JPS647497Y2 - - Google Patents
Info
- Publication number
- JPS647497Y2 JPS647497Y2 JP1982081473U JP8147382U JPS647497Y2 JP S647497 Y2 JPS647497 Y2 JP S647497Y2 JP 1982081473 U JP1982081473 U JP 1982081473U JP 8147382 U JP8147382 U JP 8147382U JP S647497 Y2 JPS647497 Y2 JP S647497Y2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- carrier
- guide shaft
- feeding
- disk
- 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
- 238000003825 pressing Methods 0.000 claims description 3
- 229920003002 synthetic resin Polymers 0.000 description 7
- 239000000057 synthetic resin Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000012778 molding material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
Landscapes
- Moving Of Heads (AREA)
Description
【考案の詳細な説明】
本考案はフレキシブル性磁気デイスクの駆動装
置(フロツピーデイスク装置)等に於ける変換器
即ちヘツドの送り装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a transducer or head feeding device in a flexible magnetic disk drive device (floppy disk device) or the like.
フロツピーデイスク装置に於いては、デイスク
の半径方向に記録又は再生用のヘツドを正確に送
らなければならない。このため、ヘツドはキヤリ
ツジ(運搬台)に装着され、運搬台は円柱状の案
内軸にガイドされ、ステツピングモータと運搬台
とが例えばα巻スチールベルト又はループスチー
ルベルト等で結合され、ステツピングモータの駆
動に追従して運搬台がデイスク半径方向に移動す
るように構成されている。 In a floppy disk device, the recording or reproducing head must be accurately moved in the radial direction of the disk. For this purpose, the head is attached to a carriage (transport stand), the carriage is guided by a cylindrical guide shaft, and the stepping motor and the carriage are connected by, for example, an α-wound steel belt or a loop steel belt, and the stepping motor is The carriage is configured to move in the radial direction of the disk following the drive of the motor.
ところで、運搬台の貫通孔と案内軸とのクリア
ランスが多いとヘツドのアジマス、インデツクス
タイミング、トラツク位置精度が悪くなり、一
方、クリアランスが小さいと、送り用ステツピン
グモータの負荷が大きくなり、ステツピングモー
タの角度精度が保証できなくなる。このため、貫
通孔と案内軸との関係は極めて重要である。とこ
ろが、運搬台を軽量化するために、これを合成樹
脂で形成すると、案内軸挿入用の貫通孔を真円に
形成することが困難であつた。即ち貫通孔に対応
する成形用の型を真円に形成して射出成形すると
成形材料自体の応力分布が均一でないために、型
から抜いたときに変形が生じ、貫通孔の断面形状
が楕円になつた。このため、型を予め楕円に形成
することが考えられるが、要求される真円を得る
ように型を楕円に加工することは極めて困難であ
る。また、貫通孔と案内軸との両方が円形の場合
には両者の接触面積が大きくなり、温度によつて
両者の関係が変化すると摺動特性が変化し、送り
を円滑且つ正確に行うことが困難になつた。尚、
上述の如き問題は、運搬台を合成樹脂で形成しな
い場合、及びフロツピーデイスク装置以外のデイ
スク装置に於いてもある。 By the way, if there is a large clearance between the through hole of the carrier and the guide shaft, the azimuth of the head, index timing, and track position accuracy will deteriorate. On the other hand, if the clearance is small, the load on the stepping motor for feeding will become large and the stepping motor will become unstable. The angular accuracy of the ping motor cannot be guaranteed. For this reason, the relationship between the through hole and the guide shaft is extremely important. However, when the carrier is made of synthetic resin in order to reduce its weight, it is difficult to form a perfect circular through hole for inserting the guide shaft. In other words, if a molding die corresponding to a through hole is formed into a perfect circle and then injection molded, the stress distribution of the molding material itself is not uniform, so deformation occurs when it is removed from the mold, and the cross-sectional shape of the through hole becomes an ellipse. Summer. For this reason, it is conceivable to form the mold into an ellipse in advance, but it is extremely difficult to process the mold into an ellipse so as to obtain the required perfect circle. Additionally, if both the through hole and the guide shaft are circular, the contact area between them will be large, and if the relationship between them changes due to temperature, the sliding characteristics will change, making it difficult to feed smoothly and accurately. It became difficult. still,
The above-mentioned problems also occur when the carrier is not made of synthetic resin and in disk devices other than floppy disk devices.
