JPS5918890A - 地中穿孔ドリルビツト - Google Patents

地中穿孔ドリルビツト

Info

Publication number
JPS5918890A
JPS5918890A JP12620082A JP12620082A JPS5918890A JP S5918890 A JPS5918890 A JP S5918890A JP 12620082 A JP12620082 A JP 12620082A JP 12620082 A JP12620082 A JP 12620082A JP S5918890 A JPS5918890 A JP S5918890A
Authority
JP
Japan
Prior art keywords
base
center line
bearing
branch
cutter
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
JP12620082A
Other languages
English (en)
Japanese (ja)
Other versions
JPS629717B2 (enExample
Inventor
翔 高野
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.)
Sumitomo Metal Mining Co Ltd
Original Assignee
Sumitomo Metal Mining 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 Sumitomo Metal Mining Co Ltd filed Critical Sumitomo Metal Mining Co Ltd
Priority to JP12620082A priority Critical patent/JPS5918890A/ja
Priority to GB08308848A priority patent/GB2123881B/en
Priority to IT48054/83A priority patent/IT1164645B/it
Priority to FR8306173A priority patent/FR2530722B1/fr
Priority to DE3314583A priority patent/DE3314583C2/de
Publication of JPS5918890A publication Critical patent/JPS5918890A/ja
Publication of JPS629717B2 publication Critical patent/JPS629717B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP12620082A 1982-07-20 1982-07-20 地中穿孔ドリルビツト Granted JPS5918890A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP12620082A JPS5918890A (ja) 1982-07-20 1982-07-20 地中穿孔ドリルビツト
GB08308848A GB2123881B (en) 1982-07-20 1983-03-30 Well drilling bit
IT48054/83A IT1164645B (it) 1982-07-20 1983-04-06 Punta per trivellare pozzi
FR8306173A FR2530722B1 (fr) 1982-07-20 1983-04-15 Trepan de forage a molettes avec couteau central
DE3314583A DE3314583C2 (de) 1982-07-20 1983-04-22 Bohrwerkzeug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12620082A JPS5918890A (ja) 1982-07-20 1982-07-20 地中穿孔ドリルビツト

Publications (2)

Publication Number Publication Date
JPS5918890A true JPS5918890A (ja) 1984-01-31
JPS629717B2 JPS629717B2 (enExample) 1987-03-02

Family

ID=14929179

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12620082A Granted JPS5918890A (ja) 1982-07-20 1982-07-20 地中穿孔ドリルビツト

Country Status (1)

Country Link
JP (1) JPS5918890A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7048423B2 (ja) 2018-06-07 2022-04-05 大日本印刷株式会社 商品特定装置、プログラム及び学習方法

Also Published As

Publication number Publication date
JPS629717B2 (enExample) 1987-03-02

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