EP0515875A1 - Laminated wooden section member for making frames, especially for doors or windows and their manufacturing method - Google Patents
Laminated wooden section member for making frames, especially for doors or windows and their manufacturing method Download PDFInfo
- Publication number
- EP0515875A1 EP0515875A1 EP92107607A EP92107607A EP0515875A1 EP 0515875 A1 EP0515875 A1 EP 0515875A1 EP 92107607 A EP92107607 A EP 92107607A EP 92107607 A EP92107607 A EP 92107607A EP 0515875 A1 EP0515875 A1 EP 0515875A1
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- Prior art keywords
- wooden profile
- lamellae
- strips
- glued
- profile strip
- 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.)
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- 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
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/04—Wing frames not characterised by the manner of movement
- E06B3/06—Single frames
- E06B3/08—Constructions depending on the use of specified materials
- E06B3/10—Constructions depending on the use of specified materials of wood
Definitions
- the invention relates to a laminated wooden profile strip for creating blind and / or casement frames in the manufacture of windows, doors or the like, with several, each having a rectangular cross-section, the facing surfaces of which are connected to each other by gluing and the surfaces that extend approximately perpendicular to the glued surfaces are reworked to size by milling.
- the invention also encompasses a method for producing a laminated wooden profile strip, in which several lamellae are connected to one another by gluing and the final profile cross section is reworked by milling.
- wooden profile strips are used, from which sections are formed by miter cuts and assembled into frames.
- Laminated wooden profile strips also called scantlings, are therefore known, which are composed of several solid wood slats.
- the lamellae each have a rectangular cross-section, for example in the form of a narrow board, and are connected to one another by gluing, the glued surfaces being in the main extension planes of the lamellae.
- Laminated Wooden window profiles "of the Wood Information Service of the Wood Working Group eV describe such wooden profile strips of the type described above with all their advantages and disadvantages, requirements and properties.
- the slats sometimes called board paper, consist of solid wood with a cross section suitable for the cross section of the wooden profile strip to be created. As a rule, at least three lamellas are joined to form a wooden profile strip.
- the slats are either rectangular or in L, T or Z shape placed on top of each other and glued together. A milling process is then carried out on all four sides of the wooden profile strip in order to achieve the required dimensional accuracy of the wooden profile strip. Milling on all four sides of the wooden profile strip results in considerable waste. Milling on the two surfaces of the wooden profile strip, which lie parallel to the main planes of the slats, is necessary because the slats can only be produced with relatively large tolerances by planing. With such wooden profile strips there are specified requirements for the slats on the one hand, the structure of the Cross-section of the wooden profile strips, the surface appearance and the technical properties.
- the structure of the cross-section of the wooden profile strips should be symmetrical and the wood structure of the individual slats should be the same.
- the outer slats should be of the same thickness and consist of one type of wood. In particular, pine, spruce, larch, Douglas fir, to a lesser extent also oak and the tropical woods Meranti, mahogany etc. are used.
- the slats are glued with thermoplastic glues, which should also be weatherproof. However, the glue joint should not be exposed to direct external weathering. As a result, the glue joint must run parallel to the main plane of the window.
- the outer slats should be at least 15 mm thick.
- the lamellae must be of such a nature and arrangement that each other that a risk of tearing is avoided.
- a freedom from warping can only be achieved to a limited extent because the slats as solid wood are a natural material, i.e. not a wood material. It must be z. B. on the outside relative to the room side. If, for design reasons, it cannot be avoided to reveal the glue joint to the outside weathering, then the gluing must be carried out using resorcinol resin glue. Otherwise, polyvinyl acetates are sufficient as glues, which must correspond to stress group B4 according to DIN. When manufacturing the laminated wooden profile strips, attention must also be paid to the moisture content of the solid wood in the area of the slats.
- the glue joint can be prepared on the slats as planed smooth surfaces.
- a tine or wave shape is also permissible, which of course requires additional processing.
- any annual ring position is possible. However, this should be uniform within a wooden profile strip, i.e. not different. This is necessary to ensure dimensional stability and to avoid stress cracks.
- chipboard has been known for a long time. These represent the typical wood-based material in which wood chips are glued together so that a largely homogeneous material is created within the layering.
- phenolic resin-glued chipboards are, for example, hydrophilic and therefore not suitable for outdoor use.
- wooden profile strips are used in furniture construction.
- Isocyanate glued chipboard are used indoors, e.g. B. used in the creation of a floor, for cladding purposes in the bathroom or even once as the weathering not directly exposed roof formwork. Chipboards with special quality requirements are still permitted for the outer skin of walls of prefabricated houses if weather protection is applied there. Such weather protection consists of a facing made of plaster, clinker or the like. From this it can be seen that it has so far not been possible to build a window made of a wood-based material that is usually accessible to external weathering.
- the well-known insufficient dimensional stability of chipboard under the influence of moisture represents an obstacle here.
- the invention has for its object to provide wooden profile strips for the creation of frames in the manufacture of Windows, doors or the like are suitable to show that can be manufactured more easily than before.
- slats consist of strips of isocyanate-glued, medium-density fiberboard (MDF).
- MDF medium-density fiberboard
- a wood preservative can also be incorporated homogeneously in the manufacture of the MDF boards in a simple manner.
- the frames on windows, doors or the like created from such wooden profile strips are surprisingly weatherproof. While wood-based materials have been known for decades, no windows have yet been created from them. This technical misconception can be remedied with isocyanate-glued MDF boards.
- waste wood in particular industrial waste wood
- waste wood can also be used to produce the lamellae from the medium-density fiberboard, from which a high-quality product is readily produced.