そこで、本考案の目的は、送りを正確及び円滑
に行うことが可能であり且つ容易に形成すること
が可能な変換器の送り装置を提供することにあ
る。 SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a transducer feeding device that allows accurate and smooth feeding and can be easily formed.
上記目的を達成するための本考案は、貫通孔を
有する変換器運搬台と、前記運搬台を前記媒体デ
イスクの半径方向に案内するように前記貫通孔に
挿入された外周面円形の案内軸と、前記運搬台を
前記案内軸に沿つて前記デイスクの半径方向に送
るための送り駆動装置とから成る記録又は再生用
変換器の送り装置において、前記貫通孔が多角形
の壁面を有するように形成されており、前記案内
軸に対して前記多角形のすべての壁面が接するよ
うに前記貫通孔の大きさが設定されており、前記
壁面を前記案内軸に圧接させるための押圧バネが
設けられていないことを特徴とする記録又は再生
用変換器の送り装置に係わるものである。 To achieve the above object, the present invention includes a transducer carrier having a through hole, a guide shaft having a circular outer circumferential surface inserted into the through hole to guide the carrier in the radial direction of the medium disk. , a feeding device for a recording or reproducing transducer, comprising a feeding drive device for feeding the carrier in the radial direction of the disk along the guide shaft, wherein the through hole is formed to have a polygonal wall surface. The size of the through hole is set so that all wall surfaces of the polygon are in contact with the guide shaft, and a pressure spring is provided for pressing the wall surface against the guide shaft. The present invention relates to a feeding device for a recording or reproducing converter, which is characterized in that it does not have a recording or reproducing converter.
本考案は次の作用効果を有する。 The present invention has the following effects.
(イ) 外周面円形の案内軸に多角形のすべての壁面
を接触させるように貫通孔を形成したので、案
内軸に対して変換器運搬台を一定方向に押圧す
るバネを設けることが不要になる。(b) Since the through-hole is formed so that all the polygonal walls are in contact with the guide shaft, which has a circular outer peripheral surface, there is no need to provide a spring to press the converter carrier in a certain direction against the guide shaft. Become.
(ロ) 押圧バネを設けないので、送り駆動装置の負
荷を軽減することができる。(b) Since no pressure spring is provided, the load on the feed drive device can be reduced.
次に、第1図〜第9図を参照して本考案の実施
例に係わるフロツピーデイスク装置の変換器送り
装置について述べる。 Next, a transducer feeding device for a floppy disk device according to an embodiment of the present invention will be described with reference to FIGS. 1 to 9.
フロツピーデイスク装置を概略的に示す第1図
に於いて、1は記録媒体デイスク、2はデイスク
1を回転するためのデイスク駆動モータ、3はデ
イスク回転台、4はクランパー、5はデイスク1
の着脱時にクランパー4を回転台3から離間させ
るためのクランパー支持アーム、6は記録再生変
換器としての磁気ヘツド、7はヘツド運搬台、8
は案内円柱軸、9は運搬台にスチールベルトで結
合された送り用ステツピングモータである。本考
案は、第1図の装置に於けるヘツド6の半径方向
の送り機構に関するものである。 In FIG. 1 schematically showing a floppy disk device, 1 is a recording medium disk, 2 is a disk drive motor for rotating the disk 1, 3 is a disk rotating table, 4 is a clamper, and 5 is a disk 1.
a clamper support arm for separating the clamper 4 from the rotary table 3 during attachment and detachment; 6 is a magnetic head as a recording/reproducing converter; 7 is a head carrier; 8
9 is a guide cylindrical shaft, and 9 is a stepping motor for feeding that is connected to the carrier with a steel belt. The present invention relates to a radial feed mechanism for the head 6 in the apparatus of FIG.
