EP1375799A2 - Fitting to be clamped on a profile - Google Patents

Abstract

A mounting part for clamping attachment to structures with at least a back cut side wall comprises a clamping piece with a threaded screw attachment. The shaft (48) of the screw (4) grips an opening in the clamp (6) and screws into a pressure piece (5) by its free end (49) and presses the part in place.

Description

The invention relates to a fitting part for clamping attachment on profiles with at least one undercut Side wall, the fitting part has at least one clamping piece for Clamp the undercut side wall reaches behind by means of a screwing device, and the screw device at least has a threaded screw on the fitting part attacks.

DE 36 26 451 C2 is a fitting part for Clamping on profiles known. To attach on an undercut side wall of a Profile of a window or the like is one Clamping provided a screw device having. This has a tumbling in threaded screw inserted into an opening of the fitting part, into a threaded hole in a sprag is screwed in. When assigning the fitting part to the profile the clamping piece engages in the The inside of the profile and - when tightening the threaded screw - towards the undercut Sidewall of the profile moves, being the undercut Reaches behind the side wall and at the same time on a parallel to the longitudinal axis of the threaded screw extending support surface of the fitting part supported. The clamp components are matched to the special profile so that the fitting is only a few of the multitude of Allocate customary profiles on the market.

The invention is therefore based on the object To create a fitting part of the type mentioned at the beginning, which can be used in a variety of ways because it is on profiles of all kinds can be easily clamped is. With the different profiles is only the formation of an undercut Sidewall required.

According to the invention, this object is achieved by that the shaft of the threaded screw has an opening reaches through the clamping piece and with their free End is screwed into a pressure piece that the Tighten the threaded screw against the clamping piece one transverse to the longitudinal axis of the threaded screw, with respect to the longitudinal axis of the threaded screw of the side wall facing stop of the fitting part urges. The screwing device acts according to the invention not directly on the clamp around the Clamp on the profile, but on a pressure piece into which the at least one threaded screw is screwed in and when tightening the screw applied to the clamping piece and into the Clamping position is urging. This is one "highly flexible" mounting of the clamping piece ensured, i.e. it can be different when putting on the Move the clamping device within wide areas and will correspond to the geometric Arrange the design of the profile and get out take the position resulting from the circumstances. there is also important that the clamping piece when tightening the threaded screw against the stop is pushed. This leads to a pivoting movement of the clamping piece and thus the one Reaching behind the profile favoring movement. If the profile requires extensive intervention by the Clamping piece, so the clamping piece is far in this engaging position slip, taking the influence is subject to free forces because the screwing device not directly, but indirectly through that Pressure piece works. The clamp can be relative to the pressure piece in the respectively necessary manner relocate. The freedom of movement of the clamping piece is only limited by the size of the opening, which is penetrated by the threaded screw. The Threaded screw can be relatively close to the fitting part be guided and still leaves the sprag bearing large relocation movements too. If at a self-aligning bearing is provided, i.e. the threaded screw can assume different angular positions. Since moreover through the pressure piece a relatively large Relocation zone available for the clamping piece is a particularly "free" suspension of the Clamp realized that this extends in wide Optimal play when tightening the clamp can position and essentially the clamping forces apply so force components by the screw device are generated, but as "transverse forces" are classified for tightening the Fitting part on the profile are not very effective can be kept small.

The fitting part is preferably around hinges, in particular corner hinges for windows, doors and the like, with these corner bands preferred on aluminum profiles by means of a clamp be determined, i.e. those considered here Windows, doors or the like have metal profiles, especially aluminum profiles. Leave it for example, scissor stay and corner bearings the invention on profiles of different cross-sectional contours define, only the undercut Sidewall must be realized in order bring about the rear grip of the clamping piece can.

According to a development of the invention, that the contact surface of the pressure piece and Clamping piece on the pressure piece and / or on the clamping piece in transversely, in particular approximately at right angles, to the longitudinal extent of the profile extending direction convex is arched. Unless one of the two Contact surfaces, i.e. on the pressure piece or on the clamping piece the convex curvature can simple angular alignment of the two adjacent parts (pressure piece and clamping piece) to adjust. The parts will change accordingly even with low clamping force in itself relocating position. In particular, can be provided that even both parts, that is Pressure piece and clamping piece, have a surface, which is convex to the outside and the Represent the contact surfaces of both parts.

