JPH0722735Y2 - Optical pickup device for disc player - Google Patents
Optical pickup device for disc playerInfo
- Publication number
- JPH0722735Y2 JPH0722735Y2 JP1987036488U JP3648887U JPH0722735Y2 JP H0722735 Y2 JPH0722735 Y2 JP H0722735Y2 JP 1987036488 U JP1987036488 U JP 1987036488U JP 3648887 U JP3648887 U JP 3648887U JP H0722735 Y2 JPH0722735 Y2 JP H0722735Y2
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- optical pickup
- disc
- chassis
- fixed
- 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 - Lifetime
Links
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Description
【考案の詳細な説明】 「産業上の利用分野」 本考案はターンテーブルに装着させたディスクを回転さ
せ、ディスク下方でこの直径方向に光ピックアップを移
動させ、ディスクの記録情報を読取り又は書込むディス
クプレヤーの光ピックアップ装置に関する。DETAILED DESCRIPTION OF THE INVENTION "Industrial application field" The present invention rotates a disc mounted on a turntable and moves an optical pickup in the diameter direction below the disc to read or write information recorded on the disc. The present invention relates to an optical pickup device for a disc player.
「従来の技術」 従来、特開昭59-223953号公報などに示す如く、光ピッ
クアップをこの基台に対して角度調整自在に設ける技術
があった。"Prior Art" Conventionally, as disclosed in Japanese Patent Laid-Open No. 59-223953, there has been a technology in which an optical pickup is provided on this base so that its angle can be freely adjusted.
「考案が解決しようとする問題点」 前記従来技術は、シャーシ上に設ける案内部材に光ピッ
クアップの基台を取付けた後、即ち光ピックアップを組
付け後にその角度調整は行うことができず、案内部材及
び基台などの微少な寸法誤差や組立て誤差が、光ピック
アップの読取り又は書込み機能に影響する問題があっ
た。[Problems to be Solved by the Invention] In the prior art, the angle cannot be adjusted after the optical pickup base is attached to the guide member provided on the chassis, that is, after the optical pickup is assembled. There has been a problem that a minute dimensional error and an assembly error of the members and the base affect the reading or writing function of the optical pickup.
「問題点を解決するための手段」 然るに、本考案は、光ピックアップを上面に固定する第
１基板と、シャーシ上に固定する案内部材に摺動自在に
支持する第２基板とを備え、前記第１基板を第２基板上
面側に配置すると共に、第１基板の略中央に形成する円
弧ガイド凸部を第２基板の略中央に形成する円弧ガイド
凹部に摺動自在に当接支持し、第１基板側部に孔を介し
調整ネジをディスク側から挿入し下端を第２基板に螺着
固定させると共に、第１基板側部に孔を介し保持ネジを
ディスク側から挿入し下端を第２基板に螺着固定させ、
その保持ネジに設ける圧縮バネにより第１基板を第２基
板に弾圧し、光ピックアップ組付け後に調整ネジにより
ディスクに対する角度調整を行うものである。[Means for Solving the Problems] Therefore, the present invention comprises a first substrate for fixing the optical pickup on the upper surface and a second substrate for slidably supporting a guide member fixed on the chassis. The first substrate is arranged on the upper surface side of the second substrate, and the arc guide convex portion formed substantially at the center of the first substrate slidably abuts and supports the arc guide concave portion formed at the substantially center of the second substrate. An adjusting screw is inserted from the disc side into the first substrate side portion through the hole and the lower end is screwed and fixed to the second substrate, and a holding screw is inserted from the disc side into the first substrate side portion through the hole and the lower end is moved into the second side. Screwed to the board,
The first substrate is elastically pressed against the second substrate by the compression spring provided on the holding screw, and the angle is adjusted with respect to the disc by the adjusting screw after the optical pickup is assembled.
「作用」 従って本考案によれば、光ピックアップ組付け後、案内
部材及び各基板などの微少な寸法誤差や組立て誤差によ
る、ディスクに対する光ピックアップの距離修正並びに
ディスクの中心線に対する光ピックアップの光照射点修
正を適正に行い得、記録情報の誤読並びに読取り不能な
どを発生させることなく光ピックアップの機能を充分に
発揮させ得るものである。[Operation] Therefore, according to the present invention, after the optical pickup is assembled, the distance of the optical pickup to the disc is corrected and the light is emitted from the optical pickup to the center line of the disc due to a slight dimensional error or assembly error of the guide member and each substrate. The point correction can be properly performed, and the function of the optical pickup can be sufficiently exerted without causing erroneous reading of recorded information and inability to read.
