JPH0388079U - - Google Patents

Info

Publication number
JPH0388079U
JPH0388079U JP14962989U JP14962989U JPH0388079U JP H0388079 U JPH0388079 U JP H0388079U JP 14962989 U JP14962989 U JP 14962989U JP 14962989 U JP14962989 U JP 14962989U JP H0388079 U JPH0388079 U JP H0388079U
Authority
JP
Japan
Prior art keywords
tube
gap
synthetic resin
air core
resin inner
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
JP14962989U
Other languages
English (en)
Other versions
JPH0735181Y2 (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 JP1989149629U priority Critical patent/JPH0735181Y2/ja
Publication of JPH0388079U publication Critical patent/JPH0388079U/ja
Application granted granted Critical
Publication of JPH0735181Y2 publication Critical patent/JPH0735181Y2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Rigid Pipes And Flexible Pipes (AREA)

Description

【図面の簡単な説明】
第１図は本考案にかかる排水管の１実施例をあ
らわす一部切欠いて断面であらわす斜視図である
。 １……排水管、２……外管、３……内管、４…
…断熱吸音材層、３２……リブ（空気芯形成手段
）。

Claims (1)

    【実用新案登録請求の範囲】
  1. 大径の金属製外管の内側に所望間隔の間隙を有
    するように小径の合成樹脂製内管が挿通されてい
    て、前記間隙に断熱吸音材層が形成されており、
    かつ、前記合成樹脂製内管の内周面に、排水を管
    壁面に沿つて螺旋状に流下するように導き管内に
    中央に空気芯を形成する空気芯形成手段が設けら
    れていることを特徴とする排水管。
JP1989149629U 1989-12-25 1989-12-25 排水管 Expired - Fee Related JPH0735181Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989149629U JPH0735181Y2 (ja) 1989-12-25 1989-12-25 排水管

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989149629U JPH0735181Y2 (ja) 1989-12-25 1989-12-25 排水管

Publications (2)

Publication Number Publication Date
JPH0388079U true JPH0388079U (ja) 1991-09-09
JPH0735181Y2 JPH0735181Y2 (ja) 1995-08-09

Family

ID=31696008

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989149629U Expired - Fee Related JPH0735181Y2 (ja) 1989-12-25 1989-12-25 排水管

Country Status (1)

Country Link
JP (1) JPH0735181Y2 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102580892B1 (ko) * 2022-12-29 2023-09-20 (주)뉴보텍 유속증가장치와 이를 구비한 배관

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS48100957A (ja) * 1972-04-04 1973-12-19
JPS5129715A (ja) * 1974-09-06 1976-03-13 Nippon Steel Corp Sanjukokan

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS48100957A (ja) * 1972-04-04 1973-12-19
JPS5129715A (ja) * 1974-09-06 1976-03-13 Nippon Steel Corp Sanjukokan

Also Published As

Publication number Publication date
JPH0735181Y2 (ja) 1995-08-09

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees