JPH0649632Y2 - 油圧ショベルの油圧回路 - Google Patents

油圧ショベルの油圧回路

Info

Publication number
JPH0649632Y2
JPH0649632Y2 JP1987090067U JP9006787U JPH0649632Y2 JP H0649632 Y2 JPH0649632 Y2 JP H0649632Y2 JP 1987090067 U JP1987090067 U JP 1987090067U JP 9006787 U JP9006787 U JP 9006787U JP H0649632 Y2 JPH0649632 Y2 JP H0649632Y2
Authority
JP
Japan
Prior art keywords
valve
boom
swing
pilot
pilot pressure
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 - Lifetime
Application number
JP1987090067U
Other languages
English (en)
Japanese (ja)
Other versions
JPS63198644U (US20030199744A1-20031023-C00003.png
Inventor
宏 下垣内
Original Assignee
油谷重工株式会社
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 油谷重工株式会社 filed Critical 油谷重工株式会社
Priority to JP1987090067U priority Critical patent/JPH0649632Y2/ja
Publication of JPS63198644U publication Critical patent/JPS63198644U/ja
Application granted granted Critical
Publication of JPH0649632Y2 publication Critical patent/JPH0649632Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
JP1987090067U 1987-06-10 1987-06-10 油圧ショベルの油圧回路 Expired - Lifetime JPH0649632Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987090067U JPH0649632Y2 (ja) 1987-06-10 1987-06-10 油圧ショベルの油圧回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987090067U JPH0649632Y2 (ja) 1987-06-10 1987-06-10 油圧ショベルの油圧回路

Publications (2)

Publication Number Publication Date
JPS63198644U JPS63198644U (US20030199744A1-20031023-C00003.png) 1988-12-21
JPH0649632Y2 true JPH0649632Y2 (ja) 1994-12-14

Family

ID=30949607

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987090067U Expired - Lifetime JPH0649632Y2 (ja) 1987-06-10 1987-06-10 油圧ショベルの油圧回路

Country Status (1)

Country Link
JP (1) JPH0649632Y2 (US20030199744A1-20031023-C00003.png)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100886476B1 (ko) 2007-03-12 2009-03-05 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 건설기계용 유압회로
KR101088752B1 (ko) * 2009-05-22 2011-12-01 볼보 컨스트럭션 이큅먼트 에이비 복합 조작성을 개선시킨 유압시스템

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5980509A (ja) * 1983-09-14 1984-05-10 Yutani Juko Kk 複数の流体圧アクチユエ−タの作動回路
JPS62107124A (ja) * 1985-10-15 1987-05-18 Yutani Juko Kk 建設機械の油圧回路

Also Published As

Publication number Publication date
JPS63198644U (US20030199744A1-20031023-C00003.png) 1988-12-21

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