EP3353366B1 - Plug connector and plug connection - Google Patents

Plug connector and plug connection Download PDF

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Publication number
EP3353366B1
EP3353366B1 EP16778215.0A EP16778215A EP3353366B1 EP 3353366 B1 EP3353366 B1 EP 3353366B1 EP 16778215 A EP16778215 A EP 16778215A EP 3353366 B1 EP3353366 B1 EP 3353366B1
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EP
European Patent Office
Prior art keywords
connector
base
plug connector
hollow profile
plug
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EP16778215.0A
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German (de)
French (fr)
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EP3353366A1 (en
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Ralf M. Kronenberg
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    • 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
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/663—Elements for spacing panes
    • E06B3/667—Connectors therefor

Definitions

  • the invention relates to a plug connector and a plug connection with the features of the independent claims.
  • Connectors and plug connections are known from practice. For reasons of insulation, plastic hollow profiles with plug connectors adapted to them are increasingly being used.
  • the CA2 639 201 A1 discloses a connector with retaining elements which are arranged on edge-side groove-like projections between the respective side walls and the connector base, the projections pointing outwards and resting with their curved groove wall on the adjacent transverse wall of the hollow profile.
  • the retaining elements are arranged in this adjacent channel wall and engage with a flat hollow profile floor. Between the channel-like projections on the edge, the connector base is curved inward and faces the interior or cavity of the plug connector.
  • the DE 297 22 771 U1 shows a connector with bottom retaining elements which are arranged in central and cross-connector width reaching bottom indentations.
  • the connector has channel-like depressions arranged between bottom depressions for receiving perforation bosses of the hollow profile.
  • the invention solves this problem with the features in the main claim.
  • the claimed connector technology i.e. the connector and the connector, have the advantage that they allow a better and tighter connection of the hollow profile ends at the connection point and a better and more effective retention of the connector in the hollow profile ends, in particular a gap formation at the joint and connection point between the end faces of the hollow profile ends can be prevented better and more reliably than before.
  • the retaining elements on the bottom of the connector are of particular advantage for the improved and secure hold of the connector. They claw immediately and highly effectively with the hollow profile floor and with an axial and strip-like reinforcement element located there.
  • the retaining elements are particularly effective immediately when a pull-out force directed against the direction of insertion is exerted on the connector. Delayed clawing, which previously occurred with some plug connections, and the formation of gaps associated therewith can be prevented.
  • the retaining elements which are preferably designed as spring tongues and protrude obliquely outwards towards the center of the connector, can withstand a pull-out force by means of a form fit, in particular by cutting a Edge of the spring tongue in the surface of the reinforcement element, effectively counteract.
  • the connector is made of metal and is designed in particular as a stamped and bent part made of sheet metal, preferably sheet steel.
  • the spring lug can then be harder than the reinforcing element, which is made of plastic or is encased in plastic.
  • the reinforcement element can contain an insert made of a suitable material, in particular metal. This can be partially or completely embedded in the material of the hollow profile floor.
  • the retaining elements on the base are arranged on the longitudinal edge of the connector base.
  • the floor-side retaining elements are preferably arranged directly adjacent to the longitudinal edge of the connector floor and at its transition point to the connector side walls.
  • the retaining elements on the base are arranged in a depression on the longitudinal edge of the connector base, which is directed towards the interior or cavity of the plug connector. It is also favorable if they interact with a reinforcement element designed as an elevation.
  • the floor-side retaining elements interact with an edge-side reinforcement element on the hollow profile, which is positioned in a suitable manner. It can be located, for example, in a channel-like depression or groove on the hollow profile floor. Alternatively, it can be arranged flush with the upper side of a flat hollow profile floor. It can also form or be arranged in a small bump.
  • the edge-side arrangement of the floor-side retaining elements and the reinforcing elements also have the advantage that deformations of the plugged hollow profile ends can be avoided or at least reduced to the greatest possible extent. This is particularly the case for connectors made of plastic.
  • the reinforcement elements close to the edge also cause the ends of the hollow profile to be stiffened in this edge area and at the transition point between the bottom wall and side wall of the ends of the hollow profile.
  • retaining elements are present on the longitudinal edge of the connector legs adjoining a connector center on both sides.
  • the retaining elements on the bottom are arranged individually on one or both longitudinal edges over the length of the plug connector and on both sides of the center of the connector. This has advantages over a dense row arrangement of a large number of retaining elements.
  • the individual or the few floor-side retaining elements are spaced a greater distance from the center of the connector and the connection point of the hollow profile ends there than has been customary up to now.
  • the retaining element or elements are preferably located approximately halfway along the length of the respective connector leg or are even closer to the respective end face of the connector leg.
  • Such an arrangement spaced apart from the center of the connector and the abutment point of the hollow profile ends has various advantages. On the one hand, it ensures a particularly good, quick and effective grip on the reinforcement element and prevents pull-out movements. On the other hand, will This also distances any hollow profile deformations from the critical connection or joint point of the plug connection. The faces of the hollow profile ends are not deformed and can retain their original geometry with improved safety. This also enables the ends of the hollow profile to collide securely and without a gap, with a high degree of tightness. An axial offset of the retaining elements on both sides on the respective connector legs additionally improves the retention and the deformation situation.
  • the center finding of the plug connector is designed as a fixed stop. It is also an advantage if the fixed stop can dig into the end faces of the hollow section when it is pushed on. This can also ensure particularly quick and secure clawing of the floor-side retaining elements. The ends of the hollow section can be clamped between the center stop and the floor-side retaining element, which is at a distance from it.
  • a fixed stop arranged on the free edge of the side wall also ensures high flexural rigidity and breaking strength of the connector at the particularly stressed joint or connection point of the hollow profile ends.
  • the channel-like depression on one of the two longitudinal edges of the connector base can form a groove or step that is open at the bottom and at the side.
  • the transition point from the connector base to the respective side wall can also be recessed. This arrangement is also favorable for bringing about said height compensation via the floor-side retaining elements.
  • the bottom area of the recess and the adjoining side wall can yield better and more resiliently for compensation purposes.
  • the arrangement of edge depressions on the connector base can also cause the connector to be stiffened, in particular against bending moments. This is particularly advantageous in the case of a metallic stamped and bent part with deformation of the thin-walled connector base.
  • the inner or central area of the connector base can be solid and flat. It can lie flat and tight against the hollow profile floor, which is also flat, and cover any ventilation openings there, as well as sealingly bridge the joint or connection point of the hollow profile ends.
  • the inner or middle area of the connector base can be raised or recessed.
  • the plug connector has further retaining elements, which can be designed as spring lugs or spring tongues and which are preferably arranged on the free or upper edge of the side walls.
  • the retaining elements can be set out transversely to the side wall or to the side and optionally in the direction in which the side wall extends or upwards. They can act on the respective side wall and possibly also on the roof wall of the attached end of the hollow profile or an inclined transition point between the side wall and roof wall.
  • the retaining elements which are preferably arranged in multiples on the side walls of each connector leg, ensure lateral tolerance compensation in the attached end of the hollow profile. They are also preferably spaced far axially from the connector center. You can also have a height offset and / or a lateral offset to improve the engagement effect on the inner walls of the hollow profile ends.
  • the invention relates to a connector (1) for hollow profile ends (3,4) of spacers in insulating glazing.
  • the invention also relates to a plug-in connection (2) formed by the plug-in connector (1) and the plugged-on hollow profile ends (3, 4) and a connection method.
  • the frame-shaped spacer is preferably formed from a single hollow profile which is bent over several times and connected to a straight profile section with the profile ends (3,4) and a plug connector (1) inserted there to form a closed frame.
  • the connector (1) is designed as a straight connector.
  • the connector (1) can be designed as an angle connector or corner angle, which is arranged at the corners of the spacer frame and inserted into straight hollow profile sections.
  • the plug connector (1) has a connector center (13) and connector legs (14, 15) extending axially from it on both sides, which are aligned with one another in the case of a straight connector or at an angle deviating from one another by 180° in the case of an angle connector are.
  • figure 1 shows the closed plug-in connection (2), with the hollow profile ends (3,4) each being plugged onto the associated connector leg (14,15) in an insertion direction (29).
  • the ends of the hollow profile (3,4) abut tightly and without a gap with their straight faces at a joint or connection point (5).
  • the connector (1) claws by means of retaining elements (19,24) on one or more hollow profile insides and prevents one or both ends (3,4) of the hollow profile from being pulled off the connector (1) in the opposite direction to the insertion direction (29). This opposite direction is called the pull-out direction.
  • the hollow profiles have, for example, an essentially rectangular cross-sectional shape with a bottom wall (7) pointing towards the inside of the pane, side walls (12) adjoining it on both sides and a roof wall (11). Between the side walls (12) and the roof wall (11) an in figure 1 , 2 and 4 shown oblique transition point may be present.
  • the bottom wall (7) or the so-called hollow profile floor there can be one or more passage openings through which a connection can be established between a granulated desiccant present in the hollow profile (3,4) and a gas in the interior of the pane.
  • the passage openings shown can preferably be arranged centrally in an axial row parallel to the longitudinal axis (6) of the hollow profiles (3,4) and can be designed, for example, as slots.
  • the hollow profile or profiles (3,4) are preferably made of plastic. They can be made entirely or partially of plastic. In particular, they can also be designed as so-called hybrid profiles, which are designed as composite bodies made of plastic and metal.
  • the hollow profile or profiles (3, 4) have a reinforcing element (9), e.g. on the hollow profile base (7) and preferably on its one or both longitudinal edges (8).
  • This reinforcement element (9) interacts with the connector (1) in the manner described below.
  • the reinforcing element (9) is designed like a strip and is aligned axially or along the longitudinal axis (6). It preferably extends over the entire length of the hollow profile and is designed as a continuous strip.
  • the axial reinforcement element (9) is preferably designed as an elevation on the bottom of the hollow profile. The elevation is preferably directed toward the interior of the profile and extends perpendicularly to the main floor plane.
  • the axial strip-like reinforcement element (9) is designed, for example, as a rib on the hollow profile floor (7).
  • the rib can be molded or attached to the floor material.
  • the reinforcing element (9) or the rib can be made of the same material as the hollow profile floor (7).
  • the axial strip-like reinforcement element (9) has a stiffening insert (10).
  • This can consist of a resistant material, in particular metal.
  • the insert material can have a higher strength than the bottom material and can be made of a different material.
  • the insert (10) can be partially or completely covered with another material, in particular plastic. It can be integrated into said rib.
  • the insert (10) can have any suitable shape and extent.
  • it can be designed as a straight round bar or flat bar.
