EP4074934B1 - Connecteur enfichable et connexion enfichable - Google Patents

Connecteur enfichable et connexion enfichable Download PDF

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Publication number
EP4074934B1
EP4074934B1 EP22167687.7A EP22167687A EP4074934B1 EP 4074934 B1 EP4074934 B1 EP 4074934B1 EP 22167687 A EP22167687 A EP 22167687A EP 4074934 B1 EP4074934 B1 EP 4074934B1
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EP
European Patent Office
Prior art keywords
connector
retaining elements
base
plug connector
profile
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Application number
EP22167687.7A
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German (de)
English (en)
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EP4074934A1 (fr
EP4074934C0 (fr
Inventor
Ralf M. Kronenberg
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Individual
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Individual
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Publication of EP4074934C0 publication Critical patent/EP4074934C0/fr
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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 connector and a plug connection having the features of the independent claims.
  • a connector and a plug connection for spacer hollow profiles of an insulating glazing are from the WO 2018/162584 A1 known.
  • the connector is designed for a plug connection with warm-edge hollow profiles made of plastic.
  • the connector has a substantially U-shaped cross-section with a base that, in the installed position, points towards the interior of the insulating glazing and edge-side side walls that extend from the base and are directed diagonally outwards, each with several spring-loaded retaining elements that extend outwards. In side view, these have a rectangular shape with a straight and upright front edge that extends parallel to the main plane of the diagonal side wall.
  • the previously known connector is designed as a stamped and bent part made of a metal sheet.
  • the DE 20 2015 105 061 U1 shows another connector and a plug connection that are designed for plastic spacer hollow profiles.
  • the connector grips a metal reinforcement insert on the bottom of the unstable hollow profile with edge-side tongues and has spring-loaded retaining elements on the upper edge of the side walls. These are spaced from the side wall area below by a wide groove and are therefore particularly flexible for engagement with a plastic wall and can be bent after bent in several directions.
  • a connector for picture frame profiles or spacer hollow profiles is known, wherein the connector has curved spring clips projecting upwards from the connector base on the inside, each of which is supported on an opposite profile wall.
  • the DE 20 2009 008 694 U1 shows a connector for spacer hollow profiles, which has springy retaining elements bent laterally and angled upwards on its side wall edges, the tips of which dig into the side hollow profile walls. Large-area cutouts are arranged under the retaining elements.
  • Metallic connectors are also known from practice that have wedge-shaped retaining elements that are widened towards the front edge or triangular retaining elements.
  • the claimed connector is designed and constructed for metallic hollow profiles of spacers for insulating glazing, e.g. for stainless steel or aluminium profiles.
  • the hollow profiles are metal profiles and have metallic inner sides of their hollow profile walls, which the connector engages.
  • the connector can engage the hollow profile or its hollow profile end in any way or in any position.
  • the claimed connector has a substantially U-shaped cross-section with open front sides. It has an axially continuous inner cavity and a base that, in the installed position, points towards the interior of the insulating glazing, as well as edge side walls extending from the base on both sides and a center point.
  • the side walls are preferably aligned perpendicular to the base.
  • the side walls can also be directed outwards at a minimal angle. They can be tilted accordingly at the transition point to the base. This can be due to manufacturing and tool reasons, for example, or to an adaptation to the hollow profile material or the like.
  • the tilt angle a of a slanted side wall against the vertical can be up to 10°, preferably up to 5°, for example. In the particularly preferred embodiment, it is between 1.5° and 3°. This design of the connector with a very small tilt angle a of up to 3° is advantageous for the aforementioned metallic hollow profiles.
  • the ground alignment here and below refers to the alignment relative to the main plane of the ground.
  • the axial alignment refers to a longitudinal direction of the connector.
  • a plurality of laterally protruding and resilient retaining elements are arranged, which are bent out laterally from the side wall at a bending point, with their free front area having a rectangular shape with upper and lower edges and a front edge aligned transversely thereto.
  • at least one retaining element has a torsional deformation about its longitudinal axis in its free front area.
  • a plurality of, in particular all retaining elements exhibit such torsional deformation.
  • the retaining element is preferably tilted outwards at the torsional deformation.
  • the upper edge of the rectangular retaining element is further out than the lower edge. Due to the torsional deformation, the front edge of the retaining element is also tilted outwards at an angle. It is therefore aligned at an angle to the main plane of the side wall.
  • This design has the advantage that the retaining element grips better into the adjacent inner wall of the hollow profile and effectively secures the connector against unwanted pulling out of the attached hollow profile.
  • the retaining element is given optimal retention properties by the combination of the rectangular shape with the torsional deformation.
  • the respective side wall of the connector can have a side wall area with a sloping back flank, preferably directly connected to a retaining element and its bending point.
  • the sloping back flank can have an angle ( ⁇ ) of 35° or less, e.g. in a range of approx. 27° - 35°, against the main plane of the base.
  • This design of the connector with a sloping back flank has independent inventive significance and can also be used without the torsional deformation, e.g. in other connectors with rectangular retaining elements according to the prior art mentioned at the beginning.
  • the back flank which slopes down towards the floor, has the advantage that the side wall area in question has a larger closed wall surface and a height that only gradually decreases over the back flank. This improves the dimensional stability and in particular the bending strength of the connector in this area.
  • a high bending strength is an advantage when a spacer frame consisting of one or more hollow profiles with an inserted connector is handled and moved in space, in particular pivoted, during insulating glass production. Considerable stress can occur at the joint between two hollow profile ends and an inserted connector.
  • the sloping back flank can merge at the lower end in an acute-angled, preferably rounded groove into an upright side wall section aligned transversely to the ground.
