EP0272342B1 - Table top or working surface and method for its production - Google Patents
Table top or working surface and method for its production Download PDFInfo
- Publication number
- EP0272342B1 EP0272342B1 EP86118009A EP86118009A EP0272342B1 EP 0272342 B1 EP0272342 B1 EP 0272342B1 EP 86118009 A EP86118009 A EP 86118009A EP 86118009 A EP86118009 A EP 86118009A EP 0272342 B1 EP0272342 B1 EP 0272342B1
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- EP
- European Patent Office
- Prior art keywords
- blocks
- plate
- veneer layers
- veneer
- longitudinal
- 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.)
- Expired - Lifetime
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
- E04C2/12—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of solid wood
-
- 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
- B27D1/04—Joining 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
Definitions
- the invention relates to a table or worktop and to a method for their production.
- table tops or worktops as a blockboard, a multilayer veneer panel being arranged between two outer cover layers, which can be made of wood or plastic. All layers run parallel to the plate level.
- the appearance of such a table or worktop is determined exclusively by the top layer, which either has a predetermined pattern or whose pattern consists of a veneer grain.
- Boards made of layers running parallel to the board level, if they are made of wood, have the disadvantage that warping can occur due to the influence of heat and / or moisture.
- Such plates are not dimensionally stable. Plates whose Surface consisting of the grain side of a veneer layer are susceptible to damage and scratches because the veneer side is relatively soft.
- the brain side is the hardest side of wood, especially veneer.
- the side of the brain is the side of the cut that is directed across the grain or across the main grain of the wood. If you were to assemble a panel of pieces of wood with the end faces of the surface forming the surface, similar to what happens occasionally with parquet floors, such a panel would be susceptible to cracks, because wood whose end face forms the surface tears more easily than wood whose long side (in the direction of the grain) cut) forms the top.
- a parquet element is known, in the top of which end grain strips and strips alternate with longitudinal fibers.
- a multiplex panel is first produced from a plurality of veneer layers, with adjacent veneer layers having fiber directions running at right angles to one another.
- the parquet elements are then cut out of this multiplex panel by cuts running perpendicular to the veneer layers.
- the multiplex board has an odd number of veneer layers, which means that the outer veneer layers have the same fiber directions. If two such blocks are placed against one another, the boundary layers, which are oriented identically to one another, form a visible strip.
- a multilayer board, from which the preamble of claim 1 is based, is known from FR-A-1 162 350. This board consists of individual, multilayer blocks.
- the invention has for its object to provide a table or worktop made of wood, which has a pleasing, varied appearance, is stable, impact resistant and resistant to cracks.
- the veneer layers do not run as usual, parallel to the plate plane, but perpendicular to it.
- the parallel veneer layers extend through the entire panel thickness, so that the same veneer layers appear visibly on the top and bottom of the panel. Since the fiber directions of adjacent veneer layers in each block run at right angles to one another, narrow stripe patterns result on the main board surfaces, the width of each stripe corresponding to the veneer thickness.
- the brain edges of the veneer layers are darker than the longitudinal edges, so that light and dark stripes alternate. Since the board consists of alternating impact-resistant, end-grain end grain and soft but tear-resistant long wood edges of the veneer, it combines the properties of both edges, namely high resistance and low susceptibility to cracking.
- Another advantage of the board is its high shape consistency, even under unfavorable environmental conditions.
- Claim 5 is based in its generic term on the prior art according to FR-A-1 162 350.
- the blocks are produced directly by cutting the layer plate. This creates colored strips in the finished panel, the length of which generally corresponds to that of the layered panel.
- the layer-plate is first divided into rectangular units by cuts transverse to the plane of the plate when the method is modified; at least some units are redistributed in the plate level; the units are then glued to one another at their cut surfaces in order to produce an auxiliary plate, and finally the auxiliary plate is divided transversely to the glued cut surfaces to form the blocks.
- each block consists of elements which come from different units of the layer plate, which were not previously adjacent in the same way as they are arranged within the block.
- the end grain layers and the long wood layers each remain in the same plane, so that the striped pattern is retained in the finished panel, with only end grain elements being visible within one strip and only long wood elements within the adjacent strips. The color changes only at the plate edges.
- Fig. 1 the veneer layers 10 and 11 of a layer board 12 made of beech wood are shown.
- Each of these veneer layers consists of a rectangular plate with a thickness of approximately 2 mm.
- the veneer grain 13 runs in each case in the main sides of the board.
- the direction of the wood fibers runs in every second veneer layer 10 in the longitudinal direction of the board and in every veneer layer 11 in the transverse direction of the board. This can be seen from the fact that the main direction of the grain 13 is longitudinal in the veneer layers 10 and transverse in the veneer layers 11.
- the edge that runs transversely to the wood fiber direction is the brain edge 14 and the edge that runs parallel to the wood fibers is the longitudinal edge 15.
- edges 15 and longitudinal edges 14 alternate with one another, ie lie on top of each other. These edges also change on the long side of the layered panel, but for example the veneer layer 10 has a long edge 15 on the long side and a brain edge 14 on the long side, while the adjacent veneer layer 11 has a brain edge 14 on the long side and a long edge 15 on the long side having.
- the layer board 12 is divided into blocks 1, 2, 3, 4,..., Each of which has a width, by vertical longitudinal cuts 16, which are guided through all the veneer layers 10, 11 lying one above the other. which corresponds to the thickness of the table or worktop to be manufactured.
