EP2873795A1 - Corner connectors for door and window frames - Google Patents
Corner connectors for door and window frames Download PDFInfo
- Publication number
- EP2873795A1 EP2873795A1 EP20130192862 EP13192862A EP2873795A1 EP 2873795 A1 EP2873795 A1 EP 2873795A1 EP 20130192862 EP20130192862 EP 20130192862 EP 13192862 A EP13192862 A EP 13192862A EP 2873795 A1 EP2873795 A1 EP 2873795A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shaft
- spindle
- clamping piece
- corner connector
- connector according
- 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
Links
- 238000003466 welding Methods 0.000 abstract description 13
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000003892 spreading Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
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 frame made of hollow profiles, with a correspondingly extending the miter welding surface and an emanating from this, the inner cross-section of the hollow profile adapted and clamped in this shaft, according to the preamble of claim 1.
- Window and door frames made of plastic hollow sections are produced by mitring the individual hollow profile sections and welding them into the miter corners.
- first corner connectors are inserted into the hollow profiles, which have a shaft to be inserted into the hollow profile and a welding surface which lies in the miter plane. By welding these welding surfaces, the contact surface in the miter area is substantially increased and the miter joint therefore stabilized.
- the required strength of the connection can only be realized if the corner connectors are firmly seated in the hollow profile ends. It is therefore customary to brace the shank of the corner connector within the corresponding hollow profile.
- the corner connector may have suitable clamping pieces, which eino laterally in the shaft wall and radially, d. H. can be stretched or pressed laterally outwards. As a result, the shaft is wedged securely and backlash in the hollow profile.
- a suitable mechanism For the clamping of the clamping pieces, a suitable mechanism must be provided within the shaft, which makes it possible to exert a clamping force from the inside to the clamping pieces by means of a rotary or pulling tool.
- the patent shows DE 10 2006 001 045 the Applicant a threaded spindle which is rotatably mounted within the shaft, but axially fixed. With this spindle is a spindle nut in the threaded engagement, which has a wedge surface on its circumference, which in turn acts on a clamping piece in the peripheral region of the spindle nut.
- the spindle nut If the spindle is rotated, for example by a machine tool, which is attached to the spindle end, the spindle nut is axially displaced, and its outer wedge surface presses from the inside against the Clamp and drives this radially outward. As a result, the clamping piece is clamped radially in the hollow profile.
- the corner connector according to the invention is also equipped with a threaded spindle, which is conical and not axially fixed, as is the case in the above-described prior art, but rotatably rests in a thread guide in the shaft.
- a rotation of the spindle thus automatically leads to an axial forward or backward movement along the thread guide.
- the clamping piece bears laterally against the threaded spindle so that it can slide during the rotation under the clamping piece. Due to the taper of the spindle, the clamping piece is raised or lowered by the rotation, depending on the direction of rotation. For example, if the spindle is rotated so that it moves in the direction of its tip and pushes further under the clamping piece, the latter is raised and pressed radially outward. As a result, the shaft is clamped in the hollow profile. Conversely, this tension can be reversed again by the spindle is screwed out again and slides away under the clamping piece.
- the solution according to the invention has the advantage that no spindle nut is no longer necessary, which acts on the clamping piece. Rather, the spindle itself due to the taper of its lateral surface on a wedge effect, which ensures the spreading of the clamping piece in the shaft.
- the corner connector according to the invention can thus be composed of fewer parts and easier to assemble.
- the threaded spindle, the clamping piece and a component provided with the thread guide, for example, can be pressed or sprayed together from plastic and assembled after the pressing or spraying in the desired manner.
- the thread guide is formed by an internally threaded profile section in that the spindle rests laterally, and the clamping piece bears against the side of the spindle opposite the internal thread profile section.
- This profile section is shaped as an along its length half-cut internal thread, which receives the spindle so that half of its circumference is enclosed by the profile section and its external thread engages at least partially in the fferenwindungsabête of the profile section. During the rotation of the spindle, this can thus slide in the female thread profile and move axially.
- the clamping piece is provided with an inner sliding surface of approximately semicircular cross section, which bears against the spindle. Under this sliding surface, the spindle can slide away during its rotation and axial displacement.