  • This side wall section can end at the front edge and the next retaining element of the side wall.
  • the connector can have a run-on slope on the free edge of the side walls on each of its front sides, which passes over a protruding hump into the upper edge of the retaining element adjacent to the front side.
  • the hump can be arranged above the bending point of the retaining element.
  • the hump has the advantage that it can provide independent height guidance and frontal support for the connector in the attached hollow profile.
  • the hump can have the same height above the floor as the free edge of the side walls in the middle connector area and, if necessary, also at the upper edges of the other retaining elements on the same side wall.
  • the retaining element can be arranged below the hump. Arranging the hump above the bending point of the retaining element in question is advantageous for connector stability.
  • the retaining elements of the connector have straight and parallel upper and lower edges, which preferably also run parallel to the base, ie to its main plane.
  • the front edge of the retaining elements is preferably aligned transversely, in particular perpendicularly, to the preferably parallel upper and lower edges of the retaining element(s).
  • the respective upper and lower edges result in upper and lower corners. These can be the same or different.
  • the upper corner further away from the ground has a rounded shape. This is advantageous in conjunction with the torsional deformation and the further out upper edge and upper corner and for engaging the hollow profile.
  • the lower corner can be sharp-edged.
  • the retaining elements are separated from their side wall on the underside by a thin, straight axial cut with closely spaced parallel cutting edges and with a preferred parallel alignment to the ground.
  • This shape is advantageous for cutting free the retaining elements of a metal connector. Due to the thin axial cut with closely spaced parallel cutting edges and a small cutting width, the side wall height of the wall section below the cut can be maximum, which is advantageous for the bending strength of the connector.
  • the thin axial cut allows the width of the retaining elements along their front edge and the length of the upright bending point to be particularly large. This is advantageous for the local torsion and for the targeted deformability of the retaining elements as well as for the retention in the plug connection with metallic hollow profiles.
  • the retaining elements When plugged into the hollow profile, the retaining elements can spring around the upright bending point and thereby elastically deflect laterally, while being deformation-resistant in the other direction, transverse to the ground.
  • the upper corner of the retaining elements which is further away from the ground, can grip particularly well on the inner wall of a metallic hollow profile, in particular a light metal or steel profile, and can achieve a high Develop a restraining effect.
  • the aforementioned deformation stability prevents the restraining elements from springing and weakening the restraint across the floor. This is a significant difference to connectors for plastic profiles, whose restraining elements are flexible and give way across the floor due to large-format cutouts and grooves at the bottom, which is due to the low strength of hollow plastic profiles.
  • the cutting width (wt) of the thin axial separating cut can be 0.01 mm to 0.7 mm, preferably 0.01 mm to 0.5 mm, particularly preferably 0.01 mm to 0.1 mm.
  • the twisted retaining elements can have particular advantages with a particularly preferred cutting width (wt) in the range of 0.01 mm to 0.1 mm, in particular 0.01 mm or 0.02 mm.
  • wt cutting width
  • the retaining elements can support themselves in the contact area on the wall section against forces directed transversely to the floor. This improves the vertical stability and the said deformation stability of the plug connector and the plug connection. This is particularly advantageous in conjunction with the slanted back flank.
  • the plug connector can support itself in the free edge area of its side walls with the aligned upper edges of the central and middle retaining elements as well as with the aligned hump of the front retaining elements in the metal hollow profile.
  • the separating cut lengths (lt) of the axial separating cuts of the retaining elements can be of different sizes. They can vary depending on the width of the connector.
  • the separating cut lengths (lt) can be between 0.5 mm and 4.0 mm, preferably between 1.0 mm and 2.5 mm.
  • the retaining elements arranged adjacent to the connector center can have a smaller separating cut length (lt) of e.g. 1.0 mm to 2.0 mm than the retaining elements following in the direction of the connector front side, whose separating cut length (lt) can be e.g. 2.0 mm to 3.0 mm.
  • the aforementioned groove or the adjacent upright side wall area can extend to the axial cut of the next retaining element. This is advantageous for the controllable twisting of the retaining elements with a stamp-like deployment tool, for example.
  • the retaining elements are angled outwards from their side walls and point towards the centre of the connector. They can be sprung over by a hollow profile attached to the front side and then immediately latch onto the inner wall of the profile when undesirable pull-out forces occur.
  • the axial length of the retaining elements from the bending point to the leading edge is greater than their width along the leading edge.
  • the connector is preferably designed as a straight connector. Alternatively, a corner angle is possible.
  • the connector can have a connector leg on either side of a connector center.
  • the connector legs pointing in different directions Connector legs can be designed in the same way.
  • the side walls of the connector have a row of three or more retaining elements on both sides of the connector center or on the connector legs.
  • the retaining elements arranged on both sides of the connector center on the respective side walls can have different heights above the ground.
  • the height refers, for example, to the respective upper edge of the retaining elements.
  • Such a height offset is advantageous for creating differently high and separate engagement points of the retaining elements on the adjacent hollow profile inner wall. Due to the differently high engagement points, the various retaining elements grip better with the hollow profile wall and offer overall improved retention against unwanted pull-out.
  • the retaining element arranged adjacent to the front side has a lower height above the ground than the other retaining elements on the same side wall in the axial direction towards the center of the connector.
  • the upper edge of the retaining element adjacent to the front side can be arranged lower than the other upper edges.
  • the retaining elements arranged on both sides of the connector center on the respective side walls can have different widths along their front edges.
  • the retaining elements adjacent to the front side can have the smallest width.
  • the retaining elements arranged adjacent to the connector center can have the same or slightly larger width.
