Wooden component with a body and method for its manufacture

Abstract

In the case of a wooden component (1) designed to form part of a wood-concrete composite component, with a notch (2) having a first end (3) designed to transmit shear forces and extending at a first angle to the surface of the wooden component (1) having the notch (2), and having a second end (6) opposite the first end (3), and having a recessed area (4) adjacent to the first end (3) between the first end (3) and the second end (6), and having a rising area (5) adjacent to the second end (6), and being free of undercuts with respect to shear forces and bounded on both sides by the material of the wooden component (1), the invention proposes that the rising area (5) be designed as a convex, arc-shaped recess. Furthermore, the invention proposes a method for manufacturing such a wooden component (1).

Description

[0001] The invention relates to a wooden component with a notch according to claim 1, and a method for its manufacture.

[0002] In practice, it is known that in timber-concrete composite elements subjected to bending, the transfer of shear forces between the timber and concrete components of the composite element is facilitated by a positive fit between these two components. For this purpose, a recess is created in the timber component, referred to as a notch, into which a projection of the concrete component engages. For example, the concrete component can be cast with the timber component, with the surface containing the notch, forming part of the formwork, so that the concrete precisely and positively fills the notch. In use, the notch serves to transfer a shear force at the joint between the timber and the concrete.

[0003] To ensure that the individual components of the timber-concrete composite element can be processed and, in particular, reused as efficiently as possible after reaching the end of their service life, it is desirable to separate the timber component from the concrete component. To minimize the required separation forces, the notch can have two distinct ends in the longitudinal direction of the shear forces: a first end serves to facilitate the transfer of these forces. This first end extends at an angle to the surface of the timber component, for example, at a 90° angle, into the depth of the timber component, typically to the bottom of the notch.The two end faces of the notch on the one hand and the concrete projection on the other, which abut each other at this first end of the notch and are typically oriented approximately perpendicular to the longitudinal direction of the shear forces, cause considerable frictional forces and thus separation forces when separating the wooden component from the concrete component, which make separating the two components from each other more difficult.

[0004] The opposite end of the notch is not intended to transmit shear forces. If shear forces are to be transmitted in both directions, two notches can be arranged in the wooden component, each with its first end facing in opposite directions. The second end of the notch can then taper off to a shallower slope to minimize friction between the wooden and concrete components when they are to be separated. This results in a notch shape with a deep section adjacent to the first end, followed by a rising section that slopes upwards towards the second end of the notch.

[0005] The groove is typically created by a milling operation. For example, a cylindrical milling tool with a relatively small diameter, a so-called finger cutter, can be used to create a groove that appears rectangular in plan view, with radii at the four corners corresponding to the radius of the cylindrical finger cutter. Both the depth and the rising portion of the groove can be created by guiding the finger cutter along a corresponding path.

[0006] For ecological reasons, it is advantageous to be able to recycle or reuse the components of a wood-concrete composite element in a sorted manner. Therefore, designing a separable wood-concrete composite element to be as economical as possible increases its practical acceptance compared to using ecologically disadvantageous, non-separable wood-concrete composite elements.

[0007] The invention is based on the objective of improving a generic wooden component in such a way that it can be manufactured particularly economically and, after use, the separability of the wooden component from the concrete component of the wood-concrete composite element is improved. Furthermore, the invention is based on the objective of providing a method for manufacturing such a wooden component.

[0008] Features according to the invention are specified in claims 1 and 7. Embodiments are the subject of the dependent claims.

[0009] In other words, the invention proposes that the rising area not be designed as an obliquely rising plane, but rather as a convexly arc-shaped recess, so that the wooden component is concave in the rising area. The area rising towards the second end of the notch can preferably open directly into the surface of the wooden component at the second end, or it can connect at the second end to a small section which, as at the first end, slopes at a steeper angle, e.g.,also runs at the first angle to the surface of the wooden component, but has a considerably smaller area than the end face at the first end of the notch. While the deep section of the notch can be produced in a known manner using a finger cutter, the inventive design of the notch makes it possible to use a second milling tool to produce the rising section, namely a cylindrical milling tool with a considerably larger diameter than the finger cutter.

