DE2053058A1 - Frame with frame elements designed as a hollow profile - Google Patents

Description

Frame with frame elements designed as a hollow profile. The invention relates to a frame for windows, doors, panels, etc. with a hollow profile Frame elements that are welded to one another and have a rigid angle inside Corner connection is provided between frame elements.

The invention also relates to frame elements for such frames and the parts for the rigid corner connection.

A particular application of the invention is directed to window frames. Such windows can be made of plastic and are made of a hard plastic or hard PVC and using soft plastic or soft PVC with support tubes known.

Hard plastic windows have frame elements made of extruded profiles, wall parts with different thicknesses to ensure dimensional stability and in the interior partition walls, in particular also wall attachments for production of pockets into which reinforcement strips can be inserted. But you can too be designed without inner pockets and reinforcements and instead a support tube have inside.

Soft plastic windows consist of frame elements in which an inner Support tube is arranged, which has a plastic coating. These support tubes exist for example made of aluminum. It is known that such support tubes run out of round are, and in particular rectangular. There are also support tubes known which have an angular Have indentation in the longitudinal direction, the flanks of the indentation contact surfaces for other frame profiles or panes. In such a known embodiment it is provided that such film elements can be rotated twice by 1800 are mutually joined together and in the closed state with their cylindrical Part of each other. This is taken into account for the present invention.

A particular problem is the production of socket connections on such a framework. For example, there is a miter cut at corner connections Profiles known, at least one introduced through holes in the profiles Screw to connect other profile parts, which means by means of such a screw Nuts can be tightened.

It is known on metal windows for the rigid corner connections use a two-legged rigid elbow, which has wedge surfaces, by means of which it can be clamped in the hollow profiles. One leg is in front of it the weld tensioned, while a tensioning screw of the other leg through a prepared opening in a frame element is accessible and after welding can be braced.

In such designs, one-sided wedge guides are on the legs known, the wedge pieces on the one hand on the wedge guides and on the other hand Support directly on parts of the wall. These wedge pieces are thereby operated by actuating means which are accessible from the corner of the Eok connection.

Furthermore, it is on frames consisting of metallic frame elements known, on wedge guides of leg pieces of a corner connection producing Drive angle wedges from the ends of the leg pieces. To this end the frame elements must have relatively long openings in the longitudinal direction of the Frame elements have to have the necessary leeway for inserting a tool and for To create propulsion of the wedge elements.

It is also known, on one-piece corner brackets, the legs that are inserted into the frame elements, to slit and after the manufacture of the Spread the corner connection by means of pressure screws inserted on the side.

However, special problems arise when the frame elements also are to be connected by welding. When a weld occurs As is known, changes in length in the area of the weld seam. Therefore be two-legged Corner brackets on metallic hollow profiles are used so that either the bracing only takes place through the corner angles introduced and the frame elements not directly or glue is applied to create an additional connection to manufacture.

If there is a weld in a version with plastic, in particular with an inserted support tube, result due to the the welding tolerances caused special problems with such Execution in which the support tube is preferably not welded and in which Welding of the protruding plastic ends between the support tubes one more or less wide gap remains.

The invention relates in the particularly preferred embodiment on frames with such frame elements.

It is known in this context that, for example, with windows with soft PVC for the corner connection, angle pieces introduced and welding mirrors are used, which have a central recess, the central support tubes or at least encloses a two-legged corner bracket if the above Plastic coatings are plasticized for welding. This procedure is relatively cumbersome and also has the disadvantage that the corner brackets after welding the plastic covers practically loosely in the support tubes sit if they are not glued, whereby they of course depending on the dimensional accuracy cause a stiffening of the corner connections.

The invention is based on the object of creating a framework its frame elements, which may be mitred at corner connections are and are reinforced by a corner bracket, by welding - at least by welding a plastic cover - to be connected, but with a continuous one Welding mirror can be used, which excludes a continuous elbow, and After the welding, a frame is created that is not just a rigid angle Has connecting piece, but at the same time fixed legs of the connecting piece in the area of the corner connections.

According to the invention, this object is achieved in that the angularly rigid Connection consists of two initially separate inner angle leg pieces that are displaceable in the hollow profiles and on the sections facing the corner additionally have nested profiles, with fastening means being provided which can be operated from the outside in order to lock the profiles into one another.

