A flat roof skylight with suspended safety grid

Abstract

A flat roof skylight (1) is disclosed, comprising a rectangular panel frame (3) enclosing an upward opening of the flat roof skylight (1), a panel (4), and a curb (2) configured for extending upwards from a flat roof surface, wherein the panel frame (3) supports the panel (4) on top of the curb (2), wherein the flat roof skylight (1) comprises a fall protection device, which fall protection device comprises a safety grid (6) arranged, preferably horizontally, within and across a downward opening, preferably at least 10 cm below the panel frame (3), to secure the downward opening of the flat roof skylight (1), the downward opening being enclosed by the curb (2), and wherein the safety grid (6) is suspended from an upper edge of the curb (2) and is mounted within and across the downward opening. Also, a bracket (7, 19, 26, 34, 35) for suspending a safety grid (6) of a fall protection device of a flat roof skylight (1) from an upper edge of a curb (2) of such a skylight (1) extending upwards from a flat roof surface is disclosed.

Description

Background

[0001] In modern architecture, skylight windows are often used in flat-roofed buildings to provide natural daylight and ventilation for interior spaces. These skylight windows are commonly installed on flat roofs with an inclination of less than 5 degrees, typically positioned over an opening in the roof. They are typically supported by curbs that extend upwards from the roof surface. In addition to their day lighting function, skylight windows are also utilized as smoke vents in the event of a fire, offering a path for smoke to escape from the building, thereby improving fire safety.

[0002] To enhance safety, especially in buildings where the flat roof skylights cover large openings, it is common to install fall protection devices, such as safety grids. These grids are designed to prevent people or large objects from accidentally falling through the roof openings into the building. Safety grids typically consist of a metal framework covering the opening beneath the skylight and ensuring that it is secure. The use of such grids is normal in commercial, industrial, and residential buildings where roof access is required or when the skylight dimensions are large enough to pose a significant hazard.

[0003] However, the installation of such safety grids presents some challenges. Assembling and mounting these grids can be labor-intensive and time-consuming, often requiring skilled labor and additional structural components. Moreover, these safety grids, while providing essential fall protection, may impede the effectiveness of the skylight as a smoke vent. The grid's structure, which partially obstructs the cross-sectional area of the roof opening, can limit the free passage of smoke, thus reducing the overall efficiency of the skylight in performing its smoke ventilation function.

[0004] It is therefore an objective of the present disclosure to provide means for addressing the aforementioned challenges, offering improved ease of installation of the safety grid while minimizing any obstruction to the escape of smoke in the event of a fire.Summary

[0005] In a first aspect of the present disclosure, it relates to a flat roof skylight comprising a rectangular panel frame enclosing an upward opening of the flat roof skylight, a panel, and a curb configured for extending upwards from a flat roof surface, wherein the panel frame supports the panel on top of the curb, wherein the flat roof skylight comprises a fall protection device, which fall protection device comprises a safety grid arranged, preferably horizontally, within and across a downward opening, preferably at least 10 cm below the panel frame, to secure the downward opening of the flat roof skylight, the downward opening being enclosed by the curb, and wherein the safety grid is suspended from an upper edge of the curb and is mounted within and across the downward opening.

[0006] This configuration allows the skylight to be securely installed over an opening in a flat roof while providing both structural support and aesthetic integration with the roof. The rectangular panel frame offers versatility for various building designs and is suitable for both residential and commercial applications.

[0007] The disclosed flat roof skylight offers several advantages over existing systems, particularly in terms of simplifying the installation of the safety grid. By suspending the safety grid from the upper edge of the curb, the need for complex mounting mechanisms or additional supporting structures within the downward opening, which might obstruct smoke venting in case of fire, is reduced. This design allows the grid to be securely positioned within the downward opening without obstructing the upward opening of the skylight, thereby enhancing the overall ease of assembly.

[0008] A further benefit of the disclosed system is that the safety grid, if being located at least 10 cm below the panel frame, can be vertically aligned with traverse structures crossing the downward opening. If the safety grid is mounted before such traverse structures, the safety grid may even be mounted beneath such structures. If needed, the safety grid may be provided with appropriate openings corresponding to the sizes and positions of such traverse structures or parts thereof. These traverse structures may, for instance, be provided for supporting an actuator configured for opening and closing the skylight window. Thus, it can be ensured that the clearing between the safety grid and such traverse structures can be minimized and that the grid does not interfere with the panel frame or the skylight's structural integrity.

[0009] The horizontal placement of the grid across the downward opening provides a strong barrier that effectively prevents accidental falls, while also ensuring that the smoke can escape through the upward opening with minimal resistance. The overall design thus optimizes both safety and functionality, addressing the shortcomings of conventional flat roof skylight installations where safety grids may impede ventilation.

[0010] This arrangement also offers flexibility in terms of materials and construction. The grid may be configured from various materials, such as welded metal bars, which can be adapted to specific strength or durability requirements. Additionally, the method of suspending the grid from the upper edge of the curb allows for easy removal or replacement if needed, offering a practical solution for maintenance or repairs. These features ensure that the disclosed flat roof skylight is well-suited for a wide range of building types, offering both improved safety and efficient smoke venting capabilities.

[0011] Preferably, the horizontal cross-sectional area of the downward opening at the position of the safety grid is larger than the horizontal cross-sectional area of the upward opening at the top of the curb. Placing the safety grid at a position, in which the cross-sectional area is larger allows for a more open passage for smoke to exit through the upward opening, enhancing the skylight's effectiveness as a smoke vent. Thus, it provides a sufficient flow through the opening while ensuring that the safety grid remains in place to prevent fall accidents. Tests have demonstrated that lowering the safety grid by at least 10 cm below the level of the panel frame can significantly reduce its impact on the flow of air and smoke through the opening, in some cases reducing the effect of the obstruction by half or more.

[0012] In one embodiment of the present disclosure, the safety grid is supported by a plurality of brackets. Each bracket includes a grid-holding part for surrounding and / or supporting one or more bars of the safety grid and a suspension part for suspending the bracket from the upper edge of the curb. The suspension part of the bracket is sandwiched between the upper edge of the curb and an edge frame mounted on top of the curb along the upper edge thereof. This configuration enables the grid to be easily mounted while ensuring stability and strength, reducing the complexity of the installation process.

[0013] The edge frame may be the same as the panel frame. This integration simplifies the design and manufacturing process by reducing the number of separate components required. Using the same frame for both purposes also enhances the structural integrity of the flat roof skylight and reduces the likelihood of misalignment during installation.

[0014] In one embodiment of the present disclosure, the grid-holding part and the suspension part are formed in one piece as an integral part of the bracket. This one-piece design increases the strength of the bracket while minimizing the number of components required. It also reduces the risk of failure points and makes the installation process faster and more straightforward by eliminating the need for multiple parts to be assembled on-site.

[0015] The suspension part of the bracket may comprise one or more right-angle bends. These bends allow the suspension part to extend upwards along an inner side of the curb, across the upper edge of the curb and, preferably, downwards along an outer side of the curb. This design ensures that the bracket is securely attached to the curb and provides additional stability for the safety grid. The use of right-angle bends also allows for a more versatile attachment, accommodating a range of curb designs and dimensions.

[0016] In one embodiment of the present disclosure, the suspension part of the bracket is configured to interact with the curb in such a way that the bracket is held in place when it is suspended from the upper edge of the curb. This can be achieved through mechanisms such as a "click lock," a hook, or a grip arranged on the part of the suspension part of the bracket extending downwards on an outer side of the curb. The hook or grip may be configured for engaging with the outer contour of the curb, ensuring that the bracket remains in position without the need for additional fastening components, thus simplifying the installation process.

[0017] In one embodiment of the present disclosure, the suspension part of the bracket comprises one or more bends and one or more through-holes allowing it to be fastened to the upper edge of the curb, for instance by means of one or more, preferably vertically oriented, mounting screws. Fastening the bracket to the curb by means of one or more mounting screws is a fast, simple and reliable way of ensuring that that bracket stays in the desired position.