According to a development of the invention, that the threaded screw to the inner bottom surface the profile an acute angle, in particular an angle in the range of 5 ° to 30 °, preferably an angle in the range of 10 ° to 20 °, such includes the vertical distance of the free End of the threaded screw to the bottom surface smaller is the vertical distance from your head to the floor. The longitudinal axis of the threaded screw runs thus slightly inclined to the inner floor surface of the profile. This makes the angle between the Longitudinal axis of the threaded screw and the associated one Sidewall of the profile from 90 °. This measure supports the rear grip of the clamping piece on the undercut side wall.

As already mentioned, the profile must have at least one have undercut side wall. this includes is to understand a contour that the clamping piece allowing an attack. It is the profile, for example, around a C-profile the two side walls together with the bottom wall (which has the inner bottom surface) a U, end walls emanating from the ends of the U's are directed towards each other and in interaction with the associated sidewall the required distinction produce. By attacking one of the The fitting can be securely attached to the profile of end walls become. In the course of this registration, for this formation the term "undercut sidewall" used.

The clamping piece preferably has at least one hook-shaped Extension for reaching behind the undercut Sidewall on. This extension is preferably formed in one piece on the clamping piece and aligned in such a way that it grips securely underneath the end wall or the like of the profile is guaranteed. Through the hook-shaped extension has the clamping piece - viewed in cross section curved or an L-shaped cross-sectional structure, which favors a safe hold.

It is also advantageous if the opening of the Clamping piece is designed as an elongated hole, the Longitudinal extension across, in particular at right angles, extends to the longitudinal extent of the profile. The Elongated hole allows the clamping piece to be moved in wide areas, with the elongated hole orientation a preferred direction for relocating of the clamping piece is created, namely a Tightening the screwing device towards the undercut side wall, so that the safest possible grip comes about. A particularly resilient and too the measure to improve the clamping provides that the clamping piece with a cross, especially at right angles or approximately at right angles to the screw axis running surface pushed against the stop becomes. The location of the surface ensures a connection with the attack training that in the course pivoting the tightening of the screwing device of the clamping piece takes place, i.e. it sets with the surface at the stop and swiveled in In the course of further tightening around the stop, whereby in the course of this pivoting movement, the clamping piece, in particular its hook-shaped extension, towards the end wall (undercut side wall) emotional.

In order to achieve a "wedge effect", this is Clamping piece - in the direction of the longitudinal extension of the Profiles and from the free end of the threaded screw made from viewed - curved convex. This Bow causes that when tightening the screw device the clamp with his first free ends on the profile, the middle of the Clamping piece thus "lies hollow". In the course of the further The center of the clamping piece will then also be tightened pressed against the profile, the ends but with their edges already a claw effect could develop, on the one hand, an undesirable Relocate when tightening the screw device prevent and on the other hand also the position additionally secure the fitting part to the profile.

To further secure the position of the fitting on Profile can be provided that the clamping piece at least in its end areas on the contact surface / den Contact areas with the profile with a Embossed pattern or the like is provided. This Embossed pattern ensures leading points on the profile Line touches, even with smaller ones from the clamping forces applied to the screwing device a lateral sliding of the fitting on Prevent profile. Finally, it is envisaged that the clamping piece at least two, at a distance from each other lying openings for the passage of one has the corresponding number of threaded screws, preferably the pressure piece at least two threaded holes spaced apart for screwing in the threaded screws. The threaded screws are spaced about the length of the pressure piece or clamping piece arranged and therefore represent a large area Clamp securely over the longitudinal extent, see above that selective pinching is impossible. This improves the holding properties. Furthermore an anti-rotation device is formed if several Threaded screws screwed into the pressure piece are or openings of the clamping piece succeed. Then there are no additional measures to take to twist the clamp or of the pressure piece when tightening the screw device to prevent.