第1図の送り機構を詳しく示す第2図に於い
て、ヘツド6はポリフエニルサルフアイドから成
る合成樹脂製の運搬台7に、フロツピーデイスク
1の下面に接触するように装着されている。尚デ
イスクの上面に接触させる上面側ヘツドを支持す
るヘツドキヤリツジを運搬台7に取付けるため
に、運搬台7の第2図右端上面に取付穴10が設
けられている。 In FIG. 2, which shows in detail the feeding mechanism of FIG. 1, the head 6 is mounted on a carrier 7 made of synthetic resin made of polyphenyl sulfide so as to be in contact with the lower surface of the floppy disk 1. A mounting hole 10 is provided on the upper surface of the right end of the carrier 7 in FIG. 2 in order to attach the head carriage supporting the upper head which is brought into contact with the upper surface of the disk to the carrier 7.
運搬台7には第3図及び第4図から明らかなよ
うに断面形状四角形の貫通孔11が設けられ、こ
の貫通孔11にスチール製の一方の案内円柱軸8
が遊嵌されている。また、運搬台7に設けられた
突片12に於けるU字状溝13に他方の案内円柱
軸14が挿入されている。 As is clear from FIGS. 3 and 4, the transport platform 7 is provided with a through hole 11 having a rectangular cross section.
is loosely fitted. Further, the other guide cylindrical shaft 14 is inserted into a U-shaped groove 13 in a protrusion 12 provided on the carrier 7.
運搬台7と軸8,14とを係合させた後に軸
8,14を容易且つ正確に固定するために、アル
ミニウムダイカスト製の支持基板15に第9図に
示す如く一対の軸8,14の間隔に相当する溝1
6が設けられ、この溝16の壁に一対の軸8,1
4が位置決めされ、取付金具17で固定されてい
る。 In order to easily and accurately fix the shafts 8, 14 after the transport platform 7 and the shafts 8, 14 are engaged, the pair of shafts 8, 14 are mounted on a support substrate 15 made of aluminum die-casting as shown in FIG. Groove 1 corresponding to the interval
6 is provided, and a pair of shafts 8, 1 are provided on the wall of this groove 16.
4 is positioned and fixed with a mounting bracket 17.
軸8,14に案内されている運搬台7をモータ
9で半径方向に送るために、運搬台7の側面に係
合部18が一体に設けられ、モータ9のプーリ1
9とこの係合部18とが公知のα巻きスチールベ
ルト20によつて結合されている。 In order to send the carrier 7 guided by the shafts 8 and 14 in the radial direction by the motor 9, an engaging part 18 is integrally provided on the side surface of the carrier 7, and the pulley 1 of the motor 9
9 and this engaging portion 18 are connected by a known α-wound steel belt 20.
運搬台7は軸8を挿入するための四角形の貫通
孔11の高さ以上の厚さを有するが、この厚さ全
部に相当する合成樹脂層を有さず、第6図〜第8
図に示す如くリム21を有して主面部22を補強
するように形成され、左右両端のリム21a,2
1bに四角形の貫通孔11が設けられている。ま
た主面部22に開口23が設けられているが、こ
れに対応するようにリム21が配され、強度の低
下が防止されている。 Although the carrier 7 has a thickness equal to or greater than the height of the rectangular through hole 11 for inserting the shaft 8, it does not have a synthetic resin layer corresponding to the entire thickness, and as shown in FIGS.
As shown in the figure, it is formed to have a rim 21 to reinforce the main surface portion 22, and rims 21a, 2 at both left and right ends.
A rectangular through hole 11 is provided in 1b. Further, although an opening 23 is provided in the main surface portion 22, a rim 21 is arranged to correspond to the opening 23, and a decrease in strength is prevented.
