KR900012315U - 굴삭기의 크레인 작업 안전장치 - Google Patents

굴삭기의 크레인 작업 안전장치

Info

Publication number
KR900012315U
KR900012315U KR2019880021967U KR880021967U KR900012315U KR 900012315 U KR900012315 U KR 900012315U KR 2019880021967 U KR2019880021967 U KR 2019880021967U KR 880021967 U KR880021967 U KR 880021967U KR 900012315 U KR900012315 U KR 900012315U
Authority
KR
South Korea
Prior art keywords
excavator
safety device
crane operation
crane
safety
Prior art date
Application number
KR2019880021967U
Other languages
English (en)
Other versions
KR920004544Y1 (ko
Inventor
공희석
박종호
Original Assignee
대우중공업 주식회사
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 대우중공업 주식회사 filed Critical 대우중공업 주식회사
Priority to KR2019880021967U priority Critical patent/KR920004544Y1/ko
Publication of KR900012315U publication Critical patent/KR900012315U/ko
Application granted granted Critical
Publication of KR920004544Y1 publication Critical patent/KR920004544Y1/ko

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
    • E02F9/226—Safety arrangements, e.g. hydraulic driven fans, preventing cavitation, leakage, overheating
    • 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
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2267—Valves or distributors
    • 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
    • E02F9/2278—Hydraulic circuits
    • E02F9/2285—Pilot-operated systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)
KR2019880021967U 1988-12-29 1988-12-29 굴삭기의 크레인 작업 안전장치 KR920004544Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019880021967U KR920004544Y1 (ko) 1988-12-29 1988-12-29 굴삭기의 크레인 작업 안전장치

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019880021967U KR920004544Y1 (ko) 1988-12-29 1988-12-29 굴삭기의 크레인 작업 안전장치

Publications (2)

Publication Number Publication Date
KR900012315U true KR900012315U (ko) 1990-07-03
KR920004544Y1 KR920004544Y1 (ko) 1992-07-03

Family

ID=19282707

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019880021967U KR920004544Y1 (ko) 1988-12-29 1988-12-29 굴삭기의 크레인 작업 안전장치

Country Status (1)

Country Link
KR (1) KR920004544Y1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100701031B1 (ko) * 2006-05-16 2007-03-29 임사현 굴삭기의 붐 비상 하강장치

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100701031B1 (ko) * 2006-05-16 2007-03-29 임사현 굴삭기의 붐 비상 하강장치

Also Published As

Publication number Publication date
KR920004544Y1 (ko) 1992-07-03

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Legal Events

Date Code Title Description
A201 Request for examination
O032 Opposition [utility model]: request for opposition
C193 Request for withdrawal (abandonment)