[0010] Due to the required tool change, the wooden component according to the invention appears to require more complex manufacturing than a generic wooden component with a notch whose rising section ascends in a straight, oblique direction. However, surprisingly, a correspondingly large second milling tool allows a recess to be milled into the wooden component so quickly that the time required for the tool change is more than compensated for, and the notch can be produced in a shorter time. Initial, non-public practical trials have shown that a time saving in the double-digit second range can be achieved for producing a notch, compared to producing a notch using only a finger cutter.Assuming, for example, that a wooden component of a wood-concrete composite element designed as a wooden beam has 6 to 8 notches and a wood-concrete composite element designed as a ceiling has approximately 4 wooden beams, and accordingly 32 notches must be created for a ceiling, there is a significant economic advantage for the manufacturing costs of a ceiling designed according to the invention which has wooden components.

[0011] According to the invention, the notch is further designed in a specific way to be free of undercuts, namely such that a positive locking mechanism is avoided in the finished timber-concrete composite component, which would counteract the separating forces that tend to separate the timber component from the concrete component, and wherein the separating forces act in a direction perpendicular to the surface of the timber component bearing the notch. Avoiding such a positive locking mechanism facilitates the separation of the timber component from the concrete component after use, so that these two components of the timber-concrete composite component can be separated from each other with minimal effort after its service life. This minimal effort required for separation is economically advantageous.Finally, the separability allows the two components of the wood-concrete composite element to be subsequently used or recycled, thus also having a positive impact on the economic efficiency of the wood-concrete composite element.

[0012] Finally, according to the invention, the notch is bounded by the material of the wooden component not only at its first and second ends, but also on both sides. Thus, the wooden component itself can form the formwork for the concrete material that is to fill the notch. Elaborate sealing measures, which would otherwise be necessary if the notch extended across the entire width of the wooden component, for example, the aforementioned wooden beam, are therefore unnecessary. Furthermore, the side walls, as well as the end wall at the first end of the notch, contribute to holding forces that, in the use of the timber-concrete composite component, support the cohesion of the wooden component with the concrete component, so that additional securing or connecting elements intended to ensure such cohesion can potentially be dispensed with.

[0013] A wooden beam with a rectangular cross-section is frequently mentioned below, for example, to illustrate directional information. The wooden beam is used merely as an example of a wooden component within a timber-concrete composite element, without limiting the invention to this example or excluding other forms of wooden components such as blocks or panels. However, a preferred application of the invention is indeed to create a wooden beam with notches, which serves to manufacture a timber-concrete composite element known as a ribbed slab, intended to form the ceiling of a building. The concrete component of the ribbed slab is designed as a slab, and several wooden components in the form of wooden beams act as ribs to form a plate-like beam or a T-shaped cross-section and to absorb bending forces.

[0014] Referring to the aforementioned wooden beam, a small pocket, compared to the full notch, can first be milled into the wooden component using the end mill. This pocket forms part of the total notch to be created and marks its first end, for example, a surface that runs perpendicular to the length of the wooden beam and extends into the depth of the beam, perpendicular to its surface. The second milling tool has a larger diameter than the end mill to allow for faster work progress. For example, a similarly elongated, cylindrical milling tool can be used, which is aligned lengthwise along the wooden beam and at an angle to its surface, and then penetrates the surface of the wooden beam. The resulting curve of the recess within the wooden component runs perpendicular to the length of the wooden beam.The second milling tool must have a diameter that is smaller than the width of the wooden beam, so that material of the wooden component remains on both sides next to the notch to form the formwork for the concrete material to be poured into the notch.

[0015] Alternatively, in a configuration considered advantageous, the curve of the recess can run longitudinally along the wooden beam, i.e., from the first to the second end of the notch. In this case, the second milling tool is aligned so that its axis of rotation or central axis runs parallel to the surface of the wooden component and thus, for example, perpendicular to the direction in which the first milling tool was previously aligned—namely, perpendicular to the surface of the wooden component during the creation of the notch's depth. Referring to the application example of a wooden beam, the axis of rotation runs perpendicular to the longitudinal axis of the wooden beam and parallel to its surface, into which the pocket was previously milled using the end mill.Because the curve of the recess runs lengthwise along the wooden beam, a relatively flat cylindrical milling tool can be used, whose diameter is considerably larger than its axial length. For the reasons mentioned above, the axial length must be less than the width of the wooden beam. The significantly larger diameter of the second milling tool allows for particularly rapid progress in the production of the wooden component and, moreover, minimizes the separation forces later on. This is because, due to the large radius of the bend, the rising section of the notch can meet the surface of the wooden component at a correspondingly shallow angle, which helps to keep the frictional forces between the two components as low as possible during the separation process.

