ES2390536T3 - Impact-resistant suspended ceiling - Google Patents

Abstract

Suspended ceiling (1) impact resistant, comprising a suspension frame (2) to support ceiling plates (4) in a first position on a foreground (23) and limiting means (5) to limit upward movement of the ceiling plates (4) as a consequence of the impact on said ceiling plates (4) from below, in which the limiting means (5) comprise a stop element (3) arranged in the background (24) substantially parallel to the first plane (23), in which the first and second planes (23, 24) are separated a distance greater than a thickness of the ceiling plates, so that the ceiling plates (4) can be moved from the first position to a second position, the ceiling plates (4) being in the first position separated from the stop element (3) and being in the second position against the stop element (3), characterized in that the suspended ceiling ( 1) Impact resistant comprises a pair of a connector (6) and a disconnector (7), which cooperate with each other, to mount and remove the stop element (3) on or from the suspension frame (2), connecting the connector (6) to the suspension frame (2) and the stop element (3), and the disconnect (7) to disconnect the connection of the connector (6) between the suspension frame (2) and the stop element (3), and because the disconnect (7) is accessible when the ceiling plate (4) is, at least partially, in the second position in the place of the disconnector (7) to disconnect the connection of the connector (6).

Description

Suspended ceiling resistant to impacts.

The present invention relates to a suspended ceiling resistant to impacts, according to the preamble of the first claim.

US2667667 describes a suspended ceiling resistant to impacts according to the preamble of claim 1.

From documents US5603193A; EP0652338A and US4408428A are known additional impact resistant suspended ceilings. Document US4408428A describes a suspended ceiling resistant to impacts, to cover a building structure, such as a roof. The suspended ceiling comprises a flat frame to support ceiling plates. The flat frame for this has the form of a network of metal slides. The slides are T-shaped and have a vertical band and two tabs that extend perpendicularly with respect to the vertical band to opposite sides from a first longitudinal edge of the vertical band and that provide support for the ceiling plates. The suspended ceiling further comprises limiting means in the form of two-piece retaining clips that are intended to be mounted on a flange along a second longitudinal side of the slide, opposite the first longitudinal edge. The clips are provided with elastic elements with legs that rest on the panels when they are installed and limit the upward movement of the roof plates in the direction of the building structure, as a result of an impact from below, for example an impact of a ball when the ceiling is suspended above a gym.

In other words, such clips offer impact resistance properties for a suspended ceiling, making it possible to mount the suspended ceiling on premises where roof plates are likely to be impacted, for example gyms, basketball courts, hallways. school, etc. However, such clips are not adapted for use with relatively large ceiling plates and are only adapted for use with plates

relatively small roof ceilings, such as 2 by 2 foot ceiling plates (≈ 0.61 by 0.61 meters). In addition, the

clips cannot be used to cushion relatively large impacts, since relatively large impacts have been found to increase the risk of roof plates breaking, especially when relatively light and fragile ceiling plates are used, such as panels of mineral wool.

Therefore, an object of the present invention is to provide a suspended ceiling resistant to impacts in which a wider range of ceiling plates can be used.

For this, the suspended ceiling is characterized in that the limiting means comprise a stop element arranged in a second plane substantially parallel to the first plane, in which the first and second planes are separated a distance greater than a thickness of the ceiling plates , so that the ceiling plates can be moved from the first position to a second position, the ceiling plates being in the first position separated from the stop element and being in the second position against the stop element.

When it is impacted from below on the ceiling plates, that is, on one side of the ceiling plate that is not facing a building structure, covered by the ceiling plates, the impact on the ceiling plate will be transformed, at less partially, in a movement of the roof plate in which it has impacted towards the building structure. When the impact on the roof plate is relatively small, the movement of the roof plate towards the building construction absorbs all the impact. On the other hand, when the impact on the ceiling plate is relatively large, the movement thereof partially absorbs the impact, while the stop element, after the impact of the ceiling plate against the stop element in the second position , cushion the remaining part. In other words, the inventor has found that the weight of the ceiling plates can absorb at least that part of the impact. In addition, it has been found that the stop element can be easily adapted to different kinds of ceiling plates and / or expected impacts by changing the distance between the suspension frame and the stop element.