- the sliding surface can have a slight conicity for adaptation to the conical lateral surface of the spindle itself.
- the thread guide and the inner surface of the clamping piece define a tapered channel in which the spindle rests.
- the spindle can thus be rotated so that it pushes during the rotation in the channel and further spreads, which is made possible by the radial mobility of the clamping piece.
- the thread guide, in particular the internal thread profile section may in this case even have a slight conicity and / or be slightly inclined to the main axis of the shaft.
- the clamping piece is axially fixed in a recess in the shaft wall.
- the thread guide is formed in a rail-shaped guide block on which the spindle is mounted and which rests firmly in the shaft or forms part of the same.
- This guide block can be inserted, for example during assembly of the corner connector in the shaft lengthwise and secured in this.
- the clamping piece cooperates with expansion paths, which rest on the side of the shaft on corresponding expansion surfaces, wherein the spreader webs and the expansion surfaces are profiled in such a way that the spreader belts are pressed outwards on the expansion surfaces.
- Such spreaders are in particular from the European patent application EP 08 011 190 known to the applicant.
- the expansion surfaces form the opposite outer sides of the shaft on which lie the spreader tracks.
- Spreader tracks and spreader surfaces have, for example, cooperating wedge surfaces or expansion knobs which cause the spreader webs to be forced apart during a displacement on the spreader surfaces and thus lead to a distortion of the shaft in the hollow profile.
- Such displacement of the spreader webs is effected by the spanner which is suitably coupled to the spreader webs such that upon radial movement of the spool outwardly, the above-described displacement of the spreader webs occurs.
- the shaft is thus clamped evenly to opposite sides in the hollow profile.
- the expansion paths may preferably be parts of a hood with a U-shaped cross section, which surrounds the shaft on three sides and which can be raised by the tensioning piece.
- the clamping piece can also be formed integrally with the hood.
- the thicker end of the spindle is accessible from the outside and has a projection for receiving a turning tool.
- This turning tool may be a manually operated tool or a machine tool such as a drill.
- the approach for example, be an opening into which a pin of the rotary tool is inserted to a To transmit torque to the spindle, such as typically an opening with hexagonal cross section for receiving an Allen wrench. Rotation of the key then causes rotation of the spindle.
- the in Fig. 1 illustrated corner connector 10 includes a shaft 12 which forms a body having a substantially rectangular cross-sectional basic shape of the corner connector, and a welding surface 14 which extends along a miter slope, which is inclined relative to the main axis of the shaft 12 by 45 °.
- the shaft 12 is intended to be inserted into an unillustrated hollow profile of a door or window frame and clamped therein, as will be shown in more detail below.
- Two such hollow profiles, which are provided with corner connectors 10 of the type shown, can at their Miter levels juxtaposed and welded together, so that a stable corner joint of the hollow profiles is formed.
- a recess 16 is formed, which is open to the top of the shaft and the welding surface 14.
- a guide block 18 which has the shape of a rail and from the opening in the welding surface 14 forth in the shaft 12 is inserted and anchored firmly in the bottom in a manner not shown, so that the guide block 18 with the shaft 12 forms a unit.
- the part shown here as a guide block 18 is formed integrally with the shaft 12.
- the upper opening of the recess 16 is closed by a clamping piece 20, which is fixed axially in the shaft 12, d. H. the clamping piece 20 can not move along the shaft axis. However, the clamping piece 20 in the radial direction, d. H. raise or lower perpendicular to the shaft axis and is loosely in this regard in the recess 16 a.
- the clamping piece 20 has a flat upper surface 22 which is pressed against the inside of the hollow profile during clamping of the corner connector 10 in the hollow profile.
- a threaded spindle 24 which is rotatably mounted on the guide block 18 and on which the clamping piece 20 rests.
- the threaded spindle 24 is conical. Its thicker end is on the side of the welding surface 14, while its thinner end (in Fig. 1 not visible) between the guide block 18 and the clamping piece 20 rests.
- the guide block 18 on its upper side an internal thread profile section 26 (see Fig.
- Windungsabrisken 28 which engage around the threaded spindle 24 respectively from below about half of its circumference, ie, the conical outer thread 30 of the threaded spindle 24 engages in the threaded portions 28 of Female thread profile section 26 a.