- Slats made from strips of isocyanate-glued MDF boards and the wooden profile strips created from them have long-term dimensional stability.
- the wooden profile strips can also be easily produced in large lengths, for example as profile strips in lengths of 5 or 6 m.
- the arrangement of longitudinal joints is eliminated.
- the new wooden profile strip is not only suitable for the creation of wooden windows, but also for the creation of wood / aluminum construction elements.
- the wooden profile strip can at least on its essential surface with a coating, planking o. B. be surrounded by a plastic film.
- This surface protection is advantageously applied at the factory after the lamellae have been glued and thus mitred before the wooden profile strip is cut. This eliminates the need for surface processing in the companies involved in the production of windows, doors or the like.
- the process for producing a laminated wooden profile strip is characterized according to the invention in that the lamellae are cut from strips of isocyanate-glued, sanded, medium-density fiberboard (MDF), and in that the milling is carried out only on the mutually opposite surfaces which extend perpendicular to the sanded surfaces he follows.
- MDF medium-density fiberboard
- the slats can advantageously be cut with a lower tolerance than solid wood, which further reduces waste.
- the wooden profile strip can be provided with a coating, planking or the like before it is cut to frame profile sections. This also simplifies the manufacture of the windows as a whole.
- the key point of the invention is the use of isocyanate-glued medium-density fiberboard (MDF) as slats for wooden profile strips for the production of windows, doors or the like.
- MDF medium-density fiberboard
- Medium-density fiberboard 1 for example in the dimensions 5 m x 2.5 m, the two surfaces of which lie in the main extension planes are ground true to size, are cut into strips, so that lamellae 2 result from this.
- the width of the slats 2 can vary depending on the requirement and cross-sectional structure of the wooden profile strip.
- Several such lamellae 2 are joined to form a raw scantling 3, adhesive bonding to glue joints 4 taking place.
- the raw edge 3 is already dimensionally accurate in the area of its two surfaces, which are parallel to the glue joints 4.
- the raw sheet 3 here has a Z-shaped cross section.
- the wooden profile strips 5 are cut into correspondingly long sections 9, the connection in the area of the mitres 10 to one another being carried out in a known manner, so that a wooden frame or window frame 11 is produced from the wooden profile strip 5, as is the case for windows, Doors or the like is needed.
Abstract
Description
Die Erfindung bezieht sich auf eine lamellierte Holzprofilleiste zur Erstellung von Blend- und/oder Flügelrahmen bei der Herstellung von Fenstern, Türen o. dgl., mit mehreren, jeweils rechteckigen Querschnitt aufweisenden Lamellen, deren einander zugekehrte Oberflächen miteinander über eine Verleimung verbunden sind und deren sich etwa senkrecht zu den verleimten Oberflächen erstreckende Oberflächen durch eine Fräsung maßgenau nachgearbeitet sind. Die Erfindung umfaßt auch ein Verfahren zur Herstellung einer lamellierten Holzprofilleiste, bei dem mehrere Lamellen über eine Verleimung miteinander verbunden werden und der endgültige Profilquerschnitt durch Fräsen nachgearbeitet wird. Bei der Herstellung von Holsfenstern und ähnlichen Rahmenteilen werden Holzprofilleisten eingesetzt, aus denen durch Gehrungsschnitte Abschnitte gebildet und zu Rahmen zusammengefügt werden. Obwohl ein Fenster ein technisches Bauteil ist, sind die Anforderungen insbesondere an Maßgenauigkeit, Stabilität und Oberflächenaussehen erheblich gestiegen. So kann z. B. die Forderung nach Astfreiheit in der Oberfläche bei Fenstern aus Profilleisten aus Vollholz - insbesondere bei der Verwendung von Nadelhölzern - durch den Einsatz bester und damit teuerer Holzqualitäten erfüllt werden.The invention relates to a laminated wooden profile strip for creating blind and / or casement frames in the manufacture of windows, doors or the like, with several, each having a rectangular cross-section, the facing surfaces of which are connected to each other by gluing and the surfaces that extend approximately perpendicular to the glued surfaces are reworked to size by milling. The invention also encompasses a method for producing a laminated wooden profile strip, in which several lamellae are connected to one another by gluing and the final profile cross section is reworked by milling. In the manufacture of timber windows and similar frame parts, wooden profile strips are used, from which sections are formed by miter cuts and assembled into frames. Although a window is a technical component, the requirements for dimensional accuracy, stability and surface appearance have increased significantly. So z. B. the demand for free of knots in the surface of windows made of profiled strips made of solid wood - especially when using softwood - by the use of the best and therefore expensive wood qualities.
