disk device

A disk and housing technology, applied in the configuration/installation of disks, disk-shaped record carriers, and recording heads, can solve the problems of increasing the number of disks in height, increasing the diameter of slope entrances and exits, and the distance between entrances and exits. , to achieve the effect of increasing the number of settings

Active Publication Date: 2021-09-28
KK TOSHIBA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to ensure reliable head loading and unloading operations, it is necessary to increase the entrance and exit diameter of the slope and the distance between the entrance and exit to be able to cope with the height variation of the top of the protrusion, which becomes an obstacle in reducing the height dimension of the slope and increasing the number of disks.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment approach

[0035] As a disk device, a hard disk drive (HDD) according to the embodiment will be described in detail.

[0036] figure 1 It is an exploded perspective view of the HDD of the embodiment shown with the cover removed, figure 2 It is a top view of the HDD with the cover removed.

[0037] Such as figure 1 As shown, the HDD includes a rectangular housing 10 . The housing 10 has a rectangular box-shaped base 12 with an open upper surface and a cover (top cover) 14 . The base body 12 has a rectangular bottom wall 12 a and side walls 12 b erected along the periphery of the bottom wall, and is integrally formed of, for example, aluminum. The cover 14 is formed in a rectangular plate shape, for example, from stainless steel. The cover 14 is threadedly fastened to the side wall 12b of the base body 12 by a plurality of screws 13 to airtightly close the upper opening of the base body 12 .

[0038] Such as figure 1 and figure 2 As shown, a plurality of, for example, ten magneti...

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Abstract

The disk device according to the embodiment includes: a casing; at least two rotatable magnetic disks arranged in the casing and facing each other at a distance of 1.2 mm to 1.5 mm; and at least two suspensions that can be arranged between the magnetic disks. components. The suspension assembly has: a base plate; a load beam having a convex portion at a top end; a tab extending from an extended end of the load beam; a wiring member; and a magnetic head disposed on a gimbal portion of the wiring member and via The universal joint part abuts against the convex part. A ratio (La / Lb) of the distance La from the tip of the base plate to the center of the convex portion to the distance Lb from the center of the convex portion to the tip of the protruding piece (La / Lb) is 2.8 or more and 3.8 or less.

Description

[0001] related application [0002] This application enjoys the priority of the basic application based on Japanese Patent Application No. 2019-20632 (filing date: February 7, 2019). This application includes the entire content of the basic application by referring to this basic application. technical field [0003] The embodiments described here relate to disk devices. Background technique [0004] As a disk device, for example, a hard disk drive (HDD) includes a plurality of magnetic disks rotatably arranged in a casing, a plurality of magnetic heads for reading and writing information on the magnetic disks, and a head for supporting the magnetic heads so as to be movable relative to the magnetic disks. actuator. [0005] The head actuator has an actuator block rotatably supported, and a plurality of head suspension assemblies (referred to as head gimbal assemblies) each extending from the actuator block and supporting a magnetic head at the tip. The head suspension ass...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B21/12G11B33/04
CPCG11B21/12G11B33/0466G11B25/043G11B5/4826G11B5/4833G11B5/4873G11B2220/2508
Inventor 上原学
Owner KK TOSHIBA
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