EP2946044A1 - Lightweight panel and method for the production thereof - Google Patents
Lightweight panel and method for the production thereofInfo
- Publication number
- EP2946044A1 EP2946044A1 EP14700656.3A EP14700656A EP2946044A1 EP 2946044 A1 EP2946044 A1 EP 2946044A1 EP 14700656 A EP14700656 A EP 14700656A EP 2946044 A1 EP2946044 A1 EP 2946044A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- boards
- grooves
- layer
- layers
- lightweight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 16
- 238000000034 method Methods 0.000 title claims description 9
- 230000001154 acute effect Effects 0.000 claims abstract description 11
- 239000000853 adhesive Substances 0.000 claims description 25
- 230000001070 adhesive effect Effects 0.000 claims description 25
- 229920000642 polymer Polymers 0.000 claims description 12
- 229920002522 Wood fibre Polymers 0.000 claims description 10
- 238000003801 milling Methods 0.000 claims description 10
- 239000002025 wood fiber Substances 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 8
- 239000004848 polyfunctional curative Substances 0.000 claims description 6
- 239000007799 cork Substances 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000009966 trimming Methods 0.000 claims description 2
- 210000002105 tongue Anatomy 0.000 claims 8
- 239000011810 insulating material Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 143
- 244000144992 flock Species 0.000 description 12
- 238000005452 bending Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 239000002023 wood Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 210000003746 feather Anatomy 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000005445 natural material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000000844 transformation Methods 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
- E04C2/12—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of solid wood
Definitions
- the invention relates to a lightweight board according to the preamble of claim 1, to the use of lightweight panels for creating a house body according to the preamble of claim 10 and to a method for producing a lightweight board according to the preamble of claim 11.
- the present invention is in the field of new lightweight building boards based on wood, which are formed with a plurality of flatly bonded layers, which are aligned with flocks of laterally juxtaposed with each other in a same layer, but in different layers with different angles to each other , bounded on their side edges and provided with a plurality of grooves boards are formed and which for furniture, but especially for the establishment of simple and inexpensive, especially further sound and / or noise insulation, in a simple way with low tool and personnel costs quickly Buildable buildings of various kinds, such as houses, cottages, stables, exhibition halls and the like. Can be used.
- WO 95/32082 A1 discloses a wooden construction element having layers bonded to one another, wherein the layers are constructed from boards which each have a grooving on surfaces facing one another.
- the boards of two adjacent layers are aligned transversely and diagonally to each other. Accordingly, the grooves of these two layers are aligned diagonally to each other.
- Wooden components are insufficiently elastic and do not have high bending strength action, so that with one-sided clamping the load capacity until breaking is only small.
- the object of the invention is now to find a simple solution with which tension-free as possible lightweight panels with sufficiently high elasticity and high residual strength can be provided with strong deflection.
- the lightweight panels in buildings to earthquake vulnerable places should be used.
- the object is achieved by a lightweight board with the features of claim 1, or the use of this lightweight board for creating a house body according to claim 10 and by a method for producing a lightweight board according to claim 1 1.
- the dependent claims describe alternative or advantageous embodiments, which solve further tasks.
- the boards at least one layer of a middle layer of the lightweight board on both sides or in both main surfaces a first and a second share of each other in angles ( ⁇ ) of 5 to 100 °, preferably 7 to 20 °, are provided intersecting grooves, the grooves of each share each other in parallel. This ensures that no long webs in the fiber direction of the boards can be formed on the outsides of these layers. Of the short repeatedly interrupted web areas do not stress, even in large moisture differences in the lightweight panel.
- the adhesive joints are narrow areas in which abut the short webs of the two connected layers projecting between the grooves .
- There is no large area glue layer which could undesirably restrict moisture permeability perpendicular to the large outer surface of the lightweight board.
- the boards of at least one layer are laterally bonded to one another by tongue and groove on their side flanks.
- These connections between the adjoining boards of a layer ensure that the layer does not break along the connections between the boards at a high bending load, but that the introduced bending energy is absorbed by the above-described deformations in the webs.
- the different orientation of the boards of different layers also contributes to the strength.
- the tongue-and-groove connections between the boards of a layer have the additional advantage that the layers can be loaded more quickly after the side flanks of the boards have been glued and the boards of the layer run flush along a plane.
