EP3741921B1 - Élément de panneau en bois composé d'une pluralité de madriers - Google Patents

Élément de panneau en bois composé d'une pluralité de madriers Download PDF

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Publication number
EP3741921B1
EP3741921B1 EP19175575.0A EP19175575A EP3741921B1 EP 3741921 B1 EP3741921 B1 EP 3741921B1 EP 19175575 A EP19175575 A EP 19175575A EP 3741921 B1 EP3741921 B1 EP 3741921B1
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EP
European Patent Office
Prior art keywords
planks
panel element
element according
stiffening elements
wood panel
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EP19175575.0A
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German (de)
English (en)
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EP3741921A1 (fr
Inventor
Herbert Niederfriniger
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Holzius GmbH
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Holzius GmbH
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Priority to SI201930144T priority Critical patent/SI3741921T1/sl
Priority to PL19175575T priority patent/PL3741921T3/pl
Priority to EP19175575.0A priority patent/EP3741921B1/fr
Publication of EP3741921A1 publication Critical patent/EP3741921A1/fr
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Publication of EP3741921B1 publication Critical patent/EP3741921B1/fr
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    • 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
    • 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
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/40—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of a number of smaller components rigidly or movably connected together, e.g. interlocking, hingedly connected of particular shape, e.g. not rectangular of variable shape or size, e.g. flexible or telescopic panels