- the clamping piece 20 is provided on its underside with an inner sliding surface 32, which has approximately a semicircular cross-section. This cross section is located on the top of the threaded spindle 24, so that the clamping piece 20 abuts on the side of the spindle 24, which is opposite to the female thread profile section 26.
- the internal thread profile section 26 and the sliding surface 32 form between them a tapered channel 34, in which the spindle 24 rests.
- the threaded spindle 24 By a clockwise rotation of the threaded spindle 24, it moves axially along this channel 34 along the internal thread profile section 26 and slides away under the sliding surface 32 of the axially fixed clamping piece 20 during this movement. As a result, the channel 34 is further spread open, and the clamping piece 20 is pressed laterally upwards and stretched radially outward.
- the torque may, for example, be exerted via a rotary machine tool, such as a drill, which, in the region of the welding surface 14, is pressed against the thicker end 36 (FIG. Fig. 2 ) of the spindle 24 is applied.
- This end 36 is provided for this purpose with a hexagonal opening 38 into which the rotary tool can be inserted. It is also possible to use a hand tool, such as an Allen key.
- the threaded spindle 24 during rotation within the channel 34 performs a wedge action for spreading the clamping piece 20 so that it is pressed immediately outward. This represents a particularly simple mode of action, which can be realized with few components.
- This step 46 includes vertical abutment surfaces 48, against which the clamping piece 20 strikes in a displacement on the guide block 18 into the hollow profile. That is, the spanner 20 can not translate beyond the underlying guide block 18 in that direction.
- the clamping piece 20 presses with its outer surface 22 is not directly against the inner wall of the hollow profile, but from below against a hood with U-shaped cross-section, the leg is formed by spreader, the side of corresponding expansion surfaces 50,52 of the shaft 12 abut. As in 3 and 4 can be clearly seen, these spreading surfaces 50,52 on a sawtooth profile, which engages in a correspondingly shaped inner profile of the lying thereon spreading. If the hood raised by the tensioning of the clamping piece 20 to the outside, the spreader webs are moved to the expansion surfaces 50,52, and the sawtooth surfaces run towards each other, so that the expansion surfaces of the hood are pressed to the outside. This leads to a uniform clamping of the shaft 12 to both sides and upwards within the hollow profile. It is also conceivable, integrally form the clamping piece 20 with the hood.
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
Eckverbinder (10) für Tür- oder Fensterrahmen aus Hohlprofilen, mit einer entsprechend der Gehrungsschräge verlaufenden Schweißftäche (14) und einem von dieser ausgehenden, dem Innenquerschnitt des Hohlprofils angepassten und in diesem verspannbaren Schaft (12), einer Gewindespindel (24), die im Schaft (12) drehbar gelagert ist, und mindestens einem Spannstück (20), das seitlich in der Schaftwand einliegt und durch eine Drehung der Gewindespindel (24) radial nach außen gespannt werden kann, dadurch gekennzeichnet, dass die Gewindespindel (24) konisch ausgebildet ist und mit ihrem Gewinde in einer stationären Gewindeführung (26) im Schaft (12) einliegt, und dass das Spannstück (20) seitlich an der Gewindespindel anliegt.Corner connector (10) for door or window frame made of hollow profiles, with a correspondingly extending the Miter slope welding surface (14) and an emanating from this, the inner cross section of the hollow profile adapted and braceable in this shaft (12), a threaded spindle (24) in the Shaft (12) is rotatably mounted, and at least one clamping piece (20) which rests laterally in the shaft wall and by a rotation of the threaded spindle (24) can be clamped radially outward, characterized in that the threaded spindle (24) is conical and with its thread rests in a stationary thread guide (26) in the shaft (12), and that the clamping piece (20) bears laterally against the threaded spindle.
Description
Die vorliegende Erfindung betrifft einen Eckverbinder für Tür- oder Fensterrahmen aus Hohlprofilen, mit einer entsprechend der Gehrungsschräge verlaufenden Schweißfläche und einem von dieser ausgehenden, dem Innenquerschnitt des Hohlprofils angepassten und in diesem verspannten Schaft, gemäß dem Oberbegriff des Anspruchs 1.The present invention relates to a corner connector for door or window frame made of hollow profiles, with a correspondingly extending the miter welding surface and an emanating from this, the inner cross-section of the hollow profile adapted and clamped in this shaft, according to the preamble of claim 1.