- the present invention is a multi-layered, in its basic form - preferably elongated - rectangular lightweight board based on wood with flat bonded together layers of flocks of mutually parallel, grooves having laterally bonded boards.
- the new multi-layer lightweight board is characterized in particular by having at least two - with the basic shape of the lightweight board matching shape, optionally via an intermediate layer arranged between them, surface-bound together - each with crowds of each at an acute angle of 25 to 60 ° , in particular from 30 to 45 °, aligned to the respective longitudinal side edges of the respective layer or the lightweight board, formed on both sides laterally via tongue and groove form-fitting bound together elongated boards,
- the lightweight panel at least at its two long, mutually parallel longitudinal side flanks each having at least one Ansch Stammungs-groove and with her form gleich-cooperable connecting spring for a two-sided positive connection of the same type lightweight panels.
- the structural panel can, as just described, in the simplest cases have only two layers of flocks of each having angles to each other in certain positive and negative, same absolute size angles skewed arranged grooved boards, wherein it is essential that not only a (first) crowd of each other parallel grooves are provided on the boards, but another set of mutually parallel grooves, which intersect with the grooves of the first family, wherein it has proved to be favorable when the crossing angles of the grooves have the above values.
- a layer e.g. sound insulation and / or insulating insulating layer, in particular of a natural material, such as cork, and that the two said layers of building boards further, preferably via an intermediate layer arranged between them, in particular also of a sound and heat insulating natural material, such as. Cork exists, are bound together.
- lightweight construction boards according to claim 2 are particularly preferred, the layers of which are formed with boards arranged so that they are skewed, which each have a family of grooves, but which are intentionally substantially in line Direction of the wood fiber, ie parallel to the side edges of the boards are aligned and which are each crossed by a family of other parallel grooves.
- a building board basically as described above is configured such that at least one further layer is bound on both sides to the at least one layer of the middle layer mentioned in claim 1, wherein in the further layers the laterally bonded, elongate boards are aligned at a second acute angle (- ⁇ , + ⁇ ) to the longitudinal side flanks of the lightweight board and the second acute angle (- ⁇ ) of the boards to the adjacent layer of the Central layer bonded layer has a size negative to the size of the first angle (a) of the boards of this layer and has a different or equal angular amount. Furthermore, it is particularly advantageous if the new lightweight panel comprises a central layer with three layers.
- the bond between the layers is preferably achieved with adhesive bonds between the adjoining faces of the paralellogrammflambaigen islands. With the above-mentioned relationships between the areas claimed by the grooves and the sum of the areas of the islands, it is ensured that the adjoining faces are sufficiently large for the required bond. Because the adhesive bonds are limited to the adjoining faces, a good moisture exchange can be ensured by the lightweight board. Nowhere is there a coherent adhesive layer acting as a moisture barrier.
- the lightweight panels according to the invention in which a family of grooves on each major surfaces of each of the laterally bonded boards of individual or all layers of lightweight construction plate is formed with mutually parallel grooves, which one with the course of the wood fibers of the boards substantially have compliant longitudinal extent, and which "fiber conforming" arranged grooves are crossed by the grooves of each other Nutenschar at an angle.
- a layer of boards is arranged in at least one outer surface of the lightweight board, which only on the directed towards the interior of the lightweight board main surface at least a bevy of grooves, but preferably two at an angle of 5 ° to 100 °, in particular 7 to 20 °, crossed flocks of grooves.
- a group of these grooves has a longitudinal extent substantially conforming to the course of the wood fibers of the boards. At their directed against the exterior of the lightweight panel main surface, the boards along both long side lines milled edge areas, or chamfers.
- milled edge areas or chamfers run as small channels diagonally downwards and can thus deduce the rainwater striking the respective board controlled to the side, which a different wetting and thus a different growth or a different discoloration of the upper and lower portions of a wall prevented.
- a substantial further object of the present invention is a plate-like lightweight construction element, in particular a lightweight wall or ceiling element and in particular a house body formed with a plurality of these elements, which is characterized in that it or he is formed with a plurality of - as described above - via their side edges by means of connecting grooves and springs positively bonded together lightweight panels, said Anaptitati means of at least one, but preferably more, for example arranged spaced apart, and optionally intersecting, which form the body of the house forming lightweight components of side walls, partitions, bottom wall and / or ceiling or roof surfaces connecting and exciting, adjustable in their clamping force to a few, preferably up to 8, centimeters stretchable strap or tensioning bands is accomplished.