  • the insert (10) is designed as a straight metallic round bar, in particular as a rod or wire. This can be a drawn wire or a wire that has been twisted from several individual wires or strands and has an uneven surface.
  • the insert (10) can according to figure 1 and 2 be embedded in the material of the hollow profile floor (7) or reinforcing element (9), which is preferably made of plastic, and be partially or completely surrounded by it.
  • the bare top of the insert (10) protrudes from the floor material. In another embodiment, it can be covered with a relatively soft plastic.
  • the cross-sectional shape of the connector (1) is adapted to the inner shape of the ends (3, 4) of the hollow profile. It has, for example, an open U-shape or a closed box shape in cross-section.
  • the connector (1) has a base (16) with side walls or side webs (22) at the edge.
  • the connector (1) also has a center finder (25) and has several retaining elements (19,24), which can be designed and arranged differently if necessary.
  • the base (16) is preferably directed towards the hollow profile base (7) and rests there.
  • the connector (1) can be made of any suitable material. It is preferably designed as a metal part, in particular as a stamped and bent part made of sheet steel.
  • the connector (1) has a groove-like depression (18) on one or both longitudinal edges (17) of the base (16) with a retaining element (19) protruding outwards from the base (16).
  • the retaining element (19) is provided and designed for clawing against the pull-out direction with an axial, strip-like reinforcing element (9) arranged on the corresponding longitudinal edge (8) of the hollow profile base (7).
  • the retaining element (19) is preferably designed as a spring tongue.
  • the groove-like recess (18) on the edge is aligned axially or extends in the longitudinal direction (6). It can be formed in any suitable manner, for example by deforming, in particular bending or embossing, a thin-walled base material.
  • the recess (18) is directed towards the interior or cavity (28) of the connector (1).
  • the interior space (28) is preferably axially continuous and allows the granulated desiccant to flow through the connector (1) and over the joint or connection point (5).
  • the channel-like depression (18) has a step-shaped cross section. It has, for example, a shape that is open at the bottom and at the side, thereby forming a step or throat.
  • the groove-like depression (18) preferably extends continuously along the connector legs (14, 15) and, if necessary, over the center (13) of the profile.
  • the channel-like depression can have a different cross-sectional shape, for example a U-shape or V-shape.
  • the bottom (16) of the connector (1) has a raised inner area (21) between the edge depressions (18). This is preferably solid and has a flat outside. The outside of the raised inner area (21) rests flat on the hollow profile base (7), which is preferably also flat in this area.
  • the retaining element (19) is arranged on the recessed bottom area of the channel-like depression (18).
  • the recess (18) and the retaining element (19) preferably have substantially the same width.
  • the resilient, tongue-like retaining element (19) can be designed in any suitable manner. It has a tongue wall that extends from the bottom area of the depression (18) and is directed obliquely outwards or downwards. This can have a straight, flat or slightly curved shape.
  • the spring tongue (19) is punched out of the bottom area of the recess (18) and is set out at an angle.
  • Figure 6, 7 and 9 clarify this training.
  • the retaining element (19) or the spring tongue is directed towards the middle of the connector (13) and is resiliently pressed down when the hollow profile end (3,4) is pushed on.
  • the floor-side retaining element (19) has a free edge (20) which is provided and designed for digging in or cutting against the pull-out direction on the associated reinforcing element (9).
  • This free edge (20) can be sharp-edged. It can be designed as a swept or curved cutting tip or as a sloping or straight cutting edge.
  • a single bottom-side retaining element (19) is arranged in the exemplary embodiments shown.
  • a few, in particular two or three, floor-side retaining elements (19) can be arranged on said longitudinal edges (17) or depressions (18) of the respective connector legs (14, 15).
  • the connector (1) has a total of four retaining elements (19) on the bottom.
  • the bottom retaining elements (19) are each arranged at a considerable distance from the center (13) of the connector. For example, they are arranged on the connector legs (14, 15) approximately halfway between the connector center (13) and the associated connector end face (27) or closer to the connector end face (27) than to the connector center (13).
  • the spacing of the retaining elements (19) from the connector center (13) is preferably greater than from the adjacent connector end face (27).
  • the individual retaining elements (19) arranged on both sides of the connector legs (14, 15) each have a mutual axial offset.
  • Figure 6 and 7 clarify this training.
  • the left and right retaining elements (19) on the connector legs (14, 15) can each be at the same height be arranged.
  • Corresponding configurations with or without an axial offset are also possible with a multiple arrangement of floor-side retaining elements (19) on the longitudinal edge or edges of the respective connector leg (14, 15).
  • the channel-like depressions (18) and the floor-side retaining elements (19) are arranged directly on the respective longitudinal edge (17) of the connector floor (16).
  • the depression (18) and the retaining elements (19) also connect to the transition point from the base (16) to the side wall (22).
  • the width dimensions of the channel-like depressions (18) and the raised inner area (21) are also adapted to the dimensions of the hollow profile floor (7) and in particular to the shape and position of the edge-side reinforcing elements (9).
  • the groove-like recess (18) overlaps the respective reinforcement element (9) and can also rest on it if necessary.
  • the side walls (22) start on both sides from the longitudinal edges (17) of the base (16) and extend upwards or transversely to the base (16). In the case of the preferred step-shaped cross-sectional configuration of the depressions (18), the side walls (22) adjoin the bottom area of the depression (18). In the case of a U-shaped recess cross-section, the side walls (22) are drawn further down to the raised inner bottom area (21).
  • One or more further retaining elements (24) are arranged on the side walls (22). They are preferably located on the respective free edge (23) of the side wall (22).
  • the other retaining elements (24) can also have a considerable axial distance from the connector center (13). They are preferably around halfway Leg length or more distanced from the connector center (13). In the area of the middle of the connector (13), the side walls are solid and designed with the maximum web height.
  • retaining elements (24) are arranged one behind the other at an axial distance on the connector legs (14, 15) and their side wall areas (22).
  • the other retaining elements (24) can be in the form of spring lugs which are cut out of the upper side wall area and are set out at least laterally.
  • the further retaining elements (24) lined up leg by leg can have the same or different shape. In particular, they are in accordance with figure 6 differently far across to the side wall plane and thus have a lateral offset. Starting from the connector end face (27), the projection width of the retaining elements (24) following one another in the axial direction increases.
  • the retaining elements (24) arranged axially in a leg-by-leg manner can also have a height offset in relation to the connector base (16) with their active points. As a result, the active points act on the inside of the respective hollow profile side wall at different high points.
  • the retaining elements (24) that are free and attached to the side wall (22) on only one side can have a rectangular or trapezoidal shape, for example.
  • the grouped or leg-wise lined-up spring lugs (24) can also according to Figure 5 to 10 have different tilting or rotating positions. As a result, they are oriented at different angles to the longitudinal axis (6).
  • the respective spring lugs (24) closest to the connector center (13) have a stronger inclined position than the spring lugs (24) following in the axial direction to the connector end face (27).
  • Each of the end face (27) closest to the adjacent spring lug (24) has the steepest orientation and is formed almost perpendicular to the ground plane (16). This slanting or twisting of the main plane of the spring lug relative to the main plane of the side wall increases the rigidity of the further retaining elements (24) or spring lugs from the connector end face (27) to the connector center (13).
  • the effective area gets an increasingly pointed shape.
  • the point of action is designed as a substantially upright edge of the spring lug. Due to said twisting, the point of action is increasingly shortened to the upper corner or tip of the spring nose (24).
  • the center finder (25) can be designed in any suitable way. In particular, it can be designed to be fixed or resilient. It is arranged at the connector center (13).
  • the center finder (25) is designed as a fixed center stop that can dig into the end faces of the plugged hollow profile ends (3,4).
  • the center stop is preferably designed as a mini stop and has a stop lug (26) on the connector center (13).
  • the stop lug (26) is arranged on the side walls (22) at their upper free edge (23) and extends upwards in the main plane of the side wall.
  • the slender stop lug (26) has steep flanks that press into the front faces of the profile when it is inserted. This can bring about an at least partially elastic deformation of the front wall.
  • the elastic restoring force can ensure tension against the floor-side retaining elements (19) and promote their clawing and preferably form-fitting engagement or incision in the respective reinforcement element (9).
  • the further retaining elements (24) act on the side walls (12) of the hollow profile and on the groove of the inclined transition point to the roof (11) of the hollow profile.
  • the retaining elements (24) can also be slightly bent or angled at the top with their active points.
  • the stop lugs (26) also interact with this sloping transition area. In addition, they only extend over part of the wall thickness of the hollow profile, so that a tight joint or tight contact with the connection point (5) is achieved in the wall area of the end walls above it.
  • the reinforcing element (9) it is possible for the reinforcing element (9) to be arranged in a channel-like depression on the respective longitudinal edge (8) of the hollow profile base (7) and thereby possibly slightly spaced in height from the connector base (16).
  • the hollow profile base (7) and the connector base (16) are directed towards the inside of the spacer frame and the insulating glass pane.
  • the arrangement can be reversed, with both bases (7, 16) pointing to the outside of the frame and pane and are designed accordingly.
  • the individually illustrated reinforcement elements (9) or their inserts (10) can alternatively be present in multiples, e.g. in parallel double inserts (10).
  • the floor-side retaining elements (19), in particular their spring tongues can be offset transversely to the longitudinal axis (6) or arranged multiple times next to one another. You can also be divided.
  • the components of the plug connector (1) and the plug connection (2), which are written in a single arrangement can be present in a suitable multiple arrangement.
  • the floor-side retaining elements (19) can be designed in another suitable way instead of as spring tongues.
  • the channel-like depression (18) or the aforementioned elevation with a floor-side retaining element (19) in a locally delimited manner and, if necessary, to arrange it several times. Outside these areas, the respective edge area (17) of the connector base (16) can have the same or similar design as the inner area (21).
  • the connector (1) can have a box-shaped, closed cross-section with an additional roof area.
  • the cavity (28) can be closed to block the flow of granules.
  • the other retaining elements (24) can be omitted or designed and arranged in a different way.
  • the inner or middle floor area (21) can be interrupted or perforated in places or also profiled. It can have further elements, for example resilient retaining elements directed inwards and towards the hollow profile roof (11).
  • the connector (1) can consist of a particularly high-strength and stiffened plastic material or of a composite material. It can also be designed as a metal casting.
  • the reinforcement elements (9) do not have to form an elevation, but can be embedded in the otherwise flat hollow profile floor. They can be formed by the inlays (10) embedded in the base (7).
  • the center finder (25) can be designed and arranged differently. It can be formed, for example, by resilient stop lugs or by wedge-shaped fixed stops that act axially on one side and are arranged diagonally offset from one another.
  • the center finding (25) is designed in a correspondingly different way and is formed, for example, by flared stop edges on the corner area of the plug connector (1).

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Description

Die Erfindung betrifft einen Steckverbinder und eine Steckverbindung mit den Merkmalen der selbstständigen Ansprüche.The invention relates to a plug connector and a plug connection with the features of the independent claims.

Steckverbinder und Steckverbindungen sind aus der Praxis bekannt. Aus Isoliergründen werden vermehrt Hohlprofile aus Kunststoff mit hieran angepassten Steckverbindern eingesetzt.Connectors and plug connections are known from practice. For reasons of insulation, plastic hollow profiles with plug connectors adapted to them are increasingly being used.

