Cartridge for an optical disk for recording data on the two face

Details Cartridge for an optical disk for recording data on the two face Cartridge for an optical disk for recording data on the two face

1987-06-02

1988-10-25

Foster, Jimmy G.

Dynamic information storage or retrieval

Storage medium structure

Adjuncts or adapters

206309, 360133, B65D 8557

Patent

active

047808683

ABSTRACT:
The cartridge comprises a shutter for closing the openings (18) for access to the disk on the two faces thereof. The shutter is formed by a hollow bar (24) carrying two closure plates (21) and slidable in both directions along a guide (26) adjacent to an edge 19 of the cartridge. A tension spring (28) which passes through the hollow bar 24 is connected to two blocks 30 which are slidable in the guide (26) and which are arranged to be entrained by the bar (24). The trailing block cannot follow the bar because a tongue (31) on the block abuts the end of an elongated lug (32) extending along the central part of the guide (26).
The reading device comprises a case for receiving the cartridge and a lever which is rotated when the cartridge is inserted and carries an element for pushing the shutter aside. The lever 53 is controlled by a cam slot carried by a slide member which is manually actuable to provide for expulsion of the cartridge.

REFERENCES:
patent: 4589105 (1986-05-01), Nemoto et al.
patent: 4644435 (1987-02-01), Nemoto et al.
patent: 4648001 (1987-03-01), Komatsu et al.
patent: 4660118 (1987-04-01), Faber
patent: 4682260 (1987-07-01), Oishi et al.
patent: 4682322 (1987-07-01), Ohta

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