  • the one or more retaining elements arranged in between can have the largest width. The differences in width can lead to different spring stiffnesses. They can also cause different torsion shapes.
  • the retaining elements arranged on both sides of a connector center on the respective side walls adjacent to the connector center can have a higher spring stiffness than the other retaining elements.
  • the higher spring stiffness can be achieved by a shorter length of the separating cut and a consequent shortening of the retaining element length.
  • the pairs of retaining elements located opposite each other on both sides of a central longitudinal direction of the connector can have different projection widths.
  • the pairs of retaining elements adjacent to the front of the connector can have a smaller projection width than the other pairs of retaining elements following in the direction of the connector center.
  • the smaller projection width facilitates the attachment of a hollow profile.
  • the larger projection width is advantageous for increasing the retention effect. It is also advantageous if the retaining element adjacent to the connector center has a higher spring stiffness than the other retaining elements following in the direction of the front.
  • the side walls are preferably aligned vertically or with a minimal, outward-facing slope to the base of the connector. This is particularly important for metallic Hollow profiles are advantageous.
  • the base can have a base tongue with a stiffener on each end face. This can in particular be an interlocking or mutual bending and offset of the tongue halves. This stabilizes the connector when a hollow profile is plugged on.
  • the base can have one or more through holes, which can be used, for example, to shoot through clips to attach a window muntin.
  • the base can have a uniform shape across the width, flat on the outside, and in the plug connection can lie flat on the bottom of the hollow profile, which is preferably essentially flat.
  • the edge transitions of the base into the respective side wall can lie flat on the hollow profile base and be supported here.
  • the base can also have one or more, preferably two, edge-side axial base beads, each of which can serve to accommodate an axial row of perforations on the hollow profile.
  • the raised base beads are directed towards the cavity in the connector surrounded by the base and side walls.
  • the one or more channel-shaped base beads are formed locally in the base and at a lateral distance from the adjacent longitudinal edge of the base and the transition to the side wall there.
  • the outside of the otherwise preferably flat base can be arranged at the same height on both sides of the base bead(s).
  • the connector In the plug connection, the connector can lie flat on the base of the hollow profile in the middle base area and at the transitions to the side walls and be supported.
  • the claimed connector is advantageously designed as a single piece. It can therefore be used universally and also for different types of metallic hollow profiles. It is preferably manufactured as a stamped and bent part from a metallic sheet, in particular from a galvanized steel strip.
  • the metallic connector has a high level of mechanical stability and can still be handled ergonomically and inserted into a hollow profile with little force.
  • the claimed plug connection of spacers of an insulating glazing is formed by a hollow profile and an inserted plug connector.
  • the hollow profile is designed as a metal profile, in particular a light metal or stainless steel profile, and as a metal profile has metallic inner walls.
  • the spacer can be designed in the shape of a frame. It can be bent from a single hollow profile, with the two hollow profile ends being connected at the joint by the inserted plug connector. Alternatively, the frame-shaped spacer can be formed from several straight and/or bent hollow profiles with plug connectors at the joints.
  • the base of the connector is arranged on a profile base of the hollow profile, which in the installed position faces the interior of the insulating glazing.
  • the base of the connector bridges the joint between the hollow profile ends plugged onto the connector on both sides.
  • the hollow connector allows a granulated drying agent located in the hollow profile to flow through the joint.
  • the claimed connector and the claimed plug connection can comprise the following design features, which can be used individually or in combination.
  • One or more retaining elements of the connector can be tilted outwards due to the torsional deformation, whereby the upper edge of the retaining element or elements is located further outwards than the lower edge in the free front area of the retaining element or elements.
  • retaining elements can exhibit torsional deformation.
  • the side wall of the connector can have a side wall region with a back flank sloping towards the bottom of the connector following a retaining element and its bending point.
  • the sloping dorsal flank can merge at the lower end in an acute-angled, preferably rounded throat into an upright side wall section (31) aligned transversely to the ground.
  • the upright sidewall section may terminate at the leading edge of the next retaining element.
  • the upright sidewall section may also terminate at the separating cut of the next retaining element.
  • the sloping back flank may have an angle ( ⁇ ) of 35° or less, e.g. in a range of about 27° - 35°, against the main plane of the ground.
  • the connector can have a run-on bevel on the front side at the free edge of the side walls, which transitions via a protruding hump into the upper edge of the retaining element adjacent to the front side.
  • the hump can be arranged above the bending point of the said retaining element.
  • the retaining elements of the connector have straight and parallel upper and lower edges.
  • top and bottom edges of the connector retaining elements may be parallel to the bottom of the connector.
  • the retaining elements of the connector can each have a front edge aligned transversely to their upper and lower edges, preferably a straight front edge with upper and lower corners.
  • the upper corner of the front edge of a retaining element may be rounded.
  • the retaining elements of the connector are each separated from their side wall at the bottom by a thin, straight axial cut with parallel and closely spaced cutting edges.
  • the axial cut can run parallel to the bottom of the connector.
  • the retaining elements of the connector can be angled outwards from their side walls and pointing towards a connector centre.
  • the axial length (1) of the retaining elements of the connector may be greater than their width (b) along the front edge of the retaining elements.
  • the side walls of the connector may each have a row of three or more retaining elements on either side of a connector center.
  • the retaining elements of the connector arranged on both sides of a connector center on the respective side walls can have different heights (h1,h2) of their respective upper edge above the ground.
  • the retaining element arranged adjacent to the front side of the connector can have a lower height (h1) above the ground than the other retaining elements following in the axial direction towards the connector center, which can have a height (h2).
