JPS59138048U - Disk lifter position detection device for disk drive device - Google Patents
Disk lifter position detection device for disk drive deviceInfo
- Publication number
- JPS59138048U JPS59138048U JP3331783U JP3331783U JPS59138048U JP S59138048 U JPS59138048 U JP S59138048U JP 3331783 U JP3331783 U JP 3331783U JP 3331783 U JP3331783 U JP 3331783U JP S59138048 U JPS59138048 U JP S59138048U
- Authority
- JP
- Japan
- Prior art keywords
- disc
- lifter
- disc lifter
- disk
- switch
- 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
Landscapes
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
- Feeding And Guiding Record Carriers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はビデオディスク収納ケース及びディスク駆動装
置の斜視図、第２図は第１図中ディスクリフタ近傍の正
面図、第３図は本考案装置の一実施例の要部のブロック
系統図である。
２・・・ディスク、１０・・・ディスクリフタ、１１・
・・ターンテーブル、１５−・・回動体、１５ａ、１５
ｂ′・・・切欠部、１６・・・リフタ駆動回路、１７・
・・レバー、１８・・・マイクロスイッチ、１９・・・
判断回路、２０・・・制御回路、２１・・・表示部。Fig. 1 is a perspective view of a video disc storage case and a disc drive device, Fig. 2 is a front view of the vicinity of the disc lifter in Fig. 1, and Fig. 3 is a block system diagram of essential parts of an embodiment of the device of the present invention. be. 2... Disc, 10... Disc lifter, 11.
... Turntable, 15-... Rotating body, 15a, 15
b'... Notch, 16... Lifter drive circuit, 17.
...Lever, 18...Micro switch, 19...
Judgment circuit, 20... Control circuit, 21... Display unit.
Claims (1)
ディスクリフタの上位位置及び下位位置を夫々検出する
ディスク再生装置のディスクリフタ位置検出装置におい
て、該ディスクリフタを該上位位置から下位位置ｉの間
上昇、下降せ［７めるための互いに異極性の出力を得る
ディスクリフタ駆動回路と、１個のスイッチと、該ディ
スクリフタの変位範囲に応じた所定量該ディスクリフタ
駆動回路からの異極性の出力により互いに異なる方向へ
回動され、該ディスクリフタの該上位位置到達及び下位
位置到達による両方向の回動極限において共に該スイッ
チをオン（又はオフ）、回動途中において該スイッチを
オフ（又はオン）とする回動体と、該ディスクリフタ駆
動回路からの出力の極性と該回動体の回動極限における
該スイッチの状態との組合わせにより該ディスクリフタ
の該上位位置到達及び下位位置到達を判断する回路とを
設けてなるディスク駆動装置のディスクリフタ位置検出
装置。In a disc lifter position detection device for a disc playback device that detects the upper and lower positions of a disc lifter that is mounted with a disc and moves up and down on a turntable, the disc lifter is raised from the upper position to the lower position i. , a disc lifter drive circuit that obtains outputs of mutually different polarities for lowering and lowering the disc lifter, one switch, and outputs of different polarities from the disc lifter drive circuit by a predetermined amount according to the displacement range of the disc lifter. The switch is turned on (or off) in both directions when the disc lifter reaches the upper position and the lower position, and the switch is turned off (or on) in the middle of rotation. A circuit that determines whether the disc lifter has reached the upper position or the lower position based on a combination of the polarity of the output from the disc lifter drive circuit and the state of the switch at the rotation limit of the rotary body. A disk lifter position detection device for a disk drive device, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3331783U JPS59138048U (en) | 1983-03-08 | 1983-03-08 | Disk lifter position detection device for disk drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3331783U JPS59138048U (en) | 1983-03-08 | 1983-03-08 | Disk lifter position detection device for disk drive device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59138048U true JPS59138048U (en) | 1984-09-14 |
| JPH026532Y2 JPH026532Y2 (en) | 1990-02-16 |
Family
ID=30164113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3331783U Granted JPS59138048U (en) | 1983-03-08 | 1983-03-08 | Disk lifter position detection device for disk drive device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59138048U (en) |
-
1983
- 1983-03-08 JP JP3331783U patent/JPS59138048U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH026532Y2 (en) | 1990-02-16 |
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