Kit for mounting solar modules

Abstract

A mounting kit (1, 2) for mounting solar modules (100) on open areas, flat roofs and roof terraces, with a substructure (5) comprising at least rail-like mounting profiles (11) on which support means are arranged, with which the solar modules (100) are given an inclined position, wherein the support means are a front mounting foot (20) and a rear mounting foot (40) of variable heights, which are adjustable and fixable relative to each other in the longitudinal axis of the mounting profiles (11) and wherein the front mounting foot (20) has a lower height than the rear mounting foot (40) and both mounting feet (20, 40) each have a receptacle (22, 142) which together form an inclined support surface on which the solar modules (100) are supported and which have means in which fastening elements (80, 81) can be inserted, which clamp the solar modules (100) and against Securing against wind suction forces, characterized by:that the mounting profile (11) is a double-chamber profile, the two hollow chamber profiles (12, 13) of which are separated and spaced apart from each other by a screw channel (15), the channel walls (19) of which have a toothing (16) extending in the longitudinal axis of the mounting profile (11) and into which uniform screws (70) for mounting the mounting feet (20, 40), of profile connectors (60) for forming a longitudinal joint of the mounting profiles (11) and of ballast profiles (50) engage.

Description

[0001] The invention relates to a kit for mounting solar modules on open areas, flat roofs and roof terraces. STATE OF THE ART

[0002] Solar modules in photovoltaic systems, usually in combination, convert sunlight into electrical energy. Both open spaces and building roofs are used for this purpose. On pitched roofs, such as gable roofs, the roof slope determines the angle of incidence of the sunlight. The orientation is also determined by the building's position.

[0003] Flat roofs require a substructure, which also determines the tilt angle of the solar panels. While the substructure allows for adjustment to the desired orientation, this reduces space utilization if the substructure is horizontally rotated relative to the available area on a rectangular roof surface.

[0004] Solar panels should be positioned on surfaces to achieve a favorable angle of incidence for sunlight. This is achieved using mounting structures, which are usually designed for a specific type of solar panel. Furthermore, it is crucial that the solar panels have an optimal tilt angle. If a static system is used instead of dynamic adjustment, an ideal angle must be selected that takes into account the building's location, its orientation, and the sun's position throughout the year. Consequently, the roof pitch created by the mounting structure will always vary from building to building. Standard static mounting structures for solar panels cannot accommodate this; instead, they must either be custom-designed or compromised in terms of the calculated optimal tilt angles.

[0005] German patent DE 10 2010 024 660 A1 describes a mounting system for a solar module. The known system uses a substructure distributed across the installation surface in a grid pattern. Mounting profiles are used for this purpose, which in turn serve as supports for the solar module supports. The rear support of the solar module is raised relative to its front mounting, thus predetermining the tilt angle. The raised support is formed by a wind guard, which is custom-made and therefore complex to manufacture.

[0006] Due to a lack of flexibility and adaptability, the known mounting systems are hardly suitable for providing the solar modules with an optimized orientation while ensuring stability. TASK STATEMENT

[0007] The present invention aims to provide a mounting kit for solar modules that enables simple and efficient installation of solar modules for a photovoltaic system, the absorption area of ​​which can be optimally aligned. This objective is achieved by a mounting kit according to the proposed claim 1.

[0008] Further advantageous details and embodiments of the invention, as well as further developments and variants, can be seen from the dependent claims and the drawing explained below. ADVANTAGES OF THE INVENTION

[0009] According to the invention, a kit for mounting solar modules on open areas, flat roofs and roof terraces is proposed, comprising at least rail-like mounting profiles on which support means are arranged, with which the solar modules are given a tilt position.

[0010] The invention is characterized in that the support means are a front mounting foot and a rear mounting foot of variable heights, which can be adjusted and fixed at varying distances to each other in the longitudinal axis of the mounting profiles, and wherein the front mounting foot has a lower height than the rear mounting foot, and both mounting feet each have a receptacle which together form an inclined support surface on which the solar modules are supported and which have means in which fastening elements can be inserted which clamp the solar modules and secure them against wind suction forces.

[0011] A kit for mounting solar modules on open areas and roof terraces is known from CN 2 18 678 911 U. This kit comprises a substructure made of rail-like mounting profiles on which support elements are arranged, allowing the tilt of the solar modules to be adjusted.