Die CA 2 639 201 A1 offenbart einen Steckverbinder mit Rückhalteelementen, die an randseitigen rinnenartigen Vorsprüngen zwischen den jeweiligen Seitenwänden und dem Verbinderboden angeordnet sind, wobei die Vorsprünge nach außen weisen und mit ihrer gebogenen Rinnenwandung an der benachbarten Querwand des Hohlprofils anliegen. In dieser anliegenden Rinnenwandung sind die Rückhalteelemente angeordnet und treten mit einem ebenen Hohlprofilboden in Eingriff. Zwischen den randseitigen rinnenartigen Vorsprüngen ist der Verbinderboden nach innen gewölbt und weist zum Innenraum bzw. Hohlraum des Steckverbinders.the CA2 639 201 A1 discloses a connector with retaining elements which are arranged on edge-side groove-like projections between the respective side walls and the connector base, the projections pointing outwards and resting with their curved groove wall on the adjacent transverse wall of the hollow profile. The retaining elements are arranged in this adjacent channel wall and engage with a flat hollow profile floor. Between the channel-like projections on the edge, the connector base is curved inward and faces the interior or cavity of the plug connector.

Bei den Steckverbindern der DE 20 2008 013 046 U1 sind bodenseitige Rückhalteelemente im mittleren, ebenen Bodenbereich angeordnet.At the connectors of DE 20 2008 013 046 U1 floor-side retaining elements are arranged in the middle, level floor area.

Die DE 297 22 771 U1 zeigt einen Steckverbinder mit bodenseitigen Rückhalteelementen, die in mittigen und quer über die Verbinderbreite reichenden Bodenvertiefungen angeordnet sind. Der Steckverbinder weist zwischen Bodenvertiefungen angeordnete rinnenartige Vertiefungen zur Aufnahme von Perforationsbuckeln des Hohlprofils auf.the DE 297 22 771 U1 shows a connector with bottom retaining elements which are arranged in central and cross-connector width reaching bottom indentations. The connector has channel-like depressions arranged between bottom depressions for receiving perforation bosses of the hollow profile.

Es ist Aufgabe der vorliegenden Erfindung, eine verbesserte Steckverbindungstechnik aufzuzeigen.It is the object of the present invention to provide an improved plug-in connection technology.

Die Erfindung löst diese Aufgabe mit den Merkmalen im Hauptanspruch.The invention solves this problem with the features in the main claim.

Die beanspruchte Steckverbindungstechnik, d.h. der Steckverbinder und die Steckverbindung, haben den Vorteil, dass sie eine bessere und dichtere Verbindung der Hohlprofilenden an der Verbindungsstelle sowie einen besseren und wirksameren Rückhalt des Steckverbinders in den Hohlprofilenden ermöglichen, insbesondere kann eine Spaltbildung an der Stoß- und Verbindungsstelle zwischen den Stirnseiten der Hohlprofilenden besser und sicherer als bisher verhindert werden. Eine besondere Eignung besteht für Hohlprofile aus Kunststoff. Diese können eine reduzierte mechanische Festigkeit aufweisen und verformungsempfindlich sein.The claimed connector technology, i.e. the connector and the connector, have the advantage that they allow a better and tighter connection of the hollow profile ends at the connection point and a better and more effective retention of the connector in the hollow profile ends, in particular a gap formation at the joint and connection point between the end faces of the hollow profile ends can be prevented better and more reliably than before. A particular suitability exists for hollow profiles made of plastic. These can have reduced mechanical strength and be sensitive to deformation.

Die bodenseitigen Rückhalteelemente des Steckverbinders sind für den verbesserten und sicheren Halt des Steckverbinders von besonderem Vorteil. Sie verkrallen sich sofort und hochwirksam mit dem Hohlprofilboden und mit einem dortigen axialen und leistenartigen Verstärkungselement. Die Rückhalteelemente sind insbesondere sofort wirksam, wenn eine gegen die Einsteckrichtung gerichtete Auszugskraft auf die Steckverbindung ausgeübt wird. Ein bisher bei manchen Steckverbindungen auftretendes verzögertes Verkrallen und eine damit einhergehende Spaltbildung können verhindert werden.The retaining elements on the bottom of the connector are of particular advantage for the improved and secure hold of the connector. They claw immediately and highly effectively with the hollow profile floor and with an axial and strip-like reinforcement element located there. The retaining elements are particularly effective immediately when a pull-out force directed against the direction of insertion is exerted on the connector. Delayed clawing, which previously occurred with some plug connections, and the formation of gaps associated therewith can be prevented.

Die bevorzugt als Federzungen ausgebildeten und vom Boden schräg nach außen zur Verbindermitte abstehenden Rückhalteelemente können sich einer Auszugskraft durch Formschluss, insbesondere durch Einschneiden einer Randkante der Federzunge in der Oberfläche des Verstärkungselement, wirksam entgegenstemmen. Hierfür ist es günstig, wenn der Steckverbinder aus Metall besteht und insbesondere als Stanz- und Biegeteil aus Metallblech, bevorzugt Stahlblech ausgebildet ist. Die Federnase kann dann härter als das aus Kunststoff bestehende oder mit Kunststoff ummantelte Verstärkungselement sein. Zur Abstützung der Haltekräfte kann das Verstärkungselement eine Einlage aus einem geeigneten Material, insbesondere Metall, enthalten. Diese kann teilweise oder vollständig in das Material des Hohlprofilbodens eingebettet sein.The retaining elements, which are preferably designed as spring tongues and protrude obliquely outwards towards the center of the connector, can withstand a pull-out force by means of a form fit, in particular by cutting a Edge of the spring tongue in the surface of the reinforcement element, effectively counteract. For this purpose, it is favorable if the connector is made of metal and is designed in particular as a stamped and bent part made of sheet metal, preferably sheet steel. The spring lug can then be harder than the reinforcing element, which is made of plastic or is encased in plastic. To support the holding forces, the reinforcement element can contain an insert made of a suitable material, in particular metal. This can be partially or completely embedded in the material of the hollow profile floor.

Für die Rückhaltefunktion des Steckverbinders und der Steckverbindung ist es von besonderem Vorteil, dass die bodenseitigen Rückhalteelemente am Längsrand des Verbinderbodens angeordnet sind. Die bodenseitigen Rückhalteelemente sind dabei bevorzugt unmittelbar angrenzend am Längsrand des Verbinderbodens und an dessen Übergangsstelle zu den Verbinderseitenwänden angeordnet.For the retaining function of the plug connector and the plug connection, it is of particular advantage that the retaining elements on the base are arranged on the longitudinal edge of the connector base. The floor-side retaining elements are preferably arranged directly adjacent to the longitudinal edge of the connector floor and at its transition point to the connector side walls.

Erfindungsgemäß sind die bodenseitigen Rückhalteelemente in einer zum Innenraum bzw. Hohlraum des Steckverbinders gerichteten Vertiefung am Längsrand des Verbinderbodens angeordnet. Es ist außerdem günstig, wenn sie dabei mit einem als Erhebung ausgebildeten Verstärkungselement zusammenwirken.According to the invention, the retaining elements on the base are arranged in a depression on the longitudinal edge of the connector base, which is directed towards the interior or cavity of the plug connector. It is also favorable if they interact with a reinforcement element designed as an elevation.

Die bodenseitigen Rückhalteelemente wirken dabei mit einem randseitigen Verstärkungselement am Hohlprofil zusammen, das in geeigneter Weise positioniert ist. Es kann sich z.B. in einer rinnenartigen Vertiefung oder Nut am Hohlprofilboden befinden. Es kann alternativ in einem ebenen Hohlprofilboden bündig mit dessen Oberseite angeordnet sein. Es kann auch eine kleine Erhebung bilden oder in einer solchen angeordnet sein.The floor-side retaining elements interact with an edge-side reinforcement element on the hollow profile, which is positioned in a suitable manner. It can be located, for example, in a channel-like depression or groove on the hollow profile floor. Alternatively, it can be arranged flush with the upper side of a flat hollow profile floor. It can also form or be arranged in a small bump.

Die randseitige Anordnung der bodenseitigen Rückhalteelemente und der Verstärkungselemente haben außerdem den Vorteil, dass Verformungen der aufgesteckten Hohlprofilenden vermieden oder zumindest weitestgehend reduziert werden können. Dies ist besonders für Steckverbinder aus Kunststoff der Fall. Die randnahen Verstärkungselemente bewirken außerdem eine Versteifung der Hohlprofilenden in diesem Randbereich und an der Übergangsstelle zwischen Boden- und Seitenwand der Hohlprofilenden.The edge-side arrangement of the floor-side retaining elements and the reinforcing elements also have the advantage that deformations of the plugged hollow profile ends can be avoided or at least reduced to the greatest possible extent. This is particularly the case for connectors made of plastic. The reinforcement elements close to the edge also cause the ends of the hollow profile to be stiffened in this edge area and at the transition point between the bottom wall and side wall of the ends of the hollow profile.

Ferner ist es günstig, wenn am Längsrand der beidseits an eine Verbindermitte anschließenden Verbinderschenkel jeweils nur eine geringe Zahl von bodenseitigen Rückhalteelementen vorhanden ist. Vorzugsweise ist an jedem Längsrand jedes Verbinderschenkels nur jeweils ein einzelnes bzw. einziges Rückhalteelement vorhanden. Die bodenseitigen Rückhalteelemente sind an einem oder beiden Längsrändern jeweils über die Länge des Steckverbinders vereinzelt und beidseits der Verbindermitte angeordnet. Dies hat Vorteile gegenüber einer dichten Reihenanordnung von einer Vielzahl von Rückhalteelementen.Furthermore, it is advantageous if only a small number of floor-side retaining elements are present on the longitudinal edge of the connector legs adjoining a connector center on both sides. There is preferably only a single retaining element on each longitudinal edge of each connector leg. The retaining elements on the bottom are arranged individually on one or both longitudinal edges over the length of the plug connector and on both sides of the center of the connector. This has advantages over a dense row arrangement of a large number of retaining elements.

Ferner ist es günstig, wenn das einzelne oder die wenigen bodenseitigen Rückhalteelemente von der Verbindermitte und der dortigen Verbindungsstelle der Hohlprofilenden in einem größeren Maß distanziert sind, als dies bisher üblich ist. Das oder die Rückhalteelemente befinden sich vorzugsweise etwa auf halber Länge des jeweiligen Verbinderschenkels oder sind noch weiter bis zur jeweiligen Stirnseite des Verbinderschenkels angenähert.Furthermore, it is advantageous if the individual or the few floor-side retaining elements are spaced a greater distance from the center of the connector and the connection point of the hollow profile ends there than has been customary up to now. The retaining element or elements are preferably located approximately halfway along the length of the respective connector leg or are even closer to the respective end face of the connector leg.

