JPS61276187A - Disk cartridge - Google Patents
Disk cartridgeInfo
- Publication number
- JPS61276187A JPS61276187A JP9247885A JP9247885A JPS61276187A JP S61276187 A JPS61276187 A JP S61276187A JP 9247885 A JP9247885 A JP 9247885A JP 9247885 A JP9247885 A JP 9247885A JP S61276187 A JPS61276187 A JP S61276187A
- Authority
- JP
- Japan
- Prior art keywords
- shutter
- recording medium
- medium
- opening
- disk cartridge
- 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
Links
Abstract
Description
【発明の詳細な説明】
〔概要〕
カートリッジケースに収納された記録媒体を、外部から
の塵埃、指紋の付着等を保護する為に、不使用時は開口
部をシャッタで遮蔽し、使用時に開口部を開口させてい
る。シャッタの復帰力を利用した媒体押えを設け、該媒
体押えにより輸送時、保管時の記録媒体を固定し、ゴミ
の発生を防ぎリードエラーを防止する。[Detailed Description of the Invention] [Summary] In order to protect the recording medium housed in the cartridge case from dust and fingerprints from the outside, the opening is covered with a shutter when not in use, and the opening is closed when in use. The section is open. A medium holder is provided that utilizes the return force of the shutter, and the medium holder fixes the recording medium during transportation and storage to prevent the generation of dust and read errors.
本発明はカートリッジケースに収納された記録媒体(光
ディスク)を塵埃、指紋等から保護する為に設けた開閉
可能なシャッタの復帰力を用い、記録媒体を固定しゴミ
の発生を防ぎ、リードエラーを防止したディスクカート
リッジに関する。The present invention uses the return force of a shutter that can be opened and closed to protect the recording medium (optical disk) housed in a cartridge case from dust, fingerprints, etc., fixes the recording medium, prevents dust, and prevents read errors. Concerning the prevented disc cartridge.
カートリッジケース内に収納された記録媒体は、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挿入開口部を持っている。The recording medium housed in the cartridge case has an opening into which a head is inserted into the cartridge case and a motor insertion opening to rotate the recording medium, for example, in order to concentrically record information or reproduce it. have.
一般に情報密度が高い記録媒体(光ディスク)は塵埃、
指紋等の付着或いは機体的損傷が非常に問題となる。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
部は開口され、一方探管、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シャッタが設けられてい
る。。In general, recording media (optical discs) with high information density are dusty,
Fingerprints or other damage to the aircraft body is a serious problem. In order to reduce the chances of dust, fingerprints, etc. adhering as much as possible,
When the recording medium is loaded into the drive device, the opening is opened, and when the recording medium is outside the drive device, such as when being carried around, a shutter is provided to close the opening. . .
記録媒体がカートリッジケース内で回転される為、記録
媒体とケース内壁の隙間は1〜1.5flある。Since the recording medium is rotated within the cartridge case, there is a gap of 1 to 1.5 fl between the recording medium and the inner wall of the case.
その為、輸送、保管時に記録媒体がケース内部でガタつ
きゴミを発生させ、そのゴミが記録媒体に付着しリード
エラーとなる。そこで、ゴミを発生させないようなディ
スクカートリッジが要望されている。Therefore, during transportation and storage, the recording medium rattles inside the case and generates dust, which adheres to the recording medium and causes a read error. Therefore, there is a demand for a disk cartridge that does not generate dust.
第2図は従来の光デイスクカートリッジで、図(イ)・
は平面図、図(ロ)は側面図である。Figure 2 shows a conventional optical disk cartridge.
is a plan view, and figure (b) is a side view.
