JPH06105538B2 - Magnetic head moving device - Google Patents
Magnetic head moving deviceInfo
- Publication number
- JPH06105538B2 JPH06105538B2 JP63043604A JP4360488A JPH06105538B2 JP H06105538 B2 JPH06105538 B2 JP H06105538B2 JP 63043604 A JP63043604 A JP 63043604A JP 4360488 A JP4360488 A JP 4360488A JP H06105538 B2 JPH06105538 B2 JP H06105538B2
- Authority
- JP
- Japan
- Prior art keywords
- lead screw
- carriage
- magnetic head
- moving device
- pressure spring
- 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 - Fee Related
Links
Landscapes
- Moving Of Heads (AREA)
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・再生を行う磁気ヘツドを移動さ
せる装置に関するものである。The present invention relates to an apparatus for moving a magnetic head for recording / reproducing information.
第２図は例えば特開昭62−1172号公報に示された従来の
磁気ヘツ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. 62-1172.
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
ツド（図示しない）の一方が装着されたキヤリツジ，
（３）は上記磁気ヘツドの他方が装着されたアームで，
キヤリツジ（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）はキヤリツジ
（２）を直線移動案内するガイド軸，（７）はキヤリツ
ジ駆動用のモータ，（８）はモータ（７）により回転駆
動されるリードスクリユー，（９）はキヤリツジ（２）
に固定されリードスクリユー（８）のねじ溝と係合する
ニードル，（10）はキヤリツジ（２）の側面にねじ（1
1）で固定されリードスクリユー（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
スクリユー（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 carriage equipped with one of a pair of magnetic heads (not shown) for recording / reproducing information by contacting the recording medium (1),
(3) is an arm to which the other of the above magnetic heads is attached,
It is connected to one end of an elastic member (5) fixed to the carriage (2) with a screw (4). (6) is a guide shaft for linearly guiding the carriage (2), (7) is a motor for driving the carriage, (8) is a lead screw rotated by the motor (7), and (9) is the carriage (2). )
Is fixed to the needle and engages with the thread groove of the lead screw (8), and (10) is a screw (1) on the side surface of the carriage (2).
The pressure spring is fixed in 1) and comes into contact with the lead screw (8) from the opposite side of the needle (9) to press the needle (9) against the lead screw (8) at a constant pressure.
従来の磁気ヘツド移動装置は上記のように構成され、ニ
ードル（９）はリードスクリユー（８）のねじのリード
角に相当する傾きをもつてキヤリツジ（２）に固定さ
れ，リードスクリユー（８）のねじ溝に係合し，加圧ば
ね（10）によつて係合が保持されている。The conventional magnetic head moving device is constructed as described above, and the needle (9) is fixed to the carriage (2) with an inclination corresponding to the lead angle of the screw of the lead screw (8), and the lead screw (8). ), And the engagement is held by the pressure spring (10).
ここで，モータ（７）を回転させると，リードスクリユ
ー（８）が回転し，この回転はニードル（９）を介して
キヤリツジ（２）に直線運動として伝達され，キヤリツ
ジ（２）はガイド軸（６）に案内されて移動する。キヤ
リツジ（２）が所定の位置まで移動すると，キヤリツジ
（２）及びアーム（３）の磁気ヘツドが記録媒体（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) is rotated, and this rotation is transmitted to the carriage (2) as a linear motion via the needle (9), and the carriage (2) is guided by the guide shaft. Move by being guided by (6). When the carriage (2) moves to a predetermined position, the magnetic heads of the carriage (2) and the arm (3) move to the recording medium (1).
Then, information is recorded / reproduced.
上記のような従来の磁気ヘツド移動装置では，ニードル
（９）をリードスクリユー（８）に押圧させる加圧ばね
（10）を，ねじ（11）でキヤリツジ（２）の側面に固定
しているため，加圧ばね（10）を単独部品として設けな
ければならず，かつ加圧ばね（10）の固定点からリード
スクリユー（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。In the conventional magnetic head moving device as described above, the pressure spring (10) for pressing the needle (9) against the lead screw (8) is fixed to the side surface of the carriage (2) with the screw (11). Therefore, the pressure spring (10) must be provided as a separate component, and the distance from the fixing point of the pressure spring (10) to the point of contact with the lead screw (8) is short, so 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，部品点数が削減できると共に、加圧ばねの荷重が均
一となつて安定した性能が確保できるようにした磁気ヘ
ツ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 provides a magnetic head moving device capable of reducing the number of parts and ensuring a stable performance by making the load of a pressure spring uniform. With the goal.
