FI130353B - Timber wall for buildings and method for forming a timber wall - Google Patents

Abstract

The invention relates to a log (10) for buildings, which log (10) comprises - frame (12) of wood cut to modular dimensions, outer surface (14) and inner surface (16), lower side (20) and upper side (22), opposite short sides (24) - at least two oblong slots (18) arranged on the upper side (22) or the lower side (20) or both, for mounting a seal (28), - at least two end slots (26) for seals (28) arranged in each said short side (24) arranged to go between said lower side (20) and upper side (22), - bearing surfaces (30) arranged both on the lower side (20) and on the upper side (22) between the elongated slots (18) for receiving vertical loads. The invention also relates to a corresponding log wall and a method for creating a log wall.

Description

LOG WALL AND METHOD FOR FORMING A LOG WALL

The subject of the invention is a log wall for buildings, in which the log wall includes several logs, of which each log includes - a wooden frame cut to modular dimensions, - the outer side surface and the inner side surface formed in relation to the frame opposite each other, - the lower surface and the upper surface formed in relation to the frame opposite each other, - the opposite ends formed in relation to each other opposite to the frame, - at least two longitudinal beams fitted to the upper surface or lower surface in the direction between the outer side surface and the inner side surface at a distance from each other and adapted to run between the ends for the installation of a seal in the direction of the log, - bearing surfaces fitted to both the lower surface and the upper surface on the isthmus between the longitudinal beams to receive vertical loads, and to the log wall includes in addition to the logs - at least two gaskets fitted to both the lower surface and the upper surface in the direction between the outer side surface and the inner side surface of each log, spaced apart and fitted not to pass between the said ends, which said seals

O 25 are each fitted to a longitudinal frame. 5 The subject of the invention is also a method for forming a log wall. x a o Log is one of the oldest building materials used, 3 30 which has been used for hundreds of years in the walls of buildings. Traditionally, the logs are the length of the entire wall, i.e. several meters

N long uniform wooden structures. A log made of solid wood, i.e. made from one tree, lives over time and dries, causing cracks to appear as a result of drying. These weaken the appearance, durability and insulation of the log. For this reason, the logs used in log buildings today are mainly glulam logs made from already dried boards by gluing, in which cracking does not occur.

However, the problem with glulam logs is their laborious production, as the solid wood log is first sawn into boards, dried, assembled by gluing into a glulam log and possibly sawed into shape. Various adhesives are used in gluing, which can be problematic from an environmental point of view. The problem is also the multi-dimensional logs required by different log buildings, which means that the logs must be made to measure for each building. In addition, assembling full-length log buildings requires either a lot of labor or separate lifting equipment when the logs weigh tens, even hundreds of kilograms.

The prior art publication US 8,028,480 B2 shows a wall structure assembled from log modules. The idea of the publication is to use logs cut to the chosen module size, from which a log wall is assembled. The logs are connected to each other vertically with screws and sealed with gaskets both inside and outside. In this way, the easy manufacturability of the log wall is achieved, not because the same log module can be used in all log walls.

O 25 in it. In addition, assembling the log wall is easier when using 5 log modules that are substantially shorter than the entire length of the log wall. z Publication DE 202010010158 U presents a building kit for building a wooden house > using solid wood logs. Building set 3 30 includes at least one first and at least one second = prefabricated solid wood wall module, each consisting of

N of several solid wood logs laid horizontally on top of each other, attached to each other by means of vertical screws.

From the publication FI 115658 B, a method is known for making a non-sag wall structure from logs, where the grain of the wood is in the lengthwise direction of the log throughout the log. In the wall structure, the overlapping logs are arranged in direct wood contact with each other in the thickness direction of the logs from the central area, and the logs are treated essentially dead by drying them from the mentioned central area from the bottom surface to the top surface to the end-use humidity of the wall structure.

The publication US 2004163358 Al presents a system for forming log structures, in which the log structure includes a corner joint structure, a locking bolt, a log profile and an outer coating structure.

The system also includes a vertical wedge locked by the log profiles.

The problem with a log module like the aforementioned publication is the durability of the insulation in use. In the publication, the insulation is placed between the logs on the bottom and top surfaces of the load-bearing logs, whereby the weight of the logs piles up on top of the insulation. The temperature and humidity changes of the air surrounding the log cause the log to live, so the gap between the logs can grow. In this case, the seal, which has been under a heavy load for a long time, will no longer return to its shape, and an unsealed area will remain between the logs.

