JPS6319950B2 - - Google Patents
Info
- Publication number
- JPS6319950B2 JPS6319950B2 JP5855581A JP5855581A JPS6319950B2 JP S6319950 B2 JPS6319950 B2 JP S6319950B2 JP 5855581 A JP5855581 A JP 5855581A JP 5855581 A JP5855581 A JP 5855581A JP S6319950 B2 JPS6319950 B2 JP S6319950B2
- Authority
- JP
- Japan
- Prior art keywords
- slider
- air
- magnetic head
- air inflow
- outflow side
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000000694 effects Effects 0.000 claims description 5
- 230000007423 decrease Effects 0.000 description 3
- 238000005339 levitation Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000001965 increasing effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/60—Fluid-dynamic spacing of heads from record-carriers
- G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
Description
【発明の詳細な説明】
本発明はスウイングアームアクチユエータ方式
の磁気デイスク装置における浮動形磁気ヘツドの
スライダに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a slider of a floating magnetic head in a swing arm actuator type magnetic disk device.
従来、浮動形磁気ヘツドのスライダは、その長
手方向に沿つて傾斜面部と平面部とからなるスラ
イダレールを備えている。このスライダレール部
のサイドエツジ部には加工上の理由および磁気デ
イスクとの接触損傷防止の観点から、例えば45゜
程度の大きな面取りを施していた。このスライダ
をスウイングアームアクチユエータ方式の磁気デ
イスク装置に使用した場合、スライダはスウイン
グアームアクチユエータにより磁気デイスクの中
間部を中心にして左右に15゜の範囲で移動する。
このとき、スライダは磁気デイスクの周方向接線
に対して傾き角を持つことになるので、スライダ
にはその側面に斜め方向から空気が流入すること
になる。このようにスライダの側面に向つて空気
が流入すると、傾斜面部による圧力の上昇作用が
なく直接平面部で圧力が生じる。この平面部の圧
力は傾斜面部のある場合に比べて小さい。このた
めスライダの浮上量は急激に減少し、磁気デイス
クとスライダとが接触しやすくなり、最悪の場合
にはスライダが墜落し、磁気デイスクの記憶面を
破壊することがあつた。 Conventionally, a slider of a floating magnetic head has a slider rail consisting of an inclined surface part and a flat part along its longitudinal direction. For processing reasons and to prevent damage from contact with the magnetic disk, the side edges of the slider rail are chamfered to a large degree, for example, at an angle of about 45 degrees. When this slider is used in a swing arm actuator type magnetic disk device, the slider is moved by the swing arm actuator within a range of 15 degrees left and right around the middle of the magnetic disk.
At this time, since the slider has an inclination angle with respect to the circumferential tangent of the magnetic disk, air flows into the slider from an oblique direction to the side surface of the slider. When air flows toward the side surface of the slider in this manner, pressure is generated directly on the flat surface without the pressure increasing effect caused by the inclined surface. The pressure on this flat portion is smaller than that in the case where there is an inclined surface portion. As a result, the flying height of the slider decreases rapidly, making it easy for the magnetic disk and slider to come into contact with each other, and in the worst case scenario, the slider may fall and destroy the storage surface of the magnetic disk.
本発明は上述の事柄にもとづいてなされたもの
で、スライダへの空気の流入角が変化しても、浮
上量の減少を抑えることができる浮動形磁気ヘツ
ドのスライダを提供することを目的とする。 The present invention has been made based on the above-mentioned problems, and an object of the present invention is to provide a slider for a floating magnetic head that can suppress a decrease in flying height even if the angle of air inflow into the slider changes. .
本発明の特徴とするところは、空気流入側から
流出側に向つて傾斜面部と平面部とからなるスラ
イダレールを備える浮動形磁気ヘツドのスライダ
において、スライダレールの平面部の長手方向中
間部にへこみ部を設けて、前記平面部を空気流入
側の平面部と空気流出側の平面部とに構成し、空
気流出側平面部の空気流入部分は、そのへこみ深
さ変化をゆるやかに形成したくさび作用構造とし
たものである。 The present invention is characterized in that, in a slider of a floating magnetic head, which includes a slider rail consisting of an inclined surface part and a flat part from the air inflow side to the air outflow side, a recess is formed in the longitudinal middle part of the flat part of the slider rail. The plane part is formed into an air inflow side plane part and an air outflow side plane part, and the air inflow part of the air outflow side plane part has a wedge effect in which the depth of the recess is gradually changed. It is a structure.
以下本発明の実施例を図面を参照して説明す
る。 Embodiments of the present invention will be described below with reference to the drawings.
