DE102018203080B4 - FOUNDATION SYSTEM FOR THE STORAGE OF SOLAR PANELS ARRANGED ALONGSIDE - Google Patents

Abstract

Foundation system for the storage of solar panels arranged flat next to each other, which are arranged on a supporting grid having crossing supporting elements in the form of profiles (1) and C+ profiles (2), which is supported by an elevation (3) anchored in the ground and has the following features and dimensions: a) the profile (1) has an elongated hole (4) which enables it to be positioned in the longitudinal direction relative to the C+ profile (2) and into which a tensioning element designed as a sliding block (5) is inserted by means of a nut and bolt connection (6) is pre-assembled, by means of which the profile (1) and the C+ profile (2) are clamped together in the tensioned state; b) the C+ profile (2) is designed as an open slot profile and has a slot (11) between horizontal Sections (15) extending at right angles into the interior of the C+ profile (2) bevels (12), which slot (11) is narrower than the sliding block (5) and approximately a finger thick det; c) the sliding block (5) has a base (13) and clamping legs (14) extending perpendicular thereto, the width of the base (13) being defined by the distance between the clamping legs (14) between their facing inner surfaces ;i) the height of the clamping legs (14) is at least slightly greater than the height of the bevels (12) pointing into the interior of the C+ profile (2);ii) the sliding block (5) overlaps with its clamping legs (14) into the C+ Profile (2) when inserted and clamps its folds (12) with the clamping legs (14) on the horizontal sections (15) of the C+ profile (2); iii) the sliding block (5) has an anti-twist device (16). , which prevents twisting of a head (8) of a bolt (7) of the nut-bolt connection (6) when tightening a nut (9); andd) the length of the bolt (7) of the nut-bolt connection (6) is matched to the height of the fold (12) and the height of the clamping legs (14) and folds (12) are also matched to one another in such a way that with the C+ profile (2) laid sideways onto the profile (1), one of the clamping legs (14) of the sliding block (5) is hung over one of the folds (12) and with the subsequent installation of the C+ profile (2) on the profile ( 1) the C+ profile (2) is pivoted into its installation position via the sliding block (5) without deformation and the sliding block (5) is positioned using the other of the clamping legs (14) over the other of the folds (12) for bracing.

Description

The invention relates to a foundation system for supporting solar panels arranged flat next to one another.

Numerous different types of foundation systems for supporting solar panels arranged flat next to one another have become known. The many different systems have been developed, among other things, in order to improve the effectiveness of such foundation systems not only with regard to their manufacture, but above all with regard to their assembly, so that costs can be saved overall.

Larger areas are often used for mounting solar panels, so that a relatively large number of panels and thus of mounting elements is required to achieve greater performance. Even supposedly smaller or minor improvements are already having an impact in terms of costs.

As a rule, there is an optimization with regard to the material and production costs of the elevations as well as the assembly costs. In order to reduce manufacturing costs, efforts are often made to reduce the material cross-sections, i.e. to optimize them in such a way that as little material as possible is combined with the highest possible stability of the individual systems or elements of the elevation to be connected. For elevation, the solar panels are arranged on a support grid, which consists of intersecting support elements, often in the form of profiles and C+ profiles. These supporting elements are usually crossbeams and longitudinal beams, which are connected to one another in such a way that the grid size of the supporting grid corresponds to the dimensions of the solar panels to be attached to it.

In DE 20 2012 005 413 U1 an adjustable foundation system for solar panels is described, which has such a support grid, which spans a surface from intersecting support elements, on which the actual solar panels are fastened. The crossing support elements must be connected to each other. This support grid is fixed or stretched on stands, which are anchored in the ground by means of screw foundations. In the following, profiles are to be understood as such a type of support element which, because of the highest possible resistance moment, is designed as a hollow profile, so that relatively small wall thicknesses can be used for the profiles. The so-called C+ profiles are often attached to these profiles. In the following, C+ profiles should also be understood to mean box profiles, which are slotted on the side with which this C+ profile is attached to the profile, so that in the broadest sense the two side legs and the upper connecting surface opposite the slot in abstract form a " C”.

