EP0695849B1 - Corner joining device for frame members of windows, doors or the like - Google Patents

Abstract

The connection piece has a T-shaped swivel bolt (16) which forms the pivoting axis (15) for an angle shank (12). The bolt engages another angle shank (13) in bayonet-fashion, using a crossbar (17) in a slot (18). The crossbar and the slot have the same alignment with respect to the angle shank. The bolt has a rectangular crossbar and the slot has a correspondingly rectangular shape, plus a round section to accommodate the round section of the bolt.

Description

The invention relates to a corner connector Bars of windows, doors or the like, with fixable in the bars Angle legs that are perpendicular in their apex are pivotally connected to each other to the angular plane.

Corner connectors are used to connect bars, that meet at an angle and mitred cut or butted. The order the spars are carried out regularly at a right angle. Accordingly, the known corner connectors are one-piece Angles with right-angled legs, which engage in cavities in the spars and in them are firmly anchored, e.g. by jamming. Special measures must be gripped if spars are not at right angles to be arranged to each other, but pointed or blunt Include angles, or if a round arch spar connects to one straight spar at an angle. Then corner connectors must be used are used that are specifically designed for the given angle constellation are adjusted, which means that the one-piece Corner connectors only for the special application can be used.

From DE-U-92 15 490 is a corner connector with the entry known features known. Around the angle leg in connect their apex to each other each angle leg has a closed eyelet and both eyes are connected with a threaded or tapered pin connected. Such a pen is an undesirable, because additional component and represents a non-detachable or Component that can only be removed with considerable effort. The known ones Angle legs are only for swivel angles of 90 ° and more suitable.

In contrast, the invention is based on the object a corner connector with the features mentioned above improve that it can be used for practically all corner angle combinations is to be used without special structural preparations at the corner connector.

This object is achieved in that on an angle leg a T-shaped axle bolt forming the swivel axis is present, the other angle leg with a Cross bar engages behind a slot like a bayonet, whereby the cross bar and the elongated hole in relation to those assigned to them Angle legs are each aligned the same.

It is important for the invention that the angle leg of the corner connector pivotally connected are. As a result, the angle legs can be different Angles to each other. The exact one Angle arrangement of the angle legs to each other does not need to be predetermined before installation in the spars. It results rather by the structurally provided pivotability the angle leg in connection with that angle, under which the spars are arranged relative to each other. Of is also important that the corner connector in two parts is. As a result, the two angle legs must be assembled become. The assembly must be done so that an unintentional Separate the angle legs from each other usual installation positions does not occur. So it's important that the mechanical connection of the two angle legs is designed so that it can be used in all usual installation positions the corner connector in the spars not from each other to be able to solve. In this sense, it works with a crossbar provided axle bolts of a first angle leg with a Elongated hole of a second angle leg so that it only a single arrangement of the two angle legs to each other in which they can be connected. Ultimately it is important that the crossbar and the elongated hole with respect to the angle legs assigned to each are aligned equally. As a result, it is possible form the corner connector so that its angle leg at relative rectangular arrangement always optimal connection strength have because of the crossbar of one angle leg and the elongated hole of the other angle leg perpendicular are arranged to each other so that the bayonet-like Reaching behind the crossbar to a maximum overlap area leads. However, the cross bar and the elongated hole become unequal aligned, so there is not only a reduced Connection strength of the angle leg at their right angle Arrangement, but also a different connection security depending on whether the angle leg an acute angle or an obtuse angle with each other lock in. It may then be that the release position in an angular range, which is for the use of the corner connector is required to connect spars. The alignment of crossbar and slot in relation to their angle legs is an optimization of which, if necessary can be deviated, for example if an optimal Connection security of the angle leg can be achieved if, for example, a pointed or a Include obtuse angle. Ultimately, the solubility the angle leg also advantageous in that, for example an angle leg with predetermined dimensions another angle leg of different predetermined dimensions can be combined. For example, the one angle leg be longer than the other angle leg. The one Angle leg can also have other cross-sectional dimensions, than the other angle leg.

A practical design of the corner connector lies before when the axle bolt is almost its round cross section has correspondingly wide, approximately rectangular crossbar, and that the elongated hole is accordingly rectangular and with a the round axle bolt with a circular cross-section is provided. The crossbar then has maximum width dimensions. On the other hand, it ensures that an angle leg stored relatively immovably on the other angle leg is.

It is advantageous to design the corner connector so that the cross bar and the elongated hole each in the longitudinal direction of the angle leg are aligned. At the same time with the optimal Connection strength of the angle leg is achieved that they can be made as narrow as possible, because the longitudinal extension of the crossbar and the elongated hole with the longitudinal direction of the angle leg coincides and this consequently not broadened across.

