EP0519153A1 - Laminated wood panel - Google Patents

Laminated wood panel Download PDF

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Publication number
EP0519153A1
EP0519153A1 EP92100351A EP92100351A EP0519153A1 EP 0519153 A1 EP0519153 A1 EP 0519153A1 EP 92100351 A EP92100351 A EP 92100351A EP 92100351 A EP92100351 A EP 92100351A EP 0519153 A1 EP0519153 A1 EP 0519153A1
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EP
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Prior art keywords
veneer
laminated
wood panel
laminated wood
panel
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EP92100351A
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German (de)
French (fr)
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EP0519153B1 (en
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Karl Moser
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27DWORKING VENEER OR PLYWOOD
    • B27D1/00Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C5/00Pavings made of prefabricated single units
    • E01C5/14Pavings made of prefabricated single units made of wooden units
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/12Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
    • E01D19/125Grating or flooring for bridges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00Material constitution of bridges
    • E01D2101/10Wood

Definitions

  • the invention relates to a weatherproof plywood panel and in particular to a track or road surface slab, in the form of a plywood panel especially for a bridge.
  • Laminated wood panels are often used outdoors, for example as pavements or road surfaces, and must therefore be very weather-resistant, especially if they form load-bearing parts of a bridge construction. So far, only high-quality, inherently weather-resistant woods have been considered as material for plywood panels that can be used outdoors, which are usually tropical precious woods. The use of cheaper, in particular domestic, timbers stood in the way of their poor weather resistance. Impregnation of these plywood panels with wood preservatives did not give satisfactory results because the wood preservative could not penetrate deep enough into the panel and the interior of these panels remained unprotected.
  • the object of the invention is therefore a plywood panel, in particular a covering panel in the form of a plywood panel of the type mentioned above, which has a long service life even when using less weather-resistant wood.
  • the plywood panel is designed according to the invention as a veneer plywood panel that has been pressure-impregnated with a wood preservative as a panel, the round-peeled veneer layers of which have a thickness leading to longitudinal cracks.
  • the round-peeled veneer is laid flat, from a certain veneer thickness - depending on the type of wood, among other things - cracks form along the grain, which are still open even after the board has been formed.
  • the wood preservative penetrates through the cracks in each of its veneer layers, so that not only the cover layers but all veneer layers of the plate are penetrated by wood preservatives. Because the inner layers of the plate are also protected, their lifespan is increased considerably even when they are used outdoors.
  • the cracks form when peeling round from 2 to 5 mm, preferably about 3 mm thick veneer layers, in particular from European spruce or pine wood.
  • the laminated wood panel according to the invention can be used as a construction element, in particular in bridge or building construction.
  • the cracks also have the effect that when the laminated wood panel is used as the running or road surface, the covering veneer layer, which forms the road or running track, breaks open over time due to weather influences and results in a relatively non-slip and non-slip surface. If the top veneer layer is worn, the next layer of veneer is exposed, which also breaks open due to the weather.
  • the surface of the plywood panel remains unattended even after prolonged use non-slip.
  • at least one veneer layer lying directly under the cover veneer layer has a fiber course which is the same as that of the cover veneer layer, in order to provide unchanged slip resistance even after the original cover veneer layer has worn out.
  • the plate according to the invention is expediently provided on at least one side with an embossed profile, preferably of a shallow depth, for example of 1 to 2 mm. Since the profiling is embossed and not machined, the top veneer layer is not damaged, which increases its service life.
  • the embossing can be in the form of grooves which run transversely to the longitudinal direction of the fiber of the cover veneer layer or which run as a cross pattern.
  • the cross grid can be aligned parallel to one groove direction or obliquely to the longitudinal direction of the fiber of the cover veneer layer with both groove directions.
  • the veneer layer boards can be rectangular, in particular strip-shaped, the longitudinal direction of the majority of the veneer layers running in the longitudinal direction of the rectangle. A greater load-bearing capacity is obtained in the longitudinal direction of the slab than in the transverse direction, which is why they can be used as cantilevered covering slabs like conventional solid wood boards or planks.
  • Such plywood panels are also with heavy vehicles with larger dimensions and appropriate substructure passable.
  • the slabs can also be laid flat, for example as garden path slabs, directly on a graveled bed, for example. This also allows very large format plates. If the loads to be expected are lower, it may be sufficient to place the panels on the surface without further anchoring.
  • a cover veneer layer 7 of the board 3 that can be walked on or driven over has a fiber course that is oriented in the longitudinal direction of the board 3, as well as a second veneer layer 9 lying directly below it (FIG. 2).
  • the total number of veneer layers can be different, the number of veneer layers with fibers running lengthwise to the plate 3 being greater than the number of veneer layers with fibers running transversely to the plate, whereby the breaking strength in the longitudinal direction of the plate is greater than in the transverse direction.
  • the individual veneer layers are bonded together using phenolic resin. At least the four top rectangular edges of the plate 3 are rounded.
  • the veneer layers with a thickness of 2 to 5 mm, preferably about 3 mm, are made of spruce or pine wood by peeling the logs.
  • a large number of longitudinal cracks form in the veneer, which also remain continuous after the veneers have been connected to the laminated veneer wood panel 3.
  • the plate 3 After the plate 3 has been formed, it is impregnated with wood preservative in the boiler pressure process.
  • the wood preservative enters the longitudinal cracks on the end faces of the individual veneer layers and migrates into the interior of the veneer plywood panel 3. In this way, all veneer layers are impregnated over their entire length, so that a completely impregnated veneer plywood panel 3 with high weather resistance and durability is obtained.
  • Impregnation depths along the cracks of several meters are easily accessible. Even very thick plywood panels can be completely impregnated in this way. Plate formats up to 25 m long, up to approx. 2 m wide and up to approx. 25 cm thick are intended.
  • the covering veneer layer 7 breaks open due to the weather and forms a rough and non-slip pavement surface 17. If the covering veneer layer 7 has worn out over time, the second veneer layer 9 is exposed, which in turn breaks open due to the weather. Because of the rectified fiber courses of the top veneer layer 7 and the second veneer layer 9, the main anti-slip direction remains unchanged. If the expected wear is very high, it is of course also possible to arrange the top three or more veneer layers with the fibers running in the same direction.
  • the surface 17 is provided with grooves 19 stamped in the cross pattern.
  • the cross grid can be aligned obliquely with a groove direction parallel to the rectangular edges of the plate 3 or with both groove directions.
  • An embossing depth of 1 to 2 mm is sufficient for the initial anti-slip protection, so that the breaking strength of the plate 3 remains practically unaffected. Since the grooves 19 are embossed, the cover veneer layer 7 is not damaged, which benefits the service life.
  • the individual laminated veneer lumber panels 3 rest with their end sections and with their center on the sub-bases 5 running transversely to the longitudinal direction of the panel, with adjacent panels 3 each being staggered lengthways.
  • the sub-bearings 5 can be part of a bridge construction or in turn rest on the ground.
  • the plates 3 are self-supporting between the sub-bearings 5. With appropriate dimensioning of the panels and the substructure, route 1 can also be driven on by heavy vehicles.
  • the plates 3 are firmly connected to the sub-bearings 5, for example screwed, in a manner not shown.
  • laminated veneer wood panels explained type can also be used for other areas of application, for example also in building construction.
  • load-bearing structural elements for example beams or beams or the like, can also be produced from impregnated laminated veneer lumber.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Panels For Use In Building Construction (AREA)
  • Laminated Bodies (AREA)

