System with an assembly aid for a façade substructure

Abstract

The invention relates to a system (1) with an assembly aid (16) for a facade substructure. The assembly aid (16) comprises a guide (20) by which it can be inserted into the opening (8) of a profile (2) and is slidable relative to the profile (2). A transverse bolt (27) to be attached to the profile (2) can be positively inserted into a receiving device (23) of the assembly aid (16). The receiving device (23) aligns the transverse bolt (27) orthogonally to a longitudinal direction (3) of the profile (2). By sliding the assembly aid (16), the position of the transverse bolt (27) relative to the profile (2) is adjusted. Subsequently, the transverse bolt (27) can be fixed to the profile (2) by screwing in self-drilling screws (31).

Description

[0001] The invention relates to a system with an assembly aid for a facade substructure with the features of claim 1, and to an assembly method using such a system with the features of claim 10. Facade substructures (SUs) serve as a support system for ventilated, rainscreen facade elements on buildings. The SUs thus attach the facade elements or photovoltaic panels (PV panels) to a building, usually a building wall. The SUs are typically connected to the building wall by means of wall brackets. Facade elements or PV panels to be attached are usually fastened by hooking them onto the respective SU. For this purpose, transverse bolts are often provided on the SU, into which the facade elements or PV panels are hooked with a corresponding counterpart. The transverse bolts must be attached to the SU at a specific angle and at a certain height, or position.The assembly, or rather the correct adjustment of the cross bolts on the UK, is often time-consuming. In particular, adjusting the cross bolts takes a relatively long time.

[0002] The object of the invention is to propose a system comprising an assembly aid by means of which simple and quick assembly of such transverse bolts to substructures is possible. A further object of the invention is to propose an assembly method using such a system. These objects are achieved according to the invention by a system with the features of claim 1 and by a method with the features of claim 10. The system according to the invention comprises a U-shaped profile, an elongated fastening element, in particular a transverse bolt, and an assembly aid for fastening the fastening element to the profile. The profile is in particular an aluminum profile and extends in a longitudinal direction. It has a first side surface, a second side surface opposite the first side surface, and a base surface connecting the first and the second side surfaces.In particular, the side surfaces are parallel to each other and oriented orthogonally to the base. This results in the U-shaped profile. Specifically, both side surfaces have the same height relative to the base. An opening in the profile is formed between the first and second side surfaces, bounded by the base and the two side surfaces. A flange surface adjoins the opening of both the first and second side surfaces, each oriented away from the opening. Specifically, the flange surfaces are oriented orthogonally to the side surfaces. Specifically, the flange surfaces have grooves on their upper surfaces, extending through the centers of the respective flange surfaces and parallel to the flange surfaces. These grooves facilitate the insertion of a self-drilling screw. The "center points" refer to the respective centers of the respective flange surfaces.The upper surfaces of the flanges face away from the base of the profile.

[0003] The elongated fastening element is, in particular, a transverse bolt. This bolt has a substantially cylindrical shape without a thread. Preferably, the transverse bolt has a flat contact surface on one circumferential side at each of its opposing end regions for contact with the flange surfaces. In these end regions, the shape of the transverse bolt can therefore deviate from the predominantly circular cylindrical shape. Specifically, the widths of the flat contact surfaces correspond to the widths of the respective flange surfaces. This allows the transverse bolts to rest firmly against the flange surfaces with their flat contact surfaces. In particular, the width of the cylindrical portion of the transverse bolt between the flat contact surfaces corresponds to the width of the opening perpendicular to the longitudinal direction of the profile, thus forming a kind of sliding guide for the transverse bolt along the opening.This design of the transverse bolt allows for orthogonal alignment of the transverse bolt with respect to the profile and also prevents the transverse bolt from rotating relative to the profile. The flat contact surface can also extend over the entire length of the transverse bolt, or the fastening element, although in this case the anti-rotation feature is omitted. The flat contact surfaces generally serve to ensure that the transverse bolt rests securely on the flange surfaces without tilting. In particular, the length of the fastening element corresponds to the overall width of the profile, where "overall width of the profile" refers to the distance between the outer edges of the flanges, or the flange surfaces. The transverse bolts are preferably made of aluminum. For the sake of simplicity, the following text will refer only to the transverse bolt as the fastening element, although this does not restrict the use of such transverse bolts to this type.

