CH670067A5 - - Google Patents
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- Publication number
- CH670067A5 CH670067A5 CH868/86A CH86886A CH670067A5 CH 670067 A5 CH670067 A5 CH 670067A5 CH 868/86 A CH868/86 A CH 868/86A CH 86886 A CH86886 A CH 86886A CH 670067 A5 CH670067 A5 CH 670067A5
- Authority
- CH
- Switzerland
- Prior art keywords
- wood
- material according
- grooves
- curve
- glued
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/06—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions for securing layers together; for attaching the product to another member, e.g. to a support, or to another product, e.g. groove/tongue, interlocking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/10—Butting blanks of veneer; Joining same along edges; Preparatory processing of edges, e.g. cutting
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/13—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board all layers being exclusively wood
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2317/00—Animal or vegetable based
- B32B2317/16—Wood, e.g. woodboard, fibreboard, woodchips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2419/00—Buildings or parts thereof
- B32B2419/06—Roofs, roof membranes
Description
BESCHREIBUNG DESCRIPTION
Die Erfindung betrifft einen schichtverleimten Werkstoff, insbesondere Holzwerkstoff, dessen Verwendung zur Herstellung von Kantein und ein Holzelement zur Herstellung des Holzwerkstoffes. The invention relates to a layer-glued material, in particular wood-based material, its use for the production of edge and a wood element for the production of the wood-based material.
Grössere fehlerfreie Holzstämme werden immer rarer und entsprechend kostspieliger. Aus diesem Grunde werden vermehrt schichtverleimte Holzwerkstoffe verwendet. Diese bestehen aus einer Anzahl von Holzschichten, insbesondere von Holzleisten, die an ihren ebenen Stossflächen mittels Leim miteinander verbunden sind. Ein solcher, mehrere Leimschichten oder Leimfugen aufweisender Holzwerkstoff muss unter Bearbeitungsbedingungen und Umwelteinflüssen mindestens die gleiche Stabilität und Widerstandsfähigkeit aufweisen, wie einstückig gewachsenes Holz. Entsprechend hoch sind die an die Verbindungsstellen gestellten Anforderungen. Larger, error-free logs are becoming increasingly rare and correspondingly more expensive. For this reason, layer-glued wood-based materials are increasingly used. These consist of a number of layers of wood, in particular wooden strips, which are connected to each other on their flat butt surfaces by means of glue. Such a wood material, which has multiple layers of glue or glue joints, must have at least the same stability and resistance as processing wood grown in one piece under processing conditions and environmental influences. The demands placed on the connection points are correspondingly high.
Die einzelnen Holzleisten des schichtverleimten Holzwerkstoffes können mittels einer Keilzinkverbindung mit einer weiteren Holzleiste verbunden, d.h. in Richtung des Faserverlaufes, verlängert sein. Bei der Keilzinkverbindung sind die quer zur Faserrichtung liegenden Verbindungsflächen durch eine spitze Winkel aufweisende Sägezahnstruktur vergrössert, d.h. die Wirkung des aufgetragenen Leimes ist über einen grösseren Bereich ausgedehnt; gleichzeitig ist die Bewegungsfreiheit der noch nicht verbundenen, jedoch bereits aneinanderliegenden Holzelemente relativ zueinander in Richtung einer von drei Raumachsen eingeschränkt. The individual wooden strips of the layer-glued wood material can be connected to another wooden strip by means of a finger joint, i.e. lengthened in the direction of the grain. In the finger joint, the connection surfaces lying transversely to the grain direction are enlarged by a sawtooth structure having an acute angle, i.e. the effect of the applied glue is extensive; At the same time, the freedom of movement of the wooden elements that have not yet been connected but are already adjacent to one another is restricted in the direction of one of three spatial axes.
