Mounting aid and mounting method for mounting

Abstract

The present invention provides an assembly aid (1) designed for mounting balustrades in or in front of a building reveal, and a corresponding method. The assembly aid (1) has a first and a second side element (S1, S2), each of which has a longitudinal profile (2) to which two transverse profiles (3, 3') are attached at right angles to a central section of the respective longitudinal profile (2), with one end spaced apart from the other and parallel to the other. The longitudinal profiles (2) and transverse profiles (3, 3') are square profiles (2, 3, 3') with longitudinal grooves (20) on all sides. The two side elements (S1, S2) can be positioned and detachably connected via their transverse profiles (3, 3') directly or indirectly by means of a connecting element. During assembly, the assembly aid (1) can be arranged vertically on the building in or in front of a building reveal.They each have two end sections (E1, E2) and at least one end section (E1) of each side element (S1, S2) is detachably and positionably connected to a template (6) by a connecting element. The templates (6) each form a railing bracket with at least one borehole (6').

Description

[0001] The invention relates to an assembly aid for balustrades and a method for assembling such balustrades using this assembly aid.

[0002] Various forms of "parapet railings" are known from the prior art; the term here essentially refers to lattice elements such as French balconies, as they are installed in or in front of window reveals, i.e., on the exterior wall in front of floor-to-ceiling windows of buildings, as fall protection, particularly on higher floors. Therefore, "parapet railing," "window grille," or "window parapet" are to be understood synonymously here, regardless of whether they are set into the reveal or are projected as a balustrade in the style of a balcony that does not generate any usable, or at least no significant, usable area.

[0003] It is common practice to mount such balustrades within the reveal using usually four brackets, or, in the case of surface-mounted balustrades, using angle brackets that are screwed to the wall to the left and right of the window reveal. The most important parameters to consider are the spacing between the drill holes, the size and length of the anchors or sleeves, the dimensions of the required screws or threaded rods, and the distance to the reveal.

[0004] The installation procedure, according to the state of the art, as described, for example, at https: / / www.elbernetall.de / ratgeber / rnontage-franzoesischer-balkon, usually follows this sequence: In the first step, an installer (this term is to be understood as gender-neutral here, as are all terms indicated with the article) manually measures the distances between the planned holes for plate-like brackets or angle elements, determines the dimensions for the fasteners such as mesh sleeves and threaded rods, and measures the distance to the reveal. Then, the dimensions for the fastening of the railing to be installed are measured, and the drill holes are marked using a spirit level and measuring tape.

[0005] Next, holes for the fasteners are drilled into the house wall; appropriate threaded rods are then cut to length. Screen sleeves are usually inserted into the drilled holes, and injection mortar is injected. The threaded rods are then inserted into the screen sleeves, and the injection mortar hardens. Finally, the balustrade, or in this case, the French balcony, is attached to the threaded rods using washers and nuts.

[0006] The installation therefore requires precise preparation and measurement of the aforementioned distances so that the French balcony can be attached perfectly in the end.

[0007] Therefore, the preparatory work for the installation is of paramount importance, namely measuring with a tape measure and marking the positions. If inaccuracies occur due to the tape measure, spirit level, or pen slipping during marking, fitting the balustrade to be installed becomes more difficult, the quality suffers, or remeasuring and marking are necessary, incurring additional costs.

[0008] Based on this prior art, the object of the present invention is to provide an auxiliary device for the installation of parapet railings in or in front of a reveal of a building, or in or in front of a reveal of a floor-to-ceiling window.

[0009] This problem is solved by an assembly aid having the features of claim 1.

[0010] The next task is to improve the procedure for mounting such parapet railings in or in front of building reveals.

[0011] This problem is solved by the method with the features of independent claim 11.

[0012] Further developments of the device and the method are described in the respective dependent claims.

