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Magnetic disk device and head stack assembly

A technology of a magnetic disk device and a magnetic head group, which is applied in the directions of the magnetic head, magnetic recording, and head configuration relative to the rotating disk, can solve the problems of increasing the production cost of the actuator, and achieve the effect of ensuring the positioning accuracy.

Inactive Publication Date: 2009-06-17
HITACHI GLOBAL STORAGE TECH NETHERLANDS BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is to suppress an increase in production cost by utilizing an actuator having the same structure and adjusting the number of suspensions mounted thereon, since the production cost of the actuator will vary when the structure of the actuator varies with the storage capacity of the magnetic disk device. rise

Method used

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  • Magnetic disk device and head stack assembly
  • Magnetic disk device and head stack assembly
  • Magnetic disk device and head stack assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] figure 1 is a plan view showing the schematic configuration of the magnetic disk device according to Embodiment 1, and figure 2 is a perspective view of the actuator. One or more magnetic disks 12 for recording information are placed in a magnetic disk device 10, which includes: a spindle motor 14 for rotating the magnetic disks 12; A slider 16 for the magnetic head; a suspension 18 for supporting the slider 16 ; an actuator 26 having a plurality of arms 22 to which the suspension 18 or plate 20 is attached; and a voice coil 24 . The actuator 26 is rotatably supported with respect to the rotary shaft 28 and can move the slider 16 in the radial direction of the magnetic disk 12 via the suspension 18 . The suspension 18 applies a predetermined load to the slider 16, and the slider 16 floats above the disk when the load is balanced by the lift force from the viscose laminar flow generated by the rotation of the disk 12. here, as figure 2 The structure shown is referr...

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Abstract

Embodiments of the present invention relate disk drives, and in particular to realizing a positioning accuracy equal to that of an actuator having the mountable maximum number of suspensions, in an actuator having the smaller number of suspensions than the mountable maximum number. An embodiment of a magnetic disk device includes an actuator having an arm to which a suspension for applying a predetermined load onto a slider with a magnetic head is attached, and an arm to which a plate is attached instead of having the suspension. The plate attached to the arm in place of the suspension has a partially small section with respect to a section perpendicular to an arm longitudinal direction (constricted part), and the constricted part is located between a plate leading end and an arm attachment part.

Description

technical field [0001] The present invention relates to a magnetic disk device structure. More specifically, the present invention relates to improvement of positioning accuracy of a magnetic head of a magnetic disk device. Background technique [0002] The magnetic disk device includes: a magnetic disk for storing magnetic information; a slider mounted thereon with a magnetic head for recording or reproducing magnetic information in the magnetic disk; actuators. The actuator has: a suspension for fixing the slider at its front end side and applying a predetermined load to the slider; and an arm for fixing the base side of the suspension. [0003] Among the magnetic disk devices are: a magnetic disk device including an actuator having the maximum number of mountable suspensions (hereinafter referred to as A); and a magnetic disk device including an actuator , the actuator has a smaller number of suspensions than the above-mentioned magnetic disk device for reducing its st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B5/48
CPCG11B5/4813G11B5/6005G11B5/4886
Inventor 大竹智尚渡边惠子清水利彦富田谦二
Owner HITACHI GLOBAL STORAGE TECH NETHERLANDS BV
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