JPH0311029B2 - - Google Patents
Info
- Publication number
- JPH0311029B2 JPH0311029B2 JP589283A JP589283A JPH0311029B2 JP H0311029 B2 JPH0311029 B2 JP H0311029B2 JP 589283 A JP589283 A JP 589283A JP 589283 A JP589283 A JP 589283A JP H0311029 B2 JPH0311029 B2 JP H0311029B2
- Authority
- JP
- Japan
- Prior art keywords
- shutter
- disk
- shutter opening
- case
- closing jig
- 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.)
- Expired
Links
- 239000000428 dust Substances 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
- G11B23/03—Containers for flat record carriers
Landscapes
- Feeding And Guiding Record Carriers (AREA)
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明はフレキシブル磁気デイスクを内部に有
するデイスクカセツトに関するもので、とくにそ
のシヤツター機構に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a disk cassette having a flexible magnetic disk therein, and particularly to its shutter mechanism.
従来のフレキシブル磁気デイスクはヘツドウイ
ンドウ等の開口を有するケースに入つており、そ
のため開口からホコリがケース内に侵入して磁気
デイスクに容易に付着し、また、開口を指で保持
した際に、磁気デイスクに指紋が付着し易い。ホ
コリや指紋が磁気デイスクに付着すると、磁気デ
イスクから再生される信号にドロツプアウトが生
じやすく、したがつてケースの取扱いには細心の
注意が必要である。
Conventional flexible magnetic disks are housed in a case with an opening such as a head window, so dust enters the case through the opening and easily attaches to the magnetic disk. Fingerprints tend to stick to the disk. If dust or fingerprints adhere to the magnetic disk, dropouts are likely to occur in the signal reproduced from the magnetic disk, so the case must be handled with great care.
ケース内へのホコリの侵入や、指紋の付着を防
止するために、従来第１図ａ，ｂ，ｃ，ｄに示す
デイスクカセツトが提案されている。第１図ａは
記憶装置等本体１、第１図ｂはデイスクカセツト
３を示し、第１図ｃは本体１にデイスクカセツト
３を装着した状態、第１図ｄは本体１より取りは
ずしたデイスクカセツト３を各々示す。デイスク
カセツト３はシヤツター４、シヤツター４の隅部
に固着されたシヤツター開閉用治具５、シヤツタ
ー開閉用治具５に一端を接続したバネ６、および
デイスク１２とからなる。デイスクカセツト３を
本体１に装着すると、本体１側に設けられたシヤ
ツター開成用爪２にシヤツター開閉用治具５が当
接し、デイスクカセツト３の挿入に従つて、シヤ
ツター４が移動し、ヘツドウインドウ１１が完全
に開成される。即ち第１図ｃの状態となる。また
デイスクカセツト３を本体１より取りはずす場合
は、デイスクカセツト３の動きに応じて、バネ６
が縮み、シヤツター４が除々に閉成されるが、シ
ヤツター４の片側にのみバネ６が接続してあるた
め、シヤツター４が傾いて摩擦抵抗が大きくなり
閉成の途中で止まつてしまい、シヤツター４が完
全に閉じない場合がしばしば生じる。即ち第１図
ｄに示す状態でデイスクカセツト３が本体１より
取りはずされ、あとは手動でシヤツター４を閉め
ねばならず、自動的にシヤツター４が開成、閉成
される当初の目的が充分に達成されない欠点があ
つた。 In order to prevent dust from entering the case and fingerprints from sticking, disk cassettes shown in FIGS. 1a, b, c, and d have been proposed. 1a shows the storage device main body 1, FIG. 1b shows the disk cassette 3, FIG. 1c shows the disk cassette 3 attached to the main body 1, and FIG. 1d shows the disk cassette removed from the main body 1. 3 are shown respectively. The disk cassette 3 consists of a shutter 4, a shutter opening/closing jig 5 fixed to a corner of the shutter 4, a spring 6 having one end connected to the shutter opening/closing jig 5, and a disk 12. When the disk cassette 3 is attached to the main body 1, the shutter opening/closing jig 5 comes into contact with the shutter opening claw 2 provided on the main body 1 side, and as the disk cassette 3 is inserted, the shutter 4 moves and the head window opens. 11 will be fully opened. That is, the state shown in FIG. 1c is reached. In addition, when removing the disk cassette 3 from the main body 1, the spring 6
The shutter 4 contracts and the shutter 4 gradually closes, but since the spring 6 is connected only to one side of the shutter 4, the shutter 4 tilts and frictional resistance increases, causing the shutter 4 to stop midway through closing. often does not close completely. That is, the disk cassette 3 is removed from the main body 1 in the state shown in FIG. There was a drawback that it was not achieved.
