JPH0235124A - パイロット操作方式の油圧ショベル用油圧回路 - Google Patents

パイロット操作方式の油圧ショベル用油圧回路

Info

Publication number
JPH0235124A
JPH0235124A JP14031589A JP14031589A JPH0235124A JP H0235124 A JPH0235124 A JP H0235124A JP 14031589 A JP14031589 A JP 14031589A JP 14031589 A JP14031589 A JP 14031589A JP H0235124 A JPH0235124 A JP H0235124A
Authority
JP
Japan
Prior art keywords
pilot
operating
valves
operated
valve
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
JP14031589A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0333863B2 (en]
Inventor
Tadashi Nakamura
正 中村
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.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery 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 Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP14031589A priority Critical patent/JPH0235124A/ja
Publication of JPH0235124A publication Critical patent/JPH0235124A/ja
Publication of JPH0333863B2 publication Critical patent/JPH0333863B2/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

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)
  • Fluid-Pressure Circuits (AREA)
JP14031589A 1989-06-02 1989-06-02 パイロット操作方式の油圧ショベル用油圧回路 Granted JPH0235124A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14031589A JPH0235124A (ja) 1989-06-02 1989-06-02 パイロット操作方式の油圧ショベル用油圧回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14031589A JPH0235124A (ja) 1989-06-02 1989-06-02 パイロット操作方式の油圧ショベル用油圧回路

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2268684A Division JPS60168904A (ja) 1984-02-09 1984-02-09 パイロット操作方式の油圧ショベル用油圧回路

Publications (2)

Publication Number Publication Date
JPH0235124A true JPH0235124A (ja) 1990-02-05
JPH0333863B2 JPH0333863B2 (en]) 1991-05-20

Family

ID=15265948

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14031589A Granted JPH0235124A (ja) 1989-06-02 1989-06-02 パイロット操作方式の油圧ショベル用油圧回路

Country Status (1)

Country Link
JP (1) JPH0235124A (en])

Also Published As

Publication number Publication date
JPH0333863B2 (en]) 1991-05-20

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term