JPS5725504A - Hydraulic device for operating working machine - Google Patents
Hydraulic device for operating working machineInfo
- Publication number
- JPS5725504A JPS5725504A JP9905680A JP9905680A JPS5725504A JP S5725504 A JPS5725504 A JP S5725504A JP 9905680 A JP9905680 A JP 9905680A JP 9905680 A JP9905680 A JP 9905680A JP S5725504 A JPS5725504 A JP S5725504A
- Authority
- JP
- Japan
- Prior art keywords
- change
- over valve
- operating
- working
- fluid
- 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
- Harvester Elements (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
PURPOSE: To enable an effective utilization of hydraulic fluid or oil from the pump which may be discharged when the the change-over valve is changed over as a working source for other fluid pressure working devices such as a depth adjusting regulator etc. in a fluid pressure device to be applied in a combine cutting machine.
CONSTITUTION: The change-over valve 9 to be changed over under a three-position changing operation for the spool 8 is arranged in a hydraulic fluid feeding pipe between the fluid pressure supply pump P and the uniform operating cylinder 7 for use in operating the working machine. With the first operating condition of the change-over valve 9, the working device B is forcedly lifted through the cylinder 7 and with the second operating condition of the change-over valve the working machine B is descended down by its weight, then with the third operating condition of the change-over valve the working machine B is kept stopped. The pressure fluid from the pump P to be fed toward the change-over valve 9 during the case in which it is set to its second or third condition is automatically and reversely fed to other fluid pressure operated machines for use in regulating a cutting depth or controlling steering operation which is provided in along with the hydraulic operating device for operating the working device through the line C4 for the change-over valve 9, thereby a pressurized fluid may be effectively utilized.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9905680A JPS5725504A (en) | 1980-07-18 | 1980-07-18 | Hydraulic device for operating working machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9905680A JPS5725504A (en) | 1980-07-18 | 1980-07-18 | Hydraulic device for operating working machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5725504A true JPS5725504A (en) | 1982-02-10 |
Family
ID=14236990
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9905680A Pending JPS5725504A (en) | 1980-07-18 | 1980-07-18 | Hydraulic device for operating working machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5725504A (en) |
-
1980
- 1980-07-18 JP JP9905680A patent/JPS5725504A/en active Pending
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