[0018] In one embodiment of the present disclosure, the bracket comprises, between the suspension part and the grid-holding part, one or more expansion sections, each of which one or more expansion sections are arranged to allow the length of the expansion section and, thereby, the length of the bracket to extend, in case a significant downward directed force impact is applied to the grid-holding part in the longitudinal direction of the bracket, for instance due to something heavy falling unto the safety grid. The use of dedicated expansion sections makes it possible to eliminate or at least significantly decrease the risk of one or more brackets breaking apart and separating into two or more parts, should a heavy item, such as a person, fall onto the safety grid. This ensures that, even if it may be significantly deformed by such an impact, the safety grid stays in place and prevents the falling item from continuing its fall further down into the building. Also, dedicated expansion sections allows for controlling where and how the length of the bracket extends, should it be necessary.

[0019] Within each of the one or more expansion sections, an opening through the material of the bracket may be provided so that the material is divided into two separate parts, preferably with a smaller total cross-sectional area than the cross-sectional area of the bracket outside the one or more expansion sections, allowing the length of the bracket to extend by deformation of the shape of the bracket within the one or more expansion sections. Allowing the length of the bracket to extend be deformation of the shape of the bracket is more safe than letting the extension of the length take place by simply attempting to stretch the material, from which the bracket is produced. In the latter case, there is a significantly higher risk that the bracket may break and separate into two or more parts.

[0020] Within each of the one or more expansion sections, the bracket may be provided with a plurality of, preferably right-angle, bends arranged to allow the length of the bracket to extend by increasing the angle of these bends. Allowing the length of the bracket to extend be changing the angle of one or more bends of the bracket is more safe than letting the extension of the length take place by simply attempting to stretch the material, from which the bracket is produced. In the latter case, there is a significantly higher risk that the bracket may break and separate into two or more parts.

[0021] In one embodiment of the present disclosure, the grid-holding part of the bracket comprises a supporting part, an outer part, and an inner part, which are arranged so that, when the bracket is in use, one or more bars of the safety grid rests on the supporting part between the outer part and the inner part of the grid-holding part, the outer part being arranged outside the safety grid, and the inner part being arranged inside the safety grid. With this configuration of the supporting part, the one or more bars of the safety grid are not only supported by the supporting part but also prevented from, or at least significantly restricted in, moving in the horizontal direction perpendicular to the longitudinal direction of the bar(s).

[0022] In one embodiment of the present disclosure, each of the outer part and the inner part of the grid-holding part is provided with a through-hole, the through-holes of the outer part and the inner part being arranged opposite each other for receiving a grid-holding element, which grid-holding element is configured for passing through both through-holes, thus preventing the one or more bars of the safety grid resting on the supporting part from leaving the grid-holding part of the bracket. The use of a grid-holding element passing across the one or more bars of the safety grid being supported by the supporting part of the grid-holding part of the bracket ensures that the one or more bars stay in position even if, for some reason, an upward force should be applied to the safety grid.

[0023] The grid-holding element may be a bolt configured to be held in place, when being positioned through the two through-holes, either by means of a nut or by engaging with a thread, which is cut within the material surrounding one of the two through-holes. Alternatively, the grid-holding element may be a self-tapping screw configured for engaging with the material surrounding one of the two through-holes for keeping the screw in place when being positioned through the two through-holes. The use of a bolt or a self-tapping screw is a simply and reliable way of mounting the grid-holding element and making sure that it stays in the desired position.

[0024] The inner part may comprise one or more slots, each of which is preferably dimensioned to receive a bar of the safety grid, which is arranged perpendicularly to the one or more bars resting on the supporting part. By letting a bar of the safety grid pass through such a slot, the one or more bars resting on the supporting part are prevented from moving in the longitudinal direction of the bar(s).

[0025] In one embodiment of the present disclosure, one or more parts of the inner part are configured to be bent towards the outer part for preventing the one or more bars of the safety grid resting on the supporting part from leaving the grid-holding part of the bracket. With this configuration, the number of parts can be reduced, because no separate grid-holding element is needed for keeping the bar(s) of the safety grid in position within the grid-holding part of the bracket.

[0026] In one embodiment of the present disclosure, the bracket comprises a, preferably centrally arranged, longitudinal slot passing through the suspension part and any expansion sections of the bracket in such a way that the two parts of the bracket, which are on opposite sides of the longitudinal slot are only connected to each other in the grid-holding part of the bracket, wherein the longitudinal slot is configured to receive a bar of the safety grid so that, when the bracket is in use, a bar of the safety grid, which is arranged perpendicularly to the wall of the curb, from which the bracket is suspended, rests onto the connection between the two parts of the bracket, which are on opposite sides of the longitudinal slot. This is a simple and therefore very cost-efficient embodiment of the bracket.

[0027] In one embodiment of the present disclosure, the safety grid is made from metal bars, which are welded together. Welding the bars provides strong, durable connections between them, ensuring that the grid can withstand significant forces and provide reliable fall protection. Metal materials such as steel or aluminum may be used, offering resistance to corrosion, weathering, and impact.

[0028] In one embodiment of the present disclosure, along one or more edges of the safety grid, the safety grid comprises two discrete parallel bars arranged adjacent to each other. This arrangement enhances the strength and stability of the grid along its edges, where it may be subject to the highest stresses. The double-bar configuration can also provide additional support for the grid, further improving its resistance to deformation or failure.

[0029] The panel may comprise one or more planar sheets. This design allows for flexibility in the materials used for the panel, which may include transparent or translucent materials such as glass or plastic, depending on the desired optical and structural properties. Planar sheets offer a sleek, modern appearance while providing efficient coverage of the roof opening.

[0030] The one or more planar sheets may be made from polycarbonate or poly(methyl methacrylate) (PMMA). These materials are lightweight, strong, and resistant to impact, making them ideal for skylight panels. Polycarbonate and PMMA also offer good transparency and UV resistance, ensuring that the flat roof skylight remains functional and aesthetically pleasing over time.

[0031] The panel may comprise one or more roof domes. Roof domes offer the advantage of increased structural rigidity and improved water runoff due to their curved surfaces. Domes are particularly suitable for areas where weather conditions may pose a challenge to the integrity of flat skylights.

[0032] The one or more roof domes may be made from polycarbonate or poly(methyl methacrylate) (PMMA). These materials provide the same benefits as when used in planar sheets, offering strength, durability, and transparency. The use of polycarbonate or PMMA in domed structures ensures that the skylight can withstand environmental stresses while providing efficient light transmission.

[0033] The panel may be transparent or translucent. This feature allows natural light to enter the building through the skylight, enhancing the energy efficiency and comfort of interior spaces. Depending on the application, the level of transparency can be adjusted to control the amount of light entering the space, with options such as frosted or tinted panels being used to reduce glare or increase privacy.

[0034] The panel frame may be hinged to the curb. Such a hinged design allows the skylight to be easily opened or closed, providing ventilation when needed or access to the roof for maintenance. Hinged skylights are particularly advantageous in smoke vent applications, where they can automatically open in the event of a fire, ensuring rapid smoke extraction.

[0035] In a second aspect of the present disclosure, it relates to a bracket for suspending a safety grid of a fall protection device of a flat roof skylight, such as a skylight as described above, from an upper edge of a curb of the skylight extending upwards from a flat roof surface, which bracket comprises a grid-holding part for surrounding and / or supporting one or more bars of the safety grid and a suspension part for suspending the bracket from the upper edge of the curb so that the suspension part of the bracket is sandwiched between the upper edge of the curb and an edge frame mounted on top of the curb along the upper edge thereof. The use of such brackets for suspending the safety grid from the upper edge of the curb allows for easy removal or replacement if needed, offering a practical solution for maintenance or repairs. Thus, a flat roof skylight using comprising such brackets is well-suited for a wide range of building types, offering both improved safety and efficient smoke venting capabilities.

[0036] Preferably, the grid-holding part and the suspension part are formed in one piece as an integral part of the bracket. This one-piece design increases the strength of the bracket while minimizing the number of components required. It also reduces the risk of failure points and makes the installation process faster and more straightforward by eliminating the need for multiple parts to be assembled on-site.

[0037] The suspension part of the bracket may comprise one or more right-angle bends. These bends allow the suspension part to extend upwards along an inner side of the curb, across the upper edge of the curb and, preferably, downwards along an outer side of the curb. This design ensures that the bracket is securely attached to the curb and provides additional stability for the safety grid. The use of right-angle bends also allows for a more versatile attachment, accommodating a range of curb designs and dimensions.