Abstract

A veneer laminated wood panel, which is suitable in particular as footpath or roadway covering panel and the rotary-cut veneer layers of which have a thickness leading to longitudinal cracks is proposed. Under pressure impregnation, wood preservative penetrates into the longitudinal cracks in the individual veneer layers so that a thoroughly impregnated veneer laminated panel with high weather resistance is obtained. For the veneer wood, less weather-resistant European woods are sufficient. <IMAGE>

Description

Die Erfindung betrifft eine witterungsgeschützte Schichtholzplatte und insbesondere eine Lauf- bzw. Fahrbahnbelagplatte, in Form einer Schichtholzplatte speziell für eine Brücke.The invention relates to a weatherproof plywood panel and in particular to a track or road surface slab, in the form of a plywood panel especially for a bridge.

Schichtholzplatten werden vielfach im Außenbereich eingesetzt, zum Beispiel als Geh- oder Fahrbahnbeläge und müssen deshalb sehr witterungsbeständig sein, insbesondere dann, wenn sie tragende Teile einer Brückenkonstruktion bilden. Als Material für im Freien verwendbare Schichtholzplatten kamen bisher nur hochwertige, von Haus aus witterungsbeständige Hölzer in Frage, das sind in der Regel tropische Edelhölzer. Der Verwendung billigerer, insbesondere heimischer Hölzer stand deren geringe Witterungsbeständigkeit entgegen. Imprägnierungen dieser Schichtholzplatten mit Holzschutzmitteln brachten keine zufriedenstellende Ergebnisse, weil das Holzschutzmittel nicht tief genug in die Platte eindringen konnte und das Innere dieser Platten ungeschützt blieb.Laminated wood panels are often used outdoors, for example as pavements or road surfaces, and must therefore be very weather-resistant, especially if they form load-bearing parts of a bridge construction. So far, only high-quality, inherently weather-resistant woods have been considered as material for plywood panels that can be used outdoors, which are usually tropical precious woods. The use of cheaper, in particular domestic, timbers stood in the way of their poor weather resistance. Impregnation of these plywood panels with wood preservatives did not give satisfactory results because the wood preservative could not penetrate deep enough into the panel and the interior of these panels remained unprotected.

Aufgabe der Erfindung ist es daher, eine Schichtholzplatte, insbesondere eine Belagplatte in Form einer Schichtholzplatte der vorstehend genannten Art aufzuzeigen, die auch unter Verwendung weniger witterungsbeständiger Hölzer eine hohe Lebensdauer hat.The object of the invention is therefore a plywood panel, in particular a covering panel in the form of a plywood panel of the type mentioned above, which has a long service life even when using less weather-resistant wood.

Zur Lösung der Aufgabe wird die Schichtholzplatte erfindungsgemäß als mit einem Holzschutzmittel als Platte druckimprägnierte Furnierschichtholzplatte ausgebildet, deren rundgeschälte Furnierschichten eine zu Längsrissen führende Dicke haben. Beim Flachlegen des rundgeschälten Furniers bilden sich ab einer bestimmten - unter anderem von der Holzart abhängigen - Furnierdicke längs des Faserverlaufs Risse, welche auch nach Bildung der Platte noch offen sind. Unterwirft man diese Platte einer Druckimprägnierung, so dringt das Holzschutzmittel durch die Risse in jede ihrer Furnierschichten ein, so daß nicht nur die Deckschichten, sondern sämtliche Furnierschichten der Platte von Holzschutzmittel durchsetzt sind. Weil somit auch die Innenschichten der Platte geschützt sind, erhöht sich ihre Lebensdauer auch bei ungeschützter Verwendung im Freien beträchtlich. Die Risse bilden sich beim Rundschälen von 2 bis 5 mm, bevorzugt ca. 3 mm dicken Furnierschichten, insbesondere aus europäischen Fichten oder Kiefernhölzern. Die erfindungsgemäße Schichtholzplatte läßt sich als Konstruktionselement insbesondere im Brücken- oder Gebäudebau einsetzen.To achieve the object, the plywood panel is designed according to the invention as a veneer plywood panel that has been pressure-impregnated with a wood preservative as a panel, the round-peeled veneer layers of which have a thickness leading to longitudinal cracks. When the round-peeled veneer is laid flat, from a certain veneer thickness - depending on the type of wood, among other things - cracks form along the grain, which are still open even after the board has been formed. If this plate is subjected to pressure impregnation, the wood preservative penetrates through the cracks in each of its veneer layers, so that not only the cover layers but all veneer layers of the plate are penetrated by wood preservatives. Because the inner layers of the plate are also protected, their lifespan is increased considerably even when they are used outdoors. The cracks form when peeling round from 2 to 5 mm, preferably about 3 mm thick veneer layers, in particular from European spruce or pine wood. The laminated wood panel according to the invention can be used as a construction element, in particular in bridge or building construction.

Die Risse bewirken weiterhin, daß bei Verwendung der Schichtholzplatte als Lauf- oder Fahrbahnbelag die Deckfurnierschicht, die die Fahr- bzw. Laufbahn bildet, durch Witterungseinflüsse im Laufe der Zeit aufbricht und sich eine relativ griffige und rutschsichere Oberfläche ergibt. Bei abgenutzter Deckfurnierschicht liegt die nächstfolgende Furnierschicht frei, welche witterungsbedingt ebenfalls aufbricht. Die Oberfläche der Schichtholzplatte bleibt auch nach längerer Nutzung ohne weiteres Zutun rutschsicher. Bevorzugt hat wenigstens eine unmittelbar unter der Deckfurnierschicht liegende Furnierschicht einen zur Deckfurnierschicht gleichgerichteten Faserverlauf, um auch nach Abnutzung der ursprünglichen Deckfurnierschicht eine unveränderte Rutschsicherheit zu bieten.The cracks also have the effect that when the laminated wood panel is used as the running or road surface, the covering veneer layer, which forms the road or running track, breaks open over time due to weather influences and results in a relatively non-slip and non-slip surface. If the top veneer layer is worn, the next layer of veneer is exposed, which also breaks open due to the weather. The surface of the plywood panel remains unattended even after prolonged use non-slip. Preferably, at least one veneer layer lying directly under the cover veneer layer has a fiber course which is the same as that of the cover veneer layer, in order to provide unchanged slip resistance even after the original cover veneer layer has worn out.