Surprisingly, it turns out that the frame elements are handled separately can be, wherein the leg pieces are arranged displaceably in these frame elements will. Actuating means for the leg pieces are not just reciprocal Engagement so that a rigid angle piece is created in a frame corner, but these leg pieces are also each individually in the hollow profiles or Support tubes set by hollow profiles.

According to an advantageous embodiment, the leg pieces have Expandable wedge-shaped recesses or wedge guides that can be expanded on one side on, in or on which wedge pieces are arranged in a manner known per se, which can be moved by externally actuated fasteners, such as screwdrivers, to fix the leg pieces in the hollow profiles, in particular support tubes. This creates a particularly simple design for bracing the leg pieces created on the support tubes, at the same time the corner connection of the reinforcement angle is guaranteed.

Appropriately, a wedge has a transverse bore in which a Pressure screw is provided which has a flank of an expandable wedge-shaped Recess or one-sided wedge guide applied and a jamming in the Pipe effected at a point through an actuation hole in a frame member is determined. This allows a leg piece when it is in its engagement position is brought to be set without the frame element particularly or it is stressed deforming because large contact surfaces are provided. Execution with the transverse bore and an actuating hole to be brought into alignment with it ensures the position of engagement with the other leg piece. The cross hole, also in profile, can be made before welding.

Advantageously, the wedge has a threaded longitudinal bore into which a clamping screw can be inserted, this longitudinal bore in the case of welded hollow profile edges with a transverse hole in the other leg piece of a corner bracket that forms the angle flees. As a result, the wedge piece can be designed for the other leg piece at the same time will. It goes without saying, of course, that a wedge piece can cut both the transverse bore and the can also have the longitudinal bore, so that the same elements for both leg pieces are usable.

Furthermore, a favorable embodiment provides that in a frame element two openings near the junction with another frame element are made, one of which with a transverse hole in a leg piece and a wedge and the other with the center line of the other Frame element which is arranged at right angles to the other frame element, and is in alignment with the thread length bore of the associated leg piece. Through this it is sufficient to prepare a frame element accordingly or when assembling one The required mounting openings are to be attached to the frame in just one frame element. This is advantageous because in this case only these frame elements need to be clamped in a drilling jig, so that simple Work requirements are met.

According to the preferred embodiment, the leg pieces are perpendicular to a transverse bore arranged on the head section externally extending grooves whose Flanks under a certain, possibly matching screw heads Angles are inclined, the leg pieces having an axial longitudinal bore and to the End faces have strip-shaped projections, the flank angle with the angles of the groove flanks match. Such profiling is therefore preferred because contact surfaces have a certain length against rotation. It goes without saying that other mutually engaging profiles are also included, for example of a rectangular type in plan view. The above-mentioned grooves have the advantage that they can be produced economically (e.g.

as a drawn aluminum profile).

It goes without saying that the corner connection according to the invention not only is applicable to profiles arranged at right angles to one another, but also to Profiles assembled at different angles. Then the with each other in Engaging surfaces of the leg pieces as well as the grooves and projections below formed at a corresponding angle.

The design of the leg pieces depends on the materials. For example, if the leg pieces are made of sheet metal, the profiles can be made by extrusions and / or indentations, being rectangular in plan view Offer forms.

The wedge pieces in the expandable end flanks of the Leg pieces included, with the end flanks contact approaches exhibit, which keep the wedge pieces captive. As a result, the frame elements or The support tubes are treated with particular care, with the edging of the wedge pieces the functional reliability in the application is also increased.

The leg pieces advantageously have cross-wise arrangement in their heads Holes. This makes it possible to have the same leg pieces for the two to use frame elements to be joined together.

An advantageous embodiment provides for the production of a T-joint before that one of the leg pieces is arranged in the perpendicular to a frame element Hollow profile is provided and this one frame element at this point two mutually aligned Has transverse openings, of which the outer one has a corresponding diameter the head of a clamping screw and the inner one corresponding to a diameter has the shaft of the clamping screw. So here can a leg piece of the above specified form can only be used with another clamping screw, see above that the economy is given.

In one embodiment, the frame elements consist of a hard plastic, in which the leg pieces of the corner connection are inserted directly.

