JPS63116554U - - Google Patents

Info

Publication number
JPS63116554U
JPS63116554U JP704187U JP704187U JPS63116554U JP S63116554 U JPS63116554 U JP S63116554U JP 704187 U JP704187 U JP 704187U JP 704187 U JP704187 U JP 704187U JP S63116554 U JPS63116554 U JP S63116554U
Authority
JP
Japan
Prior art keywords
lid plate
center line
plate
divide
manhole
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
JP704187U
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 JP704187U priority Critical patent/JPS63116554U/ja
Publication of JPS63116554U publication Critical patent/JPS63116554U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】
図面は、本考案の実施例を示すもので、第1図
は蓋板裏面の平面図、第2図は第1図のA―A断
面図、第3図は説明図、第4図は他の実施例の裏
面の平面図である。 1…蓋板、2,3…主リブ、4,5,6,7…
副リブ、11…中心線、12,13…中心線を3
等分する位置。

Claims (1)

    【実用新案登録請求の範囲】
  1. 円盤状をなす鋳鉄よりなる蓋板1において、該
    蓋板1の裏面に蓋板1の中心線11をほぼ3等分
    せる位置12,13において中心線11に直交す
    るよう主リブ2,3を形成せしめたことを特徴と
    するマンホールなどの蓋板。
JP704187U 1987-01-22 1987-01-22 Pending JPS63116554U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP704187U JPS63116554U (ja) 1987-01-22 1987-01-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP704187U JPS63116554U (ja) 1987-01-22 1987-01-22

Publications (1)

Publication Number Publication Date
JPS63116554U true JPS63116554U (ja) 1988-07-27

Family

ID=30790127

Family Applications (1)

Application Number Title Priority Date Filing Date
JP704187U Pending JPS63116554U (ja) 1987-01-22 1987-01-22

Country Status (1)

Country Link
JP (1) JPS63116554U (ja)

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