WO2006067213A1

WO2006067213A1 - Plaster-based perforated panel

Info

Publication number: WO2006067213A1
Application number: PCT/EP2005/057095
Authority: WO
Inventors: Bruno Flennert
Original assignee: Knauf Gips Kg
Priority date: 2004-12-22
Filing date: 2005-12-22
Publication date: 2006-06-29
Also published as: EP1674630A1; RU2368737C2; ES2391643T3; RU2007127982A; PT1831476E; DK1831476T3

Abstract

The invention relates to a plaster-based perforated panel with a front side (1), a rear side (2) and four lateral surfaces (3), at least two of the lateral surfaces (3) being provided in the form of a stepped groove.

Description

Perforated plate based on plaster

The invention relates to perforated plates based on gypsum, process for their preparation and method for their installation.

Perforated boards based on gypsum, in particular plasterboard perforated slabs and gypsum fiber perforated slabs, are used, inter alia, to improve room acoustics. They consist of a gypsum board which has a plurality of openings, which may have different shapes. Impact sound waves can penetrate through the holes and thus prevent the sound reflection. In most cases, a sound-absorbing material such as a mineral wool or a non-woven fabric is attached to the back of the perforated plate to enhance the insulating effect.

Typically, such perforated plates are used as ceiling material, but can also be used as a wall cladding.

For the production of perforated plates usually plasterboard are punched and then cut off the edge areas to obtain uniform plate dimensions. Deviations in the spacing of the holes at plate transitions or deviations in the course due to a non-parallel alignment are clearly disturbing due to the usually regular hole pattern of the perforated plates.

Typically, such apertured plates are supported on a support, e.g. mounted a metal profile or a wooden strip, wherein the adjacent edge regions must have a defined distance. For this purpose, the distance between the plates is dimensioned so that there is a uniform spacing of the holes. The alignment is carried out with appropriate tools that are based on the respective distance of the holes (depending on the Lochungs-slit type) and ensure that this distance is maintained in the transition region between two plates. The aim is to achieve a "transition-free" appearance within the total area.

The joint formed between the plates is usually closed with a putty material, for example plaster. The blanket is closed painted to compensate for color differences and to achieve a homogeneous and uniform appearance.

A disadvantage of the method is that the exact alignment of the plates to each other at least two, better three people requires that have experience in the field and the alignment is still very time consuming.

EP 1 369 215 A2 discloses a method for the production of gypsum plasterboard plates which show a high dimensional stability. The plates produced in accordance with the method described there can be laid seamlessly abutting one another without any gaps so that only one hairline remains.

Although this in principle makes it easier to install, it is disadvantageous that, due to the lack of joint area, it is not possible to compensate for slight differences in the wall or ceiling profile or height differences of the assembled panels. In addition, even minor damage to the edges of the panels results in areas of hairline where there is a wider, irregular joint that needs to be repaired before the final brushing.

In the case of the process described in EP 1 369 215 A2, too, the joint may have to be subsequently reworked, for example in order to remove excess residues of the adhesive-like products used to close the remaining residue.

No. 2,256,761 discloses a joint reinforcement made, for example, of metal, into which gypsum boards with a shiplap can be inserted. The metal clip is then concealed during plastering of the resulting plasterboard wall. Such solutions are not transferable to perforated plates, since perforated plates are not usually plastered over the entire surface. DE 203 05 974 shows a front edge connection for the installation of plasterboard and plasterboard acoustic perforated panels, in which the end face of a wave profile are milled.

The present invention has the object to overcome the above-mentioned disadvantages of the prior art.

The object is achieved by a perforated plate based on gypsum with a front and a rear side and four side surfaces, wherein at least two side surfaces are formed as stepped rabbet.

In a preferred embodiment, the at least two side surfaces are adjacent.

Adjacent means that two side surfaces meet at a corner of the plate.

Fugue means an opening to be filled at least 2 mm wide. Embodiments in which two plate edges abut one another directly and as far as possible should not produce a joint are referred to below as hair fugues.

Shiplap means that the side area is in the form of a step. In this case, the stage may have different heights or widths. In addition, the edges need not be rectangular, even chamfered or rounded shapes are possible. Rounded or chamfered edges can be in both shallow rebate and non-shiplap areas. It is also possible that a "visual gap" remains to the visible side, which is not filled. In a visual joint, a part of the joint is closed, while a gap remains on the visible side.

It is also possible that the chamfer does not exist over the entire length of an edge. There may also exist areas in which the shiplap is completely or partially offset, that is to say that the shiplap is only partially the side surfaces is present, and in the other areas completely or partially missing.