- These blocks 1, 2, 3, 4, ... are then laid flat according to FIG. 3, with their long sides 17 placed against one another and glued.
- the blocks can be offset in the longitudinal direction according to FIG. 4, whereby, similar to masonry, the blocks of one row are offset with respect to the blocks of the adjacent row, for example by half a block length.
- Each block consists of an elongated strip, the height h of which is approximately 30 mm. All blocks have that same width and they consist of the same number of veneer layers 10,11.
- the veneer layers of two blocks 3, 2 arranged one behind the other in the longitudinal direction are aligned with one another, ie the brain edges 14 each form a continuous strip in the panel surface and the longitudinal edges 15 likewise form a continuous strip.
- the layer board 12 has an even number of veneer layers, so that in the finished board two laterally adjacent blocks each adjoin one another with a brain edge 14 of one block and a longitudinal edge 15 of the other block.
- the table or worktop 20 is produced, a section of which is shown in FIG. 4.
- the blocks do not necessarily have to be made from a single layer plate 12, but they can also come from different layer plates.
- a layer plate 12 which is that of FIGS. 1 and 2 corresponds, divided by transverse cuts 21 into rectangular units I, II, III and IV. These units are then rearranged according to FIG. 6, for example in the order I, III, II, IV. In this order, the units are referred to below as A, B, C, D. The units are then glued together with their cut surfaces 21 in the rearranged order.
- FIG. 6 the sequence of veneer layers 10 and 11 remains the same as for the layer board 12 according to FIG. 5, but each of the veneer layers still continuous in the layer board has now been interrupted and redistributed several times.
- the auxiliary plate 22 shown in FIG. 7 is produced, which has the same dimensions and the same shape as the layer plate 12. The redistribution of the units can be seen in that the grains 13 on the top of the auxiliary plate 22 are not continuous Form structure, but have broken off at the glued interfaces 21.
- the auxiliary plate 22 is now cut into blocks 1, 2, 3, 4, 5,..., Transversely to the glued surfaces 21, as shown in FIG. 7, block 1 consisting, for example, of elements A1, B1, C1 and D1.
- the letters A, B, C, D each mean the origin from the relevant unit.
- Each block has a width that corresponds to the thickness of the table top to be manufactured.
- unit I or A was produced at the end of the layer plate with half the width of the remaining units. This means that the element A1, A2, A3 in each block has half the length of the other elements.
- the blocks are now laid flat according to FIG. 7 and, according to FIG. 8, placed with their long sides against one another and glued in a common plane.
- the length of the table or worktop 20 according to FIG. 8 is equal to the block length and this is equal to the length of the layer plate 12 or the auxiliary plate 22.
- the offset of the elements in block 1 to those in block 2 is achieved in that the shorter elements A1, A2, A3 and A4 are arranged in adjacent blocks at opposite ends, ie block 2 is rotated by 180 ° with respect to block 1.
- the number of veneer layers with longitudinal grain is the same as that of veneer layers with transverse grain. Therefore, the outer veneer layer of a block in the adjacent block is followed by a veneer layer that is grained at right angles to it, so that the alternating color pattern of the strips is not disturbed.
- the veneer layers are continuous within each block, although the color tint can vary slightly from element to element.
- the edges of the table or work surface can be ground round, whereby the stripes, which extend through the entire material thickness, continue into the edge surfaces.
- Fig. 9 to 11 show the formation of a reinforced edge.
- the plate is provided with a miter cut 23, to which a block strip 24, likewise provided with a miter cut, made of the veneer material described is attached.
- the block strip 24 projects downward beyond the plate 20 and forms an edge reinforcement.
- the edge can then be ground as shown in FIG. 10.
- Fig. 11 shows the transverse edge of the table or worktop with block block 24 attached to illustrate the continuous course of the stripe pattern.
- the plate edge 26 running transversely to the veneer strips 25 has the inverse striped pattern like the top of the table or worktop. If the longitudinal edge were cut vertically, this edge would run within a single layer of veneer and have no stripe pattern.
- the table top is provided with a miter cut 27 on the longitudinal edge and the block strip 28 is glued to this, which is made in the manner described from several layers of veneer.
- the layers of the block strip 28 run horizontally in the longitudinal direction of the table or worktop, that is to say parallel to the strips 25 at the top.
- a circular table or work surface 20 is shown, which is made of numerous rectangular elongated blocks 30.
- the table or worktop is divided into four quadrants 31, 32, 33, 34 and in each quadrant the blocks 30 are arranged so that their longitudinal axes are aligned parallel to the horizontal central axis of the quadrant.
- the blocks 30 accordingly have the same orientation and in the intermediate quadrants 32 and 34 they are oriented at right angles thereto. At the borders of the quadrants, the blocks meet at right angles.
- the arrangement of the blocks described has the advantage that in the edge region of the round or oval table or work surface, the stripe patterns can be continued into the vertical edge surfaces without the strips being too wide there.
- the blocks forming the edge and their stripes run at an angle of no more than 45 ° to the tangent of the circle. Although the stripes in the edge regions of the quadrants become wider on the vertical peripheral surface of the table than in the central region of the quadrant, stripes which are not too wide are produced.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Architecture (AREA)
- Forests & Forestry (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Manufacture Of Wood Veneers (AREA)
- Laminated Bodies (AREA)
- Finished Plywoods (AREA)
- Veneer Processing And Manufacture Of Plywood (AREA)
- Multi-Process Working Machines And Systems (AREA)
- Press Drives And Press Lines (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Tisch- oder Arbeitsplatte sowie auf ein Verfahren zu ihrer Herstellung.The invention relates to a table or worktop and to a method for their production.