Definitions

  • the present invention relates to a wooden panel element made at least largely of wood and its use.
  • Wood is one of the traditional and particularly widespread building construction materials. It is experiencing a renaissance in new buildings too, with regard to the CO 2 issue, the avoidance of unusable waste, with regard to its good insulation properties and good load-bearing capacity with low weight and, above all, due to construction-biological aspects. In addition to the traditional forms of construction, such as the block house construction, this also applies to prefabricated houses and new constructions from, to a certain extent, prefabricated larger wooden panel elements for building walls or building ceilings.
  • the ridge strips have dovetail profiles, in any case cross-sectional profiles with undercuts to connect the two layers, and can, for example, be inserted into grooves of the planks when the ridge strips are very dry and clamped to the final moisture level by subsequent swelling.
  • CH 692 391 A5 with a plate-shaped wall, floor or roof element made of four board layers nailed or dowelled together, with the longitudinal direction of the boards in one of the layers being perpendicular to the other layers.
  • the DE 23 40 101 A a building board for prefabricated wooden houses made of a single layer of wooden planks with transverse wedges.
  • FR 2 337 018 A also a building board made of wood, namely from a single layer of parallel wooden planks, which are connected on both flat sides by transversely but slightly sloping strips embedded in grooves.
  • the present invention is based on the object of proposing further improvements to wooden panel elements.
  • the invention is directed to a wooden panel element according to claim 1.
  • wood panel elements are concerned with a multiplicity of elongated wooden planks, the wood fiber direction running essentially parallel to the longitudinal direction.
  • the wooden planks are arranged parallel to one another in at least two layers, which correspond to a main plane of the wooden panel element, so that the longitudinal direction is parallel to the main plane.
  • Cross-connecting means are also provided to connect adjacent wooden planks to one another in the layers.
  • cross-connecting means can in particular be ridges in the sense of the cited applications, i.e. elongated strips (preferably made of wood) which encompass more than two adjacent wooden planks and which engage positively in corresponding grooves in the wooden planks with an undercut profile (transverse to their longitudinal direction).
  • ridges in the sense of the cited applications, i.e. elongated strips (preferably made of wood) which encompass more than two adjacent wooden planks and which engage positively in corresponding grooves in the wooden planks with an undercut profile (transverse to their longitudinal direction).
  • it can be a dovetail profile if the ridge strips are in the interface between adjacent wooden plank layers, or a trapezoidal profile if the ridge strips, for example, only connect wooden planks of one layer and should be flush with the corresponding surface of the layer.
  • the exemplary embodiments illustrate this.
  • the cross-connection means can, however, for example also be threaded rods penetrating the wooden planks of a respective layer, in particular wooden threaded rods.
  • the invention is not restricted to the material wood with regard to the cross-connecting means, although this is preferred.
  • the wooden panel elements have different advantageous properties and can in particular be efficiently produced and, if desired, for the construction of z. B. building parts are used.
  • the invention sees further potential for improvement with regard to the deformation stiffness of the wood panel elements.
  • additional stiffening elements are accordingly used between adjacent planks, which engage in grooves in the wooden planks. These stiffening elements are preferred during manufacture in the Grooves are inserted and are therefore received in a corresponding direction, that is to say in a direction perpendicular to the main plane, in the respective groove without interlocking.
  • This freedom from undercuts preferably also applies to a further direction, namely parallel to the main plane. If then in this direction the groove z. B. something goes beyond the corresponding length of the respective stiffening element or is designed continuously at all, the stiffening elements can also be moved individually into the grooves and z. B. can be adjusted in their position.
  • Such stiffening elements are preferably provided between adjacent wooden planks of a respective layer, that is to say connect these adjacent wooden planks to one another. Then they make it more difficult for the wooden planks to move relative to one another along the longitudinal direction of the wooden planks, or they block this movement entirely. In this way, the rigidity described can be improved.
  • the exemplary embodiments illustrate this.
  • stiffening elements can also connect adjacent wooden planks from different layers, namely adjacent layers, to one another. Then they can also make it difficult or prevent the shifting of wooden planks of different layers against each other or of the layers as a whole against each other. In principle, this embodiment can also be present without the aforementioned connection between adjacent wooden planks within the same layer, which is, however, less preferred.
  • a preferred shape for the stiffening elements is cuboid, that is, rectangular in different sectional planes. This offers the already mentioned undercut-free profiles and is easy to manufacture. The same goes for the grooves.
  • the cross-connection means are shaped more complex, so z. B. with a trapezoidal or dovetail profile, as a threaded rod or the like.
  • stiffening elements consists of wood-based materials, preferably of (grown) wood. It is further preferred that the grain direction is approximately perpendicular to the direction of the cross-connecting elements and parallel to the plane of the plate and to the wooden planks. As the exemplary embodiments further illustrate, "end-grain blocks" in particular come into consideration. However, other wood-based material elements should also be considered, for example pieces sawn from multilayer boards. Overall, such material is strong, inexpensive and remains in the desired material class "wood”.
  • the stiffening elements preferably have a rather limited length extension, but they can still connect more than two adjacent wooden planks. Preferably, however, the stiffening elements each connect exactly two adjacent wooden planks with respect to the respective direction, that is to say within one layer. In an embodiment with a plurality of wooden plank layers and stiffening elements connecting these layers, the same statement applies analogously in the direction perpendicular thereto, i.e. with regard to the wooden planks of different layers, so that a stiffening element can then preferably also connect exactly four adjacent wooden planks, two per layer .
