Changer-type disc playback device

Details Changer-type disc playback device Changer-type disc playback device

1996-04-29

1998-07-07

Levy, Stuart S.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369178, 369191, G11B 1726

Patent

active

057779562

ABSTRACT:
A disc player has a magazine for storing discs and a disc transport mechanism transporting a selected disc between a playback position outside the magazine and a store position located within the magazine. The carriages are stacked upon each other and pivotally supported within the magazine. The carriages are extracted from the stack by lifting a front end of a carriage above a selected carriage. Subsequent to the lifting of the carriage, the selected carriage is withdrawn from the magazine to the playback position. When a selected carriage is moved to the playback position, the discs on carriages above and below the selected carriage are prevented from shifting with the removal of the selected carriage by coaxial opposing shafts which extend through spindle holes in the discs on the carriages above and below the selected disc. A closeable gap between the two shafts permits the selected disc to be shifted. The gap is closed, except when a carriage is being shifted into or out of the magazine, thereby preventing discs and their carriages from shifting due to vibration or tilting of the cabinet. When the device is in a stop mode, the magazine shifts to pierce any carriages capable of holding discs of different sizes, thereby preventing smaller disc from moving into recesses for larger discs.

REFERENCES:
patent: 2297014 (1942-09-01), Offen
patent: 5210728 (1993-05-01), Noguchi et al.

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