EP2384383A1 - Procédé de production d'un support de lamelles de bois lamellé-collé - Google Patents

Procédé de production d'un support de lamelles de bois lamellé-collé

Info

Publication number
EP2384383A1
EP2384383A1 EP09765086A EP09765086A EP2384383A1 EP 2384383 A1 EP2384383 A1 EP 2384383A1 EP 09765086 A EP09765086 A EP 09765086A EP 09765086 A EP09765086 A EP 09765086A EP 2384383 A1 EP2384383 A1 EP 2384383A1
Authority
EP
European Patent Office
Prior art keywords
bsh
board
slats
carrier
lamellae
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
Application number
EP09765086A
Other languages
German (de)
English (en)
Other versions
EP2384383B1 (fr
EP2384383B8 (fr
Inventor
Leopold Atschreiter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fritz Egger GmbH and Co OG
Original Assignee
Fritz Egger GmbH and Co OG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fritz Egger GmbH and Co OG filed Critical Fritz Egger GmbH and Co OG
Priority to PL09765086T priority Critical patent/PL2384383T3/pl
Publication of EP2384383A1 publication Critical patent/EP2384383A1/fr
Publication of EP2384383B1 publication Critical patent/EP2384383B1/fr
Application granted granted Critical
Publication of EP2384383B8 publication Critical patent/EP2384383B8/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/12—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members
    • E04C3/14—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members with substantially solid, i.e. unapertured, web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B1/00—Methods for subdividing trunks or logs essentially involving sawing
    • B27B1/002—Methods for subdividing trunks or logs essentially involving sawing by cross-cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/0013—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
    • B27M3/0026—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected laterally
    • B27M3/0053—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected laterally using glue
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/12—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members
    • E04C3/122—Laminated