[0004] The assembly aid comprises a base body. A guide is formed on the base body, allowing the assembly aid to be slid along the profile in its longitudinal direction, particularly with a close fit, especially a clearance fit. The guide can partially engage in the opening and / or overlap the rail. Preferably, the guide is designed such that the assembly aid, particularly when the rail is oriented vertically, holds itself against gravity on the rail. This has the advantage that a transverse bolt to be inserted into the assembly aid does not need to be manually held in position. For this purpose, the guide can be designed with a slight clamping action. Optionally or additionally, clamping or braking elements, for example made of a rubber material, can be provided to hold the otherwise clearance-fit assembly aid in a desired position on the rail.The guide only allows movement of the assembly aid along the profile in the longitudinal direction of the profile.

[0005] The base body has a receiving device for the transverse bolt, such that the transverse bolt can be arranged in the receiving device and aligned orthogonally with respect to the longitudinal direction of the profile and orthogonally with respect to the longitudinal direction of the side surfaces of the profile. In particular, the transverse bolt is self-retaining or self-clamping in the receiving device. This means that the transverse bolt cannot detach itself from the receiving device. In particular, the transverse bolt is held in the receiving device by a positive locking and / or force locking mechanism. The shape of the receiving device corresponds in particular to the shape of the transverse bolt. Rubber inserts can be provided to fix the transverse bolt in a desired position in the receiving device and thus with respect to the assembly aid.The receiving device can also be designed as a type of click or snap connection with one or more click or snap connectors into which the transverse bolt can be inserted.

[0006] The advantage of the system according to the invention lies particularly in the fact that a fastening element, especially a transverse bolt, arranged in the mounting aid can be easily aligned with respect to the profile and mounted on it. One hand is sufficient to move the mounting aid along the profile, thus positioning the transverse bolt at the desired location relative to the profile. Due to the particularly self-clamping guide, the mounting aid, and therefore the transverse bolt, automatically holds itself in the set position. Because the receiving device, after the mounting aid has been inserted into the profile, automatically aligns the transverse bolt orthogonally with respect to the longitudinal direction of the rail and orthogonally with respect to the longitudinal direction of the side surfaces of the profile, there is no need to pay attention to the orientation of the transverse bolt relative to the profile. This is achieved automatically by the mounting aid.Once the desired position is set, the cross bolt can be secured to the profile, particularly by screwing it in place. The mounting aid can then be removed from the cross bolt and the profile. To facilitate setting the desired position, the base body can include markings, such as a scale (e.g., a millimeter scale). Using a laser, especially an alignment laser, in conjunction with these markings, precise positioning of the mounting aid, and thus of the cross bolt, on the profile can be achieved.

[0007] In a preferred embodiment of the invention, the transverse bolt has a screw opening at opposite ends, or in opposite end regions, for receiving a screw. The distance between the screw openings is greater than the distance between the flange surfaces, in particular substantially equal to the distance between the center points of the flange surfaces, or to the distance between the respective grooves on the flange surfaces. The distance between the flange surfaces is, in particular, identical to the width of the opening in the profile. The aforementioned grooves run through the center points. Because the distance between the screw openings preferably corresponds to the distance between the center points, it is ensured that the screws used for fastening are always centered in the respective flange surfaces. The grooves ensure the centering of a screw tip, in particular the cutting edge of a self-drilling screw.The screw holes can serve as guides for the screws to be used, particularly self-drilling screws. For this purpose, the transverse bolt can be positioned in the mounting device such that the axes of the screw holes are oriented essentially orthogonally to the flange surfaces or the base surface. Since the transverse bolt is held in the mounting device in a self-clamping manner, and the mounting aid preferably holds itself to the profile in a self-clamping manner, one-handed assembly is possible. To secure the transverse bolt, self-drilling screws, in particular, simply need to be turned through the holes. These screws cut into the profile and thus connect the profile to the transverse bolt. The diameter of the self-drilling screws preferably corresponds to the diameter of the screw holes, such that the screw holes serve as guides for the self-drilling screws.

