JPS62134870A - Magnetic head feeding mechanism - Google Patents

Magnetic head feeding mechanism

Info

Publication number
JPS62134870A
JPS62134870A JP27460485A JP27460485A JPS62134870A JP S62134870 A JPS62134870 A JP S62134870A JP 27460485 A JP27460485 A JP 27460485A JP 27460485 A JP27460485 A JP 27460485A JP S62134870 A JPS62134870 A JP S62134870A
Authority
JP
Japan
Prior art keywords
carriage
sliding member
magnetic head
guide
feeding mechanism
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
Application number
JP27460485A
Other languages
Japanese (ja)
Inventor
Hitoshi Ishida
均 石田
Hiroshi Kanai
金井 博志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP27460485A priority Critical patent/JPS62134870A/en
Publication of JPS62134870A publication Critical patent/JPS62134870A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To prevent a carriage and a guide shaft from having a play during track seeking operation by interposing an elastic member which spreads and energizes a shift sliding member and the carriage in direction crossing the axial directions of two guide shafts detachably between the shaft sliding member and carriage. CONSTITUTION:When respective tracks on a magnetic disk are sought for radially by a magnetic head feeding mechanism, the carriage 2 on which a magnetic head 1 is mounted is moved forth and back along two parallel guide shafts 6 and 7 and the shaft sliding member 9 fitted onto the guide shaft 7 moves forth and back at this time together with the carriage 2 while fitted in a sliding member engagement recessed part 10 formed in an end part of the carriage 2, which is guided along the guide shaft 7. The elastic member 11 which spreads and energizes the shaft sliding member 9 and carriage 2 in the direction orthogonal to the axial directions of the guide shafts 6 and 7 is positioned in the sliding member engagement recessed part 10 and interposed between the shaft sliding member 9 and carriage 2, thereby preventing the guide shafts 6 and 7 from having a play on the basis of the carriage 2.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は磁気ヘッド送り機構、さらに詳細には。[Detailed description of the invention] [Field of application of the invention] The present invention relates to a magnetic head feeding mechanism, and more particularly, to a magnetic head feeding mechanism.

磁気ヘッドを搭載したキャリッジと、上記キャリッジに
磁気ディスク半径方向の各トラックをシークさせる2本
の平行なガイドシャフトとを備えた磁気ヘッド送り機構
の改良に関するものである。
The present invention relates to an improvement in a magnetic head feeding mechanism that includes a carriage on which a magnetic head is mounted, and two parallel guide shafts that cause the carriage to seek each track in the radial direction of a magnetic disk.

〔発明の背景〕[Background of the invention]

磁気ヘッドを搭載したキャリッジと、上記キャリッジに
磁気ディスク半径方向の各トラックをシ−りさせる2本
の平行なガイドシャフトとを備えた磁気ヘッド送り機構
は、たとえば実開昭59−125763号公報1%開昭
60−136966号公報、さらには特開昭60−13
6967号公報などに示されている。
A magnetic head feeding mechanism comprising a carriage on which a magnetic head is mounted and two parallel guide shafts that allow the carriage to align each track in the radial direction of a magnetic disk is disclosed in, for example, Japanese Utility Model Application Publication No. 59-125763 1. % Publication No. 1988-136966, and furthermore, Japanese Patent Publication No. 60-13
This is shown in Publication No. 6967, etc.

しかして、実開昭59−125763号′公報の第3図
〜第7図、また%開昭60−136966号公報の第5
図、さらにはl特開昭60−136967号公報の第5
図に示されている磁気ヘッド送り機構は、磁気ヘッドを
搭載したキャリッジの両側に位置する2本のガイドシャ
フトのうち、その一方のガイドシャフト側からキャリッ
ジに対してばね力を加え、キャリッジとガイドシャフト
とを圧接するというものであって、この構成によれ゛ば
、磁気ディスクドライブの取付姿勢を水平取付とした場
合におけるトラックシーり時、キャリッジとガイドシャ
フトとの間のがたつきを防止することができる。
Therefore, Fig. 3 to Fig. 7 of Utility Model Application Publication No. 59-125763', and Fig. 5 of Utility Model Application Publication No. 60-136966
Fig. 5 of JP-A No. 60-136967.
The magnetic head feeding mechanism shown in the figure applies a spring force to the carriage from one of the two guide shafts located on both sides of the carriage on which the magnetic head is mounted. This configuration prevents rattling between the carriage and the guide shaft during track seating when the magnetic disk drive is mounted horizontally. be able to.