Es sind deshalb lamellierte Holzprofilleisten, auch Kanteln genannt, bekannt, die aus mehreren Lamellen aus Vollholz zusammengesetzt sind. Die Lamellen weist jeweils rechteckigen Querschnitt, etwa in Form eines schmalen Bretts, auf und sind über eine Verleimung miteinander verbunden, wobei sich die verleimten Oberflächen in den Haupterstreckungsebenen der Lamellen befinden. In der Schrift "Lamellierte Holzfensterprofile" des Informationsdiensts Holz der Arbeitsgemeinschaft Holz e.V. sind solche Holzprofilleisten der eingangs beschriebenen Art mit allen Vor- und Nachteilen, Anforderungen und Eigenschaften beschrieben. Die Lamellen, manchmal auch Brettpapier genannt, bestehen aus Vollholz mit für den Querschnitt der zu erstellenden Holzprofilleiste geeignetem Querschnitt. In der Regel sind mindestens drei Lamellen zu einer Holzprofilleiste zusammengefügt. Bei zweiteiligen Querschnitten muß besonders darauf geachtet werden, daß Holz gleicher Struktur verleimt wird, um eine Verzugsfreiheit zu erzielen. Bei der Herstellung solcher lamellierter Holzprofilleisten entfällt ein wesentlicher Arbeitsteil auf die Vorbereitung und Sortierung der Lamellen. Die einzelnen Lamellen werden durch Hobeln in die rechteckige Form gebracht. Die einzelnen Lamellen werden hinsichtlich Astfreiheit, Struktur, Abstandder Jahresringe usw. sortiert und zusammengestellt, wobei optisch nicht ganz befriedigende Lamellen im Mittelbereich der Holzprofilleiste untergebracht werden können. Verzogene Lamellen müssen aussortiert werden. Immerhin aber ist an die Auswahl und den Einsatz der Lamellen eine erhebliche Qualitätsanforderung zu stellen, wenn verwindungssteife und witterungsbeständige Holzprofilleisten und dann aus diesen entsprechende Fenster, Türen o. dgl. erstellt werden sollen. Die Lamellen werden entweder in Rechteckform oder auch in
L-, T- oder Z-Form aufeinandergelegt und miteinander verleimt. Anschließend erfolgt ein Fräsvorgang auf allen vier Seiten der Holzprofilleiste, um die geforderte Maßhaltigkeit der Holzprofilleiste zu erzielen. Durch das Fräsen auf allen vier Seiten der Holzprofilleiste entsteht ein erheblicher Abfall. Das Fräsen an den beiden Oberflächen der Holzprofilleiste, die parallel zu den Hauptebenen der Lamellen liegen, ist erforderlich, weil die Lamellen durch Hobeln nur mit relativ großen Toleranzen herstellbar sind. Bei solchen Holzprofilleisten bestehen festgelegte Anforderungen an die Lamellen einerseits, den Aufbau des Querschnitts der Holzprofilleisten, das Oberflächenaussehen und die technischen Eigenschaften. Der Aufbau des Querschnitts der Holzprofilleisten soll symmetrisch und die Holzstruktur der einzelnen Lamellen gleich sein. Die äußeren Lamellen sollen gleich dick sein und aus einer Holzart bestehen. Zum Einsatz kommen insbesondere Kiefer, Fichte, Lärche, Douglasie, in geringem Maß auch Eiche sowie die Tropenhölzer Meranti, Mahagoni usw. Die Lamellen werden mit thermoplastischen Leimen verleimt, die auch wetterbeständig sein sollen. Die Leimfuge soll jedoch der direkten Außenbewitterung nicht ausgesetzt werden. Demzufolge muß die Leimfuge parallel zur Haupterstreckungsebene des Fensters verlaufen. Die äußeren Lamellen sollen mindestens 15 mm dick sein. Die Lamellen müssen von solcher Beschaffenheit und Anordnung zueinander sein, daß eine Rißgefahr vermieden wird. Eine Verzugsfreiheit kann nur bedingt erreicht werden, weil die Lamellen als Vollholz einen natürlichen Werkstoff darstellen, also keinen Holzwerkstoff. Dabei muß auf die unterschiedliche Beanspruchung von Holzprofilleisten an Fenstern z. B. auf der Außenseite relativ zur Raumseite geachtet werden. Wenn es sich aus konstruktiven Gründen nicht vermeiden läßt, die Leimfuge der Außenbewitterung preiszugeben, dann muß die Verleimung unter Einsatz eines Resorzinharzleims erfolgen. Ansonsten genügen Polyvenylacetate als Leime, die der Beanspruchungsgruppe B4 gemäß DIN entsprechen müssen. Bei der Herstellung der lamellierten Holzprofilleisten muß auch auf den Feuchtegehalt des Vollholzes im Bereich der Lamellen geachtet werden. Es darf keine Feuchtedifferenz größer 2 % vorliegen, wenn die Verleimung erfolgt. Es ist eine besondere Holzqualität für die Decklagen, also für die äußeren Lamellen, einzuhalten. Für die Mittellagen sind Abweichungen zulässig. Unzulässig sind jedoch Braun- oder Rotfäule, Insektenfraßstellen, Querrisse, Äste, deren Durchmesser größer als die halbe Lamellenbreite ist, Drehwuchs und Faserneigung größer 2 cm/m. Die dicke der Lamellen sollte
15 mm nicht unterschreiten. Die Lamellen können am besten in Rechteckform, also mit übereinstimmender Breite und Anordnung, eingesetzt werden, weil hier ohne Weiteres der Preßdruck auf alle Leimfugen gleichmäßig wirken kann. Bei L-, Z- oder T-förmiger Anordnung muß auf die Preßdruckverteilung geachtet werden, damit eine vollflächige Verbindung in der Leimfuge erreicht wird. Die Lamellen müssen in der Dicke und in der Breite jeweils eine Bearbeitungszugabe von ca. 4 mm aufweisen, woraus der erhebliche Abfall beim Fräsen der vier Seiten erkennbar ist. Die Leimfuge kann an den Lamellen als gehobelte glatte Flächen vorbereitet sein. Es ist jedoch auch eine Zinken- oder Wellenform zulässig, die freilich eine zusätzliche Bearbeitung erforderlich macht. Grundsätzlich ist jede Jahresringlage möglich. Diese sollte jedoch innerhalb einer Holzprofilleiste gleichmäßig, also nicht unterschiedlich sein. Dies ist erforderlich, um die Formstabilität zu sichern und Spannungsrisse zu vermeiden. Auch der Verlauf der Holzstruktur (Jahresringlage, Jahresringbreite, Spätholzanteil) hat einen Einfluß auf die Haltbarkeit der Leimfugen. Schließlich ist es aufwendig, Holzprofilleisten größerer Länge herzustellen. Hierzu müssen Längsstöße durch eine Keilverzinkung in Form von Minizinken gebildet und in den Mittellagen verleimt werden. Für Längsstöße in den Decklagen gelten besondere Anforderungen.Laminated wooden profile strips, also called scantlings, are therefore known, which are composed of several solid wood slats. The lamellae each have a rectangular cross-section, for