Wheel decoupler with mounting plate attached to wheel hub component having shock absorber

Abstract

The invention relates to a belt wheel decoupler (1) for a drive train of a motor vehicle, having a hub component (2) which is configured for attachment to a crankshaft of an internal combustion engine, a flexible drive element wheel (3) which is supported in a spring-damped manner relative to the hub component (2), and a damper (4), wherein the damper (4) comprises a mounting plate (5) which extends radially outward from a fastening region (6) which is supported on the hub component (2) and is connected to the hub component (2) in a form-locking and / or non-form-locking manner, and which receives at least one mass element (7) in a collar region (8), and wherein the fastening region (6) has a plate portion (19) which is supported axially on a flange element (13) of the hub component (2) and is held relative to the hub component (2) via an axially extending dome portion (20) formed by the mounting plate (5) or the flange element (13).

Description

Technical Field

[0001] The present invention relates to a pulley decoupling device for a motor vehicle drivetrain, comprising a hub assembly designed for (preferably directly) attachment to a crankshaft of an internal combustion engine, a traction wheel supported relative to the hub assembly in a spring-damped manner, and a shock absorber, wherein the shock absorber includes a mounting plate extending radially outward from a fastening region to a collar region receiving at least one mass element and attached to the hub assembly, the fastening region being supported ( / preferably directly adjacent to) the hub assembly and connected to the hub assembly in a form-fitting locking and / or force-fit manner. Background Technology

[0002] Figure 8 and Figure 9 A general-purpose pulley decoupler 1', as known to the applicant according to the prior art, is shown. It is clear from these figures that, previously, when assembling the pulley decoupler 1' on an internal combustion engine, a separately manufactured reverse retainer G remained available. A reverse retainer tool was used via this reverse retainer to set the rotational alignment of the damper 4' relative to the hub assembly 2' of the pulley decoupler 1'. For this purpose, the reverse retainer G was attached to the mounting plate 5' by means of a rivet connector N. However, it has been shown that this connection of the separate reverse retainer negatively impacts the maximum torque that can be transmitted. Summary of the Invention

[0003] Therefore, the object of the present invention is to provide a pulley decoupler with a robust design to transmit higher torque.

[0004] According to the invention, this objective is achieved by having a plate portion that is axially (preferably directly, or alternatively indirectly) supported on a flange element of a hub assembly and held relative to the hub assembly via an axially extending dome portion formed by a mounting plate or flange element.

[0005] This provides a connection between the mounting plate and the wheel hub components that can be formed as simply as possible, and is independent of the choice of reverse retainers, and is therefore implemented as robustly as possible.

[0006] Other advantageous embodiments are claimed by the dependent claims and are explained in more detail below.

[0007] Therefore, it is also advantageous if the dome portion, which is part of the mounting plate, protrudes axially from the plate portion and is supported radially from the inside on the flange element. Furthermore, the flange element can be designed to be as simple as possible.

[0008] However, as an alternative, it is also advantageous if the dome portion projects axially as part of a flange element and is supported radially from the inside on the plate portion. As a result, the dome portion can be made as stable as possible.

[0009] In this context, it has also proven advantageous if the dome portion is fastened to the flange element or mounting plate by means of an interference fit / pressure connection. This interference fit is specifically understood to imply a connection that ensures the mounting plate resists external forces acting during the transport of the assembled pulley decoupler and prior to final assembly on the crankshaft, and ensures that the mounting plate remains connected to the hub assembly / flange element. During the final assembly of the pulley decoupler on the crankshaft, the central screw then preferably serves to fasten the hub assembly and mounting plate to the crankshaft.

[0010] It is also advantageous if the dome portion has surface structures such as ribs, knurling, or teeth on its supporting surface in contact with the flange element or mounting plate and / or on its opposing supporting surface in contact with the dome portion.

