JPH0430142U - - Google Patents

Info

Publication number
JPH0430142U
JPH0430142U JP7103890U JP7103890U JPH0430142U JP H0430142 U JPH0430142 U JP H0430142U JP 7103890 U JP7103890 U JP 7103890U JP 7103890 U JP7103890 U JP 7103890U JP H0430142 U JPH0430142 U JP H0430142U
Authority
JP
Japan
Prior art keywords
exit
entrance
wire mesh
ventilation fan
freely
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
JP7103890U
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 JP7103890U priority Critical patent/JPH0430142U/ja
Publication of JPH0430142U publication Critical patent/JPH0430142U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】
第1図乃至第3図は、開いた状態の本案の実施
例を示す斜視図、閉じた状態の平面図および開い
た状態の側面図である。 A……マンホール内落下防止仮蓋装置、1……
嵌込外枠、2……中仕切枠、3……出入口、4…
…出入用金網蓋、5a,5b,5c,13a,1
3b……ヒンジ、6,7……縁枠部、8,15,
16,17……金網、9……換気扇挿入口、10
,11……並行口枠、12……換気扇挿入口、1
4……囲繞縁枠、18……持手、19a,19b
,19c,20……係止突片。

Claims (1)

    【実用新案登録請求の範囲】
  1. マンホール口に内嵌自在な嵌込外枠内を、中仕
    切枠で片側領域に人間の出入り出来る大きさ余地
    の出入口を区画し、当該出入口を閉鎖する出入用
    金網蓋を前記中仕切枠に擺動自在に蝶着する一方
    、他片側領域の所要部所に区画した換気扇挿入口
    を閉鎖する換気扇用金網蓋を擺動自在に蝶着する
    とともに当該換気扇挿入口以外の残りの領域を金
    網張りしたことを特徴とするマンホール内落下防
    止仮蓋装置。
JP7103890U 1990-07-05 1990-07-05 Pending JPH0430142U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7103890U JPH0430142U (ja) 1990-07-05 1990-07-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7103890U JPH0430142U (ja) 1990-07-05 1990-07-05

Publications (1)

Publication Number Publication Date
JPH0430142U true JPH0430142U (ja) 1992-03-11

Family

ID=31607715

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7103890U Pending JPH0430142U (ja) 1990-07-05 1990-07-05

Country Status (1)

Country Link
JP (1) JPH0430142U (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5850593B1 (ja) * 2015-10-05 2016-02-03 株式会社 ユーキ建工 マンホール作業用安全ガード
JP2019203289A (ja) * 2018-05-22 2019-11-28 中部美化企業株式会社 仮設蓋

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5935447B2 (ja) * 1977-12-27 1984-08-29 株式会社東芝 集積回路装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5935447B2 (ja) * 1977-12-27 1984-08-29 株式会社東芝 集積回路装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5850593B1 (ja) * 2015-10-05 2016-02-03 株式会社 ユーキ建工 マンホール作業用安全ガード
JP2019203289A (ja) * 2018-05-22 2019-11-28 中部美化企業株式会社 仮設蓋

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