第１図および第２図は本発明の浮動形磁気ヘツ
ドのスライダの一実施例を示すもので、図におい
て１はスライダ本体、２はスライダ本体１の下面
に形成されたスライダレールである。スライダレ
ール２はスライダ本体１の幅方向端においてその
長手方向に配置されている。このスライダレール
２はその長手方向における空気流入側から、傾斜
面部３とこれに続く空気流入側の平面部４とスラ
イダ本体１側へのへこみ部５と空気流出側の平面
部６からなつている。へこみ部５は、前述の空気
流出側平面部の空気流入部分に、ゆるやかに変化
するくさび作用面が形成されるように、スライ
ダ、レール２の平面部のほぼ中間部に設けられる
ものであり、この実施例では、スライダレール面
側に中心をもつ半径R1による円弧面で形成され
ている。これにより、へこみ部５における前記空
気流入側平面部４及び空気流出側平面部６近傍部
分、即ち、空気流入側平面部４の空気流出部分及
び空気流出側平面部６の空気流入部分は、へこみ
深さがゆるやかに変化するようになつている。 1 and 2 show an embodiment of the slider of the floating magnetic head of the present invention. In the figures, 1 is a slider body, and 2 is a slider rail formed on the lower surface of the slider body 1. FIG. The slider rail 2 is arranged at the widthwise end of the slider body 1 in its longitudinal direction. This slider rail 2 consists of, from the air inflow side in its longitudinal direction, a sloped surface portion 3, a flat surface portion 4 on the air inflow side, a recessed portion 5 toward the slider body 1 side, and a flat surface portion 6 on the air outflow side. . The recessed portion 5 is provided approximately in the middle of the flat portion of the slider and the rail 2 so that a gently changing wedge effect surface is formed at the air inflow portion of the air outflow side flat portion. In this embodiment, it is formed of an arcuate surface having a radius R1 centered on the slider rail surface side. As a result, the portions of the recessed portion 5 near the air inflow side flat portion 4 and the air outflow side flat portion 6, that is, the air outflow portion of the air inflow side flat portion 4 and the air inflow portion of the air outflow side flat portion 6 are recessed. The depth is gradually changing.
次に上述した本発明の浮動形磁気ヘツドのスタ
イダの一実施例の動作を説明する。 Next, the operation of one embodiment of the above-described floating magnetic head slider of the present invention will be described.
スライダがスウイングアームアクチユエータに
より磁気デイスクのほぼ中間に位置しているとき
には、スライダのスライダレール２には、その傾
斜面部３から長手方向に沿い空気が流入するの
で、傾斜面部３のくさび軸受作用により、正常な
浮上力を得ることができる。また、スライダが磁
気デイスクの開始または終了時に相当する位置に
位置した場合には、第２図に示すようにスライダ
の側面から空気Ａが流入することになるが、傾斜
面部３と平面部４とによる軸受作用と、へこみ部
５の空気流出側、即ち、空気流出側平面部６の空
気流入部分に形成されたゆるやかに変化するくさ
び作用面と、空気流出側平面部６。とによる軸受
作用との２つの軸受作用によつて、スライダは安
定に浮上される。また、これらの軸受作用はくさ
び軸受作用となるため、低速状態でも浮上しやす
いものである。さらに、へこみ部５における各平
面部４，６近傍部分はそのへこみ深さがゆるやか
に変化しているので、スライダレール２に発生す
る圧力分布もゆるやかに変化する。この結果、空
気流の急激な体積変化により生じる結露およびご
み付着を防止することができる。 When the slider is positioned approximately in the middle of the magnetic disk by the swing arm actuator, air flows into the slider rail 2 of the slider along the longitudinal direction from the inclined surface portion 3, so that the wedge bearing action of the inclined surface portion 3 This allows normal levitation force to be obtained. Furthermore, when the slider is located at a position corresponding to the start or end of the magnetic disk, air A will flow in from the side of the slider as shown in FIG. the air outflow side of the recessed portion 5, that is, the gently changing wedge action surface formed at the air inflow portion of the air outflow side flat portion 6; and the air outflow side flat portion 6. The slider is stably floated by the two bearing actions of the and. Furthermore, since these bearings act as wedge bearings, they tend to float even at low speeds. Further, since the depth of the recess in the recessed portion 5 in the vicinity of each of the flat parts 4 and 6 changes gradually, the pressure distribution generated in the slider rail 2 also changes gradually. As a result, it is possible to prevent dew condensation and dust adhesion caused by rapid volume changes in air flow.