example in the form of a narrow board, and are connected to one another by gluing, the glued surfaces being in the main extension planes of the lamellae. In the writing "Laminated Wooden window profiles "of the Wood Information Service of the Wood Working Group eV describe such wooden profile strips of the type described above with all their advantages and disadvantages, requirements and properties. The slats, sometimes called board paper, consist of solid wood with a cross section suitable for the cross section of the wooden profile strip to be created. As a rule, at least three lamellas are joined to form a wooden profile strip. In the case of two-part cross sections, special care must be taken to glue wood of the same structure in order to achieve freedom from warping. In the production of such laminated wooden profile strips, an essential part of the work on preparation and sorting of the The individual slats are brought into a rectangular shape by planing, the individual slats are sorted and put together with regard to the absence of knots, structure, spacing of the annual rings, etc., but not visually satisfactory Slats can be accommodated in the central area of the wooden profile strip. Warped slats must be sorted out. After all, the selection and use of the slats must be subject to considerable quality requirements if torsion-resistant and weather-resistant wooden profile strips and then appropriate windows, doors or the like are to be created from them. The slats are either rectangular or in
L, T or Z shape placed on top of each other and glued together. A milling process is then carried out on all four sides of the wooden profile strip in order to achieve the required dimensional accuracy of the wooden profile strip. Milling on all four sides of the wooden profile strip results in considerable waste. Milling on the two surfaces of the wooden profile strip, which lie parallel to the main planes of the slats, is necessary because the slats can only be produced with relatively large tolerances by planing. With such wooden profile strips there are specified requirements for the slats on the one hand, the structure of the Cross-section of the wooden profile strips, the surface appearance and the technical properties. The structure of the cross-section of the wooden profile strips should be symmetrical and the wood structure of the individual slats should be the same. The outer slats should be of the same thickness and consist of one type of wood. In particular, pine, spruce, larch, Douglas fir, to a lesser extent also oak and the tropical woods Meranti, mahogany etc. are used. The slats are glued with thermoplastic glues, which should also be weatherproof. However, the glue joint should not be exposed to direct external weathering. As a result, the glue joint must run parallel to the main plane of the window. The outer slats should be at least 15 mm thick. The lamellae must be of such a nature and arrangement that each other that a risk of tearing is avoided. A freedom from warping can only be achieved to a limited extent because the slats as solid wood are a natural material, i.e. not a wood material. It must be z. B. on the outside relative to the room side. If, for design reasons, it cannot be avoided to reveal the glue joint to the outside weathering, then the gluing must be carried out using resorcinol resin glue. Otherwise, polyvinyl acetates are sufficient as glues, which must correspond to stress group B4 according to DIN. When manufacturing the laminated wooden profile strips, attention must also be paid to the moisture content of the solid wood in the area of the slats. There must be no moisture difference greater than 2% when the gluing takes place. A special wood quality must be observed for the top layers, i.e. for the outer slats. Deviations are permitted for the middle layers. However, brown or red rot, insect bites, transverse cracks, branches, the diameter of which is greater than half the width of the lamella, swivel growth and fiber inclination greater than 2 cm / m are not permitted. The thickness of the slats should be
Do not fall below 15 mm. The lamellas can best be used in a rectangular shape, i.e. with the same width and arrangement, because here the pressure can easily act evenly on all glue joints. In the case of an L, Z or T-shaped arrangement, attention must be paid to the pressure distribution so that a full-surface connection is achieved in the glue joint. The thickness and width of the lamellas must each have a machining allowance of approx. 4 mm, from which the considerable drop in milling the four sides can be seen. The glue joint can be prepared on the slats as planed smooth surfaces. However, a tine or wave shape is also permissible, which of course requires additional processing. In principle, any annual ring position is possible. However, this should be uniform within a wooden profile strip, i.e. not different. This is necessary to ensure dimensional stability and to avoid stress cracks. The course of the wood structure (annual ring position, annual ring width, late wood content) also has an influence on the durability of the glue joints. Finally, it is expensive to manufacture wooden profile strips of greater length. For this, longitudinal joints must be formed by finger jointing in the form of mini tines and glued in the middle layers. There are special requirements for longitudinal joints in the top layers.
Die Erstellung lamellierter Holzprofilleisten für die Herstellung von Fenster, Türen o. dgl. ist insgesamt sehr aufwendig und demzufolge auch kostspielig. Nur bei Einhaltung entsprechender Vorschriften und erheblicher Sortierarbeit lassen sich Holzprofilleisten für Fenster erzeugen, die den Anforderungen gerecht werden.The creation of laminated wooden profile strips for the production of windows, doors or the like is overall very complex and consequently also expensive. Wooden profile strips for windows that meet the requirements can only be produced if the relevant regulations and considerable sorting work are observed.
