JPS57103911A - Controlling device for driving cylinder - Google Patents
Controlling device for driving cylinderInfo
- Publication number
- JPS57103911A JPS57103911A JP18064980A JP18064980A JPS57103911A JP S57103911 A JPS57103911 A JP S57103911A JP 18064980 A JP18064980 A JP 18064980A JP 18064980 A JP18064980 A JP 18064980A JP S57103911 A JPS57103911 A JP S57103911A
- Authority
- JP
- Japan
- Prior art keywords
- apertures
- cylinder
- valve
- tube
- control 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.)
- Pending
Links
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
PURPOSE: To make the safety valve considered essential heretofor unnecessary and simplifyh a constitution by a method wherein a control valve and a cylinder are rationally incorporated in a system that the cylinder is driven and controlled through a control valve which is well suitable to a gear shifting of the agricultural tractor.
CONSTITUTION: A cylinder 2 divides the interior of tube 3 into two chambers 4, 5 with a piston 6 freely and contactingly inserted in the cylinder tube 3 and makes it connect with each chamber 4, 5 to form drive apertures 7, 8 and escaping apertures 9, 10 in the tube 3. On the other hand, a control valve 1 forms supply apertures 16, 17 connecting with the above described drive apertures 7, 8, relay apertures 19, 20 connecting with the escaping apertures 9, 10 and a pressure source aperture 21 connecting with the high pressure fluid source P on its own body 14, and inserts a valve 15 operated by a gear shifting 27 in its inner part. Apertures 16, 19 are connected with a drain aperture 18, e.g. in the first site of the valve 15, and apertures 17, 21 are connected between themselves to be composed so that the aperture 20 may be closed.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18064980A JPS57103911A (en) | 1980-12-19 | 1980-12-19 | Controlling device for driving cylinder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18064980A JPS57103911A (en) | 1980-12-19 | 1980-12-19 | Controlling device for driving cylinder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57103911A true JPS57103911A (en) | 1982-06-28 |
Family
ID=16086878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18064980A Pending JPS57103911A (en) | 1980-12-19 | 1980-12-19 | Controlling device for driving cylinder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57103911A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4471938A (en) * | 1982-11-01 | 1984-09-18 | United Technologies Corporation | Modulating poppet valve |
-
1980
- 1980-12-19 JP JP18064980A patent/JPS57103911A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4471938A (en) * | 1982-11-01 | 1984-09-18 | United Technologies Corporation | Modulating poppet valve |
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