JPH0184391U - - Google Patents

Info

Publication number
JPH0184391U
JPH0184391U JP1987180477U JP18047787U JPH0184391U JP H0184391 U JPH0184391 U JP H0184391U JP 1987180477 U JP1987180477 U JP 1987180477U JP 18047787 U JP18047787 U JP 18047787U JP H0184391 U JPH0184391 U JP H0184391U
Authority
JP
Japan
Prior art keywords
main body
periphery
collar member
prevention means
rolling prevention
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
JP1987180477U
Other languages
English (en)
Other versions
JPH0640713Y2 (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 JP1987180477U priority Critical patent/JPH0640713Y2/ja
Publication of JPH0184391U publication Critical patent/JPH0184391U/ja
Application granted granted Critical
Publication of JPH0640713Y2 publication Critical patent/JPH0640713Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)

Description

【図面の簡単な説明】
図面は本考案の実施例を示すもので、第1図は
その一部を省略した縦断側面図、第2図及び第3
図は夫々第1図A―A線、B―B線における縦断
正面図である。 1……管主体、2……中心孔、3……小口径孔
、5……周段部、6……カラー部材、9……ケー
ブル収納溝、9a……U字状溝、9b……溝部、
12……蓋体。

Claims (1)

  1. 【実用新案登録請求の範囲】 内部に両端面間に亘つて複数個の小口径孔を
    長さ方向に平行に貫設している管主体の一端外周
    面に段周部を設けると共に他端外周面に管主体端
    面より突出したカラー部材を一体的に取付け、さ
    らに、両端部に互いに係合可能なローリング防止
    手段を設けたことを特徴とする多孔推進管体。 ローリング防止手段は、カラー部材から管主
    体の外周面に全長に亘つて形成した溝の端部同士
    の係合によつて行うようにした実用新案登録請求
    の範囲第1項記載の多孔推進管体。
JP1987180477U 1987-11-26 1987-11-26 多孔推進管体 Expired - Lifetime JPH0640713Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987180477U JPH0640713Y2 (ja) 1987-11-26 1987-11-26 多孔推進管体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987180477U JPH0640713Y2 (ja) 1987-11-26 1987-11-26 多孔推進管体

Publications (2)

Publication Number Publication Date
JPH0184391U true JPH0184391U (ja) 1989-06-05
JPH0640713Y2 JPH0640713Y2 (ja) 1994-10-26

Family

ID=31471995

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987180477U Expired - Lifetime JPH0640713Y2 (ja) 1987-11-26 1987-11-26 多孔推進管体

Country Status (1)

Country Link
JP (1) JPH0640713Y2 (ja)

Also Published As

Publication number Publication date
JPH0640713Y2 (ja) 1994-10-26

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