EP1859115A1

EP1859115A1 - Fitting for fixing in an undercut groove of a metal or plastic profile

Info

Publication number: EP1859115A1
Application number: EP06723065A
Authority: EP
Inventors: Hans-Jürgen Palmowsky; Ingo Steinfeld
Original assignee: Dr Hanh GmbH and Co KG
Current assignee: Dr Hanh GmbH and Co KG
Priority date: 2005-03-15
Filing date: 2006-02-21
Publication date: 2007-11-28
Also published as: CN101120149A; RU2375538C2; WO2006097178A1; DE202005004095U1; RU2007138036A; CN101120149B

Abstract

The invention relates to a fitting (100, 200, 300, 400, 500, 600, 700, 800), in particular for a strip, for fixing in an undercut groove (104, 204, 304, 404, 504, 604, 704, 804) of a metal or plastic profile of windows, doors or similar or frames thereof. Said fitting comprises a first projection (133, 233, 333, 433, 533, 633, 733, 833), which can be inserted into a first undercut (108, 208, 308, 408, 508, 608,708, 808) of the groove (104, 204, 304, 404, 504, 604, 704, 804), and at least one clamping element (114, 214, 314, 414, 514, 614, 717, 814) which comprises a second projection (134, 234, 334, 434, 534, 634, 734, 834) which, when the projection part is inserted into the first undercut (108, 208, 308, 408, 508, 608, 708, 808), can be inserted into a second undercut (109, 209, 309, 409, 509, 609, 709, 809) which is opposite the first undercut, and the second projection (134, 234, 334, 434, 534, 634, 734, 834) can be clamped against the defining surface towards the outside of the second undercut and is in the inserted position in the second undercut (109, 209, 309, 409, 509, 609, 709, 809).

Description

Fitting for fastening in an undercut groove of a metal or plastic profile

The invention relates to a fitting, in particular a band, for fastening in an undercut groove of a metal or plastic profile of windows, doors or the like or of the frame, with a first projection which is engageable in a first undercut of the groove, and at least a clamping element, which comprises a second projection, which is engageable with a projection engaged in the first undercut in a second undercut opposite the first undercut.

Such a fitting is known from DE-GM 77 09 379. In this fitting, the clamping element comprises a cylindrical bearing neck which is rotatably mounted rotatably in a matched to the diameter of the bearing neck bore in the fitting. On the groove side facing a radially cam-like projecting clutch disc is provided on the cylindrical bearing neck. The bearing neck receiving bore in the fitting is inclined against the Nutebene, so that upon rotation of the bearing neck of the cam-like protruding edge is not only displaced in the Nutebene behind the second undercut of the profile, but also has a component of movement perpendicular to the Nutebene, so that upon rotation immediately a clamping in the second undercut is effected.

Although an attachment of this fitting at any point in the longitudinal direction of the profile groove by placing the fitting at the desired attachment point in a simple manner possible in which initially the clutch disc is positioned so that it does not protrude beyond the outer contours of the fitting, and after placing the Fittings is rotated by an angle of rotation of about 180 degrees, so that the cam-like projecting part of the clutch disc engages in the second Hinterschnei- fertil. The disadvantage, however, is that a defined clamping position for the clutch disc does not exist. Thus, depending on the manufacturing tolerances and the profile stiffness, the clutch disk can be turned away beyond the position of the maximum clamping force in which the cam-like projection assumes the "top dead center." Reliable installation of this hardware is thereby impeded Slipping of the fitting in the longitudinal direction of the profile groove lead to a rotation of the clamping part from the top dead center, whereby the Clamping force reduced and the secure grip of the fitting on the profile would no longer be guaranteed.

The invention is therefore based on the object to provide a fitting that can be attached to the profile in a similar manner as described above, but ensures a more reliable fit of the fitting.

This object is achieved by the reproduced in claim 1 fitting.

In the fitting according to the invention, the second projection can be clamped in the engaged in the second undercut position against the second undercut outwardly bounding surface. In other words, the fitting according to the invention is characterized in that, in a first step after the fitting of the fitting on the profile, the second projection is first displaced into a position in which the projection engages in the second undercut. In this well-defined position, the second undercut can now be clamped in a further fastening step against the surface defining the second undercut to the outside. A well-defined clamping state, which is not solved by external influences such as vibrations, displacement of the fitting in the direction of the groove, is the result.

In a preferred embodiment, the clamping element engages through an opening provided in the fitting.

The clamping forces required for the secure retention of the fitting on the profile can be introduced into the fitting in a particularly effective manner if the clamping element is supported indirectly or directly on a clamping surface provided on the fitting.