In the prior art document mentioned above a fastening system for side members is disclosed in the form of a trapezoidal profile, which in the broadest sense can also be regarded as a C+ profile, and is fastened to a profile which is a supporting element in the form of a cross member. The trapezoidal profile representing the C+ profile has in its slot area from the free side faces inwardly angled legs pointing towards the slot of the C+ profile, which again have a bevel into the profile limiting the slot width. There are two bores in the cross member, into which screws are inserted, which have a spring between the screw head and the outside of the cross member. The hole is just big enough for the shank of the screw bolt to go through, but the spring can be supported on the outside of the cross member profile. A clamping element is provided between the heads of these bolts and the springs, which has a surface for supporting the head of the bolt and, next to the head, on the outside, so to speak, spanning both bolts, with a sloping downward bend. The springs are used, among other things, to push the screws already inserted into the crossbeam and secured from the inside with a nut from falling out so far from the outer surface of the crossbeam profile upwards that the fold of the trapezoidal slotted profile on one side under one of the oblique outwardly facing edge regions of the clamping element can be used. Since two screws are provided, the slot of the profile must be relatively wide, which is a disadvantage for the stability and resistance of the trapezoidal profile. In order to compensate at least to some extent for this disadvantage, the slot in the profile is made smaller than the transverse dimension of the clamping element sitting under the screw heads. If the trapezoidal clamping element on one side with its inward-pointing folds engages behind the sloping downward-pointing fold, the fold on the opposite side must then be hung under the sloping outward-pointing fold part or this fold section of the clamping element. Therefore, when hanging, the side leg of the trapezoidal element pointing obliquely downward in the sense of a trapezoid must be pressed over the downward pointing bevel of the clamping element, ie the side leg must be deformed. For reasons of strength, the profile must have a certain minimum wall thickness. The greater this minimum wall thickness, the more difficult it is to deform in order to also hang the profile on this second side under the bevel of the clamping element pointing downwards. If the wall thickness of the trapezoidal slotted support element is too thin, then this deformation can be easily accomplished, but then there is the possibility that when the two screws are tightened, i.e. with the clamping element slowly moving towards the outside of the cross member profile, the trapezoidal profile can slip out of the suspension again before clamping on this outside with its inward-pointing leg and the fold.

However, the large number of problems associated with this cannot be solved with a simple material optimization. Another disadvantage of this known system of attachment of a slotted profile to a crossbeam by means of two screws and a clamping element is the lack of adjustability. It is therefore necessary to introduce the holes for the screws or bolts very precisely in the side walls of the cross member. If this is not done precisely enough, then when the trapezoidal slotted profile is mounted on the crossbeam, there may be stresses in these beams which are transferred to the solar panels which are fixed on these slotted profiles. However, stresses transmitted to the solar panels can lead to the rupture of these solar panels and ultimately to the failure of entire systems of a photovoltaic system of this type. A disadvantage of this known system is also the provision of the springs as a further additional element, which during assembly, since they are arranged below the head of the bolt and therefore may not always be visible during assembly, before threading in the screw and securing from the inside of the cross member profile fall off the bolt again, so that the installation of these fastening elements requires a great deal of skill from the fitters carrying out the installation.

Compared to this known foundation system for the storage or elevation of solar panels arranged flat next to one another, the object of the present invention is to provide a comparatively more cost-effective elevation which can be optimized with regard to the material thickness, i.e. can be minimized and which ensures installation in a simple and reliable manner which, with a reduced number of assembly elements, almost completely avoids multiple attachment or insertion of the actual fastening elements and which also enables the crossing support elements to be aligned with one another and which also prevents the need for additional tools during assembly in addition to a normal wrench for tightening the nut Bolt connection are needed.

