DE202007003675U1 - Device for fastening fittings to hollow sections - Google Patents

Abstract

Apparatus for fastening fitting parts to hollow profiles, comprising a mounting insert (21, 36, 44, 50, 56) which can be introduced into the hollow profile and which comprises an abutment collar (22) arranged in the direction of insertion at the rear end; 11, 12) of the hollow profile is present,
characterized,
in that the mounting insert (21, 36, 44, 50, 56) has a length such that the front end (23, 37) of the mounting insert (21, 36, 44, 50, 56) at least almost reaches its fitted position the profile side (24, 25) opposite the attachment side (11, 12) and:
in that a flat counter piece (26, 40, 43) is provided which can be fastened to the mounting insert (21, 36, 44, 50, 56) by means of fastening means (28) and in the fastened position on the profile outside (24, 25 ) is present.

Description

The The invention relates to a device for fastening fittings on hollow profiles, with an insertable into the hollow profile mounting insert, the one arranged in the direction of insertion at the rear end investment bond comprising, in the mounted position on a mounting side of the hollow profile is applied.

Such a device is known from DE 202 18 699 U1 known. The mounting insert of this fastening device comprises an external thread, the core diameter of the mounting screw decreases with the same flank height in the direction of installation of the mounting screw. Furthermore, the mounting insert comprises mounting engagement surfaces, which serve the approach of a turning tool. For fastening the mounting insert holes are first introduced into walls of the profile whose diameter is smaller than the core diameter of the external thread of the mounting insert. Subsequently, the mounting insert is screwed into the holes by the application of a turning tool, wherein the external thread does not cut into the walls due to its design, but rather a forming process occurs, which additionally solidifies the material at the edge of the perforations.

The Practice has shown that by means of this mounting insert high holding forces can be achieved if the profile walls made of metal, such as aluminum exist and it is a multi-chamber profile, which at least an inner profile wall comprising, with which the mounting insert is engaged.

In modern frame-wing systems find regular Multi-chamber profiles use in which at least two chambers over Webs made of heat-insulating material. The one the chambers is then to the cold side, the other chamber accordingly arranged to the warm side of the frame or the wing. By located between the chambers Isolierstege is the Avoiding the formation of cold bridges.

Around now to avoid cold spots between the Frame and the wing over the mounting inserts arise, it is desired the mounting inserts to arrange in the area of the insulating bars, so that they are not with the good heat conductive metallic profile material in connection reach.

Experiments have shown that from the DE 202 18 699 U1 Known device for attachment in the field of insulating bars is less well suited, since the achievable with her holding forces are lower than when they are used in perforations in metallic material.

Of the Invention is therefore based on the object, a device for Fixing of fittings to create hollow sections, the also a reliable and high holding forces securing attachment allows the fitting parts in the area of insulating bars.

These The object is achieved by the recited in claim 1 device solved. However, it is not on the attachment of fittings limited in the area of insulating bars, but can as well be used on hollow profiles in the range of metallic walls.

Thereby, that in the device according to the invention the Mounting insert has a length that in the direction of insertion Front end of the mounting insert in its inserted position at least almost to the attachment side opposite Profile outside, and that a flat counterpart is provided, which on the mounting insert by means of fastening means is fastened and in the fastened position on the profile outside is present in the device according to the invention the holding forces over a large area on the one hand from the investment in the attachment side, on the other hand from the flat Counterpart in the opposite profile outside initiated. The device according to the invention is therefore also suitable for use in profile materials, which - like many heat insulating materials - only relative low shear forces can absorb, so that the passages of cut threads for tearing out would tend. In that the counterpart is flat is formed, the device protrudes only slightly the outside of the profile, so that due to the low, additional space required for many frame / wing combinations Can be used.

One Another advantage of the device according to the invention is that the outer circumference of the mounting insert no special processing required. He can in the simplest case simply be cylindrical, with no surface on the surface particular quality or tolerance requirements Need to become.

The attachment means, with which the counterpart can be fastened to the mounting insert, can basically be designed in any desired manner. In a first, preferred variant, they comprise a bore extending from the front end of the mounting insert and a rivet which can be introduced into the bore and can be anchored in the bore. The rivet connection between the rivet and the mounting insert can in soge Taumelnietverfahren be produced.

at a further variant of the invention Device, the fastening means comprise a from the front End of the mounting insert extending threaded hole and an in the threaded hole screw-in screw, which for reasons of space is preferably designed as a countersunk screw.

at In a further variant, the fastening means comprise an in the inserted position of the mounting insert from the profile outside outstanding area of the mounting insert and one on the area slide-on spring clip. In this variant, the mounting insert slightly longer than the outer distance of the Attachment side and the opposite profile outside chosen so that the spring clip in the axial direction pushed out of the profile outside outstanding area can be.