[0011] Furthermore, for simpler components, it is advantageous if the fastening area has an undercut on the side facing the flange element in the transition between the plate portion and the dome portion. This allows for the creation of gaps for debris.

[0012] As an alternative, it is also advantageous if the flange element has a chamfer, rounding, or protrusion on its radially inner side and on its axial side facing the plate. This significantly simplifies the insertion of the dome portion into the hub assembly.

[0013] It is also advantageous if the mounting plate forms a planar support area on the radially outer side of the fastening area and the radially inner side of at least one spring element, the support area supporting the hub assembly relative to the traction wheel and axially spaced from the hub assembly and having at least one fixing orifice. Therefore, the support area is configured to receive a reverse retaining tool that is integrally formed / formed as a one-piece material with the mounting plate. This avoids the need for a separate reverse retainer.

[0014] It is also advantageous for the hub assembly to have a body supporting the traction wheel, in addition to a flange element directly supported on at least one spring element and in contact with the mounting plate, wherein the body and the flange element are connected to each other by means of rivet fasteners. This results in simple assembly of the hub assembly.

[0015] In this respect, it is also advantageous that the body and flange element form a receiving space that radially receives the intermediate piece within the multiple rivet bolts that enable the riveted connection, and the flange element has a support web that is axially folded and supported on the end face of the intermediate piece. This also allows the intermediate piece to be shorter in the axial direction, saving weight or allowing for individual adjustment of the mass of the hub components. In this context, it should also be noted that the intermediate piece can even be omitted in principle, and the support web is preferably designed to be so wide that it rests axially on the disc-shaped area of ​​the body that can be directly connected to the crankshaft. In this way, manufacturing is further simplified.

[0016] If the wheel hub assembly has a through-hole that radially penetrates the wheel hub assembly completely at the height of the support area of ​​the mounting plate, the assembly of the shock absorber on the wheel hub assembly is further simplified. This allows the mounting plate and the wheel hub assembly to be directly fixed relative to each other in the direction of rotation.

[0017] Furthermore, it is advantageous if the through-hole and at least one fixing hole are arranged at the same radial height. Then, the hub assembly / flange element and mounting plate can be directly secured to each other using a single mounting pin. In this respect, it is also advantageous to design the fixing hole and the through-hole to have at least partially the same diameter. According to other embodiments, the through-hole can also be designed to have different diameters, preferably smaller than the diameter of the fixing hole. If the through-hole is implemented in a stepped manner, a stop for the mounting pin is simply achieved.

[0018] If the protrusion on the mounting plate is received in the recess of the flange element, preferably pressed into the recess, the connection between the mounting plate and the flange element is further strengthened.

[0019] In other words, according to the present invention, a special connection between the torsional damper (damper) and the pulley decoupler is achieved without riveting. Therefore, the previous riveting on the components of the torsional damper is no longer required, and the previously separate reverse retainer is integrated into the main plate (mounting plate) of the torsional damper. The main plate is shaped such that the contact surface (support area) axially forms a reverse retainer for the customer and is provided with the required mounting holes. The inner diameter of the mounting plate is formed as a dome (dome portion) and forms an interference fit with the inner diameter of the arcuate spring flange (flange element of the hub component). This interference fit governs the positioning of the torsional damper in the pulley decoupler until the customer mounts the pulley decoupler onto the crankshaft using a central screw. Attached Figure Description

[0020] The invention will now be explained in more detail with reference to the accompanying drawings, in which various exemplary embodiments are also described.

[0021] In the attached diagram:

[0022] Figure 1 A longitudinal cross-sectional view of a pulley decoupler according to the invention based on a first exemplary embodiment is shown, wherein the overall structure of the pulley decoupler can be clearly seen.

[0023] Figure 2 It shows that according to Figure 1 The longitudinal section of the detailed area of ​​the pulley decoupler clearly shows the fixing holes in the support area into which it has been inserted into the mounting plate.

