JPS5718530A - Control device for oil-hydraulic selector valve of special outfit car - Google Patents
Control device for oil-hydraulic selector valve of special outfit carInfo
- Publication number
- JPS5718530A JPS5718530A JP9194780A JP9194780A JPS5718530A JP S5718530 A JPS5718530 A JP S5718530A JP 9194780 A JP9194780 A JP 9194780A JP 9194780 A JP9194780 A JP 9194780A JP S5718530 A JPS5718530 A JP S5718530A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- selector valve
- rack
- motor
- cylinder
- 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
- Control And Safety Of Cranes (AREA)
Abstract
PURPOSE: To secure operation with safety by installing a gearing mechanism, which is to reinstate a selector valve to the neutral position according to the output of a flowmeter provided between the selector valve and oil-hydraulic apparatus, and thereby permitting the moving part of the oil-hydraulic apparatus to move by an amount corresponding to that amount the control lever is operated.
CONSTITUTION: An oil pressure motor 15 as working oil flowmeter is equipped in the piping 5a between the selector valve 13 and oil pressure cylinder 5, and a gearing mechanism G is constituted with No.1, No.2 pinions 16, 19 and No.1, No.2 racks 17, 18. When the operating part 20b of the control lever 20 is shifted to the right in order to lift a boom 3, the pinion and rack 18 will work to change over the selector valve 13 to the left, and the pressure oil is fed to the cylinder 5 through the motor 15 to expand it. At this time, turn of the motor 15 and pinion 16 will move the rack 17 to the right and the rack 18 to the left, and thus the selector valve 13 is reinstated to the neutral position. The expansion of cylinder 5 is thus stopped.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9194780A JPS5718530A (en) | 1980-07-04 | 1980-07-04 | Control device for oil-hydraulic selector valve of special outfit car |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9194780A JPS5718530A (en) | 1980-07-04 | 1980-07-04 | Control device for oil-hydraulic selector valve of special outfit car |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5718530A true JPS5718530A (en) | 1982-01-30 |
Family
ID=14040776
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9194780A Pending JPS5718530A (en) | 1980-07-04 | 1980-07-04 | Control device for oil-hydraulic selector valve of special outfit car |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5718530A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5232913A (en) * | 1975-09-09 | 1977-03-12 | Fuaburikashion De Makinasu Sa | Gob selector provided with closed loop servomeans |
-
1980
- 1980-07-04 JP JP9194780A patent/JPS5718530A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5232913A (en) * | 1975-09-09 | 1977-03-12 | Fuaburikashion De Makinasu Sa | Gob selector provided with closed loop servomeans |
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