この発明に係る磁気ヘツド移動装置は，磁気ヘツドが装
着されたアームをキヤリツジに結合する弾性部材の一部
を，リードスクリユーの方へ延在させて，ニードルをリ
ードスクリユ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 for connecting the arm on which the magnetic head is mounted to the carriage is extended toward the lead screw to press the needle against the lead screw. It is a spring.
この発明においては，アームをキヤリツジに結合する弾
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。また，加圧ばねの固
定点からリードスクリユーへの作用点までの距離は長く
なる。In the present invention, the pressure spring is formed integrally with the elastic member because a part of the elastic member connecting the arm to the carriage is extended to form the pressure spring. In addition, 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 the same parts as 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ユ
ー（８）の方へ延在されてリードスクリユー（８）に接
触し，ニードル（９）をリードスクリユー（８）に一定
圧で押圧させる加圧ばね部である。In the figure, (5a) shows that a part of the elastic member (5) is extended toward the lead screw (8) to contact the lead screw (8), and the needle (9) is moved to the lead screw (8). It is a pressure spring part that presses with a constant pressure.
上記のように構成された磁気ヘツド移動装置において，
リードスクリユー（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,
The rotation of the lead screw (8) is converted into a linear motion via the needle (9) as in the conventional device.
加圧ばね部（4a）の固定点（ねじ（４）の位置）からリ
ードスクリユー（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，ねじ（４）の位置を任意
に選ぶことにより，加圧荷重及びばね定数を広範囲にわ
たつて設定することができる。したがつて，必要とする
加圧荷重が，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。The distance from the fixing point (position of the screw (4)) of the pressure spring part (4a) to the point of contact with the lead screw (8) is
Since it is obviously longer than that of FIG. 1, the fluctuation of the pressurizing load due to the dimensional error of other parts is small. Further, the distance from the fixed point to the action point can be set over a wide range of the pressing load and the spring constant by arbitrarily selecting the position of the screw (4). Therefore, it is possible to make the spring specifications such that the required pressurizing load can be obtained stably even with respect to the dimensional error of the parts.
以上説明したとおりこの発明では，磁気ヘツドが装着さ
れたアームをキヤリツジに結合する弾性部材の一部を，
リードスクリユーの方へ延在させて，ニードルをリード
スクリユ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，加圧ばねの固定点からリードスクリユー
への作用点までの距離は長くなり，加圧ばねの荷重の変
動をなくし，安定した性能を確保できる効果がある。As described above, in the present invention, a part of the elastic member for connecting the arm to which the magnetic head is attached to the carriage is
Since it is a pressure spring that extends toward the lead screw and presses the needle against the lead screw, the pressure spring is formed in the same body as the elastic spring to reduce the number of parts and The distance from the fixed point of the spring to the point of action on the lead screw becomes longer, which has the effect of eliminating fluctuations in the load of the pressure spring and ensuring stable performance.
第１図はこの発明による磁気ヘツド移動装置の一実施例
を示す斜視図，第２図は従来の磁気ヘツド移動装置を示
す斜視図である。 図中，（１）は記録媒体，（２）はキヤリツジ，（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
クリユー，（９）はニードルである。 なお，図中同一符号は同一又は相当部分を示す。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 a recording medium, (2) is a carrier and (3).
Is an arm, (5) is an elastic member, (5a) is a pressure spring part,
(6) is a guide shaft, (7) is a motor, (8) is a lead screw, and (9) is a needle. In the drawings, the same reference numerals indicate the same or corresponding parts.
Claims (1)
ーと，情報の記録・再生用の一対の磁気ヘツドの一方が
装着され上記リードスクリユーと平行に案内されるキヤ
リツジとを配置し，このキヤリツジに上記磁気ヘツドの
他方が装着されたアームを弾性部材を介して結合し，か
つ上記キヤリツジに上記リードスクリユーに係合するニ
ードルと，このニードルを上記リードスクリユーに押圧
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ユ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ツド移動装置。1. 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 which is guided in parallel with the lead screw are arranged. A needle that connects the arm to which the other of the magnetic heads is attached to the carriage through an elastic member and that engages the lead screw with the carriage, and a pressure spring that presses the needle against the lead screw. The magnetic head moving device according to claim 1, wherein a part of the elastic member is extended toward the lead screw to constitute the pressure spring.
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 JPH01220186A (en) | 1989-09-01 |
| JPH06105538B2 true 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) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1825463A1 (en) * | 2004-12-06 | 2007-08-29 | 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
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01220186A (en) | 1989-09-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |