LT5383B - Wood unit and method for manufacturing it - Google Patents

Abstract

The invention relates to a multichamber wood unit (1) and a method for manufacturing it. The wood unit is composed by two outside wood elements (2) having a substantially rectangular or other cross section and disposed in parallel with each other and spaced. Said wood elements (2) are interconnected with transverse wood elements (4) by dovetail join (5). Between said transverse wood elements (4), there are fitted in a plurality of inside partitions (3) disposed in parallel with the outside wood elements (2). Chambers (7) constituted between said wood elements (2, 3, 4) provide better water proofing and ventilation properties. The wood unit (1) is light and has good mechanical properties. Different houses may be mounted from the wood unitssubstantially manually. The wood units according to the invention are suitable in the case then there is need to provide residents with the living house after disaster.

Description

The invention relates to the woodworking industry, more particularly to a multi-chambered wood product and to a method of making it. The multi-chamber wood product is intended for use in the construction industry as a composite element of walls, partitions or as a separate element of a wooden structure,

TECHNICAL LEVEL

Today, the construction industry, especially in the construction of detached houses, uses mostly round or rectangular wooden logs. The disadvantage of these logs is that the wood tends to "twist" over time, i.e. changes its geometric properties under the influence of internal stresses. For this reason, it is practically impossible to store ready-to-build logs for a long period of time because they change their geometric shape if the internal stresses of the tree are not constrained by other forces, such as compressing from the opposite side of the stress.

Another disadvantage of such logs is that solid wood has a relatively high moisture capillary permeability.

Attempts have been made to solve these problems by using hollow wood products, which are obtained, for example, by cutting the log lengthwise through the center into four sections, by rotating the in-axis and then gluing each other to obtain a rectangular cross-section product with inner cavity. . Such wood products and methods of making them are described in Swedish Patent SE469880, International Patent Applications WO99 / 62679 and WO93 / 08000. International patent application WO96 / 23633 discloses a method for obtaining hollow wood products from a plurality of glued, mutually elongated wood elements cut from a rectangular cross-section wood product parallel to one of its diagonals. Corresponding joining of these cut longitudinal elements together results in closed hollow timber products of square, rectangular, hexagonal or other cross-section.

However, these products, too, are not comfortable in construction in the sense that they are relatively heavy, requiring the use of a variety of heavy lifting construction equipment when constructing buildings made of such wood products. In addition, these wood products are not well ventilated because the inner chambers are closed, which allows moisture to accumulate inside them.

THE SUBSTANCE OF THE INVENTION

The present invention provides a novel lightweight construction multi-chamber wood product for use in the construction industry as a composite structural member of walls, partitions, or as a separate structural member of wood, and a method for its manufacture. The wood product of the present invention is formed of two edges of elongated wood elements of substantially rectangular or other cross-section arranged parallel to each other and interconnected by transverse joints in the form of flat-glued tapered tail joints. In addition, a plurality of internal baffles are arranged between these edge members arranged parallel to the edge members and secured at their ends to the transverse joint members by flush-adhesive joints. The chambers formed between these individual wood elements give this wood product good waterproofing, ventilation properties, and the overall structure is lightweight and has better mechanical properties than already known wood products of similar use. multi-purpose structures from such wood products can be assembled practically manually.

The method of manufacturing the multi-chamber wood product of the present invention is characterized in that all prefabricated wood product composite elements edge members and internal partitions are interconnected through transverse connecting members. The number of joints depends on the length and width of the timber product being produced. All joints in the joints of the wood product shall be lubricated with glue, the outer members shall be joined by transverse members by means of swallow-tail joints, then the inner partitions shall be inserted. The resulting multi-chamber wood product is dried and ready for use.

As is known, solid wood has a relatively high capillary moisture permeability, whereas the chambers formed between the individual wood elements of the multi-chamber wood product of the present invention obstruct the capillary moisture and the accumulated moisture is easily vented. In addition, these cameras can additionally be used as cavities for conducting various communications and installations or, optionally, all or only part of them may be additionally filled with heat and / or soundproofing material, thus further improving the respective properties of the entire multi-chamber wood product.

The edge wood elements of the multi-chamber wood product of the present invention have protrusions at the top and corresponding grooves at the bottom which facilitate vertical interconnection of the multi-chamber wood products and ensure sealing between the individual wood products. Unlike solid logs which, due to internal stresses, change their geometric shape and therefore cannot be stored for long periods, the geometrical properties of the multicellular wood products of the present invention change very little over time, and it is much easier to restore their original geometric shape.

The present invention requires an amount of wood corresponding to a 17 cm thick log to produce a 20-25 cm thick multi-chamber wood product. Meanwhile, the thermal insulation properties of a manufactured multi-chamber wood product are equivalent to the thermal insulation properties of a 50 cm thick log. In this way, among other advantages, the multi-chamber wood product of the present invention allows for wood saving.

