COMPONENT

DE502019012668D1Inactive Publication Date: 2025-01-02AUDI AG
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Patent Information

Application Number
DE502019012668
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Priority Date
2018-07-25
Filing Date
2019-07-23
Publication Date
2025-01-02
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing fastening systems, particularly in highly loaded screw connections, face challenges in efficiently absorbing and dissipating mechanical loads due to constant and variable loading directions, leading to material accumulation and stress peaks, which are not optimally addressed by conventional reinforcing ribs.

Method used

A component with a conical, funnel-shaped, or tent-shaped support cover that replaces traditional reinforcing ribs, providing a recess for fastening elements like screws, allowing for varied geometry to absorb forces from different directions and reduce material accumulation, while being designed for weight reduction and improved castability.

Benefits of technology

The component effectively absorbs and dissipates mechanical stresses, reduces material accumulation, achieves a 15% weight savings, and enhances acoustic properties by allowing for more flexible design and manufacturing processes using CAD software.

✦ Generated by Eureka AI based on patent content.
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Description

[0001] The invention relates to a component with a recess for receiving a fastening element to be fastened to the component.

[0002] A screw connection can be arranged on a component, wherein a receptacle for a screw on the component is reinforced by reinforcing ribs which absorb and dissipate mechanical loads, particularly in the case of a highly loaded screw connection.

[0003] The document DE 41 38 372 A1 describes a casting for a vehicle body, wherein two master points arranged at a distance from one another are provided on a casting wall as molded elevations and / or molded depressions.

[0004] A device for attaching a handle to a cooking or frying vessel is known from the document DE 199 40 970 A1.

[0005] An internal combustion engine with at least two cylinders is known from EP 2 143 925 A1. Slugs for passing screws are arranged on a turbine of the internal combustion engine.

[0006] A fastening device for fastening a component is known from DE 10 2016 220 587 A1. This fastening device comprises a receiving area with an opening for receiving a fastening means and a support area, which is particularly conical or pyramid-shaped. Furthermore, the fastening device comprises a receiving area formed from a cast material, for example, by injection molding plastic or a cast metal material.

[0007] A fastening nut is described in US Pat. No. 7,946,794 B2. It comprises a hexagonal body and a circular base. A hole is drilled into the hexagonal body. Furthermore, one wall of this fastening nut is made of plastic.

[0008] A threaded plate with stiffening ribs is described in the document DE 10 2009 032 945 A1. This consists of a base plate with a molded bushing to form a threaded passage, with four radially symmetrical outwardly extending stiffening ribs molded onto the base plate and the bushing. The threaded plate is manufactured using a cold-pressing process.

[0009] Another component designed as a spacer is known from US 4905569A.

[0010] Against this background, one task was to provide a stable holder for a fastening element on a component.

[0011] This object is achieved by a component having the features of independent patent claim 1. Embodiments of the component emerge from the dependent patent claims.

[0012] The component according to the invention comprises a support for which a flat region or a plane is defined, which is part of the support, wherein the support has, in addition to this flat region, an at least partially or partially conical, funnel-shaped and / or tent-shaped support shell that rises from the flat region of the support. At one end of the at least partially conical, funnel-shaped and / or tent-shaped support shell, which is spaced from and / or facing away from the flat region of the support, a recess for receiving a fastening element to be or can be fastened to the component is arranged.

[0013] In one possible embodiment, the component presented is designed as part of a component arrangement and / or as a blank and / or semi-finished product of a component arrangement or a workpiece. In this case, it is possible for a workpiece according to the invention or a component arrangement according to the invention to have at least one component according to the invention and thus a carrier with the supporting shell, in particular one that is shaped like a cone, in particular a funnel, or tent. It is also possible for the component itself to be designed as a component arrangement. Furthermore, it is also possible for the supporting shell to be designed as an elevation that extends from the flat region to the end with the recess and, in particular, encloses a volume that is not necessarily symmetrical.

[0014] The at least partially conical support shell can alternatively or additionally also be designed and / or designated as an at least partially funnel-shaped and / or tent-shaped support shell that rises from the flat region or the plane of the component's support. It is possible for a base area for defining the at least partially conical, funnel-shaped, and / or tent-shaped support shell to lie in the flat region of the component's support from which the support shell rises, wherein the base area can be elliptical and thus also circular in design. According to the invention, the support shell has the shape of an oblique conical shell.

[0015] An axis along which the at least partially conical, funnel-shaped and / or tent-shaped support shell extends from the flat area of ​​the support is oriented to the flat area at any angle and thus, for example, also at 90°.