Aus der EP-PS 92 699 ist ein Verfahren zur Herstellung von isocyanatverleimten mitteldichten Faserplatten bekannt. Das Zellulose enthaltende Material wird unter Druck mit Dampf behandelt und aufbereitet. Es wird eine einen Blasgang aufweisende Blasvorrichtung benutzt. Die heißen und nassen Fasern werden teilweise entwässert und zu einer Matte geformt, die unter Einwirkung von Hitze und Druck zu einer Platte verformt wird. Als Bindemittel wird organisches Isocyanat benutzt, welches auf die heißen und nassen Fasern aus dem Aufbereiter im Blasgang aufgetragen wird. Die Verwendung eines Polyisocyanats als Bindemittel hat den Vorteil der erhöhten Feuchtebeständigkeit, so daß bei solchen Platten die Trocknungskosten reduziert sind. Auch gute Eigenschaften für Außenanwendung erscheinen denkbar.From EP-PS 92 699 a process for the production of isocyanate-glued medium density fiberboard is known. The cellulose containing material is pressurized with steam treated and processed. A blowing device having a blowing passage is used. The hot and wet fibers are partially dewatered and formed into a mat, which is shaped into a plate under the action of heat and pressure. Organic isocyanate is used as a binder, which is applied to the hot and wet fibers from the conditioner in the blowing passage. The use of a polyisocyanate as a binder has the advantage of increased moisture resistance, so that the drying costs are reduced for such boards. Good properties for outdoor use also appear conceivable.
Weiterhin sind Holzspanplatten seit langem bekannt. Diese stellen den typischen Holzwerkstoff dar, bei dem Holzspäne miteinander verleimt sind, so daß ein innerhalb der Schichtung weitgehend homogener Werkstoff entsteht. Phenolharzverleimte Holzspanplatten sind jedoch beispielsweise hydrophil und daher für den Außeneinsatz nicht geeignet. In der Regel werden Holzprofilleisten im Möbelbau verwendet. Isocyanatverleimte Holzpspanplatten werden im Innenbereich, z. B. bei der Erstellung eines Fußbodens, zu Verkleidungszwecken im Bad oder auch einmal als der Bewitterung nicht unmittelbar ausgesetzte Dachschalung eingesetzt. Holzspanplatten mit besonderen Güteanforderungen sind weiterhin zulässig für die Außenhaut von Wänden von Fertighäusern, wenn dort ein Wetterschutz aufgebracht ist. Ein solcher Wetterschutz besteht aus einer Vorsatzschale aus Putz, Klinker o. dgl. Hieraus ist erkennbar, daß es bis heute nicht gelungen ist, ein der Außenbewitterung üblicherweise zugängliches Fenster aus einem Holzwerkstoff aufzubauen. Die bekannte unzureichende Maßhaltigkeit von Holzspanplatten bei Feuchteeinwirkung stellt hier einen Hinderungsgrund dar.Furthermore, chipboard has been known for a long time. These represent the typical wood-based material in which wood chips are glued together so that a largely homogeneous material is created within the layering. However, phenolic resin-glued chipboards are, for example, hydrophilic and therefore not suitable for outdoor use. As a rule, wooden profile strips are used in furniture construction. Isocyanate glued chipboard are used indoors, e.g. B. used in the creation of a floor, for cladding purposes in the bathroom or even once as the weathering not directly exposed roof formwork. Chipboards with special quality requirements are still permitted for the outer skin of walls of prefabricated houses if weather protection is applied there. Such weather protection consists of a facing made of plaster, clinker or the like. From this it can be seen that it has so far not been possible to build a window made of a wood-based material that is usually accessible to external weathering. The well-known insufficient dimensional stability of chipboard under the influence of moisture represents an obstacle here.
Der Erfindung liegt die Aufgabe zugrunde, Holzprofilleisten, die für die Erstellung von Rahmen bei der Herstellung von Fenstern, Türen o. dgl. geeignet sind, aufzuzeigen, die einfacher als bisher gefertigt werden können.The invention has for its object to provide wooden profile strips for the creation of frames in the manufacture of Windows, doors or the like are suitable to show that can be manufactured more easily than before.
Erfindungsgemäß wird dies bei einer lamellierten Holzprofilleiste der eingangs beschriebenen Art dadurch erreicht, daß die Lamellen aus Streifen aus isocyanatverleimten, mitteldichten Faserplatten (MDF-Platten) bestehen. Die Lamellen bestehen also nicht mehr aus Vollholz, sondern dem angegebenen Holzwerkstoff.According to the invention, this is achieved in a laminated wood profile strip of the type described in the introduction in that the slats consist of strips of isocyanate-glued, medium-density fiberboard (MDF). The slats are no longer made of solid wood, but the specified wood material.
