Magnetic latch assembly for a disk drive including a ferromagnet

Details Magnetic latch assembly for a disk drive including a ferromagnet Magnetic latch assembly for a disk drive including a ferromagnet

1996-04-02

1998-10-13

Renner, Craig A.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 2122

Patent

active

058221557

ABSTRACT:
A magnetic latch assembly for immobilizing a read/write head of a disk drive is provided which magnetically couples to an actuator assembly housing the read/write head with enhanced force. A disk drive which includes the magnetic latch assembly is also provided. The magnetic latch assembly includes a magnet and a magnet holder including ferromagnetic material which at least partially surrounds the magnet and provides a medium through which flux produced by one pole of the magnet travels to an opposing pole of the magnet. The latch assembly magnetically couples the actuator assembly by contacting the actuator assembly in an area adjacent one of the poles of the magnet. In one embodiment, the magnet holder includes ferromagnetic material which surrounds the magnet. In another embodiment, the magnet holder includes a plurality of ferromagnetic flanges which at least partially surround the magnet.

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