JPH021741Y2 - - Google Patents

Info

Publication number
JPH021741Y2
JPH021741Y2 JP20284183U JP20284183U JPH021741Y2 JP H021741 Y2 JPH021741 Y2 JP H021741Y2 JP 20284183 U JP20284183 U JP 20284183U JP 20284183 U JP20284183 U JP 20284183U JP H021741 Y2 JPH021741 Y2 JP H021741Y2
Authority
JP
Japan
Prior art keywords
carriage
guide
guide surfaces
frame
parallel
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
Application number
JP20284183U
Other languages
Japanese (ja)
Other versions
JPS60106260U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP20284183U priority Critical patent/JPS60106260U/en
Publication of JPS60106260U publication Critical patent/JPS60106260U/en
Application granted granted Critical
Publication of JPH021741Y2 publication Critical patent/JPH021741Y2/ja
Granted legal-status Critical Current

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  • Bearings For Parts Moving Linearly (AREA)
  • Moving Of Heads (AREA)

Description

【考案の詳細な説明】 〔技術分野〕 本考案は磁気デイスク駆動装置に関する。[Detailed explanation of the idea] 〔Technical field〕 The present invention relates to a magnetic disk drive device.

〔従来技術〕[Prior art]

磁気デイスク駆動装置において、磁気ヘツドを
磁気デイスク上の所定のトラツク位置に移動させ
るヘツドアクチユエータ機構の直線案内方法とし
ては、従来、第4図に示すように、プーリベアリ
ング101を3個用いた形式がとられていた。
(US−4323939)しかしこの方式によれば、プー
リベアリング101はガイド軸102及び103
により挾まれておりアジアルすきまはないが、ア
キシアル方向への動きは避けられずヘツドキヤリ
ツジ1の上下動や傾きを生じ、特に傾きが生じた
場合にはヘツドは所定のトラツク位置に対してず
れを生ずるという大きな問題が存在した。さらに
キヤリツジとフレームの間にスライド軸やベアリ
ングが介在するため、キヤリツジの高さ精度を保
持するのが難しく、また前記の部品を使用するた
めにアクチユエータ系の小型化、低価格化、が困
難であつた。
In a magnetic disk drive device, three pulley bearings 101 have been conventionally used as a linear guiding method for a head actuator mechanism that moves a magnetic head to a predetermined track position on a magnetic disk, as shown in FIG. The format was taken.
(US-4323939) However, according to this method, the pulley bearing 101 is connected to the guide shafts 102 and 103.
Although the head carriage 1 is sandwiched between the head carriages and there is no radial clearance, movement in the axial direction is unavoidable, causing vertical movement and tilting of the head carriage 1. Especially when tilting occurs, the head shifts from the predetermined track position. There was a big problem. Furthermore, since the slide shaft and bearings are interposed between the carriage and the frame, it is difficult to maintain the height accuracy of the carriage, and the use of the above-mentioned parts makes it difficult to downsize and lower the cost of the actuator system. It was hot.

また、第5図に示す他の実施例は8インチ型以
上の機種にしばしば用いられてきた方法で、キヤ
リツジの上下動や傾きはないが、ベアリング10
4を多数(通常6コ〜8コ)用いるために、やは
り、大型で高価格な機構であり、小型低価格な駆
動装置に用いるのは困難であつた。
Another embodiment shown in FIG. 5 is a method that has often been used for models of 8 inches or larger, and there is no vertical movement or tilting of the carriage, but the bearing 10
Since a large number of 4 (usually 6 to 8) are used, it is still a large and expensive mechanism, and it is difficult to use it in a small and inexpensive drive device.

〔目的〕〔the purpose〕

本考案は、かかる問題点を解決するため、フレ
ーム2,キヤリツジ1に各々鋼球14,15の案
内面を設け、鋼球を介して案内することによつ
て、キヤリツジ上下動、傾きを抑制して位置決め
精度を向上し、また高さ方向の位置精度も向上さ
せると同時に、部品点数を削減することによつて
装置の小型化、低価格化を行うことを目的とす
る。
In order to solve this problem, the present invention provides guide surfaces for steel balls 14 and 15 on the frame 2 and the carriage 1, respectively, and guides them through the steel balls, thereby suppressing vertical movement and tilting of the carriage. The purpose of the present invention is to improve the positioning accuracy in the height direction, and to also improve the positioning accuracy in the height direction, and at the same time to reduce the number of parts, thereby making the device smaller and cheaper.

