EP4188657A1 - Method for producing construction wood from small-dimensioned wood, and construction wood - Google Patents

Method for producing construction wood from small-dimensioned wood, and construction wood

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Publication number
EP4188657A1
EP4188657A1 EP21766107.3A EP21766107A EP4188657A1 EP 4188657 A1 EP4188657 A1 EP 4188657A1 EP 21766107 A EP21766107 A EP 21766107A EP 4188657 A1 EP4188657 A1 EP 4188657A1
Authority
EP
European Patent Office
Prior art keywords
small
flanks
wood
producing
panel
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.)
Pending
Application number
EP21766107.3A
Other languages
German (de)
French (fr)
Inventor
Xaver Haas
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.)
Individual
Original Assignee
Individual
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Publication date
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Publication of EP4188657A1 publication Critical patent/EP4188657A1/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • B27B1/005—Methods for subdividing trunks or logs essentially involving sawing including the step of dividing the log into sector-shaped segments
    • 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
    • B27M3/006—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected both laterally and at their ends
    • 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 method for producing structural lumber, especially from small wood, and to structural lumber produced using such a method.
  • small wood is understood to mean round wood from trees which has a comparatively small top diameter, which is in particular between 100 mm and 200 mm.
  • Such weak wood is also referred to as so-called “paperwood” because such wood is currently used primarily for papermaking.
  • Such weak wood usually has a trunk length of between 1 m and 6 m, preferably between 2 m and 5 m.
  • the invention is based on the object of supplying small wood of the type mentioned with a higher value than is the case in papermaking.
  • Solution according to the invention is based on the object of supplying small wood of the type mentioned with a higher value than is the case in papermaking.
  • this object is achieved with a method for producing construction timber from small wood with the following steps:
  • the thickness of the half wood is preferably between 45 mm and 90 mm.
  • a gradual thickness, depending on the diameter of the processed small wood trunk, of 47 mm (with a top diameter of at least 100 mm), 67 mm (with a top diameter of at least 140 mm) and 87 mm (with a top diameter of at least 180 mm) is particularly preferred.
  • the trimmed half timbers are preferably first dried.
  • At least one gradation or profiling is advantageously formed in the lateral flanks of the trimmed half timbers, in particular after the trimmed ones have dried half woods.
  • This profiling preferably forms a step in an otherwise essentially flat surface, the main plane of which extends obliquely to the central sectional surface.
  • the angle between the middle section surface and the main plane of this profile or flank surface is preferably between 55° and 72°, depending on the diameter of the processed small wood trunk.
  • the method according to the invention for producing structural timber from small wood preferably also has the step of separating at least one panel strip from the endless panel with essentially parallel strip flanks, in particular with a width of between 8 cm and 30 cm.
  • the method for producing construction timber from small wood according to the invention is advantageously further characterized by the step: producing an endless panel strip by successively laying and gluing several panel strips, the panel strips being provided at their ends in particular with prongs.
  • the method according to the invention for producing structural timber from small timber preferably also includes the step of producing a beam by arranging and gluing several endless board strips, previously cut to a predetermined length, one on top of the other.
  • the invention also relates to structural lumber made by such a method. Brief description of the drawings
  • Fig. 1 an explanation of work steps of an embodiment of the solution according to the invention
  • FIG. 2 shows a partial front plan view of a small piece of wood for processing according to the method according to the invention.
  • a method 10 for producing structural lumber 12 from small wood 14 comprises a step 16 in which a small log 18 is provided, which extends in a longitudinal direction, has a substantially circular cross-section 20 and tapers conically in its longitudinal direction (not shown).
  • the small log 18 preferably has a diameter at the top (thin end) of between 100 mm and 200 mm and/or a diameter at the stick (thick end) of between 124 mm and 224 mm.
  • the small wood trunk 18 is then further separated in step 16 into two half woods 22, each of which is delimited by a central cut surface 24 and an outer cut surface 26 parallel thereto.
  • a step 28 the half-timbers 22 are trimmed or laterally milled, with this trimming or milling of the two half-timbers taking place conically, each with two flanks 30 whose main planes extend perpendicularly to the central cutting surface 24.
