LT6264B - Glued log and method of its manufacture - Google Patents

Abstract

Glued log and method of its manufacturer belongs to building structural elements, specifically for logs used in timber house construction. The applied log is characterised by higher thermal resistance, resistance to deformation and sufficiently lightweight. It is glued of five boards with the middle one (1) having formed closed air chambers, which are obtained from the block (2) of glued panels (3) cutting the middle board at an angle of 45 degrees. Asymmetric grooves (7) up to 5 mm wide are cut on both sides of the planks comprising the middle board, the panels of planks are glued at an angle of 90 degrees to each other. The outer (5) and inner boards (6) are glued to the middle board (1) so that their wood fibre makes a 45-degree angle with the wood fibre of the middle board (1).

Description

1

The present invention relates to building structural elements, in particular walls, for the construction of log houses. It is known that massive conifer hardwood is used to build log houses. Such wood logs are usually dried for 5 weeks in dryers at 40-60 ° C to a residual moisture content of no more than 20%. Dried logs are hand-crafted or otherwise processed by external surfaces, and cut-outs (cuttings) are made at the corners of the logs to form the corners of the walls. The gaps between the walls are filled with natural thermal insulation materials. Such a log house is ecological and aesthetic.

However, the disadvantage of such wallers is that the house is expensive from such walls, the logs are heavy, the construction work is complicated and the heat resistance of the house is not high. To achieve greater thermal resistance, strong logs are required, and the thickness (diameter) of the logs is limited, i. you can't get what you want. In addition, the drying of very thick logs is quite long and complicated, because the core of the array dries slower than the surface, so the log tends to twist, the wall periods appear, which reduces the tightness of the log house, and the surface of such logs tends to fracture, which causes the surface of the logs to crack, which worsens aesthetic view of the walls and thermal properties. These defects are partially eliminated by the wall produced by a known production method (see Patent Application WO9607519 (A1), published March 14, 1996, "Method for producted a log", in which the wall is produced from monolithic wood. The finished log is dried faster and more evenly, less decomposed, especially on its surface, due to the air in the grooves, in this case a higher thermal resistance of the wall is obtained.

However, this method is not effective because a solid wood is used to produce such walls, which is costly and poses significant environmental problems, and the thermal resistance of such walls is not sufficient for the thermal resistance requirements of the current houses, the wall is not sufficiently resistant to deformation. Known insulated wall constructions (see patent application US2012317907 (A1) published 20.12.2012, "Log with Thermal break" and patent US2011203193 (A1), published on 08-08-2011, "Laminated Insulated Wooden constructional construction (Laminated insulated timber for 2)

LT 6264 B building construction), where the first patent cuts the thermal resistance, the logs are formed with openings filled with thermo foam, or the second wall is formed from boards, between which the insulation material (thermoplast, polyester or polyurethane) is installed. The disadvantage of these lumberers is that the so-called wallcoverings are not ecological because their insulation uses synthetic insulation materials, such as polyurethane foam, which emit toxic gases and tend to lose density, as well as thermal resistance. Known Barn (see Patent Application VV02006048945 (A1) - 2006-05-11 "Log Material", consisting of several first cut wood beams, glued perpendicularly to each other's wood fiber direction. When the deformation dries or the temperature changes in the atmosphere, the inner part can be formed from the secondary wood, which reduces the cost of the wall. The disadvantage of the known wall is that its thermal resistance does not meet the thermal resistance requirements of the now log houses, the wall wall itself is quite heavy, which complicates The object of the invention is to increase the thermal resistance of an ecological wall, to facilitate it, while maintaining the strength and stability of the wall for temperature deformations, while facilitating transportation and mounting of the walls. external (5) and two v (6), of which the middle point (1) is cut from a multi-layered board block (2) in two different directions, two outer (5) are rigidly adhered to the sides of the board (1), and two internal beams (6) are attached to the ends of the cut boards. ).