Damit werden erhebliche Vorteile erreicht. Es entfällt die gesamte Sortierarbeit, die beim Stand der Technik einen erheblichen Anteil an den Gesamtfertigungskosten ausmacht. Da mitteldichte Faserplatten in ihrer Dicke maßgenau durch Schleifen hergestellt werden, entfällt die Fräsbearbeitung an den beiden Oberflächen, die parallel zu den Leimfugen liegen. Die Nacharbeit durch Fräsen beschränkt sich damit auf nur zwei Seiten, wodurch sich auch die beim Fräsen eingesetzten Werkzeuge vereinfachen. Der beim Fräsen anfallende Abfall ist sehr viel geringer als im Stand der Technik, da die Lamellen in der Dicke ohne Weiteres maßgenau eingesetzt werden können. Die erstellten Holzprofilleisten weisen eine dichtere Oberfläche als bei Vollholz auf, wodurch sich ein verminderter Beschichtungsaufwand bei der Oberflächenveredlung ergibt. Diese Oberflächenveredlung kann weiterhin vorteilhaft und auch zweckmäßig bereits beim Hersteller der Holzprofilleisten erbracht werden. Auch kann in einfacher Weise ein Holzschutzmittel bei der Herstellung der MDF-Platten homogen eingearbeitet werden. Die aus solchen Holzprofilleisten erstellten Rahmen an Fenstern, Türen o. dgl. sind in überraschender Weise wetterbeständig. Während Holzwerkstoffe seit Jahrzehnten bekannt sind, sind bisher keine Fenster daraus erstellt worden. Diese technische Fehlvorstellung kann mit isocyanatverleimten MDF-Platten beseitigt werden.This achieves significant advantages. The entire sorting work is eliminated, which accounts for a significant proportion of the total production costs in the state of the art. Since medium-density fiberboard is made to size by grinding, there is no need for milling on the two surfaces that lie parallel to the glue joints. Reworking by milling is therefore limited to only two sides, which also simplifies the tools used in milling. The waste generated during milling is much less than in the prior art, since the thickness of the lamellae can easily be used with dimensional accuracy. The wooden profile strips created have a denser surface than solid wood, which results in a reduced coating effort for surface finishing. This surface refinement can also advantageously and expediently already be provided by the manufacturer of the wooden profile strips. A wood preservative can also be incorporated homogeneously in the manufacture of the MDF boards in a simple manner. The frames on windows, doors or the like created from such wooden profile strips are surprisingly weatherproof. While wood-based materials have been known for decades, no windows have yet been created from them. This technical misconception can be remedied with isocyanate-glued MDF boards.
Weiterhin ist vorteilhaft, daß zur Erstellung der Lamellen aus den mitteldichten Faserplatten auch Abfallholz, insbesondere Industrierestholz, eingesetzt werden kann, aus dem ohne Weiteres ein hochwertiges Produkt entsteht. Die gesamten Probleme der Astfreiheit, Fehlerfreiheit, Holzstruktur usw., wie sie bei Holzprofilleisten aus Lamellen aus Vollholz auftreten, entfallen. Lamellen aus Streifen aus isocyanatverleimten MDF-Platten und die daraus erstellten Holzprofilleisten weisen eine Maßstabilität über Langzeit auf. Die Holzprofilleisten sind auch ohne Weiteres in großen Längen herstellbar, beispielsweise als Profilleisten in Längen von 5 oder auch 6 m. Die Anordnung von Längsstößen entfällt. Die neue Holzprofilleiste eignet sich nicht nur zur Erstellung von Holzfenstern, sondern auch für die Erstellung von Holz/Aluminium-Konstruktions-Elementen.It is also advantageous that waste wood, in particular industrial waste wood, can also be used to produce the lamellae from the medium-density fiberboard, from which a high-quality product is readily produced. The entire problems of freedom from knots, freedom from defects, wood structure, etc., as they occur with wooden profile strips made of solid wood lamellas, are eliminated. Slats made from strips of isocyanate-glued MDF boards and the wooden profile strips created from them have long-term dimensional stability. The wooden profile strips can also be easily produced in large lengths, for example as profile strips in lengths of 5 or 6 m. The arrangement of longitudinal joints is eliminated. The new wooden profile strip is not only suitable for the creation of wooden windows, but also for the creation of wood / aluminum construction elements.
Die Holzprofilleiste kann zumindest auf ihrer wesentlichen Oberfläche mit einer Beschichtung, Beplankung o. dgl., z. B. aus einer Kunststoffolie, umgeben sein. Dieser Oberflächenschutz wird vorteilhaft werksseitig nach dem Verleimen der Lamellen aufgebracht und damit vor dem Schneiden der Holzprofilleiste auf Gehrung. Damit entfällt eine Oberflächenbearbeitung bei den mit der Erstellung von Fenstern, Türen o. dgl. befaßten Betrieben.The wooden profile strip can at least on its essential surface with a coating, planking o. B. be surrounded by a plastic film. This surface protection is advantageously applied at the factory after the lamellae have been glued and thus mitred before the wooden profile strip is cut. This eliminates the need for surface processing in the companies involved in the production of windows, doors or the like.
Das Verfahren zur Herstellung einer lamellierten Holzprofilleiste kennzeichnet sich erfindungsgemäß dadurch, daß die Lamellen aus Streifen aus isocyanatverleimten, geschliffenen, mitteldichten Faserplatten (MDF-Platten) geschnitten werden, und daß das Fräsen lediglich auf den einander gegenüberliegenden, sich senkrecht zu den geschliffenen Oberflächen erstreckenden Oberflächen erfolgt. Es gelten hier die gleichen Vorteile, wie sie oben bereits angeführt wurden.The process for producing a laminated wooden profile strip is characterized according to the invention in that the lamellae are cut from strips of isocyanate-glued, sanded, medium-density fiberboard (MDF), and in that the milling is carried out only on the mutually opposite surfaces which extend perpendicular to the sanded surfaces he follows. The same advantages apply here as have already been mentioned above.
Vorteilhaft können die Lamellen mit einer gegenüber Vollholz geringeren Toleranz geschnitten werden, wodurch sich der Abfall nochmals reduziert.The slats can advantageously be cut with a lower tolerance than solid wood, which further reduces waste.
Die Holzprofilleiste kann mit einer Beschichtung, Beplankung o. dgl. versehen werden, bevor das Zuschneiden zu Rahmenprofilabschnitten erfolgt. Auch dies vereinfacht die Herstellung der Fenster insgesamt.The wooden profile strip can be provided with a coating, planking or the like before it is cut to frame profile sections. This also simplifies the manufacture of the windows as a whole.