Definitions

  • the invention relates to a method for producing a BSH (laminated glued laminated) plate carrier and a corresponding BSH plate carrier.
  • a BSH plate carrier means a component made of lamellae glued parallel to the fiber and produced in a special way, hereinafter referred to as BSH lamellae.
  • An intermediate in the production of the BSH plate carrier according to the invention is a so-called BSH carrier, also called laminated beams, horseraders, laminated wood or plate carriers.
  • Glued laminated timber or glulam beams have hitherto been produced as follows: First of all, the round wood is cut or sawed parallel to the fiber, that is to say in the growth direction of the original tree trunk, so that several boards are formed. Differences are the outboard side boards, also called sidewalls, which, based on the cross section of the board, predominantly annual rings have, and the Riftholz, also called Riftware, based on the cross section of the board, predominantly standing annual rings and part the main product is.
  • “Lying annual rings” means that the tangents applied to the annual rings visible in the cross section of the board are parallel or at a relatively acute angle to the lateral sides (broad sides) of the respective board, whereas "standing annual rings” means that those in the cross section of the board the visible annual rings on it applied tangents are perpendicular or at a relatively obtuse angle to the side surfaces of the respective board.
  • the boards thus obtained are dried and then planed. Before or after planing and several boards can be connected by finger jointing and shortened by capping to a predetermined length. Boards that result directly from the incision into the round timber and boards, which are composed of multiple single boards by finger jointing, will be referred to in the following for the sake of simplicity as a board blades.
  • said board lamella After said finger jointing said board lamella must be planed again. This is followed by gluing of the board lamellae on the side surfaces and pressing of a layered structure composed of a plurality of board lamellae, whereby, if appropriate after further planing and / or cosmetic treatment, said BSH carrier is produced.
  • BSH carriers can be produced in almost any length, shape or profile, even curved or bent, and have a relatively high strength.
  • the board lamellae which are to form the later BSH carrier, are made of the so-called main commodity of the round timber, which is a rectangular in cross-section part within the round timber.
  • the side product is for the high-quality glulam carrier not readily usable because boards produced therefrom are narrower and / or thinner than the boards of the main product and often have so-called beveled forest edges that have a non-uniform surface of the BSH carrier in a later layered structure.
  • BSH carrier which is made exclusively of boards of the side goods with corresponding forest edges.
  • a layered structure of side boards is first glued and pressed, which is then divided in the longitudinal direction, that is perpendicular to the broad sides or side surfaces of the boards and the two sections finally on the original outside, the forest edges has to be reassembled.
  • the dimensions, in particular the width, of a BSH carrier produced in this way are dependent on the dimensions, in particular the width, of the side boards. Consequently, only relatively narrow BSH supports can be produced in this way.
  • the finished BSH carrier inevitably has cavities in the interior in the area of the joining surface, and thus no solid material, which can lead to stability losses.
  • the previously derived and indicated object is achieved according to a first teaching of the present invention by a method for producing a BSH plate carrier, in which the following steps are carried out successively: producing board lamellae with predominantly annual rings from a round timber, the board lamellae one each first side surface directed towards the outside of the roundwood from which it is made, and having a second side surface directed towards the core of the roundwood, making a BSH beam by fiber-parallelly bonding a plurality of board laminations arranged along their side surfaces to form a laminar structure, of which most, preferably all, are such board laminations with predominantly annual rings, producing BSH lamellae by sawing the BSH carrier fiber-parallel and perpendicular to the side surfaces of the board lamellae, whereby the BSH lamellae each perpendicular to z u cut surfaces
  • the basic idea of the present invention is to remodel the side goods barely usable in the production of BSH carriers in a number of process steps to form special lamellae, the so-called BSH lamellae, thereby creating a complete replacement for conventional board lamellae made from the main product.
  • the aforementioned BSH lamellae that is, the lamellae made of glued laminated timber, can be readily adapted to the dimensions of the board lamellae made from the main product be adjusted.
  • the width of the BSH slats can be adjusted by selecting a corresponding number of side boards arranged to form a layered structure.
  • the thickness of the BSH slats can be adjusted by appropriate selection of the cutting plane (s) when sawing (cutting) the layered structure of side boards.
  • a further advantage of the production method according to the invention is that the BSH lamellae produced from the BSH support which represents the intermediate product have a higher flexural strength perpendicular to the lamellar plane than conventional lamellae with predominantly annual rings, in particular lateral boards, since the annual rings in the BSH lamellas, at least in the middle of the slat, are arranged mainly standing and the BSH slats can thereby replace the higher quality and more expensive Riftholz, which also has predominantly standing annual rings.
  • Carrier lead to chipping and thus an uneven surface in the area of the cut surfaces. Such Chipping would lead to voids in the interior of the end product according to the invention, that is to say of the BSH plate carrier, which in turn may have a negative influence on the stability.
  • At least one board lamella having predominantly standing annual rings that is to say so-called Riftware or so-called raised timber
  • said at least one integrated in the layered structure board blade with the remaining standing annual rings forms a cover layer, that is, one of the outer layers of the BSH carrier.
  • both cover layers of the BSH carrier are each formed by a board lamella with predominantly standing annual rings.
  • the step of producing the intermediate product ie the BSH carrier
  • the layered structure board slats different thickness integrated, that is, at least one board slat has a different thickness than the other board slats of the layer structure.
  • a first thickness and change preferably, in the layer structure Brettlamellen a first thickness and change
  • Board slats of a second thickness It is therefore possible to use sideboards of different thicknesses in the manufacture of the BSH Slat carrier can be used, which increases the yield and yet is not visible in the final product from the outside.
  • a further advantage as will be explained in more detail below, is that, given a special arrangement of the BSH lamellae resulting from the lamella layer structure, an increase in stability of the end product is achieved due to the different thickness of the lamellae.
  • At least one board lamella in the step of gluing the at least one plurality of BSH lamellae, at least one board lamella, preferably at least one lamella with predominantly annual rings, is integrated into the layered structure.
  • the at least one board lamella integrated in the layered structure forms a cover layer of the BSH lamination carrier (the end product).
  • both cover layers of the BSH plate carrier are each formed by a board blade, preferably a board blade with predominantly annual rings.
  • the joints in adjacent BSH slats are arranged at least partially offset from one another in the layered structure of the BSH plate carrier.
