JPS615480A - Magnetic recorder - Google Patents
Magnetic recorderInfo
- Publication number
- JPS615480A JPS615480A JP12584684A JP12584684A JPS615480A JP S615480 A JPS615480 A JP S615480A JP 12584684 A JP12584684 A JP 12584684A JP 12584684 A JP12584684 A JP 12584684A JP S615480 A JPS615480 A JP S615480A
- Authority
- JP
- Japan
- Prior art keywords
- rack
- carriage
- steel ball
- ball
- pinion
- 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.)
- Pending
Links
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
- G11B5/54—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 into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
Abstract
Description
【発明の詳細な説明】
〔技術分野〕
本発明は磁気記録装置の磁気ヘッドの位置決め及び駆動
装置に使用されるラック・ビニオン部に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a rack and binion unit used in a magnetic head positioning and driving device of a magnetic recording device.
従来の磁気記録装置の磁気ヘッド位置決め及び駆動装置
のラック・ビニオン部においては、第４〜６図に示すよ
うにキャリッジ１２がローラ１０により予圧をかけられ
キャリッジ１２上に固着しであるラック９がビニオン８
に押しつけられる。In the rack/binion section of the magnetic head positioning and driving device of a conventional magnetic recording device, as shown in FIGS. Binion 8
be forced to.
しかしこれは、取り付は時に第６図のようにラック９が
ビニオン８に対して、ガイド軸１１まわりに傾いている
時や、第５図のようにラック９とビニオン８の歯の平行
度がずれているとき、歯の片当りが生じる。また、精密
に取り付けたとしてもラック・ビニオンの歯が摩耗する
とキャリッジ１２及びラック９がガイドｉＬ；ｎ＋１１
まわりに回転してゆき、一部分の摩耗が進んでゆく。こ
のため、精密な取り付けを必要とし、また歯の片減りが
進み位置精度の維持が難しくなるという問題点があった
。However, this may be difficult to install when the rack 9 is tilted around the guide shaft 11 with respect to the pinion 8 as shown in Figure 6, or when the teeth of the rack 9 and the pinion 8 are not parallel to each other as shown in Figure 5. When the teeth are misaligned, uneven contact of the teeth occurs. In addition, even if the teeth of the rack/binion are worn out even if the rack/binion is installed precisely, the carriage 12 and the rack 9 will become the guide iL;n+11.
As it rotates, some parts of it start to wear out. For this reason, there is a problem in that precise attachment is required, and the teeth tend to wear out unevenly, making it difficult to maintain positional accuracy.
本発明は、このような問題点を解決するものでその目的
とするところは、ラック・ビニオンにおいて精密な取り
付けをすることなしに、位置精度を向上させ、また耐摩
耗性を向上しそれＫともなつて耐久後のイ装置精度を維
持する、位置決め駆動構造を提供することにある。The present invention solves these problems and aims to improve positional accuracy and wear resistance without requiring precise mounting of racks and binions. The object of the present invention is to provide a positioning drive structure that maintains device accuracy after durability.
本発明の磁気記録装置は、−個または複数個の磁気ヘッ
ドが―着されたキャリッジを駆動するラック・ビニオン
アクチュエータにおいて、ラックをキャリッジより鋼球
と玉受は部及び鋼球と平板の２点により支持することに
より、鋼球と玉受は部を中心に２方向へのラックの回転
を可能とした。In the magnetic recording device of the present invention, in a rack/binion actuator that drives a carriage on which one or more magnetic heads are attached, the rack is moved from the carriage to two parts, one between a steel ball and a ball bearing, and the other between a steel ball and a flat plate. By supporting the rack at a point, the steel balls and ball bearings made it possible to rotate the rack in two directions around the center.
ことを特徴とする。It is characterized by
以下、本発明について実施例に基づき詳細に説明する。 Hereinafter, the present invention will be described in detail based on examples.
第１〜３図は本発明の一実施例を示す。1 to 3 show an embodiment of the present invention.
図においてキャリッジ５には円錐形の玉受は用の穴３ｈ
があけられ、それによりラック２に接着された硬球４が
キャリッジ５からはずれないようにし、さらに、硬球４
を中心とする回転運動をラック２に可能とさせる。この
円錐形の穴の角度は、硬球が円面面を滑らないように設
定しなければならない。さらにラック２にもう一個の鋼
球５を接着し、それはキャリッジ部のビニオ゛ン側平面
に接する。In the figure, the carriage 5 has a hole 3h for a conical ball holder.
is opened, thereby preventing the hard balls 4 glued to the rack 2 from coming off the carriage 5, and furthermore, the hard balls 4 are
This allows the rack 2 to rotate around the center. The angle of this conical hole must be set so that the hard ball does not slide on the circular surface. Furthermore, another steel ball 5 is glued to the rack 2, and it touches the plane of the carriage part on the vinyl-on side.