Um Rutschsicherheit zu erhalten, mußten bisher bei aus Holz bestehenden Lauf- bzw. Fahrbahnplatten Profilierungen spanabhebend in die Platten eingebracht werden, was sich jedoch als nicht dauerhaft erwies. Die witterungsbedingte Aufrauhung erfindungsgemäßer Platten erneuert sich hingegen fortlaufend. Um auch bereits bei neuen, noch nicht durch Verwitterung aufgerauhten Platten eine Anfangsrauhigkeit zu erzielen, wird die erfindungsgemäße Platte zumindest auf einer Seite zweckmäßigerweise mit einer geprägten Profilierung vorzugsweise geringer Tiefe, beispielsweise von 1 bis 2 mm versehen. Da die Profilierung geprägt und nicht spanabhebend gefertigt wird, wird die Deckfurnierschicht nicht verletzt, was deren Lebensdauer erhöht. Die Prägung kann in Form quer zur Faserlängsrichtung der Deckfurnierschicht verlaufender oder als Kreuzraster verlaufender Rillen ausgebildet sein. Das Kreuzraster kann dabei mit einer Rillenrichtung parallel oder mit beiden Rillenrichtungen schräg zur Faserlängsrichtung der Deckfurnierschicht ausgerichtet sein.In order to maintain slip resistance, previously profiles made of wood had to be machined into the plates in the case of track or roadway plates made of wood, but this did not prove to be permanent. The weather-related roughening of plates according to the invention, however, is continuously renewed. In order to achieve an initial roughness even with new plates that have not yet been roughened by weathering, the plate according to the invention is expediently provided on at least one side with an embossed profile, preferably of a shallow depth, for example of 1 to 2 mm. Since the profiling is embossed and not machined, the top veneer layer is not damaged, which increases its service life. The embossing can be in the form of grooves which run transversely to the longitudinal direction of the fiber of the cover veneer layer or which run as a cross pattern. The cross grid can be aligned parallel to one groove direction or obliquely to the longitudinal direction of the fiber of the cover veneer layer with both groove directions.

Die Furnierschichtplatten können rechteckförmig, insbesondere streifenförmig sein, wobei die Faserlängsrichtung der Mehrzahl der Furnierschichten in Rechteck-Längsrichtung verläuft. Man erhält in Längsrichtung der Platte eine größere Tragfähigkeit als in Querrichtung, weswegen sie wie herkömmliche Massivholzbretter oder Bohlen als freitragende Belagplatten verwendbar sind. Solche Schichtholzplatten sind bei stärkerer Dimensionierung und entsprechender Unterkonstruktion auch mit Schwerfahrzeugen befahrbar. Je nach Einsatzzweck können die Platten zum Beispiel als Gartenwegplatten auch flächig direkt auf ein zum Beispiel gekiestes Untergrundbett gelegt werden. Dies erlaubt auch sehr großformatige Platten. Bei geringeren zu erwartenden Belastungen kann es genügen, die Platten ohne weitere Verankerung auf den Untergrund aufzulegen.The veneer layer boards can be rectangular, in particular strip-shaped, the longitudinal direction of the majority of the veneer layers running in the longitudinal direction of the rectangle. A greater load-bearing capacity is obtained in the longitudinal direction of the slab than in the transverse direction, which is why they can be used as cantilevered covering slabs like conventional solid wood boards or planks. Such plywood panels are also with heavy vehicles with larger dimensions and appropriate substructure passable. Depending on the intended use, the slabs can also be laid flat, for example as garden path slabs, directly on a graveled bed, for example. This also allows very large format plates. If the loads to be expected are lower, it may be sufficient to place the panels on the surface without further anchoring.

Ein bevorzugtes Ausführungsbeispiel wird nachfolgend unter Bezug auf die beigefügte Zeichnung beschrieben.

