JPH0579795B2 - - Google Patents

Info

Publication number
JPH0579795B2
JPH0579795B2 JP10157985A JP10157985A JPH0579795B2 JP H0579795 B2 JPH0579795 B2 JP H0579795B2 JP 10157985 A JP10157985 A JP 10157985A JP 10157985 A JP10157985 A JP 10157985A JP H0579795 B2 JPH0579795 B2 JP H0579795B2
Authority
JP
Japan
Prior art keywords
rock
piston
cylinder
rod
attached
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.)
Expired - Lifetime
Application number
JP10157985A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61261597A (ja
Inventor
Takashi Okada
Tsutomu Nakanishi
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.)
Kumagai Gumi Co Ltd
Original Assignee
Kumagai Gumi 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 Kumagai Gumi Co Ltd filed Critical Kumagai Gumi Co Ltd
Priority to JP10157985A priority Critical patent/JPS61261597A/ja
Publication of JPS61261597A publication Critical patent/JPS61261597A/ja
Publication of JPH0579795B2 publication Critical patent/JPH0579795B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Earth Drilling (AREA)
JP10157985A 1985-05-15 1985-05-15 さく岩装置におけるフ−トパツト装置 Granted JPS61261597A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10157985A JPS61261597A (ja) 1985-05-15 1985-05-15 さく岩装置におけるフ−トパツト装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10157985A JPS61261597A (ja) 1985-05-15 1985-05-15 さく岩装置におけるフ−トパツト装置

Publications (2)

Publication Number Publication Date
JPS61261597A JPS61261597A (ja) 1986-11-19
JPH0579795B2 true JPH0579795B2 (en, 2012) 1993-11-04

Family

ID=14304300

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10157985A Granted JPS61261597A (ja) 1985-05-15 1985-05-15 さく岩装置におけるフ−トパツト装置

Country Status (1)

Country Link
JP (1) JPS61261597A (en, 2012)

Also Published As

Publication number Publication date
JPS61261597A (ja) 1986-11-19

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