  • the two flanks 30 follow each other along the conical shape of the original small wood trunk 18 .
  • a step 32 in which the wood prepared in this way is first dried to a residual moisture content of preferably between 12% and 20%, particularly preferably between 15% and 18%, and then in a step 34 in the flanks 30 with one Profiling or graduation 36 to be provided.
  • a step 38 the half-timbers 22 trimmed and profiled in this way are placed alternately against one another with their lateral, profiled flanks 30 running towards one another. Then the half-timbers 22 pre-processed in this way are glued together at their profiled flanks 30 to form a single-layer endless board 40 .
  • step 42 individual panel strips 44 are then separated from this single-layer endless panel 40, each of which has strip flanks 46 parallel to one another.
  • the individual strip flanks 46 are then in a step 48 provided at their ends with prongs 50, in particular in the form of longitudinal finger joints, one behind the other and then glued to the prongs 50 together.
  • a beam in the form of a BSH beam 60 (laminated timber beam), a duo beam 62 or a trio beam 64 is then produced from such lamellae 58 by arranging them one on top of the other and gluing.
  • a so-called cross-laminated timber 66 in particular of the CLT quality, can also be produced in this way.
  • 2 shows a partial view of a small log 18 from the front, with a plait radius 68 and a stock radius 70 being marked.
  • a half-timber 22 is formed with its central cut surface 24 and its outer cut surface 26 opposite.
  • this angle 74 is advantageously between 55° and 72°, in particular between 60° and 65°.

Abstract

The invention relates to a method for producing construction wood from small-dimensioned wood, having the steps of: - providing a small-dimensioned wood log which extends in a longitudinal direction and thereby has a substantially circular cross-section and tapers conically in the longitudinal direction, - separating the small-dimensioned wood log into two half logs, each of which is delimited by a central cutting surface and a parallel outer cutting surface, - trimming the two half logs so as to provide two respective flanks, said two flanks being provided so as to run towards each other along the conical shape of the original small-dimensioned wood log, and - producing a single-layer continuous board by placing and gluing the lateral flanks of multiple trimmed half logs together, wherein the half logs are arranged such that the flanks thereof running towards each other lie against each other in a reciprocal manner.

Description

Beschreibung description
VERFAHREN ZUM HERSTELLEN VON KONSTRUKTIONSBAUHOLZ AUS SCHWACHHOLZ UND KONSTRUKTIONSBAUHOLZ PROCESS FOR MAKING STRUCTURAL TIMBER FROM SMALL WOOD AND STRUCTURAL TIMBER
Hintergrund der Erfindung Background of the Invention
Die Erfindung betrifft ein Verfahren zum Herstellen von Konstruktionsbauholz speziell aus Schwachholz sowie auf mit einem derartigen Verfahren hergestelltes Konstruktionsbauholz. The invention relates to a method for producing structural lumber, especially from small wood, and to structural lumber produced using such a method.
Unter Schwachholz wird vorliegend Rundholz von Bäumen verstanden, das einen vergleichsweise kleinen Zopfdurchmesser aufweist, der insbesondere zwischen 100 mm und 200 mm beträgt. Derartiges Schwachholz wird auch als so genanntes "Papierholz" bezeichnet, weil derartiges Holz derzeit vorzugsweise für die Papierherstellung verwendet wird. Derartiges Schwachholz weist in der Regel und hier vorzugsweise eine Stamm länge von zwischen 1 m und 6 m, vorzugsweise zwischen 2 m und 5 m auf. In the present case, small wood is understood to mean round wood from trees which has a comparatively small top diameter, which is in particular between 100 mm and 200 mm. Such weak wood is also referred to as so-called "paperwood" because such wood is currently used primarily for papermaking. Such weak wood usually has a trunk length of between 1 m and 6 m, preferably between 2 m and 5 m.
Zugrundeliegende Aufgabe Underlying Task
Der Erfindung liegt die Aufgabe zugrunde, Schwachholz der genannten Art einer höherwertigen Nutzung zuzuführen, als es bei der Papierherstellung der Fall ist. Erfindunqsqemäße Lösung The invention is based on the object of supplying small wood of the type mentioned with a higher value than is the case in papermaking. Solution according to the invention
Diese Aufgabe ist erfindungsgemäß mit einem Verfahren zum Herstellen von Konstruktionsbauholz aus Schwachholz mit folgenden Schritten gelöst: According to the invention, this object is achieved with a method for producing construction timber from small wood with the following steps:
- Bereitstellen eines Schwachholz-Stammes, der sich in eine Längsrichtung erstreckt, dabei einen im Wesentlichen kreisrunden Querschnitt aufweist und sich in seiner Längsrichtung konisch verjüngt, - providing a small wood trunk, which extends in a longitudinal direction, has a substantially circular cross-section and tapers conically in its longitudinal direction,
- Auftrennen des Schwachholz-Stammes in zwei Halbhölzer, die dabei je begrenzt sind von einer Mittelschnittfläche und einer dazu parallelen Außenschnittfläche,- Separation of the weak wood trunk into two half-timbers, each of which is delimited by a central cut surface and a parallel outer cut surface,
- Besäumen der beiden Halbhölzer mit jeweils zwei Flanken, deren Hauptebenen sich insbesondere im Wesentlichen senkrecht oder alternativ vorzugsweise in einem Winkel zwischen 55° und 77° zur Mittelschnittfläche erstrecken, wobei die beiden Flanken entlang der konischen Form des ursprünglichen Schwachholz- Stammes aufeinander zulaufend besäumt werden, - Trimming of the two half-timbers, each with two flanks, the main planes of which extend essentially perpendicularly or alternatively preferably at an angle of between 55° and 77° to the central cut surface, with the two flanks being trimmed running towards one another along the conical shape of the original small wood trunk ,
- Herstellen einer einschichtigen Endlos-Platte mittels aneinander Anlegen und Verleimen von mehreren besäumten Halbhölzern mit ihren seitlichen Flanken, wobei die Halbhölzer mit ihren aufeinander zulaufenden Flanken wechselseitig aneinander angelegt werden. - Production of a single-layer endless panel by laying and gluing several trimmed half-timbers together with their lateral flanks, the half-timbers being laid against one another alternately with their flanks that converge.
Die Dicke der Halbhölzer beträgt dabei vorzugsweise zwischen 45 mm und 90 mm. Besonders bevorzugt ist eine stufenweise Dicke in Abhängigkeit des Durchmessers des verarbeiteten Schwachholz-Stammes von 47 mm (bei mindestens 100 mm Zopfdurchmesser), 67 mm (bei mindestens 140 mm Zopfdurchmesser) und 87 mm (bei mindestens 180 mm Zopfdurchmesser). The thickness of the half wood is preferably between 45 mm and 90 mm. A gradual thickness, depending on the diameter of the processed small wood trunk, of 47 mm (with a top diameter of at least 100 mm), 67 mm (with a top diameter of at least 140 mm) and 87 mm (with a top diameter of at least 180 mm) is particularly preferred.
Vorzugsweise werden dabei beim Herstellen der einschichtigen Endlos-Platte die besäumten Halbhölzer zunächst getrocknet. When producing the single-layer endless board, the trimmed half timbers are preferably first dried.
Ferner wird beim Herstellen der einschichtigen Endlos-Platte vorteilhaft in die seitlichen Flanken der besäumten Halbhölzer mindestens eine Stufung bzw. Profilierung ausgebildet, insbesondere nach dem Trocknen der besäumten Halbhölzer. Diese Profilierung bildet dabei vorzugsweise eine Stufe in einer ansonsten im Wesentlichen ebenen Fläche, deren Hauptebene sich schräg zur Mittelschnittfläche erstreckt. Der Winkel zwischen der Mittelschnittfläche und der Hauptebene dieser Profil- bzw. Flankenfläche beträgt dabei vorzugsweise in Abhängigkeit des Durchmessers des verarbeiteten Schwachholz-Stammes zwischen 55° und 72°. Furthermore, during the manufacture of the single-layer endless board, at least one gradation or profiling is advantageously formed in the lateral flanks of the trimmed half timbers, in particular after the trimmed ones have dried half woods. This profiling preferably forms a step in an otherwise essentially flat surface, the main plane of which extends obliquely to the central sectional surface. The angle between the middle section surface and the main plane of this profile or flank surface is preferably between 55° and 72°, depending on the diameter of the processed small wood trunk.