Fig. 1
zeigt einen Geh- oder Fahrweg mit erfindungsgemäßen Furnierschichtholzplatten, und
Fig. 2
zeigt einen vergrößerten Ausschnitt aus Fig. 1.
A preferred embodiment is described below with reference to the accompanying drawings.
Fig. 1
shows a walkway or driveway with laminated veneer wood panels according to the invention, and
Fig. 2
shows an enlarged detail from FIG. 1.

Zur Bildung eines Geh- oder Fahrwegs 1 beispielsweise einer Brücke sind langgestreckt rechteckförmige Furnierschichtholzplatten 3 auf einer Unterkonstruktion 5 befestigt. Eine begeh- bzw. befahrbare Deckfurnierschicht 7 der Platte 3 hat einen in Längsrichtung der Platte 3 ausgerichteten Faserverlauf, ebenso eine direkt darunterliegende, gleichgerichtete zweite Furnierschicht 9 (Fig. 2). Es folgen weitere Furnierschichten, zum Beispiel eine Furnierschicht 11 mit quer zur Platte 3 verlaufenden Fasern, weitere Furnierschichten 13 mit längs der Platte 3 verlaufenden Fasern sowie den Schichtverbund symmetrisch ergänzende Furnierschichten. Die Gesamtzahl der Furnierschichten kann unterschiedlich sein, wobei die Anzahl der Furnierschichten mit längs zur Platte 3 verlaufenden Fasern größer ist als die Anzahl der Furnierschichten mit quer zur Platte verlaufenden Fasern, wodurch die Bruchfestigkeit in Längsrichtung der Platte größer ist als in Querrichtung. Die einzelnen Furnierschichten sind mittels Phenolharz miteinander verbunden. Zumindest die vier oberseitigen Rechteckkanten der Platte 3 sind abgerundet.To form a walkway or driveway 1, for example a bridge, elongated rectangular veneer plywood panels 3 are attached to a substructure 5. A cover veneer layer 7 of the board 3 that can be walked on or driven over has a fiber course that is oriented in the longitudinal direction of the board 3, as well as a second veneer layer 9 lying directly below it (FIG. 2). This is followed by further veneer layers, for example a veneer layer 11 with fibers running transversely to the plate 3, further veneer layers 13 with fibers running along the plate 3 and veneer layers which symmetrically supplement the layer composite. The total number of veneer layers can be different, the number of veneer layers with fibers running lengthwise to the plate 3 being greater than the number of veneer layers with fibers running transversely to the plate, whereby the breaking strength in the longitudinal direction of the plate is greater than in the transverse direction. The individual veneer layers are bonded together using phenolic resin. At least the four top rectangular edges of the plate 3 are rounded.

Die Furnierschichten sind mit einer Dicke von 2 bis 5 mm, bevorzugt ca. 3 mm, aus Fichten- oder Kiefernholz durch Rundschälen der Stämme hergestellt. Beim anschließenden Flachlegen des rundgeschälten Furniers bilden sich in dem Furnier eine Vielzahl von Längsrissen, die auch nach Verbindung der Furniere zur Furnierschichtholzplatte 3 durchgängig bleiben. Nach Bildung der Platte 3 wird diese im Kesseldruckverfahren mit Holzschutzmittel imprägniert. Hierbei tritt das Holzschutzmittel an den Stirnseiten der einzelnen Furnierschichten in die Längsrisse ein und wandert ins Innere der Furnierschichtholzplatte 3. Auf diese Weise werden sämtliche Furnierschichten über ihre jeweils gesamte Länge imprägniert, so daß man eine vollständig durchimprägnierte Furnierschichtholzplatte 3 hoher Witterungsbeständigkeit und Lebensdauer erhält. Imprägniertiefen längs der Risse von mehreren Metern sind ohne weiteres erreichbar. Auch sehr dicke Furnierschichtholzplatten lassen sich auf diese Weise vollständig durchimprägnieren. Gedacht ist an Plattenformate bis zu 25 m Länge, bis ca. 2 m Breite und bis ca. 25 cm Dicke.The veneer layers with a thickness of 2 to 5 mm, preferably about 3 mm, are made of spruce or pine wood by peeling the logs. When the round-peeled veneer is then laid flat, a large number of longitudinal cracks form in the veneer, which also remain continuous after the veneers have been connected to the laminated veneer wood panel 3. After the plate 3 has been formed, it is impregnated with wood preservative in the boiler pressure process. Here, the wood preservative enters the longitudinal cracks on the end faces of the individual veneer layers and migrates into the interior of the veneer plywood panel 3. In this way, all veneer layers are impregnated over their entire length, so that a completely impregnated veneer plywood panel 3 with high weather resistance and durability is obtained. Impregnation depths along the cracks of several meters are easily accessible. Even very thick plywood panels can be completely impregnated in this way. Plate formats up to 25 m long, up to approx. 2 m wide and up to approx. 25 cm thick are intended.

