JPH0314780U - - Google Patents
Info
- Publication number
- JPH0314780U JPH0314780U JP7227189U JP7227189U JPH0314780U JP H0314780 U JPH0314780 U JP H0314780U JP 7227189 U JP7227189 U JP 7227189U JP 7227189 U JP7227189 U JP 7227189U JP H0314780 U JPH0314780 U JP H0314780U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- speed detection
- drive
- driving
- magnet
- 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
- 238000001514 detection method Methods 0.000 claims description 12
- 230000003287 optical effect Effects 0.000 claims description 10
- 230000006698 induction Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Moving Of Head For Track Selection And Changing (AREA)
Description
第１図は本考案の光ピツクアツプブロツクの送
り装置の一実施例を示す全体構成図、第２図はリ
ニアモータ駆動時の電圧Ｖ１，Ｖ２，Ｖ３及びＶ
４それぞれの関係を示すタイムチヤート図、第３
図は本考案の光ピツクアツプブロツクの送り装置
の他の実施例を示す全体構成図、第４図は従来の
光ピツクアツプブロツクの送り装置を示す全体構
成図、第５図は従来の光ピツクアツプブロツクの
送り装置のリニアモータ駆動時の電圧Ｖ１，Ｖ２
，Ｖ３及びＶ４それぞれの関係を示すタイムチヤ
ート図である。
１……光ピツクアツプブロツク、２……リニア
モータ、３，３′，３″……駆動用コイル、４，
４′，４″……駆動用マグネツト、５……駆動用
ヨーク、６……速度検出センサ、７，７′，７″
……速度検出用コイル、８，８′，８″……速度
検出用マグネツト、９……速度検出用マグネツト
、１０……バツフア、１１……アンプ。
Fig. 1 is an overall configuration diagram showing an embodiment of the optical pick-up block feeding device of the present invention, and Fig. 2 shows the voltages V1, V2, V3 and V when driving the linear motor.
4 Time chart showing the relationship between each, Part 3
Figure 4 is an overall configuration diagram showing another embodiment of the optical pickup block feeding device of the present invention, Figure 4 is an overall configuration diagram showing a conventional optical pickup block feeding device, and Figure 5 is an overall configuration diagram showing a conventional optical pickup block feeding device. Voltage V1, V2 when driving the linear motor of the feeder
, V3, and V4. FIG. 1... Optical pickup block, 2... Linear motor, 3, 3', 3''... Drive coil, 4,
4', 4''... Drive magnet, 5... Drive yoke, 6... Speed detection sensor, 7, 7', 7''
...Speed detection coil, 8, 8', 8''...Speed detection magnet, 9...Speed detection magnet, 10...Buffer, 11...Amplifier.
Claims (1)
度検出用コイルを有する速度検出センサと、前記
駆動用コイル及び速度検出用コイルとを一体的に
所定区間内で移送可能な光ピツクアツプブロツク
を備え、前記駆動用コイルに駆動電流を流すと前
記光ピツクアツプブロツクに送り駆動力が付与さ
れると共に、該光ピツクアツプブロツクの送り速
度に応じて発生する逆起電圧を検出して前記リニ
アモータを制御する光ピツクアツプブロツクの送
り装置において、前記駆動用コイルに駆動電流を
流したときに相互誘導により前記速度検出用コイ
ルに発生する電圧と前記逆起電圧とが逆極性とな
るように前記駆動用コイルと前記速度検出用コイ
ルを巻回し、前記駆動用マグネツトと前記速度検
出用マグネツトを着磁したことを特徴とする光ピ
ツクアツプブロツクの送り装置。 (2) 前記駆動用コイルと前記速度検出用コイル
とを同方向に巻回し、前記駆動用マグネツトと前
記速度検出用マグネツトの着磁方向を互いに逆方
向にしたことを特徴とする請求項１記載の光ピツ
クアツプブロツクの送り装置。[Claims for Utility Model Registration] (1) A linear motor having a drive coil, a speed detection sensor having a speed detection coil, and the drive coil and speed detection coil integrally transported within a predetermined section. When a driving current is applied to the driving coil, a driving force is applied to the optical pickup block, and a back electromotive force generated in accordance with the feeding speed of the optical pickup block is detected. In the optical pickup block feeding device for controlling the linear motor, when a drive current is passed through the drive coil, the voltage generated in the speed detection coil due to mutual induction and the back electromotive voltage have opposite polarities. A feeding device for an optical pick-up block, characterized in that the drive coil and the speed detection coil are wound so that the drive magnet and the speed detection magnet are magnetized. (2) The driving coil and the speed detection coil are wound in the same direction, and the driving magnet and the speed detection magnet are magnetized in opposite directions. Optical pick-up block feeder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7227189U JPH0314780U (en) | 1989-06-20 | 1989-06-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7227189U JPH0314780U (en) | 1989-06-20 | 1989-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0314780U true JPH0314780U (en) | 1991-02-14 |
Family
ID=31610064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7227189U Pending JPH0314780U (en) | 1989-06-20 | 1989-06-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0314780U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6443058A (en) * | 1987-08-06 | 1989-02-15 | Toshiba Corp | Disc reproducing device |
-
1989
- 1989-06-20 JP JP7227189U patent/JPH0314780U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6443058A (en) * | 1987-08-06 | 1989-02-15 | Toshiba Corp | Disc reproducing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0314780U (en) | ||
| JPH0252136U (en) | ||
| JPS58179635U (en) | Pickup objective lens drive device | |
| JPS63143077U (en) | ||
| JPS59161530U (en) | Reel stand device | |
| JPS6016025U (en) | magnetic coupling device | |
| JPS5933127U (en) | Optical pick-up device | |
| JPS5930684U (en) | motor | |
| JPS6114215U (en) | ball joint | |
| JPS6041806U (en) | Displacement detection device | |
| JPS6377370A (en) | Linear pulse motor | |
| JPS59161384U (en) | Motor rotation speed detection device | |
| JPS58140557U (en) | Pick-up arm cueing device | |
| JPS5992221U (en) | motor power unit | |
| JPS61176831U (en) | ||
| JPS6053010U (en) | Gear rotation detection sensor | |
| JPS62152673U (en) | ||
| JPH01147674U (en) | ||
| JPH0480280U (en) | ||
| JPS6368163U (en) | ||
| JPS62180321U (en) | ||
| JPS63120598U (en) | ||
| JPS59195970U (en) | Electric motor speed detection device | |
| JPS6084993U (en) | magnetic display device | |
| JPH0293759U (en) |