SK16194A3 - Angle joint of a hollow windows ,doors or facades frame profiles cut down on bevel - Google Patents

Abstract

The corner connector (3, 29, 43) is provided, in the region of the corner line (12) or of the mitred joint (7), with grooves (13, 49) which extend from the flank surfaces (14, 39) running parallely to its central longitudinal surface (15, 30). The grooves (13, 49) is connected with the distribution duct (16). Provided between the flank surfaces (14, 39) and the inner delimitation surfaces of the hollow profiles (1, 2, 54) are spacer pieces, these determining the height of the gaps between the said parts for receiving adhesive-bonding composition. The gaps are filled with adhesive-bonding composition via the grooves (13, 49).

Description

CORNER CONNECTION OF HOLLOWED CUTTING FRAMES OF WINDOWS, DOORS OR FACADES

Technical field

BACKGROUND OF THE INVENTION The present invention relates to a corner connection of hollow sections of window, door or facade trimmed bevels with a corner connector extending through their arms into the inner chambers of the hollow sections, a force contact in alignment using formed, mounted or corner joints. are supported by fasteners screwed in the bearing, wherein adhesive is placed between the inner faces of the coupling.

BACKGROUND OF THE INVENTION

With the simultaneous assembly of the corner joints in metal structures, the adhesive components were mixed in open tanks and the resulting adhesive mass was applied with a spatula to the outwardly open hollow chambers of the frame profile. Due to the viscosity of the adhesive, it was not possible to uniformly cover all the surfaces of the hollow profile, because the confluence of the frame profile resulted in a confluence on the sides.

After application of the adhesive with a squeegee, a corner connector was then introduced into the hollow chambers covered with the adhesive, and as a rule the main amount of adhesive was pushed further into the hollow space as an ineffective kick.

Placing the adhesive at important bonding points achieved with a minimum amount of adhesive was not possible with known working methods. This is achieved by the manual application of the adhesive with a squeegee, the adhesive leakage and dripping and the glue blasting in the area of the bevel of the bevel of the joined frame profiles. This has resulted in increased cleaning costs.

It is also known from DE 25 00 937 A1 to provide a corner connection or a T connection in which the profiles in the contact area are stabilized by a fitted corner connector. The joint is combined with mechanical means on the profile, the tightness in the area of contact being improved by the sealing material injected to the profiles to be joined.

There is no surface distribution of the adhesive between the coupling and the profiles.

SUMMARY OF THE INVENTION

SUMMARY OF THE INVENTION The present invention is based on the object of providing a corner joint of the aforementioned type for the use of an injection molded adhesive, wherein the adhesive is applied to the corresponding areas essential for strength when sprayed onto the corner joint.

This object is achieved according to the invention by the features in the characterizing part of the main claim 1.

Only a small amount of glue is required to glue the corner connector and the slotted and clamped frame profiles, since the measurement of the adhesive receiving joint space is determined by performing the functional portions of the corner connection according to the invention, thus preventing glue from penetrating into other chambers in the area.

In comparison with the known squeegee adhesive application, in the corner connection according to the invention, a sufficient bonding strength between the frame profiles and the coupling is achieved with a third or half of the amount of adhesive.

In addition to reducing bonding results, clutch cleanliness also plays a role;

the amount of adhesive corner bonding during bonding to achieve good according to the invention an important corner frame profile for removing outwardly penetrating adhesive

Further features of the invention are apparent from the dependent claims.

Description of the drawings

Examples of embodiments of the corner connection according to the invention are shown in the drawings and described below. The drawings show:

FIG. 2 shows a corner connection of hollows deviating in bevel-cut profiles, of mechanical fastening

means, partly in section, Fig. 2 a view in the direction of arrow Ha of FIG. 2 Fig. 3 The corner connector shown in FIG. 1 in plan view, Fig. 4 a view in the direction of arrow IV in FIG. 3

Fig. 5 is a view in the direction of the arrow V in FIG. 3, FIG. Fig. 6 is a corner connector consisting of two angular portions in plan view; 7 shows a view in the direction of the arrow VII in FIG. 6 in a partial section, FIG. 8 shows a section along line VIII-VIII in FIG. 6, FIG. 9 is a section along line VIII - IX in FIG. 6, FIG. 10 is a perspective view of a corner connector cut from an extruded profile with an extruded profile attached;

Fig. 11 corner The coupling of FIG. 10 with overlapping holes on front side view, Fig. 12 view in the direction of arrow XII in FIG. 11 Fig. 13 body cover for the sides of the corner connector according to

Fig. 10, in plan view, FIG. 14 is a view in the direction of the arrow XIV in FIG. 13, FIG. 15 is a view in the direction of arrow XV in FIG. 14, FIG. 16 shows a frame profile provided with a spacer for forming a gap, in perspective view; married.

