EP2725163B1 - Structural timber for constructing a supporting structure - Google Patents
Structural timber for constructing a supporting structure Download PDFInfo
- Publication number
- EP2725163B1 EP2725163B1 EP20120007326 EP12007326A EP2725163B1 EP 2725163 B1 EP2725163 B1 EP 2725163B1 EP 20120007326 EP20120007326 EP 20120007326 EP 12007326 A EP12007326 A EP 12007326A EP 2725163 B1 EP2725163 B1 EP 2725163B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lumber
- embossing
- recess
- recesses
- longitudinal direction
- 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.)
- Not-in-force
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Classifications
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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
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
- B27M1/003—Mechanical surface treatment
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/12—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D12/00—Non-structural supports for roofing materials, e.g. battens, boards
- E04D12/004—Battens
Definitions
- the invention relates to a Bauroughholz for creating a support structure, wherein the extension of Bauroughholz in the longitudinal direction is substantially greater than in width and in height, wherein at least one side surface of Bauußholzes at least one division of the longitudinal direction generating recess is introduced, the Bauußholz has a substantially rectangular cross-section, and wherein the recess is introduced by an embossing process. Furthermore, the invention relates to a method for creating a longitudinally-generating recess in a building timber and a use of such Bauußholzes.
- Bautrehölzer are understood in the present case, all wood products that are suitable for the creation of any support structures, such as studs or roof structures.
- Bautenholz includes boards, planks, beams, battens, etc.
- Bautenholz all types of wood to understand, for example, whole wood, semi-wood, crosswood and quarter timber.
- Wood is suitable for a variety of reasons as a building material for the construction of buildings, structures and other supporting structures. In particular, the low density and at the same time very high rigidity combined with good processability and durability characterize wood as a building material.
- Bauastahölzer are usually produced in a sawmill by a sawing process in a sawing gate from a tree trunk, wherein after the sawing a selection and sorting takes place. This is followed by further processing, z. B. in the form of drying the treatment.
- Timbers are characterized in particular by the fact that they are dried to a maximum wood moisture of 20%.
- roof tiles are used on building timber in the roof or facade area, among other things or roof tiles attached with hanging lugs, so that the suspension lugs are in surface contact with the oriented in the direction of the roof ridge side surface of Bauschnittholzes.
- the roofing tiles as usually ceramic or mineral materials subjected to a constant change of material moisture.
- the wood takes over the moisture from the material of the roofing panel by the material contact with the roofing panel and holds this moisture bound in the wooden cell structure.
- FR 2 778 192 discloses a roofing with rafters on which transverse slats are arranged. Roof tiles are attached to the slats. The roof panels are fastened by means of elastic metal hooks on the slats, wherein the metal hooks engage on the one hand in an opening provided on the surface of the slat notch and in a hole arranged below the notch.
- JP 2002-364129 discloses a roofing with rafters on which a waterproof intermediate layer is arranged. On the intermediate layer transverse slats are provided. The transverse slats have recesses at regular intervals, whose length corresponds approximately to the distance of the rafters.
- EP 0 242 788 A2 discloses a method and apparatus for gluing or bonding solid wood edge trim. In order to increase the adhesive surface, embossments are introduced into the edge strip, which are provided for the material-locking attachment to a chipboard, which are subsequently filled with an adhesive.
- DE 20 2006 009 589 U1 discloses building timber according to the preamble of claim 1 and an apparatus for shaping wood surfaces.
- the device comprises two cylindrical pressure rollers, of which at least one has in its surface at least one raised relief structure with which the surface of a wooden component guided between the pressure rollers can be changed.
- Application of the disclosed device is the decoration or finishing of wood surfaces.
- CA 2 369 630 A1 discloses building material characterized by length markings. The markings are applied to the surface.
- the object of the invention is to provide a building timber and a method for its production, which reduces the risk of damage by moisture in a contact area.
- the above object is achieved in a generic Bauismeholz in that the recess is introduced in an edge region of a first side surface, so that the recess also extends at least partially in a second side surface.
- the Bauauerholz is for example in the form of a screed, a board, a squared lumber or a lath, etc.
- the longitudinal extent is generically much greater than the width and / or the height of the Bauußholzes. While the height and width is in the range of several centimeters, the length is in the range of several meters.
- the standard dimensions of a roof batten are at a length between 4 m and 6 m approximately a height between 24 mm and 40 mm and a width between 48 mm and 60 mm. It has proven advantageous if the longitudinal extent corresponds to a multiple of the height or the width, advantageous at least ten times the width or height.
- the depression is introduced into a side surface corresponding to its length of the longest extension direction.
- At least one surface of the Bauismeholzes at least one depression is introduced, which produces a visible, so visible to the naked eye, division of the longitudinal direction of the Bauußholzes.
- the surface is a side surface which is formed in the direction perpendicular to the cross-section.
- a division can be any geometric subdivision of the longitudinal extent of Bautreholzes.
- the entire longitudinal extension of the building timber is recognizable by the at least one recess in a plurality of sections recognizable.
- the depression is arranged in an edge region of the surface. It is also advantageous if the depression or the depressions extend only over a partial region of the surface, for example, up to half the width of the surface.
- the recess is formed on a surface not visible in the assembled state.
- the recess extends from the at least one surface of the building timber into the material and is introduced by an embossing process, thus impressed by means of pressure.
- the indentation extends, for example, in a wave or zigzag shape over the entire longitudinal extension of the building timber, with each spike or wave crest or wave trough marking a segment or a section of the subdivision of the construction timber in the longitudinal direction.
- the sections Preferably, the sections have a uniform spacing.
- the recess has such a shape or is introduced such that the Bauismeholz does not lose by the depression of static capacity, in particular, a sharp impression, which forms a predetermined breaking point to be avoided.
- the recess thus has no notch effect within the Bauußholzes.
- the reason of the depression is just formed.
- a Bautenholz according to the present invention has the advantage that, for example, when used with an applied roofing plate in the contact area between the roofing tile and Bauismeholz through the depression, the contact area between Bautenholz and roofing plate is reduced. This reduction in contact area reduces the exchange of moisture, reducing the risk of damage. Furthermore, in particular depending on the arrangement of the depression, there is also the possibility of air circulation in the contact region, as a result of which moisture can escape. This air circulation helps to reduce the risk of damage to both the building timber and the roofing panel due to permanent moisture. It is therefore particularly advantageous if the building timber is designed as a roof batten.
- the depression which generates a division of the longitudinal extension of the building timber, also has the advantage that a measure of length can be read from the depression, which in particular simplifies the preparation of supporting structures with such a construction timber, as can be dispensed with a measuring tool, for example by Sections are counted.
- the divisions - sections - preferably have a distance of 10 mm.
- a plurality of recesses are introduced, which produce a division of the longitudinal direction of the Bauußholzes.
- the recesses are recurrently distributed at regular or irregular intervals over the entire longitudinal extent of Bautreholzes, whereby the division of the longitudinal direction is carried out by the wells.
- the depressions lead to a visible division of the longitudinal direction.
- the depressions preferably have an essentially geometric basic shape, in particular the depressions are, for example, round or polygonal. Rectangles, triangles and semicircles have proven to be particularly advantageous.
- a recurring pattern is generated in at least one surface of Bauauerholzes, for example by each well whose number is a certain multiple of any Number corresponds, deviating from the other wells is formed. For example, every tenth recess is larger, deeper or has a different shape than the intermediate recesses. In a Bauauerholz with a length of 5 m about 500 wells are introduced.
- the depressions are formed as letters, so that with the wells a lettering can be displayed, but at the same time the function of reducing a contact surface or the rear ventilation is guaranteed.
- the recesses are - if possible with respect to their geometric shape orientable - advantageously arranged with respect to the longitudinal extent of the support device at an angle, in particular at an angle of 90 ° to the longitudinal extent of the building timber.
- the at least one surface of the Bauauerholz is at least partially provided by the wells with a profiling, in particular, for example, a wave profile or a serrated profile is realized, the waves or prongs are oriented transversely to the longitudinal direction of the Bauußholzes.
- the contact surface is also reduced by a plurality of recesses in at least one surface of the construction timber and, if necessary, permits air circulation in the contact area with a roofing plate, so that moisture in the contact area can be reduced.
- Each depression preferably has a characteristic contributing to the division of the longitudinal direction, for example a point, a vertex or a point of discontinuity, at which the subdivision of the sections can be clearly recognized. The sections can then serve as a guide.
- a building timber has proven to be particularly advantageous for use as a roof batten in a roof construction in that the building timber has a substantially rectangular cross-section, and that the recesses are at least partially introduced into at least one side surface, in particular at least partially introduced into at least two side surfaces, preferably introduced in an edge region of a side surface are.
- the building timber for example, has a cross section in which the width and the height are identical, but alternatively it is also provided that the width and the height are different.
- the recesses are at least partially introduced into at least one side surface of the Bauismeholzes, so that this side surface in the assembled state, for example, can serve as a contact surface for the hanging nose of a roofing plate.