Kernpunkt der Erfindung ist die Verwendung von isocyanatverleimten mitteldichten Faserplatten (MDF-Platten) als Lamellen für Holzprofilleisten für die Herstellung von Fenstern, Türen o. dgl.The key point of the invention is the use of isocyanate-glued medium-density fiberboard (MDF) as slats for wooden profile strips for the production of windows, doors or the like.
Die Herstellung einer Holzprofilleiste und ihre Weiterverarbeitung wird anhand der beigefügten Zeichnung nochmals schematisch verdeutlicht. Mitteldichte Faserplatten 1, beispielsweise in den Abmessungen 5 m x 2,5 m, deren beide in den Haupterstreckungsebenen liegende Oberflächen maßhaltig geschliffen sind, werden in Streifen geschnitten, so daß hieraus Lamellen 2 entstehen. Die Breite der Lamellen 2 kann je nach Erfordernis und Querschnittsaufbau der Holzprofilleiste unterschiedlich sein. Mehrere solcher Lamellen 2 werden zu einer Rohkantel 3 zusammengefügt, wobei eine Verklebung an Leimfugen 4 erfolgt. Die Rohkantel 3 ist bereits im Bereich ihrer beiden Oberflächen, die parallel zu den Leimfugen 4 liegen, maßgenau. Die Rohkantel 3 weist hier Z-förmigen Querschnitt auf.The manufacture of a wooden profile strip and its further processing is again illustrated schematically using the attached drawing. Medium-
Es schließt sich ein Fräsvorgang an den beiden Seiten der Rohkantel 3 an, deren Oberflächen senkrecht zu den Leimfugen 4 liegen. Nach dem Fräsen entsteht die Holzprofilleisten 5, wobei die Ecken entsprechend abgerundet werden und Nuten 6 und vertiefte Rillen 7, beispielsweise für den Einsatz eines Dichtungsprofils o. dgl., eingefräst werden. Die Holzprofilleiste 5 kann auf ihrer gesamten Oberfläche mit einer Lackierung oder einer anderen Oberflächenbehandlung veredelt werden. Auch ist es möglich, eine Beplankung, Beschichtung o. dgl. 8 aufzubringen, die sich über die wesentliche Oberfläche der Holzprofilleiste 5 hinweg erstreckt. Damit wird eine optisch einwandfreie Oberfläche geschaffen, die zudem beim Hersteller der Holzprofilleisten 5 aufgebracht wird.This is followed by a milling process on the two sides of the
In den weiterverarbeitenden Betrieben erfolgt das Schneiden der Holzprofilleisten 5 in entsprechend lange Abschnitte 9, wobei die Verbindung im Bereich der Gehrungen 10 zueinander in bekannter Weise erfolgt, so daß damit aus der Holzprofilleiste 5 ein Blend- oder Flügelrahmen 11 entsteht, wie er für Fenster, Türen o. dgl. benötigt wird.In the processing plants, the wooden profile strips 5 are cut into correspondingly
- 11
- = mitteldichte Faserplatte= medium density fibreboard
- 22nd
- = Lamelle= Slat
- 33rd
- = Rohkantel= Raw kantel
- 44th
- = Leimfuge= Glue joint
- 55
- = Holzprofilleiste= Wooden profile strip
- 66
- = Nut= Groove
- 77
- = Rille= Groove
- 88th
- = Beschichtung= Coating
- 99
- = Abschnitt= Section
- 1010th
- = Gehrung= Miter
- 1111
- = Blend- oder Flügelrahmen= Frame or casement
Claims (6)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4117403 | 1991-05-28 | ||
| DE4117403A DE4117403A1 (en) | 1991-05-28 | 1991-05-28 | LAMINATED WOOD PROFILE STRIP FOR THE PRODUCTION OF FRAME AND / OR Sash FRAME IN THE PRODUCTION OF WINDOWS, DOORS OR THE LIKE. AND METHOD FOR THEIR PRODUCTION |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0515875A1 true EP0515875A1 (en) | 1992-12-02 |
| EP0515875B1 EP0515875B1 (en) | 1994-06-15 |
Family
ID=6432606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92107607A Expired - Lifetime EP0515875B1 (en) | 1991-05-28 | 1992-05-06 | Laminated wooden section member for making frames, especially for doors or windows and their manufacturing method |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0515875B1 (en) |
| AT (1) | ATE107390T1 (en) |
| DE (2) | DE4117403A1 (en) |
| DK (1) | DK0515875T3 (en) |
| ES (1) | ES2056678T3 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995005519A1 (en) * | 1993-08-17 | 1995-02-23 | Deko Loft + Vaeg A/S | Door frame or preform for same, especially for use with light walls |
| EP1060852A1 (en) * | 1999-06-14 | 2000-12-20 | SHINSEIKAN Co., Ltd. | Method for laminating woody fiberboard |
| WO2001053643A1 (en) * | 2000-01-18 | 2001-07-26 | Stumpf Klaus Edgar | Profile for producing a frame |
| WO2003042481A1 (en) * | 2001-11-12 | 2003-05-22 | Vkr Holding A/S | Combination for a window and method for making such a combination |
| WO2004063515A1 (en) * | 2003-01-14 | 2004-07-29 | Vkr Holding A/S | A wooden construction element and a process for the manufacture thereof |
| FR2892145A1 (en) * | 2005-10-19 | 2007-04-20 | Righini Ind Sa | Door or window surrounding frame is made from lengths of compressed timber particle boards with reinforced edges, assembled at right angles |