Eine solche von der Verbindermitte und der Stoßstelle der Hohlprofilenden distanzierte Anordnung hat verschiedene Vorteile. Sie sorgt einerseits für eine besonders gute, schnelle und wirksame Verkrallung am Verstärkungselement und verhindert Auszugsbewegungen. Andererseits werden hierdurch auch etwaige Hohlprofilverformungen von der kritischen Verbindungs- oder Stoßstelle der Steckverbindung distanziert. Die Stirnseiten der Hohlprofilenden werden nicht verformt und können ihre ursprüngliche Geometrie mit verbesserter Sicherheit behalten. Hierdurch wird auch ein sicheres und spaltfreies stirnseitiges Zusammenstoßen der Hohlprofilenden mit hoher Dichtigkeit ermöglicht. Ein axialer Versatz der beidseitigen Rückhalteelemente an den jeweiligen Verbinderschenkeln verbessert zusätzlich den Rückhalt und die Verformungssituation.Such an arrangement spaced apart from the center of the connector and the abutment point of the hollow profile ends has various advantages. On the one hand, it ensures a particularly good, quick and effective grip on the reinforcement element and prevents pull-out movements. On the other hand, will This also distances any hollow profile deformations from the critical connection or joint point of the plug connection. The faces of the hollow profile ends are not deformed and can retain their original geometry with improved safety. This also enables the ends of the hollow profile to collide securely and without a gap, with a high degree of tightness. An axial offset of the retaining elements on both sides on the respective connector legs additionally improves the retention and the deformation situation.

Ferner ist es günstig, wenn die Mittenfindung des Steckverbinders als Festanschlag ausgebildet ist. Es ist außerdem von Vorteil, wenn der Festanschlag sich in die Stirnseiten der Hohlprofilenden beim Aufstecken eingraben kann. Dies kann außerdem für eine besonders schnelle und sichere Verkrallung der bodenseitigen Rückhalteelemente sorgen. Die Hohlprofilenden können quasi zwischen Mittenanschlag und dem hiervon distanzierten bodenseitigen Rückhalteelement verspannt werden. Ein am freien Seitenwandrand angeordneter Festanschlag sorgt außerdem für eine hohe Biegesteifigkeit und Bruchfestigkeit des Steckverbinders an der besonders belasteten Stoß- bzw. Verbindungsstelle der Hohlprofilenden.Furthermore, it is favorable if the center finding of the plug connector is designed as a fixed stop. It is also an advantage if the fixed stop can dig into the end faces of the hollow section when it is pushed on. This can also ensure particularly quick and secure clawing of the floor-side retaining elements. The ends of the hollow section can be clamped between the center stop and the floor-side retaining element, which is at a distance from it. A fixed stop arranged on the free edge of the side wall also ensures high flexural rigidity and breaking strength of the connector at the particularly stressed joint or connection point of the hollow profile ends.

Die rinnenartige Vertiefung an einer der beiden Längsrändern des Verbinderbodens kann eine nach unten und seitlich offene Kehle oder Stufe bilden. Die Übergangsstelle vom Verbinderboden in die jeweilige Seitenwand kann ebenfalls vertieft angeordnet sein. Diese Anordnung ist auch günstig, über die bodenseitigen Rückhalteelemente den besagten Höhenausgleich zu bewirken. Der Bodenbereich der Vertiefung und die anschließende Seitenwand können besser und federnd zu Kompensationszwecken nachgeben.The channel-like depression on one of the two longitudinal edges of the connector base can form a groove or step that is open at the bottom and at the side. The transition point from the connector base to the respective side wall can also be recessed. This arrangement is also favorable for bringing about said height compensation via the floor-side retaining elements. The bottom area of the recess and the adjoining side wall can yield better and more resiliently for compensation purposes.

Die Anordnung von randseitigen Vertiefungen am Verbinderboden kann außerdem eine Versteifung des Steckverbinders, insbesondere gegen Biegemomente, bewirken. Dies ist insbesondere bei einem metallischen Stanz- und Biegeteil mit Verformung des dünnwandigen Verbinderbodens von Vorteil.The arrangement of edge depressions on the connector base can also cause the connector to be stiffened, in particular against bending moments. This is particularly advantageous in the case of a metallic stamped and bent part with deformation of the thin-walled connector base.

Der innere bzw. mittlere Bereich des Verbinderbodens kann massiv und eben ausgebildet sein. Er kann plan und dicht am ebenfalls ebenen Hohlprofilboden anliegen und etwaige dortige Belüftungsöffnungen abdecken sowie die Stoß- bzw. Verbindungsstelle der Hohlprofilenden dichtend überbrücken. Der innere bzw. mittlere Bereich des Verbinderbodens kann erhaben oder vertieft angeordnet sein.The inner or central area of the connector base can be solid and flat. It can lie flat and tight against the hollow profile floor, which is also flat, and cover any ventilation openings there, as well as sealingly bridge the joint or connection point of the hollow profile ends. The inner or middle area of the connector base can be raised or recessed.

Der Steckverbinder weist weitere Rückhalteelemente auf, die als Federnasen oder Federzungen ausgebildet sein können und die vorzugsweise am freien bzw. oberen Rand der Seitenwände angeordnet sind. Die Rückhalteelemente können quer zur Seitenwand bzw. seitlich und gegebenenfalls in Erstreckungsrichtung der Seitenwand bzw. nach oben ausgestellt sein. Sie können auf die jeweilige Seitenwand und gegebenenfalls auch auf die Dachwand des aufgesteckten Hohlprofilendes oder eine schräge Übergangsstelle zwischen Seiten- und Dachwand wirken. Die vorzugsweise an den Seitenwänden jedes Verbinderschenkels jeweils mehrfach angeordneten Rückhalteelemente sorgen für einen seitlichen Toleranzausgleich im aufgesteckten Hohlprofilende. Sie sind ebenfalls vorzugsweise axial weit von der Verbindermitte distanziert. Sie können ferner einen Höhenversatz und/oder einen Seitenversatz zur Verbesserung der Eingriffswirkung an den Innenwänden der Hohlprofilenden aufweisen.The plug connector has further retaining elements, which can be designed as spring lugs or spring tongues and which are preferably arranged on the free or upper edge of the side walls. The retaining elements can be set out transversely to the side wall or to the side and optionally in the direction in which the side wall extends or upwards. They can act on the respective side wall and possibly also on the roof wall of the attached end of the hollow profile or an inclined transition point between the side wall and roof wall. The retaining elements, which are preferably arranged in multiples on the side walls of each connector leg, ensure lateral tolerance compensation in the attached end of the hollow profile. They are also preferably spaced far axially from the connector center. You can also have a height offset and / or a lateral offset to improve the engagement effect on the inner walls of the hollow profile ends.

In den Unteransprüchen sind weitere vorteilhafte Ausgestaltungen der Erfindung angegeben.Further advantageous refinements of the invention are specified in the dependent claims.

Die Erfindung ist in den Zeichnungen beispielhaft und schematisch dargestellt. Im Einzelnen zeigen:

Figur 1: In
einer perspektivischen Ansicht eine Steckverbindung aus einem Steckverbinder und zwei aufgesteckten Hohlprofilenden,
Figur 2:
eine abgebrochene perspektivische Ansicht eines Hohlprofilendes mit einem eingesteckten Steckverbinder,
Figur 3 und 4:
eine Seitenansicht und eine Stirnansicht der Steckverbindung von Figur 1,
Figur 5 und 6:
einen Steckverbinder in Seitenansicht und geklappter Draufsicht,
Figur 7:
eine perspektivische Unteransicht des Steckverbinders von Figur 5 und 6,
Figur 8:
eine Stirnansicht des Steckverbinders,
Figur 9:
eine abgebrochene seitliche Detailansicht eines bodenseitigen Rückhalteelements und
Figur 10:
eine perspektivische Oberansicht oder Draufsicht des Steckverbinders.
The invention is shown by way of example and schematically in the drawings. Show in detail:
Figure 1: In
a perspective view of a plug-in connection made of a plug connector and two attached hollow profile ends,
Figure 2:
a broken perspective view of a hollow profile end with an inserted connector,
Figure 3 and 4:
a side view and an end view of the connector of figure 1 ,
Figure 5 and 6:
a connector in side view and folded top view,
Figure 7:
a bottom perspective view of the connector of FIG Figure 5 and 6 ,
Figure 8:
an end view of the connector,
Figure 9:
a broken side detailed view of a bottom retaining element and
Figure 10:
Figure 12 is a top perspective or plan view of the connector.

Die Erfindung betrifft einen Steckverbinder (1) für Hohlprofilenden (3,4) von Abstandshaltern einer Isolierverglasung. Die Erfindung betrifft ferner eine vom Steckverbinder (1) und den aufgesteckten Hohlprofilenden (3,4) gebildete Steckverbindung (2) sowie ein Verbindungsverfahren.The invention relates to a connector (1) for hollow profile ends (3,4) of spacers in insulating glazing. The invention also relates to a plug-in connection (2) formed by the plug-in connector (1) and the plugged-on hollow profile ends (3, 4) and a connection method.

Der rahmenförmige Abstandshalter wird vorzugsweise von einem einzelnen Hohlprofil gebildet, das mehrfach umgebogen und an einem geraden Profilabschnitt mit den Profilenden (3,4) und einem dort eingesteckten Steckverbinder (1) zu einem geschlossenen Rahmen verbunden wird. In der gezeigten und bevorzugten Ausführungsform ist der Steckverbinder (1) als Geradverbinder ausgebildet. Alternativ kann der Steckverbinder (1) als Winkelverbinder bzw. Eckwinkel ausgeführt sein, der an den Ecken des Abstandhalterrahmens angeordnet und in gerade Hohlprofilabschnitte eingesteckt wird.The frame-shaped spacer is preferably formed from a single hollow profile which is bent over several times and connected to a straight profile section with the profile ends (3,4) and a plug connector (1) inserted there to form a closed frame. In the embodiment shown and preferred, the connector (1) is designed as a straight connector. Alternatively, the connector (1) can be designed as an angle connector or corner angle, which is arranged at the corners of the spacer frame and inserted into straight hollow profile sections.

In beiden Ausführungsformen als Geradverbinder und als Winkelverbinder weist der Steckverbinder (1) jeweils eine Verbindermitte (13) und hiervon beidseits axial ausgehende Verbinderschenkel (14,15) auf, die bei einem Geradverbinder fluchtend oder bei einem Winkelverbinder mit einem 180° abweichenden Winkel zueinander ausgerichtet sind.In both embodiments as a straight connector and as an angle connector, the plug connector (1) has a connector center (13) and connector legs (14, 15) extending axially from it on both sides, which are aligned with one another in the case of a straight connector or at an angle deviating from one another by 180° in the case of an angle connector are.

