EP0015296A4 - Device for remote control of hydraulic cranes. - Google Patents

Device for remote control of hydraulic cranes.

Info

Publication number
EP0015296A4
EP0015296A4 EP19790900791 EP79900791A EP0015296A4 EP 0015296 A4 EP0015296 A4 EP 0015296A4 EP 19790900791 EP19790900791 EP 19790900791 EP 79900791 A EP79900791 A EP 79900791A EP 0015296 A4 EP0015296 A4 EP 0015296A4
Authority
EP
European Patent Office
Prior art keywords
hydraulic
hoisting
oil
relief valve
pump
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.)
Withdrawn
Application number
EP19790900791
Other languages
German (de)
French (fr)
Other versions
EP0015296A1 (en
Inventor
Hitoshi Ayano
Keiichi Matano
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.)
Furukawa Unic Corp
Original Assignee
Unic Corp
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
Priority claimed from JP9572578U external-priority patent/JPS5517001U/ja
Priority claimed from JP9044778A external-priority patent/JPS5521309A/en
Application filed by Unic Corp filed Critical Unic Corp
Publication of EP0015296A1 publication Critical patent/EP0015296A1/en
Publication of EP0015296A4 publication Critical patent/EP0015296A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/08—Servomotor systems incorporating electrically operated control means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Jib Cranes (AREA)
  • Control And Safety Of Cranes (AREA)

Abstract

A device for remote control of a hydraulic crane which includes a hydraulic pump, a plurality of fluid actuators for hoisting a boom tilting cylinder, a boom telescopic cylinder, a hoisting motor and a turning motor or the like connected in parallel via oil passages to hydraulic oil supply and exhaust circuits connected to a hydraulic oil tank, operation selecting solenoid valves connected to the oil passage, a proportional solenoid relief valve provided in the oil passage for bypassing the exhaust side of the pump to the tank for controlling the exhaust side hydraulic oil from the hydraulic pump in a crane body and automotive body side, respectively, operation selecting switches for the respective operation selecting solenoids and a potentiometer for controlling the proportional solenoid relief valve in an operation terminal unit wherein the solenoids of the solenoid valves are electrically connected via cables to the switches and potentiometer. In order to control the crane hoisting speed, the conventional relief valve heretofore provided at the exhaust side of the hydraulic pump as a hydraulic oil source is constructed of the proportional solenoid relief valve instead of the conventional flow control valve to thereby control the hydraulic oil and accordingly the operating oil pressure at the exhaust side of the pump. This controls the operating speed of the fluid actuator for hoisting to thereby enable an economical and smooth hoisting operation as well as its remote speed control.
EP19790900791 1978-07-13 1980-02-25 Device for remote control of hydraulic cranes. Withdrawn EP0015296A4 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP95725/78 1978-07-13
JP9572578U JPS5517001U (en) 1978-07-13 1978-07-13
JP9044778A JPS5521309A (en) 1978-07-26 1978-07-26 Remoteecontrolling apparatus for hydraulic crane
JP90447/78 1978-07-26

Publications (2)

Publication Number Publication Date
EP0015296A1 EP0015296A1 (en) 1980-09-17
EP0015296A4 true EP0015296A4 (en) 1980-11-17

Family

ID=26431925

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790900791 Withdrawn EP0015296A4 (en) 1978-07-13 1980-02-25 Device for remote control of hydraulic cranes.

Country Status (6)

