JPH055992B2 - - Google Patents

Info

Publication number
JPH055992B2
JPH055992B2 JP1671288A JP1671288A JPH055992B2 JP H055992 B2 JPH055992 B2 JP H055992B2 JP 1671288 A JP1671288 A JP 1671288A JP 1671288 A JP1671288 A JP 1671288A JP H055992 B2 JPH055992 B2 JP H055992B2
Authority
JP
Japan
Prior art keywords
rod
ring
unevenness
hook
female thread
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 - Fee Related
Application number
JP1671288A
Other languages
English (en)
Japanese (ja)
Other versions
JPH01192993A (ja
Inventor
Toshio Ooi
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.)
Furukawa Co Ltd
Original Assignee
Furukawa Co Ltd
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 Furukawa Co Ltd filed Critical Furukawa Co Ltd
Priority to JP1671288A priority Critical patent/JPH01192993A/ja
Publication of JPH01192993A publication Critical patent/JPH01192993A/ja
Publication of JPH055992B2 publication Critical patent/JPH055992B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP1671288A 1988-01-27 1988-01-27 ロッド脱落防止装置 Granted JPH01192993A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1671288A JPH01192993A (ja) 1988-01-27 1988-01-27 ロッド脱落防止装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1671288A JPH01192993A (ja) 1988-01-27 1988-01-27 ロッド脱落防止装置

Publications (2)

Publication Number Publication Date
JPH01192993A JPH01192993A (ja) 1989-08-03
JPH055992B2 true JPH055992B2 (enrdf_load_stackoverflow) 1993-01-25

Family

ID=11923878

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1671288A Granted JPH01192993A (ja) 1988-01-27 1988-01-27 ロッド脱落防止装置

Country Status (1)

Country Link
JP (1) JPH01192993A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104179462A (zh) * 2014-09-01 2014-12-03 无锡中地地质装备有限公司 地质勘探用钻杆的连接结构

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19608980C2 (de) * 1996-03-08 1998-05-07 Tracto Technik Vorrichtung zum Bohren im Erdreich
KR100955402B1 (ko) * 2008-03-28 2010-04-29 백남진 링 비트의 체결구조
EP2868861B1 (en) * 2013-10-30 2018-10-17 Sandvik Mining and Construction Oy Release assembly and method of forming a drilling tool
WO2024166197A1 (ja) * 2023-02-07 2024-08-15 国立研究開発法人海洋研究開発機構 パイプコネクタ、パイプ接続システム及びパイプ接続方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104179462A (zh) * 2014-09-01 2014-12-03 无锡中地地质装备有限公司 地质勘探用钻杆的连接结构

Also Published As

Publication number Publication date
JPH01192993A (ja) 1989-08-03

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Legal Events

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