DETAILED DESCRIPTION OF THE INVENTION

The corner of the frame according to FIG. 1 is formed by chamfered profiles 1 and 2 and also by a corner connector 3, by means of which the profiles 1 and 2 are clamped in the punched shim 4. These shims 6 rest in the recess 5 of the corner connector 3 on the inclined surfaces 6 and 7 bevel joints. Likewise, the arms 8a 9 of the corner connector 2, which extend into the inner cavities 10 of the hollow sections 1 and 2, press their inner surfaces 11 against the inner surfaces of the corner of the frame.

According to the mechanical clamping of the profiles 1 and 2 with the corner connector 2, the force contact is determined in connection between the profiles 1 and 2 in the bevel line 2 and between the inner surfaces 11 of the corner connector 2 and the facing surfaces of the profiles 1 and 2.

The legs 8 and 9 of the corner connector 2 can thus be opened to the inside without the adhesive in this circumference being able to flow out of the outer surfaces of the corner connector 2 through the side surfaces 14 of the corner connector 2 into the interior of the arms 2 and 9.

The legs 8 and 9 of the corner connector 2 are U-shaped and open on the free faces as well as on the inside.

The corner connector 2 has in the corner line 12 a groove 12 flush with the chamfer line 7 extending from the side faces 14. wherein the side surfaces 14 form the outer faces of the corner connector 2 / which extend parallel to the median longitudinal plane 15 of the corner connector 2.

The grooves 13 are in relation to the adhesive to be sprayed in connection with a distribution channel 16 extending transversely to the median longitudinal plane 15, which is formed over the height of the coupling 2 ^and is limited by a flattening 17 in the region of the coupling 2 ^{and the} profiles 1 and 2 inserted. adjacent to the bevel gap 7, the distribution channel 16 has an adhesive spray opening 18. A nozzle 19 adapted to extrude adhesive is introduced into the injection opening 18.

By flattening 17 of the coupling 2, a distribution channel 16 is formed in the corner of the frame which is favorable for the glue inlet ratios, by means of which the sprayed adhesive is fed into the two grooves 13 and the glue 12 enters the side surfaces 14.

The side surfaces 14 of the corner connector 2 form with the inner surfaces of the hollow profiles 1 and 2 an adhesive receiving gap, the height of which is determined by the spacers 20, 21, 22 and 23.

These spacers 20, 21, 22 and 23 are in the embodiment of FIG. 1a also in the embodiments according to FIG. 6 to 9 in one piece with the corner connector 2 and can have any geometric shape.

In the illustrated embodiment, the rib-like spacers 20 and 21 are formed and extend parallel to the corner line 12, while the spacers 22 and 23 show protrusions of portions of the side faces 14 and have a triangular or elliptical contour.

As a variation to the embodiment shown, the spacers 20 to 23 may be mounted on the side faces 14 and may consist of the same or different material as the coupling 2.

The height of the spacers 20 to 23, or the height of the glue receiving gap, is chosen so that the glue can flow sufficiently in the gap and form a layer thickness optimal for the corner connection to achieve the desired shear strength.

By positioning the distribution channel 16 and the groove 13 in the bevel gap region 7, a greater layer thickness of the hardened adhesive is achieved in the bevel region 7, which is flexible with increasing layer thickness, thus providing additional sealing of the corner connector 26

By punching out the insert 4 from the material of the hollow profiles 1 and 2, and introducing these inserts 5 into the recess 5 in the corner connector 2, a small opening is created in the interior space of the profiles 1 and 2.

The spacers 20 to 23 are positioned on the side faces 14 such that only after the corresponding amount of adhesive has been pressed and after the corresponding distribution on the side faces 7, backflow occurs in the area of the shim 5 and a small amount of adhesive penetrates outwards. This indicates a sufficient filling level of the adhesive in the corner connector 3.

