Magnetic head transferring device of hard disk drive

Details Magnetic head transferring device of hard disk drive Magnetic head transferring device of hard disk drive

1998-08-19

2000-05-09

Evans, Jefferson

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 554

Patent

active

06061207&

ABSTRACT:
In a magnetic head transferring device, of a hard disk drive, a locking member is provided to lock a rotor after the magnetic head is moved to a parking zone formed on a hard disk. The locking member includes a bimetal member which reversibly deforms when heated by an electric current supplied from a power supply source. The rotor has a coupling slot through which one side of the bimetal member selectively inserts into or separates from as the bimetal member deforms. Thus, since the rotation of the rotor is locked or unlocked using the bimetal member operating according to the turning on/off of power, an abnormal movement of the magnetic head is prevented regardless of the strength of external impacts.

REFERENCES:
patent: 4691258 (1987-09-01), Kobayashi et al.
patent: 4996617 (1991-02-01), Yaeger et al.
patent: 5805384 (1998-09-01), Bronshvatch et al.
patent: 5872075 (1999-02-01), Hickox

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