EP1643045B1 - Invisible beam connector - Google Patents

Invisible beam connector Download PDF

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Publication number
EP1643045B1
EP1643045B1 EP05019821A EP05019821A EP1643045B1 EP 1643045 B1 EP1643045 B1 EP 1643045B1 EP 05019821 A EP05019821 A EP 05019821A EP 05019821 A EP05019821 A EP 05019821A EP 1643045 B1 EP1643045 B1 EP 1643045B1
Authority
EP
European Patent Office
Prior art keywords
undercuts
element according
joining element
metal
holes
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
Application number
EP05019821A
Other languages
German (de)
French (fr)
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EP1643045A3 (en
EP1643045A2 (en
Inventor
Siegfried Humm
Günther Blesch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BB-Baubeschlag Produktions-& Handels GmbH
Original Assignee
BB-Baubeschlag Produktions-& Handels GmbH
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Publication of EP1643045A2 publication Critical patent/EP1643045A2/en
Publication of EP1643045A3 publication Critical patent/EP1643045A3/en
Application granted granted Critical
Publication of EP1643045B1 publication Critical patent/EP1643045B1/en
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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
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements

Definitions

  • the invention relates to a connecting element, with which one can connect two components together, preferably invisible.
  • the connecting element is intended for connecting two wooden beams.
  • the invention is based on the object to provide a connecting element for connecting two components, which can be produced with little effort and cost.
  • the invention proposes a connecting element with the features mentioned in claim 1. Further developments of the invention are the subject of dependent claims.
  • the connecting element according to the invention can be produced very simply and inexpensively.
  • the two parts namely the lower part and the upper part, can be punched out of a metal sheet.
  • the undercuts can be formed.
  • the formation of the undercuts may be carried out partly in a work operation with the punching out of the sheet metal material. This results in a connecting element which has the same properties and advantages of known connecting elements, but can be produced significantly cheaper.
  • the lower part has two opposing undercuts, which can also be referred to as outwardly directed undercuts.
  • the upper part has the corresponding inverted undercuts, that is, two mutually facing or in other words inwardly directed undercuts.
  • At least one inwardly directed undercut is formed by bending over an edge of a sheet metal blank. By bending it should be understood that the edge is bent over more than 90 °.
  • both inwardly directed undercuts are formed by bending the opposite edges of the sheet metal blank.
  • At least one outwardly directed undercut is formed by punching out a lug which remains connected to the sheet metal blank and forms a projection.
  • both outwardly directed undercuts are formed in this way.
  • At least one tab remains connected to the sheet metal blank at the side of the blank facing the outer edge of the sheet.
  • the corresponding flap is bent more than 90 °.
  • At least one tab remains connected to the sheet metal blank at the side of the blanking cut away from the outer edge of the sheet metal blank.
  • the flap does not need to be bent by more than 90 °, but it is sufficientnesskröpfen him if the cloth is to form an outwardly directed undercut.
  • At least one outwardly directed undercut to be formed by bending over an edge of the sheet metal blank of the lower part.
  • punched tabs to form undercuts has the advantage that a larger sheet metal plate can be used which provides more space for attachment to the corresponding component.
  • connecting element to be fastened by screws to the respective components, so it may have in training holes for screwing. These holes can be produced by punching in the production of the two fittings.
  • the connecting element proposed by the invention is intended in particular for connecting wooden beams.
  • the upper part is usually screwed to the end face of a wooden beam. It is known that screws screwed into end grain only hold poorly. Therefore, the invention proposes to attach the holes of the upper part in obliquely punched-out rag.
  • the Austanzungen can be made so that the lobes thus formed remain connected to the fitting in the area of the later top. The inclination can be performed as required.
  • the holes of the upper part can be arranged in two rows, which are perpendicular in the mounting position. It can be provided in particular that the holes of both rows are offset from one another by half a vertical hole spacing. As a result, a sufficient number of holes and thus screws can be accommodated on the relatively narrow space between the inwardly directed undercuts.
  • each part that is the upper part and the lower part, diverging to two Lines are lying. This achieves a wedge effect in addition to the stipulations made by the undercuts.
  • the undercuts can be formed by individual projections, which can then lie on the mentioned divergent lines.
  • a stop can be provided between the two parts forming the connection fitting, which stop can also be formed by bending during manufacture from sheet metal. This can ensure that even with occurring tolerances always a correct alignment of the two parts to be fastened is achieved.
  • the proposed by the invention connecting element consists of two fitting parts, namely in the FIGS. 1 to 3 illustrated lower part and in the FIGS. 4 to 6 illustrated upper part.
  • the lower part whose front in FIG. 1 is shown, is made of a sheet metal blank, which has the shape of a rectangle in the illustrated example.
  • the plate element of the sheet metal blank contains a number of holes 1, through which the lower part is screwed or nailed to a first component.