しかしながら、磁気ディスクドライブの取付姿勢を垂直
取付とした場合、前掲実開昭59−125763号公報
の第3図〜第7図、特開昭60−136966号公報の
第5図、また特開昭60−136967号公報の第5図
に示されている磁気ヘッド送り機構のばね力は、キャリ
ッジの自重変移にともなって変化するため、トラックシ
ーク時。
However, when the magnetic disk drive is installed in a vertical mounting position, FIGS. The spring force of the magnetic head feeding mechanism shown in FIG. 5 of Japanese Patent No. 60-136967 changes as the weight of the carriage changes, and therefore, during track seeking.

キャリッジとガイドシャフトとの間にがたつきを生じ易
くなるおそれかりる。
There is a risk that rattling may easily occur between the carriage and the guide shaft.

一方、特開昭60−136966号公報の第4図および
特開昭60−13696.7号公報の$J4図に示され
ている磁気ヘッド送り機構は、磁気ヘッドfc搭載した
キャリッジを基準に、当該キャリッジの両側に位置する
2本のガイドシャフトに対して互いに反対方向のばね力
を加え、上記2本のガイドシャフトとキャリッジとを常
に圧接するというのいずれとした場合であっても、トラ
ックシーク時、キャリッジとガイドシャフトとの間のが
たつきを防止することができる。
On the other hand, the magnetic head feeding mechanism shown in FIG. 4 of JP-A No. 60-136966 and FIG. Track seeking is possible even if spring forces are applied in opposite directions to the two guide shafts located on both sides of the carriage so that the two guide shafts and the carriage are always in pressure contact. At this time, rattling between the carriage and the guide shaft can be prevented.

しかして、前掲特開昭60−136966号公報の第4
図および特開昭60−136967号公報の第4図に示
されている磁気ヘッド送り機構にあっては1両公報に符
号12で示されているすべり軸受体と符号13で示され
ているばね体とを一体に結合し、さらに上記ばね体13
を1両公報に符号7で示されているヘッド支持本体(キ
ャリッジ)(キャリッジ)7に対するばね体13のねじ
止め作業が省略されれば、磁気ヘッド送り機構の製作作
業性は改善される。
However, in the above-mentioned Japanese Patent Application Laid-open No. 60-136966,
In the magnetic head feeding mechanism shown in Fig. 4 of JP-A No. 60-136967, there is a sliding bearing body shown with reference numeral 12 and a spring shown with reference numeral 13 in the first publication. The spring body 13 is integrally connected to the spring body 13.
If the work of screwing the spring body 13 to the head support body (carriage) 7, which is indicated by the reference numeral 7 in the first publication, can be omitted, the manufacturing workability of the magnetic head feeding mechanism will be improved.

〔発明の目的〕[Purpose of the invention]

本発明は、従来型磁気ヘッド送り機構をさらに改善すべ
く1種々検討を重ねた結果なされ友もの付のいずれとし
た場合であっても、トラックシーク時、キャリッジとガ
イドシャフトとの間のがたつきを防止し、しかも従来型
磁気ヘッド送り機構に比較して製作作業性にすぐれた。
The present invention was developed as a result of various studies to further improve the conventional magnetic head feeding mechanism. It prevents sticking and is also easier to manufacture than conventional magnetic head feeding mechanisms.

改良された磁気ヘッド送り機構を提供しようとするもの
である。
It is an object of the present invention to provide an improved magnetic head feeding mechanism.

〔発明の概要〕[Summary of the invention]

