EP4217567A1

EP4217567A1 - Telescopic arrangement for attachment to a hollow profile of a frame or leaf of a door or of a window

Info

Publication number: EP4217567A1
Application number: EP21772727.0A
Authority: EP
Inventors: Markus Lenze; Michael Hahn
Original assignee: Dr Hanh GmbH and Co KG
Current assignee: Dr Hanh GmbH and Co KG
Priority date: 2020-09-25
Filing date: 2021-08-30
Publication date: 2023-08-02
Also published as: WO2022063525A1; CN116324107A; DE102020125078B3

Abstract

The invention relates to a telescopic arrangement (100) for attachment to a hollow profile (H) of a frame or leaf of a door or of a window, said arrangement comprising an assembly (B) which has two fastening elements (1, 1') and a fixing screw (2) that has a circumference (U) and a longitudinal extent (L) and an external thread (3), wherein the fastening elements (1, 1') each comprise a partly-round recess (4, 4'), and the partly-round recess (4, 4'), at least in the assembled state of the assembly (B), has an internally threaded portion (5, 5') which interacts with a region of the external thread (3) of the fixing screw (2), which region extends over part of the circumference (U).

Description

Telescopic arrangement for attachment to a hollow section of a frame or leaf of a door or window

The invention relates to a telescoping arrangement for attachment to a hollow profile of a frame or leaf of a door or a window, with an assembly that includes two fastening elements and a fixing screw with an external thread that has a circumference and a longitudinal extension.

Such an arrangement is already known, for example, from EP 1 223 274 B1, in which the fastening elements are designed as sleeves which are braced against one another with the fastening screw.

The disadvantage of known arrangements is that they load the hollow profile with forces acting between the fastening elements, which can lead to a deformation of the hollow profile and/or that they are difficult to assemble.

It is therefore the object of the present invention to provide an arrangement which is improved with regard to at least one of the disadvantages mentioned above.

This object is achieved by the arrangement given in claim 1. The telescoping arrangement according to the invention is characterized in that the fastening elements each comprise a part-round recess, and the part-round recess has an internal thread section, at least in the assembled state of the assembly, which interacts with an area of the external thread of the fixing screw that extends over part of the circumference.

The internal thread sections of the two fastening elements of an assembly thus interact with the external thread of the same fixing screw.

The fastening elements of an assembly preferably engage in one another in the assembled state.

In the context of this document, the term "telescopic" means variable in length, preferably while maintaining an interlocking of the two fastening elements of an assembly.

The telescoping capability is preferably achieved in such a way that the fastening elements of an assembly can be pushed into one another over part of their length, preferably in such a way that the overall length of the fastening elements results, which can preferably be selected.

In the mounted state, the fixing screw preferably engages in both fastening elements and, more preferably, fixes them in the selected overall length.

Due to the ability to change the length, a single arrangement can preferably be attached to hollow profiles of different thicknesses, so that the number of different types of fastening elements for use with hollow profiles of different thicknesses is reduced.

The ability to change the length, or the difference between the longest and the shortest selectable total length, is preferably about 15-20 mm. With a change in length of 20 mm, the same arrangement can be used, for example, on profiles whose thickness is between 100 mm and 120 mm.

The part-round recess of a single fastening element does not in itself provide a full-circumferential bore into which the fixing screw engages, but the part-round recess rests with its internal thread section only over part of the circumference of the fixing screw on its external thread. The part of the circumference can be about one eighth or one quarter or one half of the circumference.

Taken together, the internal thread sections of the fastening elements of an assembly preferably extend over an area of the external thread that makes up at least almost the entire circumference of the fixing screw. Preferably, the internally threaded sections of the two fastening elements together form a slotted threaded bore for the fixing screw. In this way, a resilient thread engagement of the fixing screw in the thread sections can be achieved.

The fastening elements can each have exactly one or more, for example two or four, part-round recesses with an internally threaded section.

The fixing screw preferably engages in the internally threaded sections of the fastening elements. The fastening elements are preferably each fixed by the interaction of their internally threaded section with the fixing screw in the longitudinal direction of the fixing screw relative to the latter and thus also relative to the respective other fastening element at the desired distance from the latter. This fixation of the two fastening elements preferably takes place relative to one another without the fastening screw causing tensile forces which act between the fastening elements and tend to reduce the distance between the fastening elements. As a result, the hollow profile can be relieved and deformation of the hollow profile can be avoided.

