Extension device for mounting to a hollow profile on a frame or wing of a door or window

Abstract

The invention relates to a telescopic device (100) for mounting on a hollow profile (H) of a frame or wing of a door or window, said telescopic device having an assembly (B) comprising two fixing elements (1, 1') and a fastening screw (2) having a circumference (U) and a longitudinal extent (L) and having an outer thread (3), wherein the fixing elements (1, 1') each comprise a partially circular recess (4, 4'), and the partially circular recesses (4, 4') have at least in the assembled state of the assembly (B) an internally threaded section (5, 5') which cooperates with a region of the outer thread (3) of the fastening screw (2) which extends over a portion of the circumference (U).

Description

TECHNICAL FIELD

[0001] The invention relates to a telescopic device for mounting onto a hollow profile of a frame or leaf of a door or window, said telescopic device having an assembly comprising two fixing elements and a fastening screw having a circumference and a longitudinal extent and being externally threaded. BACKGROUND

[0002] Such devices are known, for example, from EP 1 223 274 B1, wherein the fixing elements are configured as sleeves which are tensioned against each other by means of the fastening screw.

[0003] The disadvantage of the known devices is that they subject the hollow profiles to forces acting between the fixing elements, which can lead to deformation of the hollow profiles and / or make them difficult to assemble. SUMMARY

[0004] It is therefore an object of the invention to provide a device which improves at least one of the above-mentioned disadvantages.

[0005] This object is achieved by a telescopic device for mounting onto a hollow profile of a frame or leaf of a door or window, said telescopic device having an assembly comprising two fixing elements and a fastening screw having a circumference and a longitudinal extent and being externally threaded, wherein the fixing elements each comprise a partially circular recess and the partially circular recess has at least in the assembled state of the assembly an internally threaded section which cooperates with an area of the externally threaded of the fastening screw extending over a portion of the circumference, characterized in that the fixing elements each have a length and can be plugged into each other over a portion of their length, thereby obtaining a selectable total length of the fixing elements, and the fastening screw engages in both fixing elements in the assembled state and fixes the two fixing elements at the selectable total length.

[0006] Thus, the internally threaded sections of the two fixing elements of one assembly cooperate with the externally threaded of the same fastening screw.

[0007] Preferably, the fixing elements of one assembly are plugged into each other in the assembled state.

[0008] In the context of this document, the term "telescopic" means variable in length, preferably while maintaining the plugging of the two fixing elements of one assembly into each other.

[0009] The telescopic nature is preferably achieved in such a way that the fixing elements of one assembly can be plugged into each other over a portion of their length, preferably in such a way that a selectable total length of the fixing elements is obtained.

[0010] The fastening screws are preferably engaged in two fixing elements in the assembled state, and more preferably fixed with a selected total length.

[0011] Due to its variable length, a single device can preferably be installed on hollow profiles of different thicknesses, thereby reducing the number of different types of fixing elements required for hollow profiles of different thicknesses.

[0012] The length variability, or the difference between the longest and shortest selectable total length, is preferably about 15-20 mm. For example, the same device can be used for profiles with a thickness between 100 mm and 120 mm for a length variability of 20 mm.

[0013] Preferably, the partially circular recess of a single fastening element does not itself provide a full-circumferential hole into which the fastening screw engages. Instead, the partially circular recess, with its internal threaded portion, abuts against the external thread of the fastening screw only on a portion of the circumference of the fastening screw. This portion of the circumference can be approximately one-eighth, one-quarter, or one-half of the circumference.

[0014] Preferably, the internal threaded section of the retaining element of the assembly extends generally over at least almost the entire circumference of the external thread constituting the fastening screw. Preferably, the internal threaded sections of the two retaining elements together form a slotted threaded hole for the fastening screw. This allows for load-bearing thread engagement of the fastening screw in the threaded section.

[0015] The fixing element may each have exactly one or more, for example two or four, partially circular recesses with internal threaded sections.

[0016] Preferably, the fastening screw engages in the internal threaded portion of the fixing element. Preferably, the fixing element is secured relative to the fastening screw and thus also relative to the corresponding other fixing element at a desired distance in the longitudinal direction of the fastening screw, through the combined action of its internal threaded portion and the fastening screw. This securing of the two fixing elements is preferably relative to each other, and at the same time, the fastening screw does not cause tensile forces acting between the fixing elements and tending to reduce the distance between them. This allows for unloading of the hollow profile and prevents deformation of the hollow profile.

[0017] The device can be used solely for stabilizing hollow profiles. Preferably, the device is used to secure the fitting to the hollow profile of a door or window frame or sash. The device can also preferably be called a fixing device, and more preferably, the fastening screw can also be called a fixing screw. The fastening screw then preferably passes through a hole in the fitting and performs two tasks: on the one hand, the fastening screw secures two fixing elements relative to each other, and on the other hand, the fastening screw tensions the fitting relative to the fixing elements and / or the hollow profile, thereby securing the fitting to the sash or frame. The fitting is preferably a hinge fitting for rotatably securing a door or window sash to the frame.

[0018] Preferably, the fixing elements each have a protrusion and a gap, and in the assembled state of the device, the protrusion of one fixing element is at least partially disposed in the gap of the other fixing element, and vice versa. Therefore, preferably, the two fixing elements are interlocked with each other in the assembled state.

[0019] The gap of one fixing element preferably has a shape and size complementary to the protrusion of the other fixing element. Preferably, the protrusion of one fixing element is arranged in the gap of the other fixing element with at most a small gap. In this way, it prevents the protrusion of the fastening screw from "misaligning" during assembly and hindering the fastening of the fixing elements from being secured to each other, as well as the load-bearing thread engagement of the fastening screw in the threaded section.

[0020] Preferably, the partially circular recesses in the fixing elements of the assembly extend on the walls of the gaps and the protrusions of the individual fixing elements, respectively.

[0021] In one embodiment, the internally threaded section in at least one of the fixing elements of the assembly extends only on the wall of the gap, and not on the wall of the protrusion.

[0022] In another embodiment, the internally threaded segments in the fastening elements of the assembly extend on the walls of the gaps in the individual fastening elements, and more preferably on the walls of the protrusions. Thus, the internally threaded segments can be constructed to be particularly long, and the fastening screws can work in conjunction with the internally threaded segments over such a long length, thereby transmitting particularly large forces from the fastening screws to the fastening elements.

[0023] Preferably, the wall extending from the partially circular recess of the gap extends parallel to the longitudinal extension dimension of the fastening screw in the assembled state of the device.

[0024] Preferably, the wall extending from the partially circular recess of the protrusion extends parallel to the longitudinal extension dimension of the fastening screw in the assembled state of the device.

[0025] Preferably, the walls extending therefrom the partially circular recess of the gap and the walls extending therefrom the partially circular recess of the protrusion are at least almost in a common plane.

[0026] However, the internal threaded section may also extend only on the wall of the gap of one fixing element and the wall of the protrusion of the other fixing element, especially when the fastening screw is constructed as a short self-tapping screw.

[0027] In one conceivable embodiment, one of the two fastening elements has a longer protrusion and / or cylindrical region than the other. Therefore, the device preferably comprises two different types of fastening elements. In this way, it is possible to effortlessly guarantee usability on profiles with significantly different thicknesses. For thinner profiles, two identical fastening elements with shorter protrusions and / or cylindrical regions can be used; for medium-thickness profiles, one of the two fastening elements can have a longer protrusion and / or cylindrical region than the other, i.e., different fastening elements can be used; and for very thick profiles, two identical fastening elements with longer protrusions and / or cylindrical regions can be used. The fastening screw can be constructed shorter for thinner profiles than for medium-thickness and very thick profiles. For example, three different screw lengths can be used.

