JPS63117382A - Information storage medium - Google Patents

Information storage medium

Info

Publication number
JPS63117382A
JPS63117382A JP61263354A JP26335486A JPS63117382A JP S63117382 A JPS63117382 A JP S63117382A JP 61263354 A JP61263354 A JP 61263354A JP 26335486 A JP26335486 A JP 26335486A JP S63117382 A JPS63117382 A JP S63117382A
Authority
JP
Japan
Prior art keywords
substrate
storage medium
information storage
center
centering
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
JP61263354A
Other languages
Japanese (ja)
Other versions
JP2543860B2 (en
Inventor
Kazuharu Odawara
小田原 一晴
Ryoji Yamaguchi
山口 良治
Nobuo Inage
稲毛 信夫
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.)
Toshiba Corp
Toshiba Intelligent Technology Co Ltd
Original Assignee
Toshiba Corp
Toshiba Intelligent Technology 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 Toshiba Corp, Toshiba Intelligent Technology Co Ltd filed Critical Toshiba Corp
Priority to JP61263354A priority Critical patent/JP2543860B2/en
Publication of JPS63117382A publication Critical patent/JPS63117382A/en
Application granted granted Critical
Publication of JP2543860B2 publication Critical patent/JP2543860B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PURPOSE:To prevent the generation of the distortion of a substrate due to a thermal effect by providing a centering member having a center hole of a center of rotation in a central part and integrally formed on the substrate in a member to be attracted. CONSTITUTION:The member 8 to be attracted disposed at the central part of the substrate 6 is constituted of the centering member 20 having the center hole 10 of the center of rotation in the central part and a magnetic member 21 attached to the centering member 20. Accordingly, even when the thermal effect due to an external temperature change or the like is received, an influence due to the difference in the thermal expansion coefficient between the substrate 6 and the magnetic member 21 can be absorbed by this part, a distortion is not generated in the substrate 6 but a stable information processing can be executed. The centering member 20 is integrally formed on the substrate 6, thereby, the formation of a protruding part for fitting to the internal diameter part of the substrate which requires a high accuracy as in the case of constituting the centering member 20 of another member can be saved, a labor for bonding to the substrate can be saved and a highly accurate member can be provided at low cost.

Description

【発明の詳細な説明】 [発明の目的] (産業上の利用分野) 本発明は、たとえば光ディスク等の情報記憶媒体を駆動
して、その回転途中においてレーザ光等を用いて情報の
記録、再生、あるいは消去等の情報処理を行なう情報処
理装置に使用される情報記憶媒体の改良に関する。
[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention is directed to recording and reproducing information by driving an information storage medium such as an optical disk and using a laser beam or the like during its rotation. The present invention relates to improvements in information storage media used in information processing apparatuses that perform information processing such as erasing or erasing.

(従来の技術) 近年、光ディスクを記憶媒体とする情報処理装置は、従
来多用されている磁気的な情報処理装置等に比べ、情報
収容量を大幅に増大することができ、また、ノイズが少
なく極めて良好かつ安定した情報の再生状態が得られる
とともに、外部の影響を受は難く記憶状態が極めて安定
しており、しかも非接触状態での情報処理が行えて記憶
媒体および情報処理ヘッドの損傷等の悪影響が無い等の
特長を有するところから多用されつつある。
(Prior Art) In recent years, information processing devices using optical disks as storage media have been able to significantly increase the information storage capacity and have less noise compared to conventionally widely used magnetic information processing devices. In addition to obtaining extremely good and stable information playback conditions, the storage condition is extremely stable as it is unlikely to be affected by external influences, and information processing can be performed in a non-contact manner, preventing damage to the storage medium and information processing head. It is increasingly being used because it has features such as no adverse effects.

また、この多用化傾向に伴い、最近では、この種情報処
理装置、例えば情報記録/再生装置にあっては、極力薄
型化、軽量化、低コスト化を図ることが要望されている
In addition, with this trend toward increased use, there has recently been a demand for information processing devices of this type, such as information recording/reproducing devices, to be as thin, lightweight, and cost-effective as possible.

一方、従来の装置では、第5図および第6図に示すよう
に、情報記憶媒体(光ディスク)aをターンテーブルb
に固定する場合には、情報記憶媒体(光ディスク)aを
クランパCを介してターンテーブルb側に押え付ける構
成となっている。
On the other hand, in the conventional apparatus, as shown in FIGS. 5 and 6, an information storage medium (optical disk) a is placed on a turntable b.
In the case of fixing the information storage medium (optical disk) a to the turntable b side via a clamper C, the information storage medium (optical disk) a is pressed against the turntable b side.