  • a preferred embodiment of the stiffening elements different from the wooden elements are metal profile pieces including metal pipe pieces, in particular cuboid metal profile pieces, such as pipe or strip pieces with a rectangular profile.
  • metal profile pieces including pipe pieces, as I said
  • Such metal profile pieces can remain very slim and still have high strength.
  • the necessary grooves can accordingly be kept small so that the wooden planks are not weakened much.
  • it can also be practical to have longer metal strips over a larger number of adjacent ones Let wooden planks run through in one layer. This also makes production easier because only one insertion process is required for each metal part.
  • cross-connecting means in the sense of the ridge strips already described in the cited prior art or in the sense of the also already mentioned (wooden) threaded rods are provided in addition to the stiffening elements (or vice versa) and preferably form positive connections between adjacent wooden planks.
  • neighboring wooden planks are preferably in direct contact with each other (except for the usual fluctuations due to moisture fluctuations or drying processes), which applies on the one hand to the neighboring wooden planks within one layer and additionally or alternatively to the wooden planks in neighboring layers.
  • the adjacent wooden planks can have profiles on the touching surfaces within the same layer, which further increases the rigidity.
  • connecting means can also be used with respect to a direction perpendicular to the plane of the panel, that is to say in particular for the (additional) connection of a plurality of wooden plank layers to one another.
  • Conventional metal screws are particularly suitable for this. However, such measures are only indicated if the requirements are particularly high.
  • Figures 1 to 4 show various embodiments of the invention in perspective view and in the case of Figures 1 and 2 with parts of wooden planks omitted for illustration purposes;
  • Figure 5 shows an illustrative example to illustrate a variant for cross-connecting means, but this example does not belong to the invention because it has only one layer of wooden planks; the Figures 6 and 7 show sectional views transversely to the longitudinal direction of the wooden planks, specifically to the exemplary embodiments from FIG Figures 2 and 1 .
  • Figure 1 shows a first exemplary embodiment of a panel element according to the invention with wooden planks 1 which are vertically oriented in this illustration and whose fiber direction is also essentially vertical.
  • the plate element shown continues both to the right behind and to the left in front in width; Furthermore, the wooden planks 1 are longer.
  • the section shown already contains two cross-connecting means already known per se from the cited prior art, namely ridge strips 2. These are transverse wooden strips with also transverse fiber direction and, perpendicular to this, a dovetail profile.
  • These ridges 2 are located in an interface between two layers of wooden planks 1. The front layer is partially cut away at an angle, which is used exclusively for better visibility of the inner structure of the plate element, so it is purely graphical.
  • the ridge strips 2 are preferably inserted without metallic connecting means and also without glue, specifically in a very dry state of the ridge strips 2 and the wooden planks 1 inserted along the longitudinal direction of the ridge strips 2. After a return to normal humidity, the ridges 2 are effectively and permanently jammed. They thus hold the wooden planks 1 together within a layer and in the fall In this exemplary embodiment, the wooden planks of adjacent layers, here the only two layers, are attached to one another.
  • Figure 1 a profiling of the outer surfaces of the wooden planks 1 abutting one another within a respective wooden plank layer, namely along with it grooves and elevations running through the longitudinal direction, which are complementary to one another and to that extent interlock in the assembled state of the wooden panel element.
  • This profiling serves to improve the windproofness, particularly in the case of building wall elements.
  • it can also increase the strength with regard to a relative offset of adjacent wooden planks relative to one another (in their longitudinal direction), and that already in the glue-free state due to an enlarged friction surface and, of course, in the glued state, which is also conceivable.
  • a stiffening element 3 namely a wooden strip 3 with a parallelepiped shape, which, like the ridge strips 2, is inserted into respective grooves of the wooden planks 1 of the two layers.
  • the wooden strip 3 has an undercut-free shape, namely a rectangular profile. It can thus be simply inserted into the groove after the wooden planks 1 have been put together in one layer (and the groove has been produced).
  • the main fiber direction of the wooden strip 3 is vertical, that is, as in the wooden planks 1 and different from the ridge strips 2.
  • the stiffening element 3 in the groove z. B. it is also not necessary in this invention (although not excluded), the stiffening element 3 in the groove z. B. to brace by inserting in a particularly dry state and subsequent swelling. However, the stiffening element should sit in the groove 3 without play and fit. This is because it serves to block or make more difficult relative movements between adjacent wooden planks 1. If z. B. the left rear wooden plank and its neighboring wooden plank in the same (rear) layer in Figure 1 are loaded relative to one another along the longitudinal direction, that is to say "want to" shift against one another, the stiffening element 3 is braced in the groove in addition to the ridges 2.
  • the grain direction is approximately parallel to the grain direction in the wooden planks 1 and not transversely to it as in the ridge strips 2. This results in a higher rigidity of the stiffening element 3 itself and in comparison to the ridges 2 and thus also a particularly effective improvement in the rigidity of the entire plate element.
  • stiffening elements 3 are particularly long in the transverse direction (parallel to the ridge strips) or even to make them in one piece over the entire wooden panel element. Rather, the stiffening elements 3 can be relatively short in this direction. In particular, as in Figure 1 the case, but not visible, is limited to bridging a small number of joints between adjacent wooden planks 1.
  • the stiffening element 3 in Figure 1 a small piece (about a quarter of a wooden plank width) over the (purely graphic, not real) boundary surface in Figure 1 (with the dovetail profiles visible in the section) and thus the in Figure 1 no longer visible interface between the left front wooden plank 1 and its left neighbor, also not shown, overlap in the same layer.
  • the stiffening element 3 overlaps according to FIG Figure 1 the joint between the left rear wooden plank and its in Figure 1 also drawn right neighbor in the back layer, compare also Figure 7 .
