EP2241698A1 - Impact resistant suspended ceiling and attachment member therefor - Google Patents
Impact resistant suspended ceiling and attachment member therefor Download PDFInfo
- Publication number
- EP2241698A1 EP2241698A1 EP09157318A EP09157318A EP2241698A1 EP 2241698 A1 EP2241698 A1 EP 2241698A1 EP 09157318 A EP09157318 A EP 09157318A EP 09157318 A EP09157318 A EP 09157318A EP 2241698 A1 EP2241698 A1 EP 2241698A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ceiling
- stop
- impact resistant
- suspension frame
- suspended ceiling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
- E04B9/065—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising supporting beams having a folded cross-section
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
- E04B9/08—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members having the capability of expansion, e.g. in case of fire
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
- E04B9/12—Connections between non-parallel members of the supporting construction
- E04B9/127—Connections between non-parallel members of the supporting construction one member being discontinuous and abutting against the other member
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/22—Connection of slabs, panels, sheets or the like to the supporting construction
- E04B9/24—Connection of slabs, panels, sheets or the like to the supporting construction with the slabs, panels, sheets or the like positioned on the upperside of, or held against the underside of the horizontal flanges of the supporting construction or accessory means connected thereto
- E04B9/241—Connection of slabs, panels, sheets or the like to the supporting construction with the slabs, panels, sheets or the like positioned on the upperside of, or held against the underside of the horizontal flanges of the supporting construction or accessory means connected thereto with the slabs, panels, sheets or the like positioned on the upperside of the horizontal flanges of the supporting construction
Definitions
- the substantially planar frame 3 shown in figure 1 preferably comprises a grid 10 of runners 11, 12. More preferably the runners are U-shaped and preferably are made from metal. Other embodiments are however possible with respect to for example form and/or material.
Abstract
Description
- The present invention relates to an impact resistant suspended ceiling, according to the preamble of the first claim.
- The present invention also relates to an attachment member therefor.
- Such impact resistant suspended ceilings are known from
US4408428A .US4408428A describes an impact resistant suspended ceiling for covering a building structure such as a ceiling. The suspended ceiling comprises a planar frame for supporting ceiling tiles. The planar frame thereto is in the form of a grid of metal runners. The runners are T shaped and have an upright web and two flanges extending perpendicularly with respect to the upright web towards opposing sides from a first longitudinal edge of the upright web and providing support to the ceiling tiles. The suspended ceiling further comprises limiting means in the form of two-piece retaining clips which are provided to be mounted to a bead along a second longitudinal side of the runner opposing the first longitudinal edge. The clips are provided with spring elements having legs which bear down on the panels when installed and limit an upward movement of the ceiling tiles towards the building structure as a result of an impact from below, for example an impact by a ball when the ceiling is suspended above a gymnasium. - Such clips in other words offer impact resistant properties to a suspended ceiling, making it possible to mount the suspended ceiling over rooms in which it is likely that the ceiling tiles will be impacted, for example gymnasiums, basketball courts, school corridors, etc. However, such clips are not adapted for use with relative large ceiling tiles and are only adapted for use with relative small ceiling tiles, such as ceiling tiles of 2 by 2 foot. Moreover, the clips can not be used for absorbing relative large impacts since it has been found that relative large impacts increase the risk that the ceiling tiles are broken, especially when relative light and fragile ceiling tiles, such as for example mineral wool panels, are used.
- It is therefore an object of the current invention to provide an impact resistant suspended ceiling in which a wider range of ceiling tiles can be used.
- Thereto, the suspended ceiling is characterised in that the limiting means comprise a stop arranged in a second plane substantially parallel with the first plane, wherein the first and second planes are spaced by a distance greater than a thickness of the ceiling tiles such that ceiling tiles can move from the first position to a second position, the ceiling tiles in the first position being spaced from the stop and in the second position being against the stop.
- When the ceiling tiles are impacted from below, i.e. on a side of the ceiling tile not facing a building structure covered by the ceiling tiles, the impact on the ceiling tile will be at least partly transformed to a movement of the impacted ceiling tile towards the building structure. When the impact of the ceiling tile is relatively small, the full impact is absorbed by the movement of the ceiling tile towards the building construction. On the other hand when the impact of the ceiling tile is relatively large, the impact is partly absorbed by the movement of the ceiling tile while the remaining part is absorbed by the stop upon impact of the ceiling tile against the stop in the second position. The inventor in other words has found that the at least part of the impact can be absorbed by the weight of the ceiling tiles. Moreover, the stop has been found to be easily adaptable to different sorts of ceiling tiles and/or expected impacts by changing the distance between the suspension frame and the stop.
- The inventor has also found that since the ceiling tile can move substantially unhindered from the first position to the second position, the risk that the ceiling tiles become damaged, due to for example large impacts or the use of relative light and/or fragile ceiling tiles, such as for example mineral wool ceiling tiles, decreases. Without wanting to be bound by any theory, the inventor believes that since the ceiling tiles in the current invention no longer are held down, as is the case in
US4408428A by the legs of the clips, and can move substantially unhindered from the first position to the second position, the impact is more efficiently and/or faster transformed to a movement of the tile, preventing the ceiling tiles from breaking. - The inventor has found that since the risk for breaking of the ceiling tiles is reduced, ceiling tiles which are relatively light and/or fragile can be surprisingly used such that, for example, mineral wool ceiling tiles can now be used in the impact resistant suspended ceiling according to the invention. Therefore, the range of ceiling tiles which possibly can be used in the impact resistant suspended ceiling is further increased.
- In preferred embodiments according to the invention, the stop is positioned between a building structure covered by the suspended ceiling and the impact resistant suspension frame and is spaced from the suspension frame along a spacing direction from the suspension frame towards the building structure. By increasing the distance between the suspension frame and the stop in this way, it has been found that the ceiling tiles can absorb larger impacts from below before reaching the second position such that more of the impact is absorbed by movement of the ceiling tiles and less by the stop such that the stop, for example, can be made less strong and therefore, for example, less structurally complicated.
- The stop may have any suitable shape or form, such as a central disc or cross bars, however in preferred embodiments according to the current invention, the stop is made up of a substantially planar frame. Since such frames are substantially readily available in construction, no specially devised stops need to be provided, increasing the ease to install the stop according to the invention.
- In preferred embodiments according to the invention, the impact resistant suspended ceiling comprises a cooperating pair of a connector and a disconnector for mounting and dismounting the stop to or from the suspension frame, the connector connecting the suspension frame and the stop and the disconnector for disconnecting the connection between the suspension frame and the stop of the connector. Also the disconnector is accessible when the ceiling tile is at least partly in the second position at the location of the disconnector for disconnecting the connection of the connector between the suspension frame and the stop. In such embodiments, the stop can be at least partly dismounted from the suspension frame by lifting at least part of the ceiling tile to the second position at the location of the disconnector and subsequently disconnecting the connection of the connector between the suspension frame and the stop. Such embodiments therefore allow the stop to be substantially dismounted from the suspension frame, for example without having to completely remove the ceiling tile, or even all the ceiling tiles, from the suspension frame.
- In further preferred embodiments according to the invention, the connector is in the form of a lip of the stop for engaging a corresponding opening of the suspension frame and in that the suspension frame can be disconnected from the stop by moving the connector in the spacing direction by pushing the disconnector in the spacing direction. Such an arrangement allows to disengage the connector from the opening of the suspension frame by simply lifting the connector in the spacing direction by lifting the disconnector, for example using a screw driver.
- In further preferred embodiments according to the invention, the substantially planar frame comprises a grid of runners and attachment members, the attachment members attaching runners of the grid to the suspension frame and in that the connector and disconnector are part of the attachment members. The inventor has found that such grids are easy to assemble with relatively readily available materials like runners.
- In further preferred embodiments according to the invention, the attachment member comprises at a first end a first part for receiving an end part of a runner of the grid, the first part comprising a base and two upright sidewalls extending from opposing side edges of the base, the base and the upright sidewalls delimiting a volume provided to receive the end part of the runner and at a second end opposing the first end a second part extending from the base comprising the connector and the disconnector. Such attachment members have been found to be especially easy to install, for example attaching the attachment member to respectively the runner and the suspension frame, and manufacture, for example by folding the sidewalls from the base from a single piece of foldable material, such as for example metal.
- In further preferred embodiments according to the invention, the first and the second part are substantially perpendicular with respect to each other. Such arrangement of the first and the second part allow the runner attached to the attachment member to be relatively easily installed in, preferably on, the second plane by mounting the attachment member to the suspension frame with the second part extending along the spacing direction.
- In further preferred embodiments according to the invention, the attachment member comprises an abutting flange between the first part and the second part, for abutting the end part of the runner received in the first part when the end part of the runner is correctly positioned in the first part. Such an abutting flange has been found to further increase the ease of installation of the runner in the attachment member. Moreover, the correctness of the installation of the runner in the attachment member is further increased.
- In further preferred embodiments according to the current invention, the runners are U-shaped, or in other words have a U-shaped cross-section. Such U-shaped are readily available in construction and therefore increase the ease of installing the stop 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 strength with respect to, for example, a suspension grid being made of solely T-shaped runners.
- In preferred embodiments according to the present invention, the ceiling panels are impact resistant mineral wool panels provided with a facing. Although it has been found that such ceiling tiles are relatively light and/or fragile, the current invention allows such tiles to be used in situations with an elevated risk for impacts, such as for example in gymnasiums, etc., whereas the risk for breaking or damaging the ceiling tiles due to impacts is kept surprisingly low. Such ceiling tiles however can be provided with improved sound-absorbing properties αw ≥ 0.9 (mounting method A, E200) rated according to ISO 11654:1997 and measured according to ISO 354:2003 and/or reaction to fire properties class A1 according with EN 13501-1:2007, such that surprisingly, when used in the impact resistant suspended ceiling according to the current invention, the sound-absorbing properties and/or reaction to fire properties of the ceiling tiles can be surprisingly employed in situations with an elevated risk for impacts.
- Particularly in gymnasiums sound-absorption is of great importance as such rooms are traditionally subject to high level of sound, and reaction to fire is also an important parameter, as a large number of people may be present in gymnasiums and similar rooms for sports and culture.
- Although the ceiling panels may 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 1200 x 1200 mm, whereby the installation cost and weight of the suspended ceiling can be kept low.
- The present invention also relates to an attachment member for use in an impact resistant suspended ceiling according to the present invention, comprising at a first end a first part for connecting to an end part of a first runner and at a second end opposing the first end a second part comprising the connector and the disconnector.
