JPS5425046A - Horizontal luffing crane - Google Patents
Horizontal luffing craneInfo
- Publication number
- JPS5425046A JPS5425046A JP8742977A JP8742977A JPS5425046A JP S5425046 A JPS5425046 A JP S5425046A JP 8742977 A JP8742977 A JP 8742977A JP 8742977 A JP8742977 A JP 8742977A JP S5425046 A JPS5425046 A JP S5425046A
- Authority
- JP
- Japan
- Prior art keywords
- luffing crane
- horizontal luffing
- cylinder
- hydraulic
- horizontal
- 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
- Jib Cranes (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
PURPOSE: To improve the efficiency of a hydraulic circuit of a horizontally luffing crane by providing electrohydraulically controlling means for adjusting hydraulic oil amount to a hydraulic cylinder to adjust the supply amount of the oil in response to the telescoping position of the cylinder.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8742977A JPS5425046A (en) | 1977-07-22 | 1977-07-22 | Horizontal luffing crane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8742977A JPS5425046A (en) | 1977-07-22 | 1977-07-22 | Horizontal luffing crane |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5425046A true JPS5425046A (en) | 1979-02-24 |
Family
ID=13914615
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8742977A Pending JPS5425046A (en) | 1977-07-22 | 1977-07-22 | Horizontal luffing crane |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5425046A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5872691A (en) * | 1981-10-26 | 1983-04-30 | Mizuho Ika Kogyo Kk | Selector valve |
CN102502434A (en) * | 2011-10-21 | 2012-06-20 | 四川宏华石油设备有限公司 | Luffing hydraulic controlling system of joint lift |
-
1977
- 1977-07-22 JP JP8742977A patent/JPS5425046A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5872691A (en) * | 1981-10-26 | 1983-04-30 | Mizuho Ika Kogyo Kk | Selector valve |
CN102502434A (en) * | 2011-10-21 | 2012-06-20 | 四川宏华石油设备有限公司 | Luffing hydraulic controlling system of joint lift |
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