  • the groove in turn can run through and the drawn reinforcing element 3 can be followed by a similar further (not drawn) or a plurality of such reinforcing elements 3 can be provided over the entire width of the wooden panel element.
  • FIG. 2 One variant shows Figure 2 .
  • the width of the stiffening elements 3 ' is limited and they only overlap exactly one joint between adjacent wooden planks 1'.
  • the correspondingly shorter stiffening elements are denoted by 3 '.
  • a wooden plank layer is provided so that the middle wooden plank layer on both of its main surfaces (in Figure 2 front and rear and parallel to the main plane) has stiffening elements 3 'and also ridges 2'.
  • Figure 6 shows this embodiment (again in part) as a section transverse to the longitudinal direction of the wooden planks 1, the stiffening elements 3 'being shown in dashed lines. It can be seen that the width of the stiffening elements 3 'is almost half the width of the wooden planks 1' and thus (if the stiffening elements 3 'are not completely flush with one another) the gaps (or also joints) between the stiffening elements 3' are out of step, so to speak "lie with the joints between the wooden planks 1 'in the respective layers affected by them. In other words, the gaps or joints between the stiffening elements 3 'lie between the joints of the respective two layers (the layer above and the layer below). In this example, the gaps between the stiffening elements 3 '(which in turn occur in layers) are each approximately the same in both layers (but this is not necessary). Nor is it necessary to match the positions of the joints between the wooden planks 1 of the outer layers.
  • Figure 7 shows an analogous section, but from the first embodiment Figure 1 .
  • the stiffening elements 3 are somewhat wider and in this case each capture a joint of the two respective layers, unlike in FIG Figure 6 .
  • the stiffening elements could also be a little wider, as in relation to Figure 1 already explained.
  • FIG. 4 shows a further third exemplary embodiment, which initially has great similarities with the second exemplary embodiment in FIG Figure 2 Has.
  • the stiffening elements are not provided between the layers of wooden planks 1 ′′, but in their outer surfaces and thus only in the outer layers Figure 3 at the height of the ridges 2. Although they do not fulfill their stiffening function there better than between the ridges (as in Figures 1 and 2 ), but this "concentrated" arrangement can be more at the edge z. B. be advantageous if the plate element rests there, that is, is still supported in the area of the ridges 2 and the stiffening elements 3 ′′. This applies in particular to ceiling elements, that is, a horizontal arrangement of the in Figure 3 vertically standing panel element.
  • stiffening elements are in their extension in the direction perpendicular to the main plane compared to those from the Figures 1 and 2 halved and thus roughly flush with the outer surfaces of the plate element. Especially with such an external arrangement, but also otherwise, it can be advantageous either to fix it in the manner described by inserting it very dry and then swelling it or to fix it a little with glue.
  • Figure 4 shows a further variant as a fourth embodiment.
  • This again largely corresponds to the second and third exemplary embodiments with regard to the wooden planks 1 and the ridge strips 2.
  • stiffening elements 3 ′′′ provided, in the inner boundary surfaces between the wooden plank layers as in the second embodiment.
  • it is not about one grain direction they can be relatively extended in the width direction, if desired Less weakening of the wooden planks 1 ′′′, because less volume is required.
  • a fifth example shows Figure 5 . It should be noted that this example does not belong to the invention because there is only one layer of wooden planks. Otherwise it illustrates a variant for the cross-connection means; namely, the previous ridge strips 2 as cross-connecting means have been replaced by threaded wooden rods 4, which naturally do not run on the outer surfaces of the wooden planks, but rather through the volume. Plate elements according to the invention can also be constructed and braced in a favorable manner with such wooden threaded rods. In principle, it is also true here that introduction is made easier in the particularly dry state.
  • Figure 8 shows for the first embodiment Figure 1 exemplary the technical effect of adding the stiffening elements 3 '.
  • the force-displacement diagram Figure 8 shows with the vertical axis a horizontal load at the head of the wall. So you have to choose the plate element Figure 1 with its lower Imagine the end firmly clamped and its upper end loaded relative to it, in a direction parallel to the main plane, i.e. in Figure 1 from left front to right back or vice versa. So it is about a bracing that wants to form a parallelogram from a rectangular plate element.
  • Figure 8 shows the shift in millimeters. Both axes can be viewed as divided into arbitrary units, because of course it depends on the height, the thickness, the width, the materials used and other things. Figure 8 so ultimately only serves as a qualitative explanation. In any case, the lines show a build-up and decrease of force with simultaneous measurement of the transverse displacement in the width direction.
  • the invention thus enables a significant stiffening of the plate element in a simple manner and without significant additional costs.
  • This basically also applies to other bending loads, in particular to a direction of force and deformation of the upper end of the plate element Figure 2 perpendicular to the main plane, i.e. from left back to front right or vice versa.
  • the stiffening elements 3, 3 ', 3' are arranged in the intermediate levels between the wooden plank layers and thus also hinder the shifting of the layers relative to one another.
  • the rigidity with regard to rotational deformations also increases, with mixed cases of relative displacements occurring here.
  • Multi-layer panel elements as in the Figures 1 to 4 are typically used more as wall elements.
  • stiffening elements 3 ⁇ as in Figure 5 to be provided in the area of the supports so as not to weaken the cross-section of the wooden planks in the unsupported area.
  • a preferred material for the wooden stiffening elements is spruce.
  • Typical dimensions for the stiffening elements are (regardless of the exemplary embodiments) 1 to 20 cm in length along the direction of the wooden planks and, independently of this, 1 to 4 cm in thickness.
  • the width in the direction of the cross-connection means can (cf. Figures 6 and 7 ) are in the order of about 40% of the width of the wooden plank to about the width of the wooden plank.
  • the stiffening elements can also extend over just about the entire extent of the plate element in this direction. With metal In terms of length, the range between 1 and 6 cm is preferred, for wood and wood-based materials between 4 and 20 cm.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)

