JPS576089A - Bit for vertical hole excavation - Google Patents

Bit for vertical hole excavation

Info

Publication number
JPS576089A
JPS576089A JP8027480A JP8027480A JPS576089A JP S576089 A JPS576089 A JP S576089A JP 8027480 A JP8027480 A JP 8027480A JP 8027480 A JP8027480 A JP 8027480A JP S576089 A JPS576089 A JP S576089A
Authority
JP
Japan
Prior art keywords
bit
vertical hole
hole excavation
excavation
vertical
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
JP8027480A
Other languages
Japanese (ja)
Other versions
JPS5742795B2 (en
Inventor
Masami Wada
Shiyuuichi Ajiro
Yasuaki Ishikawa
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.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery 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 Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP8027480A priority Critical patent/JPS576089A/en
Publication of JPS576089A publication Critical patent/JPS576089A/en
Publication of JPS5742795B2 publication Critical patent/JPS5742795B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP8027480A 1980-06-16 1980-06-16 Bit for vertical hole excavation Granted JPS576089A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8027480A JPS576089A (en) 1980-06-16 1980-06-16 Bit for vertical hole excavation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8027480A JPS576089A (en) 1980-06-16 1980-06-16 Bit for vertical hole excavation

Publications (2)

Publication Number Publication Date
JPS576089A true JPS576089A (en) 1982-01-12
JPS5742795B2 JPS5742795B2 (en) 1982-09-10

Family

ID=13713693

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8027480A Granted JPS576089A (en) 1980-06-16 1980-06-16 Bit for vertical hole excavation

Country Status (1)

Country Link
JP (1) JPS576089A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6023590A (en) * 1983-07-19 1985-02-06 日立建機株式会社 Ground drilling bit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6023590A (en) * 1983-07-19 1985-02-06 日立建機株式会社 Ground drilling bit

Also Published As

Publication number Publication date
JPS5742795B2 (en) 1982-09-10

Similar Documents

Publication Publication Date Title
GB2084631B (en) Earth boring bit
GB2088443B (en) Drill bit
ZA808114B (en) Rock bit
GB2074058B (en) Rock drill
JPS57209389A (en) Borer for bore hole for mining
GB2088437B (en) Rock drill
GB2091784B (en) Arrangement for full hole drilling
DE3263203D1 (en) Rock drill
GB2085049B (en) Earth boring bit
JPS56153095A (en) Underground drilling
JPS56167091A (en) Earth drill
GB2071736B (en) Rest for drilling rig
JPS56115494A (en) Earth auger bit
JPS56156384A (en) Bit for vertical hole excavation
JPS56156385A (en) Bit for vertical hole excavation
JPS576089A (en) Bit for vertical hole excavation
JPS56156386A (en) Bit for vertical hole excavation
JPS57193691A (en) Earth boring bit
JPS576095A (en) Vertical hole excavator
GB8332921D0 (en) Signalling within borehole while drilling
JPS5774494A (en) Rock excavator
JPS56142991A (en) Drilling bit
JPS56142989A (en) Drilling bit
JPS579995A (en) Underground drill
JPS5789090A (en) Earth drill