Wegen der Risse bricht die Deckfurnierschicht 7 witterungsbedingt auf und bildet eine rauhe und rutschfeste Gehbahnoberfläche 17. Hat sich die Deckfurnierschicht 7 im Laufe der Zeit abgenutzt, liegt die zweite Furnierschicht 9 frei, welche nun ihrerseits witterungsbedingt aufbricht. Wegen der gleichgerichteten Faserverläufe der Deckfurnierschicht 7 und der zweiten Furnierschicht 9, bleibt die Rutschsicherungshauptrichtung unverändert. Bei sehr hoher zu erwartender Abnutzung ist es natürlich auch möglich, die obersten drei oder mehr Furnierschichten mit gleichgerichtetem Faserverlauf anzuordnen.Because of the cracks, the covering veneer layer 7 breaks open due to the weather and forms a rough and non-slip pavement surface 17. If the covering veneer layer 7 has worn out over time, the second veneer layer 9 is exposed, which in turn breaks open due to the weather. Because of the rectified fiber courses of the top veneer layer 7 and the second veneer layer 9, the main anti-slip direction remains unchanged. If the expected wear is very high, it is of course also possible to arrange the top three or more veneer layers with the fibers running in the same direction.

Um schon vor Entstehung der witterungsbedingten Oberflächenrauhigkeit einen vorläufigen Gleitschutz zu bieten, ist die Oberfläche 17 mit im Kreuzraster eingeprägten Rillen 19 versehen. Das Kreuzraster kann, wie in den Figuren dargestellt, mit einer Rillenrichtung parallel zu den Rechteckkanten der Platte 3 oder auch mit beiden Rillenrichtungen schräg dazu ausgerichtet sein. Für den anfänglichen Gleitschutz genügt eine Prägetiefe von 1 bis 2 mm, so daß die Bruchfestigkeit der Platte 3 praktisch unbeeinträchtigt bleibt. Da die Rillen 19 geprägt sind, wird die Deckfurnierschicht 7 nicht verletzt, was der Lebensdauer zugute kommt.In order to offer a provisional anti-slip protection before the weather-related surface roughness arises, the surface 17 is provided with grooves 19 stamped in the cross pattern. As shown in the figures, the cross grid can be aligned obliquely with a groove direction parallel to the rectangular edges of the plate 3 or with both groove directions. An embossing depth of 1 to 2 mm is sufficient for the initial anti-slip protection, so that the breaking strength of the plate 3 remains practically unaffected. Since the grooves 19 are embossed, the cover veneer layer 7 is not damaged, which benefits the service life.

Die einzelnen Furnierschichtholzplatten 3 liegen mit ihren Endabschnitten und mit ihrer Mitte auf den quer zur Plattenlängsrichtung verlaufenden Unterlagern 5 auf, wobei nebeneinanderliegende Platten 3 jeweils längsversetzt sind. Die Unterlager 5 können Teil einer Brückenkonstruktion sein oder ihrerseits auf dem Untergrund aufliegen. Zwischen den Unterlagern 5 sind die Platten 3 freitragend. Bei entsprechender Dimensionierung der Platten und der Unterkonstruktion ist der Fahrweg 1 auch mit Schwerfahrzeugen befahrbar. Die Platten 3 sind in nicht dargestellter Weise fest mit den Unterlagern 5 verbunden, beispielsweise verschraubt. Es kann aber auch ausreichen, die Platten ohne weitere Verankerung auf die Unterlager 5 aufzulegen, weil sie aufgrund der symmetrisch angeordneten querverlaufenden Furnierschichten 11 und 15 auch bei extrem unterschiedlicher Belastung kaum zum verwerfen neigen. Bei geringer zu erwartender Belastung können sehr großformatige Platten direkt flächig auf den Untergrund aufgelegt werden. Gedacht ist weiter an die Verwendung der Platten im Bereich von Gartenanlagen und Hofbefestigungen, wobei kleinere Plattenteile als Pflaster verlegt werden können.The individual laminated veneer lumber panels 3 rest with their end sections and with their center on the sub-bases 5 running transversely to the longitudinal direction of the panel, with adjacent panels 3 each being staggered lengthways. The sub-bearings 5 can be part of a bridge construction or in turn rest on the ground. The plates 3 are self-supporting between the sub-bearings 5. With appropriate dimensioning of the panels and the substructure, route 1 can also be driven on by heavy vehicles. The plates 3 are firmly connected to the sub-bearings 5, for example screwed, in a manner not shown. However, it may also be sufficient to place the panels on the sub-supports 5 without further anchoring because, owing to the symmetrically arranged transverse veneer layers 11 and 15, they hardly tend to reject even under extremely different loads. If the expected load is low, very large-format panels can be placed directly on the surface. Another thought is the use of the slabs in the area of gardens and courtyard fortifications, whereby smaller slab parts can be laid as plaster.