[0028] In another implementation, the two fixing elements of a component are identical.

[0029] Preferably, the fixing element has a cylindrical region and a partially cylindrical region, and the gap is arranged in the cylindrical region, and the partially cylindrical region provides the protrusion.

[0030] Preferably, the fastening screw engages axially with the cylindrical region of at least one fastening element, and thus may also be referred to as the central fastening screw.

[0031] Preferably, the fixing element has a head at its end opposite to the protrusion.

[0032] Preferably, the head provides a preferred annular contact surface for external contact with the hollow profile. This head ensures high load-bearing capacity of the device. Preferably, at least one individual fixing element has an orifice for receiving and guiding the fastening screw.

[0033] Preferably, the cylindrical region has the head at one end and the opening of the gap and the protrusion at the other end.

[0034] Preferably, the protrusion begins in the cylindrical region next to the gap.

[0035] The fixing element may each have exactly one or more, for example, two or four protrusions. The fixing element may each have exactly one or more, for example, two or four gaps.

[0036] Preferably, the concave portions of the partially circular shape of the fixing element extend both on its cylindrical region and on its partially cylindrical region.

[0037] If the fixing elements of a component are constructed as separate elements, this creates the prerequisite for the device to be configured for through-mounting onto a hollow profile of a door or window frame or sash. Preferably, the device for through-mounting onto the hollow profile is configured such that the fixing elements of a component can be inserted from opposite sides into holes in the spaced-apart profile walls of the hollow profile for assembly, until their abutting surfaces externally abut against the hollow profile from opposite sides, and subsequently secured relative to each other at that distance by the fastening screws.

[0038] Preferably, the internally threaded portion of the retaining element of a component is arranged on the opposing sides of the fastening screw in the assembled state of the device to form a slotted threaded hole for the fastening screw. Preferably, the internally threaded portion of the retaining element of a component is arranged at least partially at the same height relative to the longitudinal extension dimension of the fastening screw in the assembled state of the device.

[0039] Preferably, the internal threaded portion extends in the direction of the longitudinal extension dimension of the fastening screw more than twice the diameter of the fastening screw, and more preferably less than 20 times the diameter of the fastening screw.

[0040] The fixing elements may, for example, comprise aluminum and / or plastic and / or zinc die-cast parts. Preferably, the fixing elements are integrally constructed.

[0041] Preferably, the fastening screw is a self-tapping screw. Preferably, the fastening screw itself forms a thread in the internal threaded portion of the fixing element of the assembly when it is screwed in. However, the thread in the internal threaded portion may also be pre-cut and the fastening screw may be non-self-tapping.

[0042] It is conceivable that the screw is a self-drilling screw. In this embodiment, the fastening screw preferably forms a partially circular recess itself, together with the threads of the internal threaded portion of the fixing element of the assembly, when screwed in.

[0043] If the telescopic device comprises multiple, preferably exactly two, components, and the fixing element of one component is connected to the fixing element of the other component by means of a connecting element, this achieves a particularly simple and effective prevention of the fixing element from unintentionally rotating when the fastening screw is screwed in.

[0044] If the connecting element connects the heads of the fixing element to each other, the contact surface can also be enlarged.

[0045] Preferably, the plurality of components are identical.

[0046] The present invention also relates to a hinge for rotatably connecting a sash of a door or window to a frame, wherein the hinge includes a fitting having an opening and the aforementioned device, and the fastening screw passes through the opening. Attached Figure Description

[0047] Embodiments of the invention will now be explained in more detail with reference to the accompanying drawings. These are shown schematically:

[0048] Figure 1 An exploded perspective view illustrates an apparatus according to the invention, which comprises two components;

[0049] Figures 2a to 2d It shows Figure 1 The four side views of the fixing element of the device shown are shown, which are inserted to different degrees;

[0050] Figure 3 Is it like this? Figure 2d The view in which the fixed element is displayed as semi-transparent;

