JPH0349146B2 - - Google Patents
Info
- Publication number
- JPH0349146B2 JPH0349146B2 JP24520784A JP24520784A JPH0349146B2 JP H0349146 B2 JPH0349146 B2 JP H0349146B2 JP 24520784 A JP24520784 A JP 24520784A JP 24520784 A JP24520784 A JP 24520784A JP H0349146 B2 JPH0349146 B2 JP H0349146B2
- Authority
- JP
- Japan
- Prior art keywords
- head
- transfer table
- disk
- attached
- linear motor
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
- G11B21/08—Track changing or selecting during transducing operation
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
- G11B33/08—Insulation or absorption of undesired vibrations or sounds
Landscapes
- Moving Of Heads (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は光学記録、再生装置等に用いる事の出
来るヘツドの移送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 head transfer device that can be used in optical recording and reproducing devices.
従来の技術
近年、情報記録の媒体として、記録、再生のア
クセスが任意に選べるデイスクフアイルの進出は
めざましいものがあり、とりわけ記録密度の向上
と動作の精度向上が求められている。動作精度の
向上を求める従来の技術として例えば、実開昭59
−92462号公報の「書込み・読出しヘツドの送り
装置」について以下に図面を参照して説明する。
第４図、第５図、第６図に示すように、書込み・
読出しヘツド１を取付けた移送造台２と、この移
送台を所定の方向にガイドするガイドシヤフト３
ａ，３ｂと、移送台２と係合し、パルスモータ４
の回転をスクリユネジ５を介して、移送台２を所
定の方向に駆動する駆動手段６とを備えこの駆動
手段６の駆動伝達経路上で、移送台２を一方向に
付勢するガタ防止手段のスプリング７を設けたも
のであり、パルスモータの回転を移送台の駆動方
向に変換する手段の中に介在する遊び空間が、動
作の精度を阻害し、且つ動作が衝撃的に伝達する
ために生ずる振動とあいまつて精度を著しく低下
するものであり、以上の障害を克服する手段とし
て駆動伝達経路上に移送台をスプリングで一方向
に付勢しガタ防止をしている。2. Description of the Related Art In recent years, disk files, in which access for recording and reproduction can be arbitrarily selected, have made remarkable advances as information recording media, and in particular, improvements in recording density and precision in operation are required. For example, as a conventional technology that seeks to improve motion accuracy,
The ``writing/reading head feeding device'' disclosed in Japanese Patent Publication No.-92462 will be described below with reference to the drawings.
As shown in Figures 4, 5, and 6, writing and
A transfer base 2 to which the read head 1 is attached, and a guide shaft 3 that guides the transfer base in a predetermined direction.
a, 3b and the transfer table 2, and the pulse motor 4
and a drive means 6 for driving the transfer table 2 in a predetermined direction via a screw screw 5. On the drive transmission path of the drive means 6, a backlash prevention means for urging the transfer table 2 in one direction is provided. The spring 7 is provided, and this occurs because the play space interposed in the means for converting the rotation of the pulse motor into the driving direction of the transfer table impedes the precision of the movement and also causes the movement to be transmitted impulsively. Combined with vibration, the accuracy is significantly reduced.As a means of overcoming the above-mentioned obstacles, a spring is used to bias the transfer table in one direction on the drive transmission path to prevent rattling.
発明が解決しようとする問題点
このように駆動伝達経路上にスプリングを用い
て移送台をを一方向に付勢したガタ防止手段では
デイスクの任意の位置の記録をアクセスするた
め、モータは正・逆両方向に回転するため、逆方
向に回転した時、一方向に付勢された駆動伝達手
段は逆方向に動作した場合、遊び空間を回転した
後、次の伝達手段に接触するために生ずる、有害
な微衝撃を生ずる問題がある。Problems to be Solved by the Invention In the rattling prevention means that uses a spring on the drive transmission path to bias the transfer table in one direction, since the record at any position on the disk is accessed, the motor is Because it rotates in both opposite directions, when it rotates in the opposite direction, if the drive transmission means that is biased in one direction moves in the opposite direction, it will contact the next transmission means after rotating through the idle space. There is a problem with the generation of harmful micro-impacts.
