JPS5482803A - Device for automatically controlling descent of excavating implement of excavator - Google Patents

Device for automatically controlling descent of excavating implement of excavator

Info

Publication number
JPS5482803A
JPS5482803A JP14936077A JP14936077A JPS5482803A JP S5482803 A JPS5482803 A JP S5482803A JP 14936077 A JP14936077 A JP 14936077A JP 14936077 A JP14936077 A JP 14936077A JP S5482803 A JPS5482803 A JP S5482803A
Authority
JP
Japan
Prior art keywords
excavator
automatically controlling
excavating implement
controlling descent
descent
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.)
Pending
Application number
JP14936077A
Other languages
Japanese (ja)
Inventor
Hiroteru Kawashima
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 JP14936077A priority Critical patent/JPS5482803A/en
Publication of JPS5482803A publication Critical patent/JPS5482803A/en
Pending legal-status Critical Current

Links

Landscapes

  • Operation Control Of Excavators (AREA)
  • Earth Drilling (AREA)
JP14936077A 1977-12-14 1977-12-14 Device for automatically controlling descent of excavating implement of excavator Pending JPS5482803A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14936077A JPS5482803A (en) 1977-12-14 1977-12-14 Device for automatically controlling descent of excavating implement of excavator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14936077A JPS5482803A (en) 1977-12-14 1977-12-14 Device for automatically controlling descent of excavating implement of excavator

Publications (1)

Publication Number Publication Date
JPS5482803A true JPS5482803A (en) 1979-07-02

Family

ID=15473421

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14936077A Pending JPS5482803A (en) 1977-12-14 1977-12-14 Device for automatically controlling descent of excavating implement of excavator

Country Status (1)

Country Link
JP (1) JPS5482803A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59192980U (en) * 1983-06-07 1984-12-21 株式会社神戸製鋼所 Wire rope slack prevention device
JP2018131737A (en) * 2017-02-13 2018-08-23 応用地質株式会社 Ground core sampling system and sampling method using the same
JP2020186525A (en) * 2019-05-10 2020-11-19 株式会社竹中工務店 Drilling method and drilling device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5075501A (en) * 1973-11-06 1975-06-20

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5075501A (en) * 1973-11-06 1975-06-20

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59192980U (en) * 1983-06-07 1984-12-21 株式会社神戸製鋼所 Wire rope slack prevention device
JPS6332219Y2 (en) * 1983-06-07 1988-08-29
JP2018131737A (en) * 2017-02-13 2018-08-23 応用地質株式会社 Ground core sampling system and sampling method using the same
JP2020186525A (en) * 2019-05-10 2020-11-19 株式会社竹中工務店 Drilling method and drilling device

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