METHOD FOR CONSTRUCTING WALLS

Description

[0001] Construction of a wall using an adjusting screw. In modern house construction, walls are increasingly erected as prefabricated components. For the purposes of this application, "walls" refers to the boundaries of individual rooms, which are either installed as interior walls within a house or as exterior walls to protect the interior. Interior walls typically have a thickness of 10-16 cm, while exterior walls are between 25 and 45 cm thick. Walls can be made of various materials, such as wood or plastic. The term "wall" also includes a so-called load-bearing wall, which merely provides the supporting framework of a wall and is completed with insulation and cladding once erected. Such walls are often also referred to as timber frame walls.To erect walls as prefabricated components, the position for erecting the wall is first determined and marked, according to the state of the art. The floor is then measured, and any unevenness is compensated for using a so-called mounting threshold, which is screwed to the floor. For the purposes of this application, these unevennesses are defined as differences in height that extend across the floor surface, resulting in higher and lower areas distributed throughout the floor. These unevennesses can sometimes amount to several centimeters and thus lead to unstable installation, making compensation for these unevennesses essential. In contrast, a level surface is therefore one that has no higher or lower areas, or where any such areas are within a tolerance range.Craftsmen often use the expression "level" or "leveled" to describe a flat surface.

[0002] The mounting sill is typically a wooden structure, which is leveled using washers of varying thicknesses to create a flat bearing surface for the wall. A readily malleable expanding mortar is poured between the mounting sill and the floor; this mortar expands in volume as it hardens, filling the gap between the sill and the floor.

[0003] This prior art method has the disadvantage that the construction and weighing of the mounting sill is very complex and therefore time-consuming, and consequently represents a significant cost factor in wall erection. Furthermore, document DE 195 49 535 C2 discloses a method for erecting a wall in which the wall is first positioned and held by means of triangular auxiliary structures. Leveling is achieved below the wall. The wall is laterally supported by support feet. Document WO 2018 / 104847 A1 discloses a support element used for constructing a wall. This element also incorporates adjusting screws that allow the support element to be adjusted on an uneven surface, ensuring that the support element is aligned straight (horizontally).After the support elements are aligned, they are secured with a fixing screw, and any cavities beneath them are filled with filler material. The support element is then completely encased in concrete, filling all the cavities. Finally, the wall section to be erected is placed on top of the support element.

[0004] The document "Adjusting washer FSW. For the easy assembly and adjustment of wooden beams and wooden sleepers" from FISCHER DEUTSCHLAND VERTRIEBS GMBH dated March 1, 2021 describes another method for constructing a wall.

[0005] The object of the present invention is therefore to provide a solution for eliminating the aforementioned disadvantage.

[0006] This is achieved by the subject matter of the independent claim according to the invention. Advantageous embodiments of the invention are contained in the dependent claims.

[0007] The unloaded adjusting screw for use in the inventive method for constructing a wall on an uneven floor surface has a threaded section of a specific length, designed to be screwed into the floor surface. The adjusting screw also has a screw head of a specific width and a flat bearing surface on its upper side, the upper side of the screw head being designed to serve as a bearing surface for the wall. The screw head and the threaded section can be formed integrally. It is also conceivable that the adjusting screw is formed in multiple parts, particularly two parts, for example, in the form of a screw head and a threaded section.For example, a base body comprising the screw shaft with the threaded section and optionally a threadless section as well as a head region may be provided. In such an embodiment, a support body may then be provided, which is designed to be irreversibly or reversibly attached to the head region of the base body and is fastened to it. In particular, the base body may be welded, screwed, or otherwise suitablely connected to the support body to form the adjusting screw.

[0008] The screw head is advantageously designed to be flat on both its upper and lower surfaces. This allows the distance between the top of the adjusting screw (the contact surface) and the base surface to be minimized, if desired.

[0009] In at least one embodiment of the invention, the adjusting screw has a non-flat, planar design on the underside of the screw head, for example a conical shape.

[0010] A novel method for constructing walls is enabled by means of the adjusting screw. In a first process step (A), the position of the wall to be erected / constructed is determined. This can be done, for example, by projecting the inner edge of the wall onto the floor surface. Subsequently, in process step (B), the surface is leveled (brought into place) at the highest point located along the area where the wall is to be erected, so that an imaginary flat surface is created along the determined position of the wall, hereinafter also referred to as the installation plane. Preferably, the uneven floor surface along the determined position of the wall is leveled using a spirit level or a laser level.