Of the Spring clip may be fixing a separate counter piece serve. However, it is particularly preferred if the spring clip so is formed that he himself forms the counterpart. For this purpose, the spring clip may comprise an annular frame whose Area big enough is chosen to the Introduce retaining forces from the mounting insert into the frame material to be able to.

at a further variant of the invention Device, the fastening means have a in the introduced Position of the mounting insert from the profile outside outstanding area of the mounting insert with an external thread and a spring nut which can be screwed onto this area. These Variant has the advantage over the previously described that by more or less tightening of the spring nut the clamping forces, which act on the profile, can be dosed. Because the Spring nut under an elastic force in the threads engages the external thread, becomes an automatic, unwanted loosening of the mother avoided.

In turn can use the spring nut to attach a separate counter piece serve or - particularly preferably - designed in this way that she herself serves as a counterpart.

at a further variant of the invention Device comprise the fastening means one in the introduced Position of the mounting insert from the profile outside outstanding area of the mounting insert with an annular groove and a in the annular groove insertable circlip. This variant draws characterized by a particularly simple manufacturability, but where the clamping forces coming from the outside on the mounting side and the opposite profile outside act, can not be changed.

In turn Can the circlip to fix a separate counterpart serve or - particularly preferred - a size that he himself forms the counterpart.

at another, most preferred embodiment the device according to the invention have the fastening means one in the mounted position of the mounting insert from the Profile outside outstanding area of the mounting insert with an annular groove and an insertable into the annular groove sheet metal on which forms the counterpart. With grid sheet is a flat component is meant, which has a recess which is formed so that the edges of the recess below elastic deformation can be introduced into the annular groove and it is fixed in an end position relative to the mounting insert.

Especially it is preferred if the grid plate is designed in such a way, that it in the annular grooves of several, arranged side by side on the profile Mounting inserts can be used. Because of this measure can be the effective area of the grid plate attached to the profile outer wall is increased, so that due to the associated, reduced specific loading of the profile wall higher holding forces in the area of the counterpart can be included.

Around on the mounting insert a fitting part, in particular a band to hinged connection of a wing with a hinge It is particularly preferred when the mounting insert at its rear end in the direction of insertion includes a threaded hole. In this threaded hole, a fixing screw, the penetrated a hole in the fitting part, screwed in and the Fitting thus tightened against the mounting side of the profile become. It is also possible, the investment bond of the mounting insert and a recess in the fitting part for the investment bond in such a way that the fitting substantially against the Fixed collar of the mounting insert is tightened, so as to deformation to avoid the attachment side of the profile.

The invention also relates to an arrangement with a multi-chamber profile in which at least two chambers via webs of heat-insulating material, and with a device of the type described above, wherein the mounting side and the fastening side opposite profile outside of webs of heat-insulating material are formed. This arrangement is characterized by a particularly good thermal insulation between the warm and the cold side, since cold bridges between the wing and the frame are effectively avoided.

In The drawings are embodiments according to the invention Devices shown. Show it:

1a) the profiles of a frame / wing assembly, which are hinge-hinged together with a fixed by means of a first variant of the fastening device according to the invention roll band, in a perspective view of the sides of the frame profile;

1b) the same arrangement as in 1a) in a perspective view of sides of the wing profile;

1c) a cross section along section line cc in 1a) ;

1d) a cross section along section line dd in 1b) ;

2a) a single representation of the embodiment of the device according to the invention 1 in a view from above;

2 B) an exploded view of the embodiment according to 2a) in a perspective view;

3a) to d) 1a) to d) corresponding views of a frame / wing assembly with a second embodiment of a device according to the invention;

4a) and b) the embodiment of the device according to the invention according to 3 in 2a) and b) corresponding views;

5a) to d) a frame / wing assembly with a third embodiment of a device according to the invention in 1a) to d) corresponding views;

6a) and b) the embodiment of the device according to the invention according to 5 in 2a) and b) corresponding views;

7a) to d) a frame / wing assembly with a fourth embodiment of a device according to the invention in 1a) to d) corresponding views;

