WO2008141867A1

WO2008141867A1 - Device and method for attaching fittings to mounting walls of single-chamber profiles

Info

Publication number: WO2008141867A1
Application number: PCT/EP2008/054269
Authority: WO
Inventors: Markus Lenze
Original assignee: Dr. Hahn Gmbh & Co. Kg
Priority date: 2007-05-22
Filing date: 2008-04-09
Publication date: 2008-11-27
Also published as: DE102007024082B3

Abstract

The invention relates to a device and method for attaching fittings to mounting walls (4) of single-chamber profiles (1), having a mounting means (5), and having an attachment profile part (11) which can be inserted into the single-chamber profile (1) and which has at least one engaging wall (12, 13) separated from the mounting wall (4), wherein the mounting means (5) engages with the engaging wall (12, 13).

Description

Apparatus and method for mounting fittings on mounting walls of single-chamber profiles

The invention relates to a device and a method for fastening fitting parts on mounting walls of single-chamber profiles.

By "single-chamber profile" is meant profiles or profile arrangements in which only one wall - the mounting wall - is available for engagement of a mounting means for the fitting part should not be penetrated by the mounting means, or act to a U-profile.

In such profiles, there is regularly the problem that the strength of the mounting wall alone is insufficient to accommodate the insertion forces introduced by the mounting means for the fitting part. In particular, if the mounting means are screws or rivets, the forces acting on the mounting wall when the fitting part is loaded are quickly so great that rivets or screws tear out of the mounting wall. From DE 21 64 834 A, a device for mounting fittings on mounting walls of Einkammerprofilen is known, which include Blindschraubmittel with a Spreizrohrzapfen, a clamping screw and a sleeve. The shafts of Spreizrohrzapfen fit into holes in the fittings and are anchored in these by clamping means, such as a screw. The sleeves are cup-shaped and have a threaded bore in the bottom and longitudinal walls in the jacket wall. They are displaced by the associated clamping screws along the Spreizrohrzapfen and spread as permanent deformation such that they support the front end in the inserted state against the associated fitting part facing wall surface of the profile wall.

Although in this profile wall, the holding forces of the fitting part are introduced over a larger area than in screws or rivets in the mounting wall, so that this device is suitable for introducing greater holding forces in the profile, but it is disadvantageous that deforms the mounting wall at larger holding forces. Furthermore, due to the plastic deformation of Spreizrohrzapfens a once mounted Blindschraubmittel can not be completely removed from the profile.

From GB 2 069 577 A, a further device for mounting fittings on mounting walls of single-chamber profiles is known. It comprises a fastening profile part which can be introduced into the single-chamber profile and has an engagement wall for fastening screws which serve to assemble the fitting part. The fastening profile part is designed in such a way that the engagement wall lies flat against the wall surface of the profile wall facing away from the associated fitting part.

Although in this device holding forces are in turn introduced into the mounting wall over a larger area than with screws or rivets, it is disadvantageous that the mounting wall also deforms with larger holding forces in this device as well.

The invention is based on the object, an apparatus and a method for fastening fittings on mounting walls of Einkammerprofilen to create, which allows the introduction of particularly high holding forces in Einkammerprofile while avoiding deformation of the mounting wall.

This object is achieved by the device reproduced in claim 1 and the reproduced in claim 15 method.

According to the invention, the device has a fastening profile part which can be introduced into the single-chamber profile and which has at least one engagement wall which is at a distance from the mounting wall and into which the mounting means engages in the inserted state. In the apparatus according to the invention, the holding forces are thus not taken up solely by the mounting wall of the single-chamber profile, but additionally by the fastening profile part. Since the engagement wall is spaced from the mounting wall, deformations of the mounting wall which would be accompanied by tilting of the mounting means are prevented.

If the engagement wall of the fastening profile part - as preferred - has approximately the same properties as the mounting wall of the single-chamber profile, only the same measures have to be taken to effect the engagement of the mounting means in the engagement wall as for engagement in the mounting wall. Additional tools for the preparation of the device according to the invention, as they are necessary, for example, when reinforcing plates are introduced into the profile to increase fastening forces are therefore not required.

As mounting means, all components are considered, which are positively engageable in the insertion direction with the mounting and / or the Eingriffswandung. However, particularly preferred is an embodiment of the device according to the invention, in which the mounting means is a mounting screw with an external thread and mounting engagement surfaces. It is understood that the length of the mounting screw is matched to the distance between the mounting wall and the engagement wall, that it also passes through the Eingriffswandung in the inserted state.

