JPH0474323A - Objective lens cleaning mechanism in optical information recording/reproducing device - Google Patents

Objective lens cleaning mechanism in optical information recording/reproducing device

Info

Publication number
JPH0474323A
JPH0474323A JP2187145A JP18714590A JPH0474323A JP H0474323 A JPH0474323 A JP H0474323A JP 2187145 A JP2187145 A JP 2187145A JP 18714590 A JP18714590 A JP 18714590A JP H0474323 A JPH0474323 A JP H0474323A
Authority
JP
Japan
Prior art keywords
objective lens
carriage
cleaning
home position
optical information
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
Application number
JP2187145A
Other languages
Japanese (ja)
Other versions
JP2735135B2 (en
Inventor
Tadashi Arai
忠 新井
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP2187145A priority Critical patent/JP2735135B2/en
Publication of JPH0474323A publication Critical patent/JPH0474323A/en
Application granted granted Critical
Publication of JP2735135B2 publication Critical patent/JP2735135B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Optical Head (AREA)

Abstract

PURPOSE:To clean the objective lens in a home position of a carriage by allowing a cleaning lever provided with a cleaning member for cleaning the surface of the objective lens to interlock with the carriage. CONSTITUTION:When a carriage 1 moves along a guide rail 11, and it is returned to a home position, the arm part of an interlocking piece 3 is pushed by its pressing piece 1a, it is turned against a spring 7, and a cleaning lever 5 is turned. By its turning, a cleaning member 9 is allowed to slide against the surface of an objective lens 2 on the carriage 1, and it is cleaned. In such a way, cleaning of the objective lens 2 can be realized in a home position.

Description

【発明の詳細な説明】 (産業上の利用分野 ) 本発明はディスク状の記録媒体に対物レンズを介して光
ビームを照射して、情報の記録、再生を行う光学式情報
記録再生装置における対物レンズクリーニング機構に関
する。
Detailed Description of the Invention (Industrial Field of Application) The present invention relates to an objective in an optical information recording and reproducing apparatus that records and reproduces information by irradiating a disc-shaped recording medium with a light beam through an objective lens. This invention relates to a lens cleaning mechanism.

(従来の技術 ) この種の情報記録再生装置は光ディスクなどの情報記録
媒体に対して、光源から射出された光ビームを収束する
ために対物レンズを使用している。上記対物レンズは上
記記録媒体に対するアクセスのために用意されたキャリ
ッジ士に搭載されている光学系に含まれていて、アクチ
ュエータなどの手段を用いてトラッキング制御あるいは
フォーカシング制御されるようになっている。
(Prior Art) This type of information recording and reproducing apparatus uses an objective lens to converge a light beam emitted from a light source onto an information recording medium such as an optical disk. The objective lens is included in an optical system mounted on a carriage provided for accessing the recording medium, and is controlled for tracking or focusing using means such as an actuator.

(発明が解決しようとする課題 ) このような対物レンズの制御のため、そこには高精度の
軸および軸受けが装備されるので、その箇所に塵埃など
が侵入すると摩耗、損傷の原因となるから、通常は防塵
カバーなどが取りつけられる。しかし、上記記録媒体に
対向する対物レンズは常に露出した状況に置かれるから
、その露出表面には使用過程において塵埃の付着が避は
難いのである。
(Problem to be solved by the invention) In order to control such an objective lens, it is equipped with a high-precision shaft and bearing, so if dust or the like gets into those parts, it can cause wear and damage. , usually a dustproof cover is attached. However, since the objective lens facing the recording medium is always exposed, it is difficult to prevent dust from adhering to the exposed surface during use.

これは記録、再生の際の誤信号発生の原因となる。This causes the generation of erroneous signals during recording and reproduction.

本発明は上記事情に基いてなされたもので、対物レンズ
が使用されない、キャリッジのホーム位置において、上
記対物レンズを掃拭することができるようにした光学式
情報記録再生装置における対物レンズクリーニング機構
を提供しようとするものである。
The present invention has been made based on the above circumstances, and provides an objective lens cleaning mechanism in an optical information recording/reproducing apparatus that is capable of wiping the objective lens at the home position of the carriage when the objective lens is not used. This is what we are trying to provide.

(課題を解決するための手段 ) このため、本発明では、ディスク状の記録媒体に対物レ
ンズを介して光ビームを照射して、情報の記録、再生を
行う光学式情報記録再生装置において、その対物レンズ
をクリーニングするために、上記対物レンズを保持する
キャリッジがホム位置に戻されるとき、及びそこから移
動されるとき、上記対物レンズの表面を掃拭するクリー
ニング部材をクリーニングレバーに設け、上記クリニン
グレバーを上記キャリッジに連動させている。
(Means for Solving the Problems) Therefore, the present invention provides an optical information recording and reproducing apparatus that records and reproduces information by irradiating a disc-shaped recording medium with a light beam through an objective lens. In order to clean the objective lens, the cleaning lever is provided with a cleaning member that wipes the surface of the objective lens when the carriage holding the objective lens is returned to the home position and moved from there. The lever is linked to the carriage.