[0011] The position of the wall is defined here as the position at which a wall is positioned when erected. Assuming the underside of the wall rests on leveling screws, its horizontal position is determined by the position of these screws, such that the wall must rest at least partially, and preferably completely, on them. The leveling screws used are those with a threaded section of a certain length designed to be screwed into the floor, and a screw head with a flat bearing surface and a width designed to serve as a bearing surface for the wall.

[0012] In a vertical direction, the wall's position is defined by the bearing surfaces of the leveling screws. This means that the bearing surfaces of the leveled adjustment screws define a mounting plane for the wall at its base when erected. In a broader sense, the wall's position also refers to those areas related to the above definition of the wall, such as the area of ​​the floor surface where expanding mortar or another layer of material is applied, or where angles are used to fasten and secure the wall.

[0013] Leveling refers in particular to the alignment of the wall's position, or the side of the wall to be placed on the leveling screws, relative to the floor surface. In a preferred embodiment of the invention, this alignment is achieved such that the leveled wall has the minimum possible distance to the floor surface. This means that the leveling is performed on the plane, preferably horizontal, defined in the area of ​​the wall to be erected by the highest elevation of the floor surface. The wall, which is then positioned on the bearing surface of the leveling screws, thus has a minimal distance to the floor surface in this embodiment. The distance between the floor surface and the underside of the wall is determined by the height of the highest elevation in the floor surface and / or the thickness of the screw head.When using multiple leveling screws to create a level support surface, it is only necessary to ensure that the upper surfaces of the leveling screws, i.e., the bearing surfaces, are positioned above or at least at the same height as the greatest unevenness in the area of ​​the wall(s) on which the screws are placed. This allows for a reduction in material usage, for example, in the form of expanding mortar to support the wall on the floor.

[0014] In preferred embodiments of the present invention, leveling is performed relative to the underside of the adjusting screws, wherein the undersides in this embodiment advantageously have a flat surface. Depending on the specific geometry of the screw, leveling can also be performed relative to the top side of the adjusting screws or to another position on the screw, which may be provided, for example, by markings or other features on, in, or on the screw.

[0015] It is understood that in other embodiments, leveling can also be carried out relative to the highest elevation or the highest point of the floor surface such that the installation plane defined by the support surfaces is offset vertically from the plane in which the highest elevation of the floor surface ends, and which runs parallel to the installation plane. By leveling the installation plane to a higher level, a slope in the floor surface can, for example, be compensated for, a slope created, or a connection to adjacent objects, buildings, or structures can be enabled or provided. Furthermore, by providing a larger gap between the underside of the wall(s) to be erected, the choice of materials for supporting, fastening, and / or insulating the wall on the floor surface can be expanded.

[0016] When multiple walls are to be joined together, leveling is advantageously performed at or relative to the highest point in the area of ​​the intended wall position, or the area defined by the wall position, or the installation plane defined by the bearing surfaces of the adjusting screws. The plane that, in the desired orientation, passes through the highest point of the floor surface and relative to which leveling is to be performed, can therefore also be referred to as the leveling plane. In preferred embodiments of the invention, the leveling plane defined in this way runs horizontally, i.e., "in water." However, it is also conceivable to provide an inclined leveling plane.

[0017] Leveling can be achieved, in particular, by ensuring that the defined installation plane has no intersections with any elevations in the ground surface within the area of ​​a structure to be built, such as a house. If an elevation in the ground surface protrudes above the installation plane, laying flooring or other subsequent work could be made more difficult, which can be prevented or at least reduced according to the invention. In general, it is therefore possible to adjust and coordinate the position of one or more walls to be erected, and especially their distance from a ground surface, using one or more adjusting screws. This can make it possible to define a common height for erecting multiple walls.

[0018] It is also conceivable that the adjusting screws are designed such that their bearing surfaces form a plurality of planes that are offset from one another in a vertical direction. In this way, for example, stair-like structures can also be provided for walls that do not have a flat underside but a more complex shape. In some embodiments of the invention, in a further process step (C), at least two of the adjusting screws are mounted on the floor surface along the determined position of the wall such that the position of the underside of the screw heads of the adjusting screws corresponds to the leveled height. In a further step (D), at least one layer of material, for example, expanding mortar or another filler material, is applied to the floor surface along the determined position of the wall.In the last step of the process (E), the wall is then positioned on the expanding mortar and the adjusting screws in such a way that the wall rests on at least two adjusting screws.