- clamping elements themselves are concerned, it is provided in one embodiment that they are formed with a strong spring interconnecting the two band ends which, in particular in the event of fluctuations, e.g. As a result of earthquake events, cause the house body is not damaged, since a certain flexibility and mutual displacement of the wall elements is given due to the targeted limited elasticity of the straps.
- a very significant advantage of the present invention is that all tools necessary for the preparation of the boards and thus the components, such as machines and the work steps to be performed are so simple that they can be performed by just trained workers and the mechanical effort on a Minimum is reduced.
- the individual boards are superficially smoothed or planed and provided on both sides with positively co-operable grooves and springs that then
- the boards thus provided on both sides with groups of oblique grooves parallel to one another are then also laterally adjacent to one another by the same or another feed track, but at an equally large but negative or inverted angle between two pairs on both sides of the first cut Be grooves crossing, mutually parallel, different oblique grooves intersecting groove-milling rollers are passed through that
- a polymer adhesive is applied to one of the main surfaces of the layers to be bonded to each other and a polymer hardener is applied to the respective other main surface thereof, and thereafter
- the boards provided for the production of the layers led parallel to the direction of a feed path through this feed path, surface smoothed in a single operation, in particular planed, in their side edges each positively cooperable form-fitting elements, namely spring and groove, incorporated and in their two-sided or two major surfaces each a set of mutually parallel, to the side edges of the boards also parallel, or the wood fiber course in the boards correspondingly extending, optionally with an approximately wave-like course over the width of the boards different groove depths, grooves 3, incorporated or milled become,
- connection grooves and springs either congruent, or preferably in each case at least laterally offset from each other in parallel, layered on top of each other and by applying pressure, for example
- the manufacture can be carried out directly on site, e.g. in each case in a disaster or earthquake area, without much effort with only briefly trained forces without the need of skilled workers to be carried out, which is particularly beneficial for use in countries with low resources and in particular with increased or high risk of natural events.
- Fig. 1 in exploded view four layers of laterally adjacent boards with both sides arranged, intersecting grooves, the
- Fig. 3 shows the section through a specially designed building board with grooves located on one of its two major surfaces with different depths of their groove bases
- Fig. 3a shows the section through a differently designed board
- the Fig. 4 shows a part of a lightweight board according to the invention, formed with four layers of contiguous boards, where there are shown the grooves and springs for their assembly with other lightweight panels, the
- Fig. 5 shows schematically the assembly of the lightweight panels according to the invention to a house body and the cohesion of the same or the same by means of a tension band to be used according to the invention
- Fig. 5a shows schematically the "girding" of a house with several straps
- FIG. 6 schematically shows a new and in itself relatively simple process for the production of the grooved boards and the new lightweight building boards formed therefrom according to the invention
- Fig. 7 shows a comparatively even simpler, preferred variant of the manufacturing method according to the invention
- Fig. 8 shows a possible, specifically preferred embodiment of the present invention provided tension band
- Fig. 10 is a schematic representation of the glue surfaces between the adjacent webs of two composite layers according to FIG. 9, the
- FIG. 1 1 a to 1 1 e perspective views of layers of a lightweight panel
- FIG. 12 and 13 are perspective views of lightweight panels with three or five layers according to FIG. 11 a to 1 1 e
- Fig. 1 shows an exploded view of four layers 01, 02, 03, and 04 of a building panel 100 according to the invention, these layers are formed with boards 2, which obliquely to the side edges or side edges of said
- Layers or the building board 100 are arranged and on both sides with intersecting grooves 3, 3 'are provided.
- the two main surfaces of said layers and their boards 2 have the reference numerals 205 and 205 'and a total of z.
- the arrangement of four layers shown in FIG. 1 form a lightweight building board 100 according to the invention, in which case the two layers 01 and 02 form a middle layer MI and it can further be provided that an intermediate layer 001 between these two layers 01 and 02 , z. B. cork, and where further course also between the layers 03 and 01 and between 02 and 04, such an intermediate layer may be arranged and further course on the outside so to the front outer surface 205 of the building board 03 and the rear outer surface 205th 'the building board 04 each have a further (outer) layer, eg for applying a plaster, or also an insulating layer, e.g.
