Mounting device for solar modules

Abstract

Holding device (1) for mounting solar modules on roofs, comprising a support (10) attachable to the roof substructure and a bracket (50) attachable to the support, which extends as a cantilever over the roof tiles (8) and receives the solar modules at a distance from the roof tiles (8), wherein the bracket (50) and the support (10) interlock like a comb and their respective positions relative to each other can be fixed, characterized in that the bracket (50) is designed in three parts and consists of an arm (51), a holder (70) and a receptacle (90), wherein the arm (51) and the holder (70) are connected to each other via a grid (63, 74) with variable distances and the receptacle (90) is detachably attached to the free end of the holder (70), while the connection between the bracket (50) and the support (10) can be unlocked and the distance of the bracket (50) relative to the support (10) is adjustable without the to release the connection by means of the bracket (50) having means,which allow vertical and orthogonal adjustment relative to the carrier (10) and parallel displacement of the comb-like connection.

Description

[0001] The invention relates to a holding device for mounting solar modules on roofs. STATE OF THE ART

[0002] EP 2 527 762 A1 describes a fastening device for mounting a solar collector to a roof substructure. The device consists of a base and a hook, which is screwed to the base and interlocks via transverse teeth. Adjusting the position of the hook and base is only possible by loosening the screw connection, pulling the hook completely out of the base, and then reinserting it in the desired new position. The hook has only one orientation and can only accommodate solar panels from below via a support rail.

[0003] DE 10 2010 054 175 A1 describes a roof hook with a base for connection to a roof substructure and a hook part connectable to the base, which has a connection at a first end for fastening a supporting structure or functional element located above the roof covering, wherein the base is an angle profile with a first angle leg and a second angle leg, wherein the second angle leg is arranged on the first angle leg essentially perpendicular to it and has leg profile surfaces on a leg front and leg rear, wherein the hook part is forked at a second end and has opposing fork inner surfaces which have fork profile surfaces complementary to the leg profile surfaces.so that the hook part can be joined to the second angle leg at at least two different distances from the first angle leg, allowing it to slide along the profile direction. Here too, adjusting the position of the roof hook in the base is only possible by sliding it. If a height adjustment is required, the roof hook must be completely pulled out of the base and reinserted in the new position.

[0004] Any manual work on the roof is not only time-consuming but also risky and should be minimized as much as possible. TASK STATEMENT

[0005] The present invention is based on the objective of creating a holding device for mounting solar modules on roofs that allows a reliable and permanent structural connection and that can be adapted to different mounting situations with just a few steps.

[0006] This problem is solved by a holding device according to the proposed claim 1.

[0007] Further advantageous details and embodiments of the invention, as well as further developments and variants, are evident from the dependent claims and the drawing explained below. In the description and the claims, designations refer to the position and orientation of the elements, such as "top" or "bottom," not to the final position after assembly, but to the actual representation in the drawing. ADVANTAGES OF THE INVENTION

[0008] According to the invention, a holding device for mounting solar modules on roofs is proposed, comprising a support that can be attached to the roof substructure and a bracket that can be attached to the support, which extends as a cantilever over the roof tiles and receives the solar modules spaced apart from the roof tiles, wherein the bracket and the support interlock in a comb-like manner and their respective positions relative to each other can be fixed.

[0009] The invention is characterized in that the bracket is designed in three parts and consists of an arm, a holder and a receptacle, wherein the arm and the holder are connected to each other via a grid with variable distances and the receptacle is detachably attached to the free end of the holder, while the connection between the bracket and the support can be unlocked and the distance of the bracket relative to the support can be adjusted without loosening the connection, by the bracket having means which allow vertical and orthogonal adjustment relative to the support and parallel displacement of the comb-like connection.

