JPS56108335A - Operating method and apparatus for outrigger in movable crane - Google Patents

Operating method and apparatus for outrigger in movable crane

Info

Publication number
JPS56108335A
JPS56108335A JP805180A JP805180A JPS56108335A JP S56108335 A JPS56108335 A JP S56108335A JP 805180 A JP805180 A JP 805180A JP 805180 A JP805180 A JP 805180A JP S56108335 A JPS56108335 A JP S56108335A
Authority
JP
Japan
Prior art keywords
outrigger
oil
head side
rod side
change
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
Application number
JP805180A
Other languages
Japanese (ja)
Inventor
Hiroshi Ito
Yoshio Kato
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP805180A priority Critical patent/JPS56108335A/en
Publication of JPS56108335A publication Critical patent/JPS56108335A/en
Pending legal-status Critical Current

Links

Landscapes

  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Jib Cranes (AREA)

Abstract

PURPOSE: To make the road face reaction of an outrigger symmetric on both sides by mutually connecting outrigger oil cylinders respectively on the head side and the rod side during the setting operation of the outrigger and intercepting these connections after the operation is finished.
CONSTITUTION: Each oil cylinder 8W11 is connected to the discharge port of an oil pump 13 via each change-over valve 14W17 on the head side and the rod side, and constructed to be extended, contracted, or stopped by the operation of each change- over valve 14W17. Among these oil pressure circuits, left and right oil cylinders 10 and 11 on the rear side are connected with each other respectively on the head side and the rod side via conduct pipe lines 20 and 21, on which switching valves 22 and 23 are provided.
COPYRIGHT: (C)1981,JPO&Japio
JP805180A 1980-01-25 1980-01-25 Operating method and apparatus for outrigger in movable crane Pending JPS56108335A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP805180A JPS56108335A (en) 1980-01-25 1980-01-25 Operating method and apparatus for outrigger in movable crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP805180A JPS56108335A (en) 1980-01-25 1980-01-25 Operating method and apparatus for outrigger in movable crane

Publications (1)

Publication Number Publication Date
JPS56108335A true JPS56108335A (en) 1981-08-27

Family

ID=11682527

Family Applications (1)

Application Number Title Priority Date Filing Date
JP805180A Pending JPS56108335A (en) 1980-01-25 1980-01-25 Operating method and apparatus for outrigger in movable crane

Country Status (1)

Country Link
JP (1) JPS56108335A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102003423A (en) * 2010-12-17 2011-04-06 徐州重型机械有限公司 Hydraulic bidirectional lock and crane with same
EP3248930A1 (en) * 2016-05-24 2017-11-29 Ruthmann GmbH & Co. KG Mobile work device
CN108928749A (en) * 2018-08-18 2018-12-04 芜湖筱笙机电科技有限公司 Boom hoisting is used in a kind of laying of petroleum pipeline

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102003423A (en) * 2010-12-17 2011-04-06 徐州重型机械有限公司 Hydraulic bidirectional lock and crane with same
EP3248930A1 (en) * 2016-05-24 2017-11-29 Ruthmann GmbH & Co. KG Mobile work device
CN108928749A (en) * 2018-08-18 2018-12-04 芜湖筱笙机电科技有限公司 Boom hoisting is used in a kind of laying of petroleum pipeline

Similar Documents

Publication Publication Date Title
JPS5795295A (en) Tilting lock device of outboard engine
JPS56129778A (en) Pressure transforming device
JPS56108335A (en) Operating method and apparatus for outrigger in movable crane
JPS5236268A (en) Brake control valve
JPS5484182A (en) Oil hydraulic pressure apparatus
JPS56109904A (en) Hydraulic control circuit for hydraulic cylinder
JPS5620803A (en) Hydraulic circuit
JPS5357375A (en) Hydraulic cylinder equipment
JPS563302A (en) Automatic piston stroke switching device for main fluid pressure cylinder and auxiliary fluid pressure cylinder
JPS55115603A (en) Pressure-compensation controlling system for electro- hydraulic servo pressurizing apparatus
JPS555132A (en) Hydraulic high speed interlock press with manual operation
JPS5786654A (en) Closed hydraulic circuit
JPS56159584A (en) Oil pressure control circuit for construction machine
JPS556008A (en) Mechanism for limiting travel of hydraulic cylinder
JPS5332411A (en) Starting load reducing apparatus for rotary compressor
JPS57161304A (en) Cylinder device
JPS5670104A (en) Oil jack
JPS5683606A (en) Servo valve
SU909379A1 (en) Stand for service life testing of hydraulic cylinders
JPS57195904A (en) Hydraulic cylinder system
JPS56113865A (en) Change-over valve
JPS5758592A (en) Linked driving apparatus
JPS55119651A (en) Winding supporting device
JPS5370287A (en) Method and apparatus for control of double-acting hydraulic cylinder
JPS53122085A (en) Controlling method of oil hydraulic cylinder in iron-manufacturing machineries