In a particularly preferred variant of the fitting, the clamping element is multi-part, preferably formed in two parts. It then comprises a part which comprises the second projection and a second part which is supported on the clamping surface, the two parts engaging in one another via threads. The displacement of the second projection in the engaged position in the second undercut position against the second undercut outwardly bounding surface then takes place in that the two parts are rotated relative to each other in the sense of screwing each other. In order to initiate the rotation of one part of the clamping element relative to the other part, the part of the clamping element which is supported on the clamping surface may have means for engaging a rotary tool, for example a hexagon socket. The other, the projection having part is then preferably mounted against rotation to prevent the fastening process thwarting co-rotation.

However, an embodiment of the fitting in which the second part comprising the projection comprises means for engaging a turning tool is particularly preferred. It is then possible on the one hand, by applying the rotary tool to cause a displacement of the projection in the second undercut, on the other hand - if the projection is rotationally symmetrical to the axis of rotation - the clamping effect by rotation of the second projection having part relative to the other part are generated.

In order to enable an attack of a rotary tool on the second part, the part which is supported on the clamping surface preferably has an opening through which the rotary tool can be passed.

The clamping operation is again facilitated if, during rotational actuation of the second part, the part of the clamping element which is supported on the clamping surface is mounted against rotation.

Structurally, the latter can be accomplished by providing a key surface on the clamping element which can be brought into operative connection with a key surface on the fitting or on the profile.

If the clamping surface comprises-as is particularly preferred-a conical surface provided in the opening of the fitting, and if a countercone surface complementary to the conical surface is provided on the clamping element, then the clamping element can be configured such that it does not protrude beyond the outer surface of the fitting. Particularly small installation dimensions and a uniform, pleasing visual appearance of the fitting are u. a. the advantages.

The surface with which the second projection in the position engaged in the second undercut presses against the surface bounding the second undercut, is preferably a conical surface. This embodiment has on the one hand the Advantage that for effecting the clamping seat of the second part of the clamping member relative to the first can be rotated, on the other hand leads to the first, ie at the beginning of the clamping process point or line attachment of the conical surface on the second undercut outwardly limiting surface to such a high void - Chenbelastung that the second undercut outwardly bounding surface plastically deformed. The result is a positive engagement of the conical surface in the profile surface, whereby the fitting is particularly well secured against slipping in the longitudinal direction of the groove.

As already mentioned, an assembly of a fitting according to the invention can take place in that the preassembled clamping elements are first brought into a position in which a fitting of the fitting and insertion of the first projection in the first undercut of the groove is possible. Subsequently, for example with the aid of the rotary tool, the clamping element can be displaced into a position in which the second projection is engaged in the second undercut.

However, it is also possible to provide means for pre-positioning the part of the clamping element comprising the second projection in the position engaged in the second undercut. In this variant, the part of the clamping element comprising the second projection is first brought into the desired position in the profile groove and held there before the fitting of the fitting. Subsequently, the fitting is placed and the first part of the clamping element brought by rotation of the first or the second part in threaded engagement with the other part and finally causes the clamping operation.

In a further preferred embodiment of a fitting according to the invention, the clamping element, starting from the projection over part of its length on an external thread. In the fitting, a slot-shaped opening is provided, which has in the region corresponding to the position of the clamping element, in which the projection is engaged in the second undercut, adapted to the external thread internal thread. In this embodiment, the fitting of the fitting into the profile can take place by engaging the first projection in the first undercut of the groove when the clamping element is in the unthreaded region of the langlόchförmigen opening. After complete fitting of the fitting, the clamping element can then be displaced in the slot-shaped opening in the threaded area. By screwing the clamping element into the Wind the slot-shaped opening, the engagement of external and internal thread and finally the clamping operation can be effected.

Particularly preferred is a development of this embodiment, in which the part of the oblong hole having no internal thread has a width which is smaller than the diameter of the internal thread. The threadless region of the clamping element is then adapted to this width in such a way that it can be displaced in the slot in its longitudinal direction. If the free end of the unthreaded region of the clamping element has a radially protruding edge whose outside diameter is greater than the width of the unthreaded region of the oblong hole and smaller than the diameter of the internal thread, then the clamping element is captive as long as it is in the unthreaded region of the thread Langloch is located.

In order to facilitate the engagement of the external thread provided on the clamping element with the internal thread of the oblong hole, a spring element is preferably provided on the projection-side end of the clamping element, which is supported on the base of the groove. As a result of this measure, the end of the external thread pointing to the unthreaded part of the clamping element rests against the internal thread after the fitting of the fitting, so that rotation of the clamping element in the direction of insertion inevitably leads to engagement of the thread.

It is particularly preferred in all variants of the fitting according to the invention, although the first projection is formed by a conical surface. As a result of this measure, the area force exerted by the first projection on the surface defining the first undercut to the outside is also so great that plastic deformation takes place with the consequence of a positive engagement during fastening of the fitting.