[0012] The CN 2 05 051 629 U also describes a kit, with a substructure made of rails, with similar functionality.

[0013] Fastening the parts together is very complex. T-nuts, nuts, and hammerhead bolts must be used for assembly. Especially when mounted on a roof, these components can easily be dropped due to their handling, which is why a screwless fastening system is proposed in DE 20 2010 001 854 U1.

[0014] The invention makes it possible to create a grid on the installation surface, which could be, for example, a flat roof or a terrace. This grid can be adapted to the types of various solar modules and aligned according to the location to optimize the absorption area, without requiring complex, custom-made substructures. While the front support is provided at a fixed height, the kit according to the invention includes rear mounting supports at variable heights. This allows a person skilled in the art to optimize the tilt angle of the solar modules simply by changing the rear mounting support.

[0015] It has proven particularly advantageous if the rear mounting base is modular and consists of at least two parts, comprising a lower and an upper part with means for mutual adaptation. With a two-part design, for example, the same lower part can always be used, while the mounting base is completed by different upper parts. The upper parts can vary in height and also feature individual designs for the supports. The means for connecting the two parts are designed in such a way that no complex machining is required.

[0016] The invention advantageously provides that the means for mutual adaptation of the lower part to the upper part of the rear mounting foot are T-shaped receiving grooves on one part and adaptation heads on the other part. This allows both parts to be slid laterally into one another. The adaptation heads engage behind the apex of the receiving grooves and form a positive-locking connection.

[0017] The proposed mounting profile is a double-chamber profile, the two hollow chamber profiles of which are separated and spaced apart by a screw channel. The channel walls have serrations extending along the longitudinal axis of the mounting profile. Similar to the internally serrated hollow chambers of the mounting feet, the internally serrated screw channel allows the mounting screw to be inserted without pre-drilling, as it does not need to cut into solid material.

[0018] The invention advantageously provides that the mounting feet are tubular bodies with hollow chambers that are partly closed and partly open, with at least one hollow chamber being open at the top by a slot into which a fastening element can be inserted. This fastening element engages behind the respective chamber apex or with noses or webs molded onto the chamber apex. A corresponding connector can be inserted laterally into the mounting. While the foot portion of the connector located in the hollow chamber creates a positive-locking connection, the solar modules mounted on the mounting are clamped and secured against wind suction forces.

[0019] The mounting feet themselves, like their receptacles, are designed as tubular profiles with hollow chambers and interspersed with grid-like struts and ribs. This ensures a significant weight reduction through enormous material savings while maintaining static stability.

[0020] The invention advantageously provides a fastening element for fixing the solar modules, comprising a dowel-like expanding foot and a clamping element, which are height-adjustable relative to each other by means of an adjusting screw. While the expanding foot is positioned in the hollow chamber of the respective mounting foot receptacle and establishes a positive-locking connection there, the clamping element engages the edge area of ​​a solar module to be fixed and presses it against the receptacle when the adjusting screw is tightened.

[0021] The invention provides that the spreader foot consists of an almost U-shaped bracket to which two downward-pointing, parallel hooks are molded, and an internal thread is arranged at the apex of the bracket into which the adjusting screw is screwed. The screw head rests against the clamping element and adjusts the distance of the clamping element relative to the spreader foot.

[0022] Further advantages and advantageous embodiments of the invention can be found in the following description, the drawing, and the claims. There are various ways to advantageously develop and further refine the teaching of the present invention. For this purpose, reference should be made, on the one hand, to the dependent claims and, on the other hand, to the following explanation of an exemplary embodiment of the invention with reference to the drawing. EXAMPLE OF EXECUTION

[0023] In conjunction with the explanation of the preferred embodiment of the invention with reference to the drawing, generally preferred embodiments and further developments of the teaching are also explained.

