DE8902274U1 - Wall element for the construction of natural wood buildings - Google Patents

Description

Description

j The invention relates to a wall element for the construction of natural wood buildings.

Natural wood buildings are generally used here to describe buildings whose visible walls are formed by the natural surface of trees. These can be rooms that are closed on all sides, but can also be only partially closed, such as pavilions, shelters, etc. In the simplest case, such buildings only comprise a single room.

The best-known example of such natural wood buildings is the log cabin, which is particularly common in Nordic countries. It is characterized by a natural, almost rustic construction method, in which solid round logs are stacked horizontally on top of each other in the total length of the respective house or building wall (= width or depth of the house or building) and connected to each other at their ends, in particular by mortising. In this construction method, only material that grows well and is approximately the same thickness can be used. It must therefore be carefully selected from the mass of felled wood. It is therefore correspondingly expensive.

A further disadvantage is that the full tree trunks, which are often very long, have a considerable weight, so that they can usually only be processed with lifting gear. Finally, it is usually necessary to use the ZtUS Blockhsüsbsu required ^tT ts ^r i 3 ^aiim EtM ^mmii * ⁿ **■* -

a sawmill. Due to the ^high cost of procuring the material,

Because of its transport and processing, the construction of a log house ultimately turns out to be quite &Idigr;- expensive.

% This is where the invention comes in. It aims to

Propose a wall element for the construction of natural wood buildings, in which shorter tree trunks of lower weight and of different thicknesses can be used. At the same time, the existing structural advantages as well as the optical and aesthetic appeal of natural wood should be preserved.

15

This task is solved according to the proposal of the

Invention in that longitudinal sections of round logs cut to room height and straightened laterally are vertically aligned and butted laterally _to form a visible layer, whereby they are permanently connected to a counter layer made of wood covering the joints.

As can be seen, the wall element mentioned is the result of a fundamentally changed construction method. jü solid material is now replaced by a composite material, where a certain thickness of the round logs as a whole is no longer important, but only of the corresponding longitudinal sections. The latter can, however, be obtained from edge logs of different thicknesses, whereby only intermediate pieces (planks) of different thicknesses are produced, which can generally be reused. This makes it possible to use even low-class _, i.e. cheaper wood. Since

the aforementioned longitudinal sections have already been cut with conventional hand tools (namely chainsaws, such as those used for cutting

cn »uii ijwiijcii .im uiiisnii 3j.uu./ &igr;

If you have the logs harvested directly from the sawmill, you no longer need to transport the full logs to a sawmill in a complicated and expensive way.

Instead of the full width or depth as a length measurement, only the much lower room height is now taken into account. This means a significant reduction in the weight of the components that have to be handled during assembly. As a result, a construction method is opened up that allows craftsmen to build the desired natural wood structures without any additional help if necessary. Finally, the construction (.ilestandte i Ie) and assembly of the proposed wall element are so clear and simple that its implementation can now even be a matter for do-it-yourselfers.

The proposed vertical arrangement of the longitudinal sections also achieves another, by no means insignificant, advantage. In log houses, for example, a noticeable shrinkage of the round logs in their diameter must be taken into account .

From log to log, the amounts are small, but they add up to 15 cm or more for normal room heights. This means that with conventional log house construction, the ceiling, roof, etc. can be expected to sink by up to 15 cm or more as the wood dries out. This can be quite disruptive and sometimes problematic compared to other solid components, such as chimneys, etc., which are not subject to such shrinkage.

While significant dimensional changes are to be expected in the radial direction for round timbers, no significant shrinkage is to be observed in the longitudinal direction. The invention now makes use of this fact, so that the undesirable sinking of the walls with the

resting ceilings, the roof, etc.

The proposed wall structure is not only suitable for external walls, but also for internal and partition walls. This results in practically the same advantages.

The counter layer is also expediently made up of room-high lengths and laterally horizontal longitudinal sections of round logs which are vertically aligned and butted together laterally. The individual components (longitudinal sections) of the counter layer are offset laterally from those of the visible layer in order to cover their joints. In this embodiment, the counter layer also takes on a visual and aesthetic function by simultaneously forming another visible layer.

In a further development of the inventive concept, boards, planks or similar running parallel to one another are attached behind the visible layer as additional components of the counter layer. This is a type of sandwich construction in which the individual longitudinal sections of the visible layer and counter layer no longer necessarily have to be arranged laterally offset from one another.

The boards, planks or similar are expediently arranged at a distance from one another. This embodiment can be used to save material, create insulation spaces, set up ventilation ducts and/or provide installation slots.

It is advantageous if adjacent boards, planks or similar are shortened slightly alternately at the head and foot of the wall element. In this design, the aforementioned gaps are connected to each other in a meandering shape, which further serves the purposes already mentioned,

especially rear ventilation, can be exploited,

The individual components are expediently nailed or screwed together to achieve a permanent connection. This is a widely used connection technique which also proves to be convenient and sufficient for the purposes of the invention.

Further details and advantages of the invention are described below with reference to the drawing for various embodiments. In them:

Fig. 1a - c two longitudinal sections, which are simply

Halving a round log of suitable

diameter were obtained, in perspective view,

Fig. 2 a wall element according to the invention with visible layer and a counter layer of comparable structure

construction in cross section,

Fig. 3 another wall element (in sandwich construction) in cross section, 25

Fig. 4 - another wall element in cross section,

Fig. 5 the wall element of Fig. 4 in longitudinal section

along the line V - V, 30

Fig. 6 a wall element according to the invention in connection with adjoining building elements in a multi-storey building in a schematic representation and

Fig. 7 a wall element according to the invention in connection with adjoining building elements in a flat building without an upper floor; also in a schematic representation.

