Title:
DOOR HINGE
Document Type and Number:
WIPO Patent Application WO/2020/145583
Kind Code:
A1
Abstract:
A door hinge for a water-proof door, an explosion-proof door, a fire-proof door, and a pressure-proof door has a shaft for supporting the hinge wherein, when water pressure or gas explosion pressure acts on a door, the shaft moves towards a door frame and presses a gasket so as to achieve efficient sealing. When water pressure or gas explosion pressure acts on the door, the shaft for supporting the hinge moves towards the door frame and presses the gasket so as to achieve efficient sealing. According to the present invention, when water pressure or gas explosion pressure acts on the door, spring elasticity is vertically applied to the shaft for supporting the hinge so as to enhance airtightness between the door and the door frame, and thus align the center of the door hinge.
Inventors:
HWANG JAE HO (KR)
Application Number:
PCT/KR2020/000145
Publication Date:
July 16, 2020
Filing Date:
January 03, 2020
Export Citation:
Assignee:
ESDASAN CO LTD (KR)
International Classes:
E05F1/12; E05D7/00
Foreign References:
| KR101655254B1 | 2016-09-07 | |||
| KR20070108674A | 2007-11-13 | |||
| KR970021613A | 1997-05-28 | |||
| KR20110101304A | 2011-09-16 | |||
| JP2009535543A | 2009-10-01 |
Attorney, Agent or Firm:
HMP IP GROUP (KR)
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