- the recess is at least partially introduced into two side surfaces, namely in the areas in which the side surfaces adjacent to each other, so that the recess of the one side surface merges with the other side surface.
- the recesses extend continuously from one side surface to the other side surface.
- the depressions in the two side surfaces are arranged offset from one another.
- the recess has at least locally a different depth. This includes, on the one hand, that locally different depths are present in the area of a single depression, but also that different depressions of a plurality of depressions have different depths. It is provided, for example, that the depth changes continuously in the region of a depression, but also provided that the depth changes discontinuously, for. As paragraph or level,
- the recess has a depth between 0.05 mm and 4 mm, as in particular at such depths a sufficient distance is present in a contact area and, for example, a sufficient air circulation can be ensured. Furthermore, such a depression is visible to the naked eye in the surface of Bauismeholzes. In order to prevent a notch effect being realized by the depressions, it is provided that the depth of the depression corresponds to approximately 10% of the dimension of the construction timber in the direction of the depression. Thus, for example, if the building timber has a height of 50 mm, the Depth of the recess maximum 5 mm.
- this width is between 0.1 mm and 10 mm, in particular between 0.5 mm and 1.5 mm.
- Bautreholzes are then arranged over the entire longitudinal extent behind one another a plurality of depressions, each having one of the aforementioned widths.
- the distance between two wells in particular the average distance between two wells, between 2 mm and 30 mm, in particular that the Distance between 5 mm and 10 mm, it is preferred that the distance between two recesses is 10 mm, so that the distance of the recesses serves as a measure.
- the mean distance of the depressions is meant the distance that results between the respective centers of two depressions.
- the average distance is also the distance that results between two characteristic features of a depression, for example, between two teeth tips.
- this distance between two characteristic features exactly 10 mm, so that the distance between two wells, so the distance between two characteristic features of two wells, serves as a measure. Consequently, if the depressions are distributed uniformly over the entire longitudinal extent of the building timber, in particular every rejoinin length with a smallest unit of 10 mm can be read directly on the Bauismeholz and perform a cut.
- each well having a number corresponding to a particular plurality of a number is deviating in shape, for example, every tenth well deviating from the other wells. As a result, for example, even distances of 10 cm are immediately visible. This can advantageously take place in that each tenth recess is made larger with respect to its surface or has a different shape.
- the recess is at least partially provided with a label, in particular provided with a length measurement indicating .
- the marking of the recess or depressions for example be done by the recess itself is changed, namely, for example, is dyed or in that next to the corresponding recess immediately a label, such as a number or a symbol is arranged.
- a marking indicating a length dimension is particularly preferred, so that the building timber is continuously dimensioned over the entire longitudinal extent.
- such a marking is provided only on selected depressions, for example, arranged on every tenth recess a length measure that indicates the absolute length of the building timber from the beginning to the end.
- every tenth recess is thermally treated, so that the surface of the recess is burned, for example, so that by the color change every tenth mark stands out from the other markers immediately recognizable.
- the thermal treatment of the depression takes place, for example, via a resistance-heated embossing agent.
- the marking is applied thermally or with paint on the at least one surface.
- the marking that is, for example, a number indicating the length, is either thermally introduced into the surface of the building timber by, for example, partially burning the surface, so that the carbon layer represents the markings as recognizable color change.
- the marking is applied with paint, for example in the form of a stamp, which is automatically applied to the appropriate location.
- a construction timber according to the invention can be produced in a simple way in accordance with a method for producing a recess which produces a division in the longitudinal direction in a construction timber, in the following method steps comprising: 1) conveying the building timber on a conveyor in a conveying direction 2) continuously creating at least one longitudinal division recess in the building timber by an embossing means during conveying, the embossing means being a stamping chain with embossing teeth guided on a rotating guide wheel.
- the Bauismeholz is therefore required on a conveyor in a conveying direction, so that it preferably moves in the longitudinal direction.
- the Bauroughholz is promoted in the direction of the embossing means, so that the embossing medium, while the Bauußholz is conveyed past the embossing means, continuously generates at least one a division of the longitudinal direction generating recess in the Bauroughholz.
- depressions distributed continuously over the entire length of the construction timber are introduced into at least one surface of the construction timber - a plurality of depressions.
- the embossing agent works continuously, so that the promotion of Bauismeholzes for the embossing process must not be interrupted.
- the embossing pressure required for embossing is established between the embossing means and the conveyor.
- a rotating embossing wheel with embossing teeth - not according to the invention - or an embossing chain guided on a rotating guide wheel with embossing teeth has been found.
- the rotating embossing wheel with embossing teeth for example, has an outer peripheral speed which corresponds to the conveying speed of the building timber on the conveyor.
- the embossing teeth of the embossing wheel have a distance corresponding to the sacred spregenden distance of the recesses in the Bauismeholz.
- embossing chain with embossing teeth in which, for example, an embossing tooth is arranged on each chain link.
- the distance between the embossing teeth on the chain links thus later corresponds to the distance of the imprints in Bauismeholz.
- the embossing teeth are, for example, completely identical or alternatively, for example, every tenth embossing tooth on a special shape, so that every tenth recess also has a special shape.
- a chain link the embossing chain or on the embossing wheel at least one stamp is provided can be marked with the predetermined recesses color or thermal.
- the length of the chain corresponds to the length of the Bauauerholzes or the scope of the stamping wheel the length of Bauroughholzes.
- the recess can be produced in a building timber by forming an embossing gap between the conveying means and the embossing means, in particular by guiding the building timber into the embossing gap by a guiding means.
- the embossing gap between conveying means and embossing means is designed in such a way that the embossing teeth of the embossing means leave a depression or several depressions in the surface of the building cutting timber, while the building cutting timber runs through the embossing gap.
- the Bauauerholz is preferably guided by a lateral guide means in the embossing gap, so that by the guide means an exact positioning of the wells, for example in an edge region of a side surface , is fixed.
- a marking with the embossing agent takes place at the same time as the continuous creation of a depression generating a division in the longitudinal direction, in particular a thermal or colored marking.
- the embossing wheel or the embossing chain preferably has stamping areas which are wetted with a paint, the paint subsequently being applied to the surface of the building cutting timber during the embossing process simultaneously with the introduction of a depression.
- the stamp depicts letters or numbers, for example.
- a thermal marking is provided which, for example, takes place in that the embossing teeth of a stamping wheel or the embossing teeth of a stamping chain are heated, so that they leave a thermal marking in the building cutting wood.
- Bauten designed as a roof covering bearing roof batten in a roof construction.
- a use of a previously described Bautenholzes designed as a roof covering bearing roof batten in a roof construction.
- Fig. 1 shows a Bauauerholz 1 for creating a support structure, the extension of the Bauauerholzes 1 in the longitudinal direction is substantially greater than in the width and in height.
- the Bauauerholz 1 has in a surface on a plurality of recesses 2, which generate a division of the longitudinal direction of the Bauußholzes 1 into regular sections.
- the depressions 2 are in accordance with Fig. 1 placed above the first side surface 3 of Bautenholzes 1 and have an average distance of 10 mm.
- the building timber 1 has a substantially rectangular cross-section.
- the recesses 2 are arranged in an edge region of the first side surface 3, so that the recesses 2 also extend at least partially in the second side surface 3 '.
- Fig. 2 shows an embodiment of a Bauauerholzes 1, at the moment of introducing the recesses 2, in which the recesses 2 are introduced both in the first side surface 3 and in the second side surface 3 '.
- a marking 4 is additionally provided on every fourth recess 2, which contains information about a length dimension of the building timber 1.
- Fig. 1 shows that the recesses 2 are introduced into the Bauauerholz 1 with a method in which the Bauauerholz 1 on a - not conveyed - funding is conveyed in a conveying direction, wherein a continuous creation of a division of the longitudinal direction generating depressions 2 in the Bauauerholz. 1 during promotion by means of an imprint.
- the embossing means is formed in this embodiment as embossing wheel 5 with embossing teeth 6.
- the stamping wheel 5 is fixedly mounted on a central axis 7, so that its position is not changeable.
- the embossing teeth 6 of the embossing wheel 5 are pressed into the side surface 3 of the Bauußholzes 1, so that the recesses 2 are impressed.
- the stamping wheel 5 is mounted in a rotating manner.
- the division of the embossing teeth 6 on the embossing wheel 5 corresponds to the desired spacing of the depressions 2 in the building timber 1.
- Fig. 2 shows an embodiment in which in the context of the method for creating at least one longitudinal division generating recess 2 in a Bauauerholz 1 two embossing wheels 5, 5 'are used, which are mounted on separate axes 7, 7'.
- the first embossing wheel 5 generates the portion of a recess 2 in the first side surface 3.
- the second embossing wheel 5 'generates the second part of a recess 2 in the side surface 3' of the building timber 1,
- the embossing wheel 5 also has spaced apart from the embossing teeth 6 Stamp 8 on, regularly with color are wetted and leave a mark 4 on the Bauroughholz 1 next to the wells 2 at certain intervals.