尚、運搬台7を合成樹脂の射出成形で形成する
際の貫通孔11に対応する型は第5図に示す如く
ひし形の型24とされている。このようにひし形
の型24を使用しても、成形材料の応力分布の関
係で成形後に第4図に示す正四角形の貫通孔11
が得られる。もし、型24と貫通孔11との適正
な関係が得られない場合には、型24を修正す
る。この場合、修正面が従来の如く円又は楕円の
外周面でなく、四角形の面であるので、所望の型
を容易に得ることが可能である。 The mold corresponding to the through hole 11 when forming the transport platform 7 by injection molding of synthetic resin is a diamond-shaped mold 24 as shown in FIG. Even if the diamond-shaped mold 24 is used in this way, due to the stress distribution of the molding material, the square through-hole 11 shown in FIG.
is obtained. If a proper relationship between the mold 24 and the through hole 11 cannot be obtained, the mold 24 is corrected. In this case, since the correction surface is not a circular or elliptical outer peripheral surface as in the conventional case, but a quadrangular surface, it is possible to easily obtain a desired mold.
上述から明らかなように、本実施例には次の利
点がある。 As is clear from the above, this embodiment has the following advantages.
(a) 貫通孔11を四角形とし、この四角形の対向
する一対の頂点が垂直線上に位置し、残りの対
向する一対の頂点が水平線上に位置するように
形成し、円柱軸8が4点で貫通孔11に接触す
るようにしたので、貫通孔11に対する円柱軸
8の接触面が小さくなり、摺動特性が良くな
る。従つて、温度変化で貫通孔11が収縮して
も摺動特性の低下が少ない。(a) The through hole 11 is made into a quadrangle, and a pair of opposing vertices of this quadrangle are located on a vertical line, and the remaining pair of opposing vertices are located on a horizontal line, and the cylindrical shaft 8 is formed at four points. Since the cylindrical shaft 8 is brought into contact with the through hole 11, the contact surface of the cylindrical shaft 8 with the through hole 11 is reduced, and the sliding characteristics are improved. Therefore, even if the through hole 11 contracts due to temperature changes, the sliding characteristics will not deteriorate much.
(b) 合成樹脂で運搬台7を形成するために、応力
による変形が生じ、型と同一形状の貫通孔11
を得ることが出来なくとも、型24が四角形で
あるので、所望の形状の貫通孔11に対応する
型24を容易に形成することが出来る。(b) Since the carrier 7 is made of synthetic resin, it is deformed due to stress and the through hole 11 has the same shape as the mold.
Even if it is not possible to obtain the desired shape, since the mold 24 is square, it is possible to easily form the mold 24 corresponding to the through hole 11 of the desired shape.
(c) 運搬台7を合成樹脂で形成し、更にリム21
を有する構成としたので、運搬台7の軽量化が
可能になり、ステツピングモータ9の小型化が
可能になる。(c) The carrier 7 is made of synthetic resin, and the rim 21 is
Because of this configuration, the weight of the carrier 7 can be reduced, and the stepping motor 9 can be made smaller.
(d) 軸8,14を基板15の溝16を使用し且つ
傾斜押圧面を有する共通の金具17で固定する
ので、簡単且つ正確に取付けることが可能であ
る。(d) Since the shafts 8 and 14 are fixed using the groove 16 of the substrate 15 and a common metal fitting 17 having an inclined pressing surface, it is possible to attach them easily and accurately.
以上、本考案の実施例について述べたが、本考
案はこれに限定されるものでなく、更に変形可能
なものである。例えば、光学式ビデオデイスク装
置のヘツドの送り機構にも適用可能である。また
貫通孔11を四角以外の多角形としてもよい。 Although the embodiments of the present invention have been described above, the present invention is not limited thereto and can be further modified. For example, it can be applied to a head feeding mechanism of an optical video disc device. Further, the through hole 11 may be formed into a polygon other than a square.