  • the further retaining elements which follow the retaining element arranged adjacent to the front side of the connector in the axial direction towards the center of the connector, can each have the same height (h2) of their respective upper edge above the bottom of the connector.
  • the height (h2) of the retaining elements near the center and the axially following central retaining elements can correspond to the height of the free edge of the side walls in the area of the connector center and also to the height at the zenith of the humps on the front retaining elements.
  • the retaining elements preferably do not protrude in height beyond the free edge of the side walls in the area of the connector center.
  • the retaining elements arranged on both sides of a connector center on the respective side walls of the connector can have different widths (b15,b15,b16) along their front edge.
  • the retaining elements arranged adjacent to the front side and the connector center of the connector can have a smaller width (b14,b16) along their front edge than one or more retaining elements arranged between them.
  • the side walls of the connector can be directed slightly outwards and tilted by an angle ( ⁇ ) against the vertical.
  • the angle ( ⁇ ) of the side walls of the connector can be up to 10°, preferably up to 5°, particularly preferably between 1.5° and 3°.
  • the connector can have a base tongue on each of the front sides with a stiffening, in particular a twist on the outer tongue edge.
  • the connector may have a base with through holes arranged on both sides of a connector center.
  • the connector can be designed as a straight connector.
  • the connector can be designed in one piece.
  • the connector can be designed as a metallic connector.
  • the connector can be designed as a stamped and bent part made of a metallic sheet, in particular sheet steel.
  • the connector can be made of galvanized steel strip.
  • the hollow profile can be designed as a metal profile, in particular as a light metal profile or as a steel profile.
  • the hollow profile can be designed as a drawn, pressed or rolled metal profile.
  • the hollow profile can be made entirely of metal, in particular light metal or stainless steel.
  • the base of the connector can be arranged on a profile base of the hollow profile which faces the interior of the insulating glazing.
  • the invention relates to a plug connector (1) and a plug connection (2) comprising a plug connector (1) and a hollow profile (3) of a spacer of an insulating glazing.
  • the invention further relates to a manufacturing method and an opening tool (46) for a plug connector (1).
  • Figure 1 to 12 show the connector (1) and its components in different views.
  • the plug connection (2) formed by a connector (1) and at least one plugged hollow profile (3) or hollow profile end is shown in Figure 13 to 15 shown.
  • Figure 16 to 18 illustrate the manufacturing process and the removal tool (46) for producing a connector (1) from a circuit board (45).
  • the spacer of an insulating glazing preferably has a frame-like shape and consists in the aforementioned manner of one or more hollow profiles (3) which are attached to a Figure 13 shown joint (49) with their preferably flat front sides butt together.
  • the plug connector (1) is inserted into the two hollow profiles (3) or hollow profile ends, with its connector center (4) being arranged in the area of the joint (49) by means of a center finding device (6).
  • hollow profiles (3) which includes both design variants of two different hollow profiles or of a single bent hollow profile and its two hollow profile ends.
  • the connector (1) is made of metal. It is preferably manufactured as a stamped and bent part from a metal sheet or a metallic plate (45).
  • the connector (1) can be manufactured from a galvanized steel strip, for example.
  • the one or more hollow profiles (3) are preferably designed as metal profiles. They can be designed, for example, as rolled, drawn or extruded metal profiles. Various metals are suitable as materials, preferably stainless steel or a light metal, in particular an aluminum alloy.
  • the connector (1) and the one or more hollow profiles (3) can be adapted to each other.
  • Figure 13 to 15 show this design.
  • the connector (1) is preferably designed as a straight connector. It preferably has a one-piece shape.
  • the connector (1) has a longitudinal direction (5) and a connector center (4) or a Figure 3 On both sides of the connector centre (4) the Each connector (1) has a connector leg (7,8).
  • the design of the connector legs (7,8) can be similar.
  • the connector (1) has a Figure 6, 7 and 15 It consists of a base (11) with a main plane shown in dash-dotted lines and two upright side walls (12) adjoining the longitudinal edges of the base (11).
  • the end regions of the side walls (12) located on the front sides (9) of the connector (1) can be Figure 3 and 5 each be bent diagonally inwards.
  • the side walls (12) are e.g. in Figure 6 and 15 perpendicular to the floor (11) and to its main plane shown in dash-dotted lines.
  • Figure 7 shows a variant of the connector (1) with side walls (12) each pointing outwards at an angle.
  • the bent end area of the right-hand side wall (12) is not shown.
  • the side walls (12) pointing outwards at an angle are each tilted at the transition point (50) to the floor (11) by an angle ( ⁇ ) against the vertical shown in dashed lines.
  • the tilt angle ( ⁇ ) of the respective side wall (12) can be up to 10°, for example. It is preferably up to 5°, particularly preferably between 1.5° and 3°.
  • the vertical refers to the aforementioned vertical side wall alignment to the floor or to its main plane.
  • the angle ( ⁇ ) between the respective side wall (12) and the base (11) or its main plane is accordingly up to 100°, preferably up to 95° and particularly preferably between 91.5° and 93°.
  • the connector (1) is positively received in the hollow profiles (3).
  • the hollow profiles (3) have Figure 15 circumferential profile walls (42,43,44) which enclose a cavity in which the plugged connector (1) is accommodated.
  • the profile wall (42) forms a profile base which faces the interior of the insulating glazing.
  • the two adjoining profile walls (43) form side walls, with the profile wall (44) opposite the profile base (42) being designed as a profile roof.
  • a curved recess can be present between the profile roof (44) and the side walls (43).
  • the base (11) can have one or more raised axial base beads (40), in each of which an axial row of perforations (48) on the profile base (42) can be accommodated.