[0016] When creating the aforementioned pocket that forms the first end of the notch, the operating time of the end mill can be advantageously minimized if this pocket extends lengthwise along the notch only far enough to allow the second milling tool to penetrate the wooden component without damaging the first end. Otherwise, this could either increase the required cutting forces or reduce the transmissible shear forces. The dimensions of the pocket created by the end mill can therefore be determined based on the dimensions of the second milling tool. The depth of the pocket can then be determined by the desired depth of the notch, thus eliminating the need for any further machining in this area.If the groove is to be longer than required to insert the second milling tool, this length can be achieved by first inserting the second milling tool into the wooden component to the desired depth, at which point it is flush with the bottom of the pocket. This already creates a groove designed according to the invention. To increase its length to a predetermined dimension, the second milling tool can then be moved longitudinally along the groove to be created, thus extending the groove's depth.

[0017] Advantageously, the rebate cutter used has an axial length that corresponds to the width of the notch to be produced. However, if the desired width of the notch is greater than the axial length of the rebate cutter, the cost of a special tool that would otherwise be required can be saved by moving the rebate cutter axially along its axis of rotation in two or more steps and reinserting it into the wooden component each time to create the desired width of the deep section and the rising section of the notch.

[0018] In the last described design of the wooden component, the notch can advantageously have a constant width from its first to its second end. This avoids steps within the notch that could lead to stress concentrations in the concrete material filling the notch. The constant width can be achieved, for example, by ensuring that the axial length of the cylindrical second milling tool corresponds exactly to the width of the pocket previously created in the wooden component using the finger cutter.

[0019] After the service life of the timber-concrete composite element has expired, the timber component can be recycled. This can be done by separating the concrete and timber components. The timber component, including the at least one notch within it, can then be reused, or it can be used for other applications besides creating a timber-concrete composite element. In this case, the notches can be removed. This can be achieved, for example, by removing a specific layer thickness from the timber component, namely the layer containing the at least one notch. This layer can be removed, for instance, by sawing or milling. If, for example, the timber component is designed as a timber beam, after removing the layer containing the notch, the timber component can be used as a timber beam with a correspondingly reduced cross-sectional area.

[0020] If the timber component is designed as a timber beam, it consists, in one embodiment, of several layers arranged one above the other, referred to as lamellae. In an advantageous embodiment of the timber-concrete composite element, and when using such a lamellar timber beam, the notch is dimensioned so that it is located exclusively in the uppermost lamella. For example, it is known in practice to use timber beams that have a height of, say, at least 280 mm and consist of lamellae that are approximately 40 mm thick. In the aforementioned advantageous embodiment, the multiple notches in the timber beam can each have a depth of, for example, approximately 35 mm and are thus located entirely and exclusively in the uppermost lamella. For recycling the timber beam, this allows the uppermost lamella, and therefore all the notches, to be removed.Even with deeper notches, if they extend through the first lamella and beyond, an advantageous treatment of the timber beam after the service life of the timber-concrete composite element can consist of completely removing the affected lamellae, e.g., the top two lamellae of the timber beam. This creates a nearly new timber beam with standardized, practical dimensions, determined by the number of remaining lamellae. Limiting the notches to the uppermost lamella is economically advantageous because removing only a single lamella ensures the remaining timber beam is of the highest possible quality.

[0021] The rising section of the notch can terminate below the surface of the timber component at its second end, allowing shear forces to be transferred between the timber and concrete components of the timber-concrete composite element in the opposite direction, albeit to a correspondingly small extent. The smaller transfer area compared to the first end still facilitates the separation of the two components of the timber-concrete composite element. However, in an advantageous embodiment, the rising section extends to the surface of the timber component, thus minimizing the separation forces required.

[0022] The inventive method for creating a wooden component according to the invention comprises the process step of creating a first end of the notch, which is designed to absorb shear forces and extends at a first angle to the surface of the wooden component that has the depression to be formed by the notch. A second process step consists of creating a second end of the notch, which is opposite the first end and extends at a second angle to the surface of the wooden component that has the depression, and wherein this second angle is shallower than the first angle. Thirdly, the method comprises the step of creating a bottom of the notch between the first and second ends, which has a low-lying area adjacent to the first end and an ascending area adjacent to the second end, namely, which rises from the low-lying area to the second end.In the method designed according to the invention, a first milling tool creates the first end of the notch and the deep area is created completely or at least partially. A second milling tool creates the second end and the rising area of ​​the notch.

