JPS59220593A - 穿孔装置 - Google Patents

穿孔装置

Info

Publication number
JPS59220593A
JPS59220593A JP9493883A JP9493883A JPS59220593A JP S59220593 A JPS59220593 A JP S59220593A JP 9493883 A JP9493883 A JP 9493883A JP 9493883 A JP9493883 A JP 9493883A JP S59220593 A JPS59220593 A JP S59220593A
Authority
JP
Japan
Prior art keywords
ram
cutter
support means
drilling device
drilling
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
JP9493883A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6323353B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
青木 博止
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.)
Nagano Hydraulics Inc
Original Assignee
Nagano Hydraulics Inc
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 Nagano Hydraulics Inc filed Critical Nagano Hydraulics Inc
Priority to JP9493883A priority Critical patent/JPS59220593A/ja
Publication of JPS59220593A publication Critical patent/JPS59220593A/ja
Publication of JPS6323353B2 publication Critical patent/JPS6323353B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP9493883A 1983-05-31 1983-05-31 穿孔装置 Granted JPS59220593A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9493883A JPS59220593A (ja) 1983-05-31 1983-05-31 穿孔装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9493883A JPS59220593A (ja) 1983-05-31 1983-05-31 穿孔装置

Publications (2)

Publication Number Publication Date
JPS59220593A true JPS59220593A (ja) 1984-12-12
JPS6323353B2 JPS6323353B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1988-05-16

Family

ID=14123891

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9493883A Granted JPS59220593A (ja) 1983-05-31 1983-05-31 穿孔装置

Country Status (1)

Country Link
JP (1) JPS59220593A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010077703A (ja) * 2008-09-26 2010-04-08 Okumura Corp コアボーリング装置及びこれを用いた貫通孔の穿設方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4526151Y1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1965-11-27 1970-10-12

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4526151Y1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1965-11-27 1970-10-12

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010077703A (ja) * 2008-09-26 2010-04-08 Okumura Corp コアボーリング装置及びこれを用いた貫通孔の穿設方法

Also Published As

Publication number Publication date
JPS6323353B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1988-05-16

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