DRAWING FIGURES DESCRIPTION

The invention will now be further described with reference to the drawings in which:

Fig. 1 is a perspective view of a multi-chamber wood product of the present invention having three inner partitions and four inner chamber rows, respectively;

Fig. 2 is a fragmentary end view of the multi-chamber wood product of Fig. 1;

Fig. 3 is a partial top view of the multi-chamber wood product of Fig. 1;

Fig. 4 is another embodiment of a multicellular wood product of the present invention having fewer internal partition rows;

Figure 5 is a top view of another embodiment of the multicellular wood product of the present invention wherein the inner partition is made of a material other than wood.

Fig. 6 is a separate perspective view of a side longitudinal member of a multi-chamber wood product;

Fig. 7 is a separate perspective view of the transverse connector of the multi-chamber wood product of Fig. 1.

DESCRIPTION OF THE INVENTION

Figure 1 is a perspective view of a multi-chamber wood product 1 of the present invention. As can be seen in Figure 1, the multi-chamber wood product 1 of the present invention is a composite product consisting of two longitudinal or outer longitudinal wood elements 2 made of longitudinal wood and arranged parallel to and spaced apart from a plurality of internal partition elements 3. between the edge members 2 parallel to each other both the edge members 2 and the plurality of transverse connecting members 4. The inner members 3 may also be made of longitudinal wood or any other material used in the building industry with suitable thermal insulation, waterproofing, etc. properties.

In this particular case, the edge members 2 and the inner members 3 of the multi-chamber wood product 1 are substantially rectangular in cross section and are interconnected by transverse connecting members 4, cut from longitudinal wood and arranged perpendicular to the inner surfaces and inner members 3 of the edge members 2. .2 and 3, the edge members 2 are interconnected by a transverse member 4 via a swallow-tail flush-to-glue joint 5. The inner members 3 are connected to a cross member by a flush-to-glue joint 6. This method of joining ensures elements, ie the interconnection and fixed distance between the edge elements 2, the inner elements 3 and the transverse elements 4. The transverse elements 4 are disposed along the wood article 1 approximately every 0.6-2.0 m, and preferably 0.8-1.4 m, and their number depends on the length of the wood article 1 being produced. The first transverse connecting member 4 is arranged from the end of the wood product 1 at a distance twice the width of the final wood product 1. This is done by leaving space for the angular connection of the two wood products 1.

The inner members 3 and the transverse members 4 act as partitions dividing the space between the peripheral elements 2 of the multi-chamber wood product 1 into a plurality of separate inner chambers 7. The number of inner members 3 rows between the peripheral elements 2 and the same number of inner chambers 7 along the wood product 1 depends on the destination of the final wood product 1. If the final wood product 1 is intended, for example, for the construction of exterior walls of a house subject to more stringent requirements for thermal insulation, waterproofing, sound insulation and other, the 3 rows of internal elements will be more than if the final wood product 1 is for example or partitions. Figures 1, 2 and 3 illustrate a multicamera wood product 1 having three inner members 3 and, respectively, four rows of inner chambers 7 along the wood product 1, while Fig. 4 shows an alternative multicamera wood product 1 having two inner members 3 and , respectively, three rows of inner chambers 7 along the wood product 1.

As shown in Figs. 1 and 2, the outermost elements 2 of the multi-chamber wood product 1 are made of longitudinal wood and have a substantially rectangular cross-section. Each edge member 2 of the wood product 1 has protrusions 8 formed on the upper side and corresponding recesses 9 formed on the lower side. These projections 8 and recesses 9 are for sealing and facilitating the vertical joining of multi-chamber wood products 1 without any additional sealing material, for example by assembling walls or partitions from a plurality of stackable multi-chamber wood products 1.

Figure 5 is a top view of yet another embodiment of a multicell wood product of the present invention. This variant differs from the ones described above in that it is provided with a single internal element 3 made, for example, of polystyrene board or other material, which has particularly good thermal, waterproofing and acoustic insulation properties. The thickness and weight of such a multi-chamber wood product 1 is significantly less than that described in Figs. 1-3, and such wood product is ideal for the construction of lightweight prefabricated houses or the assembly of various internal partitions.

The multi-chamber wood product 1 of the present invention uses 812% moisture wood. It is best to use 8-10% humidity wood for internal elements 3 and transverse elements 4, and 10-10-12% moisture content for edge elements 2, in which case the inner wood will eventually swell and reinforce the assembled structure after assembling the multi-chamber wood product 1.

First of all, the woodworking equipment prepares separately the components of the wood product 1: the edge elements 2, the inner elements 3 and the transverse connecting elements 4. Their dimensions are selected according to the length and width of the multi-chamber wood product 1. The inner members of the peripheral members 2 are provided with predetermined intervals by means of a predetermined spindle-tongue groove 11, where necessary - forming projections 8 at the upper edge and corresponding grooves 9 at the lower edge (Fig. 6). In the transverse elements 4, the corresponding cavities 11 of the edge elements 2 are formed by means of a swivel-shaped connecting plate 12 and cavities 13 for connecting the inner elements 3 (Fig. 7). The number of grooves 13 depends on the width of the wood product 1 and how many internal elements 3 are to be installed.

