EP3263788A1 - Connection of two timber beams - Google Patents

Connection of two timber beams Download PDF

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Publication number
EP3263788A1
EP3263788A1 EP17001082.1A EP17001082A EP3263788A1 EP 3263788 A1 EP3263788 A1 EP 3263788A1 EP 17001082 A EP17001082 A EP 17001082A EP 3263788 A1 EP3263788 A1 EP 3263788A1
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EP
European Patent Office
Prior art keywords
screws
plate
ending
screw
beams
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Granted
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EP17001082.1A
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German (de)
French (fr)
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EP3263788B1 (en
Inventor
Stephan Schindlauer
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Sihga GmbH
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Sihga GmbH
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/26—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
    • E04B1/2604—Connections specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/26—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
    • E04B1/2604—Connections specially adapted therefor
    • E04B2001/2644—Brackets, gussets or joining plates
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/26—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
    • E04B1/2604—Connections specially adapted therefor
    • E04B2001/2652—Details of nailing, screwing, or bolting

Definitions

  • the invention relates to a compound of two wooden beams.
  • the US 4280686 A shows a fitting formed from sheet metal for connecting two wooden beams wherein the first wooden beam is aligned with an end face of a lateral surface side of the second wooden beam facing and face and lateral surface side are aligned parallel to each other.
  • the substantially flat design fitting is located between the facing surfaces of the wooden beams and protrudes on two opposite edges over the end face of the first wooden beam.
  • the fitting is connected by nails to the first wooden beam.
  • the fitting is connected by nails to the second wooden beam. The nails are aligned normal to the plane of the flat fitting.
  • the compound is less rigid and less resistant to bending; a typical application in which this does not interfere with the connection of piles and longitudinal beams of fences, with a longitudinal beam ends with its end face on a lateral surface side of a pile.
  • the fitting is provided at the projecting below the end face of the longitudinal beam area with a fold on which the longitudinal beam rests with its end portion from above.
  • the US 2013/0259563 A1 shows a fitting consisting of several individual sheets and a few screws for fastening five rods with the same square cross-sectional area to each other.
  • Four of the bars each end with an end face on mutually equal height on each lateral surface side of the fifth central, continuous rod.
  • the individual sheets of the connection fitting each extend between one Lateral surface side of the central rod and an end face of a protruding thereon rod, so also next to said end face on lateral surface sides of rods.
  • the metal sheets of the connecting fitting are connected by screws, which run through a respective rod, to a metal sheet located in each case on the other side of the rod.
  • connection is reasonably rigid. But it has high production costs and looks very technical.
  • the principle can only be applied to the connection of only two bars, if the two bars are of equal width in the direction normal to the common plane.
  • the WO 02066754 A1 shows a fitting for the T-connection of beams.
  • the fitting is essentially a U-shaped bent sheet metal part, which rests flat when properly mounted with its base surface on the front side of the ends of the T-connection carrier and rests with its legs on lateral surfaces of this carrier.
  • the base of the fitting is widened laterally over the legs by two tabs. In the assembled state, the tabs are connected to the continuous beam and the legs to the ending beam by screws or nails.
  • Disadvantages are that the fitting is visually very present and also offers only relatively low rigidity and strength against bending stress.
  • the object underlying the invention is to provide a T-connection for two wooden beams, with an end face of the first "ending beam” facing a lateral surface side of the second "continuous beam” oriented parallel to this end face.
  • the connection should be easy to assemble, fittings should be largely concealed in the assembled state, forces should be both normal and parallel to the joint surfaces of the bar well be transferable.
  • the connection should also transmit torques about axes which are normal to the plane defined by the bars, so well and non-destructively between the bars that separate diagonal struts between the bars can be omitted.
  • a fitting which has a flat plate and a plurality of screws, in the installation situation on the plate, the end face of the end beam and the side surface parallel to the lateral surface side of the continuous bar rest from opposite sides and Screws through screw through holes in the plate pass through in the ending beam or in the continuous beam and are in threaded engagement with the material of the beams.
  • the plate projects in the direction parallel to the plane defined by the two beams, on both sides beyond the end face of the ending beam.
  • the screws extend into the continuous beam. Screws which extend in the terminating beam make an acute angle with the longitudinal direction of the end beam and penetrate the end face of the terminating beam at the edge region to those lateral surface sides which are normally aligned with the plane defined by the two beams.
  • Fig. 1 are an ending beam 1 made of wood and a continuous beam 2 made of wood connected by a fitting 3 to a T-arrangement.
  • the fitting 3 consists of a plate 4 and a plurality of screws 5, 6, 7.
  • the plate 4 rests flat with its one major surface on that side surface of the continuous bar 2, which faces the ending beam 1.
  • the second main surface of the plate 4 rests flat against the end face of the ending beam 1 facing the continuous bar 2.
  • the plate 4 is first fixed to the end face of the ending beam 1.
  • two relatively short, ideally self-drilling and thread-cutting screws 5, by ringen shedgangsbohrept 8 (with fitting in position on the end face plate 4, Fig. 2 ) in the plate 4 is screwed into the bar 2.
  • the orientation of the screws 5 is parallel to the longitudinal direction of the ending beam 1 and thus normal to the plane of the plate 4th
  • the screw through holes 8 are each formed as a stepped bore oriented normal to the plane of the plate 4, followed by a funnel-like narrow portion and then a longitudinal portion of constant smaller diameter on a longitudinal portion of constant larger diameter.
  • the area of larger diameter is so wide and deep that the head of the respective continuous screw 5 is completely in place and thus no longer protrudes beyond the plate 4.
  • the plate 4 is connected to the ending bar 1 with statically relevant screws 6.
  • the screws 6 are preferably again self-drilling and thread-cutting. she in turn pass through, formed as a stepped bore screw through holes 9 in the plate 4 through, in which each of the head of the screw 6 is completely space.
  • the screw through holes 9 are not normal to the plane of the plate 4 aligned but inclined at an acute angle, typically 30 ° from the normal.
  • the plate 4 is sufficiently thick (eg 12 mm) and the smaller diameter of the screw through holes 9 is sufficiently narrow to cause the screw through holes 9 to act as guides which substantially predetermine the direction in which the screws 6 are screwed.
  • the screw through holes 9 through the plate 4 lead to one of the two elongated edge regions of the end face of the ending beam 1, which are aligned normal to the plane defined by the two beams 1, 2 level.
  • the SSen shedgangsbohrept 9 and thus also the screws 6 are aligned so that their normal projection on the plane defined by the beams 1, 2 plane with the longitudinal direction of the ending beam 1 assumes an acute angle of typically 30 °, along the screws 6 with increasing Distance from the end face of the beam 1 also increases the distance to the lateral surface side of the ending beam 1 in the vicinity of which the head of the respective screw 6 is located.
  • the screws 6 are dimensioned so long that in the screwed state, the screw tip and the screw head are located on different sides of that longitudinal median plane of the ending beam 1, which is normal to the plane defined by the two beams 1, 2 level.
  • the two rows of screw through holes 9 on the plate 4 are shifted from each other by a half pitch of the bore spacings (FIG. Fig. 2 ).
  • the continuous bar 2 is placed with a lateral surface side in the intended relative position to this after the step 2 still exposed major surface of the plate 4 and by means of screws 7, which pass through SSen shedgangsbohrept 10 in the plate 4 and are preferably formed self-drilling and self-tapping , screwed by the screws 7 penetrate through said lateral surface in the continuous beam 2 and form a threaded connection with this.
  • the screws 7 can be aligned normal to the plane of the plate 4 and thus to the longitudinal direction of the continuous bar 2. Ideally, the screws 7 are so long that they penetrate the longitudinal center plane of the continuous beam 2, which is parallel to the lateral surface side of the beam 2, on which the screws 7 penetrate into this.
  • the two rows of SSen shedgangsbohronne 9 for the leading in the continuous beam 1 screws 7, are located in each case at one of the two edge portions 11 of the plate 4, which protrude beyond the end face of the end beam 1 at each of those side edges of the end face to the through the bars 1, 2 together plane spanned are normal and open in the vicinity of the fferen shedgangsbohronne 8 for the screws 6 in the end face of the ending beam 1.
  • a framework is formed by means of the beams 1, 2, which is a roof of a simple building as typically a carport or a shed.
  • the ending beam 1 is a wooden pillar and the continuous beam 2 is part of the roof truss.
  • this may be made of aluminum, be 12 mm thick and the distance between two adjacent rows of screw through holes 8, 9 is 3 cm.
  • diagonal struts between the bars to be connected 1, 2 in the case of application as carports particularly valuable because it eliminates a disturbing restriction of the passage cross-section. In the case of application to other buildings, it may also be very valuable because it eliminates a limitation on the positioning of windows or gates.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