[0023] The order is essentially irrelevant. For example, the so-called second milling tool can be used first to create the rising section and the second end of the notch, and possibly also part of the depth if this second milling tool is moved longitudinally along the notch. The so-called first milling tool is then used in this process to enlarge the created recess, for example, using the aforementioned end mill, in order to create the first end and all or part of the depth of the notch. Alternatively, as explained above, the so-called first milling tool can indeed be used first, followed by the so-called second milling tool.

[0024] Regarding the use of the two milling tools, one embodiment of the method allows the same milling machine to be used, i.e., the same drive unit with, for example, an electrically driven motor. To be able to use the two different milling tools successively, a tool change is performed on this milling machine, for example, by inserting the two different milling tools successively into the same tool holder and removing the previously used milling tool from the tool holder.

[0025] To minimize the time required for tool changes, one embodiment of the process allows the wooden component to be moved relative to the milling unit. This is achieved by moving either the component or the milling unit, enabling the same tool to be used to perform the necessary work at several or all points on the component where a notch is to be created. The tool is then changed, and the previously created recesses are further refined into the desired notches at all points using the new tool. This is accomplished by again moving the component and / or the milling unit relative to each other.

[0026] As an alternative to this cost-saving design of the process, two separate milling machines can be used, each equipped with its own milling tool, or one machine with two milling units. This eliminates the time otherwise required for tool changes. Secondly, both tools can be used simultaneously at different locations on the wooden component, so that, for example, one tool is used to complete a notch while the second tool begins creating a new notch elsewhere on the component.

[0027] Further features, details and advantages of the invention will become apparent from the wording of the claims and from the following description of exemplary embodiments with reference to the drawings. The drawings show: Fig. 1 a top view of a section of a wooden component designed as a wooden beam with a notch arranged therein, Fig. 2 a longitudinal section through the upper area of ​​the wooden beam section of Fig. 1 , Fig. 3 a section similar to Fig. 2 concerning the creation of a conventional notch by a method which is not the subject of the invention, and Fig. 4 a cut similar to Fig. 2 for two successive process steps carried out according to the invention for producing the notch of a wooden component according to the invention.

[0028] Fig. 1 shows a top view of a section of a wooden component 1, which in the illustrated embodiment is designed as a wooden beam with a rectangular cross-section.

[0029] Fig. 2 shows a vertical longitudinal section through the wooden beam, with only the upper area of ​​the wooden component 1 being shown.

[0030] The timber component 1 is intended to form part of a timber-concrete composite element. The top surface of the timber component 1 has a recess designed as a notch 2, with several such notches 2 arranged along the length of the timber beam in two opposite orientations, so that the notches 2 serve to transmit shear forces in the longitudinal direction of the timber beam in both opposite directions.

[0031] The notch 2 extends longitudinally along the timber component 1 and has a first end 3, which serves to transfer shear forces to a concrete component that forms another part of the timber-concrete composite element and engages in the notch 2 with a projection. Typically, the concrete component is cast from a plastically deformable concrete material, with the timber component 1 forming part of the formwork for the concrete component, so that the concrete material fills the notch 2 precisely and completely. The first end 3 serves to transfer the shear forces between the concrete component and the timber component 1. Fig. 2 It becomes clear that in the illustrated embodiment, the first end 3 extends perpendicularly to the surface of the wooden component 1 into the interior of the wooden component 1.

[0032] The first end 3 is followed by a low-level section 4 of the notch 2. The notch 2 reaches its maximum depth in this low-level section 4. Adjoining the low-level section 4, at a distance from the first end 3, is an ascending section 5 of the notch 2, which extends upwards to a second end 6 of the notch 2. Fig. 2 It becomes clear that in the illustrated embodiment, the rising area merges into the surface of the wooden component 1 without the notch 2 extending perpendicularly into the wooden component 1 at this second end 6. Therefore, the second end 6 is not intended to transmit shear forces.