This object is achieved with a foundation system having the features according to claim 1. Expedient developments are defined in the dependent claims.

The foundation system according to the invention, which is provided for the storage of solar panels arranged flat next to one another, has a supporting grid which has crossing supporting elements in the form of profiles and C+ profiles. This support grid is supported by an elevation anchored in the ground, which preferably has stands and screw foundations anchored directly in the ground. The foundation system according to the invention has the following features and is dimensioned with regard to an optimal and stable elevation according to the following features.

The profile has an elongated hole, which enables it to be positioned in the longitudinal direction relative to the C+ profile and in which a tensioning element designed as a sliding block can be pre-assembled by means of a nut-bolt connection. In its clamped state, the clamping element in connection with the nut-bolt connection clamps the profile and the C+ profile together. The C+ profile is designed as an open slot profile and has a slot extending in its longitudinal direction, which is arranged between folds extending from horizontal sections at right angles into the interior of the C+ profile, with the slot being narrower than the sliding block and about a finger thick in width is. Finger thick is to be understood here as meaning the finger thickness of a normally grown and adult human being. In any case, it should not be understood as meaning that particularly delicate fingers, for example of a child or a very slender woman, on the one hand, or particularly thick fingers of an extremely tall, strong and fat person. The thickness of a finger is the average thickness of an adult human finger. What is meant by this is that a fitter of normal stature and normally trained hands must be able to insert his fingers into the slot with his fingers in such a way that, as will be described below, the clamping element in the C+ profile with the sliding block accordingly can be attached.

The sliding block functioning as a clamping element has a base and is essentially vertical to extending clamping legs. The distance between the clamping legs between their inner surfaces facing one another defines the width of the base, with the clamping legs having an at least slightly greater height than the height of the folds pointing towards the interior of the C+ profile. Furthermore, the sliding block with its clamping limbs overlaps the folds of the C+ profile in the state in which the sliding block has just been inserted with its clamping limbs into the C+ profile. When clamped, the sliding block clamps the C+ profile firmly on the outside of the profile with the clamping legs on the horizontal sections of the C+ profile. The sliding block also has an anti-twist device, which is designed in such a way that a head of a bolt of the nut-bolt connection prevents the head of the bolt from rotating when a nut of this nut-bolt connection is tightened. In addition, the nut-bolt connection is matched or dimensioned with regard to its length of the bolt to the height of the fold and the height of the clamping legs and folds are also matched or dimensioned to one another in such a way that when the C+ profile is folded laterally onto the profile, with which the actual assembly of the C+ profile on the profile begins, one of the clamping legs of the sliding block can be hung over one of the folds of the C+ profile, which is then followed by setting up the C profile on the profile, which according to the invention can now be carried out without any significant deformation of the side wall of the C+ profile can be enabled in its mounting position when pivoting over the sliding block. The sliding block can then be positioned with the other of the clamping legs over the other of the folds of the C+ profile. This means that the second side of the C+ profile should be hooked under the sliding block in such a way, i.e. the width of the sliding block with regard to the width of the horizontal, the flat sections of the C+ profile bearing the inwardly directed folds should be coordinated and are dimensioned so that, so to speak, the fold can slide over the curve between the base and the clamping legs of the sliding block without the side wall of the C+ profile having to be pushed outwards from its vertical position and thus deformed. If this can be ruled out or essentially ruled out, then another prerequisite is given, namely that the wall thickness of the C+ profile can be made relatively small without having to fear that the deformation of the side wall will result in permanent deformation during assembly Deformations remain in the profile, which would limit a simple, safe and stress-free installation of the solar panels from the outset.

This foundation system according to the invention is coordinated with one another with regard to the details, dimensions and the effects of the individual parts of the elements in such a way that easy assembly is possible, that the costs of the individual profiles can be reduced by reducing the use of materials and that the stability of the supporting grid is still sufficiently high is that even in the event of additional loads, such as in winter when snow does not slide off immediately, the support grid cannot be damaged.

