JPS6033187Y2 - 拡底杭孔の掘削装置 - Google Patents

拡底杭孔の掘削装置

Info

Publication number
JPS6033187Y2
JPS6033187Y2 JP8773581U JP8773581U JPS6033187Y2 JP S6033187 Y2 JPS6033187 Y2 JP S6033187Y2 JP 8773581 U JP8773581 U JP 8773581U JP 8773581 U JP8773581 U JP 8773581U JP S6033187 Y2 JPS6033187 Y2 JP S6033187Y2
Authority
JP
Japan
Prior art keywords
bit
expanded
hole
expanding
outer tube
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
JP8773581U
Other languages
English (en)
Japanese (ja)
Other versions
JPS5726495U (enExample
Inventor
八郎 井上
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 JP8773581U priority Critical patent/JPS6033187Y2/ja
Publication of JPS5726495U publication Critical patent/JPS5726495U/ja
Application granted granted Critical
Publication of JPS6033187Y2 publication Critical patent/JPS6033187Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP8773581U 1981-06-15 1981-06-15 拡底杭孔の掘削装置 Expired JPS6033187Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8773581U JPS6033187Y2 (ja) 1981-06-15 1981-06-15 拡底杭孔の掘削装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8773581U JPS6033187Y2 (ja) 1981-06-15 1981-06-15 拡底杭孔の掘削装置

Publications (2)

Publication Number Publication Date
JPS5726495U JPS5726495U (enExample) 1982-02-10
JPS6033187Y2 true JPS6033187Y2 (ja) 1985-10-03

Family

ID=29449839

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8773581U Expired JPS6033187Y2 (ja) 1981-06-15 1981-06-15 拡底杭孔の掘削装置

Country Status (1)

Country Link
JP (1) JPS6033187Y2 (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59228303A (ja) * 1983-06-10 1984-12-21 日立照明株式会社 電気スタンド
JPS6136915U (ja) * 1984-08-09 1986-03-07 黒井ガラス工業株式会社 テ−ブルスタンド
JPH07107350B2 (ja) * 1993-02-23 1995-11-15 株式会社東京製作所 拡底掘削方法及びその装置

Also Published As

Publication number Publication date
JPS5726495U (enExample) 1982-02-10

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