  • the orientation is chosen so that the in FIG. 1 to be seen orientation of the actual orientation corresponds. What in FIG. 1 is up, is also at the top of the assembly.
  • the plate element contains two rows of Austanzmaschine 2, which are formed so that a separation of the sheet metal blank long on three sides of a rectangle.
  • Both rows of Austanzungen 2 are each on a line extending obliquely with respect to the longitudinal axis of the sheet metal blank, the lines of both rows of Austanzungen 2 diverge.
  • the remaining between the punching lines sheet material is pressed as a rag from the back 3 of the sheet metal blank forward and then bent. This creates hook-shaped tabs 4, see FIG. 2 which form an undercut 6 between itself and the front of the lower part 5.
  • the undercuts of the two rows of Austanzoder 2 are facing away from each other, or in other words, are directed outwards, that is in the direction of the adjacent longitudinal edge 7 of the lower part 5.
  • This undercut 6 in FIG. 3 see a side view of the base from the left in FIG. 1 represents.
  • the holes 1 for screwing the lower part are outside of the lobes 4, which form opposite the front face 8 of the lower part 5 projections.
  • the second fitting part namely the upper part is in the FIGS. 4 to 6 shown.
  • FIG. 6 shows the top from the back.
  • the upper part is made of a piece of sheet metal, which has the shape of a trapezoid in the initial state. Both longitudinal edges 10 are bent over the entire length of the upper part 11 by 180 degrees, so that on the inside of the longitudinal edges 10 each have an undercut 12 is formed, whose width corresponds to the thickness of the sheet material of the lower part 5.
  • FIG. 4 shows only two such holes 13.
  • the flaps 14 surrounded by the punching lines 15 on three sides of a rectangle are bent inward, that is, the front of the upper 11, at an angle of about 30 degrees, see the longitudinal section of FIG. 6 , As a result, the axis of the holes 13 extends obliquely to the rear side 16 of the upper part 11.
  • the upper part 11 is inserted with its rear side in a recess of the end of a beam and screwed there.
  • the screws are lost then obliquely to the longitudinal axis of the beam and thus obliquely to the fibrillation of the wood so that they hold better there.
  • the upper part can be connected from above to the lower part 5 in that the undercuts 12 of the upper part engage behind the undercuts 6 of the lower part. Due to the divergent course of the undercuts 6 of the lower part 5 and the undercuts 12 of the upper part 11, the pushing from above is possible. Once all undercuts abut each other, the attachment is done.
  • the lower part 5 in the region of its lower edge on a right-angled forward turn 40, which forms a stop.
  • This turn 40 cooperates with the lower edge 41 of the upper part 16.
  • the bend 40 corresponds in the opposite upper edge of the lower part 5, a recess 42 which is intended to ensure that no waste produced during punching from a sheet.
  • the undercuts of the base are present on individual projections formed by tabs 4.
  • the undercuts of the upper part are formed on bent outer edges of the sheet metal blank. A reverse training or a combined training in the two types is also possible.
  • FIG. 7 shows the front view of a lower part 25 of a second embodiment.
  • the tabs 4 are formed by Austanzonne 22. While in the embodiment according to Figure 1 to 6 the tabs 2 remain connected to the outer edge 7 of the sheet metal blank of the lower part 5 facing side of the Austanzung 2 with the sheet metal blank, remain in the embodiment according to FIG. 7 the tabs 24 on the side facing away from the side edge 7 side of the Austanzung 22 with the sheet connected.
  • the tabs 24 are not bent to the front, but bent out and bent, the bend is optionally formed parallel to the front side 28 of the lower part, or at an angle of, for example, 30 degrees, as would be out FIG. 9 results.
  • the lower part of the FIG. 7 just as easy to produce as the lower part of the Figure 1 to 3 ,
  • FIG. 8 shows the associated top 21 this time from the front.
  • the openings 13 are arranged for screwing in the fastening screws in two rows, this time the holes 13 of the one row are offset from the holes 13 of the other row.
  • the offset is half the distance between two holes in a row.
  • Each hole 13 is arranged on a separate flap, which is this time surrounded by a circular-shaped Austanzung.
  • the flaps are bent out in the same manner as the flaps 14 of the embodiment FIGS. 4 to 6 ,
  • connection of the two fitting parts together is the same as in the embodiment of the FIGS. 1 to 6 ,
  • the upper part 21 is slid onto the lower part 25 from above, so that the bent-over edges 20 of the upper part 21 engage behind the bent-out tabs 24 of the lower part 25.
  • the result is in the partial section of FIG. 9 shown.
  • the bend of the tabs 24 need not be a parallel offset.
  • the bent edges 20 need not be bent exactly U-shaped. By appropriate design of the shapes and dimensions can be effected here a backlash-free connection.
  • a corresponding notch 43 may be present, so that the otherwise equally long sheet metal blanks are flush.
  • FIGS. 10 and 11 show the front view and the edge view of a lower part 35, which with the upper part 21 of the FIG. 8 or with the top of the FIGS. 4 to 6 can work together. While in the previous embodiments, the undercuts of the lower part were always formed by punched out lobes, so that outside of the undercuts on both sides is still room for mounting holes, in the lower part 35 of the FIGS. 10 and 11 the outwardly directed undercut 36 formed by a bend of the longitudinal edges 37 of the sheet metal blank.
  • the mounting holes 31 are therefore arranged in the region between the two undercuts.
  • the bend of the longitudinal edges 37 to form the undercut 36 is again parallel to the back 33 of the base 35 in the example shown, but this is only intended as an example. Of course, here would be a bend in the form of FIG. 9 possible.

