Disclosed herein is an insulated door which is thermally insulating, low maintenance and easy to operate, even where the door is large and/or constitutes multiple panels. The insulated door is surrounded by a door frame. The door may comprise one or more insulated panels, where each of the panels has four edges, and at least one edge is insulated with a thermal seal. The door has at least one lower lifting hinge and at least one upper sliding hinge connecting the door to the door frame. An exterior mounted first latch may be included for maintaining the insulated door in a closed position.

A hinge assembly for a folding closure includes a plurality of elongated, planar panels, each of which has a pair of parallel sides, and flanges on each side with the flanges on one side extending in one direction perpendicular to a plane of the panel and the flanges on the other side extending in a second direction opposite to the one direction; and a hinge for pivotally connecting panels in side by side relationship to each other, the hinge including an elongated body having a generally triangular cross section, generally C-shaped grooves extending the length of the body proximate two adjacent corners of the body, the grooves opening in opposite directions for receiving the flanges of adjacent panels and permitting rotation of the panels about a longitudinal axis of the hinge between closure open and closed position, and opposed stops at the open outer ends of the grooves for limiting rotation of the panels between the open and closed position.

A bi-fold door pin brace braces the exposed shafts of bi-fold door pins against the force exerted on the pin assemblies by door movement out of alignment with the track. The bi-fold door pin brace has a header mounting plate generally defines a generally planar surface and is configured to mount into a door header, ceiling, or the like. A coupling plate extends from the header mounting plate in a plane angularly offset therefrom. A bi-fold pin shaft bracing plate defines a third generally planar surface that extends from the coupling plate in a plane generally parallel to the header mounting plate. The bi-fold pin shaft bracing plate is configured to engage with and provide support to a bi-fold pin shaft, and can be used in conjunction with or as part of an assembly with a bi-fold door stop.

A coupling device for coupling folding elements of a folding device has first and second coupling elements that lock the folding elements relative to each other. The coupling device has a locking device with sliding element whose rearward part, when the second folding element is not closed, is in a rest position in which a locking member of the sliding element engages a locking receptacle of the first coupling element when the coupling elements are latched. In the rest position, the locking member contacts a guiding contour of the second coupling element and unlocking of the locking member from the locking receptacle by pulling on the coupling elements is prevented. When the second folding element is closed, the rearward part of the sliding element contacts the frame causing the locking member to move along the guiding contour out of the locking receptacle; the locking action is released.

A movable wall system includes a plurality of movable wall panels including a first movable wall panel and a second moveable wall panel rotatably coupled together through at least one hinge. The movable wall system further includes a biasing system which biases the first movable wall panel and the second movable wall panel into an arrangement wherein a panel face of the first movable wall panel and a panel face of the second moveable wall panel are generally parallel.

A hinge for a bi-fold door is integrated with a pair of stiles. Each stile has a hinge flange integrated to the stile. Opposing stiles with opposing and aligned hinge flanges collectively create an integral hinge assembly that may be useful in thermal doors employing one or more thermal breaks.

A leading end assembly for a movable partition may include a frame, an exterior skin coupled to the frame for covering a leading surface and two opposing side surfaces of the frame, the exterior skin including a leading member forming at least a portion of a leading surface of the leading end assembly and at least two side members, each side member being formed separately from the leading member and forming at least a portion of a lateral side portion of the leading end assembly. Movable partitions may include leading end assemblies and leading end assemblies may be formed by related methods.

A fixation device for limiting a gap between a first construction component and a second construction component relative to which the first construction component is movable has first and second fitting parts attached to the first and second construction components, respectively. The first fitting part has a fixation projection with first end and opposed second end. The first end is pivotable about a fixation axis fixed at the first construction component. The fixation projection is pretensioned so as to pivot the second end away from the first construction component. The second fitting part has a guiding surface and a holding element. Fixation projection and guiding surface interact such that, when the construction parts are moved toward each other, the second end glides along the guiding surface toward the holding element and catches therein. A folding device of construction components is provided with such fixation devices.