Für die Schichtverleimung, d.h. für Flächenverbindungen, die parallel zu den Holzfasern verlaufen, stehen grössere Verbindungsflächen zur Verfügung, so dass die Verleimung von ebenen Stossflächen für geringe Beanspruchung eine befriedigend stabile Verbindung ergibt. Für stärkere Beanspruchung ist eine Vergrösserung der Stossflächen erwünscht, um eine grössere bindungsfähige Fläche und damit eine stärkere Haftung zu erzielen. For layer gluing, i.e. For surface connections that run parallel to the wood fibers, larger connection surfaces are available, so that the gluing of flat butt surfaces results in a satisfactorily stable connection for low loads. For higher loads, an enlargement of the butting surfaces is desirable in order to achieve a larger bondable area and thus greater adhesion.
Es ist naheliegend, eine solche Vergrösserung der Stossflächen in der Art einer Keilzinkverbindung, d.h. durch Ausbildung einer Sägezahn- oder burgzinnenartigen Struktur, zu erzielen. Diese Verbindungstechnik, die sich für die Längsverbindung der einzelnen Holzschichten bewährt, hat bei der Vergrösserung der Stossflächen den Nachteil, dass beim Längsauftrennen des Holzwerkstoffes, d.h. beim Zuschneiden in Längsrichtung auf das gewünschte Mass, im Bereich der Stossflächen, insbesondere jenem der Ecken und Winkel der Keilzinkverbindung, Stellen mit höherer Neigung zur Splitterbildung entstehen. Solche Bereiche vermindern die Qualität des Endproduktes und sind, insbesondere bei der Herstellung von Kantein, nicht tolerierbar. It is obvious that such an enlargement of the butt surfaces in the manner of a finger joint, i.e. by forming a sawtooth or castle-like structure. This connection technique, which has proven itself for the longitudinal connection of the individual layers of wood, has the disadvantage when enlarging the butt surfaces that when the wood material is cut lengthways, i.e. when cutting to the desired dimension in the longitudinal direction, in the area of the abutting surfaces, in particular that of the corners and angles of the finger joint, spots with a higher tendency to form splinters arise. Such areas reduce the quality of the end product and are not tolerable, especially in the manufacture of edge.
Aufgabe der vorliegenden Erfindung ist es deshalb, einen schichtverleimten Werkstoff, insbesondere Holzwerkstoff mit gegenüber der ebenen vergrösserten Stossfläche, insbesondere für Kantein, vorzuschlagen, d.h. für die Verleimung einen vergrösserten haftwirksamen Bereich zu schaffen, bei dem jedoch beim Längsauftrennen keine zur verstärkten Splitterbildung neigenden Stellen oder Bereiche entstehen. It is therefore an object of the present invention to propose a layer-glued material, in particular wood-based material with an enlarged joint surface compared to the plane, in particular for edge, i.e. to create an enlarged adhesive area for the gluing, in which, however, there are no points or areas that tend to increase splintering during longitudinal separation.
Die gestellte Aufgabe wird erfindungsgemäss durch die Merkmale des kennzeichnenden Teils des Anspruches 1 gelöst. Bevorzugte Ausführungsformen der Erfindung bilden den Gegenstand der Ansprüche 2 bis 7. The object is achieved according to the invention by the features of the characterizing part of claim 1. Preferred embodiments of the invention form the subject of claims 2 to 7.
Erfindungsgemäss wird durch die zueinander parallelen Rillen die Stossfläche, d.h. der haftwirksame Bereich, der einzelnen Schichten vergrössert; gleichzeitig wird durch die besondere Ausgestaltung des Profils der Rillen als stetige Kurve die Neigung zum Absplittern beim Auftrennen des Schichtwerkstoffes eliminiert. Mithin werden erfindungsgemäss die Vorteile zweier diametral entgegengesetzter Stoss-flächenausgestaltungen, nämlich der Winkel- und eckenfreien ebenen und der gezackten vergrösserten Stossfläche, innerhalb einer einzigen Ausgestaltung verwirklicht. According to the invention, the abutting surface, i.e. the adhesive area that enlarges individual layers; at the same time, the special design of the profile of the grooves as a continuous curve eliminates the tendency to split off when the layer material is cut. Thus, according to the invention, the advantages of two diametrically opposed butting surface configurations, namely the angular and corner-free flat and the jagged enlarged butting surface, are realized within a single configuration.