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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)
  • Connection Of Plates (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Furniture Connections (AREA)

Abstract

The connecting plate comprises a lower part (5) with a flat rear side, and two undercuts on its front side which face away from each other. The plate has an upper part with a flat rear side with two undercuts which face each other which form a tongue-and-groove connection with the undercuts of the lower part. The under part and the upper part of made of sheet metal, and the undercuts are formed by bending and stamping.

Description

Die Erfindung betrifft ein Verbindungselement, mit dem man zwei Bauteile miteinander verbinden kann, vorzugsweise unsichtbar. Insbesondere ist das Verbindungselement zum Verbinden zweier Holzbalken gedacht.The invention relates to a connecting element, with which one can connect two components together, preferably invisible. In particular, the connecting element is intended for connecting two wooden beams.

Es ist bereits ein sogenannter Holzverbinder zum Verbinden zweier Balken bekannt ( DE 201 03 856 ). Dieser Holzverbinder besteht aus zwei plattenförmigen einstückigen Elementen, von denen das eine Element einen in Ansicht V- förmigen Vorsprung und das andere Element eine entsprechende V- förmige Vertiefung aufweist. Die Ränder des Vorsprungs und die Ränder der Vertiefung sind hinterschnitten. Dadurch ist zwischen beiden Bauteilen eine Nut-Feder- Verbindung gebildet. Beide Beschlagteile sind aus Metall hergestellt. Die Herstellung eines solchen Verbindungsbeschlages ist aufwändig und teuer.There is already known a so-called wood connector for connecting two beams ( DE 201 03 856 ). This wood connector consists of two plate-shaped one-piece elements, of which one element has a V-shaped projection in the view and the other element has a corresponding V-shaped recess. The edges of the projection and the edges of the recess are undercut. As a result, a tongue and groove connection is formed between the two components. Both fitting parts are made of metal. The production of such a connection fitting is complicated and expensive.

Eine ähnliche Steckverbindung ist aus AT 411 094 bekannt.A similar plug connection is off AT 411 094 known.

Weiterhin ist ein zweiteiliges Verbindungselement zum Verbinden von metallischen Strukturen bekannt ( GB 472391 ) Beide Teile sind aus Blech hergestellt, und die schwalbenschwanzartig ausgebildeten Hinterschnitte sind durch zweifaches Umbiegen des Blechs gebildet. Die Randkanten beider Teile verlaufen parallel zueinander.Furthermore, a two-part connecting element for connecting metallic structures is known (US Pat. GB 472391 ) Both parts are made of sheet metal, and the dovetailed undercuts are formed by bending the sheet twice. The marginal edges of both parts are parallel to each other.

Der Erfindung liegt die Aufgabe zu Grunde, ein Verbindungselement zum Verbinden zweier Bauteile zu schaffen, das sich mit geringem Aufwand und kostengünstig herstellen lässt.The invention is based on the object to provide a connecting element for connecting two components, which can be produced with little effort and cost.

Zur Lösung dieser Aufgabe schlägt die Erfindung ein Verbindungselement mit den im Anspruch 1 genannten Merkmalen vor. Weiterbildungen der Erfindung sind Gegenstand von Unteransprüchen.To solve this problem, the invention proposes a connecting element with the features mentioned in claim 1. Further developments of the invention are the subject of dependent claims.

Das Verbindungselement nach der Erfindung lässt sich sehr einfach und kostengünstig herstellen. Die beiden Teile, nämlich das Unterteil und das Oberteil, lassen sich aus einem Blech ausstanzen. Durch Biegen und/oder Stanzen lassen sich die Hinterschnitte bilden. Das Bilden der Hinterschnitte kann zum Teil in einem Arbeitsvorgang mit dem Ausstanzen aus dem Blechmaterial durchgeführt werden. Dadurch ergibt sich ein Verbindungselement, das die gleichen Eigenschaften und Vorteile bekannter Verbindungselemente aufweist, sich aber deutlich kostengünstiger herstellen lässt.The connecting element according to the invention can be produced very simply and inexpensively. The two parts, namely the lower part and the upper part, can be punched out of a metal sheet. By bending and / or punching, the undercuts can be formed. The formation of the undercuts may be carried out partly in a work operation with the punching out of the sheet metal material. This results in a connecting element which has the same properties and advantages of known connecting elements, but can be produced significantly cheaper.

Das Unterteil weist zwei voneinander abgewandte Hinterschnitte auf, die auch als nach außen gerichtete Hinterschnitte bezeichnet werden können. Das Oberteil weist die entsprechenden umgekehrten Hinterschnitte, das heißt zwei einander zugewandte oder anders ausgedrückt nach innen gerichtete Hinterschnitte auf.The lower part has two opposing undercuts, which can also be referred to as outwardly directed undercuts. The upper part has the corresponding inverted undercuts, that is, two mutually facing or in other words inwardly directed undercuts.

In Weiterbildung der Erfindung kann vorgesehen sein, dass mindestens ein nach innen gerichteter Hinterschnitt durch Umbiegen eines Randes eines Blechzuschnitts gebildet ist. Unter Umbiegen soll verstanden werden, dass der Rand um mehr als 90° umgebogenen wird.In a further development of the invention it can be provided that at least one inwardly directed undercut is formed by bending over an edge of a sheet metal blank. By bending it should be understood that the edge is bent over more than 90 °.

Vorzugsweise werden beide nach innen gerichtete Hinterschnitte durch Umbiegen der einander abgewandten Kanten des Blechzuschnitts gebildet.Preferably, both inwardly directed undercuts are formed by bending the opposite edges of the sheet metal blank.

In nochmaliger Weiterbildung der Erfindung kann vorgesehen sein, dass mindestens ein nach außen gerichteter Hinterschnitt durch Ausstanzen eines mit dem Blechzuschnitt verbunden bleibenden Lappens gebildet ist, der einen Vorsprung bildet.In a further development of the invention, it can be provided that at least one outwardly directed undercut is formed by punching out a lug which remains connected to the sheet metal blank and forms a projection.

Vorzugsweise werden beide nach außen gerichtete Hinterschnitte auf diese Weise gebildet.Preferably, both outwardly directed undercuts are formed in this way.

Es kann vorgesehen sein, dass mindestens ein Lappen an der der Au-ßenkante des Blechs zugewandten Seite der Austanzung mit dem Blechzuschnitt verbunden bleibt. In diesem Fall erfolgt ein Umbiegen des entsprechenden Lappens um mehr als 90°.It can be provided that at least one tab remains connected to the sheet metal blank at the side of the blank facing the outer edge of the sheet. In this case, the corresponding flap is bent more than 90 °.

Es ist aber ebenfalls möglich und liegt im Rahmen der Erfindung, dass mindestens ein Lappen an der von der Außenkante des Blechzuschnitts abgewandten Seite der Austanzung mit dem Blechzuschnitt verbunden bleibt. In diesem Fall braucht der Lappen nicht um mehr als 90° umgebogen zu werden, sondern es reicht aus, ihn abzukröpfen, falls der Lappen einen nach außen gerichteten Hinterschnitt bilden soll.However, it is also possible and within the scope of the invention that at least one tab remains connected to the sheet metal blank at the side of the blanking cut away from the outer edge of the sheet metal blank. In this case, the flap does not need to be bent by more than 90 °, but it is sufficient abzukröpfen him if the cloth is to form an outwardly directed undercut.