Es versteht sich, daß Furnierschichtholzplatten der erläuterten Art auch für andere Anwendungsgebiete eingesetzt werden können, beispielsweise auch im Gebäudebau. Bei geeigneter Dimensionierung lassen sich auch tragende Konstruktionselemente, zum Beispiel Träger oder Balken oder dergleichen, aus imprägniertem Furnierschichtholz herstellen.It is understood that the laminated veneer wood panels explained type can also be used for other areas of application, for example also in building construction. With suitable dimensions, load-bearing structural elements, for example beams or beams or the like, can also be produced from impregnated laminated veneer lumber.

Claims (8)

Schichtholzplatte, insbesondere Lauf- bzw. Fahrbahnplatte, dadurch gekennzeichnet, daß die Schichtholzplatte als mit einem Holzschutzmittel als Platte druckimprägnierte Furnierschichtholzplatte (3) ausgebildet ist, deren rundgeschälte Furnierschichten (7, 9, 11, 13, 15) eine zu Längsrissen führende Dicke haben.Laminated wood panel, in particular running track or carriageway panel, characterized in that the laminated wood panel is designed as a laminated veneer laminated wood panel (3) which is impregnated with a wood preservative as a panel, the round-peeled veneer panels (7, 9, 11, 13, 15) of which have a thickness leading to longitudinal cracks. Schichtholzplatte nach Anspruch 1, dadurch gekennzeichnet, daß die Furnierschichtholzplatte (3) auf zumindest einer Seite (17) eine mit einer geprägten Profilierung (19) versehene Deckfurnierschicht (7) hat.Laminated wood panel according to claim 1, characterized in that the laminated veneer wood panel (3) has a top veneer layer (7) provided with an embossed profile (19) on at least one side (17). Schichtholzplatte nach Anspruch 2, dadurch gekennzeichnet, daß die Profilierung quer zur Faserlängsrichtung der Deckfurnierschicht (7) verlaufende Rillen (19) hat.Laminated wood panel according to claim 2, characterized in that the profiling has grooves (19) running transversely to the longitudinal direction of the fiber of the covering veneer layer (7). Schichtholzplatte nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die Profilierung in einem Kreuzraster verlaufende Rillen (19) hat.Laminated wood panel according to claim 2 or 3, characterized in that the profiling has grooves (19) running in a cross pattern. Schichtholzplatte nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß unmittelbar unter den Deckfurnierschichten (7) jeweils wenigstens eine weitere in gleicher Faserrichtung verlaufende Furnierschicht (9) angeordnet ist.Laminated wood panel according to one of claims 1 to 4, characterized in that at least one further veneer layer (9) running in the same fiber direction is arranged directly under the top veneer layers (7). Schichtholzplatte nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Dicke der Furnierschichten (7, 9, 11, 13, 15) zwischen 2 und 5 mm, vorzugsweise etwa 3 mm beträgt.Laminated wood panel according to one of claims 1 to 5, characterized in that the thickness of the veneer layers (7, 9, 11, 13, 15) is between 2 and 5 mm, preferably about 3 mm. Schichtholzplatte nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Furnierschichtholzplatten (3) Rechteckform, insbesondere Streifenform, haben und die Faserrichtung der Mehrzahl der Furnierschichten (7, 9, 13) in Rechtecklängsrichtung verläuft.Laminated wood panel according to one of claims 1 to 6, characterized in that the laminated veneer wood panels (3) have a rectangular shape, in particular a strip shape, and the fiber direction of the majority of the veneer layers (7, 9, 13) runs in the longitudinal direction of the rectangle. Schichtholzplatte nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Furnierschichtholzplatte (3) die Lauf- oder Fahrbahnplatte oder ein tragendes Bauelement einer Brücke ist.Laminated wood panel according to one of claims 1 to 7, characterized in that the laminated veneer wood panel (3) is the running or roadway panel or a load-bearing component of a bridge.
EP92100351A 1991-06-21 1992-01-10 Laminated wood panel Expired - Lifetime EP0519153B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9107671U 1991-06-21
DE9107671U DE9107671U1 (en) 1991-06-21 1991-06-21 Road surface slab