[0024] Figure 3 A longitudinal cross-sectional view of a detailed region of the pulley decoupling device according to the invention, based on a second exemplary embodiment, is shown, wherein the connection region between the dome portion of the mounting plate and the flange element of the hub assembly is clearly visible.

[0025] Figure 4 A longitudinal cross-sectional view of a detailed region of the pulley decoupling device according to the invention, based on a third exemplary embodiment, is shown, in which, instead of Figure 3 The undercut portion on the side of the mounting plate, implemented in the middle, realizes the protrusion located on the flange element.

[0026] Figure 5 A longitudinal cross-sectional view of a detailed region of the pulley decoupling device according to the invention, based on a fourth exemplary embodiment, is shown. The flange element now has an axially projecting support web that is supported on the intermediate member.

[0027] Figure 6 A longitudinal cross-sectional view of the pulley decoupling device according to the invention according to a fifth exemplary embodiment is shown. A through hole aligned with the fixing orifice can also be seen in the hub assembly.

[0028] Figure 7 A longitudinal cross-sectional view of a pulley decoupler according to the invention, based on a sixth exemplary embodiment, is shown. The overall structure of the pulley decoupler is clearly visible, and the dome portion is now implemented as a component of the flange element.

[0029] Figure 8 A longitudinal cross-sectional view of a pulley decoupler known according to the prior art is shown, and

[0030] Figure 9 yes Figure 8 A three-dimensional view of the overall structure of the existing pulley decoupling device. Detailed Implementation

[0031] The accompanying drawings are merely illustrative in nature and are therefore intended only for understanding the purpose of the invention. The same elements are provided with the same reference numerals.

[0032] Figure 1 A pulley decoupling device 1 according to the invention, designed according to a first exemplary embodiment, is shown, its overall structure clearly illustrated. The pulley decoupling device 1 typically includes a traction wheel 3, which is rotatably connected to an annular traction device, i.e., a belt, during use. The traction wheel 3 is supported / mounted on the body 12 of the hub assembly 2 in a manner capable of relative rotation. For this purpose, the body 12 has a bearing 35 located on an axial protrusion 34, which supports the traction wheel 3 radially inward.

[0033] For completeness, it should be noted that the directional information used herein relates to the axial, radial, and circumferential directions of the rotation axis 45 of the pulley decoupler 1. Therefore, axial / axial direction should be understood as the direction along / parallel to the rotation axis 45; radial / radial direction should be understood as the direction perpendicular to the rotation axis 45; and circumferential direction should be understood as the direction along an imaginary circular line extending coaxially around the rotation axis 45.

[0034] Furthermore, the hub assembly 2 has a flange element 13, which is securely connected to the body 12 via a rivet connector 14. Figure 1 In the cross-section, a rivet connector 14 with shaped rivet bolts 15 can be seen. A plurality of these rivet bolts 15, used to realize the rivet connector 14, are distributed in the circumferential direction.

[0035] The flange element 13 is elastically supported relative to the traction wheel 3 by means of a plurality of spring elements 9 distributed circumferentially toward the radially outer side of the protrusion 34. The spring elements 9 allow the traction wheel 3 to elastically twist within a certain range of torsional angles relative to the hub assembly 2. The first peripheral end of the corresponding spring element 9 is in direct contact with the flange element 13; the second peripheral end of the corresponding spring element 9 is in direct contact with the traction wheel 3. These spring elements 9 are implemented as compression springs, more preferably as arc springs or straight compression springs.

[0036] In addition, from Figure 1 As can be seen, a disc spring 37 is also fixed by rivet bolts 15 / rivet connectors 14, which axially preloads the friction ring 36 against the traction wheel 3. For this purpose, a separate retaining ring 38 is provided, which holds / clamps the disc spring 37 between the retaining ring and the flange element 13 in the area of ​​the rivet connector 14. The friction ring 36, received on the hub assembly 2 and pressed into frictional contact against the traction wheel 3 by the leaf spring 37, results in spring-damped support of the traction wheel 3 relative to the hub assembly 2.