[0024] The drawing shows: Fig. 1 a perspective view of the inventive kit 1 for a south orientation, Fig. 2 a perspective view of the inventive kit 2 for an east-west orientation, Fig. 3 a further perspective view of the inventive kit 1 for a south orientation, Fig. 4 a front view of kit 1 according to Fig. 3 Fig. 5 a top view of kit 1 according to Fig. 3 Fig. 6 a side view of kit 1 according to Fig. 3 Fig. 7 another perspective view of the inventive kit 2 for an east-west orientation, Fig. 8 a front view of kit 2 after Fig. 7 Fig. 9 a top view of kit 2 after Fig. 7 Fig. 10 a side view of kit 2 after Fig. 7 Fig. 11 a perspective view of the front mounting foot 20, Fig. 12 a side view of the front mounting foot 20 after Fig. 11, Fig. 12a an enlargement of the hollow chamber 25 from Fig. 12 Fig. 13 a front view of the front mounting foot 20 after Fig. 11, Fig. 14 a top view of the front mounting foot 20 after Fig. 11, Fig. 15 that in Fig. 12 details marked "A" in an enlarged view, Fig. 16 a perspective view of the two-part rear mounting foot 40 in assembly, Fig. 17 a side view of the rear mounting foot 40 after Fig. 16, Fig. 18 a front view of the rear mounting foot 40 after Fig. 16, Fig. 19 a top view of the rear mounting foot 40 after Fig. 16, Fig. 20 a perspective view of the lower part 41 of the rear mounting foot 40, Fig. 21 a side view of the lower part 41 of the rear mounting foot 40 after Fig. 20, Fig. 22 a front view of the lower part 41 of the rear mounting foot 40 after Fig. 20, Fig. 23 a top view of the lower part 41 of the rear mounting foot 40 after Fig. 20, Fig. 24 a first perspective view of the upper part 42 of the rear mounting foot 40, Fig. 25 a second one, opposite Fig. 24 Rotated perspective view of the upper part 42 of the rear mounting foot 40, Fig. 26 a rear view of the upper part 42 of the rear mounting foot 40 after Fig. 24 Fig. 27 a side view of the upper part 42 of the rear mounting foot 40 after Fig. 24 Fig. 28 a front view of the upper part 42 of the rear mounting foot 40 after Fig. 24 Fig. 29 a top view of the upper part 42 of the rear mounting foot 40 after Fig. 24 Fig. 30 the mounting profile 11 in a front view, Fig. 31 the in Fig. 30 Detail of screw channel 15 marked with A, Fig. 32 a perspective view of a short section of the mounting profile 11, Fig. 33 a perspective view of the profile connector 60, Fig. 34 a front view of the profile connector 60 after Fig. 33, Fig. 35 a side view of the profile connector 60 after Fig. 33, Fig. 36 a top view of the profile connector 60 after Fig. 33, Fig. 37 a perspective view of the ballast profile 50, Fig. 38 a side view of the ballast profile 50, Fig. 39 a front view of the ballast profile 50, Fig. 40 the mounting screw 70 in a perspective view, Fig. 41. Rotate the mounting screw 70 horizontally by 180°. Fig. 42 a side view of the mounting screw 70, Fig. 43 a top view of the mounting screw 70, Fig. 44 that in Fig. 42 details marked "A" in an enlarged view, Fig. 45 the rear windscreen 91, Fig. 46 the side wind protection 90, Fig. 47 the fastening element 80 (module clamp) for the central area in a front view, Fig. 48 a side view of the fastening element 80 after Fig. 47, Fig. 49 a top view of the fastening element 80 after Fig. 47, Fig. 50 a perspective view of the fastening element 80 after Fig. 47, Fig. 51 the fastening element 81 (end clamp) for the termination area in a front view, Fig. 52 a side view of the fastening element 81 according to Fig. 51, Fig. 53 a top view of the fastening element 81 according to Fig. 51 and Fig. 54 a perspective view of the fastening element 81 according to Fig. 51.

[0025] In the Fig. 1, Fig. 3, Fig. 4, Fig. 5 and Fig. 6 is the inventive kit 1 for a south-facing orientation and in Fig. 2, Fig. 7, Fig. 8, Fig. 9 and Fig. Figure 10 shows a kit 2 for east-west orientation. Kits 1 and 2 comprise a substructure 5, each consisting of at least two parallel mounting profiles 11 and two mounting feet 20 and 40 arranged on each mounting profile. Kits 1 and 2 are completed by a profile connector 60 used for the longitudinal joint of two mounting profiles 11 and by a ballast profile 50 (better seen in Figure 1). Fig. 2 and Fig. 7) The ballast profiles 50, adapted to the grid created for the desired solar area, are provided in the appropriate quantity. The ballast profiles 50 are used in pairs. Weights 55 are inserted between two ballast profiles 50 aligned parallel to each other; together, these counteract the wind suction forces through their weight. Further measures include a lateral windbreak 90 or a rear windbreak 91.