The arrangement can only serve to stabilize the hollow profile. The arrangement preferably serves to fasten a fitting part to a hollow profile of a frame or leaf of a door or a window. The arrangement can preferably also be referred to as a fastening arrangement and, more preferably, the fixing screw can also be referred to as a fastening screw. The fixing screw then preferably passes through a hole in the fitting part and fulfills two tasks: on the one hand, it fixes the two fastening elements relative to one another and, on the other hand, it tightens the fitting part against a fastening element and/or the hollow profile and thereby fastens the fitting part to the sash or the frame. The fitting part is preferably a fitting part of a band for pivotably fastening a leaf of a door or a window to a frame.

Preferably, the fastening elements each have an extension and a recess, and the extension of one fastening element is at least partially arranged in the recess of the other fastening element in the assembled state of the arrangement and vice versa. The two fastening elements therefore preferably engage in one another in the assembled state.

The recess of one fastening element preferably has a shape and size complementary to the extension of the other fastening element. The extension of one fastening element is preferably arranged in the recess of the other fastening element with at most slight play. This prevents an extension of the fixing screw from "deviating" during assembly and thwarting the fixing of the fastening elements to one another and the resilient threaded engagement of the fixing screw in the threaded sections.

The partially round recess in the fastening elements of an assembly preferably extends over a wall of the recess and a wall of the extension of an individual fastening element.

In one embodiment, the internally threaded portion in at least one of the fasteners of an assembly extends only over a wall of the recess and not over a wall of the extension. In another embodiment, the internally threaded section in the fasteners of an assembly extends over a wall of the recess and more preferably over a wall of the extension of a single fastener. The internally threaded section can therefore be designed to be particularly long and the fixing screw can interact with the internally threaded sections over a particularly long length, so that a particularly high force can be transmitted from the fixing screw to the fastening elements.

The wall of the recess, over which the partially round recess extends, preferably runs parallel to the longitudinal extent of the fixing screw in the assembled state of the arrangement.

The wall of the extension, over which the partially round recess extends, preferably runs parallel to the longitudinal extent of the fixing screw in the assembled state of the arrangement.

The wall of the recess and the wall of the extension, over which the part-round recess extends, preferably lie at least approximately in a common plane.

However, the internally threaded section can also extend only on one wall of the recess of one fastening element and on one wall of the extension of the other fastening element of the assembly, especially when the fixing screw is designed as a short self-tapping screw.

In a conceivable embodiment, one of the two fastening elements has a longer extension and/or cylindrical area than the other fastening element. The arrangement therefore preferably comprises two different types of fastening elements. In this way, the possibility arises of ensuring the usability of profiles whose strength differs significantly from one another with little effort. This is because two identical fastening elements with a shorter extension and/or cylindrical area can be used for less strong profiles, and one of the two fastening elements can have a longer extension and/or cylindrical area for medium-thick profiles. see range than the other fastener, so different fasteners are used, and for very strong profiles two identical fasteners with long extension and / or cylindrical portion can be used. The fastening screw can be made shorter for less strong profiles than for medium strong and than for very strong profiles. For example, three different screw lengths can be used.

In another embodiment, the two fasteners of an assembly are identical.

The fastening elements preferably each have a cylindrical area and a part-cylindrical area and the recess is arranged in the cylindrical area and the part-cylindrical area provides the extension in each case.

The fixing screw preferably engages axially in at least one fixing element in its cylindrical area and can therefore also be referred to as a central fixing screw.

Preferably, the fastening elements each have a head at their end facing away from the extension.

The head preferably provides a—preferably ring-shaped—contact surface for contact with the hollow profile from the outside. The head ensures that the arrangement can withstand high loads. The head of at least one single fastening element preferably has a bore which serves to receive and guide the fixing screw.

Preferably, the cylindrical portion has the head at one end and the opening of the recess and the extension at the other end.

The extension preferably originates from the cylindrical area next to the recess. The fastening elements can each have precisely one or more, for example two or four, extensions. The fastening elements can each have precisely one or more, for example two or four, recesses.

The part-round recess of the fastening elements preferably extends both over their cylindrical area and over their part-cylindrical area.