Es ist bekannt, Tisch- oder Arbeitsplatten als Tischlerplatte herzustellen, wobei eine mehrschichtige Furnierplatte zwischen zwei äußeren Deckschichten, die aus Holz oder Kunststoff bestehen können, angeordnet wird. Sämtliche Schichten verlaufen parallel zur Plattenebene. Das Erscheinungsbild einer solchen Tisch-oder Arbeitsplatte wird ausschließlich von der Deckschicht bestimmt, die entweder ein vorbestimmtes Muster hat oder deren Muster aus einer Furniermaserung besteht. Platten aus parallel zur Plattenebene verlaufenden Schichten haben, sofern sie aus Holz bestehen, den Nachteil, daß durch den Einfluß von Wärme und/oder Feuchtigkeit Verwerfungen auftreten können. Solche Platten sind nicht formstabil. Platten, deren Oberfläche aus der Maserungsseite einer Furnierschicht besteht, sind anfällig gegen Beschädigungen und Kratzer, weil die Furnierseite relativ weich ist.It is known to produce table tops or worktops as a blockboard, a multilayer veneer panel being arranged between two outer cover layers, which can be made of wood or plastic. All layers run parallel to the plate level. The appearance of such a table or worktop is determined exclusively by the top layer, which either has a predetermined pattern or whose pattern consists of a veneer grain. Boards made of layers running parallel to the board level, if they are made of wood, have the disadvantage that warping can occur due to the influence of heat and / or moisture. Such plates are not dimensionally stable. Plates whose Surface consisting of the grain side of a veneer layer are susceptible to damage and scratches because the veneer side is relatively soft.
Bei Holz, insbesondere Furnierholz, bildet die Hirnseite die härteste Seite. Die Hirnseite ist diejenige Schnittseite, die quer zur Maserung bzw. quer zur Hauptfaserrichtung des Holzes gerichtet ist. Wenn man eine Platte aus Holzstücken zusammensetzen würde, deren Hirnseiten die Oberfläche bilden, ähnlich wie dies gelegentlich bei Parkettfußböden geschieht, wäre eine solche Platte anfällig gegen Risse, weil Holz, dessen Hirnseite die Oberfläche bildet, leichter reißt als Holz, dessen Langseite (in Faserrichtung geschnitten) die Oberseite bildet.The brain side is the hardest side of wood, especially veneer. The side of the brain is the side of the cut that is directed across the grain or across the main grain of the wood. If you were to assemble a panel of pieces of wood with the end faces of the surface forming the surface, similar to what happens occasionally with parquet floors, such a panel would be susceptible to cracks, because wood whose end face forms the surface tears more easily than wood whose long side (in the direction of the grain) cut) forms the top.
Aus DE-B-1 509 649 ist ein Parkettelement bekannt, in dessen Oberseite sich Hirnholzstreifen und Streifen mit längslaufenden Fasern abwechseln. Zur Herstellung des Parkettelements wird zunächst eine Multiplex-Platte aus mehreren Furnierschichten erzeugt, wobei benachbarte Furnierschichten rechtwinklig zueinander verlaufende Faserrichtungen haben. Aus dieser Multiplex-Platte werden dann die Parkettelemente durch senkrecht zu den Furnierschichten verlaufende Schnitte herausgeschnitten. Die Multiplex-Platte hat eine ungerade Anzahl von Furnierschichten, wodurch die äußeren Furnierschichten untereinander gleiche Faserrichtungen haben. Wenn zwei derartige Blöcke gegeneinandergesetzt werden, bilden die untereinander gleich orientierten Begrenzungsschichten einen sichtbaren Streifen.From DE-B-1 509 649 a parquet element is known, in the top of which end grain strips and strips alternate with longitudinal fibers. To produce the parquet element, a multiplex panel is first produced from a plurality of veneer layers, with adjacent veneer layers having fiber directions running at right angles to one another. The parquet elements are then cut out of this multiplex panel by cuts running perpendicular to the veneer layers. The multiplex board has an odd number of veneer layers, which means that the outer veneer layers have the same fiber directions. If two such blocks are placed against one another, the boundary layers, which are oriented identically to one another, form a visible strip.
Eine mehrschichtige Platte, von der der Oberbegriff des Patentanspruchs 1 ausgeht, ist bekannt aus FR-A-1 162 350. Diese Platte besteht aus einzelnen, mehrschichtigen Blöcken.A multilayer board, from which the preamble of claim 1 is based, is known from FR-A-1 162 350. This board consists of individual, multilayer blocks.
Der Erfindung liegt die Aufgabe zugrunde, eine Tisch- oder Arbeitsplatte aus Holz zu schaffen, die ein gefälliges, abwechslungsreiches Aussehen hat, stabil, schlagzäh und widerstandsfähig gegen Risse ist.The invention has for its object to provide a table or worktop made of wood, which has a pleasing, varied appearance, is stable, impact resistant and resistant to cracks.
Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des Patentanspruchs 1 gelöst.This object is achieved with the features of claim 1.