The board block (2), cut from the middle beam (1), is glued from the boards (3), which cut longitudinal grooves (7) with a width of up to 5 mm, and gaps between the grooves to 1, 5 cm. The longitudinal grooves (7) in the boards (3) of the middle beam (1) are cut asymmetrically relative to each other on both sides of the board, and the groove depth is optional but recommended over the entire thickness of the board, leaving a non-recess (8) proportional to the width of the groove. 3

LT 6264 B

The boards (3) of the middle wall (1) of the wall are glued together so that the longitudinal grooves (7) of the one-layer boards with the longitudinal grooves (7) of the boards of the other layer form a steep angle and the wood fiber of one-layer boards is perpendicular to the wood layer of the other layer of boards.

Wall external (5) and inner beam (6) are glued to the middle beam (1) so that the beams of the middle beam (1) have a 45-degree beam.

The width of the middle beam (1) is formed by a plurality of layers of boards that, when added to the outer beams (6), correspond to the thickness of the wall to be produced.

The height of the middle beam (1) is formed by cutting out the strip of desired width from the panel panel block (2), to which the ends of the boards, when the inner beams (6) are glued, would obtain the desired wall height.

The longitudinal grooves may be made at the inner (6) and outer (5) points of the wall.

Inside the wall (6) and outer lugs (5) there are tongues (9) and grooves (10) for wall injection. The essence of the invention is that the wall is glued from the five beams, the middle beam (1) of which is obtained from the boards (3), where the longitudinal grooves (7) are cut from both sides, such boards are glued together to the shields which are glued crosswise as follows. that the direction of the slabs (7) and boards of the boards cut into one panel is perpendicular to the direction of the cut-out grooves (7) and the wood fibers of the other shields, and cut the middle beam (1) from the formed shield formwork block (2) to with the sides of the boards rigidly adhering to the outside of the wall (5), and gluing the inner lining of the wall (6) to the ends of the cut boards so that the wood bundle of these beams with the beams of the boards of the middle beam (1) would form an angle of 45 degrees.

The grooves (7) are cut asymmetrically with respect to each other on both sides of the board, at a distance of up to 1.5 cm from each other, and the width of the grooves is cut to 5 mm.

The grooves (7) are cut in the middle board boards throughout the thickness of the board, leaving a non-recess (8) proportional to the groove width.

The thickness of the middle beam (1) is formed by increasing the number of layers of adhesive boards according to the thickness of the wall to be produced by gluing the outer bands (5). 4

LT 6264 B

The height of the middle beam (1) is formed by cutting the desired width band of the bonded board panel (2) corresponding to the height of the wall to be obtained by gluing the inner beams (6).

On the surface of the bonded beam, the tongues (9) and grooves (10) are pressed through the wall length to bind the wall. The invention is illustrated in FIG. 3, FIG. FIG. FIG. The overall transverse cross-sectional view is illustrated. FIG. The longitudinal side view of the wall is illustrated through a line of board gluing. FIG. The longitudinal side view of the wall is illustrated through the center of the board. FIG. The longitudinal top view of the wall is shown. FIG. The block of glued boards is shown.

The wall is made of five beams, middle (1), two outer (5) and two inner (6). The middle beam is cut from a multi-layered interlocking board block (2) with boards (3) asymmetrically cut from both sides of the board with longitudinal grooves (7) with non-recess boards (8), and the boards layered so that the grooves (7) of each layer and the fibers of these boards are perpendicular to the grooves (7) of the boards of the other layer and to the fibers of the boards of this layer. The width of the grooves (7) is up to 5 mm, and the spacing between the grooves is up to 1.5 cm. The depth of the grooves is recommended through the thickness of the board, leaving a non-cut (8) proportional to the width of the groove (7). The outer battens (5) are glued to the surface of the cut inner beam (1), and the inner battens (6) are glued to the ends of the cut boards so that the beam of the middle beam (1) forms an angle of 45 degrees. Inside the wall (6) and the outer beam (5) there are tongues (9) and grooves (10) made throughout the wall length for wall injection. The inside and outside of the wall can be cut longitudinal grooves to increase thermal insulation.

