JPS62185995A - 湿式空圧打撃掘削装置 - Google Patents

湿式空圧打撃掘削装置

Info

Publication number
JPS62185995A
JPS62185995A JP2942286A JP2942286A JPS62185995A JP S62185995 A JPS62185995 A JP S62185995A JP 2942286 A JP2942286 A JP 2942286A JP 2942286 A JP2942286 A JP 2942286A JP S62185995 A JPS62185995 A JP S62185995A
Authority
JP
Japan
Prior art keywords
bit
air
pipe
exhaust
drainage passage
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
JP2942286A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0420475B2 (it
Inventor
浜村　紘之
川崎　博行
太郎 渡辺
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.)
Tone Boring Co Ltd
Original Assignee
Tone Boring 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 Tone Boring Co Ltd filed Critical Tone Boring Co Ltd
Priority to JP2942286A priority Critical patent/JPS62185995A/ja
Publication of JPS62185995A publication Critical patent/JPS62185995A/ja
Publication of JPH0420475B2 publication Critical patent/JPH0420475B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP2942286A 1986-02-13 1986-02-13 湿式空圧打撃掘削装置 Granted JPS62185995A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2942286A JPS62185995A (ja) 1986-02-13 1986-02-13 湿式空圧打撃掘削装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2942286A JPS62185995A (ja) 1986-02-13 1986-02-13 湿式空圧打撃掘削装置

Publications (2)

Publication Number Publication Date
JPS62185995A true JPS62185995A (ja) 1987-08-14
JPH0420475B2 JPH0420475B2 (it) 1992-04-02

Family

ID=12275692

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2942286A Granted JPS62185995A (ja) 1986-02-13 1986-02-13 湿式空圧打撃掘削装置

Country Status (1)

Country Link
JP (1) JPS62185995A (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0280187U (it) * 1988-12-06 1990-06-20

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0280187U (it) * 1988-12-06 1990-06-20

Also Published As

Publication number Publication date
JPH0420475B2 (it) 1992-04-02

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