JPS61250882A - Disc cartridge - Google Patents

Disc cartridge

Info

Publication number
JPS61250882A
JPS61250882A JP9246685A JP9246685A JPS61250882A JP S61250882 A JPS61250882 A JP S61250882A JP 9246685 A JP9246685 A JP 9246685A JP 9246685 A JP9246685 A JP 9246685A JP S61250882 A JPS61250882 A JP S61250882A
Authority
JP
Japan
Prior art keywords
recording medium
shutter
opening
cartridge
gap
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
JP9246685A
Other languages
Japanese (ja)
Inventor
Yoshihiro Sato
佐藤 孔宏
Shinji Okada
真次 岡田
Yukio Katsuyama
幸男 勝山
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP9246685A priority Critical patent/JPS61250882A/en
Publication of JPS61250882A publication Critical patent/JPS61250882A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To prevent the damage of the information face of a recording medium by providing a projected part onto a non-information region at the inner circumference of the recording medium in order to form a gap between a shutter and a recording medium. CONSTITUTION:In order to form the gap between the shutter 9 and the recording medium 3, the projection 18 is provided on the non-information region B at the inner circumference of the recording medium 3'. In case of storage or transportation of the disc cartridge 1', each opening of upper and lower cases 4, 5 is closed by a shutter 9. In this case, when an external force F is exerted to the shutter 9 from the openings 6, 7 of the upper/lower cases 4, 5, since the movement of the shutter 9s is retained by the prjection 18, the gap remains between the shutter 9 and the recording medium 3. Thus, the damage of the information face of the recording medium 3 is prevented.

Description

【発明の詳細な説明】 〔概要〕 円板状記録媒体を内部に収容したカートリッジケースの
開口部より塵埃、指紋の付着等を保護する為に、カート
リッジケース内部に設けたシャッタが外力を受けても、
シャッタが記録媒体情報面をキズ付けないような凸部を
設けた構造とした。
[Detailed Description of the Invention] [Summary] In order to protect the opening of the cartridge case containing a disc-shaped recording medium from dust, fingerprints, etc., a shutter provided inside the cartridge case receives external force. too,
The structure has a convex portion that prevents the shutter from scratching the information surface of the recording medium.

〔産業上の利用分野〕[Industrial application field]

本発明はカートリッジケース内部に設けた開口部を遮蔽
するシャッタが外部より加圧変形され、記録媒体情報面
に接触しキズ付けることを防止したディスクカートリッ
ジに関する。
The present invention relates to a disk cartridge in which a shutter for shielding an opening provided inside a cartridge case is deformed by pressure from the outside to prevent it from contacting and damaging the information surface of a recording medium.

カートリッジケース内に収納1された円板状記録媒体は
、例えば同心円状に情報を記録し、又はそれを再生する
為にカートリッジケースには、ヘッドが挿入される開口
部と記録媒体を回転する為のモータスピンドル挿入開口
部等を持っている。
A disk-shaped recording medium 1 housed in a cartridge case has an opening into which a head is inserted and an opening for rotating the recording medium, for example, in order to concentrically record information or reproduce it. It has a motor spindle insertion opening, etc.

上記記録媒体は特に光ディスクにおいて、情報密度が高
く、塵埃及び指紋等の付着或いは機械的損傷が、ビット
エラーを生じ非常に問題となる。
The above-mentioned recording medium, especially an optical disk, has a high information density, and the adhesion of dust, fingerprints, etc., or mechanical damage causes bit errors, which is a serious problem.

この塵埃、指紋等の付着の機会を出来るだけ少なくする
為に、記録媒体が駆動装置内に装填されている時は、上
記開口部が開口され、一方保存、携帯時のように駆動装
置外にある時は、開口部が閉口されるようなシャッタが
設けられている。
In order to minimize the chance of dust, fingerprints, etc. adhering to the recording medium, the above opening is opened when the recording medium is loaded into the drive device, while the opening is opened when the recording medium is stored or carried outside the drive device. Sometimes a shutter is provided such that the opening is closed.