The inventor has also found that, since the ceiling plate can be moved substantially unobstructed from the first position to the second position, the risk of the ceiling plates being damaged is reduced, for example due to large impacts or the use of relatively light and / or fragile ceiling plates, such as for example mineral wool ceiling plates. Without wishing to be bound by any theory, the inventor considers that, since the ceiling plates in the present invention are not retained, as is the case of document US4408428A by means of the legs of the clips, and can be moved substantially without obstacles from the First position to the second position, the impact is transformed more efficiently and / or faster in a movement of the plate, preventing the roof plates from breaking.

The inventor has found that, since the risk of breaking the roof plates is reduced, ceiling plates that are relatively light and / or fragile can be used surprisingly so that, for example, they can be used today mineral wool ceiling plates in the suspended ceiling resistant to impacts according to the invention. Therefore, the range of ceiling plates that can possibly be used in the suspended ceiling resistant to impacts is further increased.

In preferred embodiments according to the invention, the stop element is located between a building structure, covered by the suspended ceiling and the impact resistant suspension frame, and is separated from the suspension frame along a direction of separation from the suspension frame towards the building structure. By increasing the distance between the suspension frame and the abutment element in this way, it has been found that the ceiling plates can absorb greater impacts from below before reaching the second position, so that most of the impact is damped by the movement of the ceiling plates and the smaller one by means of the stop element, so that the stop element, for example, can be made less resistant and therefore, for example, less structurally complicated.

The stopper element may have any suitable configuration or shape, such as a central disk or crossbars, however, in preferred embodiments according to the present invention, the stopper element is composed of a substantially flat frame. Since such frames are substantially readily available in construction, specially created stop elements do not have to be provided, increasing the ease of installing the stop element according to the invention.

According to the present invention, the impact resistant suspended ceiling comprises a pair of a connector and a disconnector, which cooperate with each other, to mount and disassemble the abutment element in or of the suspension frame, the connector connecting the suspension frame and the stopper element, and the disconnect to disconnect the connector connection between the suspension frame and the stopper element. In addition, the disconnector is accessible when the ceiling plate is, at least partially, in the second position in the place of the disconnector to disconnect the connection of the connector between the suspension frame and the abutment element. In such embodiments, the stopper element can be removed, at least partially, from the suspension frame by raising at least part of the ceiling plate to the second position in the place of the disconnector and subsequently disconnecting the connector connection between the suspension frame and the stop element. Such embodiments therefore allow the stop element to be substantially disassembled from the suspension frame, for example without having to completely remove the ceiling plate, or even all ceiling plates, from the suspension frame.

In further preferred embodiments according to the invention, the connector is in the form of a lip of the stopper element to be applied to a corresponding opening of the suspension frame, and because the suspension frame can be disconnected from the stopper element by moving the connector in the separation direction by pushing the disconnector in said direction. Such an arrangement allows the connector of the opening of the suspension frame to be disengaged by simply raising the connector in the separation direction by raising the disconnector, for example using a screwdriver.

In further preferred embodiments according to the invention, the substantially flat frame comprises a framework of slides and fixing members, the fixing members fixing the slides of the fabric to the suspension frame, and because the connector and the disconnector are part of the fixing members . The inventor has found that such fabrics are easy to assemble with available materials with relative ease similar to sliding.

In further preferred embodiments according to the invention, the fixing member comprises, at a first end, a first part for receiving an end part of a slide of the fabric, the first part comprising a base and two vertical side walls extending from the edges opposite sides of the base, delimiting the base and the vertical side walls a volume intended to receive the end part of the slide and, at a second end opposite the first end, a second part extending from the base, comprising the connector and the disconnector. It has been found that said fixing members are especially easy to install, for example by fixing the fixing member, respectively, to the slide and to the suspension frame, and to be manufactured, for example by folding the side walls from the base of a single piece of folding material, such as metal.

In further preferred embodiments according to the invention, the first and the second part are substantially perpendicular to each other. Such an arrangement of the first and the second part allows the slide fixed to the fixing member to be installed with relative ease in the second plane, preferably thereon, by mounting the fixing member to the suspension frame, the second part extending along of the separation direction.