The produced lime is produced by bonding five beams of wood, where two outer beams (5) and two inner beams (6) are attached to the middle beam (1). The middle beam (1) is made of boards (3), in which the grooves (7) are cut asymmetrically from both sides of the board, choosing a groove width of up to 5 mm and spacing between grooves of up to 1.5 cm. The grooves are cut along the board fiber through the thickness of the board, leaving a non-cut (8) proportional to the groove width. The boards thus prepared (3) are bonded to each other 5

EN 6264 B shields. One panel is glued over the other by rotating it 90 degrees so that one panel boards and grooves (3) are perpendicular to the other panel boards and grooves (3). The number of panels depends on the required wall thickness. More panel rows are used to make thicker walls. The resulting panel formwork (2) is cut into strips, the width of which depends on the desired wall height. The cut is made at a 45-degree angle to the board fiber. The inner ends (6) of the boards of the middle beam (1) thus obtained are adhered to the ends of the boards and the outer beams of the boards (5). These beams cover the ends of the boards (3) of the middle beam (1), which facilitates further processing of the wall. Wall sidewalls (5) and inner beams (6) are glued in such a way that with the beam of the middle beam (1) they form an angle of 45 degrees. The resulting workpiece is planed and milled to give it the desired profile. In order to ensure the tightness and stability of the longitudinal injection of the walls, tongues (9) and grooves (10) are made. Longitudinal grooves can be cut in the inner (6) and outer beam to increase thermal resistance.

The wall design of the wall gives the wall a higher thermal resistance and resistance to deformation. The grooves (7) in the boards (3) are selected up to a maximum of 5 mm, since only the grooves of this width form the closed air chambers (10) in the middle beam (1) where no heat is conveyed by natural convection. Because the air is the best thermal insulator, the enclosed chambers with the air contained in them provide good thermal resistance to the wall. With increments of more than 5 mm, air movement in the air chambers (4) results in heat transfer through natural convection, which reduces thermal resistance. The distance between the grooves to 1.5 cm and the non-recess proportional to the groove width, according to the existing technical possibilities, are optimum, ensuring a uniform groove arrangement across the width of the board and panel.

The construction of the inner batt is formed from the formwork of the boards, where the direction of one layer of wood fiber is perpendicular to the direction of the other layer of wood, which not only forms closed air chambers in the middle beam, but is stable, resistant to loads and deformations, because better wood mechanical properties of fiber compensate for fiber worse. It is known that the tangential drought of coniferous wood reaches 7-10%, radiant drought is 4-5%, and longitudinal only 0.1-0.3%. Timber (1) Boards (3) Wood Fiber Orientation 45-degree Wall Internal (6) and External (5) Wood 6

The LT 6264 B provides stability to the wall and eliminates the build-up of buildings due to drought, which is what makes the building even more stable.

The protruding effect is higher compared to the known (prototype) thermal resistance (see Table 1). Due to its cellular structure, the wall is much lighter and more resistant to deformation. Table 1

Characteristics Wall-mounted monolith Prototype Proprietary patented wall seal Heat conductivity λ (W / mK) 0.12 0.12 0.08 220 mm wall thermal resistance R (m2K / W) 1.83 1.83 2.59 Wood strength compressed fc, k (MPa) -4.5 -15 -14 1 m3 litter weight (kg) -480 -480 -330 Seat (down) of the building% -3 -0.1 -0.1 Sound propagation rate v (m / s) -5000 -5000 -3700 The data in Table 1 show that the reported wall seal has a 33% reduction in thermal conductivity and a 41% higher thermal resistance, with higher compressive strength and about 30% lighter and less conductive.