Figur 1

einen Querschnitt durch ein Beschlagteil, das mittels Klemmbefestigung an einem Profil festlegbar ist,

Figur 2

eine Draufsicht auf ein Klemmstück des Beschlagteils der Figur 1,

Figur 3

eine Stirnansicht auf das Klemmstück der Figur 2,

Figur 4

eine Seitenansicht des Klemmstücks der Figur 2,

Figur 5

eine Draufsicht auf ein Druckstück des Beschlagteils der Figur 1,

Figur 6

eine Stirnansicht auf das Druckstück der Figur 5,

Figur 7

eine Seitenansicht des Druckstücks der Figur 5 und

Figur 8

eine der Figur 1 entsprechende Darstellung.

The drawing illustrates the invention with the aid of an exemplary embodiment and shows:

Figure 1

3 shows a cross section through a fitting part which can be fixed to a profile by means of a clamp,

Figure 2

2 shows a plan view of a clamping piece of the fitting part in FIG. 1,

Figure 3

3 shows an end view of the clamping piece of FIG. 2,

Figure 4

3 shows a side view of the clamping piece of FIG. 2,

Figure 5

2 shows a plan view of a pressure piece of the fitting part in FIG. 1,

Figure 6

3 shows an end view of the pressure piece of FIG. 5,

Figure 7

a side view of the pressure piece of Figure 5 and

Figure 8

a representation corresponding to Figure 1.

According to Figure 1, the fitting part 1 has a Screw device 2 for clamping attachment to one Profile 3 of a window, door or the like on. The screw device 2 are two threaded screws 4 (in FIG. 1 there is only one threaded screw 4 shown), a pressure piece 5 and a Clamp 6 assigned.

Profile 3, which is preferably made of aluminum has a lateral contact surface 7 and one or several contact surfaces on the front 8. The profile 3 is designed as a C-profile 9 and therefore has two side walls 10, 11, which together form a bottom wall 12 is assigned. The bottom wall 12 has an inner bottom surface 13 to which the two Side walls 10 and 11 are rectangular. The Ends of the two side walls 10 and 11 go in End walls 14, 15 over, facing each other are. The end walls 14 and 15 form with the side walls 10, 11 quasi undercut side walls 10, 11 off, i.e. engages a fastener, such as the clamping piece 6, in the interior 16 of the C-profile 9th one, so the clamping piece 6 - as from FIG. 1 the undercut side wall 11 can be seen reach behind, that is, on the inner surface 17 of the Support end wall 15. Additional may be a contact with the inner wall 18 of the side wall 11 given.

Fitting part 1 is a corner hinge 19 as aluminum, which has a bearing surface 20 and One or more support surfaces at right angles 22 has. The one assigned to the support surface 22 Wall 23 of the fitting part 1 is with an opening 24 provided in the part of the pressure piece 5, the clamping piece 6 and the threaded screws 4. In the corner area 25 this shows in cross section essentially L-shaped or Z-shaped designed fitting part 1 two threaded screw head seats on, each form a level 27. At each stage 27 there is a bore 28 for the threaded screw 4, the two holes 28 open into the opening 24 and the central axes 29 of the bores 28 an acute angle α to Include inner bottom surface 13. The central axis 29 corresponds to the respective longitudinal axis 30 of FIG associated threaded screw 4. The free ends of the Threaded screws 4 are on the opposite End wall 14 of the C-profile 9 directed. The order is such that the free ends 49 of the Threaded screws 4 a distance from the opposite Has side edge 50 of the opening 4.

According to FIGS. 2 to 4, the clamping piece 6 has which is designed as a stamped sheet metal part, essentially 4 on flat base part 31, of which - in one piece - a hook-shaped extension 32 is turned. Close base part 31 and extension 32 an obtuse angle β. The outer contour of the clamping piece 6 is - according to Figure 2- essentially rectangular with a lower edge 33 and side edges 34, 35 formed, the upper edge 35 'is stepped, so that a one-piece, protruding tongue 36 is formed. The tongue 36 is penetrated by two elongated holes 37, 38, their longitudinal extensions parallel to the Side edges 34, 35 and accordingly rectangular run to the lower edge 33. The two end areas 39, 40 of the extension 32 are with embossing patterns 41 provided. The one on the right in FIG. area provided with embossing pattern 41 indicated by the dashed frame Z.