[0051] Figure 4 A cross-sectional view of the device according to the invention is shown in a state of assembly onto a hollow profile for fixing fittings;

[0052] Figure 5 The two components are shown in Figure 1 Perspective view of the two fixed elements shown in the enlarged scale;

[0053] Figure 6 yes Figure 5 Top view of the fixing element shown;

[0054] Figure 7 yes Figure 5 Side view of the fixing element shown;

[0055] Figure 8 yes Figure 5 The front view of the fixed element shown. Detailed Implementation

[0056] The telescopic device, generally indicated by 100 in the accompanying drawings, is used for installation onto the hollow profile H of the frame or wing of a door or window (not shown in the drawings).

[0057] The telescopic device 100 shown includes component B, which has two fixing elements 1, 1' and a fastening screw 2.

[0058] More precisely, the illustrated device comprises exactly two interconnected components B, B'. Since the two components are identical in the illustrated embodiment, the following description is limited to the single component B for the time being.

[0059] As in Figure 3 , Figure 4 and Figure 5 As can be best seen, the retaining elements 1 and 1' of component B each have exactly one partially circular recess 4 and 4' with internally threaded segments 5 and 5'. In the assembled state of component B, the internally threaded segments 5 and 5' interact with the area of ​​the external thread 3 of the fastening screw 2, which extends over a portion of the circumference U, approximately half in the illustrated embodiment. The internally threaded segments 5 and 5' of the two retaining elements 1 and 1' of component B together form a slotted threaded hole for fastening screw 2.

[0060] like Figures 2a to 2d As shown, fixing elements 1 and 1' can be interlocked with each other on a portion of their lengths A and A' to obtain a total length C of fixing elements 1 and 1', which is optional.

[0061] like Figure 4 As shown, for example, in the assembled state M, the fastening screw 2 engages in the internal threaded sections 5 and 5' of the two fixing elements 1 and 1' of component B, and the fastening screw 2 secures the two fixing elements 1 and 1' by a selected total length C (see [reference]). Figure 4 Therefore, the fixing elements 1 and 1' are fixed relative to the fastening screw 2 in the longitudinal direction of the fastening screw 2, and thus also relative to the corresponding other fixing element 1 and 1', at a desired distance, through the combined action of their internal threaded sections 5 and 5' with the fastening screw 2. This fixing of the two fixing elements 1 and 1' relative to each other is achieved without the fastening screw 2 causing a tensile force acting between the fixing elements 1 and 1' and tending to reduce the distance between the fixing elements 1 and 1'.

[0062] In the illustrated embodiment, device 100 is used to secure fitting 11 to a hollow profile H of a door or window frame or sash (not shown in the figures). Fitting 11 is an accessory to hinge 100 (not shown in the figures) for rotatably securing the sash of the door or window to the frame.

[0063] In the assembly state M of the illustrated embodiment, the fastening screw passes through the opening 12 of the fitting 11 and performs two tasks: on the one hand, the fastening screw secures the two fixing elements 1, 1' relative to each other; on the other hand, the fastening screw tensions the fitting 11 relative to the fixing element 1 and secures the fitting 11, and thus the hinge, to the hollow profile H (see [reference]). Figure 4 ).

[0064] In the illustrated embodiment, the fixing elements 1 and 1' each have exactly one protrusion 6 and 6' and exactly one gap 7 and 7'. In the assembled state M of the device 100, the protrusions 6 and 6' of the fixing elements 1 and 1' are at least partially arranged in the gaps 7 and 7' of the other fixing element 1 and 1', and vice versa (see [link]). Figure 4 Two fixed components 1 and 1' are plugged into each other in the assembled state M.

[0065] For example Figure 1 , Figure 4 and Figure 5 It can also be seen that the gaps 7 and 7' of one fixing element 1, 1' have shapes and sizes that are complementary to the protrusions 6 and 6' of the other fixing element 1, 1', and the protrusions 6 and 6' of one fixing element 1, 1' are arranged in the gaps 7 and 7' of the other fixing element 1, 1' with at most a tiny gap.