8a) and b) the embodiment according to 7 in 2a) and b) corresponding views;

9 a frame / wing assembly with a fifth embodiment of a device according to the invention in 1a) to d) corresponding views;

10a) and b) the embodiment of the device according to the invention according to 9 in 2a) and b) corresponding views;

11a) to d) a frame / wing assembly with a sixth embodiment in 10a) to d) corresponding views;

12a) and b) the embodiment of the device according to the invention according to 11 in 2a) and b) corresponding views;

13a) to d) a frame / wing assembly with a seventh embodiment of a device according to the invention in 1a) to d) corresponding views as well

14 the embodiment of the device according to the invention according to 13 in 2a) and b) corresponding views.

Referring to the 1 and 2 Now, the first embodiment of the device according to the invention will be explained in detail. It is used to attach fittings, in the drawing of a roller belt 1 holding a wing flap 2 and a frame tape tab 3 includes on frame and wing-side hollow sections. The wing hinge flap 2 includes a wing hinge part 4 approximately cylindrical, "roll-shaped" cross-section, to which a wing attachment part 5 is formed. The frame hinge flap 3 includes two spaced-apart, the wing hinge part 4 between receiving frame hinge parts 6 . 6 ' which in turn have a "roll-shaped" outer cross-section corresponding to the outer cross-section of the wing hinge part 6 . 6 ' are attached to a frame attachment part 7 formed. Through the wing and frame hinge parts, a hinge pin extends 8th defining the hinge axis S about which the wing and frame hinge tabs are pivotable.

The fastening parts 5 . 7 project into a joint between a frame profile belonging to the frame 9 and a wing profile belonging to the wing 10 and are on the corresponding narrow side, also attachment side 11 . 12 called, the respective profile 8th . 9 attached.

At the profiles 9 . 10 these are hollow chamber profiles. They each have two profile chambers 13 . 14 ; 15 . 16 on, each with two insulating bars 17 . 18 ; 19 . 20 are firmly connected together to form a multi-chamber profile.

In order to avoid the formation of cold bridges, finds the attachment of the wing and frame mounting parts 5 . 7 in the area of insulating bars 17 . 18 ; 19 . 20 instead of. Serve for this purpose fastening devices, which are referred to below and in the drawing regardless of the particular embodiment with B.

At the in 1 and 2 illustrated first embodiment, the fastening devices comprise a mounting insert 21 which has a substantially zy-cylindrical outer contour. It comprises an abutment collar arranged at its rear end in the direction of introduction 22 which in the inserted position (s. 1c) and d)) on the respective attachment side ( 11 . 12 ) is present.

The mounting insert 21 has a length such that its front end in the direction of insertion 23 at least almost to the respective, the attachment side 11 . 12 opposite profile outside 24 . 25 stands out (s. 1c) and d)).

To the mounting insert 21 in the inserted position in the respective profile 9 . 10 to fix, are flat counter pieces 26 . 27 intended. The counter pieces 26 on the side of the frame profile 9 Use are each on a single mounting insert with the help of fasteners 28 attached. The fasteners 28 include one from the front end 23 into the interior of the mounting insert 21 extending bore 29 and a rivet inserted into the bore and anchored therein 30 which is the counterpart 26 interspersed in a perforation.

The counterpart 26 is made of a sheet metal. For anti-rotation, it has a bend 31 on the one in the profile outside 24 provided longitudinal groove 32 intervenes.

The wing profile-side counter piece 27 is at three adjacent to each other in the sash profile 10 arranged mounting inserts 21 in a similar manner, ie by means of the bore 29 engaging rivets 30 attached. Since it does not require an additional rotation, this is the counter piece 27 essentially flat.

The mounting insert 21 has a threaded bore extending longitudinally from its rear end 33 on. The frame attachment part 7 is by means of a bolt passing through it in a hole 34 in the tapped hole 33 engages, screwed, with the frame attachment part 7 to the investment association 22 is pressed (s. 1c) ).

For fastening the wing attachment part 5 also serves in the threaded hole 33 the corresponding mounting insert 21 screwed in guide member 35 on which the wing attachment part 5 by means of known, not shown in the drawing means for the purpose of adjusting the gap between the wing and the frame perpendicular to the mounting surface 12 is relocatable (see in particular 1d) ).

