JPS62102084U - - Google Patents

Info

Publication number
JPS62102084U
JPS62102084U JP19533885U JP19533885U JPS62102084U JP S62102084 U JPS62102084 U JP S62102084U JP 19533885 U JP19533885 U JP 19533885U JP 19533885 U JP19533885 U JP 19533885U JP S62102084 U JPS62102084 U JP S62102084U
Authority
JP
Japan
Prior art keywords
layer
foam layer
synthetic resin
utility
model registration
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
JP19533885U
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 JP19533885U priority Critical patent/JPS62102084U/ja
Publication of JPS62102084U publication Critical patent/JPS62102084U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Rigid Pipes And Flexible Pipes (AREA)

Description

【図面の簡単な説明】
第1図は、本考案の一実施例を説明するための
下半分省略縦断面図であり、第2図は、第1図の
一部の拡大断面図である。 1……三層パイプ、2……内層、3……外層、
4……中間層、5……低発泡層、6……高発泡層

Claims (1)

  1. 【実用新案登録請求の範囲】 (1) パイプの内層及び外層は中実であり、その
    中間に形成される中間層は発泡倍率が1.1〜1
    .8倍の低発泡層と、2〜4倍の高発泡層とが管
    軸方向に、交互に所定間隔を保つて形成されてな
    る合成樹脂製三層パイプ。 (2) 少くとも両端部が低発泡層よりなる実用新
    案登録請求の範囲第(1)項記載の合成樹脂製三層
    パイプ。
JP19533885U 1985-12-19 1985-12-19 Pending JPS62102084U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19533885U JPS62102084U (ja) 1985-12-19 1985-12-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19533885U JPS62102084U (ja) 1985-12-19 1985-12-19

Publications (1)

Publication Number Publication Date
JPS62102084U true JPS62102084U (ja) 1987-06-29

Family

ID=31153137

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19533885U Pending JPS62102084U (ja) 1985-12-19 1985-12-19

Country Status (1)

Country Link
JP (1) JPS62102084U (ja)

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