JPH0431461U - - Google Patents
Info
- Publication number
- JPH0431461U JPH0431461U JP7344690U JP7344690U JPH0431461U JP H0431461 U JPH0431461 U JP H0431461U JP 7344690 U JP7344690 U JP 7344690U JP 7344690 U JP7344690 U JP 7344690U JP H0431461 U JPH0431461 U JP H0431461U
- Authority
- JP
- Japan
- Prior art keywords
- disk
- axis
- friction
- holding means
- plane
- 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
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Rotational Drive Of Disk (AREA)
Description
第１図は本願考案によるデイスク偏心補正装置
の一実施例を示す構成図、第３図は本願装置の制
御回路の一実施例を示すブロツク図及び回路図、
第２図、第４図は本願考案の説明に供する図、第
５図は本願考案装置の他の実施例を示す構成図で
ある。
１……回転軸、２……回転部材、３……摩擦部
材、４……デイスク載置盤、５……光デイスク、
６……デイスククランパ、７，１１……電歪素子
、８，１２……摩擦シユー、９……コイルバネ、
１０，１４……板バネ、２０……偏心検出部、２
１，２２……鋸波発生回路、２３……差動増幅器
、２４……リミツタ、２５……演算増幅器、２６
……レベル範囲検出器、２７……スイツチ、Ｒ１
……抵抗、Ｃ１……コンデンサ、３０〜３３……
規制ピン。
FIG. 1 is a block diagram showing an embodiment of the disk eccentricity correction device according to the present invention, and FIG. 3 is a block diagram and circuit diagram showing an embodiment of the control circuit of the device of the present invention.
FIGS. 2 and 4 are diagrams for explaining the invention of the present invention, and FIG. 5 is a configuration diagram showing another embodiment of the apparatus of the invention. 1... Rotating shaft, 2... Rotating member, 3... Friction member, 4... Disk mounting plate, 5... Optical disk,
6... Disc clamper, 7, 11... Electrostrictive element, 8, 12... Friction shoe, 9... Coil spring,
10, 14...Plate spring, 20...Eccentricity detection section, 2
1, 22... sawtooth wave generation circuit, 23... differential amplifier, 24... limiter, 25... operational amplifier, 26
...Level range detector, 27...Switch, R1
...Resistor, C1...Capacitor, 30-33...
regulation pin.
Claims (1)
出し、この検出に基づいて前記デイスクの位置を
修正することにより前記デイスクの偏心を補正す
るデイスクの偏心補正装置であつて、 前記回転軸と一体的に回転し、前記回転軸が垂
線となる異なる複数の平面上にある平面部を有す
る回転体と、 一の前記平面部にガイドされて該平面上でスラ
イド可能なデイスク保持手段と、 前記回転軸と平行な前記デイスク保持手段の中
心線上で互いに直交し、前記平面と平行で前記デ
イスク保持手段に固定したｘ軸とｙ軸を想定した
とき、 前記ｘ軸上に配置されて前記ｘ軸方向の一端に
前記デイスク保持手段が、また他端に他の前記平
面部に形成された摩擦面と対接する第１の摩擦シ
ユーがそれぞれ一体的に取り付いた第１の電歪素
子と、 前記ｙ軸上に配置されて前記ｙ軸方向の一端に
前記デイスク保持手段が、また他端に他の前記平
面部に形成された摩擦面と対接する第２の摩擦シ
ユーがそれぞれ一体的に取り付いた第２の電歪素
子と、 前記摩擦面と前記第１及び第２の摩擦シユー間
に生じる摩擦力を増加する摩擦力増加手段とから
なるデイスクの偏心補正装置。[Claims for Utility Model Registration] A disk eccentricity correction device that corrects the eccentricity of the disk by detecting the eccentricity of the disk with respect to the center of the rotation axis and correcting the position of the disk based on this detection. , a rotating body that rotates integrally with the rotational axis and has a plane portion located on a plurality of different planes with the rotational axis being a perpendicular line; and a disk that is guided by one of the plane portions and is slidable on the plane. and an x-axis and a y-axis that are perpendicular to each other on a center line of the disk holding means parallel to the rotation axis, parallel to the plane, and fixed to the disk holding means, and arranged on the x axis. the disk holding means is integrally attached to one end in the x-axis direction, and the first friction shoe that contacts a friction surface formed on another plane portion is integrally attached to the other end. The element and a second friction shoe arranged on the y-axis and having the disk holding means at one end in the y-axis direction and the other end facing a friction surface formed on another of the flat parts are integrally formed. A disk eccentricity correction device comprising: a second electrostrictive element attached to the friction surface; and friction force increasing means for increasing the friction force generated between the friction surface and the first and second friction shoes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7344690U JPH0713087Y2 (en) | 1990-07-11 | 1990-07-11 | Disk eccentricity correction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7344690U JPH0713087Y2 (en) | 1990-07-11 | 1990-07-11 | Disk eccentricity correction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0431461U true JPH0431461U (en) | 1992-03-13 |
| JPH0713087Y2 JPH0713087Y2 (en) | 1995-03-29 |
Family
ID=31612268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7344690U Expired - Lifetime JPH0713087Y2 (en) | 1990-07-11 | 1990-07-11 | Disk eccentricity correction device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0713087Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008047194A (en) * | 2006-08-11 | 2008-02-28 | Fujitsu Ltd | Balance correcting device |
| WO2008072307A1 (en) * | 2006-12-12 | 2008-06-19 | Fujitsu Limited | Balance correction device and method |
-
1990
- 1990-07-11 JP JP7344690U patent/JPH0713087Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0713087Y2 (en) | 1995-03-29 |
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