EP3179026A1 - Corner connector for door or window hollow profiles - Google Patents

Corner connector for door or window hollow profiles Download PDF

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Publication number
EP3179026A1
EP3179026A1 EP16202836.9A EP16202836A EP3179026A1 EP 3179026 A1 EP3179026 A1 EP 3179026A1 EP 16202836 A EP16202836 A EP 16202836A EP 3179026 A1 EP3179026 A1 EP 3179026A1
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EP
European Patent Office
Prior art keywords
runners
corner connector
shaft
clamping wedge
wedge
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.)
Granted
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EP16202836.9A
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German (de)
French (fr)
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EP3179026B1 (en
Inventor
Hans Dieter Grotefeld
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Individual
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Individual
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Priority to PL16202836T priority Critical patent/PL3179026T3/en
Priority to SI201630083T priority patent/SI3179026T1/en
Publication of EP3179026A1 publication Critical patent/EP3179026A1/en
Application granted granted Critical
Publication of EP3179026B1 publication Critical patent/EP3179026B1/en
Priority to HRP20181295TT priority patent/HRP20181295T1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/96—Corner joints or edge joints for windows, doors, or the like frames or wings
    • E06B3/964—Corner joints or edge joints for windows, doors, or the like frames or wings using separate connection pieces, e.g. T-connection pieces
    • E06B3/968—Corner joints or edge joints for windows, doors, or the like frames or wings using separate connection pieces, e.g. T-connection pieces characterised by the way the connecting pieces are fixed in or on the frame members
    • E06B3/972—Corner joints or edge joints for windows, doors, or the like frames or wings using separate connection pieces, e.g. T-connection pieces characterised by the way the connecting pieces are fixed in or on the frame members by increasing the cross-section of the connecting pieces, e.g. by expanding the connecting pieces with wedges
    • E06B3/9725—Mitre joints
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/96—Corner joints or edge joints for windows, doors, or the like frames or wings
    • E06B3/9604—Welded or soldered joints
    • E06B3/9608—Mitre joints

Definitions

  • the present invention relates to a corner connector for door or window hollow sections according to the preamble of claim 1.
  • corner joints When connecting mitred hollow sections for door and window frames, in particular hollow profiles made of weldable plastic, so-called corner joints are inserted into the two colliding hollow sections, which have an entering into the hollow sections shank and one of the miter plane of the two hollow profiles corresponding oblique welding surface.
  • corner connectors By welding the two corner connectors, the connection of the hollow profiles obtains the desired rigidity and stability.
  • the connection between the tension member and clamping wedge is destroyed by deformation or breakage. In this way it can be ensured that the bracing with a sufficient tensile force, but limited to a level that prevents damage to the parts of the corner connector.
  • the tensile force is transferred over the entire width of the wedge surface on the cover.
  • a uniform distortion in the hollow profile in this case requires a completely uniform cross-section of the same.
  • the free cross-section is somewhat irregular and e.g. on one side slightly lower than on the opposite side, a uniform distortion no longer takes place. Rather, the applied clamping force is higher on one side than on the other. Desirable, however, is a possible uniform clamping, in which the tensile force is transmitted as evenly as possible from the clamping wedge on the cover on the hollow section.
  • the tension member is positively connected to each of the runners in each case by compounds having predetermined breaking points.
  • a predetermined tension when a predetermined tension is exceeded, the connection should be released. Due to the displaceability of the runners against each other, however, an optionally occurring difference between the tensile stresses on the two skids can be compensated first. If, in fact, the tension on one of the runners is higher so that it can no longer be pulled further, the other runner, on which a lower tension force acts, can be pulled a little further, until finally a force balance takes place. If the tensile force is further increased, it spreads evenly on both runners until the above-described tearing of the tension member takes place at the predetermined breaking point. Both skids are then braced with a predetermined clamping force acting on the opposite sides of the cover.
  • the connecting webs are diamond-shaped and formed with opposite corners of the rhombus on the inner side walls of the runners, such that the connections of the Rautenecken allow with the respective runner a pivoting movement.
  • the joints on the corners of the corners thus act as a hinge, which allows the game described above in the longitudinal direction of the skids. If the skids are shifted against each other, the rhombus makes a slight turn.
  • the diamond-shaped connecting element has a central opening.
  • the connecting element has the form of a diamond-shaped frame, the frame webs represent predetermined breaking points at the connections to the runners.
  • Fig. 1 and 2 show a corner connector 10 according to the invention with a shaft 12 and an oblique welding surface 14.
  • the shaft 12 has substantially the shape of a box profile for insertion into a not-shown hollow profile of a door or a window.
  • the shaft 12 On its upper side, the shaft 12 is open and has a box-shaped recess, the bottom of which forms a horizontal sliding surface, on which a clamping wedge 16 rests, as will be shown in more detail below.
  • On the Clamping wedge 16 is a cover 18, the top of the shaft 12 closes at the top.
  • the clamping wedge 16 is arranged on the bottom of the recess 12 of the shaft 12, that it tapers in the direction of the welding surface 14, ie the wedge back 20 is located on the side facing away from the welding surface 14.
  • the clamping wedge 16 thus widened in the insertion direction of the corner connector 10 in the hollow profile, and its upper Keilf kaue 22 is slightly inclined in the direction of the welding surface 14 from the wedge back 20 from.
  • the inclination of this upper wedge surface 22 corresponds to a slope of the bottom 24 of the cover 18, while the top 26 of the cover 18 is horizontal and parallel to the bottom 28 of the shaft 12.
  • the upper wedge surface 22 of the clamping wedge 16 and the bottom 24 of the cover 18 have a ratchet profile that allows the displacement in the above-described direction, but prevents slipping back of the clamping wedge 16 or a release of the tension of the cover 18 in the hollow profile. Once reached a clamping position can not be solved easily again.
  • a tension member 32 is formed, which is accessible through an opening 34 in the welding surface 14 and exposed there.
  • the tension member 32 is provided with an eyelet on which a tool (Not shown in detail) can act to transfer a tensile force on the clamping wedge 16, even if the corner connector 10 is already completely, that is pushed to the welding surface 14 in the hollow profile.
  • the joints at the corners of the lozenges effectively form hinges which allow a slight pivotal movement of the connecting web 42, 44 with respect to the runner 36, 38 formed thereon. In this way, it is possible that the interconnected runners 36,38 are shifted in the longitudinal direction against each other. During this displacement, the diamonds of the connecting webs 42, 44 make a slight turn.
  • This flexibility of the connecting webs 42,44 which allows a displacement of the runners 36,38 with play against each other, can be ensured by a suitably selected material from which the runners 36,38 are made in one piece around the connecting webs 42,44, so typically one correspondingly flexible plastic material.
  • the tension member 32 with the eyelet 50 is connected to the two skids 36,38 via a further diamond-shaped connecting element 52 which corresponds in shape approximately to the connecting webs 42,44.
  • Two opposite corners of the diamond-shaped connecting element 52 are connected to one of the skids 36,38, wherein a further, the clamping wedge 16 facing away from the corner is connected to the tension member 32 and formed on this.
  • the respective connections of the connecting element 52 with the skids 36,38 and the tension member 32 are as flexible as those of the connecting webs 42,44 with the runners 36,38, so that the connecting element 52, the above-described displacement of the runners 36,38 parallel to each other allows and during this shift can perform a slight pivoting movement.
  • the connecting element 52 has a central opening, so that it has approximately the shape of a diamond-shaped frame.
  • this split clamping wedge 16 is the following. Is in the in-position of the clamping wedge 16 below the cover 18, as in Fig. 3 shown, a pulling force via the eyelet 50 on the tension member 32 in the direction of the weld surface 14 exerted (direction A in Fig. 3 and 4 ), the clamping wedge 16 first slides away with two runners 36, 38 under the cover part 18 and raises it at the same time, as above already described. If the cover member 18 abuts with its upper side 26 against the upper wall of the hollow profile, not shown, the clamping wedge 16 is put under tension on further exertion of the tensile force on the tension member 32.
  • the tensile force is further increased, tearing of the connection between the tension member 32 and clamping wedge 16 on the connecting element 52 takes place, namely at predetermined breaking points, which are formed by the frame webs of the diamond-shaped connecting element 52 between the respective runners 36, 38 and the tension member 32. Tearing these webs, the tensile force is limited to both runners 36,38, and the runners 36,38 remain in their cocked position.