  • the perforations (48) are gas-permeable and allow the gas arranged in the interior of the pane to come into contact with a granulated drying agent located in the one or more hollow profiles (3).
  • the one or more channel-shaped base beads (40) curve in the direction of the cavity (10). They can be formed locally in the base (11).
  • the base beads (40) are arranged, for example, on the longitudinal edges of the base (11) and the transitions (50) to the side walls (12).
  • the base beads (40) are each arranged at a lateral distance from the adjacent longitudinal edge of the base (11) and from the transition (50) there to the side wall (12).
  • Figure 6, 7 and 15 show this arrangement.
  • the outside (51) of the otherwise preferably flat base (11) can be arranged at the same height on both sides of the base bead(s) (40).
  • the plug connector (1) can lie flat on the base (42) of the hollow profile (3) in the middle base area and at the transitions (50) to the side walls (12) and be supported.
  • the base bead(s) (40) can also be located at another point on the plug connector (1), e.g. in the middle base area above a central row of perforations there.
  • the U-shaped connector (1) has open front sides (9) and an axially continuous inner cavity (10).
  • the base (11) faces the interior of the insulating glazing and rests against the profile base (42), bridging the joint (49).
  • the hollow connector (1) enables the granulated drying agent to flow between the hollow profiles (3) and across the joint (49).
  • the connector (1) has the said edge-side side walls (12) extending from the base (11) and a centering device (6) for limiting the insertion depth of the connector legs (7,8) in the respective hollow profile (3).
  • the retaining elements (14, 15, 16) each have a free front region (22) which extends laterally relative to the side wall (12) and a rear transition region (21) with a bending point (17) at which the retaining elements (14, 15, 16) are bent out laterally from the side wall (12) and the side wall region (28) there.
  • the retaining elements (14, 15, 16) each have a rectangular shape in the free front area (22) in side view with upper and lower edges (18, 19) and a front edge (20) aligned transversely thereto.
  • the edges (18, 19, 20) preferably have a straight shape.
  • the upper and lower edges (18, 19) are arranged parallel to one another. They are preferably also aligned parallel to the floor (11).
  • an upper and preferably rounded corner (23) is formed at the transition point of the respective upper edge (18) and the front edge (20).
  • an upper and preferably rounded corner (23) is formed at the transition point between the front edge (20) and the lower edge (19).
  • a lower corner (24) is formed, which can be rectangular and sharp-edged.
  • At least one of the retaining elements (14,15,16) has a torsional deformation (26) about its longitudinal axis (25) on its free front region (22).
  • the torsional deformation (26) is in Figure 16 to 18 In the other Figures 1 to 15 it cannot be seen for the sake of clarity.
  • all retaining elements (14,15,16) have the said torsional deformation (26).
  • the respective retaining element (14, 15, 16) is tilted outwards at the torsional deformation (26).
  • the upper edge (18) and in particular the upper corner (23) are located further outwards than the lower edge (19) or the lower corner (24).
  • Figure 18 shows this position with a dashed plumb line.
  • the upper corner (23) further outwards grips the inside of the adjacent side profile wall (43) of the inserted hollow profile (3) and counteracts a pull-out movement of the hollow profile (3).
  • the lower edge (19) or lower corner (24) can be located further out than the upper edge (18) or upper corner (23).
  • the side walls (12) have the side wall region (28) at the rear, preferably direct, connection to a retaining element (14, 15, 16) and its bending point (17).
  • the side wall region (28) has a back flank (29) at its upper edge which slopes downwards towards the base (11).
  • Such a sloped back flank (29) is also present at the rear connection to the free edge (13) close to the middle.
  • the back flank (29) can have an angle ( ⁇ ) of 35° or less, e.g. in the range of approx. 27° - 35°, with respect to the main plane of the base (11).
  • the angles ( ⁇ ) can be the same for all back flanks (29) and can be, for example, approx. 21°. It is also possible to provide an angle ( ⁇ ) of approx. 35° for a central retaining element (15).
  • the back flank (29) is directed towards the next retaining element (15, 16). At its lower end, it merges into an upright side wall section (31) aligned transversely to the floor (11). An acute-angled and preferably rounded groove (30) is formed at the transition point. In the area of the back flank (29), the side wall height gradually decreases.
  • the upright side wall section (31) ends at the next retaining element (15, 16).
  • the slanted back flank (28) can be arranged on one or more retaining elements (14, 15, 16). It is preferably arranged on the retaining element (14) adjacent to the connector center (4) and the retaining element (15) that follows next in the direction of the front side (9).
  • the slanted back flank (28) can also be arranged on the center finding (6).
  • the retaining elements (14, 15, 16) are each separated from their side wall (12) at their lower edge (19) via a straight axial separating cut (27) with parallel cutting edges.
  • the axial separating cut (27) runs parallel to the base (11).
  • the separating cut (27) is narrow and has closely adjacent parallel cutting edges.
  • the cutting width (wt) of the narrow or thin axial separating cut (27) is 0.01 mm or 0.02 mm in a particularly preferred embodiment.
  • the cutting width (wt) can also be somewhat larger and be up to 0.1 mm.
  • Cutting widths (wt) of up to 0.5 mm or even up to 0.7 mm are also possible.
  • the cutting width (wt) is the distance between the adjacent parallel cutting edges.
  • the upright side wall sections (31) each end at the axial separating cut (27).
  • the retaining elements (14, 15, 16) are each laterally inclined outwards from their side wall (12) and point towards the connector center (4).
  • the side walls (12) each have a row of three retaining elements (14, 15, 16) on both sides of the connector center (4) and on the connector legs (7, 8), which are arranged one behind the other in the longitudinal direction (5).