Preferably, the profile of the support grid is a longitudinal girder and the C+ profile is a cross girder. It is also possible that the profile is used as a cross member and the C+ profile forms the longitudinal member. This means that the support grid is designed on the one hand so that the C+ profile can be arranged as a longitudinal member on the profiles as cross members, but on the other hand it is also possible for the cross members to be arranged on the longitudinal members. In this case, the longitudinal beams are arranged in such a way that longitudinal rows of rod-shaped elevations are connected to one another with anchorages by means of screw foundations in the ground and the transverse beams are then arranged on the longitudinal beams, on which the solar panels rest and are fastened.

At its base, from which the clamping legs extend, the sliding block is preferably designed with a cam on both sides in addition to the holes for the bolts to pass through, the step surfaces of which facing each other have a spacing which corresponds to the width across flats of the hexagon or, for example, a square of a corresponds to the head of a bolt. As a result, when the nut is tightened, the bolt is not turned inside the profile on the opposite side and can be tightened without any problems.

Furthermore, the folds of the C+ profile, which point into the interior of the profile, are designed in terms of their height in such a way that the clamping legs of the sliding block overlap these folds when clamped. The length of the clamping legs is greater than the height of the folds. The clamping legs preferably have a flat surface on their front side, so that the pressure when tightening the sliding block is better pressed into the horizontal sections of the C+ profile and the corresponding forces are introduced there in such a way that damage to the material due to local excessive stresses is avoided. This means that the clamping force can be applied evenly to or in the horizontal sections of the C+ profile.

The length of the sliding block in the direction of the longitudinal extent of the C+ profile and the area of the end faces of the sliding block are preferably dimensioned such that in the clamped state the introduction of force is distributed over such a large area that the local stresses do not exceed a critical value. The critical value here means that the bending stresses resulting from a static load, for example, with the addition of local stress peaks, for example due to restraints, are not exceeded, so that plastic deformation can be avoided.

• 1a) bis d) verschiedene Ansichten eines Nutsteins mit Mutter-Bolzen-Verbindung;
• 2a) zeigt den Beginn der Montage des C+ Profils auf dem Profil;
• 2b) zeigt den ersten Schritt der Montage gemäß 1, bei welchem Montageschritt der waagerechte Abschnitt des C+ Profils mit seiner Abkantung hinter die Klemmschenkel des Nutsteins hinter dessen Klemmschenkel eingehängt ist;
• 3 zeigt den Beginn des Aufstellens des C+ Profils auf dem Profil bei unter dem Nutstein eingehängter erster Abkantung des C+ Profils;
• 4 zeigt das aufgestellte C+ Profil in seiner Befestigungsposition mit jedoch angehobenem Nutstein und noch nicht erfolgter Positionierung zum Verspannen;
• 5 zeigt das aufgestellte C+ Profil gemäß 4, jedoch mit Ausrichtung bezüglich des Nutsteins zum Verspannen auf dem Profil;
• 6 zeigt den letzten Schritt der Montage, bei welchem das C+ Profil mittels des Nutsteins auf dem Profil 1 verspannt ist;
• 7 zeigt eine perspektivische Ansicht des C+ Profils mit verspanntem Nutstein und damit Befestigung auf dem Profil;
• 8 zeigt die perspektivische Darstellung gemäß 7, jedoch von unten, zur Darstellung der Mutter, mittels welcher der Nutstein die Verspannung des C+ Profils auf dem Profil bewerkstelligt; und
• 9 zeigt eine prinzipielle Darstellung als Seitenansicht einer Aufständerung für Solarpaneele mit Schraubfundamenten zur Verankerung im Boden.

