JPS6432479A - Disk cartridge - Google Patents
Disk cartridgeInfo
- Publication number
- JPS6432479A JPS6432479A JP62187810A JP18781087A JPS6432479A JP S6432479 A JPS6432479 A JP S6432479A JP 62187810 A JP62187810 A JP 62187810A JP 18781087 A JP18781087 A JP 18781087A JP S6432479 A JPS6432479 A JP S6432479A
- Authority
- JP
- Japan
- Prior art keywords
- shutter
- polypropylene
- water absorption
- flexural strength
- time
- 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
Abstract
PURPOSE:To prevent deformation with time and deformation by an external force and to obtain superior durability by forming a shutter out of a synthetic resin specified in percentage of water absorption and flexural strength. CONSTITUTION:The shutter is formed of the synthetic resin of a water absorption of <=0.05% and a flexural strength of >=500kg/cm, such as a resin material selected from, for instance, a homopolymer of polypropylene, a copolymer of polypropylene, a blend of polypropylene with other resin material. That is, because of a low percentage of water absorption, the shape of the shutter will never be changed with time, while because of a high flexural strength, any damage or deformation will never arise even at the time of acting of an external force. By this method, a disk cartridge furnished with a shutter made of a resin which is superior in durability can be obtained.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62187810A JPS6432479A (en) | 1987-07-29 | 1987-07-29 | Disk cartridge |
KR1019880009137A KR0124147B1 (en) | 1987-07-29 | 1988-07-21 | Disk cartridge |
EP88306885A EP0301811B1 (en) | 1987-07-29 | 1988-07-26 | Disc cartridge |
DE8888306885T DE3879311T2 (en) | 1987-07-29 | 1988-07-26 | DISC CASSETTE. |
US07/225,831 US5121380A (en) | 1987-07-29 | 1988-07-29 | Disc cartridge shutter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62187810A JPS6432479A (en) | 1987-07-29 | 1987-07-29 | Disk cartridge |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6432479A true JPS6432479A (en) | 1989-02-02 |
Family
ID=16212638
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62187810A Pending JPS6432479A (en) | 1987-07-29 | 1987-07-29 | Disk cartridge |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6432479A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0590656U (en) * | 1992-04-28 | 1993-12-10 | 京セラ株式会社 | Optical disk cartridge |
US5429543A (en) * | 1992-07-31 | 1995-07-04 | Tyco Investment Corp. | Vehicle toy |
US5752871A (en) * | 1995-11-30 | 1998-05-19 | Tomy Co., Ltd. | Running body |
-
1987
- 1987-07-29 JP JP62187810A patent/JPS6432479A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0590656U (en) * | 1992-04-28 | 1993-12-10 | 京セラ株式会社 | Optical disk cartridge |
US5429543A (en) * | 1992-07-31 | 1995-07-04 | Tyco Investment Corp. | Vehicle toy |
US5752871A (en) * | 1995-11-30 | 1998-05-19 | Tomy Co., Ltd. | Running body |
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