  • the number of retaining elements (14, 15, 16) can also be greater and can be, for example, four or more.
  • the connector (1) has a run-on bevel (34) on its front sides (9) and on the free edge (13) of the side walls (12). This rises from the front side (9) to the connector center (4) and makes it easier to insert a hollow profile (3).
  • the run-on bevels each pass over a protruding hump (35) into the upper edge (18) of the retaining element (16) adjacent to the front side (9).
  • the hump (35) is arranged in the area above the bending point (17).
  • the hump (35) falls towards the upper edge (18) of the retaining element (16).
  • the hump (35) can have a height above the base (11) that corresponds to the height of the free edge (13) of the relevant side wall (12) in the area of the connector center (4). This can be the maximum height of the free edge (13).
  • the free edge (13) and the hump (35) can be in the inserted position according to Figure 15 at the transition point of the side wall (43) into the profile roof (44) and at the recess there.
  • the straight axial upper edges (18) of the other retaining elements (14, 15) can also be at this height above the floor (11), at least in the non-twisted or slightly twisted area near the bending point (17).
  • the axial length (1) of the retaining elements (14,15,16) between the bending point (17) and the front edge (20) is greater than their width (b) along the front edge (20).
  • Figure 4 , 8th and 9 show this design.
  • the retaining elements (14, 15, 16) arranged on both sides of the connector center (4) on the respective side walls (12) have different widths (b14, b15, b16) along their front edge (20).
  • the retaining elements (14, 16) arranged adjacent to the front side (9) and to the connector center (4) have a width (b14, b16) which is smaller than the width (b15) of the one retaining element (15) arranged between them or of a possible plurality of such intermediate retaining elements.
  • the width (b16) of the retaining element (16) can be the same size or smaller than the width (b14) of the retaining element (14) adjacent to the connector center (14).
  • the axial lengths (1) of the retaining elements (14,15,16) can also be different. According to Figure 8a the length (114) of the retaining element (14) adjacent to the connector center (4) can be shorter than the length (115) of the in the direction of the front side (9) of the following retaining element (15) and shorter than the length (116) of the following retaining element(s) (16).
  • the axial lengths (115,116) of the following retaining elements (15,16) can be the same.
  • the axial lengths (114,115,116) are each measured from the bending point (17) to the front edge (20) of the respective retaining element (14,15,16).
  • the length (1t14) of the separating cut (27) of the retaining element (14) near the center can also be shorter than the length (1t15) of the separating cut (27) of the following retaining element (15).
  • the separating cut (27) of the front-side retaining element (16) can also have a greater length (1t16) than the separating cut (27) of the retaining element (14) adjacent to the connector center (4).
  • the separating cut lengths (1t15,1t16) can be the same or different.
  • the separating cut lengths (1t) can be between 0.5 mm and 4.0 mm. A range between 1.0 mm and 2.5 mm is preferred.
  • the separating cut length (1t16) of the front-side retaining element (16) can be, for example, 2.0 mm to 2.5 mm.
  • the separating cut length (1t15) of the retaining element(s) (15) following in the direction of the connector center can also be, for example, 2.0 mm to 2.5 mm.
  • the separating cut length (1t14) of the retaining element (14) near the center can be, for example, 1.5 mm to 2.0 mm.
  • the retaining element (14) near the center can therefore have a higher spring stiffness than the subsequent retaining element (15).
  • the retaining element (14) closest to the connector center (4) on the side walls (12) or on the connector legs (7,8) thus grips particularly well and firmly on the metallic inside of the profile side wall (43) and prevents accidental removal.
  • the retaining elements (16) adjacent to the front side (9) can have a relatively low spring stiffness and, due to their greater flexibility, make it easier to insert the hollow profile (3) or the end of the hollow profile. This can also be the case with the retaining element(s) (15) arranged between them.
  • the retaining elements (14, 15, 16) arranged on the respective side walls (12) on both sides of the connector center (4) each have different heights (h1, h2) above the floor (11).
  • the height refers to the upper edge (18) of the retaining elements (14, 15, 16).
  • the retaining elements (16) arranged adjacent to the front side (9) have a height (h1) which is less than the height (h2) of the other retaining elements (14, 15) following in the axial direction towards the connector center (4).
  • These following retaining elements (14, 15) can have the same height (h2).
  • the height (h2) can correspond to the height of the free edge (13) in the region of the connector center (4) and also to the height of the hump (35) at its zenith.
  • Figure 5 shows in the top view different projection widths (w1, w2) of the pairs of retaining elements (14, 15, 16) that are opposite each other on both sides of the longitudinal direction (5).
  • the pairs of retaining elements (16) that are adjacent on the front side (9) have a projection width (w1) that is smaller than the projection width (w2) of the other pairs of retaining elements (14, 15).
  • the smaller projection width makes it easier to insert a hollow profile (3) or hollow profile end.
  • the other pairs of retaining elements (14, 15) can have the same projection width (w2) as one another.
  • the middle pairs of retaining elements (15) can have a lower spring stiffness than the pairs of retaining elements (14) adjacent to the connector center (4) due to their greater length (115). As a result, they can also give way in a soft, springy manner when a hollow profile (3) or hollow profile end is attached and then grip onto the inside of the respective profile side wall (43).
  • the centering (6) of the connector (1) can be designed in different ways. In the embodiment shown, it is designed according to Figure 4 and 12 formed by cut-out, laterally protruding and mutually directed resilient stop lugs (32) on the free edge (13) of the side walls (12). A hollow profile (3) pushed on the front side passes over the first resiliently deflecting stop lugs (32) and then abuts against the other stop lugs (32) arranged beyond the connector center (4).
