EP1179652B1 - Corner joint - Google Patents

Corner joint Download PDF

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Publication number
EP1179652B1
EP1179652B1 EP01118645A EP01118645A EP1179652B1 EP 1179652 B1 EP1179652 B1 EP 1179652B1 EP 01118645 A EP01118645 A EP 01118645A EP 01118645 A EP01118645 A EP 01118645A EP 1179652 B1 EP1179652 B1 EP 1179652B1
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EP
European Patent Office
Prior art keywords
shaft part
corner connector
slide body
connector according
sliding body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01118645A
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German (de)
French (fr)
Other versions
EP1179652A3 (en
EP1179652A2 (en
Inventor
Gabriele Reichel-Scheiderer
Johann Reichel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PHI TECHNIK fur FENSTER und TUEREN GmbH
Original Assignee
PHI TECHNIK fur FENSTER und TUEREN GmbH
PHI TECHNIK fur FENSTER und T
Phi Technik fur Fenster und Tueren GmbH
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Publication date
Application filed by PHI TECHNIK fur FENSTER und TUEREN GmbH, PHI TECHNIK fur FENSTER und T, Phi Technik fur Fenster und Tueren GmbH filed Critical PHI TECHNIK fur FENSTER und TUEREN GmbH
Publication of EP1179652A2 publication Critical patent/EP1179652A2/en
Publication of EP1179652A3 publication Critical patent/EP1179652A3/en
Application granted granted Critical
Publication of EP1179652B1 publication Critical patent/EP1179652B1/en
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Classifications

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

Definitions

  • the invention relates to a corner joint for connecting two mitred cut, preferably made of weldable plastic existing hollow chamber profiles of windows, doors or the like, with a shaft portion and a sliding body in the longitudinal direction of the shaft portion in an associated hollow profile of windows, doors or the like its mitred cut side are inserted from, wherein the sliding body in turn is displaceable in the longitudinal direction of the shaft portion relative to this and seen in the insertion of the shaft portion in the associated hollow chamber profile of windows, doors or the like, having a rear end portion for applying a displacement force.
  • Corner connectors serve to connect two miter-cut hollow chamber profiles in which they are fixed to one another.
  • an important condition is to fix each corner connector inserted into a hollow chamber profile particularly firmly within the hollow chamber profile so that the corner connector can fulfill its intended stiffening and fastening function.
  • a corner connector which is taken with some oversize in the associated hollow section and there additionally fixed by screws.
  • the hammering usually with a hammer, however, allows an exact alignment of the oblique end faces of the corner connector to the miter surface of the hollow chamber profile barely, which can lead to difficulties in subsequent welding or bonding.
  • this type of installation (attachment) of the corner connector is time consuming and therefore expensive.
  • a corner joint in which centrally in its longitudinal direction, a continuous channel is provided and in the Einschiebe fingerem end a plurality of longitudinal grooves are mounted.
  • a long screw passed Through the longitudinal channel is a long screw passed, which is screwed into the Einschiebe paragraphen end of the corner connector in a spreader, which is slowly pulled there when tightening the screw there in the corner connector and thereby spreads between the longitudinal grooves formed areas of the corner connector to the outside against the hollow chamber profile.
  • a to be fixed by spreading in an associated plastic hollow chamber profile corner connector is also described in DE-GM 89 10 401, which in turn attracted by a projecting through it in the longitudinal direction of a screw sitting on the top of the corner clamping wedge and it is spread outwards.
  • the DE-PS 42 15 661 describes a corner connector, in which also a clamping wedge is used, but here builds up its clamping action via a movement transverse to the insertion direction of the corner connector in the hollow chamber profile.
  • a clamping wedge In order to clamp this clamping wedge on the top of the corner connector inserted into the hollow section profile corner connector, an opening is provided on the inclined surface of the corner connector through which a small drive wedge can be taken in the longitudinal direction, the clamping wedge on the corner connector moves laterally with increasing immigration and thus causes the desired tension.
  • a corner connector in which the wedging effect is achieved in the hollow section by a mounted on one side of the corner slide body, which acts as a clamping wedge and is wedged self-locking for attachment of the corner connector between this and the plastic hollow section.
  • the sliding body is provided with two wedge surfaces, via which it is supported on two correspondingly attached to one of the associated side surface on the shank portion of the corner connector inclined surfaces.
  • the sliding body has an end portion projecting beyond the miter surface, over which it can be displaced relative to the corner connector inserted into the hollow profile from its oblique side, by e.g.
  • the desired wedging of the sliding body between corner connector and hollow chamber profile is generated by means of hammer blows.
  • DE-PS 44 29 709 describes a corner connector of the type mentioned for connecting two mitred hollow chamber profiles.
  • the corner connector is with a Schafttei! for insertion into the associated Hohhuntprofil, provided on this inclined surface and provided with a sliding body which is displaceable relative to the shaft part with at least one wedge surface provided thereon on at least one correspondingly associated, formed on a side surface of the shaft portion inclined support surface and one on the inclined surface the shaft part projecting, designed in the form of a tongue end portion for applying the displacement force on the inserted into the hollow section profile shank part, wherein the pairing of oblique support surface and wedge surface against forces perpendicular to the sliding movement of the sliding body is self-locking.
  • the slopes of the at least one wedge surface on the sliding body and the at least one associated oblique support surface on the shaft part - seen in the insertion direction of the shaft part in the hollow chamber profile - are sloping towards the longitudinal center plane of the shaft portion, ie such that they at a Move the sliding body against the insertion direction in the hollow chamber profile run up on the wedge and thus achieve the desired spreading effect.
  • the areas of the hollow chamber profile are loaded by the spreading effect, which serve to receive glass panes, or which should be fitted into the door or window sticks so that a good sealing effect is possible.
  • these surfaces In order to ensure a dimensional accuracy when clamping the corner connector in the hollow chamber profile precisely on these surfaces, these surfaces must be particularly strong, that is usually thick, trained. This leads to high material usage and to a relatively high weight.
  • the invention proposes a new corner connector of the type mentioned, in which the sliding body at its rear end portion opposite, in the insertion front end portion terminates in one or two laterally aussp Dr Drssen leg (s) and the Shank part has a spreading element for spreading out of the leg (s), by means of which this (r) is laterally spreadable during a displacement of the sliding body relative to the shaft part from a starting position of the sliding body for wedging the corner connector in the hollow chamber profile, wherein the Sp Schwarzweg each leg becomes larger with increasing displacement of the sliding body relative to the shaft portion.
  • the displacement of the sliding body takes place relative to the shaft part in a direction opposite to the insertion in the hollow chamber profile in order to trigger the spreading of the leg (s) (s).
  • the leg (s) of the sliding body extend or extend in the insertion direction and are / are elastically expandable transversely to the insertion direction. Upon displacement of the sliding body relative to the shaft part, the leg (s) are spread out elastically transversely to the insertion direction and thus come to a wedging-in contact against such sides of the hollow-chamber profile in which not so high dimensional accuracy is required.
  • the shaft part when the sliding body by spreading against the insertion into the hollow section triggers the spreading of the / thighs, a stop on a displacement of the sliding body relative to the shaft portion of the starting position of the sliding body in its Introducing prevented, the shape of the shaft portion either comprises a surface which serves as this stop, or a stopper attached to the shaft part extra.
  • this stop prevents that is inserted too far in the insertion direction in the hollow section in a corner connector inserted into the hollow section of the slide body by the stop z. B. comes against the expansion element to the plant.
  • the two legs are not elastically spread in the starting position. This ensures easy insertion of the corner connector into the hollow chamber profile from the mitred side.
  • the sliding body is preferably formed symmetrically to its longitudinal central axis. This achieves a uniform wedging.
  • Eckverbinders the mating of inner surface of each leg and correspondingly associated outer surface of the expansion element against forces perpendicular to the sliding movement of the sliding body is self-locking. This is preferably achieved in that at least one inner surface and / or at least one outer surface is provided with a transversely to the direction of the relative movement between sliding body and shaft part attached corrugations is / are. As a result, an effective self-locking wedging is achieved.
  • the sliding body with at least one attached thereto wedge surface on at least one corresponding, formed on a side surface of the shaft portion oblique support surface relative to the shaft portion, wherein by means of the wedge surface and the inclined support surface during the displacement of the sliding body (from its initial position against the Insertion direction), the distance of the sliding body from the longitudinal center plane of the shaft part increases.
  • a wedging is achieved perpendicular to the longitudinal center plane, whereby a particularly secure and uniform wedging is achieved.
  • the wedge surface of the or each leg is attached to the side facing the shaft part and the expansion element on the inclined support surface and from above.
  • two wedge surfaces are provided on the sliding body and two associated inclined support surfaces on the shaft part in the corner connector according to the invention. It can be a oblique support surface may be provided on the rear end portion of the shaft portion in the insertion direction and the other inclined support surface on the front end portion of the shaft portion in the insertion direction. As a result, a splitting of the wedging effect and thus a particularly uniform wedging is achieved.
  • the pairing of oblique support surface and wedge surface against forces perpendicular to the sliding movement of the sliding body is self-locking.
  • This can be achieved by providing at least one wedge surface on the sliding body and / or at least one inclined support surface on the shaft part with a corrugation mounted transversely to the direction of the relative movement between the sliding body and the shaft part.
  • the shaft part is formed as a one-piece part, preferably as a plastic part or as a plastic injection-molded part, made of weldable or glued plastic.
  • the sliding body may be integrally formed. As the material for the sliding body of the same plastic as that can be used for the shaft part.
  • a corner connector 1 is shown in a perspective view, which is inserted positively in a hollow chamber profile 2 of a window or door frame.
  • the hollow chamber profile is provided at its end shown in Fig. 1 with a miter 3 at 45 ° to its longitudinal axis.
  • the corner connector 1 has at its insertion in the rear end also an inclined surface 4, which, like the miter 1 of the hollow chamber profile 2 has an inclination of 45 ° and is aligned with this, as shown in FIG.
  • the inclined surface 4 is composed at the corner joint 1 of a plurality of individual faces, each of which represents the upper end surface of a small elevation 4 ', said elevations 4' in parallel groups, as shown in FIG. 1 easily removable, are attached.
  • Fig. 1 shows first for a clearer illustration, the corner connector 1 without the required for its fixation in the hollow section 2 sliding body. 5
  • Fig. 2 illustrates in a perspective Expionsions ein the corner connector 1, which consists of a shaft portion 6 and a sliding body 5 associated therewith.
  • the corner connector 1 is inserted with its shaft part 6 positively in the longitudinal direction in the hollow chamber profile 2 and guided there.
  • the inclined surface 4 is formed, which is provided at its two lateral boundaries with laterally projecting stop strips 7, the insertion of the corner connector 1 in the hollow section 2 of this end laterally in the hollow shape of the hollow chamber profile 2 lead, while the shaft portion 6 is mounted in a slightly offset in the hollow chamber profile 2 in the insertion direction X backwards, not shown in the figure, metallic reinforcing tube.
  • Fig. 2 On the upper side of the shank part 6 shown in Fig. 2, i. on the side which protrudes in the longitudinal cross-section of the shaft portion 6 at an obtuse angle ⁇ (Fig. 3) from its inclined surface 4 (and at the same time represents the shortest longitudinal side of all four sides of the corner connector), as Fig. 2 shows, two oblique , wedge-shaped support surfaces 8, 9 are arranged, wherein the wedge surface 8 is disposed close to the inclined surface 4 and the wedge surface 9 at the insertion-side end portion of the corner connector 1. On the wedge surface 9 sits approximately in the middle (seen in the longitudinal direction), an expansion element 10 which protrudes from the wedge surface 9.
  • the expansion element 10 has two outer surfaces 11, 12 facing the side edges of the wedge surface 9 (FIG. 5), which are designed such that they are perpendicular to the longitudinal center plane M (see FIG. lie and on the other hand converge in the insertion direction X.
  • the wedge surfaces 8, 9 and the outer surfaces 11, 12 of the expansion element 10 are each provided with a perpendicular to the insertion direction X corrugations 13, 14 are provided.
  • the sliding body 5 which is associated with the shaft part 6, in turn, as shown in FIG. 2, the longitudinal sectional view in Fig. 4 and the plan view in Fig. 5 show, of an elongate shaped body comprising a Verkeilungsabêt 15 and an end portion 18, which projects beyond the miter surface (inclined surface 4) of the shaft part 6.
  • the sliding body 5 is formed symmetrically to its longitudinal central axis and its Verkeilungsäbêt 15 runs at its front in insertion direction X end portion in two elasticallylesp Sonbare legs 16, 17 which extend in the insertion position shown in Fig. 5 of the sliding body 5 in the insertion direction X.
  • the two legs 16, 17 are relaxed in the starting position of the sliding body 5 on the shaft part 6 and not spread apart.
  • the legs 16, 17 at their front in the insertion direction X end portion facing each other inner surfaces 19 which converge in the insertion direction X against each other.
  • the inner surfaces 19 are preferably formed so that they are perpendicular to the longitudinal center plane M (Fig. 3) and in the (shown in Fig. 5) starting position abut the corresponding associated outer surfaces 11, 12 of the expansion element 10.
  • the inner surfaces 19 of the legs 16, 17 are each provided with a perpendicular to the insertion direction X attached corrugations 20 (in Figs. 2 and 4 only the corrugation 20 is shown on the inner surface 19 of the leg 16).
  • the inner surfaces 19 may also be inclined to the longitudinal center plane M ( Figure 3) at an angle other than 90 °, for example, such that they converge towards one another with increasing distance from the longitudinal center plane M.
  • the outer surfaces 11, 12 of the expansion element 10 are provided with a correspondingly adapted inclination with respect to the longitudinal center plane M, so that in this case the inner surfaces 19 of the legs 16, 17 abut against the correspondingly associated inner surfaces 11, 12 of the expansion element 10 ,
  • the inner surfaces 19 of the legs 16, 17 abut against the correspondingly associated inner surfaces 11, 12 of the expansion element 10
  • the legs 16, 17 not only spread apart transversely to the insertion elastic, but also shifted upwards with respect to the longitudinal center plane M, so that when wedging in the hollow chamber profile 2 (by pulling of the slide body 5 against the direction X) a wedging effect is achieved simultaneously in two mutually perpendicular wedging directions, namely opposite to all sides thereof.
  • the sliding body 5 also has two abutment surfaces 23, 24, one of which is connected to one of the inner surfaces 19 of the legs 16, 17 and which extend perpendicular to the insertion direction X and perpendicular to the longitudinal center plane M (FIG. 3). These Stop surfaces 23, 24 of the sliding body 5 are in the initial position shown in Fig. 5 against a trained in the insertion direction X of the corner connector 1 rear end of the shaft part 6 stop surface 25 of the expander 10 at. This ensures that the sliding body 5 in the insertion direction X can not be moved to the starting position shown in FIG. 5 relative to the shaft part 6 and thus always a part of the end portion 18 of the sliding body 5 projects beyond the inclined surface 4 of the shaft part 6, when the corner connector is inserted into the hollow chamber profile 2.
  • the wedge surface 22, which is attached to the front in the insertion direction X end portion of the sliding body 5, is composed of two separate sections, which are formed on the shaft part 6 during assembly facing underside of the two legs 16, 17.
  • the width of the wedging portion 15 corresponds to the width of the inclined support surface 8, d. H. the distance between the upwardly raised portions 26 of the side walls of the shank portion 4 extending in the longitudinal direction of the shank portion 6 from the inclined surface 4 to the insertion end of the support surface 8, so that the support surface 8 is arranged slightly recessed.
  • the legs 16, 17 opposite the remaining Verkeilungsabites 15 laterally outwardly at their front end in insertion direction X thickened such that the mutually weggewandten outer sides 27 of these thickenings in the starting position shown in Fig. 5 have a distance to each other, which the width of the shaft part 6 corresponds.
  • the thickenings of the legs 16, 17 in the starting position are not laterally beyond the shank part 6, as a result of which this can be easily introduced into the hollow chamber profile 2 with the sliding body 5 placed in the starting position.
  • the end portion 18 of the sliding body 5 is formed in the form of an elongated web and provided at its free end with a projecting T-shaped end piece 28, which, seen in the longitudinal direction of the sliding body 5 relative to the width of the end portion 18 on the sliding body 5, a lateral thickening formed.
  • the inclinations of the wedge surfaces 21 and 22 on the sliding body 5 and the associated inclined support surfaces 8 and 9 are all the same size.
  • the inner surfaces 19 of the legs 16, 17 and the outer surfaces 11, 12 of the expansion element 10 are arranged so that in such a movement of the sliding body 5 against the insertion direction X and the legs 16, 17 are spread apart elastically by their relative movement to the expansion element 10 , and the further, the larger the occurring relative displacement.
  • the sliding body 5 is pulled against the insertion direction X on the one hand and on the other hand, the sliding out in such a movement from the hollow section 2 sliding movement of the sliding body 5 also triggered movement of the shaft portion 6 in the direction of the hollow chamber profile 2 out finished as soon as the inclined surface 4 of the corner connector 1 is exactly aligned with the miter surface 3 of the hollow chamber profile 2.
  • the outer surfaces 11, 12 and the inner surfaces 19 is also (which also has a suitable Material combination between the materials of the sliding body 5 and the shaft part 6 could be achieved) quickly achieved a self-locking wedging.
  • the tool is removed and then the rest of the end portion 18 of the sliding body 5 projecting beyond the inclined surfaces 4 forwards aborted by a short hammer blow from above.
  • a predetermined breaking point at the end portion 18 of the sliding body 5 By suitable arrangement of a (not shown in the figures) predetermined breaking point at the end portion 18 of the sliding body 5, a particularly easy removal of this protruding residual portion after completion of the assembly can be achieved, even a manual abort would be possible.
  • the pulling tool itself is used to remove the projecting end portion by the end portion 18 is sheared off, for example by turning the pulling tool, which is still in engagement with him.
  • Two hollow chamber profiles 2 provided with corner joints 1 thus fixed in them can then be fastened to one another by welding or gluing or in an otherwise suitable manner along the inclined surfaces 3 and 4.
  • the corner connector 1 can also be formed so that the support surface of the shaft part 6, on which the sliding body. 5 rests, not obliquely, but parallel to the longitudinal center plane M (Fig. 3) is aligned.
  • the sliding body 5 is not raised during a displacement relative to the shaft part 6.
  • the legs 16, 17 are still spread apart elastically during this shift, so that they thereby come to a wedging contact with the lateral walls of the metallic insert profile within the hollow chamber profile 2.
  • the inner surfaces 19 of the legs 16, 17 and the outer surfaces 11, 12 of the expansion element 10 may of course also be inclined relative to the longitudinal center plane M (Fig.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Paper (AREA)
  • Processing Of Terminals (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Dowels (AREA)
  • Joining Of Corner Units Of Frames Or Wings (AREA)