[0008] In a further preferred embodiment of the invention, the receiving device is formed by a groove-like recess in the base body. The recess preferably extends transversely to the opening of the profile, i.e., transversely to the longitudinal direction of the profile, when the mounting aid is inserted into or placed on the profile. The shape of the recess preferably corresponds to the shape of the transverse bolt such that the transverse bolt is held snugly and / or with slight clamping force in the recess. In particular, the shape of the recess is correspondingly semicircular and designed as a kind of cup for the transverse bolt. The groove-like recess ensures that the transverse bolt remains in position relative to the profile when the self-drilling screws are screwed into the transverse bolt.Furthermore, it is possible that, when the mounting aid is placed on the profile, the transverse bolt arranged in the recess can be pressed slightly against the flange surfaces so that there is no play between the transverse bolt, the flange surfaces and the mounting aid.

[0009] To facilitate the simplest possible screwing process, in a further preferred embodiment of the invention, the base body for securing the transverse bolt to the profile has two recesses. These recesses leave the end regions of the transverse bolt, particularly the screw holes in the transverse bolt, exposed, allowing a self-drilling screw to be screwed unhindered into the screw holes and into the respective flange surfaces. The assembly aid can then be detached from the transverse bolt and the profile. Specifically, a recess adjoins the groove-like depression on both sides. These recesses are each slightly larger than the diameter of the heads of the self-drilling screws to be used. This ensures that the screwing in of the screws is not obstructed by the assembly aid.Secondly, the recesses allow for easy removal or peeling off of the mounting aid from the cross bolt and the profile after the cross bolt has been screwed onto the profile.

[0010] In a preferred embodiment of the invention, the guide on the base body is formed by at least two parallel webs. The distance between the outer sides of the webs can correspond to the width of the opening in the profile if the mounting aid is intended to be inserted into the opening of the profile. If the mounting aid is intended to overlap the profile, the distance between the inner sides of the webs corresponds, in particular, to the overall width of the profile. "Corresponds" means that the respective distances essentially correspond to the respective widths in order to form a guide, especially one with a clearance fit. More than two webs can also be provided. It is also possible for the mounting aid to engage in the opening and overlap the profile. For such an arrangement, four webs can be provided, with two webs engaging in the opening and the remaining two webs overlapping the profile.The outer and inner surfaces of the webs serve as sliding surfaces for the mounting aid along the profile. It is particularly preferred that the webs are oriented orthogonally to the receiving device, especially to the groove-like recess. This ensures correct alignment of the mounting aid with respect to the profile and thus the transverse bolt as soon as the mounting aid is connected to the profile via the webs.

[0011] In a further preferred embodiment of the invention, the mounting aid features an anti-rotation device such that the mounting aid is secured against rotation on the profile about an axis that is perpendicular to the base of the profile and is displaceable in the longitudinal direction of the profile. This anti-rotation device ensures that the fastening element to be attached, in particular the transverse bolt, is and remains aligned with the profile at all times. Specifically, the anti-rotation device is achieved by two or more parallel webs on the base body. Thus, the mounting aid can only slide along the profile on the webs, but cannot be rotated in this respect. Therefore, the anti-rotation device only allows translational movement of the mounting aid in the longitudinal direction of the profile, but not rotational movement.

[0012] To further improve the holding power of the mounting aid on the profile, in addition to its preferred self-retaining capability, a preferred embodiment features both the mounting aid and the profile each having a clamping surface. This surface extends, in particular, parallel to the base of the profile and serves for attaching a clamping device, such as a clamping jaw, locking pliers, or similar device. This clamping device allows the mounting aid to be securely clamped to the profile. Thus, a secure hold of the mounting aid on the profile is ensured during the fastening of the transverse bolt to the profile, and unintentional slippage is prevented. To remove the mounting aid from the profile, the clamping device must be detached from the clamping surfaces.

[0013] To ensure particularly easy removal of the mounting aid from the profile after the transverse bolt has been fixed to the profile, in a further preferred embodiment of the invention the receiving device in the mounting aid is designed and oriented with respect to the profile such that, after the transverse bolt has been fixed to the profile, the mounting aid can be removed by simply moving it away from the profile in the direction of a normal to the base surface of the profile. In particular, the receiving device is open in the direction of the profile opening when the mounting aid is connected to the profile as intended. Thus, the mounting aid can be easily pulled off the profile and the transverse bolt without getting caught on the transverse bolt and / or the profile itself.