In further preferred embodiments according to the invention, the fixing member comprises a support flange between the first part and the second part, to support the end part of the slide received in the first part, when the end part of the slide is correctly positioned In the first part. It has been found that such a support flange further increases the ease of installation of the slide in the fixing member. In addition, the accuracy of the installation of the slide in the fixing member is further increased.

In further preferred embodiments according to the present invention, the slides are U-shaped or, in other words, have a U-shaped cross-section. Such U-shapes are readily available in the construction and therefore increase the ease of installing the stop element above the suspended ceiling.

In preferred embodiments according to the invention, the suspension frame is a Bandraster system. Such a Bandraster system has the advantage of being readily available and having an increased resistance with respect to, for example, a suspension framework that is made exclusively of T-shaped slides.

In preferred embodiments according to the present invention, the ceiling panels are impact resistant mineral wool panels, provided with a cover. Although it has been found that such ceiling plates are relatively light and / or fragile, the present invention allows said plates to be used in situations with a high risk of impacts, such as for example in gyms, etc., while keeping reduced Surprisingly, the risk of breakage or damage to the roof plates due to impacts. However, said ceiling plates can be provided with improved soundproofing properties αW ≥ 0.9 (mounting method A, E200) rated according to ISO 11654: 1997 and measured according to ISO 354: 2003, and / or reaction properties to class A1 fire according to EN 13501-1: 2007, so that, surprisingly, when soundproofing properties and / or reaction properties are used in the suspended ceiling resistant to impacts according to the present invention The fire of the ceiling plates can be used surprisingly in situations with a high risk of impacts.

Particularly in gyms, soundproofing is of great importance since such premises are traditionally subjected to a high sound level, and the reaction to fire is also an important parameter, since a large number of people can be present in gyms and similar venues for sports and cultural activities.

Although the ceiling panels can have any suitable dimension, it is currently preferred that the ceiling panels have a size of at least 600 x 600 mm, preferably at least 1,200 x 1,200 mm, whereby the installation cost can be kept reduced and the weight of the suspended ceiling.

The term “impact resistant” should mean, in the present context, a ceiling that meets the

requirements according to standard EN 13964; 2004 NXD (preferably class 1A or 2A) and / or DIN 18032, part 3. According to EN 13964, suspended ceilings are considered to be resistant to the impact of balls if they and their structures Support do not experience any major permanent change when subjected to mechanical stress due to balls. The strictest class is 1A, in which a standard ball is fired repeatedly with an impact speed of 16.5 ± 0.8 m / s: 12 times vertically and 12 times, in each case, from two different directions with An angle of 60o.

Other details and advantages of the impact resistant suspended ceiling and of the fixing member therefor, according to the invention, will be apparent from the attached figure and description of preferred embodiments of the invention.

Figure 1 shows an overview, in perspective, of a suspended ceiling resistant to impacts according to the present invention, seen from above.

Figure 2 shows a detail of the impact resistant suspended ceiling stop member of Figure 1.

Figure 3 shows another detail of the impact resistant suspended ceiling stop member of Figure 1.

Figure 4 shows a perspective view of a fixing member according to the present invention, in perpendicular position.

Figure 5 shows a perspective view of a fixing member according to the present invention, in longitudinal position.

Figure 6 shows a side view of a fixing member according to the invention, adjusted by elastic jump to the second U-shaped slide in longitudinal position and of a fixing member according to the invention, in perpendicular position.

Figure 7 shows a side view of a U-shaped slide mounted on a suspension frame by means of a fixing member, in which a screwdriver is used to disconnect the fixing member from the suspension frame.

Figure 1 shows a module of a suspended ceiling 1 resistant to impacts according to the invention.

The impact resistant suspended ceiling 1 comprises a suspension frame 2 for supporting ceiling plates 4 in a first position on a foreground 23. The impact resistant suspended ceiling 1 also includes limiting means 5 for limiting upward movement of the ceiling plates 4, as a consequence of the impact on said ceiling plates 4 from below.

The suspension frame 2 shown in more detail in Figures 2 and 7 is a Bandraster system. However, any other suspension frame in which ceiling plates 4 can be supported is possible, such as, for example, a system comprising mainly T-shaped slides. However, Bandraster systems have the advantage of having increased resistance. with respect to, for example, systems comprising mainly T-shaped slides, which are especially preferred when using the impact resistant suspended ceiling in situations where relatively large impacts may occur, such as in gyms, for example , etc. Bandraster systems also have the advantage of being easily assembled and / or disassembled.

