UP AND DOWN TYPE FOLDING DOOR

摘要

The present invention relates to a vertically-foldable door device capable of vertically folding a door to open and close by being mounted inside a storage closet capable of receiving various kinds of goods and easily opening and closing the door even in a small place. The purpose of the present invention is to open and close the door gently. To achieve the same, in the vertically-foldable door device capable of opening and closing the door by vertically folding an upper door (10) and a lower door (20), the present invention includes supporting members (50) installed on both inner lateral surfaces of the storage closet (1) respectively; cylinders (70) formed on the supporting members (50) respectively; a pair of arms (60) of which one end is connected to the cylinder (70) and the other end is connected to the inner surface of the lower door (20); connection brackets (80) formed on the inner surface of the lower door (20) and connected to one end of the arms (60); and dampers (90) formed on the lower side of the supporting members (50) and absorbing impact applied to the arms (60). The arm (60) is characterized by including a linear body unit (61); a first bent unit (62) bent to the inside of the storage closet (1) from one end of the body unit (61) and including one end connected to the cylinder (70); and a second bent unit (63) bent to the inside of the storage closet (1) from the other end of the body unit (61) and connected to the connection bracket (80) formed on the inner surface of the lower door (20).