[0013] According to a first embodiment of the mounting aid according to the invention, for which the mounting of balustrades in or in front of a building reveal is designed, it has a first and a second side element, each with a longitudinal profile to which two transverse profiles are attached at right angles at a central section. These transverse profiles are spaced apart from each other and parallel to each other along the length of the respective longitudinal profile. Essentially, this base element resembles a reclining pi (π). The longitudinal and transverse profiles are square profiles with longitudinal grooves on all sides. The first side element is directly or indirectly connected to the free ends of the transverse profiles of the second side element by a connecting element via its two transverse profiles or their free ends.When the mounting assembly is used during the installation of a balustrade railing in or in front of a building reveal, it is essentially held in place until it has fulfilled its purpose, but is not permanently attached. During this time, the first and second side elements are positioned vertically against the building. While the middle section of each longitudinal profile supports the two transverse profiles, the parts above and below the middle section are called end sections.

[0014] Furthermore, the assembly aid has a plurality of templates, each depicting a railing bracket with at least one bore, and such a template is detachably and positionably attached to at least the upper end section of each longitudinal profile by means of a connecting element.

[0015] This means that when arranging the mounting aid, if the balustrade is to be attached within the reveal and, for example, struts with feet rest on the bottom of the reveal or are even anchored there, it may suffice if only the upper end sections of the side elements, i.e., those on the right and left within the reveal, have templates. However, as a rule, especially for balustrades mounted in front of the reveal, two templates per side element will be provided, i.e., at the upper and lower end sections of the two longitudinal profiles.

[0016] In this context, "positionable and detachable" means that the corresponding profiles or components, which are arranged together by means of connecting elements, can be adjusted with respect to their spacing from one another and can therefore also be advantageously exchanged. For example, depending on the width of a balustrade to be installed, one side panel could have cross profiles of a different length than the other – and these could advantageously be exchanged accordingly by detaching the connecting elements.

[0017] The templates could also be advantageously exchanged – especially if the templates themselves serve as railing supports and are to remain on the building, the templates can remain on the building after the use of the mounting aid and be replaced by identical or different templates, depending on the requirements of the balustrade to be mounted, thus completing it again.

[0018] "Free ends" of the cross-sections here refers not only to a short end section, but to the part of the cross-sections that extends beyond the piece of cross-section that forms the connection with the respective longitudinal section.

[0019] "Ballast railing" in or in front of a reveal of a building refers to a railing component serving as fall protection, as is usually seen in front of floor-to-ceiling windows, often called a French balcony and usually without a step surface to the outside; the reveal (or jamb) is then formed by the inner sides of the ceiling or wall opening, which are perpendicular to the wall plane and limit the opening.

[0020] The enormous advantages of the mounting aid according to the invention lie in the fact that the installation of the balustrade is carried out with improved accuracy; measuring is generally no longer necessary, since the dimensions of the balustrade are transferred directly to the mounting aid, which contains the templates with the drill holes required for the final assembly of the balustrade. Essentially, the mounting aid can be held against the building, and the drilling can be carried out directly through the holes in the templates; then the necessary elements, whether threaded rods, dowels, mesh sleeves, or other components, can be inserted into the holes. The need to manually measure the distances between the drill holes and their final positions is advantageously eliminated with the device according to the invention.

[0021] All of the mentioned transverse and longitudinal profiles are grooved profiles and can be made of aluminum, but they could also be made of another metal, provided the required stability is ensured. The specialist will be informed about this. It is recommended that four-groove profiles be used here.

[0022] In a further embodiment of the assembly aid according to the invention, the first side element can be indirectly connected to the cross profiles of the second side element via a slide. This slide has two transverse legs which, together with two longitudinal legs, form a rectangle. Each of the two transverse legs of the slide is detachably and positionably connected to a cross profile of each of the two side elements via at least one connecting element.

[0023] In short: If the mounting aid according to the invention is to be used for a balustrade railing, and its width requires it, or for reasons of stability, then the slide can simply be inserted between the two side elements. The rectangular design with the two longitudinal legs then gives the entire mounting aid greater stability. The adjacent cross profiles can be connected with two or more connecting elements instead of at least one, also for reasons of stability.

