JPH0433358B2 - - Google Patents

Info

Publication number
JPH0433358B2
JPH0433358B2 JP11259487A JP11259487A JPH0433358B2 JP H0433358 B2 JPH0433358 B2 JP H0433358B2 JP 11259487 A JP11259487 A JP 11259487A JP 11259487 A JP11259487 A JP 11259487A JP H0433358 B2 JPH0433358 B2 JP H0433358B2
Authority
JP
Japan
Prior art keywords
bit
slit
rod
drilling
tip
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.)
Expired
Application number
JP11259487A
Other languages
English (en)
Japanese (ja)
Other versions
JPS63280120A (ja
Inventor
Yoshiki Funakoshi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP11259487A priority Critical patent/JPS63280120A/ja
Publication of JPS63280120A publication Critical patent/JPS63280120A/ja
Publication of JPH0433358B2 publication Critical patent/JPH0433358B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Piles And Underground Anchors (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Earth Drilling (AREA)
JP11259487A 1987-05-11 1987-05-11 さく孔装置 Granted JPS63280120A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11259487A JPS63280120A (ja) 1987-05-11 1987-05-11 さく孔装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11259487A JPS63280120A (ja) 1987-05-11 1987-05-11 さく孔装置

Publications (2)

Publication Number Publication Date
JPS63280120A JPS63280120A (ja) 1988-11-17
JPH0433358B2 true JPH0433358B2 (en]) 1992-06-02

Family

ID=14590646

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11259487A Granted JPS63280120A (ja) 1987-05-11 1987-05-11 さく孔装置

Country Status (1)

Country Link
JP (1) JPS63280120A (en])

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06294271A (ja) * 1991-05-09 1994-10-21 Toho Kinzoku Kk さく孔装置
JP2002061482A (ja) * 2000-08-23 2002-02-28 Koken Boring Mach Co Ltd 掘削装置

Also Published As

Publication number Publication date
JPS63280120A (ja) 1988-11-17

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