図において、ディスクカートリッジ1はセンタホール(
モータ軸が挿入される穴)2を有する記録媒体3と、該
記録媒体3の外側を上下ケース4.5で覆っている。該
上下ケース4.5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ヘッド挿入
開口部7とインデックス検出器開口部8を有する。さら
に、上下ケース4.5の内側をスライドして中央穴6、
ヘッド挿入開口部7、インデックス検出器開口部8を遮
蔽する為のシャ7タ9があり、該シャッタ9は一端aに
回転中心を持ち、長手方向の先端すはケースに固定され
たボビン10に巻かれたバネ11を連結し、絶えず図の
左方向に張力される。またスチールベルト12の一端は
該先端すに固定され、多端は駆動装置のピン13と係合
して移動する四角形の案内部材14に固定される。なお
、15はスチールベルト12をガイドするコロである。In the figure, the disk cartridge 1 has a center hole (
A recording medium 3 having a hole (2) into which a motor shaft is inserted, and an upper and lower case 4.5 covering the outside of the recording medium 3. The upper and lower cases 4.5 have a central hole 6 exposing the center hole 2, a head insertion opening 7 and an index detector opening 8 provided radially with respect to the central hole 6. Furthermore, slide the inside of the upper and lower cases 4.5 into the center hole 6,
There is a shutter 9 for shielding the head insertion opening 7 and the index detector opening 8. The shutter 9 has its rotation center at one end a, and its longitudinal end is attached to a bobbin 10 fixed to the case. The wound springs 11 are connected and constantly tensioned to the left in the figure. Further, one end of the steel belt 12 is fixed to the tip end, and the other end is fixed to a rectangular guide member 14 that moves by engaging with a pin 13 of a drive device. Note that 15 is a roller that guides the steel belt 12.
上記案内部材14が駆動装置側のピン13と係合されて
、移動溝16内を移動し14’に位置することにより、
シャッタ9が移動し、上記開口部7.6.8を開口する
。When the guide member 14 is engaged with the pin 13 on the driving device side and moves within the movement groove 16 and is located at 14',
The shutter 9 is moved and opens said opening 7.6.8.
また駆動装置のピン13と案内部材14の保合を解除し
た時は、バネ11によりシャッタ9が復帰され、各開口
部を閉口する。Further, when the pin 13 of the driving device and the guide member 14 are released from each other, the shutter 9 is returned by the spring 11 to close each opening.
なお、上下ケース4.5には夫々光ディスク3の外周と
接する壁部17と、厚み方向と接する突起部18があり
、光ディスク3が内部で回転可能としている。The upper and lower cases 4.5 each have a wall portion 17 that contacts the outer periphery of the optical disc 3 and a protrusion 18 that contacts the thickness direction, allowing the optical disc 3 to rotate therein.
従来のディスクカートリッジ1は、内部で記録媒体3を
保持し回転させる為に、上下ケース4.5には夫々記録
媒体3の外周と接する壁部17と、厚み方向と接する突
起部18を設けている。In the conventional disk cartridge 1, in order to hold and rotate the recording medium 3 inside, the upper and lower cases 4.5 are provided with a wall 17 that contacts the outer periphery of the recording medium 3 and a protrusion 18 that contacts the thickness direction, respectively. There is.
記録媒体3の外周と上下ケース4.5の壁部17の隙間
は1〜1.5+nある。輸送時、保管時にこの隙間で記
録媒体3が、上下ケース4.5内部でガタつき、上記壁
部17及び突起部18と接してゴミを発生させる。その
ゴミが記録媒体3の表面に付着し、リードミスが生じる
という問題点があった。The gap between the outer periphery of the recording medium 3 and the wall portion 17 of the upper and lower cases 4.5 is 1 to 1.5+n. During transportation and storage, the recording medium 3 rattles inside the upper and lower cases 4.5 due to this gap, comes into contact with the wall portion 17 and the protrusion portion 18, and generates dust. There was a problem in that the dust adhered to the surface of the recording medium 3, resulting in read errors.
第1図は本発明の原理及び実施例を説明する図である。 FIG. 1 is a diagram explaining the principle and embodiments of the present invention.
第1図の本発明のディスクカートリッジ1′は第2図に
示す従来のディスクカートリッジ1において、シャッタ
9が上下ケース4.5の内側をスライドして各開口部6
.7.8を遮蔽した時、シャッタ9の先端と接する媒体
押え19を設けたものである。The disk cartridge 1' of the present invention shown in FIG. 1 is different from the conventional disk cartridge 1 shown in FIG.
.. 7.8 is provided with a medium presser 19 that comes into contact with the tip of the shutter 9 when the shutter 9 is shielded.