Figur 1 zeigt die geschlossene Steckverbindung (2), wobei die Hohlprofilenden (3,4) jeweils in einer Einsteckrichtung (29) auf den zugehörigen Verbinderschenkel (14,15) aufgesteckt sind. Die Hohlprofilenden (3,4) stoßen mit ihren geraden Stirnseiten an einer Stoßstelle oder Verbindungsstelle (5) dicht und spaltfrei aneinander. Der Steckverbinder (1) verkrallt sich dabei mittels Rückhalteelementen (19,24) an einer oder mehreren Hohlprofilinnenseiten und verhindert dabei ein Abziehen eines oder beider Hohlprofilenden (3,4) vom Steckverbinder (1) entgegen der Einsteckrichtung (29). Diese Gegenrichtung wird als Auszugrichtung bezeichnet. figure 1 shows the closed plug-in connection (2), with the hollow profile ends (3,4) each being plugged onto the associated connector leg (14,15) in an insertion direction (29). The ends of the hollow profile (3,4) abut tightly and without a gap with their straight faces at a joint or connection point (5). The connector (1) claws by means of retaining elements (19,24) on one or more hollow profile insides and prevents one or both ends (3,4) of the hollow profile from being pulled off the connector (1) in the opposite direction to the insertion direction (29). This opposite direction is called the pull-out direction.

Die Hohlprofile haben z.B. eine im Wesentlichen rechteckige Querschnittsform mit einer zur Scheibeninnenseite weisenden Bodenwand (7), hieran beidseits anschließenden Seitenwänden (12) und einer Dachwand (11). Zwischen den Seitenwänden (12) und der Dachwand (11) kann eine in Figur 1, 2 und 4 dargestellte schräge Übergangsstelle vorhanden sein. In der Bodenwand (7) bzw. dem sog. Hohlprofilboden können ein oder mehrere Durchlassöffnungen vorhanden sein, über die eine Verbindung zwischen einem im Hohlprofil (3,4) vorhandenen granulierten Trocknungsmittel und einem Gas im Scheibeninnenraum hergestellt werden kann. Die in Figur 1 dargestellten Durchgangsöffnungen können bevorzugt zentral in einer axialen Reihe parallel zur Längsachse (6) der Hohlprofile (3,4) angeordnet und z.B. als Schlitze ausgebildet sein.The hollow profiles have, for example, an essentially rectangular cross-sectional shape with a bottom wall (7) pointing towards the inside of the pane, side walls (12) adjoining it on both sides and a roof wall (11). Between the side walls (12) and the roof wall (11) an in figure 1 , 2 and 4 shown oblique transition point may be present. In the bottom wall (7) or the so-called hollow profile floor, there can be one or more passage openings through which a connection can be established between a granulated desiccant present in the hollow profile (3,4) and a gas in the interior of the pane. In the figure 1 The passage openings shown can preferably be arranged centrally in an axial row parallel to the longitudinal axis (6) of the hollow profiles (3,4) and can be designed, for example, as slots.

Das oder die Hohlprofile (3,4) bestehen vorzugsweise aus Kunststoff. Sie können dabei vollständig oder teilweise aus Kunststoff bestehen. Insbesondere können sie auch als sog. Hybridprofile ausgeführt sein, die als Verbundkörper aus Kunststoff und Metall gestaltet sind.The hollow profile or profiles (3,4) are preferably made of plastic. They can be made entirely or partially of plastic. In particular, they can also be designed as so-called hybrid profiles, which are designed as composite bodies made of plastic and metal.

Das oder die Hohlprofile (3,4) weisen z.B. am Hohlprofilboden (7) und bevorzugt an dessen ein oder beiden Längsrändern (8) ein Verstärkungselement (9) auf. Dieses Verstärkungselement (9) wirkt mit dem Steckverbinder (1) in der nachfolgend beschriebenen Weise zusammen. Das Verstärkungselement (9) ist leistenartig ausgebildet und axial bzw. entlang der Längsachse (6) ausgerichtet. Es erstreckt sich vorzugsweise über die gesamte Hohlprofillänge und ist als durchgehende Leiste gestaltet. Das axiale Verstärkungselement (9) ist vorzugsweise als Erhebung am Hohlprofilboden ausgebildet. Die Erhebung ist vorzugsweise zum Profilinnenraum gerichtet und erstreckt sich senkrecht zur Bodenhauptebene.The hollow profile or profiles (3, 4) have a reinforcing element (9), e.g. on the hollow profile base (7) and preferably on its one or both longitudinal edges (8). This reinforcement element (9) interacts with the connector (1) in the manner described below. The reinforcing element (9) is designed like a strip and is aligned axially or along the longitudinal axis (6). It preferably extends over the entire length of the hollow profile and is designed as a continuous strip. The axial reinforcement element (9) is preferably designed as an elevation on the bottom of the hollow profile. The elevation is preferably directed toward the interior of the profile and extends perpendicularly to the main floor plane.

Das axiale leistenartige Verstärkungselement (9) ist z.B. als Rippe am Hohlprofilboden (7) ausgebildet. Die Rippe kann an das Bodenmaterial angeformt oder angesetzt sein.The axial strip-like reinforcement element (9) is designed, for example, as a rib on the hollow profile floor (7). The rib can be molded or attached to the floor material.

Das Verstärkungselement (9) bzw. die Rippe kann aus dem gleichen Material wie der Hohlprofilboden (7) bestehen.The reinforcing element (9) or the rib can be made of the same material as the hollow profile floor (7).

In den gezeigten und bevorzugten Ausführungsformen weist das axiale leistenartige Verstärkungselement (9) eine versteifende Einlage (10) auf. Diese kann aus einem widerstandsfähigen Material, insbesondere aus Metall, bestehen. Das Einlagenmaterial kann eine höhere Festigkeit als das Bodenmaterial aufweisen und aus einem anderen Werkstoff bestehen. Die Einlage (10) kann teilweise oder vollständig mit einem anderen Material, insbesondere Kunststoff, ummantelt sein. Sie kann in die besagte Rippe integriert sein.In the shown and preferred embodiments, the axial strip-like reinforcement element (9) has a stiffening insert (10). This can consist of a resistant material, in particular metal. The insert material can have a higher strength than the bottom material and can be made of a different material. The insert (10) can be partially or completely covered with another material, in particular plastic. It can be integrated into said rib.

Die Einlage (10) kann eine beliebig geeignete Formgebung und Erstreckung haben. Sie kann z.B. als gerade Rundleiste oder Flachleiste ausgeführt sein. In den Ausführungsbeispielen ist die Einlage (10) als gerade metallische Rundleiste, insbesondere als Stab oder Draht, ausgeführt. Dies kann ein gezogener Draht oder ein aus mehreren Einzeldrähten oder Litzen geschlagener Draht sein, der eine unebene Oberfläche aufweist.The insert (10) can have any suitable shape and extent. For example, it can be designed as a straight round bar or flat bar. In the exemplary embodiments, the insert (10) is designed as a straight metallic round bar, in particular as a rod or wire. This can be a drawn wire or a wire that has been twisted from several individual wires or strands and has an uneven surface.

Die Einlage (10) kann gemäß Figur 1 und 2 in das bevorzugt aus Kunststoff bestehende Material des Hohlprofilbodens (7) bzw. Verstärkungselements (9) eingebettet sein und von diesem teilweise oder vollständig umschlossen sein. In den Zeichnungen ragt die blanke Oberseite der Einlage (10) aus dem Bodenmaterial. In einer anderen Ausführungsform kann sie mit einem relativ weichen Kunststoff überdeckt sein.The insert (10) can according to figure 1 and 2 be embedded in the material of the hollow profile floor (7) or reinforcing element (9), which is preferably made of plastic, and be partially or completely surrounded by it. In the drawings, the bare top of the insert (10) protrudes from the floor material. In another embodiment, it can be covered with a relatively soft plastic.

Der Steckverbinder (1) ist in seiner Querschnittsform an die Innenform der Hohlprofilenden (3,4) angepasst. Er hat z.B. im Querschnitt eine offene U-Form oder eine geschlossene Kastenform. Der Steckverbinder (1) weist einen Boden (16) mit randseitigen Seitenwänden bzw. Seitenstege (22) auf. Der Steckverbinder (1) hat ferner eine Mittenfindung (25) und besitzt mehrere Rückhalteelemente (19,24), die ggf. unterschiedlich ausgebildet und angeordnet sein können. Der Boden (16) ist in der Einbaustellung bzw. in der Steckverbindung (2) vorzugsweise zum Hohlprofilboden (7) gerichtet und liegt dort an.The cross-sectional shape of the connector (1) is adapted to the inner shape of the ends (3, 4) of the hollow profile. It has, for example, an open U-shape or a closed box shape in cross-section. The connector (1) has a base (16) with side walls or side webs (22) at the edge. The connector (1) also has a center finder (25) and has several retaining elements (19,24), which can be designed and arranged differently if necessary. In the installed position or in the plug-in connection (2), the base (16) is preferably directed towards the hollow profile base (7) and rests there.

Der Steckverbinder (1) kann aus einem beliebigen geeigneten Material bestehen. Vorzugsweise ist er als Metallteil, insbesondere als Stanz- und Biegeteil aus Stahlblech, ausgebildet.The connector (1) can be made of any suitable material. It is preferably designed as a metal part, in particular as a stamped and bent part made of sheet steel.

In den gezeigten Ausführungsformen weist der Steckverbinder (1) an einem oder beiden Längsrändern (17) des Bodens (16) eine rinnenartige Vertiefung (18) mit einem vom Boden (16) nach außen abstehenden Rückhalteelement (19) auf. Das Rückhalteelement (19) ist zur Verkrallung gegen die Auszugrichtung mit einem am korrespondierenden Längsrand (8) des Hohlprofilbodens (7) angeordneten, axialen, leistenartigen Verstärkungselement (9) vorgesehen und ausgebildet. Das Rückhalteelement (19) ist bevorzugt als Federzunge ausgebildet.In the embodiments shown, the connector (1) has a groove-like depression (18) on one or both longitudinal edges (17) of the base (16) with a retaining element (19) protruding outwards from the base (16). The retaining element (19) is provided and designed for clawing against the pull-out direction with an axial, strip-like reinforcing element (9) arranged on the corresponding longitudinal edge (8) of the hollow profile base (7). The retaining element (19) is preferably designed as a spring tongue.

Die randseitige rinnenartige Vertiefung (18) ist axial ausgerichtet bzw. erstreckt sich in Längsrichtung (6). Sie kann in geeigneter Weise gebildet werden, z.B. durch Verformung, insbesondere Biegen oder Prägen, eines dünnwandigen Bodenmaterials. Die Vertiefung (18) ist zum Innenraum bzw. Hohlraum (28) des Steckverbinders (1) gerichtet. Der Innenraum (28) ist vorzugsweise axial durchgängig und ermöglicht einen Durchfluss des granulierten Trocknungsmittels durch den Steckverbinder (1) und über die Stoß- oder Verbindungsstelle (5) hinweg.The groove-like recess (18) on the edge is aligned axially or extends in the longitudinal direction (6). It can be formed in any suitable manner, for example by deforming, in particular bending or embossing, a thin-walled base material. The recess (18) is directed towards the interior or cavity (28) of the connector (1). The interior space (28) is preferably axially continuous and allows the granulated desiccant to flow through the connector (1) and over the joint or connection point (5).