Abstract

The corner connector (1) has a shaft part (6) and a sliding body (5), displaced in conjunction in the longitudinal direction of the shaft part, for insertion in one of the hollow plastics door or window profiles, before relative displacement of the sliding body for expansion of a pair of anchoring arms (16,17) by cooperation with a wedge element (10).

Description

Die Erfindung bezieht sich auf einen Eckverbinder zum Verbinden zweier auf Gehrung geschnittener, vorzugsweise aus verschweißbarem Kunststoff bestehender Hohlkammerprofile von Fenster, Türen oder dergleichen, mit einem Schaftteil und einem Schiebekörper, die in Längsrichtung des Schaftteils in ein zugeordnetes Hohlkammerprofil von Fenstern, Türen oder dergleichen von dessen auf Gehrung geschnittener Seite aus einführbar sind, wobei der Schiebekörper seinerseits in Längsrichtung des Schaftteils relativ zu diesem verschiebbar ist und, in Einführrichtung des Schaftteiles in das zugeordnete Hohlkammerprofil von Fenstern, Türen oder dergleichen gesehen, einen hinteren Endabschnitt zum Aufbringen einer Verschiebekraft aufweist.The invention relates to a corner joint for connecting two mitred cut, preferably made of weldable plastic existing hollow chamber profiles of windows, doors or the like, with a shaft portion and a sliding body in the longitudinal direction of the shaft portion in an associated hollow profile of windows, doors or the like its mitred cut side are inserted from, wherein the sliding body in turn is displaceable in the longitudinal direction of the shaft portion relative to this and seen in the insertion of the shaft portion in the associated hollow chamber profile of windows, doors or the like, having a rear end portion for applying a displacement force.

Eckverbinder dienen dazu, zwei auf Gehrung geschnittene Hohlkammerprofile, in denen sie fixiert sind, miteinander zu verbinden. Dabei besteht eine wichtige Bedingung darin, jeden in ein Hohlkammerprofil eingeschobenen Eckverbinder besonders fest innerhalb des Hohlkammerprofiles zu fixieren, damit der Eckverbinder seine bestimmungsgemäße Versteifungs- und Befestigungsfunktion erfüllen kann.Corner connectors serve to connect two miter-cut hollow chamber profiles in which they are fixed to one another. In this case, an important condition is to fix each corner connector inserted into a hollow chamber profile particularly firmly within the hollow chamber profile so that the corner connector can fulfill its intended stiffening and fastening function.

So ist ein Eckverbinder bekannt, der mit etwas Übermaß in das zugehörige Hohlkammerprofil eingeschlagen und dort zusätzlich durch Schrauben fixiert wird. Das Einschlagen, üblicherweise mit einem Hammer, läßt jedoch ein genaues Ausrichten der schrägen Endflächen des Eckverbinders zur Gehrungsfläche des Hohlkammerprofiles kaum zu, was zu Schwierigkeiten beim späteren Verschweißen oder Verkleben führen kann. Zudem ist diese Art der Montage (Befestigung) des Eckverbinders zeitaufwendig und damit kostenintensiv.Thus, a corner connector is known, which is taken with some oversize in the associated hollow section and there additionally fixed by screws. The hammering, usually with a hammer, however, allows an exact alignment of the oblique end faces of the corner connector to the miter surface of the hollow chamber profile barely, which can lead to difficulties in subsequent welding or bonding. In addition, this type of installation (attachment) of the corner connector is time consuming and therefore expensive.