[0010] The invention makes it possible to mount the pre-assembled mounting device on the roof substructure and to make fine adjustments or corrections without removing the bracket from the support and reinserting it in a new position. With the present invention, this can be done in just a few steps, whereby the previous position is simply unlocked and the new comb-like connection is positively guided by tightening only one screw. Furthermore, the invention allows for adaptation to a wide variety of solar modules and their mounting systems, as the bracket is designed in multiple parts, thus enabling various adjustments within itself. The receptacle at the free end of the bracket can be rotated by 90° and can therefore also be used for edge mounting of the solar modules.

[0011] In a particularly preferred embodiment of the invention, the support consists of a base plate and three flanges arranged one above the other and oriented orthogonally to the base plate, with the lower and upper flanges each having a grid on their upper surfaces. The grids of the lower and upper flanges of the support are formed by grooves arranged in a row, one behind the other and parallel to the base plate, the grooves being inclined relative to the upper surfaces of the flanges.

[0012] Complementing this, the arm of the bracket is designed to be Z-shaped and have three outriggers. The outrigger at the first free end of the arm is oriented in the opposite direction to the outriggers at the other end of the arm. A web rises between the outriggers and the outriggers, forming an obtuse angle between itself and the outriggers. The two outriggers are arranged parallel to each other and orthogonal to an upper web section, which is oriented orthogonally to the outrigger. Skids are arranged in a row on the outriggers of the arm, running parallel to the web section. These skids interlock with the grooves of the flanges in a comb-like manner. The skids are inclined relative to the undersides of the outriggers, and the angles of the skids and the grooves of the flanges of the support are congruent.This example of an embodiment is operatively connected with the means for releasing the adjustment, which comprise a screw and preferably a square nut, wherein the screw is screwed into the square nut and the square nut can be moved in a slide-like manner in adjacent grooves in the flanges of the support, wherein the screw passes through an elongated hole arranged in the web, preferably in the upper web section of the arm.

[0013] The invention ensures that the comb-like connection between the support and the bracket is formed by the skids of the bracket engaging in the grid of the support, and that the slide-like connection allows both a lateral displacement and a vertical disengagement of the comb-like connection, as well as a distancing from the support, without breaking the connection.

[0014] A further advantageous embodiment of the invention provides that each grid on the flanges of the support is formed from grooves running in a row, one behind the other and parallel to the base plate. These can be manufactured with a precise fit and thus form a jam-free connection.

[0015] A further advantageous embodiment of the invention provides that the grooves are inclined relative to the upper surfaces of the flanges. This has the particular effect that, when the fixing screw is loosened during vertical movement, the arm of the bracket is simultaneously distanced from the support. This distancing can continue until the skids on the arm's extensions are positioned one groove further along. The elongated hole in the arm allows for vertical movement of the arm, and the skids can then engage in a new comb-like connection with the grid of the support.

[0016] A particularly preferred embodiment of the invention provides that each groove consists of walls and a sole, which are aligned orthogonally to the walls. Thus, the sole also assumes the inclined position, while the walls form the sliding surfaces for the skids and the sole forms a stop with the surface of the flanges.

[0017] Preferably, the middle flange of the support has a groove on its upper side that runs parallel to the base plate of the support and to a groove in the underside of the upper flange. Both grooves form the slide-like guide for a square nut, which is received therein and allows, on the one hand, a lateral displacement of the bracket and, on the other hand, for example when tightening the screw engaging the square nut, also leads to a forced lowering of the bracket.

[0018] To create an adjustable connection between the arm and the bracket holder, the invention provides that a grid is arranged on the underside of the arm extension, formed by grooves arranged parallel to the width of the bridge and parallel to one another. Complementarily, the holder also has such a grid on the upper side of its base.

[0019] Preferably, the holder is angled and has a base and a head, both connected by a bridge that forms an obtuse angle with the base, and the head is oriented orthogonally to the base. This allows for greater flexibility with respect to the existing roof covering, which is further enhanced by the inclusion of an elongated hole in the base, providing adjustment between the holder and the arm of the bracket along its length. EXAMPLE OF EXECUTION

[0020] There are various ways to advantageously develop and refine the teaching of the present invention. Reference is 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. 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.