上記シャンクはカートリッジケースと記録媒体の間に設
けられた構造であり、シャッタと記録媒体の隙間は小さ
い為、シャッタが容易に記録媒体をキズ付は易く、シャ
ッタによりキズ付けられないようなディスクカートリッ
ジが要望されている。
The above-mentioned shank has a structure that is installed between the cartridge case and the recording medium, and the gap between the shutter and the recording medium is small, so the shutter can easily scratch the recording medium, and the disk cartridge cannot be scratched by the shutter. is requested.

〔従来の技術〕[Conventional technology]

ディスクカートリッジとして、従来例えば第6図に示す
ような光デイスクカートリッジがある。
2. Description of the Related Art Conventionally, for example, there is an optical disk cartridge as shown in FIG. 6 as a disk cartridge.

第6図は光デイスクカートリッジを示す図で、図(イ)
は平面図、(ロ)は側面図である。
Figure 6 is a diagram showing an optical disk cartridge, and Figure (a)
is a plan view, and (b) is a side view.

第6図において、光デイスクカートリッジ1 (以下デ
ィスクカートリッジlと云う)はセンタホール(モータ
スピンドルが挿入される穴)2を有する記録媒体3と、
該記録媒体3を内部に上ケース4、下ケース5で覆って
いる。該上ケース4には、センタホール2を露出した中
央穴6及び中央穴6に対し放射状に設けられた記録再生
用開口部7とインデックス検出用開口部8を有し、また
記録媒体3は両面を使う構造であり、下ケース5と上ケ
ース4は同形である。さらに、上下ケース4.5には、
内側をスライドして中央穴6、記録再生用開口部7、イ
ンデックス検出用開口部8を遮蔽する為のシャッタ9が
あり、該シャッタ9の一端aを回転中心とし、長手方向
先端すにケース上ボビン10に巻かれたバネ11が連結
され、絶えず図の左方向に張力される。また該先端すに
はスチールヘルド12の一端が固定され、他端が駆動装
置のピン13と係合して移動する四角形の案内部材14
とネジ15で固定される(第7図参照)。なお、16は
スチールベルト12をガイドするコロで、17は案内部
材14の移動溝である。
In FIG. 6, an optical disk cartridge 1 (hereinafter referred to as disk cartridge 1) includes a recording medium 3 having a center hole (a hole into which a motor spindle is inserted) 2;
The recording medium 3 is covered inside with an upper case 4 and a lower case 5. The upper case 4 has a central hole 6 exposing the center hole 2, a recording/reproducing opening 7 and an index detecting opening 8 provided radially to the central hole 6, and the recording medium 3 has both sides. The lower case 5 and upper case 4 have the same shape. Furthermore, in the upper and lower cases 4.5,
There is a shutter 9 that slides on the inside to cover the central hole 6, the recording/reproducing opening 7, and the index detection opening 8, and one end a of the shutter 9 is the center of rotation, and the longitudinal end is located on the case. A spring 11 wound around a bobbin 10 is connected and constantly tensioned to the left in the figure. Further, one end of a steel heald 12 is fixed to the tip end, and the other end engages with a pin 13 of a drive device to move a rectangular guide member 14.
and are fixed with screws 15 (see Fig. 7). Note that 16 is a roller that guides the steel belt 12, and 17 is a groove for moving the guide member 14.

この四角形状の案内部材14が駆動装置のピン13と係
合して14′に移動することにより、シャッタ9は開口
部を開口し、また駆動装置のピン13と案内部材14の
係合が解除されることにより、案内部材14はバネ11
により復帰され、シャッタ9は閉口する。
When this rectangular guide member 14 engages with the pin 13 of the drive device and moves to 14', the shutter 9 opens the opening, and the engagement between the pin 13 of the drive device and the guide member 14 is released. As a result, the guide member 14 is
The shutter 9 is returned to its original state and the shutter 9 is closed.