Bei der erfindungsgemäßen Tisch- oder Arbeitsplatte verlaufen die Furnierschichten nicht, wie üblich, parallel zur Plattenebene, sondern senkrecht hierzu. Die parallelen Furnierschichten erstrecken sich durch die gesamte Plattenstärke, so daß dieselben Furnierschichten an der Oberseite und an der Unterseite der Platte sichtbar in Erscheinung treten. Da in jedem Block die Faserrichtungen benachbarter Furnierschichten rechtwinklig zueinander verlaufen, ergeben sich an den Plattenhauptflächen schmale Streifenmuster, wobei die Breite jedes Streifens der Furnierstärke entspricht. Die Hirnkanten der Furnierschichten sind dunkler als die Längskanten, so daß helle und dunkle Streifen einander abwechseln. Da die Platte aus abwechselnden schlagzähen, widerstandsfähigen Hirnholzkanten und weichen, aber reißfesten Langholzkanten des Furniers besteht, vereinigt sie die Eigenschaften beider Kanten, nämlich hohe Widerstandsfestigkeit und geringe Anfälligkeit gegen Rißbildung. Besonders hervorzuheben ist das abwechslungsreiche Streifenmuster, das keineswegs eintönig ist, da die natürliche Färbung jeder einzelnen Schicht in Längsrichtung variiert. Als Holz für die erfindungsgemäße Platte eignet sich insbesondere Buchenholz, wobei die Furnierstärke etwa 2 mm betragen sollte. Natürlich sind auch andere Furnierstärken möglich.In the table or worktop according to the invention, the veneer layers do not run as usual, parallel to the plate plane, but perpendicular to it. The parallel veneer layers extend through the entire panel thickness, so that the same veneer layers appear visibly on the top and bottom of the panel. Since the fiber directions of adjacent veneer layers in each block run at right angles to one another, narrow stripe patterns result on the main board surfaces, the width of each stripe corresponding to the veneer thickness. The brain edges of the veneer layers are darker than the longitudinal edges, so that light and dark stripes alternate. Since the board consists of alternating impact-resistant, end-grain end grain and soft but tear-resistant long wood edges of the veneer, it combines the properties of both edges, namely high resistance and low susceptibility to cracking. Of particular note is the varied stripe pattern, which is by no means monotonous, since the natural color of each individual layer varies in the longitudinal direction. Beech wood is particularly suitable as wood for the board according to the invention, the veneer thickness being approximately 2 mm. Of course, other veneer thicknesses are also possible.
Ein weiterer Vorteil der Platte besteht in ihrer hohen Formkonstanz, auch unter ungünstigen Umweltbedingungen.Another advantage of the board is its high shape consistency, even under unfavorable environmental conditions.
Ein Verfahren zur Herstellung einer erfindungs gemäßen Tisch- oder Arbeitsplatte ist in Patentanspruch 5 angegeben. Anspruch 5 geht in seinem gattungsbegriff aus vom Stand der Technik nach FR-A-1 162 350.A method for producing a table or worktop according to the Invention is specified in claim 5. Claim 5 is based in its generic term on the prior art according to FR-A-1 162 350.
Bei einer ersten Ausführungsform des erfindungsgemäßen Verfahrens werden die Blöcke unmittelbar durch Zerschneiden der Schicht-Platte erzeugt. Hierbei entstehen in der fertigen Platte farbige Streifen, deren Länge in der Regel derjenigen der Schicht-Platte entsprechen. Um ein abwechslungsreicheres Streifenmuster ohne lange, durchgehende, gleichfarbige Streifen zu erzielen, wird bei einer Abwandlung des Verfahrens die Schicht-Platte durch Schnitte quer zur Plattenebene zunächst in rechteckige Einheiten unterteilt; mindestens einige Einheiten werden in der Plattenebene umverteilt; die Einheiten werden anschließend zur Erzeugung einer Hilfsplatte an ihren Schnittflächen wieder miteinander verleimt und schließlich wird die Hilfsplatte quer zu den verleimten Schnittflächen zu den Blöcken unterteilt.In a first embodiment of the method according to the invention, the blocks are produced directly by cutting the layer plate. This creates colored strips in the finished panel, the length of which generally corresponds to that of the layered panel. In order to achieve a more varied stripe pattern without long, continuous, same-colored stripes, the layer-plate is first divided into rectangular units by cuts transverse to the plane of the plate when the method is modified; at least some units are redistributed in the plate level; the units are then glued to one another at their cut surfaces in order to produce an auxiliary plate, and finally the auxiliary plate is divided transversely to the glued cut surfaces to form the blocks.
Bei der Abwandlung des Verfahrens besteht jeder Block aus Elementen, die aus unterschiedlichen Einheiten der Schicht-Platte stammen, welche vorher nicht in der gleichen Weise benachbart waren, wie sie innerhalb des Blocks angeordnet sind. Trotz der Umverteilung der in den Blöcken enthaltenen Elemente bleiben die Hirnholzschichten und die Langholzschichten jeweils in der gleichen Ebene, so daß in der fertigen Platte das Streifenmuster beibehalten wird, wobei innerhalb eines Streifens ausschließlich Hirnholzelemente und innerhalb der benachbarten Streifen ausschließlich Langholzelemente sichtbar sind. Lediglich an den Plattenkanten wechseln die Färbungen.In the modification of the method, each block consists of elements which come from different units of the layer plate, which were not previously adjacent in the same way as they are arranged within the block. Despite the redistribution of the elements contained in the blocks, the end grain layers and the long wood layers each remain in the same plane, so that the striped pattern is retained in the finished panel, with only end grain elements being visible within one strip and only long wood elements within the adjacent strips. The color changes only at the plate edges.
