JPH01220186A - Device for moving magnetic head - Google Patents
Device for moving magnetic headInfo
- Publication number
- JPH01220186A JPH01220186A JP4360488A JP4360488A JPH01220186A JP H01220186 A JPH01220186 A JP H01220186A JP 4360488 A JP4360488 A JP 4360488A JP 4360488 A JP4360488 A JP 4360488A JP H01220186 A JPH01220186 A JP H01220186A
- Authority
- JP
- Japan
- Prior art keywords
- lead screw
- screw
- carriage
- magnetic head
- needle
- 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.)
- Granted
Links
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
Landscapes
- Moving Of Heads (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は情報の記録・再生を行う磁気ヘッドを移動さ
せる装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for moving a magnetic head for recording and reproducing information.
第２図は例えば特開昭８２−１１７２号公報に示された
従来の磁気ヘッド移動装置を示す斜視図である。FIG. 2 is a perspective view showing a conventional magnetic head moving device disclosed in, for example, Japanese Patent Laid-Open No. 82-1172.
図中、（１）は円板状の記録媒体、（２）は記録媒体（
１）に当接して情報の記録・再生を行う一対の磁気ヘッ
ド（図示しない）の一方が装着されたキャリッジ、（３
）は上記磁気ヘッドの他方が装着されたアームで、キャ
リッジ（２）にねじ（４）で固定された弾性部材（５）
の一端に結合されている。（６）はキャリッジ（２）を
直線移動案内するガイド軸、（７）はキャリッジ駆動用
のモータ、（８）はモータ（７）によ多回転駆動される
リードスクリュー、（９）はキャリッジ（２）に固定さ
れリードスクリュー（８）のねじ溝と係合するニードル
、α呻はキャリッジ（２）の側面にねじ（Ｌｌ）で固定
されリードスクリュー（８）に対してニードル（９）と
反対側から接触してニードル（９）をリードスクリュー
（８）に一定圧で押圧させる加圧ばねである。In the figure, (1) is a disk-shaped recording medium, (2) is a recording medium (
a carriage (3) on which one of a pair of magnetic heads (not shown) is mounted that contacts the magnetic head (3) to record/reproduce information;
) is an arm to which the other magnetic head is attached, and an elastic member (5) fixed to the carriage (2) with a screw (4).
is connected to one end of the (6) is a guide shaft that guides the carriage (2) in linear movement, (7) is a motor for driving the carriage, (8) is a lead screw driven by the motor (7) multiple times, and (9) is a carriage ( 2) and engages with the thread groove of the lead screw (8), α is fixed to the side of the carriage (2) with a screw (Ll) and is opposite to the needle (9) with respect to the lead screw (8). This is a pressure spring that contacts from the side and presses the needle (9) against the lead screw (8) with a constant pressure.
従来の磁気ヘッド移動装置は上記のように構成され、ニ
ードル（９）はリードスクリュー（８）のねじのリード
角に相当する傾きをもってキャリッジ（２）に固定され
、リードスクリュー（８）のねじ溝に係合し。The conventional magnetic head moving device is constructed as described above, in which the needle (9) is fixed to the carriage (2) with an inclination corresponding to the lead angle of the lead screw (8), and the needle (9) is fixed to the carriage (2) with an inclination corresponding to the lead angle of the lead screw (8). engaged with.
加圧ばねα＠によって保合が保持されている。The attachment is maintained by a pressure spring α@.
ここで、モータ（７）を回転させると、リードスクリュ
ー（８）が回転し、この回転はニードル（９）を介して
キャリッジ（２）に直線運動として伝達され、キャリッ
ジ（２）はガイド軸（６）に案内されて移動する。キャ
リッジ（２）が所定の位置まで移動すると、キャリッジ
（２）及びアーム（３）の磁気ヘッドが記録媒体（１）
に当接し、情報の記録・再生が行われる。Here, when the motor (7) is rotated, the lead screw (8) rotates, and this rotation is transmitted as a linear motion to the carriage (2) via the needle (9), and the carriage (2) is moved to the guide shaft ( 6) Move under the guidance of. When the carriage (2) moves to a predetermined position, the magnetic heads of the carriage (2) and arm (3) touch the recording medium (1).
information is recorded and reproduced.