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

第6図(イ)(ロ)に示す従来ディスクカートリッジ1
のシャッタ9は上下ケース4.5の内部にあって、一端
を回転中心とし、長手方向の他端を移動させることによ
り、上下ケース4.5の中央穴6、記録再生用開口部7
、インデックス検出用開口部8を開口したり、閉口たり
する。
Conventional disk cartridge 1 shown in Fig. 6 (a) and (b)
The shutter 9 is located inside the upper and lower cases 4.5, and by moving the other end in the longitudinal direction with one end as the center of rotation, the shutter 9 is opened to the center hole 6 of the upper and lower cases 4.5 and the recording/reproducing opening 7.
, the index detection opening 8 is opened or closed.

例えば、ディスクカートリッジ1が駆動装置外にある保
存、携帯時は、シャッタ9で上下ケース4.5の各開口
部が閉口されている。
For example, when the disk cartridge 1 is stored or carried outside the drive device, each opening of the upper and lower cases 4.5 is closed by the shutter 9.

ところが、シャッタ9と記録媒体3の隙間(0゜8〜1
1m)は小さく、かつシャッタ9は厚さ1.6鶴のアル
ミ材料で長い板である。その為、例えば第7図に示すよ
うに開0口部7に外力Fがか\ると、点線のようにシャ
ッタ9が変形し、記録媒体3の情報面Aと接触し、シャ
ッタ9のエッヂで情報面Aをキズ付け、ビットエラーと
なると云う問題点がある。また、上下ケース4.5の樹
脂材も薄く、外力を受けるとシャッタ9を変形し易く上
記と同様のことが言える。
However, the gap between the shutter 9 and the recording medium 3 (0°8~1
1 m) is small, and the shutter 9 is a long plate made of aluminum material with a thickness of 1.6 m. Therefore, for example, when an external force F is applied to the aperture 7 as shown in FIG. There is a problem in that the information surface A is damaged and bit errors occur. Further, the resin material of the upper and lower cases 4.5 is also thin, and the shutter 9 is easily deformed when subjected to external force, and the same can be said of the above.

又、ディスクカートリッジ1が駆動装置外にある場合、
第8図のように重力により下方のシャッタ9と記録媒体
3は接しており、駆動装置に挿入されることにより、記
録媒体3が点線のように上下ケース4.5の中央に移動
されながら、(第6図参照)案内部材14の移動により
シャッタ9が開口する。
Also, if the disk cartridge 1 is outside the drive device,
As shown in FIG. 8, the lower shutter 9 and the recording medium 3 are in contact with each other due to gravity, and by being inserted into the drive device, the recording medium 3 is moved to the center of the upper and lower cases 4.5 as shown by the dotted line. (See FIG. 6) As the guide member 14 moves, the shutter 9 opens.

シャッタ9の始動時は記録媒体3と接している為、シャ
ッタ9により記録媒体3をキズ付けると云う問題点があ
る。
Since the shutter 9 is in contact with the recording medium 3 when it is started, there is a problem in that the recording medium 3 is scratched by the shutter 9.

〔問題点を解決するだめの手段〕[Failure to solve the problem]

第1図は本発明の詳細な説明する図で、図は従来の第6
図(伺(7)P−P断面に対応する部分の本発明の断面
図である。
FIG. 1 is a diagram explaining the present invention in detail, and the figure is a diagram showing the conventional sixth embodiment.
Figure (7) is a sectional view of the present invention of a portion corresponding to the PP cross section.

図において、ディスクカートリッジ1′の上下ケース4
.5及びシャッタ9は第6図(イ)の従来のディスクカ
ートリッジ1のものと全く同じである。本発明の記録媒
体3′はシャッタ9と記録媒体3′の間に、隙間を形成
する為に、凸部18を記録媒体3内周の非情a領域B上
に設けたものである(記録媒体3は両面構造であり、凸
部18を両面に設ける)。その他の部分は従来の第6図
(イ)と同じであるので、説明は省略する。
In the figure, the upper and lower cases 4 of the disk cartridge 1'
.. 5 and shutter 9 are exactly the same as those of the conventional disk cartridge 1 shown in FIG. 6(A). In the recording medium 3' of the present invention, a convex portion 18 is provided on the insensitive area B on the inner circumference of the recording medium 3 in order to form a gap between the shutter 9 and the recording medium 3'. 3 has a double-sided structure, and the convex portions 18 are provided on both sides). The other parts are the same as those in the conventional FIG. 6(a), so their explanation will be omitted.