Gleichzeitig wird durch die besondere Form der Stossfläche die Gefahr einer Absplitterung während der Herstellung der Stossflächen gebannt. At the same time, the special shape of the butt surface eliminates the risk of chipping during the manufacture of the butt surfaces.
Ausserdem ist eine gleichmässige Verteilung des auf die Stossflächen aufgebrachten Leimes durch den stetigen Verlauf des erfindungsgemässen Stossflächenprofils gewährleistet. In addition, a uniform distribution of the glue applied to the butting surfaces is ensured by the continuous course of the butting surface profile according to the invention.
Die Herstellung der Stossflächen kann durch Kehlen erfolgen. Die nach dem Kehlen mit parallelen Rillen aufweisenden Stossflächen werden mit Leim versehen, zusammengefügt und in einem geeigneten Presswerkzeug fixiert und bis zum Aushärten des Leimes zusammengepresst. The butt surfaces can be produced by fillets. The abutting surfaces with parallel grooves after the throat are provided with glue, joined and fixed in a suitable pressing tool and pressed together until the glue has hardened.
Zum Verleimen von Holzwerkstoffen wurde bisher Weissleim verwendet; den besonders hohen Anforderungen bei Schichtwerkstoffen genügen Resorzinleime besser. Allerdings ist ihre Verwendung bei hellen Werkstoffen, wegen ihrer dunklen Eigenfarbe, mit esthetischen Nachteilen verbunden. Polyurethankleber zeigen nicht nur eine hohe Verbundkraft, sondern können auch aufhelle Farben, z.B. von Nadelhölzern, eingefärbt werden und werden deshalb besonders bevorzugt. White glue has previously been used for gluing wood-based materials; Resorcinol glues are better suited to the particularly high requirements for coating materials. However, their use in light materials, due to their dark inherent color, is associated with aesthetic disadvantages. Polyurethane adhesives not only show a high bond strength, but can also lighten colors, e.g. of softwoods are colored and are therefore particularly preferred.
Die erfindungsgemässen schichtverleimten Werkstoffe sind auch bei grösserer Beanspruchung stabil und können problemlos auf gewünschte Masse zugeschnitten werden, ohne dass dabei eine Neigung zur Splitterbildung beobachtet The layer-glued materials according to the invention are stable even under greater stress and can be cut to the desired mass without problems, without any tendency towards splinter formation being observed
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wird. Sie eignen sich für die Herstellung von Schichtholzkan-teln und Schichtholzträgern bzw. Schichtholzleimbindern. becomes. They are suitable for the production of plywood strips and plywood beams or plywood glue binders.
Die Erfindung wird anhand der Figuren 1 und 2 weiter veranschaulicht. Es zeigen rein schematisch: The invention is further illustrated with reference to FIGS. 1 and 2. It shows purely schematically:
Fig. 1 einen Querschnitt durch einen erfindungsgemässen schichtverleimten Holzwerkstoff; 1 shows a cross section through a layer-glued wood material according to the invention;
Fig. 2 einen Ausschnitt aus Fig. 1 in vergrössertem Massstab. Fig. 2 shows a detail of Fig. 1 on an enlarged scale.
Der in Fig. 1 dargestellte schichtverleimte Holzwerkstoff 1 weist vier Holzschichten 2 — 5 mit dazwischenliegenden Leimschichten 6 — 8 auf. Die einander zugewandten Stossflächen 9 —14 der einzelnen Holzschichten 2 — 5 sind mit zueinander parallelen Rillen 15, die durch Stege 16 voneinander getrennt sind, versehen. Das Profil der Stossflächen hat annähernd die Form einer stetigen sich wiederholenden Sinuskurve. Die Leimschichten 6 — 8 bestehen aus einem Polyurethankleber, der mit ZnO hell eingefärbt wurde. The layer-glued wood material 1 shown in FIG. 1 has four wood layers 2-5 with glue layers 6-8 in between. The mutually facing abutting surfaces 9-14 of the individual wood layers 2-5 are provided with mutually parallel grooves 15 which are separated from one another by webs 16. The profile of the abutting surfaces has approximately the shape of a continuous, repeating sine curve. The glue layers 6 - 8 consist of a polyurethane glue that has been lightly colored with ZnO.