In one embodiment of the invention, the perforated plate according to the invention has exactly two adjacent side surfaces in the form of a stepped rebate. In the assembly of such plates, the assembly is carried out in each case so that a perforated plate with a side surface with stepped rabbet strikes a non-stepped side surface, so that a gap pointing into the space remains. Since the perforated plates abut directly against one another in this manner of assembly, the assembly is much easier than the standard method, since no adjustment or only minor messages depending on the hole pattern is required. Even tilting, in which the perforated plates are no longer aligned parallel to each other, is largely excluded. The resulting joint can be filled in the usual way with a filling or filling material, such as a construction adhesive, acrylic material, dispersion or mineral bonded materials or mixtures thereof or - particularly preferably - a gypsum-bound material.

This shows further advantages of the invention. In the classical assembly method, the joint is towards the rear, i. to the wall or ceiling in general open because the perforated plates are mounted on a wooden or metal profile scaffolding. Therefore, introduced filling material can emerge practically indefinitely on the back of the joint, so that a filling of the joint can not be done under pressure. However, at least low pressure is helpful in good adhesion of the filler to the side surfaces of the orifice plate.

The fact that now according to the invention, the plates abut each other at the rear or have only a gap of small width, the filling material there can no longer escape from the joint, so that the grouting can be made easier and more durable. As a result, a much better flank adhesion of the filling or filling and adhesive materials is achieved.

On the other hand, as grouting is still done, there may be minor damage to the edges (both on the front or back) or Differences in height between the assembled panels can be compensated within the framework of the jointing.

In another embodiment of the invention, the perforated plate on all four side surfaces Stufenfalze on. In this embodiment, three variants of the installation can be realized.

On the one hand, the stepped rebates can both be mounted on the back and then laid on top of each other. Such a gap is then filled with a filling material or can remain open. Care must be taken to ensure that the resulting joint width and thus the size of the stepped rebate is selected such that the finished wall or ceiling still has uniform hole spacing or a uniform, visible joint pattern is created.

Even in such a case, the laying is considerably simplified, since the alignment of the plate is much easier.

Second, the plates can also be used so that the Stufenfalze times on the front and sometimes on the back and thus interlock. In this case, a practically seamless laying can be achieved, wherein advantageously the new plate to be laid is hooked into the already mounted plate by means of the stepped rebate, so that the weight of the plate is partly supported by the already mounted plate.

In this case, the plates may be formed so that opposite sides have the longer portion of the Stufenfalzes times on the top and sometimes on the bottom. Alternatively, the longer portions of the step folds may each lie on the same side, with the second plate then being rotated in use to allow the plates to intermesh.

This laying can be done both "dry" (ie without glue or the like) and as described with bonding or filling. In the third variant, the step folds are formed differently on the different side surfaces, so that on the one hand, a suspension in the already mounted plate is possible, but on the other hand, even a gap remains, which is subsequently closed with a filler.

All embodiments of the invention, which include the closing of a joint with a filling material, have the advantage that, on the one hand, small differences in height between the assembled plates can be compensated and damage to the edges by the filling material, for example a construction adhesive, an acrylic material , Dispersion- or mineral-bonded materials or mixtures thereof or particularly preferably a gypsum-bound material in one operation with repaired or possible Lochversatze be compensated by minor reworking the Plattenstu- tion.

The perforated plates according to the invention can be obtained in a simple manner in which a plate is punched in one operation and then cut. The step folds can be obtained in various ways. In one embodiment, this is done by cutting twice, i. First, the entire plate is cut and then re-cut at a reduced depth to obtain a shiplap. It can also be done in one pass, a carving, sawing and folding. Alternatively, after the first cutting, a milling cutter can also be used to form a shiplap. In a particularly preferred embodiment, a step tool is used, with which can be cut simultaneously in two different heights. Such a tool can be used by different depth of the guide both for cutting Stufenfalzen as well as for cutting straight side surfaces.

The invention also provides an arrangement ("composite") of the plates according to the invention.

The invention will be further explained by the following drawings. FIG. 1 shows a schematic view of the perforated plate according to the invention, in which at least the side surfaces 3 shown are designed as stepped rabbets. The Stufenfalze may be symmetrical, as shown in Figure 1.

Figures 2 and 3 show embodiments in which the side surfaces are designed in different step heights.

FIG. 4 shows side surfaces in which a chamfering has been carried out in the region of the shiplap.

FIG. 5 shows a method of laying the perforated plates according to the invention. Here, a perforated plate area with a stepped rebate abuts a perforated plate area without stepped rabbet, the plates colliding seamlessly in the region of the rear side 2 or only with a hairline. The resulting joint on the front side (visible side) 1 is then filled with a filling material 4.

FIG. 6 shows a variant in which perforated plates abut one another, which have stepped folds on both colliding regions but collide on the rear side. The resulting joint is filled with filler 4.

In a further embodiment according to FIG. 7, the step folds are used to hook the plates into one another so that virtually no gap or hairline remains. This embodiment does not realize all the advantages exhibited by the other embodiments.

In a further embodiment, FIG. 8 shows how at the same time the advantage of interfacing with the filling of a joint can be utilized with correspondingly different design of the stepped rebates on the side plates.

Figure 9 shows an embodiment of the perforated plate according to the invention, in which the edge is chamfered in a partial region. This is on the one hand ensures that the filler adheres better in the resulting joint. On the other Side still allow the non-chamfered areas easier adjustment of the plate.

Figure 10 shows an embodiment of the perforated plate according to the invention, in which the stepped rabbet is discontinued in partial areas. In this case, the shiplap - as in the front variant - only partially missing, or it can be completely discontinued. The interruption of the Stufenfalzes may also be angular, oblique, etc. Due to the remaining stepped rebate areas, the inventive alignment of the plates is still achieved. For one side surface, in some embodiments up to 90% of the stepped rebate may be offset. The remaining 10% is enough to facilitate alignment.

FIG. 11 shows an embodiment based on FIG. 7, in which a viewing bevel remains on the visible side, which preferably is not filled with filler. This results in evenly spaced visible lines during installation.

FIG. 12 shows a variant in which stepped rabbets are formed as stepped rabbets in respective opposite regions. As a result, a toothing is made possible when laying.

The plates according to the invention typically have dimensions of 200 x 120 cm. However, it is also provided according to the invention that the plates are larger or smaller. In particular, for the home improvement sector recommend plates that have a smaller size, since their handling is easier when working overhead.

Claims

claims

1. perforated plate based on plaster with a front (1) and a rear side (2) and four side surfaces (3), wherein at least two side surfaces (3) are formed as stepped rabbet.

2. perforated plate based on gypsum according to claim 1, characterized in that it is a gypsum plasterboard or a gypsum fiber perforated plate.

3. perforated plate based on gypsum according to claim 1 or 2, characterized in that the at least two side surfaces are adjacent.

4. perforated plate based on gypsum according to at least one of claims 1 to 3, characterized in that at least one side surface is chamfered at least one edge.

5. perforated plate based on gypsum according to claim 4, characterized in that at least one trained as a stepped rabbet side surface is beveled.

6. perforated plate based on gypsum according to at least one of claims 1 to

5, characterized in that exactly two side surfaces are formed as stepped rabbet.

7. perforated plate based on gypsum according to at least one of claims 1 to

6, characterized in that four side surfaces are formed as stepped rabbet.

8. perforated plate according to at least one of claims 1 to 7, characterized in that the Stufenfalz is discontinued in whole or in part.

9. Arrangement with at least two perforated plates based on gypsum according to at least one of claims 1 to 8, wherein a first perforated plate based on gypsum with a trained as a stepped rabbet side in contact with a second perforated plate based on gypsum and a joint located therebetween is closed with a filling material.

10. Arrangement with at least two perforated plates based on gypsum according to at least one of claims 1 to 8, wherein a first perforated plate based on gypsum with a trained as a stepped rabbet side in contact with a

Perforated plate based on gypsum with a side also designed as a shiplap so that no gap, a hairline or a visual gap remains.

11. Arrangement according to claim 9, characterized in that the filling material is a filling or filler material, for example a construction adhesive, acrylic material, dispersion or mineral bonded materials or mixtures thereof or more preferably a gypsum-bonded material.

12. A process for producing a gypsum-based perforated plate according to at least one of claims 1 to 8, comprising the following steps:

Punching a gypsum board to obtain a gypsum-based die plate;

• Cutting along the side surfaces, with at least two adjacent side surfaces being formed as a stepped rebate.

13. A method for laying gypsum-based perforated plates according to claim 1, wherein a gypsum-based perforated plate with a side formed as a stepped rabbet is brought into contact with a gypsum-based perforated plate so that a joint is formed, which is closed with a filling material.

14. A method for laying gypsum-based perforated plates according to claim 1, wherein a gypsum-based perforated plate with a side designed as a stepped seam is in contact with a perforated plate. Plaster is brought on the basis of gypsum with a trained also as a shiplap side, so that no joint is formed.

15. A method for laying gypsum-based perforated plates according to claim 5, wherein a gypsum-based perforated plate having a side formed as a stepped rabbet is brought into contact with a gypsum-based perforated plate having a side also formed as a stepped rabbet is, and wherein at least one shiplap is beveled so that a visual gap remains.