JPS5794104A - Switching valve - Google Patents
Switching valveInfo
- Publication number
- JPS5794104A JPS5794104A JP16948880A JP16948880A JPS5794104A JP S5794104 A JPS5794104 A JP S5794104A JP 16948880 A JP16948880 A JP 16948880A JP 16948880 A JP16948880 A JP 16948880A JP S5794104 A JPS5794104 A JP S5794104A
- Authority
- JP
- Japan
- Prior art keywords
- actuator
- pipings
- operation lever
- over
- operativity
- 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
- Fluid-Pressure Circuits (AREA)
Abstract
PURPOSE: To improve an operativity of an actuator by connecting a piping connected to an actuator through a change-over valve changed over when an operation lever is at its operable position to a puppet valve at its behind.
CONSTITUTION: The rear portions of puppet valves 4a, 4b are connected to pipings 6a, 6b through change-over valves 17a, 17b changed when an operation lever 12 is moved to its operative position. Consequently, when a load is applied to an actuator and even when the operation lever 12 is finely moved, the actuator does not operate if the pressure in pipings 5a, 5b are not higher than these in the pipings 6a, 6b. Then the actuator does not operate if the operator does not want and an operativity can be improved.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16948880A JPS5794104A (en) | 1980-12-03 | 1980-12-03 | Switching valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16948880A JPS5794104A (en) | 1980-12-03 | 1980-12-03 | Switching valve |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5794104A true JPS5794104A (en) | 1982-06-11 |
JPS6352242B2 JPS6352242B2 (en) | 1988-10-18 |
Family
ID=15887453
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16948880A Granted JPS5794104A (en) | 1980-12-03 | 1980-12-03 | Switching valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5794104A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5138838A (en) * | 1991-02-15 | 1992-08-18 | Caterpillar Inc. | Hydraulic circuit and control system therefor |
-
1980
- 1980-12-03 JP JP16948880A patent/JPS5794104A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5138838A (en) * | 1991-02-15 | 1992-08-18 | Caterpillar Inc. | Hydraulic circuit and control system therefor |
WO1992014944A1 (en) * | 1991-02-15 | 1992-09-03 | Caterpillar Inc. | Hydraulic circuit and control system therefor |
Also Published As
Publication number | Publication date |
---|---|
JPS6352242B2 (en) | 1988-10-18 |
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