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DOOR HINGE

  • US 20140109344A1
  • Filed: 12/02/2013
  • Published: 04/24/2014
  • Est. Priority Date: 11/16/2011
  • Status: Active Grant
First Claim
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1. A door hinge comprising:

  • a fixed board fixed to a door frame;

    a cover housing fitted to the upper end of the fixed board;

    an operation frame fixed to a door;

    an operation cam member rotatably disposed inside the cover housing and axially coupled to the operation frame fixed to the door by means of a shaft, so that the operation cam member rotates around the shaft according to the rotating operation of the operation frame;

    a link coupled eccentrically to one side of the operation cam member by means of a second pin and linearly moving according to the rotating operation of the operation cam member;

    a slider coupled to the link by means of a first pin and moving horizontally in forward and backward directions according to the linear movements of the link in the state of being disposed inside the cover housing; and

    a spring fitted to the outer circumferential surface of the slider and compressed according to the horizontal movements of the slider to elastically support the closing operation of the door.

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