JPH0430124U - - Google Patents

Info

Publication number
JPH0430124U
JPH0430124U JP7248190U JP7248190U JPH0430124U JP H0430124 U JPH0430124 U JP H0430124U JP 7248190 U JP7248190 U JP 7248190U JP 7248190 U JP7248190 U JP 7248190U JP H0430124 U JPH0430124 U JP H0430124U
Authority
JP
Japan
Prior art keywords
outer layer
nonwoven fabric
large number
layer
underdrain
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
JP7248190U
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 JP7248190U priority Critical patent/JPH0430124U/ja
Publication of JPH0430124U publication Critical patent/JPH0430124U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Rigid Pipes And Flexible Pipes (AREA)
  • Laminated Bodies (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
例1の一部切欠側面図、第2図は一部拡大断面図
、第3図は例2の一部切欠側面図、第4図はその
一部拡大断面図、第5図は製造方法を説明するた
めの断面図である。 1……管壁、2……重合延伸フイルム、3……
細孔、4……不織布。

Claims (1)

  1. 【実用新案登録請求の範囲】 延伸方向に多数の並行な切目をもつ合成樹脂
    延伸フイルムを2枚以上、その切目方向が直交す
    るように重合融着させることによつて形成された
    多数の細孔を有するフイルムを管壁の外層とし、
    該外層の内周面に厚さが0.5mm以下の薄い不織
    布を内層として一体に重合してなることを特徴と
    する暗渠排水管。 前記フイルムを管壁の内外層とし、その間に
    前記不織布を中間層として介在させていることを
    特徴とする請求項記載の暗渠排水管。
JP7248190U 1990-07-06 1990-07-06 Pending JPH0430124U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7248190U JPH0430124U (ja) 1990-07-06 1990-07-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7248190U JPH0430124U (ja) 1990-07-06 1990-07-06

Publications (1)

Publication Number Publication Date
JPH0430124U true JPH0430124U (ja) 1992-03-11

Family

ID=31610454

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7248190U Pending JPH0430124U (ja) 1990-07-06 1990-07-06

Country Status (1)

Country Link
JP (1) JPH0430124U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002038460A (ja) * 2000-07-26 2002-02-06 Totaku Kogyo Kk バーチカルドレンパイプ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002038460A (ja) * 2000-07-26 2002-02-06 Totaku Kogyo Kk バーチカルドレンパイプ

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