[0026] To mount the solar modules 100 in an inclined orientation, the assembly kit 1, 2 mounting feet 20, 40 of different heights comprises a first front mounting foot 20 and a second rear mounting foot 40. Both mounting feet 20, 40 have a receptacle 22 ( Fig. 11), 142 ( Fig. 16) for supporting the solar modules 100, wherein these supports 22, 142 correspond to each other in such a way that they provide the solar modules 100 with an inclined support surface, the first front mounting foot 20 having a lower height than the second rear mounting foot 40. Together they provide an inclination angle of 15°.

[0027] The Fig. Figures 11 to 15 show the front mounting foot 20. A receptacle 22 is arranged on a base plate 21, in which a solar module (not shown) rests. The receptacle 22 is a tubular body, preferably manufactured by extrusion. This results in a considerable reduction in weight. Nevertheless, sufficient stability is achieved so that the sections involved in supporting the weight possess sufficient inherent rigidity. The receptacle 22 has hollow chambers 23-29, some of which are closed and some of which are open. In the chamber 25, which is open at the top by a slot 31, there is the possibility of direct cable insertion through the slot, while a closed chamber 23 serves for routing longer cable runs. The axis 32 of the receptacle 22 is inclined relative to the free surface or roof surface, so that the support surface 33 of the receptacle 22, which is perpendicular to it, gives the subsequently placed solar module an inclined orientation.The installed solar module abuts the limiting strip 34, so that it cannot be moved downwards even in windy conditions. A fastening element 80, 81 (not shown here) supports the assembly of solar modules. Fig. 47, Fig. 54) to fix the elements.

[0028] The Fig. Figure 12a shows an enlargement of the central hollow chamber 25, which is open upwards through the slot 31. A lug 38 is formed on both sides of the slot 31 or the chamber apex 37. If a fastening element 80, 81 ( Fig. 47-54) is inserted, a dowel-like expanding foot of the fastening element is located inside the hollow chamber 25 and engages under the chamber apex 37 or the lugs 38, while the clamping part of the fastening element which fixes the solar modules is positioned outside or above the hollow chamber.

[0029] The hollow chamber 29 has a substantially circular cross-section, with the inner side featuring a toothed surface 35. This is in Fig. 12 and the one in Fig. 12 detail marked with A according to Fig. 15 is evident. The toothing 35 penetrates the hollow chamber 29 in the longitudinal direction and supports the cutting of a mounting screw 70 ( Fig. 40), which therefore does not need to penetrate the solid material. The mounting foot 20 is mechanically fastened to the mounting profile 11 by means of the bores 36 in the base plate 21 ( Fig. 32) If the wind uplift protection provided by the ballast profiles and the selected weights is deemed insufficient, the mounting profiles themselves can also be additionally anchored to the roof substrate. For a flat roof, the substrate can be trapezoidal steel sheeting, wood-based material, concrete, pumice, or aerated concrete.

[0030] The following Fig. Figures 16 to 29 show the rear mounting foot 40. This foot is designed in two parts and consists of a lower part 41 and an upper part 42, which are positively connected to each other. This connection is achieved by the lower part 41 carrying T-shaped adapter heads 43 and the upper part 42 having corresponding receiving grooves 44 in which the adapter heads 43 can be moved linearly. Both parts are pushed laterally into one another, with the adapter heads 43 engaging behind the groove apex 45.