- In preferred embodiments of the attachment member according to the present invention, the first part is provided to receive an end part of a first U-shaped runner and comprises a base and two upright sidewalls extending from opposing side edges of the base, the base and the upright sidewalls delimiting a volume provided to receive the end part of the first U-shaped runner.
- In preferred embodiments of the attachment member according to the present invention, the attachment member comprises a flange between the first and the second part, in that the first and the second part are hingedly connected to each other between a perpendicular position in which the first and the second part are substantially perpendicular with respect to each other and a longitudinal position in which the first and second part are substantially longitudinal with respect to each other, the connector cooperating with the flange as to form a snap-fit connection for attaching a second U-shaped runner to the first U-shaped runner by snap-fitting the snap-fit connection between two parallel walls of the second U-shaped runner. Such attachment members offer the possibility of mounting, using a snap-fit connection, the first runner to the second runner such that a grid can be formed. The same piece in other words can be used to form a grid of U-shaped runners and to connect the grid of U-shaped runners to the suspension frame. Therefore, the grid can be formed by U-shaped runners, readily available, and the attachment members according to the current invention.
- By the wording impact resistant should in the present context be understood a ceiling fulfilling the requirements according to the standard EN 13964;2004 NXD (preferably class 1A or 2A) and/or DIN 18032
part 3. According to EN 13964 suspended ceilings are regarded as resistant to ball impact if they and their supporting structures do not undergo any major permanent change when subjected to mechanical stressing by balls. The most strict class is 1A, according to which a standard ball is fired with an impact speed of 16.5 ± 0.8 m/s repeatedly: 12 times vertically and 12 times each from two different directions at an angle of 60°. - Other details and advantages of the impact resistant suspended ceiling and attachment member therefore according to the invention will become apparent from the enclosed figure and description of preferred embodiments of the invention.
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Figure 1 shows an overview in perspective of an impact resistant suspended ceiling according to the current invention, viewed from above. -
Figure 2 shows a detail of the stop of the impact resistant suspended ceiling offigure 1 . -
Figure 3 shows another detail of the stop of the impact resistant suspended ceiling offigure 1 . -
Figure 4 shows a view in perspective of an attachment member according to the current invention in the perpendicular position. -
Figure 5 shows a view in perspective of an attachment member according to the current invention in the longitudinal position. -
Figure 6 shows a side view of an attachment member according to the invention snap-fitted to the second U-shaped runner in a longitudinal position and an attachment according to the invention in the perpendicular position. -
Figure 7 shows a side view of a U-shaped runner mounted to a suspension frame by an attachment member in which a screw-driver is used to disconnect the attachment member from the suspension frame. -
Figure 1 shows one module of an impact resistant suspendedceiling 1 according to the invention. - The impact resistant suspended
ceiling 1 comprises asuspension frame 2 for supportingceiling tiles 4 in a first position on afirst plane 23. The impact resistant suspendedceiling 1 also comprises limitingmeans 5 for limiting an upward movement of theceiling tiles 4 as a result of theceiling tiles 4 being impacted from below. - The
suspension frame 2 shown in more detail infigure 2 and7 is a bandraster-system. However, any other suspension frame in whichceiling tiles 4 can be supported is possible such as for example a system mainly comprising T-shaped runners. However, bandraster-systems have the advantage that they have increased strength with respect to for example systems comprising mainly T-shaped runners, which is especially desired when using the impact resistant suspended ceiling in situation where relative large impacts may occur such as for example gymnasiums, etc. Bandraster-systems also have the advantage of being easily mountable and/or demountable. - The
ceiling tile 4 provided in the impact resistant suspendedceiling 1 can be anyceiling tile 4 known to the person skilled in the art but preferably is aceiling tile 4 which is made of impact resistant mineral wool panels provided with a facing. Such mineral wool panels have the advantage of having improved sound absorbing properties, preferably A(E200) and/or reaction to fire and/or incombustibility, preferably class A1. - Preferably, the panels have a thickness of between 20 mm - 40 mm, for example 40 mm.
- Preferably, the panels have a density of between 70 kg/m3 - 150 kg/m3, more preferably of between 75 kg/m3 - 110 kg/m3 and most preferably of between 70 kg/m3 - 90 kg/m3, for example 80 kg/m3.
- Dimensions of the ceiling panels may be adapted for the specific use of panels, local standards or traditions, and other considerations. Often it will be advantageous to have relatively large dimensions to reduce the installation cost and have a relatively light weight suspended ceiling. For example the ceiling panels may have dimensions of 1200 x 1200 mm or even larger, such as 1500 x 1250 mm.
- Preferably, the back facing of the panels, designed to face the building construction when in use, is made of a mineral fibre non woven tissue.
- Preferably, the front facing, opposing the back facing, is made of a mineral fibre non woven tissue, preferably reinforced with a mineral fibre scrim. The front facing may also be painted.