Aus der DE-PS 37 12 478 ist ein Eckverbinder bekannt, in dem zentral in seiner Längsrichtung ein durchgehender Kanal vorgesehen ist und in dessen einschiebeseitigem Endbereich mehrere Längsnuten angebracht sind. Durch den Längskanal ist eine lange Schraube hindurchgeführt, die am einschiebeseitigen Ende des Eckverbinders in ein Spreizteil eingeschraubt ist, das seinerseits beim Anziehen der Schraube dort langsam in den Eckverbinder hineingezogen wird und dabei die zwischen den Längsnuten ausgebildeten Bereiche des Eckverbinders nach außen hin gegen das Hohlkammerprofil verspreizt.From DE-PS 37 12 478 a corner joint is known, in which centrally in its longitudinal direction, a continuous channel is provided and in the Einschiebeseitigem end a plurality of longitudinal grooves are mounted. Through the longitudinal channel is a long screw passed, which is screwed into the Einschiebeseitigen end of the corner connector in a spreader, which is slowly pulled there when tightening the screw there in the corner connector and thereby spreads between the longitudinal grooves formed areas of the corner connector to the outside against the hollow chamber profile.

Ein durch Aufspreizen in einem zugeordneten Kunststoff-Hohlkammerprofil zu fixierender Eckverbinder wird auch im DE-GM 89 10 401 beschrieben, bei dem wiederum über eine durch ihn in Längsrichtung hindurchragende Schraube ein auf der Oberseite des Eckverbinders sitzender Spannkeil angezogen und dabei nach außen verspreizt wird.A to be fixed by spreading in an associated plastic hollow chamber profile corner connector is also described in DE-GM 89 10 401, which in turn attracted by a projecting through it in the longitudinal direction of a screw sitting on the top of the corner clamping wedge and it is spread outwards.

Solche bekannte Eckverbinder, bei denen zum Befestigen im Hohlkammerprofil die Keilwirkung über von Schrauben bewegten Keilen ausgelöst wird, setzen jedoch einen relativ komplizierten, mehrteiligen, Kunststoff- und Metallteile umfassenden Aufbau voraus, der kostenaufwendig ist. Zudem ist die Montage relativ schwierig, da der beim Anziehen der jeweiligen Stellschraube zwangsläufig auf den jeweiligen Eckverbinder vom Benutzer ausgeübte in dessen Einschieberichtung wirkenden Druck die Gefahr eines unerwünschten Hineinwanderns des Eckverbinders in das Hohlprofil mit sich bringt. Wird dabei zu stark auf die Schraube gedrückt, geht die vorher erreichte Ausrichtung zwischen Gehrungsfläche des Hohlkammerprofiles und Schrägfläche des Eckverbinders verloren, so daß dann ein Verschweißen oder Verkleben der Schrägflächen zweier so fixierter Eckverbinder in der Gehrungsfläche der zu verbindenden Hohlkammerprofile nicht mehr sichergestellt ist.However, such known corner connectors in which the wedge effect is triggered by wedges moved by screws for fastening in the hollow chamber profile, however, require a relatively complicated, multi-part, plastic and metal parts comprehensive construction, which is costly. In addition, the assembly is relatively difficult, since the pressure exerted on the respective corner connector by the user exerted in the insertion direction pressure brings the risk of unwanted intrusion of the corner connector in the hollow profile with it when tightening the respective screw. If it is pressed too much on the screw, the previously achieved alignment between miter surface of the hollow chamber profile and inclined surface of the corner connector is lost, so that then welding or gluing the inclined surfaces of two fixed corner connectors in the miter surface of the hollow chamber profiles to be joined is no longer ensured.

Die DE-PS 42 15 661 beschreibt einen Eckverbinder, bei dem ebenfalls ein Spannkeil eingesetzt wird, der hier jedoch seine Spannwirkung über eine Bewegung quer zur Einschieberichtung des Eckverbinders in das Hohlkammerprofil aufbaut. Um diesen Spannkeil auf der Oberseite des Eckverbinders bei in das Hohlkammerprofil eingeschobenem Eckverbinder verspannen zu können, ist an der Schrägfläche des Eckverbinders eine Öffnung vorgesehen, durch die in dessen Längsrichtung ein kleiner Treibkeil eingeschlagen werden kann, der mit zunehmendem Einwandern den Spannkeil am Eckverbinder seitlich verschiebt und damit die gewünschte Verspannung bewirkt. Doch auch bei einem solchen Eckverbinder besteht dabei die Gefahr eines unerwünschten Hineinrutschens des Eckverbinders in das Hohlkammerprofil beim Einschlagen des Treibkeiles mit dem Hammer, da die dabei auftretenden Stoßkräfte auch bei einem eventuell schon erreichten festeren Sitz des Eckverbinders im Hohlkammerprofil noch immer ein weiteres Einwandern des Eckverbinders in das Hohlkammerprofil auslösen können. Bei diesem bekannten Eckverbinder können die drei verschiedenen Einzelteile zwar aus Kunststoff gefertigt werden, so daß zusätzliche metallische Elemente nicht mehr erforderlich sind. Die Gesamtmontage ist jedoch wieder relativ ungenau und schwierig und erfordert besondere Geschicklichkeit.The DE-PS 42 15 661 describes a corner connector, in which also a clamping wedge is used, but here builds up its clamping action via a movement transverse to the insertion direction of the corner connector in the hollow chamber profile. In order to clamp this clamping wedge on the top of the corner connector inserted into the hollow section profile corner connector, an opening is provided on the inclined surface of the corner connector through which a small drive wedge can be taken in the longitudinal direction, the clamping wedge on the corner connector moves laterally with increasing immigration and thus causes the desired tension. But even with such a corner connector while there is a risk of unwanted slipping of the corner connector in the hollow section when driving the drive wedge with the hammer, as the impact forces occurring even with a possibly already achieved firmer fit of the corner connector in the hollow section still another immigration of the corner connector can trigger into the hollow chamber profile. In this known corner connector, the three different items may indeed be made of plastic, so that additional metallic elements are no longer required. However, the total assembly is again relatively inaccurate and difficult and requires special skill.

Im DE-GM 91 13 235 wird ein Eckverbinder beschrieben, bei dem die Verkeilwirkung im Hohlkammerprofil durch einen an einer Seite des Eckverbinders angebrachten Schiebekörper erreicht wird, der als Spannkeil wirkt und zur Befestigung des Eckverbinders zwischen diesem und dem Kunststoff-Hohlkammerprofil selbsthemmend verkeilt wird. Zu diesem Zweck ist der Schiebekörper mit zwei Keilflächen versehen, über die er sich auf zwei an einer der zugeordneten Seitenfläche am Schaftteil des Eckverbinders entsprechend angebrachten Schrägflächen abstützt. Der Schiebekörper weist einen über die Gehrungsfläche vorstehenden Endabschnitt auf, über den er bei in das Hohlkammerprofil eingestecktem Eckverbinder von dessen Schrägseite her relativ zu diesem verschoben werden kann, indem z.B. mittels Hammerschlägen die gewünschte Verkeilung des Schiebekörpers zwischen Eckverbinder und Hohlkammerprofil erzeugt wird. Ist die gewünschte Verkeilwirkung erreicht, wird der außen über die Gehrungsfläche noch überstehende Rest des Endabschnitts mit dem Hammer abgeschlagen, wonach die Verschweißung zweier mit solchen Eckverbindern vesehener Hohlkammerprofile erfolgen kann. Um beim Einschlagen des Schiebekörpers mittels eines Hammers ein unerwünschtes Hineinwandern des Eckverbinders in das Hohlkammerprofil zu verhindern, ist am Eckverbinder an dessen Schrägfläche ein seitlich bis auf die Gehrungsfläche des den Eckverbinder umgebenden Hohlkammerprofils vorstehender Anschlag ausgebildet, der auch bei Schlägen auf den Schiebekörper die Ausrichtung des eingeführten Eckverbinders zur Gehrungsfläche des Hohlkammerprofils sicherstellt. Allerdings kann es bei sehr starken Schlägen doch dazu kommen, daß gelegentlich die Halteanschläge abbrechen. Zudem muß jeder Halteanschlag nach dem Verkeilen des Schiebekörpers extra entfernt werden, um eine gewünschte flächige Verschweißung oder Verklebung in der Gehrungsfläche sicherzustellen, was ebenfalls zu einer komplizierten Montage führt.In DE-GM 91 13 235 a corner connector is described in which the wedging effect is achieved in the hollow section by a mounted on one side of the corner slide body, which acts as a clamping wedge and is wedged self-locking for attachment of the corner connector between this and the plastic hollow section. For this purpose, the sliding body is provided with two wedge surfaces, via which it is supported on two correspondingly attached to one of the associated side surface on the shank portion of the corner connector inclined surfaces. The sliding body has an end portion projecting beyond the miter surface, over which it can be displaced relative to the corner connector inserted into the hollow profile from its oblique side, by e.g. The desired wedging of the sliding body between corner connector and hollow chamber profile is generated by means of hammer blows. Once the desired wedging effect has been achieved, the remainder of the end section still projecting beyond the miter surface is knocked off with a hammer, after which the welding of two hollow chamber profiles vesehen with such corner connectors can take place. In order to prevent the insertion of the sliding body by means of a hammer an undesirable intrusion of the corner connector in the hollow profile, a laterally up to the miter surface of the Eckverbinder surrounding hollow chamber profile projecting stop is formed on the corner connector on the sliding body the alignment of the inserted corner connector ensures the miter surface of the hollow chamber profile. However, it can happen with very strong blows that occasionally stop the holding stops. In addition, each retaining stop after wedging the sliding body must be extra removed to ensure a desired surface welding or bonding in the miter, which also leads to a complicated assembly.

Die DE-PS 44 29 709 beschreibt einen Eckverbinder der eingangs genannten Art zum Verbinden zweier auf Gehrung geschnittener Hohlkammerprofile. Der Eckverbinder ist mit einem Schafttei! zum Einführen in das zugeordnete Hohkammerprofil, einer an diesem angebrachten Schrägfläche und mit einem Schiebekörper versehen, der mit mindestens einer an ihm vorgesehenen Keilfläche auf wenigstens einer entsprechend zugeordneten, an einer Seitenfläche des Schaftteiles ausgebildeten schrägen Stützfläche relativ zum Schaftteil verschiebbar ist und einen über die Schrägfläche des Schaftteiles überstehenden, in Form einer Zunge ausgebildeten Endabschnitt zum Aufbringen der Verschiebekraft auf das in das Hohlkammerprofil eingesetzte Schaftteil aufweist, wobei die Paarung von schräger Stützfläche und Keilfläche gegenüber Kräften senkrecht zur Verschiebebewegung des Schiebekörpers selbsthemmend ausgeführt ist. Die Schrägen der mindestens einen Keilfläche am Schiebekörper und der mindestens einen zugeordneten schrägen Stützfläche am Schaftteil - in Einschieberichtung des Schaftteiles in das Hohlkammerprofil gesehen - sind zur Längsmittelebene des Schaftteiles hin abfallend ausgebildet, d.h. derart, daß sie bei einem Verschieben des Schiebekörpers entgegen der Einschieberichtung in das Hohlkammerprofil auf dem Keil hochlaufen und so die gewünschte Spreizwirkung erzielen.DE-PS 44 29 709 describes a corner connector of the type mentioned for connecting two mitred hollow chamber profiles. The corner connector is with a Schafttei! for insertion into the associated Hohkammerprofil, provided on this inclined surface and provided with a sliding body which is displaceable relative to the shaft part with at least one wedge surface provided thereon on at least one correspondingly associated, formed on a side surface of the shaft portion inclined support surface and one on the inclined surface the shaft part projecting, designed in the form of a tongue end portion for applying the displacement force on the inserted into the hollow section profile shank part, wherein the pairing of oblique support surface and wedge surface against forces perpendicular to the sliding movement of the sliding body is self-locking. The slopes of the at least one wedge surface on the sliding body and the at least one associated oblique support surface on the shaft part - seen in the insertion direction of the shaft part in the hollow chamber profile - are sloping towards the longitudinal center plane of the shaft portion, ie such that they at a Move the sliding body against the insertion direction in the hollow chamber profile run up on the wedge and thus achieve the desired spreading effect.

