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EP0013965A1 - Manufacturing method of massive wooden profiles - Google Patents

Manufacturing method of massive wooden profiles Download PDF

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Publication number
EP0013965A1
EP0013965A1 EP80100289A EP80100289A EP0013965A1 EP 0013965 A1 EP0013965 A1 EP 0013965A1 EP 80100289 A EP80100289 A EP 80100289A EP 80100289 A EP80100289 A EP 80100289A EP 0013965 A1 EP0013965 A1 EP 0013965A1
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EP
European Patent Office
Prior art keywords
diameter
logs
carried out
natural wood
log
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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.)
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Application number
EP80100289A
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German (de)
French (fr)
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EP0013965B1 (en
Inventor
Herbert Siller
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Priority to AT80100289T priority Critical patent/ATE2491T1/en
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    • 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
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes
    • 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
    • B27M3/002—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected at their ends

Definitions

  • the finite initial length of a trunk section 11 can preferably be between 1 and 3 m depending on the raw material price of the natural wood, a high raw material price making even small trunk section lengths rationally processable.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

1. Method of manufacturing round or profiled solid wooden profiles from natural wood boles, or from natural wood logs derived from branches, preferably having a diameter appropriate for small-sized timber, for poles and for wall structures, ceiling structures and supporting structures built in the log-cabin style, or un palisade style, this method comprising the following processing steps : The natural wood boles are cut to a starting longlength and are sorted according to diameter-groups, the further processing being carried out, in each case, solely in the same diameter-group ; a plurality of logs are joined together, at their respective end regions, by wedge-type finger-joining and glueing ; thereafter, the log is further processed and, in particular, profiling is carried out, to produce a final cross-sectional shape over the entire length of the logs which have been glued together, this profiling operation being carried out by shaping, characterized in that, after the cutting-to-length and sorting operations, at least one plane longitudinal cut (3) is made in each log (11), this cut being located outside the final profile, or forming part of the final profile, parallel to the central longitudinal axis (4) of the logs and at distance (5) from this axis, corresponding, at the maximum, to the distance between the central longitudinal axis (4) and a tangent drawn to that diameter (6) of the tree top-end (7) of the log which defines a solid cross-section, and in that the operation of glueing together the end-surfaces of the logs (11) is carried out with the longitudinal cuts (3) aligned in the same plane and positioned one beside another.

Description

Die Erfindung betrifft ein Verfahren der im Oberbegriff des Patentanspruches 1 näher gekennzeichneten Art.The invention relates to a method of the type characterized in more detail in the preamble of claim 1.

Ein Verfahren dieser Art ist aus DE-PS 915 980 bekannt. Da die Keilverzinkung und Verleimung bei diesem Verfahren unmittelbar nach dem Ablängen und Sortieren (Verfahrensschritt 1.) vorgenommen wird, ist es in der Praxis wenn überhaupt, so nur mit ideal gewachsenen Stämmen funktionsfähig. Wenn jedoch, wie allgemein üblich, die Umfangsstruktur der Naturholzstämme zu unregelmäßig ist und Abweichungen von der Geradwüchsigkeit vorliegen, bereitet das Ausrichten und Halten der Naturholz-Stammabschnitte bei der Weiterverarbeitung erhebliche bzw. unüberwindbare Schwierigkeiten. Außerdem muß später das gesamte zur Herstellung der Endquerschnittsform zu entfernende Volumen der Naturholz-Stammabschnitte abgefräst werden, was ein sehr hohes Fräsvolumen mit entsprechend hohem Werkzeug- und Energieverbrauch bedingt.A method of this type is known from DE-PS 915 980. Since the wedge galvanizing and gluing in this process is carried out immediately after cutting to length and sorting (process step 1), in practice it is only functional, if at all, with ideally grown trunks. However, if, as is generally the case, the circumferential structure of the natural wood logs is too irregular and there are deviations from straight growth, the alignment and holding of the natural wood log sections presents considerable or insurmountable difficulties during further processing. In addition, the entire volume of the natural wood trunk sections to be removed to produce the final cross-sectional shape must be milled off, which requires a very high milling volume with a correspondingly high consumption of tools and energy.

Der Erfindung liegt demgegenüber die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art zu schaffen, mit welchem das bekannte Herstellungsverfahren rationeller auch ausgehend von nicht ideal gewachsenen Naturholzstämmen durchführbar ist. Diese Aufgabe wird durch das Kennzeichen des Patentanspruches 1 gelöst.In contrast, the invention is based on the object of creating a method of the type mentioned at the outset with which the known production method can be carried out more rationally, also starting from non-ideally grown natural wood logs. This object is achieved by the characterizing part of patent claim 1.

Durch die Anbringung mindestens eines Längsschnittes vor der Keilverzinkung wird mindestens eine Anschlag-und Führungsfläche für die Weiterverarbeitung geschaffen. Durch die Anbringung dieser Anschlag- und Führungsfläche bzw. -flächen an den Naturholz-Stammabschnitten noch vor dem Keilverzinken ist gewährleistet, daß die Ausrichtung der Keilzinken an den Stammabschnitten jeweils in einer festen Relation zu der Ebene des Längsschnittes bzw. den Ebenen der Längsschnitte stehen. Folglich bilden die an den Stammabschnitten angebrachten Längsschnitte nach dem Verleimen Flächen, die sich über die gesamte Länge des Verleimungsproduktes erstrecken und nicht nur für die Keilverzinkung und anschließende Verleimung, sondern auch bei einer Weiterverarbeitung, z.B. der Profilierung des Endquerschnittes des Verleimungsproduktes mindestens eine Führungsfläche darstellen. Die Anbringung des bzw. der Längsschnitte vor der Profilierung der Endquerschnittsform hat den weiteren Vorteil, daß das durch die Anbringung des bzw. der Längsschnitte entfernte Volumen der Naturholz-Stammabschnitte nicht mehr bei dem Fräsvorgang zur Herstellung der Endquerschnittsform zerspant zu werden braucht.By making at least one longitudinal cut in front of the finger jointing, at least one stop and guide surface is created for further processing. By attaching this stop and guide surface or surfaces to the natural wood trunk sections before finger jointing, it is ensured that the alignment of the finger joints on the trunk sections is in each case in a fixed relation to the plane of the longitudinal section or the planes of the longitudinal sections. Consequently, the longitudinal cuts made on the trunk sections after the gluing form areas which extend over the entire length of the gluing product and not only for finger jointing and subsequent gluing, but also during further processing, e.g. the profiling of the end cross-section of the gluing product represent at least one guide surface. The attachment of the longitudinal section or sections before the profiling of the final cross-sectional shape has the further advantage that the volume of the natural wood trunk sections removed by the attachment of the longitudinal section or sections no longer needs to be machined during the milling process to produce the final cross-sectional shape.

Die Anbringung der Längsschnitte bereits vor der Keilverzinkung erleichtert auch Lagerungen der Naturholz-Stammabschnitte und gegebenenfalls des Verleimungsproduktes und macht solche Lagerungen weniger raumaufwendig. Z.B. werden auch Zwischenlagerungen oftmals zu Trockenzwecken vorgenommen.The application of the longitudinal cuts before the finger jointing also facilitates storage of the natural wood trunk sections and possibly the gluing product and makes such storage operations less space-consuming. E.g. intermediate storage is often carried out for drying purposes.

Durch die Merkmale der Patentansprüche 2 und 3 wird mit der Anbringung der Längsschnitte werkzeug- und energiesparend ein großer Teil des bis zur Herstellung der Endquerschnittsform des Verleimungsproduktes anfallenden Abfallvolumens entfernt, so daß das durch den Fräsvorgang der Endquerschnittsform zu entfernende Volumen schon erheblich reduziert ist. Wenn das Endprofil z.B. eine Querschnittsform mit - soweit ungeformt - geraden Seiten aufweist, so kann die Endprofilierung gemäß Merkmal 3. des Oberbegriffes des Anspruches 1 selbstverständlich auch entfallen.Due to the features of claims 2 and 3, with the attachment of the longitudinal cuts tool and energy-saving, a large part of the waste volume arising up to the production of the final cross-sectional shape of the gluing product is removed, so that the Vo to be removed by the milling process of the final cross-sectional shape lumen is already considerably reduced. If, for example, the end profile has a cross-sectional shape with - so far unformed - straight sides, the end profile according to feature 3 of the preamble of claim 1 can of course also be omitted.

Die aus der Anbringung des bzw. der Längsschnitte resultierende Unrundheit des Verleimungsproduktes bleibt einem abschließenden Formfräsen durch das Kennzeichen des Anspruches 4 ohne jeglichen Nachteil.The out-of-roundness of the gluing product resulting from the attachment of the longitudinal section or sections remains a final form milling by the characterizing part of claim 4 without any disadvantage.