Die Erfindung betrifft eine T-Verbindung zweier Balken (1, 2) mittels eines Beschlages (3), welcher eine ebene Platte (4) und mehrere Schrauben (5, 6, 7) aufweist wobei die Platte zwischen den einander zugewandten Flächen der Balken (1, 2) liegt und mit beiden Balken verschraubt ist. Schrauben (6), welche durch Durchgangsbohrungen (9) in der Platte hindurch in den endenden Balken (1) hinein verlaufen, schließen mit der Längsrichtung des endenden Balkens (1) einen spitzen Winkel ein und sie durchdringen die Stirnfläche des endenden Balkens (1) am Randbereich zu jenen Mantelflächenseiten dieses Balkens (1), welche zu der durch die beiden Balken (1, 2) aufgespannten Ebene normal ausgerichtet sind.The invention relates to a T-connection of two beams (1, 2) by means of a fitting (3), which has a flat plate (4) and a plurality of screws (5, 6, 7), wherein the plate between the mutually facing surfaces of the beams ( 1, 2) and is bolted to both beams. Screws (6) passing through through-holes (9) in the plate in the terminating beam (1) make an acute angle with the longitudinal direction of the terminating beam (1) and penetrate the end face of the terminating beam (1). at the edge region to those lateral surface sides of this beam (1), which are aligned to the plane defined by the two beams (1, 2) plane normal.