O 25 5 The purpose of the invention is to create a z log wall that is easier to stack than state-of-the-art log walls and is more reliable in terms of sealing. The characteristic features of this invention can be seen > from the attached patent claim 1. The purpose of the invention is to provide a method for assembling a log wall that is easier than the state-of-the-art methods. Characteristic features of this invention

N appear in the attached patent claim 5.

The purpose of the log wall according to the invention can be achieved with a log wall for buildings, which includes several logs, of which each log includes a wooden frame cut to module dimensions, the outer side surface and the inner side surface formed opposite each other to the frame, the lower surface and the upper surface formed opposite each other to the frame and the opposite ends formed opposite each other to the frame. In addition, the log includes at least two pitkittdishahlo fitted to the upper surface or the lower surface or both in the direction between the outer side surface and the inner side surface at a distance from each other and adapted to run between the ends for the installation of a seal in the direction of the log and at least two end holes for seals fitted to the ends in the direction between the outer side surface and the inner side surface at a distance from each other and adapted to run along the bottom surface and between the upper surface and the bearing surfaces fitted to both the lower surface and the upper surface between the longitudinal beams to receive vertical loads. In addition to the logs, the log wall includes at least two gaskets each fitted to the longitudinal and end beams in the direction between the outer side surface and the inner side surface of each log at a distance from each other and adapted to run between the ends, as well as fixing screws for attaching each log to the log in contact with its lower surface and not in the direction between the lower surface and the upper surface.

O 25 5 In the wall according to the invention, sufficiently wide load-bearing surfaces - carry vertical loads between the logs, and the gaskets placed in the longitudinal beams are then left without > loading. In this case, the seals retain their elasticity 3 30, enabling effective sealing of the seals even in situations where the log body lives with environmental temperature and

N as a result of humidity fluctuations. When using fastening screws, locking the logs together is easy and fast compared to traditionally used vertical bars, for which holes must be drilled in the logs. In addition, the use of state-of-the-art vertical bars requires precise alignment of the logs so that the holes align with each other in different log layers, while when using screws, the alignment is more freely selectable. 5

In other words, each seal is adapted to run in both end grooves and longitudinal grooves. This way, with the help of seals, a completely tight structure can be formed from the log wall.

In the log, only the bearing surfaces are adapted to carry vertical loads and preferably the combined width of the bearing surface or bearing surfaces in each lower surface or upper surface can be 40-75%, preferably 45-55% of the width of the log module between the outer side surface and the inner side surface.

The log also includes locking lugs fitted to each end between the lower surface and the upper surface for end-to-end locking of the logs, and the log wall also includes locking wedges fitted to said locking lugs at their ends for attaching adjacent logs to each other. With these, the logs on the same floor can be locked together at the ends, while enabling the logs to live. en Each log is attached only with its lower surface

O 25 to the log in contact. In this case, the log wall consists of 5 smaller units connected together, enabling - the log wall to live more freely. x a o Preferably, the locking wedge is 1.8 - 2.0 times the width of 3 30 the depth of the individual locking groove in the direction between the ends = to extend the individual locking wedge to lock two logs

For N showers at the same time. The appropriate width of the locking wedge enables the logs to be fastened end to end and at the same time the logs can live in the finished log wall, while the gaskets seal the gap between the ends of the logs.

Preferably, the sealants are sealants that stretch 3 to 5 times to enable the tree to live. In this way, the seals are able to seal the log wall despite the dimensional changes due to the logs living.

Preferably, the fastening screws include a non-threaded part, which is equal in height to the height of the log and fitted immediately below the base belonging to the fastening screw, and a threaded part placed after the non-threading part to lock the fastening screw to the lower log. Thus, the threadless part enables the log to live.

Preferably, the fixing screws are = torx screws.

Torx sockets enable a sufficiently large torque to be transmitted to the fastening screw, so that a long screw can be drilled into at least two preferably solid wood logs without the formation of separate holes. It is very difficult to use ordinary Phillips, chisel and hexagon screws, because the torque sufficient for drilling the fastening screw is often so large that it breaks the usual e screw sockets mentioned above.

S 25 5 Preferably, the fixing screws with torx sockets have a diameter of - 6 mm and a length of 400 mm. In this case, the fastening screws are z strong enough to withstand the torque applied to them, but > on the other hand, thin enough to be screwed with 3 30 screwdrivers commonly found on the construction site. ©

OF

Each log is attached to the log in contact with its lower surface in the direction between the lower surface and the upper surface by means of a fixing screw in connection with only one end, enabling the log to live in the direction between its ends.

This way, the log wall will not bulge and the seals between the ends will not flatten when the log lives.

In this context, modular dimension means a dimension that is clearly smaller than the length of a standard log wall and which is advantageously used in all log walls according to the invention by stacking module-sized logs one after the other in the same log layer.

In the log of the log wall according to the invention, the longitudinal grooves and the end grooves enable the installation of seals in such a way that they are not subjected to continuous compression, as in logs adapted to the module dimensions of the state of the art. The bearing surface between the longitudinal beams carries the load, so the load is not applied to the seals. Such a structure enables reliable sealing, as the seal installed in the longitudinal and end beams maintains its elasticity and can adapt to the life of the log. With the help of seals on the ends and the lower and upper surfaces, a log wall assembled from logs can be hermetically sealed.

The combined width of the bearing surface or bearing surfaces in each lower or upper surface is 40 -— 75%, preferably 45 - 55%

O 25 from the width of the log module between the outer side surface and the inner side surface 5. In this way, the bearing surface is large enough so that it can - effectively absorb the loads caused by the upper logs. x a o The bearing surface can be uniform. In this case, it is easy to make it 3 30 straight, in which case it carries the load evenly. ©

OF

Preferably, the frame is solid wood. In this case, the extra step of sawing solid wood into boards and the step of gluing the boards can be avoided. In addition, solid wood is completely organic and therefore does not contain added chemicals such as glues that are harmful to the environment.

The frame can be made of compressed heat-dried wood to prevent the log from splitting. In compression heat drying, the moisture content of the log can be reduced from 55 to 65 percent by weight to 5 to 15 percent by weight in a quick time, when the structure of the wood stabilizes and no longer changes significantly during use, unlike untreated wood.

Advantageously, the hanger includes a third hole between the outer side surface and the inner side surface for routing cables or pipes, adapted to one or more of the following: lower surface, upper surface, ends. The third hanlo enables electrical cables or pipes or both to be routed inside the log, making their installation easy and the inner and outer side surfaces remain aesthetically first class.

The length of the frame can be 0.5 to 2.0 m, preferably 1.0 to 1.5 m. In this case, the same module-sized log can be used for the production of log sponges of different dimensions. This eliminates the need for custom-made logs, which speeds up production and facilitates storage. In addition, the transportation and handling of modular logs is easy due to the weight of the individual log

O 25 being 10 to 35 kg, preferably 12 to 20 kg.

S

Preferably, the log includes locking means for locking the logs end-= to each other. This way the logs stay in place > at a suitable distance from each other can be ensured. 2 30

S Preferably, the locking devices are locking shackles for logs

N for end locking fitted to each end to pass between the lower surface and the upper surface. Locking frames can be used together with locking wedges in such a way that the logs are locked end-to-end at a suitable distance, enabling the logs to live and the seal in the end frames to remain in its shape.

According to one application form, the log includes non-load-carrying pontoons adapted to run between the ends of the log on the lower surface and on the upper surface in order to align the log to other logs, the female pontoons of the pontoons forming the so-called longitudinal grooves.

In this case, the purpose of the pontoons is only to facilitate the alignment of the logs to each other in the transverse direction of the log, when a log is placed on top of another log.

Preferably, the log includes at least two longitudinal male pontoons fitted to the upper or lower surface in the direction between the outer side surface and the inner side surface, spaced apart and adapted to run between the ends, and at least two longitudinal female pontoons adapted to form longitudinal grooves on the opposite side of the log in relation to the male pontoons.

In the log, the male ponts and the female ponts are arranged to be spaced in relation to each other in the direction between the lower surface and the upper surface for the installation of a seal in the longitudinal direction of the log. When using a female pontoon as a longitudinal beam, the work steps of forming separate longitudinal beams and female pontoons are avoided.

O 25 5 There are two end beams at each end of the log at a distance - from each other. In this way, the seal is always placed between two logs z partially inside the end of both logs, enhancing the sealing. a

S

23 30 The purpose of the method according to the invention can be achieved with a = method for forming a log wall, in which the log wall

N consists of several logs cut to module dimensions, in which the method involves placing logs one after the other in layers, insulating the overlapping layers by placing at least two parallel seals running along the length of the log on top of each log layer, and insulating the logs in each layer also between the ends of the logs. In addition, in the method, in each layer, adjacent logs are attached end to end, each log in each log layer is attached to a log of the adjacent log layer as a log wall with the help of a screw, and the overlapping logs are supported to receive vertical loads only by means of the bearing surfaces between the longitudinal beams. In this context, the adjacent log layer refers to overlapping log layers, i.e. the log is attached with a screw to the log or logs of the log layer below the log.