上記目的を達成するため1本発明は、磁気ヘッドを搭載
したキャリッジと、上記キャリッジに磁気ディスク半径
方向の各トラックをシークさせる2本の平行なガイドシ
ャフトとを備える磁気ヘッド送り機構において、上記2
本のガイドシャフトの一方を12、キャリッジの一側に
設けた貫通穴内に挿通し、上記2本のガイドシャフトの
他方を、キャリッジの他側に突設したキャリッジガイド
部に当接せしめ、かつ上記キャリッジガイド部に近接し
て、当該キャリッジガイド部を支持するガイドシャフト
に、短尺筒体状のシャフト摺動部材を嵌合するとともに
、上記キャリッジガイド部に近接して、キャリッジの端
部に、上記シャフト摺動部材を嵌合係止する摺動部材係
合凹部を形成し、この凹部内に位置して、シャフト摺動
部材とキャリッジとの間に、上記2本のガイドシャフト
の軸方向と直交する方向に拡開付勢する弾性部材を着脱
自在に介装してなることを特徴とするものである。
In order to achieve the above object, the present invention provides a magnetic head feeding mechanism comprising a carriage on which a magnetic head is mounted and two parallel guide shafts that cause the carriage to seek each track in the radial direction of a magnetic disk.
One of the book guide shafts 12 is inserted into a through hole provided on one side of the carriage, the other of the two guide shafts is brought into contact with a carriage guide portion protruding from the other side of the carriage, and the above-mentioned A short cylindrical shaft sliding member is fitted to a guide shaft that supports the carriage guide part in proximity to the carriage guide part, and the shaft sliding member is fitted to the end of the carriage in proximity to the carriage guide part. A sliding member engaging recess for fitting and locking the shaft sliding member is formed, and a sliding member is positioned within the recess and is perpendicular to the axial direction of the two guide shafts between the shaft sliding member and the carriage. This is characterized by a removably interposed elastic member that biases the opening in the direction of expansion.

〔発明の実施例〕[Embodiments of the invention]

以下1本発明を1図面にもとづいて説明すると。 The present invention will be explained below based on one drawing.

第1図は本発明に係る磁気ヘッド送り機構の一実施例を
示す斜視図、第2図は本発明の四部である第1図のA−
A断面図で、第1図および第2図において、1は磁気ヘ
ッド、2はキャリッジを示し。
FIG. 1 is a perspective view showing an embodiment of the magnetic head feeding mechanism according to the present invention, and FIG. 2 is a perspective view showing the fourth part of the present invention, A--
This is a sectional view of A, and in FIGS. 1 and 2, 1 indicates a magnetic head and 2 indicates a carriage.

磁気ヘッド1は、板ばね3に収り付けだヘッドアーム4
を介し、ねじ5によってキャリッジ2上に搭載されてい
る。磁気ヘッドlを搭載したキャリッジ2は、2本の平
行なガイドシャフト6および7を案内として、磁気ディ
スク半径方向の各トラックをシークするものであり、上
記2本のガイドシャフト6.7のうち、その一方のガイ
ドシャフト6は、キャリッジ2の一側に貫通した丸穴(
角穴でも可)8に挿通されている。また、ガイドシャフ
ト6.7のうち、他方のガイドシャ7ト7は、キャリッ
ジ2の他側に突設した一対のキャリッジガイド部2aに
当接されている。9はキャリッジガイド部2aに近接し
て、当該キャリッジガイド部2aを支持しているガイド
シャフト7に嵌合した短尺筒体状のシャフト摺動部材、
10はこれまたキャリッジガイド部2aに近接して、キ
ャリッジ2の端部に形成した摺動部材係合凹部で、この
凹部10内に、上記シャフト摺動部材9が嵌合係止され
ている。また、上記凹部lO内に位置して。
The magnetic head 1 is housed in a leaf spring 3. The head arm 4
It is mounted on the carriage 2 via screws 5. The carriage 2 carrying the magnetic head l seeks each track in the radial direction of the magnetic disk using two parallel guide shafts 6 and 7 as guides. Of the two guide shafts 6 and 7, One of the guide shafts 6 has a round hole (
It is inserted through hole 8 (a square hole is also acceptable). Further, the other guide shaft 7 of the guide shafts 6.7 is in contact with a pair of carriage guide portions 2a protruding from the other side of the carriage 2. Reference numeral 9 denotes a short cylindrical shaft sliding member that is close to the carriage guide section 2a and fitted into the guide shaft 7 that supports the carriage guide section 2a;
Reference numeral 10 denotes a sliding member engaging recess formed at the end of the carriage 2, also close to the carriage guide portion 2a, and the shaft sliding member 9 is fitted and locked in this recess 10. Further, it is located within the recess IO.

シャフト摺動部材9とキャリッジ2との間に、ガイドシ
ャフト6.7と直交する方向に拡開付勢する弾性部材1
1が介装されている。
An elastic member 1 is provided between the shaft sliding member 9 and the carriage 2 and is biased to expand in a direction perpendicular to the guide shaft 6.7.
1 is interposed.

