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Title:
LIFTABLE SHELTER DOOR
Document Type and Number:
WIPO Patent Application WO/2021/070547
Kind Code:
A1
Abstract:
Provided is a liftable shelter door that can be opened and closed easily in a short time and has high water tightness and excellent durability. A shelter door 1 opens and closes an opening 31 as a door body 10 is lifted and lowered along a guide rail 20 by a lifting/lowering device 50. The opening 31 is provided in a ceiling 30 of a shelter 100. The shelter 100 is made of reinforced concrete, and defines an inner space 110 providing an evacuation space underground 130. A body unit 11 has a central portion with a central protrusion 11a which fits slidably along a direction in which the opening 31 and the guide rail 20 are inclined. The body unit 11 also includes a lifting/lowering table 13 that can be fixed slidably along a receiving support column 12. The lifting/lowering table 13 is positioned above the opening 31 when lifting of the door body 10 is complete, and is positioned in the inner space 110 when the opening 31 is closed.

Inventors:
YANO AKIHIKO (JP)
Application Number:
PCT/JP2020/034250
Publication Date:
April 15, 2021
Filing Date:
September 10, 2020
Export Citation:
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Assignee:
SHELTER JAPAN CO LTD (JP)
International Classes:
E04H9/14; E05F15/56; E05F15/643; E06B5/00; E06B5/18
Attorney, Agent or Firm:
OZAKI Takahiro (JP)
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