[0021] The drawing shows: Fig. 1. A perspective view of the pre-assembled holding device, Fig. 2 a front view of the carrier, Fig. 3 a side view of the carrier Fig. 3a the in Fig. 3 details marked with "I" in an enlarged view, Fig. 3b the in Fig. 3 details marked “II” in an enlarged view, Fig. 3c that in Fig. 3 details marked “III” in an enlarged view, Fig. 4 a perspective view of the carrier, Fig. 5 The arm of the bracket in a side view, Fig. 5a the in Fig. 5 details marked “IV” in an enlarged view, Fig. 5b the in Fig. 5 details marked with "V" in an enlarged view, Fig. 6 the arm of the bracket in a front view, Fig. 7 the arm of the bracket in a top view, Fig. 8 the arm of the bracket in a perspective view, Fig. 9 of the bracket holder in a front view, Fig. 10 of the bracket holders in a side view, Fig. 11. The bracket holder in a top view, Fig. 12. The holder of the bracket in a perspective view, Fig. 13 a rear view of the recording, Fig. 14 a side view of the photograph, Fig. 15 a perspective view of the recording, Fig. 16 the holding device attached to a tiled roof in a first mounting position, Fig. 17. The holding device with the screw loosened to change the mounting position. Fig. 18 the holding device with raised arm, Fig. 19 the holding device in which the arm was moved into the desired new position and Fig. 20 the holding device in which the desired new position is fixed by tightening the screw.

[0022] The Fig. Figure 1 shows the pre-assembled holding device 1. This consists of a support 10 and a three-part bracket 50, comprising an arm 51, a holder 70, and a receptacle 90. The components are supplemented by a square nut 3 and screws 4, 5, and 6, whereby only the threaded hole is visible for screw 5; the screw itself is not shown.

[0023] The arm 51 and the holder 70 are connected to each other via the extension 54 of the arm 51 and the base 71 of the holder 70, allowing for variable distances between them. This is made possible by both components having a grid 63 and 74 on their adjacent contact surfaces, which can be adjusted by increasing or decreasing the distance "a" and fixed in their relative position by tightening the screw 5.

[0024] Carrier 10 is in the Fig. Figures 2 to 4 are shown in various views and details. The support 10 consists of a base plate 11 and three flanges 15, 25, and 35 oriented orthogonally to the base plate 11. The end faces 22, 32, and 42 of the flanges lie one above the other on a plane vertical in the drawing, so that all flanges project from the base plate 11 with the same length. The base plate 11 has two superimposed rows of holes 12, with the lower row offset from the upper row so that the holes 12 are not directly above one another.

[0025] On the upper side 23 of the lower flange 15 (see also Fig. 3a) A grid 16 is incorporated, extending over the entire flange length and formed by parallel grooves 17. The grooves 17 have a rectangular geometry with two wall sides 19, 20, a base 18, and the outlet 21, and are recessed into the flange 15 at an angle of approximately 45°, so that the base 18 is also angled. A groove is also provided on the end face 22, which, due to its edge location, forms only a notch 46. The middle flange 25 (see also Fig. 3b) has a recessed groove 27 on its upper surface 26. This groove is positioned relative to the upper surface 26 such that the walls 29, 30 of the groove 27 extend orthogonally from the upper surface 26 into the flange 25, the base 28 runs parallel to the upper surface 26 and has an opening 31 at the top. Overall, the groove 27 extends along the entire length of the flange parallel to the end wall 32 and is offset from the end wall towards the inside of the flange, so that an edge web 33 remains between the groove 27 and the end wall 32.