The mounting screw may comprise a bore extending in its longitudinal axis from the abutment arranged at the rear end, into which hole a fastening can be introduced, for example, a fastening screw, which passes through the fitting part. The investment bond is in this embodiment in the mounted state on the mounting wall. In this embodiment, the fitting part can be disassembled without having to remove the mounting means for this purpose.

Or the mounting means also penetrates the fitting part, so that the system collar presses the fitting part against the mounting wall.

The introduction of the mounting means, in particular when it is designed as a mounting screw, is facilitated if - as preferred - the at least one engagement wall extends approximately parallel to the mounting wall.

The Eingriffswandung can be kept in the single-chamber profile in a simple manner at a distance from the mounting wall when it extends between at least two side walls of the fastening profile part. The side walls are then supported on the inside of the mounting wall.

Particularly preferred is an embodiment of the device according to the invention, in which the fastening profile part is adapted to the single-chamber profile, that at least one side wall at least partially abuts against a lateral wall of the Einkammerprofils in the inserted state of the fastening profile part. The fastening profile part introduced into the single-chamber profile is then supported particularly effectively against lateral tilting, so that the risk of deformation of the mounting wall under high load is reduced again.

In order to facilitate the assembly of the fitting part by means of the device according to the invention, in a particularly preferred embodiment, the latter has positioning means by means of which the fastening profile part can be positioned after insertion into the single-chamber profile. Due to this development reduces the risk that the introduced into the single-chamber profile mounting profile part moves automatically before the mounting means is introduced. The position iermittel can in a first variant, an acting between the fastening profile part and the single-chamber profile elastic element, for example a clamping spring comprise.

In a further variant, the positioning means additionally or alternatively comprise at least one fastening means which can be brought into positive engagement with a lateral wall of the single-chamber profile and a side wall of the fastening profile part, for example a rivet or a preferably self-tapping screw.

Is - as preferred - the mounting member designed as a mounting screw, so its external thread is preferably a complementary internal thread self-generating thread.

The external thread of the mounting screw can be designed for this purpose as a self-tapping thread. It is particularly preferred, however, if the core diameter of the external thread is designed to be decreasing at approximately constant flank height in the direction of insertion of the mounting screw, since such a design of the thread leads to a substantially non-cutting production by deformation or furrows of the complementary internal thread, whereby a particularly effective engagement of the external thread in the results in the mounting wall and / or the Eingriffswandung.

In a particularly preferred embodiment of the device according to the invention, at least one outwardly projecting tongue is arranged on at least one of the side walls of the fastening profile part, the orientation of which can be changed relative to the side wall. Due to this measure, the fastening profile part can be adapted to single-chamber profiles with different inner cross sections, in which the at least one tongue is displaced such that insertion of the fastening profile part in the longitudinal direction into the single-chamber profile is possible under substantially play-free seating.

In a further, preferred variant of the device according to the invention at least on one side wall of the fastening profile part at least one after externally projecting tongue arranged, which is fastened via a predetermined breaking point on the side wall. This embodiment of the device according to the invention is particularly suitable to be used on two single-chamber profiles of different inner cross-section. In this case, the fastening profile part is designed so that it is inserted with the molded tongues in a single-chamber profile of larger cross-section, with distant tongues in a single-chamber profile smaller cross-section substantially free of play.

The invention is further embodied in a method for fastening fitting parts to mounting walls of single-chamber profiles using a mounting means, in particular a mounting screw, with the following steps:

Introducing a fastening profile part, which has at least one engagement wall spaced from the mounting wall, into the single-chamber profile;

Positioning the fastening profile part in the single-chamber profile;

Creating an opening in the engagement wall for engagement of the mounting means.

Particularly preferably, the inventive method additionally has the step of creating an opening in the mounting wall for the mounting means after introduction of the fastening profile part, since in this case it is ensured that the openings are aligned in the mounting wall and in the Eingriffswandung.

In order to prevent tilting at a later loading of the fastening device by acting on the fitting forces, is - particularly preferably fixed at least one side wall of the fastening profile part on at least one side wall of the Einkammerprofils positively, for example by riveting or screwing, preferably with a self-tapping screw.

In the drawing, an embodiment of a device according to the invention - in part - shown. It serves here for fastening the wing and frame endbandlappen a band for hinged connection of a wing with a frame, which is not shown for reasons of clarity.