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EP0519153A1 true EP0519153A1 (en) 1992-12-23
EP0519153B1 EP0519153B1 (en) 1997-07-16

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DE20118269U1 (en) * 2001-11-09 2003-03-20 Ostermann & Scheiwe GmbH & Co. KG, 48155 Münster Construction system for suspended floor decking have preformed panels mounted on pedestal feet

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GB156006A (en) * 1920-01-16 1921-01-06 Harry Grant Jennison Wood block pavements
GB473075A (en) * 1936-04-09 1937-10-06 Edwin Josiah Messent Improvements in or relating to paving blocks for roads
GB545489A (en) * 1940-10-22 1942-05-28 Arthur Cyril Merron Compound sheet materials and objects produced therefrom
GB569115A (en) * 1943-06-25 1945-05-04 John Coleman Nicholson Improvements in and relating to the manufacture of composite or multiply web or sheet material or articles
DE1070368B (en) * 1959-12-03 Lindau Dr. Adolf Sandner (Bodensee) Method and device for the production of laminated wood from perforated and then impregnated with synthetic resin veneers, preferably for use as a floor covering
DE2615661A1 (en) * 1976-04-09 1977-10-20 Heidapal Spanplattenwerk Gmbh Double faced chipboard panel - has embossed decorative pattern formed in outer layers under heat and pressure in press
US4131705A (en) * 1977-09-06 1978-12-26 International Telephone And Telegraph Corporation Structural laminate
FR2585285A1 (en) * 1985-07-26 1987-01-30 Gazeau Bernard Method for obtaining wooden external covering panels, plates, slabs or tiles, and products resulting therefrom

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DE930283C (en) * 1951-06-30 1955-07-14 C A Traxel K G Blocking plate made from pieces of veneer
DE1972527U (en) * 1967-09-01 1967-11-16 Ernst Schmelzle WOODEN PAVING BOARD.
DE2251762A1 (en) * 1972-10-21 1974-05-02 Geb Walter Gisela Weber FLOORING
DE8012629U1 (en) * 1980-05-09 1980-09-04 Oldenburger Parkettwerk H. Eiting & H. Schwarz, 2901 Gristede WOOD PAVING BLOCK FOR THE PRODUCTION OF WOOD PAVING
DE3102013A1 (en) * 1981-01-22 1982-12-16 Jakob Niedergünzl Parkettfabrik u. Hobelwerk, 8229 Fridolfing Wood-paving element

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1070368B (en) * 1959-12-03 Lindau Dr. Adolf Sandner (Bodensee) Method and device for the production of laminated wood from perforated and then impregnated with synthetic resin veneers, preferably for use as a floor covering
GB156006A (en) * 1920-01-16 1921-01-06 Harry Grant Jennison Wood block pavements
GB473075A (en) * 1936-04-09 1937-10-06 Edwin Josiah Messent Improvements in or relating to paving blocks for roads
GB545489A (en) * 1940-10-22 1942-05-28 Arthur Cyril Merron Compound sheet materials and objects produced therefrom
GB569115A (en) * 1943-06-25 1945-05-04 John Coleman Nicholson Improvements in and relating to the manufacture of composite or multiply web or sheet material or articles
DE2615661A1 (en) * 1976-04-09 1977-10-20 Heidapal Spanplattenwerk Gmbh Double faced chipboard panel - has embossed decorative pattern formed in outer layers under heat and pressure in press
US4131705A (en) * 1977-09-06 1978-12-26 International Telephone And Telegraph Corporation Structural laminate
FR2585285A1 (en) * 1985-07-26 1987-01-30 Gazeau Bernard Method for obtaining wooden external covering panels, plates, slabs or tiles, and products resulting therefrom

Also Published As

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EP0519153B1 (en) 1997-07-16
DE59208703D1 (en) 1997-08-21
ATE155396T1 (en) 1997-08-15
DE9107671U1 (en) 1991-08-01

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