WO2011087397A1

WO2011087397A1 - Panel

Info

Publication number: WO2011087397A1
Application number: PCT/RU2010/000765
Authority: WO
Inventors: Владимир Михайлович ШАТАЛОВ; Виктор Петрович РЫБАЛКО
Original assignee: Shatalov Vladimir Mikhailovich
Priority date: 2010-01-15
Filing date: 2010-12-17
Publication date: 2011-07-21

Abstract

The present invention pertains to the field of building structures, and relates to a panel reinforced by wooden pegs across the entire thickness thereof and including layers of wooden parts, in which the directions of the wood grain in at least two of said layers intersect. The panel is characterized in that the side faces of said parts in at least one of said layers are joined by wooden pins and/or dovetail keys, while the pegs are arranged at a given inclination and oriented in at least two non-coincident directions. The technical result is an increase in the resistance of the panel to peeling and an increase in the strength of the side joints of the wooden parts.

Description

PANEL

FIELD OF THE INVENTION

The invention relates to building structures, and more specifically, to layered building panels of wooden parts.

BACKGROUND

In the construction of prefabricated elements, prefabricated wooden elements are widely used, made in the form of wall and / or ceiling elements mounted directly on the construction site.

Glued multilayer wood panels are known, consisting of several layers of wood parts glued together, in particular plywood, joinery and (AU 80770/82 B, USSR copyright certificate N ° 1377352, European patent N ° 0194238). These panels are mainly used as finishing materials and for the manufacture of unloaded or lightly loaded parts of furniture products.

Multilayer wood panels with intersecting wood are known.

one

fibers (RF patent N ° 2198271 C2, published US patent application N ° 2004/0101649 A1, European application No. 1321598 A2, European application 34 ° 0564675 A1, publication of international application WO 2008/028925 A1, German application N ° 3517449 A1, German application N ° 3517449 A1, German application Ν ° 3840093 A1, German utility model N? 29721848 U1, U.S. patent N> 6106655, Swiss patent No. 664185 A5, Canadian application No. 2463192 A1, UK application No. 292734A, US patent No. 7384675 B2) .

In the aforementioned European application No. 0564675 A1, UK application No.

292734A and U.S. Pat.No. 7384675 B2, wood layers are bonded together to glue.

From the aforementioned US Pat. No. 6,106,655, glued laminated wood panels are known comprising layers of wooden boards joined side ends and superimposed by the layers on top of each other, in which the directions of the wood fibers in adjacent layers are crossed, longitudinal grooves for glue are made in the layers.

The disadvantage of glued multilayer wood panels is that the volatile components of adhesives inevitably pollute indoor air, have a smell and can be toxic, and hazardous and harmful substances can be released when burning such products, which makes them difficult to process and reduces

fire safety. In addition, adhesives form a diffusion barrier that impedes normal moisture exchange.

From the aforementioned German application N ° 3517449 it is known that the joining of wood layers with a cross orientation of wood fibers by hot pressing.

The disadvantage of this connection is the low strength and complexity of the technology.

From the mentioned German patent for utility model DE 29721848 W, it is known to join boards in adjacent layers with crossed wood fibers by means of metal pins.

From the aforementioned European application 1321598 A2, multilayer wood panels are known with crossed wood fibers in adjacent layers, in which the board layers are interconnected by non-wood pins (metal, aluminum, plastic, fiberglass reinforced elements), and their ends are joined to the tongue and groove tongue.

Multilayer wood panels with non-wooden dowels are characterized by their high cost and are difficult to dispose of.

From the above-mentioned publications of international applications WO 2007/028187 A1, WO 2008/028925 A1 and from the German application заявки ° 3840093 A1, joining of boards with wooden dowels is known. A known panel reinforced with wooden dowels over its entire thickness, containing layers of wooden parts, in which the directions of the wood fibers in at least two of the mentioned layers are crossed and the dowels are oriented normal (patent for the invention of the Russian Federation N ° 2198251, selected as a prototype).

A disadvantage of the known panel that impedes the achievement of the following technical result is that under the action of bending forces and forces oriented in the same direction with the pins, the lateral joints of the parts in the layers diverge and delaminate due to the tangential displacement of the layers relative to each other and plane-parallel sliding wooden parts along the pins.

SUMMARY OF THE INVENTION

For definiteness, the terms and expressions used in this text are given the following meaning and scope.

The term "board" means lumber up to 100 mm thick and more than double the width.

The term “face” means any of two opposite wider longitudinal surfaces of the lumber, as well as any longitudinal surface of the lumber with a square cross section.

The term "end face" means the front or rear end of a wooden product.

The term "lateral end" or "edge" means any of the two ends of the wooden products forming the layer, located between the surfaces of the layer.

The term "stud" means a rod fastener that is installed with an interference fit for fastening layers of wooden parts. The term "dowel" means a rod fastener, installed with an interference fit, for fastening wooden parts together inside the layers.

The first objective of the present invention is to expand the arsenal

building panels. The second objective of the present invention is to increase the resistance of the panels to delamination. The third objective of the present invention is to increase the strength of the side joints of wooden parts in the layers of panels.

The technical effect of the present invention is to increase the resistance of the panels to delamination and increase the strength of the side joints of wooden parts in the panels compared to the prototype.

These tasks are solved due to the fact that in the panel reinforced

wooden pins throughout its thickness, containing layers of wooden parts, in which the directions of the wood fibers are crossed in at least two of the layers, the side ends of the parts in at least one of these layers are joined together by wooden dowels and / or dovetail dowels, and the said pins are inclined and oriented in at least two diverging directions.

As indicated above, the panel parts are interconnected with wooden dowels, pins and / or dowels (fasteners) with interference. Preload is provided by increasing the volume of fasteners as a result of equalization of moisture between them and wooden parts. Fasteners with reduced moisture content are used relative to the parts, for which the elements are usually dried to a greater extent than the parts, the dry elements are placed in the holes inside the parts, and the sizes of the cross-sections of the elements and holes are selected so that an extension arises when the elements expand. The strength of the joint is affected by the initial moisture of the parts and fasteners, as well as the coefficients of their volume expansion upon absorption of moisture. The absorption of moisture by the fasteners leads to their volume expansion, and the absorption of moisture by parts leads to a decrease in the diameter of the holes, therefore, the strength of the connection is higher, the higher the difference in moisture content of the fasteners and parts and the higher their volume expansion coefficients.

The location of the dowels at an angle to the main plane of the panel and the orientation of the dowels in several non-parallel directions, that is, the crossing of the dowels, eliminates the delamination of the panel under the action of forces directed at any angle to the normal of the panel.

In particular, the pins can be located at an angle of 45 degrees to the plane of the panel and can be oriented in two different directions so that the pins having the same orientation are located in mutually parallel planes, and between them also in mutually parallel planes there are pins in a different orientation , while the pins in adjacent planes are crossed at an angle of 90 degrees.

In a particular embodiment of the panel, said wood parts are linear sawn timber of essentially tangential cut.

The specific thickness of the layers is selected depending on the requirements for load, noise, heat and moisture insulation.

Preferably, the width of individual wooden parts may be from 8 to 120 mm, particularly preferably from 40 to 400 mm.

In one particular embodiment, the panel comprises at least one layer of wooden parts with a cross-sectional height less than the thickness joined by wide ends. Such layers are most suitable for creating power layers working for longitudinal bending, in particular, for creating beam structures and horizontal ceilings.

In yet another particular embodiment, the panel comprises at least one layer of wooden parts with a cross-sectional height less than the thickness, joined together by narrow ends. Such layers are most suitable for connecting power layers made of parts with a large cross-sectional area and for creating outer layers.

Preferred parts with a cross-sectional height less than the thickness are boards with a height to width ratio of 1: 30 to 1: 2.

In another particular embodiment, the panel comprises at least one layer of wooden parts with substantially the same height and width

cross section.

Preferred parts with substantially the same height and width of the cross section are bars with a coefficient of uneven cross section from 0.7 to 1.3.

In a particular embodiment of the panel, the wood fibers in said at least two layers of wooden parts with substantially the same height and width of the cross section are oriented in substantially the same direction. This makes it possible to form panels containing several power layers interconnected by layers with intersecting fibers.

In one particular embodiment of the panel between said two layers of wooden parts with substantially the same height and width of the cross section, at least one of said layers of parts with crossed wood fibers is arranged. In yet another particular embodiment of the panel, said wood parts of at least two adjacent layers are staggered. This arrangement of the layers is most preferable, since during bending, the panel does not diverge over the entire thickness, but only over the thickness of the individual layers, which makes it possible to increase its moisture and noise impermeability.

In another particular embodiment of the panel, the surface of the layers is provided with rows of heat-insulating grooves. This allows you to further increase the moisture and soundproofness and reduce the thermal conductivity of the panels.

In one particular embodiment of the panel, the lateral ends of the said wooden parts are lapped together.

In another particular embodiment of the panel, the lateral ends of the said wooden parts are provided with longitudinal locking protrusions and cavities of a reciprocal shape.

The lap joint and the locking knots of the protrusion-trench type additionally strengthen the lateral joints of the parts.

In a particular embodiment of the panel, said wooden parts are joined by end ends by means of wooden dowels.