Die rinnenartige Vertiefung (18) weist einen stufenförmigen Querschnitt auf. Sie hat z.B. eine nach unten und seitlich offene Form und bildet dabei eine Stufe oder Kehle. Die rinnenartige Vertiefung (18) erstreckt sich vorzugsweise durchgehend entlang der Verbinderschenkel (14,15) und ggf. über die Profilmitte (13) hinweg. In einer anderen und nicht dargestellten Ausführungsform kann die rinnenartige Vertiefung eine andere Querschnittsform, z.B. eine U- oder V-Form, aufweisen.The channel-like depression (18) has a step-shaped cross section. It has, for example, a shape that is open at the bottom and at the side, thereby forming a step or throat. The groove-like depression (18) preferably extends continuously along the connector legs (14, 15) and, if necessary, over the center (13) of the profile. In another embodiment that is not shown, the channel-like depression can have a different cross-sectional shape, for example a U-shape or V-shape.

Der Boden (16) der Steckverbinders (1) weist zwischen den randseitigen Vertiefungen (18) einen erhabenen Innenbereich (21) auf. Dieser ist vorzugsweise massiv ausgebildet und hat eine ebene Aussenseite. Der erhabene Innenbereich (21) liegt mit seiner Außenseite plan auf dem bevorzugt ebenfalls in diesem Bereich ebenen Hohlprofilboden (7) an.The bottom (16) of the connector (1) has a raised inner area (21) between the edge depressions (18). This is preferably solid and has a flat outside. The outside of the raised inner area (21) rests flat on the hollow profile base (7), which is preferably also flat in this area.

Das Rückhalteelement (19) ist an dem zurückversetzten Bodenbereich der rinnenartigen Vertiefung (18) angeordnet. Die Vertiefung (18) und das Rückhalteelement (19) haben vorzugsweise im Wesentlichen die gleiche Breite.The retaining element (19) is arranged on the recessed bottom area of the channel-like depression (18). The recess (18) and the retaining element (19) preferably have substantially the same width.

Das federnd ausweichfähige und zungenartige Rückhalteelement (19) kann in beliebig geeigneter Weise ausgebildet sein. Es besitzt eine vom Bodenbereich der Vertiefung (18) ausgehende und schräg nach außen bzw. unten gerichtete Zungenwand. Diese kann eine gerade bzw. ebene oder leicht gewölbte Form haben.The resilient, tongue-like retaining element (19) can be designed in any suitable manner. It has a tongue wall that extends from the bottom area of the depression (18) and is directed obliquely outwards or downwards. This can have a straight, flat or slightly curved shape.

In der bevorzugten Ausführungsform ist die Federzunge (19) aus dem Bodenbereich der Vertiefung (18) ausgestanzt und schräg ausgestellt. Figur 6, 7 und 9 verdeutlichen diese Ausbildung. Das Rückhalteelement (19) bzw. die Federzunge ist zur Verbindermitte (13) gerichtet und wird beim Aufschieben des Hohlprofilendes (3,4) federnd niedergedrückt.In the preferred embodiment, the spring tongue (19) is punched out of the bottom area of the recess (18) and is set out at an angle. Figure 6, 7 and 9 clarify this training. The retaining element (19) or the spring tongue is directed towards the middle of the connector (13) and is resiliently pressed down when the hollow profile end (3,4) is pushed on.

Das bodenseitige Rückhalteelement (19) weist einen freien Rand (20) auf, der zum Eingraben oder Einschneiden gegen die Auszugsrichtung am zugehörigen Verstärkungselement (9) vorgesehen und ausgebildet ist. Dieser freie Rand (20) kann scharfkantig ausgebildet sein. Er kann als gepfeilte oder gebogene Schneidspitze oder als schräge oder gerade Schneidkante gestaltet sein.The floor-side retaining element (19) has a free edge (20) which is provided and designed for digging in or cutting against the pull-out direction on the associated reinforcing element (9). This free edge (20) can be sharp-edged. It can be designed as a swept or curved cutting tip or as a sloping or straight cutting edge.

An den bodenseitigen Längsrändern (17) der Verbinderschenkel (14,15) bzw. an den dortigen Vertiefungen (18) ist in den gezeigten Ausführungsbeispielen jeweils ein einzelnes bodenseitiges Rückhalteelement (19) angeordnet. Alternativ können wenige, insbesondere zwei oder drei, bodenseitige Rückhalteelemente (19) an den besagten Längsrändern (17) bzw. Vertiefungen (18) der jeweiligen Verbinderschenkel (14, 15) angeordnet sein. In den gezeigten Ausführungsbeispielen hat der Steckverbinder (1) insgesamt vier bodenseitige Rückhalteelemente (19).On the bottom longitudinal edges (17) of the connector legs (14,15) or on the depressions (18) there, a single bottom-side retaining element (19) is arranged in the exemplary embodiments shown. Alternatively, a few, in particular two or three, floor-side retaining elements (19) can be arranged on said longitudinal edges (17) or depressions (18) of the respective connector legs (14, 15). In the exemplary embodiments shown, the connector (1) has a total of four retaining elements (19) on the bottom.

Die bodenseitigen Rückhalteelemente (19) sind jeweils mit erheblicher Distanz von der Verbindermitte (13) angeordnet. Sie sind z.B. an den Verbinderschenkeln (14, 15) jeweils etwa auf halber Distanz zwischen der Verbindermitte (13) und der zugehörigen Verbinderstirnseite (27) oder näher an der Verbinderstirnseite (27) als an der Verbindermitte (13) angeordnet. Vorzugsweise ist der Abstand der Rückhalteelemente (19) von der Verbindermitte (13) größer als von der benachbarten Verbinderstirnseite (27).The bottom retaining elements (19) are each arranged at a considerable distance from the center (13) of the connector. For example, they are arranged on the connector legs (14, 15) approximately halfway between the connector center (13) and the associated connector end face (27) or closer to the connector end face (27) than to the connector center (13). The spacing of the retaining elements (19) from the connector center (13) is preferably greater than from the adjacent connector end face (27).

Die an den Verbinderschenkeln (14,15) beidseits angeordneten einzelnen Rückhalteelemente (19) haben jeweils einen gegenseitigen axialen Versatz. Figur 6 und 7 verdeutlichen diese Ausbildung. Alternativ können die linken und rechten Rückhalteelemente (19) an den Verbinderschenkeln (14,15) jeweils auf gleicher Höhe angeordnet sein. Entsprechende Ausgestaltungen mit oder ohne axialen Versatz sind auch bei einer Mehrfachanordnung von bodenseitigen Rückhalteelementen (19) an dem oder den Längsrändern des jeweiligen Verbinderschenkels (14,15) möglich.The individual retaining elements (19) arranged on both sides of the connector legs (14, 15) each have a mutual axial offset. Figure 6 and 7 clarify this training. Alternatively, the left and right retaining elements (19) on the connector legs (14, 15) can each be at the same height be arranged. Corresponding configurations with or without an axial offset are also possible with a multiple arrangement of floor-side retaining elements (19) on the longitudinal edge or edges of the respective connector leg (14, 15).

Wie Figur 2, 4, 8 und 10 verdeutlichen, sind die rinnenartigen Vertiefungen (18) und die bodenseitigen Rückhalteelemente (19) direkt am jeweiligen Längsrand (17) des Verbinderbodens (16) angeordnet. Die Vertiefung (18) und die Rückhalteelemente (19) schließen dabei auch an die Übergangsstelle vom Boden (16) zur Seitenwand (22) an. Die Breitenabmessungen der rinnenartigen Vertiefungen (18) und des erhabenen Innenbereichs (21) sind außerdem an die Abmessungen des Hohlprofilbodens (7) und insbesondere an die Form und Position der randseitigen Verstärkungselemente (9) angepasst. Die rinnenartige Vertiefung (18) übergreift das jeweilige Verstärkungselement (9) und kann ggf. auch diesem aufliegen.As Figure 2, 4 , 8 and 10 make clear, the channel-like depressions (18) and the floor-side retaining elements (19) are arranged directly on the respective longitudinal edge (17) of the connector floor (16). The depression (18) and the retaining elements (19) also connect to the transition point from the base (16) to the side wall (22). The width dimensions of the channel-like depressions (18) and the raised inner area (21) are also adapted to the dimensions of the hollow profile floor (7) and in particular to the shape and position of the edge-side reinforcing elements (9). The groove-like recess (18) overlaps the respective reinforcement element (9) and can also rest on it if necessary.

Die Seitenwände (22) gehen beidseits von den Längsrändern (17) des Bodens (16) aus und erstrecken sich nach oben bzw. quer zum Boden (16). Bei der bevorzugten stufenförmigen Querschnittsgestaltung der Vertiefungen (18) schließen die Seitenwände (22) an den Bodenbereich der Vertiefung (18) an. Bei einem U-förmigen Vertiefungsquerschnitt sind die Seitenwände (22) weiter nach unten zum erhabenen inneren Bodenbereich (21) gezogen.The side walls (22) start on both sides from the longitudinal edges (17) of the base (16) and extend upwards or transversely to the base (16). In the case of the preferred step-shaped cross-sectional configuration of the depressions (18), the side walls (22) adjoin the bottom area of the depression (18). In the case of a U-shaped recess cross-section, the side walls (22) are drawn further down to the raised inner bottom area (21).

An den Seitenwänden (22) sind ein oder mehrere weitere Rückhalteelemente (24) angeordnet. Sie befinden sich vorzugsweise am jeweiligen freien Rand (23) der Seitenwand (22). Die weiteren Rückhalteelemente (24) können ebenfalls einen erheblichen axialen Abstand von der Verbindermitte (13) aufweisen. Sie sind vorzugsweise um etwa die halbe Schenkellänge oder mehr von der Verbindermitte (13) distanziert. Im Bereich der Verbindermitte (13) sind die Seitenwände massiv und mit maximaler Steghöhe ausgebildet.One or more further retaining elements (24) are arranged on the side walls (22). They are preferably located on the respective free edge (23) of the side wall (22). The other retaining elements (24) can also have a considerable axial distance from the connector center (13). They are preferably around halfway Leg length or more distanced from the connector center (13). In the area of the middle of the connector (13), the side walls are solid and designed with the maximum web height.