[0026] On the top side 45 of the upper flange 35 (see also Fig. 3c) As in the lower flange, a grid 36 is incorporated, extending over the entire flange length and formed by parallel grooves 37. The grooves 37 have a rectangular geometry with two wall sides 39, 40, a base 38, and the outlet 41, and are recessed into the flange 35 at an angle of approximately 45°, so that the base 38 is also angled. A groove is also provided on the end face 42, which, due to its edge-side position, again only forms a notch 47. A recessed groove 44 is arranged on the underside 43 of the upper flange 35. This groove is positioned relative to the underside 43 such that its walls 48, 49 extend orthogonally from the underside 43 into the flange 35, the base 34 runs parallel to the underside 43, and has an opening 24 at the bottom.The groove 44 extends along the entire length of the flange parallel to the end wall 42 and is offset from it towards the inside of the flange, so that an edge web 9 remains between the groove 44 and the end wall 42. The groove 44 in the upper flange 35 and the groove 27 in the middle flange 25 together form a slide guide.

[0027] The arm 51 of the bracket 50 is in the Fig. Figures 5 to 8 are shown in various views. The arm 51 essentially has a Z-shaped form with three extensions 52, 53, and 54. A web 55 rises from extension 54, forming an obtuse angle α between itself and extension 54. In this angled position, the web 55 continues to just below extension 53, where it is bent again and its upper web section 55a is aligned orthogonally to extensions 52 to 54. This upper web section 55a is traversed by an elongated slot 66.

[0028] The middle outrigger 53 is spaced apart from the upper outrigger 52. Both outriggers 52, 53 have parallel skids 58, 59 on their undersides 56, 57, arranged in three consecutive rows. The skids 58, 59 are inclined at an angle of approximately 45° away from the web 55 of the upper web section 55a.

[0029] The geometry of the skid rows, including their angular position, is congruent with the grids 16, 36 of the support 10 ( Fig. 1-4), so that these fit together as positive / negative, i.e. complementary, elements. The flanks 67, 68 of the runners 58, 59 and the sole 69 form sliding surfaces with the grids 16, 36 of the support 10, in which they interlock like a comb.

[0030] The boom 54 is shoe-shaped and has a shoulder 61 on its upper surface 60. The boom 54 is perforated with a threaded bore 65. On the underside 62 of the boom 54 is a grid 63 formed from grooves 64. The vertically extending end face 60a has a chamfer 60b directed inwards towards the underside. (See detail) Fig. 5a)

[0031] The Fig. Figures 9 to 12 show the angled holder 70 of the bracket 50 in various views. The holder 70 is divided into a foot section 71 and a head section 82, both of which are connected by a web 81. The foot section 71 has a grid 74 formed of grooves on its upper surface 73, extending parallel to the end face 75. At the lower end, the end face 75 transitions into the underside 72 with a radius 76. The foot section 71 is traversed by an elongated slot 77, the longitudinal extent of which is aligned with the end face or in the direction of the web 81. Near the web, the upper surface 73 transitions into a slope 78, which leads into a vertical wall 79. At the end of the wall 79 is a shoulder 80.

[0032] The bridge 81 is slightly curved away from the foot section 71 and forms an obtuse angle β with it. At the end opposite the foot section 71, the bridge 81 transitions into a head section 82, which is oriented orthogonally to the foot section 71. The head section 82 has a recessed bed 83 with a trapezoidal projection 84 on the opposite side. At its free end 85, the head section 82 is wedge-shaped, with the wall 86 running orthogonally to the foot section 71 being formed as a tapered wedge surface 89. For adaptation with the receptacle 90 (not shown here), the head section 82 is provided with a threaded bore 87 that passes through the projection 84 and leads into the bed 83.

[0033] The Fig. Figures 13 to 15 show the receptacle 90 in various views. The receptacle 90 has a T-shaped form, consisting of a vertical strut 91 and a cam 92 oriented orthogonally to it. The strut 91 has a shoulder 93 approximately in the middle, from which a rear wall 95 extends parallel to the outer wall 94 of the lower section of the strut 91. At its free end, the receptacle carries a wedge tip 96 with a front face 97 running parallel to the rear wall 95 and a chamfered wedge surface 98. The strut 91 is provided in its lower region with a bore 101, which penetrates the cam 88 formed there by the shoulder 93. The cam 92 has a grid 99 on its upper surface, formed by grooves running parallel to the web 91. The cam 92 is traversed by an elongated hole 100.

