JPS5884479U - duct - Google Patents

duct

Info

Publication number
JPS5884479U
JPS5884479U JP18021581U JP18021581U JPS5884479U JP S5884479 U JPS5884479 U JP S5884479U JP 18021581 U JP18021581 U JP 18021581U JP 18021581 U JP18021581 U JP 18021581U JP S5884479 U JPS5884479 U JP S5884479U
Authority
JP
Japan
Prior art keywords
duct
uneven
hollow block
duct according
uneven surface
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
JP18021581U
Other languages
Japanese (ja)
Inventor
河崎　正樹
Original Assignee
ヤマウ総合開発株式会社
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 by ヤマウ総合開発株式会社 filed Critical ヤマウ総合開発株式会社
Priority to JP18021581U priority Critical patent/JPS5884479U/en
Publication of JPS5884479U publication Critical patent/JPS5884479U/en
Pending legal-status Critical Current

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  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本案のダクトを示す側面図、第２図は第１図Ａ
−Ａ線による縦断面図である。 １・・・両端開口セメントコンクリート中空ブロック、
２・・・吸放熱用凹凸面。−Figure 1 is a side view showing the proposed duct, Figure 2 is Figure 1A
- It is a longitudinal cross-sectional view taken along the A line. 1... Cement concrete hollow block with openings at both ends,
2...Rough surface for heat absorption and radiation. −

Claims (3)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）両端開口セメントコンクリート中空ブロック１で
あって、中空部内周面に吸放熱用凹凸面２を形成してな
るダクト。(1) A duct comprising a cement concrete hollow block 1 with openings at both ends, and an uneven surface 2 for heat absorption and radiation formed on the inner peripheral surface of the hollow part. （２）上記中空ブロック１が押出成形コンクリート管で
ある実用新案登録請求の範囲第１項記載のダクト。(2) The duct according to claim 1, wherein the hollow block 1 is an extruded concrete pipe. （３）　　上記凹凸面２が凹凸波形に形成されている実
用新案登録請求の範囲第１項記載のダクト。(3) The duct according to claim 1, wherein the uneven surface 2 is formed in an uneven wave shape.
JP18021581U 1981-12-02 1981-12-02 duct Pending JPS5884479U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18021581U JPS5884479U (en) 1981-12-02 1981-12-02 duct

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18021581U JPS5884479U (en) 1981-12-02 1981-12-02 duct

Publications (1)

Publication Number Publication Date
JPS5884479U true JPS5884479U (en) 1983-06-08

Family

ID=29976608

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18021581U Pending JPS5884479U (en) 1981-12-02 1981-12-02 duct

Country Status (1)

Country Link
JP (1) JPS5884479U (en)

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