〔作用〕[Effect]

即ち、第1図のディスクカートリッジ1′は上下ケース
4.5内部にシャッタ9があって、保存、携帯時のよう
にディスクカートリッジ1′が駆動装置外にある場合、
上下ケース4.5の各開口部はシャッタ9で閉口されて
いる。
That is, the disk cartridge 1' shown in FIG. 1 has a shutter 9 inside the upper and lower cases 4.5, and when the disk cartridge 1' is outside the drive unit, such as when storing or carrying,
Each opening of the upper and lower cases 4.5 is closed by a shutter 9.

シャッタ9が上下ケース4.5の開口部6.7より外力
Fを受けた場合、第2図で示すように記録媒体3の内周
の非情報領域Bに設けた凸部18で、シャッタ9が受は
止められ点線のようになり、記録媒体3と接触しないの
で、情報面をキズ付けない。
When the shutter 9 receives external force F from the opening 6.7 of the upper and lower cases 4.5, the convex portion 18 provided in the non-information area B on the inner circumference of the recording medium 3 causes the shutter 9 Since the receiver is stopped and becomes like a dotted line and does not come into contact with the recording medium 3, the information surface will not be damaged.

〔実施例〕〔Example〕

第3図は本発明の詳細な説明する図である。 FIG. 3 is a diagram explaining the present invention in detail.

なお、企図を通じて同一符号は同一対称物を示す。Note that the same reference numerals refer to the same objects throughout the design.

第3図において、本発明の記録媒体3′はシャッタ9と
記録媒体3′の間に、隙間を形成する為に、(第1図参
照)凸部18を記録媒体3′内周の非情報領域B上に設
けている(記録媒体3′は両面使用構造で、凸部18を
両面に設ける)。
In FIG. 3, the recording medium 3' of the present invention has a convex portion 18 (see FIG. 1) on the inner circumference of the recording medium 3' to form a gap between the shutter 9 and the recording medium 3'. It is provided on area B (the recording medium 3' has a double-sided structure, and the convex portions 18 are provided on both sides).

上記凸部18は記録媒体3′自体で形成しているが、こ
れを現在使用している記録媒体の機暦、N。
The convex portion 18 is formed by the recording medium 3' itself, and the convex portion 18 is formed by the machine history of the recording medium currently used.

を表示すラベルを記録媒体3内周の非情報領域Bに貼り
付は形成してもよい。
A label displaying the following may be pasted or formed on the non-information area B on the inner circumference of the recording medium 3.

その他の部分は従来の第6図(イ)と同じであるので、
説明は省略する。
The other parts are the same as the conventional figure 6 (a), so
Explanation will be omitted.

ディスクカートリッジ1′の保存、携帯時は上下ケース
4.5の各開口部はシャッタ9で閉口されている。この
場合1、(第2図参照)上下ケース4.5の開口部6.
7よりシャッタ9に外力Fを受けた時、シャッタ9の移
動は上記凸部18で受は止められ、点線のようになり、
シャッタ9と記録媒体3″の間に隙間があり記録媒体3
の情報面をキズ付けることはない。
When storing or carrying the disk cartridge 1', each opening of the upper and lower cases 4.5 is closed with a shutter 9. In this case, 1. (see Figure 2) opening 6. of upper and lower cases 4.5.
When the external force F is applied to the shutter 9 from 7, the movement of the shutter 9 is stopped by the convex portion 18, as shown by the dotted line,
There is a gap between the shutter 9 and the recording medium 3'', and the recording medium 3
It will not damage the information side of.