[0034] To pre-assemble the holding device 1, the holder 70 is screwed to the arm 51, whereby the receptacle 90 is first attached to the holder 70, as shown in Fig. 1 is reproduced. For this purpose, recording 90 with its cam 88 ( Fig. 14) into bed 83 ( Fig. 10) of the holder 70 is inserted so that the wedge-shaped end 85 of the holder 70 forms a common wedge surface with the wedge tip 96 of the receptacle 90.

[0035] The arm 51 is then mounted onto the holder 70, which is equipped with the receptacle 90, by placing the arm 51 with its extension 54 onto the base 71 of the holder 70. Due to the elongated hole 77 in the base 71, the distance between the web 81 of the holder 70 and the web 55 of the arm 51 can be varied. Once the desired position is set by the engagement of the two detents 63 and 74, the screw 5 is tightened and the previously set position is fixed.

[0036] Based on the Fig. Sections 16 to 20 describe the assembly steps and position settings made possible by the invention.

[0037] This shows Fig. 16 the holding device 1 attached to a tiled roof in a first mounting position.

[0038] The base plate 10 is screwed onto a roof batten 2 by means of screws 110, to which a transverse counter batten 7 is in turn attached by means of screws 115. The roof tiles 8 are inserted onto this in a known manner. Since the holding device 1 is already pre-assembled, the arm 51 engages with its skids 58, 59 of the two outriggers 52, 53 in the respective grid 16, 36 ( Fig. 4) of the flanges 15, 35. To secure this position, a square nut 3 is inserted into the grooves 44 and 27 ( Fig. 1) The arm 51 is inserted and guided in both grooves in a sled-like manner. Then, screw 4 is tightened and the arm 51 is securely screwed to the base plate 10. The arm 51 extends between the two roof tiles 8 and projects beyond them to position the holder 70 above the roof tile at a suitable distance. The receptacle 90 attached to the holder 70 allows for the mounting of a substructure for solar modules to be installed above the roof surface.

[0039] The Fig. Figure 17 still shows the same position of the assembly fixture parts as in Fig. 16. However, screw 4 was loosened and turned out in the direction of the arrow, but only to the extent that the connection to the square nut 3 is maintained.

[0040] It is now possible to disengage skids 58, 59 and grids 16, 36, as shown in Fig. Figure 18 is shown. As can be easily seen here, the arm 51 does not need to be pushed out of the grids and re-threaded from the front, but can simply be raised, for example, one level and then reinserted into the respective grid. This situation is shown in Fig. 19 is shown. After screw 4 has been tightened again, the new position is fixed, as shown in Fig. 20 is evident.

[0041] The invention enables individual adjustment and attachment of the bracket 50 to the base plate 11 of the support 10. The bracket 50 is screwed to the base plate 11 from the front by the bracket itself and is therefore not attached at an angle or from above, but directly from the front for particularly user-friendly assembly. Furthermore, the bracket height can be adjusted even when mounted, since the bracket 50 does not need to be threaded in from the side, but can be lifted and repositioned.