As in particular from 1c) and 1d) becomes clear, in the device according to the invention via the fastening screw 34 or the guide member 35 in the respective mounting application 21 introduced holding forces in the axial direction of the mounting insert 21 large area on the one hand on the investment alliance 22 , on the other hand, about the counterpart 26 in the attachment pages 11 . 12 and in the profile outside 24 . 25 initiated, so that the assembly of the respective hinge strap in order to avoid cold spots in the area of the insulating bars 17 . 18 respectively. 19 . 20 despite the fact that the properties of the insulating material are less suitable for the introduction of forces.

following Now, further embodiments of the invention Device with reference to the drawings, to which reference is made will be explained. To avoid repetition in each case only the differences from the previously described embodiment explained.

At the in 3 and 4 illustrated second embodiment, the wing-side mounting insert 36 for the formation of the fastening means 28 one from his front end 37 into the interior extending threaded hole 38 on, in the fixing screws 39 for the purpose of fixing the counterpart 40 are rotatable. For the penetration of each fixing screw 39 has the counterpart 40 an approximately keyhole shaped breakthrough 41 on. The breakthroughs 41 are formed such that the heads of the fastening screws 39 pass through the larger portions of the apertures, however, the smaller portions of the apertures engage behind the heads so that the counterpart can be brought into registry with the mounting screws by longitudinal insertion of the fastener screws and subsequent displacement perpendicular thereto. Subsequently, a fixation by tightening the mounting screws.

At the in 5 and 6 illustrated embodiment are in contrast to the basis of 3 and 4 illustrated the breakthroughs 42 of the counterpart 43 formed as a counterbore, so that in contrast to the above-described embodiment, a pre-assembly of mounting screws and subsequent placement of the counterpart is not possible.

At the in 7 and 8th illustrated embodiment, the wing profile side mounting inserts 44 a length greater than the distance of the attachment side 12 and the profile outside 25 , The fasteners 28 are then formed by one out of the profile outside 25 outstanding area 45 of the mounting insert 44 and a spring clip pushed onto this area 46 , In the embodiment shown in the drawing, the spring clip 46 an annular frame 47 a total area which is sufficiently large to initiate the holding forces, so that the spring clip 46 even the counterpart forms and thus can be dispensed with further components. The spring clip 46 points from its frame 47 radially inwardly directed tongues 48 on, which are inclined against the Aufschiebrichtung so that the spring clip while spreading the tongues while slightly on the mounting insert 44 deferrable, but can only be deducted from this under considerably greater use of force.

In the 9 and 10 The embodiment illustrated corresponds essentially to that with reference to FIG 7 and 8th described. The out of the profile outside 25 outstanding area 49 of the mounting insert 50 is however with an external thread 51 provided on the one about as the spring clip 46 trained mother-of-feathers 52 can be screwed on. The spring nut 52 again has radially inwardly directed tongues 53 on, with their radially inward edges into the threads of the external thread 51 intervention. The spring nuts 52 in turn form the counterpart itself. The pressure with which the mounting insert 50 on the one hand against the attachment side 12 , on the other hand against the profile outside 25 acts, in this embodiment by turning the spring nuts 52 to be changed.

At the in 11 and 12 illustrated embodiment include the fastening means 28 one on the outside of the profile 25 outstanding area 54 of the mounting insert 56 provided annular groove 57 and a spring washer 58 which is under spreading with the annular groove 57 can be engaged. The spring ring 58 immediately forms the counterpart.

At the in 13 and 14 illustrated embodiment find the same mounting inserts 56 as with the basis of 11 and 12 described use. The counterpart is, however, by a grid plate 59 formed, which is approximately in the manner of a spring ring in engagement with the annular grooves 57 can be brought, but about three side by side arranged in the wing profile mounting inserts 44 extends. For this purpose, the grid plate 59 a longitudinal recess 60 on, whose opposite edges have a distance which is less than the core diameter of the annular groove 57 is and in the places where that on the mounting inserts 56 deferred grid plate in its end position on the cores of the annular grooves 57 rests, has minor recesses in order to fix the grid plate so in its defined end position.