Description

Die Erfindung betrifft eine Verbindung zweier Holzbalken.The invention relates to a compound of two wooden beams.

Die US 4280686 A zeigt einen aus Blech gebildeten Beschlag für das Verbinden zweier Holzbalken wobei der erste Holzbalken mit einer Stirnfläche einer Mantelflächenseite des zweiten Holzbalkens zugewandt ausgerichtet ist und Stirnfläche und Mantelflächenseite zueinander parallel ausgerichtet sind. Der im Wesentlichen flächig ausgebildete Beschlag befindet sich zwischen den einander zugewandten Flächen der Holzbalken und steht an zwei gegenüberliegenden Rändern über die Stirnfläche des ersten Holzbalkens vor. Am an der Stirnfläche des ersten Balkens anliegenden Flächenbereich ist der Beschlag durch Nägel mit dem ersten Holzbalken verbunden. An den von der Stirnfläche vorstehenden Bereichen ist der Beschlag durch Nägel mit dem zweiten Holzbalken verbunden. Die Nägel sind normal zur Ebene des flächigen Beschlages ausgerichtet.The US 4280686 A shows a fitting formed from sheet metal for connecting two wooden beams wherein the first wooden beam is aligned with an end face of a lateral surface side of the second wooden beam facing and face and lateral surface side are aligned parallel to each other. The substantially flat design fitting is located between the facing surfaces of the wooden beams and protrudes on two opposite edges over the end face of the first wooden beam. At the surface area adjacent to the end face of the first beam, the fitting is connected by nails to the first wooden beam. At the areas projecting from the end face, the fitting is connected by nails to the second wooden beam. The nails are aligned normal to the plane of the flat fitting.

Die Verbindung ist wenig biegesteif und wenig biegefest; ein typischer Anwendungsfall bei dem das nicht stört ist die Verbindung von Pfählen und Längsbalken von Zäunen, wobei ein Längsbalken mit seiner Stirnseite an einer Mantelflächenseite eines Pfahls endet. Um die Montage zu erleichtern und um die Festigkeit gegen Abwärtsgleiten des Längsbalkens zu erhöhen ist der Beschlag an dem unter der Stirnseite des Längsbalkens vorragenden Bereich mit einer Auffaltung versehen, an welcher der Längsbalken mit seinem Endbereich von oben her aufliegt.The compound is less rigid and less resistant to bending; a typical application in which this does not interfere with the connection of piles and longitudinal beams of fences, with a longitudinal beam ends with its end face on a lateral surface side of a pile. In order to facilitate the assembly and to increase the strength against sliding down the longitudinal beam, the fitting is provided at the projecting below the end face of the longitudinal beam area with a fold on which the longitudinal beam rests with its end portion from above.

Die US 2013/0259563 A1 zeigt einen aus mehreren Einzelblechen und einigen Schrauben bestehenden Beschlag für das befestigen von fünf Stäben mit gleicher quadratischer Querschnittsfläche aneinander. Vier der Stäbe enden jeweils mit einer Stirnseite auf zueinander gleicher Höhe an jeweils einer Mantelflächenseite des fünften zentralen, durchgehenden Stabes. Die einzelnen Bleche des Verbindungsbeschlages verlaufen jeweils sowohl zwischen einer Mantelflächenseite des mittleren Stabes und einer Stirnseite eines daran heranragenden Stabes, also auch neben besagter Stirnfläche an Mantelflächenseiten von Stäben. An den über die Stirnfläche vorstehenden Bereichen sind die Bleche des Verbindungsbeschlages durch Schrauben, welche durch jeweils einen Stab hindurch verlaufen, mit einem jeweils an der anderen Seite des Stabes befindlichen Blech verbunden.The US 2013/0259563 A1 shows a fitting consisting of several individual sheets and a few screws for fastening five rods with the same square cross-sectional area to each other. Four of the bars each end with an end face on mutually equal height on each lateral surface side of the fifth central, continuous rod. The individual sheets of the connection fitting each extend between one Lateral surface side of the central rod and an end face of a protruding thereon rod, so also next to said end face on lateral surface sides of rods. At the areas projecting beyond the end face, the metal sheets of the connecting fitting are connected by screws, which run through a respective rod, to a metal sheet located in each case on the other side of the rod.

Die Verbindung ist einigermaßen biegesteif. Sie hat aber hohen Herstellungsaufwand und sieht auch sehr technisch aus. Das Prinzip lässt sich nur dann auf die Verbindung von nur zwei Balken anwenden, wenn die beiden Balken in der zur gemeinsam aufgespannten Ebene normalen Richtung gleich breit sind.The connection is reasonably rigid. But it has high production costs and looks very technical. The principle can only be applied to the connection of only two bars, if the two bars are of equal width in the direction normal to the common plane.