上記のような従来の磁気ヘッド移動装置では。 In the conventional magnetic head moving device as described above.
ニードル（９）をリードスクリュー（８）に押圧させる
加圧ばねα呻を、ねじＩでキャリッジ（２）の側面に固
定しているため、加圧ばね（１１を単独部品として設け
なければならず、かつ加圧ばねσ〔の固定点からリード
スクリュー（８）に接触する作用点までの距離が短いた
め、加圧荷重が変動し、荷重の調整をする必要があると
いう問題点がある。Since the pressure spring α that presses the needle (9) against the lead screw (8) is fixed to the side of the carriage (2) with screw I, the pressure spring (11) must be provided as a separate component. , and because the distance from the fixed point of the pressure spring σ to the point of action that contacts the lead screw (8) is short, there is a problem that the pressure load fluctuates and it is necessary to adjust the load.
この発明は上記問題点を解決するためになされたもので
２部品点数が削減できると共に、加圧ばねの荷重が均一
となって安定した性能が確保できるようにした磁気ヘッ
ド移動装置を提供することを目的とする。The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a magnetic head moving device in which the number of parts can be reduced by two, and the load of the pressure spring can be made uniform to ensure stable performance. With the goal.
この発明に係る磁気ヘッド移動装置は、磁気ヘッドが装
着されたアームをキャリッジに結合する弾性部材の一部
を、リードスクリューの方へ延在させて、ニードルをリ
ードスクリューに押圧する加圧ばねとしたものである。In the magnetic head moving device according to the present invention, a part of the elastic member that connects the arm on which the magnetic head is attached to the carriage is extended toward the lead screw, and a pressure spring that presses the needle against the lead screw is used. This is what I did.
この発明においては、アームをキャリッジに結合する弾
性部材の一部を延在させて加圧ばねとしたため、加圧ば
ねは弾性部材と同体に形成される。In this invention, a part of the elastic member that connects the arm to the carriage is extended to form the pressure spring, so the pressure spring is formed integrally with the elastic member.
また、加圧ばねの固定点からリードスクリューへの作用
点までの距離は長くなる。Furthermore, the distance from the fixing point of the pressure spring to the point of action on the lead screw becomes longer.
第１図はこの発明の一実施例を示す斜視図であり、従来
装置と同様の部分は同一符号により示す。FIG. 1 is a perspective view showing an embodiment of the present invention, and parts similar to those of the conventional device are designated by the same reference numerals.
図中、 （５ａ）は弾性部材（５）の一部がリードスク
リュー（８）の方へ延在されてリードスクリュー（８）
に接触し、ニードル（９）をリードスクリ＄−（８１に
一定圧で押圧させる加圧ばね部である。In the figure, (5a) shows a part of the elastic member (5) extending toward the lead screw (8).
This is a pressure spring part that contacts the needle (9) and presses the lead screw (81) with a constant pressure.
上記のように構成された磁気ヘッド移動装置において、
リードスクリュー（８）の回転が、ニードル（９）を介
して直線運動に変換されることは従来装置と同様である
。In the magnetic head moving device configured as described above,
Similar to the conventional device, rotation of the lead screw (8) is converted into linear motion via the needle (9).
加圧ばね部（４ａ）の固定点（ねじ（４）の位置）から
リードスクリュー（８）に接触する作用点までの距離は
、第１図のものに比して明らかに長いので、他の部品の
寸法誤差に対する加圧荷重の変動は小さくなる。また、
固定点から作用点までの距離は。The distance from the fixing point of the pressure spring part (4a) (the position of the screw (4)) to the point of action that contacts the lead screw (8) is clearly longer than that in Fig. 1, so other Fluctuations in pressurized load due to dimensional errors in parts are reduced. Also,
What is the distance from the fixed point to the point of action?
ねじ（４）の位置を任意に選ぶことによシ、加圧荷重及
びはね定数を広範囲にわたって設定することができる。By arbitrarily selecting the position of the screw (4), the pressurized load and spring constant can be set over a wide range.