Fenster- und Türrahmen aus Kunststoff-Hohlprofilen werden dadurch hergestellt, das einzelne Hohlprofilabschnitte auf Gehrung geschnitten und in den Gehrungs-Ecken verschweißt werden. Durch das Verschweißen der Profile allein lässt sich jedoch keine ausreichend stabile Eckverbindung herstellen. Daher werden zunächst in die Hohlprofile Eckverbinder eingeschoben, die einen in das Hohlprofil einzusetzenden Schaft und eine Schweißfläche aufweisen, die in der Gehrungsebene liegt. Durch Verschweißen dieser Schweißflächen wird die Kontaktfläche im Gehrungsbereich wesentlich erhöht und die Gehrungsverbindung daher stabilisiert.Window and door frames made of plastic hollow sections are produced by mitring the individual hollow profile sections and welding them into the miter corners. By welding the profiles alone, however, can not produce a sufficiently stable corner joint. Therefore, first corner connectors are inserted into the hollow profiles, which have a shaft to be inserted into the hollow profile and a welding surface which lies in the miter plane. By welding these welding surfaces, the contact surface in the miter area is substantially increased and the miter joint therefore stabilized.
Die erforderliche Festigkeit der Verbindung lässt sich aber nur dann realisieren, wenn die Eckverbinder fest in den Hohlprofilenden sitzen. Es ist daher üblich, den Schaft des Eckverbinders innerhalb des entsprechenden Hohlprofils zu verspannen. Hierzu kann der Eckverbinder geeignete Spannstücke aufweisen, die seitlich in der Schaftwand einliegen und radial, d. h. seitlich nach außen gespannt oder gedrückt werden können. Hierdurch wird der Schaft im Hohlprofil sicher und spielfrei verkeilt.However, the required strength of the connection can only be realized if the corner connectors are firmly seated in the hollow profile ends. It is therefore customary to brace the shank of the corner connector within the corresponding hollow profile. For this purpose, the corner connector may have suitable clamping pieces, which einliegen laterally in the shaft wall and radially, d. H. can be stretched or pressed laterally outwards. As a result, the shaft is wedged securely and backlash in the hollow profile.
Für das Spannen der Spannstücke muss innerhalb des Schafts ein geeigneter Mechanismus vorgesehen sein, der es ermöglicht, mittels eines Dreh- oder Zugwerkzeugs eine Spannkraft von innen auf die Spannstücke auszuüben. Beispielsweise zeigt das Patent
Diese Lösung hat allerdings den Nachteil, dass der betreffende Eckverbinder relativ kompliziert aufgebaut ist und viele Teile umfasst, die bei seiner Herstellung zu montieren sind. Seine Herstellung ist daher vergleichsweise teuer.However, this solution has the disadvantage that the corner connector in question is relatively complicated and includes many parts that are to be mounted during its manufacture. Its production is therefore relatively expensive.
Es ist daher eine Aufgabe der vorliegenden Erfindung, einen Eckverbinder der vorstehend beschriebenen Art zu schaffen, der relativ einfach aufgebaut ist, einfach und vergleichsweise preiswert herzustellen ist und sich dennoch einfach und zuverlässig montieren lässt.It is therefore an object of the present invention to provide a corner connector of the type described above, which is relatively simple in construction, simple and comparatively inexpensive to manufacture and yet easy and reliable to assemble.