[0033] The width of the notch 2 is less than the width of the wooden component 1, so that the notch 2 is bounded by two sides 7 between the first end 3 and the second end 6. In plan view, the notch 2 has a substantially rectangular plan, with the corners of this plan being rounded at the transition from the first end 3 to the two sides 7, while the corners of the plan do not have such rounding at the transition from the two sides 7 to the second end 6. This is due to the manufacturing process used to produce the notch 2, as explained below: Fig. 3 explained in a similar way in a section Fig. 2The production of a conventional groove 2, whereby this method of production and the resulting groove 2 are not the subject of the present invention. A groove 2 is milled into the surface of a wooden component 1 using an elongated cylindrical milling tool, which is driven to rotate about its central axis 8 and which, due to its diameter-to-axial-length ratio, is called a finger cutter 9. The groove 2 extends at its two ends 3 and 6 perpendicular to the surface of the wooden component 1 into the depth of the wooden component 1. Due to the diameter of the finger cutter 9, not only two, but all four corners of the groove 2 have rounded edges similar to the two shown in [reference missing]. Figs. 1 and 2 The rounded edges shown in the transition area from the first end 3 to the two sides 7.

[0034] In Fig. 3The illustration shows, purely as an example, that the notch 2 has a constant depth along its entire length. Alternatively, by appropriately controlling the milling machine and by adjusting the corresponding movements of the end mill 9, the notch 2 can also be created with a deep section 4 and a rising section 5. The diameter of the end mill 9 is significantly smaller than the length and width of the notch 2, so that to create the notch 2, the end mill 9 must be moved in zigzag, spiral, meandering, serpentine, or similar paths to produce the entire recess in the wooden component 1 that forms the notch 2.

[0035] Fig. 4 clarifies in contrast to Fig. 3 an inventive method for producing a notch 2 designed according to the invention, for example the one described in the Figs. 1 and 2 depicted notch 2. Left in Fig. 4The figure shows how, in a first step, a recess is created in the wooden component 1 using a finger cutter 9. This recess already forms the first end 3 and the deep section 4 of the notch 2. As indicated by an arrow, a second step follows the first, with a change of the milling tool occurring between these two steps. Instead of the finger cutter 9, with its central axis 8 oriented transversely to the surface of the wooden component 1, a rebate cutter 10 is used. The rebate cutter 10 is also designed as a cylindrical tool, but it is guided such that its central axis 8 is aligned parallel to the surface of the wooden component 1. Furthermore, the diameter of the rebate cutter 10 is larger than its axial length.

[0036] In the illustrated embodiment, the axial length of the rebate cutter 10 is exactly the same as the width of the notch 2 to be created. Therefore, the rebate cutter 10 does not need to be moved in either the longitudinal or transverse direction of the wooden beam, but only needs to be guided perpendicular to the surface of the wooden component 1 into the wooden component 1, thereby creating the rising section 5 and the second end 6 of the notch 2 along its circumference. Due to its circular circumference, the rising section 5 is created as a convex recess in the wooden component 1, so that the wooden component 1 is correspondingly concave below the rising section 5. In the right part of the Fig. 4The figure therefore shows the already completed groove 2, with the rebate cutter 10 still located in the groove 2. If, contrary to the illustrated embodiment, the axial length of the rebate cutter 10 is less than the width of the groove 2 to be created, the rebate cutter 10 is moved in its axial direction and plunged into the wooden component 1 two or more times in order to create the desired width of the groove 2.

[0037] At the in Fig. 4 In the illustrated embodiment, the recessed area 4 is dimensioned to be long enough that the rebate cutter 10 can be inserted into the wooden component 1 and create the rising section 5 of the notch 2 adjoining the recessed area 4, without altering the design of the first end 3. The design according to Fig. 4Figure 1 shows the minimum length of the deep section 4 that allows such handling of the rebate cutter 10. Alternatively, the length of the deep section 4 can also be shorter, thus reducing the time required for the first work step using the finger cutter 9, provided it is acceptable that the rebate cutter 10 comes into contact with the first end 3 and, for example, creates a chamfer at the transition from the first end 3 to the top surface of the wooden component 1. Furthermore, in deviation from the figure shown in Figure 1, the length of the deep section 4 can be shorter. Fig. 4 In the illustrated embodiment, the length of the recess 4 can also be made larger by moving the rebate cutter 10 longitudinally along the wooden beam and away from the first end 3 while it plunges into the wooden component 1. This also allows the operating time of the finger cutter 9 to be kept as short as possible, since it does not have to create the entire length of the recess 4.

[0038] In contrast to the illustrated embodiment, the two work steps for creating the notch 2 can also be carried out in reverse order: first, the rising area 5 and the second end 6 of the notch 2 can be produced using the rebate cutter 10, and if necessary, also a section of the deep area 4. Subsequently, the deep area 4 can be completely produced or at least completed using the finger cutter 9, and the first end 3 of the notch 2 can be produced.