Der Gegenstand der Erfindung wird anhand der Figuren beispielsweise näher erläutert. Es zeigen:

  • Figur 1 eine perspektivische Ansicht eines abgelängten Naturholzstammes, d.h. eines Stammabschnittes,
  • Figur 2 eine Stirnansicht entsprechend Pfeil II in Figur 1 auf das Anschnittende des Naturholzstammes,
  • Figur 3 eine Seitenansicht des Naturholzstammes gemäß Figur 1 nach Anbringung der Keilzinken an seinen beiden Stirnenden,
  • Figur 4 eine Seitenansicht des aus mehreren miteinander keilverzinkten Stammabschnitten hergestellten Zwischenproduktes vor dessen Endprofilierung,
  • Figur 5 eine Stirnansicht entsprechend Pfeil V in Figur 4,
  • Figur 6 mehrere Endquerschnittsformen des fertigen Vollholzprofiles und
  • Figur 7 eine Stirnansicht eines mit vier Längsschnitten versehenen Stammabschnittes.
The subject matter of the invention is explained in more detail with reference to the figures, for example. Show it:
  • FIG. 1 shows a perspective view of a cut natural wood trunk, ie a trunk section,
  • FIG. 2 shows an end view corresponding to arrow II in FIG. 1 on the cut end of the natural wood trunk,
  • FIG. 3 shows a side view of the natural wood trunk according to FIG. 1 after the finger tines have been attached to its two ends,
  • FIG. 4 shows a side view of the intermediate product produced from a plurality of wedge-galvanized trunk sections before its final profiling,
  • FIG. 5 shows an end view corresponding to arrow V in FIG. 4,
  • Figure 6 several final cross-sectional shapes of the finished solid wood profile and
  • Figure 7 is an end view of a trunk section provided with four longitudinal sections.

Zur Durchführung des erfindungsgemäßen Verfahrens werden die Naturholzstämme 1 auf eine endliche, etwa gleiche Ausgangslänge 2 abgelängt (Stammabschnitt 11) und nach Durchmessergruppen sortiert, wobei der Stufensprung zwischen benachbarten Durchmessergruppen um 20 mm beträgt. Die Weiterverarbeitung der Naturholzstämme 1 erfolgt lediglich in derselben Durchmessergruppe. Hierbei wird zunächst an jedem Naturholzstamm mindestens ein ebener, außerhalb des Endprofils liegender Längsschnitt 3 parallel zu dessen Mittellängsachse 4 und in einem Abstand 5 zu dieser angebracht, der mindestens der Mittellängsachse 4 so nahekommt wie im wesentlichen eine an den Vollquerschnittsdurchmesser 6 des Zopfendes 7 gelegte Tangente. Vorzugsweise werden als Führungsflächen zwei zueinander parallele Längsschnitte 3 an diametral gegenüberliegenden Seiten des Naturholzstammes 1 als Führungsflächen für die weitere Verarbeitung angebracht. Es können jedoch auch z.B. drei jeweils um 600 gegeneinander versetzte Längsschnitte 3 vorhanden sein. Besonders vorteilhaft ist es jedoch, vier Längsschnitte 3 (Figur 7) vorzusehen, die im Querschnitt nach Art der Seiten eines Quadrats zueinanderstehen und bereits eine beachtliche Vorzerspanung bewirken, die nachfolgende Bearbeitungsgänge entlastet.To carry out the method according to the invention, the natural wood trunks 1 are cut to a finite, approximately the same starting length 2 (trunk section 11) and sorted according to diameter groups, the increment between adjacent diameter groups being 20 mm. The further processing of the natural logs 1 takes place only in the same diameter group. In this case, at least one flat longitudinal section 3 lying outside the end profile is made parallel to its central longitudinal axis 4 and at a distance 5 from it that is at least as close to the central longitudinal axis 4 as is essentially a tangent to the full cross-sectional diameter 6 of the braid end 7 . Preferably, two parallel cuts 3 are made as guide surfaces on diametrically opposite sides of the natural log 1 as guide surfaces for further processing. It can, however, for example, three each be present by 60 0 staggered longitudinal cuts. 3 However, it is particularly advantageous to provide four longitudinal cuts 3 (FIG. 7) which are in cross-section in the manner of the sides of a square and which already bring about considerable pre-machining, which relieves subsequent processing steps.

