other hand, when manufacturing the gimbal spring 7, use the same processing machine, load the same material with a relatively thin plate thickness (about 0.05 mm), and process the flexible gimbal spring 7. do. Therefore, when manufacturing the support plate 6 and the gimbal spring 7 by punching using a press, the same mold structure is used. Both can be made using photo-etching method! If you are making one piece, you can use the same pattern board.

いずれの場合も従来方法に比べて製造コストを低下させ
ることができる。In either case, manufacturing costs can be lowered compared to conventional methods.

次に、前記磁気ヘッド４，５をキャリッジ１に取付ける
作業について説明する。まず、下部側磁気ヘッド４とヘ
ッド素子１１を支持板６のいずれか一方のヘッド挿入孔
１３に挿入し、該磁気ヘッド４を支持板６に接着固定す
る。この時、磁気へと ラド４妾支持板６との相対位置は、ヘッド素子１１の隣
接する二面とヘッド挿入孔１３の隣接する二辺との当接
によって規制され、前述のようにヘッド挿入孔１３のコ
ーナーには切欠部１３ａが形成されているため、ヘッド
素子１１とヘッド挿入孔１３との接触は確実になり、磁
気ヘッド４を支持板６に精度良く固定できる０次に、か
かる支持板６の両位置決め用孔１６．１６’をキャリア
２の先端部上面に形成した一対の突部２ｂ、２ｂ′に嵌
合し、支持板６をキャリッジに位置決めした状態で両者
を接着固定する。Next, the operation of attaching the magnetic heads 4 and 5 to the carriage 1 will be explained. First, the lower magnetic head 4 and the head element 11 are inserted into the head insertion hole 13 of one of the support plates 6, and the magnetic head 4 is adhesively fixed to the support plate 6. At this time, the relative position of the magnetic field 4 and the support plate 6 is regulated by the contact between the two adjacent sides of the head element 11 and the two adjacent sides of the head insertion hole 13, and the head insertion hole 13 is regulated as described above. Since a notch 13a is formed at the corner of the hole 13, contact between the head element 11 and the head insertion hole 13 is ensured, and the magnetic head 4 can be fixed to the support plate 6 with high precision. Both positioning holes 16 and 16' of the plate 6 are fitted into a pair of protrusions 2b and 2b' formed on the upper surface of the distal end of the carrier 2, and both are bonded and fixed with the support plate 6 positioned on the carriage.

同様にして、上部側磁気ヘッド５をヘッド挿入孔１３を
利用してジンバルばね７の中央位置に位置決めし、接着
した後、かかるジンバルばね７の両位置決め用孔１６．
１６”を回動アーム３の先端部下面に形成した一対突部
３ｂ、３ｂ’に嵌合し、ジンバルばね７を回動アーム３
に接着固定する。Similarly, the upper magnetic head 5 is positioned at the center of the gimbal spring 7 using the head insertion hole 13 and bonded, and then the upper magnetic head 5 is positioned at the center of the gimbal spring 7 using the head insertion hole 13.
16'' is fitted into a pair of protrusions 3b and 3b' formed on the lower surface of the tip of the rotating arm 3, and the gimbal spring 7 is attached to the rotating arm 3.
Glue and fix.

−２このようにして両磁気ヘッド４．５はキャリア１Ｃ 二、４．２及び回動アーム３の所定位置に取付けられ、
取１．二 ”ｒｔｌ付状前状態、第１図に示すように互いのヘッド
素１１が素子保持体１２と対向する。-2 In this way, both magnetic heads 4.5 are attached to predetermined positions on the carrier 1C2, 4.2 and the rotating arm 3,
Take 1. In the state before the 2'' rtl attachment, the head elements 11 of each head face the element holder 12, as shown in FIG.

なお、前記回動アーム３には１図示省略しであるが回動
アーム３を下方へ付勢するばね手段が設けられており、
前記両磁気ヘッド４，５は当該ばね手段によって回動ア
ーム３がキャリア２方向へ付勢されることで、磁気ディ
スク８の表意両面に形成された磁性層に適宜接触圧をも
って接触され、磁気ディスク８への記録または磁気ディ
スク８からの再生が行われる。Although not shown, the rotating arm 3 is provided with a spring means for biasing the rotating arm 3 downward.
Both the magnetic heads 4 and 5 are brought into contact with the magnetic layers formed on both ostensible surfaces of the magnetic disk 8 with appropriate contact pressure by urging the rotating arm 3 in the direction of the carrier 2 by the spring means. Recording to or reproduction from the magnetic disk 8 is performed.