[0066] For example Figure 4 and Figure 5 As can be seen in the illustrated embodiment, the partially circular recesses 4, 4' and internally threaded segments 5, 5' in the two fixing elements 1, 1' of component B extend on the wall 18 of the gap and the wall 19 of the protrusion, respectively, and these walls 18, 19 are at least almost in a common plane extending parallel to the longitudinal extension dimension L of the fastening screw 2.

[0067] By having internal thread sections 5 and 5' interacting only with the area of ​​the external thread 3 of the fastening screw 2 extending on a portion of the circumference U, the internal thread sections 5 and 5' can thus... Figure 4 As shown, in the assembled state of the device 100, the fastening screws 2 are arranged at at least partially at the same height on the opposing sides of the fastening screws 2 and relative to the longitudinal extension dimension L of the fastening screws 2.

[0068] The two fixing elements 1 and 1' of component B are identical in the illustrated embodiment, and the length of the device is variable, i.e., the difference between the longest and shortest selectable total length C is approximately 15-20 mm.

[0069] The fixing elements 1 and 1' each have a head 10 and 10' at their ends opposite to the protrusions 6 and 6', respectively. For example... Figure 2d andFigure 4 As shown, the heads 10, 10' provide annular abutment surfaces 17, 17' for external abutment against the hollow profile H. The head 10 of at least one of the two fastening elements 1 has an aperture 13 for receiving and guiding the fastening screw 2, see, for example, [reference needed]. Figure 1 , Figure 4 and Figure 6 .

[0070] For example from Figure 4 As can be seen, the device 100 for through-mounting onto the hollow profile H is configured such that the fixing elements 1, 1' can be inserted into the holes 16, 16' in the spaced profile wall of the hollow profile H for installation, until the abutting surfaces 17, 17' of the heads 10, 10' of the fixing elements 1, 1' abut against the hollow profile H from the outside, and then can be fixed relative to each other at that distance by fastening screws 2.

[0071] Especially from Figures 5 to 8 As can be seen, the fixing elements 1 and 1' each have cylindrical regions 8 and 8' and partially cylindrical regions 9 and 9', and the gaps 7 and 7' are arranged in the cylindrical regions 8 and 8'. The partially cylindrical regions 9 and 9' provide protrusions 6 and 6'.

[0072] The fastening screws are axially engaged in the two cylindrical regions 8 and 8' of the fixing elements 1 and 1' (see...). Figure 4 ).

[0073] For example Figure 5 and Figure 7 As shown, the protrusions 6 and 6' begin in the cylindrical regions 8 and 8' next to the gaps 7 and 7'.

[0074] In the illustrated embodiment, the partially circular recesses 4 and 4' of the fixing elements 1 and 1' extend both on the cylindrical regions 8 and 8' and on the partially cylindrical regions 9 and 9', respectively.

[0075] The cylindrical regions 8, 8' have the heads 10, 10' at one end and the openings 14 of the gaps 7, 7' at the other end (see, for example, the openings 14 of the gaps 7, 7'). Figure 5 ).

[0076] Since the illustrated device 100 includes two components B, B', and the fixing elements 1, 1' of one component B are connected to the fixing elements 1”, 1”' of the other component B' by means of connecting elements 15, 15' (see, for example, see...) Figure 1 Therefore, it is particularly simple and effective to prevent the fixing element from rotating unintentionally when screwing in the fastening screw.

[0077] Connecting elements 15 and 15' connect the heads 10, 10', 10" and 10"' of the fixing elements 1, 1', 1"' of the two components B and B' to each other, thereby increasing the contact surface 17 and 17'.