An den Verbinderschenkeln (14,15) und deren Seitenwandbereichen (22) sind jeweils mehrere, z.B. drei, Rückhalteelemente (24) mit axialem Abstand hintereinander angeordnet. Die weiteren Rückhalteelemente (24) können als Federnasen ausgebildet sein, die aus dem oberen Seitenwandbereich freigeschnitten und zumindest seitlich ausgestellt sind. Die schenkelweise aufgereihten weiteren Rückhalteelemente (24) können eine gleiche oder unterschiedliche Formgebung haben. Insbesondere sind sie gemäß Figur 6 unterschiedlich weit quer zur Seitenwandebene ausgestellt und weisen dadurch einen Seitenversatz auf. Von der Verbinderstirnseite (27) ausgehend nimmt jeweils die Ausstellweite der axial aufeinander folgenden Rückhalteelemente (24) zu.Several, for example three, retaining elements (24) are arranged one behind the other at an axial distance on the connector legs (14, 15) and their side wall areas (22). The other retaining elements (24) can be in the form of spring lugs which are cut out of the upper side wall area and are set out at least laterally. The further retaining elements (24) lined up leg by leg can have the same or different shape. In particular, they are in accordance with figure 6 differently far across to the side wall plane and thus have a lateral offset. Starting from the connector end face (27), the projection width of the retaining elements (24) following one another in the axial direction increases.

Die schenkelweise axial aufgereihten Rückhalteelemente (24) können außerdem mit ihren Wirkstellen einen Höhenversatz gegenüber dem Verbinderboden (16) aufweisen. Die Wirkstellen greifen dadurch an unterschiedlichen hohen Stellen der Innenseite der jeweiligen Hohlprofilseitenwand an. Die frei gestellten und nur einseitig an die Seitenwand (22) angebundenen Rückhalteelemente (24) können z.B. eine rechteckige oder trapezartige Formgebung haben.The retaining elements (24) arranged axially in a leg-by-leg manner can also have a height offset in relation to the connector base (16) with their active points. As a result, the active points act on the inside of the respective hollow profile side wall at different high points. The retaining elements (24) that are free and attached to the side wall (22) on only one side can have a rectangular or trapezoidal shape, for example.

Die gruppierten bzw. schenkelweise aufgereihten Federnasen (24) können außerdem gemäß Figur 5 bis 10 unterschiedliche Kipp- oder Drehlagen haben. Sie sind dadurch unterschiedlich schräg zur Längsachse (6) ausgerichtet. Die jeweils der Verbindermitte (13) am nächsten benachbarten Federnasen (24) haben dabei eine stärkere Schräglage als die in Axialrichtung zu Verbinderstirnseite (27) folgenden Federnasen (24). Die jeweils der Stirnseite (27) am nächsten benachbarte Federnase (24) hat die steilste Ausrichtung und ist fast senkrecht zur Bodenebene (16) ausgebildet. Durch diese Schräglage bzw. Verdrehung der Federnasenhauptebene gegenüber der Seitenwandhauptebene nimmt die Steifigkeit der weiteren Rückhalteelemente (24) bzw. Federnasen von der Verbinderstirnseite (27) zur Verbindermitte (13) hin zu. Außerdem erhält der Wirkbereich eine zunehmend spitzere Form. Bei den stirnseitig benachbarten Rückhalteelementen (24) ist die Wirkstelle als im Wesentlichen aufrechte Kante der Federnase ausgebildet. Durch die besagte Verdrehung verkürzt sich die Wirkstelle immer mehr auf die obere Ecke oder Spitze der Federnase (24).The grouped or leg-wise lined-up spring lugs (24) can also according to Figure 5 to 10 have different tilting or rotating positions. As a result, they are oriented at different angles to the longitudinal axis (6). The respective spring lugs (24) closest to the connector center (13) have a stronger inclined position than the spring lugs (24) following in the axial direction to the connector end face (27). Each of the end face (27) closest to the adjacent spring lug (24) has the steepest orientation and is formed almost perpendicular to the ground plane (16). This slanting or twisting of the main plane of the spring lug relative to the main plane of the side wall increases the rigidity of the further retaining elements (24) or spring lugs from the connector end face (27) to the connector center (13). In addition, the effective area gets an increasingly pointed shape. In the case of the retaining elements (24) adjacent at the end, the point of action is designed as a substantially upright edge of the spring lug. Due to said twisting, the point of action is increasingly shortened to the upper corner or tip of the spring nose (24).

Die Mittenfindung (25) kann in beliebig geeigneter Weise ausgebildet sein. Sie kann insbesondere fest oder federnd ausgestaltet sein. Sie ist an der Verbindermitte (13) angeordnet.The center finder (25) can be designed in any suitable way. In particular, it can be designed to be fixed or resilient. It is arranged at the connector center (13).

In der gezeigten und bevorzugten Ausführungsform ist die Mittenfindung (25) als fester Mittenanschlag ausgebildet, der sich in die Stirnseiten der aufgesteckten Hohlprofilenden (3,4) eingraben kann. Der Mittenanschlag ist vorzugsweise als Minianschlag ausgebildet und weist eine Anschlagnase (26) an der Verbindermitte (13) auf. Die Anschlagnase (26) ist an den Seitenwänden (22) jeweils an deren oberen freien Rand (23) angeordnet ist und erstreckt sich in der Seitenwandhauptebene nach oben. Die schlanke Anschlagnase (26) hat steile Flanken, die sich beim Einsecken in die Profilstirnseiten eindrücken. Dies kann eine zumindest teilweise elastische Stirnwandverformung bewirken. Die elastische Rückstellkraft kann für eine Verspannung gegen die bodenseitigen Rückhalteelemente (19) sorgen und deren Verkrallung und bevorzugt formschlüssigen Eingriff bzw. Einschnitt in das jeweilige Verstärkungselement (9) vergünstigen.In the shown and preferred embodiment, the center finder (25) is designed as a fixed center stop that can dig into the end faces of the plugged hollow profile ends (3,4). The center stop is preferably designed as a mini stop and has a stop lug (26) on the connector center (13). The stop lug (26) is arranged on the side walls (22) at their upper free edge (23) and extends upwards in the main plane of the side wall. The slender stop lug (26) has steep flanks that press into the front faces of the profile when it is inserted. This can bring about an at least partially elastic deformation of the front wall. The elastic restoring force can ensure tension against the floor-side retaining elements (19) and promote their clawing and preferably form-fitting engagement or incision in the respective reinforcement element (9).

In der gezeigten Ausführungsform greifen die weiteren Rückhalteelemente (24) an den Hohlprofilseitenwänden (12) und an der Kehle der schrägen Übergangsstelle zum Hohlprofildach (11) an. Die Rückhalteelemente (24) können dabei mit ihren Wirkstellen auch etwas oben ausgebogen oder abgewinkelt sein.In the embodiment shown, the further retaining elements (24) act on the side walls (12) of the hollow profile and on the groove of the inclined transition point to the roof (11) of the hollow profile. The retaining elements (24) can also be slightly bent or angled at the top with their active points.

Die Anschlagnasen (26) wirken ebenfalls mit diesem schrägen Übergangsbereich zusammen. Sie reichen außerdem nur über einen Teil der Hohlprofilwanddicke, sodass im darüberliegenden Wandbereich der Stirnwände ein dichter Stoß bzw. eine dichte Anlage an der Verbindungsstelle (5) erreicht wird.The stop lugs (26) also interact with this sloping transition area. In addition, they only extend over part of the wall thickness of the hollow profile, so that a tight joint or tight contact with the connection point (5) is achieved in the wall area of the end walls above it.

Abwandlungen der gezeigten und beschriebenen Ausführungsbeispiele sind in verschiedener Weise möglich. Insbesondere können die Merkmale der Ausführungsbeispiele und der erwähnten Varianten im Rahmen der Ansprüche miteinander kombiniert, insbesondere auch vertauscht werden.Modifications of the exemplary embodiments shown and described are possible in various ways. In particular, the features of the exemplary embodiments and the variants mentioned can be combined with one another within the scope of the claims, in particular they can also be interchanged.

In einer nicht dargestellten Ausführungsvariante ist es möglich, dass das Verstärkungselement (9) in einer rinnenartigen Vertiefung am jeweiligen Längsrand (8) des Hohlprofilbodens (7) angeordnet und dadurch vom Verbinderboden (16) ggf. etwas in der Höhe distanziert ist.In an embodiment variant that is not shown, it is possible for the reinforcing element (9) to be arranged in a channel-like depression on the respective longitudinal edge (8) of the hollow profile base (7) and thereby possibly slightly spaced in height from the connector base (16).

In den gezeigten Ausführungsbeispielen sind der Hohlprofilboden (7) und der Verbinderboden (16) zur Innenseite des Abstandshalterrahmens und der Isolierglasscheibe gerichtet. In einer alternativen Ausführungsform kann die Anordnung umgedreht sein, wobei beide Böden (7, 16) zur Rahmen- und Scheibenaußenseite weisen und entsprechend gestaltet sind.In the exemplary embodiments shown, the hollow profile base (7) and the connector base (16) are directed towards the inside of the spacer frame and the insulating glass pane. In an alternative embodiment, the arrangement can be reversed, with both bases (7, 16) pointing to the outside of the frame and pane and are designed accordingly.

Die jeweils einzeln dargestellten Verstärkungselemente (9) bzw. deren Einlagen (10) können alternativ mehrfach vorhanden sein, z.B. in parallelen doppelten Einlagen (10). Ferner können die bodenseitigen Rückhalteelemente (19), insbesondere deren Federzungen, quer zur Längsachse (6) versetzt oder mehrfach nebeneinander angeordnet sein. Sie können auch geteilt ausgebildet sein. Generell können die in Einzelanordnung geschriebenen Komponenten des Steckverbinders (1) und der Steckverbindung (2) in geeigneter Mehrfachanordnung vorhanden sein. In weiterer Abwandlung können die bodenseitigen Rückhalteelemente (19) statt als Federzungen in anderer geeigneter Weise ausgebildet sein.The individually illustrated reinforcement elements (9) or their inserts (10) can alternatively be present in multiples, e.g. in parallel double inserts (10). Furthermore, the floor-side retaining elements (19), in particular their spring tongues, can be offset transversely to the longitudinal axis (6) or arranged multiple times next to one another. You can also be divided. In general, the components of the plug connector (1) and the plug connection (2), which are written in a single arrangement, can be present in a suitable multiple arrangement. In a further modification, the floor-side retaining elements (19) can be designed in another suitable way instead of as spring tongues.

Ferner ist es möglich, die rinnenartige Vertiefung (18) oder die erwähnte Erhebung mit einem bodenseitigen Rückhalteelement (19) lokal begrenzt auszubilden und ggf. mehrfach anzuordnen. Außerhalb dieser Bereiche kann der jeweilige Randbereich (17) des Verbinderbodens (16) eine gleiche oder ähnliche Ausbildung wie der Innenbereich (21) aufweisen.It is also possible to form the channel-like depression (18) or the aforementioned elevation with a floor-side retaining element (19) in a locally delimited manner and, if necessary, to arrange it several times. Outside these areas, the respective edge area (17) of the connector base (16) can have the same or similar design as the inner area (21).