If the fastening elements of an assembly are each designed as elements separate from one another, then a prerequisite is created for the arrangement to be able to be provided for attachment to a hollow profile of a frame or leaf of a door or a window. The arrangement for penetrating attachment to a hollow profile is preferably provided in such a way that the fastening elements of an assembly can be pushed from opposite sides into holes in spaced profile walls of the hollow profile until their contact surfaces are in contact with the hollow profile on the outside from opposite sides and then at this distance can be fixed to each other by the fixing screw.

In the assembled state of the arrangement, the internally threaded sections of the fastening elements of an assembly are preferably arranged on opposite sides of the fixing screw in order to form the slotted threaded bore for the fixing screw. The internal thread sections of the fastening elements of an assembly are preferably arranged at least partially at the same height in relation to the longitudinal extent of the fixing screw in the assembled state of the arrangement.

The internal thread sections preferably extend in the direction of the longitudinal extension of the fixing screw over more than twice and more preferably less than 20 times the diameter of the fixing screw.

The fastening elements can, for example, comprise aluminum and/or plastic and/or die-cast zinc. The fastening elements are preferably each formed in one piece. The fixing screw is preferably a self-tapping screw. The fixing screw preferably forms the threads of the internally threaded sections of the fastening elements of an assembly itself when it is screwed in. However, the threads of the internally threaded sections can also be precut and the fixing screw can be non-self-tapping.

It is conceivable that the screw is a self-drilling screw. In this embodiment, the fixing screw preferably partially forms the partially round recesses itself together with the threads of the internally threaded sections of the fastening elements of an assembly when it is screwed in.

If the telescoping arrangement comprises a plurality of, preferably exactly two, assemblies and a fastening element of one assembly is connected to a fastening element of another assembly by means of a connecting element, this results in a particularly simple and effective prevention of a fastening element from turning unintentionally when the fixing screw is screwed in.

If the connecting element connects the heads of the fastening elements to one another, the contact surface can also be enlarged.

The multiple assemblies are preferably identical.

The invention also relates to a hinge for the pivotable connection of a wing of a door or a window to a frame, the hinge comprising a fitting part with a perforation and an arrangement according to one of claims 1 to 9 and the fixing screw reaching through the perforation.

An exemplary embodiment of the invention is explained in more detail below with reference to the figures. They show schematically:

1 shows an arrangement according to the invention, which comprises two assemblies, in a perspective exploded view; 2a to 2d show four side views of the fastening elements of the arrangement shown in FIG. 1, pushed together to different extents;

Figure 3 is a view as in Figure 2d, with the fasteners shown translucent;

4 shows a cross-sectional illustration of an arrangement according to the invention in the mounted state on a hollow profile for fastening a fitting part;

FIG. 5 shows a larger-scale perspective representation of two fastening elements shown in FIG. 1 of two assemblies; FIG.

Figure 6 is a top plan view of the fasteners shown in Figure 5;

Figure 7 is a side view of the fasteners shown in Figure 5;

FIG. 8 shows a front view of the fastening elements shown in FIG. 5. FIG.

The telescoping arrangement identified as a whole by 100 in the figures is used for attachment to a hollow profile H of a frame or leaf of a door or window, not shown in the figures.

The telescoping arrangement 100 shown comprises an assembly B, which has two fastening elements 1, 1' and a fixing screw 2.

More precisely, the arrangement shown comprises exactly two assemblies B, B', which are connected to one another. Since both assemblies are in the shown example are identical, the following description is initially limited to a single assembly B.

As can best be seen in FIGS. 3, 4 and 5, the fastening elements 1, 1' of the assembly B each have exactly one part-round recess 4, 4' with an internally threaded section 5, 5'. In the assembled state of the assembly B, this acts together with a region of the external thread 3 of the fixing screw 2 which extends over part of the circumference U--approximately half in the exemplary embodiment shown. The internally threaded sections 5, 5' of the two fastening elements 1, 1' of assembly B together form a slotted threaded bore for the fixing screw 2.

As shown in FIGS. 2a to 2d, fastening elements 1, 1' can be pushed into one another over part of their length A, A', resulting in an overall length C of fastening elements 1, 1' that can be selected.