「実施例」 以下本考案の実施例を図面に基づいて説明する。第１図
は光ピックアップ部の説明図、第２図はディスクプレー
ヤの全体平面図であり、ディスクプレーヤキャビネット
（１）に内設するシャーシ（２）中央下面側にターンテ
ーブルモータ（３）を固設し、前記モータ（３）の出力
軸（４）をシャーシ（２）上面側に突出させて上端にタ
ーンテーブル（５）を設けると共に、ディスク（６）を
載せてターンテーブル（５）上に出入させるトレー
（７）を備え、前記トレー（７）一側のラックギヤ
（８）に噛合せるトレー出入ギヤ（９）をシャーシ
（２）上面に軸支させ、シャーシ（２）下面側に固設す
るトレーモータ（10）に前記ギヤ（９）を連動連結し、
シャーシ（２）上面にガイド（11）…を介しトレー
（７）を摺動自在に装着する。また前記ターンテーブル
（５）との間に前記ディスク（６）を挾持するチャック
板（12）を備え、チャックアーム（13）先端に前記チャ
ック板（12）を回転自在に取付け、板バネ（14）により
そのチャック板（12）を下方に弾圧すると共に、チャッ
クアーム（13）基端の軸（15）（15）をシャーシ（２）
上の軸受（16）（16）に上下に回転自在に固定させる。[Embodiment] An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory view of an optical pickup unit, and FIG. 2 is an overall plan view of a disc player, in which a turntable motor (3) is fixed to a lower surface of a center of a chassis (2) installed in a disc player cabinet (1). The output shaft (4) of the motor (3) is projected toward the upper surface of the chassis (2) to provide the turntable (5) at the upper end, and the disc (6) is placed on the turntable (5). A tray (7) for loading and unloading is provided, and a tray loading / unloading gear (9) that meshes with a rack gear (8) on one side of the tray (7) is pivotally supported on the upper surface of the chassis (2) and fixed to the lower surface side of the chassis (2). Connect the gear (9) to the tray motor (10)
The tray (7) is slidably mounted on the upper surface of the chassis (2) through the guides (11). Further, a chuck plate (12) for holding the disk (6) between the turntable (5) is provided, and the chuck plate (12) is rotatably attached to the tip of the chuck arm (13), and a leaf spring (14) is provided. ), The chuck plate (12) is pressed downward, and the shafts (15) (15) at the base end of the chuck arm (13) are attached to the chassis (2).
It is fixed to the upper bearings (16) (16) rotatably up and down.
また前記ディスク（６）の情報を読取る光ピックアップ
（17）を備え、シャーシ（２）上に軸受（18）（18）を
介しガイドシャフト（19）を横架すると共に、前記シャ
フト（19）と略平行にガイド板（20）をシャーシ（２）
上面に張架させ、光ピックアップ移動案内部材である前
記シャフト（19）及びガイド板（20）に後述する光ピッ
クアップ角度調整機構（21）を介し摺動自在に支持さ
せ、そしてラックギヤ（22）の一端を前記調整機構（2
1）に固設させる一方、シャーシ（２）下面側に光ピッ
クアップモータ（23）を固設し、前記モータ（23）の出
力軸（24）をシャーシ（２）上面側に突出させ、その出
力軸（24）に上方からウォームギヤ（25）を嵌合させる
と共に、シャーシ（２）上面側に軸受（26）（26）を介
して減速ギヤ（27）を設け、前記ギヤ（27）の大径側を
ウォームギヤ（25）に、また小径側をラックギヤ（22）
にそれぞれ噛合せ、前記モータ（22）の正逆転により光
ピックアップ（17）をターンテーブル（５）に対し放射
方向に接離つまりディスク（６）下面でその直径方向に
往復移動させるように構成している。Further, an optical pickup (17) for reading the information of the disc (6) is provided, and a guide shaft (19) is horizontally mounted on the chassis (2) via bearings (18) (18) and at the same time as the shaft (19). Guide plate (20) and chassis (2) almost parallel
It is stretched on the upper surface, slidably supported on the shaft (19) and the guide plate (20) which are optical guide movement guide members through an optical pickup angle adjusting mechanism (21) described later, and the rack gear (22) One end is the adjustment mechanism (2
While fixed to 1), the optical pickup motor (23) is fixed to the lower surface side of the chassis (2), and the output shaft (24) of the motor (23) is projected to the upper surface side of the chassis (2) to output the output. A worm gear (25) is fitted to the shaft (24) from above, and a reduction gear (27) is provided on the upper surface side of the chassis (2) via bearings (26) (26), so that the gear (27) has a large diameter. Side to worm gear (25), small diameter side to rack gear (22)
And the optical pickup (17) is moved toward and away from the turntable (5) in the radial direction by the forward and reverse rotation of the motor (22). ing.
