JPS6192480A - Optical recording device - Google Patents

Optical recording device

Info

Publication number
JPS6192480A
JPS6192480A JP21398184A JP21398184A JPS6192480A JP S6192480 A JPS6192480 A JP S6192480A JP 21398184 A JP21398184 A JP 21398184A JP 21398184 A JP21398184 A JP 21398184A JP S6192480 A JPS6192480 A JP S6192480A
Authority
JP
Japan
Prior art keywords
rack
optical pickup
pinion
arm
shaft
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
Application number
JP21398184A
Other languages
Japanese (ja)
Inventor
Michio Yanagisawa
通雄 柳澤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP21398184A priority Critical patent/JPS6192480A/en
Publication of JPS6192480A publication Critical patent/JPS6192480A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/0857Arrangements for mechanically moving the whole head
    • G11B7/08582Sled-type positioners

Landscapes

  • Moving Of Heads (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)

Abstract

PURPOSE:To execute positioning with high accuracy by holding an optical pickup by one supporting shaft and a roller rolling on a rail fixed to a frame, fixing a rack to an arm, connecting the arm and the optical pickup by a spring, and pressing the rack against a pinion. CONSTITUTION:An optical pickup 1 is supported by a supporting shaft 2, a roller 3, and a rail 4 fixed to a frame, and it is in a state that it can go straight on in the radial direction of a recording medium. A worm 11 transmits a rota tion of a motor 12 shaft to a worm wheel 10, also it is transmitted to a pinion attached onto the same shaft, and it is converted to a linear motion by a rack 8. The rack 8 is fixed to an arm 5 supported by a pivot shaft 6 of the optical pickup, and pressed against a pinion 9 by a spring 7. In case when an abrasion of the rack pinion has been generated, the arm is inclined and an increase portion of a backlash is eliminated. In this way, a dislocation of the optical axis and an out-of-focus are not generated and recording and reproducing can be executed with high density.

Description

【発明の詳細な説明】 〔離業上の利用分野〕 本発明は光学式記録装置の光学ピックアップ位置決め機
構に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Application] The present invention relates to an optical pickup positioning mechanism for an optical recording device.

〔従来の技−〕[Traditional technique-]

従来の光学式記録装置において、光学ピックアップ位置
決め機←の多くは回転型のモータと歯車による伝達機構
に工って構成されている。歯車による動力伝達を行つ念
J4@は、パラクララ7による位置決め精度の低下が問
題になるために歯車を押圧してかみ曾わせる方法が考え
られている。
In conventional optical recording devices, most of the optical pickup positioning devices are constructed using a transmission mechanism using a rotary motor and gears. In the case of J4@, which uses gears to transmit power, there is a problem in that the positioning accuracy decreases due to the paraclara 7, so a method has been considered in which the gears are pressed and engaged.

本発明と同様に、ラックビニオ/を用いたリニアトラッ
ク方式による位置決め機構としては、磁気記録装置の分
野で、USP  4,42ELO12に開ホされている
第2図に示す工うな構造が考えられている。
Similar to the present invention, as a positioning mechanism using a linear track system using a rack binio, a structure like the one shown in FIG. 2 disclosed in USP 4,42 ELO 12 has been considered in the field of magnetic recording devices. .

第2図において、キャリッジ13は支持/ヤフト14の
回シに回転が可能な状態で支持されておυ、キャリッジ
に1li811I足されたラック15がモータ17の軸
に取付けられたピニオン16とかみ台っている。このと
き、ローラ18.アーム19.ばね20.ピン21から
gt55Cされる予圧酸#4に工りキャリッジは押され
ていて、ビニオ/にラックが押圧されているためにバラ
クララ7を取除くことが可能になっている。
In FIG. 2, the carriage 13 is rotatably supported by the shaft of a support/yaft 14, and a rack 15, which is added to the carriage, is connected to a pinion 16 attached to the shaft of a motor 17. ing. At this time, roller 18. Arm 19. Spring 20. The carriage is being pushed by the pre-pressure acid #4 applied from pin 21, and the rack is being pushed by the binoculars, making it possible to remove the balaclara 7.

〔発明が解決し:うとする問題点〕[Problems that the invention attempts to solve]

しかし前述の従来技術で光学式記録装置の光学ピックア
ップ位置決め機構を構成する場合、仄の工うな問題点が
生じる。
However, when constructing an optical pickup positioning mechanism of an optical recording apparatus using the above-mentioned conventional technique, a disadvantageous problem arises.

光学ピックアップの支持を、支持シャフトとラックピニ
オンに工って行うと、ラックピニオンの摩耗に裏って光
学ピックアップの傾きが生じてしまう。光学ピックアッ
プの傾きは、光軸のズV1焦点のボケの原因となり、特
にその原因が摩耗知よる変形という定量的な把握が困難
な場@は、補正手段が容易でないために、高密度記録を
達成することが困難になる。
If the optical pickup is supported by a support shaft and a rack and pinion, the optical pickup will tilt due to wear of the rack and pinion. The tilt of the optical pickup causes blurring of the optical axis V1 focal point, and especially when the cause is deformation due to wear and it is difficult to quantitatively understand, high-density recording is difficult because the correction method is not easy. becomes difficult to achieve.

