JPS56128899A - Excavation load detector for vertical hole excavator - Google Patents

Excavation load detector for vertical hole excavator

Info

Publication number
JPS56128899A
JPS56128899A JP3026380A JP3026380A JPS56128899A JP S56128899 A JPS56128899 A JP S56128899A JP 3026380 A JP3026380 A JP 3026380A JP 3026380 A JP3026380 A JP 3026380A JP S56128899 A JPS56128899 A JP S56128899A
Authority
JP
Japan
Prior art keywords
vertical hole
load detector
excavation load
hole excavator
excavator
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
JP3026380A
Other languages
Japanese (ja)
Other versions
JPS624515B2 (en
Inventor
Hiroshi Kusumi
Yasuaki Ishikawa
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 JP3026380A priority Critical patent/JPS56128899A/en
Publication of JPS56128899A publication Critical patent/JPS56128899A/en
Publication of JPS624515B2 publication Critical patent/JPS624515B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP3026380A 1980-03-12 1980-03-12 Excavation load detector for vertical hole excavator Granted JPS56128899A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3026380A JPS56128899A (en) 1980-03-12 1980-03-12 Excavation load detector for vertical hole excavator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3026380A JPS56128899A (en) 1980-03-12 1980-03-12 Excavation load detector for vertical hole excavator

Publications (2)

Publication Number Publication Date
JPS56128899A true JPS56128899A (en) 1981-10-08
JPS624515B2 JPS624515B2 (en) 1987-01-30

Family

ID=12298809

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3026380A Granted JPS56128899A (en) 1980-03-12 1980-03-12 Excavation load detector for vertical hole excavator

Country Status (1)

Country Link
JP (1) JPS56128899A (en)

Also Published As

Publication number Publication date
JPS624515B2 (en) 1987-01-30

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