JPS5223502A - Hydraulic hole bottom striking device for boring - Google Patents

Hydraulic hole bottom striking device for boring

Info

Publication number
JPS5223502A
JPS5223502A JP9993075A JP9993075A JPS5223502A JP S5223502 A JPS5223502 A JP S5223502A JP 9993075 A JP9993075 A JP 9993075A JP 9993075 A JP9993075 A JP 9993075A JP S5223502 A JPS5223502 A JP S5223502A
Authority
JP
Japan
Prior art keywords
boring
hole bottom
striking device
hydraulic hole
bottom striking
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.)
Pending
Application number
JP9993075A
Other languages
Japanese (ja)
Inventor
Keiji Kumamoto
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.)
KOUKEN SHISUI KOUGIYOU KK
Koken Boring Machine Co Ltd
Original Assignee
KOUKEN SHISUI KOUGIYOU KK
Koken Boring Machine 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 KOUKEN SHISUI KOUGIYOU KK, Koken Boring Machine Co Ltd filed Critical KOUKEN SHISUI KOUGIYOU KK
Priority to JP9993075A priority Critical patent/JPS5223502A/en
Publication of JPS5223502A publication Critical patent/JPS5223502A/en
Pending legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP9993075A 1975-08-18 1975-08-18 Hydraulic hole bottom striking device for boring Pending JPS5223502A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9993075A JPS5223502A (en) 1975-08-18 1975-08-18 Hydraulic hole bottom striking device for boring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9993075A JPS5223502A (en) 1975-08-18 1975-08-18 Hydraulic hole bottom striking device for boring

Publications (1)

Publication Number Publication Date
JPS5223502A true JPS5223502A (en) 1977-02-22

Family

ID=14260452

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9993075A Pending JPS5223502A (en) 1975-08-18 1975-08-18 Hydraulic hole bottom striking device for boring

Country Status (1)

Country Link
JP (1) JPS5223502A (en)

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