Das erfindungsgemäße Verfahren zum Herstellen von Konstruktionsbauholz aus Schwachholz weist vorzugsweise ferner den Schritt auf: Abtrennen mindestens eines Plattenstreifens von der Endlos-Platte mit im Wesentlichen zueinander parallelen Streifenflanken, insbesondere mit einer Breite von zwischen 8 cm und 30 cm. The method according to the invention for producing structural timber from small wood preferably also has the step of separating at least one panel strip from the endless panel with essentially parallel strip flanks, in particular with a width of between 8 cm and 30 cm.
Darüber hinaus ist das Verfahren zum Herstellen von Konstruktionsbauholz aus Schwachholz gemäß der Erfindung vorteilhaft weiter gekennzeichnet durch den Schritt: Herstellen eines Endlos-Plattenstreifens mittels hintereinander Anlegen und Verleimen von mehreren Plattenstreifen, wobei die Plattenstreifen an ihren Enden insbesondere mit Zinken versehen werden. In addition, the method for producing construction timber from small wood according to the invention is advantageously further characterized by the step: producing an endless panel strip by successively laying and gluing several panel strips, the panel strips being provided at their ends in particular with prongs.
Ferner ist bei dem Verfahren zum Herstellen von Konstruktionsbauholz aus Schwachholz gemäß der Erfindung ferner der Schritt vorgesehen: Hobeln des Endlos-Plattenstreifens auf ein Dieken-Endmaß. Further, in the method of manufacturing structural lumber from small wood according to the invention, there is further provided the step of planing the endless strip of boards to a plank caliper.
Schließlich ist bei dem erfindungsgemäßen Verfahren zum Herstellen von Konstruktionsbauholz aus Schwachholz vorzugsweise auch der Schritt vorgesehen: Herstellen eines Balkens mittels übereinander Anordnen und Verleimen mehrerer, zuvor auf vorbestimmte Länge abgelängter Endlos- Plattenstreifen. Finally, the method according to the invention for producing structural timber from small timber preferably also includes the step of producing a beam by arranging and gluing several endless board strips, previously cut to a predetermined length, one on top of the other.
Die Erfindung bezieht sich auch auf mit einem derartigen Verfahren hergestelltes Konstruktionsbauholz. Kurzbeschreibung der Zeichnungen The invention also relates to structural lumber made by such a method. Brief description of the drawings
Nachfolgend wird ein Ausführungsbeispiel der erfindungsgemäßen Lösung anhand der beigefügten schematischen Zeichnungen näher erläutert. Es zeigt: An exemplary embodiment of the solution according to the invention is explained in more detail below with reference to the accompanying schematic drawings. It shows:
Fig. 1 eine Erläuterung von Arbeisschritten eines Ausführungsbeispiels der erfindungsgemäßen Lösung, Fig. 1 an explanation of work steps of an embodiment of the solution according to the invention,
Fig. 2 eine teilweise, stirnseitige Draufsicht auf ein Schwachholz zur Verarbeitung gemäß dem erfindungsgemäßen Verfahren. 2 shows a partial front plan view of a small piece of wood for processing according to the method according to the invention.
Detaillierte Beschreibung des Ausführungsbeispiels Detailed description of the embodiment
In Fig. 1 ist ein Ausführungsbeispiel eines Verfahren 10 zum Herstellen von Konstruktionsbauholz 12 aus Schwachholz 14 dargestellt. Das Verfahren umfasst dabei einen Schritt 16, bei dem ein Schwachholz-Stamm 18 bereitgestellt wird, der sich in eine Längsrichtung erstreckt, dabei einen im Wesentlichen kreisrunden Querschnitt 20 aufweist und sich in seiner Längsrichtung konisch verjüngt (nicht dargestellt). Der Schwachholz-Stamm 18 weist dabei vorzugsweise einen Durchmesser am Zopf (dünnes Ende) von zwischen 100 mm und 200 mm und/oder einen Durchmesser am Stock (dickes Ende) von zwischen 124 mm und 224 mm auf. Der Schwachholz-Stamm 18 wird dann im Schritt 16 weiter in zwei Halbhölzer 22 aufgetrennt, die je begrenzt sind von einer Mittelschnittfläche 24 und einer dazu parallelen Außenschnittfläche 26. 1, one embodiment of a method 10 for producing structural lumber 12 from small wood 14 is illustrated. The method comprises a step 16 in which a small log 18 is provided, which extends in a longitudinal direction, has a substantially circular cross-section 20 and tapers conically in its longitudinal direction (not shown). The small log 18 preferably has a diameter at the top (thin end) of between 100 mm and 200 mm and/or a diameter at the stick (thick end) of between 124 mm and 224 mm. The small wood trunk 18 is then further separated in step 16 into two half woods 22, each of which is delimited by a central cut surface 24 and an outer cut surface 26 parallel thereto.
In einem Schritt 28 werden die Halbhölzer 22 besäumt bzw. seitlich gefräst, wobei dieses Besäumen bzw. Fräsen der beiden Halbhölzer konisch erfolgt, mit jeweils zwei Flanken 30, deren Hauptebenen sich senkrecht zur Mittelschnittfläche 24 erstrecken. Dabei folgen die beiden Flanken 30 entlang der konischen Form des ursprünglichen Schwachholz-Stammes 18 aufeinander zulaufend. Nachfolgend erfolgt dann ein Schritt 32, bei dem das derart vorbereitete Holz zunächst auf eine Restfeuchte von vorzugsweise zwischen 12 % und 20 %, besonders bevorzugt zwischen 15 % und 18 % getrocknet wird, um dann in einem Schritt 34 in den Flanken 30 mit je einer Profilierung bzw. Stufung 36 versehen zu werden. In a step 28, the half-timbers 22 are trimmed or laterally milled, with this trimming or milling of the two half-timbers taking place conically, each with two flanks 30 whose main planes extend perpendicularly to the central cutting surface 24. The two flanks 30 follow each other along the conical shape of the original small wood trunk 18 . This is followed by a step 32, in which the wood prepared in this way is first dried to a residual moisture content of preferably between 12% and 20%, particularly preferably between 15% and 18%, and then in a step 34 in the flanks 30 with one Profiling or graduation 36 to be provided.
In einem Schritt 38 werden die derartigen, besäumten und profilierten Halbhölzer 22 mit ihren seitlichen, aufeinander zulaufenden, profilierten Flanken 30 wechselseitig aneinander gelegt. Dann werden die derart vorverarbeiteten Halbhölzer 22 an ihren profilierten Flanken 30 miteinander zu einer einschichtigen Endlos-Platte 40 verleimt. In a step 38, the half-timbers 22 trimmed and profiled in this way are placed alternately against one another with their lateral, profiled flanks 30 running towards one another. Then the half-timbers 22 pre-processed in this way are glued together at their profiled flanks 30 to form a single-layer endless board 40 .
Von dieser einschichtigen Endlos-Platte 40 werden dann in einem Schritt 42 einzelne Plattenstreifen 44 abgetrennt, die je zueinander parallele Streifenflanken 46 aufweisen. In a step 42, individual panel strips 44 are then separated from this single-layer endless panel 40, each of which has strip flanks 46 parallel to one another.
Die einzelnen Streifenflanken 46 werden dann in einem Schritt 48 an ihren Enden je mit Zinken 50, insbesondere in Gestalt einer Längskeilverzinkung versehen, hintereinander angelegt und dann an den Zinken 50 miteinander verleimt. So entsteht ein Endlosstrang bzw. Endlos-Plattenstreifen 52 aus Plattenstreifen 44, der dann in einem Schritt 54 auf eine vorbestimmte Länge abgelängt und auf ein Dieken-Endmaß 56 gehobelt wird, wodurch ein so genanntes Konstruktionsvollholz bzw. eine Lamelle 58 hergestellt wird. The individual strip flanks 46 are then in a step 48 provided at their ends with prongs 50, in particular in the form of longitudinal finger joints, one behind the other and then glued to the prongs 50 together. This creates an endless strand or endless board strip 52 from board strips 44, which is then cut to a predetermined length in a step 54 and planed to a plank final dimension 56, whereby a so-called solid structural timber or a lamella 58 is produced.
Schließlich wird dann aus derartigen Lamellen 58 mittels übereinander Anordnen und Verleimen ein Balken in Gestalt eines BSH-Balkens 60 (Bauschichtholz- Balken), eines Duo-Balkens 62 oder eines Trio-Balkens 64 hergestellt. Alternativ kann auch ein so genanntes Brettsperrholz 66, insbesondere der Qualität CLT, derart hergestellt werden. Die Fig. 2 zeigt teilweise einen Schwachholz-Stamm 18 in stirnseitiger Draufsicht, wobei ein Zopfradius 68 sowie ein Stockradius 70 angezeichnet sind. Mittels eines Sägeschnittes 72 dabei ein Halbholz 22 mit seiner Mittelschnittfläche 24 und gegenüberliegend seiner Außenschnittfläche 26 ausgebildet. Die Fig. 2 veranschaulicht weiter einen oben bereits genannten Winkel 74 zwischen einer Hauptebene 76 der Stufung bzw. Profilierung 36 und der Mittelschnittfläche 24. Dieser Winkel 74 beträgt in Abhängigkeit der Durchmesser des verarbeiteten Schwachholz-Stammes vorteilhaft zwischen 55° und 72°, insbesondere zwischen 60° und 65°. Finally, a beam in the form of a BSH beam 60 (laminated timber beam), a duo beam 62 or a trio beam 64 is then produced from such lamellae 58 by arranging them one on top of the other and gluing. Alternatively, a so-called cross-laminated timber 66, in particular of the CLT quality, can also be produced in this way. 2 shows a partial view of a small log 18 from the front, with a plait radius 68 and a stock radius 70 being marked. By means of a saw cut 72, a half-timber 22 is formed with its central cut surface 24 and its outer cut surface 26 opposite. Fig. 2 further illustrates an angle 74, already mentioned above, between a main plane 76 of the gradation or profiling 36 and the central cut surface 24. Depending on the diameter of the processed small wood trunk, this angle 74 is advantageously between 55° and 72°, in particular between 60° and 65°.
Abschließend sei angemerkt, dass sämtlichen Merkmalen, die in den Anmeldungsunterlagen und insbesondere in den abhängigen Ansprüchen genannt sind, trotz des vorgenommenen formalen Rückbezugs auf einen oder mehrere bestimmte Ansprüche, auch einzeln oder in beliebiger Kombination eigenständiger Schutz zukommen soll. Finally, it should be noted that all the features that are named in the application documents and in particular in the dependent claims, despite the formal reference made to one or more specific claims, should also be entitled to independent protection, either individually or in any combination.
Bezugszeichenliste Reference List
10 Verfahren zum Herstellen von Konstruktionsbauholz10 methods of making structural lumber
12 Konstruktionsbauholz 12 Construction Lumber
14 Schwach holz 14 weak wood
16 Schritt Bereitstellen und Auftrennen Schwachholz-Stamm16 step Preparing and separating the small log
18 Schwachholz-Stamm 18 Smallwood Log
20 Querschnitt 20 cross section
22 Halbholz 22 half wood
24 Mittelschnittfläche 24 center cut surface
26 Außenschnittfläche 26 outer cut surface
28 Schritt Besäumen 28 step trimming
30 Flanke 30 flank
32 Schritt Trocknen 32 step drying
34 Schritt Profilieren der Flanken 34 Step Flanking the flanks
36 Stufung bzw. Profilierung 36 graduation or profiling
38 Schritt Verleimen 38 step gluing
40 einschichtige Endlos-Platte 40 single-layer endless disc
42 Schritt Abtrennen Plattenstreifen 42 Step Separating the panel strips
44 Plattenstreifen 44 plate strips
46 Streifenflanke 46 strip flank
48 Schritt Zinken und Verleimen Plattenstreifen 48 step Dovetailing and gluing of strips of panels
50 Zinke 50 prong
52 Endlosstrang bzw. Endlos-Plattenstreifen 52 endless strand or endless plate strip
54 Schritt Ablängen und Hobeln 54 step of cutting to length and planing
56 Dieken-Endmaß 56 plank gauge block
58 Lamelle bzw. Konstruktionsvollholz 58 lamella or solid construction timber