[0014] Furthermore, the invention proposes an assembly method using the described system to mount an elongated fastening element, in particular a transverse bolt, to a substantially U-shaped profile using the assembly aid. The method according to the invention comprises the following process steps, which do not necessarily have to be carried out in the order written.

[0015] First, a U-shaped profile, as described initially, is provided. This profile can already be attached to a wall to be fastened or to another part of the substructure. Next, one or more elongated fastening elements, in particular transverse bolts as described above, are provided. These bolts have a length that corresponds to the width of the U-shaped profile. Specifically, the transverse bolts are as long as the profile is wide. Finally, an assembly aid according to the invention, as described, is provided.

[0016] First, the transverse bolt to be fastened is inserted into the receiving device of the mounting aid, in particular by being placed, inserted, or clipped in, thereby securing the transverse bolt to the mounting aid at least partially by positive locking and / or frictional locking. The mounting aid, with the transverse bolt attached to it or contained within it, is then placed onto or inserted into the profile using the guide. The transverse bolt can then be moved along the profile by sliding the mounting aid until it reaches the desired mounting position relative to the profile. This allows the desired position of the transverse bolt to be set on the profile. It is also possible to first place the mounting aid onto the profile and then insert the transverse bolt into the receiving device.

[0017] Subsequently, by screwing at least one screw, in particular a self-drilling screw as described above, through an end region of the transverse bolt and into at least one flange surface of the profile, the transverse bolt is permanently fixed to the profile. The transverse bolts have screw holes in their respective end regions through which the self-drilling screws can be inserted, thus enabling the self-drilling screws to be screwed only into the profile itself for final fixing. For this purpose, the orientation of the screw holes must be aligned orthogonally to the base surface of the profile.

[0018] Finally, the mounting aid can be removed from the cross bolt and the profile. This is done by pulling the mounting aid off the profile in a direction away from the opening of the profile.

[0019] Preferably, in the inventive method, a self-drilling screw is screwed into the respective flange surface of the profile at each end of the transverse bolt. The use of two self-drilling screws per transverse bolt ensures a stable fastening of each transverse bolt to the profile.

[0020] To prevent the mounting aid, and thus the cross bolt itself, from slipping before the set position is fixed, a preferred pre-assembly step involves clamping the mounting aid to the profile using a clamping device, particularly a locking clamp, after the desired position of the mounting aid has been set. After the fastening element has been fixed to the profile, the clamping device is released. Specifically, the clamping device is applied to the respective clamping surfaces for this purpose.

[0021] The features and combinations of features, embodiments, and configurations of the invention mentioned above in the description, as well as the features and combinations of features mentioned below in the figure description and / or drawn in a figure, are not only usable in the combinations specified or drawn, but also in any other combination or individually. Embodiments of the invention are possible that do not have all the features of a dependent claim. Individual features of a claim can also be replaced by other disclosed features or combinations of features.

[0022] The invention is explained below using an exemplary embodiment.

[0023] They show: Figure 1 shows an assembly aid according to the invention in a perspective view; Figure 2 shows a system according to the invention with the assembly aid of the Figure 1in a top view; and Figure 3 the system according to the invention of Figure 2 in a perspective view.

[0024] The invention proposes a system 1 with a U-shaped profile 2 (hereinafter referred to simply as "profile"), a mounting aid 16 and an elongated fastening element 26. Figure 1 Figure 16 shows the assembly aid 16 according to the invention in a perspective view. Figures 2 and 3 The figures show system 1 in a top view and in a perspective view.