Die WO 02066754 A1 zeigt eine Beschlag für die T-Verbindung von Balken. Der Beschlag ist im Wesentlichen ein U-förmig gebogener Blechteil, welcher bei bestimmungsgemäßer Montage mit seiner Basisfläche an der Stirnseite des an der T-Verbindung endenden Trägers flächig anliegt und mit seinen Schenkeln an Mantelflächen dieses Trägers anliegt. Die Grundfläche des Beschlages ist durch zwei Laschen seitlich über die Schenkel hinaus verbreitert. In montiertem Zustand sind die Laschen mit dem durchgehenden Balken und die Schenkel mit dem endenden Balken durch Schrauben oder Nägel verbunden. Nachteile sind, dass der Beschlag optisch sehr präsent ist und zudem nur relativ geringe Steifigkeit und Festigkeit gegen Biegebelastung bietet.The WO 02066754 A1 shows a fitting for the T-connection of beams. The fitting is essentially a U-shaped bent sheet metal part, which rests flat when properly mounted with its base surface on the front side of the ends of the T-connection carrier and rests with its legs on lateral surfaces of this carrier. The base of the fitting is widened laterally over the legs by two tabs. In the assembled state, the tabs are connected to the continuous beam and the legs to the ending beam by screws or nails. Disadvantages are that the fitting is visually very present and also offers only relatively low rigidity and strength against bending stress.

Die der Erfindung zu Grunde liegende Aufgabe besteht darin eine T-Verbindung für zwei aus Holz bestehende Balken zu schaffen, wobei also eine Stirnfläche des ersten "endenden Balkens" einer zu dieser Stirnfläche parallel ausgerichteten Mantelflächenseite des zweiten "durchgehenden Balkens" zugewandt liegt. Die Verbindung soll einfach zu montieren sein, in montiertem Zustand sollen Beschlagteile weitestgehend verdeckt sein, Kräfte sollen sowohl normal als auch parallel zu den Verbindungsflächen der Balken gut übertragbar sein. Insbesondere soll die Verbindung auch Drehmomente um Achsen die zu der durch die Balken aufgespannten Ebene normal stehen, so gut und zerstörungsfrei zwischen den Balken übertragen, dass separate Diagonalverstrebungen zwischen den Balken weggelassen werden können.The object underlying the invention is to provide a T-connection for two wooden beams, with an end face of the first "ending beam" facing a lateral surface side of the second "continuous beam" oriented parallel to this end face. The connection should be easy to assemble, fittings should be largely concealed in the assembled state, forces should be both normal and parallel to the joint surfaces of the bar well be transferable. In particular, the connection should also transmit torques about axes which are normal to the plane defined by the bars, so well and non-destructively between the bars that separate diagonal struts between the bars can be omitted.

Für das Lösen der Aufgabe ist vorgesehen die Verbindung mittels eines Beschlages zu bilden, welcher eine ebene Platte und mehrere Schrauben aufweist, wobei in Einbausituation an der Platte die Stirnseite des endenden Balkens und die zu Stirnfläche parallele Mantelflächenseite des durchgehenden Balkens von gegenüberliegenden Seiten her anliegen und Schrauben durch Schraubendurchgangsbohrungen in der Platte hindurch in den endenden Balken bzw. in den durchgehenden Balken hinein verlaufen und mit dem Material der Balken in Gewindeeingriff sind. Die Platte steht in jener Richtung, welche zu der durch die beiden Balken aufgespannten Ebene parallel liegt, beidseits über die Stirnfläche des endenden Balkens vor. Durch die vorstehenden Bereiche verlaufen die Schrauben in den durchgehenden Balken hinein. Schrauben, welche in den endenden Balken hinein verlaufen schließen mit der Längsrichtung des endenden Balkens einen spitzen Winkel ein und durchdringen die Stirnfläche des endenden Balkens am Randbereich zu jenen Mantelflächenseiten, welche zu der durch die beiden Balken aufgespannten Ebene normal ausgerichtet sind.For solving the problem is provided to form the connection by means of a fitting, which has a flat plate and a plurality of screws, in the installation situation on the plate, the end face of the end beam and the side surface parallel to the lateral surface side of the continuous bar rest from opposite sides and Screws through screw through holes in the plate pass through in the ending beam or in the continuous beam and are in threaded engagement with the material of the beams. The plate projects in the direction parallel to the plane defined by the two beams, on both sides beyond the end face of the ending beam. Through the above areas, the screws extend into the continuous beam. Screws which extend in the terminating beam make an acute angle with the longitudinal direction of the end beam and penetrate the end face of the terminating beam at the edge region to those lateral surface sides which are normally aligned with the plane defined by the two beams.

