JPH0178421U - - Google Patents
Info
- Publication number
- JPH0178421U JPH0178421U JP1987175380U JP17538087U JPH0178421U JP H0178421 U JPH0178421 U JP H0178421U JP 1987175380 U JP1987175380 U JP 1987175380U JP 17538087 U JP17538087 U JP 17538087U JP H0178421 U JPH0178421 U JP H0178421U
- Authority
- JP
- Japan
- Prior art keywords
- shielding member
- light
- knob
- fixed
- volume
- 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
Landscapes
- Control Of Amplification And Gain Control (AREA)
- Details Of Measuring And Other Instruments (AREA)
Description
第１図は本考案の一実施例に於けるボリユーム
の動作表示装置の機構部分の分解斜視図、第２図
は同上装置のツマミの回転範囲とスリツトの位置
関係を説明する模式図、第３図は同上装置の主要
回路ブロツク図、第４図は従来のボリユームの動
作表示装置の主要回路ブロツク図を示す。
１１……ボリユーム、１２……パネル、１４…
…ボリユームツマミ、１５……スリツト、１６…
…遮光部材、１７……フオトインタラプタ、１８
……ＬＥＤ、２７……表示手段。
Fig. 1 is an exploded perspective view of the mechanical part of a volume operation display device in an embodiment of the present invention, Fig. 2 is a schematic diagram illustrating the rotation range of the knob and the positional relationship of the slit in the same device, and Fig. 3 The figure shows a main circuit block diagram of the above device, and FIG. 4 shows a main circuit block diagram of a conventional volume operation display device. 11...Volume, 12...Panel, 14...
...Volume knob, 15...Slit, 16...
... Light shielding member, 17 ... Photo interrupter, 18
...LED, 27...Display means.
Claims (1)
向に多数のスリツトを配列した遮光部材と、固定
部上に固定され、上記遮光部材を挾んで配置した
フオトインタラプタと、該フオトインタラプタの
出力によつて点灯・消灯が制御される表示手段と
から成り、 ボリユームツマミが動作する時、上記フオトイ
ンタラプタに遮光部材のスリツトに基づくパルス
出力を生じさせ、この出力により上記表示手段を
点滅させることを特徴とするボリユームの動作表
示装置。[Claims for Utility Model Registration] A light-shielding member fixed to a volume knob and having a large number of slits arranged in the operating direction of the knob; a photo interrupter fixed on the fixed portion and arranged to sandwich the light-shielding member; and display means whose lighting and extinguishment are controlled by the output of the interrupter. When the volume knob operates, the photo interrupter generates a pulse output based on the slit of the light shielding member, and this output causes the display means to blink. A volume operation display device characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987175380U JPH0178421U (en) | 1987-11-16 | 1987-11-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987175380U JPH0178421U (en) | 1987-11-16 | 1987-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0178421U true JPH0178421U (en) | 1989-05-26 |
Family
ID=31467174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987175380U Pending JPH0178421U (en) | 1987-11-16 | 1987-11-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0178421U (en) |
-
1987
- 1987-11-16 JP JP1987175380U patent/JPH0178421U/ja active Pending
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