JPH0275506U - - Google Patents

Info

Publication number
JPH0275506U
JPH0275506U JP15523288U JP15523288U JPH0275506U JP H0275506 U JPH0275506 U JP H0275506U JP 15523288 U JP15523288 U JP 15523288U JP 15523288 U JP15523288 U JP 15523288U JP H0275506 U JPH0275506 U JP H0275506U
Authority
JP
Japan
Prior art keywords
mandrel
connecting rod
segments
view
mandrel segments
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.)
Granted
Application number
JP15523288U
Other languages
English (en)
Other versions
JPH076481Y2 (ja
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 JP1988155232U priority Critical patent/JPH076481Y2/ja
Publication of JPH0275506U publication Critical patent/JPH0275506U/ja
Application granted granted Critical
Publication of JPH076481Y2 publication Critical patent/JPH076481Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/044—Internal reflections (echoes), e.g. on walls or defects

Landscapes

  • A Measuring Device Byusing Mechanical Method (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Description

【図面の簡単な説明】
第１図は本考案の一実施例である分割式マンド
レルの断面図、第２図はその側面図、第３図はそ
のマンドレルの接合部の拡大断面図、第４図は第
３図の側面図、第５図は連結棒の屈曲部の拡大図
、第６図はマンドレル分割体に切離した状態の正
面図、第７図は連結棒とネジ部材等を示す正面図
、第８図はその連結棒の屈曲形態の一例を示す正
面図、第９図は地下電話ケーブルの埋設構造の具
体例を簡略に示す断面図、第１０図はその増管工
事の具体例を簡略に示す断面図である。 １０：電話ケーブル、１２：保護管路、１８：
ケーブル止め装置、２２：マンドレル、２４：マ
ンドレル分割体、２６：貫通孔、３４：連結棒、
３６：ピン、４４：雌ネジ穴、４６：座板、４８
：ネジ部材、５０：雄ネジ部。

Claims (1)

  1. 【実用新案登録請求の範囲】 直線状管路の一端から挿入されて他端まで通過
    させられることにより前記管路の直線性を検査す
    る軸状のマンドレルであつて、 そのマンドレルを軸方向に所定の寸法をもつて
    分割して複数の短軸状のマンドレル分割体とし、
    かつ、それら複数のマンドレル分割体にわたつて
    軸方向に貫通する貫通孔を形成して、それらのマ
    ンドレル分割体を各貫通孔において連結棒に直列
    に挿入可能とし、またその連結棒はそれらマンド
    レル分割体の接合位置にほぼ対応する複数位置に
    おいてそれぞれ屈曲可能とし、さらにその連結棒
    を介して前記複数のマンドレル分割体を直線的か
    つ一体的に締結する締結手段を設けたことを特徴
    とする管路通過試験用マンドレル。
JP1988155232U 1988-11-29 1988-11-29 管路通過試験用マンドレル Expired - Lifetime JPH076481Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988155232U JPH076481Y2 (ja) 1988-11-29 1988-11-29 管路通過試験用マンドレル

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988155232U JPH076481Y2 (ja) 1988-11-29 1988-11-29 管路通過試験用マンドレル

Publications (2)

Publication Number Publication Date
JPH0275506U true JPH0275506U (ja) 1990-06-08
JPH076481Y2 JPH076481Y2 (ja) 1995-02-15

Family

ID=31432679

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988155232U Expired - Lifetime JPH076481Y2 (ja) 1988-11-29 1988-11-29 管路通過試験用マンドレル

Country Status (1)

Country Link
JP (1) JPH076481Y2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008209239A (ja) * 2007-02-27 2008-09-11 Kubota Corp 管内調査装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59202001A (ja) * 1983-05-02 1984-11-15 Kokudo Bosai Gijutsu Kk 管の屈曲部探知装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59202001A (ja) * 1983-05-02 1984-11-15 Kokudo Bosai Gijutsu Kk 管の屈曲部探知装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008209239A (ja) * 2007-02-27 2008-09-11 Kubota Corp 管内調査装置

Also Published As

Publication number Publication date
JPH076481Y2 (ja) 1995-02-15

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term