なお上述の実施例はへこみ部５を同一半径R1
による円弧面として形成したが、第３図および第
４図に示すようにへこみ部５をスライダレール背
面側に中心をもつ半径R2による２つの円弧面７
ａ，７ｂで形成してもよいし、また第５図および
第６図に示すようにへこみ部５を２つの傾斜面８
ａ，８ｂで形成してもよいし、さらに第７図およ
び第８図に示すようにへこみ部５を円弧面９ａ，
９ｂと平面１０とで形成してもよい。また第９図
および第１０図に示すようにへこみ部５を傾斜面
１１ａ，１１ｂと平面１２とで形成してもよい。
さらに第１１図および第１２図に示すようにへこ
み部５を空気流入側から流出側に向う１つの傾斜
面１３で形成することも可能である。 In addition, in the above embodiment, the recessed portion 5 has the same radius R 1
However, as shown in FIGS. 3 and 4, two circular arc surfaces 7 with a radius R 2 with the concave portion 5 centered on the back side of the slider rail are formed.
a and 7b, or as shown in FIGS.
a, 8b, or as shown in FIGS.
9b and a flat surface 10. Further, as shown in FIGS. 9 and 10, the recessed portion 5 may be formed of inclined surfaces 11a, 11b and a flat surface 12.
Furthermore, as shown in FIGS. 11 and 12, it is also possible to form the recessed portion 5 with one inclined surface 13 extending from the air inflow side to the air outflow side.
要は、へこみ部５によつて、スライダレールの
平面部を空気流入側平面部と空気流出側平面部に
構成したとき、空気流出側平面部の空気流入側部
分にくさび作用をなすようにゆるやかに変化する
くさび作用面を形成すればよい。これによつて、
スライダが磁気デイスクの周方向接線に対して傾
き角をもち、スライダの側面から空気が流入する
場合でも、スライダレール２には２個所にくさび
軸受作用をもたすことができ、スライダを安定に
浮上することができる。 The point is that when the flat part of the slider rail is configured into an air inflow side flat part and an air outflow side flat part, the recessed part 5 gently wedges the air inflow side part of the air outflow side flat part. What is necessary is to form a wedge action surface that changes as follows. By this,
Even if the slider has an inclination angle with respect to the circumferential tangent of the magnetic disk and air flows in from the side of the slider, the slider rail 2 can have wedge bearing action at two locations, making the slider stable. Can levitate.
また、スライダの側面からの空気の流入を良好
にして空気流出側の平面部６での軸受作用の効果
を高めるために、へこみ部５は第１３図〜第１６
図に示すように深溝１４，１５を設けることも可
能である。 In addition, in order to improve the inflow of air from the side surface of the slider and enhance the effect of the bearing action on the flat surface part 6 on the air outflow side, the recessed part 5 is formed as shown in FIGS. 13 to 16.
It is also possible to provide deep grooves 14, 15 as shown in the figure.
このように構成すると、空気流出側平面部６で
の軸受特性は、空気流出側平面部６の空気流入部
分及びその上流側の深溝１４，１５のすき間分布
に影響される。深溝１４，１５のない場合、空気
流入側平面部４をでた流れはへこみ部５の前半で
広がり、再び圧縮されるが、流れ方向の空気の補
充がないため、空気流出側平面部６での圧縮によ
る圧力上昇は低下する。深溝１４，１５を設ける
ことにより、空気補充が行われ、空気流出側平面
部６における軸受作用の効果はより高められる。 With this configuration, the bearing characteristics at the air outflow side flat portion 6 are influenced by the air inflow portion of the air outflow side flat portion 6 and the gap distribution between the deep grooves 14 and 15 on the upstream side thereof. If the deep grooves 14 and 15 are not provided, the flow leaving the air inlet side plane part 4 will spread in the first half of the concave part 5 and be compressed again, but since there is no replenishment of air in the flow direction, the flow will not reach the air outlet side plane part 6. The pressure increase due to compression decreases. By providing the deep grooves 14 and 15, air is replenished, and the effect of the bearing action on the air outflow side flat portion 6 is further enhanced.
以上詳述したように、本発明によれば、スライ
ダのスライダレールで発生する圧力分布はなめら
かに変化するので、低速状態でも浮上しやすい。
また、スライダの傾き角が増大しても従来と同様
な浮上力が得られ、磁気デイスクへの墜落を防止
することができるものである。 As described in detail above, according to the present invention, the pressure distribution generated on the slider rail of the slider changes smoothly, so that the slider easily floats even in a low speed state.
Further, even if the tilt angle of the slider increases, the same levitation force as in the prior art can be obtained, and it is possible to prevent the slider from falling onto the magnetic disk.
図面は本発明の浮動形磁気ヘツドのスライダの
実施例を示すもので、第１図は第１実施例を示す
側面図、第２図はその底面図、第３図は第２実施
例を示す側面図、第４図はその底面図、第５図は
第３実施例を示す側面図、第６図はその底面図、
第７図は第４実施例を示す側面図、第８図はその
底面図、第９図は第２実施例を示す側面図、第１
０図はその底面図、第１１図は第６実施例を示す
側面図、第１２図はその底面図、第１３図は第７
実施例を示す側面図、第１４図はその底面図、第
１５図は第８実施例を示す側面図、第１６図はそ
の底面図である。
１……スライダ本体、２……スライダレール、
３……傾斜面、４……平面部、５……へこみ部、
６……平面部。
The drawings show embodiments of a slider of a floating magnetic head according to the present invention. FIG. 1 is a side view of the first embodiment, FIG. 2 is a bottom view thereof, and FIG. 3 is a second embodiment. A side view, FIG. 4 is a bottom view, FIG. 5 is a side view showing the third embodiment, FIG. 6 is a bottom view,
FIG. 7 is a side view showing the fourth embodiment, FIG. 8 is a bottom view thereof, FIG. 9 is a side view showing the second embodiment, and FIG.
