KR20020012173A - A ceiling panel - Google Patents

Abstract

The present invention relates to a metal ceiling panel having a flange portion having complementary joining regions formed so that two panels arranged side by side can be connected to each other in a rigid manner. The shape of this plan portion coincides with the inclined S-shape, and the joint between these two panels becomes tighter in the space under the ceiling panel even in case of substantial temperature increase. The shape of the flange also results in increased stability of the base cover against the ceiling formed by the plurality of said panels when exposed to fire.

Description

Ceiling Panels {A CEILING PANEL}

UK Patent Nos. 1,249,765 and US Pat. Nos. 3,462,906 and 4,223,503, among which, are examples of ceiling panels of the type that are mounted side by side and form a bottom cover over the room in a connected state. Is disclosed. These individual panels are made of metal material machined by bending or rolling. The bottom cover is typically supported by the support structure in the form of a system of support strips, which system of supporting strips is arranged on the wall defining the room. The bottom cover may also be adapted to deliver suitable insulation and / or sound insulation, for example in the form of insulating batts located on the surface of the panel facing the ceiling.

Common characteristics of the known ceiling panels underlying the present invention are self-supporting and can be connected to each other through elastically deformable complementary joining regions arranged along the longitudinal edge side of the panel. When the panels are self supporting and connected to each other, the weight of each panel itself may be partially transferred to the support structure through adjacent panels. As the joining region extends over the entire length of the longitudinal edge side of the panel, for example, the bottom cover is required for flame permeation and the passage of smoke or other gases that may be ejected from the material burned in the room under the bottom cover. Robustness can also be guaranteed. However, known bottom covers are often difficult to remove one or more ceiling panels without damaging adjacent ceiling panels, or without disassembling screws or similar other fasteners. Removing some of these ceiling channels is, for example, allowed to approach the device of the space between the ceiling and the base cover.

Tolerances in the construction of the ceiling panel must be compensated for by static impacts on the panel, for example due to its own weight and the weight of the batting batting placed thereon and, where possible, reinforcement of the panel by ribs or the like. In addition, the tolerances must compensate for special conditions that may occur in connection with a fire in the room under the base cover. As mentioned above, in addition to the fact that the panels must be structurally arranged to prevent the transmission of flames and smoke in the bonding area, the panels should be constructed such that the stability and integrity of the base cover can be maintained at elevated temperatures for a given time. Not only do these lockouts have to ensure continuous robustness, but their weight and the force of the insulating material can, if possible, continue to transfer from one ceiling panel to the next and also to the support structure supporting the base cover. It will be appreciated that there is a requirement for the strength of the locking engagement between the flange portions, since it must be ensured that there is.

However, with the known undercover described above, it has been difficult for the undercover to meet modern legislative conditions with regard to solid time.

The present invention relates to a ceiling panel of the type defined in the preamble of claim 1.

1 is a cross-sectional view through a panel.

2 shows two panels according to the invention connected in the joining region.

3 shows the development in which the joint is deformed in a fire.

4 shows the locking section in a deformed state in the event of a fire.

5 shows an edge panel which is convenient for mounting of a ceiling panel according to the invention.

The object of the invention relates to an improved ceiling panel, and more particularly to providing advantageous properties simultaneously with respect to all of the properties described below.

The joining area enables the transfer of force from one ceiling panel to another.

The joints between the ceiling panels are quite firm in normal use.

It is also possible to remove and refit one panel without removing one or more other panels.

The load-supporting capacity and integrity of the base cover can be maintained for a relatively long time at high temperatures.

-The tightness of the cover can be maintained for a relatively long time at high temperature.

This is achieved according to the invention as defined in the features of claim 1.

It has been surprisingly observed that when the first and second flange portions present each inclined first portion, the above description may be observed. Thus, in the event of a fire, the entire flange portion will fall down towards the web portion of the ceiling panel. Since at least the complementary joining areas adjacent to the web portion maintain intimate mutual contact, this provides the joints with very reliable robustness. Furthermore, according to the present invention, in a steady state, it is possible to dismantle a single panel from another panel by acting on the associated panel by an upward pressure shock that dismantles the locking area, for example, an elastic deformation of the flange portion occurs and The locking engagement at the longitudinal side edges of may be dismantled.

