A door system and a method of making a door system including a metal door, a metal door frame for the metal door, and one or more door frame seals. The metal door and the metal door frame each include a steel outer surface with a first metal layer in contact with and that encapsulates or covers the steel outer surface, and a second metal layer in contact with and that encapsulates or covers the first metal layer. The first metal layer is different from the second metal layer. The first metal layer can be optional. The door frame seals are located on the metal door frame and provide conductivity between the metal door and the metal door frame. The door system preferably has an acceptable sound transmission class rating and RF shielding properties.

Provided is a shoe care apparatus including a door capable of simplifying an assembly process while reducing material cost. The shoe care apparatus includes: a main body; a care room provided inside the main body and accommodating shoes; and a door opening and closing the care room, wherein the door includes: a front panel forming a front surface of the door, and including a side trim provided on a rear surface of the front panel or a magnet provided on the rear surface of the front panel; a rear body forming a rear surface of the door; and a reinforcement plate positioned between the front panel and the rear body, and detachably coupled with the front panel, and the reinforcement plate includes: a recess portion accommodating at least one portion of the side trim; and a magnet coupling portion coupled with the magnet by a magnetic force of the magnet, and arranged in parallel to the recess portion.

A method is provided for reducing dynamic forces on doors and windows and barriers and their supports. At least one impact receiver 10 is provided to receive the dynamic forces from its source. At least one impact reducer 20 is provided to transfer the dynamic forces from the impact receiver 10 to the supports while undergoing elastic deformation. Elastic deformation of the impact reducer 20 elongates the duration of the dynamic force, and reduces the dynamic forces on the doors and windows and barriers and their supports.

A method is provided for reducing dynamic forces on doors and windows and barriers and their supports. At least one impact receiver 10 is provided to receive the dynamic forces from its source. At least one impact reducer 20 is provided to transfer the dynamic forces from the impact receiver 10 to the supports while undergoing elastic deformation. Elastic deformation of the impact reducer 20 elongates the duration of the dynamic force, and reduces the dynamic forces on the doors and windows and barriers and their supports.

A door has a core that includes a first major surface having one or more first recesses, a second major surface opposite to the first major surface, and fire retardant material such as intumescent material applied to the first recesses and no more than about 20 percent by surface area of a remainder of the first major surface excluding the first recesses. A door skin includes an interior surface, an exterior surface, at least one contoured panel portion establishing a protrusion extending on the interior surface and an opposite depression extending into the exterior surface, and fire retardant material such as intumescent material applied to at least one of the protrusion or the depression and no more than about 20 percent by surface area of the remainders of the interior surface excluding the protrusion and the exterior surface excluding the depression.

The present disclosure relates to a refrigerator capable of replacing an outer panel of a refrigerator. The refrigerator door includes: a frame assembly disposed in a line on both sides to form an edge of the refrigerator door, the frame assembly having a hollow portion formed in a longitudinal direction; a front panel coupled to one side of the frame assembly to form a front surface of the refrigerator door; and a rear panel coupled to the other side of the frame assembly to form a rear surface of the refrigerator door. The frame assembly has coupling holes communicating the hollow portion with an outside in one side facing the front panel, the coupling holes being spaced apart from each other in a vertical direction. A coupling protrusion, at least a portion of which passes through the coupling hole and is accommodated in the hollow portion of the frame assembly, is formed on a rear surface of the front panel.

The present disclosure relates to a refrigerator capable of preventing deformation of a refrigerator door. A refrigerator door includes: a frame assembly disposed in a line on both sides to form an edge of the refrigerator door; a front panel disposed on one side of the frame assembly to form a front surface of the refrigerator door; a rear panel disposed on the other side of the frame assembly to form a rear surface of the refrigerator door; a reinforcing panel disposed between the front panel and the rear panel; and a heat insulating layer formed between the reinforcing panel and the rear panel.

Technology capable of replacing an external panel of a refrigerator is disclosed. A refrigerator door comprises a frame assembly disposed side by side on both sides to form an edge of the refrigerator door and having a hollow portion formed in a longitudinal direction, a front panel coupled to one side of the frame assembly to form a front surface of the refrigerator door, a rear panel coupled to the other side of the frame assembly to form a rear surface of the refrigerator door, and a reinforcing panel disposed between the front panel and the rear panel. The frame assembly or the reinforcing panel has coupling grooves formed to be concave rearward on one side facing the front panel, and the coupling grooves are formed on both sides and spaced apart in a vertical direction, and coupling protrusions, at least a portion of which is accommodated in and fixed to the coupling grooves, are formed on a rear surface of the front panel.

Technology capable of replacing an external panel of a refrigerator is disclosed. A refrigerator door comprises a frame assembly disposed side by side on both sides to form an edge of the refrigerator door and having a hollow portion formed in a longitudinal direction, a front panel coupled to one side of the frame assembly to form a front surface of the refrigerator door, a rear panel coupled to the other side of the frame assembly to form a rear surface of the refrigerator door, and a reinforcing panel disposed between the front panel and the rear panel. The frame assembly or the reinforcing panel has coupling grooves formed to be concave rearward on one side facing the front panel, and the coupling grooves are formed on both sides and spaced apart in a vertical direction, and coupling protrusions, at least a portion of which is accommodated in and fixed to the coupling grooves, are formed on a rear surface of the front panel.

A door includes a door frame, first and second door skins having rectangular outer peripheries and inner openings, and a frameless glazed unit received at the openings. The door skins include exterior surfaces facing away from the door frame and opposite interior surfaces facing and secured to opposite sides of the door frame. The exterior and interior surfaces of the first and second door skins establish integral lips and grooves of the first and second door skins. Opposite sides of the frameless glazed unit directly contact and are sealed by the integral lips and sealant and/or adhesive contained in the grooves of the first and second door skins.