JPH063249Y2 - 穿孔機の元押し装置 - Google Patents

穿孔機の元押し装置

Info

Publication number
JPH063249Y2
JPH063249Y2 JP15666688U JP15666688U JPH063249Y2 JP H063249 Y2 JPH063249 Y2 JP H063249Y2 JP 15666688 U JP15666688 U JP 15666688U JP 15666688 U JP15666688 U JP 15666688U JP H063249 Y2 JPH063249 Y2 JP H063249Y2
Authority
JP
Japan
Prior art keywords
piston
cylinder
pipe
muddy water
inner pipe
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
JP15666688U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0277378U (cs
Inventor
隆志 輪違
Original Assignee
石川島播磨重工業株式会社
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 石川島播磨重工業株式会社 filed Critical 石川島播磨重工業株式会社
Priority to JP15666688U priority Critical patent/JPH063249Y2/ja
Publication of JPH0277378U publication Critical patent/JPH0277378U/ja
Application granted granted Critical
Publication of JPH063249Y2 publication Critical patent/JPH063249Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP15666688U 1988-12-02 1988-12-02 穿孔機の元押し装置 Expired - Lifetime JPH063249Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15666688U JPH063249Y2 (ja) 1988-12-02 1988-12-02 穿孔機の元押し装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15666688U JPH063249Y2 (ja) 1988-12-02 1988-12-02 穿孔機の元押し装置

Publications (2)

Publication Number Publication Date
JPH0277378U JPH0277378U (cs) 1990-06-13
JPH063249Y2 true JPH063249Y2 (ja) 1994-01-26

Family

ID=31435409

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15666688U Expired - Lifetime JPH063249Y2 (ja) 1988-12-02 1988-12-02 穿孔機の元押し装置

Country Status (1)

Country Link
JP (1) JPH063249Y2 (cs)

Also Published As

Publication number Publication date
JPH0277378U (cs) 1990-06-13

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