[0078] List of reference numerals

[0079] 100 Telescopic device

[0080] 1, 1', 1”, 1”' Fixing elements

[0081] 2 Fastening screws

[0082] 3 External threads

[0083] 4. The circular concave part of 4'

[0084] 5. 5' Internal Thread Section

[0085] 6, 6' protrusion

[0086] 7' gap

[0087] 8, 8' cylindrical area

[0088] 9, 9' partial cylindrical area

[0089] 10, 10' head

[0090] 11. Hinge accessories

[0091] 12. Openings for accessories

[0092] 13, 13' Head opening

[0093] 14 Opening

[0094] 15, 15' connecting elements

[0095] Holes in 16' and 16' hollow profiles

[0096] 17' 17' circumferential contact surface

[0097] 18. The wall of the gap

[0098] 19. Wall of the protrusion

[0099] The lengths of fixed components A and A'

[0100] B and B' components

[0101] C. Total length of the fixed element

[0102] H hollow profile

[0103] L represents the longitudinal extension dimension of the fastening screw.

[0104] M Assembly status

[0105] U-shaped fastening screw circumference

Claims

1. A telescopic device (100) for mounting to a hollow profile (H) of a door or window frame or sash, the telescopic device (100) having an assembly (B) comprising two fixing elements (1, 1') and a fastening screw (2) having a circumferential (U) and a longitudinal extension dimension (L) and having external threads (3), wherein, The fixing elements (1, 1') each include a partially circular recess (4, 4'), and the partially circular recess (4, 4') has an internally threaded portion (5, 5') at least in the assembled state of the assembly (B). The internally threaded portion (5, 5') interacts with the external thread (3) of the fastening screw (2) extending over a portion of the circumference (U). The fixing elements (1, 1') each have a length (A, A') and are interlocked with each other over a portion of their lengths (A, A'), thereby obtaining the fixing elements ( The device (100) has a selectable total length (C) of 1, 1'), and the fastening screw (2) engages in the two fixing elements (1, 1') in the assembled state and fixes the two fixing elements with a selectable total length (C), characterized in that the fixing elements (1, 1') have protrusions (6, 6') and gaps (7, 7') respectively, and the protrusions (6, 6') of one fixing element (1, 1') are at least partially arranged in the gaps (7, 7') of the other fixing element (1, 1') in the assembled state of the device (100), and vice versa.

2. The telescopic device (100) according to claim 1, characterized in that, The partially circular recesses (4, 4') and the internally threaded sections (5, 5') extend on the wall (18) of the gap and the wall (19) of the protrusion, respectively.

3. The telescopic device (100) according to claim 1 or 2, characterized in that, The fixing elements (1, 1') each have a cylindrical region (8, 8') and a partially cylindrical region (9, 9'), and the gaps (7, 7') are arranged in the cylindrical regions (8, 8'), and the partially cylindrical regions (9, 9') provide the protrusions (6, 6').

4. The telescopic device (100) according to claim 3, characterized in that, One of the two fixing elements (1, 1') has a longer protrusion (6, 6') and / or a longer cylindrical region (8, 8') than the other fixing element.

5. The telescopic device (100) according to claim 1 or 2, characterized in that, The fixing elements (1, 1') each have a head (10, 10') at their ends opposite to the protrusions (6, 6').

6. The telescopic device (100) according to claim 1 or 2, characterized in that, The internal threaded sections (5, 5') of the fixing elements (1, 1') are arranged at at least partially at the same height on the opposing sides of the fastening screws (2) and relative to the longitudinal extension dimension (L) of the fastening screws (2) in the assembled state (M) of the device (100).

7. The telescopic device (100) according to claim 1 or 2, characterized in that, The device (100) includes two identical components (B, B'), and the fixing element (1, 1') of one component (B) is connected to the fixing element (1”, 1”') of the other component (B') by means of a connecting element (15, 15').

8. A hinge for rotatably connecting a sash of a door or window to a frame, wherein the hinge comprises a fitting (11) having an opening (12) and a device (100) according to any one of claims 1 to 7, and the fastening screw (2) passes through the opening (12).

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