Disc cartridge

Details Disc cartridge Disc cartridge

1987-04-16

1989-01-31

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record medium

In container

360135, 369291, G11B 2303, G11B 1900, G11B 582

Patent

active

048020478

ABSTRACT:
A disc cartridge capable of effectively preventing a shutter from being opened even when any unexpected shock is suddenly applied to the disc cartridge during non-use of the disc cartridge. The disc cartridge includes a connection mechanism for operatively connecting to disc receivers, actuators for releasably locking the shutter. The connection mechanism is constituted by a guide groove provided in the actuator and formed into a substantially sideways U-shape, and a guide pin provided on the disc receiver and movably fitter within the guide groove. The guide pin is spaced from two surfaces of the guide groove opposite to the guide pin, in the actuating direction of the actuator. Also, the disc cartridge includes a substantially V-shaped spring for constantly positioning the guide pin within the guide groove and forcing the disc receiver to return to its original position to keep the guide pin apart from the opposite surfaces of the guide groove. Thus, even when the disc receiver is moved due to any shock applied to the disc cartridge during non-use, it is effectively prevented from abutting against the actuator, resulting in failure to actuate the actuator and preventing actuation of the shutter during non-use.

REFERENCES:
patent: 3416150 (1968-12-01), Lindberg
patent: 3529301 (1970-09-01), Hiruta
patent: 4399480 (1983-08-01), Edwards
patent: 4688127 (1987-08-01), Oishi et al.
patent: 4692831 (1987-09-01), Suzuki

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