Claims (14)

  1. Élément formant panneau en bois comportant:
    une pluralité de madriers (1-1‴) agencés parallèlement les uns aux autres, lesquels sont sensiblement plus long dans le sens de la longueur que dans les sens qui y sont perpendiculaires et pour lesquels le sens du grain est essentiellement parallèle au sens de la longueur,
    lesdits madriers (1-1‴) parallèles étant agencés côte à côte en au moins une couche parallèle à un plan principal de l'élément formant panneau,
    des moyens de liaison transversaux (2-2‴, 4) destinés à relier des madriers (1-1‴) adjacents au sein de l'au moins une couche; et
    des éléments raidisseurs (3-3‴) supplémentaires entre des madriers (1-1‴) adjacents au sein de l'au moins une couche respective,
    lesdits éléments raidisseurs (3-3‴) pénétrant dans des rainures des madriers (1-1‴),
    et ce sans liaison par complémentarité de forme par rapport à un sens perpendiculaire au plan principal des madriers (1-1‴);
    caractérisé en ce que les madriers (1-1‴) sont agencés côte à côte en plus d'une couche parallèle au plan principal de l'élément formant panneau.
  2. Élément formant panneau en bois selon la revendication 1, comportant des éléments raidisseurs (3, 3′, 3‴) entre les madriers (1, 1′, 1‴) adjacents des diverses couches.
  3. Élément formant panneau en bois selon l'une des revendications précédentes, dans lequel les éléments raidisseurs (3-3‴) et/ou les rainures des madriers (1-1‴) ont respectivement un profil sans contre-dépouille par rapport à un plan de coupe perpendiculaire au plan principal de l'élément formant panneau et au sens de la longueur d'un élément raidisseur respectif.
  4. Élément formant panneau en bois selon la revendication 3, dans lequel les éléments raidisseurs (3-3‴) et/ou les rainures ont respectivement un profil sans contre-dépouille par rapport à un autre sens dans le plan principal de l'élément formant panneau.
  5. Élément formant panneau en bois selon les revendications 3 et 4, dans lequel le profil est de forme parallélépipédique rectangulaire.
  6. Élément formant panneau en bois selon l'une des revendications précédentes, dans lequel les éléments raidisseurs (3, 3′, 3ʺ, 3‴) présentent une longueur selon le sens des madriers (1-1‴) faisant entre 1 et 20 cm et/ou une épaisseur perpendiculaire au plan principal de l'élément formant panneau faisant entre 1 et 4 cm.
  7. Élément formant panneau en bois selon l'une des revendications précédentes, dans lequel chacun des éléments raidisseurs (3, 3′, 3ʺ, 3‴) relie exactement deux madriers (1, 1′, 1ʺ, 1‴) adjacents par rapport à un même sens.
  8. Élément formant panneau en bois selon l'une des revendications précédentes, comportant des pièces profilées métalliques servant d'éléments raidisseurs (3‴).
  9. Élément formant panneau en bois selon l'une des revendications précédentes, dans lequel des languettes d'arête (2-2‴) sont prévues, dans des plans situés entre les au moins deux couches de madriers, en tant que moyens de liaison transversaux et sont orientées de manière que le sens de leur longueur est transversal au sens de la longueur desdits madriers (1-1‴).
  10. Élément formant panneau en bois selon l'une des revendications précédentes, dans lequel les moyens de liaison transversaux (2-2‴, 4) se composent de bois.
  11. Élément formant panneau en bois selon l'une des revendications précédentes, comportant des tiges filetées en bois en tant que moyens de liaison transversaux (4), lesquelles sont introduites à travers les madriers (1‴) adjacents d'une même couche de madriers.
  12. Élément formant panneau en bois selon l'une des revendications précédentes, dans lequel les madriers (1-1‴) de couches adjacentes sont en contact direct entre eux et/ou les madriers (1-1‴) d'une même couche sont en contact direct entre eux.
  13. Élément formant panneau en bois selon la revendication 12, dans lequel les surfaces des madriers (1-1‴) d'une même couche qui sont en contact entre elles sont dotées de dentures complémentaires, le profil se trouvant dans un plan de coupe perpendiculaire au sens de la longueur des madriers (1-1‴) et perpendiculaire à ladite couche.
  14. Utilisation d'un élément formant panneau en bois selon l'une des revendications précédentes pour un mur, un plafond ou un toit, notamment dans le cadre d'un bâtiment.
EP19175575.0A 2019-05-21 2019-05-21 Élément de panneau en bois composé d'une pluralité de madriers Active EP3741921B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SI201930144T SI3741921T1 (sl) 2019-05-21 2019-05-21 Leseni panelni element iz množice dveh ali več desk
PL19175575T PL3741921T3 (pl) 2019-05-21 2019-05-21 Drewniany element płytowy z wielu grubych desek
EP19175575.0A EP3741921B1 (fr) 2019-05-21 2019-05-21 Élément de panneau en bois composé d'une pluralité de madriers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19175575.0A EP3741921B1 (fr) 2019-05-21 2019-05-21 Élément de panneau en bois composé d'une pluralité de madriers

