A slat for a rolling shutter is provided that is formed as a single walled, continuous bent sheet. The slat includes a body having a hook-shaped engaging track at a first end, and a receiving track at the second end comprising a guard member and a hook-shaped lip member that form a pocket for receiving the engaging track of another slat. The guard member includes a portion of the sheet that is bent over on itself. The lip member extends from the guard member, and is spaced apart from the guard member to define an aperture that is sized and shaped to receive the engaging track of the other slat.

A bulletproof roller door (1) has a door leaf (2) includes bendably connected door leaf elements (21) and defines a door leaf plane in roller door closed state, the door leaf being moveable between an open position and a closed position via a drive (5). The door leaf elements have cavities (25) with an antiballistic insert (26) insertable therein. The inserts of adjacent door leaf elements overlap in the closed state of the roller door (1). At least one antiballistic defense strip (30, 31) is set at an angle in relation to the insert and covers a gap between the inserts of adjacent door leaf elements in the closed state and is arranged in the cavity of the door leaf element. It is thus achieved that the roller door (1) possess high-speed properties, has a lowest weight possible, and also offers protection against ballistic effects.

A locking system for a rolling shutter that includes a plurality of rolling shutter slats, comprises a guide track with a U-shaped guide channel having a channel base, and first and second channel walls. A lock bar is coupled to the rolling shutter slats. In a locked position, the lock bar extends transverse to the channel base. The lock bar has a notch covered by a breakaway wall that is aligned with the channel base in the locked position. The lock bar may be slidably received in a sleeve that is positioned in the guide channel to increase resistance to torsional forces on the locking system. In an alternative embodiment, the locking system comprises a unitary extruded body, a lock bar, and a handle. A longitudinal channel is formed integrally in the body for receiving the lock bar and handle. The lock bar is slidable in the channel between an extended locked position and a retracted unlocked position. The handle is positioned in the channel to stop the retraction of the lock bar at the unlocked position.

A utility slat for a rolling shutter comprises a single-walled slat body with a U-shaped channel formed in the slat body that defines an interior space for receiving additional features, such as a rolling shutter locking device. A cover is removably coupled to the slat body to enclose the interior space.

A rolling shutter comprises first and second slats, each slat having inner and outer sides, a first edge with an engaging track, and a second edge with a receiving track. The receiving track comprises a lip member and a guard member that are spaced apart to form an aperture that is sized and shaped to receive the engaging track of another slat. The engaging track of the first slat is received in the receiving track of the second slat to form an articulating hinge. The hinge has a vertical position with the maximum extension of the first and second slats, and the hinge is rotatable from the vertical position in a backward direction. In one embodiment, the engaging track is hook-shaped and comprises a bend that curves toward the inner side, and a rib positioned at the first edge that projects from the inner side. The hinge is rotatable from the vertical position in the forward direction, and the rib of the first slat contacts the lip member of the second slat to stop the forward rotation of the hinge.

A closure may include a door configured to seal an opening. The door may include a section with an internal cavity. The closure may also include a core within a first portion of the internal cavity of the section. The core may be configured to expand from a relaxed state to an expanded state and provide a seal between the door and an edge of the opening when the core is in the expanded state.

A slat for a rolling shutter is provided that is formed as a single walled, continuous bent sheet. The slat includes a body having a hook-shaped engaging track at a first end, and a receiving track at the second end comprising a guard member and a hook-shaped lip member that form a pocket for receiving the engaging track of another slat. The guard member includes a portion of the sheet that is bent over on itself. The lip member extends from the guard member, and is spaced apart from the guard member to define an aperture that is sized and shaped to receive the engaging track of the other slat.

A closing element for roller shutters comprising a central portion designed to be arranged, in use, according to a closing plane of an access opening of a room to at least partly close the access opening, and at least two connecting portions located on opposite edges of the central portion, each of which designed for connection of the closing element with at least one other closing element. Each connecting portion extends about a respective axis and defines a cavity for housing a connecting bar. The connecting portion has an open profile so that the cavity is accessible transversely to the axis.

A lining is provided that covers doors or windows to provide protection against all inclement weather conditions. The lining prevents sunlight or any other type light from entering inside a room. The lining that includes horizontal slotted blinds that are operated manually using a flat cord. The horizontal slotted blinds work using tongue and groove concept.

A roller shutter includes a chamber with an opening, a roller curtain movable between being fully contained within the chamber and extended beyond the chamber through the opening, and at least one guide rail along and relative to which said roller curtain is movable between being retracted and extended, wherein the roller curtain includes a plurality of slat members interlocked with each other for relative pivotal movement, the plurality of slat members collectively forming first and second major surfaces, and a first layer of fire-resistant and/or heat-resistant fabric fixedly mounted to the first major surface of the slat members and a second layer of fire-resistant and/or heat-resistant fabric fixedly mounted to the second major surface of the slat members, and wherein the guide rail includes at least a first sealing member which, when the roller curtain is extended, contacts or presses into the first layer of fire-resistant and/or heat-resistant fabric.