- The limiting means 5 shown in
figure 1 comprise astop 3 arranged in asecond plane 24, preferably on asecond plane 24 as shown infigure 7 , substantially parallel with thefirst plane 23. The first andsecond planes ceiling tiles 4 can move from the first position to a second position, theceiling tiles 4 in the first position being spaced from thestop 3 and in the second position being against thestop 3. Thetile 4 shown infigure 1 for example is positioned in the first position, whereas thetile 4 shown infigure 7 is shown in the second position, at least at the position shown. It is for example possible to lift theceiling tile 4 only at the position of theattachment member 13 such that part of theceiling tile 4 is in the second position and part of theceiling tile 4, for example the part of theceiling tile 4 opposing the part of theceiling tile 4 which is in the second position of theceiling tile 4, is in the first position. - The
stop 3, shown infigure 1 is positioned between a building structure, not shown in the figures, covered by the impact resistant suspendedceiling 1 and thesuspension frame 2 and is spaced from thesuspension frame 2 along aspacing direction 25 from thesuspension frame 2 towards the building structure. This is however not critical for the invention and thestop 3 can also be directly positioned on top of thesuspension frame 2, without leaving a distance along thespacing direction 25 between thestop 3 and thesuspension frame 2. However, it has been found that preferably the distance between thestop 3 and thesuspension frame 2 is adaptable and thestop 3 is not limited to being positioned directly on top of thesuspension frame 2 to adapt thestop 3 to thespecific ceiling tiles 4 used and the expected impacts onto theceiling tiles 4. - In addition, to avoid
ceiling tiles 4 being displaced due to a too heavy impact from below, thestop 3 preferably is provided such that the second position of theceiling tile 4 is on one hand sufficiently close to thesuspension frame 2 such that the risk for dislocation is limited or even excluded and on the other hand the second location is far enough from the first location such that relative large impacts can be substantially absorbed by the weight of theceiling tile 4. - More preferably, the distance between the first 23 and the
second plane 24 is maximally twice the thickness of theceiling tile 4, more preferably maximally the sum of the thickness of theceiling tile 4 with the thickness of thesuspension frame 2 along thespacing direction 25, when the thickness of theceiling tiles 4 is larger than the thickness of thesuspension frame 2 along thespacing direction 25, as for example shown infigure 7 . The inventor has found that in such a construction theceiling tiles 4 together with thesuspension frame 2 itself will prevent theceiling tiles 4 from dislocating after being impacted from below. When the thickness of theceiling tiles 4 is less than the thickness of thesuspension frame 2 along thespacing direction 25, the distance between the first 23 and the second 24 plane preferably is maximally the sum of the thickness of theceiling tile 4 with the thickness of thesuspension frame 2 along spacingdirection 25. In such a construction, thesuspension frame 2 limiting the risk that theceiling tiles 4 dislocate subsequent impact from below. - Preferably, the
stop 3 is substantially made from metal. However, other materials such as for example wood, plastic, etc. are possible. Although thestop 3 can be made from a single material, the material of the parts of the stop are preferably adapted to their function. - The
stop 3 shown infigure 1 covers substantially asingle ceiling tile 4 and limits the upward movement of substantially thesingle ceiling tile 4. However, this is not critical for the invention and thestop 3 can also extend overmultiple ceiling tiles 4. However, by providing eachceiling tile 4 with itsindividual stop 3, thestop 3 can be adapted to the specific requirements depending on for example the location of theceiling tile 4 and its specific technical characteristics such as for example weight. - Preferably, the
stop 3 is substantially planar. However thestop 3 can alternatively be substantially unplanar. Thestop 3 can for example comprise substantially longitudinal elements protruding from the building construction covered by theceiling tiles 4 towards theceiling tiles 4. However, it has been found that a substantiallyplanar stop 3 provides a stop having a certain area against which theceiling tile 4 can move after being impacted, which has been found to decrease the risk that theceiling tile 4 is dislocated due to an impact from below. - Such a substantially
planar stop 3 can in addition to providing impact resistant properties to the impact resistant suspendedceiling 1, also be used as a structure to which further elements can be suspended. Thestop 3 can for example be used to mount lighting, piping, wiring, air-conditioning elements, etc. to the suspended impact resistant ceiling by structurally mounting the further elements to thestop 3. The further elements, such as lighting, air-conditioning outlets and/or inlets, etc., may for example protrude through thesuspension frame 2 and/or theceiling tiles 4 to below the impact resistant suspendedceiling 1. - Although the substantially
planar stop 3 shown in the figures is made up of a substantiallyplanar frame 3, this is not critical for the invention. Alternatively, surfaces could be provided as astop 3 above theceiling tiles 4. For example a square, rectangular, oval, round, triangular, trapezoidal, etc. surface could be provided above theceiling tiles 4 as astop 3. Such a surface could be for example made from wood, metal, plastic, etc. However, it has been found that it is sufficient to provide aframe 3 asstop 3 for limiting the upward movement of theceiling tiles 4 and that it is not necessary, although possible, to provide surfaces to limit the upward movement ofceiling tiles 4 due to an impact from below. - The substantially
planar frame 3 shown infigure 1 preferably comprises agrid 10 ofrunners - The
