JPS62255U - - Google Patents
Info
- Publication number
- JPS62255U JPS62255U JP1357585U JP1357585U JPS62255U JP S62255 U JPS62255 U JP S62255U JP 1357585 U JP1357585 U JP 1357585U JP 1357585 U JP1357585 U JP 1357585U JP S62255 U JPS62255 U JP S62255U
- Authority
- JP
- Japan
- Prior art keywords
- recording medium
- rotor
- reference position
- shaped recording
- index reference
- 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 3
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Rotational Drive Of Disk (AREA)
Description
第１図はこの考案の一実施例を示す要部平面図
、第２図は第１図に示したものの側面図、第３図
ａ，ｂは投受光器の取付位置に対する板体の腕曲
状態を示す要部説明平面図、第４図は円盤状記録
媒体の構成を示す平面図、第５図は円盤状記録媒
体を用いる記録再生装置の側面図、第６図は第５
図に示したものに設けた従来のインデツクス基準
位置検出機構を示す平面図である。
１……円盤状記録媒体、２……モータ、２ａ…
…ロータ、１３……投受光器、１４……反射板、
１５……調整板、１５ａ……長孔、１７……ねじ
、ａ……インデツクス基準位置、Ｔ……トラツク
。
Fig. 1 is a plan view of the main part showing an embodiment of this invention, Fig. 2 is a side view of the same as shown in Fig. 1, and Figs. FIG. 4 is a plan view showing the configuration of the disk-shaped recording medium, FIG. 5 is a side view of a recording/reproducing apparatus using the disk-shaped recording medium, and FIG.
FIG. 2 is a plan view showing a conventional index reference position detection mechanism provided in the one shown in the figure. 1...Disc-shaped recording medium, 2...Motor, 2a...
...rotor, 13... emitter/receiver, 14... reflector,
15... Adjustment plate, 15a... Long hole, 17... Screw, a... Index reference position, T... Track.
Claims (1)
周面に反射板を設け、投受光器によつてこの反射
板からの反射光を検出することにより円盤状記録
媒体のトラツクにおけるインデツクス基準位置を
検出する機構であつて、前記反射板を可撓性部材
により形成し、その一端をロータ外周面に固着す
ると共に、他端に長孔を有する調整板を設け、こ
の調整板を長孔に係合するねじによりロータ底面
に取り付けたことを特徴とする円盤状記録媒体に
おけるインデツクス基準位置検出機構。 A mechanism that detects the index reference position in the track of the disc-shaped recording medium by providing a reflective plate on the outer peripheral surface of the rotor of a motor that rotates the disc-shaped recording medium, and detecting the reflected light from this reflective plate using a light emitter and receiver. The reflecting plate is formed of a flexible member, one end of which is fixed to the outer circumferential surface of the rotor, an adjustment plate having a long hole is provided at the other end, and a screw engages the adjustment plate with the long hole. An index reference position detection mechanism for a disk-shaped recording medium, characterized in that the index reference position detection mechanism is attached to the bottom surface of a rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1357585U JPH0132208Y2 (en) | 1985-01-31 | 1985-01-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1357585U JPH0132208Y2 (en) | 1985-01-31 | 1985-01-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62255U true JPS62255U (en) | 1987-01-06 |
| JPH0132208Y2 JPH0132208Y2 (en) | 1989-10-03 |
Family
ID=30497708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1357585U Expired JPH0132208Y2 (en) | 1985-01-31 | 1985-01-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0132208Y2 (en) |
-
1985
- 1985-01-31 JP JP1357585U patent/JPH0132208Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0132208Y2 (en) | 1989-10-03 |
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