Particularly high holding forces can be generated if-as is particularly preferred-the conical surface is formed on the head of a screw which can be rotated from the outside of the fitting.

Very particularly high holding forces can be absorbed by all variants of the fitting according to the invention if a further undercut is provided outside the groove on the profile and the fitting comprises a further projection engaging behind this undercut. In the drawings, embodiments of the fitting according to the invention are shown. Show it:

1 a shows a first exemplary embodiment in an exploded perspective view;

Fig. 1 b - 1 d different stages of the assembly process of the embodiment shown in Figure 1 a of the fitting on a profile in a cross section through the profile and the fitting.

2 a - 2 d, a second embodiment of the fitting in Fig. 1 a -

1 d corresponding views;

3 a - 3 d show a third embodiment of the fitting in FIG. 1 a - 1 d corresponding views;

4 a - 4 d, a fourth embodiment of the fitting in Fig. 1 a-

1 d corresponding views;

Fig. 5a is a fifth embodiment of the fitting;

Fig. 5 b - 5 e different stages of the attachment process of

Embodiment according to 5 a on a profile in cross section through the profile and the fitting;

Fig. 6 a shows a sixth embodiment of the fitting in a Fig.

1 a corresponding view;

Fig. 6 b - 6 d different stages of the fastening process of

Ausfühmngsbeispiels according to FIG. 6 a on a profile in cross-section through the fitting and the profile, wherein Fig. 6 b is a section through the plane b in Fig. 6 a and Fig. 6 c and d sections through the plane c in FIG. 6 a show;

Fig. 7 a shows a seventh embodiment in a perspective view with different variants for pre-assembly of

Clamping elements; Fig. 7 b - 7 e different stages of assembly of the fitting according to

Fig. 7 a on a profile in cross section through the profile and the fitting as well

Fig. 8 a - 8 e eighth embodiment of the fitting in a

Fig. 5 a - 5 e corresponding representation.

In the drawings, the embodiments of the fitting according to the invention are shown using the example of bands that serve the hinged mounting a wing on a frame. Shown is always the frame hinge part, which has two hinge parts, between which the leaf hinge part is rotatably mounted in a conventional manner. However, the invention is not limited to these fittings, but relates to the attachment of any fittings on a profile.

The fitting designated 100 in FIGS. 1a-1d comprises a base plate 101. This has a center region 102 which is offset downwards in the illustration according to FIG. 1a. The amount by which the center region 102 is offset from the end regions 103 adjoining the center region 102 on both sides is adapted to the depth of a groove 104 of a profile 105 to which the fitting 100 is to be attached on both sides, so that in the mounted state 1 a bottom side of the central region 102 on the base 106 of the groove 104, the lower sides of the end portions 103 on outer surfaces 107 of the undercuts 108, 109 forming profile projections 110, 111 rest.

At the center region 102, a projection 112 oriented in the plane of the undercut 108 is provided for engagement with the first undercut 108. The width B of the center region 102 is adapted to the spacing of the profile projections 110, 11 1 in such a way that the center region 102 can be inserted from the front into the groove 104 of the profile 105 by swiveling the projection 112 into the first undercut.

The base plate comprises on the end portions 103 on the second undercut 109 side facing transversely to the longitudinal direction of the groove 104 extending slots 113, in each of which a clamping element 114 is slidably mounted in the longitudinal direction of the slots. Each clamping element comprises a threaded section 115, which is formed on a conical head 116, which roughly corresponds in its shape to the head of a countersunk screw. Between the conical head 116 and the threaded shank 115 parallel key surfaces 117 are provided. hen, the distance to the width of the slots 113 are adjusted. By abutment of the wrench flats 117 at the edges of the elongated holes 113, a security against rotation of a clamping element 114 inserted completely into a slot 113 is effected. The positioning and dimensioning of the elongated holes is selected such that the edge of the cone head 116 can be displaced past the profile projection 111 forming the second undercut 109 when the clamping element 114 in the respective slot 113 is displaced maximally to the center of the base plate 101. Towards the edge of the base plate 101, the oblong holes extend so far that the conical head projects with a part of its circumference into the second undercut 109.

At each of the end regions 103, a threaded bore is provided into which a fixing element 118 can be screwed, the shape of which substantially corresponds to that of a clamping element 114.

Both the clamping element 114 and the fixing element 118 have hexagon recesses for engaging a rotary tool at the front end of the respective threaded shaft.

The fixing element 118 receiving threaded hole 119 is arranged such that the conical head 120 of the fixing member 118 protrudes with a filing of its circumference in the first undercut 108.