[0038] The suspension part of the bracket may configured to interact with the curb in such a way that the bracket is held in place when it is suspended from the upper edge of the curb. This can be achieved through mechanisms such as a "click lock," a hook, or a grip arranged on the part of the suspension part of the bracket extending downwards on an outer side of the curb. The hook or grip may be configured for engaging with the outer contour of the curb, ensuring that the bracket remains in position without the need for additional fastening components, thus simplifying the installation process.

[0039] The suspension part of the bracket may comprise one or more bends and one or more through-holes allowing it to be fastened to the upper edge of the curb, for instance by means of one or more, preferably vertically oriented, mounting screws. Fastening the bracket to the curb by means of one or more mounting screws is a fast, simple and reliable way of ensuring that that bracket stays in the desired position.

[0040] In one embodiment of the present disclosure, the bracket comprises, between the suspension part and the grid-holding part, one or more expansion sections, each of which one or more expansion sections are arranged to allow the length of the expansion section and, thereby, the length of the bracket to extend, in case a significant downward directed force impact is applied to the grid-holding part in the longitudinal direction of the bracket, for instance due to something heavy falling unto the safety grid. The use of dedicated expansion sections makes it possible to eliminate or at least significantly decrease the risk of one or more brackets breaking apart and separating into two or more parts, should a heavy item, such as a person, fall onto the safety grid. This ensures that, even if it may be significantly deformed by such an impact, the safety grid stays in place and prevents the falling item from continuing its fall further down into the building. Also, dedicated expansion sections allows for controlling where and how the length of the bracket extends, should it be necessary.

[0041] Within each of the one or more expansion sections, an opening through the material of the bracket may be provided so that the material is divided into two separate parts, preferably with a smaller total cross-sectional area than the cross-sectional area of the bracket outside the one or more expansion sections, allowing the length of the bracket to extend by deformation of the shape of the bracket within the one or more expansion sections. Allowing the length of the bracket to extend be deformation of the shape of the bracket is more safe than letting the extension of the length take place by simply attempting to stretch the material, from which the bracket is produced. In the latter case, there is a significantly higher risk that the bracket may break and separate into two or more parts.

[0042] Within each of the one or more expansion sections, the bracket may be provided with a plurality of, preferably right-angle, bends arranged to allow the length of the bracket to extend by increasing the angle of these bends. Allowing the length of the bracket to extend be changing the angle of one or more bends of the bracket is more safe than letting the extension of the length take place by simply attempting to stretch the material, from which the bracket is produced. In the latter case, there is a significantly higher risk that the bracket may break and separate into two or more parts.

[0043] In one embodiment of the present disclosure, the grid-holding part of the bracket comprises a supporting part, an outer part, and an inner part, which are arranged so that, when the bracket is in use, one or more bars of the safety grid rests on the supporting part between the outer part and the inner part of the grid-holding part, the outer part being arranged outside the safety grid, and the inner part being arranged inside the safety grid. With this configuration of the supporting part, the one or more bars of the safety grid are not only supported by the supporting part but also prevented from, or at least significantly restricted in, moving in the horizontal direction perpendicular to the longitudinal direction of the bar(s).

[0044] Each of the outer part and the inner part of the grid-holding part may be provided with a through-hole, the through-holes of the outer part and the inner part being arranged opposite each other for receiving a grid-holding element, such as a bolt or a self-tapping screw, which grid-holding element is configured for passing through both through-holes, thus preventing the one or more bars of the safety grid resting on the supporting part from leaving the grid-holding part of the bracket. The use of a grid-holding element passing across the one or more bars of the safety grid being supported by the supporting part of the grid-holding part of the bracket ensures that the one or more bars stay in position even if, for some reason, an upward force should be applied to the safety grid.

[0045] The grid-holding element may be a bolt configured to be held in place, when being positioned through the two through-holes, either by means of a nut or by engaging with a thread, which is cut within the material surrounding one of the two through-holes. Alternatively, the grid-holding element may be a self-tapping screw configured for engaging with the material surrounding one of the two through-holes for keeping the screw in place when being positioned through the two through-holes. The use of a bolt or a self-tapping screw is a simply and reliable way of mounting the grid-holding element and making sure that it stays in the desired position.

[0046] The inner part may comprise one or more slots, each of which is preferably dimensioned to receive a bar of the safety grid, which is arranged perpendicularly to the one or more bars resting on the supporting part. By letting a bar of the safety grid pass through such a slot, the one or more bars resting on the supporting part are prevented from moving in the longitudinal direction of the bar(s).

[0047] One or more parts of the inner part may be configured to be bent towards the outer part for preventing the one or more bars of the safety grid resting on the supporting part from leaving the grid-holding part of the bracket. With this configuration, the number of parts can be reduced, because no separate grid-holding element is needed for keeping the bar(s) of the safety grid in position within the grid-holding part of the bracket.

[0048] In one embodiment of the present disclosure, the bracket comprises a, preferably centrally arranged, longitudinal slot passing through the suspension part and any expansion sections of the bracket in such a way that the two parts of the bracket, which are on opposite sides of the longitudinal slot are only connected to each other in the grid-holding part of the bracket, wherein the longitudinal slot is configured to receive a bar of the safety grid so that, when the bracket is in use, a bar of the safety grid, which is arranged perpendicularly to the wall of the curb, from which the bracket is suspended, rests onto the connection between the two parts of the bracket, which are on opposite sides of the longitudinal slot. This is a simple and therefore very cost-efficient embodiment of the bracket.Brief description of the figures

[0049] In the following a few exemplary embodiments of the disclosure are discussed in more detail with reference to the drawings, of which Fig. 1is a perspective view of a cross-cut flat roof skylight according to an embodiment of the disclosure, which is partly assembled, Fig. 2is a perspective view of the cross-cut flat roof skylight shown in Fig. 1, which is now, however, fully assembled, Fig. 3is a perspective view of the flat roof skylight shown in Fig. 2, which is cross-cut in a direction perpendicular to the cross-cutting shown in Figs. 1 and 2, Fig. 4is a perspective view of a part of a safety grid of a flat roof skylight according to an embodiment of the disclosure, Fig. 5is a perspective view of a bracket according to a first embodiment of the disclosure, which is mounted in a flat roof skylight, Fig. 6is a perspective view of a bracket according to a second embodiment of the disclosure, Fig. 7is a perspective view of the bracket shown in Fig. 6, now connected to a safety grid, Fig. 8is a perspective view of two brackets like the one shown in Figs. 6 and 7, now fully mounted, Figs. 9A / 9Bare perspective views of a bracket according to a third embodiment of the disclosure, Fig. 10is a perspective view of a bracket according to a fourth embodiment of the disclosure, Fig. 11is a perspective view of a bracket according to a fifth embodiment of the disclosure, Fig. 12is a perspective view of a part of the bracket shown in Fig. 11, now connected to a safety grid, Fig. 13is a perspective view of a bracket according to a sixth embodiment of the disclosure, Fig. 14is a perspective view of the bracket shown in Fig. 13, now connected to a safety grid, and Fig. 15is a perspective view of a cross-cut flat roof skylight according to an embodiment of the disclosure, which is partly assembled, and in which brackets like the one shown in Figs. 13 and 14 are used. Detailed description

[0050] Fig. 1 shows schematically a cross-cut flat roof skylight 1 according to an embodiment of the disclosure, which is partly assembled. The base part of the flat roof skylight 1 is a rectangular curb 2, which is configured to be mounted onto a flat roof of a building (not shown).

[0051] A safety grid 6 is suspended from the upper edge of the curb 2 by means of a number of brackets 7 as described in further detail below. As schematically indicated in the figure, the safety grid 6 is lowered from the upper edge of the curb 2 by a certain distance which, in practice, is at least 10 cm.

