JPH04133U - - Google Patents

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Publication number
JPH04133U
JPH04133U JP3773790U JP3773790U JPH04133U JP H04133 U JPH04133 U JP H04133U JP 3773790 U JP3773790 U JP 3773790U JP 3773790 U JP3773790 U JP 3773790U JP H04133 U JPH04133 U JP H04133U
Authority
JP
Japan
Prior art keywords
bell block
fire
manholes
stopper member
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.)
Granted
Application number
JP3773790U
Other languages
English (en)
Other versions
JP2605960Y2 (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 JP1990037737U priority Critical patent/JP2605960Y2/ja
Publication of JPH04133U publication Critical patent/JPH04133U/ja
Application granted granted Critical
Publication of JP2605960Y2 publication Critical patent/JP2605960Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Laying Of Electric Cables Or Lines Outside (AREA)

Description

【図面の簡単な説明】
第1図はこの考案のマンホール用ベルブロツク
を使用して構築したマンホールの一実施例を示す
一部切欠き断面図、第2図はこの考案のマンホー
ル用ベルブロツクの他の実施例を示す要部の拡大
断面図、第3図は従前のベルブロツクを説明する
ための分解斜視図である。 10……マンホール、11……ベルブロツク、
12……12……ケーブル挿通孔、13……
ケーブル、14……ダクト、15……空のダクト
、17……防火栓部材、18……延焼防止材。

Claims (1)

  1. 【実用新案登録請求の範囲】 (1) 予備用の空のダクトの一端部を嵌合保持し
    てなるケーブル挿通孔の開口端部を、不燃性の素
    材で形成した防火栓部材で予め閉塞したことを特
    徴とするマンホール用ベルブロツク。 (2) 請求項1に記載のマンホール用ベルブロツ
    クにおいて、防火栓部材は、その一部に熱によつ
    て発泡する発泡性物質をガスや水分に対して非透
    過性の保護フイルムで被覆してなる延焼防止材を
    担持させたことを特徴とするマンホール用ベルブ
    ロツク。
JP1990037737U 1990-04-09 1990-04-09 ベルブロック用防火栓 Expired - Lifetime JP2605960Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990037737U JP2605960Y2 (ja) 1990-04-09 1990-04-09 ベルブロック用防火栓

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990037737U JP2605960Y2 (ja) 1990-04-09 1990-04-09 ベルブロック用防火栓

Publications (2)

Publication Number Publication Date
JPH04133U true JPH04133U (ja) 1992-01-06
JP2605960Y2 JP2605960Y2 (ja) 2000-09-04

Family

ID=31545118

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990037737U Expired - Lifetime JP2605960Y2 (ja) 1990-04-09 1990-04-09 ベルブロック用防火栓

Country Status (1)

Country Link
JP (1) JP2605960Y2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002031272A (ja) * 2000-07-14 2002-01-31 Inaba Denki Sangyo Co Ltd 耐火シール保持部材

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5723080A (en) * 1980-07-16 1982-02-06 Tokuyama Soda Co Ltd Preparation of ion exchange membrane-electrode catalyst layer bonded body
JPS62122133A (ja) * 1985-11-21 1987-06-03 Nec Corp 溶液塗布による薄膜の形成方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5723080A (en) * 1980-07-16 1982-02-06 Tokuyama Soda Co Ltd Preparation of ion exchange membrane-electrode catalyst layer bonded body
JPS62122133A (ja) * 1985-11-21 1987-06-03 Nec Corp 溶液塗布による薄膜の形成方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002031272A (ja) * 2000-07-14 2002-01-31 Inaba Denki Sangyo Co Ltd 耐火シール保持部材

Also Published As

Publication number Publication date
JP2605960Y2 (ja) 2000-09-04

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term