そして第１図に示す如く前記光ピックアップ角度調整機
構（21）は、光ピックアップ（17）を上面に固定させる
第１基板（28）と、前記ガイドシャフト（19）とガイド
板（20）間に張設する第２基板（29）と、角度調整ネジ
（30）並びに位置保持ネジ（31）とで構成し、前記第２
基板（29）の一側を軸受（32）（32）を介しガイドシャ
フト（19）に、また他側を形折曲側縁（29a）を介しガ
イド板（20）上面にそれぞれ摺動自在に支持させると共
に、この第２基板（29）に前記ラックギヤ（22）を固定
させる。一方第１基板（28）を前記第２基板（29）の上
面側に配設し、第１基板（28）略中央に形成する円弧ガ
イド凸部（33）を、第２基板（29）略中央に形成する円
弧ガイド凹部（34）に摺動自在に当接支持させる。さら
にガイド板（20）側の第１基板（28）側部に孔（35）を
介し前記調整ネジ（30）を上方即ちディスク（６）側か
ら挿入し下端を第２基板（29）に螺着固定させると共
に、シャフト（19）側の第１基板（28）側部に孔（36）
を介し前記保持ネジ（31）を上方即ちディスク（６）側
から挿入し下端を第２基板（29）に螺着固定させ、その
保持ネジ（31）に設ける圧縮バネ（37）により第１基板
（28）を第２基板（29）に弾圧し、光ピックアップ（1
7）組付け後に調整ネジ（30）によりディスク（６）に
対する角度調整を行うように構成している。Then, as shown in FIG. 1, the optical pickup angle adjusting mechanism (21) is provided between the first substrate (28) for fixing the optical pickup (17) on the upper surface, the guide shaft (19) and the guide plate (20). The second substrate (29) stretched, the angle adjusting screw (30) and the position holding screw (31),
One side of the board (29) is slidable on the guide shaft (19) via the bearings (32) (32), and the other side is slidable on the upper surface of the guide plate (20) via the bent side edge (29a). The rack gear (22) is supported and fixed to the second substrate (29). On the other hand, the first substrate (28) is disposed on the upper surface side of the second substrate (29), and the arc guide convex portion (33) formed substantially at the center of the first substrate (28) is formed on the second substrate (29). A circular arc guide recess (34) formed in the center is slidably abutted and supported. Further, the adjusting screw (30) is inserted into the side of the first board (28) on the side of the guide plate (20) through the hole (35) from above, that is, the disk (6) side, and the lower end is screwed into the second board (29). The holes (36) are attached to the shaft (19) side of the first substrate (28).
The holding screw (31) is inserted from above, that is, from the side of the disk (6), the lower end is screwed and fixed to the second substrate (29), and the compression spring (37) provided on the holding screw (31) causes the first substrate. (28) is pressed against the second substrate (29) and the optical pickup (1
7) The angle is adjusted with respect to the disc (6) by the adjusting screw (30) after assembling.
ところで、前記円弧ガイド凸部（33）及び凹部（34）
は、光ピックアップ（17）上面の照射窓（17a）からデ
ィスク（６）の情報記録面に照射される光のディスク受
光点（Ｃ）を中心とする円周上に形成され、第２基板
（29）に対し第１基板（28）をネジ（30）の螺出入操作
によって揺動させるとき、前記受光点（Ｃ）を中心に光
ピックアップ（17）を角度調整するように構成してい
る。By the way, the arc guide convex portion (33) and concave portion (34)
Is formed on the circumference around the disc light receiving point (C) of the light emitted from the irradiation window (17a) on the upper surface of the optical pickup (17) to the information recording surface of the disc (6). In contrast to 29), when the first substrate (28) is swung by the screwing operation of the screw (30), the angle of the optical pickup (17) is adjusted around the light receiving point (C).
本実施例は上記の如く構成しており、トレー出入モータ
（10）制御によりトレー（７）を出入操作してターンテ
ーブル（５）とチャック板（12）間にディスク（６）を
装着し、ターンテーブルモータ（３）によりテーブル
（５）を回転させると共に、各ギヤ（22）（25）（27）
を介して光ピックアップモータ（23）により光ピックア
ップ角度調整機構（21）を一体的に往復移動させ、ディ
スク（６）下面でこの直径方向に光ピックアップ（17）
を直線移動させ、光ピックアップ（17）の照射窓（17
a）から光をディスク（６）に照射し、そのディスク
（６）の記録情報を読取って再生するものである。This embodiment is configured as described above, and the tray (7) is moved in and out by controlling the tray loading / unloading motor (10) to mount the disc (6) between the turntable (5) and the chuck plate (12). The table (5) is rotated by the turntable motor (3) and each gear (22) (25) (27) is rotated.
