| 摘要 |
The present invention relates to a folding door and, more specifically, to a folding door capable of stably supporting a load by installing sliding doors on the lower part to be supported. The folding door by the present invention includes a door frame including a lower frame with a lower rail, an upper frame with an upper rail, and lateral frames joined to the left and right sides of the lower and upper frames respectively; the sliding doors folded inside the door frame; a lower roller hinge which includes a hinge unit joined to the lower part of the sliding door and a roller unit connected to the hinge unit and rotated along the lower rail; an upper roller hinge which includes a hinge unit joined to the upper part of the surface where the hinge unit of the lower roller hinge is joined and a roller unit connected to the hinge unit and rotated along the upper rail; and a middle hinge which is joined to the other side of the sliding door where the upper and lower roller hinges are not joined and which escapes the door frame when folding the sliding doors. The sliding doors are installed by the lower frame via the roller unit of the lower roller hinge. |