Bei einer solchen Ausbildung des Eckverbinders werden die Bereiche des Hohlkammerprofiles durch die Spreizwirkung belastet, die dazu dienen, Glasscheiben aufzunehmen, oder die in die Tür- bzw. Fensterstöcke so eingepaßt werden sollen, daß eine gute Abdichtwirkung möglich ist. Um somit beim Verspannen des Eckverbinders in dem Hohlkammerprofil gerade auf diesen Flächen eine Formtreue zu gewährleisten, müssen diese Flächen besonders fest, das heißt üblicherweise dick, ausgebildet sein. Dies führt zu großem Materialeinsatz und zu einem relativ hohen Gewicht.In such a design of the corner connector, the areas of the hollow chamber profile are loaded by the spreading effect, which serve to receive glass panes, or which should be fitted into the door or window sticks so that a good sealing effect is possible. In order to ensure a dimensional accuracy when clamping the corner connector in the hollow chamber profile precisely on these surfaces, these surfaces must be particularly strong, that is usually thick, trained. This leads to high material usage and to a relatively high weight.

Um die aufgezeigten Nachteile möglichst weitgehend zu beheben, schlägt die Erfindung einen neuen Eckverbinder der eingangs genannten Art vor, bei dem der Schiebekörper an seinem dem hinteren Endabschnitt gegenüberliegenden, in Einführrichtung vorderen Endabschnitt in einen oder zwei elastisch seitlich ausspreizbare(n) Schenkel ausläuft und das Schaftteil ein Spreizelement zum Ausspreizen des bzw. der Schenkel(s) aufweist, mittels dessen diese(r) bei einer Verschiebung des Schiebekörpers relativ zum Schaftteil von einer Ausgangsstellung des Schiebekörpers aus zum Verkeilen des Eckverbinders im Hohlkammerprofil seitlich ausspreizbar ist/sind, wobei der Spreizweg jedes Schenkels mit wachsendem Verschiebeweg des Schiebekörpers relativ zum Schaftteil größer wird. Bevorzugt erfolgt dabei die Verschiebung des Schiebekörpers relativ zum Schaftteil in einer Richtung entgegen der Einschieberichtung in das Hohlkammerprofil hinein, um das Ausspreizen des bzw. der Schenkel(s) auszulösen. Vorteilhafterweise erstreckt bzw. erstrecken sich dabei der bzw. die Schenkel des Schiebekörpers in Einführrichtung und ist/sind quer zur Einführrichtung elastisch ausspreizbar. Bei einem Verschieben des Schiebekörpers relativ zum Schaftteil wird/werden der/die Schenkel elastisch quer zur Einführrichtung ausgespreizt und kommt/kommen somit zu einer verkeilenden Anlage gegen solche Seiten des Hohlkammerprofils, bei denen eine nicht so hohe Formtreue erforderlich ist.In order to remedy the disadvantages as far as possible, the invention proposes a new corner connector of the type mentioned, in which the sliding body at its rear end portion opposite, in the insertion front end portion terminates in one or two laterally ausspreizbare leg (s) and the Shank part has a spreading element for spreading out of the leg (s), by means of which this (r) is laterally spreadable during a displacement of the sliding body relative to the shaft part from a starting position of the sliding body for wedging the corner connector in the hollow chamber profile, wherein the Spreizweg each leg becomes larger with increasing displacement of the sliding body relative to the shaft portion. Preferably, the displacement of the sliding body takes place relative to the shaft part in a direction opposite to the insertion in the hollow chamber profile in order to trigger the spreading of the leg (s) (s). Advantageously, the leg (s) of the sliding body extend or extend in the insertion direction and are / are elastically expandable transversely to the insertion direction. Upon displacement of the sliding body relative to the shaft part, the leg (s) are spread out elastically transversely to the insertion direction and thus come to a wedging-in contact against such sides of the hollow-chamber profile in which not so high dimensional accuracy is required.

In einer vorteilhaften Ausgestaltung der Erfindung weist das Schaftteil, wenn der Schiebekörper durch ein Verschieben entgegen der Einführrichtung in das Hohlkammerprofil das Ausspreizen des/der Schenkel auslöst, einen Anschlag auf, der ein Verschieben des Schiebekörpers relativ zum Schaftteil von der Ausgangsstellung des Schiebekörpers aus in dessen Einführrichtung verhindert, wobei die Form des Schaftteiles entweder eine Fläche, die als dieser Anschlag dient, oder einen am Schaftteil extra befestigten Anschlag umfaßt. Durch diesen Anschlag wird verhindert, daß bei einem in das Hohlkammerprofil eingesetzten Eckverbinder der Schiebekörper zu weit in Einführrichtung in das Hohlkammerprofil hineingeschoben wird, indem der Anschlag z. B. gegen das Spreizelement zur Anlage kommt.In an advantageous embodiment of the invention, the shaft part, when the sliding body by spreading against the insertion into the hollow section triggers the spreading of the / thighs, a stop on a displacement of the sliding body relative to the shaft portion of the starting position of the sliding body in its Introducing prevented, the shape of the shaft portion either comprises a surface which serves as this stop, or a stopper attached to the shaft part extra. By this stop prevents that is inserted too far in the insertion direction in the hollow section in a corner connector inserted into the hollow section of the slide body by the stop z. B. comes against the expansion element to the plant.

Bevorzugt sind die zwei Schenkel in der Ausgangsstellung nicht elastisch gespreizt. Damit wird ein leichtes Einführen des Eckverbinders in das Hohlkammerprofil von der auf Gehrung geschnittenen Seite aus sichergestellt.Preferably, the two legs are not elastically spread in the starting position. This ensures easy insertion of the corner connector into the hollow chamber profile from the mitred side.

Bei dem erfindungsgemäßen Eckverbinder ist der Schiebekörper bevorzugt symmetrisch zu seiner Längsmittelachse ausgebildet. Dadurch wird ein gleichmäßiges Verkeilen erreicht.In the corner connector according to the invention the sliding body is preferably formed symmetrically to its longitudinal central axis. This achieves a uniform wedging.

In einer weiteren vorteilhaften Ausgestaltung der Erfindung, bei der zwei elastisch spreizbare Schenkel vorgesehen sind, weisen die zwei Schenkel einander zugewandte Innenflächen, die in Ausgangsstellung des Schiebekörpers in Einführrichtung konvergieren, und das Spreizelement des Schaftteiles zwei den Innenflächen der Schenkel entsprechend zugeordnete Außenflächen auf, die ebenfalls in Einführrichtung konvergieren. Dadurch wird eine kontinuierlich anwachsende Verspreizung bei einer Verschiebung des Schiebekörpers relativ zum Schaftteil entgegen der Einführrichtung erreicht, was zu einer kontinuierlich anwachsenden Verspreizung des Eckverbinders im Hohlkammerprofil führt.In a further advantageous embodiment of the invention, in which two elastically spreadable legs are provided, the two legs facing each other inner surfaces converge in the starting position of the sliding body in the insertion direction, and the expansion element of the shaft part two the inner surfaces of the legs corresponding to associated outer surfaces, the also converge in the insertion direction. As a result, a continuously increasing spread is achieved with a displacement of the sliding body relative to the shaft part counter to the insertion direction, which leads to a continuously increasing Verspreizung of the corner connector in the hollow chamber profile.

In einer anderen vorteilhaften Ausgestaltung des erfindungsgemäßen Eckverbinders ist die Paarung von Innenfläche jedes Schenkels und entsprechend zugeordneter Außenfläche des Spreizelements gegenüber Kräften senkrecht zur Verschiebebewegung des Schiebekörpers selbsthemmend ausgeführt. Dies wird bevorzugt dadurch erreicht, daß mindestens eine Innenfläche und/oder mindestens eine Außenfläche mit einer quer zur Richtung der Relativbewegung zwischen Schiebekörper und Schaftteil angebrachten Riffelung versehen ist/sind. Dadurch wird eine wirksame Selbsthemmung bei Verkeilung erreicht.In another advantageous embodiment of the invention Eckverbinders the mating of inner surface of each leg and correspondingly associated outer surface of the expansion element against forces perpendicular to the sliding movement of the sliding body is self-locking. This is preferably achieved in that at least one inner surface and / or at least one outer surface is provided with a transversely to the direction of the relative movement between sliding body and shaft part attached corrugations is / are. As a result, an effective self-locking wedging is achieved.

Bevorzugt ist der Schiebekörper mit mindestens einer an ihm angebrachten Keilfläche auf wenigstens einer entsprechend zugeordneten, an einer Seitenfläche des Schaftteils ausgebildeten schrägen Stützfläche relativ zum Schaftteil verschiebbar, wobei mittels der Keilfläche und der schrägen Stützfläche bei der Verschiebung des Schiebekörpers (von dessen Ausgangsstellung aus entgegen der Einführrichtung) der Abstand des Schiebekörpers von der Längs-Mittelebene des Schaftteiles zunimmt. Dadurch wird zusätzlich zu der Verkeilung mittels der Schenkel parallel zur Längs-Mittelebene noch eine Verkeilung senkrecht zur Längs-Mittelebene erzielt, wodurch ein besonders sicheres und gleichmäßiges Verkeilen erreicht wird.Preferably, the sliding body with at least one attached thereto wedge surface on at least one corresponding, formed on a side surface of the shaft portion oblique support surface relative to the shaft portion, wherein by means of the wedge surface and the inclined support surface during the displacement of the sliding body (from its initial position against the Insertion direction), the distance of the sliding body from the longitudinal center plane of the shaft part increases. As a result, in addition to the wedging by means of the legs parallel to the longitudinal center plane still a wedging is achieved perpendicular to the longitudinal center plane, whereby a particularly secure and uniform wedging is achieved.