Abstract

Eckverbinder (10) zum Einsetzen in ein auf Gehrung geschnittenes Tür- oder Fenster-Hohlprofil, mit einem in das Ende eines Hohlprofils einschiebbaren Schaft (12) mit im wesentlichen rechteckigen Querschnitt und einer den Schaft (12) abschließenden, schräg zum Schaft (12) verlaufenden Schweißfläche (14) sowie einem in Längsrichtung des Schafts (12) verschiebbaren Spannkeil (16, 116), der derart ausgebildet ist, dass der Eckverbinder (10) durch Verschiebung des Spannkeils (16, 116) in Querrichtung des Schafts (12) spreizbar ist, dadurch gekennzeichnet, dass der Spannkeil (16, 116) entlang seiner Längsrichtung in zwei keilförmige Kufen (36, 38) geteilt ist, die durch zwischen den Kufen (36, 38) angeordnete Verbindungsstege (42, 44) derart miteinander verbunden sind, dass die Kufen (36, 38) parallel gegeneinander verschiebbar sind, und dass das Zugglied (32) mit beiden Kufen (36, 38) jeweils über Sollbruchstellen aufweisende Verbindungen formschlüssig verbunden ist.Corner connector (10) for insertion into a mitred door or window hollow profile, with a shaft (12) which can be inserted into the end of a hollow profile and has a substantially rectangular cross-section and a shank (12) terminating obliquely to the shaft (12) extending welding surface (14) and in the longitudinal direction of the shaft (12) displaceable clamping wedge (16, 116) which is designed such that the corner connector (10) by displacement of the clamping wedge (16, 116) in the transverse direction of the shaft (12) spreadable characterized in that the clamping wedge (16, 116) along its longitudinal direction in two wedge-shaped runners (36, 38) is divided, which are connected by between the runners (36, 38) arranged connecting webs (42, 44) with each other, in that the runners (36, 38) are displaceable parallel to one another, and that the tension member (32) is positively connected to both runners (36, 38) via connections having predetermined breaking points.

Description

Die vorliegende Erfindung betrifft einen Eckverbinder für Tür- oder Fenster-Hohlprofile gemäß dem Oberbegriff des Anspruchs 1.The present invention relates to a corner connector for door or window hollow sections according to the preamble of claim 1.

Bei der Verbindung von auf Gehrung geschnittenen Hohlprofilen für Tür- und Fensterrahmen, insbesondere Hohlprofilen aus schweißbarem Kunststoff, werden in die beiden zusammenstoßenden Hohlprofile sogenannte Eckverbinder eingeschoben, die einen in die Hohlprofile eintretenden Schaft und eine der Gehrungsebene der beiden Hohlprofile entsprechende schräge Schweißfläche aufweisen. Durch Verschweißen der beiden Eckverbinder erlangt die Verbindung der Hohlprofile die gewünschte Steifigkeit und Stabilität.When connecting mitred hollow sections for door and window frames, in particular hollow profiles made of weldable plastic, so-called corner joints are inserted into the two colliding hollow sections, which have an entering into the hollow sections shank and one of the miter plane of the two hollow profiles corresponding oblique welding surface. By welding the two corner connectors, the connection of the hollow profiles obtains the desired rigidity and stability.