ラックピニオンを適度に予圧してパラフラッフ金収除く
方法は、高精度な位置決めを行うために有効であるが、
ラックピニオンの摩耗が生じても光学ピックアップが傾
かない機構が高性能な光学式記録装置を構成するために
必要である。
The method of preloading the rack and pinion appropriately to remove parafluff metal is effective for high-precision positioning, but
A mechanism that prevents the optical pickup from tilting even when the rack and pinion wears out is necessary to construct a high-performance optical recording device.

そこで本発明はこのような問題点を解決するもので、そ
の目的とするところは高精度な位置決めを可能とするた
めにラックピニオンを押圧してバツクラツノfjr:@
除く方法を用いた際に光字ピックアップが傾くことなく
保持され、光軸のズレや。
The present invention is intended to solve these problems, and its purpose is to press the rack and pinion to enable highly accurate positioning.
When using the removing method, the optical pickup is held without tilting and the optical axis is not misaligned.

焦点のボケが生じない構造の光学記録装置の光学ピック
アップ位置決め機#4を提供するところにある。
An object of the present invention is to provide an optical pickup positioning machine #4 for an optical recording device having a structure that does not cause out-of-focus.

〔問題点を解決するための手段〕[Means for solving problems]

本発明の光学式記録装置の光学ピックアップ位置決め機
構は、モータと、該モータの回転を伝達する歯車列と該
歯車列に配されたビニオ/と、該ピニオンとかみ甘うラ
ックを備えた光学ピックアップを有しており、前記光学
ピックアップは一本の支持7ヤフトと、フレームに固定
されたレール上を転がる前記光学ビックアラ1に取付け
たローラに工って保持されて2す、前記ラックを、前記
光学ピックアップに固定したピンを中心に回転可能なア
ームに固定し、該アームと前記光学ピックアップをばね
に裏って接続し、前記ピニオンに前記ラックを押圧する
構造としたことを特徴とする8〔作用〕 本発明の上記の構成によれば、ラックは光学ピックアッ
プに対して回転可能な状態で支持されているアームに取
付けられ、アームと光学ピックアップを接続するばねに
工ってラックピニオンの摩耗によるバラクラツノの増加
が取除かれる、このとき光学ピックアップは支持ノヤフ
トとローラに工って姿勢の変化を起すことなく保持され
る。
The optical pickup positioning mechanism of the optical recording device of the present invention includes an optical pickup including a motor, a gear train for transmitting the rotation of the motor, a pinion arranged on the gear train, and a rack that engages with the pinion. The optical pickup is held by a single support 7 and a roller attached to the optical big rack 1 that rolls on a rail fixed to the frame, and the rack is mounted on the rack. [8] characterized by having a structure in which a pin fixed to an optical pickup is fixed to an arm rotatable around the center, the arm and the optical pickup are connected behind a spring, and the rack is pressed against the pinion. [Operation] According to the above structure of the present invention, the rack is attached to the arm that is rotatably supported with respect to the optical pickup, and the spring connecting the arm and the optical pickup is designed to prevent wear of the rack pinion. The increase in balaclava is removed, and at this time the optical pickup is held by the support shaft and rollers without causing any change in attitude.

〔実施例〕〔Example〕

第1図は1本発明の一夷地例を示す側面図である。第1
図を用いて本発明の詳細な説明する。
FIG. 1 is a side view showing one example of the present invention. 1st
The present invention will be explained in detail using the drawings.

第1図において光学ビツクアッグ1は支?f’/ヤフト
2と、ローラ5と、フレームに固定されたV−ル4に二
って支持されていて記録用媒体の半径方向に直進が51
能な状態になっている。モータ12の回転は歯車列を介
して光学ピックアップに伝達される。歯車列は、ウオー
ム11、ウオームホイール10、ピニオン9から構成さ
れ、ウオームは、モーター軸の回転をウオームホイール
に伝えておシラオームホイールの回転は同軸上に取付け
られたビニオ/に伝えられ、ラック8に工って直進運動
に変換される。ラックは、光学ピックアップのピボット
軸6によって支持されているアーム5に固定されてい1
、はね7に工ってピニオンに押圧すれている。ラックピ
ニオンの摩耗が生じた場合はアームが傾くことVc工っ
てバラクラツノの増加分を取除く。面ステップモータ等
を用いて減速用歯車をはふきピニオンを直接モータ軸に
取付ける構造に二っても、本発明の目的を達する効果が
得られることは言うまでもない。
In Figure 1, is the optical bigg 1 a support? It is supported by the f'/yaft 2, the roller 5, and the V-rule 4 fixed to the frame, and the recording medium moves straight in the radial direction.
is in a capable state. The rotation of the motor 12 is transmitted to the optical pickup via a gear train. The gear train consists of a worm 11, a worm wheel 10, and a pinion 9. The worm transmits the rotation of the motor shaft to the worm wheel, and the rotation of the worm wheel is transmitted to the coaxially mounted binoculars. 8 and converted into linear motion. The rack is fixed to an arm 5 supported by a pivot shaft 6 of the optical pickup 1
, spring 7 is pressed against the pinion. If the rack and pinion wears out, remove the increased amount of barrack horn by tilting the arm. It goes without saying that the effects of achieving the object of the present invention can also be obtained by using a surface step motor or the like to remove the deceleration gear and attach the pinion directly to the motor shaft.