In einer weiteren vorteilhaften Ausgestaltung ist die Keilfläche des bzw. jedes Schenkels an dessen dem Schaftteil zugewandter Seite und das Spreizelement auf der schrägen Stützfläche und von dieser vorstehend angebracht.In a further advantageous embodiment, the wedge surface of the or each leg is attached to the side facing the shaft part and the expansion element on the inclined support surface and from above.

Bevorzugt sind bei dem erfindungsgemäßen Eckverbinder zwei Keilflächen am Schiebekörper und zwei zugeordnete schräge Stützflächen am Schaftteil vorgesehen. Dabei kann eine schräge Stützfläche an dem in Einführrichtung hinteren Endbereich des Schaftteils und die andere schräge Stützfläche an dem in Einführrichtung vorderen Endbereich des Schaftteils vorgesehen sein. Dadurch wird ein Aufteilen der Verkeilungswirkung und somit ein besonders gleichmäßiges Verkeilen erzielt.Preferably, two wedge surfaces are provided on the sliding body and two associated inclined support surfaces on the shaft part in the corner connector according to the invention. It can be a oblique support surface may be provided on the rear end portion of the shaft portion in the insertion direction and the other inclined support surface on the front end portion of the shaft portion in the insertion direction. As a result, a splitting of the wedging effect and thus a particularly uniform wedging is achieved.

In einer weiteren vorteilhaften Ausgestaltung der Erfindung ist die Paarung von schräger Stützfläche und Keilfläche gegenüber Kräften senkrecht zur Verschiebebewegung des Schiebekörpers selbsthemmend ausgeführt. Dies kann dadurch erreicht werden, daß mindestens eine Keilfläche am Schiebekörper und/oder mindestens eine schräge Stützfläche am Schaftteil mit einer quer zur Richtung der Relativbewegung zwischen Schiebekörper und Schaftteil angebrachten Riffelung versehen ist/sind. Dadurch wird eine gute Selbsthemmung beim Verkeilen erreicht.In a further advantageous embodiment of the invention, the pairing of oblique support surface and wedge surface against forces perpendicular to the sliding movement of the sliding body is self-locking. This can be achieved by providing at least one wedge surface on the sliding body and / or at least one inclined support surface on the shaft part with a corrugation mounted transversely to the direction of the relative movement between the sliding body and the shaft part. As a result, a good self-locking wedging is achieved.

Ganz besonders bevorzugt wird das Schaftteil als einstückiges Teil, vorzugsweise als Kunststoffteil oder als Kunststoff-Spritzgußteil, aus verschweißbarem bzw. verklebbarem Kunststoff ausgebildet. Auch der Schiebekörper kann einstückig ausgebildet sein. Als Material für den Schiebekörper kann der gleich Kunststoff wie der für das Schaftteil verwendet werden.Most preferably, the shaft part is formed as a one-piece part, preferably as a plastic part or as a plastic injection-molded part, made of weldable or glued plastic. Also, the sliding body may be integrally formed. As the material for the sliding body of the same plastic as that can be used for the shaft part.

Die Erfindung wird nachfolgend anhand der Zeichnung im Prinzip beispielshalber noch näher erläutert. Hierbei zeigen:

  • Fig. 1 eine gehrungsseitige Perspektivansicht des Endabschnitts eines Kunststoff-Hohlkammerprofiles mit eingeschobenem Schaftteil bei einem erfindungsgemäßen Eckverbinder (d.h. ohne Schiebekörper);
  • Fig. 2 einen erfindungsgemäßen Eckverbinder mit Schiebekörper (in Explosionsdarstellung);
  • Fig. 3 einen Längsmittelschnitt durch das Schaftteil aus Fig. 2 längs A-A;
  • Fig. 4 einen Längsschnitt durch den Schiebekörper aus Fig. 2, und
  • Fig. 5 eine Draufsicht auf den erfindungsgemäßen Eckverbinder.
The invention will be explained in more detail by way of example with reference to the drawing in principle. Hereby show:
  • 1 shows a miter side perspective view of the end portion of a plastic hollow chamber profile with inserted shaft part in a corner connector according to the invention (ie without slide body).
  • 2 shows a corner connector according to the invention with sliding body (in exploded view);
  • 3 shows a longitudinal center section through the shaft part of Figure 2 along AA ..;
  • Fig. 4 is a longitudinal section through the sliding body of Fig. 2, and
  • Fig. 5 is a plan view of the corner connector according to the invention.

In Fig. 1 ist in perspektivischer Darstellung ein Eckverbinder 1 gezeigt, der in ein Hohlkammerprofil 2 eines Fenster- oder Türrahmens formschlüssig eingesteckt ist. Das Hohlkammerprofil ist an seinem in Fig. 1 dargestellten Ende mit einer Gehrungsfläche 3 unter 45° zu seiner Längsachse versehen. Der Eckverbinder 1 weist an seinem in Einschieberichtung hinteren Ende ebenfalls eine Schrägfläche 4 auf, die ebenso wie die Gehrungsfläche 1 des Hohlkammerprofiles 2 eine Neigung von 45° hat und zu dieser ausgerichtet ist, wie Fig. 1 zeigt.In Fig. 1, a corner connector 1 is shown in a perspective view, which is inserted positively in a hollow chamber profile 2 of a window or door frame. The hollow chamber profile is provided at its end shown in Fig. 1 with a miter 3 at 45 ° to its longitudinal axis. The corner connector 1 has at its insertion in the rear end also an inclined surface 4, which, like the miter 1 of the hollow chamber profile 2 has an inclination of 45 ° and is aligned with this, as shown in FIG.

Wie aus Fig. 1 ersichtlich ist, setzt sich die Schrägfläche 4 am Eckverbinder 1 aus einer Vielzahl von einzelnen Teilflächen zusammen, deren jede jeweils die obere Endfläche einer kleinen Erhebung 4' darstellt, wobei diese Erhebungen 4' in parallelen Gruppen, wie aus Fig. 1 gut entnehmbar, angebracht sind.As can be seen from Fig. 1, the inclined surface 4 is composed at the corner joint 1 of a plurality of individual faces, each of which represents the upper end surface of a small elevation 4 ', said elevations 4' in parallel groups, as shown in FIG. 1 easily removable, are attached.

Fig. 1 zeigt zunächst zur klareren Darstellung den Eckverbinder 1 ohne den für dessen Fixierung im Hohlkammerprofil 2 erforderlichen Schiebekörper 5.Fig. 1 shows first for a clearer illustration, the corner connector 1 without the required for its fixation in the hollow section 2 sliding body. 5

Fig. 2 illustriert in einer perspektivischen Expiosionsdarsteliung den Eckverbinder 1, der aus einem Schaftteil 6 und einem diesem zugeordneten Schiebekörper 5 besteht. Der Eckverbinder 1 wird mit seinem Schaftteil 6 formschlüssig in Längsrichtung in das Hohlkammerprofil 2 eingesteckt und dort geführt. An dem in Einschieberichtung (Einführrichtung) X des Eckverbinders 1 hinteren Ende des Schaftteiles 6 ist die Schrägfläche 4 ausgebildet, die an ihren beiden seitlichen Begrenzungen mit seitlich überstehenden Anschlagleisten 7 versehen ist, die beim Einschieben des Eckverbinders 1 in das Hohlkammerprofil 2 dieses Ende seitlich in der Hohlform des Hohlkammerprofils 2 führen, während das Schaftteil 6 in einem im Hohlkammerprofil 2 in Einschieberichtung X etwas nach hinten versetzt angebrachten, in der Figur nicht gezeigten, metallischen Verstärkungsrohr geführt wird.Fig. 2 illustrates in a perspective Expionsionsstellung the corner connector 1, which consists of a shaft portion 6 and a sliding body 5 associated therewith. The corner connector 1 is inserted with its shaft part 6 positively in the longitudinal direction in the hollow chamber profile 2 and guided there. At the insertion direction in the direction (insertion) X of the corner connector 1 rear end of the shaft portion 6, the inclined surface 4 is formed, which is provided at its two lateral boundaries with laterally projecting stop strips 7, the insertion of the corner connector 1 in the hollow section 2 of this end laterally in the hollow shape of the hollow chamber profile 2 lead, while the shaft portion 6 is mounted in a slightly offset in the hollow chamber profile 2 in the insertion direction X backwards, not shown in the figure, metallic reinforcing tube.

Auf der in Fig. 2 dargestellten oberen Seite des Schaftteiles 6, d.h. auf der Seite, die im Längsquerschnitt des Schaftteiles 6 unter einem stumpfen Winkel α (Fig. 3) von dessen Schrägfläche 4 aus hervorspringt (und gleichzeitig die kürzeste Längsseite aller vier Seiten des Eckverbinders darstellt), sind, wie Fig. 2 zeigt, zwei schräge, keilförmige Stützflächen 8, 9 angeordnet, wobei die Keilfläche 8 nahe an der Schrägfläche 4 und die Keilfläche 9 am einschiebeseitigen Endbereich des Eckverbinders 1 angeordnet ist. Auf der Keilfläche 9 sitzt etwa in deren Mitte (in Längsrichtung gesehen) ein Spreizelement 10, das von der Keilfläche 9 vorsteht. Wie am besten aus Figur 5 ersichtlich ist, weist das Spreizelement 10 zwei den Seitenrändem der Keilfläche 9 zugewandte Außenflächen 11, 12 auf (Fig. 5), die so ausgebildet sind, daß sie einerseits senkrecht zur Längsmittelebene M (vgl. Fig. 3) liegen und andererseits in Einschieberichtung X konvergieren. Die Keilflächen 8, 9 und die Außenflächen 11, 12 des Spreizelements 10 sind jeweils mit einer senkrecht zur Einschieberichtung X angebrachten Riffelung 13, 14 versehen.On the upper side of the shank part 6 shown in Fig. 2, i. on the side which protrudes in the longitudinal cross-section of the shaft portion 6 at an obtuse angle α (Fig. 3) from its inclined surface 4 (and at the same time represents the shortest longitudinal side of all four sides of the corner connector), as Fig. 2 shows, two oblique , wedge-shaped support surfaces 8, 9 are arranged, wherein the wedge surface 8 is disposed close to the inclined surface 4 and the wedge surface 9 at the insertion-side end portion of the corner connector 1. On the wedge surface 9 sits approximately in the middle (seen in the longitudinal direction), an expansion element 10 which protrudes from the wedge surface 9. 5, the expansion element 10 has two outer surfaces 11, 12 facing the side edges of the wedge surface 9 (FIG. 5), which are designed such that they are perpendicular to the longitudinal center plane M (see FIG. lie and on the other hand converge in the insertion direction X. The wedge surfaces 8, 9 and the outer surfaces 11, 12 of the expansion element 10 are each provided with a perpendicular to the insertion direction X corrugations 13, 14 are provided.