上記媒体押え19は樹脂等の材料で逆り形状とし、中央
の穴を持ち下ケース5に固定した軸20と係合させ回転
可能とし、媒体押え19の一端eは記録媒体3外周と接
し、多端fはシャッタ9の先端と接するようにする。The medium presser 19 is made of a material such as resin and has an inverted shape, and is rotatable by engaging the shaft 20 fixed to the lower case 5 with a hole in the center, and one end e of the medium presser 19 is in contact with the outer periphery of the recording medium 3, The other end f is arranged to be in contact with the tip of the shutter 9.
また、媒体押え19の軸20にバネ21を設け、媒体押
え19がシャッタ9と接してない時は、記録媒体3を押
し付けない方向の張力が働き、記録媒体3を押し付けな
い。Further, a spring 21 is provided on the shaft 20 of the medium presser 19, and when the medium presser 19 is not in contact with the shutter 9, a tension force acts in a direction that does not press the recording medium 3, so that the recording medium 3 is not pressed.
なお、ディスクカートリッジ1′の他の部分の構造は第
2図に示す従来のカートリッジと全く同じであり、説明
は省略する。The structure of the other parts of the disk cartridge 1' is exactly the same as that of the conventional cartridge shown in FIG. 2, and the explanation thereof will be omitted.
即ち、第1図において駆動装置側のピン13と案内部材
14が係合させると、該ピン13により案内部材14が
図の下方に移動され、シャッタ9は移動し遮蔽している
開口部7.6.8を開口する。この時、媒体押え19は
バネ21により時計方向に回転され、記録媒体3の固定
を解除し、読み/書き可能となる。That is, in FIG. 1, when the pin 13 on the driving device side and the guide member 14 are engaged, the guide member 14 is moved downward in the figure by the pin 13, and the shutter 9 moves to cover the opening 7. 6.Open 8. At this time, the medium presser 19 is rotated clockwise by the spring 21 to release the fixation of the recording medium 3 and become readable/writable.
また駆動装置側のピン13と案内部材14の保合を解除
した時、バネ11の復帰力により案内部材14が戻り、
シャッタ9は復旧され閉口する。この時、媒体押え19
がシャッタ9先端により回転され、記録媒体3側面を壁
部17に押し付は固定する。Further, when the pin 13 on the driving device side and the guide member 14 are released from each other, the guide member 14 returns due to the return force of the spring 11.
The shutter 9 is restored and closed. At this time, the medium presser 19
is rotated by the tip of the shutter 9 to press and fix the side surface of the recording medium 3 against the wall portion 17.
従って、輸送時、保管時は上記固定状態にあるので、記
録媒体3が上下ケース4.5内部で移動しない為、ゴミ
の発生が防げリードミスを防止出来る。。Therefore, since the recording medium 3 is in the fixed state during transportation and storage, the recording medium 3 does not move inside the upper and lower cases 4.5, thereby preventing the generation of dust and read errors. .
第1図は本発明の1実施例を示す内部平面図である。 FIG. 1 is an internal plan view showing one embodiment of the present invention.
第1図の本発明のディスクカートリッジ1′は第2図に
示す従来のディスクカートリッジ1と同様に、センタホ
ール(モータ軸が挿入される穴)2を有する記録媒体3
を上ケース4、下ケース5で覆っている。該上下ケース
4の中央穴6及び中央穴6に対し放射状に設けられたヘ
ッド挿入開口部7とインデックス検出器開口部8を有す
る。さらに、上下ケース4.5の内側をスライドして各
開口部6.7.8を遮蔽するシャッタ9があり、該シャ
ッタ9は一端aに回転中心を持ち、長手方向の先端すに
はケース上のボビン10に巻かれるバネ11を連結し、
絶えず図の左方向に張力し、該先端すにスチールベルト
12の一端が固定され、多端が駆動装置のピン13と係
合して移動する案内部材14に固定されている。なお1
5−1はコロ1.15−2はガイドで、スチールベルト
12と接する。17は壁部、18は突起部である。The disk cartridge 1' of the present invention shown in FIG. 1 is similar to the conventional disk cartridge 1 shown in FIG.
is covered by an upper case 4 and a lower case 5. The upper and lower cases 4 have a central hole 6, a head insertion opening 7 and an index detector opening 8 provided radially with respect to the central hole 6. Furthermore, there is a shutter 9 that slides inside the upper and lower cases 4.5 to cover each opening 6.7.8, the shutter 9 having a center of rotation at one end a, and a longitudinal end located above the case. Connect the spring 11 wound around the bobbin 10 of
One end of a steel belt 12 is fixed to the distal end of the steel belt 12, which is constantly tensioned to the left in the figure, and the other end is fixed to a guide member 14 which engages with a pin 13 of a drive device and moves. Note 1
5-1 is a roller 1, and 15-2 is a guide, which is in contact with the steel belt 12. 17 is a wall portion, and 18 is a protrusion portion.
