JPH0242325U - - Google Patents
Info
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 4
Landscapes
- Audible And Visible Signals (AREA)
Description
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)
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.
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)
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 |
-
1988
- 1988-09-16 JP JP12152188U patent/JPH0242325U/ja active Pending
Patent Citations (2)
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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