[0024] Furthermore, according to yet another embodiment of the mounting aid according to the invention, it can gain even greater stability if the first and second side elements have support profiles at their lower end sections relative to the mounting arrangement. These support profiles are square profiles with longitudinal grooves on all sides and extend horizontally away from the two side elements. In the mounting arrangement of the device on the building, these support profiles extend into the reveal. Each support profile is detachably and positionably attached in a longitudinal groove of the respective side element via an end-mounted connecting element.

[0025] In this embodiment, the mounting aid can be placed on the lower side of the reveal, i.e., the floor, via the support profile.

[0026] According to a further embodiment of the assembly aid according to the invention, it has a height-adjustable support foot at a free end of each of the support profiles, i.e., at the end that points into the reveal in the assembly arrangement, which is designed to support the assembly aid on the lower side of the building in the reveal.

[0027] Advantageously, the height-adjustable support foot can be positioned in a longitudinal groove of the respective support profile.

[0028] In short: With this design, the mounting aid, whether with or without a slide, can be perfectly adjusted to the height of the railing brackets to be installed. The support foot can, for example, be a two-part component; a threaded stud, for instance, that can be screwed into or out of the foot section with a mating thread. The threads can also vice versa be planned.

[0029] According to a further embodiment of the assembly aid according to the invention, the connecting elements are clamping clamps and preferably quick-release clamps; the function and construction of the toggle lever mechanism are known to those skilled in the art; the multitude of embodiments are also known.

[0030] For example, if a cross profile of one side panel is to be connected to that of another, the quick-release fastener is inserted through a hole (through hole) located in the transverse axis of the cross profile. The T-nut protruding from the other end of the cross profile is then inserted into the groove of the cross profile to be joined, positioned perfectly, and the operating lever (clamping arm) is tightened with a single movement to clamp the clamping foot, essentially a T-nut, in the groove. This provides a secure yet easily detachable connection in a perfect position.

[0031] In the same way, the cross profile of a side part is connected to the cross leg of the slide, whereby it is possible to provide the clamping clamps in a bore of the cross profiles and to guide the T-nuts in the groove of the slide, or vice versa.

[0032] If, for example, the clamping clamp is provided on the support profile, the T-nut of the clamping clamp can be precisely adjusted and releasably fixed in the longitudinal groove of the longitudinal profile of the side part.

[0033] Overall, the flexibility and variability of the assembly aid according to the invention is exceptionally large, the handling is safe and very fast and also virtually tool-free.

[0034] To further stabilize the assembly aid according to the invention, a stabilizing component, preferably a stabilizing angle, can be attached between a longitudinal strut of one or both of the side elements and one or both of the respective transverse profiles connected thereto in the 90° angle spanned between them, according to a further embodiment.

[0035] In yet another embodiment of the assembly aid according to the invention, the first and / or the second side element can have a handle on their respective longitudinal profiles. This handle can be positioned facing sideways or away from the reveal in the assembly arrangement; it is conveniently located at the level of the upper cross profile or between the two cross profiles. This ensures easy handling of the

[0036] Assembly assistance was provided during the assembly process.

[0037] Finally, according to yet another embodiment of the assembly aid according to the invention, a stabilizing component, preferably stabilizing angles, can also be attached at least in one internal angle present in the slide, preferably in two or all of the internal angles.

[0038] Another embodiment of the assembly aid according to the invention provides that the sled has handles on its longitudinal legs. Advantageously, these point away from the building in the assembly arrangement.