On the base plate 101 rests the fitting 100, which consists in the illustrated embodiment of two hinge parts 121, 122 of a frame hinge part. The attachment of the fitting 100 to the base plate is u.a. in that in the fitting one of the threaded bore 119 in the base plate 101 corresponding and provided with this aligned threaded bore 123 is provided, into which the fixing element 118 is also screwed.

Furthermore, 100 elongated holes 124 are incorporated in the fitting, which are congruent with the oblong holes 113, so that the threaded shaft 115 of the clamping member 114 hineinerstreckt into the slots 124 and the above described displacement possibility of the clamping element is given.

Further, for each clamping element 114, an externally acting against the fitting 100 clamping plate 125 is provided. This has, at the locations of the fixing elements 118 perforations 126, the implementation of a not dargestell- in the drawing th rotary tool for rotational actuation of the fixing 118 serve. Furthermore, an approximately keyhole-shaped opening 127 is provided in the region of the slots 113 and 124, respectively. The region of larger diameter of this opening is provided at the end of the opening at which the clamping element 114 is located when the conical head 116 projects with a part of its circumference into the second undercut 109.

The keyhole-shaped opening 127 serves to receive a second part 128 of the clamping element 114.

The second part 128 of the clamping element 114 comprises a cylindrical outer surface having extension 129, in which a central threaded bore 130 is machined, which is adapted to the external thread of the threaded shaft 115. At the upper end according to item 1, a conical head 131 again adjoins the extension 129. A surface 132 complementary to the conical surface of the conical head is provided on the larger diameter portion of the aperture 127.

The operation of this fitting 100 will now be explained with reference to the figure sequence 1 b - 1 d. As can be seen in Fig. 1 b, which shows the fitting 100 at the beginning of the assembly in the patch 105 mounted state, the pre-assembled by screwing the second part 128 on the threaded shaft 115 clamping element in the slots 113 and 124 completely in the direction of first undercut 108 moved. In this position, the base plate 101 can be inserted into the groove 104 of the profile 105 by engaging the first projections 133 formed by the conical heads 120 of the fixing elements 118 into the first undercut 108. During the insertion process, a sufficiently large clearance is provided transversely to the longitudinal direction of the groove in order to guide a further projection 137 provided on the fitting 100 into a profile projection 136 forming a further undercut 135 outside the groove 104.

After reaching the position of the fitting shown in FIG. 1 b, the preassembled clamping element 114 is brought into the position shown in FIG. 1 c by displacement in the direction of the oblong hole, in which the second projection 134 formed by the conical head 116 of the clamping element 114 is engaged in the second undercut 109. In this position, with the help of a turning tool, not shown in the drawing, the second part will continue on the threaded shaft 115 of Klemmele- ment 114 is screwed until the position shown in Fig. 1 d of the clamping element is reached. Due to the initially punctiform or linear arrangement of the conical surface of the conical head 116 forming the second projection 134 on the surface 138 bounding the second undercut 109, such a high surface pressure can be generated in the profile projection 111 when the second part 128 is tightened in that it deforms plastically and thus produces a positive connection between the conical head and the profile projection 111.

Subsequently, in a corresponding manner by tightening the fixing member 118 also by rotary actuation by means of a rotary tool not shown in the drawing between the fixing member 118 and the first profile projection 110 a positive engagement can be achieved, whereby the load capacity of the fitting in the direction of the groove is increased again.

A disassembly of the fitting 100 is also possible in a simple manner, in which the above steps are reversed accordingly.

In the other exemplary embodiments of the fitting according to the invention described below, only the differences to the above-described fitting 100 should be discussed in order to avoid repetition. The above statements apply analogously therefore also for the embodiments described below. Corresponding components in their action are therefore designated with respect to those of the first embodiment with an enlarged by a hundred times the ordinal number of the respective embodiment reference numeral.

The difference between the second exemplary embodiment of a fitting 200 shown in FIGS. 2 a - 2 d essentially consists in the fact that the second part 228 has a rim 239 projecting radially beyond the conical head 231 with a flat underside 240, as a result of which the clamping forces are distributed over a larger area Clamping 225 initiated and the material stress is reduced.

Another embodiment of a fitting 300 is shown in Figs. 3 a - 3 d.

In the fitting 300, the clamping element 314 is integrally formed. It comprises a conical head 316 with a rim 339 projecting radially over the conical surface. From the conical head extends an externally threaded threaded portion 341, to which a cylindrical outer surface having a projection 342 connects, which has a smaller diameter than the threaded portion 341. At the free end of the extension 342, a radially protruding edge 343 is provided whose diameter is slightly smaller than the core hole diameter of the threaded portion 341.

From the front end of the extension 342, a hexagon socket 344 is incorporated to attack a turning tool, not shown in the drawing.

The clamping element 314 is mounted in an oblong hole-shaped opening 313, which has in the region an adapted to the thread of the threaded portion 341 internal thread corresponding to the position of the clamping member 314, in which formed by the conical head 316 second projection 337 in the second undercut 309th is engaged.

