JPS64824U - - Google Patents
Info
- Publication number
- JPS64824U JPS64824U JP9393887U JP9393887U JPS64824U JP S64824 U JPS64824 U JP S64824U JP 9393887 U JP9393887 U JP 9393887U JP 9393887 U JP9393887 U JP 9393887U JP S64824 U JPS64824 U JP S64824U
- Authority
- JP
- Japan
- Prior art keywords
- reel
- disk mechanism
- convex portion
- rotation
- convex
- 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 2
- 239000002344 surface layer Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は一実施例を示す断面図、第２図は従来
のリールデイスク機構を示す断面図、第３図は従
来のリールデイスク機構で用いられる回転検出用
フイルムを示す斜視図、第４図は第１図の実施例
のリールデイスクの底面を示す斜視図、第５図は
同実施例の非反射部の動作を示す概略断面図、第
６図は同実施例の反射部の動作を示す概略断面図
、第７図は他の実施例における非反射部の動作を
示す概略断面図である。
２……回転軸、４ａ……リールデイスク、８ａ
……リール係合部、２４……発光素子、２６……
受光素子、２８……反射部、３０，３０ａ……非
反射部。
FIG. 1 is a sectional view showing one embodiment, FIG. 2 is a sectional view showing a conventional reel disk mechanism, FIG. 3 is a perspective view showing a rotation detection film used in the conventional reel disk mechanism, and FIG. 4 1 is a perspective view showing the bottom surface of the reel disk of the embodiment shown in FIG. 1, FIG. 5 is a schematic sectional view showing the operation of the non-reflective part of the embodiment, and FIG. 6 is a diagram showing the operation of the reflective part of the embodiment. Schematic sectional view, FIG. 7 is a schematic sectional view showing the operation of the non-reflective part in another embodiment. 2...Rotating shaft, 4a...Reel disk, 8a
... Reel engaging portion, 24 ... Light emitting element, 26 ...
Light-receiving element, 28... reflective section, 30, 30a... non-reflective section.
Claims (1)
させるとともに、底面には反射光強度差により回
転検出が行なわれる回転検出部が設けられている
リールデイスク機構において、リールデイスクの
底面に周方向に沿つて凹部と凸部を交互に形成し
、凸部には反射率の高い表面層を形成することに
より回転検出部を構成したことを特徴とするリー
ルデイスク機構。 In a reel-disk mechanism, a reel on which a tape-shaped medium is wound is driven and rotated, and a rotation detection section is installed on the bottom surface to detect the rotation based on the difference in intensity of reflected light. 1. A reel disk mechanism characterized in that a rotation detecting section is configured by alternately forming concave portions and convex portions along the convex portion, and forming a surface layer with high reflectance on the convex portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9393887U JPS64824U (en) | 1987-06-17 | 1987-06-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9393887U JPS64824U (en) | 1987-06-17 | 1987-06-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS64824U true JPS64824U (en) | 1989-01-05 |
Family
ID=30956945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9393887U Pending JPS64824U (en) | 1987-06-17 | 1987-06-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS64824U (en) |
-
1987
- 1987-06-17 JP JP9393887U patent/JPS64824U/ja active Pending