Country Link
EP (1) EP0015296A4 (en)
DE (1) DE2952963C1 (en)
FR (1) FR2475024A1 (en)
GB (1) GB2039621B (en)
SE (1) SE433963B (en)
WO (1) WO1980000268A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI64842C (en) * 1982-03-16 1984-01-10 Valmet Oy ANORDNING FOER ATT SPARA ENERGI I EN HYDRAULKRETS
SE451395C (en) * 1983-11-09 1988-12-12 Hydrino Ab PILOT OIL SUPPLY DEVICE FOR A SERVICE VALVE
SE440040B (en) * 1983-11-11 1985-07-15 Andree Marie Dupre Risen FORM FOR BATHROOM PREPARATION
FR2596887A1 (en) * 1986-04-07 1987-10-09 Rangeard Gilbert Sensitive remote control
DE3643501C2 (en) * 1986-12-19 1994-09-29 Claas Saulgau Gmbh Block circuit for several electromagnetically controlled hydraulic valves
JPH0288005U (en) * 1988-12-27 1990-07-12
JPH07115838B2 (en) * 1989-02-13 1995-12-13 株式会社彦間製作所 Crane turning control mechanism
KR0169060B1 (en) * 1996-06-26 1999-01-15 토니 헬샴 Breaker deivce of construction machine
AT408475B (en) 1999-09-10 2001-12-27 Hoerbiger Hydraulik ARRANGEMENT FOR HYDRAULICALLY ACTUATING A MOVABLE COMPONENT ON A VEHICLE
CN102330720B (en) * 2011-03-17 2014-05-28 昆山航天智能技术有限公司 Parameter dynamic matching control system between multi-way reversing valve and hydraulic oil cylinder
CN103114516B (en) * 2013-01-31 2014-12-17 徐州徐工筑路机械有限公司 Hydraulic system of asphalt pavement maintenance vehicle
CN103287980B (en) * 2013-06-27 2014-10-29 湖南中铁五新重工有限公司 Cantilever crane vertical lift control system
SI26379A (en) * 2022-07-13 2024-01-31 Tajfun Liv, Proizvodnja In Razvoj D.O.O. Hydraulic circuit of a mobile hydraulic lift

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2348107A (en) * 1941-06-21 1944-05-02 Manning Maxwell & Moore Inc Hand control unit
DE1807173A1 (en) * 1968-11-06 1970-06-18 Bosch Gmbh Robert Device for the electro-hydraulic remote control of hydraulic directional control valves
DE2210787A1 (en) * 1972-03-07 1973-09-13 Stanislaus Dipl Ing Malik COMMAND PANEL FOR CRANES AND OTHER MACHINERY
FR2257030A1 (en) * 1974-01-03 1975-08-01 Sandretto Sas
FR2306351A1 (en) * 1975-04-03 1976-10-29 Bennes Marrel Progressive electro-hydraulic drive - has distributor with changeover device alternately exciting electrical distributor coils

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2241416A1 (en) * 1972-08-23 1974-03-07 Siegfried Dipl Ing Dr In Gross REMOTE CONTROL DEVICE FOR OPERATING A HYDRAULIC LOADING CRANE OR DGL
DD121915A1 (en) * 1973-09-28 1976-09-05

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2348107A (en) * 1941-06-21 1944-05-02 Manning Maxwell & Moore Inc Hand control unit
DE1807173A1 (en) * 1968-11-06 1970-06-18 Bosch Gmbh Robert Device for the electro-hydraulic remote control of hydraulic directional control valves
DE2210787A1 (en) * 1972-03-07 1973-09-13 Stanislaus Dipl Ing Malik COMMAND PANEL FOR CRANES AND OTHER MACHINERY
FR2257030A1 (en) * 1974-01-03 1975-08-01 Sandretto Sas
FR2306351A1 (en) * 1975-04-03 1976-10-29 Bennes Marrel Progressive electro-hydraulic drive - has distributor with changeover device alternately exciting electrical distributor coils

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO8000268A1 *

Also Published As

Publication number Publication date
FR2475024A1 (en) 1981-08-07
SE8001916L (en) 1980-03-12
DE2952963A1 (en) 1980-11-27
GB2039621B (en) 1982-10-06
WO1980000268A1 (en) 1980-02-21
GB2039621A (en) 1980-08-13
SE433963B (en) 1984-06-25
DE2952963C1 (en) 1984-04-12
EP0015296A1 (en) 1980-09-17

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): FR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

110E Request filed for conversion into a national patent application [according to art. 135 epc]

Effective date: 19800715

18D Application deemed to be withdrawn

Effective date: 19800715

RIN1 Information on inventor provided before grant (corrected)

Inventor name: AYANO, HITOSHI

Inventor name: MATANO, KEIICHI