Head transport mechanism for disc drive apparatus

Details Head transport mechanism for disc drive apparatus Head transport mechanism for disc drive apparatus

1997-11-17

1999-04-20

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 555, G11B 2108

Patent

active

058962506

ABSTRACT:
A head transport mechanism for reciprocating a carriage in a radial direction of a disc using a linear motor as a drive source is disclosed. In the head transport mechanism, cylindrical projections are formed on a support plate, threads are cut on the inner surfaces of the projections, and cutouts are formed in the distal ends of bottom yokes. The cutouts are brought into contact with the outer peripheral surfaces of the projections so as to locate the bottom yoke. In addition, protrusions protruding outward from superposed portions of the bottom yokes and top yokes in a longitudinal and/or lateral direction of the bottom yokes are formed in at least one end of each of the bottom yokes so that the top yokes can be assembled with the protrusions pressed when assembling the head transport mechanism.

REFERENCES:
patent: 4992684 (1991-02-01), Matsui
patent: 5130873 (1992-07-01), Yumura et al.
patent: 5136446 (1992-08-01), Yamamoto et al.
patent: 5138605 (1992-08-01), Shtipelman et al.
patent: 5818666 (1998-10-01), Chaya

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