60 BSH-Balken 60 BSH beams
62 Duo-Balken Trio-Balken Brettsperrholz Zopfradius Stockradius Sägeschnitt Winkel Hauptebene der Stufung bzw. Profilierung 62 duo bars Trio beam cross laminated timber spigot radius stick radius saw cut angle main level of gradation or profiling

Claims

-9- Ansprüche -9- Claims
1. Verfahren (10) zum Herstellen von Konstruktionsbauholz (12) aus Schwachholz (14) mit den Schritten: 1. A method (10) for producing structural lumber (12) from small wood (14), comprising the steps of:
- Bereitstellen eines Schwachholz-Stammes (18), der sich in eine Längsrichtung erstreckt, dabei einen im Wesentlichen kreisrunden Querschnitt (20) aufweist und sich in seiner Längsrichtung konisch verjüngt, - providing a small log (18) which extends in a longitudinal direction, has a substantially circular cross-section (20) and tapers conically in its longitudinal direction,
- Auftrennen des Schwachholz-Stammes (18) in zwei Halbhölzer (22), die dabei je begrenzt sind von einer Mittelschnittfläche (24) und einer dazu parallelen Außenschnittfläche (26), - Separating the small log (18) into two half-timbers (22), which are each delimited by a central cut surface (24) and an outer cut surface (26) parallel thereto,
- Besäumen der beiden Halbhölzer (22) mit jeweils zwei Flanken (30), wobei die beiden Flanken (30) entlang der konischen Form des ursprünglichen Schwachholz-Stammes (18) aufeinander zulaufend besäumt werden, - Trimming the two half-timbers (22) with two flanks (30) each, with the two flanks (30) being trimmed along the conical shape of the original small-wood trunk (18) so that they converge,
- Herstellen einer einschichtigen Endlos-Platte (40) mittels aneinander Anlegen und Verleimen von mehreren besäumten Halbhölzern (22) mit ihren seitlichen Flanken (30), wobei die Halbhölzer (22) mit ihren aufeinander zulaufenden Flanken (30) wechselseitig aneinander angelegt werden. - Production of a single-layer endless panel (40) by laying and gluing several trimmed half-timbers (22) with their lateral flanks (30), whereby the half-timbers (22) are laid against one another alternately with their flanks (30) running towards one another.
2. Verfahren zum Herstellen von Konstruktionsbauholz aus Schwachholz nach Anspruch 1 , wobei beim Herstellen der einschichtigen Endlos-Platte (40) die besäumten Halbhölzer (22) zunächst getrocknet werden. 2. A method for producing structural lumber from small wood according to claim 1, wherein the trimmed half timber (22) are first dried when producing the single-layer endless panel (40).
3. Verfahren zum Herstellen von Konstruktionsbauholz aus Schwachholz nach Anspruch 1 oder 2, wobei beim Herstellen der einschichtigen Endlos-Platte (40) an den seitlichen Flanken (30) der besäumten Halbhölzer (22) mindestens eine Stufung (36) ausgebildet wird, insbesondere nach dem Trocknen der besäumten Halbhölzer (22). 3. A method for producing structural timber from small timber according to claim 1 or 2, wherein at least one gradation (36) is formed on the lateral flanks (30) of the trimmed half timber (22) during the production of the single-layer endless board (40), in particular after drying the trimmed half-timbers (22).
4. Verfahren zum Herstellen von Konstruktionsbauholz aus Schwachholz nach einem der Ansprüche 1 bis 3, gekennzeichnet, durch den Schritt: - Abtrennen mindestens eines Plattenstreifens (44) von der Endlos-Platte (40) mit im Wesentlichen zueinander parallelen Streifenflanken (46). 4. A method for producing structural lumber from small wood according to any one of claims 1 to 3, characterized by the step of: - Detaching at least one panel strip (44) from the endless panel (40) with strip flanks (46) essentially parallel to one another.