From Figure 3 it can be seen that the clamping piece 6 is designed arcuate, the arc shape is shown exaggerated in Figure 3. The arrangement is such that the dimension x, that characterizes the arch shape means that the clamping piece 6 a bias when tensioning with profile 3, i.e. the two end areas 39 and 40 hit profile 3 first on and in the course of further tension the Arc shape of the clamping piece 36 returned until about there is a flat shape. That way the notch effect of the end corners causes slipping and moving the clamping piece in the direction of the double arrow Y when bracing on profile 3 avoided.

The pressure piece 5 of Figures 5 to 7 has -in the Side view of Figure 7 seen - about a T-profile on, creating an investment area 42 and a Reinforcement area 43 are formed. The investment area 42 is curved outward with a convex Provided contact surface 44. Two threaded holes 45, 46 pass through the pressure piece 5, their Central axes 47 according to FIG. 7 transverse to the contact surface 44 run. The pressure piece 5 preferably has 5 has a width b that is the width corresponds to the tongue 36. The height h of the pressure piece 5 is preferably chosen such that it is of length corresponds to the tongue 36 of the clamping piece, that is Distance between the edge associated with the tongue 36 35 'to the extension 32. Are pressure pieces 5 and Clamping piece 6 on top of one another, so that the tower Extension 32 of the clamping piece 6, the pressure piece 5.

When assembled, the threaded screws are 4 in the bores 28 of the corner hinge 29 in such a way inserted that their heads 47 in the threaded screw head seats 26 inlay. On the shafts 48 of the threaded screws 4 is the clamping piece 6 by means of of the elongated holes 37, 38 and the free ends of the threaded shafts 48 are in the threaded holes 45 and 46 of the pressure piece 5 screwed in. Pressure piece 5 and clamping piece 6 accordingly have one corresponding to FIG. 1 Position on, i.e. the tongue 36 of the clamping piece 6 and the pressure piece 5 are within the opening 24 of the fitting part 1. In this The fitting part is delivered preassembled. Therefore parts cannot be lost. According to Figure 1-, it should now be fixed to profile 3 become. The fitter arranges the parts for this such that the fitting part 1 with its bearing surface 20 on the lateral contact surface 7 of the Profile is applied. The support surfaces are also located 22 and front contact surfaces 8 on top of each other. In this position shown in FIG. 1 at least the extension 32 engages in the interior 16 of profile 3. The side edge 51 of the opening 24 forms the threaded screws 4 on one side a stop 52. On the with respect to the longitudinal axes 32 of the threaded screws 4 lying others This stop 52 is on the side of the threaded screws 4 unavailable. Now the fitter pulls the threaded screws 4 with a suitable head 47 attaching tool, so it shifts Pressure piece 5 in the direction of the heads 47 and takes the clamp 6 with. The relocation takes place until the essentially flat side 53 of the Clamping piece 6, which is transverse, in particular rectangular, runs to the longitudinal axis 30 of the threaded screws 4, hits the stop 52. Since the contact surface 44 the pressure piece 5 is convexly curved, can the clamping piece 6 due to the system at the stop 52 very easily pivot so that the extension 32 in the direction of the inner surface 17 of the end wall 15 moves and in so far as Behind the side wall 11 of the profile 3 is done. Due to the slightly curved design of the clamping piece 6 (Figure 3) and the embossing pattern 41 (Figure 2), the clamping piece 6 by tightening the screwing device 2 securely on the profile 3 fixed and in this way the fitting part 1 securely and immovably clamped to the profile 3. The bearing surface 20 is firmly on the lateral contact surface 7 pressed and it takes place pressing the support surfaces 22 and contact surfaces 8 to each other.

Due to the invention there are no loose items the fitting part 1 before assembly, but the parts are pre-assembled. By simple assignment of the fitting part 1 to the profile 3 and tightening the screw device 2 is a non-slip and safe assembly possible. By in wide range displaceable clamp 6 is a Attack on profile 3 on all relevant profile systems available on the market. Various Hardware parts with different Clamping pieces therefore do not have to be used, so that the storage is simplified. By the one-way stop 52 is when tightening a pivoting of the screw device 2 brought about the clamping piece 6, so that this under Areas of the profile 3 pivoted and an optimal Clamping effect unfolds.