[0025] Profile 2, shown in perspective in Figure 3The profile 2 is, in particular, an extruded aluminum profile. The profile 2 is used as part of a substructure to connect, for example, natural stone slabs or solar modules to a substrate, such as a building wall (not shown). The profile 2 extends in a longitudinal direction 3 and has a first side surface 4 and a second side surface 5 opposite the first side surface 4. The first and second side surfaces 4, 5 are connected by a base surface 6, giving the profile 2 a substantially U-shaped form. An opening 8 of the profile is formed by the side surfaces 4, 5 and the base surface 6. A width 9 of the opening 8 extends orthogonally to the longitudinal direction 3 between the side surfaces 4, 5. A strut 7 is formed on the base surface 6, which is oriented away from the opening 8. The strut 7 serves to connect to another part of the substructure (not part of the invention and not shown).The strut 7 is arranged centrally with respect to the base surface 6 and extends along the longitudinal direction 3. Adjacent to the opening 8 of the profile 2, the profile 2 has two flange surfaces 10, which are oriented away from each other. The flange surfaces 10 are identical and each extends parallel to the base surface 6. The flange surfaces 10 have a top surface 11 and a bottom surface 12 facing away from the top surface 11. A total width 13 of the profile 2 extends between the respective outer edges of the flange surfaces 10, perpendicular to the longitudinal direction 3. The flange surfaces 10 have center points 14 on their top surface 11, through which grooves 15 run. The grooves 15 form depressions that serve to facilitate the cutting of a self-drilling screw 31.

[0026] System 1 further comprises an assembly aid 16. The assembly aid 16 comprises a cuboid-shaped base body 17. The base body 17 comprises a top surface 18 and a bottom surface 19 facing away from the top surface 18. The bottom surface 19 is the side that comes into contact with the top surface 11 of the flange surface 10 (see figure). Figure 3 The base body 17 further comprises a guide 20, which is formed by two parallel webs 21. The webs 21 have an identical height. The distance between the outer surfaces 22 of the webs 21 is aligned with the width 9 of the opening 8 of the profile 2 such that the base body 17, as shown in Figure 3As shown, the base body 17, or the mounting aid 16, can be inserted into the opening 8 with the webs 21 facing forward. The webs 21 thus form a clearance-fit guide 20 in the opening 8, allowing the base body 17, or the mounting aid 16, to slide along the opening 8 in the longitudinal direction 3. The guide 20 can also be designed to provide a slight clamping force, which keeps the mounting aid 16 in position against gravity. Furthermore, the guide 20 simultaneously acts as an anti-rotation device. Rotational movement is prevented. The mounting aid 16 can only slide translationally along the opening 8.

[0027] To receive an elongated fastening element 26, which in this embodiment is designed as a transverse bolt 27 and is to be attached to the profile 2, the base body 17 has a receiving device 23. This receiving device is arranged on the underside 19 of the base body 17 and extends centrally and perpendicularly through the webs 21. The receiving device 23 is designed as a groove-like recess 24, which is open downwards in the direction of the profile 2. The recess 24 serves to receive the transverse bolt 27 in a form-fitting and optionally slightly clamping manner. Adjacent to the groove-like recess 24 on each side, the base body 17 has a notch 25. The function of the recesses 25 on both sides will be explained below.

[0028] As described, the mounting aid 16 serves to mount a cross bolt 27, as shown in the Figures 2 and 3, on profile 2. The transverse bolt 27 has a substantially cylindrical shape. One length of the transverse bolt 27 corresponds to the total width 13 of the profile 2. Planar contact surfaces 28 are formed in the two end regions 29 of the transverse bolt 27. One width of the respective contact surfaces 28 corresponds to one width of the flange surfaces 10 perpendicular to the longitudinal direction 3. The planar contact surfaces 28 serve to ensure that the transverse bolt 27 rests without tilting on the upper surface 11 of the respective flange surface 10. In addition, the two contact surfaces 28 promote an orthogonal alignment of the transverse bolt 27 with respect to the profile 2, since the transverse bolt 27 can self-center in the opening 8. InEach end region 29 of the transverse bolt 27 has a screw opening 30. When the transverse bolt 27 is in contact with the respective upper surface 11 of the respective flange surface 10, the screw openings 30 are oriented upwards and thus orthogonal to the base surface 6. The position of the screw openings 30 corresponds to the grooves 15 in the flange surfaces 10, as shown in Figure 2 Furthermore, the screw openings 30 serve as a centering aid for the self-drilling screws 31. These can be inserted into the respective screw opening 30 and thus pre-positioned. Figure 2 It is also evident that the recesses 25 in the base body 17 provide access to the end regions 29 of the transverse bolt 27. Thus, it is possible to use self-drilling screws 31, as shown in Figure 3, through the base body 17 into the respective screw opening 30. The self-drilling screws 31 thereby come into contact with the respective upper surfaces 11 of the flange surfaces 10 and the grooves 15. The self-drilling screws 31 cut a passage into the respective flange surface 10 and, by further turning, the transverse bolt 27 is clamped against the flange surfaces 10 by the self-drilling screws 31, thereby fixing the transverse bolt 27 in a permanently fixed position. Figure 3 The two self-drilling screws 31 are not screwed in and are only symbolically indicated.