本発明はこのような従来の問題点を解消するも
のであり、簡単な構成で移送台の駆動部に生じた
微振動、微衝撃を吸収し、高精度なトレースを可
能としたヘツド移送装置を提供するものである。 The present invention solves these conventional problems, and provides a head transfer device that has a simple structure, absorbs slight vibrations and shocks generated in the drive section of the transfer table, and enables highly accurate tracing. This is what we provide.
問題点を解決するための手段
本発明のヘツド移送装置は、一方の端部に電機
子用コイルを取付けてリニアモータの一部を構成
し、他端にヘツドハウジングを備え、それらを薄
肉の板体を凹凸に折曲げて波形状に形成したアー
ムで連結することにより、駆動部で発生する微振
動の伝動距離を大きくして伝導効率の低下と、駆
動部で発生する定在波的振動を波形状に形成した
アームで相殺、軽減するよう作用するものであ
る。Means for Solving the Problems The head transfer device of the present invention has an armature coil attached to one end to constitute a part of a linear motor, a head housing to the other end, and a thin plate. By bending the body into a wave shape and connecting the arms, the transmission distance of the micro vibrations generated in the drive part is increased, reducing the transmission efficiency and reducing the standing wave vibrations generated in the drive part. The wave-shaped arms act to offset and reduce the damage.
実施例
以下に本発明の一実施例におけるヘツド移送装
置について図面を参照して説明する。Embodiment A head transfer device according to an embodiment of the present invention will be described below with reference to the drawings.
第１図、第２図、第３図に示す如く、基台１１
に取付けられたモータ１２の回転が回転軸１３を
介してデイスク１４を回転し、ヘツド１５により
レーザ光源からの光をデイスク１４に当てる、デ
イスク１４には多数のビツトが並んでおり、記録
はビツトの長さや間隔に変化などによりあらわさ
れるものである。デイスク１４のビツトに当つた
光の反射をピツクアツプし、音声や映像を再生す
るものであるが、デイスク上の任意の記録を再生
するためのヘツド１５をデイスクの所望の位置に
移送するため移送台１６の一方の端部に取付け
る。移送台１６の他の端部には電機子用コイル１
７を取付けてリニアモータの一部を構成し、ヘツ
ド１５とリニアモータとの間を薄肉の板体を波形
状に形成したアーム１８で連結する。移送台１６
はベアリング１９により移送をスムーズにさせ、
またリニアモータの界磁部２０は基台１１に固定
される。以上のようにヘツド取付部とリニアモー
タ部の間を薄肉の板体を波形状に形成したアーム
１８で連結する構造としているため、駆動部とヘ
ツドハウジングの距離を大きくなり、駆動部で発
生した振動の伝動効率を低くし、更にアームを波
形状とする事により、定在波的振動を相殺、軽減
することが出来るものである。 As shown in FIGS. 1, 2, and 3, the base 11
The rotation of a motor 12 attached to the disk rotates a disk 14 via a rotating shaft 13, and a head 15 illuminates the disk 14 with light from a laser light source.A large number of bits are lined up on the disk 14, and recording is performed in bits. It is expressed by changes in the length and spacing of . The device picks up the reflection of light that hits the bits on the disk 14 and plays back audio and video.A transfer table is used to move the head 15 to a desired position on the disk for playing back any recording on the disk. Attach it to one end of 16. The armature coil 1 is attached to the other end of the transfer table 16.