  • the center finding (6) can be designed using one-sided or two-sided fixed stops or a combination of spring lugs and fixed stops.
  • Single-sided, wedge-like fixed stops can be arranged on the connector center (4) on just one side wall (12) and with mutual axial offset.
  • the fixed stops can have a modified stop function.
  • One or more through holes (39) can be arranged on the base (12).
  • two through holes (39) are arranged on either side of the connector center (4).
  • the through holes (39) are arranged centrally and are designed as axially aligned slots. They can be axially spaced slightly from the connector centre (4).
  • the connector (1) or its base (11) has a base tongue (36) with a stiffener (37) on each of the front sides (9).
  • the base tongue projects upwards at an angle.
  • the stiffener (37) can be formed, for example, by an interlock (38) on the outer edge of the tongue.
  • an interlock (38) on the outer edge of the tongue.
  • An identifier (41) can be located on the base (11) or at another location of the connector (1), by which the connector (1) can be identified, e.g. with regard to its width dimension or its suitability or purpose for a certain width or inner width of a hollow profile (3).
  • Figure 16 to 18 illustrate by way of example part of the production of the connector (1) and the one or more torsional deformations (26).
  • the connector (1) is produced by punching and bending from a flat metal plate (45).
  • the respective retaining elements (14, 15, 16) and, if necessary, also the free edge (13) and the centering (6) are first punched out of the plate (45).
  • the retaining elements (14, 15, 16) or their front free area (22) are also separated from the side wall (12) in the area of the lower edge (19) by a separating cut (27).
  • a deployment tool (46) is used to form the torsional deformation (26) of the retaining elements (14,15,16).
  • This can be used as cylindrical stamp with a conical or rounded head part (47) and, if necessary, a flattening on the front.
  • the respective deployment tool (46) is advanced along its longitudinal axis and transversely to the main plane of the plate (45) to form the torsional deformation (26).
  • the tapered head part (47) strikes the upper and front end region of the respective retaining element (14, 15, 16). This is in particular the transition point between the upper edge (18) and the front edge (20). This area is contacted first and foremost by the deployment tool (46) and is carried along during the feed movement. This causes the respective retaining element (14, 15, 16) to tilt and twist about its longitudinal axis (25).
  • the deployment tool (46) also comes into contact with the other areas of the respective retaining element (14, 15, 16) and bends it outwards, whereby it is bent around the bending point (17) and positioned outwards from the side wall plane.
  • Figure 16 to 18 show this final position of the retaining elements (14,15,16), whereby the deployment tools (46) are shown in a distanced position for the sake of clarity.
  • the respective retaining element (14,15,16) is moved from its initial position in the plate plane to the position in Figure 16 to 18 shown, extended final position.
  • retaining elements (14,16) On the connector legs (7,8) and their left and right side walls (12) there can be two retaining elements (14,16) each instead of the three retaining elements (14,15,16) shown.
  • the retaining elements (14,16) close to the center and on the front can be retained and have the design described above, with the middle retaining element (15) being omitted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Wing Frames And Configurations (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Claims (15)

  1. Connecteur pour profilés creux (3) d'entretoises d'un vitrage isolant, qui sont réalisés sous forme de profilés creux métalliques (3) avec des côtés intérieurs métalliques des parois (43, 44, 45) de profilés creux, le connecteur (1) présentant une section transversale essentiellement en forme de U avec des côtés frontaux ouverts (9), un espace creux intérieur (10) axialement continu et un fond (11) orienté vers l'espace intérieur de la vitre du vitrage isolant en position de montage, ainsi que des parois latérales (12) situées sur le bord et partant du fond (11), et un trou central (6), chaque bord libre (13) des parois latérales (12) présentant une pluralité d'éléments de retenue élastiques évasés latéralement (14, 15, 16) qui, en vue latérale, dans leur zone avant libre (22), présentent une forme rectangulaire avec des bords supérieur et inférieur (18, 19) ainsi qu'un bord avant (20) orienté transversalement par rapport à ceux-ci et qui, dans leur zone de transition arrière (21), sont pliés latéralement en un point de flexion (17) de la paroi latérale (12), au moins un élément de retenue (14, 15, 16) présentant sur sa zone avant libre (22) une déformation de torsion (26) de préférence inclinée vers l'extérieur autour de son axe longitudinal (25), dans lequel
    - les éléments de retenue (14, 15, 16) présentent des bords supérieurs et inférieurs (18, 19) droits et parallèles, et présentent de préférence un bord avant (20) , de préférence droit, orienté transversalement aux bords supérieurs et inférieurs (18, 19), avec des coins supérieurs et inférieurs (23, 24) et
    - les éléments de retenue (14, 15, 16) sont séparés de leur paroi latérale (12) au niveau de la face inférieure par une fine découpe axiale droite (27) avec des bords découpés parallèles étroitement adjacents.
  2. Connecteur selon la revendication 1, caractérisé en ce que la paroi latérale (12) présente, faisant suite à un élément de retenue (14, 15, 16) et au point de pliage (17), une zone de paroi latérale (28) avec un flanc arrière (29) incliné en direction du fond (11), le flanc arrière (29) incliné se transformant de préférence, à l'extrémité inférieure en une gorge (30) à angle aigu, de préférence arrondie, en une section de paroi latérale (31) droite et orientée transversalement par rapport au fond (11), qui se termine de préférence sur le bord avant (20) de l'élément de retenue (15, 16) suivant.
  3. Connecteur selon la revendication 1 ou la revendication 2, caractérisé en ce que le connecteur (1) présente sur chacune des faces frontales (9) un biseau avant (34) sur le bord libre (13) des parois latérales (12), qui se prolonge par une bosse saillante (35) dans le bord supérieur (18) de l'élément de retenue (16) adjacent à la face frontale (9).