[0029] The recesses 25 in the base body 17 are designed such that the self-drilling screws 31 can be screwed in without obstruction and without contacting the base body 17. Due to the open design of the groove-like recess 24 in the base body 17 in the direction of the profile 2, in conjunction with the lateral recesses 25, it is possible to pull the mounting aid 16 upwards after the transverse bolt 27 has been fixed, thus removing it from the transverse bolt 27 and the profile 2. "Upwards" means in a direction away from the opening 8 and perpendicular to the base surface 6.

[0030] In a method according to the invention for fixing one or more transverse bolts 27 to the profile 2, a mounting aid 16, a profile 2, one or more transverse bolts 27, and one or more self-drilling screws 31 are first provided. The transverse bolt 27 is then inserted into the groove-like recess 24 and preferably slightly clamped, whereby the transverse bolt 27 is held in the mounting aid 16 by itself. The screw openings 30 are oriented upwards, as shown in Figure 2As shown, the desired position of the transverse bolt 27 relative to the profile 2 is set by sliding the mounting aid 16 along the profile 2 in the longitudinal direction 3. The position can then be fixed either manually by holding the mounting aid 16 or by using a clamping device (not shown). The clamping device can engage clamping surfaces 32 on the base body 17 and on the profile 2. The undersides 12 of the flange surfaces 10 serve as clamping surfaces 32 on the profile 2, and the top surface 18 of the base body 17 serves as clamping surface 32 on the base body 17. The use of a clamping device can facilitate assembly.Once the cross bolt 27 to be mounted is positioned in the desired location, self-drilling screws 31 can be inserted into the screw openings 30 of the cross bolt 27 and drilled into the respective flange surfaces 10 by turning them with a rotary tool, for example a cordless screwdriver, whereby the self-drilling screws 31, with further turning, clamp the cross bolt 27 against the flange surfaces 10.

[0031] Finally, if used, the clamping device can be removed and the mounting aid 16 pulled upwards off the profile 2. Subsequently, further cross bolts 27 can be attached to the same profile 2 or to a different profile 2. Reference symbol list System with a mounting aid for a facade substructure

[0032] 1 System 2 U-shaped profile 3 Longitudinal direction 4 First side face of the profile 2 5 Second side face of the profile 2 6 Base face of the profile 2 7 Strut 8 Opening of the profile 2 9 Width of the opening 8 10 Flange surface 11 Top of the flange surface 10 12 Bottom of the flange surface 10 13 Total width of the profile 2 14 Center point 15 Groove 16 Mounting aid 17 Base body 18 Top of the base body 17 19 Bottom of the base body 17 20 Guide 21 Web 22 Outer side of the web 21 23 Receiving device 24 Groove-like recess 25 Recess 26 Elongated fastening element 27 Cross bolt 28 Contact surface of the cross bolt 27 29 End area of ​​the cross bolt 27 30 Screw opening 31 Self-drilling screw 32 Clamping surface

Claims

1. System (1) comprising a substantially U-shaped profile (2), an elongated fastening element (26), in particular a transverse bolt (27), and an assembly aid (16) for fastening the elongated fastening element (26) to the profile (2), wherein the profile (2) extends in a longitudinal direction (3), has a first side surface (4), a second side surface (5) opposite the first side surface (4), and a base surface (6) connecting the first and the second side surfaces (4, 5), wherein an opening (8) of the profile (2) is formed between the first and the second side surfaces (4, 5), wherein a flange surface (10) adjoins each of the first and the second side surfaces (4, 5) at the opening (8), each flange surface being oriented away from the opening (8), wherein the side surfaces (4, 5) are oriented in particular orthogonally to the flange surfaces (10), and wherein the assembly aid (16) has a base body (17).wherein a guide (20) is formed on the base body (17) with which the assembly aid (16) is displaceable in the longitudinal direction (3) of the profile (2), in particular in a fitting manner, along the profile (2), wherein the base body (17) has a receiving device (23) for the fastening element (26), such that the fastening element (26) can be arranged in the receiving device (23) and aligned orthogonally with respect to the longitudinal direction (3) and orthogonally with respect to the longitudinal direction (3) of the side surfaces (4) on the profile (2).