Publications (2)

Publication Number Publication Date
EP3741921A1 EP3741921A1 (fr) 2020-11-25
EP3741921B1 true EP3741921B1 (fr) 2021-11-17

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EP19175575.0A Active EP3741921B1 (fr) 2019-05-21 2019-05-21 Élément de panneau en bois composé d'une pluralité de madriers

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EP (1) EP3741921B1 (fr)
PL (1) PL3741921T3 (fr)
SI (1) SI3741921T1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE466087A (fr) *
DE2340101A1 (de) * 1973-08-08 1975-02-20 Michel Verspieren Paneel zur herstellung von fertighaeusern, insbesondere aus holz
FR2337018A1 (fr) * 1976-01-02 1977-07-29 Olivier Henri Panneau prefabrique
GB2090886A (en) * 1980-12-11 1982-07-21 Hughes & Allen Ltd Floor panels
CH692391A5 (de) * 1997-03-05 2002-05-31 Franz Schmidiger Mehrschicht-Bretter-Element.
EP2316624A3 (fr) * 2009-10-30 2013-06-19 Sergey Evgenievic Dorozhkin Panneau en bois multicouche
AT514424B1 (de) * 2013-07-11 2015-01-15 Ganaus Anna Schubsteifes Wand- und Deckenelement

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SI3741921T1 (sl) 2022-04-29
PL3741921T3 (pl) 2022-01-24
EP3741921A1 (fr) 2020-11-25

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