Die erfindungsgemäße Verbindung wird an Hand von Zeichnungen zu einer beispielhaften Ausführung veranschaulicht:

Fig. 1:
zeigt eine Prinzipskizze der Verbindung wobei aus Anschaulichkeitsgründen die Balken und die Platte als durchsichtig symbolisiert sind. Die Blickrichtung ist normal zu jener Ebene die durch die zu verbindenden Balken aufgespannt wird. Ein gekrümmter Doppelpfeil symbolisiert die Ausrichtung von Drehmomenten auf deren Übertragung zwischen den Balken hin die Verbindung ausgelegt ist.
Fig. 2:
zeigt die Platte von Fig. 1 für sich allein mit Blick-richtung normal auf jene Fläche die bei montiertem Beschlag an dem durchgehenden Balken anliegt.
The compound according to the invention is illustrated by means of drawings to an exemplary embodiment:
Fig. 1:
shows a schematic diagram of the connection wherein for clarity, the bars and the plate are symbolized as transparent. The viewing direction is normal to the plane that is spanned by the bars to be connected. A curved double arrow symbolizes the alignment of torques on the transmission between the beams towards the connection is designed.
Fig. 2:
shows the plate of Fig. 1 by itself with the direction of view normal to that surface which rests against the continuous beam when the fitting is mounted.

Gemäß Fig. 1 sind ein endender Balken 1 aus Holz und ein durchgehender Balken 2 aus Holz durch einen Beschlag 3 zu einer T-Anordnung miteinander verbunden. Der Beschlag 3 besteht dabei aus einer Platte 4 und mehreren Schrauben 5, 6, 7.According to Fig. 1 are an ending beam 1 made of wood and a continuous beam 2 made of wood connected by a fitting 3 to a T-arrangement. The fitting 3 consists of a plate 4 and a plurality of screws 5, 6, 7.

Die Platte 4 liegt mit ihrer einen Hauptfläche flächig an jener Seitenfläche des durchgehenden Balkens 2 an, welche dem endenden Balken 1 zugewandt liegt. Die zweite Hauptfläche der Platte 4 liegt flächig an der dem durchgehenden Balken 2 zugewandten Stirnfläche des endenden Balkens 1 an.The plate 4 rests flat with its one major surface on that side surface of the continuous bar 2, which faces the ending beam 1. The second main surface of the plate 4 rests flat against the end face of the ending beam 1 facing the continuous bar 2.

Beim Montagevorgang wird die Platte 4 erst an der Stirnfläche des endenden Balkens 1 fixiert. Dazu werden, bei in passender Position an der Stirnfläche anliegender Platte 4, zwei relativ kurze, idealerweise selbstbohrende und gewindeschneidende Schrauben 5, durch Schraubendurchgangsbohrungen 8 (Fig. 2) in der Platte 4 hindurch in den Balken 2 hineingeschraubt. Die Ausrichtung der Schrauben 5 ist parallel zur Längsrichtung des endenden Balkens 1 und damit normal zur Ebene der Platte 4.During the assembly process, the plate 4 is first fixed to the end face of the ending beam 1. For this, two relatively short, ideally self-drilling and thread-cutting screws 5, by Schraubendurchgangsbohrungen 8 (with fitting in position on the end face plate 4, Fig. 2 ) in the plate 4 is screwed into the bar 2. The orientation of the screws 5 is parallel to the longitudinal direction of the ending beam 1 and thus normal to the plane of the plate 4th

Die Schraubendurchgangsbohrungen 8 sind jeweils als normal zur Ebene der Platte 4 ausgerichtete Stufenbohrung ausgebildet, wobei auf einen Längsbereich mit konstantem größerem Durchmesser ein trichterartiger Verengungsbereich und dann ein Längsbereich mit konstantem kleinerem Durchmesser folgt. Der Bereich mit größerem Durchmesser ist so breit und tief, dass der Kopf der jeweils durchgehenden Schraube 5 ganz darin Platz findet und damit nicht mehr über die Platte 4 vorsteht.The screw through holes 8 are each formed as a stepped bore oriented normal to the plane of the plate 4, followed by a funnel-like narrow portion and then a longitudinal portion of constant smaller diameter on a longitudinal portion of constant larger diameter. The area of larger diameter is so wide and deep that the head of the respective continuous screw 5 is completely in place and thus no longer protrudes beyond the plate 4.

Im zweiten Schritt wird die Platte 4 mit statisch relevanten Schrauben 6 mit dem endenden Balken 1 verbunden. Die Schrauben 6 sind bevorzugt wiederum selbstbohrend und gewindeschneidend. Sie verlaufen wiederum durch, als Stufenbohrung ausgebildete Schraubendurchgangsbohrungen 9 in der Platte 4 hindurch, in denen jeweils der Kopf der Schraube 6 vollständig Platz findet. Die Schraubendurchgangsbohrungen 9 sind allerdings nicht normal zur Ebene der Platte 4 ausgerichtet sondern um einen spitzen Winkel, typischerweise 30° aus der Normalen geneigt. Die Platte 4 ist ausreichend dick (z.B. 12 mm) und der kleinere Durchmesser der Schraubendurchgangsbohrungen 9 ist ausreichend eng, um zu bewirken, dass die Schraubendurchgangsbohrungen 9 als Führungen wirken, welche die Richtung in welche die Schrauben 6 eingeschraubt werden im Wesentlichen vorbestimmen.In the second step, the plate 4 is connected to the ending bar 1 with statically relevant screws 6. The screws 6 are preferably again self-drilling and thread-cutting. she in turn pass through, formed as a stepped bore screw through holes 9 in the plate 4 through, in which each of the head of the screw 6 is completely space. However, the screw through holes 9 are not normal to the plane of the plate 4 aligned but inclined at an acute angle, typically 30 ° from the normal. The plate 4 is sufficiently thick (eg 12 mm) and the smaller diameter of the screw through holes 9 is sufficiently narrow to cause the screw through holes 9 to act as guides which substantially predetermine the direction in which the screws 6 are screwed.

