JPH0114846B2 - - Google Patents

Info

Publication number
JPH0114846B2
JPH0114846B2 JP58124384A JP12438483A JPH0114846B2 JP H0114846 B2 JPH0114846 B2 JP H0114846B2 JP 58124384 A JP58124384 A JP 58124384A JP 12438483 A JP12438483 A JP 12438483A JP H0114846 B2 JPH0114846 B2 JP H0114846B2
Authority
JP
Japan
Prior art keywords
drill bit
hole
wedge
diameter
bit body
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
JP58124384A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6015108A (ja
Inventor
Kunio Ajimi
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 JP12438483A priority Critical patent/JPS6015108A/ja
Publication of JPS6015108A publication Critical patent/JPS6015108A/ja
Publication of JPH0114846B2 publication Critical patent/JPH0114846B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/0018—Drills for enlarging a hole
    • B23B51/0045—Drills for enlarging a hole by expanding or tilting the toolhead

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Drilling And Boring (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
JP12438483A 1983-07-07 1983-07-07 コンクリートにあけられた孔の拡径方法とその装置 Granted JPS6015108A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12438483A JPS6015108A (ja) 1983-07-07 1983-07-07 コンクリートにあけられた孔の拡径方法とその装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12438483A JPS6015108A (ja) 1983-07-07 1983-07-07 コンクリートにあけられた孔の拡径方法とその装置

Publications (2)

Publication Number Publication Date
JPS6015108A JPS6015108A (ja) 1985-01-25
JPH0114846B2 true JPH0114846B2 (fr) 1989-03-14

Family

ID=14884070

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12438483A Granted JPS6015108A (ja) 1983-07-07 1983-07-07 コンクリートにあけられた孔の拡径方法とその装置

Country Status (1)

Country Link
JP (1) JPS6015108A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6294200U (fr) * 1985-11-28 1987-06-16
WO2005106191A1 (fr) * 2004-04-23 2005-11-10 Shell International Research Maatschappij B.V. Inhibition du reflux dans un puits chauffe d'un systeme de conversion sur place
MX2011004180A (es) * 2008-10-23 2011-07-29 Obelix Holdings Pty Ltd Dispositivo y metodo elevador para elementos de concreto.
WO2014129119A1 (fr) * 2013-02-19 2014-08-28 Ｆｓテクニカル株式会社 Trépan à diamètre extensible
JP6126408B2 (ja) * 2013-02-19 2017-05-10 Ｆｓテクニカル株式会社 拡径用ドリルビット
JP6126410B2 (ja) * 2013-02-19 2017-05-10 Ｆｓテクニカル株式会社 拡径用ドリルビット

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5427163A (en) * 1977-08-03 1979-03-01 Hitachi Ltd Hook tilting apparatus for crane

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5427163A (en) * 1977-08-03 1979-03-01 Hitachi Ltd Hook tilting apparatus for crane

Also Published As

Publication number Publication date
JPS6015108A (ja) 1985-01-25

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