The ceiling plate 4, arranged in the suspended ceiling 1 impact resistant, can be any ceiling plate 4 known to the person skilled in the art, but is preferably a ceiling plate 4 which is composed of mineral wool panels resistant to the impacts, provided with a cover. Such mineral wool panels have the advantage of having improved soundproofing properties, preferably A (E200), and / or reaction to fire and / or incombustibility, preferably class A1.

Preferably, the panels are between 20 mm and 40 mm thick, for example 40 mm.

Preferably, the panels have a density of between 70 kg / m3 and 150 kg / m3, more preferably between 75 kg / m3 and 110 kg / m3, and most preferably between 70 kg / m3 and 90 kg / m3, for example 80 kg / m3.

The dimensions of the ceiling panels may be adapted for their specific use, local standards or traditions, and other considerations. Often, it will be advantageous to have relatively large dimensions to reduce the cost of installation and to have a relatively light suspended ceiling. For example, roof panels can have dimensions of 1,200 x 1,200 mm or even larger, such as

1,500 x 1,250 mm.

Preferably, the back cover of the panels, designed to face the building construction when in use, is made of a nonwoven web of mineral fibers.

Preferably, the front cover, opposite to the back cover, is made of a nonwoven web of mineral fibers, preferably reinforced with a slab of mineral fibers. The front cover can also be painted.

The limiting means 5 shown in Figure 1 comprise a stopper element 3 arranged in a second plane 24, preferably on a second plane 24 as shown in Figure 7, substantially parallel with the first plane 23. The first and second planes 23 , 24 are separated a distance greater than a thickness of the ceiling plates, so that the ceiling plates 4 can be moved from the first position to a second position, said ceiling plates 4 being in the first position separated from the element of stop 3 and being in the second position against the stop element 3. The plate 4 shown in figure 1, for example, is located in the first position, while the plate 4 shown in figure 7 is illustrated in the second position , at least in the position shown. It is possible, for example, to lift the ceiling plate 4 only in the position of the fixing member 13, so that part of said ceiling plate 4 is in the second position and another part, for example the part of the ceiling plate 4 opposite the part of said ceiling plate 4 that is in the second position of the ceiling plate 4, is in the first position.

The stopper element 3, shown in figure 1, is located between a building structure, not illustrated in the figures, covered by the impact resistant suspended ceiling 1 and the suspension frame 2, and is separated from said frame of suspension 2 along a separation direction 25 from the suspension frame 2 towards the building structure. However, this is not critical to the invention and the abutment element 3 can also be located directly on top of the suspension frame 2, without leaving a certain distance along the separation direction 25 between the abutment element. 3 and the suspension frame 2. However, it has been found that, preferably, the distance between the stop element 3 and the suspension frame 2 is adaptable, and the stop element 3 is not limited to being located directly on the upper part of the suspension frame 2 to adapt said stop element 3 to the specific ceiling plates 4 that are used and to the expected impacts on said ceiling plates 4.

Furthermore, in order to prevent the ceiling plates 4 from being displaced due to an impact too strong from below, the stop element 3 is preferably arranged so that the second position of the ceiling plate 4 is, on the one hand, sufficiently close to the suspension frame 2 so that the risk of displacement is limited or even excluded and, on the other hand, the second position is sufficiently far from the first position so that the weight of the ceiling plate 4 can substantially absorb relatively large impacts.

More preferably, the distance between the first 23 and the second flat 24 is, at most, twice the thickness of the ceiling plate 4, more preferably, at most, the sum of the thickness of the ceiling plate 4 and the thickness of the suspension frame 2 along the separation direction 25, when the thickness of the ceiling plates 4 is greater than the thickness of the suspension frame 2 along the separation direction 25, as shown for example in the Figure 7. The inventor has found that, in such a construction, the ceiling plates 4, together with the suspension frame 2 itself, will prevent said ceiling plates 4 from moving after it is impacted from below. When the thickness of the ceiling plates 4 is less than the thickness of the suspension frame 2 along the separation direction 25, the distance between the first 23 and the second flat 24 is preferably, at most, the sum of the thickness of the ceiling plate 4 and the thickness of the suspension frame 2 along the separation direction 25. In such a construction, the suspension frame 2 limits the risk that the ceiling plates 4 subsequently move to impact from below .