grid 10 shown infigure 1 is attached to thesuspension frame 2 withattachment members 13, of which an example is shown in more detail infigure 2 . However, thestop 3, although not shown in the figures, can also be attached directly to the building structure which is covered by the impact resistant suspendedceiling 1. However, the former is preferred since the building structure often can only be reached in a limited way due to thesuspension frame 2 which has already been installed. In such a configuration thestop 3 can be attached to thesuspension frame 2 and the difficulty of reaching the building structure is no longer limiting the ease of constructing the impact resistant suspendedceiling 1. - Although any type of
attachment member 13 known to the person skilled in the art is possible, theattachment member 13 preferably comprises at a first end 14 afirst part 16 for receiving anend part 22 of arunner grid 10 and at asecond end 15 opposing the first end 14 asecond end part 17 provided to be attached to thesuspension frame 2. Thefirst part 16 comprises abase 18 and twoupright sidewalls base 18. Thebase 18 and theupright sidewalls end part 22 of therunner figure 2 , therunner 11 can be further fixed to theattachment member 13 by a screw. However, any other means known to the person skilled in the art are possible, such as for example, nailing, soldering, bolting, welding, gluing, etc. - The
attachment member 13 preferably is made of metal, more preferably steel but can also be aluminium depending on the demand on stability during fires or incombustibility. This is however not critical for the invention and theattachment member 13 can also be made from for example wood, plastic, etc. - As shown in
figure 2 the first and thesecond part first part 16 with respect to thesecond part 17 is possible, depending on the desired position of therunners ceiling tiles 4. - Preferably, the
attachment member 13 comprises an abuttingflange 21 between thefirst part 16 and thesecond part 17. The abuttingflange 21 abuts theend part 22 of therunner 11 received in thefirst part 16 when theend part 22 of therunner 11 is correctly positioned in thefirst part 16. Although such an abuttingflange 21 is not critical for the invention, it allows therunner 11 to be more easily and more correctly positioned in theattachment member 11. - Preferably, the impact resistant suspended
ceiling 1 comprises a cooperating pair of aconnector 6 and adisconnector 7 for mounting and dismounting thestop 3 to or from thesuspension frame 2. Theconnector 6 connects thesuspension frame 2 and thestop 3. Thedisconnector 7 is provided for disconnecting the connection between thesuspension frame 2 and thestop 3 of theconnector 6. Such a pair is for example shown infigure 7 . Theconnector 6 allows thestop 3 to be mounted to thesuspension frame 2, whereas thedisconnector 7 allows to disconnect the connection between thesuspension frame 2 and thestop 3 for dismounting thestop 3 from thesuspension frame 2, in this case by pushing thedisconnector 7 in thespacing direction 25. Theconnector 6 and thedisconnector 7 are, infigure 7 , provided to theattachment member 13, more particularly to thesecond part 17. However, other cooperating pairs of connectors and/ordisconnectors disconnector 7 can also alternatively allow disconnecting the connection of theconnector 6 by pushing, pulling, etc. and/or the cooperating pair of the connector and thedisconnector stop 3 orattachment member 13, etc. - As shown in
figure 7 , thedisconnector 7 is accessible when theceiling tile 4 is at least partly in the second position at the location of thedisconnector 7 for disconnecting the connection of theconnector 6 between thesuspension frame 2 and thestop 3. In the case offigure 7 , when theceiling tile 4 is lifted along thespacing direction 25 towards the second position, enough space is available between theceiling tile 4 and thefirst plane 23 for accessing thedisconnector 7 with for example a screw-driver such that the connection of theconnector 6 can be disconnected. Depending on the type and location of thedisconnector 7, theceiling tile 4 will have to be lifted more or less along thespacing direction 25 to leave sufficient space for manipulating thedisconnector 7. Such a construction allows thestop 3 to be at least partly dismounted from thesuspension frame 2 by simply partly lifting part of aceiling tile 4 near the cooperating pair of the connector and thedisconnector - When each
ceiling tile 4 is provided with itsown stop 3, as described above, the cooperating pair of theconnector 6 and thedisconnector 7 allows to reach the plenum substantially directly above eachindividual ceiling tile 4 by sufficiently dismounting thestop 3 from thesuspension frame 2 by disconnecting at least one connection between aconnector 6 and thesuspension frame 2 by using thecorresponding disconnector 7 such that theceiling tile 4 can be pushed out of thesuspension frame 2 and for example over anadjacent ceiling tile 4. Thestop 3 in that case does not substantially increase the difficulty with which the plenum above aspecific ceiling tile 4 can be reached. - Preferably, the
connector 6 is in the form of alip 8 of thestop 3 engaging acorresponding opening 9 of thesuspension frame 2. Preferably, thelip 8 is provided toopenings 9 in a bandraster-system, preferablystandard openings 9 provided in the bandraster-system. More preferably, thelip 8 has a shape which allows it to sufficiently interlock thestop 3 and thesuspension grid 3, more preferably theattachment member 13 and thesuspension grid 2, along a substantially horizontal direction but allows the connection of theconnector 6 to be broken by moving thelip 8 along thespacing direction 25. Alip 8 with such a shape is for example shown infigure 7 . - Preferably, the
disconnector 7 is provided to allow a tool, such as the srew-driver shown infigure 7 , to interlock with it such that thedisconnector 7 can move theconnector 6 along thespacing direction 25 to disconnect the connection between thesuspension frame 2 and thestop 3. More preferably, thedisconnector 7 thereto is a protruding lip, as shown infigure 7 although this is not critical for the invention. -