第4図は本発明の別の実施例であって、そのX−X断面
を第5図に示す。
FIG. 4 shows another embodiment of the present invention, and FIG. 5 shows a section taken along line X--X.

第4図に示すディスクカートリッジ1″の上下ケース4
′、5′は、第6図に示す従来のディスクカートリッジ
1のシャッタ9と記録媒体3の間に隙間を設ける為に、
記録媒体3の非情報領域である外縁部の一周(シャッタ
9の移動領域を除き)又は一部を支持する凸部19を設
けたものである。
Upper and lower cases 4 of disk cartridge 1'' shown in Fig. 4
', 5' are used to provide a gap between the shutter 9 and the recording medium 3 of the conventional disk cartridge 1 shown in FIG.
A convex portion 19 is provided to support one circumference (excluding the movement area of the shutter 9) or a part of the outer edge portion of the recording medium 3, which is a non-information area.

その他は従来と全く同じ構造であり、説明は省略する。The rest of the structure is exactly the same as the conventional one, and the explanation will be omitted.

ディスクカートリッジ1゛′は駆動装置外にある不使用
時は、記録媒体3は重力により下方のケースの凸部19
と接し、記録媒体3とシャック9とに隙間がある。使用
時にディスクカートリッジI IIを駆動装置に挿入し
た場合、シャッタ9は記録媒体3に接することなく移動
出来き、情報面をキズ付けない。
When the disk cartridge 1' is not in use and is outside the drive unit, the recording medium 3 is moved by gravity to the protrusion 19 of the lower case.
There is a gap between the recording medium 3 and the shack 9. When the disk cartridge III is inserted into the drive device during use, the shutter 9 can move without contacting the recording medium 3 and does not damage the information surface.

以上のように記録媒体3内周又は外周部の非情報領域に
凸部を備え、シャッタ9と記録媒体3の間に隙間を設け
ることにより、シャッタ9による記録媒体3の情報面を
キズ付けることが防げる。
As described above, by providing a convex portion in the non-information area on the inner or outer circumference of the recording medium 3 and providing a gap between the shutter 9 and the recording medium 3, the information surface of the recording medium 3 can be prevented from being scratched by the shutter 9. can be prevented.

〔発明の効果〕〔Effect of the invention〕

以上説明したように、本発明によれば記録媒体内周又は
外周部の非情報領域の凸部により、シャツタによる記録
媒体の情報面をキズ付けることを防ぐことが出来る。
As described above, according to the present invention, it is possible to prevent the information surface of the recording medium from being scratched by the shutter due to the convex portion in the non-information area on the inner or outer circumference of the recording medium.

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

第1図は本発明の詳細な説明する図、 第2図は本発明の外力によるシャッタ加圧を説明する図
、 第3図は本発明の詳細な説明する図、 第4図は本発明の別の実施例を説明する図、第5図は第
4図のX−X断面図、 第6図は従来の光デイスクカートリッジを説明する図、 第7図は第6図のP−P断面図、 第8図は記録媒体の始動状態を説明するための図である
。 図において、 1′、1″はディスクカートリッジ、 3′は記録媒体、 4は上ケース、 5は下ケース、 6は中央穴、 7はヘッド挿入開口部、 9はシャッタ、 罠 α) 今℃へ (”)     =へ X  史
Fig. 1 is a diagram explaining the present invention in detail, Fig. 2 is a diagram explaining the shutter pressurization by external force of the present invention, Fig. 3 is a diagram explaining the present invention in detail, and Fig. 4 is a diagram explaining the present invention in detail. Figure 5 is a sectional view taken along line XX in Figure 4, Figure 6 is a diagram illustrating a conventional optical disk cartridge, and Figure 7 is a sectional view taken along line PP in Figure 6. , FIG. 8 is a diagram for explaining the starting state of the recording medium. In the figure, 1' and 1'' are the disk cartridges, 3' is the recording medium, 4 is the upper case, 5 is the lower case, 6 is the center hole, 7 is the head insertion opening, 9 is the shutter, and trap α) Now to ℃ (”) = to