[0019] Alternatively, another suitable supporting material, such as a different load-bearing mortar, or a non-load-bearing material, such as a filler or leveling compound and / or an insulating material or similar, can be used in the space below the wall to be erected. It is also conceivable that step (D) is carried out at a different, particularly later, time, for example, to subsequently fill the space between the underside of the wall and the floor surface.

[0020] In all embodiments, at least one intermediate layer can be provided between the adjusting screw and the wall. This intermediate layer can, for example, be at least partially flexible and, in particular, be in the form of a sealing strip or sealing element. Additionally or alternatively, the intermediate layer can have at least partial inherent rigidity and, for example, be in the form of a metal rail, a fitting, and / or a plastic strip.

[0021] Furthermore, it is possible that several layers of material, for example a combination of filler material and load-bearing material, are applied layer by layer and / or section by section next to each other in the space below the wall to be erected.

[0022] In at least one embodiment of the invention, the intermediate layer can be provided only in the area of ​​the adjusting screws, in particular on the top side of the adjusting screws, i.e. the contact surface.

[0023] In advantageous embodiments of the invention, a sealing layer, in particular a sealing tape, is provided at least in the area of ​​the adjusting screws. In a method provided according to the invention, a sealing layer, in particular a sealing tape, is advantageously provided at least partially, preferably over the entire surface, in the area of ​​the underside of a wall or walls to be erected, or this sealing layer is applied before the introduction of a leveling or filling compound between the adjusting screw and the wall or on the underside of the wall. In this way, the tightness of the wall can be improved.

[0024] Using the method according to the invention, it is possible to avoid the time-consuming and costly construction of the mounting threshold and still be able to erect walls safely and quickly.

[0025] In other embodiments of the invention, the leveling according to process step (C) is carried out relative to the top of the screw head or another area of ​​the screw, for example a mark, the start of the thread, or the like. Generally, the adjustment of the screws or the leveling is therefore carried out relative to a predetermined section or reference point of the adjusting screws, which may also include an offset, preferably vertical, of the installation plane relative to the leveling plane.

[0026] In an advantageous embodiment of the adjusting screw, the ratio between the length of the threaded section and the width of the screw head is between 1 and 2, preferably between 1.25 and 1.75, and particularly preferably 1.5. These ratios ensure that the width of the screw head is adequately dimensioned in relation to the thread length. The heavier the wall being erected, the wider the screw head must be, and the longer and stronger the threaded section must also be. Based on these ratios, the correct screw dimensions can be achieved for most walls.

[0027] In some embodiments of the invention, the length of the threaded section is equal to the length of the screw shank. In other embodiments of the invention, it is conceivable that the shank of the screw also has a section that is unthreaded. Such a section is advantageously provided between the screw head and the threaded section. This also applies to a non-flat design of the underside of the screw head, such as a conical screw head, whereby in particular the geometric shape of the underside of the screw can be considered a threadless section in this case.

[0028] Furthermore, an embodiment of the adjusting screw is advantageous in which the width of the screw head is at least 3 cm, preferably at least 5 cm, and particularly preferably at least 7 cm and / or a maximum of 16 cm, preferably a maximum of 13 cm, and particularly preferably a maximum of 10 cm. The width of the screw head is defined by its widest point. A minimum screw head width prevents the wall from being deformed by the screw head when it is placed upon it. Conversely, the screw head must not be too large, as this could cause it to protrude beyond the width of particularly thin walls.

[0029] Similarly, the thread must also have a minimum thickness to withstand the weight of the wall. A minimum thickness of 4 mm is advantageous, preferably 6 mm, and particularly preferably 8 mm, while a maximum thickness of 20 mm, preferably 18 mm, and particularly preferably 16 mm is also advantageous.

[0030] In a further advantageous embodiment of the adjusting screw, it features a screw head drive to simplify its installation. A screw head drive is understood to be a characteristic indentation or shape on the screw head against which a suitable screwdriver or wrench can be engaged to turn the screw into the designated thread or unthreaded material. Common examples of screw head drives include slotted, external hexagon, external square, internal hexagon, Phillips, or internal Torx. Any screw head drive shape is conceivable for the adjusting screw, as long as the top of the screw head remains flat and does not need to be curved. It is also conceivable for an adjusting screw to have two or more identical or different screw drives.

