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.

An improved bi-fold shutter that includes a more efficient coupling mechanism at a hinge point suited to facilitate opening and closing the bi-fold shutter with greater ease. In one embodiment, the shutter may be designed for a window such that the shutter, when closed, is relatively close to the face of the associated window, and when open, forms an awning or overhang. The shutter includes an improved coupling mechanism at a hinge point between a first shutter portion and a second shutter portion. The improved hinge point shifts a direction of force needed to maneuver the shutter when moving the shutter from one position to another. The shift in opening and closing force directions improves the efficiency by which the shutter can be operated. In some embodiments, the shutter may be hand-operated. In other embodiments, the shutter may be powered.

An ejection device includes an ejection element for spreading apart a folding door from a closed position. At least two door wings are arranged in a common closing plane, towards an open position, and the at least two door wings form an angle different from 180 relative to each other. The ejection element can be acted upon by an energy storage member to be manually loaded by an operator, and the ejection device includes a locking device for releasably locking the ejection element against the force of the loaded energy storage member. The locking device can be unlocked by applying pressure to the folding door. The ejection device includes a movably-mounted loading element for loading the energy storage member by folding together the folding door. The ejection element and the loading element are spatially separated constructional units, and the ejection element is a pivotally mounted ejection lever.

A latch assembly connected to the drive unit of a bi-fold door for retaining the bi-fold door secure to a building has elongated straps attached to rotatable latch drums mounted on the outer ends of the drive shaft of the drive unit. Lift drums powered by a motor driven gearbox raise and lower the bi-fold door. Latch assemblies having springs attached to the straps maintain tension on the straps during the opening and closing of the bi-fold door.

A latch assembly connected to the drive unit of a bi-fold door for retaining the bi-fold door secure to a building has elongated straps attached to rotatable latch drums mounted on the outer ends of the drive shaft of the drive unit. Lift drums powered by a motor driven gearbox raise and lower the bi-fold door. Latch assemblies having springs attached to the straps maintain tension on the straps during the opening and closing of the bi-fold door.

A latch assembly connected to the drive unit of a bi-fold door for retaining the bi-fold door secure to a building has elongated straps attached to rotatable latch drums mounted on the outer ends of the drive shaft of the drive unit. Lift drums powered by a motor driven gearbox raise and lower the bi-fold door. Latch assemblies having springs attached to the straps maintain tension on the straps during the opening and closing of the bi-fold door.

Movement system for a closure structure with folding movement, comprising a transmission hinge which connects a first panel to a second panel of the closure structure. The transmission hinge has a first wing fixed to the first panel, a movement lever hinged to the first wing around a first axis, and a second wing which is hinged to the movement lever around a second axis and is fixed to the second panel. The movement system comprises a transmission mechanism which, following the rotation of the first panel, drives the movement lever to rotate around the first axis. The transmission hinge comprises a gear connecting the first wing to the second wing so that, following the rotation of the movement lever, the second wing is actuated by such gear to rotate around the second axis in order to make the second panel rotate with respect to the first panel.

An apparatus and method of a folding door for a cooking appliance. The folding door includes two or more segments hingedly connected. The folding door may vertically fold towards the bottom of the appliance. The outer surface of the folding door may face interiorly towards the one or more cooking compartments of the cooking appliance when in the folded configuration. The cooking appliance may also include one or more tracks guiding the folding door to the folded configuration.

An improved bi-fold shutter that includes a more efficient coupling mechanism at a hinge point suited to facilitate opening and closing the bi-fold shutter with greater ease. In one embodiment, the shutter may be designed for a window such that the shutter, when closed, is relatively close to the face of the associated window, and when open, forms an awning or overhang. The shutter includes an improved coupling mechanism at a hinge point between a first shutter portion and a second shutter portion. The improved hinge point shifts a direction of force needed to maneuver the shutter when moving the shutter from one position to another. The shift in opening and closing force directions improves the efficiency by which the shutter can be operated. In some embodiments, the shutter may be hand-operated. In other embodiments, the shutter may be powered.

The invention relates to a flap bearing having a pivot bearing for coupling a control arm of a prestressed lifting device in an articulated manner to a flap, folding flap, door, or the like of an item of furniture, an installation support of the flap bearing being fastened to the flap, folding flap, door, or the like, and a bearing part of the flap bearing supporting the pivot bearing and being supported on the installation support for displacing or pivoting along a displacement path. According to the invention, a positioning element is displaceably or pivotably supported on the installation support, and the positioning element is disposed in a displacement range of the bearing part along the displacement path.

The invention further relates to a lifting device having such a flap bearing and a method for adjusting such a flap bearing.

The flap bearing can be simply and quickly adjusted to the correct position thereof so that the flap, folding flap, door, or the like closes completely.