Each log is attached only to the log below it, allowing the log wall to live naturally as a result of humidity fluctuations.

In the method according to the invention, the fastening of the logs from the ends to each other and the insulation of the ends enable the logs to live and then be reliably sealed.

The method uses logs with a length of 0.5 to 2.0 m, preferably 1.0 to 1.5 m. In this case, the logs are easy to handle.

S 25 5 Preferably, the logs are compressed heat dried before their use - in a log wall to stabilize the wood. Wood dried by compression heat is z stable and does not experience large moisture fluctuations like > fresh wood, which cracks when it dries. Compression heat 3 30 drying prevents the wood from splitting. 00

R

The logs can be compressed heat dried at a temperature of 110 - 150 °C for 20 - 30 h at a pressure of 2 - 5 bar. In this case, the final moisture content of the log is quickly reached under controlled conditions and thus the log does not split.

In the method, the logs are fastened in each log layer from end to end using the locking bars and locking wedges that belong to each end of the log and run between the lower surface and the upper surface. With these, the logs on the same floor can be locked together at the ends, while enabling the logs to live.

Advantageously, in the method, the logs are sealed together using sealing compound that stretches 3 to 5 times as a seal. The sealing compound is easy to install when it can be extruded into end joints and longitudinal joints.

Preferably, the logs are fixed to each other vertically using fixing screws, preferably torx screws.

The installation of the fixing screws is easy because their use does not require precise alignment. The Torx sockets enable a sufficiently large torque to be transmitted to the fastening screw, so that a long screw can be drilled into at least two, preferably solid wood en logs, without the formation of separate holes.

O 25 5 The method preferably uses torx-type fastening screws with a diameter of 6 mm and a length of 400 mm. Of course, fixing screws with other dimensions > can also be used. > 30 co

S Each log is fixed in contact with its bottom surface

In the direction between the lower surface and the upper surface of the N-shaped log, with the help of a fixing screw only in connection with one end, enabling the log to live in the direction between its ends.

The invention is described in detail in the following by referring to the accompanying drawings depicting some applications of the invention, in which

Figure 1 shows an axonometric view of a log structure according to the invention,

Figure 2a shows the outer side surface of the log of the log structure according to the invention,

Figure 2b shows a log of the log structure according to the invention from the top,

Figure 3 shows a top view of the joint of two adjacent logs of the log structure according to the invention, when the logs are cut,

Figure 4 shows the connection of two overlapping logs of the log structure according to the invention in the direction of the log,

Figure 5 axonometrically shows the logs of the log structure according to the invention laid on top of each other,

Figure 6 shows a building and a log wall assembled from logs according to the invention.

Figures 1 - 5 show a preferred application form of log structure en log 10 according to the invention. According to the invention

In all applications, the log 10 of the O 25 log structure includes a wooden frame 12 cut to 5 module dimensions, which has ends 24, - a lower surface and an upper surface 20 and 22, and an outer side surface 14 and z an inner side surface 16. The outer side surface 14 naturally refers to > the side surface that in the operating position of the log 10 as part of the picture 3 30 6 of the log wall 100 shown is placed outside the log wall 100 = against the outside air and on the inner side surface, respectively, of the log walls

The side surface coming inside the building formed by N 100.

The log 10 has at least two longitudinal grooves 18 for seals 28 formed on its lower surface 20, upper surface 22 or both, and at least two end grooves 26 for seals 28 on the ends 24 of the log 10. The seals 28 are shown in Figures 3 and 4. The longitudinal grooves 18 are placed at a distance d from each other in the direction between the outer side surface 14 and the inner side surface 16 of the log 10.

The end grooves 26 pass between the lower surface 20 and the upper surface 22 in each end 24. The end grooves 26 are also spaced apart in the direction between the outer side surface 14 and the inner side surface 16, correspondingly to the longitudinal grooves 18. Preferably, the longitudinal grooves 18 and the end grooves 26 are aligned with each other, in which case a uniform seal can be used, which goes around the log 10. In this way, the log 10 is practically formed with an inner seal and an outer seal surrounding the log 10. Between the inner seal and the outer seal, there is a shoulder 35 on both the lower surface 20 and the upper surface 22, which is the bearing surface 30 for carrying vertical loads.