Die Schraubendurchgangsbohrungen 9 durch die Platte 4 führen an jeweils einen der beiden länglichen Randbereiche der Stirnfläche des endenden Balkens 1, welche zu der durch die beiden Balken 1, 2 aufgespannten Ebene normal ausgerichtet sind. Die Schraubendurchgangsbohrungen 9 und damit auch die Schrauben 6 sind so ausgerichtet, dass ihre Normalprojektion auf die durch die Balken 1, 2 gemeinsam aufgespannte Ebene mit der Längsrichtung des endenden Balkens 1 einen spitzen Winkel von typischerweise 30° einnimmt, wobei entlang der Schrauben 6 mit steigender Entfernung von der Stirnfläche des Balkens 1 auch die Entfernung zu jener Mantelflächenseite des endenden Balkens 1 hin zunimmt, in deren Nahbereich sich der Kopf der jeweiligen Schraube 6 befindet.The screw through holes 9 through the plate 4 lead to one of the two elongated edge regions of the end face of the ending beam 1, which are aligned normal to the plane defined by the two beams 1, 2 level. The Schraubendurchgangsbohrungen 9 and thus also the screws 6 are aligned so that their normal projection on the plane defined by the beams 1, 2 plane with the longitudinal direction of the ending beam 1 assumes an acute angle of typically 30 °, along the screws 6 with increasing Distance from the end face of the beam 1 also increases the distance to the lateral surface side of the ending beam 1 in the vicinity of which the head of the respective screw 6 is located.

Idealerweise sind die Schrauben 6 so lang bemessen, dass sich in eingeschraubtem Zustand die Schraubenspitze und der Schraubenkopf an unterschiedlichen Seiten jener Längsmittelebene des endenden Balkens 1 befinden, welche zu der auf die durch die beiden Balken 1, 2 aufgespannten Ebene normal steht. Damit zwei von gegenüberliegenden Randbereichen der Stirnseite des endenden Balkens 1 her eingeschraubte Schrauben 6 nicht miteinander kollidieren, sind die beiden Reihen von Schraubendurchgangsbohrungen 9 an der Platte 4 um ein halbes Rastermaß der Bohrungsabstände gegeneinander verschoben (Fig. 2).Ideally, the screws 6 are dimensioned so long that in the screwed state, the screw tip and the screw head are located on different sides of that longitudinal median plane of the ending beam 1, which is normal to the plane defined by the two beams 1, 2 level. In order that two screws 6 screwed in from opposite edge regions of the end face of the ending beam 1 do not collide with one another, the two rows of screw through holes 9 on the plate 4 are shifted from each other by a half pitch of the bore spacings (FIG. Fig. 2 ).

Im dritten Arbeitsschritt wird der durchgehende Balken 2 mit einer Mantelflächenseite in bestimmungsgemäßer Relativposition zu dieser auf die nach Schritt 2 noch freiliegende Hauptfläche der Platte 4 aufgelegt und mittels Schrauben 7, welche durch Schraubendurchgangsbohrungen 10 in der Platte 4 hindurch verlaufen und bevorzugt selbstbohrend und selbstschneidend ausgebildet sind, festgeschraubt, indem die Schrauben 7 durch besagte Mantelfläche in den durchgehenden Balken 2 eindringen und mit diesem eine Gewindeverbindung bilden. Die Schrauben 7 können normal zur Ebene der Platte 4 und damit zur Längsrichtung des durchgehenden Balkens 2 ausgerichtet sein. Idealerweise sind die Schrauben 7 so lang, dass sie jene Längsmittelebene des durchgehenden Balkens 2 durchdringen, welche zu jener Mantelflächenseite des Balken 2, an welcher die Schrauben 7 in diesen eindringen, parallel liegt.In the third step, the continuous bar 2 is placed with a lateral surface side in the intended relative position to this after the step 2 still exposed major surface of the plate 4 and by means of screws 7, which pass through Schraubendurchgangsbohrungen 10 in the plate 4 and are preferably formed self-drilling and self-tapping , screwed by the screws 7 penetrate through said lateral surface in the continuous beam 2 and form a threaded connection with this. The screws 7 can be aligned normal to the plane of the plate 4 and thus to the longitudinal direction of the continuous bar 2. Ideally, the screws 7 are so long that they penetrate the longitudinal center plane of the continuous beam 2, which is parallel to the lateral surface side of the beam 2, on which the screws 7 penetrate into this.