Preferably, the stopper element 3 is made substantially from metal. However, other materials such as wood, plastic, etc. are possible. Although the stop element 3 may be made of a single material, the material of the parts of the stop element is preferably adapted to its function.

The stopper element 3 shown in Figure 1 substantially covers a single ceiling plate 4 and limits the substantially upward movement of said single ceiling plate 4. However, this is not critical to the invention and the stopper element 3 is it can also extend over multiple ceiling plates 4. However, by providing each ceiling plate 4 with its individual stop element 3, the stop element 3 can be adapted to the specific requirements depending, for example, on the place of the plate of roof 4 and its specific technical characteristics such as weight.

Preferably, the stopper element 3 is substantially flat. However, the stop element 3 may alternatively be substantially non-planar. The stopper element 3 may comprise, for example, substantially longitudinal elements protruding from the building construction, covered by the roof plates 4, towards said roof plates 4. However, it has been found that a stop element 3 substantially plane provides a stop that has a certain area against which the ceiling plate 4 can move after it is impacted, which has been found to decrease the risk of the ceiling plate 4 moving due to an impact from below.

Said substantially flat stop element 3 can also provide impact resistance properties for the suspended ceiling 1 impact resistant, also used as a structure from which additional elements may be suspended. The stopper element 3 can be used, for example, to mount lighting, conduction, wiring, air conditioning, etc. on the suspended ceiling resistant to impacts, structurally assembling the additional elements in the abutment element 3. The additional elements, such as exits and / or lighting, air conditioning, etc. inputs, can protrude, for example through the suspension frame 2 and / or ceiling plates 4, up to the suspended ceiling 1 impact resistant.

Although the substantially flat abutment element 3 shown in the figures is composed of a substantially flat frame 3, this is not critical to the invention. Alternatively, the surfaces could be arranged as a stopper element 3 above the ceiling plates 4. For example, a square, rectangular, oval, round, triangular, trapezoidal surface, etc. it could be arranged above the ceiling plates 4 as a stop element 3. Said surface could be manufactured, for example, from wood, metal, plastic, etc. However, it has been found that it is sufficient to provide a frame 3 as a stop element 3 to limit the upward movement of the ceiling plates 4 and that it is not necessary, although possible, to provide surfaces to limit the upward movement of said plates ceiling plates 4 due to an impact from below.

The substantially flat frame 3 shown in Figure 1 preferably comprises a framework 10 of slides 11, 12. More preferably, the slides are U-shaped and are preferably made from metal. However, other embodiments are possible with respect to, for example, the shape and / or the material.

The lattice 10 shown in figure 1 is fixed to the suspension frame 2 by fixing members 13, of which an example is shown in more detail in figure 2. However, the stop element 3, although not shown in The figures can also be fixed directly to the building structure that is covered by the suspended ceiling 1 resistant to impacts. However, the former is preferred, since the building structure can often only be reached in a limited way because the suspension frame has already been installed

2. In such a configuration, the abutment element 3 may be fixed to the suspension frame 2 and the difficulty in reaching the building structure is no longer limited to the ease of constructing the suspended ceiling 1 resistant to impacts.

Although any type of fixing member 13 known to the person skilled in the art is possible, the fixing member 13 preferably comprises, at a first end 14, a first part 16 for receiving an end part 22 of a slide 11, 12 of the fabric 10 and, at a second end 15 opposite the first end 14, a second end part 17 intended to be fixed to the suspension frame 2. The first part 16 comprises a base 18 and two vertical side walls 19, 20 extending from the opposite sides of the base 18. The base 18 and the vertical side walls 19, 20 delimit a volume intended to receive the end portion 22 of the slide 11, 12. As can be seen in Figure 2, the slide 11 can be fixed in addition to the fixing member 13 by means of a screw. However, any other means known to those skilled in the art, such as nailing, tin welding, bolt fixing, welding, bonding, etc., is possible.