Aus der Längsmittelschnitt-Darstellung der Fig. 3 durch das Schaftteil 6 (entlang der Schnittebene A-A in Fig. 2) ist noch einmal die relative Anordnung der schrägen Stützflächen 8 und 9 und des Spreizelements 10 sowie der Riffelungen 13, 14 und die Anordnung der Erhebungen 4', deren obere Endflächen die Schrägfläche 4 bilden, gut erkennbar. Aus der perspektivischen Schnittdarstellung der Fig. 3 ist ferner entnehmbar, daß der Eckverbinder 1 als ein einstückig gefertigtes Kunststoffteil ausgebildet ist, das seinerseits im Inneren einen Hohlquerschnitt aufweist, der zum einschubseitigen Ende des Schaftteiles 6 hin offen ist.From the longitudinal central section of Fig. 3 by the shaft portion 6 (along the sectional plane AA in Fig. 2) is again the relative arrangement of the inclined support surfaces 8 and 9 and the expansion element 10 and the corrugations 13, 14 and the arrangement of the surveys 4 ', whose upper end surfaces form the inclined surface 4, clearly visible. From the perspective sectional view of Fig. 3 is further removed that the corner connector 1 as an integrally manufactured plastic part is formed, which in turn has a hollow cross-section in the interior, which is open to the insertion-side end of the shaft part 6.

Der Schiebekörper 5, der dem Schaftteil 6 zugeordnet ist, besteht seinerseits, wie die Fig. 2, die Längsschnittdarstellung in Fig. 4 und die Draufsicht in Fig. 5 zeigen, aus einem länglichen Formkörper, der einen Verkeilungsabschnitt 15 und einen Endabschnitt 18 umfaßt, der über die Gehrungsfläche (Schrägfläche 4) des Schaftteiles 6 vorsteht. Der Schiebekörper 5 ist symmetrisch zu seiner Längsmittelachse ausgebildet und sein Verkeilungsäbschnitt 15 läuft an seinem in Einschieberichtung X vorderen Endabschnitt in zwei elastisch auseinanderspreizbare Schenkel 16, 17 aus, die sich in der in Fig. 5 gezeigten Ausgangsstellung des Schiebekörpers 5 in Einschieberichtung X erstrecken. Die beiden Schenkel 16, 17 sind in der Ausgangsstellung des Schiebekörpers 5 auf dem Schaftteil 6 entspannt und nicht auseinandergespreizt. Wie am besten aus Fig. 5 ersichtlich ist, weisen die Schenkel 16, 17 an ihrem in Einschieberichtung X vorderen Endabschnitt einander zugewandte Innenflächen 19 auf, die in Einschieberichtung X gegeneinander konvergieren. Die Innenflächen 19 sind bevorzugt so ausgebildet, daß sie senkrecht zur Längsmittelebene M (Fig. 3) stehen und in der (in Fig. 5 gezeigten) Ausgangsstellung an den entsprechenden zugeordneten Außenflächen 11, 12 des Spreizelementes 10 anliegen. Ferner sind die Innenflächen 19 der Schenkel 16, 17 jeweils mit einer senkrecht zur Einschieberichtung X angebrachten Riffelung 20 versehen (in den Fig. 2 und 4 ist jeweils nur die Riffelung 20 an der Innenfläche 19 des Schenkels 16 gezeigt).The sliding body 5, which is associated with the shaft part 6, in turn, as shown in FIG. 2, the longitudinal sectional view in Fig. 4 and the plan view in Fig. 5 show, of an elongate shaped body comprising a Verkeilungsabschnitt 15 and an end portion 18, which projects beyond the miter surface (inclined surface 4) of the shaft part 6. The sliding body 5 is formed symmetrically to its longitudinal central axis and its Verkeilungsäbschnitt 15 runs at its front in insertion direction X end portion in two elastically auseinanderspreizbare legs 16, 17 which extend in the insertion position shown in Fig. 5 of the sliding body 5 in the insertion direction X. The two legs 16, 17 are relaxed in the starting position of the sliding body 5 on the shaft part 6 and not spread apart. As best seen in Fig. 5 it can be seen, the legs 16, 17 at their front in the insertion direction X end portion facing each other inner surfaces 19 which converge in the insertion direction X against each other. The inner surfaces 19 are preferably formed so that they are perpendicular to the longitudinal center plane M (Fig. 3) and in the (shown in Fig. 5) starting position abut the corresponding associated outer surfaces 11, 12 of the expansion element 10. Further, the inner surfaces 19 of the legs 16, 17 are each provided with a perpendicular to the insertion direction X attached corrugations 20 (in Figs. 2 and 4 only the corrugation 20 is shown on the inner surface 19 of the leg 16).

Die Innenflächen 19 können jedoch auch zur Längsmittelebene M (Fig. 3) unter einem anderen Winkel als 90° geneigt sein, beispielsweise so, daß sie mit zunehmendem Abstand von der Längsmittelebene M aufeinander zulaufen. In diesem Fall sind natürlich die Außenflächen 11, 12 des Spreizelementes 10 mit einer entsprechend angepaßten Neigung bezüglich der Längsmittelebene M versehen, so daß auch in diesem Fall die Innenflächen 19 der Schenkel 16, 17 an den entsprechend zugeordneten Innenflächen 11, 12 des Spreizelementes 10 anliegen. Hier werden beim Herausziehen des Schiebekörpers 5 aus dem Hohlkammerprofil 2, d. h. bei einem Verschieben des Schiebekörpers 5 relativ zum Schaftteil 6 entgegen der Einschieberichtung X, die Schenkel 16, 17 nicht nur quer zur Einschieberichtung elastisch auseinandergespreizt, sondern auch noch nach oben in Bezug zur Längsmittelebene M verschoben, so daß beim Verkeilen im Hohlkammerprofil 2 (durch Herausziehen des Schiebekörpers 5 entgegen der Richtung X) ein Verkeilungseffekt gleichzeitig in zwei zueinander senkrechten Verkeilungsrichtungen, nämlich gegenüber allen Seiten desselben, erreicht wird.However, the inner surfaces 19 may also be inclined to the longitudinal center plane M (Figure 3) at an angle other than 90 °, for example, such that they converge towards one another with increasing distance from the longitudinal center plane M. In this case, of course, the outer surfaces 11, 12 of the expansion element 10 are provided with a correspondingly adapted inclination with respect to the longitudinal center plane M, so that in this case the inner surfaces 19 of the legs 16, 17 abut against the correspondingly associated inner surfaces 11, 12 of the expansion element 10 , Here, when pulling out the sliding body 5 from the hollow chamber profile 2, d. H. with a displacement of the sliding body 5 relative to the shaft part 6 against the insertion direction X, the legs 16, 17 not only spread apart transversely to the insertion elastic, but also shifted upwards with respect to the longitudinal center plane M, so that when wedging in the hollow chamber profile 2 (by pulling of the slide body 5 against the direction X) a wedging effect is achieved simultaneously in two mutually perpendicular wedging directions, namely opposite to all sides thereof.

Der Schiebekörper 5 weist ferner zwei Anschlagflächen 23, 24 aus, von denen jeweils eine mit einer der Innenflächen 19 der Schenkel 16, 17 verbunden ist und die sich senkrecht zur Einschieberichtung X und senkrecht zur Längsmittelebene M (Fig. 3) erstrecken. Diese Anschlagflächen 23, 24 des Schiebekörpers 5 liegen bei der in Fig. 5 gezeigten Ausgangsstellung gegen eine an dem in Einschieberichtung X des Eckverbinders 1 hinteren Ende des Schaftteiles 6 ausgebildete Anschlagfläche 25 des Spreizelementes 10 an. Damit wird sichergestellt, daß der Schiebekörper 5 in Einschieberichtung X nicht weiter als bis zu der in Fig. 5 gezeigten Ausgangsstellung relativ zum Schaftteil 6 bewegt werden kann und somit immer ein Teil des Endabschnittes 18 des Schiebekörpers 5 über die Schrägfläche 4 des Schaftteiles 6 übersteht, wenn der Eckverbinder in das Hohlkammerprofil 2 eingeführt ist.The sliding body 5 also has two abutment surfaces 23, 24, one of which is connected to one of the inner surfaces 19 of the legs 16, 17 and which extend perpendicular to the insertion direction X and perpendicular to the longitudinal center plane M (FIG. 3). These Stop surfaces 23, 24 of the sliding body 5 are in the initial position shown in Fig. 5 against a trained in the insertion direction X of the corner connector 1 rear end of the shaft part 6 stop surface 25 of the expander 10 at. This ensures that the sliding body 5 in the insertion direction X can not be moved to the starting position shown in FIG. 5 relative to the shaft part 6 and thus always a part of the end portion 18 of the sliding body 5 projects beyond the inclined surface 4 of the shaft part 6, when the corner connector is inserted into the hollow chamber profile 2.

Auf der Unterseite des Schiebekörpers 5 sind an seiner dem Schaftteil 6 bei der Montage zugewandten Unterseite im Bereich des Verkeilungsabschnittes 15 zwei Keilflächen 21, 22 angebracht, deren Schrägen und deren Abstand voneinander genau den Schrägen der schrägen Stützflächen 8 und 9 am Schaftteil 6 sowie deren Zwischenabstand entsprechen. Die Keilfläche 22, die an dem in Einschieberichtung X vorderen Endbereich des Schiebekörpers 5 angebracht ist, setzt sich aus zwei voneinander getrennten Abschnitten zusammen, die an der dem Schaftteil 6 bei der Montage zugewandten Unterseite der beiden Schenkel 16, 17 ausgebildet sind.On the underside of the sliding body 5, two wedge surfaces 21, 22 are mounted on the shaft part 6 facing the underside in the region of the wedging portion 15 whose inclinations and their distance from each other exactly the slopes of the inclined support surfaces 8 and 9 on the shaft part 6 and their spacing correspond. The wedge surface 22, which is attached to the front in the insertion direction X end portion of the sliding body 5, is composed of two separate sections, which are formed on the shaft part 6 during assembly facing underside of the two legs 16, 17.

Die Breite des Verkeilungsabschnittes 15 entspricht der Breite der schrägen Stützfläche 8, d. h. dem Abstand zwischen den nach oben hochgezogenen Abschnitten 26 der Seitenwände des Schaftteiles 4, die sich in Längsrichtung des Schaftteiles 6 von der Schrägfläche 4 bis zum einschiebeseitigen Ende der Stützfläche 8 erstrecken, so daß die Stützfläche 8 etwas vertieft angeordnet ist. Dadurch wird, wenn der Schiebekörper 5 auf das Schaftteil 6 aufgelegt ist, vgl. z. B. die Ausgangsstellung in Fig. 5, eine seitliche Führung des Schiebekörpers 5 erreicht, wenn dieser relativ zum Schaftteil 6 in Längsrichtung des Schaftteiles 6 verschoben wird. Ferner sind die Schenkel 16, 17 gegenüber dem restlichen Verkeilungsabschnitt 15 seitlich nach außen an ihren in Einschieberichtung X vorderen Endabschnitten derart verdickt, daß die voneinander weg gewandten Außenseiten 27 dieser Verdickungen in der in Fig. 5 gezeigten Ausgangsstellung zueinander einen Abstand aufweisen, welcher der Breite des Schaftteiles 6 entspricht. Damit stehen die Verdickungen der Schenkel 16, 17 in der Ausgangsstellung (Fig. 5) seitlich nicht über das Schaftteil 6 hinaus, wodurch dieses mit dem in der Ausgangsstellung aufgelegten Schiebekörper 5 leicht in das Hohlkammerprofil 2 eingeführt werden kann.The width of the wedging portion 15 corresponds to the width of the inclined support surface 8, d. H. the distance between the upwardly raised portions 26 of the side walls of the shank portion 4 extending in the longitudinal direction of the shank portion 6 from the inclined surface 4 to the insertion end of the support surface 8, so that the support surface 8 is arranged slightly recessed. As a result, when the sliding body 5 is placed on the shaft part 6, cf. z. B. the starting position in Fig. 5, a lateral guidance of the sliding body 5 is achieved when it is displaced relative to the shaft part 6 in the longitudinal direction of the shaft part 6. Further, the legs 16, 17 opposite the remaining Verkeilungsabschnitt 15 laterally outwardly at their front end in insertion direction X thickened such that the mutually weggewandten outer sides 27 of these thickenings in the starting position shown in Fig. 5 have a distance to each other, which the width of the shaft part 6 corresponds. Thus, the thickenings of the legs 16, 17 in the starting position (FIG. 5) are not laterally beyond the shank part 6, as a result of which this can be easily introduced into the hollow chamber profile 2 with the sliding body 5 placed in the starting position.