5. Verfahren zum Herstellen von Konstruktionsbauholz aus Schwachholz nach Anspruch 4, gekennzeichnet durch den Schritt: 5. A method for producing structural lumber from small wood according to claim 4, characterized by the step of:
- Herstellen eines Endlos-Plattenstreifens (52) mittels hintereinander Anlegen und Verleimen von mehreren Plattenstreifen (44), wobei die Plattenstreifen (44) an ihren Enden insbesondere mit Zinken (50) versehen werden. - Production of an endless panel strip (52) by successively applying and gluing a plurality of panel strips (44), the panel strips (44) being provided at their ends in particular with prongs (50).
6. Verfahren zum Herstellen von Konstruktionsbauholz aus Schwachholz nach Anspruch 5, gekennzeichnet durch den Schritt: 6. A method for producing structural lumber from small wood according to claim 5, characterized by the step of:
- Hobeln des Endlos-Plattenstreifens (52) auf ein Dieken-Endmaß (56). - Planing the endless board strip (52) to a plank final dimension (56).
7. Verfahren zum Herstellen von Konstruktionsbauholz aus Schwachholz nach Anspruch 5 oder 6, gekennzeichnet durch den Schritt: 7. A method for producing structural lumber from small wood according to claim 5 or 6, characterized by the step:
Herstellen eines Balkens (60, 62, 64) mittels übereinander Anordnen und Verleimen mehrerer, zuvor auf vorbestimmte Länge abgelängter Endlos- Plattenstreifen (52). Production of a beam (60, 62, 64) by arranging and gluing several endless plate strips (52) previously cut to a predetermined length one on top of the other.
8. Konstruktionsbauholz (12) hergestellt nach einem Verfahren gemäß einem der Ansprüche 1 bis 7. 8. Structural lumber (12) made by a method according to any one of claims 1 to 7.
EP21766107.3A 2020-08-03 2021-08-03 Method for producing construction wood from small-dimensioned wood, and construction wood Pending EP4188657A1 (en)

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DE102020120386.1A DE102020120386A1 (en) 2020-08-03 2020-08-03 Method of making structural lumber from small wood
PCT/DE2021/100668 WO2022028654A1 (en) 2020-08-03 2021-08-03 Method for producing construction wood from small-dimensioned wood, and construction wood

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Family Cites Families (10)

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DE2159337A1 (en) * 1971-11-30 1973-06-07 Albert Rufle METHOD AND DEVICE FOR MANUFACTURING SAW WOOD
IT1116595B (en) * 1979-06-05 1986-02-10 Franciosi Giovanni METHOD AND DEVICE FOR THE SEGATION OF TRUNKS EQUIPPED WITH A NATURAL CONICITY TO OBTAIN THE MAXIMUM PERFORMANCE IN PARALLEL BEAMS WITH RECTANGULAR SECTION WITH TOLERANCES OF USE
DE2947611C2 (en) 1979-11-26 1984-01-19 Kurt Ing.(grad.) 8625 Sonnefeld Feyler Process for the production of board lamellas
DE4135247A1 (en) 1991-10-25 1993-04-29 Berthold Fries Structural timbers cut from the tree trunk - constitute two diagonally opposite quartering glued together with compensating bevelled surfaces
SE525081C2 (en) 2001-04-04 2004-11-23 Nils-Olof Lindquist Method for manufacturing glue boards and glue joists from square boards and planks
AT11958U1 (en) * 2010-09-07 2011-08-15 Hans-Peter Ing Leitinger PROCESS FOR PROCESSING RAW ROUNDWOOD AND WEDGE-LINKED WOOD COMPOSITE PRODUCTS
AT515171B1 (en) * 2013-12-10 2016-02-15 Hans-Peter Ing Leitinger Sawn board from side board ware and process for its production
AT516697A1 (en) 2015-01-09 2016-07-15 Johann Offner Beteiligungs-Gesellschaft M B H Slats of natural wood, boards, beams and plates made of them
EP3042744A1 (en) * 2015-01-09 2016-07-13 Johann Offner Betelligungs-Gesellschaft m.b.H. Lamellae made of natural wood, planks, beams and panels produced with same
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