The fixing member 13 is preferably made of metal, more preferably steel, but it can also be aluminum depending on the demands of stability during fire or incombustibility. However, this is not critical to the invention and the fixing member 13 may also be made from, for example, wood, plastic, etc.

As shown in Figure 2, the first and second parts 16, 17 are substantially perpendicular to each other. However, this is not critical to the invention and any type of position of the first part 16 with respect to the second part 17 is possible, depending on the desired position of the slides 11, 12 on the ceiling plates 4.

Preferably, the fixing member 13 comprises a support flange 21 between the first part 16 and the second part 17. The support flange 21 rests against the end part 22 of the slide 11 received in the first part 16, when said part end 22 of the slide 11 is correctly located in said first part 16. Although said support flange 21 is not critical to the invention, it allows the slide 11 to be located more easily and more correctly in the fixing member 13.

The impact-resistant suspended ceiling 1 comprises a pair of a connector 6 and a disconnector 7, which cooperate with each other, to mount and disassemble the stopper element 3 in or of the suspension frame 2. The connector 6 connects the suspension frame 2 and the stopper element 3. The disconnector 7 is provided to disconnect the connection of the connector 6 between the suspension frame 2 and the stopper element 3. Figure 7 shows, for example, said pair. The connector 6 allows the stop element 3 to be mounted on the suspension frame 2, while the disconnect 7 allows the connection between the suspension frame 2 and the stop element 3 to be disconnected, to remove the element from the suspension frame 2 stop 3, in this case, pushing the disconnect 7 in the separation direction 25. The connector 6 and the disconnect 7 are provided, in FIG. 7, for the fixing member 13, more particularly for the second part 17. No However, other pairs of connectors and / or disconnectors 6, 7, which cooperate with each other, are possible. For example, the disconnector 7 can also alternatively allow disconnecting the connection of the connector 6 by pushing, pulling, etc., and / or the pair of the connector and the disconnector 6, 7, which cooperate with each other, are arranged on a different part of the element stopper 3 or fixing member 13, etc.

As shown in Figure 7, the disconnect 7 is accessible when the ceiling plate 4 is, at least partially, in the second position in the place of disconnecting 7 to disconnect the connection of the connector 6 between the suspension frame 2 and the stop element 3. In the case of Figure 7, when the ceiling plate 4 is raised along the separation direction 25 towards the second position, sufficient space is available between the ceiling plate 4 and the first plane 23 to access the disconnector 7 with, for example, a screwdriver, so that the connection of the connector 6 can be disconnected. Depending on the type and location of the disconnector 7, the ceiling plate 4 will have to be lifted more or less along of the separation direction 25 to leave enough space for the purpose of manipulating the disconnect 7. Such a construction allows the stopper element 3 to be removed, at least partially, from the suspension frame 2 simply lifts Partially part of a ceiling plate 4 near the pair of the connector and the disconnector 6, 7, which cooperate with each other.

When each ceiling plate 4 is provided with its own stop element 3, as described above, the pair of the connector 6 and the disconnector 7, which cooperate with each other, allows the chamber to be reached substantially directly above each plate of the individual roof 4 by sufficiently disassembling the stop element 3 from the suspension frame 2 by disconnecting at least one connection between a connector 6 and the suspension frame 2 using the corresponding disconnect 7, so that the ceiling plate 4 can be removed from the suspension frame 2 and place, for example, on an adjacent ceiling plate 4. The stopper element 3, in that case, does not substantially increase the difficulty with which the chamber can be reached above a specific ceiling plate 4.

Preferably, the connector 6 is in the form of a lip 8 of the stopper element 3 which is applied to a corresponding opening 9 of the suspension frame 2. Preferably, the lip 8 is arranged in openings 9 of a Bandraster system, preferably standard openings 9 arranged in the Bandraster system. More preferably, the lip 8 has a shape that allows it to sufficiently engage the abutment element 3 and the suspension framework 3, more preferably the fixing member 13 and the suspension framework 2, along a substantially horizontal direction, but it allows the connection of the connector 6 to be broken by moving the lip 8 along the separation direction 25. Figure 7 shows, for example, a lip 8 with such a shape.