Die Abmessung der Rillen 15 hängt vom Verwendungszweck und von der Holzart ab. Die Scheitelhöhe einer Sinuskurve, d.h. die Amplitude, kann etwa 1 mm betragen. Vorzugsweise ist die Wellenlänge der Kurve, insbesondere der Sinuskurve, mindestens das 2-fache der Amplitude. Sie kann, wie aus Fig. 2 ersichtlich, auch das etwa 3-fache betragen. Die angegebenen Werte sind jedoch Richtwerte, die der Fachmann nach den eigenen Bedürfnissen variieren kann. The dimension of the grooves 15 depends on the intended use and the type of wood. The vertex height of a sine curve, i.e. the amplitude can be about 1 mm. The wavelength of the curve, in particular the sine curve, is preferably at least twice the amplitude. As can be seen from FIG. 2, it can also be approximately 3 times. However, the values given are guide values which the person skilled in the art can vary according to his own needs.
Selbstverständlich kann der erfindungsgemässe Schichtwerkstoff nicht nur aus Holz, sondern auch aus anderen Materialien, wie Kunststoff oder Metall, bestehen. Of course, the layered material according to the invention can consist not only of wood, but also of other materials, such as plastic or metal.
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1 Blatt Zeichnungen 1 sheet of drawings
Claims (10)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH868/86A CH670067A5 (en) | 1986-03-04 | 1986-03-04 | |
AT0141686A ATA141686A (en) | 1986-03-04 | 1986-05-27 | LAMINATED MATERIAL |
DE19873706710 DE3706710A1 (en) | 1986-03-04 | 1987-03-02 | Glued laminated material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH868/86A CH670067A5 (en) | 1986-03-04 | 1986-03-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH670067A5 true CH670067A5 (en) | 1989-05-12 |
Family
ID=4197051
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH868/86A CH670067A5 (en) | 1986-03-04 | 1986-03-04 |
Country Status (3)
Country | Link |
---|---|
AT (1) | ATA141686A (en) |
CH (1) | CH670067A5 (en) |
DE (1) | DE3706710A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2640311B1 (en) * | 1988-12-14 | 1991-03-29 | Cinema Magnetique Comm | GLUE LAMINATE JOINERY |
AT397489B (en) * | 1992-09-04 | 1994-04-25 | Jandl Adolf | Glued laminated board with a lamella thickness of 45 mm |
DE4237173C2 (en) * | 1992-11-04 | 1996-07-04 | Peri Bv | Wooden belt carrier with full wall web |
DE19606857C2 (en) * | 1996-02-23 | 2001-07-05 | Chiemgauer Holzhaus Siemer & Z | Prefabricated wall element for a building |
EP1074666A3 (en) | 1999-07-26 | 2002-04-17 | Wiesner-Hager Baugruppe Ges.M.B.H. | Connection device for constructional elements made at least in part of wood |
DE20009684U1 (en) * | 2000-06-01 | 2001-10-04 | Holz Schiller Gmbh | Glued plywood for windows, doors and frames therefor |
EP2397288A1 (en) * | 2010-06-14 | 2011-12-21 | Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO | A method for joining at least two elements |
CN106625908A (en) * | 2016-12-01 | 2017-05-10 | 兴业县金达木材有限公司 | Manufacturing method of waste laminated wood |
-
1986
- 1986-03-04 CH CH868/86A patent/CH670067A5/de not_active IP Right Cessation
- 1986-05-27 AT AT0141686A patent/ATA141686A/en not_active Application Discontinuation
-
1987
- 1987-03-02 DE DE19873706710 patent/DE3706710A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
ATA141686A (en) | 1993-09-15 |
DE3706710A1 (en) | 1987-09-10 |
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Legal Events
Date | Code | Title | Description |
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PL | Patent ceased |