Im folgenden werden unter Bezugnahme auf die Zeichnungen Ausführungsbeispiele der Erfindung näher erläutert.Exemplary embodiments of the invention are explained in more detail below with reference to the drawings.
Es zeigen:
- Fig. 1
- eine Explosionsdarstellung einer Schicht-Platte, die das Grundmaterial für die herzustellende Tisch- oder Arbeitsplatte darstellt,
- Fig. 2
- eine perspektivische Ansicht der Schicht-Platte,
- Fig. 3
- das Umordnen mehrerer aus der Schicht-Platte hergestellter Blöcke bei der ersten Variante des erfindungsgemäßen Verfahrens,
- Fig. 4
- einen Ausschnitt aus einer Tisch- oder Arbeitsplatte, die nach der ersten Verfahrensvariante hergestellt ist,
- Fig. 5
- das Zerschneiden der Schicht-Platte zu Einheiten zur Durchführung der zweiten Variante des erfindungsgemäßen Verfahrens,
- Fig. 6
- das Umordnen der Einheiten zu der Hilfsplatte,
- Fig. 7
- das Zerschneiden der Hilfsplatte zu Blöcken und das Flachlegen der Blöcke,
- Fig. 8
- eine Tisch- oder Arbeitsplatte, die aus mehreren Blöcken zusammengesetzt ist,
- Fig. 9
- den Randbereich einer Tisch- oder Arbeitsplatte mit heruntergezogenem Rand,
- Fig. 10
- den Randbereich nach Fig. 9 nach dem Rundschleifen,
- Fig. 11
- eine Ansicht des querlaufenden Randbereichs,
- Fig. 12
- die Herstellung des Randbereichs an einer längslaufenden Kante der Tisch- oder Arbeitsplatte und
- Fig. 13
- eine aus den Blöcken hergestellte runde Tischplatte.
- Fig. 1
- an exploded view of a layer plate, which is the basic material for the table or worktop to be produced,
- Fig. 2
- a perspective view of the layer plate,
- Fig. 3
- the rearrangement of several blocks produced from the layer plate in the first variant of the method according to the invention,
- Fig. 4
- a section of a table or worktop which is produced according to the first process variant,
- Fig. 5
- cutting the layer plate into units for carrying out the second variant of the method according to the invention,
- Fig. 6
- rearranging the units to the auxiliary plate,
- Fig. 7
- cutting the auxiliary plate into blocks and laying the blocks flat,
- Fig. 8
- a table or worktop made up of several blocks,
- Fig. 9
- the edge area of a table or worktop with the edge pulled down,
- Fig. 10
- 9 after the cylindrical grinding,
- Fig. 11
- a view of the transverse edge area,
- Fig. 12
- the production of the edge area on a longitudinal edge of the table or worktop and
- Fig. 13
- a round table top made from the blocks.
In Fig. 1 sind die Furnierschichten 10 und 11 einer Schicht-Platte 12 aus Buchenholz dargestellt. Jede dieser Furnierschichten besteht aus einer rechtwinkligen Platte mit einer Stärke von etwa 2 mm. Die Furniermaserung 13 verläuft jeweils in den Plattenhauptseiten. Die Richtung der Holzfasern verläuft in jeder zweiten Furnierschicht 10 in Plattenlängsrichtung und in jeder Furnierschicht 11 in Plattenquerrichtung. Dies ist daran erkennbar, daß die Hauptrichtung der Maserung 13 in den Furnierschichten 10 längsgerichtet und in den Furnierschichten 11 quergerichtet ist. Diejenige Kante, die quer zur Holzfaserrichtung verläuft, ist die Hirnkante 14 und diejenige Kante, die parallel zu den Holzfasern verläuft, ist die Längskante 15. Man erkennt, daß an jeder Stirnseite der Schicht-Platte 12 Hirnkanten 15 und Längskanten 14 einander abwechseln, d.h. übereinanderliegen. Ebenfalls wechseln diese Kanten an der Längsseite der Schicht-Platte, jedoch hat beispielsweise die Furnierschicht 10 an der Längsseite eine Längskante 15 und an der Stirnseite eine Hirnkante 14, während die benachbarte Furnierschicht 11 an der Längsseite eine Hirnkante 14 und an der Stirnseite eine Längskante 15 aufweist.In Fig. 1, the veneer layers 10 and 11 of a
Bei der ersten Ausführungsform des Verfahren wird die Schicht-Platte 12 durch vertikale Längsschnitte 16, die durch sämtliche übereinanderliegenden Furnierschichten 10, 11 geführt sind, in Blöcke 1,2,3,4,... unterteilt, von denen jeder eine Breite hat, die der Stärke der herzustellenden Tisch- oder Arbeitsplatte entspricht. Diese Blöcke 1,2,3,4,... werden anschließend gemäß Fig. 3 flachgelegt, mit ihren Längsseiten 17 gegeneinandergelegt und verklebt. Die Blöcke können dabei gemäß Fig. 4 in Längsrichtung gegeneinander versetzt werden, wobei, ähnlich wie bei einem Mauerwerk, die Blöcke einer Reihe in bezug auf die Blöcke der benachbarten Reihe gegeneinander, z.B. um eine halbe Blocklänge, versetzt sind. Jeder Block besteht aus einem langgestreckten Streifen, dessen Höhe h etwa 30 mm beträgt. Alle Blöcke haben die gleiche Breite und sie bestehen aus der gleichen Zahl von Furnierschichten 10,11. Die Furnierschichten zweier in Längsrichtung hintereinander angeordneter Blöcke 3,2 sind zueinander ausgerichtet, d.h. die Hirnkanten 14 bilden in der Plattenoberfläche jeweils einen durchgehenden Streifen und die Längskanten 15 bilden ebenfalls einen durchgehenden Streifen. Die Schicht-Platte 12 hat eine geradzahlige Anzahl von Furnierschichten, so daß in der fertigen Platte jeweils zwei seitlich benachbarte Blöcke mit einer Hirnkante 14 des einen Blocks und einer Längskante 15 des anderen Blocks aneinander angrenzen.In the first embodiment of the method, the