本発明の目的は上記した従来技術の欠点をなく
し、磁気デイスクが安全に保存され、かつ使用さ
れるように、本体に装着して初めて開成し、本体
より取りはずすと同時に自動的にスムーズに閉成
されるヘツドウインドウのシヤツター開閉機構を
有するデイスクカセツトを提供するものである。
The purpose of the present invention is to eliminate the above-mentioned drawbacks of the prior art, and to enable the magnetic disk to be safely stored and used. The present invention provides a disk cassette having a head window shutter opening/closing mechanism.
上記の目的を達成するために、本発明によるシ
ヤツター開閉機構では従来平行移動であつたシヤ
ツターをケースの中心開口の中心と同軸に回転す
るシヤツターに替え、シヤツターの外縁部にシヤ
ツター開閉用治具を設けることにより、摩擦抵抗
によるシヤツターの動きにくさを低減し、更にシ
ヤツター開閉用治具の端部にバネを接続し、バネ
の反撥力を利用して常にシヤツターが閉じる構成
にする。
In order to achieve the above object, the shutter opening/closing mechanism according to the present invention replaces the conventional parallel-moving shutter with a shutter that rotates coaxially with the center of the central opening of the case, and a shutter opening/closing jig is attached to the outer edge of the shutter. By providing this, the difficulty in moving the shutter due to frictional resistance is reduced, and a spring is connected to the end of the shutter opening/closing jig so that the shutter is always closed using the repulsive force of the spring.
以下に本発明をその実施例に係るフレキシブル
磁気デイスク記憶装置のデイスクカセツトに応用
した場合を例示しながら図面と共に詳述する。
尚、本発明はフレキシブル磁気デイスク間憶装置
のデイスクカセツトのみに規制されることなく、
例えばビデオデイスクおよびデジタルオーデイオ
デイスク等に応用し得る事はもちろんである。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Below, the present invention will be described in detail with reference to the drawings while illustrating a case in which the present invention is applied to a disk cassette of a flexible magnetic disk storage device according to an embodiment thereof.
Note that the present invention is not limited to the disk cassette of a flexible magnetic disk storage device;
Of course, it can be applied to, for example, video discs and digital audio discs.
第２図は本発明に係るシヤツター開閉機構の基
本的な構成を示す図であつて、第２図ａは記憶装
置等の本体１、第２図ｂはデイスクカセツト３、
第２図ｃは本体１にデイスクカセツト３を装着し
た場合を示すものである。デイスクカセツト３を
挿入すべき本体１には、シヤツター７を開成する
ためのシヤツター開成用爪２が本体１より若干突
出して設けられている。 FIG. 2 is a diagram showing the basic structure of the shutter opening/closing mechanism according to the present invention, in which FIG. 2a shows the main body 1 of a storage device, etc., FIG.
FIG. 2c shows the case where the disk cassette 3 is attached to the main body 1. A shutter opening claw 2 for opening the shutter 7 is provided on the main body 1 into which the disk cassette 3 is inserted, projecting slightly from the main body 1.
