Multi-layer pinion configuration for a bicycle

Abstract

The invention relates to a multi-stage pinion arrangement for fastening on a rear wheel axle arrangement of a bicycle, comprising at least one first pinion, at least one second pinion, and at least one damper body, wherein the at least one damper body extends from the at least one first pinion in the direction of the at least one second pinion, wherein the at least one damper body bears at least against an axial side of the first pinion.

Description

Technical Field

[0001] This invention relates to a multi-layer pinion configuration for bicycles. This multi-layer pinion configuration can be fastened to the rear axle of a bicycle. Furthermore, this invention relates to a rear axle configuration of a bicycle having this multi-layer pinion configuration. Background Technology

[0002] Bicycles can be equipped with a transmission configuration, such as a chain drive. A bicycle transmission configuration is used to transmit torque from the rider to the rear drive wheel, thereby driving the bicycle. For example, a transmission configuration can transmit torque from the front sprocket configuration via a chain to the rear sprocket, thus driving the rear drive wheel. This type of transmission configuration is also called a drivetrain.

[0003] A bicycle sprocket assembly can have one sprocket or several individual sprockets. The front sprocket is generally called the chainring. The chainring can be secured using different types of fastening devices. For example, it can be secured using chainring screws, or directly mounted to the bicycle crank. The rear sprocket is usually called the pinion. Multiple rear sprockets or pinions can be referred to as a multi-gear configuration, pinion configuration, freewheel, pinion sprocket, or pinion set. This multi-gear configuration or freewheel is usually arranged in a way that allows it to be secured to the freewheel of the rear drive sprocket. The drivetrain configuration may also include a rear shift mechanism, which allows the chain to shift between the pinions in the multi-gear configuration. Therefore, different gear levels or gears can be engaged using the shift mechanism, where the corresponding gear level is related to which pinion in the multi-gear configuration the chain is on.

[0004] US 10 112 681 B2 or EP 2 319 752 A2, for example, disclose multi-layered pinion configurations. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-layer pinion configuration that can be used to reduce the noise generated during the operation of the multi-layer pinion configuration.

[0006] The solution of this invention to achieve the above-mentioned objective is a multi-layer pinion configuration having the following characteristics.

[0007] A multi-layer pinion configuration for fastening to a bicycle rear wheel axle includes at least one first pinion, at least one second pinion, and at least one damper. The at least one damper extends from the at least one first pinion toward the at least one second pinion, wherein the at least one damper abuts at least against the axial side of the first pinion.

[0008] The at least one damper is used to improve the sound effect of the multi-layer pinion configuration. The at least one damper improves the sound effect by reducing vibration and / or noise. The at least one damper is in contact with at least the axial side of the pinion in the multi-layer pinion configuration to reduce vibration and / or noise.

[0009] Further implementation methods are given below.

[0010] The at least one damper can be supported on at least the axial side of the first pinion. The at least one damper can be mounted on at least the axial side of the first pinion.

[0011] The at least one damper may contact the at least one second pinion at least radially. The at least one damper may be radially supported at least on another pinion in a multi-layered pinion configuration, wherein the at least one other pinion may be adjacent to the first pinion or axially distant from the first pinion. The at least one damper may contact at least segmentally the radially inner edge or radially inner surface of the respective pinion. The radial contact between the at least one damper and the at least one second pinion facilitates centering of the at least one damper during installation.

[0012] The at least one damper may be axially supported at least on the axial sides of the first and second pinions facing each other. In addition to being supported on the first and second pinions, the at least one damper may also be supported on another pinion and / or pinion assembly in a multi-layered pinion configuration. The at least one damper may also be supported on another component, such as a closed body. Specifically, the at least one damper may be axially supported at least on the axial sides of the first and second pinions. The at least one damper may have axial sides and / or axial end faces, by means of which it may be supported on the axial sides of the pinions.

[0013] The first and second pinions can be pinions arranged axially in the middle region of a multi-layered pinion configuration. The at least one first pinion can have a diameter smaller than the diameter of the largest pinion but larger than the diameter of the smallest pinion. The second pinion can have a diameter larger or smaller than the diameter of the first pinion.

[0014] At least one first pinion of the multi-pinion configuration is adapted to connect the multi-pinion configuration to the rear wheel axle of a bicycle in a torque-transmitting manner. The multi-pinion configuration can be supported on the rear wheel axle of the bicycle by at least one first pinion. The at least one first pinion can, for example, be connected to and supported on a drivetrain body on the rear wheel axle of the bicycle in a torque-transmitting manner. However, multiple pinions of the multi-pinion configuration can also be connected to the rear wheel axle of the bicycle, and particularly to the drivetrain body, in a torque-transmitting manner.

[0015] The at least one first pinion can form the final pinion of a multi-pinion configuration. In this case, the at least one first pinion can be the largest pinion, that is, the pinion with the largest number of teeth and / or the largest diameter. This final pinion can connect the multi-pinion configuration to the rear axle configuration of the bicycle in a torque-transmitting manner. The multi-pinion configuration can be radially supported on the rear axle configuration of the bicycle by the final pinion.

[0016] The at least one damper can be arranged between the at least one first pinion and the at least one second pinion by press fitting. The at least one damper may have redundant dimensions in the axial direction. The axial extension of the damper may be greater than the axial distance between the axial sides of the first and second pinions. During installation, the damper is inserted before the first and second pinions are connected together, for example, by pins or bolts. Accordingly, the damper is pressed together or compressed when the first and second pinions are connected, thereby holding it between the first and second pinions by press fitting.