〔概要〕 本考案の磁気デイスク駆動装置は、移動方向両
側に、互いに直交した2つの平面からなるキヤリ
ツジ案内面を2組有するヘツドキヤリツジと、前
記案内面に対して、一方はキヤリツジ側と同様な
直交2平面からなる案内面をなし、他方は傾斜面
である案内面を有するフレームとから構成され、
該キヤリツジ及びフレームの相対する2対の案内
面に対して、直交平面同志の一対に対し鋼球を2
個配置し、直交平面と傾斜平面からなる他方の一
対に対し鋼球を一個配置し、前記鋼球のころがり
案内によつてキヤリツジを直線運動させるヘツド
アクチユエータを有することを特徴とする。
[Summary] The magnetic disk drive device of the present invention includes a head carriage that has two sets of carriage guide surfaces made of two planes orthogonal to each other on both sides in the direction of movement, and one set of carriage guide surfaces that are orthogonal to the guide surfaces similar to those on the carriage side. It is composed of a frame having a guide surface consisting of two planes, the other of which is an inclined surface,
Two pairs of steel balls are placed on each pair of orthogonal planes on the two opposing guide surfaces of the carriage and frame.
One steel ball is arranged for the other pair consisting of an orthogonal plane and an inclined plane, and the carriage is characterized by having a head actuator that linearly moves the carriage by rolling guide of the steel ball.

〔実施例〕〔Example〕

以下、本考案の実施例について図に基づき詳細
に説明する。
Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

第1図は本実施例の見取り図であり、第2図は
その断面図である。
FIG. 1 is a sketch of this embodiment, and FIG. 2 is a sectional view thereof.

第1図において、1はヘツドキヤリツジを示し
2はフレームを示している。ヘツドキヤリツジ1
にはヘツドブロツク3が取り付けられており、さ
らにヘツド4が取付けられており、キヤリツジが
デイスク5の回転中心に対して直線運動を行うこ
とによつてヘツド4を所定のトラツクに位置決め
を行う。
In FIG. 1, 1 represents a head carriage and 2 represents a frame. head carriage 1
A head block 3 is attached to the disk, and a head 4 is attached thereto, and the carriage moves linearly about the center of rotation of the disk 5, thereby positioning the head 4 on a predetermined track.

第2図は装置後方より見たアクチユエータ部の
断面図を示す。キヤリツジ1には、移動方向に平
行で装置に対して水平である案内面9,11と、
同じく垂直である案内面8,10がキヤリツジの
両側に設けられている。従つて案内面8と9、1
0と11は直角な溝部をなしている。フレーム2
にはやはり移動方向に平行な案内面が2対設けら
れているが、一方はキヤリツジの場合と同じく装
置に対して水平及び垂直である2つの平面6,7
よりなり、他方は傾斜をなす1つの平面12より
構成されている。案内面8,9及び6,7からな
る案内部には鋼球14が2個組込まれておりキヤ
リツジの進行方向を規制している。また2個の鋼
球は保持器19で間隔を維持され案内面よりの脱
落や相対位置の移動を防止している。もう一方の
案内部は直角な案内面10,11とそれらに対し
て傾斜して相対している案内面12からなり鋼球
15が1個使用されている。以上3個の鋼球によ
つてキヤリツジはころがり直線案内され上下方向
に対しては常に3点でキヤリツジ1が支持され傾
きを生ずることはない。また12以外の案内面は
水平あるいは垂直面であるので精度よく加工で
き、フレームに取付けられている主軸モータ、ス
テツピングモータ等との位置関係も正確であり、
鋼球も真球度が高く直径のそろつたものが容易に
入手できるので、キヤリツジの高さを正確に設定
できる。
FIG. 2 shows a cross-sectional view of the actuator section seen from the rear of the device. The carriage 1 has guide surfaces 9, 11 parallel to the direction of movement and horizontal to the device;
Guide surfaces 8, 10, which are also vertical, are provided on both sides of the carriage. Therefore, guide surfaces 8 and 9, 1
0 and 11 form right-angled grooves. frame 2
is again provided with two pairs of guide surfaces parallel to the direction of movement, but one with two planes 6, 7, horizontal and perpendicular to the device, as in the case of the carriage.
The other side is composed of one plane 12 that is inclined. Two steel balls 14 are incorporated into the guide section consisting of the guide surfaces 8, 9 and 6, 7 to regulate the direction of movement of the carriage. Furthermore, the two steel balls are maintained at a distance by a retainer 19 to prevent them from falling off the guide surface and from shifting relative positions. The other guide section consists of right-angled guide surfaces 10 and 11 and a guide surface 12 that faces them at an angle, and uses one steel ball 15. The carriage is guided in a rolling straight line by the three steel balls mentioned above, and the carriage 1 is always supported at three points in the vertical direction so that it does not tilt. In addition, since the guide surfaces other than 12 are horizontal or vertical surfaces, they can be machined with high precision, and the positional relationship with the main shaft motor, stepping motor, etc. attached to the frame is also accurate.
Since steel balls with high sphericity and uniform diameters are easily available, the height of the carriage can be set accurately.

以上に述べた案内部だけではキヤリツジは保持
されないので、第3図の本実施例側面図に示すよ
うに板バネ18でベアリング16をフレームに取
付けられた軸17に押しつけ、上方に予圧力を加
えてキヤリツジを保持する。板バネ18は他の種
類のバネでも同様の効果を有する。
Since the carriage cannot be held only by the guide section described above, the bearing 16 is pressed against the shaft 17 attached to the frame by the leaf spring 18, as shown in the side view of this embodiment in FIG. 3, and an upward preload is applied. to hold the carriage. Other types of leaf springs 18 have similar effects.