Claims (3)

【特許請求の範囲】[Claims] (1)カートリッジケース(1′)内部に円板状の記録
媒体(3′)を収容し、該記録媒体(3′)に対して情
報の記録再生を行なう開口部(7)、並びに該記録媒体
を回転させる為のスピンドル係合開口部(6)を前記カ
ートリッジケース(1′)に有し、かつ各開口部を所要
時に遮蔽或いは開口できる開閉可能なシャッタ(9)を
カートリッジケース(1′)内部に有し、かつ該シャッ
タ(9)を駆動装置側の開閉ピンでカートリッジケース
(1′)外部より開閉可能にさせるための案内部材を有
するディスクカートリッジ(1′)であって、前記シャ
ッタ(9)と前記記録媒体(3′)の間に、隙間を形成
する為の凸部(18)を記録媒体(3′)内周又は外周
の非情報領域に設けたことを特徴とするディスクカート
リッジ。
(1) A disc-shaped recording medium (3') is housed inside the cartridge case (1'), and an opening (7) for recording and reproducing information on the recording medium (3'), and the recording The cartridge case (1') has a spindle engaging opening (6) for rotating the medium, and an openable/closable shutter (9) that can cover or open each opening as required. ), the disc cartridge (1') having a guide member inside the cartridge case (1') for opening and closing the shutter (9) from the outside of the cartridge case (1') with an opening/closing pin on the drive device side; A disc characterized in that a convex portion (18) for forming a gap between (9) and the recording medium (3') is provided in a non-information area on the inner or outer circumference of the recording medium (3'). cartridge.
(2)上記隙間を形成する為の凸部(18)は、上記録
媒体(3′)内周の非情報領域上にラベルを貼付して形
成したことを特徴とする特許請求の範囲第1項記載のデ
ィスクカートリッジ。
(2) The convex portion (18) for forming the gap is formed by pasting a label on the non-information area on the inner periphery of the upper recording medium (3'). Disk cartridge as described in section.
(3)上記シャッタ(9)と記録媒体(3′)の間の隙
間は、上記シャッタ(9)の移動範囲を除く記録媒体外
周の非情報領域の一周又は一部を支持して形成したこと
を特徴とする特許請求の範囲第1項記載のディスクカー
トリッジ。
(3) The gap between the shutter (9) and the recording medium (3') is formed by supporting one or a part of the non-information area on the outer periphery of the recording medium excluding the movement range of the shutter (9). A disc cartridge according to claim 1, characterized in that:
JP9246685A 1985-04-30 1985-04-30 Disc cartridge Pending JPS61250882A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9246685A JPS61250882A (en) 1985-04-30 1985-04-30 Disc cartridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9246685A JPS61250882A (en) 1985-04-30 1985-04-30 Disc cartridge

Publications (1)

Publication Number Publication Date
JPS61250882A true JPS61250882A (en) 1986-11-07

Family

ID=14055118

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9246685A Pending JPS61250882A (en) 1985-04-30 1985-04-30 Disc cartridge

Country Status (1)

Country Link
JP (1) JPS61250882A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5537389A (en) * 1992-11-30 1996-07-16 Hitachi Maxwell, Ltd. Disk cartridge having a single closing energizer for closing two independently opened shutters

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5827415U (en) * 1981-08-18 1983-02-22 中前 富士男 Architectural window block
JPS6051674B2 (en) * 1978-12-28 1985-11-15 富士電機株式会社 Internal inspection device for reactor fuel handling equipment

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6051674B2 (en) * 1978-12-28 1985-11-15 富士電機株式会社 Internal inspection device for reactor fuel handling equipment
JPS5827415U (en) * 1981-08-18 1983-02-22 中前 富士男 Architectural window block

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5537389A (en) * 1992-11-30 1996-07-16 Hitachi Maxwell, Ltd. Disk cartridge having a single closing energizer for closing two independently opened shutters

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