In nochmaliger Weiterbildung der Erfindung kann vorgesehen sein, dass mehrere Austanzungen zur Bildung mehrerer Vorsprünge vorhanden sind.In a further development of the invention can be provided that several Austanzungen to form a plurality of projections are present.

Es ist auch möglich, dass mindestens ein nach außen gerichteter Hinterschnitt durch Abkröpfung eines Rands des Blechzuschnitts des Unterteils gebildet ist.It is also possible for at least one outwardly directed undercut to be formed by bending over an edge of the sheet metal blank of the lower part.

Die Verwendung von ausgestanzten Lappen zur Bildung von Hinterschnitten hat den Vorteil, dass eine größere Blechplatte verwendet werden kann, die mehr Platz zur Befestigung an dem entsprechenden Bauteil bietet.The use of punched tabs to form undercuts has the advantage that a larger sheet metal plate can be used which provides more space for attachment to the corresponding component.

Wenn das von der Erfindung vorgeschlagene Verbindungselement durch Schrauben an dem jeweiligen Bauteile befestigt werden soll, so kann es in Weiterbildung Löcher zum Anschrauben aufweisen. Diese Löcher lassen sich bei der Herstellung der beiden Beschlagteile durch Stanzen mit herstellen.If the proposed by the invention connecting element to be fastened by screws to the respective components, so it may have in training holes for screwing. These holes can be produced by punching in the production of the two fittings.

Es wurde bereits erwähnt, dass das von der Erfindung vorgeschlagene Verbindungselement insbesondere zum Verbinden von Holzbalken dienen soll. Dabei wird das Oberteil in der Regel an der Stirnfläche eines Holzbalkens angeschraubt. Es ist bekannt, dass in Hirnholz eingeschraubte Schrauben nur schlecht halten. Daher schlägt die Erfindung vor, die Löcher des Oberteils in schräg gestellten ausgestanzten Lappen anzubringen. Die Austanzungen können so gemacht werden, dass die dadurch gebildeten Lappen im Bereich der späteren Oberseite mit dem Beschlagteil verbunden bleiben. Die Schrägstellung kann je nach Erfordernis durchgeführt werden.It has already been mentioned that the connecting element proposed by the invention is intended in particular for connecting wooden beams. The upper part is usually screwed to the end face of a wooden beam. It is known that screws screwed into end grain only hold poorly. Therefore, the invention proposes to attach the holes of the upper part in obliquely punched-out rag. The Austanzungen can be made so that the lobes thus formed remain connected to the fitting in the area of the later top. The inclination can be performed as required.

Um eine sichere Befestigung zu ermöglichen, können die Löcher des Oberteils in zwei Reihen angeordnet werden, die in Montagenposition senkrecht verlaufen. Dabei kann insbesondere vorgesehen sein, dass die Löcher beider Reihen um einen halben vertikalen Lochabstand zueinander versetzt sind. Dadurch lassen sich auf dem relativ engen Raum zwischen den nach innen gerichteten Hinterschnitten eine ausreichende Zahl von Löchern und damit Schrauben unterbringen.In order to allow a secure attachment, the holes of the upper part can be arranged in two rows, which are perpendicular in the mounting position. It can be provided in particular that the holes of both rows are offset from one another by half a vertical hole spacing. As a result, a sufficient number of holes and thus screws can be accommodated on the relatively narrow space between the inwardly directed undercuts.

Erfindungsgemäß kann vorgesehen sein, dass die Hinterschnitte jedes Teils, das heißt des Oberteils und des Unterteils, auf zwei divergierenden Linien liegen. Dadurch wird eine Keilwirkung zusätzlich zu den durch die Hinterschnitte bewirkten Festlegungen erreicht.According to the invention it can be provided that the undercuts of each part, that is the upper part and the lower part, diverging to two Lines are lying. This achieves a wedge effect in addition to the stipulations made by the undercuts.

Erfindungsgemäß können die Hinterschnitte von einzelnen Vorsprüngen gebildet werden, die dann auf den erwähnten divergierenden Linien liegen können.According to the invention, the undercuts can be formed by individual projections, which can then lie on the mentioned divergent lines.

Erfindungsgemäß kann zwischen beiden den Verbindungsbeschlag bildenden Teilen ein Anschlag vorgesehen sein, der sich ebenfalls beim Herstellen aus Blech durch Umbiegen bilden lässt. Dadurch kann sichergestellt werden, dass auch bei auftretenden Toleranzen immer eine korrekte Ausrichtung der beiden zu befestigenden Teile erreicht wird.According to the invention, a stop can be provided between the two parts forming the connection fitting, which stop can also be formed by bending during manufacture from sheet metal. This can ensure that even with occurring tolerances always a correct alignment of the two parts to be fastened is achieved.