Preferably, the disconnector 7 is provided to allow a tool, such as the screwdriver shown in Figure 7, to be interlocked therewith so that said disconnector 7 can move the connector 6 along the separation direction 25 to disconnect the connection between the suspension frame 2 and the stopper element 3. More preferably, the disconnector 7 for this is a protruding lip, as shown in Figure 7, although this is not critical to the invention.

Figure 4 shows a detail of the preferred embodiment of the fixing member 13 according to the present invention. The fixing member 13 comprises, at the first end 14, the first part 16 for connecting to an end part 22 of a first slide 11 and, at the second end 15 opposite to the first end 14, the second part 17 comprising the connector 6 and the disconnect 7.

Preferably, the fixing member 13 is provided to be curved so that the second part 17 bends towards the first part, preferably when subjected to the action of a tool such as a screwdriver, as shown in Figure 7, when the connector 6 is removed from the corresponding opening 9 in the suspension frame 2 to facilitate the removal of the connector 6 from the opening 9. More preferably, the first 16 and the second part 17 of the fixing member 13 for this are connected so articulate.

Preferably, the first part 16 is provided to be mounted on, and more preferably, to receive an end portion of a first U-shaped slide 11, 12, and more preferably, although not critical to the invention, comprises base 18 and two vertical side walls 19, 20 extending from the opposite side edges of the base 18, delimiting the base 18 and the vertical side walls 19, 20 a volume intended to receive the end portion of the first slide 11, 12 U-shaped. However, the first part 16 could alternatively comprise, for example, only one base 18 and / or only one of the two vertical side walls 19, 20, as the person skilled in the art deems appropriate. As can be seen from Figure 4, the second part 17 preferably extends from the base 18.

As can be seen from figure 4, the fixing member 13 preferably comprises a flange 21 between the first and second part 17 and, as can be seen by comparing figures 4 and 5, the first 16 and the second part 17 they are connected to each other in an articulated manner between a perpendicular position, in which the first and second part 17 are substantially perpendicular to each other, and a longitudinal position, in which the first part 16 and the second part 17 are substantially longitudinal to each other. The connector 6 cooperates with the flange 21 to form an adjustment connection with elastic jump in order to fix a second U-shaped slide 12 to the first U-shaped slide 11, adjusting by elastic jump the adjustment connection with elastic jump between two parallel walls of the second U-shaped slide 12.

When the first part 16 and the second part 17 are connected to each other in an articulated manner between the perpendicular position shown in Figure 4 and used to fix the slides of the fabric 10, as shown for example in Figure 2, and a longitudinal position , wherein the first 16 and the second part 17 are substantially longitudinal to each other, as shown in Figure 5, the fixing member 13 can also be used to interconnect the slides 11 and 12, as shown in detail in the Figure 3. In this case, the flange 21 in the perpendicular position and the connector 6 cooperate to form an adjustment connection with elastic jump in order to fix a second U-shaped slide 12 to the slide 11, adjusting by elastic jump the snap-fit adjustment connection between two parallel walls of the second U-shaped slide 12. In the side view of Figure 6, for example, such snap-fit connection is shown elastic

More preferably, as can be seen in Figure 4, the flange 21 is the support flange 21 described above, when the fixing member 13 is in perpendicular position.

As can be seen by comparing figures 4 and 5, the tab 21 can be curved between two positions. In a first position of the flange 21, shown in FIG. 4, said flange 21 is substantially coplanar with the second part 17 of the fixing member 13 and is preferably the support flange 21. In a second position of the flange 21, shown in Figure 5, said flange 21 is curved out of the plane of the second part 16 and is an element of the snap-fit adjustment connection. Preferably, the bending of the flange 21 can be performed by manually pushing against it so that no tools are needed to change the position of said flange 21.

With the fixing members 13 and the standard U-shaped members, the stopper element 3 can be completely assembled without having to use substantial additional components that are commonly less available. Furthermore, by changing the length of the U-shaped members, the stop element 3 can be completely adjusted to any size of the ceiling plates 4 and / or of the suspension frame 2.

As an example, tests have been carried out with roof panels made of mineral wool (Rockfon Boxer 40 x 1,200 x 1,200 mm) mounted on a suspended ceiling system, as described above, with a distance between the stop element and the panel from 5 to 8 mm. The impact resistance of the tested roof was rated class 1A. Based on the test results, it is expected that the same assessment can be achieved with 40 x 1,500 x 1,225 mm panels.

