JPH0211501U

JPH0211501U -

Info

Publication number: JPH0211501U
Application number: JP8699188U
Authority: JP
Priority date: 1988-06-30
Filing date: 1988-06-30
Publication date: 1990-01-24

Description

[Brief explanation of drawings]

第１図は本考案をスイングアーム方式のハード
デイスク装置に適用した場合の一実施例を示す図
、第２図は第１図の磁気ヘツドを示す図、第３図
は第１図のリード／ライト制御部を示すブロツク
図、第４図は第１図のハードデイスク装置の動作
を示すフローチヤート、第５図は第１図の磁気デ
イスク上での磁気ヘツドのヘツドギヤツプのセレ
クト位置を示す図、第６図は第１図のハードデイ
スク装置の動作結果をまとめた図、第７図は従来
のハードデイスク装置を示す図である。１０……ピボツトシヤフト、１１……ボイスコ
イル、１２……アーム、１３……磁気ヘツドサス
ペンシヨン、１４……スライダ、１５，１６……
ヘツドキヤツプ、１７……磁気ヘツド、１８……
スピンドルモータ、１９……磁気デイスク、２０
……トラツク、２１……バス、２２……ＣＰＵ、
２３……ヘツド位置検出部、２４……リード／ラ
イトドライバ、２５……ヘツドギヤツプセレクタ
。 Fig. 1 is a diagram showing an embodiment of the present invention applied to a swing arm type hard disk device, Fig. 2 is a diagram showing the magnetic head of Fig. 1, and Fig. 3 is a diagram showing the read/write of Fig. 1. 4 is a flowchart showing the operation of the hard disk device shown in FIG. 1; FIG. 5 is a diagram showing the select position of the head gap of the magnetic head on the magnetic disk shown in FIG. 1; and FIG. This figure is a diagram summarizing the operation results of the hard disk device shown in FIG. 1, and FIG. 7 is a diagram showing a conventional hard disk device. 10... Pivot shaft, 11... Voice coil, 12... Arm, 13... Magnetic head suspension, 14... Slider, 15, 16...
Head cap, 17...Magnetic head, 18...
Spindle motor, 19...Magnetic disk, 20
...Truck, 21...Bus, 22...CPU,
23...Head position detection unit, 24...Read/write driver, 25...Head gap selector.

Claims

[Scope of utility model registration request]

A disk having coarse track spacing on the inner circumferential side and close track spacing on the outer circumferential side, and a head having a plurality of head gaps having different gap widths;
a position detecting means for detecting the position of the head on the disk, and a head gap side where the gap width of the head is wide if the head is located on the inner circumferential side of the disk based on the detection result of the position detecting means. and switching means for switching to drive a head gap side having a narrower gap width when the head is located on the outer peripheral side of the disk.