FIG. 5, the groove 13, which is formed to distribute the adhesive in the corner line 12 between the side faces 14, also extends through the inner corner and here forms the groove portion 13a. In the region of the groove 13a of the groove part 13a and the flattening 17, the corner connector 2 is solid, while the arms 8a 9 connected therein have internal chambers 24, 25 which are open to the free face of the arms 8, 9 and the inner side of the frame corner.

By means of these inner chambers 24 and 25, the weight of the corner connector 2 is reduced. ^{On the} side surfaces 14 and on the outside of the frame corner, the corner connector 2 is closed. FIG. 2 it can be seen that instead of the inserts 5 punched in the hollow sections 1 and 2, a countersunk head screw 26 or a mandrel 27 can also be used to clamp the hollow sections 1a and 2a of the corner connector 2. the profiles 1 and 2 pushed onto the coupling 2 and this coupling 3, or to achieve a force-fit connection in the bevel line, is between the threaded hole in the corner coupling 2 and the bore for the screw head 26 in the hollow profile 1 or 2, or between the bore for the mandrel 27; a shoulder provided by corresponding bores in the hollow profile 1, 2. As a result, an adhesive leakage gap is achieved in the screw connection, indicating a sufficient degree of filling. At the connection with the mandrel 27, the adhesive can protrude through the notch 28.

In FIG. 6 to 9, a clutch 29 of another embodiment is shown which is divided in a median longitudinal division plane 30 or in another plane parallel thereto. The coupling parts 31 and 32 are connected to each other by pins 33 extending into the opening 34 in the second coupling part 32.

The separation plane 30 between the coupling parts 31 and 32 passes through bores 35, one of which is formed in the region of the arm 8.9a and extends from the outside of the corner coupling 29.

These bores 35 engage pins for reinforcing the coupling part 31 and for transporting the hollow sections 1, 2 in the direction of the taper line 7 so that, on the one hand, spacers 36, 37, 38 are formed on the inner surfaces of the slotted sections 1, 2. on the side surfaces 39 of the corner connector 29 and, on the other hand, the hollow profiles 1, 2 are pressed against each other into the bevel line 7.

In the region of the line 12 of the corner connector 29, the corner connector 3 of FIG. 1 and 2, the grooves 13 formed from the side surfaces 39, which open at the outside of the frame corner in the adhesive distribution channel 16, which is limited by a flattening 17 in the corner region of the corner connector 29. groove.

The corner connector 29 has internal chambers 40 of another embodiment in the region of the arms 8, 9, to which glue cannot penetrate externally, since these internal chambers 40 are sealed by labyrinths 41, 42 which form overlapping portions of the stepped surfaces of the coupling portions 31, 32.

In FIG. 10, a corner connector 43 of another embodiment that is cut from extruded profile 44 is shown in a perspective view.

This corner connector 43 has hollow chambers 45.5. These hollow chambers 45, 46 are open to the side or to the front side of the free ends of the corner connector 43, so that the corner connector 43 of this form cannot be used in the corner of the frame because the adhesive is applied to the corner of the frame. mechanical fastening of the hollow profiles 1, 2 inserted into the arms of the corner connector 43 would result in glue flowing into the hollow chambers 45. 46.

In order to prevent adhesive leakage into the hollow chambers 45, 46, in the embodiment of FIG. 11 to 15, an angle-shaped cover 47 is provided on the side surfaces which surrounds the grooves 13 and the grooves for the glue and has a spacer function, since it determines the height of the gap for receiving the glue. The corner connector 43 optionally has a flattening 12 at its top which, with the hollow profile 1, 2 slid onto the arms 8, 9 of the corner connector 43, delimits the distribution channel 167 for the sprayed adhesive.

The cover 47 has a triangular centering element 48 on the side adjacent to the flattening 17 which, together with another centering element 50, delimits the flow channel 49.

At the free ends, the cover 47 is provided with a resilient tongue 51 which extends obliquely downward from the cover 47 and extends into the hollow chambers 46 of the corner connector 43.

The cover 47 has moldings 52 and 53 at the rear which extend into the hollow chambers 45 and 46. These shapes 52, 53 secure the cover 47 to the corner connector 43.

While in the illustrated embodiment there is a cover 47 associated with each side wall of the corner connector 43, there is also the possibility of sealing the openings in the hollow chambers 5 and 46 from the side with a plurality of covers 47.

On the corner connector 43 a bridge is formed in the corner area.