To sum up, compared to the prototype, a new set of structural elements brought to the wall allows for a more environmentally friendly, higher thermal resistance and sound insulation wall, much easier, simplifies and facilitates their transportation and construction work, as well as saves the environment, since it can produce wall-to-wall production. non-conditioning wood should also be used

Claims (15)

7 EN 6264 B DEFINITION DEFINITION 1. A glued wall consisting of several wood beams stiffly glued together perpendicular to the direction of their wood fiber with tongs and grooves for binding the wall, characterized in that the wall is composed of five beams, a middle (1), two the outer (5) and the two inner (6), of which the middle point (1) is cut from the multi-layered board block (2), two outer (5) are rigidly adhered to the sides of the board (1), and to the cut two inner beams at the ends of the boards (6). 2. Glued wall according to claim 1, characterized in that the board block (2), cut from the middle beam (1), is glued from the boards (3), which cut the longitudinal grooves (7) with a width of up to 5 mm and gaps between grooves up to 1.5 cm. 3. Glued wall according to claim 2, characterized in that the longitudinal grooves (7) in the boards (3) of the middle beam (1) are cut asymmetrically from each other on the sides of the board, and the depth of the grooves (7) is optional but recommended over the entire board. thickness, leaving a non-cut (8) proportional to the groove width. 4. Glued wall panel according to claim 2, characterized in that the boards (3) of the wall panel (1) are glued together so that the longitudinal grooves (7) of the one layer boards with the longitudinal grooves (7) of the boards of the other layer form a static angle and one layer of boards. wood fiber is perpendicular to the other layer of boards for wood fibers. 5. Glued wall according to claim 2, characterized in that the outer (5) and inner beams (6) are glued to the middle beam (1) so that the beam (3) of the middle beam (1) forms an angle of 45 degrees with the wood fiber. 6. Glued wall according to claim 1, characterized in that the width of the middle beam (1) is formed by a plurality of planks so as to correspond to the thickness of the wall to be produced when the side panels 8 LT 6264 B are added. 7. Glued panel according to claim 1, characterized in that the height of the middle beam (1) is formed by cutting the strip of desired width after the inner ends (6) of the boards are glued to the batten of the panel panel block (2), to obtain the desired wall height. 8. Glued wall according to claim 1, characterized in that longitudinal grooves can be made at the inner (6) and outer (5) points of the wall. 9. Glued wall according to claim 1, characterized in that the wall (6) and the outer (5) points have a groove (9) and a groove (10) for wall injection. A method of producing a glued wall, in which a plurality of wood beams are rigidly bonded to each other so that their wood fibers are perpendicular to one another, and the wall surface is milled with a tongue and groove for the injection of a wall, without being adhered by five beams having a middle beam ( 1) is obtained from boards (3), which cut the longitudinal grooves (7) from both sides of the board, glue such boards together to the panels glued crosswise over each other so that the grooves (7) and the boards of the boards cut into the boards of one panel would be perpendicular to the direction of the cut-out grooves (7) and the wood fibers of the other panel boards, and cut the middle beam (1) from the formed shield formwork (2) at an angle of 45 degrees to which the outer sides of the wall are rigidly adhered (5), and cut into the boards. the ends of the wall glue the inner lining of the wall (6) so that the wood fiber of these laths it would have a 45-degree angle to the wood beams of the middle beam (1) boards. A method of producing a glued wall according to claim 10. characterized in that the grooves in the boards (3) of the middle beam (1) are cut asymmetrically from each other on both sides of the board, at a distance of up to 1.5 cm from each other, and the width of the grooves being cut to 5 mm. 9 LT 6264 B A method of producing a glued wall according to claim 10. characterized in that the grooves in the boards (3) of the middle beam (1) are cut across the thickness of the board, leaving a non-recess (8) proportional to the width of the groove. A method of producing a glued wall according to claim 10. characterized in that the thickness of the middle beam (1) is formed by increasing the number of layers of adhesive boards according to the thickness of the wall to be produced by gluing the outer bands (5). A method of producing a glued wall according to claim 10. characterized in that the height of the middle beam (1) is formed by cutting off the desired width of the strip of the glued board panel (2) corresponding to the height of the wall to be obtained. A method of producing a glued wall according to claim 10. characterized in that, on the surface of the bonded wall, the tongues (9) and grooves (10) are pressed through the wall length to bind the wall.