第6図に示すものは、ばね等の付勢体dを備えた支持手
段eを介してクランパCに押付は力を付与する構成であ
り、また、第6図に示すものはクランパCに磁石fを取
付け、磁性材料からなるターンテーブルbとの間に生じ
る磁気的な吸引力によりクランパCに押付は力を付与す
る構成となっている。
The structure shown in FIG. 6 is configured to apply a pressing force to the clamper C via a support means e equipped with a biasing body d such as a spring, and the structure shown in FIG. f is attached, and a pressing force is applied to the clamper C by the magnetic attraction force generated between it and the turntable b made of a magnetic material.

しかしながら、このような従来装置にあっては、いずれ
もクランパCを必要とするだけでなく、クランパCを移
動させるに必要な移動空間を形成しなければならず、ま
た、クランパCを接離させる機構等が必要となる。この
ため、この部分の構成が複雑、かつ大型となり、薄型化
、軽量化、低コスト化への大きな障害となるばかりでな
く、組立。
However, in all of these conventional devices, not only the clamper C is required, but also a movement space necessary for moving the clamper C must be created, and there is also a need to move the clamper C toward and away. A mechanism etc. is required. For this reason, the structure of this part is complicated and large, which not only becomes a major obstacle to reducing thickness, weight, and cost, but also makes assembly difficult.

保守等が面倒であるなどの問題があった。There were problems such as troublesome maintenance.

さらに、前者(第5図)のものは、ターンテーブルbが
常に力を受けた状態となるため、ターンテーブルbおよ
びこれと一体的な回転軸qを強固にしなければならず、
また、後者(第6図)のものは情報記憶媒体aの厚さに
より挟持力がばらつくし、基板りを2枚貼り合せたよう
な比較的厚い情報記憶媒体aであった場合には確実に挟
持できない場合が生じるといった問題がある。
Furthermore, in the former case (Fig. 5), since the turntable b is constantly subjected to force, the turntable b and the rotating shaft q that is integral with it must be made strong.
In addition, in the case of the latter (Fig. 6), the clamping force varies depending on the thickness of the information storage medium a, and if the information storage medium a is relatively thick, such as two substrates pasted together, There is a problem in that there are cases where it cannot be held.

また、従来は、情報記憶媒体aの内径部11すなわち、
合成樹脂性の基板りの内径部を直接ターンテーブルb側
に形成された位置決め部jに嵌合させて位置決めさせる
構成となっている。したがって、長い間に摩耗によって
情報記憶媒体aの内径部iの径が変化することがあり、
基板りに1.6−のピッチでスパイラル状に形成された
プリグループ(図示しない)の中心と回転中心との偏心
が大きくなって、情報の記録/再生に悪影響を与えるい
った重大な問題がある。
Further, conventionally, the inner diameter portion 11 of the information storage medium a, that is,
The inner diameter part of the synthetic resin substrate is directly fitted into a positioning part j formed on the turntable b side for positioning. Therefore, the diameter of the inner diameter portion i of the information storage medium a may change due to wear over a long period of time.
There is a serious problem in that the eccentricity between the center of the pre-group (not shown) formed in a spiral shape at a pitch of 1.6-1 on the substrate and the center of rotation becomes large, which adversely affects the recording/reproduction of information. be.

そこで、近時、この問題点を解決すべく薄型化。Therefore, in order to solve this problem, we have recently made it thinner.

軽量化、低コスト化等の障害となるクランパを使用する
ことなく装着可能なものとして、第7図に示すようなも
のが考えられている。これは、基板りに中心孔mを有し
た金属板nを接着剤により貼付けた情報記憶媒体aを用
い、この情報記憶媒体aをターンテーブルbに埋設され
た磁石fによりターンテーブルb側に磁気的に吸引する
構成となっている。
A device as shown in FIG. 7 has been considered as a device that can be installed without using a clamper, which is an obstacle to reducing weight and cost. This uses an information storage medium a in which a metal plate n with a center hole m is attached to a substrate with adhesive, and this information storage medium a is magnetically placed on the turntable b side by a magnet f embedded in a turntable b. It has a structure that attracts a lot of people.

しかしながら、このものは熱膨張係数の異なる基板りと
金属板nとを直接接着剤により貼付けた構成となってい
るため、外部の温度変化等により熱の影響を受けた場合
、これらの熱膨張係数の違いにより基板りの内径部の近
辺に力が加えられ基板りにわずかの歪みが生じる。この
基板りの歪みは、基板りの光学特性(特に複屈折率)に
影響を与え、特に情報の記録/再生に大きな悪影響を及
ぼすといった問題がある。
However, since this product has a structure in which the substrate and metal plate n, which have different coefficients of thermal expansion, are directly attached with adhesive, these coefficients of thermal expansion will change when affected by heat due to external temperature changes, etc. Due to the difference in pressure, a force is applied near the inner diameter of the board, causing a slight distortion in the board. This distortion of the substrate affects the optical properties (particularly the birefringence) of the substrate, and there is a problem in that it has a particularly bad effect on recording/reproducing information.