A very advantageous embodiment of the corner connector is that the two angle legs each on one An axle pin at the end of the leg and an elongated hole at the other end to have. As a result, the angle legs can be identical be trained. So it is not necessary to have several different to produce trained angle legs to build a single corner connector from it.

The corner connector is advantageous in this regard designed that the angle leg carries the axle bolt has plate-like first leg piece with which a second plate-like leg piece connected in one piece is arranged in parallel at the height of the axle bolt is. The plate-like thigh pieces overlap in the connection area and it is easily possible the thickness of the second plate-like leg piece at least in the area of its elongated hole so that the desired Connection with the axle bolt of the first plate-like Leg piece of another angle leg made can be. If the plate thickness of the second leg piece the distance of the crossbar from the neighboring one Plate surface of the first plate-like leg piece corresponds or the spar side plate surface of the second at least does not protrude plate-like thigh piece, than the axle pin, so determines the first plate-like Thigh piece with its axle bolt the total width or thickness of the corner connector in this area or entire corner connector, if its remaining training this is taken into account.

It is possible to design the corner connector so that the first leg piece of an angle leg in relation to the second leg piece is of different thickness. At the same Formation of both angle legs can then be achieved that the corner connector for such spars with the same cross section can be used corresponding to the transverse plane have differently dimensioned hollow chambers, in which the angle legs are inserted. It is also possible to combine angle legs with each other the thicknesses of the second leg pieces of the elbows each are different if this is exceptional through corresponding different cross-sectional dimensions of the two adjoining hollow chambers of the spars is.

To achieve that the corner connector in the connection area of the two angle legs with regard to its stability is improved, and also to achieve that the facility the angle leg on the inner wall of the hollow chamber of the spar is improved, the corner connector can be designed that in the connecting area of both legs pieces a support web is present, the outer surface with the outer surface of the Cross bar is aligned. In particular, it is achieved that both the outer surface of the crossbar as well as the outer surface of the The support bar can be clamped into a hollow chamber of a spar and thus for a secure seat of the corner connector or a reliable one Connection of the spar ends is provided.

Another advantageous embodiment of the corner connector is that the first leg piece in the connection area both thigh pieces, opposite the support web, one at an angle to the longitudinal direction of the angle leg has arranged end edge. The at an angle to the longitudinal direction end edge of the angle leg means one corresponding projection of a leg piece and thus a appropriate stiffening or massaging of the contra-angle in Connection area of his two leg pieces. At the same time but it is ensured that the at an angle to the longitudinal direction arranged end edge of the angle leg does not bother if one angle leg at an acute angle relative to the other Angle leg is arranged, the distance of the end edge designed for the swivel range of the two angle legs is that their pivoting from an acute-angled position is not obstructed in an obtuse-angled position.

Another advantageous embodiment of the corner connector is that the end portions of the longitudinal edges of the Angled legs are rounded approximately in an eighth circle. The eighth-circle rounding of the end sections of the longitudinal edges the angle leg enables the one described above End edge of a leg piece as close as possible to the common Arrange the swivel range of the angle legs. Furthermore the said rounding also ensures that the angle leg can be inserted more easily into the ends of the spars, that is, without the exact alignment that would be required if the longitudinal edges of the angled legs and the end transverse edge would collide at right angles, because then the educated right-angled corners hinder effortless insertion can.

The corner connector can also be designed such that the angle legs at their ends with their longitudinal edges parallel breakthroughs are provided. The breakthroughs save material and cause a suspension behavior of the adjacent longitudinal edge sections, so that the insertion the angled leg in the spars and the press fit of the Angle leg in the spars with appropriate shape the angle leg can be improved.

Fig.1

einen Querschnitt durch eine von zwei Holmen gebildete Ecke eines Fensterrahmens,

Fig.2

eine Aufsicht und darunter eine Seitenansicht eines Winkelschenkels eines Eckverbinders,

Fig.3

zwei gleich ausgebildete Winkelschenkel in Seitenansicht in ihrer Zusammenbaustellung in Strecklage, und

Fig.4a bis 4d

denselben Eckverbinder in vier unterschiedlichen Winkelstellungen seiner Winkelschenkel zueinander.

The invention is explained with reference to exemplary embodiments shown in the drawing. It shows:

Fig. 1

a cross section through a corner of a window frame formed by two bars,

Fig. 2

a top view and below a side view of an angle leg of a corner connector,

Fig. 3

two identically designed angle legs in side view in their assembled position in the extended position, and

Fig.4a to 4d

the same corner connector in four different angular positions of its angle legs to each other.