なお、上記実施例においては、支持板６とジンバルば、
！２７とを同一の加工機を用いて加工する際に、同一の
材質で板厚のみが異なる材料を用いたものについて説明
したが１両者の目的に応じて材質や板厚を適宜変えても
良い。この場合も、支持４Ｊｉ６とジンバルばね７の平
面形状は同一であるため、同一の加工機を使用できるも
のはいうまでもない。In addition, in the above embodiment, the support plate 6 and the gimbal,
! When processing 27 and 27 using the same processing machine, we have explained that the same material is used but only the plate thickness is different.1 The material and plate thickness may be changed as appropriate depending on the purpose of both. . In this case as well, since the planar shapes of the support 4Ji6 and the gimbal spring 7 are the same, it goes without saying that the same processing machine can be used.

〔発明の効果〕〔Effect of the invention〕

以上説明したように、本発明によれば、ジンバルばねと
支持板とを平面形状が同一で板厚が異なる板状部材とし
たため１両者を同一の加工機を用いて同一の工程で製造
することができ、それ故。As explained above, according to the present invention, since the gimbal spring and the support plate are made of plate-like members having the same planar shape and different thicknesses, it is possible to manufacture both in the same process using the same processing machine. can, therefore.

従来のものに比べて製造コストを低下させることが可能
となる。It is possible to reduce manufacturing costs compared to conventional products.

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

図はいずれも本発明の実施例に係るもので、第１図は磁
気ディスクと磁気ヘッドとの接触状態を示す要部の断面
図、第２図はキャリッジの平面図、第３図はキャリッジ
の側面図、第４図は磁気ヘッドの平面図、第５図はジン
バルばねと支持板の平面図である。 １・・・・・・キャリッジ、２・・・・・キャリア、３
・・・・・・回動アーム、４，５・・・・・・磁気ヘッ
ド、６・・・・・・支持板、７・・・・・・ジンバルば
ね、８・・・・・・磁気ディスク、１３・・・・・・ヘ
ッド挿入孔、】３ａ・・・・・・切欠部。 第１図 ２°虎τソ了 う９回動アーム ４：下邦イ貝′し一１気、ヘンド タ：工部は＋１看を気へ汁。 ６：欠口１反 ７°ジ／八゛ルｔＦ’４ Ｂ：臭気デースフ 第２図 Ｏ 第３図The figures are all related to embodiments of the present invention. Figure 1 is a sectional view of the main part showing the contact state between the magnetic disk and the magnetic head, Figure 2 is a plan view of the carriage, and Figure 3 is a diagram of the carriage. 4 is a side view, FIG. 4 is a plan view of the magnetic head, and FIG. 5 is a plan view of the gimbal spring and support plate. 1... Carriage, 2... Carrier, 3
... Rotating arm, 4, 5 ... Magnetic head, 6 ... Support plate, 7 ... Gimbal spring, 8 ... Magnetism Disc, 13...Head insertion hole, ]3a...Notch. Figure 1 2° Tiger τ So Finish 9 Rotating Arm 4: Shimokuni Ikai's 11 Ki, Hendota: Engineering Department +1 View to Ki. 6: Notch 1 7° di/8 tF'4 B: Odor cover Figure 2 O Figure 3

Claims (1)

【特許請求の範囲】[Claims] 磁気ディスクの半径方向に移動可能なキャリアと、該キ
ャリアに支持板を介して搭載された下部側磁気ヘッドと
、該キャリアに連結ばねを介して回動自在に支持された
回動アームと、該回動アームにジンバルばねを介して保
持された上部側磁気ヘッドとを備え、前記上部側磁気ヘ
ッドと下部側磁気ヘッドとで前記磁気ディスクを挾持し
て情報の記録・再生を行う磁気ディスク駆動装置におい
て、前記ジンバルばねと前記支持板とを、平面形状が同
一で板厚がそれぞれ異なる板状部材で構成したことを特
徴とする磁気ディスク駆動装置。a carrier movable in the radial direction of the magnetic disk; a lower magnetic head mounted on the carrier via a support plate; a rotating arm rotatably supported on the carrier via a connecting spring; A magnetic disk drive device comprising an upper magnetic head held by a rotating arm via a gimbal spring, the upper magnetic head and the lower magnetic head sandwiching the magnetic disk to record/reproduce information. A magnetic disk drive device, wherein the gimbal spring and the support plate are plate-like members having the same planar shape and different thicknesses.
JP19487384A 1984-09-19 1984-09-19 Magnetic disk driving device Pending JPS6174172A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19487384A JPS6174172A (en) 1984-09-19 1984-09-19 Magnetic disk driving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19487384A JPS6174172A (en) 1984-09-19 1984-09-19 Magnetic disk driving device

Publications (1)

Publication Number Publication Date
JPS6174172A true JPS6174172A (en) 1986-04-16

Family

ID=16331724

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19487384A Pending JPS6174172A (en) 1984-09-19 1984-09-19 Magnetic disk driving device

Country Status (1)

Country Link
JP (1) JPS6174172A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63239649A (en) * 1986-11-12 1988-10-05 Seiko Epson Corp Magnetic head supporting mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63239649A (en) * 1986-11-12 1988-10-05 Seiko Epson Corp Magnetic head supporting mechanism

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