JPS6432479A - Disk cartridge - Google Patents

Disk cartridge

Info

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
Application number
JP62187810A
Other languages
Japanese (ja)
Inventor
Minoru Fujita
Yoshitake Kato
Kazuya Fukunaga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maxell Holdings Ltd
Original Assignee
Hitachi Maxell Ltd
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 Hitachi Maxell Ltd filed Critical Hitachi Maxell Ltd
Priority to JP62187810A priority Critical patent/JPS6432479A/en
Priority to KR1019880009137A priority patent/KR0124147B1/en
Priority to EP88306885A priority patent/EP0301811B1/en
Priority to DE8888306885T priority patent/DE3879311T2/en
Priority to US07/225,831 priority patent/US5121380A/en
Publication of JPS6432479A publication Critical patent/JPS6432479A/en
Pending legal-status Critical Current

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.
JP62187810A 1987-07-29 1987-07-29 Disk cartridge Pending JPS6432479A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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