[0039] In a further embodiment of the mounting aid according to the invention, the template can be a flat profile without an angle, which terminates at one end at a right angle in an anchor plate with one or more drill holes and which is connected at the other end to the side element via a connecting element for connection to the longitudinal profile. Advantageously, the connecting element also includes a clamping clamp, particularly preferably a quick-release clamp. This embodiment, in which the template is essentially "T-shaped" in side view, can be particularly suitable if the balustrade to be mounted is attached in the reveal and the template, with the outer surface of the anchor plate facing the reveal, remains in the reveal if the template also serves as the remaining balustrade support. In this case, drilling or other work can be carried out through the holes in the anchor plate of the template.

[0040] According to a further embodiment of the assembly aid according to the invention, the template can be an angled flat profile with two legs, which also terminates at one end at a right angle in an anchor plate with one or more drill holes and which is connected at the other end via a connecting element to the side element for connection with the longitudinal profile. Here, too, the connection of the flat profile leg connected to the anchor plate is T-shaped.

[0041] A clamping device is also suggested as a connecting element here, preferably a quick-release clamp.

[0042] This angled version of the template is very advantageous for providing templates where the anchor plate is to be mounted at a distance. This design can be particularly suitable when the balustrade to be installed is attached in front of the reveal; here, the template with the outer surface of the anchor plate faces the building wall next to the reveal. Here, too, the template can simultaneously serve as the remaining railing support and stay in place, with the holes in the anchor plate of the template being used directly for drilling and inserting threaded studs. Alternatively, it can be used only for the precise positioning of the drill holes in the wall and removed with the mounting aid once all the holes have been drilled.

[0043] In both of the aforementioned embodiments, according to a further embodiment of the assembly aid according to the invention, the connecting element can preferably be a clamping clamp, such as a quick-release clamp. This can be detachably fixed to the longitudinal profile via an angle bracket to which a plate with a groove is attached. The angle bracket is screwed to the longitudinal profile. This allows a template used on-site as a railing bracket to remain in place and be removed by simply loosening the assembly aid. A new template can then be easily inserted in its place.

[0044] The advantage of the angled versions of the template is that the length of the two legs of the angle is virtually freely selectable, and thus the spacing of a predetermined balustrade railing can be precisely adjusted.

[0045] According to a first embodiment of the assembly method according to the invention for mounting parapet railings in or in front of a reveal of a building using an assembly aid according to the invention, this comprises the following steps: a) Provide the mounting aid and b) position the mounting aid on a balustrade intended for installation, thereby taking the dimensions of the balustrade, c) positioning each of the templates. Then, in step d), position the connecting elements and, by making the detachable connections, adjust the mounting aid according to the dimensions of the balustrade. Once the mounting aid is adjusted, and thus, in particular, the holes required for the railing brackets are precisely predetermined, e) the adjusted mounting aid can be arranged accordingly in or in front of the building reveal, which includes positioning it at a designated location on the balustrade intended for installation.

[0046] The method according to the invention thus allows for the precise determination of positions for drill holes in balustrade brackets virtually without tools and, in particular, without the need for a measuring tape. This is achieved by using the mounting aid to take and record measurements directly on the component itself. The mounting aid can then be held against or in front of the reveal, representing the balustrade, and the drill holes provided by the templates can be used to determine the positions for the necessary drill holes and / or to drill them immediately. Due to its minimal number of components, the mounting aid is lightweight and can be used almost like a measuring tape. However, because it maps the exact positions of all necessary drill holes, it is highly accurate in its application according to the invention. If made of aluminum, it is very light and easy to handle.

[0047] If the template remains on the mounting aid and the alignment is carried out with a separate railing bracket of the balustrade, then in step c), positioning each of the templates, the alignment of at least one or more bores or drill holes of each of the templates on the mounting aid with a corresponding bore of the railing bracket is carried out.

[0048] In yet another embodiment of the assembly method according to the invention, where the template itself acts as a railing bracket for the balustrade, step f) is carried out: Preparations for attaching the railing brackets for the balustrade are made by means of the holes provided on the template at the intended position of the balustrade, or the holes for attaching the railing brackets are drilled directly.

