JPS621342Y2 - - Google Patents

Info

Publication number
JPS621342Y2
JPS621342Y2 JP10588681U JP10588681U JPS621342Y2 JP S621342 Y2 JPS621342 Y2 JP S621342Y2 JP 10588681 U JP10588681 U JP 10588681U JP 10588681 U JP10588681 U JP 10588681U JP S621342 Y2 JPS621342 Y2 JP S621342Y2
Authority
JP
Japan
Prior art keywords
cam
expanded
outer tube
bit
cam plate
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
JP10588681U
Other languages
English (en)
Japanese (ja)
Other versions
JPS5816290U (ja
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 filed Critical
Priority to JP10588681U priority Critical patent/JPS5816290U/ja
Publication of JPS5816290U publication Critical patent/JPS5816290U/ja
Application granted granted Critical
Publication of JPS621342Y2 publication Critical patent/JPS621342Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP10588681U 1981-07-16 1981-07-16 拡底杭孔掘削装置 Granted JPS5816290U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10588681U JPS5816290U (ja) 1981-07-16 1981-07-16 拡底杭孔掘削装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10588681U JPS5816290U (ja) 1981-07-16 1981-07-16 拡底杭孔掘削装置

Publications (2)

Publication Number Publication Date
JPS5816290U JPS5816290U (ja) 1983-02-01
JPS621342Y2 true JPS621342Y2 (US20100012521A1-20100121-C00001.png) 1987-01-13

Family

ID=29900402

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10588681U Granted JPS5816290U (ja) 1981-07-16 1981-07-16 拡底杭孔掘削装置

Country Status (1)

Country Link
JP (1) JPS5816290U (US20100012521A1-20100121-C00001.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019078157A (ja) * 2018-09-20 2019-05-23 株式会社アクティブ 孔拡径装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019078157A (ja) * 2018-09-20 2019-05-23 株式会社アクティブ 孔拡径装置

Also Published As

Publication number Publication date
JPS5816290U (ja) 1983-02-01

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