Figure 4 shows a detail of the preferred embodiment of theattachment member 13 according to the current invention. Theattachment member 13 comprises at thefirst end 14 thefirst part 16 for connecting to anend part 22 of afirst runner 11 and at thesecond end 15 opposing thefirst end 14 thesecond part 17 comprising theconnector 6 and thedisconnector 7. - Preferably, the
attachment member 13 is provided to be bent such that thesecond part 17 is bent towards the first part, preferably when subjected to an action by a tool such as a screw-driver as shown infigure 7 , when moving theconnector 6 out of thecorresponding opening 9 in thesuspension frame 2 to facilitate removal of theconnector 6 from theopening 9. More preferably, the first 16 and the second 17 part of theattachment member 13 thereto are hingeably connected. - Preferably, the
first part 16 is provided to be mounted to and more preferably to receive an end part of a firstU-shaped runner base 18 and twoupright sidewalls base 18, thebase 18 and theupright sidewalls U-shaped runner first part 16 could, alternatively and for example, only comprise abase 18 and/or only one of the twoupright sidewalls figure 4 , thesecond part 17 preferably extends from thebase 18. - As can be seen from
figures 4 , theattachment member 13 preferably comprises aflange 21 between the first and thesecond part 17 and, as can be seen from comparingfigure 4 and5 , the first 16 and thesecond part 17 are hingedly connected to each other between a perpendicular position in which the first and thesecond part 17 are substantially perpendicular with respect to each other and a longitudinal position in which the first 16 andsecond part 17 are substantially longitudinal with respect to each other. Theconnector 6 cooperates with theflange 21 as to form a snap-fit connection for attaching a secondU-shaped runner 12 to the firstU-shaped runner 11 by snap-fitting the snap-fit connection between two parallel walls of the secondU-shaped runner 12. - When the
first part 16 and thesecond part 17 are hingedly connected to each other between the perpendicular position shown infigure 4 and used for attaching runners of thegrid 10, as for example shown infigure 2 , and a longitudinal position in which the first 16 and thesecond part 17 are substantially longitudinal with respect to each other, as shown infigure 5 , theattachment member 13 can also be used to interconnectrunners figure 3 . In such case, theflange 21 in the perpendicular position and theconnector 6 cooperate as to form a snap-fit connection for attaching a secondU-shaped runner 12 to therunner 11 by snap-fitting the snap-fit connection between two parallel walls of the secondU-shaped runner 12. Such a snap-fit connection is for example shown in the side view offigure 6 . - More preferably, the
flange 21 is the abuttingflange 21 described above when theattachment member 13 is in the perpendicular position, as can be seen infigure 4 . - As can be seen from comparing
figures 4 and5 , theflange 21 can be bent between two positions. In a first position of theflange 21, shown infigure 4 , theflange 21 is substantially coplanar with thesecond part 17 of theattachment member 13 and preferably is the abuttingflange 21. In a second position of theflange 21, shown infigure 5 , theflange 21 is bent out of the plane of thesecond part 16 and is part of the snap-fit connection. The bending of theflange 21 preferably can be done by manually pushing against theflange 21 such that no tools are needed to change the position of theflange 21. - With the
attachment members 13 according to the invention and standard U-shaped members, thestop 3 can be fully assembled without having to use substantial additional components which are less commonly available. Moreover, by changing the length of the U-shaped members, thestop 3 can be fully adjusted to any size of theceiling tiles 4 and/or thesuspension frame 2. - As an example tests have been carried out with ceiling panels made of mineral wool (Rockfon Boxer 40x1200x1200 mm) mounted in a suspended ceiling system as outlined above with a distance between the stop and the panel of 5 to 8 mm. The impact resistance of the tested ceiling was rated to class 1A. Based on the test results it is expected that the same rating can be achieved with panels of 40x1500x1225 mm.
Claims (16)
- Impact resistant suspended ceiling (1) comprising a suspension frame (2) for supporting ceiling tiles (4) in a first position on a first plane (23) and limiting means (5) for limiting an upward movement of the ceiling tiles (4) as a result of the ceiling tiles (4) being impacted from below, characterised in that the limiting means (5) comprise a stop (3) arranged in a second plane (24) substantially parallel with the first plane (23), wherein the first and second planes (23, 24) are spaced by a distance greater than a thickness of the ceiling tiles such that ceiling tiles (4) can move from the first position to a second position, the ceiling tiles (4) in the first position being spaced from the stop (3) and in the second position being against the stop (3).
- Impact resistant suspended ceiling according to claim 1, characterised in that the stop (3) is positioned between a building structure covered by the impact resistant suspended ceiling (1) and the suspension frame (2) and is spaced from the suspension frame (2) along a spacing direction (25) from the suspension frame (2) towards the building structure.
- Impact resistant suspended ceiling according to claim 1 or 2, characterised in that the stop (3) is made up of a substantially planar frame (3).
- Impact resistant suspended ceiling (1) as claimed in any one of the preceding claims, characterised in that the impact resistant suspended ceiling (1) comprises a cooperating pair of a connector (6) and a disconnector (7) for mounting and dismounting the stop (3) to or from the suspension frame (2), the connector (6) connecting the suspension frame (2) and the stop (3) and the disconnector (7) for disconnecting the connection between the suspension frame (2) and the stop (3) of the connector (6) and in that the disconnector (7) is accessible when the ceiling tile (4) is at least partly in the second position at the location of the disconnector (7) for disconnecting the connection of the connector (6) between the suspension frame (2) and the stop (3).
