JPH0475996B2 - - Google Patents

Info

Publication number
JPH0475996B2
JPH0475996B2 JP4892387A JP4892387A JPH0475996B2 JP H0475996 B2 JPH0475996 B2 JP H0475996B2 JP 4892387 A JP4892387 A JP 4892387A JP 4892387 A JP4892387 A JP 4892387A JP H0475996 B2 JPH0475996 B2 JP H0475996B2
Authority
JP
Japan
Prior art keywords
chuck
cylinder
main
piston
guide rods
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
Application number
JP4892387A
Other languages
English (en)
Japanese (ja)
Other versions
JPS63217099A (ja
Inventor
Yasuki Semura
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.)
Komatsu Zenoah Co
Original Assignee
Komatsu Zenoah Co
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 Komatsu Zenoah Co filed Critical Komatsu Zenoah Co
Priority to JP4892387A priority Critical patent/JPS63217099A/ja
Publication of JPS63217099A publication Critical patent/JPS63217099A/ja
Publication of JPH0475996B2 publication Critical patent/JPH0475996B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP4892387A 1987-03-05 1987-03-05 推進装置 Granted JPS63217099A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4892387A JPS63217099A (ja) 1987-03-05 1987-03-05 推進装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4892387A JPS63217099A (ja) 1987-03-05 1987-03-05 推進装置

Publications (2)

Publication Number Publication Date
JPS63217099A JPS63217099A (ja) 1988-09-09
JPH0475996B2 true JPH0475996B2 (zh) 1992-12-02

Family

ID=12816774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4892387A Granted JPS63217099A (ja) 1987-03-05 1987-03-05 推進装置

Country Status (1)

Country Link
JP (1) JPS63217099A (zh)

Also Published As

Publication number Publication date
JPS63217099A (ja) 1988-09-09

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