In the application form of Figures 1 to 6, two female ponts 34 and two male ponts 19 for seals 28 are additionally formed on the log 10. The female pontoon 34 forms a longitudinal groove 18, into which the seal 28 is placed as shown in Figure 4. Both the male ponts 19 and the female ponts 34 are located in the direction between the outer side surface 14 and the inner side surface 16 at a distance from each other and pass between the ends 24 of the log 10. The male pontoon 19 and the female pontoon 34 of the logs to be laid on top of each other align with each other

O 25, making it easier to align the logs 5 to be laid on top of each other in the transverse direction of the log 10, as shown in figure 5. - Preferably, the female pontoon 34 is loose in relation to the male pontoon 19, z in which case the pontoons are non-load bearing. In other words > the joists do not carry the vertical loads between the logs, but they 3 30 are supported only by the bearing surface 30 between the joists. = Total width of the bearing surface 30 or the bearing surfaces 30 1

N in each lower surface 20 or upper surface 22 can be 40 to 75%, preferably 45 to 55% of the width L of the log module between the outer side surface 14 and the inner side surface 16 according to Figure 4. This is surprising, because usually the purpose of the pontoons is to lock the logs 10 in place also in the finished log wall 100, in which case they carry the load.

In the preferred embodiment of Figures 1 to 5, the log 10 preferably includes locking brackets 36 formed at the ends 24 of the log 10, which are better visible in Figure 3. The purpose of the locking brackets 36 is to lock the logs 10 in the same layer of the logs 10 from the ends 24 so that there is a sufficiently large gap between the ends 24 in the log wall according to the invention for second seals 28 to be fitted to the end frames 26.

The locking grooves 36 are preferably continuous throughout the end 24 in the distance between the lower surface 20 and the upper surface 22 of the log 10.

The locking bars 36 are preferably fitted to the end 24 of the isthmus between the end bars 26. The log can also be made without locking bars, but in this case the end locking of the logs and the correct clearance must be ensured with the help of other locking devices, which also partly enables the log to survive as a result of humidity fluctuations. The correct clearance can be 0.5 to 10 mm, preferably 2 to 4 mm.

According to Figure 3, the function of the locking wedges 36 is to receive the locking wedge 38 belonging to the log wall according to the invention, which is not a tight fitting to the locking wedge 36. The locking wedge 38 is fitted

O 25 to the locking frame 36 in the direction 5 between the upper surface 22 and the lower surface 20 of the log 10. The locking wedge 38 is dimensioned in such a way that when it is - installed in the locking bars 36, the logs 10 remain at their ends 24 = apart from each other, which enables the logs to live > sealing without suffering. The locking wedges 38 are preferably 3 30 in width between the ends 24 of the log 10, i.e. in the longitudinal direction of the log 10, such that the width of the locking wedge 38 is

N smaller than the combined depth of the two locking holes 36.

When installing the locking wedge 38 in the locking frame 36, the locking wedge 38 does not reach the bottom of both locking frames 36 at the same time.

This enables the installation of the logs 10 according to figure 3, so that there is a gap between the ends 24 of the logs 10 for the seals 28 of the end frame 26. At the same time, the locking wedge 38 and the locking lugs 36 enable the log 10 to survive as a result of humidity fluctuations without the ends 24 of the logs 10 coming into direct contact with each other. In other words, the locking wedge 38 is a tight fitting in the direction between the outer side surface 14 and the inner side surface 16 of the locking frame 38, i.e. in the transverse direction of the log 10. In this case, the locking wedge 38 uses friction to lock the logs 10 in place during installation, but the friction is sufficiently small that it enables the log 10 to live.

According to an advantageous application form, the hanger 10 can include third hangers 32 for electric cables or piping.

The third grooves 32 can be fitted to the upper surface 22, the lower surface 20 or the ends 24 or all of these optionally.

In practice, the third groove 32 can be in the direction between the inner side surface 16 and the outer side surface 14 with a width of, for example - 50 mm and between the lower surface 20 and the upper surface 22 in a depth of 20 20 - 50 mm. The third groove 32 can be placed on the edge of the bearing surface 30, preferably close to the longitudinal groove 18 forming the inner seal. According to Figure 4, with the help of the third groove 32, it is easy to pass the electric cables 44 inside the log 10, so that they do not weaken the appearance of the log 10

O 25 on inner side surface 16.