Zur Festlegung der Eckverbinder in den Hohlprofilen werden die Eckverbinder gespreizt und damit verspannt. Zusätzliche Befestigungsmittel, wie etwa Schrauben, müssen daher zur Festlegung nicht verwendet werden. Für das Verspannen sind unterschiedliche Lösungen bekannt. Bei der Lösung, auf welche sich die vorliegende Erfindung bezieht und aus EP 1 054 130 B1 bekannt ist, liegt zwischen dem Schaft und einem Abdeckteil des Eckverbinders ein Spannkeil ein, der eine Schrägfläche aufweist, auf welcher eine korrespondierende Schrägfläche des Abdeckteils aufliegt. Wird der Spannkeil aus dem Schaft herausgezogen, bewirkt dies ein Anheben des Abdeckteils und somit das gewünschte Verspannen durch ein Aufspreizen des Querschnitts des Eckverbinders in einer Richtung quer zum Schaft. Am Spannkeil ist ein Zugglied befestigt, an welchem ein Werkzeug angreifen kann, um die erforderliche Spannkraft aufzuwenden. Überschreitet die aufgebrachte Zugspannung ein vorgegebenes Maß, wird die Verbindung zwischen Zugglied und Spannkeil durch Verformung oder Bruch zerstört. Auf diese Weise kann sichergestellt werden, dass das Verspannen mit einer ausreichenden Zugkraft erfolgt, die jedoch auf ein Maß begrenzt wird, das eine Beschädigung der Teile des Eckverbinders verhindert.To fix the corner connectors in the hollow sections, the corner connectors are spread and thus clamped. Additional fasteners, such as screws, therefore need not be used for fixation. Different solutions are known for bracing. In the solution to which the present invention relates and from EP 1 054 130 B1 is known, lies between the shaft and a cover of the corner connector a clamping wedge, which has an inclined surface on which a corresponding inclined surface of the cover rests. If the clamping wedge is pulled out of the shaft, this causes a lifting of the cover and thus the desired bracing by spreading the cross-section of the corner connector in a direction transverse to the shaft. At the clamping wedge, a tension member is attached to which a tool can engage to spend the required clamping force. If the applied tensile stress exceeds a predetermined level, the connection between the tension member and clamping wedge is destroyed by deformation or breakage. In this way it can be ensured that the bracing with a sufficient tensile force, but limited to a level that prevents damage to the parts of the corner connector.

Hierbei wird die Zugkraft über die gesamte Breite des Keils flächig auf das Abdeckteil übertragen. Ein gleichmäßiges Verspannen im Hohlprofil setzt in diesem Fall jedoch einen völlig gleichmäßigen Querschnitt desselben voraus. Ist der freie Querschnitt jedoch etwas unregelmäßig und z.B. an einer Seite geringfügig niedriger als auf der gegenüber liegenden Seite, findet ein gleichmäßiges Verspannen nicht mehr statt. Vielmehr ist die aufgebrachte Spannkraft an einer Seite höher als an der anderen. Erwünscht ist jedoch ein möglichst gleichförmiges Verspannen, bei welchem die Zugkraft möglichst gleichmäßig vom Spannkeil über das Abdeckteil auf das Hohlprofil übertragen wird.Here, the tensile force is transferred over the entire width of the wedge surface on the cover. However, a uniform distortion in the hollow profile in this case requires a completely uniform cross-section of the same. However, if the free cross-section is somewhat irregular and e.g. on one side slightly lower than on the opposite side, a uniform distortion no longer takes place. Rather, the applied clamping force is higher on one side than on the other. Desirable, however, is a possible uniform clamping, in which the tensile force is transmitted as evenly as possible from the clamping wedge on the cover on the hollow section.

Es ist daher eine Aufgabe der vorliegenden Erfindung, den Eckverbinder der oben beschriebenen Art derart weiterzubilden, dass die über das Zugglied auf den Spannkeil übertragene Spannkraft möglichst gleichmäßig übertragen wird, so dass ein möglichst gleichförmiges Verspannen des Eckverbinders im Hohlprofil gewährleistet wird.It is therefore an object of the present invention to develop the corner connector of the type described above such that the transmitted over the tension member on the clamping wedge clamping force is transmitted as evenly as possible, so that a uniform as possible bracing of the corner connector is ensured in the hollow profile.

Diese Aufgabe wird erfindungsgemäß durch einen Eckverbinder mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by a corner connector with the features of claim 1.

Der Spannkeil des erfindungsgemäßen Eckverbinders ist entlang seiner Längsrichtung in zwei Teile geteilt, die im folgenden als Kufen bezeichnet werden sollen. Jede dieser Kufen weist in der Längsrichtung einen keilförmigen Querschnitt auf, wobei die Querschnitte der Kufen einander entsprechen. Im Vergleich zu dem herkömmlichen Spannkeil, wie er beispielsweise aus der EP 1 054 130 B1 bekannt ist, sind diese Kufen relativ schmal ausgebildet und liegen parallel in einem Abstand nebeneinander. Sie sind durch Verbindungsstege über den Abstand miteinander verbunden, und zwar mit etwas Spiel, so dass die Kufen parallel gegeneinander in Längsrichtung, d. h. in Zugrichtung des Spannkeils verschiebbar sind. Das heißt, dass die Verbindungsstege zwar den Zusammenhalt der Kufen gewährleisten, jedoch die Verschiebbarkeit der Kufen gegeneinander zulassen müssen.The clamping wedge of the corner connector according to the invention is divided along its longitudinal direction into two parts, which are to be referred to below as runners. Each of these runners has a wedge-shaped cross-section in the longitudinal direction, the cross-sections of the runners corresponding to one another. Compared to the conventional clamping wedge, as for example from the EP 1 054 130 B1 is known, these runners are relatively narrow and are parallel to each other at a distance next to each other. They are connected by connecting webs over the distance, with some play, so that the skids are parallel to each other in the longitudinal direction, ie in the pulling direction of the clamping wedge are displaced. This means that the connecting webs indeed ensure the cohesion of the skids, but must allow the displaceability of the runners against each other.