本発明は以上のごとき構成よりなり1本発明に係る磁気
ヘッド送り機構により磁気ディスク半径方向の各トラッ
クをシークするには、従来と同様、2本の平行なガイド
シャフト6.7に沿って、磁気ヘッド1を搭載したキャ
リッジ2を進退勤作せしめるものであり、このとき、ガ
イドシャフト7に嵌合したシャフト摺動部材9は、キャ
リッジ2の端部に形成した摺動部材係合凹部10内に嵌
合係止された状態でキャリッジ2と共に進退勤作し。
The present invention has the above-mentioned configuration. 1. In order to seek each track in the radial direction of the magnetic disk by the magnetic head feeding mechanism according to the present invention, as in the conventional case, along the two parallel guide shafts 6.7, The carriage 2 carrying the magnetic head 1 is moved forward and backward, and at this time, the shaft sliding member 9 fitted into the guide shaft 7 is inserted into the sliding member engaging recess 10 formed at the end of the carriage 2. It moves forward and backward together with the carriage 2 while being fitted and locked.

キャリッジ2をガイドシャフト7に沿って案内する。し
かして1本発明においては、上記摺動部材係合凹部lO
内に位置して、シャフト摺動部材9とキャリッジ2との
間に、ガイドシャ7)6.7の軸方向と直交する方向に
拡開付勢する弾性部材11が介装されており、ギヤリッ
ジ2を基準にして、当該キャリッジ20両側に位置する
2本のガイドシャフト6.7には、第2図に符号fで示
すように、互いに反対方向のばね力が加えられているか
ら、ガイドシャフト6.7とキャリッジ2とは常に圧接
されるものであって、上記構成によれば、磁気ディスク
ドライブの取付姿勢を水平取付あるいは垂直取付のいず
れとした場合でめっても。
The carriage 2 is guided along a guide shaft 7. Therefore, in one aspect of the present invention, the sliding member engaging recess lO
An elastic member 11 is interposed between the shaft sliding member 9 and the carriage 2 and urges the guide shaft 7) to expand in a direction perpendicular to the axial direction of the gear ridge. 2, spring forces in opposite directions are applied to the two guide shafts 6.7 located on both sides of the carriage 20, as shown by the symbol f in FIG. 6.7 and the carriage 2 are always in pressure contact with each other, and according to the above configuration, even if the magnetic disk drive is installed in either a horizontal or vertical mounting position, it is unlikely that the magnetic disk drive will be mounted horizontally or vertically.

トラックシーク時、ガイドシャフト6.7とキャリッジ
2との間のがたつきを防止することができる。
During track seeking, rattling between the guide shaft 6.7 and the carriage 2 can be prevented.

なお、ガイドシャフト7に沿ってキャリッジ2を案内す
るシャフト摺動部材9は、既述のごとく。
Note that the shaft sliding member 9 that guides the carriage 2 along the guide shaft 7 is as described above.

弾性部材11によ抄ガイドシャフト7に押し付けられた
状態でキャリッジ2を案内するので、シャフト摺動部材
9を自己潤滑性の軸受、すなわちフッ素、二硫化モリブ
デンなどを含む熱可塑性合成樹脂軸受、あるいは青銅系
の焼結含油軸受などで(Q) 構成すれば、トラックシーク時におけるシャフト摺動部
材9の耐摩耗性は向上する。
Since the carriage 2 is guided while being pressed against the paper guide shaft 7 by the elastic member 11, the shaft sliding member 9 is mounted on a self-lubricating bearing, that is, a thermoplastic synthetic resin bearing containing fluorine, molybdenum disulfide, etc. If (Q) is constructed using a bronze-based sintered oil-impregnated bearing, etc., the wear resistance of the shaft sliding member 9 during track seeking will be improved.