〔効果〕〔effect〕

以上で述べたように、本考案によればフレー
ム、キヤリツジに主として装置に対して水平また
は垂直である案内面を設け、鋼球を3個配置しそ
の転動によつて直線運動を案内しフレームとキヤ
リツジの間に介在するガイド軸やベアリング等が
ないため上下方向や前後の傾きに対してガタがな
く、位置決め精度が高い。また、案内面の加工面
がほとんど垂直あるいは水平面であるため精度よ
く加工でき鋼球も精度のよいものが容易に入手で
きるので、キヤリツジの高さ位置のばらつきを低
く押えることができ、メデイアに対するヘツド高
さが正確に実現でき、ヘツドのメデイアに対する
追随性が向上する。さらに、従来の実施例に比べ
て部品点数が少なく案内部の大きさも小さいので
機器の小型化に対して有利であり、価格も低く押
えることができる。
As described above, according to the present invention, the frame and the carriage are provided with a guide surface that is mainly horizontal or vertical to the device, three steel balls are arranged, and the linear motion is guided by the rolling of the steel balls. Since there are no guide shafts, bearings, etc. interposed between the shaft and the carriage, there is no play in vertical or longitudinal inclinations, and positioning accuracy is high. In addition, since the machining surface of the guide surface is almost vertical or horizontal, it can be machined with high precision, and high-precision steel balls can be easily obtained, so variations in the height position of the carriage can be kept low, and the head relative to the media The height can be accurately achieved, and the head's ability to follow the media is improved. Furthermore, since the number of parts is small and the size of the guide portion is small compared to conventional embodiments, it is advantageous for downsizing the equipment and the cost can be kept low.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本考案の実施例の見取図を示し、第2
図はその断面図、第3図は側面図示す。また第4
図、第5図に従来の実施例を示す。 1……キヤリツジ、2……フレーム、6〜12…
…案内面、14〜15……鋼球。
Figure 1 shows a sketch of an embodiment of the present invention;
The figure shows a sectional view, and FIG. 3 shows a side view. Also the fourth
A conventional embodiment is shown in FIG. 1...Carriage, 2...Frame, 6-12...
...Guidance surface, 14-15...steel ball.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] アクチユエータ移動方向に平行でかつ各々が装
置水平面及び垂直面に平行に設けられた2つの直
交するキヤリツジ案内面を両側面に2組有するヘ
ツドキヤリツジと、該キヤリツジ案内面に対して
一方は前記キヤリツジ案内面と同様な水平面及び
垂直面からなりかつ前記案内面に各々相対し平行
な1組の案内面及び、他方は前記案内面に対して
ある角度をなして傾斜をもつ単一の平面よりなる
案内面を2組の前記キヤリツジ案内面に対して
各々相対して配置されたフレームと、前記キヤリ
ツジ及びフレームの各案内面に対し、一方の互い
に平行な案内面間に間隔を保持して配置された2
個の鋼球及び、他方の直交2面と傾斜面の間に配
置された1個の計3個の鋼球を有し、前記キヤリ
ツジを前記フレームの方向に押圧するバネ部材を
備えることを特徴とする磁気デイスク駆動装置。
a head carriage having two sets of two orthogonal carriage guide surfaces on both sides thereof, which are parallel to the movement direction of the actuator and each parallel to the horizontal plane and the vertical plane of the device; A set of guide surfaces consisting of a horizontal plane and a vertical plane similar to the above, each facing and parallel to the guide surface, and the other a guide surface consisting of a single plane inclined at a certain angle with respect to the guide surface. two sets of frames arranged opposite to each other with respect to the carriage guide surfaces, and two sets of frames arranged with a distance maintained between one mutually parallel guide surfaces with respect to each guide surface of the carriage and frame.
and one steel ball disposed between the other two orthogonal surfaces and an inclined surface, and a spring member that presses the carriage in the direction of the frame. magnetic disk drive device.
JP20284183U 1983-12-24 1983-12-24 magnetic disk drive Granted JPS60106260U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20284183U JPS60106260U (en) 1983-12-24 1983-12-24 magnetic disk drive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20284183U JPS60106260U (en) 1983-12-24 1983-12-24 magnetic disk drive

Publications (2)

Publication Number Publication Date
JPS60106260U JPS60106260U (en) 1985-07-19
JPH021741Y2 true JPH021741Y2 (en) 1990-01-17

Family

ID=30765271

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20284183U Granted JPS60106260U (en) 1983-12-24 1983-12-24 magnetic disk drive

Country Status (1)

Country Link
JP (1) JPS60106260U (en)

Also Published As

Publication number Publication date
JPS60106260U (en) 1985-07-19

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