Das Zugglied ist mit jeder der Kufen jeweils durch Verbindungen formschlüssig verbunden, die Sollbruchstellen aufweisen. Wie auch im Stand der Technik soll bei Überschreiten einer vorgegebenen Zugspannung die Verbindung gelöst werden. Aufgrund der Verschiebbarkeit der Kufen gegeneinander kann jedoch zunächst eine gegebenenfalls auftretende Differenz zwischen den Zugspannungen an den beiden Kufen ausgeglichen werden. Ist nämlich die Spannung an einer der Kufen höher, so dass diese nicht mehr weitergezogen werden kann, kann die andere Kufe, auf welcher eine niedrigere Spannkraft wirkt, noch etwas weiter gezogen werden, bis schließlich ein Kräfteausgleich stattfindet. Wird die Zugkraft weiter erhöht, so verteilt sie sich gleichmäßig auf beide Kufen, bis das vorstehend beschriebene Abreißen des Zugglieds an der Sollbruchstelle stattfindet. Beide Kufen sind dann mit einer vorgegebenen Spannkraft verspannt, die an den gegenüberliegenden Seiten des Abdeckteils wirkt.The tension member is positively connected to each of the runners in each case by compounds having predetermined breaking points. As in the prior art, when a predetermined tension is exceeded, the connection should be released. Due to the displaceability of the runners against each other, however, an optionally occurring difference between the tensile stresses on the two skids can be compensated first. If, in fact, the tension on one of the runners is higher so that it can no longer be pulled further, the other runner, on which a lower tension force acts, can be pulled a little further, until finally a force balance takes place. If the tensile force is further increased, it spreads evenly on both runners until the above-described tearing of the tension member takes place at the predetermined breaking point. Both skids are then braced with a predetermined clamping force acting on the opposite sides of the cover.

Gemäß einer bevorzugten Ausführungsform der vorliegenden Erfindung sind die Verbindungsstege rautenförmig ausgebildet und mit gegenüberliegenden Ecken der Raute an die inneren Seitenwände der Kufen angeformt, derart, dass die Verbindungen der Rautenecken mit der jeweiligen Kufe eine Schwenkbewegung zulassen. Die Verbindungsstellen an den Rautenecken wirken somit als Scharnier, welches das oben beschriebene Spiel in Längsrichtung der Kufen zulässt. Werden die Kufen gegeneinander verschoben, so führt die Raute eine leichte Drehung durch.According to a preferred embodiment of the present invention, the connecting webs are diamond-shaped and formed with opposite corners of the rhombus on the inner side walls of the runners, such that the connections of the Rautenecken allow with the respective runner a pivoting movement. The joints on the corners of the corners thus act as a hinge, which allows the game described above in the longitudinal direction of the skids. If the skids are shifted against each other, the rhombus makes a slight turn.

Gemäß einer weiteren bevorzugten Ausführungsform der Erfindung ist das Zugglied mit den Kufen durch ein ebenfalls rautenförmiges Verbindungselement verbunden, das mit zwei gegenüberliegenden Ecken und jeweils einer der Kufen und mit einer weiteren Ecke mit dem Zugglied verbunden ist. Die Eckverbindungen dieser Raute sind ebenfalls so flexibel, dass bei einer Verschiebung der Kufen gegeneinander eine leichte Drehung der Raute stattfinden kann.According to a further preferred embodiment of the invention, the tension member is connected to the runners by a likewise diamond-shaped connecting element, which is connected to two opposite corners and one of the runners and with another corner to the tension member. The corner joints of this rhombus are also so flexible that with a displacement of the skids against each other a slight rotation of the diamond can take place.

Weiter vorzugsweise weist das rautenförmige Verbindungselement eine zentrale Öffnung auf. Hierdurch hat das Verbindungselement die Form eines rautenförmigen Rahmens, dessen Rahmenstege Sollbruchstellen an den Verbindungen zu den Kufen darstellen.Further preferably, the diamond-shaped connecting element has a central opening. As a result, the connecting element has the form of a diamond-shaped frame, the frame webs represent predetermined breaking points at the connections to the runners.

Im folgenden wird ein bevorzugtes Ausführungsbeispiel der vorliegenden Erfindung anhand der Zeichnung näher erläutert.

Fig. 1 und 2
sind verschiedene perspektivische Ansichten einer ersten Ausführungsform des erfindungsgemäßen Eckverbinders;
Fig. 3
ist ein Längsschnitt durch dem Eckverbinder aus den Fig. 1 und 2;
Fig. 4 und 5
sind jeweils eine Draufsicht und eine perspektivische Ansicht des Spannkeils und des daran angebrachten Zugglieds des Eckverbinders aus den Fig. 1 bis 3; und
Fig. 6 und 7
sind jeweils eine Draufsicht und perspektivische Ansicht einer weiteren Ausführungsform eines Spannkeils mit einem daran angebrachten Zugglied, der ebenfalls in dem Eckverbinder aus den Fig. 1 bis 3 verwendet werden kann.
In the following a preferred embodiment of the present invention will be explained in more detail with reference to the drawing.
Fig. 1 and 2
are various perspective views of a first embodiment of the corner connector according to the invention;
Fig. 3
is a longitudinal section through the corner connector of the Fig. 1 and 2 ;
4 and 5
are each a plan view and a perspective view of the clamping wedge and attached thereto tension member of the corner of the Fig. 1 to 3 ; and
6 and 7
are each a plan view and perspective view of another embodiment of a clamping wedge with a tension member attached thereto, which also in the corner connector of the Fig. 1 to 3 can be used.

Fig. 1 und 2 zeigen einen erfindungsgemäßen Eckverbinder 10 mit einem Schaft 12 und einer schrägen Schweißfläche 14. Der Schaft 12 hat im wesentlichen die Form eines Kastenprofils zum Einschub in ein nicht mehr dargestelltes Hohlprofil einer Tür oder eines Fensters. Auf seiner Oberseite ist der Schaft 12 offen und weist eine kastenförmige Ausnehmung auf, deren Boden eine horizontale Gleitfläche bildet, auf der ein Spannkeil 16 aufliegt, wie im folgenden noch näher dargestellt werden soll. Auf den Spannkeil 16 liegt ein Abdeckteil 18 auf, dessen Oberseite den Schaft 12 nach oben hin abschließt. Fig. 1 and 2 show a corner connector 10 according to the invention with a shaft 12 and an oblique welding surface 14. The shaft 12 has substantially the shape of a box profile for insertion into a not-shown hollow profile of a door or a window. On its upper side, the shaft 12 is open and has a box-shaped recess, the bottom of which forms a horizontal sliding surface, on which a clamping wedge 16 rests, as will be shown in more detail below. On the Clamping wedge 16 is a cover 18, the top of the shaft 12 closes at the top.