S

= The log 10 is preferably compressed heat-dried before it is cut to its z module size. Compression heat drying refers to wood > pretreatment, where the log is at a temperature of 110 - 150 °C at 20 - 30 3 30 h2 - 5 bar compression pressure. Equipment known from the state of the art, with logs, can be used for compression heat drying

N is pressed in the vertical direction with the help of a press to achieve sufficient pressing pressure. After compression heat drying, a 3 - 4 m long log blank can be planed all around,

thus forming the lower surface, upper surface, outer side surface and inner side surface. Planing can be performed, for example, by utilizing CNC technology. Finally, the log blank is cut to its module size, which creates the ends of the log. In addition to compression heat drying, the log can also be heat treated at a temperature of 220 - 240 °C.

The length of the log body can be 0.5 - 2.0 m, preferably 0.7 - 1.5 m. The height of the log can be 10 - 40 cm, preferably 15 - 25 cm. The width of the log can be 15 to 40 cm, preferably 20 to 30 cm. For example, spruce, pine or aspen or other wood material with short fibers and thus good insulation can be used as the raw material for the log frame. Such a log cut to modular dimensions, which is significantly smaller than state-of-the-art solid wood logs, is remarkably light and its weight can be 10 to 40 kg, preferably 15 to 20 kg, depending on the dimensioning. This means that it can easily be handled by one person without separate aids.

Figure 6 shows the advantageous application form of the log wall 100 according to the invention. The log wall 100 according to the invention for buildings includes, in all forms of application, a number of logs 10 laid on top of each other, according to one of the application forms shown above. The log wall 100 includes, in addition to the logs 10

O 25 at least two gaskets 28 fitted to longitudinal grooves 18 5 and end grooves 26 and fixing screws 42 for attaching each log 10 - preferably only to its lower surface 20 z in contact with the log 10 in the direction between the lower surface 20 and the upper surface 22>. > 30 co

S Module-sized logs 10 are assembled end-to-end in each log-

In N layers to form a log wall 100. Preferably, the logs 10 are attached to each other end to end, in which case the distance between the ends 24 of the logs 10 is suitable. Before forming the next log layer 40, seals 28 are installed in the longitudinal grooves 18 and end grooves 26 of the logs 10, the purpose of which is to insulate the gap between the log layers 40 as shown in Figure 4. There are two seals 28 in each layer, i.e. the so-called inner seal and outer seal, the purpose of which is to hermetically isolate the log wall. The seals 28 run parallel to the log 10 in the longitudinal direction. In the method, each log 10 in each log layer 40 is preferably attached to only one lower log layer 40 of the log 10 fixing screw 42? according to figure 4 and the adjacent logs 10 in each log layer 10 are fixed from their ends 24 to each other end to end as shown in figure 3. In addition, the overlapping logs 10 are supported on each other to receive vertical loads only by means of the bearing surfaces 30 between the longitudinal beams 18.

The seals 28 used in the log wall 100 according to the invention can be, for example, a particularly resilient sealing compound or other adhesive and sealing compound, the extensibility of which when dried is up to 3 to 5 times. In this case, when the logs are alive and the distance between the logs changes, the seal remains firmly attached to both logs, guaranteeing a hermetic seal.

The sealant is also easy to apply.

OF

S 25 The log wall according to the invention and the method for forming the log wall enable the quick erection of log buildings and a reliable tight structure. Even though the spaces between the z logs are sealed, the log as a living structure forms > a very natural structure that is functional and ecological. 3 30 The logs for the corners of the building can be of special structure and differ from the log structure according to the invention

N of logs.

Claims (6)

