JPS5697604A - Controller for oil-hydraulic cylinder - Google Patents

Controller for oil-hydraulic cylinder

Info

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
Application number
JP122380A
Other languages
Japanese (ja)
Other versions
JPS5833401B2 (en
Inventor
Masaharu Asaoka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KYB Corp
Original Assignee
Kayaba Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kayaba Industry Co Ltd filed Critical Kayaba Industry Co Ltd
Priority to JP122380A priority Critical patent/JPS5833401B2/en
Publication of JPS5697604A publication Critical patent/JPS5697604A/en
Publication of JPS5833401B2 publication Critical patent/JPS5833401B2/en
Expired legal-status Critical Current

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
JP122380A 1980-01-09 1980-01-09 Hydraulic cylinder control device Expired JPS5833401B2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63120639U (en) * 1987-01-30 1988-08-04

Cited By (9)

* Cited by examiner, † Cited by third party
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

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