Further advantages and details of the invention will now be explained in detail with reference to the accompanying drawings. Show it:

• 1a) until i.e ) different views of a sliding block with nut-bolt connection;
• 2a) shows the start of assembly of the C+ profile on the profile;
• 2 B) shows the first step of assembly according to 1 , in which assembly step the horizontal section of the C+ profile with its fold is hung behind the clamping leg of the sliding block behind its clamping leg;
• 3 shows the beginning of the erection of the C+ profile on the profile with the first fold of the C+ profile hooked under the sliding block;
• 4 shows the installed C+ profile in its fastening position, but with the sliding block raised and not yet positioned for bracing;
• 5 shows the established C+ profile according to 4 , but with alignment relative to the sliding block for clamping on the profile;
• 6 shows the last step of the assembly, in which the C+ profile is braced on profile 1 using the sliding block;
• 7 shows a perspective view of the C+ profile with a braced sliding block and thus attachment to the profile;
• 8th shows the perspective view according to FIG 7 , but from below, to show the nut, by means of which the sliding block accomplishes the bracing of the C+ profile on the profile; and
• 9 shows a basic representation as a side view of an elevation for solar panels with screw foundations for anchoring in the ground.

1 shows a side view in the longitudinal direction of the sliding block 5 serving as a clamping element with a bolt 7 of a nut-bolt connection 6 pushed through its base 13, which bolt 7 has a head 8 which is fixed on the base 13 of the sliding block 5 during clamping and between a designed as a cam anti-rotation device 16 is held. The sliding block 5 has clamping legs 14 which extend downwards from the base 13 essentially at right angles. A washer 10 is provided on the side of the nut-bolt connection 6 opposite the head of the bolt 7, under which there is a nut 9, by means of which, when it is tightened, the sliding block 5 presses on sections of the C+ profile (not shown here) and so that C+ profile tightened on profile 1. The anti-rotation lock 16, which is designed as a cam and has stepped surfaces pointing towards the head 8 of the bolt 7, holds the head 8 of the bolt 7 against rotation when the nut 9 is tightened, so that the nut 9 can be tightened without any problems and the two profiles, i.e. the C+ profile and the profile, can be clamped together.

1b) shows a plan view of the sliding block 5, in which the head 8 of the bolt 7 is shown, as it is held with its wrench size defining surfaces of its hexagonal head between the shoulder surfaces of the anti-twist device 16 on the base 13 of the sliding block 5.

1c ) shows a side view which corresponds to the view 1a) when rotated by 90°. All parts and elements correspond to those which belong to 1a) have already been explained and are therefore not repeatedly explained again here.

And finally is 1d ) shows a perspective view of the arrangement or the interaction of the sliding block 5 with the nut-bolt connection 6 with the head of the bolt 7 held between the anti-twist device 16 on the base 13 of the sliding block 5.

the 2 until 6 show the various assembly steps to be carried out during assembly and when tensioning the C+ profile with the profile to be carried out as part of the assembly.

In 2a) shows the first step of assembling the C+ profile 2 on profile 1. To do this, the C+ profile 2 is placed on the side of the profile 1 and pushed in the direction of the nut-bolt connection 6 that has already been pre-assembled together with the sliding block 5. The nut-bolt connection 6 is pre-assembled on the profile 1 in such a way that it can be inserted into the in 7 shown slot 4 is inserted and secured on the inside of the profile 1 with the washer 10 and the nut 9 against falling out. For threading or hanging in the in 2a) On the left side of the horizontal section 15 of the C+ profile 2, this is hung with its bevel 12 behind the left clamping leg 14 of the sliding block 5. For this purpose, the length of the bevel 12 must be designed in such a way that the bevel 12 can be pushed behind the clamping legs 14 when the horizontal section abuts against the shank of the bolt 7 . The facing folds 12, ie the left fold 12 and the right fold 12, which in 2a) represent the lower and the upper bevel 12, define a slot 11. The C+ profile 2 is a longitudinally slotted box profile.

