JPS60251567A - Head leading mechanism of floppy disk unit - Google Patents
Head leading mechanism of floppy disk unitInfo
- Publication number
- JPS60251567A JPS60251567A JP10913484A JP10913484A JPS60251567A JP S60251567 A JPS60251567 A JP S60251567A JP 10913484 A JP10913484 A JP 10913484A JP 10913484 A JP10913484 A JP 10913484A JP S60251567 A JPS60251567 A JP S60251567A
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- lead screw
- screw
- gear
- fixed
- 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
Landscapes
- Moving Of Heads (AREA)
Abstract
Description
【発明の詳細な説明】
く技術分野〉
本発明は、リードスクリューを用いたフロッピーディス
ク装置（以下ＦＤ装置と略記する）のヘッド送り機構に
関するものである。DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a head feeding mechanism for a floppy disk device (hereinafter abbreviated as FD device) using a lead screw.
〈従来技術〉
従来、この種のＦＤ装置のヘッド送り機構として、第３
図に示すようなものが知られている。<Prior art> Conventionally, as a head feeding mechanism of this type of FD device, the third
The one shown in the figure is known.
磁気ヘッド１を塔載したキャリッジ２は、スライド軸３
によシ摺動可能に支持されている。一方、パルスモータ
４の先端にリードスクリュー５が固定され、その切欠ミ
ゾ部にナツトもしくはピン等を躾合して、キャリッジ２
の一部に回転−直線運動変換部材６を構成している。The carriage 2 on which the magnetic head 1 is mounted has a slide shaft 3
It is slidably supported by. On the other hand, a lead screw 5 is fixed to the tip of the pulse motor 4, and a nut or pin, etc. is screwed into the notched groove of the lead screw 5, and the carriage 2
A rotational-linear motion converting member 6 is formed in a part of the rotary-linear motion converting member 6.
このようなヘッド送シ機構は構成簡単であるが、リード
スクリュー軸とパルスモータ軸を固定するため、
■ モータ軸を延長してリードスクリュー５を一体的に
作成する、
■ ユニバーサルジョインを介してモータ軸にリードス
クリュー５を固定する、
の方法がとられ、
■は、モータ単体での輸送中、組立て中等に軸の変形を
生じ易く、またＦＤ装置の組立て作業性も悪い、
■は、モータ軸とリードスクリュー軸の軸芯を一致させ
ることが困難であり、軸芯ズレにより送り精度が劣化す
る、
等の欠点がある。Such a head feeding mechanism has a simple configuration, but in order to fix the lead screw shaft and the pulse motor shaft, ■ the lead screw 5 is made integrally by extending the motor shaft; ■ the motor is connected via a universal joint. The following method is used to fix the lead screw 5 to the shaft. (2) The shaft is easily deformed during transportation and assembly of the motor alone, and the assembly workability of the FD device is also poor. (2) The motor shaft It is difficult to align the axis of the lead screw shaft with the lead screw shaft, and the feed accuracy deteriorates due to misalignment.
〈発明の目的〉
本発明は、上記欠点である一体化モータの軸変形を防止
し、作業性を向上させるために、リードスクリューとモ
ータを個別部品として、かつギヤ結合の使用によって両
者の軸芯ズレを吸収し、送シ精度の良いヘッド送シ機構
を提供するものである。<Objective of the Invention> In order to prevent shaft deformation of the integrated motor, which is the above-mentioned drawback, and improve workability, the present invention provides a lead screw and a motor as separate parts, and uses a gear connection to align the shaft centers of both. This provides a head feeding mechanism that absorbs misalignment and has good feeding accuracy.
〈実施例〉
第１図は本発明の一実施例を示す上側面図、第２図は第
１図のＡ−Ａ’線断面図である。<Embodiment> FIG. 1 is a top side view showing an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line AA' in FIG.
乞
磁気ヘッドＩＳｋ塔載したキャリッジ２は、スライド軸
３に摺動可能に支持されている。ヘッド送シのためのリ
ードスクリュー１１は、パルスモータ４とは別の部品で
構成されたものであるが、従来と同様に、その切欠ミゾ
部に、キャリッジ２のビンあるいはナツト等からなる回
転−直線運動変換部材６を嵌合している。A carriage 2 on which a magnetic head ISk is mounted is slidably supported by a slide shaft 3. The lead screw 11 for head feeding is composed of a separate part from the pulse motor 4, but as in the conventional case, a rotating screw formed by a bottle or a nut of the carriage 2 is connected to the notched groove of the lead screw 11. A linear motion conversion member 6 is fitted.
リードスクリュー１１の両端部は、スラスト方向に摺動
可能なラジアル軸受け１２ 、１３により保持される。Both ends of the lead screw 11 are held by radial bearings 12 and 13 that are slidable in the thrust direction.