Nach dem Anbringen der Längsschnitte werden die abgelängten Naturholzstämme 1 in ihren jeweiligen Stirnbereichen (Zopfende 7 und Anschnittende 8) auf an sich bekannten Maschinen mit jeweils einer Keilverzinkung 9 versehen. Mit in an sich bekannter Weise ineinandergreifenden Keilverzinkungen 9 werden koaxial und bezüglich des bzw. der Längsschnitte 3 gleichebig mehrere in Axialrichtung aneinandergereihte Stammabschnitte 11 miteinander verleimt (Figur 4). Sodann wird die Profilierung der Endquerschnittsform über die Gesamtlänge der miteinander verleimten Stammabschnitte vorgenommen. Die Endprofilierung erfolgt durch lediglich in Axialrichtung 10 arbeitende Profilierungswerkzeuge, insbesondere Fräswerkzeuge.After the longitudinal cuts have been made, the cut natural wood trunks 1 are provided in their respective end regions (braid end 7 and cut end 8) on machines known per se, each with a finger joint 9. With interlocking finger joints 9 in a known manner, several trunk sections 11 strung together in the axial direction are glued together coaxially and with respect to the longitudinal cuts 3 (FIG. 4). The profiling of the final cross-sectional shape is then carried out over the total length of the trunk sections glued together taken. The end profiling is carried out by profiling tools, in particular milling tools, which only work in the axial direction 10.

Die endliche Ausgangslänge eines Stammabschnittes 11 kann vorzugsweise zwischen 1 und 3 m je nach Rohstoffpreis des Naturholzes betragen, wobei ein hoher Rohstoffpreis bereits geringe Stammabschnittlängen rationell verarbeitbar macht.The finite initial length of a trunk section 11 can preferably be between 1 and 3 m depending on the raw material price of the natural wood, a high raw material price making even small trunk section lengths rationally processable.

Claims (4)

1.) Verfahren zur Herstellung von runden oder profilierten Vollholzprofilen aus Naturholzstämmen oder -astabschnitten vorzugsweise von Schwachholzdurchmesser für Pfähle sowie Wand-, Decken-, Träger u.dgl. Konstruktionen in Blockhaus- oder Palisadenbauweise mit folgenden Verfahrensschnitten: 1. Die Naturholzstämme werden auf eine endliche, vorzugsweise gleiche Ausgangslänge abgelängt und nach Durchmessergruppen sortiert, wobei die Weiterverarbeitung jeweils lediglich in derselben Durchmessergruppe erfolgt. 2. Mehrere Stammabschnitte werden in ihren jeweiligen Stirnbereichen keilverzinkt und miteinander verleimt. 3. Sodann wird der Stammabschnitt weiterverarbeitet, insbesondere die Profilierung einer Endquerschnittsform der miteinander verleimten Stammabschnitte über die Gesamtlänge durch Fräsen vorgenommenund folgendem Kennzeichen: 4. Nach dem Ablängen und Sortieren (Verfahrensschritt 1.) wird an jedem Stammabschnitt (11) mindestens ein ebener, außerhalb des Endprofils liegender oder teilweise das Endprofil bildender Längsschnitt (3) parallel zu dessen Mittellängsachse (4) und in einem Abstand (5) zu dieser angebracht, der 4-1) mindestens der Mittellängsachse (4) so nahekommt wie im wesentlichen eine an den Vollquerschnittsdurchmesser (6) des Zopfendes (7) gelegte Tangente. 1.) Process for the production of round or profiled solid wood profiles from natural wood trunks or branches, preferably of small wood diameter for piles and wall, ceiling, beams and the like. Log house or palisade construction with the following process steps: 1. The natural wood logs are cut to a finite, preferably the same starting length and sorted according to diameter groups, with the further processing only taking place in the same diameter group. 2. Several trunk sections are finger-jointed in their respective forehead areas and glued together. 3. The trunk section is then further processed, in particular the profiling of an end cross-sectional shape of the trunk sections glued to one another is carried out over the entire length by milling and the following indicator: 4. After cutting to length and sorting (method step 1.), at least one flat longitudinal section (3) lying outside the end profile or partially forming the end profile is made parallel to its central longitudinal axis (4) and at a distance (5) on each trunk section (11). attached to this, the 4-1) comes at least as close to the central longitudinal axis (4) as essentially a tangent to the full cross-sectional diameter (6) of the braid end (7). 2.) Verfahren nach Anspruch 1, gekennzeichnet durch zwei zueinander parallele Längsschnitte (3) an diametral gegenüberliegenden Seiten.2.) Method according to claim 1, characterized by two mutually parallel longitudinal cuts (3) on diametrically opposite sides. 3.) Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß vier Längsschnitte (3) vorgesehen sind, die zueinander wie die Seiten eines Quadrats stehen.3.) Method according to claim 1 or 2, characterized in that four longitudinal cuts (3) are provided which are mutually like the sides of a square. 4.) Verfahren nach mindestens einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Fräsen der Endquerschnittsform durch lediglich in Axialrichtung der Stammabschnitte (11) arbeitende Profilierungswerkzeuge vorgenommen wird.4.) Method according to at least one of claims 1 to 3, characterized in that the milling of the final cross-sectional shape is carried out by profiling tools which work only in the axial direction of the trunk sections (11).
EP80100289A 1979-01-20 1980-01-20 Manufacturing method of massive wooden profiles Expired EP0013965B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80100289T ATE2491T1 (en) 1979-01-20 1980-01-20 PROCESS FOR MANUFACTURING SOLID WOOD PROFILES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2902222A DE2902222C2 (en) 1979-01-20 1979-01-20 Process for the production of solid wood profiles
DE2902222 1979-01-20

