JPH0255418U - - Google Patents
Info
- Publication number
- JPH0255418U JPH0255418U JP13306188U JP13306188U JPH0255418U JP H0255418 U JPH0255418 U JP H0255418U JP 13306188 U JP13306188 U JP 13306188U JP 13306188 U JP13306188 U JP 13306188U JP H0255418 U JPH0255418 U JP H0255418U
- Authority
- JP
- Japan
- Prior art keywords
- guide member
- servo mechanism
- tilt servo
- guide
- optical pickup
- 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
Links
- 230000003287 optical effect Effects 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図は本考案の実施例としてのチルトサーボ
機構を含む光デイスクプレーヤの要部の一部断面
を含む正面図、第２図ないし第５図は当該チルト
サーボ機構の各々正面図、平面図、側面図及び拡
散分解斜視図、第６図は第１図ないし第５図に示
したチルトサーボ機構の動作を説明するための図
、第７図及び第８図は従来のチルトサーボ機構を
示す図である。
主要部分の符号の説明、２１……デイスク、２
３……ターンテーブル、２６……スライドベース
、２７……ガイドシヤフト、２９……チルトユニ
ツトベース、３０……ハイトスライドシヤフト、
３１……ローラガイド、３２ａ，３２ｂ……ロー
ラ、３３……ピツクアツプベース、３６……ケー
ス、３７……対物レンズ、３９……移動プレート
、４１……カム部材、４３，４５……モータ、５
０……タンジエンシヤル調整ネジ、５１……シヤ
ーシ。
FIG. 1 is a front view including a partial cross section of the main parts of an optical disk player including a tilt servo mechanism as an embodiment of the present invention, and FIGS. 2 to 5 are a front view, a top view, and a side view of the tilt servo mechanism, respectively. FIG. 6 is a diagram for explaining the operation of the tilt servo mechanism shown in FIGS. 1 to 5, and FIGS. 7 and 8 are diagrams showing a conventional tilt servo mechanism. Explanation of symbols of main parts, 21...Disk, 2
3... Turntable, 26... Slide base, 27... Guide shaft, 29... Tilt unit base, 30... Height slide shaft,
31... Roller guide, 32a, 32b... Roller, 33... Pickup base, 36... Case, 37... Objective lens, 39... Moving plate, 41... Cam member, 43, 45... Motor, 5
0... Tangential adjustment screw, 51... Chassis.
Claims (1)
径方向において案内される担持部材に担持された
光学式ピツクアツプのチルトサーボ機構であつて
、前記ターンテーブルの回転中心に略平行な平面
内において前記光学式ピツクアツプを案内する円
弧状案内路を形成する案内機構と、前記光学式ピ
ツクアツプを移動せしめる駆動手段とから成るこ
とを特徴とするチルトサーボ機構。 (2) 前記円弧状案内路の曲率の中心が前記ター
ンテーブルのデイスク担持面近傍にあることを特
徴とする請求項１記載のチルトサーボ機構。 (3) 前記案内機構は前記担持部材及び光学式ピ
ツクアツプのいずれか一方に取り付けられた円弧
状第１案内部材と、前記一方に対する他方に設け
られて前記第１案内部材と前記第１案内部材の円
弧に沿つて相対的に移動自在に係合する第２案内
部材とから成ることを特徴とする請求項１又は２
記載のチルトサーボ機構。 (4) 前記第２案内部材は前記円弧状第１案内部
材の一側端部に当接した少なくとも２つのローラ
と、他側端部に当接した少なくとも１つのローラ
とから成ることを特徴とする請求項３記載のチル
トサーボ機構。[Claims for Utility Model Registration] (1) A tilt servo mechanism for an optical pickup supported on a support member guided in the radial direction of a turntable of an optical disc player, the tilt servo mechanism being substantially parallel to the center of rotation of the turntable. A tilt servo mechanism comprising: a guide mechanism forming an arcuate guide path for guiding the optical pickup in a plane; and a drive means for moving the optical pickup. (2) The tilt servo mechanism according to claim 1, wherein the center of curvature of the arcuate guide path is located near the disk supporting surface of the turntable. (3) The guide mechanism includes an arc-shaped first guide member attached to either the support member or the optical pickup, and a first guide member attached to the other of the support member and the optical pickup. Claim 1 or 2, further comprising a second guide member that engages with the guide member so as to be relatively movable along an arc.
The tilt servo mechanism described. (4) The second guide member is characterized by comprising at least two rollers that are in contact with one end of the arc-shaped first guide member and at least one roller that is in contact with the other end of the arc-shaped first guide member. The tilt servo mechanism according to claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13306188U JPH0255418U (en) | 1988-10-12 | 1988-10-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13306188U JPH0255418U (en) | 1988-10-12 | 1988-10-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0255418U true JPH0255418U (en) | 1990-04-20 |
Family
ID=31390593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13306188U Pending JPH0255418U (en) | 1988-10-12 | 1988-10-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0255418U (en) |
-
1988
- 1988-10-12 JP JP13306188U patent/JPH0255418U/ja active Pending
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