そして、ベースフレームと回転−直線運動変換部材６に
固定されたバネ１４によシ、回転−直線運動変換部材６
を介して与えられるリードスクリュー１１への附勢力（
矢印下方向）を受けるため、リードスクリュー後端部１
５と、ベースフレームに固定された雌ネジ部材１６と、
この雌ネジ部材１６にネジ嵌合される雄ネジ１７とによ
り、スラスト軸受を構成している。The spring 14 fixed to the base frame and the rotation-linear motion conversion member 6 allows the rotation-linear motion conversion member 6 to
The auxiliary force to the lead screw 11 given through (
the rear end of the lead screw 1 to receive the
5, a female screw member 16 fixed to the base frame,
The male screw 17 screwed into the female screw member 16 constitutes a thrust bearing.
平ギヤ１８はリードスクリュー後端付近に固定されたも
のであり、ベースフレームに固定されたパルスモータ４
のモータ軸１９に固定された平ギヤ２０とギヤ結合され
る。これによって、パルスモータ４の回転がギヤ２０．
１８を介してリードスクリュー１１に伝達され、回転−
直線運動変換部材６により直線運動に変換されて、ヘッ
ド送りが行なわれる。The spur gear 18 is fixed near the rear end of the lead screw, and is connected to the pulse motor 4 fixed to the base frame.
It is gear-coupled with a spur gear 20 fixed to a motor shaft 19. As a result, the rotation of the pulse motor 4 is controlled by the gear 20.
18 to the lead screw 11, and the rotation -
The linear motion converting member 6 converts the motion into a linear motion, and the head is moved.
このようなギヤ結合によシ、両軸芯のズレを吸収し、ズ
レによる送り精度の劣化を防止するとともに、構造簡単
で組立て容易な送り機構とすることができる。またここ
で、一般に広く用いられ℃いるバックラッシュ除去のだ
めの種々技術を平ギヤ２０．１８に適用し、バックラッ
シュを除去すれば送シ精度はさらに向上する。Such gear coupling can absorb misalignment between the two axes, prevent deterioration of feed accuracy due to misalignment, and provide a feed mechanism that is simple in structure and easy to assemble. Furthermore, if various techniques for backlash removal, which are generally widely used, are applied to the spur gear 20.18 to remove backlash, the feeding accuracy can be further improved.
なお、本実施例において、雄ネジ１７を適宜回転するこ
とにより、平ギヤ２０．１８が噛み合う範囲でトラック
位置を調整することが可能であシ、雄ネジ１７はこのト
ラック位置調整後に固定される。In this embodiment, by appropriately rotating the male screw 17, it is possible to adjust the track position within the range in which the spur gear 20.18 meshes, and the male screw 17 is fixed after adjusting the track position. .
〈発明の効果〉
以上詳説したように本発明によれば、モータ軸とリード
スクリュー軸をギヤ結合することにより、両軸芯のズレ
が送シ精度を劣化されることを防止し、また構造簡単で
組立て容易な、実用価値の高い有用なＦＤ装置のヘッド
送シ機構が提供できる。<Effects of the Invention> As described in detail above, according to the present invention, by gear-coupling the motor shaft and the lead screw shaft, it is possible to prevent the misalignment of the centers of the two shafts from deteriorating the feeding accuracy, and to simplify the structure. It is possible to provide a head feeding mechanism for an FD device that is easy to assemble, has high practical value, and is useful.
第１図は本発明の一実施例を示す上側面図、第２図は第
１図のＡ−Ａ線断面図、第３図は従来例を示す上側面図
である。
Ｉ°°°磁気ヘッド、２・・・キャリッジ、４・・・パ
ルスモータ、６・・・回転−直線運動変換部材、１１−
！Ｊ−ドスクリュー、１８・２０・・・平ギヤ、１９“
°゛モータ軸FIG. 1 is a top side view showing an embodiment of the present invention, FIG. 2 is a sectional view taken along line A--A in FIG. 1, and FIG. 3 is a top side view showing a conventional example. I°°° magnetic head, 2... carriage, 4... pulse motor, 6... rotation-linear motion conversion member, 11-
! J-do screw, 18/20...Spur gear, 19"
°゛Motor shaft
Claims (1)
のヘッド送シ機構において、パルスモータの回転を、ギ
ヤ結合によシリ−トスクリユーに伝達したことを特徴と
するフロッピーディスク装置のヘッド送り機構。1. A head feeding mechanism for a floppy disk device using a lead screw, characterized in that the rotation of a pulse motor is transmitted to the series screw through gear coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10913484A JPS60251567A (en) | 1984-05-28 | 1984-05-28 | Head leading mechanism of floppy disk unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10913484A JPS60251567A (en) | 1984-05-28 | 1984-05-28 | Head leading mechanism of floppy disk unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60251567A true JPS60251567A (en) | 1985-12-12 |
Family
ID=14502439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10913484A Pending JPS60251567A (en) | 1984-05-28 | 1984-05-28 | Head leading mechanism of floppy disk unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60251567A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62241180A (en) * | 1986-04-14 | 1987-10-21 | Mitsubishi Electric Corp | Flexible disk device |
-
1984
- 1984-05-28 JP JP10913484A patent/JPS60251567A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62241180A (en) * | 1986-04-14 | 1987-10-21 | Mitsubishi Electric Corp | Flexible disk device |
| JPH0616347B2 (en) * | 1986-04-14 | 1994-03-02 | 三菱電機株式会社 | Flexible disk device |
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