In another training in which the frame elements are made of a metallic Support tube are made with a plastic coating, the leg pieces are in the metallic support tube arranged. Such a solution results in particular the problems mentioned in the introduction that the plastic coating is welded, while between the metal support tubes, which are mitred, a more or less wide gap generally remains when welding, whereby not only a continuous welding plate is used, but also a leg connection or tensioning of the stiffening bracket or T-piece is to be brought about.

In order to align, in particular, the transverse bore with certain openings In particular, non-circular hollow or support tube profiles are to be ensured in the frame elements intended. These are preferably essentially rectangular. This is at the same time created the prerequisites for an installation of frames or panes. According to a Another embodiment, the hollow or support tube profiles have a partially round Circumferential section. They are preferably oval in cross-section, with the Elements have the same cross-sectional shape. This takes into account that the hollow or support tube profiles have a round cross-section with an indentation that is corner-shaped in cross-section to accommodate e.g. a pane or a frame and the leg pieces have an adapted cross-section with a corresponding 1: '# inwardness; the recoveries can of course also be used with oval or polygonal or hexagonal profiles be arranged.

While it was previously necessary for the production of e.g. a plastic window If corner reinforcements were used, these corner connections or - Insert angles that supported or strengthened the corner and then with a recessed welding mirror to melt the plastic coating and to compress after disengagement of the welding mirror, the invention provides a new method in that in the hollow profiles or hollow support tubes non-rotatable are thrown into this guided leg pieces, then the plastic coating is melted, for which purpose a continuous welding mirror can be used, after which Removal of a compression of the frame elements for welding the coatings takes place, whereupon a leg piece by corresponding erection of the plastic window thrown into the corner and fixed there by screwing from the outside and with the Support tube is braced, after which the other leg piece by tilting the frame guided into the corner connection and another tensioning screw operated from the outside, to achieve two effects, namely once a rigid angle Connection with the other leg piece and on the other hand a bracing with the assigned support tube. This creates a rigid corner connection with the simplest of means achieved, which makes additional metal inserts superfluous, can be operated from the outside and is to be created by conventional welding processes.

The invention is explained below on the basis of exemplary embodiments, which are shown in the drawing. In the drawing, FIG. 1 shows a side view a frame corner in the section before the assembly and under the intermediate Welding mirror; Fig. 2: such a frame corner in a corresponding representation their finished execution; FIG. 3: a view according to FIG. 1 in a longitudinal section the line III - III in Fig. 1; Fig. 4: an example of a leg piece of others Execution as used in Figures 1 and 2, in side view; Fig. 5: a plan view of Fig. 4; Fig. 6: In a partial side view, a T-connection in section below Use of a leg piece according to FIG. 1; Fig. 7: a cross section through another frame training in the cut.

In all figures, the same parts are denoted by the same reference numerals.

In the embodiment according to FIGS. 1 to 3, a corner angle is shown, which is composed of the frame elements 1 and 2 or completed in FIG. 2 is. The frame elements are drawn separately in FIG. 1. You are at theirs Ignition mitred according to lines 3, 4. The frame elements consist of an inner metallic support tube 5, 6 and one arranged on this Plastic clothing 7, 8, which consists for example of soft PVC. The immediate Sheath is drawn cut in Figs. 1 and 2, while going out therefrom The design of the webs can be seen particularly clearly from FIG. 3. Here it is, for example, relatively long webs 9, 10 at diametrically opposite corners and around two-legged undercut projections 11, 12 think of the diametrically intended.

These undercut projections are used to accommodate additional profiles, Sealing strips or the like.

According to FIG. 3, the support tubes 5, 6 and the cladding are rectangular executed. It goes without saying that any other non-circular cross section can also be used is.

The example with metallic support tubes, which are preferably made of aluminum exist, and a plastic garment is preferred because a such execution, special problems arise, which are described above.