Darüber hinaus sind weitere Abwandlungen möglich. Der Steckverbinder (1) kann einen kastenförmigen geschlossenen Querschnitt mit einem zusätzlichen Dachbereich aufweisen. Der Hohlraum (28) kann zur Sperrung eines Granulatdurchflusses verschlossen sein. Die weiteren Rückhalteelemente (24) können entfallen oder in anderer Weise ausgebildet und angeordnet sein. Der innere bzw. mittlere Bodenbereich (21) kann stellenweise unterbrochen oder gelocht oder auch profiliert sein. Er kann weitere Elemente aufweisen, z.B. nach innen und zum Hohlprofildach (11) gerichtete federnde Rückhalteelemente. Der Steckverbinder (1) kann aus einem besonders hochfesten und versteiften Kunststoffmaterial oder aus einem Verbundmaterial bestehen. Er kann auch als metallisches Gussteil ausgeführt sein. Die Verstärkungselemente (9) müssen keine Erhebung bilden, sondern können in den ansonsten ebenen Hohlprofilboden eingebettet sein. Sie können dabei von den im Boden (7) eingebeteten Einlagen (10) gebildet werden.In addition, further modifications are possible. The connector (1) can have a box-shaped, closed cross-section with an additional roof area. The cavity (28) can be closed to block the flow of granules. The other retaining elements (24) can be omitted or designed and arranged in a different way. The inner or middle floor area (21) can be interrupted or perforated in places or also profiled. It can have further elements, for example resilient retaining elements directed inwards and towards the hollow profile roof (11). The connector (1) can consist of a particularly high-strength and stiffened plastic material or of a composite material. It can also be designed as a metal casting. The reinforcement elements (9) do not have to form an elevation, but can be embedded in the otherwise flat hollow profile floor. They can be formed by the inlays (10) embedded in the base (7).

Die Mittenfindung (25) kann anders ausgebildet und angeordnet sein. Sie kann z.B. durch federnde Anschlagnasen oder durch axial einseitig wirkende und gegenseitig diagonal versetzt angeordnete, keilförmige Festanschläge gebildet werden. Bei einer Ausbildung des Steckverbinders (1) als Winkelverbinder ist die Mittenfindung (25) in entsprechend anderer Weise ausgebildet und wird z.B. von ausgestellten Anschlagkanten am Eckbereich des Steckverbinders (1) gebildet.The center finder (25) can be designed and arranged differently. It can be formed, for example, by resilient stop lugs or by wedge-shaped fixed stops that act axially on one side and are arranged diagonally offset from one another. When the plug connector (1) is designed as an angle connector, the center finding (25) is designed in a correspondingly different way and is formed, for example, by flared stop edges on the corner area of the plug connector (1).

BEZUGSZEICHENLISTEREFERENCE LIST

11
Steckverbinderconnector
22
Steckverbindungconnector
33
Hohlprofil, HohlprofilendeHollow profile, hollow profile end
44
Hohlprofil, HohlprofilendeHollow profile, hollow profile end
55
Verbindungsstelleconnection point
66
Längsachselongitudinal axis
77
Bodenwand, HohlprofilbodenFloor wall, hollow profile floor
88th
Randbereich, Längsrandedge area, longitudinal edge
99
Verstärkungselement, Rippe, EinlageReinforcement element, rib, insert
1010
Einlageinlay
1111
Dachwand, HohlprofildachRoof wall, hollow profile roof
1212
Seitenwand, Hohlprofilseiteside wall, hollow profile side
1313
Mitte, Verbindermittecenter, connector center
1414
Schenkel, Verbinderschenkelleg, connector leg
1515
Schenkel, Verbinderschenkelleg, connector leg
1616
Boden, Verbinderbodenfloor, connector floor
1717
Randbereich, Längsrandedge area, longitudinal edge
1818
Vertiefungdeepening
1919
Rückhalteelement unten, FederzungeRetaining element below, spring tongue
2020
Rand, Schneidkanteedge, cutting edge
2121
Innenbereichinterior
2222
Seitenwand, Seitenstegside wall, side bar
2323
freier Randfree edge
2424
Rückhalteelement oben, FedernaseRetaining element above, spring nose
2525
Mittenfindung, MittenanschlagCenter finding, center stop
2626
Anschlagnasestop nose
2727
Stirnseite, Verbinderendeend face, connector end
2828
Hohlraumcavity
2929
Einsteckrichtunginsertion direction

Claims (15)

  1. Plug connector for plastic hollow profile ends (3, 4) of insulating glazing spacers,
    - wherein the plug connector (1) has a connector centre (13) and axial connector legs (14, 15) originating therefrom on both sides,
    - wherein the plug connector (1) has a base (16) with side walls (22) at the edge and a centre locator (25) and retaining elements (19, 24),
    - wherein the plug connector (1) has a retaining element (19) which projects outwards from the base (16) on one or both longitudinal edges (17) of the base (16) and which is provided and designed for clawing against the pull-out direction with an axial, strip-like reinforcing element (9) arranged on the corresponding longitudinal edge (8) of a hollow profile base (7),
    - wherein the retaining element (19) is preferably formed as a spring tongue,
    - wherein the retaining element (19) is arranged in a channel-like recess (18) on one or both longitudinal edges (17) of the base (16),
    - wherein the recess (18) is aligned axially,
    - wherein the recess (18) is directed towards the interior or hollow space (28) of the plug connector (1) and
    wherein further retaining elements (24) are arranged on the side walls (22), in particular on their free edges (23) .
  2. Plug connector according to Claim 1, characterized in that the recess (18) extends continuously over the length of the plug connector (1).
  3. Plug connector according to Claim 1 or 2, characterized in that the plug connector (1) is formed as a metal part, in particular as a punched and bent part made of sheet steel.
  4. Plug connector according to one of the preceding claims, characterized in the retaining elements (19) on the base of one or both longitudinal edges (17) are each arranged individually over the length of the plug connector (1) on both sides of its connector centre (13), in particular at a distance from the connector centre (13) .
  5. Plug connector according to one of the preceding claims, characterized in that the retaining elements (19) on the base of the connector legs (14, 15) are each arranged at approximately half the distance between the connector centre (13) and the connector end face (27) or closer to the connector end face (27) than to the connector centre (13).
  6. Plug connector according to one of the preceding claims, characterized in that on the longitudinal edges (17) on the base of the connector legs (14, 15), an individual retaining element (19) or a few, in particular two or three, retaining elements (19) is/are each arranged on the base.
  7. Plug connector according to one of the preceding claims, characterized in that the retaining elements (19) arranged on the base of the connector legs (14, 15) each have an opposite axial offset.
  8. Plug connector according to one of the preceding claims, characterized in that the retaining element (19) on the base has a free edge (20) which is provided and designed for digging or cutting against the pull-out direction on the associated reinforcing element (9).
  9. Plug connector according to one of the preceding claims, characterized in that the channel-like recess (18) has a shape that is open towards the bottom and at the sides.
  10. Plug connector according to one of the preceding claims, characterized in that the channel-like recess (18) and the retaining element (19) on the base adjoin the marginal edge of the base (16) and the point of transition to the side wall (22).
  11. Plug connector according to one of the preceding claims, characterized in that the base (16) between the longitudinal edges (17) has an elevated internal region (21), which has a shape that is solid and flat on the outside.
  12. Plug connection, comprising hollow profile ends (3, 4) of insulating glazing spacers and a plug connector (1) that is plugged therein, characterized in that the plug connector (1) is formed according to at least one of Claims 1 to 11, wherein the hollow profile ends (3, 4) consist at least partly of plastic, and wherein an axial strip-like reinforcing element (9) that is preferably continuous in the longitudinal direction (6) is arranged on one or both longitudinal edges (8) of the hollow profile base (7).
  13. Plug connection according to Claim 12, characterized in that the base (16) of the plug connector (1) has an elevated internal region (21), which is solid and has a flat outer side, between the recesses (18) at the edge, wherein the elevated internal region (21) rests flat with its outer side on a hollow profile base (7), which is preferably likewise flat in this region.
  14. Plug connection according to Claim 12 or 13, characterized in that the axial strip-like reinforcing element (9) is formed as an elevation (10) on the hollow profile base (7) or is arranged in a recess at the edge of the hollow profile base (7).
  15. Plug connection according to one of Claims 12 to 14, characterized in that the axial strip-like reinforcing element (9) consists of the same material as the hollow profile base (7) or of a material that differs from the hollow profile base (7), in particular of metal.
EP16778215.0A 2015-09-24 2016-09-15 Plug connector and plug connection Active EP3353366B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202015105061.5U DE202015105061U1 (en) 2015-09-24 2015-09-24 Connector and connector
PCT/EP2016/071745 WO2017050624A1 (en) 2015-09-24 2016-09-15 Plug connector and plug connection

Publications (2)

Publication Number Publication Date
EP3353366A1 EP3353366A1 (en) 2018-08-01
EP3353366B1 true EP3353366B1 (en) 2022-04-13

Family

ID=57113248

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16778215.0A Active EP3353366B1 (en) 2015-09-24 2016-09-15 Plug connector and plug connection

Country Status (5)

Country Link
EP (1) EP3353366B1 (en)
DE (1) DE202015105061U1 (en)
HU (1) HUE059365T2 (en)
PL (1) PL3353366T3 (en)
WO (1) WO2017050624A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202017101315U1 (en) * 2017-03-08 2018-06-11 Ralf M. Kronenberg Connector and connector
PL422088A1 (en) * 2017-07-03 2019-01-14 Grzywacz Cezary P.P.H.U. Plastmax Plug-in connector for hollow sections
PL422089A1 (en) * 2017-07-03 2019-01-14 Grzywacz Cezary P.P.H.U. Plastmax Plug-in connector for empty sections
DE102018109278B4 (en) * 2018-04-18 2020-04-09 Helima Gmbh Spacer frame and double glazing
PL244055B1 (en) * 2019-03-29 2023-11-27 Grzywacz Cezary P P H U Plastmax Plug-in connector for connecting the ends of window profiles
DE202021102028U1 (en) 2021-04-15 2022-07-19 Ralf M. Kronenberg connector and plug connection

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59306331D1 (en) * 1992-12-10 1997-06-05 Thermix Gmbh Isolationssysteme Spacers
DE29722771U1 (en) 1997-12-23 1999-04-29 Kronenberg, Max, 42657 Solingen Connectors for hollow profiles
CA2639201A1 (en) * 2008-08-28 2008-12-05 United Window Clip Inc. Plug connector for retaining hollow sections
DE202008013046U1 (en) * 2008-10-02 2010-02-25 Kronenberg, Max Connectors
DE202009008694U1 (en) * 2009-06-23 2010-11-11 Kronenberg, Max Connectors
EP2644818A1 (en) 2012-03-16 2013-10-02 Kurt Steineberg GmbH Connecting member

Also Published As

Publication number Publication date
EP3353366A1 (en) 2018-08-01
DE202015105061U1 (en) 2016-12-29
PL3353366T3 (en) 2022-07-18
HUE059365T2 (en) 2022-11-28
WO2017050624A1 (en) 2017-03-30

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