JPS5985090A - 穿孔機のロツド着脱検知方法 - Google Patents

穿孔機のロツド着脱検知方法

Info

Publication number
JPS5985090A
JPS5985090A JP19546782A JP19546782A JPS5985090A JP S5985090 A JPS5985090 A JP S5985090A JP 19546782 A JP19546782 A JP 19546782A JP 19546782 A JP19546782 A JP 19546782A JP S5985090 A JPS5985090 A JP S5985090A
Authority
JP
Japan
Prior art keywords
rod
drilling
drifter
air
sleeve
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
JP19546782A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6251360B2 (OSRAM
Inventor
三田　雅三
矢頭　徳弘
豊彦 養安
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP19546782A priority Critical patent/JPS5985090A/ja
Publication of JPS5985090A publication Critical patent/JPS5985090A/ja
Publication of JPS6251360B2 publication Critical patent/JPS6251360B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP19546782A 1982-11-08 1982-11-08 穿孔機のロツド着脱検知方法 Granted JPS5985090A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19546782A JPS5985090A (ja) 1982-11-08 1982-11-08 穿孔機のロツド着脱検知方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19546782A JPS5985090A (ja) 1982-11-08 1982-11-08 穿孔機のロツド着脱検知方法

Publications (2)

Publication Number Publication Date
JPS5985090A true JPS5985090A (ja) 1984-05-16
JPS6251360B2 JPS6251360B2 (OSRAM) 1987-10-29

Family

ID=16341558

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19546782A Granted JPS5985090A (ja) 1982-11-08 1982-11-08 穿孔機のロツド着脱検知方法

Country Status (1)

Country Link
JP (1) JPS5985090A (OSRAM)

Also Published As

Publication number Publication date
JPS6251360B2 (OSRAM) 1987-10-29

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