JPH0242325U - - Google Patents

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Publication number
JPH0242325U
JPH0242325U JP12152188U JP12152188U JPH0242325U JP H0242325 U JPH0242325 U JP H0242325U JP 12152188 U JP12152188 U JP 12152188U JP 12152188 U JP12152188 U JP 12152188U JP H0242325 U JPH0242325 U JP H0242325U
Authority
JP
Japan
Prior art keywords
slider
manhole cover
wire
tip
detection device
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
JP12152188U
Other languages
Japanese (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 JP12152188U priority Critical patent/JPH0242325U/ja
Publication of JPH0242325U publication Critical patent/JPH0242325U/ja
Pending legal-status Critical Current

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Description

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

第１図は本考案に係る装置の一実施例の縦断面
図、第２図は本考案の他の実施例の縦断面図、第
３図は第２図の検出スイツチ側におけるワイヤー
引留め部の動作説明図である。 １……ハウジング、２……ガイド体、３……ス
ライダー、４……ばね、５……ワイヤー、７……
ガイドチユーブ、１１……リミツトスイツチ（検
出スイツチ）。 Fig. 1 is a longitudinal cross-sectional view of one embodiment of the device according to the present invention, Fig. 2 is a longitudinal cross-sectional view of another embodiment of the present invention, and Fig. 3 is a wire retaining portion on the detection switch side of Fig. 2. FIG. 1...Housing, 2...Guide body, 3...Slider, 4...Spring, 5...Wire, 7...
Guide tube, 11...Limit switch (detection switch).

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] マンホール壁等の固定部材に支持されたガイド
体と、前記ガイド体に上下自在に支持されている
スライダーと、前記スライダーの先端が常時はマ
ンホール蓋に当接した待機位置にあり該マンホー
ル蓋が開かれたとき該スライダーの先端が前記待
機位置より上方に突出するように該スライダーを
付勢する付勢手段と、前記スライダーに一端が連
結されているワイヤーと、前記ワイヤーによる牽
引操作で動作する検出スイツチとを備えてなるマ
ンホール蓋の開き検出装置。 A guide body supported by a fixed member such as a manhole wall, a slider supported vertically by the guide body, and a tip of the slider normally in a standby position in contact with a manhole cover so that the manhole cover can be opened. a biasing means for biasing the slider so that the tip of the slider protrudes above the standby position when the slider is moved; a wire having one end connected to the slider; and a detection device operated by a pulling operation using the wire. A manhole cover opening detection device comprising a switch.
JP12152188U 1988-09-16 1988-09-16 Pending JPH0242325U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12152188U JPH0242325U (en) 1988-09-16 1988-09-16

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12152188U JPH0242325U (en) 1988-09-16 1988-09-16

Publications (1)

Publication Number Publication Date
JPH0242325U true JPH0242325U (en) 1990-03-23

Family

ID=31368602

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12152188U Pending JPH0242325U (en) 1988-09-16 1988-09-16

Country Status (1)

Country Link
JP (1) JPH0242325U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5229950B2 (en) * 1972-07-18 1977-08-04
JPS5837455A (en) * 1981-06-04 1983-03-04 ゼネラル・エレクトリツク・カンパニイ Cooling device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5229950B2 (en) * 1972-07-18 1977-08-04
JPS5837455A (en) * 1981-06-04 1983-03-04 ゼネラル・エレクトリツク・カンパニイ Cooling device

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