JPH09306116A - Tilt adjusting device for pickup of disk player - Google Patents
Tilt adjusting device for pickup of disk playerInfo
- Publication number
- JPH09306116A JPH09306116A JP8205081A JP20508196A JPH09306116A JP H09306116 A JPH09306116 A JP H09306116A JP 8205081 A JP8205081 A JP 8205081A JP 20508196 A JP20508196 A JP 20508196A JP H09306116 A JPH09306116 A JP H09306116A
- Authority
- JP
- Japan
- Prior art keywords
- pickup
- guide shaft
- disk
- adjusting device
- deck
- 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
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
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble
- G11B7/0956—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Moving Of Heads (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は光記録再生用のディ
スクプレーヤにおいて、ディスクに対してピックアップ
が水平を保ち得るようにピックアップの傾斜を微細調整
し得るピックアップの傾斜調整装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pickup tilt adjusting device capable of finely adjusting the tilt of a pickup so as to keep the pickup horizontal with respect to a disc in a disc player for optical recording and reproduction.
【０００２】[0002]
【従来の技術】ＣＤＰ（コンパクトディスクプレーヤ）
やＬＤＰ（レーザディスクプレーヤ)及びＤＶＤＰ（デ
ジタルビデオディスクプレーヤ) などのディスクプレー
ヤにおいては、ピックアップから放出されるレーザビー
ムがディスクに垂直に入射されるように、ピックアップ
がディスクに対して水平状態を保つべきである。2. Description of the Related Art CDP (Compact Disc Player)
, LDP (laser disk player), DVDP (digital video disk player) and other disk players, the pickup keeps a horizontal state with respect to the disk so that the laser beam emitted from the pickup is perpendicularly incident on the disk. Should.
【０００３】図１には一般的なディスクプレーヤが示さ
れている。図１に示したように、ディスク（図示せず）
の安着されるターンテーブル１と、ピックアップを３を
支持する一対のガイドシャフト２がデッキ４上に設けら
れている。ピックアップ３の側面には駆動モータ６によ
り駆動される螺子軸５と噛み合うギヤ部（図示せず）が
形成されている。FIG. 1 shows a general disc player. As shown in FIG. 1, a disc (not shown)
A pair of guide shafts 2 for supporting a turntable 1 and a pickup 3 are provided on a deck 4. A gear (not shown) is formed on a side surface of the pickup 3 so as to mesh with the screw shaft 5 driven by the drive motor 6.
【０００４】前記のような構造を有するディスクプレー
ヤの動作において、駆動モータ６が回転すると螺子軸５
が回転され、該螺子軸５の回転によりピックアップ３が
前記ガイドシャフト２上で滑ることによってディスクの
半径方向に移動しながら、ディスクに記録された情報を
再生する。ディスクから情報を再生する時、ピックアッ
プ３から放出されたレーザビームはディスクの望む地点
に垂直に入射されるべきである。しかし、一般的にピッ
クアップ３とディスクとの間にはフォーカシングエラ
ー、ディスクから反射されるレーザビームに対する傾斜
エラーなどによりピックアップエラーを誘発する。フォ
ーカシングエラーはディスクとピックアップ３との距離
によりレーザビームの焦点が正確にディスクに収斂しな
い時に発生し、傾斜エラーはピックアップ３がディスク
に対して半径方向又は接線方向に傾くことから発生す
る。このようなエラーはピックアップ３のフォーカシン
グ及びトラッキングサーボメカニズムによりある程度補
償できるが、組立過程で前記ピックアップ３を支持する
ガイドシャフト２が固定部７によりデッキにしっかり結
合されるので完全な補償には限りがある。特に、組立精
度が低く、組立の公差が大きい場合は前記エラーの補正
が不可能となる。In the operation of the disk player having the above structure, when the drive motor 6 rotates, the screw shaft 5 is rotated.
Is rotated, and the pickup 3 slides on the guide shaft 2 by the rotation of the screw shaft 5 to move in the radial direction of the disc and reproduce the information recorded on the disc. When reproducing information from the disk, the laser beam emitted from the pickup 3 should be vertically incident on a desired point on the disk. However, generally, a pickup error is induced between the pickup 3 and the disc due to a focusing error, a tilt error with respect to a laser beam reflected from the disc, and the like. The focusing error occurs when the focal point of the laser beam does not accurately converge on the disk due to the distance between the disk and the pickup 3, and the tilt error occurs when the pickup 3 tilts radially or tangentially to the disk. Such an error can be compensated to some extent by the focusing and tracking servo mechanism of the pickup 3, but since the guide shaft 2 supporting the pickup 3 is firmly connected to the deck by the fixing portion 7 during the assembling process, the complete compensation is limited. is there. In particular, when the assembly accuracy is low and the assembly tolerance is large, the error cannot be corrected.