また第３図は本発明のデイスクカセツト３の構
成図を示し、第３図ａはヘツドウインドウ１１と
中心開口１６，１６′と案内溝１４とを有するケ
ース１３の片側と、ケース１３に回転可能に取付
けられたシヤツター７を示し、第３図ｂは中心に
ハブ１７を有するデイスク１２を示す。第３図ｃ
はケース１３′の片側と、ケース１３に回転可能
に取付けられたシヤツター７′とシヤツター７′の
外縁部にその一端を接続しレール１５に沿つて滑
動するシヤツター開閉用治具８とシヤツター開閉
用治具８の他端に接続したバネ１０とを示す。シ
ヤツター開閉用治具８は可撓性の材料で成形さ
れ、一端はシヤツター７，７′の外縁部とかん合
する凹部１８，１８′を有し、他端には突起部９
を有するが、突起部９はガイド溝１４に突出して
はいるものの、デイスクカセツト３の外部には突
出していない。レール１５はケース１３，１３′
の内部に成形された凹状の断面を持つ溝で、円弧
状部１９と直線部２０からなり、シヤツター開閉
用治具８が滑動する。ねじりばね１０はケース１
３，１３′内に成形した空洞部２１に納められ、
一端をシヤツター開閉用治具８の端部に係り、他
端はケース１３′に係つている。シヤツター７，
７′は非磁性体の薄板で成形され、ケース１３，
１３′の中心開口１６，１６′の周囲に成形した突
条２２の外周部にはめ込まれ、突条２２の回りに
転く回転する。 Further, FIG. 3 shows a configuration diagram of the disk cassette 3 of the present invention, and FIG. Figure 3b shows the disc 12 with the hub 17 in the center. Figure 3c
is a shutter opening/closing jig 8 that connects one end of the shutter 7' to the outer edge of the shutter 7' and slides along the rail 15, and a shutter opening/closing jig 8 that is connected to one side of the case 13', a shutter 7' that is rotatably attached to the case 13, and one end of which is connected to the outer edge of the shutter 7'. A spring 10 connected to the other end of the jig 8 is shown. The shutter opening/closing jig 8 is molded from a flexible material, and has recesses 18 and 18' at one end that engage with the outer edges of the shutters 7 and 7', and a protrusion 9 at the other end.
However, although the protrusion 9 protrudes into the guide groove 14, it does not protrude to the outside of the disk cassette 3. Rail 15 is connected to cases 13, 13'
This groove has a concave cross section and is formed inside the groove, and consists of an arcuate part 19 and a straight part 20, on which the shutter opening/closing jig 8 slides. Torsion spring 10 is case 1
It is housed in a cavity 21 formed within 3 and 13',
One end is connected to the end of the shutter opening/closing jig 8, and the other end is connected to the case 13'. Shutter 7,
7' is formed from a thin plate of non-magnetic material, and the case 13,
It is fitted into the outer periphery of a protrusion 22 formed around the center openings 16, 16' of 13', and rotates around the protrusion 22.
今本実施例の機構とその動作を図面を参照しな
がら説明する。デイスクカセツト３を本体１に
除々に挿入すると、ガイド溝１４に沿つてシヤツ
ター開成用爪２が相対的にスライドし、シヤツタ
ー開成用爪２は突起部９に当接する。更にデイス
クカセツト３を本体１に押しこむと、突起部９が
押し下げられ、シヤツター開閉用治具８がケース
１３に設けられたレール１５を滑動してシヤツタ
ー７，７′の外縁部を引つぱり、シヤツター７，
７′は回動して、ヘツドウインドウ１１は除々に
開き、デイスクカセツト３を本体１に完全に挿入
した時点でヘツドウインドウ１１は開成し、また
シヤツター開閉用治具８の他端に接続されたねじ
りばね１０は最高にたわむ。第２図ｃはデイスク
カセツト３が本体１に装着され、ヘツドウインド
ウ１１が完全に開成されている状態を示す。 The mechanism and operation of this embodiment will now be explained with reference to the drawings. When the disk cassette 3 is gradually inserted into the main body 1, the shutter opening pawl 2 relatively slides along the guide groove 14, and the shutter opening pawl 2 comes into contact with the protrusion 9. When the disk cassette 3 is further pushed into the main body 1, the projection 9 is pushed down, and the shutter opening/closing jig 8 slides on the rail 15 provided on the case 13 and pulls the outer edges of the shutters 7, 7'. , shutter 7,
7' rotates to gradually open the head window 11, and when the disk cassette 3 is completely inserted into the main body 1, the head window 11 opens and is connected to the other end of the shutter opening/closing jig 8. The torsion spring 10 deflects to the maximum. FIG. 2c shows a state in which the disk cassette 3 is attached to the main body 1 and the head window 11 is completely opened.