Claims (12)

1. Impact-resistant suspended ceiling (1), comprising a suspension frame (2) to support ceiling plates (4) in a first position on a foreground (23) and limiting means (5) to limit movement upwards of the ceiling plates (4) as a result of the impact on said ceiling plates

(4)

 from below, in which the limiting means (5) comprise a stop element (3) arranged in a second plane (24) substantially parallel with the first plane (23), in which the first and second planes (23, 24 ) are separated a distance greater than a thickness of the ceiling plates, so that the ceiling plates (4) can be moved from the first position to a second position, the ceiling plates (4) being in the first position separated of the abutment element (3) and being in the second position against the abutment element (3), characterized in that the impact resistant suspended ceiling (1) comprises a pair of a connector (6) and a disconnector (7), cooperating with each other, to mount and disassemble the stop element (3) on or from the suspension frame (2), connecting the connector (6) the suspension frame (2) and the stop element (3), and the disconnector

(7)

 to disconnect the connection of the connector (6) between the suspension frame (2) and the stop element (3), and because the disconnect (7) is accessible when the ceiling plate (4) is, at least partially, in the second position in the place of the disconnector (7) to disconnect the connector connection (6).

2. Impact-resistant suspended ceiling according to claim 1, characterized in that the stop element

(3)

 it is located between a building structure, covered by the suspended ceiling (1) resistant to impacts, and the suspension frame (2), and is separated from the suspension frame (2) along a separation direction

(25)

 from the suspension frame (2) to the building structure.

3.

 Impact-resistant suspended ceiling according to claim 1 or 2, characterized in that the stop element (3) is integrated by a substantially flat frame (3).

Four.

 Suspended ceiling (1) impact resistant according to any of claims 1-3, characterized in that the connector (6) has the shape of a lip (8) of the stopper element (3) to be applied to a corresponding opening (9) of the suspension frame (2), and because the suspension frame (2) can be disconnected from the stopper element (3) by moving the connector (6) in the separation direction (25) by pushing the disconnector (7) in said separation direction (25).

5.

 Suspended ceiling (1) impact resistant according to any of claims 1-4, characterized in that the substantially flat frame (3) comprises a framework (10) of slides (11, 12) and fixing members (13), fixing the fixing members (13) the slides (11, 12) of the fabric (10) to the suspension frame (2), and because the connector (6) and the disconnector (7) are part of the fixing members (13).

6.

 Suspended ceiling (1) impact resistant according to claim 5, characterized in that the fixing member (13) comprises, at a first end (14), a first part (16) to receive an end part (22) of a slide (11, 12) of the fabric (10), the first part (16) comprising a base (18) and two vertical side walls (19, 20) extending from the opposite side edges of the base (18), delimiting the base (18) and vertical side walls (19, 20) a volume intended to receive the end part (22) of the slide (11, 12) and, at a second end (15) opposite the first end (14), a second part (17) extending from the base (18), comprising the connector (6) and the disconnector (7).

7.

 Suspended ceiling (1) impact resistant according to claim 6, characterized in that the first (16) and the second (17) part are substantially perpendicular to each other.

8.

 Suspended ceiling (1) impact resistant according to claim 6 or 7, characterized in that the fixing member (13) comprises a support flange (21) between the first part (16) and the second part (17), to support the end part (22) of the slide (11, 12) received in the first part (16), when the end part (22) of the slide (11, 12) is correctly located in the first part (16).

9.

 Suspended ceiling (1) impact resistant according to any of claims 5-8, characterized in that the slides (11, 12) are U-shaped.

10.

 Suspended ceiling (1) resistant to impacts, to cover a building structure, according to any of the preceding claims, characterized in that the suspension frame (2) is a Bandraster system.

eleven.

 Suspended ceiling (1) impact resistant according to any of the preceding claims, characterized in that the ceiling panels (4) are impact resistant mineral wool panels, provided with a cover.

12.

 Suspended ceiling (1) impact resistant according to claim 11, characterized in that the roof panels (4) have a size of at least 600 x 600 mm, preferably at least 1,200 x 1,200 mm.