- Fig. 3 shows an embodiment of a Bauauerholzes 1, in which a plurality of longitudinally dividing the recesses 2 are introduced.
- Each tenth recess 2 is formed as a slightly longer recess 2 'and additionally provided with a label 4, which represents the length measure.
- Fig. 4a to 4g show various embodiments of wells 2 in Bauismehölzem.
- Fig. 4a shows an embodiment of a building timber with recesses 2, which have a polygonal shape, which opens in the direction of the edge of the side surface 3.
- the depressions 2 are arranged at a distance from one another.
- Fig. 4b shows an embodiment of recesses 2 in a construction timber 1, which are also arranged in an edge region of the side surface 3 and have a triangular basic shape.
- the tips of the triangles represent the characterizing features of the recesses 2.
- the tips each have an identical distance of 10 mm to each other, so that the tips of the triangular depressions 2 serve as a measure of length.
- Fig. 4c shows an embodiment of a building timber 1 with semi-circular recesses 2 in an edge region of the side surface.
- Fig. 4d shows an embodiment of a building timber 1 with a single, continuous recess 2, which has a serrated shape.
- the tips of the teeth are identically spaced from each other, so that these tips also represent a characteristic feature, on the basis of which a measure of length is read.
- Fig. 4e shows an embodiment of a building timber 1 with rectangular recesses 2 in the side surface.
- Fig. 4f shows an embodiment of a Bauauerholzes 1 with substantially oval wells 2, which are spaced from each other in the side surface 3 of the building timber 1 are arranged.
- Fig. 4g shows an embodiment of a Bauauerholzes 1 with line-shaped recesses 2, which at an angle of 90 ° to the longitudinal extent Bautenholzes 1 are arranged in the side surface 3 with identical distances from each other.
- Fig. 5 shows a stamping wheel 5 with embossing teeth 6 at the moment of the continuous creation of the recesses 2 within the Bauußholzes 1.
- the recesses 2 are impressed with the embossing teeth 6 in the side surface 3 of the Bauußholzes 1.
- Fig. 6 shows a method according to claim 10, wherein the recesses 2 are introduced by means of a guided on a guide wheel 9 embossing chain 10 in the side surface 3 of the Bauußholzes 1 during the implementation of the method.
- the embossing chain 10 is further guided and tensioned by further guide wheels 9 '.
- the embossing chain 10 also has embossing teeth 11 which impress the depressions 2 in the surface 3 of the Bauismeholzes 1.
- the embossing chain 10 consists of chain links 12 which are connected to Achsmale 13 with each other. At least one embossing tooth 11 is arranged on each chain link 12.
- the embossing chain 10 has a length corresponding to the total length of the building timber 1, so that individual characteristics can be impressed independently of each other over the entire length of Bauismeholzes 1, for example, a continuous dimensioning over the entire length.
- Fig. 7 shows an embodiment of a Bauimposingholzes 1 on a rafter 14 a - not shown in detail - roof construction.
- the Bautenholz 1 is mounted on the rafters 14, so that the wells 2 are oriented in the direction of the ridge.
- a roofing plate 15 is arranged with its hanging nose 16.
- the depressions 2 are arranged such that an air circulation at the contact surface between hanging nose 16 and the Bautenholz 1 through the wells 2 is possible, so that no moisture can collect at this point.
- Fig. 8 shows a portion of a building timber 1 with recesses 2 in a side surface 3, wherein each tenth recess 2 'is formed larger.
- the depressions 2 are embossed.
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Description
Die Erfindung betrifft ein Bauschnittholz zur Erstellung einer Tragkonstruktion, wobei die Erstreckung des Bauschnittholzes in Längsrichtung wesentlich größer als in der Breite und in der Höhe ist, wobei in mindestens eine Seitenfläche des Bauschnittholzes mindestens eine eine Einteilung der Längsrichtung erzeugende Vertiefung eingebracht ist, wobei das Bauschnittholz einen im Wesentlichen rechteckigen Querschnitt aufweist, und wobei die Vertiefung durch einen Prägevorgang eingebracht ist. Ferner betrifft die Erfindung ein Verfahren zur Erstellung einer eine Einteilung in Längsrichtung erzeugenden Vertiefung in einem Bauschnittholz und eine Verwendung eines derartigen Bauschnittholzes.The invention relates to a Bauschnittholz for creating a support structure, wherein the extension of Bauschnittholz in the longitudinal direction is substantially greater than in width and in height, wherein at least one side surface of Bauschnittholzes at least one division of the longitudinal direction generating recess is introduced, the Bauschnittholz has a substantially rectangular cross-section, and wherein the recess is introduced by an embossing process. Furthermore, the invention relates to a method for creating a longitudinally-generating recess in a building timber and a use of such Bauschnittholzes.
Unter dem Begriff Bauschnitthölzer sind vorliegend sämtliche Holzerzeugnisse zu verstehen, die zur Erstellung von beliebigen Tragkonstruktionen, beispielsweise Ständerwerken oder Dachkonstruktionen geeignet sind. Bauschnittholz umfasst Bretter, Bohlen, Balken, Latten etc. Im vorliegenden Fall ist unter Bauschnittholz sämtliche Holzarten zu verstehen, beispielsweise Ganzholz, Halbholz, Kreuzholz und Viertelholz. Holz ist aus einer Vielzahl von Gründen als Baumaterial zur Errichtung von Gebäuden, Bauwerken und anderen Tragkonstruktionen geeignet. Insbesondere die geringe Dichte und zugleich sehr hohe Steifigkeit bei gleichzeitig guter Verarbeitbarkeit und Beständigkeit zeichnen Holz als Baumaterial aus.The term Bauschnitthölzer are understood in the present case, all wood products that are suitable for the creation of any support structures, such as studs or roof structures. Bauschnittholz includes boards, planks, beams, battens, etc. In the present case is under Bauschnittholz all types of wood to understand, for example, whole wood, semi-wood, crosswood and quarter timber. Wood is suitable for a variety of reasons as a building material for the construction of buildings, structures and other supporting structures. In particular, the low density and at the same time very high rigidity combined with good processability and durability characterize wood as a building material.
Bauschnitthölzer werden üblicherweise in einem Sägewerk durch einen Sägevorgang in einem Sägegatter aus einem Baumstamm hergestellt, wobei nach dem Sägevorgang eine Auswahl und Sortierung erfolgt. Anschließend folgt eine Weiterverarbeitung, z. B. in Form von Trocknung der Behandlung. Bauhölzer zeichnen sich insbesondere dadurch aus, dass sie auf eine maximale Holzfeuchte von 20 % getrocknet ist.Bauschnitthölzer are usually produced in a sawmill by a sawing process in a sawing gate from a tree trunk, wherein after the sawing a selection and sorting takes place. This is followed by further processing, z. B. in the form of drying the treatment. Timbers are characterized in particular by the fact that they are dried to a maximum wood moisture of 20%.
Insbesondere bei Verwendung von Bauschnittholz zur Erstellung von Tragkonstruktionen im Dach- oder Fassadenbereich werden besondere Anforderungen an die Tragfähigkeit und Beständigkeit gestellt. Üblicherweise werden an Bauschnittholz im Dach- oder Fassadenbereich unter anderem Dachziegel oder Dachsteine mit Aufhängenasen befestigt, so dass die Aufhängenasen in flächigem Kontakt mit der in Richtung des Dachfirsts orientierten Seitenfläche des Bauschnittholzes stehen. Im Laufe der Nutzungszeit des Bauschnittholzes mit einem darauf angeordneten Dachziegel werden durch Wettereinflüsse, beispielsweise Regen, Schnee, Luftfeuchtigkeit, sommerliche Hitze sowie winterlicher Frost, die Dacheindeckungsplatten als üblicherweise keramische oder mineralische Werkstoffe einem ständigen Wechsel der Materialfeuchte unterzogen. In den Bereichen, in denen das Bauschnittholz mit der Dacheindeckungsplatte in Kontakt steht, übernimmt das Holz durch den Materialkontakt zur Dacheindeckungsplatte die Feuchte aus dem Material der Dacheindeckungsplatte und hält diese Feuchtigkeit in der holzeigenen Zellstruktur gebunden.Especially when using Bauschnittholz to create supporting structures in the roof or facade area special demands on the carrying capacity and durability are provided. Usually, roof tiles are used on building timber in the roof or facade area, among other things or roof tiles attached with hanging lugs, so that the suspension lugs are in surface contact with the oriented in the direction of the roof ridge side surface of Bauschnittholzes. During the period of use of Bauschnittholzes with a roof tile arranged thereon by weather conditions, such as rain, snow, humidity, summer heat and winter frost, the roofing tiles as usually ceramic or mineral materials subjected to a constant change of material moisture. In the areas in which the building timber is in contact with the roofing panel, the wood takes over the moisture from the material of the roofing panel by the material contact with the roofing panel and holds this moisture bound in the wooden cell structure.