Further, as shown in FIG. 3 b ^' removable - on the front side of the conical head 316, a spring element 346 is provided.

The installation of this attachment 300 is first again by placing the fitting in the manner described with reference to FIG. 1 b, which is referred to in order to avoid repetition. The clamping element 314 is in this case in a position in which the extension 342 is located in the unthreaded part of the slot-shaped opening 313.

Subsequently, with a not shown in the drawing, can be brought into engagement with the hexagon socket 344 tool, the clamping element in its position shown in Fig. 3 c, in which the threaded portion 341 is in continuation of the internal thread 345. The spring element 346, which is supported on the base 306 of the groove 304, in this case causes the edge located between the threaded portion 341 and the extension 342 abuts against the facing edge of the internal thread 345.

If, in this position, the clamping element 313 is now rotationally actuated in the sense of screwing into the internal thread 345 with a suitable rotary tool, it moves into the position shown in FIG. 3 d, in which a seat of the fitting described in detail on the basis of the fitting 100 Profile is effected. A fourth exemplary embodiment 400 of a fitting according to the invention is shown in FIGS. 4 a - b.

In this fitting functional elements - here the hinge parts 421, 422 are integrally connected to the Endbereicheh 403 of the base plate 401. The clamping element 414 in this embodiment comprises a circular base body 447, in which a central threaded bore 448 is incorporated. The diameter of the base body 447 is selected to fit between the profile projections 410, 411. On the region facing the base 406 of the profile 405, radially protruding extensions 449, 450, which form the first and second projections 433, 434, are integrally formed on the base body 447 at an angle of 180 degrees to each other, in other words opposite one another. The extensions 449, 450 are dimensioned such that they can be displaced by 90 degrees into the undercuts 408, 409 by a rotation of the clamping element 414.

The effect of the clamping forces is used in this embodiment, a clamping screw 451 which is screwed into the threaded bore 448. The head 452 of the clamping screw 451 is formed as a cone head. It is supported with its conical surface 453 on a complementary mating surface 454 in the central bore 455 of a circular clamping disk 456.

The mounting of the fitting now takes place in that it is first placed on the profile 405 in the manner already described above, wherein the clamping element is aligned during the Aufsetzvorgangs so that the two extensions 449, 450 point in the direction of the profile 405. This position of the clamping element is shown in Fig. 4 b.

Subsequently, the clamping element 414 is rotated by an angle of 90 degrees, so that the extensions 449, 450 engage in the undercuts 408, 409. In this, in Fig. 4 c position shown now the clamping screw 451 is tightened until the state shown in Fig. 4 d is reached, in which the projections 449, 450, the profile projections 410, 411 engage behind.

FIGS. 5a-e show a fifth exemplary embodiment 500 of a fitting according to the invention. Instead of slots such as in the fitting 100 in this embodiment are circular perforations 513 for receiving the clamping elements 514 in the base plate 501st

The clamping elements 514 are again formed in two parts. The first, mounted in the perforation 513 part comprises a rotationally symmetrical region 557, whose outer diameter is slightly smaller than the inner diameter of the perforations 513, so that the clamping element is freely rotatable about its central longitudinal axis. At the base 506 of the groove 504 facing the end of the clamping element 514 is provided approximately over a quarter circle radially extending extension 550, which forms the second projection 534. Furthermore, a threaded bore 530 is provided in this part of the clamping element 514, at the lower closed end of a hexagon socket 544 is incorporated.

In the threaded hole 530, a clamping screw 551 is screwed, which is supported with the underside of its head 552 at the top of a clamping plate 525. The perforation 558 in the clamping plate 525, which is penetrated by the clamping screw 551, is formed slot-shaped with two mutually parallel sides. The clamping element 514 has, at its end facing the clamping plate 525, two key surfaces 559 adapted to the parallel sides of the perforation 558, which are aligned such that they are in engagement with the edges of the perforation 558 when the second projection 534 of FIG Clamping element 514 away from the second undercut 509 or projects into this.

The fitting of the fitting 500 is now carried out in the manner described above, when the clamping element is rotated to the position shown in Fig. 5 b, in which the extension 550 of the second undercut 509 points away. The clamping element is pressed in this position against the clamping plate 525 by a spring element 546 supported on the base 506 of the groove 504, so that the wrench surfaces 559 are in engagement with the parallel edges of the perforation 558.