[0016] The fact that the support shell is at least partially conical, funnel, and / or tent-shaped means that at least one part of the support shell also has the shape of a conical, funnel, and / or tent, with another part of the support shell having a different shape, e.g., a flat surface or a curved surface, with the support shell being at least partially conical, funnel, and / or tent-shaped and another part having a different shape. It is also possible for the support shell to be entirely conical, funnel, and / or tent-shaped.

[0017] In this case, it is possible for the at least partially conical, funnel-shaped and / or tent-shaped supporting shell to surround, enclose or envelop an at least partially conical, funnel-shaped and / or tent-shaped area or space, ie an at least partially conical volume.

[0018] In one embodiment, the component comprises a slug with a body that is arranged at the end of the at least partially conical, funnel-shaped and / or tent-shaped supporting shell and forms a wall for the recess, wherein the fastening element can be arranged or is to be arranged in the recess and thus also in the slug, wherein an opening of the recess is arranged at the end of the at least partially conical, funnel-shaped and / or tent-shaped supporting shell. It is possible for the end of the supporting shell to also correspond to one end of the slug, which are connected to one another at this common end. The recess in the body of the slug can have a cylindrical inner wall and an internal thread for the fastening element. A further component can be fastened to the described component, which has the supporting shell, via such a fastening element.

[0019] Furthermore, it is possible that the at least partially conical, funnel-shaped and / or tent-shaped supporting shell at least partially surrounds, encloses or envelops the body of the slug.

[0020] Typically, the recess is designed to attach a fastening element in the form of a screw to the component.

[0021] According to the invention, the component is designed as a forged part.

[0022] The component can be designed and / or provided as part of a motor vehicle, wherein the component can be used as part of the motor vehicle.

[0023] In a possible embodiment, the at least partially conical, funnel-shaped and / or tent-shaped support shell, at the end of which the recess for receiving the fastening element is arranged, provides an at least partially conical, funnel-shaped and / or tent-shaped screw slug for a highly resilient screw connection on the forged component in the event that the fastening element is designed as a screw, for example.

[0024] The at least partially conical, funnel-shaped, and / or tent-shaped supporting sleeve, which also includes the stud, e.g., screw stud, can replace otherwise conventional reinforcing ribs for a screw connection. Conventional design guidelines typically stipulated that reinforcing ribs should each be aligned in a specific load direction. By appropriately shaping the at least partially conical, funnel-shaped, and / or tent-shaped supporting sleeve, it is also possible to take load directions of the fastening element into account. Previously, the number, height, and thickness of the reinforcement directions were adjusted depending on the load on a screw stud. Accordingly, the height of the supporting sleeve, for example, can now be varied starting from the flat area, and / or the thickness or wall thickness of the supporting sleeve can also be varied depending on the load.

[0025] The new design of a screw stud as a component of the at least partially conical, funnel-shaped and / or tent-shaped supporting shell, which is designed to stabilize the screw stud, results in the fastening element, for example designed as a screw, being able to withstand greater mechanical loads on the component or component arrangement. The at least partially conical, funnel-shaped and / or tent-shaped design of the supporting shell enables forces acting on the fastening element attached to the component from different loading directions to be better absorbed and dissipated. This makes it possible to eliminate mechanical stress peaks. It is also possible to improve the acoustic properties of the component. By replacing the otherwise usual reinforcing ribs with the supporting shell, material accumulations can be reduced and, for example, the castability of the component can be improved.Due to the geometry and / or design of the support sleeve for stabilizing the screw stud, a weight saving or reduction of approximately 15% can be achieved. It is also possible to conveniently model the component with the support sleeve and the stud with the recess for accommodating the fastener using a CAD program, allowing greater freedom in constructing a model for the component. New CAD software capabilities, for example, regarding freeform surfaces, can also be utilized, which can also save time.

[0026] In particular for the component designed as a forged component, the at least partially conical, funnel-shaped and / or tent-shaped design of the support shell is advantageous for stabilizing the slug.

[0027] It is understood that the features mentioned above and those to be explained below can be used not only in the respective combination specified, but also in other combinations or in isolation, without departing from the scope of the present invention, as long as the combination of features falls within the wording of the claims.

[0028] The invention is illustrated schematically in the drawings using embodiments and is described schematically and in detail with reference to the drawings. Figure 1 shows a schematic representation of an example of a component as it is known from the prior art. Figure 2 shows a schematic representation of a first embodiment of the component according to the invention. Figure 3 shows a schematic representation of a second embodiment of the component according to the invention.