[0037] Furthermore, a torsional damper 4 is arranged on the wheel hub assembly 2. In this embodiment, the damper 4 is designed as a so-called elastomeric damper; however, in other versions, the damper can also be implemented in other ways. The damper 4 always has a mounting plate 5 attached to the wheel hub assembly 2, that is, attached thereto to the flange element 13.

[0038] For fastening to the flange element 13, the mounting plate 5 has a fastening region 6 facing radially inward. The fastening region 6 also has a plate portion 19 extending only radially, positioned to directly contact the axial side of the flange element 13 in a planar axial manner. The fastening region 6 also has a dome portion 20 that abuts the radially inward portion of the plate portion 19 and projects axially away from the plate portion 19. Thus, the dome portion 20 forms an axial protrusion of the mounting plate 5 and connects to the flange element 13.

[0039] In this respect, it should be noted that the dome portion 20, as implemented in this embodiment, is fixed to the radially inner portion 27 of the flange element 13 of the hub assembly 2 by means of an interference fit portion 21. In this respect, it should be noted that this results in a force-fit connection between the mounting plate 5 and the flange element 13.

[0040] like Figure 2 As further indicated, in this embodiment, surface structure 24 is formed on a portion of the support surface 22 of the dome portion 20 and on the reverse support surface 23 of the flange element 13 that is in direct contact with the support surface 22. This surface structure 24 is designed, for example, as knurled teeth / knurled or corrugated portions. Therefore, it is preferable to implement teeth on each component of the interference fit portion 21, i.e., on the support surface 22 and the reverse support surface 23, via which the mounting plate 5 is also held relative to the flange element 13. While a force-fit connection is achieved, a form-fit connection between the mounting plate 5 and the flange element 13 is also achieved according to the connection force in the interference fit portion 21.

[0041] Mounting plate 5 extends radially outward from fastening region 6 / plate portion 19 toward collar region 8, which receives the mass element 7. Collar region 8 also forms the radially outer portion of the entire mounting plate 5, thus serving to receive the mass element 7 that transfers the mass of the damper. Mass element 7 is secured to mounting plate 5 / collar region 8 via elastomer layer 39. Therefore, damper 4 is classified as an elastomer damper.

[0042] A (plate-like) support region 10, extending only in the radial direction, is provided radially outside the fastening region 6 and radially inside the collar region 8, and is axially spaced from the hub assembly 2. This support region 10 is located approximately axially at the center of the mass element 7. Therefore, the support region 10 is centrally arranged between the opposing end faces 44a and 44b of the mass element 7. The support region 10 is also radially arranged within the spring element 9.

[0043] For example, as in Figure 2 As can be seen, the support area 10 has at least one fixing hole 11, and preferably a plurality of fixing holes distributed in the circumferential direction. When the pulley decoupler 1 is mounted on the crankshaft, the mounting plate 5 can be supported relative to the hub component 2 in the desired rotational position through the corresponding fixing holes 11.

[0044] Back Figure 1 At this point, it can also be seen that an additional positioning opening 40 is formed on the main body 12, into which a reverse retaining tool can engage during assembly on the crankshaft side. The hub assembly 2 is supported relative to the mounting plate 5 by means of this positioning opening 40 and the corresponding fixing hole 11.

[0045] Figure 2 It is also shown that the flange element 13 is provided with a recess 41, which interacts with a convex, protruding protrusion 42 on the mounting plate 5 in order to pre-align the hub assembly 2 and the mounting plate 5 in the desired relative rotational position.

[0046] According to the invention, torque during operation is transmitted in each engagement from the central screw 47 to the disc-shaped region 33 without additional friction-increasing measures, the disc-shaped region preferably having end face teeth on its axial side away from the damper 4. This is achieved by transmitting torque via the mounting plate 5 and the dome portion 20 (also referred to as the collar) to the flange element 13 and the body 12. Furthermore, the torque flow is distributed in a force-fit manner (the clamping force of the central screw 47 and the interference fit 21), and more preferably in a form-fit manner (via the rivet protrusion 42 and the rivet connector 14 of the flange element 13 and the body 12).