1

roll band

2

Leaf hinge strap

3

Frame hinge flap

4

Wing hinge part

5

Wing attachment part

6 6 '

Frame hinge parts

7

Frame fastening member

8th

hinge bolts

9

frame profile

10

airfoil

11

narrow side

12

narrow side

13

profile chamber

14

profile chamber

15

profile chamber

16

profile chamber

17

Insulating web

18

Insulating web

19

Insulating web

20

Insulating web

21

assembly work

22

contact collar

23

front The End

24

Profile outside

25

Profile outside

26

counter-piece

27

counter-piece

28

fastener

29

drilling

30

rivet

31

angulation

32

longitudinal groove

33

threaded hole

34

fixing screw

35

guide member

36

assembly work

37

front The End

38

threaded hole

39

fixing screw

40

counter-piece

41

breakthrough

42

breakthrough

43

counter-piece

44

assembly work

45

Area

46

spring clip

47

frame

48

tongues

49

Area

50

assembly work

51

external thread

52

spring nut

53

tongues

54

Area

56

assembly work

57

ring groove

58

spring washer

59

grid plate

60

longitudinal recess

B

fasteners

S

hinge axis

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 20218699 U1 [0002, 0006]

Claims (14)

Device for fastening fittings to hollow sections, with a mountable in the hollow profile mounting insert ( 21 . 36 . 44 . 50 . 56 ), which arranged in the direction of insertion at the rear end investment bond ( 22 ), which in the inserted position on a mounting side ( 11 . 12 ) of the hollow profile, characterized in that the mounting insert ( 21 . 36 . 44 . 50 . 56 ) has a length such that the front end in the direction of insertion ( 23 . 37 ) of the mounting insert ( 21 . 36 . 44 . 50 . 56 ) in its inserted position at least almost to the attachment side ( 11 . 12 ) opposite profile outside ( 24 . 25 ) and that a flat counterpart ( 26 . 40 . 43 ) is provided, which on the mounting insert ( 21 . 36 . 44 . 50 . 56 ) by means of fastening means ( 28 ) and in the fastened position on the outside of the profile ( 24 . 25 ) is present. Device according to claim 1, characterized in that the fastening means ( 28 ) a bore extending from the front end of the mounting insert into its interior ( 29 ) and an insertable into the bore and anchored in this rivet ( 30 ). Device according to claim 1, characterized in that the fastening means ( 28 ) extending from the front end of the mounting insert threaded hole ( 33 ) and one in the threaded hole ( 33 ) screw-in screw ( 34 ). Device according to claim 3, characterized in that the screw ( 34 ) is a countersunk screw. Device according to claim 1, characterized in that the fastening means ( 28 ) one in the inserted position of the mounting insert from the profile outside ( 25 ) outstanding area ( 45 ) of the mounting insert ( 44 ) and one on the area ( 45 ) push-on spring clip ( 46 ) exhibit. Device according to claim 5, characterized in that the spring clip ( 46 ) forms the counterpart. Device according to claim 1, characterized in that the fastening means ( 28 ) one in the inserted position of the mounting insert ( 50 ) from the outside of the profile ( 25 ) outstanding area ( 49 ) of the mounting insert ( 50 ) with an external thread ( 51 ) and a spring nut which can be screwed onto this area ( 52 ). Device according to claim 7, characterized in that the spring nut ( 52 ) forms the counterpart. Device according to claim 1, characterized in that the fastening means ( 28 ) one in the inserted position of the mounting insert ( 56 ) from the outside of the profile ( 25 ) outstanding area ( 54 ) of the mounting insert ( 56 ) with an annular groove ( 57 ) and one in the annular groove ( 57 ) insertable circlip ( 58 ). Apparatus according to claim 9, characterized in that the retaining ring ( 58 ) forms the counterpart. Device according to claim 1, characterized in that the fastening means ( 28 ) one in the inserted position of the mounting insert ( 56 ) from the outside of the profile ( 25 ) outstanding area ( 54 ) of the mounting insert with an annular groove ( 57 ) and one in the annular groove ( 57 ) insertable metal sheet ( 59 ), which forms the counterpart. Apparatus according to claim 11, characterized in that the grid plate ( 59 ) is configured such that it in the annular grooves ( 57 ) of a plurality of mounting inserts arranged side by side ( 56 ) can be used. Device according to one of claims 1 to 12, characterized in that the mounting insert ( 21 . 36 . 44 . 50 . 56 ) comprises a threaded bore at its rear end in the direction of insertion. Arrangement with a multi-chamber profile, in which at least two chambers via webs ( 17 . 18 . 19 . 20 ) consist of heat-insulating material, and with a device according to one of claims 1 to 13, wherein the mounting side ( 11 . 12 ) and the attachment side ( 11 . 12 ) opposite profile outer sides ( 24 . 25 ) from the webs ( 17 . 18 . 19 . 20 ) are formed of heat-insulating material.