Wie in Fig. 3 näher erkennbar ist, ist der Spannkeil 16 derart auf den Boden der Ausnehmung des Schafts 12 angeordnet, dass er in Richtung der Schweißfläche 14 spitz zuläuft, d. h. der Keilrücken 20 befindet sich an der Seite, die der Schweißfläche 14 abgewandt ist. Der Spannkeil 16 verbreitert sich somit in der Einschubrichtung des Eckverbinders 10 in das Hohlprofil, und seine obere Keilfäche 22 ist in Richtung der Schweißfläche 14 vom Keilrücken 20 aus leicht abwärts geneigt. Der Neigung dieser oberen Keilfläche 22 entspricht einer Neigung der Unterseite 24 des Abdeckteils 18, während die Oberseite 26 des Abdeckteils 18 horizontal und parallel zu der Unterseite 28 des Schafts 12 liegt. Verschiebt sich der Spannkeil 16 entlang der Längsrichtung des Schafts 12, d. h. entlang der Schaftachse, gleitet die obere Keilfläche 22 des Spannkeils 16 unter dem Abdeckteil 18 hinweg, welches durch einen vorderen Anschlag 30 in der Nähe der Schweißfläche 14 an einer Gleitbewegung in Richtung derselben gehindert wird. Das Abdeckteil 18 wird somit während dieser Verschiebung des Spannkeils 16 angehoben, und der Abstand zwischen der Oberseite 26 des Abdeckteils 18 und der Unterseite 28 des Schafts 12 vergrößert sich. Hierdurch wird der Eckverbinder 10 innerhalb des Hohlprofils verspannt.As in Fig. 3 can be seen, the clamping wedge 16 is arranged on the bottom of the recess 12 of the shaft 12, that it tapers in the direction of the welding surface 14, ie the wedge back 20 is located on the side facing away from the welding surface 14. The clamping wedge 16 thus widened in the insertion direction of the corner connector 10 in the hollow profile, and its upper Keilfäche 22 is slightly inclined in the direction of the welding surface 14 from the wedge back 20 from. The inclination of this upper wedge surface 22 corresponds to a slope of the bottom 24 of the cover 18, while the top 26 of the cover 18 is horizontal and parallel to the bottom 28 of the shaft 12. If the clamping wedge 16 moves along the longitudinal direction of the shaft 12, ie along the shaft axis, the upper wedge surface 22 of the clamping wedge 16 slides under the cover part 18, which is prevented from sliding in the direction of the same by a front stop 30 in the vicinity of the welding surface 14 becomes. The cover member 18 is thus lifted during this displacement of the clamping wedge 16, and the distance between the top 26 of the cover 18 and the bottom 28 of the shaft 12 increases. As a result, the corner connector 10 is clamped within the hollow profile.

Die obere Keilfläche 22 des Spannkeils 16 und die Unterseite 24 des Abdeckteils 18 weisen eine Ratschenprofilierung, die die Verschiebung in der oben beschriebenen Richtung ermöglicht, jedoch ein Zurückrutschen des Spannkeils 16 bzw. ein Lösen der Verspannung des Abdeckteils 18 im Hohlprofil verhindert. Eine einmal erreichte Spannposition lässt sich somit nicht wieder ohne weiteres lösen.The upper wedge surface 22 of the clamping wedge 16 and the bottom 24 of the cover 18 have a ratchet profile that allows the displacement in the above-described direction, but prevents slipping back of the clamping wedge 16 or a release of the tension of the cover 18 in the hollow profile. Once reached a clamping position can not be solved easily again.

An das Ende des Spannkeils 16, das dem Keilrücken 20 gegenüberliegt, ist ein Zugglied 32 angeformt, das durch eine Öffnung 34 in der Schweißfläche 14 zugänglich ist und dort freiliegt. Das Zugglied 32 ist mit einer Öse versehen, an welcher ein Werkzeug (nicht näher dargestellt) zur Übertragung einer Zugkraft auf den Spannkeil 16 angreifen kann, auch wenn der Eckverbinder 10 bereits vollständig, d. h. bis zur Schweißfläche 14 in das Hohlprofil eingeschoben ist.At the end of the clamping wedge 16, which is opposite the wedge back 20, a tension member 32 is formed, which is accessible through an opening 34 in the welding surface 14 and exposed there. The tension member 32 is provided with an eyelet on which a tool (Not shown in detail) can act to transfer a tensile force on the clamping wedge 16, even if the corner connector 10 is already completely, that is pushed to the welding surface 14 in the hollow profile.

Die oben beschriebene Funktionsweise des Eckverbinders 10 ist im wesentlichen bereits aus EP 1 054 120 B1 bekannt. Der Spannkeil 16 ist jedoch anders ausgebildet, als es aus dem Stand der Technik bekannt ist. Dies wird insbesondere in der isolierten Darstellung des Spannkeils 16 mit dem daran angeformten Zugglied 32 in den Fig. 4 und 5 erkennbar.The above-described operation of the corner connector 10 is essentially already made EP 1 054 120 B1 known. However, the clamping wedge 16 is designed differently than is known from the prior art. This is particularly in the isolated representation of the clamping wedge 16 with the molded thereon tension member 32 in the 4 and 5 recognizable.