The frame spars 11 shown in Fig.1 are mitred cut and butt in the area of their mitred edges 29 at right angles to each other. The frame spars 11 are multi-chamber profiles, the cross section of which is inside each corner Has chamber 40 into which an angle leg 12 or 13 one Corner connector 10 is used. The width 41 of the angle leg 12.13 is the same size and corresponds approximately to the distance of the inner walls 42 of the hollow chamber 40. The width 41 is dimension slightly larger if the angle leg 12, 13 should be stuck in the hollow chamber 40. The corner bracket 12, 13 can also be glued in.

In Figure 2, an angle leg is shown that there are two leg pieces 21, 22. Both leg pieces 21, 22 are plate-like, the plate thickness being apparent is different. In the connection area of the two Leg pieces 21,22 is a transversely arranged on the leg piece 22 projecting support web 23 with an outer surface 24 provided. Furthermore, there is an end edge on the leg piece 21 26 available with a piece perpendicular to the leg 22 arranged end face 43 of the leg piece 21 is formed is.

The leg piece 21 has an axle pin 16 which is vertical to the angular plane of the corner connector or to the main plane of the leg piece 21 protrudes. The axle pin 16 is in the Cross-section round and on the longitudinal axis of the leg piece 21 arranged. At the outer, free end of the axle pin 16 is a crossbar 17 arranged in the longitudinal direction of the Angle leg extends. The outer surface of the axle pin 16 or the crossbar 17 is aligned with the outer surface 24 of the Support web 23. From the upper part of FIG. 2 it can be seen that the width of the crosspiece 17 is almost as large as that Axle pin diameter 16.

There is an elongated hole 18 in the leg piece 22, that is in the longitudinal direction of the leg piece or the angle leg extends. It is a little wider than the cross bar 17, so that such a crosspiece 17 is inserted through the slot 18 can be. In addition, the slot 18 is in his middle area with a radius 44 on each longitudinal edge of the Provide slot 18, which is slightly larger than the diameter of the axle pin 16 so that this in the slot 18 means of these radii 44 can be pivoted after the crossbar 17 was inserted through the slot 18.

The push-through position of the crosspiece 17 through the elongated hole 18 can be seen from FIG. So that the two angle legs 12,13 not easily separated again can be made by going across their side faces or pulled apart in the direction of the axle pin 16, they must be pivoted relative to each other, whereby they can be stiff, so that a selected pivot position is retained when handling. In this case, spread the crossbars 17 forming the elongated hole 18 edge areas of the thigh piece 21. The bayonet-like overlap this edge areas through the crossbar 17 is in the selected Maximum arrangement of cross bar 17 and slot 18, takes place with the largest coverage area if the Angle legs 12, 13 are arranged at right angles to one another. This relative angular position of the angle legs 12, 13 is in 1 and 4c shown. 4a and 4b show the Angle leg 12, 13 in the range of obtuse angles of 110 degrees and 140 angular degrees. It can be seen that the coverage between the crossbars 17 of the angle leg 12 and the underlying surfaces of the angle leg 13 with increasing Decreasing angle, but without thereby reducing the connection security is questioned. To the same extent the coverage decreases when the angle between the angle legs 12, 13 is reduced, e.g. according to Fig.4d. Here an acute angle of 70 degrees is shown. It is can be seen that the corner connector in all practical meaningful Angular positions of his angle legs are used can.

The representations of all figures show that the Longitudinal edges 27 of the angle legs 12, 13 at their ends neighboring end sections are rounded, approximately eighth-circle. This makes it easier to insert the ends the angle leg in the hollow chamber 40, as in Fig.1 without more can be seen. In addition, in Vertex area 14 of the angular corner connector 10 a corresponding partial circular coverage of the angle leg 12.13.

Are on both sides of the elongated hole 18 and the axle pin 16 in the plate surfaces of the plate-like leg pieces 21 Openings 28 are arranged, which serve to save material and that between the longitudinal edges 27 and the openings 28 make lying plate areas compliant, so that they in the Can compress 40 hollow chambers. That is especially for the free ends of the corner connector of importance in the case the clamp fastening of the corner connector mainly for the Clamp seat is responsible.