The stability of the locking section is reduced when subjected to a fire shock, i.e. it is deformed by buckling due to the compressive stress which is maximal in the area of the panel most remote from the web part, so that the claim As described, when one flange portion is formed with a locking section having a free edge extending along the edge side at a maximum distance from the web portion of the panel, improved joining of two adjacent ceiling panels is achieved. This folding, accompanied by the downward deformation of the entire flange portion described above, has been shown by testing that adjacent ceiling panels in the event of fire create a greater resistance compared to normal conditions against disassembly from the locking engagement. It is clear that integrity is maintained for a relatively long time.

The angle defined in claim 3 also facilitates the assembly and disassembly of the panel to a certain extent, and the relationship defined in claim 9 provides additional advantages to the undercover by sealing, so that the ceiling panels are When constructed by a defined angular relationship, tests have shown that particularly advantageous states are achieved. In addition, the preferred embodiment provides a reduction in the vibration noise caused, which is presently generated when ceiling panels of the general type are used in ships.

The invention also relates to a bottom cover produced by assembling a plurality of ceiling panels according to the invention.

Preferred embodiments of the present invention are shown in the drawings.

1 shows a cross section through a ceiling panel 1 according to the invention. The ceiling panel 1 has a web portion 5, and in the state where the ceiling panel is mounted, the web portion 5 has an upper surface facing the upper ceiling and a lower surface facing the lower space. Have The web portion 5 forming the visible part of the ceiling panel in space is preferably flat, but optionally a smooth curvature may be provided. However, it will be understood that this web part 5 forms an imaginary main extent plane, ie a plane substantially parallel to the ceiling, with respect to the ceiling panel.

The ceiling panel 1 has a rectangular basic shape with a longitudinal center region M, and the web portion 5 preferably has a longitudinal edge side 8, 9 and a horizontal edge side. The flange portions 20, 40 are arranged along each of the transverse edge sides 8, 9 and extend the entire length of the ceiling panel 1. The ceiling panels shown are preferably made of flat metal plate workpieces, the flanges 20 and 40 being provided by cutting or similar operations.

The flange portions 20, 40 comprise complementary joining areas in which two adjacent identical ceiling panels 1 can be connected to one another. This joining region, generally indicated at 21 and 41 in FIG. 1, includes respective panel portions extending in the longitudinal direction of the ceiling panel 1 at various mutual angles.

More specifically, the joining regions 21 and 41 are each formed in a substantially S-shape inclined with respect to the longitudinal plane H. As shown in FIG. The longitudinal plane H extends perpendicular to the main area plane of the ceiling panel 1 and the angles defined below are measured with respect to the plane parallel to the longitudinal plane H and perpendicular to the main area plane. As calculated. As shown, the joining region 41 comprises a first portion 42, which first portion 42 preferably has a web portion 5 at an angle α of preferably about 12 ° with respect to the longitudinal plane H. Is spaced apart upward from This first portion 42 is connected to a second portion 44 which extends downwardly towards the web portion 5 through the bend, preferably at an angle θ of about 125 °, and the bend or constriction 45 Is connected to the third portion 46, and likewise extends upwardly away from the central region M at an angle β of about 12 °. The third part 46 is connected via another bend to the fourth part 48, which forms an angle φ of preferably about 79 ° with respect to the longitudinal plane H. This fourth portion 48 is connected to the fifth portion 50 before it reaches the virtual extension of the first portion 42, which fifth portion 50 has a web portion at an angle γ of about 12 °. It is spaced apart from (5) and extends upward. Thus, the first, third and fifth portions extend substantially parallel to each other with approximately the same inclination with respect to the longitudinal plane H, resulting in a well controlled deformation in the event of a fire. The fifth portion 50 is referred to below as the "locking section".

This also applies to the joining region 21, which is similarly made up of a first part 22 which is connected to a second part 24, the second part of which forms an end 28 to form a nose 25. Connected in turn to the equipped third part 26, the overall course of these parts approximately coincides with the course of the corresponding part of the joining region 41. However, the angle of these parts with respect to the longitudinal plane H is selected such that the angle x is greater than the angle x 'and the angle y' is greater than the angle y, thereby making the nose into the pressing portion 45. When 25 is inserted, this nose 25 provides a clamping force on the assembly of the two ceiling panels. The end described above may optionally be formed as a bend connected to an extension 29 guided backwards, which extension 29 delivers a constant rigidity to the member 26. In FIG. 1, the angles α, β and θ corresponding to the angles α, β and θ of the coupling region 41 may be added and provided to the coupling region 21.