【０００５】[0005]
【発明が解決しようとする課題】本発明は前記の問題点
を解決するために、ディスクの半径方向の傾斜エラーを
補正するためにディスクに対するピックアップの傾斜を
精密に調整し得るディスクプレーヤのピックアップの傾
斜調整装置を提供することにその目的がある。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a pickup for a disk player which can precisely adjust the tilt of the pickup with respect to the disk in order to correct a radial tilt error of the disk. It is an object to provide a tilt adjustment device.
【０００６】[0006]
【課題を解決するための手段】前記の目的を達成するた
めに本発明は、ピックアップを支持及びガイドする少な
くとも一対のシャフトがその上部に設けられ、螺子孔及
びロッキング溝の形成されたデッキと、前記螺子孔に螺
合されて前記ガイドシャフトの一端の底面と接触して回
転方向によって前記ガイドシャフトを乗降させるスクリ
ューと、一端が前記ロッキング溝に挿着され、他端が前
記ガイドシャフトの上面と接触して支持され、前記ガイ
ドシャフトを下方に付勢させる弾性部材とを含むことを
特徴とする。In order to achieve the above object, the present invention provides a deck provided with at least a pair of shafts for supporting and guiding a pickup, the deck having screw holes and locking grooves. A screw that is screwed into the screw hole and comes into contact with the bottom surface of one end of the guide shaft to mount and dismount the guide shaft according to the rotation direction, one end of which is inserted into the locking groove and the other end of which is an upper surface of the guide shaft. And an elastic member that is supported in contact with the guide shaft and biases the guide shaft downward.
【０００７】[0007]
【発明の実施の形態】以下、添付した図面に基づき本発
明を詳細に説明する。図２は本発明のピックアップの傾
斜調整装置を有するディスクプレーヤを示す。ここで、
図１と同一の参照符号は同一部材を示す。図２を参照す
れば、ガイドシャフト２の一端はホルダ１１，１２によ
りデッキ４上に固定される。さらに、前記ガイドシャフ
ト２の他端には本発明によるピックアップの傾斜調整装
置が備えられる。前記ピックアップの傾斜調整装置は前
記ガイドシャフト２を弾性的に支持する弾性部材１３，
１４と、前記ガイドシャフト２の両側面に密着されてガ
イドシャフト２を支持する支持部材１５ａ，１５ｂ，１
５ｃ，１５ｄとを含むが、この詳細な構成を図３及び図
４に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. FIG. 2 shows a disc player having the tilt adjusting device for a pickup of the present invention. here,
The same reference numerals as those in FIG. 1 indicate the same members. Referring to FIG. 2, one end of the guide shaft 2 is fixed on the deck 4 by holders 11 and 12. Further, the other end of the guide shaft 2 is provided with a tilt adjusting device for a pickup according to the present invention. The tilt adjusting device of the pickup includes an elastic member 13 for elastically supporting the guide shaft 2,
14 and supporting members 15a, 15b, 1 which are in close contact with both side surfaces of the guide shaft 2 and support the guide shaft 2.
5c and 15d, the detailed configuration of which will be described with reference to FIGS.
【０００８】図３及び図４に示したように、ガイドシャ
フト２は支持部材１５ｃ、１５ｄにより支持されてその
一端がデッキ４に形成された螺子孔１６上に載置され
る。前記螺子孔１６にはスクリュー１７が螺合されて前
記ガイドシャフト２の一端の底面に接触する。さらに、
前記デッキ４上の螺子孔１６の側方には弾性部材１４の
挿入されるロッキング溝１８が形成されている。前記弾
性部材１４の一端には前記ロッキング溝１８に挿入され
て係止される突起１４ｂが形成され、その他端には前記
ガイドシャフト２を下方に付勢させる曲面部１４ａが形
成されている。ここで、前記弾性部材１３，１４（図
２）は板ばねより構成することが好ましい。As shown in FIGS. 3 and 4, the guide shaft 2 is supported by support members 15c and 15d, and one end of the guide shaft 2 is placed on a screw hole 16 formed in the deck 4. A screw 17 is screwed into the screw hole 16 and contacts the bottom surface of one end of the guide shaft 2. further,
On the side of the screw hole 16 on the deck 4, a locking groove 18 into which the elastic member 14 is inserted is formed. At one end of the elastic member 14, there is formed a projection 14b which is inserted into and locked by the locking groove 18, and at the other end, a curved surface portion 14a for urging the guide shaft 2 downward is formed. Here, it is preferable that the elastic members 13 and 14 (FIG. 2) are constituted by leaf springs.