  • This can For example, as mentioned above, be achieved in that in the step of Hers damagess the intermediate product in the layered structure board slats of different thicknesses, in particular in their thickness alternating board slats, are integrated.
  • adjacent BSH lamellae are arranged in a direction rotated relative to each other by 180 ° orientation in the layered structure, are thereby in the end product with adjacent BSH lamellae the butt joints offset each other, which increases the stability and also the bending stiffness of the end product.
  • adjacent BSH lamellae are arranged in an orientation rotated relative to one another by 180 ° when the at least one plurality of BSH lamellae are glued in the layered structure, also irrespective of the presence of a BHS carrier with board lamellae can be different thickness.
  • an adhesive which is selected from the group comprising casein glue, resorcinol / phenol-formaldehyde Adhesive, urea / melamine-formaldehyde resin adhesive, melamine-formaldehyde adhesive, isocyanates and epoxy resin adhesive.
  • Double-curved means that the finished carrier is curved in two mutually perpendicular directions, wherein the two radii of curvature transverse to the longitudinal direction of the carrier.
  • the board lamellae are glued together in a curved shape and, in the step of gluing the at least several BSH lamellae, these are likewise glued together in a curved shape, the curvature, that is the radius of curvature, during
  • an intermediate with a curvature is first prepared by gluing the intermediate product with an elevation. If this is then separated by fiber-parallel sawing perpendicular to the side surfaces of the board lamella, the resulting BSH lamella goes "around the curve", ie it is simply curved. If a plurality of such simply curved BHS lamellae are also glued with an elevation to a BSH lamella carrier, in which case the curvature runs perpendicular to the curvature previously produced, the end product is doubly curved.
  • said BSH plate carrier may be simply curved or also double-curved, that is to say in two mutually perpendicular directions, which can be achieved in a particularly simple manner in the method according to the invention and leads to a particularly high stability in the end product.
  • Fig. 1 is a schematic sectional view of a round timber and the producible therefrom
  • FIG. 2 shows a schematic perspective view of a board lamella obtained from the round timber from FIG. 1, FIG.
  • FIG. 3 is a schematic sectional view of a BSH
  • Carrier produced using a plurality of board lamellae of the type shown in FIG. 2, 4 is a schematic sectional view of BSH
  • Lamellae made from the BSH support shown in FIG. 3 Lamellae made from the BSH support shown in FIG. 3,
  • Fig. 5 is a schematic sectional view of a first
  • Fig. 7a) and b) is a schematic sectional view of BSH plates of still another type and a third embodiment of a BSH plate carrier produced therefrom, and
  • Fig. 8a) and b) is a schematic sectional view of BSH lamellae in a curved shape and a fourth embodiment of a BSH plate carrier produced therefrom in a double-curved shape.
  • Fig. 1 shows the cross section through a round timber 4, which was made from a tree trunk (not shown).
  • the round timber 4 has an outer side 4a and a core 4b, around which the annual rings 3 are arranged.
  • the so-called main product 15 can be used for the production of board slats of a certain width and thickness, from which a conventional BSH carrier can be produced.
  • a component comparable with a conventional BSH carrier, the so-called BSH plate carrier 1 can be produced using a part of the side product 14 which was previously not readily usable.
  • the so-called Riftware 16 is shown hatched in Fig. 1 as part of the main product 15, which is characterized in that in this area the annual rings 3 are arranged mainly standing.
  • large parts of the later end product that is to say of the aforementioned BSH disk carrier 1, can have a similar structural design to the high-quality and expensive computer products 16.
  • FIG. 1 in the present exemplary embodiment, only four approximately equal boards 2 'are shown in the area of the sidewalls, although it is entirely conceivable to use further side boards, which are even narrower and / or thinner than the one shown in FIG Side boards 2 1 are to produce and thus achieve an even greater increase in yield.
  • the side boards 2 ' are so separated from the round timber 4, that in each case a first side surface for
  • a board blade 2 is shown with predominantly annual rings 3, which was prepared by two side boards 2 'of the type described above by means of finger jointing 11 were joined together.
  • FIG. 1 A further method step of the production method according to the invention is shown in FIG.
  • a BSH carrier 6 is produced as an intermediate product by arranging a plurality of board lamellae 2 of the type shown in FIG. 2 along their side surfaces 5a and 5b into a laminar structure 7 and gluing them together in a fiber-parallel manner.
  • all the board lamellae 2 predominantly annual rings on.
  • the two outer board slats 2, which form the cover layers 12b of the layered structure 7, are arranged so that the second side surface 5b, which was originally directed to the core 4b of the roundwood 4, faces outward.
  • FIG. 4 shows the process step following here, in which BSH lamellae 8 are produced from the intermediate product shown in FIG. 3 by cutting or cutting fiberglass-parallel and perpendicularly to the side surfaces 5a and 5b of the board lamellae 2; whereby the BSH-slats 8 each receive perpendicular to the side surfaces 5a and 5b of the board slats 2 cut surfaces 9.
  • the guide direction of the saw blades is shown here schematically by vertical arrows.
  • the thus obtained BSH lamellae 8 are in the next step, as shown by way of example in FIG. 5, arranged along their cutting surface 9 together with two cover layers 12b each consisting of a board lamella 2 with predominantly annual rings 3 to a layered structure 10 and glued.
  • the resulting end product in this way is a BSH plate carrier 1, which is visually and technically at least comparable with a conventional BSH carrier, but leads to an increase in the yield of the underlying round timber.
  • BSH blades 8 are shown of a different type.
  • cover layers 12a board slats with predominantly standing annual rings, so-called Riftware, integrated.
  • a BSH lamella carrier 1 is produced, as shown in FIG. 6b).
  • this BSH plate carrier 1 a uniform appearance is achieved on the left and right carrier surface, although board lamellae 2 on the one hand and BSH lamellae 8 on the other hand have been combined in layer construction.
  • Fig. 7b finally shows a BSH plate carrier 1, made of BSH fins 8, as shown in Fig. 7a).
  • every second BSH lamella 8 was rotated in the layer structure 10 before gluing relative to the respective adjacent BSH lamella by 180 °, whereby it is achieved that in the layer structure 10 of the BSH lamella carrier 1, the joints 13 in adjacent BSH lamellae offset from one another.
  • this BSH plate carrier 1 has as cover layers 12b board slats 2 with predominantly annual rings on.
  • FIGS. 8a) and b) finally show an exemplary embodiment in which the board lamellae 2 were glued together in a curved shape during the production of the intermediate product.
  • the resulting, simply curved BSH carrier 6 is then then separated by fiber-parallel sawing perpendicular to the side surfaces of the board slats 2 - the sawing is also symbolized by arrows -, resulting in BSH lamellae 8, which, when they are arranged horizontally, have the shape of a curve.
  • FIG. 8b shows an embodiment of a BSH plate carrier 1, which arises when several of the curved BSH lamellae 8 stacked and glued together in a likewise curved shape, wherein the curvature used here perpendicular to the curvature used in the gluing of the board slats 2 runs.
  • the result is a double-curved BSH plate carrier 1, which is thus curved in two mutually perpendicular directions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Architecture (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