[0042] Another special feature of the invention is the adjustability or rotation of the receptacle 90 on the bracket 50 or its holder 70. This can be rotated by 90° and offers the possibility of installing the solar module substructure vertically or horizontally. For this purpose, the bed 83 of the head section 82 on the holder 70 has a square geometry and is therefore congruent with the cam 88 of the receptacle 90. REFERENCE MARK LIST 1 Holding device 2 roof battens 3 square nuts 4 screws 5 screws 6 screws 7 Counter battens 8 roof tiles 9 edge-side bridge of 35 10 carriers 11 Base plate of 10 12 holes in 11 15 lower flange of 10 16 grids on 15 17 grooves of 16 18 soles out of 17 19 wall of 17 20 wall of 17 21 outlet of 17 22 Front side of 15 23 Top of 15 24 openings out of 44 25 medium flange of 10 26 Top of 25 27 Nut in 25 28 sole of 27 29 wall of 27 30 wall of 27 31 opening of 27 32 Front side of 25 33 edge-side bridge of 25 34 sole of 44 35 upper flange of 10 36 grids of 35 37 grooves out of 36 38 sole of 37 39 wall of 37 40 wall of 37 41 Outlet of 37 42 Front side of 35 43 Bottom of 35 44 Nut in 43 45 Top of 35 46 notch in 22 47 notch in 42 48 wall in 44 49 wall in 44 50 hangers 51 arms out of 50 52 booms out of 51 53 outriggers out of 51 54 booms out of 51 55 Bridge of 51 55a upper bridge section 56 Bottom of 52 57 Bottom of 53 58 runners on 56 59 runners on 57 60 Top of 54 60a Front of 54 60b Bevel of 60a Paragraph 61 of 60 62 bottom of 54 63 grids on 62 64 grooves out of 63 65 threaded hole of 60 66 slot in 55a 67th flank from 58, 59 68 Flank from 58, 59 69 sole of 58, 59 70 holders out of 50 71 Foot section of 70 72 Underside of 71 73 Top side of 71 74 grids of 71 75 Front of 71 76 radius 77 Slotted hole 78 Slanted 79 vertical wall Paragraph 80 81 Bridge 82 Headboard 83 beds in 82 84 Survey to 82 85 free end of 82 86 wall of 82 87 Threaded hole in 82 88 cams out of 90 89 wedge area of ​​70 90 recording 91 strut of 90 92 Scenery of 90 paragraph 93 of 91 94 Exterior wall of 91 95 Back panel of 91 96 wedge tip of 91 97 Front page of 91 98 bore in 91 99 grids on 92 100 elongated holes in 92 101 bore in 91 102 grooves of 74 110 screws 115 screws QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] EP 2 527 762 A1

[0002] DE 10 2010 054 175 A1

[0003]

