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 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 building having a security and safety function of the present invention may include: a house body that is configured to include an inner panel that defines an interior space, an outer panel that surrounds the inner panel to be spaced a predetermined distance from the outer surface of the inner panel, a heat insulating material that is installed between the inner panel and the outer panel, and an air flow passage that is formed between the inner panel and the outer panel to facilitate a fluid flow therebetween and to block the heat transfer with respect to the outside; an indoor entrance door configured to be installed on one side of the house body for entering the interior space; and an outdoor entrance door configured to be installed on the house body in front of the indoor entrance door.

The building can control the entry of children or outsides into the rooftop of the building without permission from the user in order to thereby prevent safety accidents and in order to thereby improve a security function.

A folding device as room closure has a frame and a chain of panels arranged therein. The panels are pivotably connected by alternate first and second hinge arrangements and foldable from a stretched-out closed position into an open accordion fold arrangement. First hinge arrangements are guided on guide rails of the frame; second hinge arrangements are deflected away from the frame. In the closed position, the panels are sealed relative to each other and to the frame by frame seals extending at least partially along a sealing plane. An adjusting strip in front of a lateral frame part is adjustable to adjust a spacing between adjustable strip and lateral frame part for spatial adaption to an adjacent panel. The adjusting strip has a sealing contact surface aligned with the sealing plane and resting against a seal arranged on the lateral frame part and extending into the guide rails.

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.

A motor control system comprises a motor control circuit, a non-transitory storage medium and a processing circuitry. The storage medium is configured to store a current threshold profile that is indicative of a current requirement of the motor control circuit for an operational cycle of a motor. The processing circuitry is configured to adjust the stored current threshold profile based on a change to the operational cycle of the motor (e.g., from standard to non-standard).

Provided is a folding apparatus of folding door with three sides, which is folded or unfolded like a folding screen and is configured to be easily moved to the inside as well as to the outside when the folding door is folded. The folding apparatus includes a first upper moving means, a first lower moving means, a second upper moving means, a second lower moving means, a first rotating pulley, a second rotating pulley, a third rotating pulley, a fourth rotating pulley, a fifth rotating pulley, and a sixth rotating pulley, wherein the second upper moving means and the second lower moving means move together right and left by an equal interval by first and second wires.

A door module for a vehicle lavatory that includes a bi-fold door having a first panel and a second panel each having an inner surface and an outer surface. The first and second panels are pivotably connected together by a living hinge. The living hinge includes a hinge member that extends between first and second securing members, wherein the first securing member extends along and is attached to an inner edge of the first panel and the second securing member extends along and is attached to an inner edge of the second panel.

An accordion type folding door system having a plurality of elongated panels hinged together along their longitudinal side edges into a pleated or zig zag arrangement, the folding panels being interconnected by a hinge assembly. The hinge assembly is disposed between and interconnects a pair of adjacent panels, each of the pair of interconnected adjacent panels including a side edge having longitudinal groove and an extension flange, wherein the hinge assembly includes a hinge pin and a plurality of hinge knuckles disposed vertically end-to-end in alternating arrangement on the hinge pin, the hinge knuckle having a tubular central opening for accepting the hinge pin, an outwardly extending tongue for connecting to a corresponding longitudinal groove in an adjacent panel in a tongue and groove connection, and an outwardly flared wedge that extends beyond the extension flanges of the panels, whereby the wedge cooperates with the extension flanges to limit angular folding extension to a maximum desired angle.

A foldable dual-layered wall structure is positionable in a stowed condition and in a deployed condition. The wall structure includes a first foldable layer having at least a first pair of panels and a first joint rotatably connecting the panels of the at least a first pair of panels. A second foldable layer is positioned adjacent to the first foldable layer. The second foldable layer includes at least a second pair of panels and a second joint rotatably connecting the panels of the at least a second pair of panels. The wall structure is structured such that the first joint is positioned directly opposite a panel of the at least a second pair of panels and the second joint is positioned directly opposite a panel of the at least a first pair of panels when the wall structure is in the deployed condition.