Der Spannkeil 16 ist nämlich entlang seiner Längsrichtung, die der Zugrichtung des Spannkeils 16 in der im Schaft 12 einliegenden Montageposition entspricht, in zwei jeweils keilförmig ausgebildete Teile geteilt, die im folgenden als Kufen 36,38 bezeichnet werden sollen. Diese Kufen 36,38 liegen parallel zueinander mit einem dazwischen liegenden Abstand 40. Die Kufen 36,38 weisen im vorliegenden Ausführungsbeispiel exakt die gleiche Keilform auf, d. h., sie haben den gleichen Keilwinkel. Diesbezüglich liegen beide Kufen 36,38 in der Position in Fig. 3 unter dem Abdeckteil 18 derart, dass ihre beiden Oberseiten im spannungsfreien Zustand gleichförmig an der Unterseite 24 des Abdeckteils 10 anliegen.The clamping wedge 16 is namely along its longitudinal direction, which corresponds to the pulling direction of the clamping wedge 16 in the fitting in the shaft 12 mounting position, divided into two respective wedge-shaped parts, which will be referred to hereinafter as runners 36,38. These skids 36,38 are parallel to each other with an intermediate distance 40. The runners 36,38 have exactly the same wedge shape in the present embodiment, ie, they have the same wedge angle. In this regard, both skids are 36,38 in the position in Fig. 3 under the cover 18 such that their two upper sides in the stress-free state uniformly rest against the bottom 24 of the cover 10.

Die Kufen 36,38 sind durch zwei Verbindungsstege 42,44 miteinander verbunden, die den Abstand 40 zwischen den Kufen 36,38 überbrücken. Ein erster Verbindungssteg 42 befindet sich an dem Ende des Spannkeils 16, das dem Zugglied 32 abgewandt ist, und ein zweiter Verbindungssteg 44 befindet sich zwischen dem ersten Verbindungssteg 42 und dem Zugglied 32 etwa in der Längsmitte des Spannkeils 16. Beide Zugglieder 42,44 sind bei der vorliegenden Ausführungsform identisch ausgebildet und haben die Form einer Raute mit einer zentralen Öffnung, d. h. im wesentlichen die Form eines etwa rautenförmigen Rahmens. Diese Rauten der Verbindungsstege 42,44 sind mit ihren gegenüberliegenden Ecken an die jeweiligen Innenwände 46,48 der Kufen 36,38 angeformt. Die Verbindungsstellen an den Ecken der Rauten bilden gewissermaßen Scharniere, die eine leichte Schwenkbewegung des Verbindungsstegs 42,44 in Bezug auf die daran angeformte Kufe 36,38 zulassen. Auf diese Weise ist es möglich, dass die miteinander verbundenen Kufen 36,38 in Längsrichtung gegeneinander verschoben werden. Während dieser Verschiebung führen die Rauten der Verbindungsstege 42,44 eine leichte Drehung durch. Diese Flexibilität der Verbindungsstege 42,44, die eine Verschiebung der Kufen 36,38 mit Spiel gegeneinander zulässt, kann durch ein geeignet gewähltes Material gewährleistet werden, aus welchem die Kufen 36,38 um die Verbindungsstege 42,44 einstückig gefertigt sind, also typischerweise ein entsprechend flexibles Kunststoffmaterial.The runners 36,38 are connected by two connecting webs 42,44, which bridge the distance 40 between the runners 36,38. A first connecting web 42 is located at the end of the clamping wedge 16, which faces away from the tension member 32, and a second connecting web 44 is located between the first connecting web 42 and the tension member 32 approximately in the longitudinal center of the clamping wedge 16. Both tension members 42,44 are formed identically in the present embodiment and have the shape of a rhombus with a central opening, ie, substantially the shape of an approximately diamond-shaped frame. These diamonds of the connecting webs 42, 44 are with their opposite corners against the respective inner walls 46, 48 of the skids 36, 38 formed. The joints at the corners of the lozenges effectively form hinges which allow a slight pivotal movement of the connecting web 42, 44 with respect to the runner 36, 38 formed thereon. In this way, it is possible that the interconnected runners 36,38 are shifted in the longitudinal direction against each other. During this displacement, the diamonds of the connecting webs 42, 44 make a slight turn. This flexibility of the connecting webs 42,44, which allows a displacement of the runners 36,38 with play against each other, can be ensured by a suitably selected material from which the runners 36,38 are made in one piece around the connecting webs 42,44, so typically one correspondingly flexible plastic material.

Das Zugglied 32 mit der Öse 50 ist mit den beiden Kufen 36,38 über ein weiteres rautenförmiges Verbindungselement 52 verbunden, das in seiner Form etwa den Verbindungsstegen 42,44 entspricht. Zwei gegenüberliegende Ecken des rautenförmigen Verbindungselements 52 sind mit jeweils einer der Kufen 36,38 verbunden, wobei eine weitere, dem Spannkeil 16 abgewandte Ecke mit dem Zugglied 32 verbunden und an dieses angeformt ist. Die jeweiligen Verbindungen des Verbindungselements 52 mit den Kufen 36,38 sowie dem Zugglied 32 sind ebenso flexibel ausgebildet wie diejenigen der Verbindungsstege 42,44 mit den Kufen 36,38, so dass das Verbindungselement 52 die oben beschriebene Verschiebung der Kufen 36,38 parallel gegeneinander zulässt und während dieser Verschiebung eine leichte Schwenkbewegung durchführen kann. Das Verbindungselement 52 weist eine zentrale Öffnung auf, so dass es etwa die Form eines rautenförmigen Rahmens hat.The tension member 32 with the eyelet 50 is connected to the two skids 36,38 via a further diamond-shaped connecting element 52 which corresponds in shape approximately to the connecting webs 42,44. Two opposite corners of the diamond-shaped connecting element 52 are connected to one of the skids 36,38, wherein a further, the clamping wedge 16 facing away from the corner is connected to the tension member 32 and formed on this. The respective connections of the connecting element 52 with the skids 36,38 and the tension member 32 are as flexible as those of the connecting webs 42,44 with the runners 36,38, so that the connecting element 52, the above-described displacement of the runners 36,38 parallel to each other allows and during this shift can perform a slight pivoting movement. The connecting element 52 has a central opening, so that it has approximately the shape of a diamond-shaped frame.