(発明が解決しようとする問題点) 以上のごとく、薄型化、軽量化、低コスト化等の障害と
なるクランパを使用することなく、また、情報記憶媒体
の厚さに関係なく装着可能等の特長を有する第7図に示
す構成のものにおいても、熱膨張係数の異なる基板りと
金属板nとを直接接着剤により貼付けた構成となってい
るため、外部の温度変化等により熱の影響を受けた場合
、これらの熱膨張係数の違いにより基板りにわずかの歪
みが生じ、基板りの光学特性(特に複屈折率)に影響を
与え、特に情報の記録/再生に大きな悪影響を及ぼすと
いった問題がある。
(Problems to be Solved by the Invention) As described above, it is possible to reduce the thickness, weight, and cost of the information storage medium without using a clamper, which is an obstacle, and to be able to attach it regardless of the thickness of the information storage medium. Even in the structure shown in Fig. 7, which has this feature, the substrate and the metal plate n, which have different coefficients of thermal expansion, are directly attached with adhesive, so there is no possibility of thermal effects caused by external temperature changes, etc. When exposed to heat, slight distortion occurs in the substrate due to the difference in thermal expansion coefficient, which affects the optical properties of the substrate (especially birefringence), and has a particularly negative effect on information recording/reproduction. There is.

本発明は上記事情に基きなされたもので、その目的とす
るところは、コスト化、等の障害となるクランパを使用
することなく容易かつ確実に装着可能であり、しかも、
熱影響による基板の歪みの発生を防止でき、安定した情
報処理が可能な情報記憶媒体を提供しようとするもので
ある。
The present invention has been made based on the above-mentioned circumstances, and its purpose is to enable easy and reliable mounting without using a clamper, which poses an obstacle such as cost increase, and
The present invention aims to provide an information storage medium that can prevent distortion of the substrate due to thermal effects and can perform stable information processing.

[発明の構成コ (問題点を解決するための手段) 本発明は、上記問題点を解決するために、磁気形成部材
を収容したターンテーブルに装着されて回転駆動される
もので、このターンテーブル側に磁気的に吸引される被
吸引部材が設けられた情報記憶媒体であって、上記被吸
引部材が、中心部に回転中心となる中心孔を有するとと
もに基板に一体成形された芯出し部材と、この芯出し部
材に取付けられた磁性部材とを具備してなる構成とした
ものである。
[Structure of the Invention (Means for Solving the Problems) In order to solve the above problems, the present invention is a device that is mounted on a turntable containing a magnetic forming member and driven to rotate. An information storage medium is provided with a member to be magnetically attracted to the side, the member to be attracted has a center hole in the center serving as a center of rotation, and a centering member integrally molded on a substrate. , and a magnetic member attached to the centering member.

(作用) すなわち、本発明は上記の構成とすることによって、情
報記憶媒体がターンテーブルに磁気的に吸引装着が可能
となるから、これにより従来必要としていた装置の薄型
化、軽量化、低コスト化等の障害となるクランパを不要
とした状態で装着することが可能となる。また、基板の
中心部に取付けられる被吸引部材が、基板と一体の芯出
し部材と、この芯出し部材に取付けられた磁性部材とか
ら構成したから、基板と磁性部材の熱膨張係数の違いに
よる基板の歪みを防止でき、安定した情報処理が可能と
なる。
(Function) That is, with the above configuration, the present invention enables the information storage medium to be magnetically attached to the turntable, thereby making the device thinner, lighter, and lower in cost than conventionally required. This makes it possible to install the device without the need for a clamper, which can be a hindrance to conversion. In addition, since the attracted member attached to the center of the board consists of a centering member integrated with the board and a magnetic member attached to this centering member, the difference in thermal expansion coefficient between the board and the magnetic member This prevents distortion of the board and enables stable information processing.

(実施例) 以下、本発明の一実施例を第1図ないし第4図を参照し
て説明する。
(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

第1図および第2図中、1はカートリッジ2内に収容さ
れた情報記憶媒体(以下、ディスクと称す)であり、こ
のディスク1は情報処理装置の本体(図示しない)に形
成された媒体挿脱口にカートリッジ2ごと挿入されるよ
うになっている。
1 and 2, 1 is an information storage medium (hereinafter referred to as a disk) housed in a cartridge 2, and this disk 1 is a medium insert formed in the main body (not shown) of the information processing device. The entire cartridge 2 is inserted into the ejection port.

カートリッジ2ごと挿入されたディスク1は、媒体取込
/装着機構(図示しない)により自動的に所定位置かつ
水平状態に取込まれ、このとき上記カートリッジ2がデ
ィスク1の一部を露出するように回転中心部を開いた状
態となる。そして、この後、カートリッジ2が面方向に
変位してディスク1が媒体駆動手段3のターンテーブル
4に自動的に装着されるようになっている。
The disk 1 inserted together with the cartridge 2 is automatically taken into a predetermined position and in a horizontal state by a medium loading/loading mechanism (not shown), and at this time, the cartridge 2 is inserted so that a part of the disk 1 is exposed. The center of rotation becomes open. Thereafter, the cartridge 2 is displaced in the plane direction, and the disk 1 is automatically mounted on the turntable 4 of the medium drive means 3.

