Shutter stop mechanism for disk cartridges

Details Shutter stop mechanism for disk cartridges Shutter stop mechanism for disk cartridges

1990-08-13

1992-08-04

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record medium

In container

G11B 2303

Patent

active

051364492

ABSTRACT:
A disk cartridge including a rotatable disk, a cartridge case for housing the disk, and a U-shaped shutter slidably disposed on the front edge of the cartridge case is disclosed. The cartridge case includes upper and lower walls, and a head access opening formed in both walls between a central axis and the front edge to access the disk. The access opening is opened and closed by the shutter which is biased closed. An indented portion is formed on the walls for receiving the shutter. The arm portion of each edge at the side toward which the shutter is biased serves as a stop for the shutter when the shutter is biased in the closed position. The front edge forming a border of at least one indented portion and adjacent the stop is recessed to provide a second stop. The shutter includes a wall portion adjacent the base of the U and adjacent the arm of the U mounted on the wall of the cartridge having the second stop. This wall portion abuts the second stop when the shutter is closed.

REFERENCES:
patent: 4945530 (1990-07-01), Sandell
patent: 5034844 (1991-07-01), Shiba

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