[0029] The figures are described coherently and comprehensively, and the same reference numbers are assigned to the same components.

[0030] The Figure 1a The schematically illustrated component 200 has a first slug 202 and two further slugs 204, 206, each of which

[0031] Butts 202, 204, 206 are provided for receiving a screw. Figure 1b shows a part of the component 200 along a section through the first slug 202.

[0032] Like both Figures 1a and 1b show, the first slug 202 is supported by several ribs 208, 210, 212, 214, 216, 218 on a wall of the component 200, with the slug 202 rising from the wall. Here, the ribs 208, 210, 212, 214, 216, 218 are arranged in a star shape around the slug 202. Furthermore, in Figure 1a An ellipse 220 indicates a stress peak for the slug 202 and an arrow 222 indicates a mechanical load on the slug 202. In Figure 1b In addition, material accumulations 224 are indicated, which result for the slug 202 due to the ribs 208, 210, 212, 214, 216, 218.

[0033] In the prior art, very thick ribs 208, 210, 212, 214, 216, 218 are often required due to high mechanical loads. However, if a mechanical load direction is not constant, it is mandatory to arrange ribs 208, 210, 212, 214, 216, 218 in multiple load directions. Particularly when component 200 is used in a vehicle, it must be taken into account that load directions are rarely constant, which is why ribs 208, 210, 212, 214, 216, 218 cannot always be optimally utilized. The first slug 202 or screw slug is connected to component 200 by ribs 208, 210, 212, 214, 216, 218. However, despite the numerous ribs 208, 210, 212, 214, 216, 218 used, unacceptably high stress peaks can occur at the beginning of each rib 208, 210, 212, 214, 216, 218. Furthermore, the star-shaped arrangement of the ribs 208, 210, 212, 214, 216, 218, for example,component 200 designed as a cast component can cause unfavorable material accumulations 224.

[0034] The first embodiment of the component 2 according to the invention or of a corresponding workpiece or semi-finished product according to the invention is shown in the Figure 2a, 2b and 2c shown schematically from different perspectives. Component 2 comprises a support 4, which here is formed as part of a circular ring with an inner and an outer diameter. This support 4 is connected to a pipe section 6 of component 2. A threshold 8 is also arranged on a surface of support 4.

[0035] Furthermore, a flat area or a plane is defined, which is located in the carrier 4, in particular between an upper side of the carrier 4, which in Figure 2a and 2c can be seen, and an underside of the carrier 4, which is Figure 2bcan be seen, is located or lies therein. Starting from the flat area in the carrier 4 and thus a wall of the component 2 or a corresponding workpiece, a conical, funnel-shaped and / or tent-shaped support sleeve 10 of the carrier 4 rises here, wherein at one end of the support sleeve 10, which faces away from the carrier 4 or from the flat area, a recess 12 for receiving a fastening element is arranged.

[0036] The carrying case is 10 in Figure 2a from above and in Figure 2b shown from below. In Figure 2a is an exterior wall and in Figure 2b an inner wall of the supporting shell 10 can be seen. In particular, Figure 2b that a body of a slug 14 forms a wall of the recess 12. For this purpose, reference is also made to Figure 2c which shows the component 2 along a section through the support shell 10, the recess 12 and the slug 14.

[0037] Depending on the definition, the support sleeve 10, which at least partially surrounds and / or encloses the slug 14, is an elevation of the support 4 and thus a part or extension of the support 4, which rises from or protrudes from the flat area in the support 4. The support sleeve 10 is here at least partially, in particular largely, cone-shaped or funnel-shaped and / or tent-shaped and is delimited on the one hand by the surface of the support 4 and on the other hand by the pipe section 6. The support sleeve 10 replaces the ribs 208, 210, 212, 214, 216, 218 required in the prior art for stabilizing the slug 14 with the recess 12 for receiving the fastening element.

[0038] How Figure 2b shows, surrounds or encloses the inner wall of the support shell 10, which is Figure 2ashown outer wall of the support sleeve 10, a body of the slug 14, so that the slug 14 is arranged within the support sleeve 10. The end of the support sleeve 10 which faces away from the carrier 4 or from the flat region, and one end of the slug 14, which forms a wall for the recess 12, are connected to one another, wherein, depending on the definition, it is possible for the support sleeve 10 and the slug 14 or the body of the slug 14 to form or have a common end. Starting from the common end or the common ends, the inside of the support sleeve 10 and the slug 14 or its body are separated and / or spaced from one another in the direction of the flat region of the carrier 4.