As shown in FIG. 5 c, the clamping element 514 can be pushed downwards so far against the elastic force exerted by the spring element 546 that the wrench surfaces 559. Are pressed against the inner hexagon 534 by engagement of a rotary tool (not illustrated in the drawing) are no longer in engagement with the edges of the perforation 558. Subsequently, the clamping element 514 can be brought into the position shown in Fig. 5 b, rotated by 180 degrees, in which the Fort- set 550 engages in the second undercut 509. In this position, the actual clamping operation can take place in that the clamping screw 551 is tightened. In this case, the extension 550 moves upward. Its oblique surface provided in the end region results in the first projection 533 being displaced into the first undercut 508 and a positive engagement being achieved by plastic deformation of the profile extensions.

A further embodiment 600 of a fitting according to the invention is shown in FIGS. 6a-6d.

In the embodiment 600 of the fitting, the second projection 634 is formed by the edge region 660 of a plate-shaped clamping element 614. It has an approximately T-shaped in plan view, wherein the vertical beam of the "T" corresponding part of the clamping element between two the first projections 633 forming fixing 618 extends, the shape and structure of the fixing elements 118, embodiment 100th of the fitting.

The plate-shaped clamping element 614 has, on its side facing the end region 603 of the base plate 601, elevations 661 which are produced by plastic deformation of the plate-shaped clamping element 614 by attack of a pressing tool from the opposite, as shown in FIG. 6 a, lower side of the clamping element 614. By varying the height of the elevations, the clamping element 614 can be adapted to different thicknesses of the profile projections .610, 611. For this purpose, the elevations preferably have a height which corresponds approximately to the thickness of the profile projections 610, 611, so as to avoid tilting into an orientation which is no longer parallel to the base plate 601, which could lead to the edge region 660 forming the second projection 634 from the second undercut 609 slips out during the clamping operation.

The generation of the clamping forces are two clamping screws 651, the holes 627 in the clamping plate 625 and perforations 624 in the hinge parts 621, 622 prevail and screwed into threaded holes 662 in the clamping member 614.

The fastening process will now be described with reference to FIG. 6 b - 6 d. For this purpose, the fitting is placed in the manner already described on the profile 605. The clamping element 614 is here in a position in which the edge area 660 releases the second undercut 609. For engaging the edge region 660 in the second undercut 609, an actuating pin 663 extending through a slot in the hinge part 621, 622 is provided on the clamping element 614.

If the clamping element 614 has been displaced with this actuating pin 663 into that shown in FIG. 6, in which a section through a threaded bore 662 is shown, then the clamping operation can be accomplished by screwing the clamping screws 651 into the threaded bores 662. The perforations 624 and 627 are slightly offset in this position relative to the threaded bores 662 perpendicular to the longitudinal direction of the profile, such that tightening the clamping screws produces a force component that separates the edge region 660 of the clamping element 614 into the second undercut 609 and the hinge parts 621, 622 accordingly shifted in the opposite direction. By this measure, a particularly secure engagement of the projections is effected in the respective associated undercut.

In the embodiment 700 of a hinge part shown in FIGS. 7a-7e, the use of the clamping elements 714, in contrast to the previously described embodiments, the descriptions of which are otherwise referenced, not together with the other components of the fitting 700 but the clamping elements 714, which are formed as a conical head screws 716 with threaded shank 715 and from the end of the threaded shaft .715 hexagon socket 744 for engagement of a rotary tool, are inserted under engagement of the second projections 734 in the second undercuts 709 in the groove 704.

In order to fix the clamping elements 714 in the for the further assembly of the components of the embodiment 700 of the band portion, the clamping elements 714 are connected by means of a positioning aid 763 which can be clamped in the groove 704.

In Fig. 7 a four variants of this positioning aid 763 are shown. The variants I, II and III comprise components made of flat material, which at least partially surround the conical-head screws 716 in the transition region between the head and the threaded shaft and engage in one of the two undercuts 708, 709. Variant IV of the positioning aid, which is particularly easy to manufacture, comprises a component made of spring wire, which in turn is guided around the conical head screws 716 by clamping in the transition region between head and threaded shaft and has sections which neither engage in the first undercut 708 or in the second undercut 709 of the groove 704.

After the clamping elements 714 have been positioned in the groove 704 with the aid of the positioning aid 763, the base plate 701 with pre-mounted fixing elements 718, whose shape corresponds to that of the clamping elements 714, is placed on the profile 705 and displaced so that that of the fixing elements 718 formed first projections 733 engage in the first undercut 708.

In the hinge parts 721, 722 perforations 764 are provided, which serve to receive a second part 728 of the clamping element 714. The perforations 764 have a circular diameter which is flattened on one side to form a key surface.

Accordingly, the second parts 728 have a cylindrical circumference with a complementary key surface 765. They thus rest against rotation in the perforations 764. To accommodate clamping forces, the second parts 728 comprise a radially protruding edge 766, which is supported on the upper side of the hinge parts 721, 722.