As shown in Fig. 4, for example, the fixing screw 2 engages in the assembled state M in the internally threaded sections 5, 5' of both fastening elements 1, 1' of the assembly B and fixes both fastening elements 1, 1' in the selected overall length C (see Fig. 4). The fastening elements 1, 1' are thus each fixed by the interaction of their internally threaded section 5, 5' with the fixing screw 2 in the longitudinal direction of the fixing screw 2 relative to the latter and thus also relative to the respective other fastening element 1, 1' at the desired distance therefrom. This fixation of the two fastening elements 1, 1' relative to one another takes place without the fastening screw 2 causing tensile forces which act between the fastening elements 1, 1' and tend to reduce the distance between the fastening elements 1, 1'.

In the exemplary embodiment shown, the arrangement 100 serves to fasten a fitting part 11 to a hollow profile H of a frame or sash, not shown in the figures, of a door or a window, not shown in the figures. The fitting 11 is a fitting of a band 100, not shown in the figures, for pivotally fastening the leaf of a door or window to the frame. In the assembled state M of the exemplary embodiment shown, the fixing screw passes through a hole 12 in the fitting part 11 and fulfills two tasks: on the one hand, it fixes the two fastening elements 1, 1' relative to one another and, on the other hand, it clamps the fitting part 11 against the fastening element 1 and fastens the fitting part 11 and thus the band thereby to the hollow profile H (see Fig. 4).

In the exemplary embodiment shown, the fastening elements 1, 1' each have exactly one extension 6, 6' and exactly one recess 7, 7'. In the assembled state M of the arrangement 100, the extension 6, 6' of a fastening element 1, 1' is at least partially arranged in the recess 7, 7' of the other fastening element 1, 1' and vice versa (see Fig. 4), the two fastening elements 1 , 1 'interlock in the assembled state M.

Figures 1, 4 and 5 also show that the recess 7, 7' of a fastening element 1, 1' has a shape and size complementary to the extension 6, 6' of the other fastening element 1, 1' and the extension 6, 6' of one fastening element 1, 1' is arranged in the recess 7, 7' of the other fastening element 1, 1' with at most slight play.

Figures 4 and 5, for example, show that the partially round recess 4, 4' and the internally threaded section 5, 5' in both fastening elements 1, 1' of assembly B in the exemplary embodiment shown extend over a wall of the recess 18 and a wall of the extension 19 extend and that these walls 18, 19 are at least almost in a common plane which runs parallel to the longitudinal extension L of the fixing screw 2.

Because the internal thread sections 5, 5' only interact with a portion of the external thread 3 of the fixing screw 2 that extends over part of the circumference U, they can, as shown in FIG of the fixing screw 2 and in relation to the longitudinal extension L of the fixing screw 2 can be arranged at least partially at the same height. The two fasteners 1, 1 'of the assembly B are identical in the embodiment shown and the length variability of the arrangement, so the difference between the longest and the shortest selectable total length C is about 15-20 mm.

The fastening elements 1, 1' each have a head 10, 10' on their end remote from the extension 6, 6'. As shown in FIGS. 2d and 4, the head 10, 10' provides an annular contact surface 17, 17' for external contact with the hollow profile H. At least the head 10 of one of the two fastening elements 1 has a bore 13 for receiving and Guide the fixing screw 2, see for example Figures 1, 4 and 6.

As can be seen from Fig. 4, for example, the arrangement 100 for attachment to a hollow profile H is provided in such a way that the fastening elements 1, 1' can be inserted into holes 16, 16' in spaced profile walls of the hollow profile H until the contact surfaces 17, 17′ of their heads 10, 10′ rest against the hollow profile H from the outside and can then be fixed by the fixing screw 2 at this distance from one another.

It can be seen in particular from FIGS. 5 to 8 that the fastening elements 1, 1′ each have a cylindrical area 8, 8′ and a part-cylindrical area 9, 9′ and the recess 7, 7′ is arranged in the cylindrical area 8, 8′ is. The part-cylindrical area 9, 9' provides the extension 6, 6'.

The fixing screw engages axially in both cylindrical areas 8, 8' of the fastening elements 1, 1' (see FIG. 4).

As shown, for example, in FIGS. 5 and 7, the extension 6, 6′ originates from the cylindrical area 8, 8′ next to the recess 7, 7′. The part-round recess 4, 4' of the fastening elements 1, 1' extends in the exemplary embodiment shown both over the cylindrical area 8, 8' and over the part-cylindrical area 9, 9'.

