Disk cartridge with two slidable shutter members

Details Disk cartridge with two slidable shutter members Disk cartridge with two slidable shutter members

1995-09-12

1996-10-29

Tupper, Robert S.

Dynamic information storage or retrieval

Storage medium structure

Adjuncts or adapters

360133, G11B 2303

Patent

active

055703429

ABSTRACT:
A disk cartridge, such as a magneto optical disk cartridge, has first and second shutters for opening and closing a center hole and a plurality of pickup holes, and a drive mechanism for causing the shutters to moves toward each other to close the holes and to move away from each other to open the holes. The drive mechanism comprise a first slide rack joined with the first shutter, a second slide rack joined with the second shutter, and a pinion rotatably mounted in a case of the cartridge and engaged with both of the first and second racks so that a movement of one of the racks in one direction causes a movement of the other rack in the opposite direction.

REFERENCES:
patent: 4608681 (1986-08-01), Shiosaki
patent: 4682322 (1987-07-01), Ohta
patent: 4695911 (1987-09-01), Loosen
patent: 4724962 (1988-02-01), Watanabe et al.
patent: 4799121 (1989-01-01), Takahashi
patent: 4807079 (1989-02-01), Takahashi
patent: 5048008 (1991-09-01), Haryna
patent: 5093823 (1992-03-01), Orwekerk et al.
patent: 5153801 (1992-10-01), Ikebe et al.
patent: 5278717 (1994-01-01), Sasaki et al.

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