L'invention concerne un procédé utilisé pour produire un support de lamelles de bois lamellé-collé (1), qui comprend les étapes successives suivantes: produire des lamelles de planches (2) présentant essentiellement des anneaux annuels de croissance (3) à partir d'un bois rond (4), les lamelles de planches (2) présentant respectivement une première surface latérale (5a) antérieurement orientée en direction de la face extérieure (4a) du bois rond (4) dans lequel elles ont été faites ainsi qu'une seconde surface latérale (5b) antérieurement orientée en direction du coeur (4b) du bois rond (4); produire un support de lamelles de bois lamellé-collé (6) par collage parallèle aux fibres de plusieurs lamelles de planches (2) disposées le long de ses surfaces latérales (5a, 5b) en une structure en couches, la plupart de ces lamelles de planches (2), de préférence toutes, présentant essentiellement des anneaux annuels de croissance (3); produire des lamelles de bois lamellé-collé (8) par sciage en tronçons du support de lamelles de bois lamellé-collé (6) parallèlement aux fibres et perpendiculairement aux surfaces latérales (5a, 5b) des lamelles de planches (2), ce qui confère aux lamelles de bois lamellé-collé (8)des surfaces de coupe (9) s'étendant respectivement perpendiculairement aux surfaces latérales (5a, 5b) des lamelles de planches (2); et collage d'au moins plusieurs lamelles de bois lamellé-collé (8) disposées le long de leur surface de coupe (9) en une structure (10) en couches, L'invention permet d'augmenter ainsi le rendement lors de la production de lamelles de planches pour le bois lamellé-collé.
EP09765086.5A 2009-01-30 2009-12-02 Procédé de production d'une poutre lamelée-collée et poutre lamellée-collée Active EP2384383B8 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09765086T PL2384383T3 (pl) 2009-01-30 2009-12-02 Sposób wytwarzania belki z klejonych listew (belki klejonej BSH) i belka z klejonych listew (belka klejona BSH)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009006971A DE102009006971B4 (de) 2009-01-30 2009-01-30 Verfahren zur Herstellung eines BSH-Lamellenträgers
PCT/EP2009/066242 WO2010086051A1 (fr) 2009-01-30 2009-12-02 Procédé de production d'un support de lamelles de bois lamellé-collé