[0049] Finally, according to yet another embodiment of the assembly method according to the invention, step g) can be carried out: When the templates provide the railing bracket, the connecting elements that link the templates to the side elements can be released. Steps f) then follow. g) After all connecting elements have been released, the assembly arrangement of the assembly aid is completed, and in a step h), which can take place at the desired time, the assembly aid is reassembled by attaching the next or new or other templates to at least one end section of the side element in a detachable and positionable manner using the connecting elements.

[0050] Experience has shown that, for assembly aid, a template is placed on the upper end section of the longitudinal profiles on the left and right, and a template is placed on the lower end sections on the left and right, for a total of four.

[0051] Further embodiments, as well as some of the advantages associated with these and other embodiments, will become clearer and more easily understood through the following detailed description with reference to the accompanying figures. Objects or parts thereof that are essentially the same or similar may be provided with the same reference numerals. The figures are merely a schematic representation of one embodiment of the invention.

[0052] This shows: Fig. 1 a perspective front view of the assembly aid according to the invention, Fig. 2a perspective rear view of the object from Fig. 1 , Fig. 3. A perspective side view of the object. Fig. 1 , Fig. 4 a detailed view A from Fig. 1 , Fig. 5 a detailed view B from Fig. 1 , and Fig. 6 a detailed view C from Fig. 3 .

[0053] The device according to the invention is an assembly aid used for the installation of balustrades. The balustrades, which are not shown figuratively herein, can be installed in or in front of a reveal of a building or a floor-to-ceiling window of a building.

[0054] Figuren 1 , 2 and 3Figures 1 and 2 show, from different perspectives, such an assembly aid 1, which depicts a first side element S1 and a second side element S2 (marked with dashed rectangles). When using the assembly aid 1, these side elements S1 and S2 are positioned vertically, i.e., parallel to the building wall, in front of the reveal. Each of these side elements S1 and S2 has a longitudinal profile 2 to which an upper transverse profile 3 and a lower transverse profile 3' are arranged at right angles in a central section. The upper transverse profile 3 and the lower transverse profile 3' extend to the right for side element S1, which is positioned on or in front of the building reveal on the left. Conversely, the upper transverse profile 3 and the lower transverse profile 3' extend to the left for side element S2, which is positioned on or in front of the building reveal on the right, so that the pairs of transverse profiles face each other and can be connected.The cross profiles are arranged at a distance of 3.3' from each other, which is chosen to provide basic stability to the assembly aid 1.

[0055] As in the Fig. 1 , 2 , 3 As can be seen, depending on the width of the balustrade to be installed, a frame element designated as a slide 4 is arranged between the pairs of cross-profiles (cross-profiles 3, 3' of the two side elements S1, S2). The cross-profiles 3, 3' of the two side elements S1, S2 are thus, according to this understanding, "indirectly" connected to each other.

[0056] The sled 4 has two transverse legs 4' which, together with two longitudinal legs 5, form a rectangle. Depending on the intended parapet width, the cross profiles 3, 3' of the side elements or the transverse legs 4' of the sled can be selected to be correspondingly longer or shorter in their basic dimension. As can be seen, these transverse profiles 3, 3' and the transverse legs 4', 4' are detachably and repositionably attached to one another.

[0057] "Releasable and positionable" here means that the connecting elements, in this case quick-release fasteners 50, which connect the outer upper and lower cross profiles 3, 3' with corresponding upper and lower cross legs 4' of the slide 4, can be released without assembly tools by a simple hand movement; the connected square profiles can be moved along one another and locked together again. The quick-release fastener is designed according to a type known to those skilled in the art; a T-nut 50' forms a foot and is guided in a groove 20 of the profile to be connected.

[0058] Fig. 6 The exemplary arrangement is clearly shown: Here, to improve safety and stability, two pairs of quick-release fasteners are used to connect two square profiles. The bore 51" provided in each of the square profiles – it can be one of the cross profiles 3, 3', as shown here, but also, conversely, a transverse leg 4' of the slide – which intersects the longitudinal axis of the profile, allows the insertion of a quick-release fastener 50. This fastener protrudes from the corresponding square profile, and its T-nut 50' extends into the groove 20 of the transverse leg 4' of the slide.