Auf die beschriebene Weise entsteht die Tisch- oder Arbeitsplatte 20, von der in Fig. 4 ein Ausschnitt dargestellt ist. Die Blöcke müssen nicht notwendigerweise aus einer einzigen Schicht-Platte 12 hergestellt sein, sondern sie können auch aus unterschiedlichen Schicht-Platten stammen.In the manner described, the table or
Da es in jedem Fall günstig ist, die Länge der Blöcke möglichst groß zu machen, besteht die Gefahr, daß beispielsweise ein besonders stark gefärbter Hirnholzstreifen sich über eine große Länge der Tischplatte erstreckt und im Streifenmuster besonders hervortritt. Dieser Nachteil wird mit dem im folgenden anhand der Fign. 5 bis 8 erläuterten zweiten Verfahren vermieden.Since it is favorable in any case to make the length of the blocks as large as possible, there is a risk that, for example, a particularly strongly colored end grain strip extends over a large length of the table top and particularly stands out in the striped pattern. This disadvantage is overcome with the following on the basis of FIGS. 5 to 8 explained second method avoided.
Bei dem abgewandelten Verfahren wird eine Schicht-Platte 12, die derjenigen der Fign. 1 und 2 entspricht, durch querverlaufende Schnitte 21 in rechteckige Einheiten I, II, III und IV unterteilt. Diese Einheiten werden anschließend gemäß Fig. 6 umgeordnet, beispielsweise in der Reihenfolge I, III, II, IV. In dieser Reihenfolge werden die Einheiten nachfolgend mit A,B,C,D bezeichnet. Die Einheiten werden anschließend mit ihren Schnittflächen 21 in der umgeordneten Reihenfolge wieder zusammengeleimt. Wie aus Fig. 6 erkennbar ist, bleibt dabei die Folge der Furnierschichten 10 und 11 die gleiche, wie bei der Schicht-Platte 12 nach Fig. 5, jedoch ist jede der in der Schicht-Platte noch durchgehenden Furnierschichten jetzt mehrfach unterbrochen und umverteilt worden. Auf diese Weise entsteht die in Fig. 7 dargestellte Hilfsplatte 22, die die gleichen Abmessungen und die gleiche Form hat, wie die Schicht-Platte 12. Die Umverteilung der Einheiten ist dadurch erkennbar, daß die Maserungen 13 an der Oberseite der Hilfsplatte 22 keine durchgehende Struktur bilden, sondern an den verleimten Schnittstellen 21 abgebrochen sind.In the modified method, a
Die Hilfsplatte 22 wird nun, gemäß Fig. 7 quer zu den verleimten Flächen 21 in Blöcke 1,2,3,4,5,... zerschnitten, wobei der Block 1 beispielsweise aus den Elementen A1, B1, C1 und D1 besteht. Der Buchstabe A,B,C,D bedeutet jeweils die Herkunft aus der betreffenden Einheit. Jeder Block hat eine Breite, die der Stärke der herzustellenden Tischplatte entspricht. Bei der Herstellung der Einheiten durch Zerschneiden der Schicht-Platte 12 ist die Einheit I oder A am Ende der Schicht-Platte mit der halben Breite der übrigen Einheiten hergestellt worden. Dies führt dazu, daß das Element A1,A2,A3 in jedem Block die halbe Länge der übrigen Elemente hat. Die Blöcke werden nun gemäß Fig. 7 flachgelegt und gemäß Fig. 8 mit ihren Längsseiten gegeneinandergelegt und in einer gemeinsamen Ebene verleimt. Die Länge der Tisch- oder Arbeitsplatte 20 nach Fig. 8 ist gleich der Blocklänge und diese ist gleich der Länge der Schicht-Platte 12 bzw. der Hilfsplatte 22. Der Versatz der Elemente in Block 1 zu denjenigen in Block 2 wird dadurch erreicht, daß die kürzeren Elemente A1,A2,A3 und A4 in benachbarten Blöcken an entgegengesetzten Enden angeordnet werden, d.h. Block 2 ist in Bezug auf Block 1 um 180 ° gedreht. In jedem Block ist die Zahl der Furnierschichten mit längslaufender Maserung gleich derjenigen der Furnierschichten mit querlaufender Maserung. Daher schließt sich an die äußere Furnierschicht eines Blockes im benachbarten Block eine Furnierschicht an, die rechtwinklig hierzu gemasert ist, so daß das abwechselnde Farbmuster der Streifen nicht gestört wird. Innerhalb eines jeden Blockes sind die Furnierschichten durchgehend, wobei die Farbtönung jedoch von Element zu Element geringfügig variieren kann.The
Die Kanten der Tisch- oder Arbeitsfläche können rundgeschliffen werden, wobei die Streifen, die sich durch die gesamte Materialstärke erstrecken, sich in die Kantenflächen hinein fortsetzen. Fign. 9 bis 11 zeigen die Ausbildung einer verstärkten Randkante. Hierzu wird die Platte mit einem Gehrungsschnitt 23 versehen, an den eine ebenfalls mit einem Gehrungsschnitt versehene Blockleiste 24 aus dem beschriebenen Furniermaterial angesetzt wird. Die Blockleiste 24 ragt nach unten über die Platte 20 hinaus und bildet eine Kantenverstärkung. Die Kante kann anschließend gemäß Fig. 10 rundgeschliffen werden.The edges of the table or work surface can be ground round, whereby the stripes, which extend through the entire material thickness, continue into the edge surfaces. Fig. 9 to 11 show the formation of a reinforced edge. For this purpose, the plate is provided with a miter cut 23, to which a