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 erfindungsgemäße Eckverbinder ist ebenfalls mit einer Gewindespindel ausgestattet, die jedoch konisch ausgebildet ist und nicht axial festgelegt ist, wie es bei dem oben beschriebenen Stand der Technik der Fall ist, sondern drehbar in einer Gewindeführung im Schaft einliegt. Eine Drehung der Spindel führt somit automatisch zu einer axialen Vorwärts- oder Rückwärtsbewegung entlang der Gewindeführung. Das Spannstück liegt seitlich an der Gewindespindel an, so dass diese während der Drehung unter dem Spannstück hindurchgleiten kann. Aufgrund der Konizität der Spindel wird das Spannstück durch die Drehung angehoben oder abgesenkt, je nach Drehrichtung. Wird beispielsweise die Spindel so gedreht, dass sie in Richtung ihrer Spitze wandert und sich weiter unter das Spannstück schiebt, wird letzteres angehoben und radial nach außen gedrückt. Hierdurch wird der Schaft im Hohlprofil verspannt. Umgekehrt kann diese Verspannung wieder aufgehoben werden, indem die Spindel wieder herausgedreht wird und unter dem Spannstück weggleitet.The corner connector according to the invention is also equipped with a threaded spindle, which is conical and not axially fixed, as is the case in the above-described prior art, but rotatably rests in a thread guide in the shaft. A rotation of the spindle thus automatically leads to an axial forward or backward movement along the thread guide. The clamping piece bears laterally against the threaded spindle so that it can slide during the rotation under the clamping piece. Due to the taper of the spindle, the clamping piece is raised or lowered by the rotation, depending on the direction of rotation. For example, if the spindle is rotated so that it moves in the direction of its tip and pushes further under the clamping piece, the latter is raised and pressed radially outward. As a result, the shaft is clamped in the hollow profile. Conversely, this tension can be reversed again by the spindle is screwed out again and slides away under the clamping piece.
Die erfindungsgemäße Lösung bietet den Vorteil, dass keine Spindelmutter mehr notwendig ist, die auf das Spannstück einwirkt. Vielmehr weist die Spindel aufgrund der Konizität ihrer Mantelfläche selbst eine Keilwirkung auf, die für das Aufspreizen des Spannstücks im Schaft sorgt.The solution according to the invention has the advantage that no spindle nut is no longer necessary, which acts on the clamping piece. Rather, the spindle itself due to the taper of its lateral surface on a wedge effect, which ensures the spreading of the clamping piece in the shaft.
Der erfindungsgemäße Eckverbinder lässt sich somit aus weniger Teilen zusammensetzen und leichter montieren. Die Gewindespindel, das Spannstück und ein mit der Gewindeführung versehenes Bauteil können beispielsweise gemeinsam aus Kunststoff gepresst oder gespritzt werden und nach dem Pressen bzw. Spritzen in der gewünschten Weise zusammengesetzt werden.The corner connector according to the invention can thus be composed of fewer parts and easier to assemble. The threaded spindle, the clamping piece and a component provided with the thread guide, for example, can be pressed or sprayed together from plastic and assembled after the pressing or spraying in the desired manner.
Gemäß einer bevorzugten Ausführungsform der vorliegenden Erfindung wird die Gewindeführung durch einen Innengewinde-Profilabschnitt gebildet, indem die Spindel seitlich einliegt, und das Spannstück liegt an der dem Innengewinde-Profilabschnitt gegenüberliegenden Seite der Spindel an. Dieser Profilabschnitt ist geformt wie ein entlang seiner Länge halb aufgeschnittenes Innengewinde, das die Spindel so aufnimmt, dass sie zur Hälfte ihres Umfangs vom Profilabschnitt umschlossen wird und ihr Außengewinde zumindest teilweise in die Schraubenwindungsabschnitte des Profilabschnitts eingreift. Während der Drehung der Spindel kann diese somit in dem Innengewindeprofil gleiten und sich axial bewegen.According to a preferred embodiment of the present invention, the thread guide is formed by an internally threaded profile section in that the spindle rests laterally, and the clamping piece bears against the side of the spindle opposite the internal thread profile section. This profile section is shaped as an along its length half-cut internal thread, which receives the spindle so that half of its circumference is enclosed by the profile section and its external thread engages at least partially in the Schraubenwindungsabschnitte of the profile section. During the rotation of the spindle, this can thus slide in the female thread profile and move axially.
Vorzugsweise ist das Spannstück mit einer inneren Gleitfläche mit etwa halbkreisförmigem Querschnitt versehen, die an der Spindel anliegt. Unter dieser Gleitfläche kann die Spindel während ihrer Drehung und axialen Verschiebung hinweggleiten. Die Gleitfläche kann zur Anpassung an die konische Mantelfläche der Spindel selbst eine leichte Konizität aufweisen.Preferably, the clamping piece is provided with an inner sliding surface of approximately semicircular cross section, which bears against the spindle. Under this sliding surface, the spindle can slide away during its rotation and axial displacement. The sliding surface can have a slight conicity for adaptation to the conical lateral surface of the spindle itself.
