JPS5697604A - Controller for oil-hydraulic cylinder - Google Patents
Controller for oil-hydraulic cylinderInfo
- Publication number
- JPS5697604A JPS5697604A JP122380A JP122380A JPS5697604A JP S5697604 A JPS5697604 A JP S5697604A JP 122380 A JP122380 A JP 122380A JP 122380 A JP122380 A JP 122380A JP S5697604 A JPS5697604 A JP S5697604A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- voltage
- solenoid
- dead zone
- hydraulic 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.)
- Granted
Links
Landscapes
- Servomotors (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
PURPOSE: To eliminate the need for a spring for decreasing the dead zone in an oil- hydraulic cylinder by correcting the solenoid-driving current through adding up to a predetermined limit for the tilting of the control lever from the neutral position so that the plunger is moved to the upper limit in the neutral dead zone of the branch valve.
CONSTITUTION: The terminal voltage A of a sliding resistor 32 connected to a control level, which varies in proportion to the tilting angle of said lever, is amplified in an amplifier 35 and transistors Tr36 and 37 before being supplied to a solenoid 11 as a current signal. Until the tilting angle of the control lever reaches a predetermined value, according to the difference between the terminal voltage A and a predetermined reference voltage B a comparator 38 adds a given adding voltage to said voltage A to be supplied to the amplifier 35 in order to correct the driving current for the solenoid 11 so that the plunger of the oil-hydraulic valve is promptly moved to the upper limit in the neutral dead zone of the branch valve.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP122380A JPS5833401B2 (en) | 1980-01-09 | 1980-01-09 | Hydraulic cylinder control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP122380A JPS5833401B2 (en) | 1980-01-09 | 1980-01-09 | Hydraulic cylinder control device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5697604A true JPS5697604A (en) | 1981-08-06 |
JPS5833401B2 JPS5833401B2 (en) | 1983-07-19 |
Family
ID=11495463
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP122380A Expired JPS5833401B2 (en) | 1980-01-09 | 1980-01-09 | Hydraulic cylinder control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5833401B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58142005A (en) * | 1982-02-16 | 1983-08-23 | Tadano Tekkosho:Kk | Hydraulic device |
JPS60107405U (en) * | 1983-12-24 | 1985-07-22 | 株式会社豊田自動織機製作所 | Switching operation circuit for cargo handling control valve in forklift |
JPS61236902A (en) * | 1985-04-12 | 1986-10-22 | Toyoda Autom Loom Works Ltd | Controller for electric type proportional control valve |
JPS6435103A (en) * | 1987-07-30 | 1989-02-06 | Hitachi Construction Machinery | Hydraulic drive |
WO2001048386A1 (en) * | 1999-12-28 | 2001-07-05 | Kayaba Kogyo Kabushiki Kaisha | Signal processor of joystick input device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63120639U (en) * | 1987-01-30 | 1988-08-04 |
-
1980
- 1980-01-09 JP JP122380A patent/JPS5833401B2/en not_active Expired
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58142005A (en) * | 1982-02-16 | 1983-08-23 | Tadano Tekkosho:Kk | Hydraulic device |
JPS60107405U (en) * | 1983-12-24 | 1985-07-22 | 株式会社豊田自動織機製作所 | Switching operation circuit for cargo handling control valve in forklift |
JPS61236902A (en) * | 1985-04-12 | 1986-10-22 | Toyoda Autom Loom Works Ltd | Controller for electric type proportional control valve |
JPS6435103A (en) * | 1987-07-30 | 1989-02-06 | Hitachi Construction Machinery | Hydraulic drive |
WO2001048386A1 (en) * | 1999-12-28 | 2001-07-05 | Kayaba Kogyo Kabushiki Kaisha | Signal processor of joystick input device |
EP1167777A1 (en) * | 1999-12-28 | 2002-01-02 | Kayaba Kogyo Kabushiki Kaisha | Signal processor of joystick input device |
US6892102B1 (en) | 1999-12-28 | 2005-05-10 | Kayaba Kogyo Kabushiki Kaisha | Signal processor for a joystick input device |
JP3644925B2 (en) * | 1999-12-28 | 2005-05-11 | カヤバ工業株式会社 | Signal processing device for joystick input device |
EP1167777A4 (en) * | 1999-12-28 | 2009-03-25 | Kayaba Industry Co Ltd | Signal processor of joystick input device |
Also Published As
Publication number | Publication date |
---|---|
JPS5833401B2 (en) | 1983-07-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5547908A (en) | Electronic vehicle height adjusting apparatus | |
JPS5697604A (en) | Controller for oil-hydraulic cylinder | |
JPS57110520A (en) | Level control device for vehicle with van body | |
JPS57110731A (en) | Method of controlling time for jetting of distribution type fuel jet pump | |
JPS5786601A (en) | Actuator controlling apparatus | |
JPS56146473A (en) | Power steering controller with safety circuit | |
JPS57173604A (en) | Proportional control solenoid valve | |
JPS5779525A (en) | Method and device for control master-slave type manipulator | |
JPS57111703A (en) | Adaptive control device for process | |
JPS56140789A (en) | Color balance control circuit | |
JPS57160559A (en) | Level controller in mold for continuous casting installation | |
JPS52149577A (en) | Proportional integral controller | |
JPS54721A (en) | Constant output controller for motor | |
FR2239418A1 (en) | Agricultural machine hydraulic lift control - has threshold value stages controlling solenoid valves for movement in opposite directions | |
JPS5213177A (en) | Metallic mold to move by numerical value control | |
JPS51119545A (en) | Expantion valve | |
SE7413033L (en) | ||
JPS5426266A (en) | Automatic sheet gauge controlling method for rolling mill | |
JPS56104594A (en) | Automatic color balance device | |
JPS57106383A (en) | Controlling method for stoppage of servomotor and its control circuit | |
JPS5218538A (en) | Improved automatic choke system of vehicle | |
JPS57143254A (en) | Electron-beam-current controlling device | |
JPS57173603A (en) | Controller for hydraulic cylinder | |
JPS57156698A (en) | Speed controller for generator | |
JPS5215013A (en) | Remote control system for dump car |