JPH0312990U - - Google Patents

Info

Publication number
JPH0312990U
JPH0312990U JP7045789U JP7045789U JPH0312990U JP H0312990 U JPH0312990 U JP H0312990U JP 7045789 U JP7045789 U JP 7045789U JP 7045789 U JP7045789 U JP 7045789U JP H0312990 U JPH0312990 U JP H0312990U
Authority
JP
Japan
Prior art keywords
casing tube
cutting
casing
cutting edges
cutting edge
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.)
Granted
Application number
JP7045789U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0535195Y2 (US07534539-20090519-C00280.png
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 JP1989070457U priority Critical patent/JPH0535195Y2/ja
Publication of JPH0312990U publication Critical patent/JPH0312990U/ja
Application granted granted Critical
Publication of JPH0535195Y2 publication Critical patent/JPH0535195Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP1989070457U 1989-06-16 1989-06-16 Expired - Lifetime JPH0535195Y2 (US07534539-20090519-C00280.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989070457U JPH0535195Y2 (US07534539-20090519-C00280.png) 1989-06-16 1989-06-16

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989070457U JPH0535195Y2 (US07534539-20090519-C00280.png) 1989-06-16 1989-06-16

Publications (2)

Publication Number Publication Date
JPH0312990U true JPH0312990U (US07534539-20090519-C00280.png) 1991-02-08
JPH0535195Y2 JPH0535195Y2 (US07534539-20090519-C00280.png) 1993-09-07

Family

ID=31606629

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989070457U Expired - Lifetime JPH0535195Y2 (US07534539-20090519-C00280.png) 1989-06-16 1989-06-16

Country Status (1)

Country Link
JP (1) JPH0535195Y2 (US07534539-20090519-C00280.png)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014077274A (ja) * 2012-10-10 2014-05-01 Giken Seisakusho Co Ltd 掘削工具及び掘削工法
JP2017141670A (ja) * 2017-05-24 2017-08-17 株式会社技研製作所 掘削工法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5989183U (ja) * 1982-12-08 1984-06-16 株式会社松沢基工 掘削ケ−シングの刃
JPS6040545U (ja) * 1983-08-30 1985-03-22 日立建機株式会社 ケ−シングパイプ先端掘削刃取付構造
JPS6040544U (ja) * 1983-08-30 1985-03-22 日立建機株式会社 ケ−シングパイプ先端掘削刃取付構造
JPS62228591A (ja) * 1985-12-12 1987-10-07 日進基礎工業株式会社 竪孔掘削工法とこれに用いるケ−シングパイプ
JPS63217093A (ja) * 1987-03-04 1988-09-09 三菱重工業株式会社 全旋回式ボ−リング機
JPS6437593U (US07534539-20090519-C00280.png) * 1987-08-22 1989-03-07

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6040544B2 (ja) * 1978-09-29 1985-09-11 日本パ−オキサイド株式会社 繊維物質の脆化あるいは脆化退色防止法
JPS6040545B2 (ja) * 1981-09-11 1985-09-11 帝人株式会社 ゴム構造物補強用ポリエステル繊維の製造方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5989183U (ja) * 1982-12-08 1984-06-16 株式会社松沢基工 掘削ケ−シングの刃
JPS6040545U (ja) * 1983-08-30 1985-03-22 日立建機株式会社 ケ−シングパイプ先端掘削刃取付構造
JPS6040544U (ja) * 1983-08-30 1985-03-22 日立建機株式会社 ケ−シングパイプ先端掘削刃取付構造
JPS62228591A (ja) * 1985-12-12 1987-10-07 日進基礎工業株式会社 竪孔掘削工法とこれに用いるケ−シングパイプ
JPS63217093A (ja) * 1987-03-04 1988-09-09 三菱重工業株式会社 全旋回式ボ−リング機
JPS6437593U (US07534539-20090519-C00280.png) * 1987-08-22 1989-03-07

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014077274A (ja) * 2012-10-10 2014-05-01 Giken Seisakusho Co Ltd 掘削工具及び掘削工法
JP2017141670A (ja) * 2017-05-24 2017-08-17 株式会社技研製作所 掘削工法

Also Published As

Publication number Publication date
JPH0535195Y2 (US07534539-20090519-C00280.png) 1993-09-07

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