The optical pickup angle adjusting mechanism (21) is integrally reciprocally moved by the optical pickup motor (23) via the optical pickup motor (23), and the optical pickup (17) is moved in the diameter direction on the lower surface of the disc (6).
Linearly move the irradiation window (17) of the optical pickup (17).
The disc (6) is irradiated with light from a), and the recorded information on the disc (6) is read and reproduced.
また、ディスクプレーヤの組立て工場において光ピック
アップ（17）組付け後そのディスク（６）に対し光ピッ
クアップ（17）角度調整を行うもので、調整ネジ（30）
を右或いは左に回し、円弧ガイド凸部（33）及び円弧ガ
イド凹部（34）を介して第２基板（29）に対し第１基板
（28）を左右に揺動させ、ディスク受光点（Ｃ）を中心
とする角度調整を行わせるもので、ディスク（６）と光
ピックアップ（17）の照射窓（17a）との距離を一定維
持し、しかもディスク（６）の中心線上に前記照射窓
（17a）の中心を一致させた理想的な状態で、光ピック
アップ（17）をディスク（６）に対し位置保持して移動
させることができる。In addition, after the optical pickup (17) is assembled in the disc player assembly factory, the angle of the optical pickup (17) is adjusted with respect to the disc (6). The adjustment screw (30)
To the right or left to swing the first substrate (28) left and right with respect to the second substrate (29) through the arc guide convex portion (33) and the arc guide concave portion (34), and the disc light receiving point (C ) Is used to adjust the angle, the distance between the disc (6) and the irradiation window (17a) of the optical pickup (17) is kept constant, and the irradiation window (7a) is placed on the center line of the disc (6). The optical pickup (17) can be moved while holding its position with respect to the disc (6) in an ideal state where the centers of 17a) are aligned.
「考案の効果」 以上実施例から明らかなように本考案は、光ピックアッ
プ（17）を上面に固定する第１基板（28）と、シャーシ
（２）上に固定する案内部材（19）（20）に摺動自在に
支持する第２基板（29）とを備え、前記第１基板（28）
を第２基板（29）上面側に配置すると共に、第１基板
（28）の略中央に形成する円弧ガイド凸部（33）を第２
基板（29）の略中央に形成する円弧ガイド凹部（34）に
摺動自在に当接支持し、第１基板（28）側部に孔（35）
を介し調整ネジ（30）をディスク（６）側から挿入し下
端を第２基板（29）に螺着固定させると共に、第１基板
（28）側部に孔（36）を介し保持ネジ（31）をディスク
（６）側から挿入し下端を第２基板（29）に螺着固定さ
せ、その保持ネジ（31）に設ける圧縮バネ（37）により
第１基板（28）を第２基板（29）に弾圧し、光ピックア
ップ（17）組付け後に調整ネジ（30）によりディスク
（６）に対する角度調整を行うもので、光ピックアップ
（17）組付け後、案内部材（19）（20）及び各基板（2
8）（29）などの微少な寸法誤差や組立て誤差による、
ディスク（６）に対する光ピックアップ（17）の距離修
正並びにディスク（６）の中心線に対する光ピックアッ
プ（17）の光照射点修正を適正に行うことができ、記録
情報の誤読並びに読取り不能などを発生させることなく
光ピックアップの機能を充分に発揮させることができる
顕著な効果を奏するものである。[Advantages of the Invention] As is apparent from the embodiments described above, the present invention provides the first substrate (28) for fixing the optical pickup (17) on the upper surface and the guide members (19) (20) for fixing on the chassis (2). ) And a second substrate (29) slidably supported on the first substrate (28).
Is disposed on the upper surface side of the second substrate (29), and the arc guide convex portion (33) formed in the approximate center of the first substrate (28)
The base plate (29) is slidably abutted and supported in a circular arc guide recess (34) formed substantially in the center of the base plate (29), and a hole (35) is formed in the side part of the first base plate (28).