2 shows two identical ceiling panels 1, 1 ′ arranged side by side by inserting a joining region 21 ′ into the joining region 41, ie inserting the nose 25 into the pressing part 45. Illustrated. As described above, this insertion is not necessarily formed to establish the clamping of the engagement region 21 ', but it is preferable that the engagement regions 21 and 41 deform elastically while one of the engagement regions is inserted. . As will be explained below, the insertion zone is also formed such that the ceiling panel 1 'is suspended from the ceiling panel 1, for example, so that a vertical force from the weight of the panel itself is transmitted via the joint.

When using the ceiling panel to cover the ceiling, as shown in Fig. 2, a plurality of ceiling panels 1 are mounted side by side at a desired distance under the ceiling. Prior to mounting, the support structure is arranged at a suitable height, for example in the form of a support strip fixed to the wall. This support structure is preferably of the ceiling panel 1, as each ceiling panel extends as a self-supporting unit between two support strips, as well as the longitudinal edge side of the top ceiling panel 1 of the bottom cover. The horizontal edge side is supported and retained. For example, for use as a bottom cover in a ship's cabin, the ceiling panels typically have a length of about 3 m, the distance between the two walls of the cabin, a width of about 0.3 m and a joining area 21 of about 23 mm. It corresponds to the height and the height of the engaging region 41 of about 25mm. These ceiling panels are mounted side by side alone, with the nose 25 of the new ceiling panel being inserted into the press 45. In addition, it can be seen in FIG. 2 that by applying upward pressure along the left edge side 8 of the ceiling panel, the individual ceiling panels can be easily dismantled from each other, whereby the end 28 is pressed against the portion ( 48 and the nose 25 may be moved away from the pressing unit 45. By rotating the ceiling panel, it can be removed away from the adjacent ceiling panel.

In order to comply with current and anticipated future regulations regarding the regulation of damage caused by fires, tight connections are made to prevent the passage of flames and smoke from the lower room and to keep the ceiling panels as long as possible at elevated temperatures in the room. It is necessary to construct the bottom cover to prevent collapse. By fire testing, the present invention provides an extension of the time taken until there is a real risk of collapse of the base cover.

When the bottom cover consisting of a plurality of self-supporting ceiling panels according to the invention suspended as described above is affected by a fire, the bottom cover will typically take the form of a single or double curved surface because of the linear extension of the material. . In Fig. 3, not only the flange portion 20 (not shown) to be connected, but also the exaggerated schematic view of how the flange portion 40 is deformed during a fire is shown, and the inclination of the flange portion and the special S-shaped joining region is shown. It can be seen how this causes the down conversion of the entire joint during the fire load, and this slope gradually increases. During this deformation, a stronger clamping force is generated at the same time in the joint, thereby making it more rigid. During this deformation, as shown in FIG. 4, stability failures typically occur in a portion of the cross section of the ceiling panel, in particular the maximum compressive stress occurs in the locking section 50, which in turn results in regular longitudinal folds of the ceiling profile. It takes a bulging shape with a crease. This deformation provides an increased resistance to the dissolution of the coupling between the flange portion 20 and the flange portion 40, thereby counteracting the separation of the joint.

The structure of the flanges described above first increases in case of fire against the separation forces in the joints between the panels and against the loss of the integrity of the cover by this separation and the collapse of the cover due to this loss of integrity. Resistance, and also increases the risk of required firmness against flames and glue gases.

Figure 5 shows an edge panel for use in connection with the mounting of a ceiling panel according to the invention to form a bottom cover. Such an edge profile is preferably formed as a half-ceiling panel according to the invention, as it comprises one "S" shape for connecting the adjacent ceiling panel and the edge profile, the edge panel being opposite. The longitudinal edges may be provided with bends, such that the longitudinal edges may be connected in a particularly convenient way with the locking strips extending from the support structure.