[0031] In an advantageous embodiment of the invention, the screw head drive is realized by two holes of a defined cross-section in the screw head. This ensures that the corresponding tool, which has pins that fit into the holes, can be securely attached, as the pins of the tool engage in the holes of the screw head drive, allowing sufficient force to be transmitted to the screw. Furthermore, this embodiment makes it possible to provide minimal recesses on the top of the screw head, thus ensuring a homogeneous weight distribution of the wall on the screw head. In an advantageous embodiment of the method according to the invention, the expanding mortar is applied in process step (D) such that the adjusting screws form a depression in the surface of the expanding mortar.A depression refers to a kind of hollow or indentation in the expanding mortar at the locations of the screw heads, whereby no expanding mortar reaches the tops of the screw heads. In this embodiment, in process step (E), the wall is erected in such a way that the portion of the expanding mortar that protrudes above the adjusting screws is displaced. This embodiment has the advantage that it ensures sufficient expanding mortar is present beneath the wall to support it when dry, thus relieving the load on the adjusting screws and increasing safety and stability.

[0032] In a further advantageous embodiment of the invention, at least one bracket is provided for fastening and / or positioning the wall on the floor surface, wherein a first leg of the bracket is fastened to the wall and a second leg of the bracket is fastened to the floor surface. The at least one bracket is preferably mounted on the floor surface according to method step (A). Fastening by means of the brackets represents a reliable, simple, and cost-effective way to keep the wall in the desired position long-term.

[0033] Another advantageous embodiment of the method according to the invention involves the use of a sealing tape. This is preferably applied between process steps (D) and (E) to the expanding mortar and the adjusting screws in such a way that no expanding mortar is present between the sealing tape and the adjusting screws. The sealing tape can, for example, be attached to the adjusting screws using double-sided adhesive tape. Firstly, it prevents expanding mortar from oozing onto the top of the screw head of the adjusting screw when the wall is erected, thus preventing an uneven bearing surface for the wall. Secondly, the sealing tape ensures that no leaks occur in the wall, which would prevent the rooms to be separated by the wall from being properly separated from one another.

[0034] In In another embodiment of the invention, the sealing tape can also be applied after the wall has been erected at the transition between the wall and the floor and can be attached to both the floor surface and the wall to guarantee the tightness of the wall.

[0035] The method according to the invention is particularly suitable for positioning walls, wall elements, interconnected wall elements, or other building elements to be arranged in a vertical direction relative to each other or to a reference plane. The wall elements are preferably freestanding or, at the time of application of the described method, freestanding or not completely framed.

[0036] While the present invention is particularly suitable and intended for the erection and adjustment of walls in timber construction, other areas of application are also conceivable. For example, the use of the adjusting screws is equally suitable for erecting precast concrete elements, other partition walls, or for leveling larger surfaces. Furthermore, their use for the vertical adjustment of foundations, such as socket foundations, or similar structures is also possible. For such applications, it may only be necessary to adapt the proportions of the adjusting screws, i.e., the ratio of screw head width to thread length, to the specific application.

[0037] The invention will now be explained in more detail with reference to the accompanying figures. The figures show: Fig. 1 shows an adjusting screw in a first embodiment. Fig. 2 shows another adjusting screw in a further embodiment. Fig. 3a shows an uneven floor surface on which a wall is to be built using the adjusting screw according to the inventive method. Figs. 3b-f each show a section of the Fig. 3a The floor area shown illustrates the process steps of the invention for constructing a wall.

[0038] Fig. 1 Figure 1 shows an adjusting screw 10 in a first embodiment. It has a round screw head 12 with a width b and a threaded section 11 with a length I. The threaded section 11 has a thread configured for screwing into a suitable floor covering, for example, concrete. The screw head 12 has a bottom surface 14 and a top surface 15. The screw head 12 is connected to the threaded section 11 on the bottom surface 14. The top surface 15 (in Fig. 1 The side of the screw head 11 (not shown) is therefore the side opposite the underside 14. The screw head 11 also includes a screw head drive 13, which in this embodiment consists of two holes of a specific cross-section extending continuously from the top 15 to the underside 14. The two holes are arranged opposite each other on the screw head 11, with the threaded section 11 located between them. The screw head drive 13 allows the screw to be rotated and driven into a material. In other embodiments of the invention, it is also possible for the holes not to extend completely through the screw head.

