DE29500045U1 - Magnetic disc disk case with electromagnetic shielding - Google Patents
Magnetic disc disk case with electromagnetic shieldingInfo
- Publication number
- DE29500045U1 DE29500045U1 DE29500045U DE29500045U DE29500045U1 DE 29500045 U1 DE29500045 U1 DE 29500045U1 DE 29500045 U DE29500045 U DE 29500045U DE 29500045 U DE29500045 U DE 29500045U DE 29500045 U1 DE29500045 U1 DE 29500045U1
- Authority
- DE
- Germany
- Prior art keywords
- diskette
- magnetic disk
- casing
- case according
- electrically conductive
- 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 - Lifetime
Links
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000005672 electromagnetic field Effects 0.000 description 3
- 239000002657 fibrous material Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229920000914 Metallic fiber Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002994 raw 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
- G11B23/033—Containers for flat record carriers for flexible discs
- G11B23/0332—Containers for flat record carriers for flexible discs for single discs, e.g. envelopes
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Description
Hans-Georg Baldszun 61231 Bad NauheimHans-Georg Baldszun 61231 Bad Nauheim
BESCHREIBUNG:DESCRIPTION:
Problem: Werden handelsübliche Magnetscheiben-Disketten starken elektromagnetischen Feldern ausgesetzt, wie sie etwa in der Nähe von Sendern, Funktelefonen, Stromgeneratoren, Elektromaschinen, Lautsprechern oder Bildschirmen existieren, so können die gespeicherten Informationen verfälscht oder gelöscht werden. Problem: If commercially available magnetic disks are exposed to strong electromagnetic fields, such as those found near transmitters, cell phones, power generators, electrical machines, loudspeakers or screens, the stored information can be corrupted or deleted.
Stand der Technik: Stand der Technik sind im PC-Bereich konventionelle Kunststoff-Diskettenhüllen, die gegen äußere elektromagnetische Einflüsse keinen Schutz bieten. State of the art: The state of the art in the PC sector is conventional plastic diskette cases, which offer no protection against external electromagnetic influences.
Lösung: Eine metallische Abschirmung der Magnetscheibe in der Diskettenhülle, die die innenliegende Magnetscheibe gegen die Einwirkungen elektrischer und elektromagnetischer Felder schützt.Solution: A metallic shield of the magnetic disk in the diskette case, which protects the internal magnetic disk against the effects of electrical and electromagnetic fields.
Die metallische Abschirmung der Disketten soll aus fur diesem Zweck geeigneten metallischen Werkstoffen bestehen. Je nach Anwendungsfall können etwa Weicheisenwerkstoffe oder auch Aluminium verwendet werden. Die Abschirmung sollte die Magnetscheibe möglichst vollständig umhüllen.The metal shielding of the diskettes should be made of metal materials suitable for this purpose. Depending on the application, soft iron materials or aluminum can be used. The shielding should enclose the magnetic disk as completely as possible.
Metallische Komponenten wie der sogenannte Shutter (der mechanische Verschluß der Schreib-Lese-Öfmung) und der sogenannte Hub (die metallische Antriebsachse der Magnetscheibe) vervollständigen die Abschirmung der Diskette. Metallic components such as the so-called shutter (the mechanical closure of the read/write opening) and the so-called hub (the metallic drive shaft of the magnetic disk) complete the shielding of the diskette.
Version 1: Bei der Herstellung werden metallische Fasern in die Diskettenhülle eingebracht und mit Kunststoff umspritzt. Es kann auch ein Faserverbundwerkstoff mit eingelagerten Metallfasern verwendet werden. Version 1: During production, metallic fibers are inserted into the disk casing and coated with plastic. A fiber composite material with embedded metal fibers can also be used.
Version 2: Bei der Herstellung wird ein metallisches Gewebe in die Diskettenhüllen eingebracht und mit Kunststoff umspritzt. Version 2: During production, a metallic fabric is inserted into the diskette casings and overmolded with plastic.
-2--2-
-2--2-
Version 3: Bei der Herstellung wird ein dünnes Streckmetall in die Diskettenhüllen eingebracht und mit Kunststoff umspritzt. Version 3: During production, a thin expanded metal is inserted into the diskette casings and molded with plastic.
Version 4: Bei der Herstellung wird ein Lochblech in die Diskettenhüllen eingebracht und mit Kunststoff umspritzt. Version 4: During production, a perforated sheet is inserted into the diskette case and molded with plastic.
Version 5: In ein Metallgehäuse aus einem Material, das gut gegen elektromagnetische Strahlung abschirmt, beispielsweise Weicheisen, wird eine Art Kassette aus Kunst- oder Faserstoff eingebracht, die die Magnetscheibe aufnimmt. Version 5: A kind of cassette made of plastic or fiber material, which holds the magnetic disk, is inserted into a metal housing made of a material that provides good shielding against electromagnetic radiation, such as soft iron.
Abb.l zeigt eine Abwicklung des Metallgehäuses aus Weicheisenblech, Abb.2 zeigt den Zusammenbau der Diskette.Fig. 1 shows a development of the metal casing made of soft iron sheet, Fig. 2 shows the assembly of the diskette.