(作  用  ) 従って、キャリッジがホーム位置に戻る都度或は上記ホ
ーム位置から移動を開始する都度、上記対物レンズは上
記クリーニング部材によってその外表面をクリーニング
されるのである。
(Function) Therefore, each time the carriage returns to the home position or starts moving from the home position, the outer surface of the objective lens is cleaned by the cleaning member.

このため、何時も上記対物レンズは清浄な状態に置かれ
、正確に情報の記録、再生ができることになる。
Therefore, the objective lens is kept clean at all times, and information can be accurately recorded and reproduced.

(実施例 ) 以下、本発明を図示の実施例に基いて具体的に説明する
。図において、符号1は対物レンズ2を含む光学系を搭
載したキャリッジで、装置フレーム10に設けられたガ
イドレールIIに摺動自在に支持されている。上記キャ
リッジIにはその一側に位置してリニア型のボイスコイ
ルモータのコイル(図示せず)が設けられており、上記
ガイトレール11に沿って設けられた磁気コア】2に対
応している。
(Examples) Hereinafter, the present invention will be specifically described based on illustrated examples. In the figure, reference numeral 1 denotes a carriage on which an optical system including an objective lens 2 is mounted, and is slidably supported on a guide rail II provided on an apparatus frame 10. A coil (not shown) of a linear voice coil motor is provided on one side of the carriage I, and corresponds to the magnetic core 2 provided along the guide rail 11.

上記キャリッジ1に対応して、−上記装置フレーム10
にはスピンドルモータ13が配設されていて、このスピ
ンドル軸にディスク状の記録媒体をセットすることがで
きるようにしである。そして、上記記録媒体の半径方向
に上記キャリッジlを移動することで、上記記録媒体に
対する光ヘッドのアクセスを実現できる。
Corresponding to said carriage 1 - said device frame 10;
A spindle motor 13 is disposed on the spindle shaft so that a disk-shaped recording medium can be set on the spindle shaft. By moving the carriage l in the radial direction of the recording medium, the optical head can access the recording medium.

上記キャリッジ】はホーム位置側の端部に押圧子1aを
取付けており、これに対応して、上記装置フレーム10
側には連動子3が枢支されている。上記連動子3には引
張スプリング7の一端が取付けてあり、上記スプリング
7の他端は上記装置フレームlOに取付けである。この
スプリング7で偏奇されている上記連動子3はその回動
位置を規制されるように上記装置フレーム10に設けら
れたストッパー8に当接されている。特に、この実施例
では上記連動子3は上記押圧子1aで押圧されるアーム
部3aを具備しており、またギヤ3bをその枢支部4の
回りに形成している。このギヤ3bには上記枢支部と並
列に一上記装置フレーム]0に枢支部6を設けたクリー
ニングレバー5がその枢支部回りのギヤ5bを噛合して
いる。上記クリーニングレバー5はその先端に板状の取
付は部5aを備え、そこに起毛状のクリーニング部材9
を取付けている。
The above-mentioned carriage] has a pusher 1a attached to the end on the home position side, and correspondingly, the above-mentioned device frame 10
An interlocking element 3 is pivotally supported on the side. One end of a tension spring 7 is attached to the interlocking element 3, and the other end of the spring 7 is attached to the apparatus frame IO. The interlocking element 3 biased by the spring 7 is brought into contact with a stopper 8 provided on the apparatus frame 10 so as to restrict its rotational position. Particularly, in this embodiment, the interlocking element 3 includes an arm part 3a that is pressed by the pressing element 1a, and a gear 3b is formed around the pivot part 4 thereof. A cleaning lever 5, which has a pivot part 6 on the device frame 0 in parallel with the pivot part, meshes with the gear 5b around the pivot part. The cleaning lever 5 has a plate-like attachment part 5a at its tip, and a brushed cleaning member 9 is attached thereto.
is installed.

なな、上記クリーニング部材9には柔らかい起毛状の繊
維束で構成される外、化学繊維などの織布あるいは不織
布を用いてもよい。
The cleaning member 9 may be made of a soft brushed fiber bundle, or may be made of woven or non-woven fabric such as chemical fiber.