2. System (1) according to claim 1, characterized by the fact that The elongated fastening element (26) has a screw opening (30) at opposite ends for receiving a screw, in particular a self-drilling screw (31), wherein a distance between the screw openings (30) is greater than a distance between the flange surfaces (10), in particular substantially equal to a distance between the center points (14) of the flange surfaces (10).

3. System (1) according to claim 2, characterized by the fact that the receiving device (23) is formed by a groove-like recess (24) in the base body (17).

4. System (1) according to one or more of claims 1 to 3, characterized by the fact that the base body (17) has two recesses (25) such that end regions (29) of the fastening element (26), in particular the screw openings (30) of the fastening element (26), are exposed in such a way that by screwing in a screw, in particular a self-drilling screw (31), into the respective end regions (29) or into the respective openings the fastening element (26) can be fixed to the flange surfaces (10) of the profile (2) and subsequently the assembly aid (16) can be separated from the fastening element (26) and the profile (2).

5. System (1) according to one or more of claims 1 to 4, characterized by the fact thatthe guide (20) is formed by at least two parallel webs (21) on the base body (17), wherein a distance of the outer sides (22) of the webs (21) corresponds to a width (9) of the opening (8) of the profile (2) or wherein a distance of the inner sides of the webs (21) corresponds to a total width (13) of the profile (2).

6. System (1) according to claim 5, characterized by the fact that the ribs (21) are oriented orthogonally to the receiving device (23), in particular orthogonally to the groove-like recess (24).

7. System (1) according to one or more of the preceding claims, characterized by the fact that the mounting aid (16) has a rotation protection such that the mounting aid (16) is secured against rotation on the profile (2) about an axis that is perpendicular to the base surface (6) and is displaceable in the longitudinal direction (3) of the profile (2).

8. System (1) according to one or more of the preceding claims, characterized by the fact thatThe mounting aid (16) and the profile (2) each have a clamping surface (32) which extends in particular parallel to the base surface (6) for attaching a clamping device, such that the mounting aid (16) can be clamped to the profile (2) by the clamping device.

9. System (1) according to one or more of the preceding claims, characterized by the fact that the receiving device (23) in the mounting aid (16) is designed and oriented with respect to the profile (2) such that, after the fastening element (26) has been fixed to the profile (2), the mounting aid (16) can be removed from the profile (2) by simply moving the mounting aid (16) away from the profile (2) in the direction of a normal to the base surface (6).

10. Method for fixing an elongated fastening element (26) to a substantially U-shaped profile (2) by means of an assembly aid (16) using a system (1) according to one or more of the preceding claims, wherein the method comprises the following steps: - providing the U-shaped profile (2), - providing the elongated fastening elements (26), in particular one or more elongated transverse bolts (27), with a length that corresponds in particular to a total width (13) of the U-shaped profile (2), - providing the assembly aid (16),wherein the fastening element (26) is subsequently inserted into the receiving device (23) of the mounting aid (16) and the mounting aid (16) is placed on or inserted into the profile (2) with the guide (20) and a desired position of the mounting aid (16) and thus of the fastening element (26) is set on the profile (2) by sliding the mounting aid (16) along the profile (2); and wherein the fastening element (26) is permanently fixed to the profile (2) by screwing at least one screw, in particular a self-drilling screw (31), through an end region (29) of the fastening element (26) into at least one flange surface (10) of the profile (2), wherein finally the mounting aid (16) is removed from the fastening element (26) and the profile (2), in particular by pulling the mounting aid (16) off the profile (2) in a direction oriented away from the opening (8) of the profile (2).

11. Method according to claim 10, characterized by the fact that A screw, in particular a self-drilling screw (31), is screwed into each end area (29) of the fastening element (26) into the respective flange surface (10) of the profile (2).

12. Method according to claim 10 or 11, characterized by the fact that After setting the desired position of the mounting aid (16), the mounting aid (16) is clamped to the profile (2) by a clamping device, in particular by a locking pliers, and is released again after the fastening element (26) has been fixed to the profile (2).

Images