Show it:

1 is an exploded perspective view of this embodiment of the device according to the invention on the one hand on the frame profile (shown on the left), on the other hand on the sash profile (shown on the right) and

Fig. 2 seen the same embodiment of the device in the assembled state in the longitudinal direction of the frame and wing profiles (view A in Fig. 1).

The device of the invention is used to attach a fitting to a single-chamber profile 1, here the attachment of the frame and wing hinge tabs of a belt, not shown in the drawing for hinged connection of a frame profile 2 on a wing profile 3, wherein in the drawing upper profile walls of the frame and Wing profiles form the mounting walls 4, where the band is arranged.

Each of the devices provided on the frame profile and on the wing profile according to the invention have in the embodiment shown in the drawing two mounting means 5, which are designed as mounting screws 6. Each mounting means 5 has in the insertion direction P at the rear end of a collars 7. Further, the mounting screw 6 has an external thread 8, the core diameter 9 decreases at about the same flank height 10 in the direction of installation of the mounting screw 6 in the front part in the direction of insertion, as can be seen in Fig. 2.

Furthermore, the device according to the invention has a fastening profile part 11 which can be introduced in each case into a single-chamber profile 1 and which, in the exemplary embodiment shown in the drawing, is at a distance from the mounting wall 4 Engagement walls 12, 13 includes. The engagement walls 12, 13 extend parallel to the mounting wall 4. They extend between two side walls 14, 15th

To be able to screw in the mounting screws 6, perforations are provided for each mounting screw 6 both in the assembly wall 4 and in the engagement walls 12, 13, which holes are aligned in the inserted state of the fastening profile part 11.

As is apparent in particular from FIG. 2, the fastening profile parts 11 are adapted to the respective single-chamber profile 1 such that in the inserted state of the fastening profile part 11, the side wall 15 bears against a lateral wall 16 of the single-chamber profile 1.

On the side wall 14, the fastening profile part 11 has two outwardly projecting tongues 17, 18, which are connected to the side wall 14 via predetermined breaking points 19, 20.

The outer spacing of the two side walls 14, 15 and the length of the tongues 17, 18 protruding beyond the side wall 14 are dimensioned so that the fastening profile part 11 with molded tongues, as shown on the right in FIGS. 1 and 2, in the single-chamber profile 1 larger inside width (the sash profile 3) is inserted substantially free of play, with the free edges of the tongues 17, 18 are supported on a side wall 21 of the sash profile 3 and the opposite wall 15 rests against the side wall 16. If, on the other hand, the tongues 17, 18 are removed along the predetermined breaking points 19, 20, then the fastening profile part 11 can be inserted into the single-chamber profile 1 of smaller internal cross-section (the frame profile 2), on the one hand the side wall 15 resting against the lateral wall 16, and on the other hand a flat outward surface projecting portion 22 of the side wall 14 on the lateral wall 21 'of the frame profile 2 (see in particular Fig. 2).

Furthermore, the embodiment of the device according to the invention shown in the drawing comprises two self-tapping screws 23 which are aligned in holes in the walls 15, 16, not shown in FIG. 1; 14, 21 or 14, 21 ' are screwed and thus fix the mounting profile part 11 in the respective Einkammerprofil 1.

In the preferred embodiment of the device according to the invention shown in the drawing, the mounting means 5 each comprise a longitudinal bore 24 which extends from the abutment collar 7 into the interior of the mounting means 5. At the foot of the hole, a hexagon socket, not shown in the drawing for attaching a rotary tool is provided. Above the hexagon socket, an internal thread is provided into which a fastening screw (not shown in the drawing) for mounting the fitting part (also not shown) can be screwed.

The fitting of the fitting is done with the device according to the invention as follows:

Inserting the fastening profile part 11 into the single-chamber profile 1;

Inserting the perforations 25, 25 ', 25 "in the mounting wall 4 and the Eingriffswandungen 12 and 13;

Screwing in each case the associated mounting screw 6 under furrows of internal threads in the mounting and Eingriffswandungen 4, 12, 13;

additional fixing of the fastening profile part 11 by means of the screws 23;

Attach the fitting by means of engaging in the longitudinal holes 24 mounting screws.