上記ディスク1は、情報記録115を有する2枚の基板
6.6を上記情報記録層5.5が内側になるように内側
スペーサ7および外側スペーサ(図示しない)を挟んで
接着するとともに、その内径部の両面に磁気的に吸引さ
れる被吸引部材8,8を取付けた構成となっている。
The disk 1 is constructed by bonding two substrates 6.6 each having an information recording layer 115 with an inner spacer 7 and an outer spacer (not shown) in between so that the information recording layer 5.5 is on the inside. It has a structure in which attracted members 8, 8 which are magnetically attracted are attached to both sides of the part.

上記基板6.6は、射出成形された透明なプラスチック
板からなり、上記内側スペーサ7および外側スペーサと
紫外線硬化型の接着剤を介して接着されている。
The substrate 6.6 is made of an injection-molded transparent plastic plate, and is bonded to the inner spacer 7 and the outer spacer via an ultraviolet curing adhesive.

また、上記被吸引部材8は、第3図および第4図にも示
すように、芯出し部材20と、この芯出し部材20に取
付けられた磁性部材21とを具備した構成となっている
Further, as shown in FIGS. 3 and 4, the attracted member 8 includes a centering member 20 and a magnetic member 21 attached to the centering member 20.

上記芯出し部材20は、基板6の回転中心部に一体成形
された円板状凸部で形成され、中心部に媒体駆動手段3
の回転軸9の芯出し部9aと嵌合する中心孔10を有し
ており、これは基板6に形成された記録再生用のプリグ
ループ(図示しない)と同軸状態に精度良く成形加工さ
れており、偏心することにより生じる記録再生の精度の
低下、およびアクセス時間の増大といった問題を防止で
きるようになっている。
The centering member 20 is formed of a disk-shaped convex portion integrally formed at the rotation center of the substrate 6, and has a medium drive means 3 at the center.
It has a center hole 10 that fits into the centering portion 9a of the rotating shaft 9, and this hole is precisely molded to be coaxial with a recording/reproducing pre-group (not shown) formed on the substrate 6. This makes it possible to prevent problems such as a decrease in recording and reproducing accuracy and an increase in access time caused by eccentricity.

また、磁性部材21は、金属板から中央部に透孔21a
を有した円板状に成形されており、芯出し部材20の上
面にこれより若干大きめに形成された環状凹所2Ob内
に嵌め込んだ状態、かつ後述する取付は手段22を介し
て基板6の面と垂直な方向への動きが拘束され、基板6
の面と平行な方向にはわずかに移動できるように取付け
られている。
In addition, the magnetic member 21 has a through hole 21a in the center part from the metal plate.
It is molded into a disc shape with The movement in the direction perpendicular to the plane of the substrate 6 is restrained.
It is mounted so that it can move slightly in the direction parallel to the plane of the

上記取付は手段22は、第3図および第4図に示すよう
に芯出し部材20に同一中心円状に等間隔で位置するよ
うに形成さ□れた3つの被係止部23・・・と、これら
被係止部23・・・に係合すべく磁性部材21に被係止
部23・・・と同一位置関係になるように形成された係
止爪24・・・とからなっている。
As shown in FIGS. 3 and 4, the mounting means 22 includes three locked portions 23 formed on the centering member 20 so as to be located on the same central circle at equal intervals. and locking claws 24 formed on the magnetic member 21 so as to be in the same positional relationship as the locked parts 23 to engage with the locked parts 23. There is.

上記被係止部23は、上記係止爪24を挿通し得る大き
′さに形成された爪挿通孔23aおよびこれと連通する
状態に形成されたスリット部23bを有するとともにス
リット部23bの一側縁下面部には戻り防止突起23G
が形成された状態となっている。
The locked portion 23 has a claw insertion hole 23a formed in a size that allows the locking claw 24 to be inserted therethrough, a slit portion 23b formed in communication with the hole, and one side of the slit portion 23b. Return prevention protrusion 23G on the bottom of the edge
has been formed.

一方、係止爪24は、L字状に曲成された切り起し舌片
21aにより形成されている。
On the other hand, the locking pawl 24 is formed by a cut-and-raised tongue piece 21a bent into an L-shape.

