Abstract: The present invention relates to an installation structure of an elastic gasket attached and installed as a sealing member to a moving window glass supporting insulation bracket in a sliding window having a two-sided supporting frame window chassis, and more specifically, it relates to an installation structure of a sealing member (e.g. an elastic gasket) that is installed to provide a sealing function between a glass supporting insulation bracket that directly supports a glass panel of the moving window from the top or bottom and a window frame provided with a sliding rail, when opening and closing the sliding window having only two-sided supporting frame that support both sides of the glass window constituting the sliding window.

Abstract: The present invention relates to a heat insulation and support structure between a moving window (sliding window) and a fixed window constituting a sliding window system, or between a moving window and another moving window. More particularly, the present invention relates to a window chassis insulating structure and a glass panel supporting (mounting) structure including technical improvements in a center bar portion in which a window chassis of a movable window and a fixed window (or other movable window) overlap each other when a sliding window of a two-side supporting frame window having a two-sided supporting frame for supporting only both sides of a glass window constituting a sliding window system, is closed.

Abstract: The present invention relates to a device capable of guiding a stable rotational actuation between a first support bracket fixedly connected to a supporting frame side of a door frame and a second support bracket fixedly connected to the door side in a gear hinge unit constituting a rotating door, specifically, in a door hinge in which a gear hinge unit is provided between the first support bracket fixedly connected to the support frame side of the door frame and the second support bracket fixedly connected to the door side, by minimizing the compressive stress generated in the lower gear hinge unit under a neutral axis of the door and the tensile stress generated in the upper gear hinge unit above the neutral axis of the door by the rotational moment applied to the gear hinge unit due to the load of the door, it is possible not only to secure and maintain the correct opening/closing performance of the door, but also to minimize damage to parts caused by friction or friction noise in the door hinge.

Abstract: The present invention provides an annular roller device for a sliding window/door, which is proposed as a roller device having a new structure wherein the roller device installed under a door sash can move a sliding window/door having heavy weight, and can maximize the open glass portion of the window/door by minimizing the height of the space required to install the roller device, thereby providing a more open view. The roller device has a structure in which, even when a rail installed on a window frame is not horizontal or the bottom portion of a window is not completely flat, all multiple rolling members, which constitute a ring-shaped rolling unit wound around a load-bearing plate (1220) comprising segment bodies (1221, 1222) rotatably connected to each other by a pivot pin (1225) extending therethrough, form contact points with the rail or the bottom portion, and thus each of the rolling members is prevented from being loaded with excessive weight.

Abstract: The present invention relates to a heat insulation and support structure between a moving window (sliding window) and a fixed window constituting a sliding window system, or between a moving window and another moving window. More particularly, the present invention relates to a window chassis insulating structure and a glass panel supporting (mounting) structure including technical improvements in a center bar portion in which a window chassis of a movable window and a fixed window (or other movable window) overlap each other when a sliding window of a two-side supporting frame window having a two-sided supporting frame for supporting only both sides of a glass window constituting a sliding window system, is closed.

Abstract: The present invention relates to an installation structure of an elastic gasket attached and installed as a sealing member to a moving window glass supporting insulation bracket in a sliding window having a two-sided supporting frame window chassis, and more specifically, it relates to an installation structure of a sealing member (e.g. an elastic gasket) that is installed to provide a sealing function between a glass supporting insulation bracket that directly supports a glass panel of the moving window from the top or bottom and a window frame provided with a sliding rail, when opening and closing the sliding window having only two-sided supporting frame that support both sides of the glass window constituting the sliding window.

Abstract: The present invention relates to a thermal insulation structure of a door frame in which a moving window (sliding window) constituting a sliding window system is installed, and more particularly, a two-side supporting frame window supporting both sides of a glass window constituting a sliding window system, more particularly, relates to an insulating structure in a side section of a door frame into which the side portion of the sliding window that is moved when closing the sliding window of the supporting frame window type is pocketed, that is, the insulating structure of the side section of the door frame.