The adjusting screw (30) is inserted from the disk (6) side through the screw to fix the lower end to the second substrate (29) by screwing, and the holding screw (31) is provided on the side of the first substrate (28) through the hole (36). ) Is inserted from the disc (6) side, the lower end is screwed and fixed to the second substrate (29), and the first substrate (28) is moved to the second substrate (29) by the compression spring (37) provided to the holding screw (31). ), The angle is adjusted with respect to the disc (6) by the adjusting screw (30) after the optical pickup (17) is assembled. After the optical pickup (17) is assembled, the guide members (19) (20) and each Board (2
8) Due to minute dimensional errors such as (29) and assembly errors,
It is possible to properly correct the distance of the optical pickup (17) to the disc (6) and correct the light irradiation point of the optical pickup (17) to the center line of the disc (6), resulting in erroneous reading of recorded information and inability to read. It has a remarkable effect that the function of the optical pickup can be fully exerted without causing it.
第１図はピックアップ部の説明図、第２図はディスクプ
レーヤの全体平面図である。 （５）……ターンテーブル （６）……ディスク （17）……光ピックアップ （19）……ガイドシャフト（移動案内部材） （20）……ガイド板（移動案内部材） （21）……光ピックアップ角度調整機構 （28）……第１基板 （29）……第２基板 （33）……円弧ガイド凸部 （34）……円弧ガイド凹部 （30）……調整ネジ （31）……保持ネジ （37）……圧縮バネFIG. 1 is an explanatory view of a pickup section, and FIG. 2 is an overall plan view of a disc player. (5) …… Turntable (6) …… Disc (17) …… Optical pickup (19) …… Guide shaft (movement guide member) (20) …… Guide plate (movement guide member) (21) …… Optical Pick-up angle adjustment mechanism (28) …… First substrate (29) …… Second substrate (33) …… Arc guide convex part (34) …… Arc guide concave part (30) …… Adjustment screw (31) …… Holding Screw (37) …… Compression spring
Claims (1)
１基板（28）と、シャーシ（２）上に固定する案内部材
（19）（20）に摺動自在に支持する第２基板（29）とを
備え、前記第１基板（28）を第２基板（29）上面側に配
置すると共に、第１基板（28）の略中央に形成する円弧
ガイド凸部（33）を第２基板（29）の略中央に形成する
円弧ガイド凹部（34）に摺動自在に当接支持し、第１基
板（28）側部に孔（35）を介し調整ネジ（30）をディス
ク（６）側から挿入し下端を第２基板（29）に螺着固定
させると共に、第１基板（28）側部に孔（36）を介し保
持ネジ（31）をディスク（６）側から挿入し下端を第２
基板（29）に螺着固定させ、その保持ネジ（31）に設け
る圧縮バネ（37）により第１基板（28）を第２基板（2
9）に弾圧し、光ピックアップ（17）組付け後に調整ネ
ジ（30）によりディスク（６）に対する角度調整を行う
ことを特徴とするディスクプレーヤの光ピックアップ装
置。1. A first substrate (28) for fixing an optical pickup (17) on an upper surface and a second substrate (slidably supported by guide members (19, 20) fixed on a chassis (2). 29), the first substrate (28) is disposed on the upper surface side of the second substrate (29), and an arc guide convex portion (33) formed substantially at the center of the first substrate (28) is formed on the second substrate. It is slidably abutted and supported in an arc guide recess (34) formed in the approximate center of (29), and an adjusting screw (30) is attached to the side of the first substrate (28) through a hole (35) and a disc (6). Side, the lower end is screwed and fixed to the second substrate (29), and the holding screw (31) is inserted from the disc (6) side through the hole (36) in the side portion of the first substrate (28) to lower the lower end. Second
The first substrate (28) is screwed and fixed to the substrate (29), and the first spring (37) is provided on the holding screw (31) of the second substrate (2).
An optical pickup device for a disc player, characterized in that the angle is adjusted with respect to the disc (6) by an adjusting screw (30) after the optical pickup (17) is attached to the optical pickup (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987036488U JPH0722735Y2 (en) | 1987-03-12 | 1987-03-12 | Optical pickup device for disc player |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987036488U JPH0722735Y2 (en) | 1987-03-12 | 1987-03-12 | Optical pickup device for disc player |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63146307U JPS63146307U (en) | 1988-09-27 |
| JPH0722735Y2 true JPH0722735Y2 (en) | 1995-05-24 |
Family
ID=30846935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987036488U Expired - Lifetime JPH0722735Y2 (en) | 1987-03-12 | 1987-03-12 | Optical pickup device for disc player |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0722735Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59223953A (en) * | 1983-06-03 | 1984-12-15 | Matsushita Electric Ind Co Ltd | Optical pickup |
-
1987
- 1987-03-12 JP JP1987036488U patent/JPH0722735Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63146307U (en) | 1988-09-27 |
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