Thin and small-sized flexible disc unit

Details Thin and small-sized flexible disc unit Thin and small-sized flexible disc unit

1994-06-22

1996-08-13

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360104, 360105, G11B 555, G11B 2108, G11B 548, G11B 554

Patent

active

055462529

ABSTRACT:
Within the housing of a flexible disc apparatus, a lead screw is rotatably laid along one side of the housing outside of a disc cartridge accommodation space, the lead screw piercing through bearing holes formed in a guide block from which two carriage arms are extending into the accommodation space, and carrying respectively thereon reading heads for picking up signals from a disc in a flexible disc cartridge loaded in the accommodation space, the distal end of the lower carriage arm is slidably engaged with a guide plate while the guide block and the lead screw are engaged with each other through the intermediary of a lead pin fixed to the guide block; thereby when the lead screw is rotated by a rotary drive mechanism, the guide block and upper and lower carriage arms is pitch-fed, and as a result, the reading heads are fed radially of the disc on the upper and lower surfaces thereof. With this arrangement, it is possible to reduce the longitudinal length of the apparatus in a direction in which the flexible disc cartridge is inserted into the apparatus, and also to reduce the thickness of the apparatus.

REFERENCES:
patent: 4315698 (1982-02-01), Takahashi
patent: 4723185 (1984-09-01), Maeda
patent: 4811143 (1989-03-01), Ohashi et al.
patent: 4901176 (1990-02-01), Kuzuhara
patent: 4996619 (1991-02-01), Negishi et al.
patent: 5073832 (1991-12-01), Ohashi et al.
patent: 5347414 (1994-09-01), Kano

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