[0031] The lower part 41 of the rear mounting foot 40 is in the Fig. Figures 20 to 23 illustrate this. A triangular-shaped tubular body 47 rises from a base plate 46. As with the front mounting foot, the rear mounting foot is also manufactured as an extruded profile. To keep the weight as low as possible, the mounting foot is perforated with hollow chambers 92, 93, 94, and 95. Hollow chamber 95 has a substantially circular cross-section, with a toothed surface 96 on its inner side. The webs 98, 99 remaining after the formation of the hollow chambers, as well as the rear wall 97 and the adapter plate 101, sufficiently stiffen the tubular body so that the weight of the solar modules can be safely supported without deformation of the profile. The adapter plate 101 carries the adapter heads 43 on the surface facing away from the hollow chambers.The web 111, arranged as an extension of the web 98, and the web 112, which extends the rear wall 97, form recesses for the upper part 42 of the rear mounting foot 41 to be mounted. Approximately in the middle of the adapter plate 101, a bed 114 with a semicircular cylindrical cross-section is arranged, which is open to the outside and has internal teeth 115. Mechanical fastening to the mounting profile is achieved via the bores 116 in the base plate 46 and the mounting screws 70.

[0032] The Fig. Figures 24 to 29 depict the upper part 42 of the rear mounting foot 40. The profile, manufactured by extrusion, is also a tubular body 120 with hollow chambers 125, 126, 127, 128, 129, 130, and 131 separated from one another by webs 121, 122, 123, and 124. From a structural perspective, this resembles a lattice girder. The upper part 42 is connected to the lower part 41 of the rear mounting foot 40 by its adapter plate 140. The receiving grooves 44, into which the adapter heads 43 of the lower part 41 are inserted, serve this purpose. This is achieved by sliding both parts laterally against each other. On the side facing the adapter plate 140, the upper part 42 of the rear mounting foot 40 has a receptacle 142 with a central hollow chamber 130. This chamber is open at the top by means of a slot 132. Because the slot width is smaller than the cross-section of the hollow chamber 130, an undercut is formed. This allows a corresponding fastening element 80, 81 ( Fig. 50, Fig. 54) the chamber apex 145, or the lugs 146 formed in the chamber. The circular cylindrical hollow chamber 128, like the hollow chambers 29 and 95, has internal teeth 180. These teeth, formed on the inner walls of the circular cylindrical hollow chambers, extend along the longitudinal axis of the respective hollow chamber.

[0033] The Fig. Figures 30 to 32 show the mounting profile 11. This is a bar stock that is cut to the desired length. The mounting profile 11 is used to attach the substructure 5 ( Fig. 1) the solar mounting system. For this purpose, the mounting profiles 11 are laid on the mounting surface according to a selected grid. This can be a flat roof of a building or another suitable installation surface. The grid is oriented according to the solar modules 100 used ( Fig. 1).

[0034] The mounting profile 11 consists of two parallel rectangular hollow chamber profiles 12, 13, which are connected to each other by a base web 14. The two hollow chamber profiles 12, 13 are spaced apart from each other, forming a screw channel 15 that runs parallel to the hollow chamber profiles. A toothed section 16 is formed on both sides of the raised channel walls 19. The channels 17, 18 of the hollow chamber profiles can be used as cable ducts, e.g., for routing power cables (not shown here).

[0035] By means of the in the Fig. The profile connector 60 shown in Figures 33 to 36 joins the mounting profiles 11 arranged one behind the other at their ends, thus forming a longitudinal joint. The profile connector 60 is a U-shaped rod with a horizontal web 61 and legs 62, 63 projecting on both sides. Two holes 64, 65 are provided in the web 61. A mounting screw 70 is inserted through each of these two holes 64, 65. Fig. 40). Both mounting screws 70 cut into the teeth 16 of the screw channel 15 ( Fig. 32) the mounting profiles 11 butted together at their ends below. The distances between the parallel mounting profiles 11 are determined by the transversely laid ballast profiles 50 ( Fig. 2, 37-39).

[0036] A ballast profile 50 is in the Fig. Figures 37 to 39 illustrate the ballast profile 50, which is an L-shaped rail with preferably two legs 51, 52 oriented at right angles to each other. Two elongated holes 53 are preferably provided at the free ends of one of the legs 51. The ballast profile 50 is always used in pairs, and two profiles can be arranged parallel to each other with variable spacing. The clear distance between two ballast profiles depends on the size of the ballast body used. This could, for example, be a paving slab. The leg 51 with the elongated holes 53 rests on the mounting profile 11 and is screwed to it.

