发明名称 |
STORAGE BOX FOR DISC-SHAPED INFORMATION CARRIERS WITH A HIGH RECORDING DENSITY |
摘要 |
High storage density information carriers, particularly optically readable video discs and digital records, can only be read error-free by a playback device when the high requirements made of freedom from warping also remain guaranteed over long storage times. A cassette is provided to support and fix an information carrier only within its central portion which is free of information tracks and, by a sufficient spacing of the information carrier in the support-free area between a bottom portion and a cover portion contact with the information carrier in this area is avoided, even given consideration of maximally-admissible warping tolerances of the storage cassette and of the information carrier. |
申请公布号 |
DE3371954(D1) |
申请公布日期 |
1987.07.09 |
申请号 |
DE19833371954 |
申请日期 |
1983.02.14 |
申请人 |
POLYGRAM GMBH |
发明人 |
GROBECKER, HERMANN;HEUER, WERNER;ZIELASEK, ADELBERT, DR. DIPL.-PHYS.;NUSSELDER, FREDERIK B. |
分类号 |
B65D85/00;B65D85/57;G11B23/02;G11B23/03;G11B33/04;(IPC1-7):G11B23/02 |
主分类号 |
B65D85/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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