Die Funktionsweise dieses geteilten Spannkeils 16 ist die folgende. Wird in der einliegenden Position des Spannkeils 16 unterhalb des Abdeckteils 18, wie in Fig. 3 dargestellt, eine Zugkraft über die Öse 50 auf das Zugglied 32 in Richtung der Schweißfläche 14 ausgeübt (Richtung A in Fig. 3 und 4), gleitet zunächst der Spannkeil 16 mit beiden Kufen 36,38 unter dem Abdeckteil 18 weg und hebt dieses gleichzeitig an, wie oben bereits beschrieben. Stößt das Abdeckteil 18 mit seiner Oberseite 26 gegen die obere Wand des nicht dargestellten Hohlprofils, wird der Spannkeil 16 bei weiterer Ausübung der Zugkraft auf das Zugglied 32 unter Spannung gesetzt. Weist das Hohlprofil nicht an beiden gegenüberliegenden Seiten den gleichen Querschnitt auf, also insbesondere eine unterschiedliche Höhe, so wirkt diese Spannkraft nicht gleichzeitig auf beide Kufen 36,38, sondern zunächst erfährt eine der Kufen einen größeren Widerstand als die andere. Ist dies beispielsweise die linke Kufe 36 in Fig. 4, bewirkt die weiter ausgeübte Zugkraft eine weitere Verschiebung der anderen rechten Kufe 38 in Richtung der Schweißfläche 14, bis ein Ausgleich der Differenz der Zugspannung auf beide Kufen 36,38 stattgefunden hat. Das heißt, dass dieser Ausgleich der Zugspannung durch das Spiel der Kufen 36,38 gegeneinander stattfinden kann. Dies ist ein Vorteil gegenüber herkömmlichen Spannkeilen, die über ihre gesamte Breite starr ausgebildet sind und somit keinen Zugspannungsausgleich zulassen.The operation of this split clamping wedge 16 is the following. Is in the in-position of the clamping wedge 16 below the cover 18, as in Fig. 3 shown, a pulling force via the eyelet 50 on the tension member 32 in the direction of the weld surface 14 exerted (direction A in Fig. 3 and 4 ), the clamping wedge 16 first slides away with two runners 36, 38 under the cover part 18 and raises it at the same time, as above already described. If the cover member 18 abuts with its upper side 26 against the upper wall of the hollow profile, not shown, the clamping wedge 16 is put under tension on further exertion of the tensile force on the tension member 32. If the hollow profile does not have the same cross-section on both opposite sides, ie in particular a different height, then this clamping force does not act simultaneously on both runners 36, 38, but first one of the runners experiences a greater resistance than the other. For example, if this is the left skid 36 in FIG Fig. 4 , The further applied tensile force causes a further displacement of the other right runner 38 in the direction of the welding surface 14 until a compensation of the difference in tension on both runners 36,38 has taken place. This means that this compensation of the tension can take place by the game of runners 36,38 against each other. This is an advantage over conventional clamping wedges, which are rigid over their entire width and thus allow no tension compensation.

Wird die Zugkraft weiter erhöht, findet schließlich ein Abreißen der Verbindung zwischen Zugglied 32 und Spannkeil 16 am Verbindungselement 52 statt, und zwar an Sollbruchstellen, die durch die Rahmenstege des rautenförmigen Verbindungselements 52 zwischen der jeweiligen Kufe 36,38 und dem Zugglied 32 gebildet sind. Reißen diese Stege, wird die Zugkraft auf beide Kufen 36,38 begrenzt, und die Kufen 36,38 verbleiben in ihrer gespannten Position.If the tensile force is further increased, tearing of the connection between the tension member 32 and clamping wedge 16 on the connecting element 52 takes place, namely at predetermined breaking points, which are formed by the frame webs of the diamond-shaped connecting element 52 between the respective runners 36, 38 and the tension member 32. Tearing these webs, the tensile force is limited to both runners 36,38, and the runners 36,38 remain in their cocked position.

In den Fig. 6 und 7 wird eine alternative Ausführungsform des Spannkeils 116 dargestellt, in der das rautenförmige Verbindungselement 152 zur Verbindung des Zugglieds 32 mit den Kufen 36,38 vergrößert ist. Die Breite des Verbindungselements 52 ist in diesem Fall größer als der Abstand 40 zwischen den Kufen 36,38. Daher ist das Verbindungselement 152 in eine rautenförmige Aussparung 154 zwischen den Kufen 36,38 eingepasst, wobei die gegenüberliegenden Ecken des Verbindungselements 152 an den Punkten der maximalen Breite der Aussparung 154 an die Kufen 36,38 angeformt sind. Die Größe der Aussparung 154 ist derart bemessen, dass das darin einliegende Verbindungselement 52 eine leichte Drehung innerhalb der Aussparung 154 bei einer parallelen Verschiebung der Kufen 36,38 gegeneinander ausführen können. Zwischen den Außenseiten des rautenförmigen Verbindungselements 152 und den Wänden, die die Aussparung 154 begrenzen, verbleibt somit ein leichter Zwischenraum, der diese Schwenkbewegung zulässt.In the 6 and 7 an alternative embodiment of the clamping wedge 116 is shown, in which the diamond-shaped connecting element 152 is enlarged to connect the tension member 32 with the runners 36,38. The width of the connecting element 52 in this case is greater than the distance 40 between the skids 36,38. Therefore, the connecting element 152 is fitted in a diamond-shaped recess 154 between the runners 36, 38, wherein the opposite corners of the connecting element 152 are integrally formed on the runners 36, 38 at the points of the maximum width of the recess 154. The size of the recess 154 is dimensioned such that the connecting element inserted therein 52 can perform a slight rotation within the recess 154 in a parallel displacement of the runners 36,38 against each other. Between the outer sides of the diamond-shaped connecting element 152 and the walls delimiting the recess 154 thus remains a slight gap which allows this pivoting movement.

