JPS63173197U - - Google Patents
Info
- Publication number
- JPS63173197U JPS63173197U JP6457387U JP6457387U JPS63173197U JP S63173197 U JPS63173197 U JP S63173197U JP 6457387 U JP6457387 U JP 6457387U JP 6457387 U JP6457387 U JP 6457387U JP S63173197 U JPS63173197 U JP S63173197U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- pilot
- control
- electromagnetic
- cargo handling
- 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
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Servomotors (AREA)
- Fluid-Pressure Circuits (AREA)
- Forklifts And Lifting Vehicles (AREA)
Description
第１図〜第４図は本考案の実施例を示し、第１
図は制御ブロツク図、第２図は作動線図、第３図
はリフトシリンダ駆動用の油圧回路図、第４図は
制御フローチヤート図である。第５図は従来の制
御ブロツク図、第６図はその作動線図である。
１…リフトシリンダ、２…コントロールバルブ
、９…パイロツトピストン、１２…パイロツト導
入管路、１４…電磁開閉弁、１５…パイロツトド
レン管路、１６…絞り弁、１７…操作レバー、１
８…切換スイツチ、１９…コントローラ。
1 to 4 show embodiments of the present invention.
2 is a control block diagram, FIG. 2 is an operating diagram, FIG. 3 is a hydraulic circuit diagram for driving the lift cylinder, and FIG. 4 is a control flowchart. FIG. 5 is a conventional control block diagram, and FIG. 6 is its operation diagram. DESCRIPTION OF SYMBOLS 1... Lift cylinder, 2... Control valve, 9... Pilot piston, 12... Pilot introduction pipe, 14... Solenoid on-off valve, 15... Pilot drain pipe, 16... Throttle valve, 17... Operation lever, 1
8...Selector switch, 19...Controller.
Claims (1)
コントロールバルブにパイロツト圧油を導入する
パイロツト導入管路と、これに対応して設けられ
たパイロツト圧油導出用のパイロツトドレン管路
とのいずれか一方には電磁開閉弁を、他方には流
量規制用の絞り弁をそれぞれ設け、荷役操作手段
の操作に対応するコントローラからの制御信号に
基づいて前記電磁開閉弁を開閉作動させるように
したフオークリフトの荷役用コントロールバルブ
制御装置において、前記リフトシリンダの作動速
度切換用の切換スイツチを設け、この切換スイツ
チの操作によりコントローラから前記電磁開閉弁
に出力される制御信号を標準速用と微速用とに切
換えるようにしたフオークリフトの荷役用コント
ロールバルブ制御装置。 An electromagnetic valve is connected to either the pilot introduction pipe that introduces pilot pressure oil to the pilot-operated control valve that controls the lift cylinder, or the corresponding pilot drain pipe that takes out the pilot pressure oil. A control for cargo handling of a forklift, in which an on-off valve is provided, and a throttle valve for flow rate regulation is provided on the other side, and the electromagnetic on-off valve is opened and closed based on a control signal from a controller corresponding to the operation of a cargo handling operation means. The valve control device is provided with a changeover switch for changing the operating speed of the lift cylinder, and by operating the changeover switch, the control signal output from the controller to the electromagnetic on-off valve is switched between standard speed and slow speed. Control valve control device for forklift cargo handling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6457387U JPH0439279Y2 (en) | 1987-04-28 | 1987-04-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6457387U JPH0439279Y2 (en) | 1987-04-28 | 1987-04-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63173197U true JPS63173197U (en) | 1988-11-10 |
| JPH0439279Y2 JPH0439279Y2 (en) | 1992-09-14 |
Family
ID=30900854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6457387U Expired JPH0439279Y2 (en) | 1987-04-28 | 1987-04-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0439279Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05178595A (en) * | 1991-12-25 | 1993-07-20 | Komatsu Forklift Co Ltd | Cargo handling control method for industrial vehicle |
-
1987
- 1987-04-28 JP JP6457387U patent/JPH0439279Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05178595A (en) * | 1991-12-25 | 1993-07-20 | Komatsu Forklift Co Ltd | Cargo handling control method for industrial vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0439279Y2 (en) | 1992-09-14 |
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