JPH046823B2 - - Google Patents

Info

Publication number
JPH046823B2
JPH046823B2 JP22409183A JP22409183A JPH046823B2 JP H046823 B2 JPH046823 B2 JP H046823B2 JP 22409183 A JP22409183 A JP 22409183A JP 22409183 A JP22409183 A JP 22409183A JP H046823 B2 JPH046823 B2 JP H046823B2
Authority
JP
Japan
Prior art keywords
pressure
pipe
valve
throttle opening
boom
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.)
Expired
Application number
JP22409183A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60119831A (ja
Inventor
Katsuhiro Yamamoto
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.)
Kato Seisakusho Co Ltd
Original Assignee
Kato Seisakusho 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 Kato Seisakusho Co Ltd filed Critical Kato Seisakusho Co Ltd
Priority to JP22409183A priority Critical patent/JPS60119831A/ja
Publication of JPS60119831A publication Critical patent/JPS60119831A/ja
Publication of JPH046823B2 publication Critical patent/JPH046823B2/ja
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Operation Control Of Excavators (AREA)
JP22409183A 1983-11-30 1983-11-30 建設機械のブ−ム起伏装置 Granted JPS60119831A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22409183A JPS60119831A (ja) 1983-11-30 1983-11-30 建設機械のブ−ム起伏装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22409183A JPS60119831A (ja) 1983-11-30 1983-11-30 建設機械のブ−ム起伏装置

Publications (2)

Publication Number Publication Date
JPS60119831A JPS60119831A (ja) 1985-06-27
JPH046823B2 true JPH046823B2 (US20020125480A1-20020912-P00900.png) 1992-02-07

Family

ID=16808402

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22409183A Granted JPS60119831A (ja) 1983-11-30 1983-11-30 建設機械のブ−ム起伏装置

Country Status (1)

Country Link
JP (1) JPS60119831A (US20020125480A1-20020912-P00900.png)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH041191Y2 (US20020125480A1-20020912-P00900.png) * 1986-10-30 1992-01-16
JP4727390B2 (ja) * 2005-11-01 2011-07-20 日立建機株式会社 アーム回動用液圧シリンダの配管装置

Also Published As

Publication number Publication date
JPS60119831A (ja) 1985-06-27

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