[0052] In preferred embodiments, such as the one shown in Fig. 1, the walls of the curb 2 are inclined in such a way that the cross-sectional area of the vertical opening through the curb 2 is larger at the bottom of the curb 2, i.e. near the roof, than at the top of the curb 2. This means that the safety grid 6, which is arranged below the panel frame 3, is preferably arranged at a vertical position, in which the cross-sectional area of the downward opening within the curb 2 is larger than the cross-sectional area of the opening at the top of the curb 2 (as illustrated in Fig. 1).

[0053] This is an important feature if the flat roof skylight 1 serves a function as a smoke vent, because it means that, at the position of the safety grid 6, the smoke pressure is smaller than at the top of the curb 2, and therefore, the impact on the flow through the vertical opening through the curb 2 caused by the safety grid 6 is smaller than it would have been, had the safety grid 6 been placed immediately under the panel frame 3 (not shown in this figure). Test results indicate that, with a preferred and typical inclination of the curb walls, a safety grid 6, which would cause a reduction of the flow of 5-6% if placed at the top of the curb 2, only causes a reduction of 3% when placed 10 cm lower and 2% when placed 16 cm below the top of the curb 2. Thus, lowering the safety grid 6 by 16 cm more than halves the impact thereby on the flow.

[0054] In the partly assembled flat roof skylight 1 illustrated in Fig. 1, the skylight window itself has not yet been mounted, but the top of the curb 2 is provided with hinges 10 along one side or end thereof, by which a panel frame 3 of the skylight window can be connected to the curb 2 in such a way that the skylight window can be opened (as shown in Fig. 2) or closed..

[0055] In the fully assembled flat roof skylight 1 illustrated in Fig. 2, the skylight window comprising a panel 4, which is mounted on a panel frame 3, has also been mounted. The illustrated panel 4 comprises three planar sheets, but in other embodiments, the panel may comprise fewer or more such planar sheets and / or a number of roof domes.

[0056] In principle, and especially if the flat roof skylight 1 is to be used as a smoke vent and / or for normal ventilation of the room beneath the roof only, such planar sheets and / or roof domes can be made from any rigid material, which is able to withstand the weather conditions at the location of the building. In most cases, however, it is also the purpose of the flat roof skylight 1 to provide some light to the room beneath the roof, in which case the planar sheets and / or roof dome are typically made from a transparent or at least translucent material, such as polycarbonate or poly(methyl methacrylate) (PMMA).

[0057] In the illustrated embodiment, an edge frame 5 is mounted on top of the curb 2 along the upper edge thereof. When the skylight window is closed, the panel frame 3 rests at the edge frame 5 along the full circumference thereof. Preferably, one or more gaskets 18 are mounted on the upper side of the edge frame 5 (and / or on the underside of the panel frame 3) for making the closure tight when the skylight window is closed. In other embodiments, the panel frame 3 may be mounted directly onto the top of the curb 2, i.e. the edge frame 5 is the same as the panel frame 3.

[0058] Fig. 3 shows schematically the flat roof skylight 1 of Fig. 2, which has now been cross-cut in a direction perpendicular to the cross-cutting shown in Figs. 1 and 2. Thus, Fig. 3 illustrates how this embodiment of the flat roof skylight 1 comprises an actuator 9 configured for opening and closing the skylight window. This actuator 9 is supported by a traverse structure 8 arranged across the vertical opening through the curb 2. In other embodiments, there may be more than one actuator 9 or none at all. If there is more than one actuator 9, the skylight window may still be hinged at one end or side as shown in Fig. 3, or it may be opened in a different way involving no hinges 10. If there are no actuators, the skylight window may be opened manually, for instance by means of a rod or a chain system, or it may not be possible to open it at all. In the latter case, the flat roof skylight 1 will only serve the purpose of letting in light, but it will not function as a smoke vent or could be used for normal ventilation of the room beneath the roof.

[0059] The safety grid 6 illustrated in Fig. 3 is lowered from the upper edge of the curb 2 to be arranged beneath the transverse structure 8, which normally requires that the safety grid 6 is mounted before the transverse structure 8 and the actuator 9. In other embodiments, the safety grid 6 may be arranged over the transverse structure(s) 8, and / or the safety grid 6 may comprise appropriate openings corresponding to the size(s) and position(s) of such traverse structure(s) 8 or parts thereof, in which case the safety grid 6 can be vertically aligned with these transverse structure 8, completely or partly surrounding them in a primarily horizontal plane.

[0060] Fig. 4 is a schematic, perspective view of a part of a safety grid 6 of a flat roof skylight 1 according to an embodiment of the disclosure. It shows how a plurality of brackets 7, each comprising a grid-holding part 11 and a suspension part 12, are used for suspending the safety grid 6 from the upper edge of the curb 2 (not shown in this figure).

[0061] The safety grid 6 comprises a plurality of grid bars 14 arranged to form a grid, and the grid-holding part 11, which form the lowermost part of each bracket 7, surrounds and supports a grid bar 14 or, preferably and as shown in Fig. 4, two parallel grid bars 16 arranged adjacent to each other, at the edge of the safety grid 6. The use of two parallel and adjacent grid bars 16 along one or more edges of the safety grid 6 increases the stiffness and strength of the safety grid 6, because the number of welding points connecting the grid bars 14, 16 to each other is increased. In order to reduce the impact on the flow caused by the safety grid 6, the cross-sectional dimensions of the two adjacent grid bars 16 may be chosen to be smaller than the dimensions of the other grid bars 14 of the safety grid 6.

[0062] Each bracket 7 in the illustrated embodiment comprises a rivet 15, which is used for making the grid-holding part 11 form a closed loop around the grid bar 14 or grid bars 16. In other embodiments, a closed loop of the grid-holding part 11 may be obtained by other means as discussed in further detail below.

[0063] In the illustrated embodiment, the suspension part 12, which form the uppermost part of each bracket 7, comprises two right-angle bends so that it can extend upwards along an inner side of the curb 2 (not shown in this figure), across the upper edge of the curb 2 and downwards along an outer side of the curb 2. In other embodiments, the suspension part 12 may be designed otherwise, such as for instance comprising only one right-angle bend making it extend upwards along an inner side of the curb 2 and across the upper edge of the curb 2 only.

[0064] The brackets 7 illustrated in Fig. 4 each comprise a hook 13 for interacting with the curb 2 and holding the bracket 7 in place when it is suspended from the upper edge of the curb 2. In other embodiments, this hook 13 may be replaced by other means configured for engaging with the outer contour of the curb 2, such as a "click lock" or a grip arranged on a part of the suspension part 12 of the bracket 7. In yet other embodiments, the suspension part 12 may comprise no such feature at all and it may be held in place only by a part of the suspension part 12 being sandwiched between the upper edge of the curb 2 and an edge frame 5 mounted on top of the curb 2 along the upper edge thereof.

[0065] In preferred embodiments, such as the one illustrated in Fig. 4, the grid-holding part 11 and the suspension part 12 of the bracket 7 are formed in one piece as an integral part of the bracket 7, thus minimising the number of components required and facilitating the installation process on-site.

[0066] In Fig. 5, the mounting of a bracket 7 according to a first embodiment of the disclosure for suspension of a safety grid 6 of a flat roof skylight 1 is disclosed in more detail. The bracket 7 shown in Fig. 5 is similar to the ones illustrated in Fig. 4 with the exception that the bracket 7 in Fig. 5 has no hook 13 for interacting with the outer contour of the curb 2 and holding the bracket 7 in place. Rather, as illustrated in Fig. 5, the a part of the suspension part 12 of the bracket 7 is sandwiched between the upper edge of the curb 2 and an edge frame 5 mounted on top of the curb 2 along the upper edge thereof.

[0067] Fig. 5 also shows how the panel frame 5 rests upon the edge frame 3 when the skylight window is closed. The grid-holding part 11 of the bracket 7 is shown in an open configuration with a rivet 15 and a hole 17 in the bracket 7 for receiving this rivet 15, so that the grid-holding part 11 will form a closed loop as described above. Thus, in the configuration illustrated in Fig. 5, the brackets 7 are suspended from the upper edge of the curb 2 before the outermost grid bars 16 of the safety grid 6 are placed in the open grid-holding part 11 of each bracket 7, and the grid-holding parts 11 are closed by fixing the rivets 15 in the respective holes 17 configured for receiving them. In other embodiments, the outermost grid bars 16 may be placed in the grid-holding part 11 of each bracket 7, and the grid-holding parts 11 may be closed, before the safety grid 6 with the brackets 7 as one assembled unit is mounted into the curb 2.