Fig. 11 zeigt die Querkante der Tisch- oder Arbeitsplatte mit angesetzter Blockleiste 24, um den durchgehenden Verlauf des Streifenmusters zu verdeutlichen. Die quer zu den Furnierstreifen 25 verlaufende Plattenkante 26 hat gemäß Fig. 12 das inverse Streifenmuster wie die Oberseite der Tisch- oder Arbeitsplatte. Wenn die längslaufende Kante vertikal abgeschnitten würde, würde diese Kante innerhalb einer einzigen Furnierschicht verlaufen und kein Streifenmuster aufweisen.Fig. 11 shows the transverse edge of the table or worktop with
Aus diesem Grund wird die Tischplatte an der längslaufenden Kante mit einem Gehrungsschnitt 27 versehen und an diesen wird die Blockleiste 28 angeleimt, die in der beschriebenen Weise aus mehreren Furnierschichten hergestellt ist. Die Schichten der Blockleiste 28 verlaufen horizontal in Längsrichtung der Tisch- oder Arbeitsplatte, also parallel zu den Streifen 25 an der Oberseite.For this reason, the table top is provided with a miter cut 27 on the longitudinal edge and the
In Fig. 13 ist eine kreisförmige Tisch- oder Arbeitsfläche 20 dargestellt, die aus zahlreichen rechteckigen länglichen Blöcken 30 hergestellt ist. Die Tisch- oder Arbeitsplatte ist in vier Quadranten 31,32,33,34 unterteilt und in jedem Quadranten sind die Blöcke 30 so angeordnet, daß sie mit ihrer Längsachse parallel zur horizontalen Mittelachse des Quadranten ausgerichtet sind. In den beiden einander gegenüberliegenden Quadranten 31 und 33 haben die Blöcke 30 demnach die gleiche Ausrichtung und in den dazwischenliegenden Quadranten 32 und 34 sind sie rechtwinklig hierzu ausgerichtet. An den Grenzen der Quadranten stoßen die Blöcke rechtwinklig gegeneinander.13, a circular table or
Die beschriebenen Anordnung der Blöcke hat den Vorteil, daß im Randbereich der runden oder ovalen Tisch- oder Arbeitsfläche die Streifenmuster in die vertikalen Randflächen fortgesetzt werden können, ohne daß die Streifen dort eine zu große Breite erhalten würden. Die den Rand bildenden Blöcke und ihre Streifen verlaufen unter einem Winkel von maximal 45 ° zur Kreistangente. Zwar werden die Streifen in den Randbereichen der Quadranten an der vertikalen Umfangsfläche des Tisches breiter als im Mittelbereich des Quadranten, jedoch werden keine allzu breiten Streifen erzeugt.The arrangement of the blocks described has the advantage that in the edge region of the round or oval table or work surface, the stripe patterns can be continued into the vertical edge surfaces without the strips being too wide there. The blocks forming the edge and their stripes run at an angle of no more than 45 ° to the tangent of the circle. Although the stripes in the edge regions of the quadrants become wider on the vertical peripheral surface of the table than in the central region of the quadrant, stripes which are not too wide are produced.
Claims (7)
- A table or working plate of a plurality of glued together veneer layers (10, 11), wherein numerous narrow blocks (1, 2, 3, 4,...) of a plurality of veneer layers (10, 11) are glued together at their longitudinal sides,
characterised in
that said veneer layers (10, 11) extend perpendicular to the plate plane, and front edges (14) and longitudinal edges (15) of said veneer layers (10, 11) are arranged alternatingly in the plate surface, that two respective laterally adjacent blocks abut each other by two faces to which the fibers extend substantially parallel, the fibers of the one face crossing the fibers of the other face, and that the veneer layers of two blocks sequentially arranged in the longitudinal direction extend in the same direction, respectively. - The table and working plate of claim 1, characterised in that the rectangular blocks (1, 2, 3, 4,...) are arranged in longitudinally extending rows and that the blocks of one row are offset in the longitudinal direction from the blocks of the two adjacent rows.
- The table and working plate of claim 1 or 2, characterised in that the longitudinal extension of at least several abutting blocks (30) extend rectangular to each other.
- The table and working plate of one of claims 1 to 3, characterised in that block ledges (28), the veneer layers of which extend parallel to the plate plane, are fastened at the plate edges extending longitudinal to the veneer layers (10, 11).
- A method of making a table or working plate of one of claims 1 to 4, wherein a plurality of multi-layered blocks (1, 2, 3, 4, ...) are glued together, characterised in that, first, a sandwich plate (12) with an even number of crossing veneers (10, 11) is made, which is then cut to individual blocks (1,2,3,4,...) of a width corresponding to the thickness of the plate (20) to be made, and that, thereafter, said blocks are laid flatly and glued together at their longitudinal sides such that two respective laterally adjacent blocks abut each other by two faces to which the fibers extend substantially parallel, the fibers of the one face crossing the fibers of the other face, and that the veneer layers of two blocks sequentially arranged in the longitudinal direction extend in the same direction, respectively.