[0047] Then, Figures 3 to 7 Other preferred exemplary embodiments of the pulley decoupling device 1 according to the present invention are shown, wherein, Figures 3 to 7 The structure of the pulley decoupling device 1 in the corresponding exemplary embodiment corresponds to... Figure 1 The structure of these implementations is described below. Therefore, for the sake of brevity, only the differences between these implementations and the first exemplary implementation are described below.

[0048] For according to Figure 3In a second exemplary embodiment, an undercut portion 26 is also provided on the axial side 28 of the mounting plate 5 facing the flange element 13, and in the transition portion 25 from the plate portion 19 to the dome portion 20. This further simplifies the installation.

[0049] In place of the undercut portion 26 or in addition to the undercut portion 26, Figure 4 In the third exemplary embodiment, a protrusion 31 is provided. The protrusion 31 is implemented in the flange element 13 rather than in the mounting plate 5, that is, on the radially inner side of the flange element 13 (at the radial height of the transition portion 25).

[0050] Back Figure 2 As can be seen from the first exemplary embodiment, instead of the substantially rectangular protrusion 31, a chamfer 29 may also exist in the flange element 13.

[0051] In addition, Figure 5 As can be seen from the fourth exemplary embodiment, instead of according to Figure 2 The chamfer is 29, and you can also set the rounding to 30.

[0052] Figure 5 The fourth exemplary embodiment also shows that the intermediate piece 16, axially received between the body 12 and the flange element 13, can be sized as small as desired. Preferably designed as a continuous annular ring, the intermediate piece 16 is positioned in a receiving space 17 that opens radially inward between the body 12 and the flange element 13. This receiving space 17 is defined on a first axial side by the flange element 13, on a second axial side opposite to the first axial side by a disc-shaped region 33 on the body 12, and on a radially outer side by a wall region 43 extending axially between the disc-shaped region 33 of the flange element 13 and the body 12.

[0053] Despite Figure 1 In or Figures 2 to 4 In the middle, the intermediate member 16 is supported only on the radial flange element 13, but according to Figure 5 In this embodiment, the flange element 13 forms an axially projecting support web 18, which is supported on the end face of the intermediate member 16. In this embodiment, the support web 18 is also a component of the interference fit portion 21 and is therefore designed to fix / receive the mounting plate 5.

[0054] In this context, it should be noted in principle that in other embodiments, the support web 18 can even be designed such that when the intermediate member 16 is omitted, the support web is in direct contact with the disc-shaped region 33.

[0055] Then, combine Figure 6 Another fifth exemplary embodiment is illustrated, which shows that, instead of according to Figure 1The hub assembly 2 has a positioning opening 40 facing the radially outward side of the main body 12, and a through hole 32 is also provided at the radial height of the corresponding fixing hole 11. In this embodiment, the through hole 32 completely penetrates the hub assembly 2, that is, it penetrates the main body 12 and the flange element 13. If a corresponding retaining ring 38 and leaf spring 37 are provided, the through hole 32 also axially penetrates these two elements.

[0056] from Figure 6 It can also be seen that the fixing orifice 11 and the through hole 32 are positioned at the same radial height. The through hole 32 is also designed as a stepped orifice, wherein the portion of the through hole 32 provided in the flange element 13 and optionally provided in the retaining ring 38 and the disc spring 37 has a larger diameter than the portion introduced into the body 12.

[0057] Also in Figure 6 In this case, the leaf spring 37 is made so wide that the leaf spring is evenly distributed between the plate portion 19 and the flange element 13.