Weiter vorzugsweise begrenzen die Gewindeführung und die Innenfläche des Spannstücks einen konisch zulaufenden Kanal, in welchem die Spindel einliegt. Die Spindel kann somit so gedreht werden, dass sie sich während der Drehung in den Kanal hineinschiebt und diesen weiter aufspreizt, was durch die radiale Beweglichkeit des Spannstücks ermöglicht wird. Die Gewindeführung, insbesondere der Innengewinde-Profilabschnitt, kann in diesem Fall selbst eine leichte Konizität aufweisen und/oder leicht schrägt zur Hauptachse des Schafts liegen.Further preferably, the thread guide and the inner surface of the clamping piece define a tapered channel in which the spindle rests. The spindle can thus be rotated so that it pushes during the rotation in the channel and further spreads, which is made possible by the radial mobility of the clamping piece. The thread guide, in particular the internal thread profile section, may in this case even have a slight conicity and / or be slightly inclined to the main axis of the shaft.
Weiter vorzugsweise ist das Spannstück in einer Aussparung in der Schaftwand axial festgelegt.Further preferably, the clamping piece is axially fixed in a recess in the shaft wall.
Gemäß einer weiteren bevorzugten Ausführungsform ist die Gewindeführung in einem schienenförmigen Führungsblock ausgebildet, auf dem die Spindel gelagert ist und der fest im Schaft einliegt oder einen Teil desselben bildet. Dieser Führungsblock kann beispielsweise bei der Montage des Eckverbinders in den Schaft der Länge nach eingeschoben und in diesem befestigt werden.According to a further preferred embodiment, the thread guide is formed in a rail-shaped guide block on which the spindle is mounted and which rests firmly in the shaft or forms part of the same. This guide block can be inserted, for example during assembly of the corner connector in the shaft lengthwise and secured in this.
Gemäß einer weiteren bevorzugten Ausführungsform der Erfindung wirkt das Spannstück mit Spreizbahnen zusammen, die seitlich am Schaft an entsprechenden Spreizflächen anliegen, wobei die Spreizbahnen und die Spreizflächen derart profiliert sind, dass die Spreizbahnen beim Auflaufen auf die Spreizflächen nach außen gedrückt werden.According to a further preferred embodiment of the invention, the clamping piece cooperates with expansion paths, which rest on the side of the shaft on corresponding expansion surfaces, wherein the spreader webs and the expansion surfaces are profiled in such a way that the spreader belts are pressed outwards on the expansion surfaces.
Derartige Spreizbahnen sind insbesondere aus der europäischen Patentanmeldung
Die Spreizbahnen können vorzugsweise Teile einer Haube mit U-förmigem Querschnitt sein, die den Schaft an drei Seiten umschließt und welche durch das Spannstück anhebbar ist. Das Spannstück kann auch einstückig mit der Haube ausgeformt sein.The expansion paths may preferably be parts of a hood with a U-shaped cross section, which surrounds the shaft on three sides and which can be raised by the tensioning piece. The clamping piece can also be formed integrally with the hood.
Gemäß einer weiteren bevorzugten Ausführungsform der Erfindung ist das dickere Ende der Spindel von außen zugänglich und weist einen Ansatz zur Aufnahme eines Drehwerkzeugs auf. Dieses Drehwerkzeug kann ein manuell bedienbares Werkzeug oder ein maschinelles Werkzeug wie etwa eine Bohrmaschine sein. Der Ansatz kann beispielsweise eine Öffnung sein, in welche ein Zapfen des Drehwerkzeugs eingesteckt wird, um ein Drehmoment auf die Spindel zu übertragen, wie etwa typischerweise eine Öffnung mit sechseckigem Querschnitt zur Aufnahme eines Inbusschlüssels. Eine Drehung des Schlüssels bewirkt dann eine Drehung der Spindel.According to a further preferred embodiment of the invention, the thicker end of the spindle is accessible from the outside and has a projection for receiving a turning tool. This turning tool may be a manually operated tool or a machine tool such as a drill. The approach, for example, be an opening into which a pin of the rotary tool is inserted to a To transmit torque to the spindle, such as typically an opening with hexagonal cross section for receiving an Allen wrench. Rotation of the key then causes rotation of the spindle.