Abstract: The present invention relates to a device capable of guiding a stable rotational actuation between a first support bracket fixedly connected to a supporting frame side of a door frame and a second support bracket fixedly connected to the door side in a gear hinge unit constituting a rotating door, specifically, in a door hinge in which a gear hinge unit is provided between the first support bracket fixedly connected to the support frame side of the door frame and the second support bracket fixedly connected to the door side, by minimizing the compressive stress generated in the lower gear hinge unit under a neutral axis of the door and the tensile stress generated in the upper gear hinge unit above the neutral axis of the door by the rotational moment applied to the gear hinge unit due to the load of the door, it is possible not only to secure and maintain the correct opening/closing performance of the door, but also to minimize damage to parts caused by friction or friction noise in the door hinge.

Abstract: The present invention relates to a hinged door locking device and, more particularly, to a hinged door locking device comprising a rotatable lever installed on a door frame separately from a main locking device generally used for security, wherein a side to be opened by rotation in the hinged door is brought into tight contact with the door frame at multiple points in the longitudinal direction by operating the lever. Thus, the hinged door locking device is configured to readily maintain the tight contact and has high usability as an auxiliary locking device.

Abstract: The present invention relates to a door guide frame of a detachable segment structure for sliding windows and doors, in which in order to improve heat insulating performance of the door guide frame, the door guide frame is divided into an outer body portion and an inner body portion and a thermal break is disposed therebetween, and even when a second pocket guide segment accommodated in the inner side surface of the inner body portion and a third pocket guide segment accommodated in the inner side surface of the outer body portion are separated from an upper cap region of an aluminum material and have a lower leg region formed of a thermal break material, a supporting means capable of providing a good supporting force for the lower leg region formed of such thermal break material is provided without affecting the heat insulating performance of the door guide frame.

Abstract: The present invention provides an annular roller device for a sliding window/door, which is proposed as a roller device having a new structure wherein the roller device installed under a door sash can move a sliding window/door having heavy weight, and can maximize the open glass portion of the window/door by minimizing the height of the space required to install the roller device, thereby providing a more open view. The roller device has a structure in which, even when a rail installed on a window frame is not horizontal or the bottom portion of a window is not completely flat, all multiple rolling members, which constitute a ring-shaped rolling unit wound around a load-bearing plate (1220) comprising segment bodies (1221, 1222) rotatably connected to each other by a pivot pin (1225) extending therethrough, form contact points with the rail or the bottom portion, and thus each of the rolling members is prevented from being loaded with excessive weight.

Abstract: The present invention relates to an installation structure of a glass fixing gasket and a window glass panel fixing bracket, which fixes a window glass panel of a fixed window included in a sliding window system which comprises a segmented window frame and, more specifically, to an installation structure of a glass fixing gasket and a window glass panel fixing bracket, wherein the glass fixing gasket and the window glass panel fixing bracket are installed between a window frame portion which supports three sides (an upper surface, a lower surface, and one external side surface that is not a middle bar side surface) of a fixed window included in a sliding window and a window glass panel provided as a double-pane, in order to provide a sealing function for preventing ventilation and a function of stably fixing the window glass panel against high wind pressure (wind pressure resistance), and moreover, to ensure maximum heat insulation performance.

Abstract: The present invention relates to a door guide frame of a detachable segment structure for sliding windows and doors, in which in order to improve heat insulating performance of the door guide frame, the door guide frame is divided into an outer body portion and an inner body portion and a thermal break is disposed therebetween, and even when a second pocket guide segment accommodated in the inner side surface of the inner body portion and a third pocket guide segment accommodated in the inner side surface of the outer body portion are separated from an upper cap region of an aluminum material and have a lower leg region formed of a thermal break material, a supporting means capable of providing a good supporting force for the lower leg region formed of such thermal break material is provided without affecting the heat insulating performance of the door guide frame.

Abstract: The present invention relates to a hinged door locking device and, more particularly, to a hinged door locking device comprising a rotatable lever installed on a door frame separately from a main locking device generally used for security, wherein a side to be opened by rotation in the hinged door is brought into tight contact with the door frame at multiple points in the longitudinal direction by operating the lever. Thus, the hinged door locking device is configured to readily maintain the tight contact and has high usability as an auxiliary locking device.