Claims (12)

A metal ceiling panel (1) which, when assembled with a corresponding plurality of ceiling panels, forms a bottom cover for the ceiling, The ceiling panel 1, Forming a main area plane for the ceiling panel 1, facing the lower room in the mounted state of the ceiling panel, the first longitudinal edge side 9, the second longitudinal edge side 8 and A web portion 5 having a lateral edge side, A first longitudinal flange portion 40 connected to the web portion 5 at the first longitudinal edge side 9, A second longitudinal flange portion 20 connected to the web portion 5 at the second longitudinal edge side 8, The flange portions 20, 40 comprise complementary locking regions 21, 41 which form a releasable locking engagement between the flange portions 20, 40 on two ceiling panels 1 positioned side by side. For ceiling panels, The first longitudinal flange portion 40 comprises: A first portion 42 extending upwards and outwards from the central region of the web portion 5 at an acute angle α with respect to a perpendicular to the main region plane, A second portion 44 extending downwards and rearwards towards the central region of the web portion 5 at an angle θ with respect to a perpendicular to the main region plane, A third portion 46 extending upwards and outwards from the central region of the web portion 5 at an acute angle β with respect to a perpendicular to the main region plane, A fourth portion 48 extending upwardly and outwardly from the central region of the web portion 5 at an angle φ with respect to a perpendicular to the main region plane, The first part 42 is connected to the second part 44, the second part 44 is connected to the third part 46, and the third part 46 is connected to the second part 44. 4 parts 48, The second flange portion 20, A first portion 22 extending upwards and inwards towards the central region of the web portion 5 at an acute angle of about α with respect to the perpendicular to the main region plane, A second portion 24 extending downward from the central region of the web part 5 at an angle of about θ to a perpendicular to the main region plane, A third portion 26 extending upwardly and inwardly towards the central region of the web portion 5 at an acute angle of about β to a perpendicular to the main region plane, Ceiling panel, characterized in that the first part (22) is connected to the second part (24) and the second part (24) is connected to the third part (26). 2. The first flange portion (40) according to claim 1, wherein the first flange portion (40) comprises a longitudinal locking section (50), wherein the locking section (50) is relative from the web portion (5) relative to the rest of the flange portion (40). And a free edge arranged at a maximum distance, extending upwardly and outwardly from the central region of the web portion 5 at an acute angle γ with respect to a vertical line with respect to the main region plane. ) Provides an obstacle to the disassembly of the lock engagement by folding deformation. The method according to claim 1 or 2, wherein the angle α is between 5 ° and 30 °, preferably between 10 ° and 15 °, The angle θ is about 110 ° to 130 °, The angle β is between 5 ° and 30 °, preferably between 10 ° and 15 °, Ceiling panel characterized in that an angle φ of 55 ° to 85 °, preferably 65 ° to 80 ° is applied to the first longitudinal flange part 40. The method of claim 1, wherein the third portion 26 of the second flange portion 20 is connected to the fourth portion 29, and the fourth portion 29 is connected to the fourth portion 29. Ceiling panel, characterized in that extends downwardly substantially parallel to one side of the third portion (26) opposite the web portion (5) via a force portion (28). 5. The method of claim 1, wherein the releasable locking engagement comprises: the fourth portion 48 of the first flange portion 40 and the third portion of the second flange portion 20. 26) A ceiling panel, which is produced by cooperation between. 6. The web portion (5), the first flange portion (40) and the second flange portion (20) in one piece according to any one of claims 1 to 5 by bending of a plate. A ceiling panel, characterized in that formed. 7. Ceiling panel according to any one of the preceding claims, characterized in that the locking engagement is provided by at least one elastic deformation of the flange portion (20,40). 8. The second flange portion (20) according to any one of the preceding claims, wherein an angle (α, β and θ) different from the corresponding angle of the first flange portion (40) by ± 2 °. Ceiling panel, characterized in that applied. The second flange portion according to any one of claims 1 to 8, wherein an angle x between the first portion 42 and the second portion 44 of the first flange portion 40 is equal to the second flange portion. Greater than an angle x 'between the first portion 22 and the second portion 24 of 20, the second portion 44 and the third portion of the first flange portion 40; The angle y between 46 is smaller than the angle y 'between the second portion 24 and the third portion 26 of the second flange portion 20, so that the two ceiling panels 1 Ceiling panel, characterized in that to provide a clamping force when assembling. 8. An angle (α, β and θ) equal to the corresponding angle of the first flange portion 40 is applied to the second flange portion 20 according to any one of the preceding claims. Ceiling panels made. The ceiling panel according to any one of claims 1 to 10, wherein the angle (α) is equal to the angle (β). A bottom cover manufactured by assembling a plurality of ceiling panels according to claim 1 side by side.