本発明では、上記シャッタ9の閉口時、シャッタ9の先
端と接する媒体押え19を設ける。媒体押え19は樹脂
等の材料で逆り形状とし、一端eを記録媒体3外周と接
し、多端fをシャッタ9の先端と接し、中央に穴を持ち
下ケース5に固定した軸20と係合させ回転させる。In the present invention, a medium presser 19 is provided that contacts the tip of the shutter 9 when the shutter 9 is closed. The medium presser 19 is made of a material such as resin and has an inverted shape, has one end e in contact with the outer periphery of the recording medium 3, the other end f in contact with the tip of the shutter 9, has a hole in the center, and engages with a shaft 20 fixed to the lower case 5. and rotate it.
また、媒体押え19の軸20にバネ21を設け、媒体押
え19がシャッタ9と接してない時は、記録媒体3を押
し付けない方向の張力が働き、記録媒体3を押し付けな
い構造である。Further, a spring 21 is provided on the shaft 20 of the medium presser 19, and when the medium presser 19 is not in contact with the shutter 9, a tension force is applied in a direction that does not press the recording medium 3, so that the recording medium 3 is not pressed.
ディスクカートリッジ1′を駆動装置に挿入すると、駆
動装置側のピン13が案内部材14を押し下げると、ス
チールベルト12によりシャッタ9が遮蔽している開口
部6.7.8を開口するとともに、バネ21により媒体
押え19は記録媒体3の固定を解除し、読み/書き可能
とする。When the disk cartridge 1' is inserted into the drive device, the pin 13 on the drive device side pushes down the guide member 14, which opens the opening 6.7.8 that the shutter 9 is covered by the steel belt 12, and the spring 21 With this, the medium presser 19 releases the fixation of the recording medium 3 and makes it readable/writable.
また、ディスクカートリッジ1′を駆動装置より引き抜
くと、バネ11の復帰力により案内部材14が戻され、
シャッタ9が復旧して開口部6.7.8を閉口するとと
もに、バネ11によりシャッタ9が媒体押え19を回転
させ、媒体押え19は記録媒体3を壁部17側に押し付
は固定する。Furthermore, when the disk cartridge 1' is pulled out from the drive device, the guide member 14 is returned by the return force of the spring 11.
When the shutter 9 is restored and closes the opening 6.7.8, the spring 11 causes the shutter 9 to rotate the medium presser 19, and the medium presser 19 presses and fixes the recording medium 3 against the wall portion 17 side.
従って、輸送時、保管時は上記固定状態にあるので、記
録媒体3が上下ケース4.5内部で移動しない為、ゴミ
を発生せずリードミスが防止出来る。Therefore, since the recording medium 3 is in the fixed state during transportation and storage, the recording medium 3 does not move inside the upper and lower cases 4.5, so that no dust is generated and read errors can be prevented.
以上説明したように、本発明によれば輸送時、保管時に
記録媒体の保持機構によりゴミの発生が防げ、リードミ
スを防止出来る。As described above, according to the present invention, the holding mechanism of the recording medium can prevent dust from being generated during transportation and storage, and read errors can be prevented.
