This proposal is firmly fixed at the lower edge of the lower door frame of the swing door and is interlocked with the hinge shaft projecting to the upper part of the floor hinge embedded in the floor according to the rotation of the swing door. A hinge door engaging portion having a hinge shaft coupling hole to which a hinge shaft of a floor hinge is coupled, which relates to a hinge door for a hinge door of a hinged door, which is prevented from being separated during use by preventing the engagement state from the lower frame of the door by a wedge pin. It consists of a plate engaging portion arranged in a zigzag manner fixed to the lower door frame by a set screw and formed with a plurality of screw coupling holes, and a plurality of height adjustment pieces that are sandwiched and fixed between the plate engaging part and the lower door frame. In the fixed installation near the corner of the lower frame of the door, A wedge pin coupling hole formed separately at the front position of the hinge shaft coupling portion and the rear plate coupling portion on the central axis of the rod, and a wedge pin having a protrusion formed from an outer circumferential surface vertically to a predetermined length into the wedge pin coupling hole. Characterized in that the configuration to be fixed by insertion.
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