JP2520768Y2 - 小口径管推進機の先導管 - Google Patents

小口径管推進機の先導管

Info

Publication number
JP2520768Y2
JP2520768Y2 JP1741490U JP1741490U JP2520768Y2 JP 2520768 Y2 JP2520768 Y2 JP 2520768Y2 JP 1741490 U JP1741490 U JP 1741490U JP 1741490 U JP1741490 U JP 1741490U JP 2520768 Y2 JP2520768 Y2 JP 2520768Y2
Authority
JP
Japan
Prior art keywords
diameter pipe
small
fitting
pipe
cylinders
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
JP1741490U
Other languages
English (en)
Japanese (ja)
Other versions
JPH03111692U (enExample
Inventor
嘉彦 村上
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 Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP1741490U priority Critical patent/JP2520768Y2/ja
Publication of JPH03111692U publication Critical patent/JPH03111692U/ja
Application granted granted Critical
Publication of JP2520768Y2 publication Critical patent/JP2520768Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP1741490U 1990-02-26 1990-02-26 小口径管推進機の先導管 Expired - Lifetime JP2520768Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1741490U JP2520768Y2 (ja) 1990-02-26 1990-02-26 小口径管推進機の先導管

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1741490U JP2520768Y2 (ja) 1990-02-26 1990-02-26 小口径管推進機の先導管

Publications (2)

Publication Number Publication Date
JPH03111692U JPH03111692U (enExample) 1991-11-15
JP2520768Y2 true JP2520768Y2 (ja) 1996-12-18

Family

ID=31520625

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1741490U Expired - Lifetime JP2520768Y2 (ja) 1990-02-26 1990-02-26 小口径管推進機の先導管

Country Status (1)

Country Link
JP (1) JP2520768Y2 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3380737B2 (ja) 1998-01-29 2003-02-24 進和技術開発株式会社 掘削用推進機

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3380737B2 (ja) 1998-01-29 2003-02-24 進和技術開発株式会社 掘削用推進機

Also Published As

Publication number Publication date
JPH03111692U (enExample) 1991-11-15

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