[0068] It should be noted that the rivets 15 shown in Figs. 4 and 5 are only one of several possible means, which could be used for closing the loops of the grid-holding parts 11 of the brackets 7. These loops can also be closed, for instance, by means of one or more screws, be welding or by simply being tied together with a string or cord of an appropriate material.

[0069] Fig. 6 shows another embodiment of a bracket 19, with another configuration of the suspension part 20 and the grid-holding part 27 than the bracket 7 shown in the previous figures. Thus, in this and the following figures, the suspension part 20 is provided with a couple of through-holes 21, through which the bracket 19 can be fastened to the upper edge of the curb 2, for instance by means of mounting screws 22 (not shown in Fig. 6). Preferably, these mounting screws 22 are oriented vertically so that, when the skylight 1 is fully assembled, the heads of the mounting screws 22 are hidden under the edge frame 5.

[0070] As for the grid-holding part 27 of the bracket 19 shown in Fig. 6, it consists of a supporting part 28, an outer part 29, and an inner part 30, which are arranged so that, when the bracket 19 is in use, one or more bars 14 of a safety grid 6 rests on the supporting part 28, passing between the outer part 29 and the inner part 30 as shown in Figs. 7 and 8. The outer part 29 and the inner part 30 are both provided with a through-hole 31 for receiving a grid-holding element 32 (not shown in Fig. 6) as shown in Figs. 7 and 8. Furthermore, the inner part 30 is provided with two slots 33, which are dimensioned for receiving a bar 14 of the safety grid 6, which is perpendicular to the one or more bars 14 resting on the supporting part 28, as shown in Figs. 7 and 8.

[0071] The bracket 19 shown in Fig. 6 also comprises an expansion section 24 between the suspension part 20 and the grid-holding part 27, in which expansion section 24, the bracket 19 is provided with four right-angle bends 25. This means that, if a force applied to the safety grid 6 impacts the bracket 19 in a way, which will try to stretch the bracket 19 in its longitudinal direction, the extension of the length of the bracket 19 will take place in the expansion section 24 by increasing the angle in one or more of the bends 25 without significantly affecting the remaining parts of the bracket 19. Thus, the deformation of the bracket 19 in case of such an impact is controlled both when it comes to the location and to the type of the deformation.

[0072] Fig. 7 is a perspective view of the bracket 19 shown in Fig. 6, now connected to a safety grid 6. This figure shows how a first bar 14 of the safety grid 6 rests on the supporting part 28 of the grid-holding part 27 between the outer part 29 and he inner part 30, while another bar 14 of the safety grid 6, which is perpendicular to the first bar 14 passes through one of the slots 33 in the inner part 30 of the grid-holding part 27. This means that the first and second bars 14 of the safety grid 6 are locked in both horizontal directions with respect to the grid-holding part 27, and that the safety grid 6 is therefore prevented from moving in any horizontal direction.

[0073] Fig. 7 also shows how a grid-holding element 32, in this case consisting of a bolt, is arranged through the two through-holes 31 (not visible in Fig. 7) through the inner part 30 and the outer part 29 of the grid-holding part 27, respectively, for locking the first bar 14 in the vertical direction with respect to the grid-holding part 27, thereby preventing the safety grid 6 for moving also in that direction. The bolt 32 may be held in place by means of a nut, which would be arranged behind the outer part 29 and therefore would not be visible in Fig. 7, or it could engage with a thread formed in the material surrounding the through-hole 31 in the outer part 29. In other embodiments, the grid-holding element 32 may be constituted by other parts than a bolt, such as for instance a self-tapping screw.

[0074] Finally, Fig. 7 shows how two mounting screws 22 may be arranged through the through-holes 21 (not visible in Fig. 7) of the suspension part 20 for fastening the bracket 19 to the curb 2 (not shown in Fig. 7).

[0075] Fig. 8 is a perspective view of a part of a curb 2 with two brackets 19 like the one in Figs. 6 and 7, now fully mounted. What should especially be noted in Fig. 8 is that, in the bracket 19, which is closest to the corner of the curb 2, a bar 14 of the safety grid 6 is arranged within one of the slots 33 of the grid-holding part 27, whereas this is not the case in the bracket 19, which is further away from the corner. In case of a severe downward directed force impacting the safety grid 6 and causing a significant deformation thereof, it may be advantageous that some parts of the safety grid 6 are held in place whereas other parts are allowed to move relative to the brackets 19. Such a configuration may eliminate or at least significantly reduce the risk of the safety grid 6 or one or more of the brackets 19 breaking and separating into two or more parts.

[0076] Fig. 9A is a perspective view of a bracket 19 according to a third embodiment of the disclosure, which is very similar to the second embodiment described above. The main difference is that two parts 38 of the inner part 30 of the grid-holding part 27 are configured for being bent towards the outer part 29 as indicated in Fig. 9B, thus eliminating the need of a separate grid-holding element 32.

[0077] Fig. 10 is a perspective view of a bracket 19 according to a fourth embodiment of the disclosure. In this embodiment, the through-holes 21 of the suspension part 20 are shaped as keyholes rather than being circular as in the other embodiments shown. Also, the bracket 19 shown in Fig. 10 is provided with another form of expansion sections 23 than the one shown in the other embodiments. Thus, the bracket 19 in Fig. 10 is provided with three expansion sections 23, in each of which a through-hole divides the material, from which the bracket 19 is made, into two separate parts. This means that, if a force applied to the safety grid 6 impacts the bracket 19 in a way, which will try to stretch the bracket 19 in its longitudinal direction, the extension of the length of the bracket 19 will take place in the expansion sections 23 by deformation of the shape of the bracket 19 within these expansion sections 23. without significantly affecting the remaining parts of the bracket 19. Thus, the deformation of the bracket 19 in case of such an impact is controlled both when it comes to the location and to the type of the deformation.

[0078] Fig. 11 is a perspective view of a bracket 34 according to a fifth embodiment of the disclosure, in which a centrally arranged, longitudinal slot 36 is provided, passing through the suspension part 20 and the expansion section 24 of the bracket 34 in such a way that the two parts of the bracket 34 on opposite sides of the longitudinal slot 36 are only connected in the grid-holding part 37 of the bracket 34.

[0079] As shown in Fig. 12, the longitudinal slot 36 is configured for receiving a bar 14 of the safety grid 6, which extends in a direction perpendicular to the wall of the curb 2 (not shown in Fig. 12), from which the bracket 34 is suspended. This means that the safety grid 6 is held in position with respect to the bracket 34 without the use of any separate grid-holding element of any type.

[0080] Fig. 13 is a perspective view of a bracket 35 according to a sixth embodiment of the disclosure, which is almost identical to the bracket 34 shown in Figs. 11 and 12. The only difference is that, in the bracket 35 in Fig. 13, the grid-holding part 37 of the bracket 35 is bent to form a horizontal part on which a bar 14 of the safety grid 6, which is parallel to the wall of the curb 2 (not shown in Fig. 13) from which the bracket 35 is suspended, can rest.

[0081] Fig. 14 is a perspective view of the bracket 35 in Fig. 13 showing how the bars 14 of the safety grid 6 are placed within the grid-holding part 37 of the bracket 35, and Fig. 15 is a perspective view of a cross-cut flat roof skylight 1 according to an embodiment of the disclosure, which is partly assembled, and in which brackets 35 like the one shown in Figs. 13 and 14 are used.

