JPH0270039U - - Google Patents

Info

Publication number
JPH0270039U
JPH0270039U JP14742988U JP14742988U JPH0270039U JP H0270039 U JPH0270039 U JP H0270039U JP 14742988 U JP14742988 U JP 14742988U JP 14742988 U JP14742988 U JP 14742988U JP H0270039 U JPH0270039 U JP H0270039U
Authority
JP
Japan
Prior art keywords
insertion hole
closure body
manhole
back side
iron
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
JP14742988U
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 JP14742988U priority Critical patent/JPH0270039U/ja
Publication of JPH0270039U publication Critical patent/JPH0270039U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】
第1図は本考案マンホール蓋をマンホール枠に
嵌合した態様を示す縦断正面図、第2図は鉄蓋を
一部切欠して表わした要部の拡大平面図、第3図
は要部の拡大縦断正面図、第4図はマンホールを
開けるときの操作説明図である。 図中、1…鉄蓋、2…差込孔、3…閉塞体、4
…屈曲槓杆、5…マンホール枠、6…固定掛鈎、
7…可動掛鈎、8…重錘、9…閉塞鍔。

Claims (1)

    【実用新案登録請求の範囲】
  1. 鉄蓋に操作杆用の差込孔を貫通開穿し、この差
    込孔に嵌入脱出せしめる閉塞体を鉄蓋裏側に軸着
    せる屈曲横杆の一端に設け、かつその横杆の他端
    にマンホール枠の固定掛鈎に掛外しする可動掛鈎
    を重錘と共に垂下し、前記閉塞体の根元に前記差
    込孔周辺の鉄蓋裏側に係止して差込孔と閉塞体と
    の隙間を閉塞する閉塞鍔を周設したマンホール蓋
JP14742988U 1988-11-11 1988-11-11 Pending JPH0270039U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14742988U JPH0270039U (ja) 1988-11-11 1988-11-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14742988U JPH0270039U (ja) 1988-11-11 1988-11-11

Publications (1)

Publication Number Publication Date
JPH0270039U true JPH0270039U (ja) 1990-05-28

Family

ID=31417820

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14742988U Pending JPH0270039U (ja) 1988-11-11 1988-11-11

Country Status (1)

Country Link
JP (1) JPH0270039U (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS615407U (ja) * 1984-06-15 1986-01-13 ハウニ−工業株式会社 ブルドン管式計測器
JPS627446B2 (ja) * 1982-08-04 1987-02-17 Kubota Ltd

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS627446B2 (ja) * 1982-08-04 1987-02-17 Kubota Ltd
JPS615407U (ja) * 1984-06-15 1986-01-13 ハウニ−工業株式会社 ブルドン管式計測器

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