[0059] According to this basic principle, all square profiles of the assembly aid 1 attached to one another can be moved and fastened together; they can be loosened, repositioned and re-secured by actuating the quick-release fastener.

[0060] The two pairs of cross-section profiles 3, 3' of the two side elements S1, S2 are not directly connected to each other here, but via the slide 4; alternatively, it would also be possible to connect the two pairs of cross-section profiles directly to each other without inserting a slide. This allows for a narrow mounting aid 1 for correspondingly narrow balustrades.

[0061] As the Fig. 1 bis 3 and 5 As shown, handles 12 are provided on the longitudinal legs 5 of the slide 4. They assist in handling the assembly aid 1, but are not strictly necessary. The same applies to the handles 11 ( Fig. 1 bis 3 and 4), which are attached to the side elements S1 and S2, specifically to the respective side groove of the longitudinal profiles 2, at the height of the respective upper transverse profile 3. These four handles 11 and 12 thus enable very convenient handling of the assembly aid, firstly when it is held against the intended balustrade to be attached to take the geometries, and secondly, to use the assembly aid 1 on the building itself to take the measurements and attach the balustrade brackets.

[0062] The in the Fig. 1 bis 3 and 4The templates 6 shown are designed as angled flat profiles 17 with two legs, one of which terminates in an anchor plate 14, formed here in one piece, and the other is connected to the longitudinal profile 2 via a connecting element. Fastening is achieved here via the angle element 71, which is screwed to the longitudinal profile 2; a quick-release fastener 60 secures the second leg of the flat profile to a plate section 72 with a groove, as is also the case in Fig. 3 This becomes clear. The angle bracket 71 is a simple perforated sheet metal piece with two holes 71' through which the angle element 71 is screwed to the longitudinal profile 2. The templates 6 are arranged here at the lower end section E1 and the upper end section E2 of each of the two longitudinal profiles.

[0063] Fig. 4 This makes it clear that by loosening the quick-release fastener 60, the clamping with the angled flat profile 17 can be released: Therefore, if the template 6 is to remain directly on the building as a railing bracket, the component can be detached by loosening the quick-release fastener 60. Since the mounting aid 1 has already precisely and thus one-to-one measured the dimensions of the balustrade to be installed during the execution of the mounting procedure, the templates 6 can, in this case, be attached to the building through the drill holes 6' with corresponding threaded studs.

[0064] An advantage of these templates 6, which provide angled flat profiles, is that one and the same mounting aid can be equipped with templates with different leg lengths of the flat profiles 17; this allows the spacing of the balustrade on the building to be adjusted accordingly. The mounting aid can be flexibly equipped with different templates 6, which, as described, can serve directly as balustrade supports, and are interchangeable.

[0065] Likewise, the same mounting aid 1 can also be equipped with sleds 4 of different widths, which, due to the interchangeability, allows for great flexibility in the use of the mounting aid 1 for different balustrades.

[0066] Furthermore, the embodiment of the assembly aid 1 shown here additionally features support profiles 7 (see detail). Fig. 4 ), which are equipped at their ends with support feet 8. These support feet are height-adjustable, which can be easily achieved by screwing threaded studs at the lower end of the support foot 8 into foot sections with corresponding mating threads, as is known in the usual manner. The height adjustments can be controlled by the number of steps. Such support feet 8 can also be screwed to the support profiles 7. These support profiles 7 are also detachably and vertically adjustable attached to the longitudinal profiles 2 of the side elements S1, S2 by means of fasteners, here quick-release fasteners 70, as shown here. The support profiles, which, when using the assembly aid 1 in an assembly arrangement, point into a reveal, further enhance stability and thus ensure precise, dimensionally accurate fastening of the balustrade railing during the assembly process on the building.