[0039] The invention is not limited to one of the embodiments described above, but can be modified in many ways.

[0040] All features and advantages arising from the claims, the description and the drawing, including design details, spatial arrangements and process steps, can be essential to the invention both individually and in various combinations. Reference symbol list

[0041] 1. Wooden component 2. Notch 3. First end 4. Deep section 5. Rising section 6. Second end 7. Side 8. Center axis 9. Finger cutter 10. Rabbet cutter

Claims

1. Timber component (1) designed to form part of a timber-concrete composite component, with a notch (2), • having a first end (3) designed to transmit shear forces and extending at a first angle to the surface of the timber component (1) having the notch (2), • and having a second end (6) opposite the first end (3), • and having a low-profile area (4) between the first end (3) and the second end (6) adjacent to the first end (3) and having a high-profile area (5) adjacent to the second end (6), • and having a non-undercutting design,that the notch (2) in use is free from a positive locking with the concrete component of the timber-concrete composite element that counteracts separating forces in a direction perpendicular to the surface of the timber component (1) having the notch (2) and that tends to separate the timber component (1) from the concrete component, and is narrower than the timber component, such that the notch (2) is bounded on both sides (7), in each case between its first end (3) and its second end (6), by the material of the timber component (1), characterized by that the rising area (5) is designed as a convex circular arc recess.

2. Wooden component according to claim 1, characterized by that the curve of the recess runs in the direction from the first end (3) to the second end (6) of the notch (2).

3. Wooden component according to claim 2, characterized by that the notch (2) has a constant width from the first end (3) to the second end (6).

4. Wooden component according to one of the preceding claims, characterized by that the wooden component (1) is designed as a beam and has several lamellae arranged one above the other, with the notch (2) being arranged exclusively in the uppermost lamella.

5. Wooden component according to one of the preceding claims, characterized by that the rising area (5) at the second end (6) rises to the surface of the wooden component (1).

6. Method for producing a timber component (1) designed to form part of a timber-concrete composite component, wherein a timber component (1) is first provided, and then a recess is milled into a surface of the timber component (1) to create a notch (2), • wherein a first end (3) of the notch (2) is created, which is designed to absorb shear forces and extends at a first angle to the surface of the timber component (1) having the recess, • and wherein a second end (6) of the notch (2) is created, which is opposite the first end (3) and extends at a second angle to the surface of the timber component (1) having the recess, which is shallower than the first angle, • and wherein a bottom of the notch (2) is created between the first end (3) and the second end (6).which borders a low-lying area (4) of the notch (2) adjacent to the first end (3) and borders a rising area (5) adjacent to the second end (6) and rises towards the second end (6), , characterized by that in a milling operation with a first milling tool the first end (3) and at least a part of the depth area (4) of the notch (2) is created, and that In another milling operation, the second end (6) and the rising area (5) of the notch (2) are created with a second milling tool.

7. Method according to claim 6, characterized by that First, a part of the depth area (4) of the notch (2) is created with a first milling tool, and then a part of the depth area (4) of the notch (2) is also created with the second milling tool by moving the second milling tool in the longitudinal direction of the notch (2).

8. Method according to claim 6 or 7, characterized by thatThe two milling operations are carried out with the same milling machine, and the milling tool is changed between the first and the subsequent milling operation.

9. Method according to any one of claims 6 to 8, characterized by that First, several milling operations are carried out with the same tool, and then several milling operations are carried out with the other tool, such that several notches (2) are created in the wooden component (1).

10. Method according to any one of claims 6 to 9, characterized by that the first end (3) and at least one section of the deep area (4) are produced by means of a milling tool referred to as a finger cutter (9), which is cylindrical in design and whose axial length is greater than its diameter.

11. Method according to claim 10, characterized by thatThe finger cutter (9) is aligned during the milling process so that its central axis (8) runs perpendicular to the surface of the wooden component (1).

12. Method according to any one of claims 6 to 10, characterized by that the second end (6) and the rising area (5) are produced by means of a milling tool called a rebate cutter (10), which is cylindrical in shape and whose axial length is less than its diameter.

13. Method according to claim 12, characterized by that the rebate cutter (10) is aligned during the milling process so that its central axis (8) runs parallel to the surface of the wooden component (1).

14. Method according to claim 13, characterized by that the rebate cutter (10) has an axial length that corresponds to the width of the notch (2) to be produced.

Images