Patent ID: 9157262
Filing Date: 2015-10-13
Classification: D06F,E05D,E05F,E05Y,Y10T

Abstract:
1. A door hinge for a top-loading appliance having a door disposed at an upper side of the appliance, the door hinge comprising: a fixed board configured to fix to a door frame; a cover housing fitted to the fixed board; an operation frame configured to fix to a door of the appliance; an operation cam member rotatably disposed inside the cover housing and coupled to the operation frame by means of a shaft, so that the operation cam member rotates about the axis of the shaft together with the operation frame in response to the rotating operation of the door; a link coupled to one side of the operation cam member by means of a pin and linearly moving in response to the rotating operation of the operation cam member; a slider coupled to the link by means of a pin and moving linearly in forward and backward directions in response to the linear movements of the link while being disposed inside the cover housing, the slider configured to move in the backward direction away from the operation cam member as the door closes from a generally-vertical open position to a generally-horizontal close position, and in the forward direction toward the operation cam member as the door opens from the generally-horizontal close position to the generally-vertical open position; and a spring fitted to the outer circumferential surface of the slider, the spring configured to be compressed during an entire closing stroke of the door from the generally-vertical open position to the generally-horizontal close position of the door, in response to the linear movement of the slider in the backward direction away from the operation cam member to apply an elastic spring force to the door to close the door slowly during the closing operation of the door.