Im folgenden wird ein bevorzugtes Ausführungsbeispiel der vorliegenden Erfindung anhand der Zeichnung näher erläutert.
- Fig. 1
- ist eine perspektivische Ansicht einer Ausführungsform des erfindungsgemäßen Eckverbinders;
- Fig. 2
- ist ein Längsschnitt durch den erfindungsgemäßen Eckverbinder aus
Fig. 1 ; - Fig. 3
- ist eine Ansicht des Eckverbinders aus
Fig. 1 von vorn; - Fig. 4
- ist ein Querschnitt durch den Eckverbinder aus
Fig. 1 , wobei die Schnittebene senkrecht zu derjenigen inFig. 2 steht; - Fig. 5
- zeigt einen Teil der Ausführungsform des erfindungsgemäßen Eckverbinders aus
Fig. 1 mit drei Bauteilen im zerlegten Zustand; und - Fig. 6
- zeigt die Bauteile, die in
Fig. 5 zerlegt dargestellt sind, im zusammengesetzten Zustand.
- Fig. 1
- is a perspective view of an embodiment of the corner connector according to the invention;
- Fig. 2
- is a longitudinal section through the corner connector according to the invention
Fig. 1 ; - Fig. 3
- is a view of the corner connector
Fig. 1 from the beginning; - Fig. 4
- is a cross section through the corner connector
Fig. 1 , wherein the sectional plane perpendicular to that inFig. 2 stands; - Fig. 5
- shows a part of the embodiment of the corner connector according to the invention
Fig. 1 with three components in disassembled condition; and - Fig. 6
- shows the components that are in
Fig. 5 are shown disassembled, in the assembled state.
Der in
Innerhalb des Schafts 12 ist eine Ausnehmung 16 ausgebildet, der zur Oberseite des Schafts und zur Schweißfläche 14 hin offen ist. Innerhalb der Ausnehmung 16 liegt ein Führungsblock 18 ein, der die Form einer Schiene hat und von der Öffnung in der Schweißfläche 14 her in den Schaft 12 einschiebbar ist und in dessen Boden auf nicht näher dargestellte Weise fest verankert ist, so dass der Führungsblock 18 mit dem Schaft 12 eine Einheit bildet. Erfindungsgemäß ist es auch möglich, dass der hier als Führungsblock 18 dargestellte Teil einstückig mit dem Schaft 12 ausgebildet ist.Within the
Die obere Öffnung der Ausnehmung 16 wird durch ein Spannstück 20 verschlossen, das axial im Schaft 12 festgelegt ist, d. h. das Spannstück 20 kann sich nicht entlang der Schaftachse bewegen. Allerdings lässt sich das Spannstück 20 in radialer Richtung, d. h. senkrecht zur Schaftachse anheben oder absenken und liegt diesbezüglich lose in der Ausnehmung 16 ein. Das Spannstück 20 hat eine flache Oberseite 22, die beim Verspannen des Eckverbinders 10 im Hohlprofil gegen die Innenseite des Hohlprofils gedrückt wird.The upper opening of the
Zum Verspannen dient eine Gewindespindel 24, die auf dem Führungsblock 18 drehbar gelagert ist und auf welcher das Spannstück 20 aufliegt. Wie in dem Längsschnitt in
Hingegen ist das Spannstück 20 an seiner Unterseite mit einer inneren Gleitfläche 32 versehen, die etwa einen halbkreisförmigen Querschnitt aufweist. Dieser Querschnitt liegt auf der Oberseite der Gewindespindel 24 auf, so dass das Spannstück 20 an der Seite der Spindel 24 anliegt, die dem Innengewinde-Profilabschnitt 26 gegenüberliegt. Der Innengewinde-Profilabschnitt 26 und die Gleitfläche 32 bilden zwischen sich einen konisch zulaufenden Kanal 34, in welchem die Spindel 24 einliegt.By contrast, the clamping
Durch eine Drehung der Gewindespindel 24 im Uhrzeigersinn bewegt diese sich entlang des Innengewinde-Profilabschnitts 26 axial in diesen Kanal 34 hinein und gleitet während dieser Bewegung unter der Gleitfläche 32 des axial festgelegten Spannstücks 20 weg. Hierdurch wird der Kanal 34 weiter aufgespreizt, und das Spannstück 20 wird seitlich nach oben gedrückt und radial nach außen gespannt. Somit lässt sich durch eine Drehung der Gewindespindel 24 der Eckverbinder 10 innerhalb des Hohlprofils verspannen. Das Drehmoment kann beispielsweise über ein maschinelles Drehwerkzeug wie etwa eine Bohrmaschine ausgeübt werden, die im Bereich der Schweißfläche 14 an das dickere Ende 36 (