またデイスクカセツト３を本体１より取りはず
す場合は、デイスクカセツト３の動きに応じてね
じりばね１０の働きによりシヤツター開閉用治具
８が押し上げられ、シヤツター開閉用治具８先端
部がシヤツター７，７′の外縁部を押し、シヤツ
ター７，７′が回動して徐々にヘツドウインドウ
１１を閉じるようになる。デイスクカセツト３を
本体１より完全に取り出した状態では、第２図ｂ
に示す元の状態にシヤツター７，７′は戻り、ヘ
ツドウインドウ１１は完全にシヤツター７，７′
により覆われる。 When the disk cassette 3 is removed from the main body 1, the shutter opening/closing jig 8 is pushed up by the action of the torsion spring 10 in accordance with the movement of the disk cassette 3, and the tip of the shutter opening/closing jig 8 is attached to the shutters 7, 7'. The shutters 7, 7' rotate to gradually close the head window 11. When the disk cassette 3 is completely removed from the main body 1, it is shown in Fig. 2b.
The shutters 7, 7' return to their original states as shown in Figure 2, and the head window 11 is completely closed to the shutters 7, 7'.
covered by.
第２図ｂに示すデイスクカセツト３単体の状態
では、シヤツター７，７′はねじりばね１０の働
きにより常にヘツドウインドウ１１をケース内部
より覆つている。突起部９は前述したように、デ
イスクカセツト３の外部には全く突出していない
ので、デイスクカセツト３を手に持つても指等に
触れることなく、したがつて幼児がいたずらして
も簡単にはシヤツター７，７′が開かない。万一、
偶発的に開いたとしても、シヤツター７，７′は
ねじりばね１０の力で自動的に復帰するので、シ
ヤツター７，７′はいつまでも開いていることは
ない。 When the disk cassette 3 is alone as shown in FIG. 2b, the shutters 7, 7' always cover the head window 11 from inside the case due to the action of the torsion spring 10. As mentioned above, the projection 9 does not protrude to the outside of the disk cassette 3 at all, so even if you hold the disk cassette 3 in your hand, it will not touch your fingers, so even if a child plays with it, it will not be easily touched. Shutters 7 and 7' do not open. In the unlikely event that
Even if the shutters 7, 7' are opened accidentally, the shutters 7, 7' will automatically return to their original positions by the force of the torsion spring 10, so the shutters 7, 7' will not remain open forever.
以上詳述したごとく、本発明によれば、デイス
クカセツトのシヤツターを閉成したままで本体に
装着することによつて、自動的にシヤツターが開
成されて使用可能な状態となりさらに本体から取
りはずすと同時にバネの働きにより自動的にシヤ
ツターが閉成される。したがつてデイスクカセツ
ト単体のままでは常にシヤツターは閉じた状態で
あり、かつシヤツター開閉用治具はデイスクカセ
ツトより突び出てはいないので、故意に開けよう
としない限りシヤツターは開かず、その結果塵埃
等の侵入や、誤つて指がデイスクに触れることに
より未然に防止でき、全く安全に使用し得るもの
である。
As detailed above, according to the present invention, by attaching the disk cassette to the main body with the shutter closed, the shutter is automatically opened and ready for use, and when removed from the main body, the shutter is automatically opened and ready for use. The shutter is automatically closed by the action of the spring. Therefore, if the disk cassette is left alone, the shutter is always closed, and the shutter opening/closing jig does not protrude beyond the disk cassette, so the shutter will not open unless you intentionally try to open it. This prevents the intrusion of dust and the like and the accidental contact of fingers with the disk, making it completely safe to use.
第１図ａ，ｂ，ｃ，ｄは従来のデイスクカセツ
トのシヤツター開閉機構を示す断面図、第２図
ａ，ｂ，ｃは本発明に係るデイスクカセツトのシ
ヤツター開閉機構を示す断面図、第３図ａ，ｂ，
ｃは本発明に係るデイスクカセツトの第１の実施
例の組立斜視図である。
１：磁気記憶装置等の本体、２：シヤツター開
成用爪、３：デイスクカセツト、４，７，７′：
シヤツター、５，８：シヤツター開閉用治具、
６，１０：ねじりばね、９：突出部、１２：デイ
スク。
Figures 1a, b, c, and d are sectional views showing the shutter opening/closing mechanism of a conventional disk cassette. Figures 2a, b, and c are sectional views showing the shutter opening/closing mechanism of the disk cassette according to the present invention. Figures a, b,
FIG. 3c is an assembled perspective view of the first embodiment of the disk cassette according to the present invention. 1: Main body of magnetic storage device, etc., 2: Shutter opening claw, 3: Disk cassette, 4, 7, 7':
Shutter, 5, 8: Shutter opening/closing jig,
6, 10: torsion spring, 9: protrusion, 12: disk.