- Impact resistant suspended ceiling (1) as claimed in claim 4, characterised in that the connector (6) is in the form of a lip (8) of the stop (3) for engaging a corresponding opening (9) of the suspension frame (2) and in that the suspension frame (2) can be disconnected from the stop (3) by moving the connector (6) in the spacing direction (25) by pushing the disconnector (7) in the spacing direction (25).
- Impact resistant suspended ceiling (1) as claimed in any one of claims 4 - 5, characterised in that the substantially planar frame (3) comprises a grid (10) of runners (11, 12) and attachment members (13), the attachment members (13) attaching runners (11, 12) of the grid (10) to the suspension frame (2) and in that the connector (6) and disconnector (7) are part of the attachment members (13).
- Impact resistant suspended ceiling (1) as claimed in claim 6, characterised in that the attachment member (13) comprises at a first end (14) a first part (16) for receiving an end part (22) of a runner (11, 12) of the grid (10), the first part (16) comprising a base (18) and two upright sidewalls (19, 20) extending from opposing side edges of the base (18), the base (18) and the upright sidewalls (19, 20) delimiting a volume provided to receive the end part (22) of the runner (11, 12) and at a second end (15) opposing the first end (14) a second part (17) extending from the base (18) comprising the connector (6) and the disconnector (7).
- Impact resistant suspended ceiling (1) as claimed in claim 7, characterised in that the first (16) and the second part (17) are substantially perpendicular with respect to each other.
- Impacts resistant suspended ceiling (1) as claimed in claim 7 or 8, characterised in that the attachment member (13) comprises an abutting flange (21) between the first part (16) and the second part (17), for abutting the end part (22) of the runner (11, 12) received in the first part (16) when the end part (22) of the runner (11, 12) is correctly positioned in the first part (16).
- Impact resistant suspended ceiling (1) as claimed in any one of claims 6 - 9, characterised in that the runners (11, 12) are U-shaped.
- Impact resistant suspended ceiling (1) for covering a building structure as claimed in any one of the preceding claims,
characterised in that the suspension frame (2) is a bandraster-system. - Impact resistant suspended ceiling (1) according to any one of the of the preceding claims, characterised in that the ceiling panels (4) are impact resistant mineral wool panels provided with a facing.
- Impact resistant suspended ceiling (1) according to claim 12, characterised in that the ceiling panels (4) have a size of at least 600 x 600 mm, preferably at least 1200 x 1200 mm.
- An attachment member (13) for use in an impact resistant suspended ceiling (1) according to any one of claims 6 - 10, comprising at a first end (14) a first part (16) for connecting to an end part (22) of a first runner (11) and at a second end (15) opposing the first end (14) a second part (17) comprising the connector (6) and the disconnector (7).
- An attachment member (13) as claimed in claim 14, characterised in that the first part (16) is provided to receive an end part of a first U-shaped runner (11, 12) and comprises a base (18) and two upright sidewalls (19, 20) extending from opposing side edges of the base (18), the base (18) and the upright sidewalls (19, 20) delimiting a volume provided to receive the end part of the first U-shaped runner (11, 12).
- An attachment member as claimed in claim 14 or 15, characterised in that the attachment member (13) comprises a flange (21) between the first and the second part (17), in that the first (16) and the second part (17) are hingedly connected to each other between a perpendicular position in which the first and the second part (17) are substantially perpendicular with respect to each other and a longitudinal position in which the first (16) and second part (17) are substantially longitudinal with respect to each other, the connector (6) cooperating with the flange (21) as to form a snap-fit connection for attaching a second U-shaped runner (11) to the first U-shaped runner (11) by snap-fitting the snap-fit connection between two parallel walls of the second U-shaped runner (12).
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL09157318T PL2241698T3 (en) | 2009-04-03 | 2009-04-03 | Impact resistant suspended ceiling |
ES09157318T ES2390536T3 (en) | 2009-04-03 | 2009-04-03 | Impact-resistant suspended ceiling |
EP09157318A EP2241698B1 (en) | 2009-04-03 | 2009-04-03 | Impact resistant suspended ceiling |
DK09157318.8T DK2241698T3 (en) | 2009-04-03 | 2009-04-03 | Impactproof, recessed ceiling |
RU2010112691/03A RU2521233C2 (en) | 2009-04-03 | 2010-04-01 | Shock-resistant suspended ceiling and its fastening element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09157318A EP2241698B1 (en) | 2009-04-03 | 2009-04-03 | Impact resistant suspended ceiling |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2241698A1 true EP2241698A1 (en) | 2010-10-20 |