Der Endabschnitt 18 des Schiebekörpers 5 ist in Form eines länglichen Steges ausgebildet und an seinem freien Ende mit einem beidseits überstehenden, T-förmigen Endstück 28 versehen, das, in Längsrichtung des Schiebekörpers 5 gesehen gegenüber der Breite des Endabschnittes 18 am Schiebekörper 5 eine seitliche Verdickung ausbildet.The end portion 18 of the sliding body 5 is formed in the form of an elongated web and provided at its free end with a projecting T-shaped end piece 28, which, seen in the longitudinal direction of the sliding body 5 relative to the width of the end portion 18 on the sliding body 5, a lateral thickening formed.

Die Neigungen der Keilflächen 21 und 22 am Schiebekörper 5 und die der zugeordneten schrägen Stützflächen 8 und 9 sind alle gleich groß ausgebildet. Dabei ist die Ausrichtung der schrägen Stützflächen 8 und 9 auf dem Eckverbinder 1 ebenso wie die der zugeordneten Keilflächen 21 und 22 am Schiebekörper 5 so vorgenommen, daß bei Aufliegen der Keilfläche 21 auf der schrägen Stützfläche 8 und der Keilfläche 22 auf der schrägen Stützfläche 9 (z. B. in der in Fig. 5 gezeigten Ausgangsstellung) eine Bewegung des Schiebekörpers 5 relativ zum Schaftteil 6 entgegen der Einschieberichtung X des Eckverbinders 1 durch Keilwirkung zu einem Anheben des Schiebekörpers 5 relativ vom Schaftteil 6 wegführt. Auch sind die Innenflächen 19 der Schenkel 16, 17 und die Außenflächen 11, 12 des Spreizelementes 10 so angeordnet, daß bei einer solchen Bewegung des Schiebekörpers 5 entgegen der Einschieberichtung X auch die Schenkel 16, 17 durch ihre Relativbewegung zum Spreizelement 10 elastisch auseinander gespreizt werden, und zwar um so weiter, je größer die auftretende Relativverschiebung ist.The inclinations of the wedge surfaces 21 and 22 on the sliding body 5 and the associated inclined support surfaces 8 and 9 are all the same size. The alignment of the oblique support surfaces 8 and 9 on the corner connector 1 as well as the associated wedge surfaces 21 and 22 made on the sliding body 5 so that when resting the wedge surface 21 on the inclined support surface 8 and the wedge surface 22 on the inclined support surface 9 (z the starting position shown in Fig. 5) a movement of the sliding body 5 relative to the shaft part 6 against the insertion direction X of the corner connector 1 by wedge effect to a lifting of the sliding body 5 relatively away from the shaft part 6. Also, the inner surfaces 19 of the legs 16, 17 and the outer surfaces 11, 12 of the expansion element 10 are arranged so that in such a movement of the sliding body 5 against the insertion direction X and the legs 16, 17 are spread apart elastically by their relative movement to the expansion element 10 , and the further, the larger the occurring relative displacement.

Zur Montage wird der Eckverbinder 1 zunächst mit dem auf seiner Oberseite aufliegenden Schiebekörper 5 (vgl. Ausgangsstellung gemäß Fig. 5) in das Hohlkammerprofil 2 formschlüssig eingeschoben und zwar soweit, bis die Schrägfläche 4 des Eckverbinders 1 gegenüber der Gehrungsfläche 3 des Hohlkammerprofiles 2 etwas in Einschieberichtung X versetzt ist. Der Schiebekörper 5 ragt mit seinem Endabschnitt 18 und dessen vorderem Quersteg 28 über die Gehrungsfläche 3 des Hohlkammerprofiles 2 hinaus und zwar soweit, daß er mit einem Zugwerkzeug, wie dies beispielsweise in der DE-PS 44 29 709 beschrieben ist, erfaßt und nach außen gezogen werden kann. Bei der in Fig. 5 gezeigten Montage-Ausgangsstellung (noch vor dem Fixieren des Eckverbinders 1 in dem Hohlkammerprofil 2) liegen die Flächenpaare 8/21, 9/22, 11/19 und 12/19 noch locker, d. h. mit einem kleinen Spiel, aufeinander. Z. B. mit dem in der DE-PS 44 29 709 beschriebenen Zugwerkzeug wird sodann einerseits der Schiebekörper 5 entgegen der Einschieberichtung X gezogen und andererseits die bei einer solchen aus dem Hohlkammerprofil 2 herauslaufenden Verschiebebewegung des Schiebekörpers 5 ebenfalls ausgelöste Bewegung des Schaftteiles 6 in Richtung aus dem Hohlkammerprofil 2 heraus beendet, sobald die Schrägfläche 4 des Eckverbinders 1 mit der Gehrungsfläche 3 des Hohlkammerprofiles 2 exakt ausgerichtet ist. Durch die Relativbewegung des Schiebekörpers 5 zum Schaftteil 6 tritt auch eine Relativbewegung innerhalb der Flächenpaarungen 8/21, 9/22, 11/19 und 12/19 mit der Folge ein, daß der Schiebekörper 5 einerseits an den schrägen Stützflächen 8 und 9 am Schaftteil 6 über seine eigenen Keilflächen 21 und 22 nach oben wandert und dadurch gegen das metallische Einlageprofil innerhalb des Hohlkammerprofiles 2 zur verkeilenden Anlage kommt, und daß andererseits die beiden Schenkel 16, 17 durch die Bewegung der Innenflächen 19 entlang der Außenflächen 11 und 12 des Spreizelements 10 elastisch auseinandergespreizt werden, wodurch sie an den seitlichen Wänden des metallischen Einlageprofiles innerhalb des Hohlkammerprofiles 2 zur verkeilenden Anlage kommen. Durch die Riffelungen 13, 14, 20 an den Stützflächen 8, 9 der Keilflächen 21, 22, den Außenflächen 11, 12 und den Innenflächen 19 wird überdies (was auch über eine geeignete Werkstoffpaarung zwischen den Werkstoffen des Schiebekörpers 5 und des Schaftteiles 6 erzielt werden könnte) rasch eine Selbsthemmung bei Verkeilung erreicht.To install the corner connector 1 is first inserted positively with the resting on its upper slide body 5 (see., Starting position shown in FIG.) 5 in the hollow section 2 until that the inclined surface 4 of the corner connector 1 against the miter 3 of the hollow section 2 something in Insertion direction X is offset. The sliding body 5 protrudes with its end portion 18 and the front transverse web 28 on the miter surface 3 of the hollow chamber profile 2 to the extent that it with a pulling tool, as described for example in DE-PS 44 29 709, detected and pulled outwards can be. In the assembly starting position shown in Fig. 5 (even before fixing the corner connector 1 in the hollow chamber profile 2) are the pairs of surfaces 8/21, 9/22, 11/19 and 12/19 still loose, ie with a small game, each other. For example, with the pull tool described in DE-PS 44 29 709 then the sliding body 5 is pulled against the insertion direction X on the one hand and on the other hand, the sliding out in such a movement from the hollow section 2 sliding movement of the sliding body 5 also triggered movement of the shaft portion 6 in the direction of the hollow chamber profile 2 out finished as soon as the inclined surface 4 of the corner connector 1 is exactly aligned with the miter surface 3 of the hollow chamber profile 2. Due to the relative movement of the sliding body 5 to the shaft part 6 also enters a relative movement within the surface pairings 8/21, 9/22, 11/19 and 12/19 with the result that the sliding body 5 on the one hand on the inclined support surfaces 8 and 9 on the shaft part 6 over its own wedge surfaces 21 and 22 moves upward and thereby comes against the metal insert profile within the hollow chamber profile 2 for wedging abutment, and that on the other hand, the two legs 16, 17 by the movement of the inner surfaces 19 along the outer surfaces 11 and 12 of the expansion element 10th be spread apart elastically, whereby they come to the lateral walls of the metallic insert profile within the hollow chamber profile 2 to the wedging system. By the corrugations 13, 14, 20 on the support surfaces 8, 9 of the wedge surfaces 21, 22, the outer surfaces 11, 12 and the inner surfaces 19 is also (which also has a suitable Material combination between the materials of the sliding body 5 and the shaft part 6 could be achieved) quickly achieved a self-locking wedging.

Wenn der Eckverbinder 1 im Hohlkammerprofil 2 verkeilt wurde, wird das Werkzeug abgenommen und anschließend der noch über die Schrägflächen 4 nach vorne überstehende Restabschnitt des Endbereiches 18 des Schiebekörpers 5 durch einen kurzen Hammerschlag von oben abgebrochen. Durch geeignete Anordnung einer (in den Figuren allerdings nicht dargestellten) Sollbruchstelle am Endabschnitt 18 des Schiebekörpers 5 kann ein besonders leichtes Entfernen dieses überstehenden Restabschnittes nach Beendigung der Montage erreicht werden, sogar ein Abbrechen von Hand wäre dabei möglich. Bevorzugt wird zum Entfernen des überstehenden Endabschnittes jedoch das Zugwerkzeug selbst eingesetzt, indem der Endabschnitt 18 zum Beispiel durch Verdrehen des Zugwerkzeuges, das noch in Eingriff mit ihm steht, abgeschert wird.When the corner connector 1 has been wedged in the hollow chamber profile 2, the tool is removed and then the rest of the end portion 18 of the sliding body 5 projecting beyond the inclined surfaces 4 forwards aborted by a short hammer blow from above. By suitable arrangement of a (not shown in the figures) predetermined breaking point at the end portion 18 of the sliding body 5, a particularly easy removal of this protruding residual portion after completion of the assembly can be achieved, even a manual abort would be possible. Preferably, however, the pulling tool itself is used to remove the projecting end portion by the end portion 18 is sheared off, for example by turning the pulling tool, which is still in engagement with him.

Zwei mit solchermaßen in ihnen fixierten Eckverbindern 1 versehene Hohlkammerprofile 2 können sodann durch Verschweißen oder Verkleben oder in einer sonst geeigneten Weise längs der Schrägflächen 3 und 4 aneinander befestigt werden.Two hollow chamber profiles 2 provided with corner joints 1 thus fixed in them can then be fastened to one another by welding or gluing or in an otherwise suitable manner along the inclined surfaces 3 and 4.