From the lower illustration in FIG. 2 it can be seen that the leg thickness of the first leg piece 21 is larger is than the leg thickness of the second leg piece 22. Im Comparison to the representation of Figure 3 shows that the Leg thickness of the leg piece 21 of Figure 2 is greater, than the leg thickness of the leg piece 21 of Figure 3. Consequently it can be seen that by different dimensioning the thickness of the first leg piece 21 different Corner connectors can be designed so that the corner connectors with different sized hollow chambers 40 of Holmen 11 can be used, so with different further dimensioning of the hollow chambers 40 vertically to the display level of Fig.1. In all cases it is achieved that the outer surfaces of the leg pieces 21 and the Outer surfaces 25 of the crossbars 17 together with the outer surfaces 24 of the support webs 23 also transversely to the plane of representation of the Fig.1 for a tight fit of the corner connector in the spars 11 can provide, for example, by the supernatant the support webs 23 and the transverse webs 17 created Free space 47 between the leg piece 22 and the adjacent one Wall of a spar 11 used to hold adhesive could be, if this is the support of the tight fit the angle leg 12, 13 in the spars 11 is beneficial. Between an angle leg 12, 13 and the associated frame spar 11 can also produce positive connections to prevent the corner connector or the angle leg 12, 13 slips out of the frame spar 11. 1 shows, for example, a recess at a single point 45 on a longitudinal edge 27 of the angled leg 13. This recess 45 serves to receive a notch 46 the inner wall 42 of the frame spar 11. The notching takes place after inserting the angle leg 13 into the frame spar 11 and can be designed so that there is a fixed positive Connection results in which the abutting surfaces or Miter edges 29 of the frame spars 11 pressed against each other be when there are 11 positive in both frame bars Connections. The notch expediently points 46 in the direction of the free end of the angle leg 13. Instead of the notch 46 can be used for a positive connection of the angle leg 13 with the frame spar 11 also one Beading or the like be used.

The end edge 26 is oblique to the longitudinal direction of the angle leg 12 or 13 arranged, in such a way that on the desired maximum acute-angled position of the angle leg 13 to the angle leg 12 is taken into account. In this preferred angular position, in Fig.4d 70 angular degrees, is the end face 43 of the end edge 26 or this itself parallel to the adjacent longitudinal edge 27 of the angle leg 13. In all other positions, the angle leg 13 with its longitudinal edges 27 or its end 19 or 20 anyway sufficient distance from the end edge 26, the rounding the end regions of the longitudinal edges 27 ensures that a non-contact pivoting of the angle legs 12, 13 in all Swivel positions is reached.

Claims (10)

1. Corner connector (10) on spars (11) of windows, doors or the like, having angular limbs (12, 13), which can be fixed in the spars (11) and which are mutually connected in their apex region (14) in such a manner as to pivot perpendicular to the angular plane, characterised in that on an angular limb (12) there is provided a T-shaped king pin (16) which forms the pivot axis (15) and engages in a bayonet-like manner behind the other angular limb (13) with a cross piece (17) through an elongated hole (18), wherein the cross-piece (17) and the elongated hole (18) are each aligned identically with respect to the angular limbs (12, 13) allocated thereto.
2. Corner connector according to claim 1, characterised in that the king pin (16) has an approximately rectangular cross piece (17) whose width corresponds virtually to its round cross-section, and that the elongated hole (18) is correspondingly rectangular and is provided with a circular cross-section which mounts the round king pin (16) in a rotatable manner.
3. Corner connector according to claim 1 or 2, characterised in that the cross piece (17) and the elongated hole (18) are each aligned in the longitudinal direction of the angular limb (12, 13).
4. Corner connector according to any one or several of the claims 1 to 3, characterised in that the two angular limbs (12, 13) each have a king pin (16) on a limb end and have an elongated hole (18) on the other end (20).
5. Corner connector according to any one or several of the claims 1 to 4, characterised in that the angular limb (12, 13) has a first, plate-like limb piece (21), which supports the king pin (16) and to which there is connected in a single piece a second, plate-like limb piece (22) which is off-set in parallel at the height of the king pin (16).
6. Corner connector according to claim 5, characterised in that the first limb piece (21) of an angular limb comprises a different thickness with respect to the second limb piece (22).
7. Corner connector according to one or both of claims 5 and 6, characterised in that in the connection region of the two limb pieces (21, 22) there is provided a support cross piece (23), whose outer surface (24) is aligned with the outer surface (25) of the cross-piece (17).
8. Corner connector according to claim 7, characterised in that the first limb piece (21) comprises, in the connection region of the two limb pieces (21, 22), lying opposite to the support cross piece (23), an end edge (26) which is disposed at an angle with respect to the longitudinal direction of the angular limb (12, 13).
9. Corner connector according to any one or several of the claims 1 to 8, characterised in that the end portions of the longitudinal edges (27) of the angular limbs (12, 13) are rounded in an approximately octantal manner and/or that the angular limbs (12, 13) are provided on their ends (19, 20) with openings (28) which lie in parallel with their longitudinal edges (27).
10. Corner connector according to any one or several of the claims 1 to 9, characterised in that the angular limbs (12, 13) are provided on their longitudinal edges (27) with recesses (45) for projections (46) of the frame spar (11).

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