In one particular embodiment of the panel, said wood parts are lapped together by end ends and / or by means of a dovetail joint.

The connection of the end faces allows you to get the wooden parts of the desired length without losing the strength of the panels.

In yet another particular embodiment of the panel, said pins

arranged essentially in a checkerboard pattern. In another particular embodiment of the panel, an average of two pins passes through each wooden part.

In one of the preferred embodiments, the fasteners are installed at a distance of from 20 to 200 mm from each other.

In another preferred embodiment, fasteners oriented in one direction are arranged in rows in mutually parallel planes.

In a particular embodiment of the panel, said pins have a slope at an angle of 10 to 70 degrees with respect to the normal. With an increase in the angle of inclination of the pins to the normal, the resistance of the panels to delamination increases with a slight decrease in the strength of the pins on kink.

In one particular embodiment of the panel, said pins and / or said dowels are made of beech.

In yet another particular embodiment of the panel, said pins are provided with longitudinal corrugation. Corrugation simplifies the installation of pins in the holes.

In another particular embodiment of the panel, said pins and / or said dowels are made of birch.

In a particular embodiment of the panel, said dowels connecting the side ends of said parts are oriented substantially in the plane of the layer substantially normal to the direction of the wood fibers.

In one particular embodiment of the panel, said dowels connecting the side ends of said parts are oriented essentially in the plane of the layer at an angle to the direction of the wood fibers.

In yet another particular embodiment of the panel, said dowels

connect at least three of these parts. In another particular embodiment of the panel, said dowels are provided with longitudinal corrugation.

In one preferred embodiment, the fasteners are additionally fixed by driving wedges into their ends.

In a particular embodiment of the panel, the connection of said layers is hardened by hot pressing.

It should be understood that any one or more of the features of the above particular and preferred embodiments may be inherent in the invented panel.

embodiments, provided that they are not mutually exclusive; such combinations of features are also included within the scope of the present invention as possible particular embodiments.

The panels can be used for the manufacture of wall, ceiling and roofing elements, wooden racks and beams. The number, sequence of arrangement of layers, the shape and size of parts in the layers, the orientation of the wood fibers in the layers, the number of fasteners, etc. can be selected by the average specialist on the basis of general knowledge and well-known principles of calculating the static load.

Prefabricated elements from panels can be created by connecting several panels to each other with their ends or at an angle to each other, by any suitable methods of joining wooden parts known in construction,

preferably by means of a tongue and groove connection, a notched overcut, a dovetail and / or bolts.

The essence of the above technical solutions is clearly illustrated by the figures of drawings 1-4 on the example of specific embodiments of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 shows an assembly diagram of a wall panel in perspective. Figure 2 schematically shows a perspective view of a panel reinforced with wooden pins over the entire thickness.

Figure 3 schematically shows a cross section of the aforementioned wall panel along the long axis of the wooden parts in layers 1 and 4.

Figure 4 shows the assembly diagram of the floor panel.

DETAILED DESCRIPTION OF THE INVENTION

The following examples are given only to illustrate the general concept of the invention. Nothing in this section of the description should be construed as limiting the scope of the claims.

As shown in figures 1-3, the wall panel consists of the outer layers of wooden parts 1 and 4 with a width to thickness ratio of about 1 (boards) and the inner layers of wooden parts 2 and 3 with a width to thickness ratio of at least 2 (boards ) The thicknesses of the details of layers 1 and 4 are greater than the thicknesses of the details of layers 2 and 3. The fibers in the inner layers 2 and 3 are crossed at right angles, and the outer layers 1 and 4 are parallel.

The panel is used in such a way that the parts in layers 1 and 4 are oriented vertically (uprights), and the parts in layers 2 and 3 are oriented at an angle of 45 degrees to the horizontal. As shown in figure 2 and 3 beech pins 5 and 6 rapportno placed on the entire thickness of the panel in

openings indicated by dotted lines at an angle of 45 degrees to the plane of the panel. Parts in layers 1-4 are interconnected by means of wooden dowels 7 (not shown) mounted essentially normal to their side ends. The pins 5 are located in mutually parallel planes, and between them also in mutually parallel planes there are pins 6 with a different orientation, while pins 5 and 6 are crossed at an angle of 90 degrees (see FIG. 3). The wall panel has a higher resistance to delamination and increased strength of the joints of parts in layers compared to the prototype. As shown in figure 4, the overlap panel consists of layers of wooden parts 8-12. The width of wooden parts in layers 8 and 9, as well as in layers 11 and 12, is more than two times their thickness (boards); wooden fibers in layers 8 and 9, as well as in layers 1 1 and 12 are crossed at right angles; wide ends (plasti) of the details of layers 8, 9, 1 1 and 12 are oriented in the plane of the panel. The details of layer 10 are joined together by wide ends (along the seam) and have a ratio of width to thickness of at least 2.

