JPH0454075U - - Google Patents
Info
- Publication number
- JPH0454075U JPH0454075U JP9473490U JP9473490U JPH0454075U JP H0454075 U JPH0454075 U JP H0454075U JP 9473490 U JP9473490 U JP 9473490U JP 9473490 U JP9473490 U JP 9473490U JP H0454075 U JPH0454075 U JP H0454075U
- Authority
- JP
- Japan
- Prior art keywords
- cartridge
- opening
- gate
- disk
- recording medium
- 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
Links
- 238000000465 moulding Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
Description
第１図は、本考案の一実施態様である３．５イ
ンチマイクロフロツピイデイスク全体の構成を示
す平面図、第２図はシヤツタの斜視図、第３図は
第２図に示すシヤツタを成形するための金型であ
つて、第２図におけるＡ−Ａ線に沿つた部分に対
応した断面図、第４図は従来の３．５インチマイ
クロフロツピイデイスクの平面図である。
図中の符号、１，２１……マイクロフロツピイ
デイスク、２……上ハーフシエル、３……下ハー
フシエル、４……センターコア、５……磁気デイ
スク、６……モータ軸挿入孔、７……開口、８…
…磁気ヘツド挿入用開口、９，２２……シヤツタ
、９ａ……側板、９ｂ……表側板、９ｃ……側面
板、１０，２３……開口部、１１……摺動領域部
、１２……ゲート、１３，１４……カートリツジ
端部、３０……固定金型、３１……可動金型、４
０……成形空間、４１……位置決め突起、Ｇ０，
Ｇ１，Ｇ２……ゲート跡、Ｃ……実効開口領域。
Fig. 1 is a plan view showing the entire configuration of a 3.5-inch microfloppy disk, which is an embodiment of the present invention, Fig. 2 is a perspective view of the shutter, and Fig. 3 is a view of the shutter shown in Fig. 2. A sectional view of a mold for molding, taken along line A--A in FIG. 2, and FIG. 4 is a plan view of a conventional 3.5-inch microfloppy disk. Symbols in the figure: 1, 21...Micro floppy disk, 2...Upper half shell, 3...Lower half shell, 4...Center core, 5...Magnetic disk, 6...Motor shaft insertion hole, 7...Opening, 8...
...Magnetic head insertion opening, 9, 22...Shutter, 9a...Side plate, 9b...Front side plate, 9c...Side plate, 10, 23...Opening, 11...Sliding area portion, 12... Gate, 13, 14... Cartridge end, 30... Fixed mold, 31... Movable mold, 4
0... Molding space, 41... Positioning protrusion, G 0 ,
G1 , G2 ... Gate trace, C... Effective opening area.
Claims (1)
録媒体が収納されると共に少なくとも前記デイス
ク記録媒体の一部を露出する開口部が設けられた
カートリツジケースと、該開口部を摺動開閉する
合成樹脂製のシヤツタとを備えたデイスクカート
リツジにおいて、前記シヤツタは、断面コ字状で
前記カートリツジケースを挟持するように、上面
板と、下面板と、該上面板と下面板を連結する側
面板とが一体成形され、成形時のゲートが前記側
面板の外面側に設けられており、更に前記ゲート
の位置が前記開口部に対応した実効開口領域に常
に位置するように構成されたことを特徴とするデ
イスクカートリツジ。 A cartridge case that houses a disk recording medium on which a predetermined information signal can be recorded and reproduced and is provided with an opening that exposes at least a portion of the disk recording medium, and a synthetic resin-made cartridge that slides to open and close the opening. In the disk cartridge cartridge, the shutter has a U-shaped cross section and includes an upper plate, a lower plate, and a side plate connecting the upper plate and the lower plate so as to sandwich the cartridge case. is integrally molded, a gate during molding is provided on the outer surface side of the side plate, and the gate is configured such that the position of the gate is always located in an effective opening area corresponding to the opening. disk cartridge.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9473490U JPH0454075U (en) | 1990-09-11 | 1990-09-11 | |
| DE4130228A DE4130228A1 (en) | 1990-09-11 | 1991-09-11 | Injection moulding disc cassette - using gate equidistant from furthest points of asymmetrical shape to produce uniform thickness and distribution of shot |
| US07/978,854 US5305172A (en) | 1990-09-11 | 1992-11-19 | Synthetic resin disc cartridge shutter having non-engaging raised gate mark |
| US08/206,272 US5494621A (en) | 1990-01-19 | 1994-03-07 | Method for producing shutter for disc cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9473490U JPH0454075U (en) | 1990-09-11 | 1990-09-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0454075U true JPH0454075U (en) | 1992-05-08 |
Family
ID=31832918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9473490U Pending JPH0454075U (en) | 1990-01-19 | 1990-09-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0454075U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60231985A (en) * | 1984-04-28 | 1985-11-18 | Sony Corp | Magnetic disk cassette |
-
1990
- 1990-09-11 JP JP9473490U patent/JPH0454075U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60231985A (en) * | 1984-04-28 | 1985-11-18 | Sony Corp | Magnetic disk cassette |