Publications (3)

Publication Number Publication Date
EP2384383A1 true EP2384383A1 (fr) 2011-11-09
EP2384383B1 EP2384383B1 (fr) 2013-02-13
EP2384383B8 EP2384383B8 (fr) 2013-04-10

Family

ID=41692818

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09765086.5A Active EP2384383B8 (fr) 2009-01-30 2009-12-02 Procédé de production d'une poutre lamelée-collée et poutre lamellée-collée

Country Status (6)

Country Link
EP (1) EP2384383B8 (fr)
DE (1) DE102009006971B4 (fr)
ES (1) ES2401230T3 (fr)
PL (1) PL2384383T3 (fr)
RU (1) RU2493335C2 (fr)
WO (1) WO2010086051A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2574436A1 (fr) * 2011-09-29 2013-04-03 Ludwik Olczyk Procédé de fabrication d'un contreplaqué latté multicouche à partir de lamelles solides de bois de conifère à dureté et résistance à l'abrasion améliorées
RU2565312C1 (ru) * 2014-10-01 2015-10-20 Общество с ограниченной ответственностью "ГУД ВУД" Способ изготовления клееного строительного бруса и брус строительный клееный
AT518249B1 (de) * 2016-02-16 2017-09-15 Fill Gmbh Verfahren und Vorrichtung zum Herstellen von Brettschichtholz
BE1024977B1 (nl) * 2017-02-03 2018-09-04 Eksito Bvba Werkwijze voor het vervaardigen van een balk
NO345479B1 (no) * 2018-08-27 2021-02-22 Arne Vaslag Sammensatt, samvirkende og langstrakt bygningselement, og fremgangsmåte for tilvirkning av et slikt bygningselement.

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JPS5443048B2 (fr) * 1972-07-18 1979-12-18
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NO162124C (no) * 1984-06-22 1989-11-08 Arne Engebretsen Forspent bjelke av trevirke.
CA2084260A1 (fr) * 1992-12-01 1994-06-02 James P. Mohan Poutre lamellee collee
CH688099A5 (de) * 1994-11-10 1997-05-15 Hermann Fendt Verfahren zur herstellung eines tafelelements aus massivholz.
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Also Published As

Publication number Publication date
WO2010086051A1 (fr) 2010-08-05
ES2401230T3 (es) 2013-04-17
RU2493335C2 (ru) 2013-09-20
EP2384383B1 (fr) 2013-02-13
RU2011135953A (ru) 2013-03-10
DE102009006971A1 (de) 2010-08-05
DE102009006971B4 (de) 2011-01-20
EP2384383B8 (fr) 2013-04-10
PL2384383T3 (pl) 2013-07-31

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