[0082] It should be noted that the above-described embodiments are only examples, and that the skylight 1 and bracket 7, 19, 26, 34, 35 may be designed in many other ways, the scope of the present disclosure only being limited by the claims as described below. In particular, the suspension parts 12, 20, the grid-holding parts 11, 27, 37, and the expansion sections 23, 24 described above may be combined in any possible way and not only as shown in the figures as described above.List of reference numbers

[0083] 1.Flat roof skylight 2.Curb 3.Panel frame 4.Panel 5.Edge frame 6.Safety grid 7.Bracket 8.Traverse structure 9.Actuator 10.Hinge 11.Grid-holding part of bracket 12.Suspension part of bracket 13.Hook for holding bracket in place on curb 14.Grid bar 15.Rivet 16.Two bars adjacent to each other at edge of safety grid 17.Hole for rivet 18.Gasket 19.Bracket 20.Suspension part of bracket 21.Through-hole for mounting screw 22.Mounting screw 23.Expansion section 24.Expansion section 25.Bend in expansion section 26.Bracket 27.Grid-holding part of bracket 28.Supporting part of grid-holding part 29.Outer part of grid-holding part 30.Inner part of grid-holding part 31.Through-hole for grid-holding element 32.Grid-holding element 33.Slot for grid bar 34.Bracket 35.Bracket 36.Longitudinal slot 37.Grid-holding part of bracket 38.Part of inner part configured for bending towards outer part Embodiments