The mitered frame elements 1, 2 are at their ends prepared so that the plastic casings 7, 8 over the metal support tubes 5, 6 protrude. After the leg pieces 13, 14 of a corner reinforcement angle in which are thrown in, the undersize of these leg pieces being free Slidability is allowed between the perpendicular to each other in a not shown device clamped frame elements 1, 2 a continuous welding mirror 15 introduced.

be by axial advance of the frame elements on the welding mirror the protruding portions of the plastic casings 7, 8 melted and after Removal of the welding mirror 15 when it is pressed together again by means of the device, which is known per se, welded together. The welded condition is in Fig. 2 shown. bs it can be seen that the end edges of the support tubes 5, 6 are still do not need to lie against each other.

i # un, for example, the arrangement of the sock shown is set up in such a way that that the leg piece 13 falls down. The leg piece is then in this position in yet to be described quietly set, with its forehead immediately at the support tube of the other frame element 2 rests.

The leg pieces 13, 14 according to FIGS. 1 and 2 show only one preferred embodiment. In addition, it is noted that modifications are possible which will be specifically discussed below.

For example, the leg pieces shown are based on the leg piece 13 described. For this purpose, it is basically pointed out that both leg pieces 13, 14 are executed the same, which is essential for an economical execution is.

The leg piece 13 has a head piece 16 and then two outside parallel-flanked and spreadable Lndflanken 17, 18, which are to their the ends facing away from the head piece taper and contact lugs 19 at these ends, 20 have, the end flanks have surfaces on the inside on the sides facing them 21, 22, which move away from each other with increasing distance from the head piece and thus form wedge surfaces to the centreline. Is captured in these partial areas in the contact lugs 19, 20, a wedge 23 is arranged, which with respect to the leg piece 13 has a threaded transverse bore 24. There is a pressure screw in this threaded cross-hole 25 inserted, the end piece 26 on the L <ndflank 18 hits and its head piece 27, which is provided with a transverse actuation slot 28, for example is, ends in a bore 29 of the end flank 17.

In the frame member 1 is at a predetermined distance from that winds of the inner support tube 5 arranged a transverse bore 30, over which the outside An opening 31 is also arranged in the plastic casing 7. The distance of the Openings 30, 31 from the sack to be formed is as large as the distance from the foremost end face 35 of the leg piece 13 to the axis of the pressure screw 25, so that this can be brought into the corner connection after welding, whereupon - As can be seen from Fig. 2 - the pressure screw 25 through the openings 30, 31 is tightened, which later by a filling 32 of the plastic casing 7 is closed. The spreading that is brought about results in an areal System of the end flanks 17, 18 on the support tube 5 and a definition of the above-described Leg piece.

The head piece 16 is penetrated by a central longitudinal bore 33, which opens into a cavity 34 at the root between the end flanks 17, 18. At the front face 35 is provided corresponding to a projection, whose lateral flanks 36, 37 extend, for example, at 450 to one another and go through the entire height of the leg piece.

At a distance from the foremost end face and the adjacent end face parts 38 a transverse bore 39 is drawn through the head piece. The ends of this cross hole open into grooves 40 41, which extend over the entire width or height and the flanks 42, 43 of which assume the same angle to one another as the lateral ones Flanks 36, 37. It can thus be seen that - as also shown in FIG. 2 in particular is - the projection with the foremost end face 35 and the lateral Flanks 36, 37 can insert into the groove 41 with corresponding lateral flanks in such a way that a non-rotatable and non-tiltable position is provided, especially since the end face parts 38 of the leg piece 14 flush with the side wall parts 44, 45 of the head piece 16 of the Leg piece 13 rest.

After the welded joint in particular the plastic casing is made, the leg piece 13 is set in the position shown, by tightening the pressure screw 25 through the openings 30, 31. After that, will the corner piece of the frame erected so that the leg piece 14 in the corner falls. Here, its front face 35 meets the groove 41, each Place the side flanks against one another so that they cannot rotate and the longitudinal bore 33 with the transverse bore 39 aligns.

That in the leg piece 14, in particular the end flanks 17, 18 of this Leg piece, inserted wedge piece 46 has a central threaded longitudinal bore 47, which is aligned with the longitudinal bore 33.

When the leg pieces 13, 14 are joined together as described, they are in alignment the longitudinal bore essentially with a conical opening 49 in the support tube 5 and an opening 50 arranged above this in the plastic casing 7. The Conicity in opening 49 advantageously corresponds to the conicity of head 51 Clamping screw 52, which through the transverse bore 39 in the leg piece 14 and in particular the threaded longitudinal bore 47 of the wedge piece 46 is guided and this under expansion the end flanks 17, 18 tense. As a result, the leg section 14 is simultaneously braced in the inner support tube 6 of the frame element 2 and the mutual engagement the end faces made. The training is such that the leg pieces 13, 14 are mutually interchangeable, but that the wedge pieces are each specially designed are. However, this also includes wedge pieces with longitudinal and transverse bores are usable.