According to Figure 8, the dimensions I and J are one on the other tunable so that there is a good balance from load arm to power arm results in one effect optimal clamping. The dimension I is the vertical Distance between the longitudinal axis 30 of the threaded screw 4 and the stop 52. The dimension J determines the vertical distance between the longitudinal axis 30 of the screw 4 and the extension 32nd of the clamping piece 6. Depending on the ratio of dimensions I and J to each other, the clamping is more likely can be interpreted as force-translated or translated away. The abutment of the clamping piece 6 at the stop 52 can itself during the pivoting of the clamping piece 6, that is when tightening the screw device 2, constantly reduce (dimension J), so that the power transmission increases or the path translation reduced and at the end of the clamping process greatest possible force is applied. Because of the pivot mechanism according to the invention is thus a bracing using favorable leverage laws in front. This is also due in particular deflecting the straight-line screwing force in the mentioned pivoting movement of the clamping piece 6 brought about. That because of the invention Construction of relatively small dimension K in FIG. 8 indicates another advantage of the invention Subject, since here only a very small one Space is required. The dimension K defines the vertical distance between the stop 52 and the support surface 22 of the fitting part 1.

Claims (10)

Fitting part for clamping attachment to profiles with at least one undercut side wall, the fitting part having at least one clamping piece that grips behind the undercut side wall for the clamping attachment by means of a screwing device, and the screwing device has at least one threaded screw that engages the fitting part, characterized in that the Shank (48) of the threaded screw (4) passes through an opening of the clamping piece (6) and is screwed with its free end (49) into a pressure piece (5) which, when the threaded screw (4) is tightened, the clamping piece (6) against a cross to the longitudinal axis of the threaded screw (4), with respect to the longitudinal axis (30) of the threaded screw (4) of the side wall (11) facing away stop (52) of the fitting part (1) urges. Fitting part according to claim 1, characterized in that the contact surface (44) of the pressure piece (5) and the clamping piece (6) on the pressure piece (5) and / or on the clamping piece (6) transversely, in particular at right angles, to the longitudinal extent of the profile (3) extending direction is convex. Fitting part according to one of the preceding claims, characterized in that the threaded screw axis (30) to the inner bottom surface (13) of the profile (3) has an acute angle (α), in particular an angle in the range from 5 ° to 30 °, preferably an angle in Range from 10 ° to 20 °, includes such that the vertical distance of the free end (49) of the threaded screw (4) to the bottom surface (13) is smaller than the vertical distance of its head (47 ') to the bottom surface (13). Fitting part according to one of the preceding claims, characterized in that the clamping piece (6) has at least one hook-shaped extension (32) for engaging behind the undercut side wall (11). Fitting part according to one of the preceding claims, characterized in that the opening of the clamping piece is designed as an elongated hole (37, 38), the longitudinal extent of which extends transversely, in particular at right angles, to the longitudinal extent of the profile (3). Fitting part according to one of the preceding claims, characterized in that the clamping piece (6) is pressed against the stop (52) with a surface (53) which runs transversely, in particular at right angles or approximately at right angles to the threaded screw axis (30). Fitting part according to one of the preceding claims, characterized in that the clamping piece (6) is designed to be convex when viewed in the direction of the longitudinal extent of the profile (3) and from the free end (49) of the threaded screw (4). Fitting part according to one of the preceding claims, characterized in that the clamping piece (6) is provided with an embossed pattern (41) at least at its end regions (39, 40) on the contact surface / the contact surfaces with the profile (3). Fitting part according to one of the preceding claims, characterized in that the clamping piece (6) has at least two spaced-apart openings for the passage of a corresponding number of threaded screws (4). Fitting part according to one of the preceding claims, characterized in that the pressure piece (5) has at least two spaced-apart threaded bores (45, 46) for screwing in a corresponding number of threaded screws (4).

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