【０００９】前記のような構造を有するピックアップの
傾斜調整装置の動作を図２乃至図４を参照して説明すれ
ば、ピックアップ３（図２）の傾斜を調整する必要があ
る時、前記スクリュー１７を時計方向又は半時計方向に
回転させると、前記スクリュー１７の上昇又は下降によ
って、そのスクリュー１７と接触している前記ガイドシ
ャフト２が垂直方向に移動する。従って、前記ガイドシ
ャフト２により支持されるピックアップ３も乗降される
ことによってその傾斜が調整される。The operation of the tilt adjusting device having the above-mentioned structure will be described with reference to FIGS. 2 to 4. When it is necessary to adjust the tilt of the pickup 3 (FIG. 2), the screw 17 is used. When the screw 17 is rotated clockwise or counterclockwise, the guide shaft 2 in contact with the screw 17 moves in the vertical direction as the screw 17 moves up or down. Therefore, the inclination of the pickup 3 supported by the guide shaft 2 is adjusted by getting on and off.
【００１０】この際、前記弾性部材１３，１４はガイド
シャフト２を支持する上でスクリュー１７の締結力に対
して逆弾性力を提供する。At this time, the elastic members 13 and 14 provide a reverse elastic force to the fastening force of the screw 17 in supporting the guide shaft 2.
【００１１】[0011]
【発明の効果】前述したように、本発明によるディスク
プレーヤのピックアップの傾斜調整装置はターンテーブ
ル上で回転するディスクとピックアップとの平行度を高
精度に保つことによって、フォーカシング及びトラッキ
ングサーボの信頼性を向上させ、且つディスクプレーヤ
の再生効率を上げ得る。As described above, the tilt adjusting device for the pickup of the disk player according to the present invention maintains the parallelism between the disk rotating on the turntable and the pickup with high accuracy, thereby improving the reliability of the focusing and tracking servo. And the reproduction efficiency of the disc player can be increased.
【００１２】本発明はこれに限定されず、特許請求の範
囲内でより多様な変形が可能なことは無論である。The present invention is not limited to this, and it goes without saying that more various modifications are possible within the scope of the claims.
【図面の簡単な説明】[Brief description of drawings]
【図１】通常的なディスクプレーヤの概略的な斜視図で
ある。FIG. 1 is a schematic perspective view of a general disc player.
【図２】本発明によるピックアップの傾斜調整装置を有
するディスクプレーヤの概略的な平面図である。FIG. 2 is a schematic plan view of a disc player having a tilt adjusting device for a pickup according to the present invention.
【図３】本発明によるピックアップの傾斜調整装置の分
解斜視図である。FIG. 3 is an exploded perspective view of the tilt adjusting device of the pickup according to the present invention.
【図４】本発明によるピックアップの傾斜調整装置の組
立断面図である。FIG. 4 is an assembled sectional view of the tilt adjusting device of the pickup according to the present invention;
１ ターンテーブル ２ ガイドシャフト ３ ピックアップ ４ デッキ １１，１２ ホルダ １３，１４ 弾性部材 １４ａ 曲面部 １４ｂ 突起 １５ａ，１５ｂ，１５ｃ，１５ｄ 支持部材 １６ 螺子孔 １７ スクリュー １８ ロッキング溝 DESCRIPTION OF SYMBOLS 1 Turntable 2 Guide shaft 3 Pickup 4 Deck 11,12 Holder 13,14 Elastic member 14a Curved surface part 14b Projection 15a, 15b, 15c, 15d Support member 16 Screw hole 17 Screw 18 Locking groove
Claims (2)
くとも一対のガイドシャフトがその上部に設けられ、螺
子孔及びロッキング溝の形成されたデッキと、 前記螺子孔に螺合されて前記ガイドシャフトの一端の底
面と接触して回転方向によって前記ガイドシャフトを乗
降させるスクリューと、 一端が前記ロッキング溝に挿着され、他端が前記ガイド
シャフトの上面と接触して支持され、前記ガイドシャフ
トを下方に付勢させる弾性部材とを含むことを特徴とす
るディスクプレーヤのピックアップの傾斜調整装置。1. A deck having at least a pair of guide shafts for supporting and guiding a pickup, the deck having a screw hole and a locking groove, and a bottom surface of one end of the guide shaft screwed into the screw hole. A screw which comes into contact with the guide shaft and moves on and off the guide shaft according to a rotation direction, one end of which is inserted into the locking groove and the other end of which is supported by being in contact with an upper surface of the guide shaft and biasing the guide shaft downward. An inclination adjusting device for a pickup of a disc player, comprising: an elastic member.