Having prepared components of the wood product 1, i.e. edge elements 2, internal partitions 3, and transverse connecting members 4, proceed to the next production step of the multi-chamber wood product 1: interconnecting the composite elements. Before joining the components of the multi-chamber wood product, the joining points are additionally lubricated with glue. First, the edge elements 2 are joined together by means of the slotted sticks 12 of the transverse elements 4 inserted into the grooves 11 to form the swallow-tail joints 5. The inner elements 3 having a length equal to the distance between the adjacent transverse elements 4 are inserted into the grooves 13. resulting in a robust and stable construction multi-chamber wood product 1, prevented by swallow-tail joints 5. The multi-chamber wood product 1 is ready for use.

Lightweight multi-chambered wood products 1 having a plurality of internal chambers 7 are obtained in the manner described above, and these chambers 7 can be used as cavities for conducting various communications and installations or may be additionally filled with thermal insulation or the like.

material, thereby further improving the thermal insulation of the wood product 1 and so forth. properties.

The multi-chamber wood products 1 of the present invention are primarily intended for the construction of multi-purpose buildings, including residential buildings. Because lightweight multi-chamber wood products 1 are lightweight, virtually no heavy construction equipment such as cranes is required for residential construction, and both external and internal home walls are easily and quickly assembled manually. The projections 8 and notches 9 of the edge elements 2 of the multi-chamber wood product 1 not only facilitate the accurate assembly of the walls of the house, but also seal the gaps between adjacent multi-chamber wood products 1 without the use of any additional sealing material.

The present invention is described by way of example with substantially rectangular cross-sections 2. It is obvious to those skilled in the art that other cross-sections may be used 2. For example, the outer sides 2 of the wood members 1 opposite the inner side with the connecting grooves 11, can be made convex while the inner joints are left unchanged. In this case, the house made of such timber products will look as if it were built of round logs. It is possible to make a convex surface of the wood product 1 only on the edge element 2 which, when assembled, will face the outside. The exterior of the house will look like a round log house, while its interior walls will be smooth. Various modifications are possible without departing from the spirit and scope of the present invention as defined by the following definition.

Unlike solid logs which, due to internal stresses, change their geometric shape and therefore cannot be stored for long periods, the geometrical properties of the multicamera wood products 1 of the present invention change very little over time and are easily reversible. This allows you to pre-prepare such multi-chamber wood products and use them when necessary. For these reasons, the multi-chamber wood products 1 of the present invention are useful in cases where there is an urgent need to provide housing to residents following natural disasters such as earthquakes, typhoons, floods and the like.

Claims (7)

DEFINITION OF INVENTION 1. A multi-chamber wood product (1) consisting of a plurality of individual longitudinally interconnected wood elements, forming internal cavities, characterized by: - edge longitudinal members (2) having vertical joining members (8, 9) formed at opposite edges of the side members (2) and a plurality of joining grooves (11) on their inner sides, the side members (2) being spaced apart and parallel to each other; - transverse connecting members (4) having studs (12) for connection to the edge grooves (11) and grooves (13) on the side surfaces for connection to the inner partition elements (3) arranged between the edge elements (2) perpendicular to their inner surfaces and the edge elements (2) with one another in the form of flush-adhesive joints (5); - internal partition elements (3) arranged parallel to the edge elements (2) and secured at their ends in the grooves (13) of the lateral surfaces of the transverse connecting elements (4) by flush-glue joints (6) thereby forming a plurality of inner chambers (7). 2. A multi-chamber wood product (1) according to claim 1, characterized in that the wood elements (1) are substantially rectangular in cross section and have an upper projection (s) (8) and a lower indentation (9) for to facilitate vertical interconnection of multi-chamber wood products (1) and to ensure tightness between individual multi-chamber wood products (1). 3. A multi-chamber wood product (1) according to claim 2, characterized in that the outer side of at least one edge element (2) of the wood product (1) is convex. 4. A multi-chamber wood product (1) according to claim 2 or 3, characterized in that the outer sides (2) of both wood elements (1) are convex. 5. A multi-chamber wood product (1) according to claim 1, characterized in that the flush-glue joint (5) connecting the edge elements (2) with the transverse elements (4) is a swallow-tail joint (5). 6. A method of manufacturing a multi-chamber wood product (1) comprising pre-treating, assembling and / or gluing components of a wood product into one another, characterized in that: - forming the edge elements (2) by forming, at predetermined intervals on their inner sides, the tails (11) of the swallow-tail, and the projections (8) and the grooves (9) on the upper and lower edges; - prepares transverse connecting members (4), forming at their ends dowels (12) and a plurality of indentations (13) on the lateral surfaces; - inserting the transverse connecting members (4) by their spacers (12) into the corresponding grooves (11) of the outer members (2), having previously applied the adhesive to the connecting surfaces, thereby joining the outer longitudinal members (2); - inserting internal partitions (3) of pre-prepared length into the grooves (13) of the transverse joints of the lubricated adhesive, thereby forming a plurality of inner chambers (7); - drying the multi-chamber wood product thus collected. 7. A method according to claim 6, characterized in that it produces grooves (11) in the peripheral elements every 0.6 to 2.0 m, preferably in the range of 0.8 to 1.4 m.