The perforations 764 are positioned so that a respective threaded shaft 715 of a clamping element 714 after placing the base plate 701 and the hinge parts 721, 722 on the profile 705 are aligned with provided in the second parts 728 threaded holes 768, as shown in Fig. 7 c is. After inserting the second parts 728 into the perforation 764 (see Fig. 7 d), the clamping element 714 can now be rotationally actuated until the clamping position shown in Fig. 7 e is achieved.

Another particularly preferred embodiment 800 is shown in FIGS. 8a-8e. The embodiment of the base plate 801 in this case corresponds to the base plate 701 of the embodiment 700. In contrast to the embodiment 700, however, the perforations 864 are formed such that their diameter according to FIG. 8 a downwards, ie tapers towards the base plate 801. Correspondingly, the second parts 828 of the clamping element 814 have a downwardly tapered, cone-shaped outer circumference 867, so that they are supported with their peripheral surface on the inner circumference 869 of the perforations 864. Furthermore, a key area 865 is provided on the outer circumference of the second parts 828, which in the profile 805 on the set state cooperates with the profile projection 811 and thus leads to a rotation.

The assembly of this embodiment will now be described with reference to FIGS. 8 b - 8 e. First, the hinge parts 821, 822 preassembled with the base plate 801 and the fixing elements 818 are brought into the position shown in Fig. 8b. Subsequently, the preassembled clamping element 814 is introduced by slight tilting, as indicated in Fig. 8b, through the perforation 864 in the groove 804, as shown in Fig. 8 c. After reaching the position shown in FIG. 8 d, the conical head screw 816 of the clamping element 814 is tightened until the clamping position shown in FIG. 8 e is reached. The key surface 865, which is supported on a straight surface of the profile, causes the second part 828 of the clamping element 814 not to rotate.

As can be seen from the above description, a particularly simple mounting to a profile is possible with the embodiment 800 of a fitting according to the invention. In addition, this embodiment is characterized by a particularly small number of components as well as the fact that over the outer surface 866 of the fastening part no components survive and thus this fitting requires only a small installation space. Distances between adjacent profiles can thus be kept very small.

LIST OF REFERENCE NUMBERS

100 fittings

101 base plate

102 center area

103 end areas

104 groove

105 professional!

106 base

107 outer surfaces

108 undercuts

109 undercuts

110 profile projections

111 profile projections

112 advantage

113 long holes

114 clamping element

115 threaded shaft

116 cone head

117 key areas

118 fixing element

119 threaded hole

120 cone head

121 hinge part

122 hinge part

123 tapped hole

124 long holes

125 clamping plate

126 perforations

127 breakthrough

128 second part ^■

129 extension

130 threaded hole

131 cone head

132 area 1

133 first protrusions

134 second lead

135 more undercuts

136 profile projection

137 further advantage

138 area

200 fitting

225 clamping plate

Second part

239 edge

240 bottom

300 fitting

304 groove

306. Basis

309 second undercut

313 slot-shaped opening

314 clamping element

316 cone head

337 further advantage

339 edge

341 threaded section

342 extension

343 edge

344 hexagon socket

345 internal thread

346 spring element

400 fitting

401 base plate

403 end areas

404 groove

405 profile

406 base

408 undercut

409 undercut

410 profile projection

411 profile projection

414 clamping element 2

421 hinge part

422 hinge part

433 first advantage

434 second lead

447 basic bodies

448 threaded hole

449 extension

450 extension

451 clamping screw

452 head

453 conical surface

454 mating surface

455 bore

456 clamping disc

500 fittings

501 base plate

504 groove

506 base

508 first undercut

509 second undercut

513 perforation

514 clamping elements

525 clamping plate

530 threaded hole

533 first lead

534 second lead

544 hexagon socket

546 spring element

550 extension

551 ^■ Clamping screw

552 head

557 area

558 perforation

559 key areas

600 fitting

601 base plate

603 end areas 2

605 profile

609 second undercut

610 profile projection

611 profile projection

614 clamping element

618 fixing elements

621 hinge part

622 shaman part

624 perforations

625 clamping plate

627 perforations

633 first lead

634 second lead

651 clamping screws

660 border area

661 surveys

662 threaded holes

663 actuating pin

700 fitting

701 base plate

704 groove

705 profile

708 first undercut

709 second undercut

714 clamping element

715 threaded shaft

716 cone head screw

718 fixing elements

721 hinge part

722 hinge part

728 second part

733 first protrusions

734 second protrusions

744 hexagon socket

763 Positioning aid

764 perforations

765 key area 766 edge

768 threaded holes

800 fitting

801 base plate

804 groove

805 profile

811 profile projection

814 clamping element

816 cone head screw

818 fixing element

821 hinge part

822 hinge part

828 second parts

864 perforation

865 key area

867 cone-section-like outer circumference

869 inner circumference

Claims

claims:

