WO1993021632A1 - Volets de protection a un disque souple et procede de fabrication - Google Patents

Volets de protection a un disque souple et procede de fabrication Download PDF

Info

Publication number
WO1993021632A1
WO1993021632A1 PCT/JP1992/000498 JP9200498W WO9321632A1 WO 1993021632 A1 WO1993021632 A1 WO 1993021632A1 JP 9200498 W JP9200498 W JP 9200498W WO 9321632 A1 WO9321632 A1 WO 9321632A1
Authority
WO
WIPO (PCT)
Prior art keywords
shutter
protector
floppy disk
symbols
characters
Prior art date
Application number
PCT/JP1992/000498
Other languages
English (en)
Japanese (ja)
Inventor
Tomonosuke Iwaoka
Original Assignee
Kabushiki Kaisha Selco
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 Kabushiki Kaisha Selco filed Critical Kabushiki Kaisha Selco
Priority to PCT/JP1992/000498 priority Critical patent/WO1993021632A1/fr
Publication of WO1993021632A1 publication Critical patent/WO1993021632A1/fr

Links

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
    • G11B23/38—Visual features other than those contained in record tracks or represented by sprocket holes the visual signals being auxiliary signals
    • G11B23/40—Identifying or analogous means applied to or incorporated in the record carrier and not intended for visual display simultaneously with the playing-back of the record carrier, e.g. label, leader, photograph
    • 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
    • G11B23/0301—Details
    • G11B23/0308—Shutters
    • 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
    • G11B23/0301—Details
    • G11B23/031—Indicating means, e.g. sticker, bar code

Definitions

  • the present invention relates to a shutter for a floppy disk protector and a method of manufacturing the same.
  • the protector When set in a disk drive, the protector has an opening because the disk surface and the magnetic head of the disk drive must be in contact for data access. Is provided.
  • the disk surface may be damaged, so a shutter is provided to expose the opening when it is set in the disk drive.
  • identification is given by screen printing or pad printing.
  • the fitting process of the above-mentioned plate or the like is performed.
  • the acetal resin is used, it is difficult to ride ink on the print because of the oiliness of the resin, so it is necessary to apply a surface treatment to roughen the print surface of the shutter. Is required.
  • the surface roughening process is performed by laser processing, there is also a problem that the shutter is easily formed and is uneconomical due to its thin thickness, which is easily damaged during processing.
  • An object of the present invention is to provide an inexpensive floppy disk protector shutter and a method of manufacturing the same.
  • the present invention has the following configuration.
  • the shutter for the floppy disk protector is molded of synthetic resin in the floppy disk protector shutter that opens and closes the opening of the floppy disk protector. It is formed on a glossy surface, and characters and symbols are formed on a glossy surface.
  • the base portion on the outer surface of the shutter is formed on a glossy surface, and characters and symbols are formed on a non-glossy surface.
  • These shutters are mirror-finished at least around the positions corresponding to the characters and symbols on the cavity surface, and have resin projection molds with fine irregularities formed on the other cavity surfaces, or at least on the cavity surface. Fine irregularities are formed around the position corresponding to both characters and symbols, and the other cavity surface can be manufactured by resin molding using a mirror-finished resin molding die.
  • the character * symbol can be displayed by the difference in the degree of light reflection on the shutter surface. This eliminates the need for the conventional printing process that has caused high costs, thereby improving the workability of floppy disk assembly and reducing cost down. It has significant effects such as being able to achieve it.
  • FIG. 1 is a front view of a floppy disk according to a first embodiment of the present invention
  • FIG. 2 is an enlarged front view of a shutter of the floppy disk of FIG.
  • FIG. 3 is a partial cross-sectional view of a molding die for resin-molding the shutter of FIG.
  • FIG. 4 is an enlarged front view of the shutter of the second embodiment.
  • FIG. 5 is a partial sectional view of a molding die for resin-molding the shutter of FIG. Example
  • FIG. 1 shows a front view of a front disk 10 of the first embodiment.
  • Reference numeral 12 denotes a protector, in which a disk 14 is rotatably accommodated.
  • An opening 16 is opened in the protector 12, and when the front disk 10 is set in a disk drive device (not shown), the magnetic head of the disk drive device is set. Can access the surface of disk 14 for data access.
  • Reference numeral 18 denotes a shutter which can move left and right along the upper edge of the protector 12.
  • a window 20 is opened in the shutter 18, and when the shutter 18 moves to the left, the window 20 and the opening 16 of the protector 12 are aligned.
  • the magnetic head and the surface of the disk 14 can be contacted.
  • the shutter 18 is constantly biased rightward by a spring (not shown) arranged between the protector 12 and the shutter 18. Normally, the shutter 18 closes the opening 16.
  • the left half of the outer surface of the shadow 18 is an identification part 22 on which the product symbol of the floppy disk 10 and characters / symbols 24 for identification indicating recording density and the like are displayed.
  • Figure 2 shows an enlarged front view of the shutter 18.
  • the base part 26 of the outer wheat surface of the shatter 18 is a non-glossy surface with fine irregularities formed, and the character 2 symbol 24 is formed on a mirror-like glossy surface, and the light reflection of both Depending on the degree of difference, it is possible to read letters and symbols 24.
  • the shutter 18 is made of a synthetic resin, and can be manufactured by injection molding.
  • the character 'symbol 24 of the shutter 18 is formed simultaneously with the injection molding of the shutter 18. This is because the printing process of characters and symbols 24 can be omitted. Since the characters and symbols 24 are also displayed at the same time during the injection molding of the shutter 18, the molding die is unique.
  • FIG. 3 shows a partial sectional view of the molding die.
  • the mold 30 is mirror-finished at least around the position 34 corresponding to the character / symbol 2 of the cavity surface 32.
  • a gun is applied to mask the position 34 corresponding to the character * symbol 24 into a shape corresponding to the character / symbol 2, and then sandblast the cavity surface 32 concerned.
  • fine irregularities are formed on the cavity surface 32 except for the masked portion 34.
  • the machining of the cavity surface 32 of the molding die 30 is completed.
  • the machining of the cavity surface 32 can also be performed by electric discharge machining, in which case, the machining may be performed using an electrode having a shape corresponding to characters, symbols, and the like.
  • the lower ground portion 26 of the identification portion 22 becomes a non-glossy surface at the same time as molding.
  • Letters and symbols 24 can be formed on glossy surfaces It is possible to read characters and symbols 24 based on the difference in the degree of light reflection between the two.
  • the shutter 18 thus formed can be immediately sent to the floppy disk 10 assembling process without having to be sent to the printing process.
  • the base portion 5 is formed on a glossy surface, and the characters and symbols 56 are formed on a non-glossy surface so that the characters and symbols 56 can be read. I have.
  • a molding die for resin-molding the shutter 50 of the second embodiment is located at least on the cavity surface 62 at a position 64 corresponding to the character 'symbol. Has fine irregularities, and the other cavities 62 are mirror-finished.
  • resin molding is performed using the molding die # 0, it is possible to form the base portion 54 on the glossy surface and the character * symbol 56 on the non-glossy surface in the identification portion 52 of the shutter 50. .