- The method of claim 5, characterised in that said sandwich plate (12) is divided into rectangular units (I, II, III, IV) by cuts extending transversal to the plate plane, that at least several units are rearranged in said plate plane, that said units (A,B,C,D) are then glued together in the same plane to form an auxiliary plate and that said auxiliary plate (22) is cut transversal to the glued cut edges (21) to form said blocks (1,2,3,4,...).
- The method of claim 6, characterised in that one unit (A) is made shorter than the remaining units (B,C,D), that each block (1,2,3,4,...) contains an element formed by said shorter unit (A) and that said shorter elements (A1, A2, A3, A4) of adjacent blocks are arranged at opposite ends.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8686118009T DE3680920D1 (en) | 1986-12-23 | 1986-12-23 | TABLE OR WORKTOP AND METHOD FOR THEIR PRODUCTION. |
EP86118009A EP0272342B1 (en) | 1986-12-23 | 1986-12-23 | Table top or working surface and method for its production |
AT86118009T ATE66176T1 (en) | 1986-12-23 | 1986-12-23 | TABLE OR WORKTOP AND PROCESS FOR THEIR MANUFACTURE. |
DK633386A DK633386A (en) | 1986-12-23 | 1986-12-30 | TABLE OR WORKBOARD AND PROCEDURE FOR MANUFACTURING THIS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP86118009A EP0272342B1 (en) | 1986-12-23 | 1986-12-23 | Table top or working surface and method for its production |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0272342A1 EP0272342A1 (en) | 1988-06-29 |
EP0272342B1 true EP0272342B1 (en) | 1991-08-14 |
Family
ID=8195669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86118009A Expired - Lifetime EP0272342B1 (en) | 1986-12-23 | 1986-12-23 | Table top or working surface and method for its production |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0272342B1 (en) |
AT (1) | ATE66176T1 (en) |
DE (1) | DE3680920D1 (en) |
DK (1) | DK633386A (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2640196B1 (en) * | 1988-12-14 | 1991-03-08 | Capeilleres Alain | METHOD FOR MANUFACTURING FURNITURE ELEMENTS USING EDGE OF PLATES OF LAMINATE MATERIALS, AND FURNITURE ELEMENT PRODUCED THROUGH THE IMPLEMENTATION OF THIS PROCESS |
AT401747B (en) * | 1994-11-14 | 1996-11-25 | Fendt Hermann | Panel element of solid wood and process for its production |
GB2321617A (en) * | 1997-01-31 | 1998-08-05 | Wilkinson Mark Furniture Ltd | Plywood articles |
ITMI20022384A1 (en) * | 2002-11-11 | 2004-05-12 | Classwood S R L | WOODEN BATHROOM SANITARIES AND PROCEDURE FOR THEIR PRODUCTION. |
DE202004005479U1 (en) * | 2004-02-06 | 2005-06-23 | Moralt Tischlerplatten Gmbh & Co.Kg | Lightweight composite panel used in furnishing, kitchens, land-, sea- or air vehicles, includes outer layers of bonded wooden strips in parallel arrangement |
ITVR20090135A1 (en) * | 2009-09-09 | 2011-03-10 | Ermanno Benetti | ITEM FOR BUILDING USE, FOR CONSTRUCTION OR SIMILAR USE AND METHOD FOR THE PRODUCTION OF SUCH ITEM. |
GB2477530A (en) * | 2010-02-05 | 2011-08-10 | Diyan Rahnev | A seemless worktop with plywood strips extending in a transverse direction over a support panel |
AT510792B1 (en) * | 2010-11-18 | 2012-12-15 | Monte Florian De | METHOD FOR THE PRODUCTION OF SEVERAL WOOD-LAYERED PLATES AND WOOD COMPOSITE PLATE |
CH707947A1 (en) | 2013-04-24 | 2014-10-31 | Timbatec Holzbauingenieure Schweiz Ag | Component, method of connecting timber elements, computer program. |
DE102019125608A1 (en) * | 2019-09-24 | 2021-03-25 | PaTim UG (haftungsbeschränkt) | Process for the production of a wooden construction element and a wooden construction element |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE562274A (en) * | 1956-11-19 | |||
CH422285A (en) * | 1963-02-01 | 1966-10-15 | Morandi Gianni Ing Dr | Friezes, in particular parquet friezes, made of synthetic resin-glued plywood |
US3730797A (en) * | 1970-03-11 | 1973-05-01 | Gutzeitin Laatikkotehdas Ab Oy | Method for manufacturing building boards with chequer-square pattern |
-
1986
- 1986-12-23 EP EP86118009A patent/EP0272342B1/en not_active Expired - Lifetime
- 1986-12-23 AT AT86118009T patent/ATE66176T1/en active
- 1986-12-23 DE DE8686118009T patent/DE3680920D1/en not_active Expired - Fee Related
- 1986-12-30 DK DK633386A patent/DK633386A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
ATE66176T1 (en) | 1991-08-15 |
DE3680920D1 (en) | 1991-09-19 |
DK633386A (en) | 1988-06-24 |
EP0272342A1 (en) | 1988-06-29 |
DK633386D0 (en) | 1986-12-30 |
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