[0058] Then, combine Figure 7 Another sixth exemplary embodiment is illustrated, which shows that the dome portion 20 is no longer as... Figure 1 The dome portion 20 is formed not on the mounting plate 5, but on the flange element 13. Therefore, the dome portion 20 is a one-piece material component of the flange element 13. Thus, the mounting plate 5 is now pressed onto the axially protruding dome portion 20 of the flange element 13 / fixed by the interference fit 21.

[0059] In conjunction with the sixth exemplary embodiment, it should also be noted that the transition portion 25 implemented on the flange element 13, between the dome portion 20 and the section of the flange element that is radially directly adjacent to the dome portion 20, is again preferably provided with an undercut portion 26. Alternatively, it is also advantageous if the plate portion 19 has a chamfer 29, a rounding 30, or a protrusion 31 on its radially inner side and on the axial side facing the section that is directly radially adjacent to the dome portion 20.

[0060] As in the first exemplary embodiment, the surface structure 24 is preferably formed on a portion of the support surface 22 of the dome portion 20 and on the reverse support surface 23 of the flange element 13 that is in direct contact with the support surface 22.

[0061] In other words, according to the invention, the main plate (mounting plate 5) of the torsional damper (damper 4) is shaped such that the contact surface (support area 10) for the reverse retainer provided by the customer is axially formed, and thus the desired fixing hole 11 is provided. The inner diameter of the main plate is formed as a dome (dome portion) and forms an interference fit 21 with the inner diameter of the arcuate spring flange (flange element 13), which takes over the positioning of the torsional damper in the pulley decoupler 1 until the assembly is screwed onto the crankshaft by the customer using the central screw 47. If desired, the torsional damper can be positioned relative to the pulley decoupler 1 during assembly by means of a protrusion 42 (torsional damper) drawn in the assembly line in the arcuate spring flange (hole). To prevent the formation of a wave portion and thus to prevent leakage of the leaf spring 37, a retaining plate (retaining ring 38) is riveted to the leaf spring 37.

[0062] According to the first variant, depending on the length of the dome on the motherboard (the length of the dome portion 20), it may be necessary to set a gap into the intermediate piece 46. The gap 46 is advantageously made by a tool.

[0063] The torsional damper is positioned about the pulley decoupler 1 by means of an assembly device in the assembly line via a positioning opening 40 in the hub (hub component 2; located on the outer periphery) and a positioning hole 11 in the main board.

[0064] In the second variant, the difference from the first variant is that the torsional damper is positioned about the pulley decoupler 1 by means of at least one through hole (through hole 32) in the hub and positioning hole 11 in the main plate.

[0065] Furthermore, a tool drop undercut 26 is implemented on the dome to achieve better axial coverage of the component. If the arcuate spring flange has teeth, corrugations, or contours on its inner diameter, it can receive the formed debris here. Alternatively or otherwise, a protrusion can be implemented on the arcuate spring flange.

[0066] To reduce the manufacturing cost of spacer 16, the spacer can be made shorter if the dome length of the main laminate and the dome length of the arc-shaped spring flange are increased to their maximum values. This proves particularly advantageous if the stiffness of the folded dome (dome portion 20 and supporting web 18) is sufficient to allow the intermediate part to be completely eliminated.