- FIG. 2 shows - with otherwise identical reference numerals - one of the boards 2 used in the new lightweight board 100, which in side by side form one of the layers 01 to 04 in droves. It shows how in each case the side flank surfaces 200, 200 'of the boards 2 are provided with a right-triangular groove 202 and a left-hand spring 202', which fits into this groove 202 in a form-fitting manner, with both sides 205 205 'intersecting each other Grooves 3 3 'are provided.
- the grooves 3, 3 ' preferably have rectangular cross-sectional shape and form mutually parallelogram-like or rhombic islands 30 with the acute crossing angles corresponding to acute groove angles ⁇ . It should be noted at this point that, of course, the boards 2 not only along their side edges 200, 200 ' positive grooves and springs 202, 202 'may have, but also at their short, unspecified end edges.
- Fig. 3 shows - with otherwise constant reference numerals - the cross section through one of the total layers 01 to 04 forming boards 2, in which case the rectangular cross-section having grooves 3, 3 'both on the top and on the bottom of the board 2 are shown.
- the arranged on the bottom 205 'grooves 3 or 3' are formed as a family of parallel to the longitudinal side edges and parallel aligned grooves and they are crossed by a respective group of - not shown - grooves.
- the grooves 3 or 3 'of the bottom 205' have mutually different depths tn, wherein these groove bases are formed continuously undulating at different depths across the board 2.
- FIG. 3a shows - with otherwise identical reference numerals - a preferred embodiment of each other and the side edges 200, 200 'of the boards 2 of the layers 01 to 04 in the two major surfaces 205, 205' cut grooves 3, wherein the groove depths tn the matched upper and lower grooves, across the width of the board 2 are different.
- These flocks of board side parallel grooves 3 are cross-sectionally intersected by not shown flocks of mutually parallel grooves 3 'arranged on each side 205, 205', these oblique grooves 3 'being cut on both sides 205, 205'. of the board 2 also parallel to each other.
- FIG. 4 shows the upper area of a lightweight building board 100 according to the invention with a total of four layers 01 to 04 bonded to one another, as indicated in one of the layers, with obliquely oriented boards 2 bound together laterally, these boards 2 on both sides of the intersecting grooves 3 3 'have.
- the layers 01 to 04 are arranged offset laterally relative to one another and in this simple manner form at least one connecting groove 102, and spring 102 ', etc., whereby these layers and thus the building board 100 are extremely stable via these form-fitting groove and spring connections can be connected or connected to the two next, laterally adjacent laterally identical structural panels 100, without a lateral bonding of the same to each other being necessary or desired.
- FIG. 5 shows - with otherwise identical reference numerals - a part of a building 10, which is formed from the mutually positively closed elongated lightweight panels 100, which are formed with families of obliquely arranged in their extension boards 2, and these boards on both sides have mutually crossing grooves 3, 3 '.
- the structure 10 here in approximately square square shape - not by lateral bonding of the building boards 100 together, but by here only one, placed around the building 10, specifically loaded with clamping tension band 150, which in turn with a spring his Course is equipped that ensures that a certain shift, eg caused by a growth or shrinkage of the wood due to changing moisture or - in the case of earthquakes - some slight displacement of the building boards 100 against each other, without causing the structure 10 disturbed as a whole or even destroyed.
- a certain shift eg caused by a growth or shrinkage of the wood due to changing moisture or - in the case of earthquakes - some slight displacement of the building boards 100 against each other, without causing the structure 10 disturbed as a whole or even destroyed.
- Fig. 5a shows schematically a tensioning system according to the invention of a saddle roofed house, wherein three tensioning straps 150, e.g. vertically over the bottom plate 81, two opposing sidewall elements 82 and the two roof surface elements 83 are laid and tensioned and two straps 150 hold the sidewalls, with each of the individual, over-edge strapping sections inserted for each of the planar elements of the house, depending on expected loads, eg in the event of quake events, individually tension-adjustable clamping element 9 is provided.