〔発明の効果〕〔Effect of the invention〕

以上述べたように本発明によれば、ラックピニオンを押
圧して、摩耗が増加してもラックを支持するアームが光
学ピックアップに対して頌ぐために光学ピックアップの
支持状態に影#を与えないので、光軸のズレや焦点のボ
ケを生じることがないために、高密度な記録再生が可能
な光学記録装置を構成するための光学ピックアップ位置
決め機mを、構成できるという効果を有する。
As described above, according to the present invention, even if the rack pinion is pressed and wear increases, the arm supporting the rack will not affect the support state of the optical pickup because it will move against the optical pickup. Since there is no deviation of the optical axis or blurring of focus, it is possible to construct an optical pickup positioning machine m for constructing an optical recording device capable of high-density recording and reproduction.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の一実踊例を示す側面図。 1・・・”Jt’?ピックアップ 2・・・支持7ヤフ
ト6・・・ローラ       4・・・ガイドレール
5・・・アーム      6・・・ピボット+’、1
437・・・ばね       8・・・ラック9・・
・ピニオン    10・・・ウオームホイール11・
・・ウオーム    12・・・モータ第2図は、従来
の泣置決め機構を示す斜視図。 13・・・キャリッジ   14・・・支持シャフト1
5・・・ラック     16・・・ピニオン17・・
・モータ      18・・・ローラ19・・・アー
ム     20・・・ばね21・・・ビ/     
  22・・・フレーム以   上 第1図
FIG. 1 is a side view showing an example of a dance according to the present invention. 1... "Jt'? Pickup 2... Support 7 Yaft 6... Roller 4... Guide rail 5... Arm 6... Pivot +', 1
437...Spring 8...Rack 9...
・Pinion 10... Worm wheel 11・
...Worm 12...Motor FIG. 2 is a perspective view showing a conventional positioning mechanism. 13... Carriage 14... Support shaft 1
5...Rack 16...Pinion 17...
・Motor 18...Roller 19...Arm 20...Spring 21...Bi/
22...Frame or more Figure 1

Claims (1)

【特許請求の範囲】[Claims]  モータと、該モータの回転を伝達する歯車列と該歯車
列に配されたピオニンと、該ピオニンとかみ合うラック
を備えた光学式記録装置の光学ピックアップ位置決め機
構において、前記光学ピックアップは一本の支持シャフ
トとフレームに固定されたレール上を転がる前記光学ピ
ックアップに取付けたローラによつて保持されており、
前記ラックを、前記光学ピックアップに固定したピンを
中心に回転可能なアームに固定し、該アームと前記光ピ
ックアップをばねによつて接続し、前記ピニオンに前記
ラックを押圧する構造としたことを特徴とする光学式記
録装置。
In an optical pickup positioning mechanism for an optical recording device, the optical pickup is provided with a motor, a gear train for transmitting the rotation of the motor, a peonin disposed on the gear train, and a rack that meshes with the peonin. held by a roller attached to the optical pickup that rolls on a rail fixed to the shaft and frame;
The rack is fixed to an arm rotatable around a pin fixed to the optical pickup, the arm and the optical pickup are connected by a spring, and the rack is pressed against the pinion. Optical recording device.
JP21398184A 1984-10-12 1984-10-12 Optical recording device Pending JPS6192480A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21398184A JPS6192480A (en) 1984-10-12 1984-10-12 Optical recording device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21398184A JPS6192480A (en) 1984-10-12 1984-10-12 Optical recording device

Publications (1)

Publication Number Publication Date
JPS6192480A true JPS6192480A (en) 1986-05-10

Family

ID=16648266

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21398184A Pending JPS6192480A (en) 1984-10-12 1984-10-12 Optical recording device

Country Status (1)

Country Link
JP (1) JPS6192480A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63106964A (en) * 1986-10-23 1988-05-12 Canon Inc Recording or reproducing device
EP0869498A1 (en) * 1997-04-01 1998-10-07 Mitsumi Electric Company Ltd. Sled motor mounting structure and sliding feed mechanism provided with the sled motor mounting structure
JP2002343039A (en) * 2000-09-21 2002-11-29 Matsushita Electric Ind Co Ltd Optical disk device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63106964A (en) * 1986-10-23 1988-05-12 Canon Inc Recording or reproducing device
EP0869498A1 (en) * 1997-04-01 1998-10-07 Mitsumi Electric Company Ltd. Sled motor mounting structure and sliding feed mechanism provided with the sled motor mounting structure
JP2002343039A (en) * 2000-09-21 2002-11-29 Matsushita Electric Ind Co Ltd Optical disk device

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