In 2 B) the second step of the assembly of the C+ profile 2 on the profile 1 is shown, in which the nut-bolt connection 6 with the sliding block 5 has been dropped down so that the fold 12 is on the left side, i.e. in 2 B) the lower side of the C+ profile 2 is hung behind the left clamping leg 14 of the sliding block 5.

When this is achieved, according to 3 the C+ profile 2 can be set up on the profile 1 and placed in the correct position with the horizontal sections 15 resting on top of the profile 1. The exact position with respect to the longitudinal direction can be set via the slot 4 to be described later. The slot 11 now has such a width that when it is set up, the fold of the C+ profile 2 can slide easily and essentially without deformation over the curvature of the base 13 of the sliding block 5 to its right clamping leg 14, without the side section of the C+ profile 2 must be deformed laterally. If the dimensioning has been carried out just as in the manner described, the material thickness of the C+ profile 2 can be minimized and optimized in the direction of smaller thickness, without reducing the reliability of the strength of the supporting grid.

In 4 shows how the C+ profile 2 is set up on profile 1. The horizontal sections 15 rest on the upper side of the profile 1. However, the C+ profile 2 is not yet arranged with regard to the overlapping of the sliding block 5 with its clamping legs 14 over the folds 12 on the horizontal sections 15 of the C+ profile 2. The pre-assembled nut-bolt connection 6 with the bolt 7 and the head 8 of the bolt, which is held by the anti-rotation device 16 and rests on the base 13 of the sliding block 5, is raised so that the C+ profile 2 is on top of the profile 1 or the nut-bolt connection 6 with the sliding block 5 in the slot 4 (not shown) can be moved in such a way that both folds 12 of the C+ profile 2 each reach behind the corresponding clamping section 14 of the sliding block 5, i.e. the clamping sections 14 of the sliding block 5 overlap the folds 12, which point from the horizontal sections 15 into the interior of the C+ profile 2. The slot 11 between the folds 12 of the C+ profile 2 is formed in such a way that it is formed essentially as thick as a finger. The thickness of a finger is to be understood as meaning the normal finger thickness of an average person.

In 5 the position is shown which immediately precedes the clamping position of the sliding block 5 by means of the nut-bolt connection 6 . That is, the C+ profile 2 and the nut-bolt connection 6 are aligned relative to each other in such a way that the in 6 tension situation shown can be produced. At the in 6 In the bracing situation shown, the clamping legs 14 of the sliding block 5 overlap, which is braced by the head 8 of the bolt 7 held in the anti-twist device 16 when the nut 9 is tightened (not shown here) over the folds 12 of the horizontal sections 15 of the C+ profile 2 in such a way that the flat front sides of the clamping legs 14 of the sliding block 5 on the inside of the horizontal sections 15 introduce the clamping force into the C+ profile 2 and thus clamp the same on the profile 1 in a defined position.

According to the clamping situation, in which the C + profile 2 in the slot 4 according to 7 can be aligned or must be aligned in such a way that no stresses are introduced into the longitudinal beams, which ultimately carry the solar panels. For this purpose, the respective position can be set in the slot 4, which means based on 7 that the C+ profile 2 acting as a longitudinal beam can be displaced in the transverse direction to its longitudinal extent, ie in the direction of the profile 1, which serves as a cross beam 17.

In 8th is the situation or position, ie the bracing position according to 7 shown, the direction of view of the perspective view being from below, which shows that the nut 9 is tightened and that the sliding block 5 with its clamping legs 14, ie with its flat undersides, presses on the horizontal sections 15 of the C+ profile 2.

And finally is in 9 a basic side view of a foundation system with the corresponding elevation 3 is shown. The elevation 3 has rod-shaped elements which have a screw foundation 18 on their underside, by means of which the elevation 3 is anchored in the ground. In the exemplary embodiment shown, the elevation 3 also includes diagonally running crossbeams 17 and additional crossbeams 17 that are provided essentially parallel to the crossbeams 17 that are shown in principle, more typically for a supporting structure wise intended struts. These struts are used for stabilization, but are of secondary importance with regard to the invention described here. The C+ profiles 2 are then fastened to the crossbeams 17 as longitudinal beams by means of the nut-bolt connection 6 including the sliding blocks 5 in the manner described above and aligned laterally in the slot 4 present in the crossbeam 17 such that the longitudinal beams are designed as longitudinal beams C + Profile 2 can be mounted on the cross member 17 essentially without tension.