Claims (1)
と、両面前部にヘツドウインドウと両面に前記ハ
ブを回転可能に保持する中心孔と少なくとも一方
の側面に案内溝とを有し前記デイスクを内部に保
持したケースと、前記ケースの内部にあつて前記
デイスクと前記ケースとの間に前記中心孔の周囲
に該中心孔を中心に回転可能にはめこまれ前記ヘ
ツドウインドウを覆うように配置されたシヤツタ
ーと、該シヤツターの外縁部に一端がかかり他端
には突出部を有し前記ケース内を滑動するシヤツ
ター開閉用治具と、該シヤツター開閉用治具の他
端に一端がかかり前記ケース内に他端が支持され
前記シヤツター開閉用治具を常に押し上げるよう
に付勢するねじりばねとから構成されたことを特
徴とするデイスクカセツトで、該デイスクカセツ
トを磁気記憶装置に装着した時に該磁気記憶装置
内に設けたシヤツター開成用爪が前記ケースの案
内溝を走り前記シヤツター開閉用治具の突起部に
当接し前記ねじりばねに逆い該シヤツター開閉用
治具を押し下げ、前記シヤツターを回転させて前
記ヘツドウインドウを開き、前記磁気記憶装置内
の磁気ヘツドが前記デイスク面に当接し、該磁気
記憶装置より該デイスクカセツトを引き抜くと、
前記ねじりばねに付勢されて前記シヤツター開閉
用治具が押し上がり前記シヤツターを回転させて
前記ヘツドウインドウを閉じることを特徴とする
デイスクカセツト。1 A flexible magnetic disk having a hub in the center, a head window on the front of both sides, a center hole for rotatably holding the hub on both sides, and a guide groove on at least one side, with the disk inside. a shutter that is disposed inside the case and is rotatably fitted around the center hole between the disk and the case so as to cover the head window. a shutter opening/closing jig having one end attached to the outer edge of the shutter and having a protrusion at the other end and sliding inside the case; and a torsion spring whose other end is supported and which always biases the shutter opening/closing jig upward, the magnetic storage device having a torsion spring that is supported at the other end of the shutter opening/closing jig. A shutter opening pawl provided inside the case runs in a guide groove of the case and comes into contact with a protrusion of the shutter opening/closing jig, and pushes down the shutter opening/closing jig against the torsion spring, rotating the shutter and causing the shutter to open and close. When the head window is opened and the magnetic head in the magnetic storage device comes into contact with the disk surface, and the disk cassette is pulled out from the magnetic storage device,
A disk cassette characterized in that the shutter opening/closing jig is pushed up by the torsion spring to rotate the shutter and close the head window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP589283A JPS58130476A (en) | 1983-01-19 | 1983-01-19 | Disk cassette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP589283A JPS58130476A (en) | 1983-01-19 | 1983-01-19 | Disk cassette |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56167172A Division JPS5870463A (en) | 1981-10-21 | 1981-10-21 | Disk cassette |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26147388A Division JPH01154379A (en) | 1988-10-19 | 1988-10-19 | Disk cassette |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58130476A JPS58130476A (en) | 1983-08-03 |
| JPH0311029B2 true JPH0311029B2 (en) | 1991-02-15 |
Family
ID=11623544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP589283A Granted JPS58130476A (en) | 1983-01-19 | 1983-01-19 | Disk cassette |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58130476A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4695911A (en) * | 1985-05-03 | 1987-09-22 | Ron Loosen | Floppy diskette protection device |
| JPH01181170U (en) * | 1988-06-08 | 1989-12-27 |
-
1983
- 1983-01-19 JP JP589283A patent/JPS58130476A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58130476A (en) | 1983-08-03 |
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