このような構成では、上記キャリッジ1ががイドレール
l】に沿って移動し、ホーム位置に戻されるとき、その
押圧子1aで連動子3のアーム部を押して、これを上記
スプリング7に抗して回動し、上記クリーニングレバー
5を旋回する。その旋回で上記クリーニング部材9を上
記キャリッジ1上の対物レンズ2の表面に対して摺動さ
せ、掃拭する。また、上記キャリ・シジlがホーム位置
から移動するとき、上記押圧子1aがL記アーム部から
離れようとするが、この時、上記連動子3が上記スプリ
ング8の蓄勢力で追従して、上記クリーニングレバー5
を旋回し、クリーニング部材9による反対方向に向けて
の掃拭を行う。
In such a configuration, when the carriage 1 moves along the idle rail l and is returned to the home position, the pusher 1a pushes the arm portion of the interlocking element 3 and pushes it against the spring 7. The cleaning lever 5 is rotated. The rotation causes the cleaning member 9 to slide against the surface of the objective lens 2 on the carriage 1 and wipe it. Furthermore, when the carry shim l moves from the home position, the presser 1a tries to move away from the arm L, but at this time, the interlocking element 3 follows with the stored force of the spring 8. , the above cleaning lever 5
, and the cleaning member 9 sweeps in the opposite direction.

(発明の効果 ) 本発明は以上詳述したようになり、光ヘッドのキャリッ
ジの動きにつれて、そのホーム位置で対物レンズのクリ
ーニングが実現できる。このため、記録媒体へのアクセ
スの都度、効果的に対物レンズ表面から塵埃を除去でき
、これによって記録、再生を正確に維持できる。
(Effects of the Invention) The present invention has been described in detail above, and as the carriage of the optical head moves, cleaning of the objective lens can be realized at its home position. Therefore, dust can be effectively removed from the objective lens surface each time the recording medium is accessed, thereby maintaining accurate recording and reproduction.

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

第1図は本発明の一実施例を示す斜視図、第2図及び第
3図はその動作を説明する平面図である。 190.キャリッジ  211.対物レンズ311.連
動子 551.クリーニングレバー 911.クリーニング部材
FIG. 1 is a perspective view showing an embodiment of the present invention, and FIGS. 2 and 3 are plan views illustrating its operation. 190. Carriage 211. Objective lens 311. Interlocking child 551. Cleaning lever 911. cleaning parts

Claims (1)

【特許請求の範囲】[Claims] ディスク状の記録媒体に対物レンズを介して光ビームを
照射して、情報の記録、再生を行う光学式情報記録再生
装置において、その対物レンズをクリーニングするため
に、上記対物レンズを保持するキャリッジがホーム位置
に戻されるとき、及びそこから移動されるとき、上記対
物レンズの表面を掃拭するクリーニング部材をクリーニ
ングレバーに設け、上記クリーニングレバーを上記キャ
リッジに連動させたことを特徴とする光学式情報記録再
生装置における対物レンズクリーニング機構。
In an optical information recording and reproducing device that records and reproduces information by irradiating a light beam onto a disk-shaped recording medium through an objective lens, a carriage that holds the objective lens is used to clean the objective lens. Optical information, characterized in that a cleaning lever is provided with a cleaning member that wipes the surface of the objective lens when it is returned to a home position and when it is moved from there, and the cleaning lever is interlocked with the carriage. Objective lens cleaning mechanism in a recording/reproducing device.
JP2187145A 1990-07-17 1990-07-17 Objective lens cleaning mechanism in optical information recording / reproducing device Expired - Fee Related JP2735135B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2187145A JP2735135B2 (en) 1990-07-17 1990-07-17 Objective lens cleaning mechanism in optical information recording / reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2187145A JP2735135B2 (en) 1990-07-17 1990-07-17 Objective lens cleaning mechanism in optical information recording / reproducing device

Publications (2)

Publication Number Publication Date
JPH0474323A true JPH0474323A (en) 1992-03-09
JP2735135B2 JP2735135B2 (en) 1998-04-02

Family

ID=16200912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2187145A Expired - Fee Related JP2735135B2 (en) 1990-07-17 1990-07-17 Objective lens cleaning mechanism in optical information recording / reproducing device

Country Status (1)

Country Link
JP (1) JP2735135B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5467238A (en) * 1993-07-06 1995-11-14 Quantum Corporation Cleaning apparatus for heads of data storage disks
WO2006106819A1 (en) * 2005-03-31 2006-10-12 Pioneer Corporation Recording medium playback device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5467238A (en) * 1993-07-06 1995-11-14 Quantum Corporation Cleaning apparatus for heads of data storage disks
US5486970A (en) * 1993-07-06 1996-01-23 Quantum Corporation Cleaning apparatus for heads of data storage disks
WO2006106819A1 (en) * 2005-03-31 2006-10-12 Pioneer Corporation Recording medium playback device
JPWO2006106819A1 (en) * 2005-03-31 2008-11-20 パイオニア株式会社 Recording medium playback device

Also Published As

Publication number Publication date
JP2735135B2 (en) 1998-04-02

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