Version 6: Eine Magnetscheiben-Diskettenhülle wird sandwichartig aufgebaut, wobei ein geeignetes metallisches Material die Magnetscheibe oben, unten und seitlich gegen elektromagnetische Felder abschirmt. Version 6: A magnetic disk diskette case is constructed like a sandwich, with a suitable metallic material shielding the magnetic disk from electromagnetic fields at the top, bottom and sides.
Version 7: Die Magnetscheiben-Diskettenhülle wird in einer Stanzung gefertigt und durch Falzen und Umbiegen geformt. Version 7: The magnetic disk case is manufactured in a punching process and formed by folding and bending.
Dabei kann sowohl Vormaterial aus Verbundwerkstoff verwendet werden, beispielsweise mit Aluminium kaschierter Karton, es können aber auch getrennte Schichten aus Metallblech und Fasermaterial miteinander verklebt werden.Both composite raw materials can be used, for example cardboard laminated with aluminum, but separate layers of sheet metal and fiber material can also be glued together.
Abb.l der Version 7 zeigt die Abwicklung einer Diskettenhülle.Fig.l of version 7 shows the unfolding of a diskette sleeve.
Abb.2 zeigt das Zusammenfügen ders Materialien, Fig. 1 den Faserwerkstoff
Fig.2 die Metallkomponente.Fig. 2 shows the joining of the materials, Fig. 1 the fiber material
Fig.2 the metal component.
Abb.3 zeigt das Falzen, Umklappen und Zusammenfügen der Diskettenhülle, Fig. 3 den Verbundwerkstoff,Fig.3 shows the folding, folding and assembly of the diskette case, Fig. 3 the composite material,
Fig.4 die Magnetscheibe mit dem sogenannten 'Hub', Fig.5 den sogenannten 'Shutter'Fig.4 the magnetic disk with the so-called 'hub', Fig.5 the so-called 'shutter'
Abb.4 zeigt die fertige Diskette mit elektromagnetischer Abschirmung.Fig.4 shows the finished diskette with electromagnetic shielding.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29500045U DE29500045U1 (en) | 1995-01-03 | 1995-01-03 | Magnetic disc disk case with electromagnetic shielding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29500045U DE29500045U1 (en) | 1995-01-03 | 1995-01-03 | Magnetic disc disk case with electromagnetic shielding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29500045U1 true DE29500045U1 (en) | 1995-08-03 |
Family
ID=8002142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29500045U Expired - Lifetime DE29500045U1 (en) | 1995-01-03 | 1995-01-03 | Magnetic disc disk case with electromagnetic shielding |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE29500045U1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0872842A2 (en) * | 1997-04-15 | 1998-10-21 | TDK Corporation | Disc cartridge |
| EP0884728A1 (en) * | 1997-06-10 | 1998-12-16 | TDK Corporation | Disc cartridge |
| EP1081704A2 (en) * | 1999-09-01 | 2001-03-07 | Sony Corporation | Disc cartridge |
| EP1081703A2 (en) * | 1999-09-06 | 2001-03-07 | Sony Corporation | Disc cartridge |
| EP1081702A2 (en) * | 1999-09-01 | 2001-03-07 | Sony Corporation | Disc cartridge |
-
1995
- 1995-01-03 DE DE29500045U patent/DE29500045U1/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0872842A2 (en) * | 1997-04-15 | 1998-10-21 | TDK Corporation | Disc cartridge |
| EP0872842A3 (en) * | 1997-04-15 | 1998-12-16 | TDK Corporation | Disc cartridge |
| US6108298A (en) * | 1997-04-15 | 2000-08-22 | Tdk Corporation | Disc cartridge |
| EP0884728A1 (en) * | 1997-06-10 | 1998-12-16 | TDK Corporation | Disc cartridge |
| US6307831B1 (en) | 1997-06-10 | 2001-10-23 | Tdk Corporation | Disc cartridge having reference holes |
| EP1081702A2 (en) * | 1999-09-01 | 2001-03-07 | Sony Corporation | Disc cartridge |
| EP1081704A3 (en) * | 1999-09-01 | 2001-05-02 | Sony Corporation | Disc cartridge |
| EP1081702A3 (en) * | 1999-09-01 | 2001-05-02 | Sony Corporation | Disc cartridge |
| EP1081704A2 (en) * | 1999-09-01 | 2001-03-07 | Sony Corporation | Disc cartridge |
| US6433963B1 (en) | 1999-09-01 | 2002-08-13 | Sony Corporation | Disc cartridge |
| US6449125B1 (en) | 1999-09-01 | 2002-09-10 | Sony Corporation | Disc cartridge |
| EP1081703A2 (en) * | 1999-09-06 | 2001-03-07 | Sony Corporation | Disc cartridge |
| EP1081703A3 (en) * | 1999-09-06 | 2001-05-02 | Sony Corporation | Disc cartridge |
| US6515830B1 (en) | 1999-09-06 | 2003-02-04 | Sony Corporation | Protective linear sheets for a magnetic recording disc housed in a disc cartridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 19950914 |
|
| R156 | Lapse of ip right after 3 years |
Effective date: 19981001 |