Weitere Merkmale, Einzelheiten und Vorzüge der Erfindung ergeben sich aus den Ansprüchen und der Zusammenfassung, deren beider Wortlaut durch Bezugnahme zum Inhalt der Beschreibung gemacht wird, der folgenden Beschreibung einer bevorzugten Ausführungsform der Erfindung sowie anhand der Zeichnung. Hierbei zeigen:

Figur 1
die Ansicht eines Unterteils eines Verbindungselements nach einer ersten Ausführungsform;
Figur 2
eine Ansicht des Unterteils der Figur 1 von unten in Figur 1;
Figur 3
die Seitenansicht des Unterteils der Figur 1 von links in Figur 1;
Figur 4
die Draufsicht auf die Rückseite des zugehörigen Oberteils;
Figur 5
die Ansicht des Oberteils der Figur 4 von links in Figur 4;
Figur 6
einen Längsschnitt durch das Oberteil der Figur 4;
Figur 7
eine der Figur 1 entsprechende Darstellung des Unterteils bei einer zweiten Ausführungsform;
Figur 8
eine der Figur 4 entsprechende Darstellung des Oberteils der Ausführungsform nach Figur von der Vorderseite;
Figur 9
eine schematische Darstellung durch die Art der Verbindung zwischen Oberteil und Unterteil;
Figur 10
eine der Figur 7 entsprechende Darstellung eines Unterteils;
Figur 11
die Stirnansicht des Unterteils der Figur 10.
Further features, details and advantages of the invention will become apparent from the claims and abstract, the wording of which is incorporated by reference into the content of the description, the following description of a preferred embodiment of the invention and from the drawing. Hereby show:
FIG. 1
the view of a lower part of a connecting element according to a first embodiment;
FIG. 2
a view of the lower part of the FIG. 1 from the bottom in FIG. 1 ;
FIG. 3
the side view of the lower part of the FIG. 1 from the left in FIG. 1 ;
FIG. 4
the top view of the back of the associated upper part;
FIG. 5
the view of the top of the FIG. 4 from the left in FIG. 4 ;
FIG. 6
a longitudinal section through the upper part of FIG. 4 ;
FIG. 7
one of the FIG. 1 corresponding representation of the lower part in a second embodiment;
FIG. 8
one of the FIG. 4 corresponding representation of the upper part of the embodiment of Figure from the front;
FIG. 9
a schematic representation of the type of connection between the upper part and lower part;
FIG. 10
one of the FIG. 7 corresponding representation of a lower part;
FIG. 11
the front view of the lower part of the FIG. 10 ,

Das von der Erfindung vorgeschlagene Verbindungselement besteht aus zwei Beschlagteilen, nämlich dem in den Figuren 1 bis 3 dargestellten Unterteil und dem in den Figuren 4 bis 6 dargestellten Oberteil. Das Unterteil, dessen Vorderseite in Figur 1 dargestellt ist, ist aus einem Blechzuschnitt hergestellt, der im dargestellten Beispiel die Form eines Rechtecks aufweist. Das Plattenelement des Blechzuschnitts enthält einige Löcher 1, durch die hindurch das Unterteil an einem ersten Bauteil festgeschraubt oder festgenagelt wird. Die Orientierung wird dabei so gewählt, dass die in Figur 1 zu sehende Orientierung der tatsächlichen Orientierung entspricht. Was in Figur 1 oben ist, ist auch bei der Montage oben. Das Plattenelement enthält zwei Reihen von Austanzungen 2, die so gebildet sind, dass eine Auftrennung des Blechzuschnitts längst dreier Seiten eines Rechtecks erfolgt. Beide Reihen von Austanzungen 2 liegen jeweils auf einer schräg gegenüber der Längsachse des Blechzuschnitts verlaufenden Linie, wobei die Linien beider Reihen von Austanzungen 2 divergieren. Das zwischen den Stanzlinien verbleibende Blechmaterial wird als Lappen von der Rückseite 3 des Blechzuschnitts nach vorne heraus gedrückt und dann umgebogen. Dadurch entstehen hakenförmige Lappen 4, siehe Figur 2, die zwischen sich und der Vorderseite des Unterteils 5 einen Hinterschnitt 6 bilden. Die Hinterschnitte der beiden Reihen von Austanzungen 2 sind voneinander abgewandt, oder anders ausgedrückt, sind nach außen gerichtet, das heißt in Richtung auf die benachbarte Längskante 7 des Unterteils 5. Man kann diesen Hinterschnitt 6 auch in Figur 3 sehen, die eine Seitenansicht des Unterteils von links in Figur 1 darstellt. Die Löcher 1 zum Anschrauben des Unterteils liegen außerhalb der Lappen 4, die gegenüber der Vorderfront 8 des Unterteils 5 Vorsprünge bilden. Bei der Montage wird das Unterteil versenkt befestigt, in einer Vertiefung, die der Dicke des Blechzuschnitts entspricht.The proposed by the invention connecting element consists of two fitting parts, namely in the FIGS. 1 to 3 illustrated lower part and in the FIGS. 4 to 6 illustrated upper part. The lower part, whose front in FIG. 1 is shown, is made of a sheet metal blank, which has the shape of a rectangle in the illustrated example. The plate element of the sheet metal blank contains a number of holes 1, through which the lower part is screwed or nailed to a first component. The orientation is chosen so that the in FIG. 1 to be seen orientation of the actual orientation corresponds. What in FIG. 1 is up, is also at the top of the assembly. The plate element contains two rows of Austanzungen 2, which are formed so that a separation of the sheet metal blank long on three sides of a rectangle. Both rows of Austanzungen 2 are each on a line extending obliquely with respect to the longitudinal axis of the sheet metal blank, the lines of both rows of Austanzungen 2 diverge. The remaining between the punching lines sheet material is pressed as a rag from the back 3 of the sheet metal blank forward and then bent. This creates hook-shaped tabs 4, see FIG. 2 which form an undercut 6 between itself and the front of the lower part 5. The undercuts of the two rows of Austanzungen 2 are facing away from each other, or in other words, are directed outwards, that is in the direction of the adjacent longitudinal edge 7 of the lower part 5. One can see this undercut 6 in FIG. 3 see a side view of the base from the left in FIG. 1 represents. The holes 1 for screwing the lower part are outside of the lobes 4, which form opposite the front face 8 of the lower part 5 projections. When mounting the lower part is sunk in a recess, which corresponds to the thickness of the sheet metal blank.