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

On décrit un volet de protection économique destiné à un disque souple et capable d'afficher facilement des symboles ou caractères d'identification. Un volet de protection, permettant d'ouvrir et fermer l'accès à un disque souple, est moulé en résine synthétique et comporte une base d'une surface extérieure brillante ou une surface qui est mate. On peut créer des caractères, symboles, etc., mats sur cette surface brillante, ou bien cette base de la surface extérieure du volet peut prendre une forme brillante et recevoir des caractères et symboles mats. Grâce à cette texture, on peut rendre ces caractères ou symboles visibles par la différence du degré de réflexion de la lumière sur ces surfaces de volets.
PCT/JP1992/000498 1992-04-17 1992-04-17 Volets de protection a un disque souple et procede de fabrication WO1993021632A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP1992/000498 WO1993021632A1 (fr) 1992-04-17 1992-04-17 Volets de protection a un disque souple et procede de fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1992/000498 WO1993021632A1 (fr) 1992-04-17 1992-04-17 Volets de protection a un disque souple et procede de fabrication

Publications (1)

Publication Number Publication Date
WO1993021632A1 true WO1993021632A1 (fr) 1993-10-28

Family

ID=14042305

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1992/000498 WO1993021632A1 (fr) 1992-04-17 1992-04-17 Volets de protection a un disque souple et procede de fabrication

Country Status (1)

Country Link
WO (1) WO1993021632A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1137007A2 (fr) * 2000-03-13 2001-09-26 Sony Corporation Obturateur et cartouche à disque comprenant cet obturateur

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5830980U (ja) * 1981-08-25 1983-02-28 日立マクセル株式会社 磁気デイスクジヤケツト
JPS5939491U (ja) * 1982-09-08 1984-03-13 ソニー株式会社 テ−プカセツト
JPS61105974U (fr) * 1984-12-17 1986-07-05
JPH0164167U (fr) * 1987-10-20 1989-04-25
JPH0283876A (ja) * 1988-09-20 1990-03-23 Hitachi Maxell Ltd デイスクカートリツジ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5830980U (ja) * 1981-08-25 1983-02-28 日立マクセル株式会社 磁気デイスクジヤケツト
JPS5939491U (ja) * 1982-09-08 1984-03-13 ソニー株式会社 テ−プカセツト
JPS61105974U (fr) * 1984-12-17 1986-07-05
JPH0164167U (fr) * 1987-10-20 1989-04-25
JPH0283876A (ja) * 1988-09-20 1990-03-23 Hitachi Maxell Ltd デイスクカートリツジ

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1137007A2 (fr) * 2000-03-13 2001-09-26 Sony Corporation Obturateur et cartouche à disque comprenant cet obturateur
EP1137007A3 (fr) * 2000-03-13 2002-01-23 Sony Corporation Obturateur et cartouche à disque comprenant cet obturateur
US6657818B2 (en) 2000-03-13 2003-12-02 Sony Corporation Shutter and disk cartridge having the same
KR100742650B1 (ko) * 2000-03-13 2007-07-25 소니 가부시끼 가이샤 셔터와 이것을 포함하는 디스크카트리지

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