JPS6281695U - - Google Patents
Info
- Publication number
- JPS6281695U JPS6281695U JP17238585U JP17238585U JPS6281695U JP S6281695 U JPS6281695 U JP S6281695U JP 17238585 U JP17238585 U JP 17238585U JP 17238585 U JP17238585 U JP 17238585U JP S6281695 U JPS6281695 U JP S6281695U
- Authority
- JP
- Japan
- Prior art keywords
- drifter
- display
- blow
- circuit
- display circuit
- 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
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 1
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (AREA)
Description
第１図はこの考案の一実施例の回路の作動原理
を図解的に示したブロツク図、第２図は油圧波形
と圧力スイツチ設定圧をグラフで示したもの、第
３図は時間枠とタイミングの設定の関連を示す説
明図、第４図は他の実施例のブロツク図の一部分
を示す。
１…ドリフタ、２…圧力スイツチ、３…制御回
路、４…水晶発信器、５…ＢＣＤカウンタ、６…
メモリラツチ回路、８，８１…表示器。
Fig. 1 is a block diagram illustrating the operating principle of a circuit according to an embodiment of this invention, Fig. 2 is a graph showing hydraulic waveforms and pressure switch setting pressures, and Fig. 3 is a time frame and timing diagram. FIG. 4 shows a part of a block diagram of another embodiment. DESCRIPTION OF SYMBOLS 1...Drifter, 2...Pressure switch, 3...Control circuit, 4...Crystal oscillator, 5...BCD counter, 6...
Memory latch circuit, 8, 8 1 ...Display device.
Claims (1)
するようにされた表示器の表示回路が、油圧を電
気パルスに切替る圧力スイツチと、上記電気パル
スの発信値と、予め決めた時間枠の設定値並びに
タイミングの設定値とをそれぞれ受入れる制御回
路とを設けて成り、あるタイミング毎にパルス数
を出力し打撃数を表示するようにしたことを特徴
とする、ドリフタの打撃数表示回路。 The display circuit of the display device attached to the drifter to display the number of blows of the drifter includes a pressure switch that switches the hydraulic pressure to an electric pulse, the transmission value of the electric pulse, and a predetermined time frame setting value. 1. A blow count display circuit for a drifter, characterized in that the blow count display circuit for a drifter is provided with a control circuit that accepts a set value of a blow and a timing setting value, respectively, and outputs a pulse number at each certain timing to display the blow count.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17238585U JPS6281695U (en) | 1985-11-11 | 1985-11-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17238585U JPS6281695U (en) | 1985-11-11 | 1985-11-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6281695U true JPS6281695U (en) | 1987-05-25 |
Family
ID=31108876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17238585U Pending JPS6281695U (en) | 1985-11-11 | 1985-11-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6281695U (en) |
-
1985
- 1985-11-11 JP JP17238585U patent/JPS6281695U/ja active Pending