Das zweite Beschlagteil, nämlich das Oberteil, ist in den Figuren 4 bis 6 dargestellt. Figur 6 zeigt das Oberteil von der Rückseite her. Auch das Oberteil ist aus einem Stück Blech hergestellt, das im Ausgangszustand die Form eines Trapezes aufweist. Beide Längsränder 10 sind über die gesamte Länge des Oberteils 11 um 180 Grad umgebogen, so dass auf der Innenseite der Längsränder 10 jeweils ein Hinterschnitt 12 gebildet ist, dessen Breite der Dicke des Blechmaterials des Unterteils 5 entspricht.The second fitting part, namely the upper part is in the FIGS. 4 to 6 shown. FIG. 6 shows the top from the back. Also, the upper part is made of a piece of sheet metal, which has the shape of a trapezoid in the initial state. Both longitudinal edges 10 are bent over the entire length of the upper part 11 by 180 degrees, so that on the inside of the longitudinal edges 10 each have an undercut 12 is formed, whose width corresponds to the thickness of the sheet material of the lower part 5.

Im Bereich zwischen den Hinterschnitten 12 sind im Oberteil 11 Befestigungslöcher 13 ausgebildet, die innerhalb von ausgestanzten Lappen 14 liegen. Die Figur 4 zeigt nur zwei solcher Löcher 13. Die von den Ausstanzlinien 15 auf drei Seiten eines Rechtecks umgebenen Lappen 14 werden nach innen, das heißt der Vorderseite des Oberteils 11, um einen Winkel von etwa 30 Grad heraus gebogen, siehe den Längsschnitt der Figur 6. Dadurch verläuft die Achse der Löcher 13 schräg zur Rückseite 16 des Oberteils 11.In the area between the undercuts 12 11 mounting holes 13 are formed in the upper part, which lie within punched-out lobes 14. The FIG. 4 shows only two such holes 13. The flaps 14 surrounded by the punching lines 15 on three sides of a rectangle are bent inward, that is, the front of the upper 11, at an angle of about 30 degrees, see the longitudinal section of FIG. 6 , As a result, the axis of the holes 13 extends obliquely to the rear side 16 of the upper part 11.

Das Oberteil 11 wird mit seiner Rückseite in einer Vertiefung des Endes eines Balkens eingelegt und dort festgeschraubt. Die Schrauben verlaufen dann schräg zur Längsachse des Balkens und damit auch schräg zu der Faserung des Holzes, so dass sie dort besser halten.The upper part 11 is inserted with its rear side in a recess of the end of a beam and screwed there. The screws are lost then obliquely to the longitudinal axis of the beam and thus obliquely to the fibrillation of the wood so that they hold better there.

Das Oberteil kann von oben mit dem Unterteil 5 dadurch verbunden werden, dass die Hinterschnitte 12 des Oberteils hinter die Hinterschnitte 6 des Unterteils greifen. Auf Grund des divergierenden Verlaufs der Hinterschnitte 6 des Unterteils 5 und der Hinterschnitte 12 des Oberteils 11 ist das Aufschieben von oben möglich. Sobald alle Hinterschnitte aneinander anliegen, ist die Befestigung erfolgt.The upper part can be connected from above to the lower part 5 in that the undercuts 12 of the upper part engage behind the undercuts 6 of the lower part. Due to the divergent course of the undercuts 6 of the lower part 5 and the undercuts 12 of the upper part 11, the pushing from above is possible. Once all undercuts abut each other, the attachment is done.

Um sicherzustellen, dass die korrekte Anordnung auch bei auftretenden Toleranzen eingehalten wird, weist das Unterteil 5 im Bereich seiner Unterkante eine rechtwinklige nach vorne gerichtete Abbiegung 40 auf, die einen Anschlag bildet. Diese Abbiegung 40 wirkt mit der Unterkante 41 des Oberteils 16 zusammen. Der Abbiegung 40 entspricht in der gegenüberliegenden Oberkante des Unterteils 5 eine Aussparung 42, die dafür sorgen soll, dass kein Verschnitt beim Ausstanzen aus einem Blech entsteht.To ensure that the correct arrangement is maintained even when occurring tolerances, the lower part 5 in the region of its lower edge on a right-angled forward turn 40, which forms a stop. This turn 40 cooperates with the lower edge 41 of the upper part 16. The bend 40 corresponds in the opposite upper edge of the lower part 5, a recess 42 which is intended to ensure that no waste produced during punching from a sheet.

Bei der dargestellten Ausführungsform sind die Hinterschnitte des Unterteils an einzelnen durch Lappen 4 gebildeten Vorsprüngen vorhanden. Die Hinterschnitte des Oberteils sind an umgebogenen Außenrändern des Blechzuschnitts gebildet. Eine umgekehrte Ausbildung oder eine kombinierte Ausbildung bei der beiden Arten ist auch möglich.In the illustrated embodiment, the undercuts of the base are present on individual projections formed by tabs 4. The undercuts of the upper part are formed on bent outer edges of the sheet metal blank. A reverse training or a combined training in the two types is also possible.

