Disk cartridge having a single closing energizer for closing two

Details Disk cartridge having a single closing energizer for closing two Disk cartridge having a single closing energizer for closing two

1993-11-19

1996-07-16

Levy, Stuart S.

Dynamic information storage or retrieval

Storage medium structure

Adjuncts or adapters

360133, G11B 2303

Patent

active

055373895

ABSTRACT:
Scratches on the recording disk caused by sliding of a disk cartridge shutter is prevented by slidably inserting first and second shutters between a tray and a case on the opposite side to a recording disk accommodating portion of the tray. The first shutter simultaneously opens and closes a case side driving shaft insert hole, a case side head insert hole, a tray side driving shaft insert hole, and a tray side head insert hole. The second shutter opens and closes a terminal hole. The second shutter is opened independently of the first shutter and is held in a position so that the case side driving shaft insert hole, the case side head insert hole, the tray side driving shaft insert hole, and the tray side head insert hole are not closed. Closing the first shutter, however, causes the second shutter to also close.

REFERENCES:
patent: 4780784 (1988-10-01), Covington et al.
patent: 4814924 (1989-03-01), Ozeki
patent: 5140489 (1992-08-01), Barnard
patent: 5278717 (1994-01-01), Sasaki et al.

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