Im Laufe der Zeit kommt es - bedingt durch den höheren Feuchteanteil - durch physikalische und chemische Vorgänge in diesem Kontaktbereich zu Veränderungen an dem Material der Dacheindeckungsplatte. Im Bereich der Aufhängenasen und im den weiteren Kontaktbereichen können Ausblühungen aus Kalk-, Zement- und/oder Gipsverbindungen auftreten, die die Qualität und die Haltbarkeit der Dacheindeckungsplatten stark reduzieren. Ferner wird auch das Bauschnittholz als biologisches Material durch die Feuchtigkeit beansprucht, wird nämlich durch das Vorhandensein permanenter Feuchtigkeit besonders anfällig für Pilz- Schimmel- oder Schwammerkrankungen.In the course of time - due to the higher moisture content - physical and chemical processes in this contact area lead to changes in the material of the roofing tile. In the area of the hanging noses and in the other contact areas efflorescence of lime, cement and / or gypsum compounds can occur which greatly reduce the quality and durability of the roofing tiles. Furthermore, the Bauschnittholz is claimed as a biological material by the moisture, namely, by the presence of permanent moisture particularly susceptible to fungal mold or disease.
Ausgehend von dem vorgenannten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, ein Bauschnittholz und ein Verfahren zu dessen Herstellung anzugeben, das das Risiko einer Beschädigung durch Feuchtigkeit in einem Kontaktbereich reduziert.Based on the aforementioned prior art, the object of the invention is to provide a building timber and a method for its production, which reduces the risk of damage by moisture in a contact area.
Die vorgenannte Aufgabe ist bei einem gattungsgemäßen Bauschnittholz dadurch gelöst, dass die Vertiefung in einem Randbereich einer ersten Seitenfläche eingebracht ist, so dass die Vertiefung sich auch zumindest teilweise in einer zweiten Seitenfläche erstreckt. Das Bauschnittholz liegt beispielsweise in Form einer Bohle, eines Brettes, eines Kantholzes oder einer Latte usw. vor. Die Längserstreckung ist dabei gattungsgemäß wesentlich größer als die Breite und/oder die Höhe des Bauschnittholzes. Während die Höhe und Breite im Bereich von mehreren Zentimetern liegt, ist die Länge im Bereich von mehreren Metern. Die Standardabmessungen einer Dachlatte sind bei einer Länge zwischen 4 m und 6 m etwa eine Höhe zwischen 24 mm und 40 mm sowie einer Breite zwischen 48 mm und 60 mm. Als vorteilhaft hat sich herausgestellt, wenn die Längserstreckung einem Vielfachen der Höhe oder der Breite entspricht, vorteilhaft mindestens dem zehnfachen der Breite oder der Höhe entspricht. Die Vertiefung ist in eine bezüglich ihrer Länge der längsten Erstreckungsrichtung entsprechende Seitenfläche eingebracht.The above object is achieved in a generic Bauschnittholz in that the recess is introduced in an edge region of a first side surface, so that the recess also extends at least partially in a second side surface. The Bauschnittholz is for example in the form of a screed, a board, a squared lumber or a lath, etc. The longitudinal extent is generically much greater than the width and / or the height of the Bauschnittholzes. While the height and width is in the range of several centimeters, the length is in the range of several meters. The standard dimensions of a roof batten are at a length between 4 m and 6 m approximately a height between 24 mm and 40 mm and a width between 48 mm and 60 mm. It has proven advantageous if the longitudinal extent corresponds to a multiple of the height or the width, advantageous at least ten times the width or height. The depression is introduced into a side surface corresponding to its length of the longest extension direction.
In mindestens einer Oberfläche des Bauschnittholzes ist mindestens eine Vertiefung eingebracht, die eine sichtbare, also mit bloßem Auge erkennbare, Einteilung der Längsrichtung des Bauschnittholzes erzeugt. Die Oberfläche ist eine Seitenfläche, die in senkrechter Erstreckungsrichtung zum Querschnitt ausgebildet ist. Eine Einteilung kann dabei jede beliebige geometrische Unterteilung der Längserstreckung des Bauschnittholzes sein. Die gesamte Längserstreckung des Bauschnittholzes ist durch die mindestens eine Vertiefung in eine Mehrzahl von Abschnitten erkennbar gegliedert. Die Vertiefung ist in einem Randbereich der Oberfläche angeordnet. Vorteilhaft ist ferner, wenn sich die Vertiefung bzw. die Vertiefungen nur auf einem Teilbereich der Oberfläche erstrecken, beispielweise bis zur Hälfte der Breite der Oberfläche. Vorzugsweise ist die Vertiefung auf einer im Montagezustand nicht sichtbaren Oberfläche ausgebildet.In at least one surface of the Bauschnittholzes at least one depression is introduced, which produces a visible, so visible to the naked eye, division of the longitudinal direction of the Bauschnittholzes. The surface is a side surface which is formed in the direction perpendicular to the cross-section. A division can be any geometric subdivision of the longitudinal extent of Bauschnittholzes. The entire longitudinal extension of the building timber is recognizable by the at least one recess in a plurality of sections recognizable. The depression is arranged in an edge region of the surface. It is also advantageous if the depression or the depressions extend only over a partial region of the surface, for example, up to half the width of the surface. Preferably, the recess is formed on a surface not visible in the assembled state.
Die Vertiefung erstreckt sich aus der mindestens einen Oberfläche des Bauschnittholzes in das Material hinein und ist durch einen Prägevorgang eingebracht, folglich mittels Druck eingeprägt. Die Vertiefung erstreckt sich beispielsweise wellen- oder zickzackförmig über die gesamte Längserstreckung des Bauschnittholzes, wobei jeder Zacken bzw. jeder Wellenberg bzw. jedes Wellental ein Segment bzw. einen Abschnitt der Einteilung des Bauschnittholzes in Längsrichtung kennzeichnet. Vorzugsweise weisen die Abschnitte einen gleichmäßigen Abstand auf. Von besonderer Bedeutung ist, dass die Vertiefung eine derartige Form aufweist bzw. derart eingebracht ist, dass das Bauschnittholz durch die Vertiefung nicht an statischer Tragfähigkeit einbüßt, wobei insbesondere eine scharfe Einprägung, die eine Sollbruchstelle bildet, vermieden werden soll. Die Vertiefung hat somit keine Kerbwirkung innerhalb des Bauschnittholzes. Vorteilhaft ist dazu der Grund der Vertiefung eben ausgebildet.The recess extends from the at least one surface of the building timber into the material and is introduced by an embossing process, thus impressed by means of pressure. The indentation extends, for example, in a wave or zigzag shape over the entire longitudinal extension of the building timber, with each spike or wave crest or wave trough marking a segment or a section of the subdivision of the construction timber in the longitudinal direction. Preferably, the sections have a uniform spacing. Of particular importance is that the recess has such a shape or is introduced such that the Bauschnittholz does not lose by the depression of static capacity, in particular, a sharp impression, which forms a predetermined breaking point to be avoided. The recess thus has no notch effect within the Bauschnittholzes. Advantageously, the reason of the depression is just formed.
Ein Bauschnittholz gemäß der vorliegenden Erfindung weist den Vorteil auf, dass beispielsweise bei Verwendung mit einer aufgelegten Dacheindeckungsplatte im Kontaktbereich zwischen Dacheindeckungsplatte und Bauschnittholz durch die Vertiefung die Kontaktfläche zwischen Bauschnittholz und Dacheindeckungsplatte reduziert wird. Durch diese Reduzierung der Kontaktfläche wird der Austausch von Feuchtigkeit reduziert, wodurch das Risiko eine Beschädigung reduziert wird. Ferner besteht, insbesondere in Abhängigkeit der Anordnung der Vertiefung, ferner die Möglichkeit einer Luftzirkulation im Kontaktbereich, wodurch Feuchtigkeit entweichen kann. Diese Luftzirkulation unterstützt die Verringerung des Risikos einer Beschädigung sowohl des Bauschnittholzes als auch der Dacheindeckungsplatte durch dauerhaft vorhandene Feuchtigkeit. Ganz besonders vorteilhaft ist deshalb, wenn das Bauschnittholz als Dachlatte ausgebildet ist.A Bauschnittholz according to the present invention has the advantage that, for example, when used with an applied roofing plate in the contact area between the roofing tile and Bauschnittholz through the depression, the contact area between Bauschnittholz and roofing plate is reduced. This reduction in contact area reduces the exchange of moisture, reducing the risk of damage. Furthermore, in particular depending on the arrangement of the depression, there is also the possibility of air circulation in the contact region, as a result of which moisture can escape. This air circulation helps to reduce the risk of damage to both the building timber and the roofing panel due to permanent moisture. It is therefore particularly advantageous if the building timber is designed as a roof batten.