[0084] 1. A flat roof skylight (1) comprising a rectangular panel frame (3) enclosing an upward opening of the flat roof skylight (1), a panel (4), and a curb (2) configured for extending upwards from a flat roof surface, wherein the panel frame (3) supports the panel (4) on top of the curb (2), wherein the flat roof skylight (1) comprises a fall protection device, which fall protection device comprises a safety grid (6) arranged, preferably horizontally, within and across a downward opening, preferably at least 10 cm below the panel frame (3), to secure the downward opening of the flat roof skylight (1), the downward opening being enclosed by the curb (2), and wherein the safety grid (6) is suspended from an upper edge of the curb (2) and is mounted within and across the downward opening. 2. The flat roof skylight (1) according to item 1, wherein the horizontal cross-sectional area of the downward opening at the position of the safety grid (6) is larger than the horizontal cross-sectional area of the upward opening at the top of the curb (2). 3. The flat roof skylight (1) according to item 1 or 2, wherein the safety grid (6) is supported by a plurality of brackets (7, 19, 26, 34, 35), each bracket (7, 19, 26, 34, 35) comprising a grid-holding part (11, 27, 37) for surrounding and / or supporting one or more bars (14) of the safety grid (6) and a suspension part (12, 20) for suspending the bracket (7, 19, 26, 34, 35) from the upper edge of the curb (2) so that the suspension part (12, 20) of the bracket (7, 19, 26, 34, 35) is sandwiched between the upper edge of the curb (2) and an edge frame (5) mounted on top of the curb (2) along the upper edge thereof. 4. The flat roof skylight (1) according to item 3, wherein the edge frame (5) is the same as the panel frame (3). 5. The flat roof skylight (1) according to item 3 or 4, wherein the grid-holding part (11, 27, 37) and the suspension part (12, 20) are formed in one piece as an integral part of the bracket (7, 19, 26, 34, 35). 6. The flat roof skylight (1) according to any of items 3-5, wherein the suspension part (12) of the bracket (7, 26, 34, 35) comprises one or more right-angle bends allowing it to extend upwards along an inner side of the curb (2), across the upper edge of the curb (2) and, preferably, downwards along an outer side of the curb (2). 7. The flat roof skylight (1) according to any of items 3-6, wherein the suspension part (12) of the bracket (7, 26, 34, 35) is configured to interact with the curb (2) in such a way that the bracket (7, 26, 34, 35) is held in place when it is suspended from the upper edge of the curb (2), such as by a "click lock", a hook (13) or a grip arranged on a part of the suspension part (12) of the bracket (7, 26, 34, 35) extending downwards on an outer side of the curb (2), which hook (13) or grip is configured for engaging with the outer contour of the curb (2). 8. The flat roof skylight (1) according to any of items 3-5, wherein the suspension part (20) of the bracket (19, 26, 34, 35) comprises one or more bends and one or more through-holes (21) allowing it to be fastened to the upper edge of the curb (2), for instance by means of one or more, preferably vertically oriented, mounting screws (22). 9. The flat roof skylight (1) according to any of items 3-8, wherein the bracket (7, 19, 26, 34, 35) comprises, between the suspension part (12, 20) and the grid-holding part (11, 27, 37), one or more expansion sections (23, 24), each of which one or more expansion sections (23, 24) are arranged to allow the length of the expansion section (23, 24) and, thereby, the length of the bracket (7, 19, 26, 34, 35) to extend, in case a significant downward directed force impact is applied to the grid-holding part (11, 27, 37) in the longitudinal direction of the bracket (7, 19, 26, 34, 35), for instance due to something heavy falling unto the safety grid (6). 10. The flat roof skylight (1) according to item 9, wherein, within each of the one or more expansion sections (23), an opening through the material of the bracket (7, 19, 26, 34, 35) is provided so that the material is divided into two separate parts, preferably with a smaller total cross-sectional area than the cross-sectional area of the bracket (7, 19, 26, 34, 35) outside the one or more expansion sections (23), allowing the length of the bracket (7, 19, 26, 34, 35) to extend by deformation of the shape of the bracket (7, 19, 26, 34, 35) within the one or more expansion sections (23). 11. The flat roof skylight (1) according to item 9, wherein, within each of the one or more expansion sections (24), the bracket (7, 19, 26, 34, 35) is provided with a plurality of, preferably right-angle, bends (25) arranged to allow the length of the bracket (7, 19, 26, 34, 35) to extend by increasing the angle of these bends (25). 12. The flat roof skylight (1) according to any of items 3-11, wherein the grid-holding part (27) of the bracket (7, 19, 26) comprises a supporting part (28), an outer part (29), and an inner part (30), which are arranged so that, when the bracket (7, 19, 26) is in use, one or more bars (14) of the safety grid (6) rests on the supporting part (28) between the outer part (29) and the inner part (30) of the grid-holding part (27), the outer part (29) being arranged outside the safety grid (6), and the inner part (30) being arranged inside the safety grid (6). 13. The flat roof skylight (1) according to item 12, wherein each of the outer part (29) and the inner part (30) of the grid-holding part (27) is provided with a through-hole (31), the through-holes (31) of the outer part (29) and the inner part (30) being arranged opposite each other for receiving a grid-holding element (32), which grid-holding element is configured for passing through both through-holes (31), thus preventing the one or more bars (14) of the safety grid (6) resting on the supporting part (28) from leaving the grid-holding part (27) of the bracket (7, 19, 26). 14. The flat roof skylight (1) according to item 13, wherein the grid-holding element (13) is a bolt configured to be held in place, when being positioned through the two through-holes (31), either by means of a nut or by engaging with a thread, which is cut within the material surrounding one of the two through-holes (31). 15. The flat roof skylight (1) according to item 13, wherein the grid-holding element (13) is a self-tapping screw configured for engaging with the material surrounding one of the two through-holes (31) for keeping the screw in place when being positioned through the two through-holes (31). 16. The flat roof skylight (1) according to any of items 12-15, wherein the inner part (30) comprises one or more slots (33), each of which is preferably dimensioned to receive a bar (14) of the safety grid (6), which is arranged perpendicularly to the one or more bars (14) resting on the supporting part (28). 17. The flat roof skylight (1) according to any of items 12-16, wherein one or more parts (38) of the inner part (30) are configured to be bent towards the outer part (29) for preventing the one or more bars (14) of the safety grid (6) resting on the supporting part (28) from leaving the grid-holding part (27) of the bracket (7, 19, 26). 18. The flat roof skylight (1) according to any of items 3-11, wherein the bracket (7, 19, 34, 35) comprises a, preferably centrally arranged, longitudinal slot (36) passing through the suspension part (12, 20) and any expansion sections (23, 24) of the bracket (7, 19, 34, 35) in such a way that the two parts of the bracket (7, 19, 34, 35), which are on opposite sides of the longitudinal slot (36) are only connected to each other in the grid-holding part (37) of the bracket (7, 19, 34, 35), wherein the longitudinal slot (36) is configured to receive a bar (14) of the safety grid (6) so that, when the bracket (7, 19, 34, 35) is in use, a bar (14) of the safety grid (6), which is arranged perpendicularly to the wall of the curb (2), from which the bracket (7, 19, 34, 35) is suspended, rests onto the connection between the two parts of the bracket (7, 19, 34, 35), which are on opposite sides of the longitudinal slot (36). 19. The flat roof skylight (1) according to any of items 3-18, wherein the safety grid (6) is made from metal bars (14), which are welded together. 20. The flat roof skylight (1) according to any of items 3-19, wherein, along one or more edges of the safety grid (6), the safety grid (6) comprises two discrete parallel bars (16) arranged adjacent to each other. 21. The flat roof skylight (1) according to any of items 3-20, wherein the panel (4) comprises one or more planar sheets. 22. The flat roof skylight (1) according to item 21, wherein the one or more planar sheets are made from polycarbonate or poly(methyl methacrylate) (PMMA). 23. The flat roof skylight (1) according to any of items 3-22, wherein the panel (4) comprises one or more roof domes. 24. The flat roof skylight (1) according to item 23, wherein the one or more roof domes are made from polycarbonate or poly(methyl methacrylate) (PMMA). 25. The flat roof skylight (1) according to any of items 3-24, wherein the panel (4) is transparent or translucent. 26. The flat roof skylight (1) according to any of items 3-25, wherein the panel frame (3) is hinged to the curb (2). 27. A bracket (7, 19, 26, 34, 35) for suspending a safety grid (6) of a fall protection device of a flat roof skylight (1) from an upper edge of a curb (2) of the skylight (1) extending upwards from a flat roof surface, which bracket (7, 19, 26, 34, 35) comprises a grid-holding part (11, 27, 37) for surrounding and / or supporting one or more bars (14) of the safety grid (6) and a suspension part (12, 20) for suspending the bracket (7, 19, 26, 34, 35) from the upper edge of the curb (2) so that the suspension part (12, 20) of the bracket (7, 19, 26, 34, 35) is sandwiched between the upper edge of the curb (2) and an edge frame (5) mounted on top of the curb (2) along the upper edge thereof. 28. The bracket (7, 19, 26, 34, 35) according to item 27, wherein the grid-holding part (11, 27, 37) and the suspension part (12, 20) are formed in one piece as an integral part of the bracket (7, 19, 26, 34, 35). 29. The bracket (7, 26, 34, 35) according to item 27 or 28, wherein the suspension part (12) of the bracket (7, 26, 34, 35) comprises one or more right-angle bends allowing it to extend upwards along an inner side of the curb (2), across the upper edge of the curb (2) and, preferably, downwards along an outer side of the curb (2). 30. The bracket (7, 26, 34, 35) according to item 29, wherein the suspension part (12) of the bracket (7, 26, 34, 35) is configured to interact with the curb (2) in such a way that the bracket (7, 26, 34, 35) is held in place when it is suspended from the upper edge of the curb (2), such as by a "click lock", a hook (13) or a grip arranged on a part of the suspension part (12) of the bracket (7, 26, 34, 35) extending downwards on an outer side of the curb (2), which hook (13) or grip is configured for engaging with the outer contour of the curb (2). 31. The bracket (19, 26, 34, 35) according to item 27 or 28, wherein the suspension part (20) of the bracket (19, 26, 34, 35) comprises one or more bends and one or more through-holes (21) allowing it to be fastened to the upper edge of the curb (2), for instance by means of one or more, preferably vertically oriented, mounting screws (22). 32. The bracket (7, 19, 26, 34, 35) according to any of the items 27-31, wherein the bracket (7, 19, 26, 34, 35) comprises, between the suspension part (12, 20) and the grid-holding part (11, 27, 37), one or more expansion sections (23, 24), each of which one or more expansion sections (23, 24) are arranged to allow the length of the expansion section (23, 24) and, thereby, the length of the bracket (7, 19, 26, 34, 35) to extend, in case a significant force impact is applied to the bracket (7, 19, 26, 34, 35) in the longitudinal direction thereof, for instance due to something heavy falling unto the safety grid (6). 33. The bracket (7, 19, 26, 34, 35) according to item 32, wherein, within each of the one or more expansion sections (23), an opening through the material of the bracket (7, 19, 26, 34, 35) is provided so that the material is divided into two separate parts, preferably with a smaller total cross-sectional area than the cross-sectional area of the bracket (7, 19, 26, 34, 35) outside the one or more expansion sections (23), allowing the length of the bracket (7, 19, 26, 34, 35) to extend by deformation of the shape of the bracket (7, 19, 26, 34, 35) within the one or more expansion sections (23). 34. The bracket (7, 19, 26, 34, 35) according to item 32, wherein, within each of the one or more expansion sections (24), the bracket (7, 19, 26, 34, 35) is provided with a plurality of, preferably right-angle, bends (25) arranged to allow the length of the bracket (7, 19, 26, 34, 35) to extend by increasing the angle of these bends (25). 35. The bracket (7, 19, 26) according to any of items 27-34, wherein the grid-holding part (27) of the bracket (7, 19, 26) comprises a supporting part (28), an outer part (29), and an inner part (30), which are arranged so that, when the bracket (7, 19, 26) is in use, one or more bars (14) of the safety grid (6) rests on the supporting part (28) between the outer part (29) and the inner part (30) of the grid-holding part (27), the outer part (29) being arranged outside the safety grid (6), and the inner part (30) being arranged inside the safety grid (6). 36. The bracket (7, 19, 26) according to item 35, wherein each of the outer part (29) and the inner part (30) of the grid-holding part (27) is provided with a through-hole (31), the through-holes (31) of the outer part (29) and the inner part (30) being arranged opposite each other for receiving a grid-holding element (32), which grid-holding element is configured for passing through both through-holes (31), thus preventing the one or more bars (14) of the safety grid (6) resting on the supporting part (28) from leaving the grid-holding part (27) of the bracket (7, 19, 26). 37. The bracket (7, 19, 26) according to item 36, wherein the grid-holding element (13) is a bolt configured to be held in place, when being positioned through the two through-holes (31), either by means of a nut or by engaging with a thread, which is cut within the material surrounding one of the two through-holes (31). 38. The bracket (7, 19, 26) according to item 36, wherein the grid-holding element (13) is a self-tapping screw configured for engaging with the material surrounding one of the two through-holes (31) for keeping the screw in place when being positioned through the two through-holes (31). 39. The bracket (7, 19, 26) according to any of items 35-38, wherein the inner part (30) comprises one or more slots (33), each of which is preferably dimensioned to receive a bar (14) of the safety grid (6), which is arranged perpendicularly to the one or more bars (14) resting on the supporting part (28). 40. The bracket (7, 19, 26) according to any of items 35-39, wherein one or more parts (38) of the inner part (30) are configured to be bent towards the outer part (29) for preventing the one or more bars (14) of the safety grid (6) resting on the supporting part (28) from leaving the grid-holding part (27) of the bracket (7, 19, 26). 41. The bracket (7, 19, 34, 35) according to any of items 27-34, wherein the bracket (7, 19, 34, 35) comprises a, preferably centrally arranged, longitudinal slot (36) passing through the suspension part (12, 20) and any expansion sections (23, 24) of the bracket (7, 19, 34, 35) in such a way that the two parts of the bracket (7, 19, 34, 35), which are on opposite sides of the longitudinal slot (36) are only connected to each other in the grid-holding part (37) of the bracket (7, 19, 34, 35), wherein the longitudinal slot (36) is configured to receive a bar (14) of the safety grid (6) so that, when the bracket (7, 19, 34, 35) is in use, a bar (14) of the safety grid (6), which is arranged perpendicularly to the wall of the curb (2), from which the bracket (7, 19, 34, 35) is suspended, rests onto the connection between the two parts of the bracket (7, 19, 34, 35), which are on opposite sides of the longitudinal slot (36).

Claims

1. A flat roof skylight (1) comprising a rectangular panel frame (3) enclosing an upward opening of the flat roof skylight (1), a panel (4), and a curb (2) configured for extending upwards from a flat roof surface, wherein the panel frame (3) supports the panel (4) on top of the curb (2), wherein the flat roof skylight (1) comprises a fall protection device, which fall protection device comprises a safety grid (6) arranged, preferably horizontally, within and across a downward opening, preferably at least 10 cm below the panel frame (3), to secure the downward opening of the flat roof skylight (1), the downward opening being enclosed by the curb (2), and wherein the safety grid (6) is suspended from an upper edge of the curb (2) and is mounted within and across the downward opening.