Figure 0 is a bottom view of the same, Figure 11 is a side view showing the sixth embodiment, Figure 12 is a bottom view of the sixth embodiment, and Figure 13 is a seventh embodiment.
FIG. 14 is a side view showing the embodiment, FIG. 14 is a bottom view thereof, FIG. 15 is a side view showing the eighth embodiment, and FIG. 16 is a bottom view thereof. 1...Slider body, 2...Slider rail,
3... Inclined surface, 4... Flat part, 5... Recessed part,
6...Plane part.
Claims (1)
面部とからなるスライダレールを備える浮動形磁
気ヘツドのスライダにおいて、前記スライダレー
ルの平面部の長手方向中間部にへこみ部を設け
て、前記平面部を空気流入側平面部と空気流出側
平面部とに構成し、前記空気流出側平面部の空気
流入部分は、へこみ深さがゆるやかに変化するく
さび作用構造としたことを特徴とする浮動磁気ヘ
ツドのスライダ。 ２ へこみ部における空気流入側平面部及び空気
流出側平面部の近傍部分は、スライダレール面側
に中心をもつ円弧面で形成されていることを特徴
とする特許請求の範囲第１項記載の浮動形磁気ヘ
ツドのスライダ。 ３ へこみ部における空気流入側平面部及び空気
流出側平面部の近傍部分は、スライダレールの背
面側に中心をもつ円弧面で形成されていることを
特徴とする特許請求の範囲第１項記載の浮動形磁
気ヘツドのスライダ。 ４ へこみ部における空気流入側平面部及び空気
流出側平面部の近傍部分は、傾斜面で形成されて
いることを特徴とする特許請求の範囲第１項記載
の浮動形磁気ヘツドのスライダ。 ５ へこみ部は、その一部にスライダ側方から流
入する空気の流入を許容するスライダレール幅方
向の切欠溝を備えていることを特徴とする特許請
求の範囲第１項〜第４項のいずれかに記載の浮動
形磁気ヘツドのスライダ。[Scope of Claims] 1. In a slider of a floating magnetic head comprising a slider rail consisting of an inclined surface part and a flat part from the air inflow side to the air outflow side, a recessed part is provided at a longitudinally intermediate part of the flat part of the slider rail. , the plane part is formed into an air inflow side plane part and an air outflow side plane part, and the air inflow part of the air outflow side plane part has a wedge effect structure in which the recess depth gradually changes. A floating magnetic head slider featuring: 2. The floating device according to claim 1, wherein a portion of the concave portion near the air inflow side flat portion and the air outflow side flat portion is formed of an arcuate surface having a center on the slider rail surface side. Shaped magnetic head slider. 3. A portion of the concave portion near the air inflow side flat portion and the air outflow side flat portion is formed of an arcuate surface having a center on the back side of the slider rail. Floating magnetic head slider. 4. The slider of a floating magnetic head according to claim 1, wherein the portions of the recessed portion near the air inflow side flat portion and the air outflow side flat portion are formed as inclined surfaces. 5. Any one of claims 1 to 4, wherein the recessed portion is provided with a cutout groove in the width direction of the slider rail that allows air to flow in from the side of the slider. The slider of the floating magnetic head described in .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5855581A JPS57176565A (en) | 1981-04-20 | 1981-04-20 | Slider for floating type magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5855581A JPS57176565A (en) | 1981-04-20 | 1981-04-20 | Slider for floating type magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57176565A JPS57176565A (en) | 1982-10-29 |
| JPS6319950B2 true JPS6319950B2 (en) | 1988-04-25 |
Family
ID=13087695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5855581A Granted JPS57176565A (en) | 1981-04-20 | 1981-04-20 | Slider for floating type magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57176565A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6022782A (en) * | 1983-07-15 | 1985-02-05 | Mitsubishi Electric Corp | Flying head slider |
| JPS61962A (en) * | 1985-06-12 | 1986-01-06 | Hitachi Ltd | Slider of floating magnetic head |
| US4757402A (en) * | 1986-10-03 | 1988-07-12 | Censtor Corp. | Slider assembly for supporting a magnetic head |
-
1981
- 1981-04-20 JP JP5855581A patent/JPS57176565A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57176565A (en) | 1982-10-29 |
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