| GR20080100077A (en) * | 2008-02-06 | 2009-09-25 | Χρηστος Πανοηλιας | Use of composite glued wood coated with veneer or other coating means for the production of frames. |
| CN103397832A (en) * | 2013-07-23 | 2013-11-20 | 索菲亚家居股份有限公司 | Production method of multi-frame door |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4405732A1 (en) * | 1994-02-23 | 1995-08-24 | Hugo Selnar | Window profile |
| DE4405731A1 (en) * | 1994-02-23 | 1995-08-24 | Hugo Selnar | Leaf and/or fixed frame contg. window profile |
| DE19546678C2 (en) * | 1995-12-15 | 2003-06-05 | Eurotec Gmbh | Profiled window or door |
| DE29909124U1 (en) * | 1999-05-26 | 2000-06-29 | Schiller Heinrich | Glued wood from two different types of wood, for use in wood-glass facades and conservatories |
| FR2795481B1 (en) * | 1999-06-22 | 2001-08-10 | Imp Ation Et De Negoce Des Boi | PROFILE SUITABLE FOR CUTTING AND ASSEMBLY FOR THE PRODUCTION OF EXTERNAL JOINERY |
| SI1500769T1 (en) | 2003-07-22 | 2009-08-31 | Holz Schiller S R O | Wooden window system |
| ES2329208B1 (en) * | 2007-04-11 | 2010-09-22 | Maria Elena Torondell Garcia | RECHAPABLE DRUM WITH MDF MESH. |
| SE533186C2 (en) * | 2009-08-17 | 2010-07-13 | Apparatus and method for providing a joint-free frame or arch |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0092699A2 (en) * | 1982-04-26 | 1983-11-02 | The Celotex Corporation | Blow line addition of isocyanate binder in fiberboard manufacture |
| DE3417412A1 (en) * | 1984-05-11 | 1985-11-14 | Ernst Josef 5562 Wallscheid Meeth | Method of producing a wooden main frame with encircling glass- retaining strip, in particular a window casement frame |
| EP0320803A2 (en) * | 1987-12-17 | 1989-06-21 | Pavatex Ag | Three-dimensional wooden work piece for use as a structural component |
| DE3815846A1 (en) * | 1988-05-09 | 1989-11-23 | Bayerwald Fensterfabrik Altenb | Door having a peripheral, load-bearing wooden frame |
-
1991
- 1991-05-28 DE DE4117403A patent/DE4117403A1/en active Granted
-
1992
- 1992-05-06 DK DK92107607.1T patent/DK0515875T3/en active
- 1992-05-06 EP EP92107607A patent/EP0515875B1/en not_active Expired - Lifetime
- 1992-05-06 AT AT92107607T patent/ATE107390T1/en not_active IP Right Cessation
- 1992-05-06 ES ES92107607T patent/ES2056678T3/en not_active Expired - Lifetime
- 1992-05-06 DE DE59200237T patent/DE59200237D1/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0092699A2 (en) * | 1982-04-26 | 1983-11-02 | The Celotex Corporation | Blow line addition of isocyanate binder in fiberboard manufacture |
| DE3417412A1 (en) * | 1984-05-11 | 1985-11-14 | Ernst Josef 5562 Wallscheid Meeth | Method of producing a wooden main frame with encircling glass- retaining strip, in particular a window casement frame |
| EP0320803A2 (en) * | 1987-12-17 | 1989-06-21 | Pavatex Ag | Three-dimensional wooden work piece for use as a structural component |
| DE3815846A1 (en) * | 1988-05-09 | 1989-11-23 | Bayerwald Fensterfabrik Altenb | Door having a peripheral, load-bearing wooden frame |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995005519A1 (en) * | 1993-08-17 | 1995-02-23 | Deko Loft + Vaeg A/S | Door frame or preform for same, especially for use with light walls |
| EP1060852A1 (en) * | 1999-06-14 | 2000-12-20 | SHINSEIKAN Co., Ltd. | Method for laminating woody fiberboard |
| WO2001053643A1 (en) * | 2000-01-18 | 2001-07-26 | Stumpf Klaus Edgar | Profile for producing a frame |
| WO2003042481A1 (en) * | 2001-11-12 | 2003-05-22 | Vkr Holding A/S | Combination for a window and method for making such a combination |
| WO2004063515A1 (en) * | 2003-01-14 | 2004-07-29 | Vkr Holding A/S | A wooden construction element and a process for the manufacture thereof |
| FR2892145A1 (en) * | 2005-10-19 | 2007-04-20 | Righini Ind Sa | Door or window surrounding frame is made from lengths of compressed timber particle boards with reinforced edges, assembled at right angles |
| GR20080100077A (en) * | 2008-02-06 | 2009-09-25 | Χρηστος Πανοηλιας | Use of composite glued wood coated with veneer or other coating means for the production of frames. |
| CN103397832A (en) * | 2013-07-23 | 2013-11-20 | 索菲亚家居股份有限公司 | Production method of multi-frame door |
| CN103397832B (en) * | 2013-07-23 | 2016-07-13 | 索菲亚家居股份有限公司 | A kind of manufacture method of multi-frame door |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0515875B1 (en) | 1994-06-15 |
| DE59200237D1 (en) | 1994-07-21 |
| DE4117403A1 (en) | 1992-12-03 |
| ES2056678T3 (en) | 1994-10-01 |
| DK0515875T3 (en) | 1995-03-27 |
| ATE107390T1 (en) | 1994-07-15 |
| DE4117403C2 (en) | 1993-09-02 |
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