[0039] In the illustrated embodiment, the threaded section 11 and the screw head 12 are each assembled from different parts to jointly form the adjusting screw 10. One could therefore speak of a two-part embodiment. However, one-piece embodiments of the invention are also conceivable, in which the screw head 12 and the threaded section 11 are manufactured from a single part. Likewise, the Fig. 1 One embodiment in which the threaded section 11 is completely covered with a thread. The total length of the screw would therefore be the sum of the thickness of the screw head 12 and the length I of the threaded section 11. Embodiments that have a threaded section 11 with a shank and a thread are also possible. For example, a threadless section with a predetermined length d – not shown in the figures – can be provided between the screw head 12 and the threaded section 11. In such an embodiment, the total length of the screw would then be the sum of the thickness of the screw head 12, the length I of the threaded section 11, and the length d of the threadless section. The length d of the threadless section can be selected depending on the intended use of the adjusting screw 10.It is understood that other thread types may also be used, for example, with multiple threaded sections alternating with unthreaded sections and / or with varying thread thickness, and similar configurations. This can, in particular, facilitate the selection of a suitable screw depending on the material and condition of the base surface. Fig. 2 shows another embodiment of the adjusting screw, wherein this is the one in Fig. 1 The embodiment shown largely corresponds to the embodiment and differs only in the shape of the screw head drive 13. Instead of two holes, the one shown in Fig. 2 The screw head drive 13 shown has a known external hexagon. In addition, the adjusting screw 10 is made of Fig. 2 shown from a different perspective, so that the top 15 of the screw head 12 in Fig. 2 is clearly visible.

[0040] One advantage of the screw head drive 13 in the form of an external hexagon is that the top 15 of the screw head is continuous and has no holes, thus allowing the load of the wall 20 (not shown) to be distributed evenly across the screw head. Another advantage is that no special tools are required for assembly, as external hexagon drives are widely used. However, a disadvantage is that, depending on the width b of the screw head 12, very large tools may be required. The width b of the screw head 12 refers in this case to the widest point of the screw head 12.

[0041] Fig. 3a Figure 1 schematically shows an uneven floor surface 30 in profile, onto which a wall 20 (not shown) is built using the adjusting screw 10 according to the inventive method. It is clearly visible that the floor surface 30 has unevenness and thus higher and lower areas. The highest point of the floor surface 30 is referred to as the highest point 31.

[0042] Fig. 3b shows an excerpt of the in Fig. 3a The floor surface 30 is shown. The unevenness has been exaggerated to better illustrate the method according to the invention. Two angles 50 are visible, each fixed to the floor surface 30 and marking the previously determined position of the wall 20 (not shown). The angles 50 each have a first leg 51 extending vertically upwards from the floor surface 30. The wall 20 will later be attached to these legs. Furthermore, each angle 50 has a second leg 52 (not shown) extending into the plane of the drawing at a 90-degree angle to the first legs 51 and fixed to the floor surface 30.

[0043] Furthermore, a leveling line 31a is visible, which levels the ground surface 30 and is perfectly horizontal, intersecting the highest point 31. The leveling line 31a is therefore "in the water".

[0044] Fig. 3c also shows the in Fig. 3b The section of uneven ground surface 30 shown is depicted. Using the leveling line 31a, it is now possible to screw adjusting screws 10 into the ground surface 30. These are screwed in until the undersides 14 of their screw heads 12 are at the level of the leveling line 31a. The adjusting screws 10 – 2 of which are visible in the section shown – are driven into the ground at regular, not too large intervals.

[0045] In Fig. 3d The applied expanding mortar 32 can be seen, which was applied in a layer to the base surface 30. The expanding mortar 32 extends above the top surface 15 of the screw heads 12, so that depressions 33 are formed at the locations of the adjusting screws 10, which appear as indentations in the expanding mortar 32.

[0046] Fig. 3e Figure 1 shows a sealing tape 40 (dashed line) which has been placed over the expanding mortar 32 and the screw heads 12 of the adjusting screws 10. The sealing tape 40 can be secured to the screw heads 12, for example, using double-sided adhesive tape, so that the sealing tape 40 is attached to the screw head 12 over its entire width b.

[0047] In Fig. 3f It is evident that the wall 20 was erected on the sealing strip 40, and thus on the expanding mortar 32 and the screw heads 12. The portion of the expanding mortar 32 extending above the screw heads 12 was displaced by the weight of the wall 20. The sealing strip 40 prevents the expanding mortar 32 from reaching the top 15 of the screw heads 32, and therefore also prevents the wall 20 from being erected at an angle, i.e., not horizontally.