Obwohl bei dem oben beschriebenen Eckverbinder 1 das Schaftteil 6 die schrägen Stützflächen 8, 9 und der Schiebekörper 5 die entsprechend zugeordneten Keilflächen 21, 22 aufweist, kann der Eckverbinder 1 auch so ausgebildet werden, daß die Stützfläche des Schaftteiles 6, auf der der Schiebekörper 5 aufliegt, nicht schräg, sondern parallel zur Längsmittelebene M (Fig. 3) ausgerichtet ist. Bei dieser Ausführungsform wird der Schiebekörper 5 bei einem Verschieben relativ zum Schaftteil 6 nicht angehoben. Die Schenkel 16, 17 werden jedoch bei dieser Verschiebung immer noch elastisch auseinandergespreizt, so daß sie dadurch zu einer verkeilenden Anlage an die seitlichen Wände des metallischen Einlageprofiles innerhalb des Hohlkammerprofiles 2 kommen. Bei dieser Ausführungsform können die Innenflächen 19 der Schenkel 16, 17 und die Außenflächen 11, 12 des Spreizelements 10 natürlich auch so gegenüber der Längsmittelebene M (Fig. 3) geneigt sein, so daß beim Verschieben zusätzlich zu dem Spreizen der Schenkel 16, 17 auch noch eine Bewegung der Schenkel 16, 17 relativ vom Schaftteil 6 weg bewirkt wird, wodurch ein Verkeilen in dem metallischen Einlageprofil innerhalb des Hohlkammerprofils 2 gegenüber allen dessen Seitenrändern erreicht wird.Although in the above-described corner connector 1, the shaft part 6, the inclined support surfaces 8, 9 and the sliding body 5, the correspondingly associated wedge surfaces 21, 22, the corner connector 1 can also be formed so that the support surface of the shaft part 6, on which the sliding body. 5 rests, not obliquely, but parallel to the longitudinal center plane M (Fig. 3) is aligned. In this embodiment, the sliding body 5 is not raised during a displacement relative to the shaft part 6. However, the legs 16, 17 are still spread apart elastically during this shift, so that they thereby come to a wedging contact with the lateral walls of the metallic insert profile within the hollow chamber profile 2. In this embodiment, the inner surfaces 19 of the legs 16, 17 and the outer surfaces 11, 12 of the expansion element 10 may of course also be inclined relative to the longitudinal center plane M (Fig. 3), so that in addition to the spreading of the legs 16, 17 also when moving still a movement of the legs 16, 17 is effected relative to the shaft part 6 away, whereby a wedging in the metallic insert profile within the hollow chamber profile 2 is achieved with respect to all its side edges.

Claims (16)

  1. A corner connector for connecting two mitre-cut, hollow-chamber profiles of windows, doors, etc, composed preferably of weldable plastic, with a shaft part (6) and a slide body (5), which can be inserted together in the longitudinal direction of the shaft part (6) into an associated hollow-chamber profile (2) from its mitre-cut sides, whereby the slide body (5) can be moved in the longitudinal direction of the shaft part (6) with respect to it and viewed in the insertion direction of the shaft part (6) into the associated hollow chamber profile (20) and has an end section for application of a sliding force, characterised in that the slide body (5) ends at its end section in the direction of insertion (X) in one or two elastic limbs (16, 17) that can be spread apart sideways, and the shaft part (6) has a spreading element (10) for the spreading the limb or limbs (16, 17) apart, by means of which this/these limb(s) (16, 17) can be spread apart sideways when the slide body (5) is moved with respect to the shaft part (6) from a starting position of the slide body (5), to wedge the corner connector in the hollow-chamber profile (2), whereby the path of spreading of each limb increases as the movement path of the slide body (5) increases.
  2. A corner connector according to claim 1, characterised in that the limb(s) (16, 17) can be spread apart in a direction counter to the insertion direction into the hollow chamber profile (20) by moving the slide body (5) with respect to the shaft part (6).
  3. A corner connector according to claim 2, characterised in that the shaft part (6) has a stop that prevents the slide body (5) from moving with respect to the shaft part (6) out of the starting position of the slide body (5) in the insertion direction (X).
  4. A corner connector according to one of claims 1 through 3, characterised in that the limb(s) (16, 17) of the slide body (5) extend(s) in the direction of insertion (X) and can be spread transverse to the direction of insertion (X).
  5. A corner connector according to one of claims 1 through 4, characterised in that each limb (16, 17) is not spread in the starting position.
  6. A corner connector according to one of claims 2 through 5, characterised in that the slide body (5) is formed symmetrically along its longitudinal centre line.
  7. A corner connector according to one of claims 2 through 5, with two limbs capable of being spread apart, characterised in that the two limbs (16, 17) have inner surfaces (19) facing each other, which, in the starting position of the slide body (5), converge in the direction of insertion (X).
  8. A corner connector according to claim 7, characterised in that on the shaft part (6) two outer surfaces (11, 12) are formed that are associated with the inner surfaces (19) of the limbs (16, 17), which outer surfaces converge in the direction of insertion (X).
  9. A corner connector according to claim 8, characterised in that the pairing of inner surfaces (19) of each limb (16, 17) and correspondingly assigned outer surfaces (11, 12) of the shaft part (6) is built to be self-locking against forces perpendicular to the sliding motion of the slide body (5).
  10. A corner connector according to claim 9, characterised in that at least one inner surface (19) of the slide body (5) and/or at least one associated outer surface (11, 12) of the spreader part (10) is/are provided with an applied striation (13, 14) transverse to the direction of the relative movement between the slide body (5) and the shaft part (6).
  11. A corner connector according to one of claims 1 through 10, characterised in that the slide body (5) with at least one wedge surface (21, 22) on it can be moved with respect to the shaft part (6) on at least one correspondingly associated angled support surface (8, 9) formed on a side surface of the shaft part (6), whereby, by means of the wedge surfaces (21, 22) and the angled support surfaces (8, 9), its distance from the longitudinal centre plane (M) of the shaft part (6) increases during a movement of the slide body (5).
  12. A corner connector according to claim 11, characterised in that the wedge surface (21, 22) is applied to each limb (16, 17) of the slide body (5) on its side facing toward the shaft part (6) and the spreading element (10) is applied on the angled support surface (9) of the shaft part (6) and protruding from it.
  13. A corner connector according to claim 11 or 12, characterised in that two wedge surfaces (21, 22) are provided on the slide body (5), and associated angled support surfaces (8, 9) are provided on the shaft part (6).
  14. A corner connector according to claim 13, characterised in that an angled support surface (8) is provided on the rear end area, in the direction of insertion (X) of the shaft part (6) and the other angled support surface (9) is provided on the front end area, in the direction of its insertion (X).
  15. A corner connector according to one of claims 11 through 14, characterised in that the pairing of angled support surface (8, 9) and wedge surface (21, 22) is built to be self-locking against forces perpendicular to the sliding motion of the slide body (5).
  16. A corner connector according to claim 15, characterised in that at least one wedge surface (21, 22) of the slide body (5) and the associated angled support surface (8, 9) is provided on the shaft part (6) to form a self-lock, with a striation (8, 9) applied transverse to the direction of the relative movement between the slide body (5) and the shaft part (6).
EP01118645A 2000-08-11 2001-08-02 Corner joint Expired - Lifetime EP1179652B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10039403 2000-08-11
DE10039403A DE10039403C1 (en) 2000-08-11 2000-08-11 Corner connector for hollow plastics door or window profiles has shaft part and relatively displaced sliding body used for expansion of anchoring arms

Publications (3)

Publication Number Publication Date
EP1179652A2 EP1179652A2 (en) 2002-02-13
EP1179652A3 EP1179652A3 (en) 2002-10-16
EP1179652B1 true EP1179652B1 (en) 2007-01-24

Family

ID=7652197

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01118645A Expired - Lifetime EP1179652B1 (en) 2000-08-11 2001-08-02 Corner joint

Country Status (3)

Country Link
EP (1) EP1179652B1 (en)
AT (1) ATE352699T1 (en)
DE (2) DE10039403C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2963227A1 (en) 2014-06-10 2016-01-06 SC ELKA Prodcom SRL Stiffening joint with expandable screw-nut mechanism

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10210309B4 (en) * 2002-03-08 2004-01-29 Phi Reichel Gmbh Corner connector
DE102007030618B3 (en) * 2007-07-02 2009-03-05 Hans Dieter Grotefeld Corner connector for door and window frames
DE102023102127A1 (en) 2023-01-30 2024-08-01 PHI Technik für Fenster und Türen GmbH Corner connector with expansion element
DE202024101337U1 (en) 2024-03-15 2024-04-15 PHI Technik für Fenster und Türen GmbH Corner connectors

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
DE1500844A1 (en) * 1966-09-09 1969-08-28 Roger Mores Connection arrangement of tubular profile parts
DE1930039C3 (en) * 1969-06-13 1975-01-30 Heinz Schuermann & Co, 4800 Bielefeld Multi-part corner connector for profiles, pipes or the like
DE2555702A1 (en) * 1975-12-11 1977-06-16 Eruocom Etablishment Window or door frame - is assembled from hollow units with corner connecting angle pieces slotted in one or both arms
DE3712478C1 (en) * 1987-04-13 1988-11-03 Huels Troisdorf Corner connector for connecting two miter-cut hollow chamber profiles
DE8910401U1 (en) * 1989-08-31 1989-10-26 Grotefeld, Hans Dieter, 4970 Bad Oeynhausen Corner connectors for door or window frames
DE9113235U1 (en) * 1990-11-26 1991-12-05 PHI Reichel GmbH, 8534 Wilhermsdorf Corner connectors
DE4215661C1 (en) * 1992-05-13 1993-07-01 Grotefeld, Monika, 4970 Bad Oeynhausen, De Corner connector for door or window frame - has welding surface running on mitring and shaft evolving from welding surface and matching inner cross=section of hollow profiles to be joined
DE9401256U1 (en) * 1994-01-26 1994-03-10 Grotefeld, Hans Dieter, 32549 Bad Oeynhausen Fighter connector
DE4429709C1 (en) * 1994-08-22 1995-12-07 Reichel Phi Gmbh Method of fixing plastics corner connectors of hollow chamber profiles of windows, doors etc.
DE19748613C1 (en) * 1997-11-04 1999-03-04 Deflex Dichtsysteme Gmbh Plastic connector, for e.g. doors
DE20013894U1 (en) * 2000-08-11 2000-12-14 PHI Reichel GmbH, 91459 Markt Erlbach Corner connector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2963227A1 (en) 2014-06-10 2016-01-06 SC ELKA Prodcom SRL Stiffening joint with expandable screw-nut mechanism

Also Published As

Publication number Publication date
DE10039403C1 (en) 2001-12-13
DE50111935D1 (en) 2007-03-15
EP1179652A3 (en) 2002-10-16
EP1179652A2 (en) 2002-02-13
ATE352699T1 (en) 2007-02-15

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