第1図は本発明の原理及び1実施例を説明する図、
第2図は従来の光デイスクカートリッジを説明する図で
ある。
図において、
1′はディスクカートリ、ジ、
2はセンタホール、
3は記録媒体、
4.5は上下ケース、
6は中央穴、
7はヘッド挿入開口部、
8はインデックス検出器開口部、
9はシャッタ、
10はボビン、
11はバネ、
12はスチールベルト、
13はピン、
14は案内部材、
15−1はコロ、15−2はガイド、
16は移動溝、
17は壁部、
18は突起部、
19は媒体押え、
20は軸、FIG. 1 is a diagram for explaining the principle and one embodiment of the present invention, and FIG. 2 is a diagram for explaining a conventional optical disk cartridge. In the figure, 1' is the disk cartridge, 2 is the center hole, 3 is the recording medium, 4.5 is the upper and lower cases, 6 is the center hole, 7 is the head insertion opening, 8 is the index detector opening, and 9 is the index detector opening. Shutter, 10 is a bobbin, 11 is a spring, 12 is a steel belt, 13 is a pin, 14 is a guide member, 15-1 is a roller, 15-2 is a guide, 16 is a moving groove, 17 is a wall part, 18 is a projection part , 19 is a medium presser, 20 is a shaft,
Claims (1)
(3)を収容し、該記録媒体(3)に対して情報の記録
又は再生を行なうヘッド挿入可能な開口部(7)、並び
に該記録媒体(3)を回転させる為のモータ挿入開口部
(6)、さらに記録媒体(3)上のインデックス信号を
検出する検出部挿入開口部(8)を前記カートリッジケ
ースに有し、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
クカートリッジであって、前記カートリッジケース(4
、5)に支軸(20)を持ち、該支軸(20)と係合し
回転可能な媒体押え(19)を設け、前記シャッタ(9
)の閉口時、該媒体押え(19)の一端がシャッタ(9
)の先端に押され、多端が記録媒体(3)を固定するこ
とを特徴とするディスカートリッジ。A disc-shaped recording medium (3) is housed inside the cartridge case (4, 5), and an opening (7) into which a head can be inserted for recording or reproducing information on the recording medium (3); The cartridge case has a motor insertion opening (6) for rotating the recording medium (3), and a detection unit insertion opening (8) for detecting an index signal on the recording medium (3), and each opening A disk cartridge having an openable/closable shutter (9) that can cover or open the portion when necessary, and a guide member for opening and closing the shutter (9) from outside the cartridge case using an opening/closing pin on the drive device side. There, the cartridge case (4
, 5) has a spindle (20), and is provided with a medium presser (19) that is rotatable and engaged with the spindle (20), and the shutter (9)
), one end of the medium presser (19) closes the shutter (9
), and the other end fixes the recording medium (3).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9247885A JPS61276187A (en) | 1985-04-30 | 1985-04-30 | Disk cartridge |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9247885A JPS61276187A (en) | 1985-04-30 | 1985-04-30 | Disk cartridge |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61276187A true JPS61276187A (en) | 1986-12-06 |
JPH0325865B2 JPH0325865B2 (en) | 1991-04-09 |
Family
ID=14055415
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9247885A Granted JPS61276187A (en) | 1985-04-30 | 1985-04-30 | Disk cartridge |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61276187A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62154390A (en) * | 1985-12-27 | 1987-07-09 | Matsushita Graphic Commun Syst Inc | Disk cartridge |
JPH0253280A (en) * | 1988-08-17 | 1990-02-22 | Asahi Chem Ind Co Ltd | Cartridge for optical disk |
EP0974972A2 (en) * | 1998-07-13 | 2000-01-26 | Sony Corporation | Disc cartridge |
-
1985
- 1985-04-30 JP JP9247885A patent/JPS61276187A/en active Granted
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62154390A (en) * | 1985-12-27 | 1987-07-09 | Matsushita Graphic Commun Syst Inc | Disk cartridge |
JPH0529981B2 (en) * | 1985-12-27 | 1993-05-06 | Matsushita Graphic Communic | |
JPH0253280A (en) * | 1988-08-17 | 1990-02-22 | Asahi Chem Ind Co Ltd | Cartridge for optical disk |
JP2729807B2 (en) * | 1988-08-17 | 1998-03-18 | 旭化成工業株式会社 | Optical disk cartridge |
EP0974972A2 (en) * | 1998-07-13 | 2000-01-26 | Sony Corporation | Disc cartridge |
EP0974972A3 (en) * | 1998-07-13 | 2000-05-17 | Sony Corporation | Disc cartridge |
EP1793379A2 (en) * | 1998-07-13 | 2007-06-06 | Sony Corporation | Disc cartridge |
EP1793379A3 (en) * | 1998-07-13 | 2007-08-01 | Sony Corporation | Disc cartridge |
Also Published As
Publication number | Publication date |
---|---|
JPH0325865B2 (en) | 1991-04-09 |
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