[0048] Until the expanding mortar 32 hardens, the wall 20 is essentially supported by the screw heads 12 of the adjusting screws 10. As the expanding mortar 32 hardens, however, it expands and gradually relieves the load on the adjusting screws 10. Once the wall 20 is in the desired final position, it is secured via the first legs 51 of the angle brackets 50. REFERENCE MARK LIST

[0049] 10 Adjusting screw 11 Threaded section 12 Screw head 13 Screw head drive 14 Underside (of the screw head) 15 Top (of the screw head) 20 Wall 30 Floor surface 31 Highest point (of the floor surface) 31a Leveling line 32 Expanding mortar 33 Sink 40 Sealing tape 50 Angle 51 First leg 52 Second leg b Width of screw head l Length of threaded section

Claims

1. Method for constructing a wall (20) on an uneven floor surface (30), comprising the following steps (A) determining the position of the wall (20) to be constructed, (B) leveling the highest point of the floor surface (30) along the specified position, (C) mounting at least two adjusting screws (10) along the specified position of the wall (20), wherein the upper face (14) of the screw heads (12), the lower face of the screw heads (12) or a reference point on the screw each correspond to the leveled height of the highest point (31) of the floor surface (30), and wherein each adjusting screw has a threaded portion (11), with a thread and a length (I) that is designed to be screwed into the floor surface (30), and a screw head (12), with a flat bearing surface and a width (b) that is designed to function as a bearing surface for the wall (20), (D) applying a layer of material, for example a filling layer, in particular swelling mortar (32), to the floor surface (30) along the specified position of the wall (20), (E) erecting the wall (20) on the adjusting screws (10) such that the wall (20) rests on at least two adjusting screws (10).

2. Method according to claim 1, wherein in step (C) the lower face (14) of each of the screw heads (12) corresponds to the leveled height of the highest point (31) of the floor surface (30).

3. Method according to either claim 1 or claim 2, wherein in method step (D) the application of the material layer is carried out such that the adjusting screws (10) form a depression (33) in the surface of the material layer and wherein in method step (E) the erection of the wall (20) is carried out such that the part of the material layer which protrudes in height above the adjusting screws (10) is displaced.

4. Method according to any of claims 1 to 3, wherein at least one angle section (50) is provided for fastening and / or securing the position of the wall (20) on the floor surface (30), wherein a first leg (51) of the angle section (50) is attached to the wall (20) and a second leg (52) of the angle section (50) is attached to the floor surface (30), wherein preferably the at least one angle section is mounted on the floor surface (30) according to method step (A).

5. Method according to any of the preceding claims 1 to 4, wherein a further method step is provided between method steps (D) and (E) in which a sealing tape (40) is applied to the material layer and the adjusting screws (10) such that there is no material layer between the sealing tape (40) and the adjusting screws (10).

6. Method according to any of claims 1 to 5, wherein the material layer comprises swelling mortar (32).

7. Method according to any of claims 1 to 6, wherein step (D) is performed at least in part after step (E).

8. Method according to any of claims 1 to 7, wherein the wall is a wall of a prefabricated building, in particular a wall comprising wood and / or concrete.

9. Method according to any of claims 1 to 8, wherein an adjusting screw is used in which the ratio between the length (I) of the threaded portion (11) and the width (b) of the screw head (12) is between 1 and 2, preferably between 1.25 and 1.75 and particularly preferably 1.5.

10. Method according to any of claims 1 to 9, wherein an adjusting screw is used in which the width of the screw head (12) is at least 3 cm, preferably at least 5 cm and particularly preferably at least 7 cm and / or at most 16 cm, preferably at most 13 cm and particularly preferably at most 10 cm.

11. Method according to any of claims 1 to 10, wherein an adjusting screw is used in which the thickness of the thread is at least 4 mm, preferably at least 6 mm, particularly preferably at least 8 mm and / or a maximum of 20 mm, preferably a maximum of 18 mm and particularly preferably a maximum of 16 mm.

12. Method according to any of claims 1 to 11, wherein an adjusting screw is used in which the screw head (12) has at least one screw head drive (13).

13. Method according to any of claims 1 to 12, wherein an adjusting screw is used in which the at least one screw head drive (13) is realized by two holes of a defined cross-section in the screw head (12).

14. Method according to any of claims 1 to 13, wherein an adjusting screw is used in which the adjusting screw (10) has a screw shank with a threadless portion and the threaded portion (11).