According to Fig. la, two longitudinal sections 2 of the desired thickness are obtained from a round log 1 simply by halving the round log 1. However, this requires a suitable diameter for the round log 1. With thicker round logs, an intermediate piece is also created in the middle, which is later used as a plank.

..&ldquor;.,.1 &mdash; 4- ..&ldquor;_.!_&mdash; t- &mdash; __ r- uo .> ni_ -«1- &igr;<_

&eegr;&ugr;&igr;&igr;&igr;&igr;&ugr; L nu I MUIl IV Cl Jill· It V !!ta M UtJII &Ggr; 1(J t \ U UIlU IL

In a second processing step, the longitudinal sections 2 are straightened laterally, namely by two parallel cuts, which are made in such a way that a flat contact surface of a certain height, for example between 1 and 6 cm, is created on each side.

According to Fig. 2, such longitudinal sections 2 are vertically aligned and butted against each other laterally. They form a visible layer 3. The individual longitudinal sections 2 are permanently connected to a counter layer 4, namely nailed. The counter layer 4 covers the joints of the longitudinal sections 2 of the visible layer 3. As can be seen, the counter layer 4 here also consists of longitudinal sections 2 which are laterally offset from the longitudinal sections 2 of the visible layer 3. This allows the joints to be covered and results in a stable composite structure. Even if shrinkage and gaps form at the joints as a result of natural drying, this does not cause any significant problems, as no continuous gaps are created and these can easily be closed again with suitable filling material if necessary. The longitudinal sections 2 are room-high, which, depending on the purpose,

of the room can mean a different height. 35

As can be seen from Fig. 5, the inventive concept can also be implemented in a so-called sandwich construction

■ The

&bull; I &igr; I

&bull;· »»«1 ft* ··

realize in which boards (planks) 5 are inserted between the longitudinal sections 2 of the visible layer 3 and the longitudinal sections 2 of the counter layer 1. Together with the longitudinal sections 2 of the counter layer 4, they cover the joints of the longitudinal sections 2 of the visible layer 3. In this case, it is no longer necessary for the longitudinal sections 2 on both sides to be arranged laterally offset from one another; rather, in this case, the longitudinal sections 2 are advantageously aligned with one another, whereby the boards 5 can cover the joints on both sides at the same time (see Fig. 4). The individual components can be connected to one another in layers (see Fig. 3 in particular) or continuously (see Fig. 4), i.e. nailed here.

As can be seen from the figures, the boards 5 stand upright and run parallel to each other, so that together with the longitudinal sections 2 of the visible layer 3 and counter layer 4 they form gaps 6. These can also be connected to each other, for example by alternately shortening the boards 5 at the head and foot of the wall element according to Fig. 5. This results in a meandering passage between the visible layer 3 and the counter layer 4, as shown by the arrows 7. This can be used in particular for ventilation purposes, for carrying installation material and much more.

The invention proposes a wall element that can be made sufficiently strong for different requirements, in particular for a load-bearing function. Additional insulation is generally unnecessary. The costs, especially for DIY construction, are extremely low.

- 10 -

The construction of a house generally begins with half-logs being set up at the statically important points and anchored to a foundation. This is followed by horizontal beams as the lower abutment 8 and upper abutment 9 for the wall element described above, as shown in Figs. 6 and 7. In addition, a sheet of foil 10 is provided behind the visible layer 3 as a barrier layer. The rest of the structure is as follows.

The foundation 11 is followed by floor insulation 12 and floor covering 13. Above the upper abutment 9 are roof rafters 14 and ceiling beams 15, the latter being covered from below with a cladding 16 and from above with a floor covering 17. In between there is insulation material. If the upper abutment 9 is to take on a static function, for example to support the roof rafters 14, as shown in the example in Fig., it must be dimensioned accordingly stronger. This can result in a slightly different upper finish for the wall element, namely such that the upper abutment 9 now runs in the full width of the counter layer 4 including the boards 5.

- 11 -

Reference oak list

1 Round log 2 Longitudinal section 3 Visibility 4 Counterposition 5 board 6 Space 7 Arrow 8th Abutment 9 Abutment 10 Film web 11 foundation 12 Floor insulation 1y Flooring 14 Roof rafters 15 Ceiling beams 16 Cladding 17 Flooring

Claims (6)

PA Dft. GROMMES MchUtr. 14-16 D-5400 KOBLENZ West-Germany Roland Kühne1 Alter Garten 9 5419 Hahn 5 Wall element for the construction of natural wood buildings Protection claims 1. Wall element for the construction of natural wood buildings, characterized in that longitudinal sections f 2 ) of round logs ( 1 ) cut to room height and straightened laterally to form a visible layer ( 3 ) are vertically aligned and butted against one another laterally, whereby they are permanently connected to a wooden counter layer ( 4 ) covering the joint. 2. Wall element according to claim 1, aacharacterized in that the counter layer (4) also consists of room-high and laterally straightened longitudinal sections (2) of round logs (1), which are vertically aligned -Z- and are adjacent to each other sideways. 3. Wall element according to claim 2, characterized in that behind the visible layer (3) there are boards (5), planks or the like running parallel to one another as further components of the counter layer (4). 4. Wall element according to claim 3, characterized in characterized in that the boards (5), planks or the like are arranged at a distance from one another. 5. Wall element according to claim 4, characterized in that adjacent "rettcr ( ^r > ), planks or similar are alternately slightly shortened at the head and foot of the wall element. 6. Wall element according to one of claims 1 to 3, characterized in that the individual components (2, 5) are nailed or screwed together to achieve a permanent connection.