In Fig. 3, the Qewindelängibbohrung 47 of the wedge piece 46 is between the end flanks 17, 18 of the leg stalk 14 can be seen.

While the leg pieces 13, 14 in Fig. 1, for example, from a cast, injection-molded or drawn profile made of aluminum, plastic and the like 4 and 5 show an embodiment of a leg piece Sheet.

There are side strips around an end face part 53 as end flanks 54, 55 bent back. A projection 56 is pressed out of the end face part, whose end face coincides with the front end face 35, whereby by the Pushing out side flanks 37, 38 are formed. The front face part is penetrated by a bore 57 which practically forms part of the longitudinal bore 33 forms. The side strips 54, 55 are corresponding to the grooves 40, 41 according to FIGS. 1 to 3 provided with indentations 58, 59 extending over the sides, on whose The openings 60, 61, which form the transverse bore 39, are located at the bottom. the Side strips 54, 55 are spaced therefrom by cross pieces or a transverse wall 62 supported, which has a central bore 63. At their ends are the side strips 54, 55 provided with the attachment approaches 19, 20. In front of these have the hard shoulder 54, 55 opposing indentations 64, 65 and 66, 67, of which the Pair of indentations 64, 65, which is further away from the contact lugs 19, 20, is formed deeper than the other pair of indentations 66, 67. This results a wedge surface formed by the imaginary connection between the indentations, in which a wedge 68 is guided, for example the wedge 46 in Fig. 1 corresponds. The example shown is relatively cheap Execution before.

It is not absolutely necessary to have leg pieces with two inside wedge-shaped end flanks 17, 18 are executed. For example, it would be possible to provide only the end flank 17 and to form the wedge 46 so that its in Fig. 1 upper side parallel to the center line of the frame element 2 runs. It is also conceivable, with reference to FIG To lead pressure screw 25 also at its head end in a threaded hole, so that the end flanks 17, 18 can be spread without interposing a portion. Other modifications are possible. The decisive factor is the non-rotating and angular interlocking the head pieces of the leg pieces when they are braced in the frame elements.

It is understandable that these are made of metal tubes or only can consist of hard PVC hollow profiles.

Fig. 6 shows a T-connection from a frame element 69, whose Plastic cladding 70 or webs 71 arranged on it, mitered accordingly the lines 72, 73 are cut so that a T-connection with a frame member 74 is possible.

Its plastic profile attachments 75, 76 are accordingly mitred tailored.

The frame element 74 consists of an inner support tube 77 with a Plastic casing 78. In the inner support tube is a leg piece 79 of the described Execution arranged, iem a wedge piece 80 with a threaded longitudinal bore 81 is provided is.

The other frame element 69 has its support tube 81 and its plastic casing 82 two aligned transverse openings 84, 83, of which the outer, 84, a diameter corresponding to the head 85 of a clamping screw 86 and the inner, 83, corresponding to the shaft 87 of the clamping screw. This allows in the shown Way a tension between the frame elements 69, 74 can be brought about. It will be understood that the outer opening 84 - as well as the others described outer openings 31, 50 - are closed by means of a plastic lining 88 can.

7 shows an embodiment with a modified profile cross-section with a support tube 89 and a corresponding plastic casing 90, which is partially have round circumferential sections, but corner-shaped indentations on opposite sides 91, 92 for receiving, for example, a disk 93 or for placing on a frame exhibit. The leg pieces 94 which are only inserted in a longitudinally displaceable and non-rotatable manner have a corresponding cross-section.

In FIG. 7, the end face is in accordance with the illustration in FIG. 3 of a section 95 with a threaded longitudinal bore 96 can be seen.