Die Vertiefung, die eine Einteilung der Längserstreckung des Bauschnittholzes erzeugt, weist ferner den Vorteil auf, dass ein Längenmaß anhand der Vertiefung abgelesen werden kann, was insbesondere die Erstellung von Tragkonstruktionen mit einem derartigen Bauschnittholz vereinfacht, da auf ein Messwerkzeug verzichtet werden kann, beispielsweise indem Abschnitte abgezählt werden. Die Einteilungen - Abschnitte - weisen vorzugsweise einen Maßabstand von 10 mm auf.The depression, which generates a division of the longitudinal extension of the building timber, also has the advantage that a measure of length can be read from the depression, which in particular simplifies the preparation of supporting structures with such a construction timber, as can be dispensed with a measuring tool, for example by Sections are counted. The divisions - sections - preferably have a distance of 10 mm.
Gemäß einer ersten Ausgestaltung des Bauschnittsholzes ist vorgesehen, dass eine Mehrzahl von Vertiefungen eingebracht sind, die eine Einteilung der Längsrichtung des Bauschnittholzes erzeugen. Die Vertiefungen sind wiederkehrend in regelmäßigen oder unregelmäßigen Abständen über die gesamte Längserstreckung des Bauschnittholzes verteilt, wodurch die Einteilung der Längsrichtung durch die Vertiefungen erfolgt. Die Vertiefungen führen zu einer sichtbaren Einteilung der Längsrichtung. Vorzugsweise weisen die Vertiefungen in der Draufsicht eine im Wesentlichen geometrische Grundform auf, insbesondere sind die Vertiefungen beispielsweise rund oder polygonal ausgebildet. Als besonders vorteilhaft haben sich dabei Rechtecke, Dreiecke und Halbkreise herausgestellt. Vorzugsweise ist auch vorgesehen, dass mit Vertiefungen unterschiedlicher Form ein wiederkehrendes Muster in mindestens einer Oberfläche des Bauschnittholzes erzeugt wird, beispielsweise indem jede Vertiefung, deren Nummer einem bestimmten Vielfachen einer beliebigen Zahl entspricht, abweichend von den sonstigen Vertiefungen ausgebildet ist. Beispielweise ist jede zehnte Vertiefung größer, tiefer oder weist eine andere Form als die zwischenliegenden Vertiefungen auf. In einem Bauschnittholz mit einer Länge von 5 m sind etwa 500 Vertiefungen eingebracht.According to a first embodiment of the Bauschnittsholzes is provided that a plurality of recesses are introduced, which produce a division of the longitudinal direction of the Bauschnittholzes. The recesses are recurrently distributed at regular or irregular intervals over the entire longitudinal extent of Bauschnittholzes, whereby the division of the longitudinal direction is carried out by the wells. The depressions lead to a visible division of the longitudinal direction. In the plan view, the depressions preferably have an essentially geometric basic shape, in particular the depressions are, for example, round or polygonal. Rectangles, triangles and semicircles have proven to be particularly advantageous. Preferably, it is also provided that with recesses of different shape, a recurring pattern is generated in at least one surface of Bauschnittholzes, for example by each well whose number is a certain multiple of any Number corresponds, deviating from the other wells is formed. For example, every tenth recess is larger, deeper or has a different shape than the intermediate recesses. In a Bauschnittholz with a length of 5 m about 500 wells are introduced.
Ferner ist auch vorgesehen, dass die Vertiefungen als Buchstaben ausgebildet sind, so dass mit den Vertiefungen ein Schriftzug dargestellt werden kann, wobei gleichzeitig jedoch die Funktion der Reduzierung einer Kontaktfläche oder die Hinterlüftung gewährleistet ist.Furthermore, it is also provided that the depressions are formed as letters, so that with the wells a lettering can be displayed, but at the same time the function of reducing a contact surface or the rear ventilation is guaranteed.
Die Vertiefungen sind - sofern im Bezug auf ihre geometrische Form orientierbar - vorteilhaft im Bezug auf die Längserstreckung der Tragvorrichtung in einem Winkel angeordnet, insbesondere in einem Winkel von 90° zur Längserstreckung des Bauschnittholzes angeordnet. Vorzugsweise ist ferner vorgesehen, dass die mindestens eine Oberfläche des Bauschnittholzes zumindest teilweise durch die Vertiefungen mit einer Profilierung versehen ist, insbesondere beispielsweise ein Wellenprofil oder ein Zackenprofil realisiert ist, wobei die Wellen oder die Zacken quer zur Längsrichtung des Bauschnittholzes orientiert sind.The recesses are - if possible with respect to their geometric shape orientable - advantageously arranged with respect to the longitudinal extent of the support device at an angle, in particular at an angle of 90 ° to the longitudinal extent of the building timber. Preferably, it is further provided that the at least one surface of the Bauschnittholz is at least partially provided by the wells with a profiling, in particular, for example, a wave profile or a serrated profile is realized, the waves or prongs are oriented transversely to the longitudinal direction of the Bauschnittholzes.
Ebenso wie durch eine kontinuierliche Vertiefung wird auch durch eine Mehrzahl von Vertiefungen in mindestens einer Oberfläche des Bauschnittholzes die Kontaktfläche reduziert und ggf. eine Luftzirkulation im Kontaktbereich mit einer Dacheindeckungsplatte ermöglicht, so dass Feuchtigkeit im Kontaktbereich reduziert werden kann. Vorzugsweise weist jede Vertiefung eine zur Einteilung der Längsrichtung beitragende Eigenart auf, beispielsweise eine Spitze, einen Scheitelpunkt oder eine Unstetigkeitsstelle, an der die Unterteilung der Abschnitte eindeutig erkennbar ist. Die Abschnitte können dann als Maßhilfe dienen.As well as by means of a continuous depression, the contact surface is also reduced by a plurality of recesses in at least one surface of the construction timber and, if necessary, permits air circulation in the contact area with a roofing plate, so that moisture in the contact area can be reduced. Each depression preferably has a characteristic contributing to the division of the longitudinal direction, for example a point, a vertex or a point of discontinuity, at which the subdivision of the sections can be clearly recognized. The sections can then serve as a guide.
Ein Bauschnittholz hat sich als besonders vorteilhaft zur Verwendung als Dachlatte in einer Dachkonstruktion dadurch erwiesen, dass das Bauschnittholz einen im Wesentlichen rechteckigen Querschnitt aufweist, und dass die Vertiefungen zumindest teilweise in mindestens eine Seitenfläche eingebracht sind, insbesondere zumindest teilweise in mindestens zwei Seitenflächen eingebracht sind, bevorzugt in einem Randbereich einer Seitenfläche eingebracht sind. Das Bauschnittholz weist beispielsweise einen Querschnitt auf, bei dem die Breite und die Höhe identisch sind, alternativ ist jedoch auch vorgesehen, dass die Breite und die Höhe unterschiedlich sind. Die Vertiefungen sind zumindest teilweise in mindestens eine Seitenfläche des Bauschnittholzes eingebracht, so dass diese Seitenfläche im Montagezustand beispielsweise als Kontaktfläche für die Aufhängenase einer Dacheindeckungsplatte dienen kann.A building timber has proven to be particularly advantageous for use as a roof batten in a roof construction in that the building timber has a substantially rectangular cross-section, and that the recesses are at least partially introduced into at least one side surface, in particular at least partially introduced into at least two side surfaces, preferably introduced in an edge region of a side surface are. The building timber, for example, has a cross section in which the width and the height are identical, but alternatively it is also provided that the width and the height are different. The recesses are at least partially introduced into at least one side surface of the Bauschnittholzes, so that this side surface in the assembled state, for example, can serve as a contact surface for the hanging nose of a roofing plate.
Da eine Dacheindeckungsplatte neben der Kontaktfläche mit der Aufhängenase häufig auch eine weitere Kontaktfläche mit dem Bauschnittholz aufweist, ist vorgesehen, dass die Vertiefung zumindest teilweise in zwei Seitenflächen eingebracht ist, nämlich in den Bereichen in denen die Seitenflächen aneinander angrenzen, so dass die Vertiefung von der einen Seitenfläche auf die andere Seitenfläche übergeht. Die Vertiefungen erstrecken sich durchgängig von einer Seitenfläche auf die andere Seitenfläche. Ferner ist aber auch vorgesehen, dass die Vertiefungen in den beiden Seitenflächen versetzt zueinander angeordnet sind.Since a roofing plate next to the contact surface with the suspension nose often also has a further contact surface with the Bauschnittholz, it is provided that the recess is at least partially introduced into two side surfaces, namely in the areas in which the side surfaces adjacent to each other, so that the recess of the one side surface merges with the other side surface. The recesses extend continuously from one side surface to the other side surface. Furthermore, it is also provided that the depressions in the two side surfaces are arranged offset from one another.