- FIG. 1 shows schematically a tensioning system according to the invention of a saddle roofed house, wherein three tensioning straps 150, e.g. vertically over the bottom plate 81, two opposing sidewall elements 82 and the two roof surface elements 83 are laid and tensioned and two straps 150 hold the sidewalls, with each of the individual, over-edge strapping sections inserted for each of the planar elements of the house, depending on expected loads, eg in
- step IIa a group of laterally adjoining, obliquely formed at a positive angle to the longitudinal orientation of a feed path (6), in a step I previously on both sides laterally each with form-fitting tongue and groove boards (2) continuously by a Nutenfräs noise (61) with two, preferably simultaneously, in both major surfaces ( 205, 205 ') of the boards (2) mutually parallel grooves (3) cutting milling rollers (62, 62') is guided, that in a further step
- Fig. 7 shows - with otherwise constant reference numerals - schematically the particularly preferred within the scope of the invention, workload, steps and equipment-saving process variant for the production of the also particularly preferred new lightweight elements 100, as disclosed in claim 2, wherein is provided that
- both sides grooved (3) boards (2) in the same Angle, laterally adjacent to one another via a further feed path (6 ') at the (mentioned) angle (a) between two groove milling drills (62) intersecting grooves (3') crossing at an angle between the side edges of the board (3) 62 ') are passed,
- a polymer adhesive is applied to one of the main surfaces (205, 205 ') of the layers to be bonded to each other and a polymer hardener is applied to their respective other main surfaces (205', 205), and thereafter
- FIG. 8 shows one of the possibilities for the construction of the tensioning elements 9 of the tensioning straps 150 with the aid of which the tensile force, which can be set individually about a structure 10 via its edges and surfaces to tensioning straps 150, is: At the two ends of the individual sections of the clamping band 150 each have a respective spring housing 90 each bound, for example by riveting or welding.
- each of the clamping bolts 94,94' are in the two connected to the housing 90 clamping nuts 92 with Right and left-hand threads 941, 942 screw-threaded and so the springs 93 located in the spring housing 90, the tension band (150) more or less tension.
- 9 shows a section of a layer 01 of the middle layer MI, wherein sections of two boards 2 on side flanks 200, 200 'are positively connected with groove 202 and spring 202'.
- the boards 2 of this layer 01 are provided in both main surfaces 205 (205 ') each with a first and a second family of grooves 3, 3' intersecting at angles ⁇ , the grooves of each group extending parallel to one another and preferably the distances and Widths of the grooves for each share each have a substantially constant value.
- the first set of grooves 3 are aligned parallel to the side flanks 200, 200 'of the boards 2.
- the width and in particular the length of these islands 30 depends on the distance between adjacent grooves 3, 3 'of each of the two shares and on the angle ⁇ between the orientations of the two sets of grooves 3, 3'.
- the length of the islands 30 increases, with the angle between the orientation of the greatest length of the islands and the side flanks 200, 200 'decreasing.
- the islands appear as web portions which extend approximately in the direction of the side flanks 200, 200 '.
- a desired length of the web sections can be adjusted by the choice of the angle ⁇ .
- Fig. 10 shows black-colored connecting adhesive surfaces or adhesive bonds 30a which arise when the surfaces of two layers 01, 02 are connected according to FIG. 9 with a predetermined relative orientation to each other with adhesive, wherein the adhesive bonds 30a are shown only where Regions of islands 30 of the two layers 01, 02 are in contact with each other via the adhesive surfaces.
- the second layer 02 is rotated against the first layer 01 by an angle 2a, correspondingly lies between the side edges 202 of the first layer 01 and the side edges 202 of the second layer 02 and the angle 2a.
- the bisector drawn at angle 2a corresponds to the axis A1, which runs parallel to the longitudinal side flanks of the lightweight board.
- the boards 2 of the first and second layers 01, 02 are aligned at the first acute angle -a or + to the axis A1, or to the longitudinal side flanks of the lightweight board.
- the amount of the angle a 52 ° and thus the angle between the boards 2 of both layers 01, 02 is 104 °.
- the directions of the largest lengths of the islands 30 of both layers 01, 02 can be chosen so that they are substantially perpendicular or transverse to each other. At the selected length, the islands 30 of the first layer 01 span substantially eight islands 30 of the second layer 02.
- the adhesive bonds 30a form together the islands of both layers 01, 02 a kind of connection grid whose connection lengths can be selected over the length of the islands 30 ,
- the lightweight board Around the narrow adhesive bonds 30a in the short islands 30 or webs, there are the cavities formed by the grooves 3, 3 '. If bending forces act on the lightweight board, they do not lead to the sudden breaking of the lightweight board when it exceeds a limit of elasticity, but become local connected islands 30 in the compressible cavities of the grooves 3, 3 'transformed. These small internal transformations and breaks or entanglements can absorb a lot of energy without the lightweight panel breaking. Therefore, the lightweight panel still has a high remaining bending strength, even after a high absorption of deformation energy and a concomitant large deflection.