Figur 7 zeigt die Vorderansicht eines Unterteils 25 einer zweiten Ausführungsform. Wieder sind die Lappen 4 durch Austanzungen 22 gebildet. Während bei der Ausführungsform nach Figur 1 bis 6 die Lappen 2 an der der Außenkante 7 des Blechzuschnitts des Unterteils 5 zugewandten Seite der Austanzung 2 mit dem Blechzuschnitt verbunden bleiben, bleiben bei der Ausführungsform nach Figur 7 die Lappen 24 an der von der Seitenkante 7 abgewandten Seite der Austanzung 22 mit dem Blech verbunden. Die Lappen 24 werden zur Vorderseite hin nicht umgebogen, sondern heraus gebogen und abgekröpft, wobei die Abkröpfung gegebenenfalls parallel zu der Vorderseite 28 des Unterteils ausgebildet ist, oder aber unter einem Winkel von beispielsweise 30 Grad, wie sich dies aus Figur 9 ergibt. Im Übrigen lässt sich das Unterteil der Figur 7 genauso einfach herstellen wie das Unterteil der Figur 1 bis 3. FIG. 7 shows the front view of a lower part 25 of a second embodiment. Again, the tabs 4 are formed by Austanzungen 22. While in the embodiment according to Figure 1 to 6 the tabs 2 remain connected to the outer edge 7 of the sheet metal blank of the lower part 5 facing side of the Austanzung 2 with the sheet metal blank, remain in the embodiment according to FIG. 7 the tabs 24 on the side facing away from the side edge 7 side of the Austanzung 22 with the sheet connected. The tabs 24 are not bent to the front, but bent out and bent, the bend is optionally formed parallel to the front side 28 of the lower part, or at an angle of, for example, 30 degrees, as would be out FIG. 9 results. Incidentally, the lower part of the FIG. 7 just as easy to produce as the lower part of the Figure 1 to 3 ,

Figur 8 zeigt das zugehörige Oberteil 21 diesmal von der Vorderseite her. Wiederum sind die Öffnungen 13 zum Einschrauben der Befestigungsschrauben in zwei Reihen angeordnet, wobei diesmal die Löcher 13 der einen Reihe gegenüber den Löchern 13 der anderen Reihe versetzt angeordnet sind. Die Versetzung beträgt den halben Abstand zweier Löcher einer Reihe. Jedes Loch 13 ist auf einem eigenen Lappen angeordnet, der diesmal von einer kreisbogenförmigen Austanzung umgeben ist. Die Lappen werden in der gleichen Weise heraus gebogen wie die Lappen 14 der Ausführungsform nach Figur 4 bis 6. FIG. 8 shows the associated top 21 this time from the front. Again, the openings 13 are arranged for screwing in the fastening screws in two rows, this time the holes 13 of the one row are offset from the holes 13 of the other row. The offset is half the distance between two holes in a row. Each hole 13 is arranged on a separate flap, which is this time surrounded by a circular-shaped Austanzung. The flaps are bent out in the same manner as the flaps 14 of the embodiment FIGS. 4 to 6 ,

Die Verbindung der beiden Beschlagteile miteinander geschieht genauso wie bei der Ausführungsform nach den Figuren 1 bis 6. Das Oberteil 21 wird von oben auf das Unterteil 25 aufgeschoben, so dass die umgebogenen Ränder 20 des Oberteils 21 hinter die heraus gebogenen Lappen 24 des Unterteils 25 greifen. Das Ergebnis ist in dem Teilschnitt der Figur 9 dargestellt. Man kann hier auch sehen, dass die Abkröpfung der Lappen 24 keine Parallelversetzung zu sein braucht. Auch die umgebogenen Ränder 20 müssen nicht exakt U-förmig umgebogen sein. Durch entsprechende Gestaltung der Formen und Abmessungen kann hier eine spielfreie Verbindung bewirkt werden.The connection of the two fitting parts together is the same as in the embodiment of the FIGS. 1 to 6 , The upper part 21 is slid onto the lower part 25 from above, so that the bent-over edges 20 of the upper part 21 engage behind the bent-out tabs 24 of the lower part 25. The result is in the partial section of FIG. 9 shown. One can also see here that the bend of the tabs 24 need not be a parallel offset. The bent edges 20 need not be bent exactly U-shaped. By appropriate design of the shapes and dimensions can be effected here a backlash-free connection.

Bei der Ausführungsform nach Figur 7 folgende ist ebenfalls ein Anschlag vorhanden. In der Unterkante des Oberteils 21 kann eine entsprechende Einkerbung 43 vorhanden sein, damit die ansonsten gleich langen Blechzuschnitte bündig verlaufen.In the embodiment according to FIG. 7 following is also a stop available. In the lower edge of the upper part 21, a corresponding notch 43 may be present, so that the otherwise equally long sheet metal blanks are flush.

Es wurde bereits erwähnt, dass die Art der Bildung des Hinterschnitts auch anders gewählt werden kann, als dies bei den Ausführungsformen nach den Figuren 1 bis 8 dargestellt ist. Ein weiteres Beispiel, wie ein Hinterschnitt gebildet werden kann, ist in den Figuren 10 und 11 dargestellt. Die Figuren 10 und 11 zeigen die Vorderansicht und die Kantenansicht eines Unterteils 35, das mit dem Oberteil 21 der Figur 8 oder auch mit dem Oberteil der Figuren 4 bis 6 zusammen wirken kann. Während bei den bisherigen Ausführungsformen die Hinterschnitte des Unterteils immer durch heraus gestanzte Lappen gebildet wurden, so dass außerhalb der Hinterschnitte beidseits noch Platz für Befestigungslöcher ist, ist bei dem Unterteil 35 der Figur 10 und 11 der nach außen gerichtete Hinterschnitt 36 durch eine Abkröpfung der Längsränder 37 des Blechzuschnitts gebildet. Die Befestigungslöcher 31 sind daher im Bereich zwischen den beiden Hinterschnitten angeordnet. Die Abkröpfung der Längsränder 37 zur Bildung des Hinterschnitts 36 ist im dargestellten Beispiel wieder parallel zu der Rückseite 33 des Unterteils 35, was aber nur als Beispiel gedacht ist. Selbstverständlich wäre auch hier eine Abkröpfung in der Form der Figur 9 möglich.It has already been mentioned that the type of formation of the undercut can also be chosen differently than in the embodiments according to FIGS FIGS. 1 to 8 is shown. Another example of how an undercut can be formed is in the FIGS. 10 and 11 shown. The FIGS. 10 and 11 show the front view and the edge view of a lower part 35, which with the upper part 21 of the FIG. 8 or with the top of the FIGS. 4 to 6 can work together. While in the previous embodiments, the undercuts of the lower part were always formed by punched out lobes, so that outside of the undercuts on both sides is still room for mounting holes, in the lower part 35 of the FIGS. 10 and 11 the outwardly directed undercut 36 formed by a bend of the longitudinal edges 37 of the sheet metal blank. The mounting holes 31 are therefore arranged in the region between the two undercuts. The bend of the longitudinal edges 37 to form the undercut 36 is again parallel to the back 33 of the base 35 in the example shown, but this is only intended as an example. Of course, here would be a bend in the form of FIG. 9 possible.