7 is attached to form a part of the linear motor, and the head 15 and the linear motor are connected by an arm 18 made of a thin plate formed into a corrugated shape. Transfer table 16
The bearing 19 makes the transfer smooth,
Further, the field section 20 of the linear motor is fixed to the base 11. As described above, since the head mounting part and the linear motor part are connected by the arm 18, which is a thin plate formed into a corrugated shape, the distance between the drive part and the head housing is increased, and By lowering the vibration transmission efficiency and making the arm wave-shaped, standing wave-like vibrations can be canceled out and reduced.
発明の効果
以上のように本発明のヘツド移送装置によれ
ば、移送台の一端に電機子用コイルを取付けてリ
ニアモータの一部を構成し、他端にヘツドを備え
それらを薄肉状の板体を凹凸に折曲げて波形状に
形成したアームで連結しているため、駆動部から
ヘツドまでを波形状のアームで距離を長くとる事
が出来、駆動部で発生した振動を軽減することが
出来、ヘツドのトレース性能を向上する事が出来
るヘツドの移送装置を得る事が出来るものであ
る。Effects of the Invention As described above, according to the head transfer device of the present invention, the armature coil is attached to one end of the transfer table to constitute a part of the linear motor, and the head is attached to the other end, and these are connected to the thin plate. Since the body is bent in a concave and convex manner and connected by a wave-shaped arm, the distance from the drive unit to the head can be extended by the wave-shaped arm, and vibrations generated in the drive unit can be reduced. Thus, it is possible to obtain a head transfer device that can improve the tracing performance of the head.
第１図は本発明の一実施例における移送台の分
解斜視図、第２図Ａは同平面図、Ｂは同アーム形
状の変形例を示す平面図、第３図は同側断面図、
第４，５，６、図は従来例における移送装置を示
す平面図である。
１１……基台、１２……モータ、１３……軸、
１４……デイスク、１５……ヘツド、１６……移
送台、１７……電機子用コイル、１８……アー
ム、１９……ベアリング、２０……界磁部。
FIG. 1 is an exploded perspective view of a transfer table according to an embodiment of the present invention, FIG. 2A is a plan view of the same, B is a plan view showing a modification of the arm shape, and FIG. 3 is a sectional view of the same side.
The fourth, fifth, and sixth figures are plan views showing a conventional transfer device. 11... Base, 12... Motor, 13... Axis,
14... Disk, 15... Head, 16... Transfer table, 17... Armature coil, 18... Arm, 19... Bearing, 20... Field section.
Claims (1)
アモータの一部を構成し、他端にヘツドハウジン
グを備え、それらを薄肉の板体を凹凸に折曲げて
波形状に形成したアームで連結し、リニアモータ
の駆動によりヘツドを所望の位置に移送出来るよ
うにしたヘツド移送装置。1 An armature coil is attached to one end to form part of a linear motor, a head housing is attached to the other end, and these are connected by an arm formed by bending a thin plate into a corrugated shape. A head transfer device that can move the head to a desired position by driving a linear motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59245207A JPS61123071A (en) | 1984-11-20 | 1984-11-20 | head transfer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59245207A JPS61123071A (en) | 1984-11-20 | 1984-11-20 | head transfer device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61123071A JPS61123071A (en) | 1986-06-10 |
| JPH0349146B2 true JPH0349146B2 (en) | 1991-07-26 |
Family
ID=17130215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59245207A Granted JPS61123071A (en) | 1984-11-20 | 1984-11-20 | head transfer device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61123071A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0213561B1 (en) * | 1985-08-27 | 1990-11-14 | Siemens Aktiengesellschaft | Positioning device for an optical-disc memory |
| JP4940766B2 (en) * | 2006-06-02 | 2012-05-30 | 大日本印刷株式会社 | Stick type container |
| JP6472560B2 (en) * | 2018-05-25 | 2019-02-20 | ミネベアミツミ株式会社 | Vibration generator |
-
1984
- 1984-11-20 JP JP59245207A patent/JPS61123071A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61123071A (en) | 1986-06-10 |
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