しかして、取付けにあたっては、まず、磁性部材21に
形成された係止爪24・・・を芯出し部材20の爪挿通
孔23a・・・に挿通させ、この後、磁性部材21を第
4図の状態において時計方向に回動させて係止爪24の
垂直部24aがスリット部23bに介在するようにする
ことにより水平部24bをスリット部23bの一側縁下
面部に係止゛  させた状態とする。この時、係止爪2
4の水平部24bが弾性変形してスリット部23bの一
側下面部に形成された戻り防止突起23cを乗り越えた
状態となり、爪挿通孔23a・・・方向へ戻ろうとして
も防止突起23cが邪魔になって戻ることがない。
Therefore, when installing, first, the locking claws 24 formed on the magnetic member 21 are inserted into the claw insertion holes 23a of the centering member 20, and then the magnetic member 21 is inserted as shown in FIG. In this state, the horizontal part 24b is locked to the lower surface of one side edge of the slit part 23b by rotating the locking claw 24 clockwise so that the vertical part 24a of the locking claw 24 is interposed in the slit part 23b. shall be. At this time, the locking claw 2
The horizontal portion 24b of 4 is elastically deformed and climbs over the return prevention protrusion 23c formed on the lower surface of one side of the slit portion 23b, and even if you try to return to the direction of the claw insertion hole 23a, the prevention protrusion 23c will get in the way. I'll never go back.

このようにして、芯出し部材20に取付けられた磁性部
材21は、各係止爪24・・・の水平部24bがスリッ
ト部23bの一側縁下面部に係止することにより基板6
の面と垂直な方向の動きが拘束され、基板6の面と平行
な方向にはスリット部23bと垂直部24aとの間に形
成される隙間弁だけわずかに移動できるようになってい
る。
In this way, the magnetic member 21 attached to the centering member 20 is fixed to the substrate 6 by the horizontal portion 24b of each locking claw 24 being locked to the lower surface of one side edge of the slit portion 23b.
The movement in the direction perpendicular to the plane of the substrate 6 is restricted, and only the gap valve formed between the slit part 23b and the vertical part 24a can move slightly in the direction parallel to the plane of the substrate 6.

また、上記媒体駆動手段3は、前記回転軸9としてのモ
ータ軸を有したアウターロータ型のブラシレスDCモー
タ11と、このモータ11の回転軸9に取付けられたタ
ーンテーブル4を有した構成となっている。
Further, the medium driving means 3 includes an outer rotor type brushless DC motor 11 having a motor shaft as the rotation shaft 9, and a turntable 4 attached to the rotation shaft 9 of the motor 11. ing.

上記ターンテーブル4は非磁性の金属材料から形成され
ており、その上面側には凹部4aが形成されている。そ
して、この凹部4a内には上記情報記憶媒体1の被吸引
部材8を磁気的に吸引する磁石12およびヨーク13か
らなる磁気形成部材14が収容されている。これはディ
スク1をターンテーブル4に装着するための力を充分に
発揮させることと外部への磁気のもれを防ぐためである
The turntable 4 is made of a non-magnetic metal material, and has a recess 4a formed on its upper surface. A magnetism forming member 14 consisting of a magnet 12 and a yoke 13 that magnetically attracts the attracted member 8 of the information storage medium 1 is housed in the recess 4a. This is to ensure that sufficient force is exerted to mount the disc 1 on the turntable 4 and to prevent leakage of magnetism to the outside.

また、上記被吸引部材8は、その外径D1がターンテー
ブル4の上面に磁気形成部材14を収容すべく形成され
た上記凹部4aの内径D2よりも小さく形成されており
、第2図に示すように被吸引部材8の中心孔10を回転
軸9の位置決め部9aに嵌合させた状態でディスク1を
装着したときこの被吸引部材8は上記凹部4a内に収容
されるようになっている。そして、ディスク1の情報記
録層5を有した基板6がターンテーブル4の外側の環状
のテーブル面4bに直接接触するようになっている。
Further, the attracted member 8 has an outer diameter D1 smaller than an inner diameter D2 of the recess 4a formed on the upper surface of the turntable 4 to accommodate the magnetism forming member 14, as shown in FIG. When the disk 1 is mounted with the center hole 10 of the attracted member 8 fitted into the positioning portion 9a of the rotating shaft 9, the attracted member 8 is accommodated in the recess 4a. . The substrate 6 having the information recording layer 5 of the disc 1 is brought into direct contact with the outer annular table surface 4b of the turntable 4.

そして、ディスク1の情報記録層5を有した基板6をタ
ーンテーブル4に確実に押付け、基板6の面に垂直な方
向の娠れを極力小さくするようになっており、これによ
り安定した情報の記録再生が行い得る構成となっている
Then, the substrate 6 having the information recording layer 5 of the disk 1 is firmly pressed against the turntable 4, and the distortion in the direction perpendicular to the surface of the substrate 6 is minimized, thereby ensuring stable information. It has a configuration that allows recording and reproduction.

一方、媒体駆動手段3の回転軸9の芯出し部9aの長さ
は、ターンテーブル4側の被吸引部材8の中心孔10と
だけ嵌合する長さに制限されており、2個の被吸引部材
8.8の中心孔10゜10の同軸性をそれほど問題とし
ない構成となっている。
On the other hand, the length of the centering part 9a of the rotating shaft 9 of the medium drive means 3 is limited to a length that fits only the center hole 10 of the attracted member 8 on the turntable 4 side, and The structure is such that the coaxiality of the center hole 10° 10 of the suction member 8.8 is not a problem.

また、ターンテーブル4の凹部4a内に磁気回路を形成
しているので、外部に対して磁気漏れを極力小さくして
いるため、回転軸9には鉄粉などの磁性材料の粉が付着
して被吸引部材8の嵌合が旨く行なえなくなるのを防止
できるようになっている。
In addition, since a magnetic circuit is formed in the recess 4a of the turntable 4, magnetic leakage to the outside is minimized, so powder of magnetic materials such as iron powder may adhere to the rotating shaft 9. This makes it possible to prevent the suction target member 8 from failing to fit properly.

また、ターンテーブル4の凹部4a内に収容された磁石
12及びヨーク13と被吸引部材8との間には、第2図
に示すように適当な空隙Gが形成されており、ディスク
1の基板6とテーブル面4bが直接接触させる構成とな
っている。また、上記隙間Gは、ディスク1にターンテ
ーブル4の駆動力を確実に伝達させ、しかも、ディスク
1を収容したカートリッジ2を上昇させるだけでディス
ク1をターンテーブル4から容易に取り外すことができ
る適当な吸引力(装着力)でもってディスク1を装着さ
せるためである。
Further, as shown in FIG. 2, an appropriate gap G is formed between the magnet 12 and yoke 13 housed in the recess 4a of the turntable 4 and the attracted member 8, and the substrate of the disk 1 is 6 and the table surface 4b are in direct contact with each other. In addition, the above-mentioned gap G is an appropriate gap that allows the driving force of the turntable 4 to be reliably transmitted to the disk 1, and also allows the disk 1 to be easily removed from the turntable 4 by simply lifting the cartridge 2 containing the disk 1. This is to mount the disc 1 with a strong suction force (mounting force).

なお、第1図および第2図に示す15は媒体駆動手段3
のモータ取付はフレームであり、16はモータ11の駆
動を制御する制御基板である。
Note that 15 shown in FIGS. 1 and 2 is the medium driving means 3.
The motor is mounted on the frame, and 16 is a control board for controlling the drive of the motor 11.

また、第2図に示す17は図示しないリニアモータなど
のヘッド移動手段によりディスク1の半径方向に移動す
るヘッドであり、媒体駆動手段3に装着されて駆動され
る情報記憶媒体1の下面側基板6に形成された情報記録
層5に対する記録あるいは再生等の情報処理を行なうよ
うになっている。
Further, 17 shown in FIG. 2 is a head that moves in the radial direction of the disk 1 by a head moving means such as a linear motor (not shown), and the lower surface side substrate of the information storage medium 1 is attached to the medium driving means 3 and driven. Information processing, such as recording or reproduction, is performed on the information recording layer 5 formed in the recording layer 6 .

しかして、基板6と、この基板6の中心部に設けられた
取付けられた被吸引部材8とからなる上記構成のディス
ク1は、磁気形成部材14を収容したターンテーブル4
側に磁気的に吸引装着が可能となるから、これにより従
来必要としていた装置の薄型化、軽量化、低コスト化等
の障害となるクランパを使用することなく、また、ディ
スク1の厚さに関係なく装着可能となる。また、基板6
の中心部に設けられる被吸引部材8を、中心部に回転中
心となる中心孔10を有する芯出し部材20と、この芯
出し部材20に取付けられた磁性部材21とから構成し
たから、外部の温度変化等により熱の影響を受けた場合
でも、基板6と磁性部材21の熱膨張係数の違いによる
影響をこの部分で吸収でき、従来のように基板6に歪み
が発生することが無く、安定した情報処理が行えること
になる。
Thus, the disk 1 having the above-mentioned structure consisting of the substrate 6 and the attracted member 8 attached to the center of the substrate 6 has a turntable 4 in which the magnetism forming member 14 is housed.
Since it can be attached magnetically to the side, it is possible to reduce the thickness of the disk 1 without using a clamper, which is an obstacle to making the device thinner, lighter, and lower in cost, which was required in the past. It can be installed regardless. In addition, the board 6
Since the attracted member 8 provided at the center of the center is composed of a centering member 20 having a center hole 10 serving as a rotation center in the center and a magnetic member 21 attached to this centering member 20, external Even if it is affected by heat due to temperature changes, etc., the effect due to the difference in thermal expansion coefficient between the substrate 6 and the magnetic member 21 can be absorbed by this part, and the substrate 6 does not become distorted as in the conventional case, making it stable. information processing can be performed.

また、芯出し部材20を基板6に一体成形したから、芯
出し部材20を別部材で構成した場合のように高精度が
要求される基板内径部への嵌合用凸部の形成が省略でき
るとともに基板に対する接着の手間が省け、精度の良い
ものを安価に提供できる。
In addition, since the centering member 20 is integrally molded with the substrate 6, it is possible to omit the formation of a fitting convex portion on the inner diameter portion of the substrate, which requires high precision, as in the case where the centering member 20 is constructed as a separate member. The trouble of adhering to the substrate can be saved, and products with high precision can be provided at low cost.

なお、上述の一実施例において、本発明の情報記憶媒体
1を磁気的に吸引する磁気形成部材14を磁石12とヨ
ーク13で構成し、ヨーク13が内径部と外径部の両方
に立上部13a、13t)を有する構成としたものに付
いて説明したが、これに限らず、たとえば内径部のみに
立上部を有したものであっても良く、また、外径部のみ
に立上部を有したものであっても良い。ざらには、磁気
形成部材14をヨーク13を除いた磁石12のみで構成
しても良い。
In the embodiment described above, the magnetic forming member 14 that magnetically attracts the information storage medium 1 of the present invention is composed of the magnet 12 and the yoke 13, and the yoke 13 has raised portions on both the inner diameter portion and the outer diameter portion. 13a, 13t), but the structure is not limited to this, for example, it may have a raised portion only on the inner diameter portion, or it may have a raised portion only on the outer diameter portion. It may be something that has been done. Roughly speaking, the magnetism forming member 14 may be composed only of the magnet 12 without the yoke 13.

その他、本発明は本発明の要旨を変えない範囲で種々変
形実施可能なことは勿論である。
In addition, it goes without saying that the present invention can be modified in various ways without departing from the gist of the invention.

[発明の効果コ 本発明は、以上説明したように、磁気形成部材を収容し
たターンテーブルに装着されて回転駆動されるもので、
このターンテーブル側に磁気的に吸引される被吸引部材
が設けられた情報記憶媒体であって、上記被吸引部材が
、中心部に回転中心となる中心孔を有するとともに基板
に一体成形された芯出し部材と、この芯出し部材に取付
けられた磁性部材とを具備してなるしたものである。し
たがって、情報記憶媒体がターンテーブルに磁気的に吸
引装着が可能となるから、これにより従来必要としてい
た装置の薄型化、軽母化、低コスト化等の障害となるク
ランパを不要とした状態で装着することが可能となる。
[Effects of the Invention] As explained above, the present invention is mounted on a turntable containing a magnetic forming member and driven to rotate.
The information storage medium is provided with a member to be magnetically attracted to the turntable, the member to be attracted having a center hole serving as a rotation center in the center and a core integrally molded on the substrate. The centering member includes a centering member and a magnetic member attached to the centering member. Therefore, since the information storage medium can be magnetically attached to the turntable, this eliminates the need for a clamper, which is an obstacle to making the device thinner, lighter, and lower in cost, which was previously required. It becomes possible to install it.

また、基板の中心部に取付けられる被吸引部材が、基板
に一体成形された芯出し部材と、この芯出し部材に取付
けられた磁性部材とから構成したから、基板と磁性部材
の熱膨張係数の違いによる基板の歪みを防止でき、安定
した情報処理が可能となるといった効果を奏する。
In addition, since the attracted member attached to the center of the board is composed of a centering member integrally molded on the board and a magnetic member attached to this centering member, the coefficient of thermal expansion of the board and the magnetic member is This has the effect of preventing distortion of the board due to differences and enabling stable information processing.