れぞれ密着され、前記ガイドシャフトを支持する支持部
材をさらに含むことを特徴とする請求項１に記載のディ
スクプレーヤのピックアップの傾斜調整装置。2. The tilt adjusting device for a pickup of a disc player according to claim 1, further comprising a supporting member that is in close contact with both side surfaces of the pair of guide shafts and supports the guide shafts.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR16954/1996 | 1996-05-20 | ||
| KR1019960016954A KR100189913B1 (en) | 1996-05-20 | 1996-05-20 | Pickup tilt adjusting device for disc player |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09306116A true JPH09306116A (en) | 1997-11-28 |
| JP2793176B2 JP2793176B2 (en) | 1998-09-03 |
Family
ID=19459178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8205081A Expired - Fee Related JP2793176B2 (en) | 1996-05-20 | 1996-08-02 | Disc player pickup tilt adjustment device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2793176B2 (en) |
| KR (1) | KR100189913B1 (en) |
| CN (1) | CN1085370C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6137765A (en) * | 1997-11-28 | 2000-10-24 | Victor Company Of Japan, Ltd. | Optical disc drive apparatus with inclination angle correcting mechanism |
| US6414934B1 (en) * | 1998-02-06 | 2002-07-02 | Teac Corporation | Pickup adjusting mechanism |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100497855B1 (en) * | 1997-10-27 | 2005-09-16 | 엘지전자 주식회사 | Pick-up tilt control device for optical disc player |
| KR100439977B1 (en) * | 2001-12-07 | 2004-07-12 | 삼성전기주식회사 | Optical pick-up control apparatus and optical write and read apparatus comprising thereof |
| KR100438581B1 (en) * | 2001-12-17 | 2004-07-02 | 엘지전자 주식회사 | Tilt control apparatus of optical recoder |
| DE10358254A1 (en) * | 2003-12-11 | 2005-07-14 | Deutsche Thomson-Brandt Gmbh | An optical record carrier recording and / or reproducing apparatus comprising means for aligning the scanner in parallel with the surface of the record carrier |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6329230U (en) * | 1986-08-12 | 1988-02-26 | ||
| JPH0276367U (en) * | 1988-11-30 | 1990-06-12 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01211248A (en) * | 1988-02-17 | 1989-08-24 | Sanyo Electric Co Ltd | Tilt adjusting mechanism for optical disk player |
| JPH06195736A (en) * | 1992-11-06 | 1994-07-15 | Goldstar Alps Electron Co Ltd | Optical-disk player |
-
1996
- 1996-05-20 KR KR1019960016954A patent/KR100189913B1/en not_active IP Right Cessation
- 1996-07-22 CN CN96109943A patent/CN1085370C/en not_active Expired - Fee Related
- 1996-08-02 JP JP8205081A patent/JP2793176B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6329230U (en) * | 1986-08-12 | 1988-02-26 | ||
| JPH0276367U (en) * | 1988-11-30 | 1990-06-12 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6137765A (en) * | 1997-11-28 | 2000-10-24 | Victor Company Of Japan, Ltd. | Optical disc drive apparatus with inclination angle correcting mechanism |
| US6414934B1 (en) * | 1998-02-06 | 2002-07-02 | Teac Corporation | Pickup adjusting mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100189913B1 (en) | 1999-06-01 |
| CN1085370C (en) | 2002-05-22 |
| CN1166026A (en) | 1997-11-26 |
| JP2793176B2 (en) | 1998-09-03 |
| KR970076578A (en) | 1997-12-12 |
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