Claims

[1] Holding device (1) for mounting solar modules on roofs, comprising a support (10) that can be attached to the roof substructure and a bracket (50) that can be attached to the support, which extends as a cantilever over the roof tiles (8) and receives the solar modules spaced apart from the roof tiles (8), wherein the bracket (50) and the support (10) interlock like a comb and their respective positions relative to each other can be fixed, characterized by, that the bracket (50) is designed in three parts and consists of an arm (51), a holder (70) and a receptacle (90), wherein the arm (51) and the holder (70) are connected to each other via a grid (63, 74) with variable distances and the receptacle (90) is detachably attached to the free end of the holder (70), while the connection between the bracket (50) and the carrier (10) can be unlocked and the distance of the bracket (50) relative to the carrier (10) is adjustable without releasing the connection, by the bracket (50) having means which allow vertical and orthogonal adjustment relative to the carrier (10) and parallel displacement of the comb-like connection. [2] Holding device (1) according to claim 1, characterized by, that the support (10) consists of a base plate (11) and three flanges (15, 25, 35) arranged orthogonally to the base plate (11) and one above the other, wherein the lower flange (15) and the upper flange (35) each have a grid (16, 36) on their upper surfaces (23, 45). [3] Holding device (1) according to claim 2, characterized by , that each grid (16, 36) of the lower flange (15) and the upper flange (35) of the support (10) is formed from grooves (17, 37) running in a row behind one another and parallel to the base plate (11). [4] Holding device (1) according to claim 3, characterized by , that the grooves (17, 37) have an inclination relative to the top surfaces (23, 45) of the flanges (15, 35). [5] Holding device (1) according to claims 3 and 4, characterized by , that each groove (17, 37) consists of walls (19, 20) (39, 40) and a base (18, 38) which are aligned orthogonally to the walls (19, 20) (39, 40). [6] Holding device (1) according to claim 2, characterized by , that the middle flange (25) has a groove (27) on its upper side (26) which runs parallel to the base plate (11) and to a groove (44) in the lower side (43) of the upper flange (35). [7] Holding device (1) according to claim 1, characterized by , that the arm (51) of the bracket (50) is Z-shaped and has three extensions (52, 53, 54), wherein the extension (54) at the first free end of the arm (51) is oriented opposite to the extensions (52, 53) at the other end of the arm (51), and a web (55) rises between the extension (54) and the extensions (52, 53), which forms an obtuse angle α between itself and the extension (54), and the two extensions (52, 53) are arranged parallel to each other and orthogonal to an upper web section (55a), wherein the web section (55a) is oriented orthogonally to the extension (54). [8] Holding device (1) according to claim 7, characterized by, that skids (58, 59) running in a row behind one another and parallel to the web section (55a) are arranged on the outriggers (52, 53) of the arm (51), which interlock with the grooves (17, 37) of the flanges (15, 35) in a comb-like manner. [9] Holding device (1) according to claims 7 and 8, characterized by , that the skids (58, 59) have an inclination relative to the undersides (56, 57) of the outriggers (52, 53), wherein the angles of the skids (58, 59) and grooves (17, 37) of the flanges (15, 35) of the support (10) are congruent. [10] Holding device (1) according to claims 7 to 9, characterized by , that on the underside (62) of the extension (54) of the arm (51) a grid (63) is arranged, which is formed from grooves (64) arranged parallel to the width of the web (55) and parallel one behind the other. [11] Holding device (1) according to claim 1, characterized by, that the holder (70) is angled and has a foot part (71) and a head part (82), both of which are connected to each other by a bridge (81) which forms an obtuse angle β between itself and the foot part (71) and the head part (82) is oriented orthogonally to the foot part (71). [12] Holding device (1) according to claim 11, characterized by , that on the upper side (73) of the foot part (71) of the holder (70) a grid (74) is arranged, which is formed from grooves (102) arranged parallel to the width of the web (81) and parallel one behind the other, and which interlocks with the grid (63) on the underside (62) of the extension (54) of the arm (51). [13] Holding device (1) according to claims 11 and 12, characterized by , that the foot part (71) is penetrated by an elongated hole (77) extending orthogonally to the grooves (102) of the grid (74). [14] Holding device (1) according to claim 11, characterized by, that the head section (82) has a recessed bed (83) with a trapezoidal elevation (84) on the opposite side, wherein the head section (82) is wedge-shaped at its free end (85) by forming a wall (86) running orthogonally to the foot section (71) as a tapered wedge surface (89) and the head section (82) is provided with a threaded bore (87) that passes through the elevation (84) and into the bed (83). [15] Holding device (1) according to claim 1, characterized by , that the receptacle (90) is T-shaped and consists of a vertical strut (91) which is penetrated in the lower section by a bore (101) and a cam (92) oriented orthogonally to this, which has a grid (99) on its upper side and the cam (92) is penetrated by an elongated hole (100). [16] Holding device (1) according to claim 15, characterized by, that in the lower section of the strut (91) a cam (88) rises, which is contoured to match the bed (83) of the head section (82) of the holder (70). [17] Holding device (1) according to claims 1 to 16, characterized by , that the means for releasing the adjustment comprise a screw (4) and preferably a square nut (3), wherein the screw (4) is screwed into the square nut (3) and the square nut (3) is slide-like in the adjacent grooves (27, 44) in the flanges (25, 35) of the support (10), wherein the screw (4) passes through the elongated hole (66) arranged in the upper web section (55a) of the arm (51). [18] Holding device (1) according to claims 1 to 17, characterized by , that the comb-like connection between the support (10) and the bracket (50) is formed by the skids (58, 59) of the bracket (50) which engage in the grid (16, 36) of the support (10).

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