第3図は磁気ディスクドライブの取付姿勢が異なる場合
、すなわち磁気ディスクドライブの取付姿勢に水平取付
を採用する場合と垂直取付を採用する場合との取付姿勢
差による磁気ヘッドの位置ずれを説明する図で、第3図
において、符号りは磁気ディスク、几は磁気ディスクD
のトラック半径方向の距離、laは磁気ディスクドライ
ブの取付姿勢を水平取付とした場合におけるリード/ラ
イト(几/W)コアのボジショ/、C1はポジションl
aに位置するR/Wコアの中心線、lbは磁気ディスク
ドライブの取付姿勢を垂直取付とした場合における几/
Wコアのポジション、Czはポジションlbに位置する
几/Wコアの中心線。
FIG. 3 is a diagram illustrating the positional deviation of the magnetic head due to the difference in the mounting posture when the magnetic disk drive is mounted in different mounting postures, that is, when the magnetic disk drive is mounted horizontally and when it is vertically mounted. In Fig. 3, the symbol is the magnetic disk, and the symbol is the magnetic disk D.
The distance in the track radial direction, la is the position of the read/write (几/W) core when the magnetic disk drive is installed horizontally, and C1 is the position l.
The center line of the R/W core located at a, lb is the vertical axis when the magnetic disk drive is installed vertically.
The position of the W core, Cz is the center line of the 几/W core located at position lb.

θはポジションlaに位置するR/Wコアの中心線CI
とボジシ]ンlbに位置するR/Wコアの中心線CZ 
との傾き角度、ΔSはポジションlaに位置するR/W
コアとポジション1bに位置する几/Wコアとの位置ず
れにもとづく偏倚量を示しており1本発明によれば、磁
気ディスクドライブの取付姿勢を水平取付あるいは垂直
取付のいずれとした場合で必っても、トランクシーク時
、上記傾き角匿θを小さくして、−f:の両者間の位置
ずれにもとづく偏倚量ΔSを小さな値に抑えることがで
きる。
θ is the center line CI of the R/W core located at position la
Center line CZ of the R/W core located at body lb
The inclination angle, ΔS, is the R/W located at position la.
It shows the amount of deviation based on the positional deviation between the core and the 几/W core located at position 1b. However, at the time of trunk seek, by reducing the above-mentioned tilt angle θ, it is possible to suppress the deviation amount ΔS based on the positional deviation between -f: to a small value.

第4図(a)は本発明に係る送り機構を採用した磁気ヘ
ッド主要部(ヘッドアームならびにキャリッジンのトラ
ンクシーク時における振動波形およびセトリング出力波
形特性線図、第4図(b)は従来型磁気ヘッド主要部(
ヘットアームならびにキャリッジ]のトラック/−り時
における振動波形およびセトリング出力波形特性線図で
、第4図(a)および第4図(b)において、符号Wは
へラドアームに発生するトランクシーク方向と垂直方向
の振動波形、Xはキャリッジに発生するトラックシータ
方向の振動波形、Yはセトリング出力波形、実は波形振
動時間を示しており、第4図(a)と第4図(b)との
比較から、第4図(a)に示すセトリング出力波形の振
動時間は、第4図(b)のそれと比較して約1/2に短
縮しており2本発明を採用することによゆ、トランクシ
ークの高速化を達成できることが判る。
Fig. 4(a) shows the vibration waveform and settling output waveform characteristics diagram of the main part of the magnetic head (head arm and carriage during trunk seek) employing the feeding mechanism according to the present invention, and Fig. 4(b) shows the characteristic diagram of the conventional magnetic head. Main part of magnetic head (
4(a) and 4(b), the symbol W is perpendicular to the trunk seek direction generated in the head arm and carriage. The vibration waveform in the direction, X is the vibration waveform generated in the carriage in the track theta direction, and Y is the settling output waveform.Actually, it shows the waveform vibration time, and from the comparison between Fig. 4(a) and Fig. 4(b). , the oscillation time of the settling output waveform shown in FIG. 4(a) is shortened to about 1/2 compared to that of FIG. 4(b).2 By adopting the present invention, the trunk seek It can be seen that it is possible to achieve faster speeds.

第5図は本発明に係る送り機構を採用した磁気ヘッド主
要部(キャリッジ)のトラックシーク時における騒音波
形(Zl)を、従来凰磁気ヘッドの騒音波形(Z2)と
比較して示す騒音波形特性線図で、第5図において、た
とえば、磁気ディスクの半径方向にキャリッジを6エロ
Sの速さでトラックシークさせた場合の騒音は、同図か
ら明らかなように、従来に比べて本発明の方が10dB
(55dB−45dB)低減していることが判る。
FIG. 5 shows the noise waveform characteristics of the noise waveform (Zl) during track seeking of the main part (carriage) of the magnetic head employing the feeding mechanism according to the present invention in comparison with the noise waveform (Z2) of the conventional magnetic head. In FIG. 5, for example, when the carriage is track-seeked in the radial direction of the magnetic disk at a speed of 6 eros, the noise produced by the present invention is greater than that of the conventional one, as is clear from the figure. 10dB
(55dB-45dB).

