JPS644972U - - Google Patents
Info
- Publication number
- JPS644972U JPS644972U JP9978687U JP9978687U JPS644972U JP S644972 U JPS644972 U JP S644972U JP 9978687 U JP9978687 U JP 9978687U JP 9978687 U JP9978687 U JP 9978687U JP S644972 U JPS644972 U JP S644972U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- operating
- pressure reducing
- supply source
- reducing valve
- 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
- 239000012530 fluid Substances 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fluid-Driven Valves (AREA)
- Fluid-Pressure Circuits (AREA)
- Control Of Fluid Pressure (AREA)
Description
第1図はこの考案のバルブ開閉装置の一実施例
を示す空気圧回路図、第2図は上記実施例におけ
る電気回路図、第3及び第4図はそれぞれ従来の
バルブ開閉装置の縦断面図及び横断面図である。
1……空気供給源(流体圧供給源)、4……第
2切換弁(第2切換手段)、5……減圧弁、6…
…バイパスライン、9……第1切換弁(第1切換
手段)、12……エアモータ(流体圧モータ)、
26……操作回路(操作手段)、27……検出回
路(検出手段)、28……制御回路(制御手段)
。
FIG. 1 is a pneumatic circuit diagram showing an embodiment of the valve opening/closing device of this invention, FIG. 2 is an electric circuit diagram of the above embodiment, and FIGS. 3 and 4 are longitudinal cross-sectional views and a conventional valve opening/closing device, respectively. FIG. 1... Air supply source (fluid pressure supply source), 4... Second switching valve (second switching means), 5... Pressure reducing valve, 6...
...Bypass line, 9...First switching valve (first switching means), 12...Air motor (fluid pressure motor),
26... Operating circuit (operating means), 27... Detecting circuit (detecting means), 28... Control circuit (control means)
.
Claims (1)
ンによつて流体供給源に接続すると共に、このラ
インには減圧弁を介設し、一方バルブの開閉方向
への作動を選択的に切換えるための第1切換手段
と、この第1切換手段を切換操作するための操作
手段と、バルブがストロークエンドの状態となつ
たのを検出するための検出手段とを備えたバルブ
開閉装置であつて、上記減圧弁の前後をバイパス
ラインでバイパスすると共に、上記流体供給源を
上記バイパスライン又は上記減圧弁に選択的に接
続するための第2切換手段を備え、さらに上記検
出手段でバルブのストロークエンド状態を検出し
ている状態で、このストロークエンドの状態から
他方のストロークエンドに向けてバルブを始動さ
せるべく上記操作手段を操作するときに、この操
作時から所定時間は上記流体供給源を上記バイパ
スラインに接続し、上記所定時間経過後は上記流
体供給源を上記減圧弁に接続するように上記第2
切換手段を作動させるための制御手段を備えてい
ることを特徴とするバルブ開閉装置。 A fluid pressure motor for operating the valve is connected to a fluid supply source by a line, and a pressure reducing valve is interposed in this line. A valve opening/closing device comprising a switching means, an operating means for switching the first switching means, and a detection means for detecting that the valve has reached a stroke end state, the pressure reducing valve as described above. A bypass line is provided before and after the pressure reducing valve, and a second switching means is provided for selectively connecting the fluid supply source to the bypass line or the pressure reducing valve, and the detection means detects a stroke end state of the valve. When operating the operating means to start the valve from one stroke end state to the other stroke end state, the fluid supply source is connected to the bypass line for a predetermined period of time from the time of this operation. , after the predetermined time has elapsed, the second fluid supply source is connected to the pressure reducing valve.
A valve opening/closing device comprising a control means for operating a switching means.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9978687U JPH0430473Y2 (en) | 1987-06-29 | 1987-06-29 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9978687U JPH0430473Y2 (en) | 1987-06-29 | 1987-06-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS644972U true JPS644972U (en) | 1989-01-12 |
JPH0430473Y2 JPH0430473Y2 (en) | 1992-07-22 |
Family
ID=31327266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9978687U Expired JPH0430473Y2 (en) | 1987-06-29 | 1987-06-29 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0430473Y2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010220686A (en) * | 2009-03-19 | 2010-10-07 | Morita Holdings Corp | Fire extinguisher |
JP2014095395A (en) * | 2012-11-07 | 2014-05-22 | Kayaba Ind Co Ltd | Control system of hybrid construction machine |
-
1987
- 1987-06-29 JP JP9978687U patent/JPH0430473Y2/ja not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010220686A (en) * | 2009-03-19 | 2010-10-07 | Morita Holdings Corp | Fire extinguisher |
JP2014095395A (en) * | 2012-11-07 | 2014-05-22 | Kayaba Ind Co Ltd | Control system of hybrid construction machine |
Also Published As
Publication number | Publication date |
---|---|
JPH0430473Y2 (en) | 1992-07-22 |
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