[0067] The support profiles 7 could in principle also be designed without support feet 8, so that they lie directly on the bottom of the reveal.

[0068] The assembly aid 1 shown in the illustration contains further stabilizing elements: 4 stabilizing brackets are provided in the inner angles of the slide (see Fig. 3 ), each connecting a transverse leg 4' of the slide to a longitudinal leg 5 via a screw connection. In principle, these longitudinal and transverse legs could also be screwed directly together.

[0069] The arrangement of such a stabilization angle 13 can also be clearly seen in Fig. 5. Fig. 5 The figure also shows the use of a pair of quick-release fasteners; two quick-release fasteners 50 connect the cross profile 3' to the cross leg 4' of the slide. The foot section of the support foot 8 is also visible in the figure; the nuts and bolts allow for rotation.

[0070] How Fig. 1 , 2 and3 In particular, the cross profiles and cross legs 3, 3, 4 coming into contact with each other are arranged in a so-called staggered arrangement, i.e., such that when attached to each other, the cross profile 3 of one side element S1 lies under the cross leg 4 of the slide and this under the cross profile 3' of the second side element S2; the same applies accordingly to the respective lower cross profiles 3', 3', 4; however, it is also conceivable that the slide is arranged above the upper and lower cross profiles (3, 3').

[0071] Accordingly, holes must be provided for the connecting elements or quick-release fasteners.

[0072] Not shown figuratively is that instead of an angled flat profile 17 of the template 6, an unangled flat profile can also be used; this possibility is particularly relevant for the arrangement of a parapet railing in a reveal. REFERENCE MARK LIST

[0073] 1 Assembly aid 2 Longitudinal profile 3 Transverse profile 3' Transverse profile 4 Slide 4' Cross leg 5 Longitudinal leg 6 Templates 6' Drill hole 7 Support profile 8 Support foot 11 Handles 12 Handles 13 Stabilizing bracket 14 Anchor plate 17 Angled flat profile 20 Longitudinal groove 50 Quick-release fastener 50' T-nut 51" Bore 60 Quick-release fastener 70 Quick-release fastener 71 Angle piece, angle element 71' Bore 72 Plate piece E1 End sections E2 End sections S1 Side element S2 Side element

Claims

1. Assembly aid (1), designed for mounting balustrades in or in front of a reveal of a building, wherein the assembly aid (1) has a first and a second side element (S1, S2), each of which has a longitudinal profile (2) to which two transverse profiles (3, 3') are attached at right angles to a central section, with each end spaced apart from one another and parallel to one another, wherein the longitudinal profiles (2) and the transverse profiles (3, 3') are each square profiles (2, 3, 3') with longitudinal grooves (20) on all sides, wherein the first side element (S1) is directly or indirectly positionably and detachably connected to the transverse profiles (3, 3') of the second side element (S2) via its transverse profiles (3, 3') by means of a connecting element, and wherein the first and the second side element (S1,S2) during an assembly arrangement of the assembly aid (1) in or in front of a reveal of a building, are vertically arranged on the building and each has two end sections (E1, E2), wherein the assembly aid (1) has a plurality of templates (6) each representing a railing bracket with at least one borehole (6'), and wherein at least one end section (E1) of each side element (S1, S2) can be detachably and positionably connected to a template (6) by a connecting element.

2. Assembly aid (1) according to claim 1, characterized by the fact thatthe first side element (S1) is indirectly connected via its cross-sections (3,3') to the cross-sections (3, 3') of the second side element (S2) via a slide (4) which has two transverse legs (4') and is connected to two longitudinal legs (5) forming a rectangle, wherein each transverse leg (4') of the slide (4) is detachably and positionably connected to a cross-section (3, 3') of each of the two side elements (S1,S2) via at least one connecting element.

