JPH044993U - - Google Patents

Info

Publication number
JPH044993U
JPH044993U JP4313090U JP4313090U JPH044993U JP H044993 U JPH044993 U JP H044993U JP 4313090 U JP4313090 U JP 4313090U JP 4313090 U JP4313090 U JP 4313090U JP H044993 U JPH044993 U JP H044993U
Authority
JP
Japan
Prior art keywords
longitudinal direction
propellant
protrusions
propulsion
propulsion device
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
JP4313090U
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 JP4313090U priority Critical patent/JPH044993U/ja
Publication of JPH044993U publication Critical patent/JPH044993U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)

Description

【図面の簡単な説明】
図面は本考案に係る推進工法用の推進装置の実
施例を示し、第1図は要部の縦断面図、第2図は
第1図の−線断面図、第3図は第1図の−
線断面図、第4図は押込装置をも含めた全体側
面図である。 1A……推進体、1B……掘削部、17A,1
7B……突条体、18A,18B……管路。

Claims (1)

    【実用新案登録請求の範囲】
  1. 長手方向視の断面が円形又はほぼ円形である推
    進体1Aの先端部に、推進体長手方向に沿う軸芯
    周りで回動駆動自在な掘削部1Bを備えた推進工
    法用の推進装置であつて、前記推進体1Aの外側
    面に沿つて、長手方向に延びる突条体17A,1
    7Bを設けるとともに、この突条体17A,17
    B内に管路18A,18Bを形成してある推進工
    法用の推進装置。
JP4313090U 1990-04-23 1990-04-23 Pending JPH044993U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4313090U JPH044993U (ja) 1990-04-23 1990-04-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4313090U JPH044993U (ja) 1990-04-23 1990-04-23

Publications (1)

Publication Number Publication Date
JPH044993U true JPH044993U (ja) 1992-01-17

Family

ID=31555283

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4313090U Pending JPH044993U (ja) 1990-04-23 1990-04-23

Country Status (1)

Country Link
JP (1) JPH044993U (ja)

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