JPH0423988Y2 - - Google Patents

Info

Publication number
JPH0423988Y2
JPH0423988Y2 JP1986161509U JP16150986U JPH0423988Y2 JP H0423988 Y2 JPH0423988 Y2 JP H0423988Y2 JP 1986161509 U JP1986161509 U JP 1986161509U JP 16150986 U JP16150986 U JP 16150986U JP H0423988 Y2 JPH0423988 Y2 JP H0423988Y2
Authority
JP
Japan
Prior art keywords
blade
enlarged
rod
expansion
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
JP1986161509U
Other languages
English (en)
Japanese (ja)
Other versions
JPS6371285U (en, 2012
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 JP1986161509U priority Critical patent/JPH0423988Y2/ja
Publication of JPS6371285U publication Critical patent/JPS6371285U/ja
Application granted granted Critical
Publication of JPH0423988Y2 publication Critical patent/JPH0423988Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP1986161509U 1986-10-23 1986-10-23 Expired JPH0423988Y2 (en, 2012)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986161509U JPH0423988Y2 (en, 2012) 1986-10-23 1986-10-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986161509U JPH0423988Y2 (en, 2012) 1986-10-23 1986-10-23

Publications (2)

Publication Number Publication Date
JPS6371285U JPS6371285U (en, 2012) 1988-05-13
JPH0423988Y2 true JPH0423988Y2 (en, 2012) 1992-06-04

Family

ID=31087886

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986161509U Expired JPH0423988Y2 (en, 2012) 1986-10-23 1986-10-23

Country Status (1)

Country Link
JP (1) JPH0423988Y2 (en, 2012)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2808288B2 (ja) * 1988-10-27 1998-10-08 株式会社ジオトップ 地盤掘孔装置
JP7148783B2 (ja) * 2018-04-09 2022-10-06 ジャパンパイル株式会社 掘削機用拡大ヘッド
JP2025077323A (ja) * 2023-11-06 2025-05-19 日本コンクリート工業株式会社 拡大掘削装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6024796Y2 (ja) * 1980-08-29 1985-07-24 三和機材株式会社 掘削用拡張ヘツド
JPS6013120A (ja) * 1983-12-21 1985-01-23 Takechi Koumushiyo:Kk スクリユ−オ−ガ−

Also Published As

Publication number Publication date
JPS6371285U (en, 2012) 1988-05-13

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