これに加えて1本発明においては、第1図および第2図
に符号9で示すシャフト摺動部材と符号11で示す弾性
部材とが機械的に一体結合されておらず、その両者は、
キャリッジ2の端部に形成した摺動部材係合凹部10内
に位置して、単に看脱自在に保止されているだけであり
1弾性部材11とキャリッジ2とのねじ止め固定も不要
であるから、磁気ヘッド送り機構の製作作業を従来に比
べて容易におこなうことができる。
In addition to this, in the present invention, the shaft sliding member indicated by the reference numeral 9 in FIGS. 1 and 2 and the elastic member indicated by the reference numeral 11 are not mechanically integrally connected;
It is located in the sliding member engagement recess 10 formed at the end of the carriage 2 and is simply held in a removable manner, so there is no need to fix the elastic member 11 and the carriage 2 with screws. Therefore, the manufacturing work of the magnetic head feeding mechanism can be performed more easily than in the past.

〔発明の効果〕〔Effect of the invention〕

本発明は以上のごときであゆ1図示実施例の説明からも
明らかなように1本発明によれば、磁気クシーク時、キ
ャリッジとガイドシャフトとの間のがたつきを防止し、
しかも従来型磁気ヘッド送り機構に比較して製作作業性
にすぐれた。改良された磁気ヘッド送り機構を得ること
ができる。
As is clear from the description of the illustrated embodiment, according to the present invention, rattling between the carriage and the guide shaft is prevented during magnetic seek,
Moreover, it has superior manufacturing workability compared to conventional magnetic head feeding mechanisms. An improved magnetic head transport mechanism can be obtained.

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

第1図は本発明に係る磁気ヘッド送ゆ機構の一実施例を
示す斜視図、第2図は本発明の要部である第1図のA−
A断面図、第3図は磁気ディスクドライブの取付姿勢が
異なる場合、すなわち磁気ディスクドライブの取付姿勢
に水平取付を採用する場合と垂直取付を採用する場合と
の取付姿勢差による磁気ヘッドの位置ずれを説明する図
、第4図(a)は本発明に係る送り機構を採用した磁気
ヘッド主要部(ヘッドアームならびにキャリッジ)のト
ラックシーク時における振動波形および化トリ/グ出力
波形特性線図、第4図中)は従来型磁気ヘッド主要部(
ヘッドアームならびにキャリッジ)のトラックシーク時
における振動波形および七トリング出力波形特性線図、
第5図は本発明に係る送り機構を採用した磁気ヘッド主
要部(キャリッジ)のトラックシーク時における騒音波
形を、従来型磁気ヘッドの騒音波形と比較して示す騒音
波形特性線図である。 l・・・磁気ヘッド、2・・・千ヤリツジ 2a・・・
キャリッジガイド部、4・・・ヘッドアーム、6,7・
・・ガイドシャフト、8・・・丸穴、9・・・シャツ)
!動部材。
FIG. 1 is a perspective view showing an embodiment of the magnetic head feeding mechanism according to the present invention, and FIG.
A sectional view and Figure 3 show the positional deviation of the magnetic head due to the difference in the mounting orientation when the magnetic disk drive is installed in different orientations, that is, when the magnetic disk drive is installed horizontally and when it is installed vertically. FIG. 4(a) is a diagram illustrating vibration waveforms and trig output waveform characteristic diagrams during track seeking of the main parts of the magnetic head (head arm and carriage) employing the feeding mechanism according to the present invention. 4 in Figure 4) is the main part of the conventional magnetic head (
Head arm and carriage) vibration waveform and seven-tring output waveform characteristic diagram during track seeking,
FIG. 5 is a noise waveform characteristic diagram showing the noise waveform during track seeking of the main part (carriage) of the magnetic head employing the feeding mechanism according to the present invention in comparison with the noise waveform of a conventional magnetic head. l...magnetic head, 2...senyaritsuji 2a...
Carriage guide section, 4... Head arm, 6, 7.
・・Guide shaft, 8・Round hole, 9・Shirt)
! moving parts.

