Abstract: Present invention is related to a door hinge for opening and closing a door, the door hinge including: a fixing member fixed to the door frame of the oven range; an operating frame that is rotatably connected to the fixing member and is fixed to the door to open and close the door; a hinge bracket configured to rotatably connecting the operating frame to the fixing member, wherein the hinge bracket includes: a plate connected with the inside of the lower end of the operating frame, and a gap holding member having a first end, a second end, and in a shape of a “” at the center thereof for forming a space, wherein the first end of the gap holding member is connected to a lower end of the plate, and the second end of the gap holding member is connected to lower end of the fixing member.

Abstract: The present invention related to a door hinge for opening a door, which includes a cam fitted to the housing and hinged to the door, a roller that is in contact with an outer curved portion of the cam and is pushed backward according to the eccentric rotation of the cam, a damper case coupled with the roller and a pin and moving linearly backward according to the pushing pressure of the roller, a chamber formed at the end of the damper case, a guide tube extending to the end of the damper case in which the chamber is formed recessedly, a damper cover fixed the housing with a fastening pin and accommodating space is formed therein to accommodate the guide tube, a damper installed in the accommodating space of the damper cover, and a rod configured to exert a compressive force of the damper.

Abstract: A door hinge includes a damper attached to a back side of the actuating member, a shaft mounted on the fixing member configured to be movable forward and backward while one end of the shaft is exposed in a direction to the fixing member and moved horizontally backward when contacting with the bumper of the actuating member according to closing of the door, a slide fixed on an upper side of the shaft and moves horizontally backward according to a movement of the shaft, an inclined plane portion provided an upper side of the slide, a platform configured to vertically move up and down on the inclined plane portion of the slide according to the horizontal movement of the slide, and a damper disposed at an upper portion of the platform configured to be pushed up to generate a resistance force to attenuate the closing speed of the door.