Use of a construction panel for abutment-side laying and joint-side filling, and construction panel

Abstract

The invention relates to use of a construction panel (1) for end-side laying and joint-side filling, wherein the construction panel (1) has a body (5). The body (5) has a top side (2) and a bottom side (3), and end sides (4) which connect the top and bottom side and lie opposite one another. The body (5) contains wood material or consists thereof. A first continuous cover layer (6), preferably a paper layer, is applied on the top side (2) and the end sides (4) and a second continuous layer (6'), preferably a paper layer, is applied on the bottom side (3) and the end sides (4). On the top side (2), a transition profile (7) is formed on at least one end side (4), by means of which transition profile the thickness of the body (5) is reduced on the end side (4).

Description

[0001] Use of a building board for butt-side installation and joint-side filling as well as building board

[0002] The present invention relates to a use of a building board for butt-side installation and joint-side filling according to patent claim 1, as well as to a building board with a body having a top side and a bottom side as well as opposing end sides connecting these, according to patent claim 4, patent claim 10 and patent claim 11, respectively.

[0003] Building boards of the type in question are used for the production of lightweight or non-load-bearing walls, ceilings or other cladding, particularly in interior construction or as interior construction boards.

[0004] The installation or processing of building boards of the type in question is usually carried out by side-by-side joining of preferably identical building boards, which are then attached to a suitable substructure, such as a sheet steel frame or a wooden structure. However, when used as a so-called dry plaster, the building boards can also be directly bonded to a substrate or bare wall, for example, using a suitable bonding agent or other bonding agent.

[0005] The joints formed by the butting of the building boards, particularly along their length, are filled with filler to ensure a smooth and uninterrupted transition between the adjacent building boards. To simplify filling, the building boards in question have a profile or tapered section on their longitudinal ends, reducing the thickness of the body at the end compared to the nominal thickness. This enlarges the joint formed by the butting and simplifies subsequent filling.

[0006] Gypsum plasterboards are widely known for the application of butt-jointed joints and subsequent jointing described above. Gypsum plasterboards have a gypsum body with cardboard facings applied to both sides.

[0007] From a sustainability perspective, however, the use of plasterboard construction panels is disadvantageous. This particularly applies to the energy-intensive production process. Furthermore, gypsum residues must be laboriously separated from wood and concrete materials, or other waste materials, and disposed of separately.

[0008] The underlying problem of the doctrine is to avoid the aforementioned difficulties from the point of view of insufficient sustainability, without, however, having to accept restrictions in processing or handling, in particular in the butt-side installation and / or joint-side filling.

[0009] According to a first aspect of the invention, the above-described problem is solved by using a building board according to claim 1 and by a building board according to claim 4. Embodiments of these aspects of the invention are the subject of the relevant subclaims.

[0010] It goes without saying that embodiments, embodiments, advantages and the like which are mentioned below only for one aspect of the invention for the purpose of avoiding repetition, apply accordingly with regard to the other aspect of the invention.

[0011] With that in mind, the present invention will be described in more detail below.

[0012] The basic idea of ​​the first aspect of the invention is to use a building board for butt-fitting and joint-filling, which has a body that contains or consists of a wood-based material. The wood-based material can be a wood-based chipboard or fiber material pressed with an adhesive. A first continuous cover layer, preferably a paper layer, is applied to the top side and the end faces of the body, and a second continuous cover layer, preferably a paper layer, is applied to the underside and the end faces. A transition profile is formed on the top side on at least one end face, by means of which the thickness of the body is reduced at the respective end face.

[0013] In other words, the teaching of the invention is based on a plasterboard construction board known from the prior art, wherein a wood material is used instead of the plaster material to form the body.

[0014] The building board to be used or provided according to the invention offers significant advantages in terms of sustainability compared to building boards based on gypsum, particularly with regard to environmentally friendly disposal and material recycling. As a renewable natural raw material, wood offers the best conditions for a holistic, sustainable economy and, as a natural raw material, has significant ecological advantages over other materials, especially in construction.

[0015] Accordingly, the building board proposed according to the invention can be integrated or used particularly in construction concepts that primarily rely on natural building materials such as wood for improved sustainability, for example, in prefabricated house construction or log cabin construction or in other timber construction projects. The building board proposed according to the invention can be implemented particularly effectively in these concepts.

[0016] However, the improvements in sustainability do not result in any compromises in the processing or technical handling of the building board according to the invention, for example, compared to plasterboard. The wood material used has similar or at least comparable properties to gypsum, for example, with regard to density, durability, and mechanical stability. In this respect, the building board according to the invention represents a technically at least equivalent solution to known plasterboard, but with significantly improved properties from a sustainability perspective.

[0017] In particular, the use of the wood-based material has also proven to be advantageous from a technical point of view because the body designed according to the invention can be particularly conveniently screwed or mounted in any other way to substructures or other fastening sections, in particular those also containing or consisting of a wood-based material.

[0018] The body is particularly preferably made of chipboard, in particular lightweight chipboard.

[0019] In particular, the construction board is placed on the transition profile with another, preferably identically designed, construction board at the end face and filled along the joint. The additional construction board preferably has an identically designed transition profile, so that the abutting transition profiles of the construction boards form the joint to be filled.

[0020] It is understood that the following designs relating to the building board can be used for joint-side installation and subsequent filling, especially since they are specifically intended or designed to be advantageous with regard to the use in question.

[0021] It is advantageous if the thickness on the front side is reduced by 5% to 20%, preferably 10% to 15%, compared to the maximum thickness of the body. Depending on the application, a reduction compared to the maximum thickness can be achieved in such a way that a sufficiently large, wide and / or deep joint is formed in the longitudinal joint area with an adjacent building board, which is then filled to create a smooth or uninterrupted transition. According to a preferred embodiment of the building board, the transition profile has at least one depression extending from the maximum thickness to the reduced thickness. The depression is preferably designed as a flattened area and / or bevel, in particular in the form of a flat gradient section. The depression can have a depth of 2 mm to 7 mm, preferably 3 mm to 5 mm and / or a width of 15 mm to 25 mm, preferably 18 mm to 22 mm.The recessed transition profile has proven particularly practical for efficient filling, as the filler can be efficiently distributed along the recess, ensuring a particularly flat and smooth transition to the adjacent carcass section with maximum thickness. Furthermore, the recess increases the contact area between the carcass surface or the facing top layer and the filler, resulting in robust and resistant adhesion.

[0022] The transition profile preferably has at least one profile section with a reduced thickness adjacent to the end face and, preferably, to the depression, preferably with the planar section having a width of 15 mm to 20 mm, preferably 17 mm to 18 mm. The planar section forms a flat base for the filler and ensures a particularly smooth surface of the filled joint.

[0023] In addition, it has proven advantageous if the transition profile has a rounded portion that preferably transitions from the planar section to the end face, preferably with the rounded portion having a radius of 3 mm to 7 mm. The preferably provided rounded portion increases the contact surface between the filler and the body and enables high-quality and / or durable filling at the transition between the abutting building panels. In this context, it should be noted that the amount of filler used naturally depends on the design of the joint or the transition profile. With regard to the inventive design of the transition profile, it has proven advantageous that the area of ​​the transition profile is enlarged by the formation of the depression and / or the planar section and / or the depression, so that the filler or filler has as much contact surface as possible with the covering surface.This, without wishing to be limited to any particular theory, prevents the adjacent long sides of the building boards from absorbing tensile or compressive stress, thus reducing the risk of cracking in the filled transition area. This creates a larger joint volume on the upper side, which is advantageous during filling, improves the strength of the board joint due to the filler, and ultimately ensures a high surface quality in the filled transition area.

[0024] In this respect, the building board according to the invention with the correspondingly designed transition profile has proven to be particularly useful for filling in the joint area.

[0025] Generally, it is preferred to have identically designed transition profiles on opposite end faces, preferably longitudinal end faces. This enables cost-effective production and practical processing.

[0026] Generally, it is preferred that the building board according to the invention has two opposite longitudinal ends and two opposite short ends, with the preferably identically designed transition profiles preferably being formed only on the opposite longitudinal ends and / or not on the opposite short ends. This shape or design corresponds to conventional plasterboards that are laid and filled with filler along their lengthwise sides. In this respect, the building board according to the invention can be processed in exactly the same way as conventional plasterboards, but with the above-described aspect of significantly improved sustainability.

[0027] According to a further aspect of the invention, the above-described problem is also solved by a building board according to claim 10.

[0028] According to this further aspect of the present invention, which can also be implemented independently, at least one end face is covered at least in regions with cover layers that preferably abut one another frontally.

[0029] Accordingly, the end face is covered and / or overlapped at least partially, preferably continuously and / or in a single layer, by frontally abutting cover layers. As a result, the body is completely covered by self-contained cover layers and thus essentially uninterrupted. The butt-jointed connection of the cover layers eliminates the otherwise inevitable exposed edges of cover layers on the body. As a result, the building board designed according to the invention ensures smooth, high-quality surfaces and transitions and also meets high quality requirements in combination with the sustainability requirements already specified.

[0030] The butt-side connection of the facing layers can be made at any point on the front side, namely centrally or off-center, preferably off-center.

[0031] According to a further aspect of the invention, the above-described problem is also solved by a building board according to claim 11. Embodiments of this aspect of the invention are the subject of the relevant subclaims.

[0032] According to this further aspect of the present invention, which can also be implemented independently, the cover layers are spaced apart from one another at least in some areas on at least one end face, whereby the end face is thereby exposed at least in some areas.

[0033] This arrangement is particularly advantageous from a manufacturing perspective, as it is not necessary to maintain a precise dimension between the facing layers. Accordingly, tolerance ranges can exist between the facing layers, particularly in the form of undersize, since precise abutment of the coated facing layers is not required. In this respect, it is deliberately accepted that, in the coated state, at least a gap forms between the facing layers on the front side of the body, thereby exposing the body at least in sections.

[0034] The free space can be arranged at any point on the front side, namely centrally or off-center, preferably off-center.

[0035] Preferably, the width of the intermediate space formed between the spaced cover layers accounts for a proportion of the preferably reduced thickness of the body of 2% to 25%, preferably 5% to 20%.

[0036] Preferably, the intermediate space is filled in an airtight manner with a sealing material, preferably an elastic and / or fast-curing adhesive.

[0037] This preferably results in a body covered on both sides with appropriate cover layers, with the exposed ends of the cover layers sealed at the ends by the sealing material that fills the gap. The sealing of the face surfaces with the sealing material can be performed in a subsequent process step. This results in a high-quality building board with a consistently flat or smooth top surface, which is simple and cost-effective to manufacture.

[0038] In a method for producing the building board according to the invention, the transition profile is preferably formed on at least one end face, preferably on both opposite end faces, in particular longitudinal end faces, by mechanical processing, preferably by material-removing processing such as milling or the like. Since the body is made of a wood-based material, the corresponding profiling can be implemented easily and using common wood processing methods, in particular milling methods.

[0039] The body, which is provided with at least one transition profile, is then glued to the first continuous cover layer on the top side and to the second continuous cover layer on the bottom side, thereby covering it. The covering or bonding of the cover layers also takes place on the opposite end faces, especially the longitudinal end faces.

[0040] One or both cover layers preferably consist of a paper material, in particular with a basis weight of 120 g / m 2 up to 160 g / m 2 , preferably 140 g / m 2 and / or with a thickness of 0.1 mm to 0.3 mm, preferably 0.2 mm. In particular, the cover layers are made of cardboard material.

[0041] The arrangement of the facing layers on the front side can be such that the facing layers abut each other at least partially, preferably continuously. Further bonding or sealing steps to fix the facing layers to the front side are then preferably no longer necessary, and the building board, fully covered with the facing layers, is ready for use.

[0042] Alternatively, however, the sheathing can also be carried out in such a way that the cover layers are at least partially spaced from one another on at least one end face and the end face is thus at least partially exposed or not covered by the cover layers.

[0043] Due to this exposure, a further process step preferably follows, in which the space formed between the cover layers is filled with a sealing material, preferably an elastic and / or fast-curing adhesive, in particular in an airtight manner. This covers the front side on the one hand by the cover layers and seals it on the other hand with the sealing material.

[0044] It should be noted that a combination of abutting and spaced-apart cover layers is also possible, so that the cover layers abut one another frontally in some areas along the front side and are spaced from one another in some areas, forming an intermediate space that is preferably filled with the sealing material.

[0045] However, it is preferred that one end face, in particular the longitudinal end face, is either continuously covered with frontally abutting cover layers or that there is a gap on the end face that is preferably filled with a sealing material.

[0046] It should also be noted that an overlapping arrangement of the cover layers on at least one end face is also possible.

[0047] However, the overlapping arrangement of the cover layers can also occur on the top side or bottom side, preferably on the bottom side. For this purpose, the first cover layer is preferably applied to the top side and the end faces and additionally overlaps the bottom side and / or is additionally applied to the bottom side. The second cover layer overlaps the first cover layer, which is preferably applied in the edge region on the bottom side, wherein the second cover layer is preferably applied only to the bottom side and / or extends only to at least one end face, preferably both end faces, on the bottom side.

[0048] Alternatively, the second cover layer can also be applied to the underside and the end faces and additionally overlap the top side and / or additionally be applied to the underside as well. The first cover layer overlaps the second cover layer, which is preferably applied to the edge region on the top side, wherein the first cover layer is preferably applied only to the top side and / or extends only to at least one end face, preferably both end faces, on the top side.

[0049] The subject matter of the present invention will be explained in more detail below based on the description of a preferred embodiment, partly with reference to the drawings. The features described above and / or disclosed in the claims and / or in the following description can be combined with one another as needed, even if this is not expressly described in detail.

[0050] The drawing shows:

[0051] Fig. 1 shows a first partial cross-section of the building board according to the invention according to a first embodiment,

[0052] Fig. 2 shows a second, enlarged cross-section of the inventive

[0053] Building board according to a second embodiment and

[0054] Fig.3 shows a further enlarged cross section of the inventive

[0055] Building board according to a third embodiment.

[0056] Fig. 1 shows schematically a cross section of a preferred embodiment of a building board 1.

[0057] The building board 1 is shown in cross-section only in a section in the area of ​​one end face or longitudinal end face. However, it is understood that all of the following explanations are also to be understood with reference to the opposite, not shown end face, in particular the longitudinal end face, of the building board 1 shown, without this requiring explicit mention. The building board 1 is preferably elongated or has a greater length than width. In the application or installation state, the building board 1 is aligned vertically in the longitudinal direction and connected, in particular mounted, to a substructure or substrate (not shown).

[0058] The building board 1 has a body 5 having a top side 2, a bottom side 3 and opposite end sides 4 connecting them.

[0059] According to the invention, the body 5 is made of a wood material, in particular of a wood-based chip material or fiber material pressed with an adhesive.

[0060] A first continuous cover layer 6, preferably in the form of a paper layer, is provided on the upper side 2 and the end faces 4.

[0061] Accordingly, a second continuous cover layer 6', preferably a paper layer, is applied to the underside 3 and the end faces 4.

[0062] It is also essential that a transition profile 7 is formed on the upper side 2 on at least one end face 4, by means of which a thickness D of the body 5 on the end face 4 is reduced.

[0063] The thickness D is preferably a nominal thickness of the body 5. The thickness D or nominal thickness of the body 5 is preferably in the range from 20 mm to 30 mm, preferably in the range from 23 mm to 28 mm, in particular 25 mm.

[0064] In the illustrated and preferred embodiment, a thickness d at the end face 4 of the body 5 is reduced by 5% to 20%, preferably 10% to 15%, compared to the maximum (nominal) thickness D of the body 5. Alternatively or additionally, the body 5 has a thickness d at the end face 4 in the range of 18 mm to 28 mm, preferably in the range of 20 mm to 24 mm, in particular 22 mm.

[0065] In order to reduce the maximum thickness D to the thickness d on the end face 4, a transition profile 7 is formed on the upper side 2 adjacent to the end face 4.

[0066] The transition profile 7 serves in particular to form an empty volume which is filled with a filler or other filling compound when the building board 1 according to the invention is laid.

[0067] In the installation situation, a building board (not shown), preferably of identical design, with a preferably identically designed transition profile, abuts the end face 4 or the transition profile 7 of the building board 1 shown. The joint formed by the abutting building boards or transition profiles is then filled or filled, whereby the transition profile 7 designed according to the invention ensures particularly effective filling while avoiding cracking and / or unevenness or bulging while simultaneously ensuring a stable and resilient connection between the building boards.

[0068] Accordingly, the transition profile 7 has a depression 8 extending from the maximum (nominal) thickness D to the reduced thickness d. The depression 8 is formed here as a bevel and has a depth of 2 to 7 mm, preferably 3 to 5 mm and / or a width of 15 to 25 mm, preferably 18 to 22 mm.

[0069] Furthermore, it is provided that the transition profile 7 has at least one planar section 9 with a reduced thickness d adjacent to the end face 4 and, preferably, to the depression 8, preferably wherein the planar section 9 has a width of 15 to 20 mm, preferably 17 to 18 mm. The depression 8 is preferably a connecting section between the section of the body 5 with the thickness D on the one hand and the planar section 9 with the reduced thickness d on the other. At the transition to the planar section 9, the depression 8 is rounded, preferably with a radius of 50 mm to 70 mm, preferably 60 mm. Alternatively or additionally, the depression 8 is rounded at the transition of the body 5 with the thickness D, preferably with a radius of 20 mm to 40 mm, preferably 30 mm.

[0070] In the illustrated and preferred embodiment, the transition profile 7 has a rounded portion 10 that preferably transitions from the planar section 9 into the end face 4. The rounded portion 10 preferably has a radius in the range of 3 to 7 mm, preferably 5 mm.

[0071] It can also be seen in Fig. 1 that the front side 4 is covered by frontally abutting cover layers 6, 6'.

[0072] In the illustrated and preferred embodiment, the end face 4 of the body 5 is thus covered in a single layer in the longitudinal direction by the cover layers 6, 6', whereby gaps or intermediate regions between the abutting cover layers 6, 6' are at least substantially avoided. The abutting arrangement of the cover layers 6, 6' can be centered or off-center on the end face 4, i.e., ultimately at any desired location on the end face 4. An off-center arrangement of the abutting region of the cover layers 6, 6' is particularly preferred.

[0073] In the embodiment shown in Fig. 2, however, the cover layers 6, 6' are not arranged so as to touch one another and / or abut one another at the end face 4, but rather are spaced apart from one another, thus exposing the end face 4 at least in part. Exposing the end face 4 creates an intermediate space 11 whose width amounts to 2% to 25%, preferably 5% to 20%, in particular 5% to 10%, of the thickness D of the body 4.

[0074] Alternatively or additionally, the intermediate space 10 has a width in the range of 1 to 10 mm, preferably in the range of 3 to 5 mm.

[0075] In the illustrated and preferred embodiment, the intermediate space 11 is filled or sealed hermetically with a sealing material 12. A variety of materials can ultimately be considered as the sealing material 12, with an elastic and / or fast-curing adhesive, preferably a construction adhesive, being preferred.

[0076] In the embodiment shown in Fig. 3, the first cover layer 6 overlaps the front side 4 and extends to the underside 3.

[0077] In the illustrated and preferred embodiment, the first cover layer 6 is applied to the top side 2 and the end face 4 and additionally overlaps the end face 4 and is thus also applied to the underside 3. The first cover layer 6 is preferably applied only to an edge region of the underside 3.

[0078] The second cover layer 6' is applied overlappingly on the first cover layer 6, wherein the second cover layer 6' is preferably applied only on the underside 3 or not on the end face 4 and / or extends only up to at least one end face 4, preferably up to both end faces 4, on the underside 3.

[0079] The second or lower cover layer 6' preferably overlaps the first cover layer 6 such that the second cover layer 6' is particularly flush with the end face 4. In the overlapping area, the cover layers 6, 6' are connected to one another, in particular glued to one another. List of reference symbols: Building board 8 Recess of 7 Top side of 5 9 Planar section of 7 Bottom side of 5 10 Rounding of 7 End side of 5 11 Space of 5 Body 12 Sealing material of 11 Cover layer of 1 d Thickness ' Cover layer of 1 D Maximum (nominal) thickness Transition profile of 5

Claims

Patent claims:

1. Use of a building board (1) for butt-side laying and joint-side filling, wherein the building board (1) has a body (5) which - has a top side (2) and a bottom side (3) as well as opposite end faces (4) connecting them and - contains or consists of a wood material, wherein a first continuous cover layer (6) is applied to the upper side (2) and the end faces (4) and a second continuous cover layer (6') is applied to the underside (3) and the end faces (4), and wherein a transition profile (7) is formed on the upper side (2) on at least one end face (4), by means of which transition profile the thickness (d) of the body (5) is reduced on the respective end face (4).

2. Use according to claim 1, wherein the building board (1) is placed on the transition profile (7) with a preferably identically designed building board with a preferably identically designed transition profile on the end face and the joint formed by the abutting transition profiles of the building boards is filled.

3. Use according to claim 1 or 2, wherein the building board (1) is designed according to one of claims 4 to 13.

4. Building plate (1 ), with a body (5), the - has an upper side (2) and a lower side (3) as well as opposite end faces (4) connecting them, in particular longitudinal end faces, and - contains or consists of a wood material, in particular a wood-based chip material or fiber material pressed with an adhesive, wherein on the upper side (2) and the end faces (4) a first continuous cover layer (6), preferably a paper layer, and on the underside (3) and the A second continuous cover layer (6'), preferably a paper layer, is applied to the end faces (4), and a transition profile (7) is formed on the upper side (2) on at least one end face (4), by means of which the thickness (d) of the body (5) is reduced at the respective end face (4).

5. Building board according to claim 4, wherein the thickness (d) at the respective end face (4) is reduced by 5% to 20%, preferably 10% to 15%, compared to the maximum thickness (D) of the body (5).

6. Building board according to claim 4 or 5, wherein the transition profile (7) has at least one depression (8), preferably a bevel, extending from the maximum thickness (D) to the reduced thickness (d), in particular wherein the depression (8) has a depth of 2 mm to 7 mm, preferably 3 mm to 5 mm and / or a width of 15 mm to 25 mm, preferably 18 mm to 22 mm.

7. Building board according to one of the preceding claims, wherein the transition profile (7) has at least one planar section (9) with a reduced thickness (d) adjacent to the end face (4) and, preferably, to the depression (8), preferably wherein the planar section (9) has a width of 15 mm to 20 mm, preferably 17 mm to 18 mm.

8. Building board according to one of the preceding claims, wherein the transition profile (7) has a rounding (10) which preferably transitions from the planar section (9) into the end face (4), preferably wherein the rounding (10) has a radius of 3 mm to 7 mm.

9. Building board according to one of the preceding claims, wherein preferably identically designed transition profiles (7) are provided on opposite end faces (4), preferably longitudinal end faces.

10. Building plate (1 ), with a body (5), the - has an upper side (2) and a lower side (3) as well as opposite end faces (4) connecting them, in particular longitudinal end faces, and - contains or consists of a wood material, in particular a wood-based chip material or fiber material pressed with an adhesive, wherein a first continuous cover layer (6), preferably a paper layer, is applied to the upper side (2) and the end faces (4), and a second continuous cover layer (6'), preferably a paper layer, is applied to the underside (3) and the end faces (4), in particular according to one of the preceding claims, wherein at least one end face (4) is covered with cover layers (6, 6') which abut one another frontally at least in some regions, preferably continuously.

11. Building plate (1 ), with a body (5), the - has an upper side (2) and a lower side (3) as well as opposite end faces (4) connecting them, in particular longitudinal end faces, and - contains or consists of a wood material, in particular a wood-based chip material or fiber material pressed with an adhesive, wherein a first continuous cover layer (6) is applied to the upper side (3) and the end faces (4) and a second continuous cover layer (6') is applied to the underside (3) and the end faces (4), in particular according to one of the preceding claims, wherein the cover layers (6, 6') are spaced from one another at least in regions, preferably continuously, on at least one end face (4) and the end face (4) is thereby exposed at least in regions.

12. Building board according to claim 11, wherein the width of an intermediate space (11) formed between the spaced cover layers (6, 6') accounts for a proportion of the preferably reduced thickness (d) of the body (5) of 2% to 25%, preferably 5% to 20%, in particular 5% to 10%.

13. Building board according to claim 12, wherein the intermediate space (11) is preferably filled airtight with a sealing material (12), preferably an elastic and / or fast-curing adhesive (12).

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