JPH01151688A - ボーリング用ヘッド - Google Patents

ボーリング用ヘッド

Info

Publication number
JPH01151688A
JPH01151688A JP30928887A JP30928887A JPH01151688A JP H01151688 A JPH01151688 A JP H01151688A JP 30928887 A JP30928887 A JP 30928887A JP 30928887 A JP30928887 A JP 30928887A JP H01151688 A JPH01151688 A JP H01151688A
Authority
JP
Japan
Prior art keywords
cylindrical body
head
window
hole
hollow
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
JP30928887A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0546433B2 (OSRAM
Inventor
Shigeru Noyama
野山　茂
Tsuchio Abe
阿部　槌雄
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.)
SHOKO SANGYO KK
Original Assignee
SHOKO SANGYO KK
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 SHOKO SANGYO KK filed Critical SHOKO SANGYO KK
Priority to JP30928887A priority Critical patent/JPH01151688A/ja
Publication of JPH01151688A publication Critical patent/JPH01151688A/ja
Publication of JPH0546433B2 publication Critical patent/JPH0546433B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP30928887A 1987-12-07 1987-12-07 ボーリング用ヘッド Granted JPH01151688A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30928887A JPH01151688A (ja) 1987-12-07 1987-12-07 ボーリング用ヘッド

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30928887A JPH01151688A (ja) 1987-12-07 1987-12-07 ボーリング用ヘッド

Publications (2)

Publication Number Publication Date
JPH01151688A true JPH01151688A (ja) 1989-06-14
JPH0546433B2 JPH0546433B2 (OSRAM) 1993-07-13

Family

ID=17991190

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30928887A Granted JPH01151688A (ja) 1987-12-07 1987-12-07 ボーリング用ヘッド

Country Status (1)

Country Link
JP (1) JPH01151688A (OSRAM)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011021466A (ja) * 2009-06-15 2011-02-03 Heitaro Fukuda 岩盤用ドリルヘッド
JP2026000596A (ja) * 2024-06-18 2026-01-06 株式会社永井組 杭打ち穴形成用ケーシング

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011021466A (ja) * 2009-06-15 2011-02-03 Heitaro Fukuda 岩盤用ドリルヘッド
JP2026000596A (ja) * 2024-06-18 2026-01-06 株式会社永井組 杭打ち穴形成用ケーシング

Also Published As

Publication number Publication date
JPH0546433B2 (OSRAM) 1993-07-13

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