Claims (4)

Eckverbinder (10) zum Einsetzen in ein auf Gehrung geschnittenes Tür- oder Fenster-Hohlprofil, mit einem in das Ende eines Hohlprofils einschiebbaren Schaft (12) mit im wesentlichen rechteckigen Querschnitt und einer den Schaft (12) abschließenden, schräg zum Schaft (12) verlaufenden Schweißfläche (14) sowie einem in Längsrichtung des Schafts (12) verschiebbaren Spannkeil (16, 116), der derart ausgebildet ist, dass der Eckverbinder (10) durch Verschiebung des Spannkeils (16, 116) in Querrichtung des Schafts (12) spreizbar ist, dadurch gekennzeichnet, dass der Spannkeil (16, 116) entlang seiner Längsrichtung in zwei keilförmige Kufen (36, 38) geteilt ist, die durch zwischen den Kufen (36, 38) angeordnete Verbindungsstege (42, 44) derart miteinander verbunden sind, dass die Kufen (36, 38) parallel gegeneinander verschiebbar sind, und dass das Zugglied (32) mit beiden Kufen (36, 38) jeweils über Sollbruchstellen aufweisende Verbindungen formschlüssig verbunden ist.Corner connector (10) for insertion into a mitered door or window hollow profile, with a shaft (12) which can be inserted into the end of a hollow profile and has a substantially rectangular cross-section and a shank (12) terminating obliquely to the shaft (12) extending welding surface (14) and in the longitudinal direction of the shaft (12) displaceable clamping wedge (16, 116) which is designed such that the corner connector (10) by displacement of the clamping wedge (16, 116) in the transverse direction of the shaft (12) spreadable characterized in that the clamping wedge (16, 116) along its longitudinal direction in two wedge-shaped runners (36, 38) is divided, which are connected by between the runners (36, 38) arranged connecting webs (42, 44) with each other, in that the runners (36, 38) are displaceable parallel to one another, and that the tension member (32) is positively connected to both runners (36, 38) via connections having predetermined breaking points. Eckverbinder gemäß Anspruch 1, dadurch gekennzeichnet, dass die Verbindungsstege (42, 44) rautenförmig ausgebildet sind und mit gegenüber liegenden Ecken der Raute an die inneren Seitenwände (46,48) der Kufen (36, 38) angeformt sind, derart, dass die Verbindungen der Rautenecken mit der jeweiligen Kufe (36,38) eine Schwenkbewegung zulassen.Corner connector according to claim 1, characterized in that the connecting webs (42, 44) are diamond-shaped and are formed with opposite corners of the rhombus on the inner side walls (46,48) of the skids (36, 38), such that the compounds allow the Rautenecken with the respective skid (36,38) a pivoting movement. Eckverbinder gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Zugglied (32) mit den Kufen (36, 38) durch ein rautenförmiges Verbindungselement (52, 152) verbunden ist, das mit zwei gegenüberliegenden Ecken mit jeweils einer der Kufen (36, 38) und mit einer weiteren Ecke mit dem Zugglied (32) verbunden ist.Corner connector according to claim 1 or 2, characterized in that the tension member (32) is connected to the skids (36, 38) by a diamond-shaped connecting element (52, 152) which is provided with two opposite corners, each with one of the runners (36, 38 ) and connected to another corner with the tension member (32). Eckverbinder gemäß Anspruch 3, dadurch gekennzeichnet, dass das rautenförmige Verbindungselement (52) eine zentrale Öffnung aufweist.Corner connector according to claim 3, characterized in that the diamond-shaped connecting element (52) has a central opening.
EP16202836.9A 2015-12-11 2016-12-08 Corner connector for door or window hollow profiles Active EP3179026B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL16202836T PL3179026T3 (en) 2015-12-11 2016-12-08 Corner connector for door or window hollow profiles
SI201630083T SI3179026T1 (en) 2015-12-11 2016-12-08 Corner connector for door or window hollow profiles
HRP20181295TT HRP20181295T1 (en) 2015-12-11 2018-08-08 Corner connector for door or window hollow profiles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015121586.1A DE102015121586B3 (en) 2015-12-11 2015-12-11 Corner connector for door or window hollow sections

Publications (2)

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EP3179026A1 true EP3179026A1 (en) 2017-06-14
EP3179026B1 EP3179026B1 (en) 2018-06-20

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EP16202836.9A Active EP3179026B1 (en) 2015-12-11 2016-12-08 Corner connector for door or window hollow profiles

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EP (1) EP3179026B1 (en)
DE (1) DE102015121586B3 (en)
HR (1) HRP20181295T1 (en)
HU (1) HUE039638T2 (en)
PL (1) PL3179026T3 (en)
SI (1) SI3179026T1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20013894U1 (en) * 2000-08-11 2000-12-14 Reichel Phi Gmbh Corner connector
EP1054130B1 (en) 1999-05-18 2004-05-19 Hans Dieter Grotefeld Corner joint for hollow profiles of doors or windows
EP1054120B1 (en) 1999-05-17 2006-04-19 Santiago Bach Lahor Self assembling niche for cremation ashes
DE102007013264A1 (en) * 2007-03-20 2008-10-02 SCHÜCO International KG Connector for connecting two profiles that are joined together, particularly framework, e.g. window, door or facade, has chamber or groove, base body and one or multiple spreaded arms, which are clamped in fixed manner in chamber or groove

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1054120B1 (en) 1999-05-17 2006-04-19 Santiago Bach Lahor Self assembling niche for cremation ashes
EP1054130B1 (en) 1999-05-18 2004-05-19 Hans Dieter Grotefeld Corner joint for hollow profiles of doors or windows
DE20013894U1 (en) * 2000-08-11 2000-12-14 Reichel Phi Gmbh Corner connector
DE102007013264A1 (en) * 2007-03-20 2008-10-02 SCHÜCO International KG Connector for connecting two profiles that are joined together, particularly framework, e.g. window, door or facade, has chamber or groove, base body and one or multiple spreaded arms, which are clamped in fixed manner in chamber or groove

Also Published As

Publication number Publication date
DE102015121586B3 (en) 2017-03-02
HRP20181295T1 (en) 2018-10-05
EP3179026B1 (en) 2018-06-20
SI3179026T1 (en) 2018-11-30
HUE039638T2 (en) 2019-01-28
PL3179026T3 (en) 2018-10-31

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