Reference List

1

profile

2

C+ profile

3

insurrection

4

Long hole

5

sliding block

6

nut-bolt connection

7

bolt

8th

head of the bolt

9

mother

10

washer

11

slot

12

Folds C+ profile

13

Base sliding block

14

Clamping leg sliding block

15

Horizontal sections C+ profile

16

anti-rotation device

17

cross member

18

screw foundation

Claims (8)

Foundation system for the storage of solar panels arranged flat next to each other, which are arranged on a supporting grid having crossing supporting elements in the form of profiles (1) and C+ profiles (2), which is supported by an elevation (3) anchored in the ground and has the following features and dimensions: a) the profile (1) has an elongated hole (4) which enables it to be positioned in the longitudinal direction relative to the C+ profile (2) and in which a tensioning element designed as a sliding block (5) is pre-assembled by means of a nut-bolt connection (6). is, by means of which the profile (1) and the C + profile (2) are braced together in the tensioned state; b) the C+ profile (2) is designed as an open slot profile and has a slot (11) between horizontal sections (15) extending at right angles into the interior of the C+ profile (2) bevels (12), which slot (11) is narrower is designed as the sliding block (5) and about as thick as a finger; c) the sliding block (5) has a base (13) and clamping legs (14) extending perpendicularly thereto, the width of the base (13) being defined by the distance between the clamping legs (14) between their inner surfaces facing one another; i) the height of the clamping legs (14) is at least slightly greater than the height of the folds (12) pointing inside the C+ profile (2); ii) the sliding block (5) engages with its clamping limbs (14) when inserted into the C+ profile (2) its folds (12) and clamps in the tensioned state with the clamping limbs (14) on the horizontal sections (15) of the C+ profile (2); iii) the sliding block (5) has an anti-rotation device (16) which prevents a head (8) of a bolt (7) of the nut-bolt connection (6) from rotating when a nut (9) is tightened; and d) the length of the bolt (7) of the nut-bolt connection (6) is matched to the height of the fold (12) and the height of the clamping legs (14) and folds (12) are also matched to one another in such a way that with the C+ profile (2) laid sideways onto the profile (1), one of the clamping legs (14) of the sliding block (5) is hung over one of the folds (12) and with the subsequent installation of the C+ profile (2) on the profile ( 1) the C+ profile (2) is pivoted into its installation position via the sliding block (5) without deformation and the sliding block (5) is positioned using the other of the clamping legs (14) over the other of the folds (12) for bracing. foundation system claim 1 , in which the profile (1) is a longitudinal member and the C+ profile (2) is a cross member. foundation system claim 1 , in which the profile (1) is a cross member and the C+ profile (2) is a longitudinal member. Foundation system according to one of the claims 2 or 3 , in which the longitudinal members are mounted on the cross members. Foundation system according to one of the claims 2 or 3 , in which the cross members are mounted on the longitudinal members. Foundation system according to one of the Claims 1 until 5 , in which the anti-twist device (16) on the base (13) of the sliding block (5) has cams which have stepped surfaces facing one another, between which the head (8) of the bolt (7) is held in a torsion-proof manner. Foundation system according to one of the Claims 1 until 6 , in which the clamping limbs (14) are flattened and planar at their end faces pointing towards the horizontal sections (15) in the clamping position for the uniform introduction of clamping force. foundation system claim 7 , in which the length of the sliding block (5) in the direction of the C+ profile (2) and the area of its end faces are dimensioned in such a way that the introduction of force is distributed over such a large area that plastic deformation is avoided.

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