Claims (14)

  1. A joining element for connecting two components, in particular wooden beams, with
    1.1 a bottom part (5, 25, 35) featuring a flat rear side (3, 33), which bottom part
    1.2 features on its front side two undercuts (6, 26, 36) facing away from one another, as well as
    1.3 a top part (11, 21) featuring a flat rear side (16, 26), which top part
    1.4 features on its front side two undercuts (12) facing one another, which
    1.5 form a tongue and groove connection with the undercuts (6, 26, 36) of the bottom part (5, 25, 35), wherein
    1.6 the bottom part (5, 25. 35) and/or the top part (11, 21) are made of sheet metal and
    1.7 the undercuts (6, 26, 36, 12) are made by bending and punching,
    characterised in that
    1.8 one of the two undercuts (12) facing one another is oriented inwards and is formed by bending over of an edge (10, 20) of a metal-sheet blank.
  2. The joining element according to Claim 1, wherein both undercuts (12) oriented inwards are formed by bending-over the edges (10, 20) of the metal-sheet blank facing away from one another.
  3. The joining element according to Claim 1 or 2, wherein at least one undercut (6, 26, 36) oriented outwards is formed by punching out a tongue (4, 24) that remains connected with the metal-sheet blank, which tongue forms a projection.
  4. The joining element according to Claim 3, wherein at least one tongue (4) remains connected with the metal-sheet blank on the side of the perforation (2) facing the outer edge (7) of the metal-sheet blank.
  5. The joining element according to Claim 3 or 4, wherein at least one tongue (24) on the side of the perforation (22) facing away from the outer edge (7) of the metal-sheet blank remains connected with the metal-sheet blank.
  6. The joining element according to one of Claims 3 to 5, wherein several punch outs (2, 22) are provided for the formation of several tongues (4, 24) or projections.
  7. The joining element according to one of the preceding Claims, wherein at least one undercut (36) oriented outwards is formed by offset bending an edge (37) of the metal-sheet blank of the bottom part (35).
  8. The joining element according to one of the preceding Claims, wherein the bottom part (5, 25, 35) and/or the top part (11, 21) feature(s) holes (1, 13) for screwing on the corresponding component part.
  9. The joining element according to Claim 8, wherein the holes (13) of the top part (11, 21) are disposed in an inclined punched out tongue (14).
  10. The joining element according to Claim 8 or 9, wherein the holes (13) are disposed in two rows.
  11. The joining element according to Claim 10, wherein the holes (13), of both rows of holes (13), are offset by half the spacing of adjacent holes (13) of a row.
  12. The joining element according to one of the preceding Claims, wherein the undercuts (6, 26, 36, 12) of each part lie on two diverging lines.
  13. The joining element according to one of the preceding Claims, wherein the undercuts (6, 26) are formed of individual projections.
  14. The joining element according to one of the preceding Claims, with a limit stop that ensures the correct engagement position of both parts.
EP05019821A 2004-09-29 2005-09-13 Invisible beam connector Not-in-force EP1643045B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004048034A DE102004048034A1 (en) 2004-09-29 2004-09-29 Connecting plate for joining two timber beams, has undercuts formed by stamping and bending sheet metal, which form tongue-and-groove connection between upper and lower parts

Publications (3)

Publication Number Publication Date
EP1643045A2 EP1643045A2 (en) 2006-04-05
EP1643045A3 EP1643045A3 (en) 2006-11-22
EP1643045B1 true EP1643045B1 (en) 2009-09-02

Family

ID=35466522

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05019821A Not-in-force EP1643045B1 (en) 2004-09-29 2005-09-13 Invisible beam connector

Country Status (4)

Country Link
EP (1) EP1643045B1 (en)
AT (1) ATE441762T1 (en)
DE (2) DE102004048034A1 (en)
ES (1) ES2331917T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007043562A1 (en) * 2007-09-13 2009-03-26 Vierck, Udo, Dipl.-Architekt.-Ing Building e.g. movable building, construction for e.g. exhibition, has primary construction designed as frame and secondary construction designed as infill, where construction is assembled and dismantled in perpendicular direction
DE102016225444A1 (en) * 2016-12-19 2018-06-21 Robert Bosch Gmbh Improved media distribution in fuel cell stacks

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB472391A (en) * 1937-02-23 1937-09-23 Bernard James Gibbs Improvements in or relating to means for joining the members in metallic structures
FR2190988A1 (en) * 1972-06-29 1974-02-01 Omnium Techniqu Oth
DE4313895A1 (en) * 1993-04-28 1994-11-03 Reinhard Tweer Gmbh Bearing-member connection
DE29709440U1 (en) * 1997-05-29 1997-07-24 Gebr. Loewen GmbH, 58553 Halver Beam connector
DE20103856U1 (en) * 2001-03-06 2001-06-21 BMF Holzverbinder GmbH, 24939 Flensburg Wooden connector for connecting two components, especially two beams

Also Published As

Publication number Publication date
EP1643045A3 (en) 2006-11-22
ATE441762T1 (en) 2009-09-15
ES2331917T3 (en) 2010-01-20
DE502005008035D1 (en) 2009-10-15
EP1643045A2 (en) 2006-04-05
DE102004048034A1 (en) 2006-03-30

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