Claims (1)

【特許請求の範囲】 1、磁気ヘッドを搭載したキャリッジと、上記キャリッ
ジに磁気ディスク半径方向の各トラックをシークさせる
2本の平行なガイドシャフトとを備える磁気ヘッド送り
機構において、上記2本のガイドシャフトの一方を、キ
ャリッジの一側に設けた貫通穴内に挿通し、上記2本の
ガイドシャフトの他方を、キャリッジの他側に突設した
キャリッジガイド部に当接せしめ、かつ上記キャリッジ
ガイド部に近接して、当該キャリッジガイド部を支持す
るガイドシャフトに、短尺筒体状のシャフト摺動部材を
嵌合するとともに、上記キャリッジガイド部に近接して
、キャリッジの端部に、上記シャフト摺動部材を嵌合係
止する摺動部材係合凹部を形成し、この凹部内に位置し
て、シャフト摺動部材とキャリッジとの間に、上記2本
のガイドシャフトの軸方向と直交する方向に拡開付勢す
る弾性部材を着脱自在に介装してなることを特徴とする
磁気ヘッド送り機構。 2、特許請求の範囲第1項記載の発明において、2本の
ガイドシャフトの一方を嵌挿する短尺筒体状のシャフト
摺動部材が、自己潤滑性の熱可塑性合成樹脂軸受で構成
されている磁気ヘッド送り機構。 3、特許請求の範囲第1項記載の発明において、2本の
ガイドシャフトの一方を嵌挿する短尺筒体状のシャフト
摺動部材が、自己潤滑性の焼結含油軸受で構成されてい
る磁気ヘッド送り機構。
[Scope of Claims] 1. A magnetic head feeding mechanism comprising a carriage on which a magnetic head is mounted and two parallel guide shafts that cause the carriage to seek each track in the radial direction of the magnetic disk. One of the shafts is inserted into a through hole provided on one side of the carriage, and the other of the two guide shafts is brought into contact with a carriage guide part protruding from the other side of the carriage, and the other of the two guide shafts is brought into contact with a carriage guide part protruding from the other side of the carriage. A short cylindrical shaft sliding member is fitted into a guide shaft that supports the carriage guide part in close proximity to the carriage guide part, and the shaft sliding member is fitted to an end of the carriage in proximity to the carriage guide part. A sliding member engaging recess is formed to fit and lock the shaft, and a sliding member is positioned within the recess and extends in a direction perpendicular to the axial direction of the two guide shafts between the shaft sliding member and the carriage. A magnetic head feeding mechanism characterized by detachably interposing an elastic member that biases the head open. 2. In the invention described in claim 1, the short cylindrical shaft sliding member into which one of the two guide shafts is inserted is made of a self-lubricating thermoplastic synthetic resin bearing. Magnetic head feeding mechanism. 3. In the invention set forth in claim 1, the short cylindrical shaft sliding member into which one of the two guide shafts is fitted is a magnetic magnetic bearing made of a self-lubricating sintered oil-impregnated bearing. Head feeding mechanism.
JP27460485A 1985-12-06 1985-12-06 Magnetic head feeding mechanism Pending JPS62134870A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27460485A JPS62134870A (en) 1985-12-06 1985-12-06 Magnetic head feeding mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27460485A JPS62134870A (en) 1985-12-06 1985-12-06 Magnetic head feeding mechanism

Publications (1)

Publication Number Publication Date
JPS62134870A true JPS62134870A (en) 1987-06-17

Family

ID=17544044

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27460485A Pending JPS62134870A (en) 1985-12-06 1985-12-06 Magnetic head feeding mechanism

Country Status (1)

Country Link
JP (1) JPS62134870A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH033171A (en) * 1989-05-30 1991-01-09 Hitachi Ltd Magnetic disk driver
JP2007033591A (en) * 2005-07-25 2007-02-08 Cosina Co Ltd Lens shift mechanism for projector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH033171A (en) * 1989-05-30 1991-01-09 Hitachi Ltd Magnetic disk driver
JP2007033591A (en) * 2005-07-25 2007-02-08 Cosina Co Ltd Lens shift mechanism for projector

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