JPS5646094A - Hydraulic controlling circuit for rock drill - Google Patents

Hydraulic controlling circuit for rock drill

Info

Publication number
JPS5646094A
JPS5646094A JP12152779A JP12152779A JPS5646094A JP S5646094 A JPS5646094 A JP S5646094A JP 12152779 A JP12152779 A JP 12152779A JP 12152779 A JP12152779 A JP 12152779A JP S5646094 A JPS5646094 A JP S5646094A
Authority
JP
Japan
Prior art keywords
controlling circuit
rock drill
hydraulic controlling
hydraulic
drill
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
JP12152779A
Other languages
Japanese (ja)
Other versions
JPS5752476B2 (en
Inventor
Takeo Shiihara
Toshihiro Niihara
Shiyuuhou Iwata
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.)
Mazda Motor Corp
Original Assignee
Toyo Kogyo 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 Toyo Kogyo Co Ltd filed Critical Toyo Kogyo Co Ltd
Priority to JP12152779A priority Critical patent/JPS5646094A/en
Publication of JPS5646094A publication Critical patent/JPS5646094A/en
Publication of JPS5752476B2 publication Critical patent/JPS5752476B2/ja
Priority to US06/489,608 priority patent/US4440236A/en
Granted legal-status Critical Current

Links

Landscapes

  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Earth Drilling (AREA)
JP12152779A 1979-09-20 1979-09-20 Hydraulic controlling circuit for rock drill Granted JPS5646094A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP12152779A JPS5646094A (en) 1979-09-20 1979-09-20 Hydraulic controlling circuit for rock drill
US06/489,608 US4440236A (en) 1979-09-20 1983-05-05 Hydraulic control system for a rock drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12152779A JPS5646094A (en) 1979-09-20 1979-09-20 Hydraulic controlling circuit for rock drill

Publications (2)

Publication Number Publication Date
JPS5646094A true JPS5646094A (en) 1981-04-27
JPS5752476B2 JPS5752476B2 (en) 1982-11-08

Family

ID=14813425

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12152779A Granted JPS5646094A (en) 1979-09-20 1979-09-20 Hydraulic controlling circuit for rock drill

Country Status (1)

Country Link
JP (1) JPS5646094A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5343362A (en) * 1976-09-29 1978-04-19 Kito Corp Chain block

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5343362A (en) * 1976-09-29 1978-04-19 Kito Corp Chain block

Also Published As

Publication number Publication date
JPS5752476B2 (en) 1982-11-08

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