OPENING-CLOSING DEVICE

An opening/closing device 1 according to the present invention includes a gate 10 that receives a flow of a sewage W in an upright state, and can fall toward a downstream side of the flow and a first spring 52a that generates a force for bringing the gate 10 into an upright state, wherein the first...

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Hauptverfasser:	HASEGAWA KENJI, KOMATSU HIROSHI, YAMANOUCHI KAZUHIRO, ITO IWAO, ITO MOTONOBU
Format:	Patent
Sprache:	eng ; pol
Schlagworte:	CESSPOOLS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING SEWERAGE SEWERS SOIL SHIFTING WATER SUPPLY
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creator	HASEGAWA KENJI KOMATSU HIROSHI YAMANOUCHI KAZUHIRO ITO IWAO ITO MOTONOBU
description	An opening/closing device 1 according to the present invention includes a gate 10 that receives a flow of a sewage W in an upright state, and can fall toward a downstream side of the flow and a first spring 52a that generates a force for bringing the gate 10 into an upright state, wherein the first spring 52 generates a force insufficient for bringing the gate 10 into the upright state if the gate 10 is in a fallen state, and generates a force sufficient for bringing the gate into the upright state if the gate 10 is tilted by an angle equal to or less than a predetermined angle.
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language	eng ; pol
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subjects	CESSPOOLS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING SEWERAGE SEWERS SOIL SHIFTING WATER SUPPLY
title	OPENING-CLOSING DEVICE
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