Head drive mechanism using non-axial lead screw imparted motion

Details Head drive mechanism using non-axial lead screw imparted motion Head drive mechanism using non-axial lead screw imparted motion

1992-08-14

1993-03-30

Dixon, Joseph L.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 75, 360109, 74 8914, 74 8915, 369223, G11B 554, F16H 2514

Patent

active

051989468

ABSTRACT:
A head drive mechanism associated with a disk drive device is provided for driving to rotate a magnetic disk. A magnetic head is driven and a signal is recorded on the magnetic disk or a signal already recorded on the disk is reproduced. The head is mounted on a carriage, on which a protrusion is provided, and is driven in a direction parallel to the surface of the disk with the protrusion being engaged with a lead screw when the lead screw is rotated. When the carriage abuts against a stopper located at a predetermined position, the movement of the head in the radial direction of the disk is prevented. A control system further controls rotation of the screw in the direction parallel to the surface of the disk such that the carriage is held abutting against the stopper. Since the protrusion is forced against the thread portion of the screw, the head is moved away from the disk.

REFERENCES:
patent: 4333116 (1982-06-01), Schoettle et al.
patent: 4652952 (1987-03-01), Maeda
patent: 4667524 (1987-05-01), Kozawa et al.
patent: 4864445 (1989-09-01), Tezuka
patent: 5073832 (1991-12-01), Ohashi et al.

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