Publications (2)

Publication Number Publication Date
EP0013965A1 true EP0013965A1 (en) 1980-08-06
EP0013965B1 EP0013965B1 (en) 1983-02-16

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EP80100289A Expired EP0013965B1 (en) 1979-01-20 1980-01-20 Manufacturing method of massive wooden profiles

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EP (1) EP0013965B1 (en)
AT (1) ATE2491T1 (en)
DE (2) DE2902222C2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0650811A1 (en) * 1993-10-30 1995-05-03 Holzbau Krämer GmbH Endless timber pole
AT409240B (en) * 2000-10-17 2002-06-25 Fuerlinger August Wooden support made of interconnected beams arranged next to one another on their long sides
EP2399736A1 (en) 2003-03-10 2011-12-28 Wood Engineering Technology Limited Value extraction from harvested trees and related laminates and processes

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3006303C2 (en) * 1980-02-20 1984-09-27 Herbert Dipl.-Ing. 6000 Frankfurt Siller Wall or ceiling component, process for its production and component made from it
AT401747B (en) * 1994-11-14 1996-11-25 Fendt Hermann Panel element of solid wood and process for its production

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH426208A (en) * 1965-10-12 1966-12-15 Bruetsch Werner Method of joining wooden parts
DE2057778A1 (en) * 1969-11-24 1971-06-09 Normand Andre Edmond Process for producing profiled wood and machine for carrying out this process
FR2398156A1 (en) * 1977-07-22 1979-02-16 Croisees & Profils Sa Wooden floor covering block mfr. - by dressing plank strips before cutting out flaws and end joining for final cutting

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE915980C (en) * 1951-11-16 1954-08-02 Franz Paetz Round wood, a component made with it and a device for its production
FR1404751A (en) * 1963-06-28 1965-07-02 Soderhamns Verkst Er A B Process for economical use of offcuts resulting from sawing wood and machine for its implementation
US3487866A (en) * 1966-08-08 1970-01-06 Runnion Ernest E Production of lumber and pulp chips from small-diameter logs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH426208A (en) * 1965-10-12 1966-12-15 Bruetsch Werner Method of joining wooden parts
DE2057778A1 (en) * 1969-11-24 1971-06-09 Normand Andre Edmond Process for producing profiled wood and machine for carrying out this process
FR2398156A1 (en) * 1977-07-22 1979-02-16 Croisees & Profils Sa Wooden floor covering block mfr. - by dressing plank strips before cutting out flaws and end joining for final cutting

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0650811A1 (en) * 1993-10-30 1995-05-03 Holzbau Krämer GmbH Endless timber pole
AT409240B (en) * 2000-10-17 2002-06-25 Fuerlinger August Wooden support made of interconnected beams arranged next to one another on their long sides
EP2399736A1 (en) 2003-03-10 2011-12-28 Wood Engineering Technology Limited Value extraction from harvested trees and related laminates and processes

Also Published As

Publication number Publication date
EP0013965B1 (en) 1983-02-16
ATE2491T1 (en) 1983-03-15
DE3061938D1 (en) 1983-03-24
DE2902222A1 (en) 1980-08-14
DE2902222C2 (en) 1983-11-10

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