JPS63128420U - - Google Patents

Info

Publication number
JPS63128420U
JPS63128420U JP2037787U JP2037787U JPS63128420U JP S63128420 U JPS63128420 U JP S63128420U JP 2037787 U JP2037787 U JP 2037787U JP 2037787 U JP2037787 U JP 2037787U JP S63128420 U JPS63128420 U JP S63128420U
Authority
JP
Japan
Prior art keywords
frame body
small
target
construction accuracy
tool
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
JP2037787U
Other languages
English (en)
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 filed Critical
Priority to JP2037787U priority Critical patent/JPS63128420U/ja
Publication of JPS63128420U publication Critical patent/JPS63128420U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)

Description

【図面の簡単な説明】
第1図は本考案の1実施例に係る小口径管の施
工精度測定用具の正面図、第2図はその縦断面図
、第3図は上記1実施例に係る小口径管の施工精
度測定用具を用いる小口径管の施工精度測定の要
領を示す側面図、第4図は本考案の他の実施例に
係る小口径管の施工精度測定用具の正面図、第5
図は第4図の施工精度測定用具を使用する小口径
管の施工精度測定の要領を示す側面図である。第
6図は従来例を示す図である。 10……枠体、13……ターゲツト、14……
錘体。

Claims (1)

    【実用新案登録請求の範囲】
  1. 土中に挿入される小口径管の端部あるいはこれ
    を牽引する推進機の後端筒状部に内嵌される枠体
    と、この枠体内に該枠体の軸心回りに回転可能に
    支持されたターゲツトと、このターゲツトを所定
    の回転位相に安定させるための錘体とを備えるこ
    とを特徴とする小口径管の施工精度測定用具。
JP2037787U 1987-02-14 1987-02-14 Pending JPS63128420U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2037787U JPS63128420U (ja) 1987-02-14 1987-02-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2037787U JPS63128420U (ja) 1987-02-14 1987-02-14

Publications (1)

Publication Number Publication Date
JPS63128420U true JPS63128420U (ja) 1988-08-23

Family

ID=30815831

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2037787U Pending JPS63128420U (ja) 1987-02-14 1987-02-14

Country Status (1)

Country Link
JP (1) JPS63128420U (ja)

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