したがって、必要とする加圧荷重が２部品の寸法誤差に
対しても安定して得られるようなばね仕様とすることが
可能となる。Therefore, it is possible to provide a spring specification that allows the required pressurized load to be stably obtained even in the face of dimensional errors between the two parts.
以上説明したとおシこの発明では、磁気ヘッドが装着さ
れたアームをキャリッジに結合する弾性部材の一部を、
リードスクリューの方へ延在させて、ニードルをリード
スクリューに押圧する加圧ばねとしたので、加圧ばねは
弾性ばねと同体に形成されて部品点数を削減することが
できると共に。As described above, in this invention, a part of the elastic member that connects the arm on which the magnetic head is attached to the carriage is
Since the pressure spring is extended toward the lead screw and presses the needle against the lead screw, the pressure spring is formed integrally with the elastic spring, and the number of parts can be reduced.
加圧ばねの固定点からリードスクリューへの作用点まで
の距離は長くなり、加圧ばねの荷重の変動をなくシ、安
定した性能を確保できる効果がある。The distance from the fixing point of the pressure spring to the point of application to the lead screw becomes longer, which has the effect of eliminating fluctuations in the load of the pressure spring and ensuring stable performance.
【図面の簡単な説明】
第１図はこの発明による磁気ヘッド移動装置の一実施例
を示す斜視図、第２図は従来の磁気ヘッド移動装置を示
す斜視図である。
図中、（１）は記録媒体、（２）はキャリッジ、（３）
はアーム、（５）は弾性部材、 （５ａ）は加圧ばね部
、（６）はガイド軸、（７）はモータ、（８）はリード
スクリュー、（９）はニードルである。
なお１図中同一符号は同−又は相当部分を示す。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a magnetic head moving device according to the present invention, and FIG. 2 is a perspective view showing a conventional magnetic head moving device. In the figure, (1) is the recording medium, (2) is the carriage, and (3)
is an arm, (5) is an elastic member, (5a) is a pressurizing spring portion, (6) is a guide shaft, (7) is a motor, (8) is a lead screw, and (9) is a needle. Note that the same reference numerals in each figure indicate the same or corresponding parts.
Claims (1)
記録・再生用の一対の磁気ヘッドの一方が装着され上記
リードスクリューと平行に案内されるキャリッジとを配
置し、このキャリッジに上記磁気ヘッドの他方が装着さ
れたアームを弾性部材を介して結合し、かつ上記キャリ
ッジに上記リードスクリューに係合するニードルと、こ
のニードルを上記リードスクリューに押圧する加圧ばね
とを設けたものにおいて、上記弾性部材の一部を上記リ
ードスクリューの方へ延在させて上記加圧ばねを構成し
たことを特徴とする磁気ヘッド移動装置。A lead screw driven by a motor and a carriage to which one of a pair of magnetic heads for recording/reproducing information is mounted and guided in parallel with the lead screw are arranged, and the carriage is guided in parallel with the lead screw. is connected via an elastic member, and the carriage is provided with a needle that engages with the lead screw, and a pressure spring that presses the needle against the lead screw, wherein the elastic member A magnetic head moving device characterized in that the pressure spring is configured by extending a part of the pressure spring toward the lead screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63043604A JPH06105538B2 (en) | 1988-02-26 | 1988-02-26 | Magnetic head moving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63043604A JPH06105538B2 (en) | 1988-02-26 | 1988-02-26 | Magnetic head moving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01220186A true JPH01220186A (en) | 1989-09-01 |
| JPH06105538B2 JPH06105538B2 (en) | 1994-12-21 |
Family
ID=12668430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63043604A Expired - Fee Related JPH06105538B2 (en) | 1988-02-26 | 1988-02-26 | Magnetic head moving device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06105538B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006061732A1 (en) * | 2004-12-06 | 2006-06-15 | Koninklijke Philips Electronics N.V. | Guiding system for guiding an object along a motor driven spindle and module equipped with such guiding system |
-
1988
- 1988-02-26 JP JP63043604A patent/JPH06105538B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006061732A1 (en) * | 2004-12-06 | 2006-06-15 | Koninklijke Philips Electronics N.V. | Guiding system for guiding an object along a motor driven spindle and module equipped with such guiding system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06105538B2 (en) | 1994-12-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |