EP2672054A1 - Component with dry or wet room properties - Google Patents

Abstract

The component (1) has a planar base that includes an inner element (2). A stabilizer includes side profiles (3) provided on three sides of inner element. The inner element and stabilizer are made of wood or wood based material. A solid wooden frame is circumferentially provided on end faces of base. A surface coating (8) selected among clear coat, silicones, fluoroelastomer, and fluorine silicone is completely provided on the lower end surface of solid wood frame. An independent claim is included for a device for closing/locking of opening.

Description

The invention relates to a component with moist or wet room properties, in particular a panel or a door leaf, comprising a planar base body comprising an inner member and a stabilizer formed from profiles and enclosing the inner member on at least three sides, wherein the inner member and the stabilizer made of wood and / or a wood-based material are formed and wherein the base body is provided at its end faces circumferentially with a solid wood frame. The invention further relates to a device for closing an opening and a panel comprising or consisting of a component of the aforementioned type.

Such components are well known, for example, as composite panels for doors and windows of the prior art. Such door leaves usually have a core of chipboard or other wood materials, which may optionally include additional honeycomb inserts for weight reduction. This core is often provided with a circumferential wooden profile, which consists mostly of solid wood. This composite construction is usually covered on both flat sides with a high-density fiberboard (HDF wood board), wherein the HDF board may be provided with a surface finish, such as plywood, laminate or with a paint job. The disadvantage of such a construction is that the peripherally formed solid wood edges are prone to the ingress of moisture. The moisture can get into the core, from where it can only evaporate poorly, since the mounted on the flat sides of the core covers permit water vapor diffusion only to a very small extent. In addition, the surrounding wooden profiles do not always have the desired degree Shock insensitivity, which is also detrimental to the burglary resistance.

To overcome some of these aforementioned disadvantages is in the DE 195 05 222 A1 proposed to provide the wood profiles of a door or window sash on the list with a Metallbeplattung. In this way, penetration of moisture into the composite structure from the weathered side should be avoided. The problem here, however, is that draining from the surfaces of running water drips at the lower edge and stops there in part. As a result, water can penetrate from below into the layer structure, as a result of which it can swell or even lead to delamination of the layers.

From the DE 20 2010 012 755 a composite panel for a door leaf, a window leaf or the like is known. The composite panel has a core made of a wood or wood-based panel, wherein the core is provided on at least one of its peripheral edges with a wooden profile. The composite panel is also characterized by the fact that the wood profile is at least partially covered with a covering profile on its edge facing away from the core. Although this construction reduces the risk of water penetration, this composite panel has room for improvement in wet and wet applications.

The object of the present invention is to modify a component of the type mentioned in the introduction, in particular a composite panel, in such a way that it is less susceptible to the ingress of moisture, so that it has moist or wet room properties.

This object is achieved by a component with wet or wet room properties, in particular a panel or a door leaf, comprising a planar base body comprising an inner member and a stabilizer formed from profiles and enclosing the inner member on at least three sides, wherein the inner member and the stabilizer are formed of wood and / or a wood material and wherein the base body is provided at its end faces circumferentially with a solid wood frame, wherein the component is characterized in that at least the lower end face of the Solid wood frame is substantially completely provided with a surface coating.

The present invention is based on the finding that by using a surface coating on the lower end face of the component, the penetration of water can be almost completely prevented, even if the component is in direct contact with water for a relatively long period of time. In other words, the device according to the invention has wet or wet room properties. The terms wet or wet room properties are standardized.

The solution according to the invention has the advantage that the component can be constructed almost completely of wood or wood materials and, for example, no plastic profiles must be installed in order to achieve the moisture resistance. For this reason, the components of the invention are also suitable for fire protection tasks. Thus, the device according to the invention can be used for example as a fixed fire protection element or in the form of a fire door, these uses are not meant to be exhaustive.

In the component according to the invention it is provided that the inner element is bordered at least on three sides by profiles which form the stabilizer. The stabilizer serves to increase the torsional stiffness of the device. In this case, the vertical end faces and the upper horizontal end face of the inner element are preferably provided with the aforementioned profiles. However, the stabilizer may also be formed by a circumferential profile frame. For the stabilizer especially profiles made of veneer plywood are used.

The inner element of the device according to the invention can be constructed in one or more layers. In multilayer construction, the individual layers can be attached to each other by methods known per se, such as by gluing, pegging, screwing, nailing or by combinations of these methods. As materials for the situation or layers come in principle all wood or wood-based materials in question, from which can be made plates, such as Materials based on solid wood, veneer materials, chipboard materials or fiber materials. Preferably, the panels are made of solid wood, plywood, wood chip and / or wood fiber materials.

Plywoods are, for example, cross laminated timber, glued laminated timber, composite plywood, solid wood elements of cross laminated boards, veneer plywood, veneer plywood, veneer strip, bent plywood or synthetic resin plywood.

As chipboard materials are, for example flat pressed plates (FPY), commonly referred to as chipboard, extruded plates, coarse chipboard, also called OSB board, or chipboard wood (LSL) are used.

Suitable wood fiber materials include wood fiber insulation boards (HFD) (also porous fiber board and "soft board" (SB)), medium hardboard (MB), hardboard (HB or HFH), extra hardboard (HFE) or high density fibreboard (HDF).

Although in the context of the present invention, the wood profiles used for the stabilizer may consist of wood-based materials, wood profiles made of solid wood are preferably used. Particularly suitable for the inner element is a core of a flat press plate which is glued on both sides with high-density fiberboard.

For bonding as well as all other bonds in the context of the present invention, all known for the connection of (solid) wood or wood materials with each other adhesives can be used. These are, for example, adhesives based on polyvinyl acetate, one- or two-component polyurethane or epoxy adhesives, silicone- or silane-based adhesives, condensation resins such as formaldehyde-phenol resins; Hotmelt adhesives based on polyamides, polyolefins, in particular polyethylene and polypropylene, amorphous polyalphaolefins, ethylene-vinyl acetate copolymers, polyester elastomers, polyurethane elastomers, copolyamide elastomers and vinylpyrrolidone / vinyl acetate copolymers. Also glues such as glutin glue, casein glue, urea-formaldehyde resin glue, phenol-formaldehyde resin glue, resorcinol formaldehyde resin glue, low-formaldehyde Polycondensation size, formaldehyde-free dispersion size or PU size can be used to name a few. In addition, mixtures of all the aforementioned systems can also be used.

The wood profiles used in the present invention may have any cross section. Preferably, wood profiles are used with square or Reckeckigem cross-section or rebated wood profiles.

As far as the width of the wood profile is concerned, this can be chosen to correspond to that of the core. In this way, the flat sides of the core are continued by the wood profile, which facilitates an occupancy of the entire area, for example with a veneer wood-coated HDF board.

In a further development of the component according to the invention, the solid wood frame is constructed from frame profiles and connected to the base body via a tongue and groove connection. This allows a particularly secure connection of these components. This is particularly advantageous if the device according to the invention should also fulfill fire protection functions. In the event of fire, the tongue-and-groove connection prevents the main body from falling out of the solid wood frame if a bond between these components fails due to the high temperatures of the fire.

To produce the tongue and groove connection, according to a first embodiment, the frame profiles of the solid wood frame may have a U-shaped cross section, whereby a base body facing groove is formed, in which engages a separately inserted or formed on the outer abutting edges of the body spring.

Alternatively, the tongue and groove connection can also be generated in that the base body is provided at its outer end faces with a circumferential groove into which a separately inserted or formed on the inside of the solid wood frame spring engages.

The combination of inner element, stabilizer and solid wood frame can be done in any way that appears appropriate to the person skilled in the art. Preferably, the inner element, the stabilizer and / or the solid wood frame are glued together, in particular glued. For this purpose, for example, a wood glue, such as white glue and the like can be used.

In the context of the present invention, furthermore, the base body can be provided on the outside with a peripheral hardwood edge. The edge band is then attached to the end faces of the profiles of the stabilizer or on the end face where such a profile is not located on the inner element.

In addition to the edging, the solid wood frame is preferably made of hardwood. As hardwoods for the solid wood frame or the edging can be used in principle all familiar to the expert hardwoods, such as beech, oak, ash, pine or redwood such as Sapelli, mahogany to name a few.

According to a preferred embodiment of the device according to the invention, the lateral and / or the upper end face of the solid wood frame are at least partially provided with the surface coating, in particular all faces of the solid wood frame are provided with a surface coating. If the lateral end surfaces are only partially coated with the surface coating, then this is preferably applied in the lower area, directly adjacent to the lower edge, so that a continuous surface coating is formed, starting from the lower end face of the component on both sides of the component to a certain height. As a result, the area of the component which is most frequently confronted with stagnant moisture is protected particularly effectively against penetrating water.

In the context of the present invention, the component can also be provided substantially completely with the surface coating. This is particularly useful when the device is no other moisture-resistant surface has, such as an HDF plate (high-density fiberboard).

The surface coating can be produced either in a coating step, or preferably by multiple coating with a coating agent. In the latter case, a drying step can be inserted between the individual coating steps.

If the coating is applied in several steps, it is advantageous to use the coating agent in decreasing dilution stages, wherein in particular in the first coating step, the coating agent is used with a 30 to 70% dilution, in particular with a 40 to 60% dilution.

In the one or more subsequent coating steps, the coating composition is then preferably used in a 0 to 20% dilution, in particular with a 5 to 15% dilution. This technique gives a very waterproof and well-adherent surface coating. More preferably, the coating agent is applied in the first step with 50% dilution and in two subsequent steps in 10% dilution.

The application of the coating composition can in principle be carried out in any manner known to those skilled in the art, such as, for example, brushing, spraying, knife coating, brushing, dipping and the like.

As regards the coating agent used for the surface coating, this may be selected from paints, in particular clearcoats, silicones, fluoroelastomers, fluorosilicones and the like.

According to a particularly preferred embodiment of the device according to the invention the base body and the solid wood frame are provided on both sides with a cover layer of a laminate which extends to the outer end faces of the solid wood frame and flush with these, wherein the cover layer is in particular glued, preferably over the entire surface. Of the Laminate may be, for example, a melamine resin sheet such as a Resopal® sheet or a high pressure laminate (HPL) sheet.

In addition to an increase in the water resistance of the component, the cover layer can also be used for optical embellishment, in that the cover layers have, for example, a corresponding coloring or also have a wood pattern. The thickness of the cover layer can be adjusted as desired and is for example in the range of 0.2 to 10 mm, in particular from 0.3 to 2 mm, preferably from 0.5 to 1 mm.

In the presence of a cover layer, moreover, the surface coating is applied to the lower end face of the solid wood frame, in particular in such a way that the surface coating also extends over the lower end faces of the cover layers applied on both sides. In this way it is prevented that water can penetrate between the cover layers and the solid wood frame.

If water-resistant cover layers are used, for example melamine resin boards, it is otherwise possible to dispense with a full surface application of the surface coating, since the main surfaces of the component are already covered sufficiently watertight by the cover layers.

In a further advantageous embodiment of the device according to the invention this has one or more recesses, which are provided on their inner surfaces with a seal which is in particular selected from paints, in particular clearcoats, silicones, fluoroelastomers, fluorosilicones, silicates or combinations thereof. This prevents water from penetrating into the interior of the component via the recesses. The aforementioned recesses serve, for example, for inserting therein a lock case, a hinge, a static holding device, a transparent or translucent element, and / or the like. Optionally, a seal for additional sealing of the insert can be used.

As a transparent or translucent element, in particular a glass pane can be used. The glass pane can be normal window glass, toughened safety glass or insulating glazings thereof. It is also possible to insert fire protection panes into the recess, such as fire-resistant glazings made of heat-resistant tempered safety glass such as Duran® or Pyran® glass or an intumescent fire-resistant glazing.

Intumescent fire-resistant glazings or fire-resistant panes consist of several layers of glass with one or more functional layers of intumescent material arranged between the glass layers. Further intermediate layers can serve, for example, the thermal insulation or sound insulation. The intumescent layers are normally transparent, but foam when exposed to heat and thus become opaque. As a result, the permeability of the fire protection pane against thermal radiation is drastically reduced. The foaming is caused by the elimination or evaporation of gaseous constituents of the intumescent material, such as water, which in addition to the turbidity additional cooling of the disc and the thus in direct contact components is achieved. In addition, the increase in volume associated with foaming causes the intumescent agent to emerge at the abutting edges of the fire protection panes and thus additionally seal the joints to adjacent components. The intumescent layer may, for example, comprise a mixture of glycerol and water glass.

The invention further relates to a device for closing an opening, wherein the device comprises a component according to the invention or consists thereof.

Another object of the present invention relates to a wall panels, which comprises a component according to the invention or consists thereof.

In a further preferred manner, the component, the device for closing an opening or the wall panels have fire protection properties. In other words, such elements are suitable to prevent the passage of fire and smoke from one room to another.

Fig. 1

ein erfindungsgemäßes Bauelement in der Draufsicht;

Fig. 2

das Bauelement gemäß Fig. 1 in seitlicher Schnittdarstellung sowie

Fig. 3

einen Vertikalschnitt durch das Bauelement gemäß Fig. 1.

The invention will be described below with reference to the FIGS. 1 to 3 described in more detail. Show

Fig. 1

an inventive device in plan view;

Fig. 2

the device according to Fig. 1 in lateral sectional view as well

Fig. 3

a vertical section through the device according to Fig. 1 ,

In Fig. 1 an inventive element 1 with wet room properties is shown in plan view. The component 1 consists of a flat base body which comprises an inner element 2 and a stabilizer formed from profiles 3 and enclosing the inner element 2 on three sides. The profiles 3 are arranged on both vertical longitudinal sides and on the upper edge of the inner element 2 and glued thereto. The stabilizer is made of profiles 3 made of veneer plywood. The main body further comprises a peripheral edge 4 of hardwood, in this case of beech.

The basic element formed from inner element 2, stabilizer and edge band 4 is circumferentially provided at its end faces with a solid wood frame, which is composed of frame profiles 5 made of hardwood, in this case beech.

As in the side and vertical sectional view according to FIGS. 2 and 3 can be seen, the frame profiles 5 have a U-shaped cross section, whereby a groove facing the base body is formed, in which engages a formed on the outer faces of the body spring.

The inner element 2 consists of a core of a flat press plate which is provided on both sides with high-density fiberboard 6. The high-density fibreboard 6 extend to the outer end face of the peripheral edge 4, so cover completely the profiles 3 of the stabilizer. In addition, a cover layer 7 made of a laminate, in this case one Melaminharzplatte, glued over the entire surface, wherein the cover layer 7 covers both the base body as from the lateral surfaces of the frame sections 5 of the solid wood frame and flush with its end faces.

All outside faces of the solid wood frame are completely provided with a surface coating 8. The surface coating 8 consists in a clearcoat layer, which is applied in three painting steps. Here, in a first step, a commercially available clearcoat is diluted to 50% with a suitable solvent, applied and dried. In two subsequent steps, the same paint is applied at a 10% dilution with a drying step after each paint step.

LIST OF REFERENCE NUMBERS

1

module

2

inner element

3

profile

4

edge band

5

frame profile

6

high density fiberboard

7

topcoat

8th

surface coating

Claims (19)

Component (1) with moist or wet room properties, in particular a panel or a door leaf, comprising a planar base body comprising an inner element (2) and a stabilizer formed of profiles (3) and enclosing the inner element (2) on at least three sides, wherein the inner element (2) and the stabilizer made of wood and / or a wood material are formed and wherein the base body is provided at its end faces circumferentially with a solid wood frame,
characterized,
that at least the lower end face of the solid wood frame is substantially completely provided with a surface coating (8). Component according to Claim 1,
characterized,
in that the solid wood frame is constructed from frame profiles (5) and connected to the base body via a tongue and groove connection. Component according to Claim 2,
characterized,
in that the frame profiles (5) have a U-shaped cross-section, whereby a groove facing the main body is formed, in which engages an inserted or formed on the outer end faces of the main body spring. Component according to Claim 2,
characterized,
that the base body is provided at its outer end faces with a circumferential groove, in which engages an inserted or formed on the inside of the solid wood frame spring. Component according to one of the preceding claims,
characterized,
that the inner element (2), the stabilizer and / or the solid wood frame are glued together, in particular glued. Component according to one of the preceding claims,
characterized,
that the main body is provided on the outside with a peripheral edge band (4) made of hardwood. Component according to one of the preceding claims,
characterized,
that the lateral and / or the upper end face of the solid wood frame are at least partly provided with the surface coating (8), wherein in particular all end faces of the solid wood frame are provided with a surface coating (8). Component according to one of the preceding claims,
characterized,
that the component is substantially completely provided with the surface coating (8). Component according to one of the preceding claims,
characterized,
that the surface coating (8) is produced by multiple coating with a coating agent, wherein a drying step is inserted between the individual coating steps, in particular. Component according to Claim 9,
characterized,
in that the coating composition is used in decreasing dilution stages, the coating agent in particular being used in the first coating step with a 30 to 70% dilution, in particular with a 40 to 60% dilution. Component according to Claim 10,
characterized,
in that the coating composition is used at the subsequent coating step or steps with a 0 to 20% dilution, in particular with a 5 to 15% dilution. Component according to one of the preceding claims,
characterized,
that for the surface coating of coating material of (8) is selected from coatings, in particular varnishes, silicones, fluoroelastomers, and / or fluorosilicones. Component according to one of the preceding claims,
characterized,
that the base body and the solid wooden frame on both sides with a cover layer (7) are made of a laminate, which extends up to the outer end faces of the hardwood frame and is flush therewith, wherein the cover layer (7) is in particular glued, preferably over the entire surface. Component according to Claim 13,
characterized,
that the laminate is selected from a melamine resin plate or a plate HPL. Component according to one of the preceding claims,
characterized,
that the component has one or more recesses which are provided on their inside with a seal which is in particular selected from varnishes, in particular clearcoats, silicones, fluoroelastomers, fluorosilicones, silicates or combinations thereof. Component according to Claim 15,
characterized,
that in the recesses a lock case, a hinge, a static holding device, a transparent and / or translucent element is used and optionally sealed with a seal. Component according to one of the preceding claims,
characterized,
that the component has fire protection properties. Device for closing an opening,
characterized,
that the device comprises a component according to one of claims 1 to 17 or is composed thereof. Wall panels,
characterized,
in that the wall panel comprises or consists of a component according to one of claims 1 to 17.

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