1. Fitting (100, 200, 300, 400, 500, 600, 700, 800), in particular for a band, for fastening in an undercut groove (104, 204, 304, 404, 504, 604, 704, 804) of a Metal or plastic profiles of windows, doors or the like or of their frames, with a first projection (133, 233, 333, 433, 533, 633, 733, 833), which in a first undercut (108, 208, 308, 408 , 508, 608, 708, 808) of the groove (104, 204, 304, 404, 504, 604, 704, 804) is engageable, and with at least one clamping element (114, 214, 314, 414, 514, 614, 717,

814) comprising a second projection (134, 234, 334, 434, 534, 634, 734, 834) which is inserted into the first undercut (108, 208, 308, 408, 508, 608, 708,

808) is engageable in a second undercut (109, 209, 309, 409, 509, 609, 709, 809) opposite the first undercut, characterized in that the second projection (134, 234, 334, 434, 534, 634, 734, 834) in the in the second undercut (109, 209, 309, 409, 509, 609, 709, 809) inserted- position against the second undercut outwardly delimiting surface is clamped bar.

2. Fitting according to claim 1, characterized in that the clamping element (114, 214, 314, 414, 514, 614, 714, 814) one in the

Fitting (100, 200, 300, 400, 500, 600, 700, 800).

3. Fitting according to claim 2, characterized in that the clamping element (114, 214, 314, 414, 514, 614, 714, 814), directly or indirectly on one of the fitting (100, 200, 300, 400, 500 , 600, 700, 800) supported clamping surface.

4. Fitting according to claim 3, characterized in that the clamping element (114, 214, 314, 414, 514, 614, 714, 814) a on the clamping surface supporting part (128, 228, 428, 528, 628, 728, 828) and a part comprising the second projection and the two parts engage in one another via threads.

5. Fitting according to claim 4, characterized in that the second projection (134, 234, 334, 434, 534, 634, 734, 834) comprising part means for attacking a turning tool.

6. Tape according to claim 5, characterized in that the means comprise a central hexagon.

7. Fitting according to claim 5 or, characterized in that on the clamping surface supporting the second part (128, 228, 428, 528, 628, 728, 828) comprise an opening for the passage of the rotary tool.

8. Fitting according to one of claims A to 7, characterized in that the ah of the clamping surface supporting part (728, 828) of the Klemmele- element is mounted against rotation.

9. Fitting according to claim 8, characterized in that the clamping element comprises a with a key surface on the fitting or on the profile operatively engageable key surface (1 17, 765, 856).

10. Fitting according to one of claims 3 to 9, characterized in that the clamping surface of the inner peripheral surface of a perforation (864) is formed, whose diameter decreases in the clamping direction. ,

25

11. Fitting according to claim 10, characterized in that the clamping element comprises a cone-shaped outer circumference (867).

12. Fitting according to one of claims 1 to 11, characterized in that the second projection (134, 234, 334, 434, 534, 634, 734, 834) comprises a relation to the second undercut limiting surface inclined clamping surface.

13. Fitting according to claim 12, characterized in that the clamping surface of the extension is a conical surface.

14. Fitting according to one of claims 4 to 13, characterized in that means for pre-positioning of the second projection comprehensive part of the clamping member is provided in the engaged position in the second undercut position.

15. Fitting according to claim 2, characterized in that the clamping element (314) starting from the projection over a part of its length has an external thread (341) that the fitting into the fitting

, In the area corresponding to the position of the clamping element in which the second projection (337) is engaged in the second undercut (309), an internal thread (345) adapted to the external thread is provided is.

16. Fitting according to claim 15, characterized in that the non-threaded portion of the slot-shaped opening (313) has a width which is smaller than the diameter of the internal thread (345) that the diameter of the threadless extension (3429 of

Clamping element is slightly smaller than the width of the slot-shaped opening (313) and that at the free end of the threadless extension (342) of the Clamping elements (314) is provided a radially protruding edge whose outer diameter is greater than the width of the unthreaded portion of the long-hole-shaped opening (313) and smaller than the core hole diameter of the internal thread (345).

17. Fitting according to claim 15 or 16, characterized in that on the projection-side end of the clamping element (314) is provided a spring element (346) which rests on the base (306) of the groove (304).

18. Fitting according to one of claims 1 to 17, characterized in that the first projection (133, 233, 333, 433, 533, 633, 733, 833) is formed by a conical surface.

19. Fitting according to claim 18, characterized in that the conical surface is formed on the head of a rotatable from the outside of the fitting screw.

20. Fitting according to one of claims 1 to 19 for attachment to a further undercut (135) outside the groove having profile, characterized in that the fitting comprises a further, the undercut (135) engages behind another projection (137).