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

第1図〜第4図は本発明の一実施例を示すもので、第1
図は情報記憶媒体の未装着状態を一部断面して示す概略
的構成説明図、第2図は情報記憶媒体を装着した状態を
一部断面して示す概略的構成説明図、第3図は要部であ
る被吸引部材の平面図、第4図は被吸引部材を構成する
芯出し部材と磁性部材との取付は手段を示す分解斜視図
、第5図〜第7図はそれぞれ異なる従来例および先行技
術例の装着状態を示す概略的断面図である。 1・・・情報記憶媒体(ディスク)、4・・・ターンテ
ーブル、6・・・基板、8・・・被吸引部材、10・・
・中心孔、12・・・磁石、14・・・磁気形成部材、
20・・・芯出し部材、21・・・磁性部材、22・・
・取付は手段、23・・・被係合部、24・・・係、止
爪。 出願人代理人 弁理士 鈴 江 武 彦第5図 第6図 第7図 手続補正書 昭和61闇2け0日 特許庁長官 黒 1)明 雄 殿 1、事件の表示 特願昭61−263354号 2、発明の名称 情報記憶媒体 3、補正をする者 事件との関係 特許出願人 (307)株式会社 東芝 (ほか1名)4、代理人 東京都千代田区霞が関3丁目7番2号UB[ビル6、補
正の対象 図  面 7、補正の内容
Figures 1 to 4 show one embodiment of the present invention.
The figure is a schematic configuration explanatory diagram partially showing a state in which the information storage medium is not installed, FIG. 2 is a schematic configuration explanatory diagram partially showing a state in which the information storage medium is installed, FIG. 4 is an exploded perspective view showing the means for attaching the centering member and magnetic member that constitute the attracted member, and FIGS. 5 to 7 are different conventional examples. and FIG. 9 is a schematic cross-sectional view showing a state in which the prior art example is attached. DESCRIPTION OF SYMBOLS 1... Information storage medium (disk), 4... Turntable, 6... Substrate, 8... Member to be attracted, 10...
- Center hole, 12... Magnet, 14... Magnetic formation member,
20... Centering member, 21... Magnetic member, 22...
- Attachment is by means, 23... engaged part, 24... latching, stopper. Applicant's representative Patent attorney Takehiko Suzue Figure 5 Figure 6 Figure 7 Procedural amendments 1988, Dark 2,0 Days Commissioner of the Patent Office Black 1) Akio Tono 1, Case Indication Patent Application No. 1983-263354 2. Name of the invention Information storage medium 3. Relationship with the person making the amendment Patent applicant (307) Toshiba Corporation (and 1 other person) 4. Agent UB [Building, 3-7-2 Kasumigaseki, Chiyoda-ku, Tokyo] 6. Drawings subject to correction 7. Contents of correction

Claims (4)

【特許請求の範囲】[Claims] (1)磁気形成部材を収容したターンテーブルに装着さ
れて回転駆動されるもので、このターンテーブル側に磁
気的に吸引される被吸引部材が設けられた情報記憶媒体
であつて、上記被吸引部材が、中心部に回転中心となる
中心孔を有するとともに基板に一体成形された芯出し部
材と、この芯出し部材に取付けられた磁性部材とを具備
してなることを特徴とする情報記憶媒体。
(1) An information storage medium that is attached to a turntable containing a magnetic forming member and driven to rotate, and is provided with an attracted member that is magnetically attracted to the turntable, the information storage medium being An information storage medium characterized in that the member includes a centering member having a center hole in the center serving as a center of rotation and integrally molded on a substrate, and a magnetic member attached to the centering member. .
(2)磁性部材は、芯出し部材に対して基板の面と垂直
な方向への動きが拘束され、基板の面と平行な方向には
わずかに移動できるように取付け手段を介して取付けら
れていることを特徴とする特許請求の範囲第1項記載の
情報記憶媒体。
(2) The magnetic member is attached to the centering member via an attachment means so that its movement in a direction perpendicular to the plane of the substrate is restricted, but it can move slightly in a direction parallel to the plane of the substrate. The information storage medium according to claim 1, characterized in that:
(3)取付け手段が、芯出し部材に形成された被係止部
と、磁性部材に形成され上記被係止部に係合する係止爪
とからなることを特徴とする特許請求の範囲第2項記載
の情報記憶媒体。
(3) The attachment means comprises a locked portion formed on the centering member and a locking pawl formed on a magnetic member and engaged with the locked portion. The information storage medium according to item 2.
(4)基板は、中央部に芯出し部材を形成する円板状凹
部を有していることを特徴とする特許請求の範囲第1項
記載の情報記憶媒体。
(4) The information storage medium according to claim 1, wherein the substrate has a disk-shaped recess forming a centering member in the center.
JP61263354A 1986-11-05 1986-11-05 Information storage medium Expired - Lifetime JP2543860B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61263354A JP2543860B2 (en) 1986-11-05 1986-11-05 Information storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61263354A JP2543860B2 (en) 1986-11-05 1986-11-05 Information storage medium

Publications (2)

Publication Number Publication Date
JPS63117382A true JPS63117382A (en) 1988-05-21
JP2543860B2 JP2543860B2 (en) 1996-10-16

Family

ID=17388312

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61263354A Expired - Lifetime JP2543860B2 (en) 1986-11-05 1986-11-05 Information storage medium

Country Status (1)

Country Link
JP (1) JP2543860B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63122955U (en) * 1987-02-02 1988-08-10
JPH03130060U (en) * 1990-04-09 1991-12-26

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61208684A (en) * 1985-03-13 1986-09-17 Fujitsu Ltd Flexible magnetic disk

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61208684A (en) * 1985-03-13 1986-09-17 Fujitsu Ltd Flexible magnetic disk

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63122955U (en) * 1987-02-02 1988-08-10
JPH03130060U (en) * 1990-04-09 1991-12-26
JP2524062Y2 (en) * 1990-04-09 1997-01-29 ソニー株式会社 Disk rotation operation tool

Also Published As

Publication number Publication date
JP2543860B2 (en) 1996-10-16

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