第1図は本考案の実施例に係わるフロツピーデ
イスク装置を概略的に示す正面図、第2図は第1
図の装置のヘツド送り機構の平面図、第3図は第
2図の−線の一部を示す断面図、第4図は第
2図の貫通孔部分の拡大断面図、第5図は第4図
の貫通孔を得るための型を示す断面図、第6図は
第2図の運搬台の底面図、第7図は第6図の−
線の一部を示す断面図、第8図は第6図の−
線の一部を示す断面図、第9図は第2図の−
線の一部を示す断面図である。
尚図面に用いられている符号に於いて、1はデ
イスク、7は運搬台、8は案内円柱軸、11は貫
通孔である。
FIG. 1 is a front view schematically showing a floppy disk device according to an embodiment of the present invention, and FIG.
3 is a sectional view showing part of the - line in FIG. 2, FIG. 4 is an enlarged sectional view of the through hole portion in FIG. 2, and FIG. Fig. 4 is a cross-sectional view showing the mold for obtaining the through hole, Fig. 6 is a bottom view of the carrier shown in Fig. 2, and Fig. 7 is the - of Fig. 6.
A cross-sectional view showing a part of the line, Fig. 8 is a - of Fig. 6.
A cross-sectional view showing a part of the line, FIG. 9 is a - of FIG. 2.
It is a sectional view showing a part of a line. In the symbols used in the drawings, 1 is a disk, 7 is a carrier, 8 is a guide cylinder shaft, and 11 is a through hole.
Claims (1)
前記媒体デイスクの半径方向に案内するように前
記貫通孔に挿入された外周面円形の案内軸と、前
記運搬台を前記案内軸に沿つて前記デイスクの半
径方向に送るための送り駆動装置とから成る記録
又は再生用変換器の送り装置において、 前記貫通孔が多角形の壁面を有するように形成
されており、 前記案内軸に対して前記多角形のすべての壁面
が接するように前記貫通孔の大きさが設定されて
おり、 前記壁面を前記案内軸に圧接させるための押圧
バネが設けられていないことを特徴とする記録又
は再生用変換器の送り装置。[Claims for Utility Model Registration] A transducer carrier having a through hole, a guide shaft having a circular outer circumferential surface inserted into the through hole so as to guide the carrier in the radial direction of the medium disk, and the carrier A feeding device for a recording or reproducing transducer comprising a feeding drive device for feeding a base in a radial direction of the disk along the guide shaft, wherein the through hole is formed to have a polygonal wall surface. , the size of the through hole is set so that all wall surfaces of the polygon are in contact with the guide shaft, and no pressure spring is provided for pressing the wall surface against the guide shaft. A feeding device for a recording or reproducing converter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8147382U JPS58183678U (en) | 1982-05-31 | 1982-05-31 | Feeding device for recording or playback converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8147382U JPS58183678U (en) | 1982-05-31 | 1982-05-31 | Feeding device for recording or playback converter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58183678U JPS58183678U (en) | 1983-12-07 |
JPS647497Y2 true JPS647497Y2 (en) | 1989-02-28 |
Family
ID=30090576
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8147382U Granted JPS58183678U (en) | 1982-05-31 | 1982-05-31 | Feeding device for recording or playback converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58183678U (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6520312B2 (en) * | 2015-03-31 | 2019-05-29 | ブラザー工業株式会社 | Ink jet recording device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55139666A (en) * | 1979-02-05 | 1980-10-31 | Basf Ag | Scanning head sliding table device for apparatus for writing flexible recording medium reading*writing system |
-
1982
- 1982-05-31 JP JP8147382U patent/JPS58183678U/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55139666A (en) * | 1979-02-05 | 1980-10-31 | Basf Ag | Scanning head sliding table device for apparatus for writing flexible recording medium reading*writing system |
Also Published As
Publication number | Publication date |
---|---|
JPS58183678U (en) | 1983-12-07 |
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