PATENT CLAIMS 1. Timber wall (100) for buildings, which timber wall (100) comprises several logs (10), of which each log (10) comprises - a wooden frame (12) cut to modular dimensions, - outer surface (14) and inner surface (16) designed opposite in relation to each other on the frame (12), - underside (20) and upper side (22) designed opposite in relation to each other on the frame (12), - opposite short sides (24) designed opposite in relation to each other on the frame ( 12), - at least two longitudinal slots (18) arranged on the upper side (22) or the lower side (20) in the direction between the outer surface (14) and the inner surface (16) at a distance (d) from each other and arranged to pass between the short sides (24 ) for mounting a seal (28) in the direction of the log (10), - bearing surfaces (30) arranged both on the underside (20) and on the top (22) of the axes (35) between the longitudinal slots (18) for receiving vertical loads. and the log wall (100) includes in addition to the logs (10) - at least two seals (28) arranged both on the underside (20) and on the top (22) of each log (10) in the S 25 direction between the outside surface (14) and the inside surface ( 16) O at a distance (d) from each other and arranged to go © between said short sides (24), which said seals z (28) are arranged in each longitudinal slot (18), > characterized in that each log (10) also comprises 3 30 - two longitudinal male pontoons (19) arranged on the upper side = (22) or the lower side (20) in the direction between the outer surface (14) and the inner surface (16) at a distance (d) from each other and arranged to go between the short sides (24), - two longitudinal female pontoons (34) arranged to form said longitudinal slots (18) on the opposite side of the log (10) in relation to the male pontoons (19), - at least two end slots (26) for seals (28) arranged in each said short side (24) in the direction between the outside surface (14) and the inside surface (16) at a distance (d) from each other and arranged to go between said un- lower side (20) and upper side (22), - the log (10) also includes a reading slot (36) on each short side (24) between the lower side (20) and the upper side (22) for the blank reading of the logs (10) and the log wall (100) also includes reading wedges (38) arranged in said reading slots (36) for attaching the short sides (24) of adjacent logs (10) to each other, - a third slot (32) between the outside surface (14) and the inside surface (16) for passing cables or pipes arranged on one or more of the following: the bottom side (20), the top side (22), the short sides (24). where the length of the frame is 0.5 - 2.0 m, advantageously 1.0 - 1.5 m and in the logs (10) said male pontoons (19) and female pontoons (34) are arranged to be in relation to each other in the direction between 0 the underside (20) and the upper side (22) be with clearance over the entire S 25 male pontoon (19) and female pontoon (34) width for mounting the O log (10) seal (28) in the longitudinal direction, and in the log (10) © bear only load-bearing surfaces (30) vertical loads E and in the timber wall (100) said seals (28) in addition to each - longitudinal slot (18) are also arranged in the end slots (26), and 3 30 further each log (10) is only attached to the log (10) that is = in contact with the bottom side (20) of the log in question (10) in the N direction between the bottom side (20) and the top side (22) using the fastening screw (42) only in connection with a short side ( 24) which enables the log (10) to move in the direction between its short sides (24). 2. Timber wall (100) according to patent claim 1, characterized in that the total width (1) of said bearing surface (30) or bearing surfaces (30) in each lower side (20) or upper side (22) is 40 - 75%, advantageously 45 - 55 %$ of the timber module's width (L) between the outside surface (14) and the inside surface (16). 3. Timber wall (100) according to one of claims 1 or 2, characterized in that said seals (28) are sealing compound which is 3-5 times ductile to enable the movement of the wood. 4. Timber wall (100) according to one of claims 1 - 3, characterized in that said fastening screws (42) are screws with torx heads. 5. Method for creating a log wall (100), which log wall (100) includes several logs (10) cut to modular dimensions, according to which method - the logs (10) are placed in log yards (40) and logs (10) lying on top of each other are supported from each other for receiving vertical loads only with the help of bearing 0 surfaces (30) between longitudinal slots (18), S 25 - overlapping log turns (40) are isolated by placing O on each log turn (40) at least two parallel © longitudinal seals (28) in the direction of the log (10), z characterized by the length of the frame (12) of the logs (10) being 0.5 - > 2.0 m, advantageously 1.0 - 1.5 m and according to procedure 3 30 - each log (10) in each round of logs (40) is attached only to = the log (10) that is in contact with the underside (20) of the N log (10) in question in the direction between the underside (20) and the upper side (22) with using a fastening screw (42) to a timber wall (100) only in connection with a short side (24), which enables the movement of the log (10) in the direction between its short sides (24). - the logs (10) in each round of logs (40) are also insulated between the short sides (24) of the logs (10), and - in each round of logs (40) sequential logs (10) are fastened in their short sides (24) with each other at a distance from each other using a reading slot (36) on each short side (24) between the lower side (20) and the upper side (22) and using reading wedges (38) which are arranged in said reading slots (36). 6. Method according to patent claim 5, characterized in that the logs (10) are compressed heat dried before they are used for a timber wall (100), for the stabilization of the wood. O N O N LO <Q O N I jami a o o O 0 0 oO N