[0067] Explanation of reference numerals in the attached figures

[0068] 1. Pulley Decoupling

[0069] 2. Wheel hub components

[0070] 3 Traction wheels

[0071] 4 Shock absorbers

[0072] 5 Mounting Plate

[0073] 6. Fastening Area

[0074] 7. Mass Components

[0075] 8-axis collar area

[0076] 9. Spring elements

[0077] 10 Support Area

[0078] 11 Fixed opening

[0079] 12 main body

[0080] 13 Flange components

[0081] 14 Riveted connectors

[0082] 15 Rivets and Bolts

[0083] 16 Middleware

[0084] 17. Acceptance Space

[0085] 18 Supporting web

[0086] 19-board section

[0087] 20. Dome section

[0088] 21 Interference Fit Section

[0089] 22 Support surface

[0090] 23 Reverse support surface

[0091] 24 Surface Structure

[0092] 25. Transition Section

[0093] 26. Undercut

[0094] 27. Inner side

[0095] 28 Side

[0096] 29 Chamfer

[0097] 30 Rounding

[0098] 31 convex part

[0099] 32 through holes

[0100] 33. Disc-shaped area

[0101] 34. Protrusion

[0102] 35 bearing

[0103] 36 Friction Ring

[0104] 37 leaf spring

[0105] 38 Retaining ring

[0106] 39 Elastomer Layer

[0107] 40 Positioning opening

[0108] 41 recess

[0109] 42 protrusions

[0110] 43 Wall area

[0111] 44a First end face

[0112] 44b Second end face

[0113] 45. Rotation axis

[0114] 46 gaps

[0115] 47 Central Screw

Claims

1. A pulley decoupling device (1) for a motor vehicle transmission system, the pulley decoupling device having a hub assembly (2) configured for attachment to a crankshaft of an internal combustion engine, a flexible drive element wheel (3) supported relative to the hub assembly (2) in a spring-damped manner, and a shock absorber (4), wherein, The hub assembly (2) includes a flange element (130) elastically supported relative to the drive element wheel (3) by means of a spring element (9), the shock absorber (4) includes a mounting plate (5) extending radially outward from a fastening region (6) to a collar region (8) receiving at least one mass element (7), the fastening region being supported on the hub assembly (2) and connected to the hub assembly (2) in a form-fitting locking and / or force-fit manner, characterized in that the fastening region (6) has a plate portion (19) axially supported on the flange element (13) of the hub assembly (2), and the plate portion is held relative to the hub assembly (2) via an axially extending dome portion (20) formed by the mounting plate (5) or the flange element (13).

2. The pulley decoupling device (1) according to claim 1, characterized in that, The dome portion (20), which is a component of the mounting plate (5), protrudes axially from the plate portion (19) and is radially supported on the flange element (13) from the inside.

3. The pulley decoupling device (1) according to claim 1, characterized in that, The dome portion (20), which is a component of the flange element (13), protrudes axially and is radially supported on the plate portion (19) from the inside.

4. The pulley decoupling device (1) according to any one of claims 1 to 3, characterized in that, The dome portion (20) is fastened to the flange element (13) or the mounting plate (5) by means of an interference fit (21).

5. The pulley decoupling device (1) according to any one of claims 1 to 3, characterized in that, The dome portion (20) has a surface structure (24) on the support surface (22) of the dome portion that contacts the flange element (13) or the mounting plate (5) and / or the flange element (13) or the mounting plate (5) has a surface structure (24) on the reverse support surface (23) of the mounting plate or the flange element that contacts the dome portion (20).

6. The pulley decoupling device (1) according to any one of claims 1 to 3, characterized in that, The fastening area (6) has an undercut (26) in the transition (25) between the plate portion (19) and the dome portion (20) on the side facing the flange element (13).

7. The pulley decoupling device (1) according to any one of claims 1 to 3, characterized in that, The flange element (13) has a chamfer (29), a rounding (30), or a protrusion (31) on the radially inner side (27) of the flange element and on the axial side (28) facing the plate portion (19).

8. The pulley decoupling device (1) according to any one of claims 1 to 3, characterized in that, The mounting plate (5) forms a planar support area (10), which is located radially outside the fastening area (6) and radially inside at least one spring element (9) that supports the hub assembly (2) relative to the drive element wheel (3). The support area is axially spaced from the hub assembly (2) and has at least one fixing hole (11).

9. The pulley decoupling device (1) according to claim 8, characterized in that, The hub component (2) has a through hole (32) that penetrates radially at the level of the support area (10) of the mounting plate (5).

10. The pulley decoupling device (1) according to claim 9, characterized in that, The through hole (32) and the at least one fixed hole (11) are arranged at the same radial height.

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