Claims (15)

Patent claims 1 frame for windows, doors, panels etc. with a hollow profile Frame elements that are welded together and inside an angularly rigid Corner connection is provided between frame elements, characterized in that the rigid angle connection of two initially separate inner angle leg pieces (13, 14), which are displaceable in the hollow profiles (1, 2) and to which the Sections facing the corner with complementary interlocking profiles (55-37, 40-43, 56, 58, 59), fastening means (23, 25, 46, 52, 87) being provided which can be operated from the outside in order to lock the profiles into one another. 2. Frame according to claim 1, characterized in that the leg pieces wedge-shaped recesses (13, 14, 64-67, 79) that can be expanded or that can be expanded on one side Have wedge guides, in or on which wedge pieces in a manner known per se (23, 46, 68) are arranged, which by externally actuatable fastening means how screws (52, 86) can be moved to place the leg pieces in the hollow profiles, in particular supporting tubes. 3. Frame according to claim 1 and 2, characterized in that a Wedge piece (13, 14) has a transverse bore (24) in which a pressure screw (25) is provided which has a flank (18) of an expandable wedge-shaped recess or one-sided wedge guide applied and a jamming in the tube (5) a location effected by an actuating hole (30, 31) in a frame member is determined. 4. Frame according to one of claims 1 to 3, characterized in that that the wedge (46, 80) has a threaded longitudinal bore (47, 81) into which a clamping screw (52, 86) can be inserted, this longitudinal bore being welded at Hollow profile edges with a transverse bore (39, 60, 61) of the other forming the angle Leg piece (13) of a corner bracket is aligned. 5. Frame according to claim 4, characterized in that in a frame element near the junction with another frame element two orders (30, 31 and 49, 50) are available, one of which (30, 31) with a cross hole (24, 29) in a leg piece (13) and a wedge piece (23) and the other (49, 50) with the center line of the other frame element (2) that leads to the other frame element (1) is arranged at an angle, preferably at right angles, and with the threaded longitudinal bore (37) of the associated leg piece (14) is in alignment. 6. Frame according to one of claims 1 to 5, characterized in that that the leg pieces (13, 14) are arranged perpendicular to one on the head section (16) Transverse bore (39) have grooves (40, 41) running outside, the flanks (42, 43) of which at a certain angle, possibly corresponding with screw heads are inclined, and that the leg pieces (13, 14) have an axial longitudinal bore (33) and have strip-shaped projections (35) on the end faces, the flank angles of which (36, 37) match the angles of the groove flanks (42, 43). 7. Frame according to one of claims 1 to Ó, thereby marked net that the Iseilteile (23, 46) in expandable ßndflanken (17, 18, 54, 55) of the leg pieces (13, 14) are included, the end flanks of contact approaches (19, 20) that hold the Reilstacke captive. 8. Frame according to one of claims 1 to 6, characterized in that that the leg pieces (13, 14) in their hops arranged crosswise holes (33, 39). 9. Frame according to one of claims 6 to 8, characterized in that that the leg pieces (i3, 14) are made of sheet metal and the profiles (57-59, 64-67) are formed by disengagement and / or binding. 10. Frame according to one of claims 1 to 9 for the production of a ? -Verbindunrn, characterized in that one of the leg pieces (79) in the is provided perpendicular to a lame element (69) arranged hollow profile (74) and this one frame element (69) has two transverse openings that are aligned with one another at this point (83, 84), of which the outer (84) has a corresponding diameter the head (85) of a clamping screw (86) and the inner one (83) has a diameter corresponding to the shaft (87) of the clamping screw. 11. Frame according to one of claims 1 to 10, characterized net that the frame elements (1, 2) consist of a hard plastic in which the Leg pieces (13, 14) of the corner connection are used directly. 12. Frame according to one of claims 1 to 10, wherein the frame elements are made of a metallic support tube with a plastic coating, thereby characterized in that the leg pieces (13, 14) in the metallic support tube (5, 6, 39) are arranged. 13. Frame according to one of claims 1 to 12, characterized in that that the hollow profiles (1, 2, 5, 6) are essentially rectangular. 14. Frame according to one of claims 1 to 11, characterized in that that the hollow profiles (89, 90) have a partially round circumferential section, preferably are oval in cross-section and that the leg pieces (94) are the same non-round Have cross-sectional shape. 15. Frame according to claim 14, characterized in that the hollow profiles (0i90) round cross-section with an indentation (91, 92) to accommodate e.g. a disc or a frame and the leg pieces (94) have an adapted cross-section with a corresponding indentation.