The thickness of the details of the layers 10 is greater than the thicknesses of the details of the layers 8, 9, 1 1 and 12. The parts in layers 8-12 are interconnected by means of wooden dowels 15 (not shown),

mounted substantially normal to the side ends. Beech pins 13 and 14 (not shown) are placed rapporto the entire thickness and have a slope of 45 degrees to the plane of the panel. The pins 13 are located in mutually parallel planes, and between them also in mutually parallel planes there are pins 14 having a different orientation, while the pins 13 and 14 are crossed at an angle of 90 degrees.

The overlap panel has a higher resistance to delamination and increased strength of the joints of parts in layers compared to the prototype.

The thickness of the parts of the above-described wall panels and floor panels can vary from 8 mm to 120 mm, depending on static loads, and the diameter of the dowels and dowels, in the range from 8 to 40 mm, depending on the thickness of the joints

elements.

Several panels can be joined together in length and angle into a tongue and groove, by milling for cutting into the overlay, or by means of a dovetail joint.

It should be clear that the average person can use the main distinguishing features of the present invention and make equivalent replacements with the achievement of the technical task; such substitutions are included in the scope of protection in accordance with the following claims.

Claims

CLAIM

1. The panel, reinforced with wooden pins throughout its thickness, containing layers of wooden parts, in which the directions of the wood fibers in at least two of these layers are crossed, in which the side ends of the said parts, in at least one of said layers are joined together by wooden dowels and / or dovetail dowels, and said pins are tilted and oriented in at least two

mismatched directions.

2. The panel according to claim 1, in which the aforementioned wooden parts are linear sawn timber of essentially tangential cut.

3. The panel according to claim 1, which contains at least one layer of wooden parts with a cross-sectional height less than the thickness, joined together by wide ends.

4. The panel according to claim 1, which contains at least one layer of wooden parts with a cross-sectional height less than the thickness, joined together by narrow ends.

5. The panel according to claim 1, which contains at least one layer of wooden parts with essentially the same height and width of the cross section.

6. The panel according to claim 5, in which the wood fibers in the said at least two layers of wooden parts with essentially the same height and width of the cross section are oriented in essentially the same direction.

7. The panel according to claim 6, in which between said two layers of wooden parts with substantially the same height and width of the cross section at least one of said layers of parts with crossed wood fibers is placed.

8. The panel according to any one of claims 1 to 7, in which said wooden parts of at least two adjacent layers are staggered.

9. The panel according to any one of claims 1 to 7, in which the surface of the layers are provided with rows of heat-insulating grooves.

10. The panel according to any one of claims 1 to 7, in which the lateral ends of said wooden parts are lapped together.

11. The panel according to any one of claims 1 to 7, in which the lateral ends of the said wooden parts are provided with longitudinal locking protrusions and troughs of the reciprocal form.

12. The panel according to any one of claims 1 to 7, in which said wooden parts are joined by end ends by means of wooden dowels.

13. The panel according to any one of claims 1 to 7, in which the said wooden parts are joined by the end ends of the lap and / or by the dovetail connection.

14. The panel according to any one of claims 1 to 7, in which the mentioned pins are located essentially in a checkerboard pattern.

15. The panel according to any one of claims 1 to 7, in which on average two pins pass through each wooden part.

16. The panel according to any one of claims 1 to 7, in which said pins have an inclination at an angle of 10 to 70 degrees relative to the normal.

17. The panel according to any one of claims 1 to 7, in which said pins and / or

said dowels are made of beech.

18. The panel according to any one of claims 1 to 7, in which said pins are provided with longitudinal corrugation.

19. The panel according to any one of claims 1 to 7, in which said pins and / or said dowels are made of birch.

20. The panel according to any one of claims 1 to 7, in which said dowels connecting the side ends of said parts are oriented essentially in the plane of the layer substantially normal to the direction of the wood fibers.

21. The panel according to any one of claims 1 to 7, in which said dowels connecting the side ends of said parts are oriented essentially in the plane of the layer at an angle to the direction of the wood fibers.

22. The panel according to any one of claims 1 to 7, in which said dowels connect at least three of these parts.

23. The panel according to any one of claims 1 to 7, in which said dowels are provided with longitudinal corrugation.

24. The panel according to any one of claims 1 to 7, in which the connection of the said layers is hardened by hot pressing.

25. The panel according to any one of claims 1 to 7, in which the directions of the mentioned fibers are crossed at an angle from 30 to 90 degrees.