Die beiden Reihen von Schraubendurchgangsbohrungen 9 für die in den durchgehenden Balken 1 führenden Schrauben 7, befinden sich jeweils an einem der beiden Randbereiche 11 der Platte 4, welche über die Stirnfläche des endenden Balkens 1 an jeweils jenen Seitenrändern der Stirnfläche vorstehen, die zu der durch die Balken 1, 2 gemeinsam aufgespannten Ebene normal liegen und in deren Nahbereich auch die Schraubendurchgangsbohrungen 8 für die Schrauben 6 in die Stirnfläche des endenden Balkens 1 münden.The two rows of Schraubendurchgangsbohrungen 9 for the leading in the continuous beam 1 screws 7, are located in each case at one of the two edge portions 11 of the plate 4, which protrude beyond the end face of the end beam 1 at each of those side edges of the end face to the through the bars 1, 2 together plane spanned are normal and open in the vicinity of the Schraubendurchgangsbohrungen 8 for the screws 6 in the end face of the ending beam 1.

Bei der Übertragung von Drehmomenten zwischen den beiden Balken 1, 2 in der in Fig. 1 durch einen gekrümmten Pfeil symbolisieren Ausrichtung kommt es zu Biegebelastung der Platte 4, welche im Nahebereich der beiden Reihen von Schraubendurchgangsbohrungen 9 am stärksten ist. Um die Verbindung zwischen den beiden Balken 1, 2 maximal biegesteif auszubilden, muss die Platte 4 so bemessen sein, dass sie sich bei dieser Biegebelastung nur maximal marginal etwas elastisch verformen kann.When transmitting torques between the two beams 1, 2 in the in Fig. 1 By a curved arrow symbolize alignment, it comes to bending load of the plate 4, which is in the vicinity of the two rows of screw through holes 9 strongest. In order to form the connection between the two beams 1, 2 with maximum bending resistance, the plate 4 must be dimensioned so that it can deform only slightly marginally somewhat elastically at this bending load.

Bei einer sehr typischen und vorteilhaften Anwendung der erfindungsgemäßen Verbindung wird mit Hilfe der Balken 1, 2 ein Gerüst gebildet, welches ein Dach eines einfachen Gebäudes wie typischerweise eines Carports oder eines Schuppens trägt. Dabei ist der endende Balken 1 eine Säule aus Holz und der durchgehende Balken 2 Teil des Dachstuhls. Bei einer typischen dazu passenden Auslegung der Platte 4 kann diese aus Aluminium bestehen, 12 mm stark sein und der Abstand zwischen zwei benachbarten Reihen von Schraubendurchgangsbohrungen 8, 9 beträgt 3 cm.In a very typical and advantageous application of the compound according to the invention, a framework is formed by means of the beams 1, 2, which is a roof of a simple building as typically a carport or a shed. The ending beam 1 is a wooden pillar and the continuous beam 2 is part of the roof truss. In a typical mating design of the plate 4, this may be made of aluminum, be 12 mm thick and the distance between two adjacent rows of screw through holes 8, 9 is 3 cm.

Dass sich durch die erfindungsgemäße Verbindung Diagonalstreben zwischen den zu verbindenden Balken 1, 2 erübrigen ist im Fall der Anwendung als Carports besonders wertvoll, da damit eine störende Einschränkung des Durchfahrtsquerschnittes wegfällt. Im Fall der Anwendung an anderen Gebäuden kann es ebenfalls sehr wertvoll sein, weil damit eine Einschränkung bezüglich des Positionierens von Fenstern oder Toren wegfällt.That is unnecessary due to the compound according to the invention diagonal struts between the bars to be connected 1, 2 in the case of application as carports particularly valuable because it eliminates a disturbing restriction of the passage cross-section. In the case of application to other buildings, it may also be very valuable because it eliminates a limitation on the positioning of windows or gates.

Claims (5)