The cylindrical portion 8, 8' has the head 10, 10' at one end and the opening 14 of the recess 7, 7' at the other end (see Figure 5 approximately).

Since the arrangement 100 shown comprises two subassemblies B, B' and a fastening element 1, 1' of one subassembly B is connected to a fastening element 1', 1''' of the other subassembly B' by means of a connecting element 15, 15' (see, for example, Fig. 1), this results in a particularly simple and effective way of preventing a fastener from turning unintentionally when the fixing screw is screwed in.

The connecting element 15, 15' connects the heads 10, 10', 10'', 10''' of the fastening elements 1, 1', 1'', 1''' of the two assemblies B, B' to one another and increases in size in this way the contact surface 17, 17'.

reference list:

100 Telescopic arrangement

1, 1 1", 1' fasteners

2 fixing screw

3 external threads

4, 4' part-round recess

5, 5' female thread section

6, 6' appendix

7, 7' recess

8, 8' cylindrical area

9, 9' part-cylindrical area

10, 10' head

11 fitting part of the band

12 hole in the fitting

13, 13' hole of head

14 opening

15, 15' connecting element

16, 16' holes of the hollow profile

17, 17' Annular bearing surface

18 wall of recess

19 wall of the process

A, A ' Length of a fastener

B, B' assembly

C Overall length of fasteners

H hollow profile

L Longitudinal extension of the fixing screw

M mounted condition

U Circumference of the fixing screw

Claims

Claims: Telescopic arrangement (100) for attachment to a hollow profile (H) of a frame or leaf of a door or window, with an assembly (B) having two fastening elements (1, 1 ') and a perimeter (U) and a Longitudinal extent (L) having a fixing screw (2) with an external thread (3), characterized in that the fastening elements (1, 1 ') each comprise a part-round recess (4, 4'), and the part-round recess (4, 4' ) at least when the assembly (B) is assembled, has an internally threaded section (5, 5') which cooperates with an area of the external thread (3) of the fixing screw (2) that extends over part of the circumference (U). Arrangement according to Claim 1, characterized in that the fastening elements (1, 1') each have a length (A, A') and can be pushed into one another over part of their length (A, A'), so that an overall length (C) of the fastening elements (1, 1'), which can be selected, and the fixing screw (2) engages in both fastening elements (1, 1') in the assembled state and fixes them in the selected overall length (C). Arrangement according to Claim 1 or 2, characterized in that the fastening elements (1, 1') each have an extension (6, 6') and a recess (7, 7') and the extension (6, 6') of a fastening element ( 1, 1') in the mounted state of the arrangement (100) is at least partially arranged in the recess (7, 7') of the other fastening element (1, 1') and vice versa. Arrangement according to Claim 3, characterized in that the part-round recess (4, 4') and the internally threaded section (5, 5') each extend over a wall of the recess (18) and a wall of the extension (19). Arrangement according to Claim 3 or 4, characterized in that the fastening elements (1, 1') each have a cylindrical area (8, 8') and a part-cylindrical area (9, 9') and the recess (7, 7') in is arranged in the cylindrical area (8, 8') and the part-cylindrical area (9, 9') provides the extension (6, 6'). Arrangement according to Claim 5, characterized in that one of the two fastening elements (1, 1') has a longer extension (6, 6') and/or a longer cylindrical region (8, 8') than the other fastening element. Arrangement according to one of Claims 3 to 6, characterized in that the fastening elements (1, 1') each have a head (10, 10') at their end remote from the extension (6, 6'). Arrangement according to one of Claims 1 to 7, characterized in that the internally threaded sections (5, 5') of the fastening elements (1, 1') in the assembled state (M) of the arrangement (100) are on opposite sides of the fixing screw (2) and are arranged at least partially at the same height in relation to the longitudinal extent (L) of the fixing screw (2). Arrangement according to one of Claims 1 to 8, characterized in that the arrangement (100) comprises two identical assemblies (B, B') and a fastening element (1, 1') of an assembly (B) with a fastening element (1'', 1''') of the other assembly (B') by means of a connecting element (15, 15'). Hinge for the pivotable connection of a leaf of a door or a window with a frame, wherein the hinge comprises a fitting part (11) with a perforation (12) and an arrangement (100) according to one of claims 1 to 9 and the fixing screw (2) the Hole (12) penetrates.