While in the examples described so far, the spacers 20 to 21, or the spacers 36 to 38, or the centering element 50, intended to determine the height of the adhesive receiving gap, were joined in one piece by the adhesive to the corner connector 3, 29, 43. there is also an option shown in FIG. 16 to form hollow profiles 54 of another embodiment with centering means 55 which define a gap for receiving adhesive with the side face 14 of the corner connector 2, 29. 43.

PI /

Claims (15)

PATENT CLAIMS 1. Angle connection of hollow profiles of window, door or facade trimmed bevelled pieces with a corner connector extending by their arms into the inner chambers of the hollow profiles which are clamped by means of fastening elements formed, mounted or screwed in the corner connector housing hollow profiles, wherein an adhesive is disposed between the inner surfaces of the hollow profiles and the corner connector, characterized in that the corner connector (3, 29, 43) has, in the region or adjacent to the corner line (12) or groove (7) chamfer (13) 49) extending from side faces (14, 39) extending parallel to its median longitudinal plane (15, 30), which is connected to a distribution channel (16) transverse to the median longitudinal plane (15, 30), which is formed in height of the corner connector (3, 29, 43) and is bounded in the region of the outer corner of the corner connector (3, 29, 43) by the flattening (17) and the hollow profiles pushed in (1, 2, 54), wherein spacers (20, 21, 22) are disposed between the side surfaces (14, 39) of the corner connector (3, 29, 43) and the inner boundary surfaces of the hollow profiles (1, 2, 54), 23, 36, 37, 38, 48, 50, 55). Corner connection according to claim 1, characterized in that a spraying opening (18) is formed in the vicinity of the bevel line (7) into which the distribution channel (16) opens. Corner connection according to Claim 1, characterized in that the spacer means (20, 21, 22, 23, 36, 37, 38, 48, 50, 55) are formed in one piece with the corner connection (3, 29, 43). ) or with hollow sections (1, 2, 54) or mounted on a corner connector (3, 29, 43) or on hollow sections (1, 2, 54). Corner connection according to claim 3, characterized in that the spacers (20, 21, 22, 2.3, 36, 37, 38) are designed as protrusions from a portion of the side surfaces (34, 39) or as ribs. PV >ί> 1 Corner connection according to claim 4, characterized in that the rib-like spacer (20, 21) is formed in one piece with the corner connection (3) parallel to the corner line (12) of the corner connection (3) aligned with the joint (7). bevel. Corner connection according to claim 3, characterized in that the centering means (55) is designed as a rib in the longitudinal direction of the hollow profile (1, 2, 54). Corner connection according to claim 3, characterized in that the spacer means (20, 21, 22, 23, 36, 37, 38, 48, 50, 55) are made of the same or different material as the corner connection (3, 20, 21, 22, 23, 36, 37, 38, 48). 29, 43) and are glued to the corner connector (3, 29, 43). Corner connection according to claim 1, characterized in that the groove (13) is formed in the corner line (12) between the side faces (14, 39) and the inner corner of the corner connector (3, 29, 43). Corner connection according to one of the preceding claims, characterized in that the legs (8, 9) of the corner connection (3, 29, 43) are U-shaped and open on the free faces and on the inside. Corner connection according to one of the preceding claims, characterized in that the clamping means of the hollow profile (1, 2) has an outlet opening which is connected to the end of the adhesive distribution. Corner connection according to claim 1, characterized in that the corner connection (29) is divided in a median longitudinal separation plane (30) or in a plane parallel thereto and the coupling parts (31, 32) are connected to each other by pins (33) formed in the first coupling part (31) in the separation plane, which fit into the openings (34) in the second coupling part (32). FV / M-4 * 7 - A corner connection according to claim 11, characterized in that the outer surfaces of the corner connector (29) opposite the inner chambers (40) are sealed by labyrinths (41, 42) formed by a stepped surface. A corner connection according to claim 1, characterized in that the corner connection (43) has at least two hollow chambers (45, 46) which are open on lateral sides parallel to the median longitudinal plane (15) and at the free end of the arm face (15). 8, 9), the openings on the side are sealed by a cover (47) having a groove (13) and centering elements (48, 50). The corner connection according to claim 13, characterized in that the corner connection (43) is cut from the extruded profile (44). A corner connector according to claim 13 or 14, characterized in that the cover (47) has a flexible tongue (51) at the underside of the molding (52, 53) and a free end which extends into the hollow chamber (45, 46).