Als vorteilhaft hat sich gemäß einer weiteren Ausgestaltung aus herausgestellt, wenn vorgesehen ist, dass die Vertiefung zumindest lokal eine unterschiedliche Tiefe aufweist. Dies umfasst einerseits, dass im Bereich einer einzigen Vertiefung lokal unterschiedliche Tiefen vorliegen aber auch, dass unterschiedliche Vertiefungen einer Mehrzahl von Vertiefungen unterschiedliche Tiefen aufweisen. Dabei ist beispielsweise vorgesehen, dass sich die Tiefe kontinuierlich im Bereich einer Vertiefung verändert, jedoch auch vorgesehen, dass sich die Tiefe unstetig ändert, z. B. als Absatz oder Stufe,It has proven to be advantageous according to a further embodiment, if it is provided that the recess has at least locally a different depth. This includes, on the one hand, that locally different depths are present in the area of a single depression, but also that different depressions of a plurality of depressions have different depths. It is provided, for example, that the depth changes continuously in the region of a depression, but also provided that the depth changes discontinuously, for. As paragraph or level,
Gemäß einer weiteren Ausgestaltung hat sich als besonders vorteilhaft herausgestellt, wenn die Vertiefung eine Tiefe zwischen 0,05 mm und 4 mm aufweist, da insbesondere bei derartigen Tiefen ein ausreichender Abstand in einem Kontaktbereich vorliegt und beispielsweise auch eine ausreichende Luftzirkulation gewährleistet werden kann. Desweiteren ist eine derartige Vertiefung mit bloßem Auge in der Oberfläche des Bauschnittholzes erkennbar. Um zu verhindern, dass durch die Vertiefungen eine Kerbwirkung realisiert wird, ist vorgesehen, dass die Tiefe der Vertiefung etwa 10 % der Dimension des Bauschnittholzes in Richtung der Vertiefung entspricht. Wenn beispielsweise folglich das Bauschnittholz eine Höhe von 50 mm aufweist, beträgt die Tiefe der Vertiefung maximal 5 mm. In Bezug auf die Breite einer Vertiefung parallel zur Längserstreckung des Bauschnittholzes ist gemäß einer weiteren Ausgestaltung bevorzugt, wenn diese Breite zwischen 0,1 mm und 10 mm liegt, insbesondere zwischen 0,5 mm und 1,5 mm liegt. In der Oberfläche des Bauschnittholzes sind dann über die gesamte Längserstreckung hintereinander eine Mehrzahl von Vertiefungen angeordnet, die jeweils eine der vorgenannten Breiten aufweisen.According to a further embodiment has been found to be particularly advantageous if the recess has a depth between 0.05 mm and 4 mm, as in particular at such depths a sufficient distance is present in a contact area and, for example, a sufficient air circulation can be ensured. Furthermore, such a depression is visible to the naked eye in the surface of Bauschnittholzes. In order to prevent a notch effect being realized by the depressions, it is provided that the depth of the depression corresponds to approximately 10% of the dimension of the construction timber in the direction of the depression. Thus, for example, if the building timber has a height of 50 mm, the Depth of the recess maximum 5 mm. With respect to the width of a depression parallel to the longitudinal extent of the building timber, it is preferred according to a further embodiment, if this width is between 0.1 mm and 10 mm, in particular between 0.5 mm and 1.5 mm. In the surface of the Bauschnittholzes are then arranged over the entire longitudinal extent behind one another a plurality of depressions, each having one of the aforementioned widths.
Zur vorteilhaften Gewährung einer ausreichenden Hinterlüftung, insbesondere aber auch zur vorteilhaften Verarbeitung eines Bauschnittholzes, ist gemäß einer nächsten Ausgestaltung vorgesehen, dass der Abstand zwischen zwei Vertiefungen, insbesondere der mittlere Abstand zwischen zwei Vertiefungen, zwischen 2 mm und 30 mm liegt, insbesondere, dass der Abstand zwischen 5 mm und 10 mm liegt, bevorzugt, dass der Abstand zwischen zwei Vertiefungen 10 mm beträgt, so dass der Abstand der Vertiefungen als Maß dient. Mit dem mittleren Abstand der Vertiefungen ist der Abstand gemeint, der sich zwischen den jeweiligen Mittelpunkten von zwei Vertiefungen ergibt. Vorzugsweise ist der mittlere Abstand auch der Abstand, der sich zwischen zwei kennzeichnenden Merkmalen einer Vertiefung, beispielsweise zwischen zwei Zackenspitzen, ergibt.To advantageously provide sufficient ventilation, but in particular for the advantageous processing of a building timber, is provided according to a next embodiment that the distance between two wells, in particular the average distance between two wells, between 2 mm and 30 mm, in particular that the Distance between 5 mm and 10 mm, it is preferred that the distance between two recesses is 10 mm, so that the distance of the recesses serves as a measure. By the mean distance of the depressions is meant the distance that results between the respective centers of two depressions. Preferably, the average distance is also the distance that results between two characteristic features of a depression, for example, between two teeth tips.
Bevorzugt beträgt dieser Abstand zwischen zwei kennzeichnenden Merkmalen genau 10 mm, so dass der Abstand zwischen zwei Vertiefungen, also der Abstand zwischen zwei kennzeichnenden Merkmalen von zwei Vertiefungen, als Maß dient. Wenn folglich die Vertiefungen gleichmäßig über die gesamte Längserstreckung des Bauschnittholzes verteilt sind, lässt sich insbesondere jede Maßlänge mit einer kleinsten Einheit von 10 mm unmittelbar am Bauschnittholz ablesen und ein Zuschnitt durchführen. Vorzugsweise ist jede Vertiefung mit einer Nummer, die einer bestimmten Vielzahl einer Zahl entspricht, abweichend ausgebildet, beispielsweise jede zehnte Vertiefung, abweichend von den sonstigen Vertiefungen ausgebildet. Dadurch sind beispielsweise auch Abstände von 10 cm unmittelbar erkennbar. Dies kann vorteilhaft dadurch erfolgen, dass jede zehnte Vertiefung in Bezug auf ihre Fläche größer ausgebildet ist oder eine andere Form aufweist.Preferably, this distance between two characteristic features exactly 10 mm, so that the distance between two wells, so the distance between two characteristic features of two wells, serves as a measure. Consequently, if the depressions are distributed uniformly over the entire longitudinal extent of the building timber, in particular every Maßlänge length with a smallest unit of 10 mm can be read directly on the Bauschnittholz and perform a cut. Preferably, each well having a number corresponding to a particular plurality of a number is deviating in shape, for example, every tenth well deviating from the other wells. As a result, for example, even distances of 10 cm are immediately visible. This can advantageously take place in that each tenth recess is made larger with respect to its surface or has a different shape.
Um die Vertiefung oder die Vertiefungen als Maß verwenden zu können, ist gemäß einer weiteren Ausgestaltung vorgesehen, dass die Vertiefung zumindest teilweise mit einer Kennzeichnung versehen ist, insbesondere mit einer ein Längenmaß angebenden Kennzeichnung versehen ist.. Die Kennzeichnung der Vertiefung oder der Vertiefungen kann beispielsweise dadurch erfolgen, dass die Vertiefung selbst verändert wird, nämlich beispielsweise eingefärbt wird oder dadurch, dass neben der entsprechenden Vertiefung unmittelbar eine Kennzeichnung, beispielsweise eine Zahl oder ein Symbol angeordnet wird. Besonders bevorzugt ist dabei eine ein Längenmaß angebende Kennzeichnung, so dass das Bauschnittholz über die gesamte Längserstreckung durchgehend bemaßt ist.In order to use the depression or depressions as a measure, is provided according to a further embodiment, that the recess is at least partially provided with a label, in particular provided with a length measurement indicating .. The marking of the recess or depressions, for example be done by the recess itself is changed, namely, for example, is dyed or in that next to the corresponding recess immediately a label, such as a number or a symbol is arranged. Particularly preferred is a marking indicating a length dimension, so that the building timber is continuously dimensioned over the entire longitudinal extent.
Vorzugsweise ist eine derartige Kennzeichnung lediglich an ausgewählten Vertiefungen vorgesehen, beispielsweise an jeder zehnten Vertiefung ein Längenmaß angeordnet, dass die absolute Länge des Bauschnittholzes vom Beginn bis zum Ende angibt. Vorzugsweise ist jede zehnte Vertiefung thermisch behandelt, so dass die Oberfläche der Vertiefung beispielsweise verbrannt ist, so dass durch die Farbänderung sich jede zehnte Markierung von den sonstigen Markierungen unmittelbar erkennbar abhebt. Die thermische Behandlung der Vertiefung erfolgt beispielsweise über ein widerstandsbeheiztes Prägemittel.Preferably, such a marking is provided only on selected depressions, for example, arranged on every tenth recess a length measure that indicates the absolute length of the building timber from the beginning to the end. Preferably, every tenth recess is thermally treated, so that the surface of the recess is burned, for example, so that by the color change every tenth mark stands out from the other markers immediately recognizable. The thermal treatment of the depression takes place, for example, via a resistance-heated embossing agent.
