Sluice gate
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United States of America Patent
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Oct 10, 2017
Grant Date -
Aug 6, 2015
app pub date -
Sep 4, 2012
filing date -
Sep 4, 2012
priority date (Note) -
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Abstract
A laterally sliding type opening/closing gate of a torsion structure of reasonable cost is implemented. The gate includes: the torsion structure having a closed cross-section consisting of a thin wall installed such that it may cross a sluice and be composed such that its cross-section may make an in-plane rotation around a restriction point on the cross-section and that a torsion moment generated by an applied load and reaction force on the restriction point is transmitted to its terminal due to its torsion rigidity; and a rail that is installed such that it may cross the sluice; and a plurality of axle type supports that has a function of a restriction point and moves along the rail.
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