このような２点支持により、キャリッジの玉受は部５・
ｈに支持された鋼４球４を中心とし、鋼球５がギヤ°リ
ッジ部のピニオン側平面上を移動するようなキャリッジ
面に平行な面内での回転運動、及び鋼球４と鋼球５を結
んだ線を軸とする回転運動をラックに可能とさせる。With this kind of two-point support, the ball holder of the carriage is positioned at part 5.
Rotational motion in a plane parallel to the carriage surface such that the steel ball 5 moves on the pinion side plane of the gear ridge part, centering on the steel ball 4 supported by the steel ball 4, and the steel ball 4 and the steel ball. The rack is made to be able to rotate around the line connecting the numbers 5 and 5.
第３図において、ラック２がピニオン１に対して、ガイ
ド軸７まわりに傾いている時や、ラック・ピニオンの歯
が摩耗しキャリッジ３がガイド軸７まわりに回転しても
、硬球４と硬＄５を結んだ線を軸としてラック２が回転
し、ラック２とピニオン１が均等に接するように調節さ
れる。In Fig. 3, when the rack 2 is tilted around the guide shaft 7 with respect to the pinion 1, or even if the teeth of the rack and pinion are worn and the carriage 3 rotates around the guide shaft 7, the hard balls 4 and The rack 2 rotates about the line connecting $5, and is adjusted so that the rack 2 and pinion 1 are evenly in contact with each other.
また第２図において、ラック２の歯とピニオン１の歯の
平行度がずれているときも、ラック２が硬玉４を中心に
キャリッジのピニオン側の面に平 ６行な面内を
回転することＫより、ラック２とピニオン１が均等に接
するように調節される。Also, in Fig. 2, even when the parallelism of the teeth of rack 2 and pinion 1 is misaligned, rack 2 rotates around jade ball 4 in a plane parallel to the pinion side surface of the carriage. K is adjusted so that the rack 2 and pinion 1 are in even contact with each other.
この機構は、ラック・ピニオンを使用した精密位ｆＩχ
決め駆動機構すべてに応用できる。This mechanism uses a rack and pinion for precise position fIχ
Applicable to all decision drive mechanisms.
以上のように本発明によれば、鋼球を使用したラックの
キャリッジからの２点支持により、ラックの２方向への
回転が可能となり、精密に取り付でけなくとも歯が均等
に接触するため、摩耗が一様でかつ少なく、位置精度が
常に保ちやすいという効果が得られる。As described above, according to the present invention, by supporting the rack at two points from the carriage using steel balls, the rack can be rotated in two directions, and the teeth can be evenly contacted even if the rack is not mounted precisely. Therefore, it is possible to obtain the effect that wear is uniform and small, and positional accuracy is easily maintained at all times.
ｆＸＳ１〜５図は本発明の一実施例に用いられるガイド
シャフトについたキャリッジとラック・ピニオンを使用
した位置決め及び駆動装置を示す図、第４〜６図は従来
の位置決め及び駆動装置の一例を示す図である。
１・・・・・・・・・ピニオン
２・・・・・・・・・ラック
３・・・・・・・・・キャリッジ
３・ｈ・・・キャリッジにあけた玉受は穴４と５・・・
鋼 球
６・・・・・・・・・ローラ
７・・・・・・・・・ガイド軸
８・・・・・・・・・ピニオン
９・・・・・・・・・ラック
１０・・・・・・ローラ
１１・・・・・・ガイド軸
１２・・・・・・キャリッジ
以 上fXS1 to 5 are diagrams showing a positioning and driving device using a carriage attached to a guide shaft and a rack and pinion used in an embodiment of the present invention, and FIGS. 4 to 6 are diagrams showing an example of a conventional positioning and driving device. It is a diagram. 1...Pinion 2...Rack 3...Carriage 3.h...The ball holders drilled in the carriage are holes 4 and 5. ...
Steel Ball 6...Roller 7...Guide shaft 8...Pinion 9...Rack 10... ...Roller 11 ...Guide shaft 12 ...Carriage or more
Claims (1)
ッジをガイドに沿ってディスク円周と直角方向に駆動す
るラック・ピニオンアクチュエータにおいて、ラックを
キャリッジより鋼球と玉受け部及び銅球と平面の２点に
より支持することを特徴とする磁気記録装置。In a rack and pinion actuator that drives a carriage to which one or more magnetic heads are fixed along a guide in a direction perpendicular to the disk circumference, the rack is moved from the carriage to a steel ball, a ball receiver, a copper ball and a flat surface. A magnetic recording device characterized by being supported by two points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12584684A JPS615480A (en) | 1984-06-19 | 1984-06-19 | Magnetic recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12584684A JPS615480A (en) | 1984-06-19 | 1984-06-19 | Magnetic recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS615480A true JPS615480A (en) | 1986-01-11 |
Family
ID=14920385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12584684A Pending JPS615480A (en) | 1984-06-19 | 1984-06-19 | Magnetic recorder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS615480A (en) |
-
1984
- 1984-06-19 JP JP12584684A patent/JPS615480A/en active Pending
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