JPS55135206A - Simultaneously operated direction control valve - Google Patents
Simultaneously operated direction control valveInfo
- Publication number
- JPS55135206A JPS55135206A JP4232479A JP4232479A JPS55135206A JP S55135206 A JPS55135206 A JP S55135206A JP 4232479 A JP4232479 A JP 4232479A JP 4232479 A JP4232479 A JP 4232479A JP S55135206 A JPS55135206 A JP S55135206A
- Authority
- JP
- Japan
- Prior art keywords
- direction control
- feed
- control valves
- valves
- lines
- 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
Landscapes
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
PURPOSE: To effectively perform the operation of each load, by providing pilot sequence valves for controlling the pressure of fluid in feed lines of the direction control valves used for constructing simultaneously operating fluid circuits such as parallel circuits.
CONSTITUTION: To a delivery circuit 3 of a pump 1 are connected direction control valves 10W12 through a feed line 20 to control the feed-return operation of pressure oil for each of actuators 13W15. While an unload line 19 is provided in such a manner that the circuit 3 is connected to a tank 2 when each of the direction control valves is placed in neutral positions 16aW16c. Simultaneously pilot lines 24aW24c are provided in such a manner that the pressure oil is supplied to the actuators 13W15 when the direction control valves are placed in the first and second selecting positions. Further pilot sequence valves 21aW21c are interposed between the feed line 20 and bridge lines 48 linked to the feed side of each actuator when each direction control valve is placed at the first and second selecting positions.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4232479A JPS5945841B2 (en) | 1979-04-06 | 1979-04-06 | pressure fluid control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4232479A JPS5945841B2 (en) | 1979-04-06 | 1979-04-06 | pressure fluid control circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55135206A true JPS55135206A (en) | 1980-10-21 |
JPS5945841B2 JPS5945841B2 (en) | 1984-11-09 |
Family
ID=12632821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4232479A Expired JPS5945841B2 (en) | 1979-04-06 | 1979-04-06 | pressure fluid control circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5945841B2 (en) |
-
1979
- 1979-04-06 JP JP4232479A patent/JPS5945841B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5945841B2 (en) | 1984-11-09 |
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