[0039] Figure 2b also shows that in a possible embodiment of the component 2, the body of the slug 14 is connected to the inner wall of the support shell 10 via additional inner ribs 16. In addition, the Figure 2a, 2b , 2cRegardless of the design of the component 2 according to the invention, two further holes 18 are provided in the carrier 4 of the component 2.

[0040] The second embodiment of the component 30 according to the invention or of a corresponding workpiece according to the invention is shown in Figure 3 shown in a sectional view. This component 30 comprises a planar, here flat body or support 32, which is simultaneously defined and / or provided as part of a wall of the component 30. A plane or a planar region 34 is defined here, which lies in the support 32, is arranged therein, or is located therein.

[0041] Rising from the flat region 34 of the support 32 is a conical, funnel-shaped, and / or tent-shaped support sleeve 36, which is designed as an extension or elevation of the support 32 and thus as part of the support 32. Apart from structural and / or geometric deviations, the support 32 and the support sleeve 36 have approximately the same wall thickness. A common end 38 of the conical, funnel-shaped, and / or tent-shaped support sleeve 36 and of a slug 42 faces away from the support 32 and the flat region 34 and encloses an opening of a rotationally symmetrical recess 40, which is designed to receive a rotationally symmetrical fastening element, e.g., a screw. The support sleeve 36 extends from the flat region 34 and / or the support 32 of the component 30 toward the end 38.Depending on the definition, the slug 42 is an extension of the support shell 36, since the slug 42 and the support shell 36 are connected to one another at the end 38. The recess 40 is enclosed by a body of the slug 42, which forms a wall of the recess 40. An inner side of the support shell 36 surrounds and / or encloses a conical region or a conical volume in which the slug 42 is arranged, wherein an inner side of the support shell 36 and the slug 42 are spaced from one another in the conical region. In one embodiment, the carrier 32, the support shell 36, and the slug 38 are formed as a one-piece, coherent component 30 or workpiece, which is produced by a casting process (not claimed) or from a forging, as claimed. A further component, not shown here, can be attached to the component 30 via the fastening element that can be attached to the component 30. Reference symbol

[0042] 2Component 4Beam 6Pipe section 8Rail 10Supporting shell 12Recess 14Slug 16Ribs 18Hole 30Component 32Beam 34Flat area 36Supporting shell 38End 40Recess 42Slug 200Component 202, 204, 206Slug 208, 210, 212Rib 214, 216, 218Rib 220Ellipse 222Arrow

Claims

1. Component with a support (4, 32) for which a flat region (34) is defined, wherein the support (4, 32) has a support cover (10, 36) which at least partly has the shape of a hollow cone, a funnel, or a tent and which is raised out of the flat region (34), wherein one end (38) of the at least partly hollow cone-shaped, funnel-shaped, or tent-shaped support cover (10, 36), said end facing away from the flat region (34) of the support (4, 32), is equipped with a recess (12, 40) for receiving a securing element to be secured to the component (2, 30), characterized in that the component (2, 30) is formed as a forged component, wherein the support cover (10, 36) has the shape of an inclined hollow cone, wherein an axis along which the at least partly hollow cone-shaped, funnel-shaped, or tent-shaped support cover (10, 36) extends from the flat region (34) of the support (4, 32) is oriented at any angle, in particular at 90°, to the flat region (43).

2. Component according to claim 1, wherein the at least partly hollow cone-shaped, funnel-shaped, or tent-shaped support cover (10, 36) encloses an at least partly hollow cone-shaped, funnel-shaped, or tent-shaped region.

3. Component according to claim 1 or 2, which has a slug (14, 42) which is arranged on the end (38) of the at least partly hollow cone-shaped, funnel-shaped, or tent-shaped support cover (10, 36) and forms a wall for the recess (12, 40), wherein the securing element is to be arranged in the recess (12, 40), wherein an opening of the recess (12, 40) is arranged on the end (38) of the at least partly hollow cone-shaped, funnel-shaped, or tent-shaped support cover (10, 36).

4. Component according to claim 3, wherein the at least partly hollow cone-shaped, funnel-shaped, or tent-shaped support cover (10, 36) encloses the slug (14, 42) at least partly.

5. Component according to any one of the preceding claims, wherein the recess (12, 40) is designed for securing a securing element designed as a screw.

6. Component according to any one of the preceding claims, which is formed as a part of a motor vehicle.