Disk cartridge having coupled shutters for closing plural cartri

Details Disk cartridge having coupled shutters for closing plural cartri Disk cartridge having coupled shutters for closing plural cartri

1991-05-22

1992-10-06

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record medium

In container

369291, G11B 2303

Patent

active

051538016

ABSTRACT:
A disk cartridge has a case rotatably containing a disk therein and formed with a driving shaft insertion hole and a plurality of pickup insertion holes. A rotary shutter formed with a plurality of window holes at positions corresponding to the plurality of pickup insertion holes and rotatably provided at the driving shaft insertion hole as a center is provided. A turning shutter having a center at a position separate from the center of the rotary shutter to be rotatable with respect to the center for opening and closing the driving shaft insertion hole is provided. The turning shutter and the rotary shutter are operated cooperatively by charging or removing the disk cartridge in or from a recording/reproducing disk player to open or close the driving shaft insertion hole and the plurality of pickup insertion holes of the case.

REFERENCES:
patent: 4694448 (1987-09-01), Tamaru
patent: 4695911 (1987-09-01), Loosen

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