EP2241698B1 EP2241698B1 (en) | 2012-07-04 |
Family
ID=41110457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09157318A Active EP2241698B1 (en) | 2009-04-03 | 2009-04-03 | Impact resistant suspended ceiling |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2241698B1 (en) |
DK (1) | DK2241698T3 (en) |
ES (1) | ES2390536T3 (en) |
PL (1) | PL2241698T3 (en) |
RU (1) | RU2521233C2 (en) |
Cited By (12)
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CN106677404A (en) * | 2016-12-15 | 2017-05-17 | 浙江亚厦装饰股份有限公司 | Integrated suspended ceiling and installation method |
CN107060067A (en) * | 2017-05-08 | 2017-08-18 | 姚攀峰 | A kind of superposed type prefabricated reinforced concrete structure system and its construction method |
CN107060181A (en) * | 2017-05-25 | 2017-08-18 | 广州康普顿至高建材有限公司 | A kind of spring clip cross assembling keel and its installation method |
CN107514088A (en) * | 2017-09-15 | 2017-12-26 | 韩合桥 | Integrated modular flat-top and its construction method |
CN108086571A (en) * | 2017-12-30 | 2018-05-29 | 浙江亚厦装饰股份有限公司 | Receive side drop level furred ceiling |
CN109138256A (en) * | 2018-09-27 | 2019-01-04 | 广州康普顿至高建材有限公司 | A kind of movable sheet hanging smallpox |
CN109537795A (en) * | 2018-12-07 | 2019-03-29 | 河南三阳建材科技有限公司 | It can any curved Multi-functional ceiling profile and ceiling structure |
CN113374149A (en) * | 2021-05-20 | 2021-09-10 | 南京银城建设发展股份有限公司 | Indoor metal sheet wall top surface suspended ceiling structure of using |
CN113898105A (en) * | 2021-09-17 | 2022-01-07 | 金螳螂精装科技(苏州)有限公司 | Assembled soft membrane suspended ceiling structure with secretly adorn dysmorphism and take light trough |
CN114775885A (en) * | 2022-05-11 | 2022-07-22 | 深圳市上域建设集团有限公司 | Modularization furred ceiling with adjustable based on BIM technique |
CN115162600A (en) * | 2022-06-24 | 2022-10-11 | 广东众安建筑工程有限公司 | Construction method of ceiling with concealed keel and mineral wool board |
CN115419205A (en) * | 2022-10-19 | 2022-12-02 | 杭州鼎梦建设有限公司 | Building decoration suspended ceiling based on BIM technology and installation method thereof |
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GB896576A (en) * | 1960-03-11 | 1962-05-16 | Georg Johannes Goyer | Ceiling panel suspension means |
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FR2657379A1 (en) * | 1990-01-23 | 1991-07-26 | Placoplatre Sa | Lug (tab) for installing a spacer between two profiled sections |
EP0652338A1 (en) * | 1993-11-05 | 1995-05-10 | Richter-System GmbH & Co. KG | False ceiling |
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Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106677404A (en) * | 2016-12-15 | 2017-05-17 | 浙江亚厦装饰股份有限公司 | Integrated suspended ceiling and installation method |
CN107060067B (en) * | 2017-05-08 | 2023-05-16 | 姚攀峰 | Superimposed precast reinforced concrete structure system and construction method thereof |
CN107060067A (en) * | 2017-05-08 | 2017-08-18 | 姚攀峰 | A kind of superposed type prefabricated reinforced concrete structure system and its construction method |
CN107060181A (en) * | 2017-05-25 | 2017-08-18 | 广州康普顿至高建材有限公司 | A kind of spring clip cross assembling keel and its installation method |
CN107514088A (en) * | 2017-09-15 | 2017-12-26 | 韩合桥 | Integrated modular flat-top and its construction method |
CN108086571A (en) * | 2017-12-30 | 2018-05-29 | 浙江亚厦装饰股份有限公司 | Receive side drop level furred ceiling |
CN108086571B (en) * | 2017-12-30 | 2023-12-19 | 浙江亚厦装饰股份有限公司 | Edge-closing drop-stage suspended ceiling |
CN109138256A (en) * | 2018-09-27 | 2019-01-04 | 广州康普顿至高建材有限公司 | A kind of movable sheet hanging smallpox |
CN109537795A (en) * | 2018-12-07 | 2019-03-29 | 河南三阳建材科技有限公司 | It can any curved Multi-functional ceiling profile and ceiling structure |
CN109537795B (en) * | 2018-12-07 | 2024-01-30 | 河南三阳建材科技有限公司 | Multifunctional suspended ceiling profile capable of being bent at will and suspended ceiling structure |
CN113374149A (en) * | 2021-05-20 | 2021-09-10 | 南京银城建设发展股份有限公司 | Indoor metal sheet wall top surface suspended ceiling structure of using |
CN113898105A (en) * | 2021-09-17 | 2022-01-07 | 金螳螂精装科技(苏州)有限公司 | Assembled soft membrane suspended ceiling structure with secretly adorn dysmorphism and take light trough |
CN114775885A (en) * | 2022-05-11 | 2022-07-22 | 深圳市上域建设集团有限公司 | Modularization furred ceiling with adjustable based on BIM technique |
CN115162600A (en) * | 2022-06-24 | 2022-10-11 | 广东众安建筑工程有限公司 | Construction method of ceiling with concealed keel and mineral wool board |
CN115162600B (en) * | 2022-06-24 | 2024-01-26 | 广东众安建筑工程有限公司 | Construction method of suspended ceiling of hidden keel mineral wool board |
CN115419205A (en) * | 2022-10-19 | 2022-12-02 | 杭州鼎梦建设有限公司 | Building decoration suspended ceiling based on BIM technology and installation method thereof |
Also Published As
Publication number | Publication date |
---|---|
ES2390536T3 (en) | 2012-11-13 |
PL2241698T3 (en) | 2012-12-31 |
RU2521233C2 (en) | 2014-06-27 |
DK2241698T3 (en) | 2012-10-01 |
RU2010112691A (en) | 2011-10-20 |
EP2241698B1 (en) | 2012-07-04 |
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