Title:
止水ユニット
Document Type and Number:
Japanese Patent JP7257720
Kind Code:
B2
Abstract:
To provide a water cut-off unit which allows a railway vehicle to pass while adopting general one as a packing.SOLUTION: A water cut-off unit comprises: a first water storage portion 20 provided in a direction crossing a railway line by removing a railway rail, disposed in a width direction of a passage, dug down from a ground surface or a floor face, and comprising a first water discharge port 21; a water cut-off plate 40 stored inside the first water storage portion, and ascending by obtaining buoyance from stored water when water of the amount more than discharging property of the first water discharge port flows into the first water storage portion to be stored; a first rail portion 44 provided on an upper face of the water cut-off plate and substituting for a part where the railway rail is removed; guide portions 50 erected at both ends of the first water storage portion in a longer direction and preventing the ascending water cut-off plate from tilting and falling; and packings stuck to at least one of a face facing the water cut-off plate on an indoor side of the first water storage portion and the guide portion, and a face facing the indoor side of the water cut-off plate.SELECTED DRAWING: Figure 4
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Inventors:
Kayoko Ito
Application Number:
JP2022153372A
Publication Date:
April 14, 2023
Filing Date:
September 27, 2022
Export Citation:
Assignee:
Hokusei Corporation
International Classes:
E02B7/22
Domestic Patent References:
| JP2014163124A | ||||
| JP2015113603A | ||||
| JP62108494U | ||||
| JP59160446U |
Attorney, Agent or Firm:
Sakaoka Nori
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