Aufgrund ihrer konischen Form übt die Gewindespindel 24 während der Rotation innerhalb des Kanals 34 eine Keilwirkung zum Aufspreizen des Spannstücks 20 aus, so dass dieses unmittelbar nach außen gedrückt wird. Dies stellt ein besonders einfaches Wirkungsprinzip dar, das mit wenigen Bauteilen verwirklicht werden kann.Due to its conical shape, the threaded
Um eine axiale Verschiebbarkeit des Spannstücks 20 gegenüber dem Führungsblock 18 zu begrenzen, sind ihre Kontaktflächen 42,44 (
Bei einer hier nicht näher dargestellten Ausführungsform drückt das Spannstück 20 mit seiner Außenfläche 22 nicht unmittelbar gegen die Innenwand des Hohlprofils, sondern von unten gegen eine Haube mit U-förmigem Querschnitt, dessen Schenkel durch Spreizbahnen gebildet wird, die seitlich an entsprechenden Spreizflächen 50,52 des Schafts 12 anliegen. Wie in
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13192862.4A EP2873795B1 (en) | 2013-11-14 | 2013-11-14 | Corner connectors for door and window frames |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13192862.4A EP2873795B1 (en) | 2013-11-14 | 2013-11-14 | Corner connectors for door and window frames |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2873795A1 true EP2873795A1 (en) | 2015-05-20 |
EP2873795B1 EP2873795B1 (en) | 2018-02-28 |
Family
ID=49641498
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP13192862.4A Not-in-force EP2873795B1 (en) | 2013-11-14 | 2013-11-14 | Corner connectors for door and window frames |
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EP (1) | EP2873795B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2963227A1 (en) * | 2014-06-10 | 2016-01-06 | SC ELKA Prodcom SRL | Stiffening joint with expandable screw-nut mechanism |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9304102U1 (en) * | 1993-03-19 | 1993-05-13 | Grotefeld, Hans Dieter, 4970 Bad Oeynhausen | Corner connectors for door or window frames |
DE102006001045A1 (en) | 2006-01-07 | 2007-07-12 | Hans Dieter Grotefeld | Corner connector for door and window frame, has spindle nut in threaded engagement with threaded spindle, and clamping unit provided in circumferential region of nut and clampable in hollow profile by radial displacement of wedge surface |
EP2011949A2 (en) * | 2007-07-02 | 2009-01-07 | Hans Dieter Grotefeld | Edge joints for door and window frames |
-
2013
- 2013-11-14 EP EP13192862.4A patent/EP2873795B1/en not_active Not-in-force
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9304102U1 (en) * | 1993-03-19 | 1993-05-13 | Grotefeld, Hans Dieter, 4970 Bad Oeynhausen | Corner connectors for door or window frames |
DE102006001045A1 (en) | 2006-01-07 | 2007-07-12 | Hans Dieter Grotefeld | Corner connector for door and window frame, has spindle nut in threaded engagement with threaded spindle, and clamping unit provided in circumferential region of nut and clampable in hollow profile by radial displacement of wedge surface |
EP2011949A2 (en) * | 2007-07-02 | 2009-01-07 | Hans Dieter Grotefeld | Edge joints for door and window frames |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2963227A1 (en) * | 2014-06-10 | 2016-01-06 | SC ELKA Prodcom SRL | Stiffening joint with expandable screw-nut mechanism |
Also Published As
Publication number | Publication date |
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EP2873795B1 (en) | 2018-02-28 |
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