2. The flat roof skylight (1) according to claim 1, wherein the safety grid (6) is supported by a plurality of brackets (7, 19, 26, 34, 35), each bracket (7, 19, 26, 34, 35) comprising a grid-holding part (11, 27, 37) for surrounding and / or supporting one or more bars (14) of the safety grid (6) and a suspension part (12, 20) for suspending the bracket (7, 19, 26, 34, 35) from the upper edge of the curb (2) so that the suspension part (12, 20) of the bracket (7, 19, 26, 34, 35) is sandwiched between the upper edge of the curb (2) and an edge frame (5) mounted on top of the curb (2) along the upper edge thereof.

3. The flat roof skylight (1) according to claim 2, wherein the grid-holding part (11, 27, 37) and the suspension part (12, 20) are formed in one piece as an integral part of the bracket (7, 19, 26, 34, 35).

4. The flat roof skylight (1) according to claim 2 or 3, wherein the suspension part (12) of the bracket (7, 26, 34, 35) is configured to interact with the curb (2) in such a way that the bracket (7, 26, 34, 35) is held in place when it is suspended from the upper edge of the curb (2), such as by a "click lock", a hook (13) or a grip arranged on a part of the suspension part (12) of the bracket (7, 26, 34, 35) extending downwards on an outer side of the curb (2), which hook (13) or grip is configured for engaging with the outer contour of the curb (2).

5. The flat roof skylight (1) according to claim 2 or 3, wherein the suspension part (20) of the bracket (19, 26, 34, 35) comprises one or more bends and one or more through-holes (21) allowing it to be fastened to the upper edge of the curb (2), for instance by means of one or more, preferably vertically oriented, mounting screws (22).

6. The flat roof skylight (1) according to any of claims 2-5, wherein the bracket (7, 19, 26, 34, 35) comprises, between the suspension part (12, 20) and the grid-holding part (11, 27, 37), one or more expansion sections (23, 24), each of which one or more expansion sections (23, 24) are arranged to allow the length of the expansion section (23, 24) and, thereby, the length of the bracket (7, 19, 26, 34, 35) to extend, in case a significant downward directed force impact is applied to the grid-holding part (11, 27, 37) in the longitudinal direction of the bracket (7, 19, 26, 34, 35), for instance due to something heavy falling unto the safety grid (6).

7. The flat roof skylight (1) according to any of claims 2-6, wherein the grid-holding part (27) of the bracket (7, 19, 26) comprises a supporting part (28), an outer part (29), and an inner part (30), which are arranged so that, when the bracket (7, 19, 26) is in use, one or more bars (14) of the safety grid (6) rests on the supporting part (28) between the outer part (29) and the inner part (30) of the grid-holding part (27), the outer part (29) being arranged outside the safety grid (6), and the inner part (30) being arranged inside the safety grid (6).

8. The flat roof skylight (1) according to claim 7, wherein each of the outer part (29) and the inner part (30) of the grid-holding part (27) is provided with a through-hole (31), the through-holes (31) of the outer part (29) and the inner part (30) being arranged opposite each other for receiving a grid-holding element (32), such as a bolt or a self-tapping screw, which grid-holding element is configured for passing through both through-holes (31), thus preventing the one or more bars (14) of the safety grid (6) resting on the supporting part (28) from leaving the grid-holding part (27) of the bracket (7, 19, 26).

9. The flat roof skylight (1) according to claim 7 or 8, wherein one or more parts (38) of the inner part (30) are configured to be bent towards the outer part (29) for preventing the one or more bars (14) of the safety grid (6) resting on the supporting part (28) from leaving the grid-holding part (27) of the bracket (7, 19, 26).

10. The flat roof skylight (1) according to any of claims 2-6, wherein the bracket (7, 19, 34, 35) comprises a, preferably centrally arranged, longitudinal slot (36) passing through the suspension part (12, 20) and any expansion sections (23, 24) of the bracket (7, 19, 34, 35) in such a way that the two parts of the bracket (7, 19, 34, 35), which are on opposite sides of the longitudinal slot (36) are only connected to each other in the grid-holding part (37) of the bracket (7, 19, 34, 35), wherein the longitudinal slot (36) is configured to receive a bar (14) of the safety grid (6) so that, when the bracket (7, 19, 34, 35) is in use, a bar (14) of the safety grid (6), which is arranged perpendicularly to the wall of the curb (2), from which the bracket (7, 19, 34, 35) is suspended, rests onto the connection between the two parts of the bracket (7, 19, 34, 35), which are on opposite sides of the longitudinal slot (36).

11. The flat roof skylight (1) according to any of the preceding claims, wherein the safety grid (6) is made from metal bars (14), which are welded together.

12. The flat roof skylight (1) according to any of the preceding claims, wherein, along one or more edges of the safety grid (6), the safety grid (6) comprises two discrete parallel bars (16) arranged adjacent to each other.

13. A bracket (7, 19, 26, 34, 35) for suspending a safety grid (6) of a fall protection device of a flat roof skylight (1), such as a skylight (1) according to any of the preceding claims, from an upper edge of a curb (2) of the skylight (1) extending upwards from a flat roof surface, which bracket (7, 19, 26, 34, 35) comprises a grid-holding part (11, 27, 37) for surrounding and / or supporting one or more bars (14) of the safety grid (6) and a suspension part (12, 20) for suspending the bracket (7, 19, 26, 34, 35) from the upper edge of the curb (2) so that the suspension part (12, 20) of the bracket (7, 19, 26, 34, 35) is sandwiched between the upper edge of the curb (2) and an edge frame (5) mounted on top of the curb (2) along the upper edge thereof, wherein, preferably, the grid-holding part (11, 27, 37) and the suspension part (12, 20) are formed in one piece as an integral part of the bracket (7, 19, 26, 34, 35).

14. The bracket (7, 19, 26, 34, 35) according to claim 13, wherein the bracket (7, 19, 26, 34, 35) comprises, between the suspension part (12, 20) and the grid-holding part (11, 27, 37), one or more expansion sections (23, 24), each of which one or more expansion sections (23, 24) are arranged to allow the length of the expansion section (23, 24) and, thereby, the length of the bracket (7, 19, 26, 34, 35) to extend, in case a significant force impact is applied to the bracket (7, 19, 26, 34, 35) in the longitudinal direction thereof, for instance due to something heavy falling unto the safety grid (6).

15. The bracket (7, 19, 26) according to claim 13 or 14, wherein the grid-holding part (27) of the bracket (7, 19, 26) comprises a supporting part (28), an outer part (29), and an inner part (30), which are arranged so that, when the bracket (7, 19, 26) is in use, one or more bars (14) of the safety grid (6) rests on the supporting part (28) between the outer part (29) and the inner part (30) of the grid-holding part (27), the outer part (29) being arranged outside the safety grid (6), and the inner part (30) being arranged inside the safety grid (6), and wherein, preferably, each of the outer part (29) and the inner part (30) of the grid-holding part (27) is provided with a through-hole (31), the through-holes (31) of the outer part (29) and the inner part (30) being arranged opposite each other for receiving a grid-holding element (32), which grid-holding element is configured for passing through both through-holes (31), thus preventing the one or more bars (14) of the safety grid (6) resting on the supporting part (28) from leaving the grid-holding part (27) of the bracket (7, 19, 26).

16. The bracket (7, 19, 34, 35) according to claim 13 or 14, wherein the bracket (7, 19, 34, 35) comprises a, preferably centrally arranged, longitudinal slot (36) passing through the suspension part (12, 20) and any expansion sections (23, 24) of the bracket (7, 19, 34, 35) in such a way that the two parts of the bracket (7, 19, 34, 35), which are on opposite sides of the longitudinal slot (36) are only connected to each other in the grid-holding part (37) of the bracket (7, 19, 34, 35), wherein the longitudinal slot (36) is configured to receive a bar (14) of the safety grid (6) so that, when the bracket (7, 19, 34, 35) is in use, a bar (14) of the safety grid (6), which is arranged perpendicularly to the wall of the curb (2), from which the bracket (7, 19, 34, 35) is suspended, rests onto the connection between the two parts of the bracket (7, 19, 34, 35), which are on opposite sides of the longitudinal slot (36).

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