3. Assembly aid (1) according to claim 1 or 2, characterized by the fact that the first and second side elements (S1,S2) have support profiles (7) at their lower end sections (E2) in relation to the assembly arrangement, which are square profiles (2,3,3') with longitudinal grooves (20) on all sides and extend horizontally away from side elements (S1,S2), wherein each support profile (7) is detachably and positionably fastened in a longitudinal groove (20) of the respective side element (S) via a terminal connecting element.

4. Assembly aid (1) according to claim 3, characterized by the fact that at a free end of each of the support profiles (7) a height-adjustable support foot (8), designed to support the assembly aid (1) on the building, is arranged, wherein preferably the height-adjustable support foot (8) is positioned in a longitudinal groove (20) of the respective support profile (7).

5. Assembly aid (1) according to one of claims 1 to 4, characterized by the fact that the connecting elements are clamping clamps (50, 60, 70), preferably quick clamps (50, 60, 70).

6. Assembly aid (1), according to at least one of claims 1 to 5, characterized by the fact that a stabilizing component, preferably a stabilizing angle (13), is attached between at least a first side element (S1) and a second side element (S2) and a cross-section (3,3`) connected thereto, and / or that the first and the second side element (S1,S2) have a handle (11) on their respective longitudinal profiles (2).

7. Assembly aid (1), according to at least one of claims 2 to 6, characterized by the fact that a stabilizing component, preferably a stabilizing angle (13), is attached in at least one internal angle present in the slide (4).

8. Assembly aid (1), according to at least one of claims 2 to 7, characterized by the fact that the sled (4) has handles (12) on its longitudinal legs (5).

9. Assembly aid (1), according to at least one of claims 1 to 8, characterized by the fact thatthe template (6) - is a non-angled flat profile which opens at one end at a right angle into an anchor plate (14) with one or more bores (6') and has at the other end a connecting element designed for connection with the longitudinal profile (2) of the side element (S1,S2), wherein the connecting element preferably has a clamping clamp (70) and particularly preferably a quick-release clamp (70), or - is an angled flat profile (17) with two legs which opens at one end at a right angle into an anchor plate (14) with one or more bores (6') and has at the other end a connecting element designed for connection with the longitudinal profile (2) of the side element (S1,S2), wherein the connecting element preferably has a clamping clamp (70) and particularly preferably a quick-release clamp (70).

10. Assembly aid (1) according to at least one of claims 1 to 9, characterized by the fact thatthe connecting element, preferably the clamping clamp (70), particularly preferably the quick-release clamp (70), interacts with an angle element (71) which has a groove (72) and which is detachably coupled to the longitudinal profile (2).

11. Assembly method for mounting parapet railings in or in front of a reveal of a building, using an assembly aid (1) according to at least one of claims 1 to 10, comprehensive the stepsa) Providing the assembly aid (1) and b) positioning the assembly aid (1) on a balustrade intended for installation, thereby taking the dimensions of the balustrade, c) positioning each of the templates (6) d) by positioning the connecting elements and making the detachable connections, thereby adjusting the assembly aid (1) according to the dimensions of the balustrade, e) arranging the adjusted assembly aid (1) accordingly in or in front of the reveal of the building and positioning it at a designated position of the balustrade intended for installation.

12. Assembly method according to claim 11, wherein in step c), positioning each of the templates (6) involves aligning the at least one bore (6`) of the templates (6) with a corresponding bore (6`) of the railing bracket.

13. Assembly method according to claim 11 or 12, comprising step f) making preparations and / or making holes for the railing brackets for the parapet railing by means of the holes provided on templates (6) at the intended position of the parapet railing.

14. Assembly method according to at least one of claims 11 to 13, comprising step g) when the templates (6) provide the railing support, releasing the connecting elements (70) that connect the template (6) to the side elements (S1,S2), and g) after releasing all connecting elements, completing the assembly arrangement of the assembly aid (1), and h) completing the assembly aid (1) by detachably and positionably arranging further templates (6) by means of a connecting element at each of the at least one end section (E1) of the side element (S1,S2).

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