  4. Connecteur selon l'une des revendications précédentes, caractérisé en ce que, dans la zone avant libre (22) de l'élément ou des éléments de retenue tordu(s) (14, 15, 16), le bord supérieur (18) de l'élément de retenue est situé plus à l'extérieur que le bord inférieur (19).
  5. Connecteur selon l'une des revendications précédentes, caractérisé en ce que la longueur axiale (1) des éléments de retenue (14, 15, 16) est supérieure à leur largeur (b) le long du bord avant (20).
  6. Connecteur selon l'une des revendications précédentes, caractérisé en ce que la fine découpe axiale de séparation (27) présente une largeur de découpe (wt) comprise entre 0,01 mm et 0,7 mm, de préférence entre 0,01 mm et 0,5 mm, de façon encore préférée, entre 0,01 mm et 0,1 mm.
  7. Connecteur selon l'une des revendications précédentes, caractérisé en ce que les longueurs (lt) des découpes axiales de séparation (27) des éléments de retenue (14, 15, 16) sont comprises entre 0,5 mm et 4,0 mm, de préférence entre 1,0 mm et 2,5 mm.
  8. Connecteur selon l'une des revendications précédentes, caractérisé en ce que les éléments de retenue (14, 15, 16) agencés de part et d'autre d'un centre de connecteur (4) sur les parois latérales respectives (12) présentent des hauteurs différentes (h1, h2) au-dessus du fond (11).
  9. Connecteur selon l'une des revendications précédentes, caractérisé en ce que les éléments de retenue (14, 15, 16) disposés de part et d'autre d'un centre de connecteur (4) sur les parois latérales respectives (12) ont des largeurs différentes (b15, b15, b16) le long de leur bord avant (20).
  10. Connecteur selon l'une des revendications précédentes, caractérisé en ce que les éléments de retenue (14) agencés de part et d'autre d'un centre de connecteur (4) sur les parois latérales respectives (12) adjacentes au centre de connecteur (4), ont une rigidité élastique plus élevée que celle des autres éléments de retenue (15, 16).
  11. Connecteur selon l'une des revendications précédentes, caractérisé en ce que les paires d'éléments de retenue (14, 15, 16) situées en face les unes des autres de part et d'autre d'une direction longitudinale centrale (5) du connecteur (1) présentent des largeurs d'ouverture différentes (w1, w2), les paires d'éléments de retenue (16) respectivement adjacentes à la face frontale (9) ayant une largeur d'ouverture (w1) inférieure à la largeur d'ouverture (w2) des autres paires d'éléments de retenue (14, 15).
  12. Connecteur selon l'une des revendications précédentes, caractérisé en ce que les parois latérales (12) sont orientées perpendiculairement au fond (11) ou sont orientées vers l'extérieur avec une inclinaison minimale et sont inclinées d'un angle (α) par rapport à la verticale.
  13. Connecteur selon l'une des revendications précédentes, caractérisé en ce que le fond (11) présente une ou plusieurs, de préférence deux, moulures de fond axiales en relief (40) côté bord, qui est/sont formées chacune pour recevoir une rangée axiale de perforations (48) sur le profilé creux (3) et qui est/sont agencée(s) avec une distance latérale respective par rapport au bord longitudinal adjacent du fond (11) et à la transition (50) vers la paroi latérale (12), le côté extérieur (51) du fond (2), par ailleurs de préférence plat, étant agencé à la même hauteur des deux côtés de la ou des moulure(s) de fond (40).
  14. Connexion d'entretoises d'un vitrage isolant, la connexion (2) présentant un profilé creux métallique (3) avec des côtés intérieurs métalliques des parois (43, 44, 45) du profilé creux et un connecteur (1), caractérisée en ce que le connecteur (1) est réalisé selon l'une des revendications 1 à 13.
  15. Connecteur selon la revendication 14, caractérisé en ce que le fond (11) du connecteur (1) est disposé sur un fond de profilé (42) du profilé creux (3) qui est orienté vers l'espace intérieur du vitrage isolant, le fond (11) du connecteur (1) étant de préférence en contact plan avec le fond de profilé (42) au niveau de sa zone de fond centrale et au niveau de ses transitions (50) vers les parois latérales (12).
EP22167687.7A 2021-04-15 2022-04-11 Connecteur enfichable et connexion enfichable Active EP4074934B1 (fr)

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DE202021102028.8U DE202021102028U1 (de) 2021-04-15 2021-04-15 Steckverbinder und Steckverbindung

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DE202004004933U1 (de) 2004-03-26 2005-07-21 Kronenberg, Max Gerader Steckverbinder
DE202009008694U1 (de) * 2009-06-23 2010-11-11 Kronenberg, Max Steckverbinder
DE202015105061U1 (de) 2015-09-24 2016-12-29 Ralf M. Kronenberg Steckverbinder und Steckverbindung
DE202017101315U1 (de) 2017-03-08 2018-06-11 Ralf M. Kronenberg Steckverbinder und Steckverbindung
PL244056B1 (pl) 2019-03-29 2023-11-27 Grzywacz Cezary P P H U Plastmax Łącznik wtykowy do łączenia końcówek profili okiennych
DE202019102085U1 (de) * 2019-04-11 2020-07-13 Ralf M. Kronenberg Steckverbinder und Steckverbindung

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EP4074934A1 (fr) 2022-10-19
EP4074934C0 (fr) 2024-06-26
DE202021102028U1 (de) 2022-07-19
DE102022108789A1 (de) 2022-10-20

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