- FIGS. 11a to 11e show boards 2 for three or five layers of a lightweight board 100 according to FIGS. 12 and 13. All boards 2 comprise a groove 202 and a spring 202 'on the corresponding side flanks and thus for all Layers of the lightweight building board 100. The boards 2 adjoining layers are each aligned at an angle 2a to each other.
- Fig. 1 1 a and 1 1 e each show a board 2 for each outer surface of the lightweight panel 100, said boards 2 only on the directed against the interior of the lightweight panel 100 main surface two intersecting flocks of grooves 3, 3 'include.
- a family of grooves 3 has a longitudinal extent substantially conforming to the course of the wood fibers or the side flanks of the boards 2. At their directed against the exterior of the lightweight panel 100 main surface, these boards 2 along both long side lines milled edge regions or chamfers 2a on. 1 1 b to 1 1 d each show a board 2 for one layer of the middle layer MI of a lightweight board 100. These boards 2 comprise on both main surfaces two intersecting groups of grooves 3, 3 '. Depending on a set of grooves 3 has a with the course of the wood fibers, or the side edges of the boards 2 substantially compliant longitudinal extent.
- the lightweight building board 100 according to FIG. 12 is constructed from three and those according to FIG. 13 from five layers with the boards 2 described above.
- the middle layer MI of the lightweight building board according to FIG. 12 comprises only one layer and that according to FIG. 13 comprises three layers.
- the chamfers 2a run as small grooves obliquely to the longitudinal side edges of the lightweight components.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Panels For Use In Building Construction (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00162/13A CH707514A2 (en) | 2013-01-16 | 2013-01-16 | Lightweight panel and procedures for their preparation. |
PCT/EP2014/050707 WO2014111425A1 (en) | 2013-01-16 | 2014-01-15 | Lightweight panel and method for the production thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2946044A1 true EP2946044A1 (en) | 2015-11-25 |
EP2946044B1 EP2946044B1 (en) | 2017-05-17 |
Family
ID=49989739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14700656.3A Not-in-force EP2946044B1 (en) | 2013-01-16 | 2014-01-15 | Lightweight panel and method for the production thereof |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2946044B1 (en) |
CH (1) | CH707514A2 (en) |
RU (1) | RU2640624C2 (en) |
WO (1) | WO2014111425A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10464294B2 (en) | 2015-10-21 | 2019-11-05 | Freres Lumber Co., Inc. | Wood panel assemblies and methods of production |
US10131119B2 (en) | 2015-10-21 | 2018-11-20 | Freres Lumber Co., Inc. | Laminated wood product |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2469279A1 (en) * | 1979-11-14 | 1981-05-22 | Degut Andre | Composite wood panel for furniture - has layers of tongued and grooved boards bonded with alternate grains mutually orthogonal |
DE9408382U1 (en) * | 1994-05-20 | 1994-08-04 | Egle, Wilhelm, 79733 Görwihl | Wooden building element with wooden layers |
AT505954A1 (en) * | 2005-02-04 | 2009-05-15 | Berger Johann | BOARD OD. DGL. |
RU92053U1 (en) * | 2009-10-30 | 2010-03-10 | Сергей Евгеньевич Дорожкин | WOODEN MULTI-LAYERED PANEL |
AT509156B1 (en) * | 2009-11-23 | 2012-09-15 | Lb Engineering Gmbh | WOOD WALL STONE |
CH703133A2 (en) * | 2010-05-12 | 2011-11-15 | 3A Technology & Man Ag | Shaped body with Balsahölzern and methods for their preparation. |
-
2013
- 2013-01-16 CH CH00162/13A patent/CH707514A2/en not_active Application Discontinuation
-
2014
- 2014-01-15 RU RU2015125903A patent/RU2640624C2/en not_active IP Right Cessation
- 2014-01-15 WO PCT/EP2014/050707 patent/WO2014111425A1/en active Application Filing
- 2014-01-15 EP EP14700656.3A patent/EP2946044B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP2946044B1 (en) | 2017-05-17 |
CH707514A2 (en) | 2014-07-31 |
WO2014111425A1 (en) | 2014-07-24 |
RU2640624C2 (en) | 2018-01-10 |
RU2015125903A (en) | 2017-02-22 |
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