Um die Haltbarkeit der Kennzeichnung zu verbessern, ist gemäß einer weiteren Ausgestaltung vorgesehen, dass die Kennzeichnung thermisch oder mit Farbe auf die mindestens eine Oberfläche aufgebracht ist. Die Kennzeichnung, also beispielsweise eine das Längenmaß angebende Zahl, wird entweder thermisch in die Oberfläche des Bauschnittholzes eingebracht, indem die Oberfläche beispielsweise teilweise verbrannt wird, so dass die Kohlenstoffschicht als erkennbare Farbänderung die Kennzeichnungen darstellt. Ferner ist vorgesehen, dass die Kennzeichnung mit Farbe aufgebracht wird, beispielsweise in Form eines Stempels, der an die entsprechende Stelle automatisch aufgebracht wird.In order to improve the durability of the marking, it is provided according to a further embodiment that the marking is applied thermally or with paint on the at least one surface. The marking, that is, for example, a number indicating the length, is either thermally introduced into the surface of the building timber by, for example, partially burning the surface, so that the carbon layer represents the markings as recognizable color change. It is further provided that the marking is applied with paint, for example in the form of a stamp, which is automatically applied to the appropriate location.
Ein erfindungsgemäßes Bauschnittholz lässt sich auf einfache Weise gemäß eines Verfahrens zur Erstellung einer eine Einteilung in Längsrichtung erzeugenden Vertiefung in einem Bauschnittholz herstellen, bei dem folgende Verfahrensschritte umfasst sind: 1) Förderung des Bauschnittholzes auf einem Fördermittel in eine Förderrichtung 2) Kontinuierliches Erstellen mindestens einer eine Einteilung der Längsrichtung erzeugenden Vertiefung in dem Bauschnittholz durch ein Prägemittel während der Förderung, wobei das Prägemittel eine auf einem rotierenden Führungsrad geführte Prägekette mit Prägezähnen ist.A construction timber according to the invention can be produced in a simple way in accordance with a method for producing a recess which produces a division in the longitudinal direction in a construction timber, in the following method steps comprising: 1) conveying the building timber on a conveyor in a conveying direction 2) continuously creating at least one longitudinal division recess in the building timber by an embossing means during conveying, the embossing means being a stamping chain with embossing teeth guided on a rotating guide wheel.
Das Bauschnittholz wird folglich auf einem Fördermittel in eine Förderrichtung gefordert, so dass es sich vorzugsweise in Längsrichtung fortbewegt. Das Bauschnittholz wird dabei in Richtung des Prägemittels gefördert, so dass das Prägemittel, während das Bauschnittholz an dem Prägemittel vorbeigefördert wird, kontinuierlich mindestens eine eine Einteilung der Längsrichtung erzeugende Vertiefung in dem Bauschnittholz erzeugt. Vorzugsweise werden kontinuierlich über die gesamte Länge des Bauschnittholzes verteilte Vertiefungen in mindestens einer Oberfläche des Bauschnittholzes eingebracht - eine Mehrzahl an Vertiefungen. Das Prägemittel arbeitet dabei kontinuierlich, so dass die Förderung des Bauschnittholzes für den Prägevorgang nicht unterbrochen werden muss. Vorzugsweise wird der für die Prägung erforderliche Prägedruck zwischen dem Prägemittel und der Fördereinrichtung aufgebaut.The Bauschnittholz is therefore required on a conveyor in a conveying direction, so that it preferably moves in the longitudinal direction. The Bauschnittholz is promoted in the direction of the embossing means, so that the embossing medium, while the Bauschnittholz is conveyed past the embossing means, continuously generates at least one a division of the longitudinal direction generating recess in the Bauschnittholz. Preferably, depressions distributed continuously over the entire length of the construction timber are introduced into at least one surface of the construction timber - a plurality of depressions. The embossing agent works continuously, so that the promotion of Bauschnittholzes for the embossing process must not be interrupted. Preferably, the embossing pressure required for embossing is established between the embossing means and the conveyor.
Als besonders vorteilhaftes Prägemittel für ein vorgenanntes Verfahren hat sich gemäß einer ersten Ausgestaltung ein rotierendes Prägerad mit Prägezähnen - nicht erfindungsgemäß - oder eine auf einem rotierenden Führungsrad geführte Prägekette mit Prägezähnen herausgestellt. Das rotierende Prägerad mit Prägezähnen hat beispielsweise eine Außenumfangsgeschwindigkeit, die der Fördergeschwindigkeit des Bauschnittholzes auf dem Fördermittel entspricht. Die Prägezähne des Prägerades weisen einen Abstand auf, der dem einzuprägenden Abstand der Vertiefungen in dem Bauschnittholz entspricht. Gleiches gilt für eine auf einem Führungsrad geführte Prägekette mit Prägezähnen, bei der beispielsweise auf jedem Kettenglied ein Prägezahn angeordnet ist. Der Abstand zwischen den Prägezähnen auf den Kettengliedern entspricht später folglich dem Abstand der Prägungen im Bauschnittholz. Die Prägezähne sind dabei beispielsweise vollständig gleich ausgebildet oder alternativ weist beispielsweise jeder zehnte Prägezahn eine besondere Form auf, so dass jede zehnte Vertiefung ebenfalls eine besondere Form aufweist. Zusätzlich zu den Prägezähnen ist auch vorgesehen, dass auch einem Kettenglied der Prägekette oder auf dem Prägerad mindestens ein Stempel vorgesehen ist, mit dem vorbestimmte Vertiefungen farbig oder thermisch gekennzeichnet werden können.As a particularly advantageous embossing means for an aforementioned method, according to a first embodiment, a rotating embossing wheel with embossing teeth - not according to the invention - or an embossing chain guided on a rotating guide wheel with embossing teeth has been found. The rotating embossing wheel with embossing teeth, for example, has an outer peripheral speed which corresponds to the conveying speed of the building timber on the conveyor. The embossing teeth of the embossing wheel have a distance corresponding to the einzuprägenden distance of the recesses in the Bauschnittholz. The same applies to a guided on a guide wheel embossing chain with embossing teeth, in which, for example, an embossing tooth is arranged on each chain link. The distance between the embossing teeth on the chain links thus later corresponds to the distance of the imprints in Bauschnittholz. The embossing teeth are, for example, completely identical or alternatively, for example, every tenth embossing tooth on a special shape, so that every tenth recess also has a special shape. In addition to the embossing teeth is also provided that also a chain link the embossing chain or on the embossing wheel at least one stamp is provided, can be marked with the predetermined recesses color or thermal.
Des Weiteren können je nach Länge der Prägekette oder je nach Durchmesser des Prägerades individuelle Vertiefungen über die gesamte Länge des Bauschnittholzes erstellt werden. Ferner ist auch eine durchgehende Bemaßung möglich. Die Länge der Kette entspricht dabei der Länge des Bauschnittholzes bzw. des Umfang des Prägerades der Länge des Bauschnittholzes.Furthermore, depending on the length of the embossing chain or, depending on the diameter of the embossing wheel, individual depressions can be created over the entire length of the building timber. Furthermore, a continuous dimensioning is possible. The length of the chain corresponds to the length of the Bauschnittholzes or the scope of the stamping wheel the length of Bauschnittholzes.
Auf besonders einfache Weise lässt sich gemäß einer Ausgestaltung des Verfahrens die Vertiefung in einem Bauschnittholz dadurch erzeugen, dass ein Prägespalt zwischen Fördermittel und Prägemittel ausgebildet ist, insbesondere dass das Bauschnittholz durch ein Führungsmittel in den Prägespalt geführt wird. Der Prägespalt zwischen Fördermittel und Prägemittel ist derart ausgebildet, dass die Prägezähne des Prägemittels eine Vertiefung oder mehrere Vertiefungen in der Oberfläche des Bauschnittholzes hinterlassen, während das Bauschnittholz durch den Prägespalt läuft. Um ein Ausweichen des Bauschnittholzes während des Prägevorganges zu verhindern und insbesondere eine exakte Positionierung der Vertiefungen zu gewährleisten, ist das Bauschnittholz vorzugsweise durch ein seitliches Führungsmittel in den Prägespalt geführt, so dass durch das Führungsmittel eine exakte Positionierung der Vertiefungen, beispielsweise in einem Randbereich einer Seitenfläche, festgelegt ist.In a particularly simple way, according to an embodiment of the method, the recess can be produced in a building timber by forming an embossing gap between the conveying means and the embossing means, in particular by guiding the building timber into the embossing gap by a guiding means. The embossing gap between conveying means and embossing means is designed in such a way that the embossing teeth of the embossing means leave a depression or several depressions in the surface of the building cutting timber, while the building cutting timber runs through the embossing gap. In order to prevent evasion of the Bauschnittholzes during the embossing process and in particular to ensure an exact positioning of the recesses, the Bauschnittholz is preferably guided by a lateral guide means in the embossing gap, so that by the guide means an exact positioning of the wells, for example in an edge region of a side surface , is fixed.