The screwing of the mounting screws 6 prepares in particular no difficulties, since the nature of the Eingriffswandungen 12, 13 of the fastening profile part 11 corresponds approximately to that of the mounting wall 4. In particular, it is not necessary to make special measures on the engagement walls 12, 13 before screwing in the mounting screw 6. Depending on the nature of the mounting wall 4 and the Eingriffswandungen 12, 13 and the size of the means of the inventive device to be generated holding forces, it may be sufficient if a threaded engagement is accomplished only in one of the perforations 25, 25 ', 25 "and the other perforations formed are that they lead the mounting screw 6 only laterally against tilting.

LIST OF REFERENCE NUMBERS

1 single chamber profile

2 frame profile

3 sash profile

4 mounting wall

5 mounting means

6 mounting screw

7 Investment Association

8 external thread

9 core diameter

10 flank height

11 fastening profile part

12 engaging wall

13 engaging wall

14 side wall

15 side wall

16 lateral wall

17 tongue

18 tongue

19 breaking point

20 predetermined breaking point

21, 21 'Lateral wall

22 area

23 screw

24 longitudinal bore

25 holes

A view

P insertion direction

Claims

claims:

1. An apparatus for fastening of fittings on mounting walls (4) of Einkammerprofilen (1), with a mounting means (5) and with one in the Einkammerprofil (1) insertable mounting profile part (11) which at least one of the mounting wall (4) spaced Eingriffswandung (12, 13), in which engage the mounting means (5) in the inserted state.

2. Device according to claim 1, characterized in that the mounting means (5) is a mounting screw (6) with an arranged in the direction of insertion at the rear end bearing collar (7), an external thread (8) and mounting engagement surfaces.

3. Device according to claim 1 or 2, characterized in that the at least one engagement wall (12, 13) extends approximately parallel to the mounting wall (4).

4. Device according to one of claims 1 to 3, characterized in that the at least one engagement wall (12, 13) extends between at least two side walls (14, 15) of the fastening profile part (11).

5. The device according to claim 4, characterized in that the fastening profile part (11) is adapted to the Einkammerprofil (1), that in the inserted state of the fastening profile part (11) at least one side wall (14, 15) at least partially on a lateral wall ( 16, 21, 21 ') of the single-chamber profile (1).

6. Device according to one of claims 1 to 5, characterized in that positioning means are provided, by means of which the fastening profile part (11) after insertion into the single-chamber profile (1) can be positioned.

7. The device according to claim 6, characterized in that the position iermittel a between the fastening profile part (11) and the single-chamber profile (1) acting elastic element.

8. Apparatus according to claim 6 or 7, characterized in that the positioning means with a lateral wall (16, 21, 21 ') of the Einkammerprofils (1) and a side wall (14, 15) of the fastening profile part (11) engageable in positive engagement Include fasteners.

9. Apparatus according to claim 8, characterized in that the fastening means is a self-tapping screw (23).

10. Device according to one of claims 2 to 9, characterized in that the external thread (8) of the mounting screw (6) is a complementary internal thread self-generating thread.

11. The device according to claim 10, characterized in that the core diameter (9) of the external thread (8) at approximately constant flank height (10) in the insertion direction (P) of the mounting screw (6) decreases.

12. Device according to one of claims 1 to 10, characterized in that at least on one side wall (14) of the fastening profile part (11) at least one outwardly projecting tongue (17, 18) is arranged, whose orientation relative to the side wall (14). is changeable.

13. Device according to one of claims 1 to 12, characterized in that at least on one side wall (14) of the fastening profile part (11) at least one outwardly projecting tongue (17, 18) is arranged, which via a predetermined breaking point (19, 20). attached to the side wall (14).

14. Device according to one of claims 2 to 13, characterized in that the device is a fastening screw and the mounting screw (6) has an internal thread into which the fastening screw can be screwed.

15. A method for fastening fitting parts on mounting walls (4) of single-chamber profiles (1) using a mounting means (5), comprising the following steps:

Introducing a fastening profile part (11), which has at least one engagement wall (12, 13) spaced apart from the mounting wall (4), into the single-chamber profile (1)

Positioning of the fastening profile part (11) in the single-chamber profile (1)

Creating an opening (25 ', 25 ") in the engagement wall (12, 13) for engagement of the mounting means (5).

16. The method according to claim 15, characterized in that an opening (25) in the mounting wall (4) for the mounting means (5) after introduction of the fastening profile part (11) is generated.

17. The method according to claim 15 or 16, characterized in that after the introduction of the mounting means (5) the fastening profile part (11) on at least one side wall (16, 21 or 21 ') of the Einkammerprofils (1) is positively fixed.