[0037] The kit according to the invention uses a uniform mounting screw 70 for all fastenings in accordance with the Fig. 40-44. All components are designed so that the solar mounting system can be assembled using only this type of screw and therefore only one tool. The mounting screw 70 consists of a screw head 72, a screw shank 74, and a load-distributing washer 76. The load-distributing washer 76 is integrally formed directly beneath the screw head 72, i.e., it is a single piece with the screw. On the underside facing away from the screw head, the load-distributing washer 76 has serrations 77 that provide a locking mechanism to prevent it from rotating backwards. The screw head 72 is cylindrical and has an internal drive 73 for engaging a screwdriver bit. The screw shank 74 has an external thread 75.

[0038] Both the profile connectors and the mounting feet, as well as the ballast profiles or the respective components in the Fig. 45 and Fig. 46 windscreens are attached with this mounting screw 70.

[0039] The rear windscreen 91 is a rectangular plate with horizontal elongated holes at its four corners. The mounting screws 70 are also used to connect the rear windscreen 91, according to the... Fig. 40-44 are used. These are also used for mounting the side windscreen 90. This is an almost triangular plate that has 152 holes at its corners.

[0040] The Fig. Figures 47 to 50 show a fastening element 80 for the center clamping of solar modules. Center clamping in this sense refers to the mechanical fixing of solar modules, whereby the fastening element used is inserted between two solar modules and exerts a clamping effect on both solar modules. The end clamp ( Fig. 51-54) designates a fastening element that is used in the edge area and therefore only clamps one solar module. The fastening element 80 for center clamping comprises a dowel-like expansion foot 155 and a clamping part 167. The expansion foot 155 consists of an almost U-shaped bracket 156 on which two downward-facing, mutually parallel hooks 157 are molded. In the apex 158 of the bracket is an internal thread (not visible here) into which the screw 159 is screwed. Beforehand, the expansion foot 155 must already be inserted into the receptacle 22, 142 ( Fig. 11 or Fig. 24) is inserted. Then the threaded shaft 160 of the screw 159 drives between the two hooks 157 and forces them apart. After the hooks 157 engage behind the receptacle, the bracket is seated, and with further tightening of the screw 159, the clamping element 167 is forced downwards. In doing so, the hooks 161 engage the solar modules, and the exerted clamping force results in a secure mechanical fixation. The U-shaped hook support 162 of the clamping element 167 also serves as a spacer between two solar modules.

[0041] The Fig. Figures 51 to 54 show the fastening element 81 for the end mounting of solar modules in the edge area. With the exception of the clamping part 177, which differs from the clamping part 167 of the fastening element 80, all other components of this fastening element are identical to those of the fastening element 81. The functions of both fastening elements 80 and 81 are also identical, with the exception of edge and / or center mounting, so that the Fig. No further explanations follow on pages 51 to 54. REFERENCE MARK LIST 1 kit for south-facing orientation 2 kits for east / west assembly 5 Substructure 11 Mounting profile 12 hollow chamber profile of 11 13 Hollow chamber profile of 11 14 Ground floor of 11 15 screw channel of 11 16 teeth in 15 Channel 17 of 12 Channel 18 of 13 19 Canal wall 20 Mounting foot (front) 21 footplate of 20 22 recordings out of 20 23 hollow chamber of 22 24 hollow chamber of 22 25 hollow chamber of 22 26 hollow chamber of 22 27 hollow chamber of 22 28 hollow chamber of 22 29 hollow chamber of 22 31 slots out of 25 32 axis of 22 33 contact area of ​​22 34 Boundary bar of 22 35 teeth in 29 36 boreholes in 21 37 chamber vertices of 25 38 Nose on 37 40 Mounting foot (rear) 41 Lower part of 40 42 Top of 40 43 Adaptation head 44 admissions 45 gutter crowns 46 Footplate of 41 47 pipe bodies out of 40 50 Ballast profile 51 thighs out of 50 52 thighs out of 50 53 slotted hole in 51 55 weights 60 profile connectors 61 of 60 62 thighs out of 60 63 thighs out of 60 64 holes in 61 65 holes in 61 70 Mounting screw 72 screw head 73 Internal drive 74 screw shaft 75 external thread to 74 76 Load distribution disc 77 gearing on 76 80 Fastening element for center clamping 81 Fastening element for end clamping 90 Wind protection (side) 91 Windscreen (rear) 92 hollow chamber of 47 93 hollow chamber of 47 94 hollow chamber of 47 95 hollow chamber of 47 96 toothing in 95 97 back panel of 47 98 rib of 47 99 rib of 47 100 solar modules 101 Adaptation plate of 47 111 Bridge on 98 112 Bridge on 97 114 beds in 101 115 Internal toothing in 114 116 boreholes in 46 120 pipe bodies of 42 121 bridge out of 120 122 bridges of 120 123 Bridge of 120 124 bridge of 120 125 hollow chamber of 120 126 hollow chamber of 120 127 hollow chamber of 120 128 hollow chamber of 120 129 hollow chamber of 120 130 hollow chamber of 120 131 Hollow chamber of 120 132 slots in 130 140 adaptation plate of 120 142 Recording of 40 / 42 145 chamber apex of 130 146 Nose at 145 150 elongated holes in 91 152 bore in 90 155 Splayfoot of 80, 81 156 hangers out of 155 157 hooks out of 155 158 ironed partings out of 156 159 screw 160 threaded shank of 159 161 hooks out of 167 162 hook carriers out of 167 167 clamping part of 80 177 clamping part of 81 180 teeth in 128

