Fujitsu Corporation

Kazunori Akama

Yoshihiro Arikawa

Hirofumi Suzuki

Yasuhiko Kato

A lever and a weight are supported on a first shaft for swinging movement in a latch mechanism. The weight gets closer to a head actuator member based on swinging movement in a first direction. A restriction member restricts the swinging movement of the weight in a second direction opposite to the first direction. A swinging member is contacted with the lever swinging around the first shaft so that the swinging member gets into a predetermined path of the head actuator member through the swinging movement around the second shaft. The disk drive always allows the weight, the lever and the swinging member to start swinging from corresponding inoperative positions, even if the disk drive suffers from a sequential driving force in opposite directions due to impact. A head slider at the tip end of the head actuator member is reliably prevented from colliding against the disk.

Disk drive internal latch assembly with movement restriction member to generate opposing rotation moments on shaft opposing sides

A recording medium drive such as a hard disk drive includes a ramp member. The ramp member receives the tip end of a head actuator. A head slider is thus kept at a position spaced from the recording medium even when the recording medium stands still. A rectifier plate is formed on the ramp member and opposed to the surface of the recording medium at a distance. The rectifier plate serves to sufficiently suppress turbulence of airflow generated along the surface of the rotating recording medium. The suppression of the turbulence in this manner leads to prevention of oscillation of the head slider. The head slider can thus be positioned right at a target point at a higher accuracy. The recording medium drive of the type is capable of greatly contributing to a higher recording density.

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Kawasaki, Japan

Kazunori Akama