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US 11,384,498 B2Granted
Sluice gate
AssigneesHiroshi Tereta, Hiroko Terata
InventorsHiroshi Terata, Hiroko Terata, Shoko Kukita, Keiichi Terata, Yoko Terata
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AssigneesHiroshi Tereta, Hiroko Terata
InventorsHiroshi Terata, Hiroko Terata, Shoko Kukita, Keiichi Terata, Yoko Terata
Estimating the term…
In order to achieve a swing motion type retractable floodgate using a cost-effective torsion structure, the present invention is provided with a swing pivot support mechanism, a friction shoe, a door bottom support seat, and an operation step during a tidal flow. The support mechanism allows free rotation about three axes and restricts motion in the three axis directions, and a pulling force acts on the support mechanism. The friction shoe dissipates tidal energy during closing operations in a tidal flow to a level that prevents damage to the door. Reactive forces are endured by reducing impact forces with the flexibility and strength of the door bottom support seat. Suitable tidal energy dissipation is performed by selecting friction force strength in the operation step.
A sluice gate comprising a door mounted vertical to water flow or vertical to the course of boats and ships, said door being moored in a storage position when said gate is completely opened, and said door moving to a completely closed position in a floating state when said gate is completely closed by swing motion about an axis, said axis extending vertically to a horizontal water surface, characterized in that
A sluice gate comprising a door mounted vertical to water flow or vertical to the course of boats and ships, said door being moored in a storage position when said gate is completely opened, and said door moving to a completely closed position in a floating state when said gate is completely closed by swing motion about an axis, said axis extending vertically to a horizontal water surface, characterized in that
Dependencies are inferred from the claim text.