Claims

[1] Kit (1, 2) for mounting solar modules (100) on open areas, flat roofs and roof terraces, with a substructure (5) comprising at least rail-like mounting profiles (11) on which support means are arranged, with which the solar modules (100) are given an inclined position, wherein the support means are a front mounting foot (20) and a rear mounting foot (40) of variable heights, which are adjustable and fixable relative to each other in the longitudinal axis of the mounting profiles (11) and wherein the front mounting foot (20) has a lower height than the rear mounting foot (40) and both mounting feet (20, 40) each have a receptacle (22, 142) which together form an inclined support surface on which the solar modules (100) are supported and which have means in which fastening elements (80, 81) can be inserted, which fasten the solar modules (100) clamp and secure against wind suction forces, characterized by, that the mounting profile (11) is a double-chamber profile, the two hollow chamber profiles (12, 13) of which are separated and spaced apart by a screw channel (15), the channel walls (19) of which have a toothing (16) extending in the longitudinal axis of the mounting profile (11) and into the toothing (16) of the screw channel (15) uniform screws (70) for mounting the mounting feet (20, 40), of profile connectors (60) for forming a longitudinal joint of the mounting profiles (11) and of ballast profiles (50) cut. [2] Kit (1, 2) according to claim 1, characterized by , that the rear mounting foot (40) is modularly designed in at least two parts and has at least a lower part (41) and an upper part (42) which have means for mutual adaptation. [3] Kit (1, 2) according to claim 2, characterized by, that the means for mutual adaptation of the lower part (41) with the upper part (42) of the rear mounting foot (40) are T-shaped receiving grooves (44) on one part and adaptation heads (43) on the other part. [4] Kit (1, 2) according to claim 1, characterized by , that the receptacle (22, 142) is a tubular body and has hollow chambers (23-29) which are partly closed and partly open, wherein at least one hollow chamber (25, 130) is opened upwards by a slot (31, 132) and into which a fastening element (80, 81) can be inserted which engages behind the respective chamber apex (37, 145) or noses or webs (145) formed on the chamber apex. [5] Kit (1, 2) according to claims 1 to 4, characterized by , that the mounting feet (20, 40) and their receptacles (22, 142) are designed as tubular profiles with hollow chambers (23-29, 92-95, 125-131) and are interspersed with grid-like webs and ribs (98, 99, 121-124). [6] Kit (1, 2) according to claim 5, characterized by , that the hollow chambers (29, 95, 128) have a circular cylindrical cross-section and on their inner wall a toothing (35, 96, 180) extending in the longitudinal axis of the hollow chamber. [7] Kit (1, 2) according to claim 1, characterized by , that the fastening element (80, 81) comprises a dowel-like expanding foot (155) and a clamping part (167) which can be adjusted relative to each other in height by means of an adjusting screw (159). [8] Kit (1, 2) according to claim 7, characterized by , that the spreader foot (155) consists of an almost U-shaped bracket (156) on which two downwardly directed, mutually parallel hooks (157) are formed and an internal thread is arranged in the bracket apex (158) into which the adjusting screw (159) is screwed.

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