Verbindung zwischen einem endenden Balken (1) aus Holz und einem durchgehenden Balken (2) aus Holz mittels eines Beschlages (3), welcher eine ebene Platte (4) und mehrere Schrauben (5, 6, 7) aufweist, wobei an der einen Hauptfläche der Platte (4) die Stirnseite des endenden Balkens (1) flächig anliegt und an der zweiten Hauptfläche der Platte (4) eine Mantelflächenseite des durchgehenden Balkens (2) flächig anliegt, wobei die Schrauben (5, 6, 7) durch Schraubendurchgangsbohrungen (8, 9, 10) in der Platte (4) hindurch in die Balken (1, 2) hinein verlaufen und mit diesen in Gewindeeingriff sind, wobei Randbereiche (11) der Platte (4) in jener Richtung, welche zu der durch die beiden Balken (1, 2) gemeinsam aufgespannten Ebene parallel liegt, über die Stirnfläche des endenden Balkens (1) vorstehen und diese Randbereiche (11) die Schraubendurchgangsbohrungen (10) für die in den durchgehenden Balken (2) hinein verlaufenden Schrauben (7) aufweisen,
dadurch gekennzeichnet, dass
die Schrauben (6), welche in den endenden Balken (1) hinein verlaufen, mit der Längsrichtung des endenden Balkens (1) einen spitzen Winkel einschließen und die Stirnfläche des endenden Balkens (1) am Randbereich zu jenen Mantelflächenseiten dieses Balkens (1) durchdringen, welche zu der durch die beiden Balken aufgespannten Ebene normal ausgerichtet sind.Connection between an end beam (1) made of wood and a continuous beam (2) made of wood by means of a fitting (3), which has a flat plate (4) and a plurality of screws (5, 6, 7), wherein on one main surface the plate (4) the surface of the end beam (1) lies flat and on the second major surface of the plate (4) a lateral surface side of the continuous beam (2) is flat, wherein the screws (5, 6, 7) by Schraubendurchgangsbohrungen (8 , 9, 10) in the plate (4) into the bars (1, 2) extend into and are in threaded engagement with said edge portions (11) of the plate (4) in that direction, which to that by the two bars (1, 2) is in parallel plane spanned parallel, projecting beyond the end face of the ending beam (1) and these edge regions (11) the Schraubendurchgangsbohrungen (10) for in the continuous beam (2) extending into screws (7),
characterized in that
the screws (6), which run in the ending beam (1) into an acute angle with the longitudinal direction of the ending beam (1) and penetrate the end face of the ending beam (1) at the edge area to those lateral surface sides of this beam (1) which are normal to the plane defined by the two beams. Verbindung nach Anspruch 1, dadurch gekennzeichnet, 'dass die Achsen der Schraubendurchgangsbohrungen (8) durch welche hindurch die in den endenden Balken (1) hinein verlaufenden Schrauben (6) verlaufen, mit der Normalen auf die Ebene der Platte (4) einen spitzen Winkel einschließen und dass die Schraubendurchgangsbohrungen (8) eine Längsführung für die Schrauben (6) sind.Connection according to claim 1, characterized in that the axes of the screw through holes (8) through which the screws (6) extending in the ending beams (1) extend, with the normal to the plane of the plate (4), an acute angle include and that the Screw through holes (8) are a longitudinal guide for the screws (6). Verbindung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Normalprojektion einer in den endenden Balken (1) hinein verlaufenden Schraube (6) auf die durch die Balken (1, 2) gemeinsam aufgespannte Ebene mit der Längsrichtung des endenden Balkens (1) einen spitzen Winkel von weniger als 45° einschließt, wobei entlang der Schraube (6) mit steigender Entfernung von der Stirnfläche des Balkens (1) auch die Entfernung zu jener Mantelflächenseite des Balkens (1) hin zunimmt, in deren Nahbereich sich der Kopf der Schraube (6) befindet.Connection according to Claim 1 or 2, characterized in that the normal projection of a screw (6) extending into the ending bar (1) extends onto the plane jointly defined by the bars (1, 2) with the longitudinal direction of the ending bar (1) acute angle of less than 45 °, along the screw (6) increases with increasing distance from the end face of the beam (1) and the distance to the lateral surface side of the beam (1) out in the vicinity of the head of the screw ( 6). Verbindung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass zusätzlich zu den in einem spitzen Winkel zu dessen Längsrichtung in den endenden Balken (1) hinein verlaufenden Schrauben (6) auch mindestens eine Schraube (5) durch eine Schraubendurchgangsbohrung (8) in der Platte (4) hindurch parallel zu dessen Längsrichtung in den endenden Balkens (1) hinein verläuft.Connection according to one of Claims 1 to 3, characterized in that, in addition to the screws (6) extending at an acute angle to the longitudinal direction thereof in the ends of the beams (1), at least one screw (5) passes through a screw through hole (8) the plate (4) extends parallel to the longitudinal direction in the ending bar (1). Verbindung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der endende Balken (1) eine Säule eines Gebäudes ist auf welcher der durchgehende Balken (2) oben aufliegt.Connection according to one of claims 1 to 4, characterized in that the terminating beam (1) is a pillar of a building on which the continuous beam (2) rests on top.
EP17001082.1A 2016-06-30 2017-06-26 Connection of two timber beams Active EP3263788B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATGM157/2016U AT15567U1 (en) 2016-06-30 2016-06-30 Connection of two wooden beams

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EP3263788B1 EP3263788B1 (en) 2022-04-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109853738A (en) * 2019-01-25 2019-06-07 彭增鑫 A kind of connection method of wood component

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2604868A1 (en) * 2011-12-13 2013-06-19 Wiehag Holding GmbH Method and device for connecting components

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4280686A (en) * 1979-10-25 1981-07-28 Wack David T Rail end mounting bracket
DE29610381U1 (en) * 1996-06-13 1996-09-05 Bulldog-Simpson GmbH, 28857 Syke Connector for the frontal connection of a beam to a component

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2604868A1 (en) * 2011-12-13 2013-06-19 Wiehag Holding GmbH Method and device for connecting components

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109853738A (en) * 2019-01-25 2019-06-07 彭增鑫 A kind of connection method of wood component

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PL3263788T3 (en) 2022-09-12
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