Besonders vorteilhaft ist ferner gemäß einer weiteren Ausgestaltung, wenn gleichzeitig mit dem kontinuierlichen Erstellen einer eine Einteilung in Längsrichtung erzeugenden Vertiefung zumindest teilweise eine Kennzeichnung mit dem Prägemittel erfolgt, insbesondere eine thermische oder farbige Kennzeichnung. Das Prägerad oder die Prägekette weist dazu vorzugsweise Stempelbereiche auf, die mit einer Farbe benetzt werden, wobei anschließend die Farbe während des Prägevorgangs gleichzeitig mit dem Einbringen einer Vertiefung auf die Oberfläche des Bauschnittholzes aufgebracht wird. Der Stempel bildet beispielsweise Buchstaben oder Zahlen ab. Des Weiteren ist alternativ oder zusätzlich eine thermische Kennzeichnung vorgesehen, die beispielsweise dadurch erfolgt, dass die Prägezähne eines Prägerades oder die Prägezähne einer Prägekette erhitzt werden, so dass diese eine thermische Kennzeichnung im Bauschnittholz hinterlassen.According to a further embodiment, it is also particularly advantageous if, at least in part, a marking with the embossing agent takes place at the same time as the continuous creation of a depression generating a division in the longitudinal direction, in particular a thermal or colored marking. For this purpose, the embossing wheel or the embossing chain preferably has stamping areas which are wetted with a paint, the paint subsequently being applied to the surface of the building cutting timber during the embossing process simultaneously with the introduction of a depression. The stamp depicts letters or numbers, for example. Furthermore, alternatively or additionally, a thermal marking is provided which, for example, takes place in that the embossing teeth of a stamping wheel or the embossing teeth of a stamping chain are heated, so that they leave a thermal marking in the building cutting wood.
Besonders bevorzugt ist eine Verwendung eines zuvor beschriebenen Bauschnittholzes, ausgebildet als eine Dacheindeckungselemente tragende Dachlatte in einer Dachkonstruktion. Insbesondere gemäß einer der Ausgestaltungen, die vorangehend und nachfolgend beschrieben werden.Particularly preferred is a use of a previously described Bauschnittholzes, designed as a roof covering bearing roof batten in a roof construction. In particular, according to one of the embodiments described above and below.
Im Einzelnen gibt es nun eine Vielzahl von Möglichkeiten, das erfindungsgemäße Bauschnittholz und das Verfahren auszugestalten und weiterzubilden. Im Einzelnen wird dazu verwiesen auf die den Patentansprüchen 1 und 11 nachgeordneten Patentansprüche sowie auf die nachfolgende Beschreibung von bevorzugten Ausführungsbeispielen in Verbindung mit der Zeichnung. In der Zeichnung zeigen:
- Fig. 1
- ein Ausführungsbeispiel eines Bauschnittholzes während des Einbringens von Vertiefungen,
- Fig. 2
- ein weiteres Ausführungsbeispiel eines Bauschnittholzes während des Einbringens von Vertiefungen,
- Fig. 3
- ein Ausführungsbeispiel eines Bauschnittholzes in Draufsicht,
- Fig. 4a-g
- Ausführungsbeispiele von Vertiefungen in einem Bauschnittholz,
- Fig. 5
- ein Ausführungsbeispiel eines Bauschnittholzes während des Einbringens von Vertiefungen,
- Fig. 6
- ein weiteres Ausführungsbeispiel eines Bauschnittholzes während des Einbringens von Vertiefungen, und
- Fig. 7
- ein erfindungsgemäßes Bauschnittholz im Montagezustand unterhalb einer Dacheindeckungsplatte.
- Fig. 1
- an embodiment of a building timber during the introduction of depressions,
- Fig. 2
- a further embodiment of a building timber during the introduction of depressions,
- Fig. 3
- an embodiment of a Bauschnittholzes in plan view,
- Fig. 4a-g
- Exemplary embodiments of recesses in a building timber,
- Fig. 5
- an embodiment of a building timber during the introduction of depressions,
- Fig. 6
- a further embodiment of a Bauschnittholzes during the introduction of wells, and
- Fig. 7
- an inventive Bauschnittholz in the assembled state below a roofing plate.
Die Vertiefungen 2 sind in die gemäß
Die
Claims (13)
- Lumber (1) for building a supporting construction, wherein the extension of the lumber (1) in the longitudinal direction is substantially greater than its width or height, wherein at least one recess (2) creating a sectioning in the longitudinal direction is worked into at least one side surface (3, 3') of the lumber (1), wherein the lumber (1) has an essentially rectangular cross section, and wherein the recess (2) is made using an embossing process
characterized in
that the recess (2) is worked into an edge area of a first side surface (3), so that the recess (2) also extends at least partially into a second side surface (3'). - Lumber (1) according to claim 1, characterized in that several recesses (2) are made.
- Lumber (1) according to claim 1 or 2, characterized in that the recess (2) has a varying depth, at least locally.
- Lumber (1) according to any one of claims 1 to 3, characterized in that the recess (2) has a depth between 0,05 mm and 4 mm.
- Lumber (1) according to any one of claims 1 to 4, characterized in that the depth of the recess (2) corresponds to about 10 % of the dimension of the lumber (1) in the direction of the extension of the recess (2).
- Lumber (1) according to any one of claims 2 to 5, characterized in that the width of the recesses (2) parallel to the longitudinal extension of the lumber (1) is between 0,1 mm and 10 mm, in particular between 0,5 mm and 1,5 mm.
- Lumber (1) according to any one of claims 1 to 6, characterized in that the distance between two recesses (2) is between 2 mm and 30 mm, in particular, that this distance is between 5 mm and 10 mm, preferably, that the distance between two recesses is 10 mm, so that the distance between recesses (2) serves as a measure.
- Lumber (1) according to any one of claims 1 to 7, characterized in that the recess (2) is provided at least partially with identification (4), in particular is provided with identification (4) indicating the length measure.
- Lumber (1) according to claim 8, characterized in that the identification (4) is applied thermally or with color.
- Method for making a recess (2) creating a sectioning in the longitudinal direction in the lumber (2) according to any one of claims 1 to 9, including the following method steps:- conveying the lumber (1) on a conveyor means in a conveyor direction,- continually creating at least one sectioning in the longitudinal direction in the lumber (2) by means of embossing while being conveyed, wherein the embossing means is an embossing chain (10) with embossing teeth (11) led over a guide wheel (9).
- Method according to claim 10, characterized in that an embossing gap is created between the conveyor means and the embossing means, in particular, that the lumber (1) is guided into the embossing gap by a guide means.
- Method according to claim 10 or 11, characterized in that, simultaneously with the continual embossing of a recess creating a sectioning in the longitudinal direction, identification (4), in particular thermal or colored identification (4), is at least partially created with the embossing means.
- Use of lumber (1) according to any one of claims 1 to 9 as a roof batten supporting roofing elements in a roof construction, wherein the lumber (1) is provided with at least one recess (2) arranged in one surface and made by means of embossing creating a sectioning in the longitudinal direction.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20120007326 EP2725163B1 (en) | 2012-10-24 | 2012-10-24 | Structural timber for constructing a supporting structure |
DE201320009356 DE202013009356U1 (en) | 2012-10-24 | 2013-10-24 | timber element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20120007326 EP2725163B1 (en) | 2012-10-24 | 2012-10-24 | Structural timber for constructing a supporting structure |
Publications (2)
Publication Number | Publication Date |
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EP2725163A1 EP2725163A1 (en) | 2014-04-30 |
EP2725163B1 true EP2725163B1 (en) | 2014-12-31 |
Family
ID=47137452
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20120007326 Not-in-force EP2725163B1 (en) | 2012-10-24 | 2012-10-24 | Structural timber for constructing a supporting structure |
Country Status (2)
Country | Link |
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EP (1) | EP2725163B1 (en) |
DE (1) | DE202013009356U1 (en) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3495638A (en) * | 1965-09-10 | 1970-02-17 | Wayne E Humphrey | Method and apparatus for texturing wood surfaces |
GB2025314B (en) * | 1978-07-14 | 1982-11-24 | Meinan Machinery Works | Method of and apparatus for preventing curling of veneer |
DE3613440A1 (en) * | 1986-04-21 | 1987-10-29 | Michael Hackl | METHOD AND DEVICE FOR GLUING OR BONDING EDGE STRIPS IN SOLID WOOD |
FR2778192B3 (en) * | 1998-04-29 | 2000-07-07 | Jacques Emile Marcel Rocher | DEVICE FOR COVERING A BUILDING WITH SLATE-TYPE ELEMENTS |
JP2002364129A (en) * | 2001-06-06 | 2002-12-18 | Takashi Kotegawa | Tile support implement |
CA2369630A1 (en) * | 2002-01-16 | 2003-07-16 | Richard J. Buhler | Markings on building products |
DE202006009589U1 (en) * | 2006-06-20 | 2006-09-21 | Sägewerkstechnik Schwalbe GmbH | Wood-shaping device for non-cutting shaping and structuring of solid wood surfaces has cylindrical press rollers |
-
2012
- 2012-10-24 EP EP20120007326 patent/EP2725163B1/en not_active Not-in-force
-
2013
- 2013-10-24 DE DE201320009356 patent/DE202013009356U1/en not_active Expired - Lifetime
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DE202013009356U1 (en) | 2014-01-07 |
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