[0017] The at least one damper may have redundant dimensions in the radial direction. The outer diameter of the at least one damper may, for example, be at least partially larger than the inner diameter of at least one pinion in a multi-layer pinion configuration.

[0018] The at least one damper can be permanently fixedly connected to the first pinion and / or the second pinion. When the damper is permanently fixedly connected to the first pinion and / or the second pinion, the contact surface between the damper and at least one of the first pinion and / or the second pinion can be increased, thereby further enhancing the damping effect of the at least one damper.

[0019] The at least one damper may be bonded to a first pinion and / or a second pinion. For example, the at least one damper may be bonded to an axial side of the first pinion and extend from this axial side toward an axial side of the second pinion. In this case, the at least one damper may be fastened only to the axial side of the at least one first pinion. The damper may also only contact the axial side of the first pinion. The at least one damper may also be bonded to the axial sides of both the first and second pinions. For example, the at least one damper may be bonded to an axial side of the first pinion and extend from this axial side toward a radially inner edge or radially inner surface of the second pinion. The at least one damper may abut against this radially inner edge or radially inner surface at least segmentally. For example, the at least one damper may abut against the radially inner edge or radially inner surface of the second pinion with its radially outer surface.

[0020] The at least one first pinion may have a gear ring, a coupling opening, and a connection area connecting the gear ring to the coupling opening. The coupling opening is adapted to connect the multi-layer pinion configuration to the rear wheel axle of the bicycle in a torque-transmitting manner. For this purpose, the coupling opening may have a torque-transmitting profile that can be coupled to a complementary profile on the rear wheel axle configuration or the transmission body of the rear wheel axle configuration. The gear ring extends radially outward around the coupling opening and is connected to the coupling opening via the connection area. The connection area between the gear ring and the coupling opening may be formed by one or more pinion arms.

[0021] The at least one damper may be arranged on the gear ring of the first pinion. In this case, the at least one damper may be arranged on the radially outer region of the first pinion (but radially inner region of the pinion teeth). The second pinion may be, for example, a next smaller pinion. The at least one damper may be arranged between the first pinion and the second pinion formed by the next smaller pinion.

[0022] The at least one vibration damper can be arranged on the connecting area of ​​the first pinion. The connecting area can be located radially inside the gear ring. The at least one vibration damper can be arranged radially between the gear ring of the first pinion and the connecting opening. The at least one vibration damper can be arranged in the middle region of the radial extension of the first pinion. The at least one vibration damper can extend from the connecting area of ​​the first pinion toward the direction of the second pinion, which is located axially in the middle region of the multi-layer pinion configuration or is a medium-sized pinion of the multi-layer pinion. At least one contact surface between the vibration damper and the first pinion and / or between the vibration damper and the second pinion can be increased to further enhance the vibration damping effect of the at least one vibration damper. In addition, dirt can be squeezed out radially toward the inner side of the multi-layer pinion configuration by the chain, thereby preventing shifting failures caused by foreign objects. The vibration damper arranged further in the radial direction can be protected from external mechanical loads caused by, for example, high-pressure cleaners or foreign objects / dirt.

[0023] The at least one damper may extend axially along at least one pinion toward the second pinion. The at least one damper may extend radially inward from the first pinion toward the second pinion along the at least one pinion. The at least one damper is constructed such that it does not contact the at least one pinion.

[0024] The at least one damper may be annular. The at least one damper may have axial side faces and / or axial end faces. The at least one damper may have a predetermined axial extension.

[0025] The at least one damper may have at least one radial outer surface and at least one radial inner surface. The radial outer surface and / or radial inner surface of the at least one damper may contact, in the radial direction, another component configured with at least one second pinion or multiple pinions. There may be continuous or segmented radial contact between the radial outer surface and / or radial inner surface of the at least one damper and another component configured with at least one second pinion or multiple pinions.

[0026] Furthermore, the at least one radially outer surface and the at least one radially inner surface may also not contact or only partially contact the multi-layer pinion configuration or the pinions. In this case, continuous or planar contact exists only between the at least one damper and at least one axial side of the first pinion and / or the second pinion.

[0027] The at least one damper may have at least one groove on at least one radially outer surface or radially outer edge and / or on at least one radially inner surface or radially inner edge. The at least one groove may, for example, be used for a bolt to connect two adjacent pinions. The at least one damper may abut against the bolt within the groove region. Furthermore, the at least one groove on the radially inner surface of the at least one damper may be used for one of a plurality of pinion arms.

[0028] The at least one vibration damper may be made of elastic plastic or elastic foam. For example, the at least one vibration damper may be made of polyurethane foam. The vibration damper may be made of, for example, a material named... It is made of foam plastic for sale. Vibration dampers, for example, can also be made from materials named after... Made of plastic for sale. Foamed plastics can be implemented as closed-cell structures to reduce the absorption of moisture and dirt.

[0029] A multi-layer pinion configuration can be assembled from multiple independent pinions connected by pins or bolts. It can also be a pinion assembly consisting of integrally formed pinions or welded pinions. For example, the smallest pinion in a multi-layer pinion configuration can form such an assembly. This assembly can be connected to an independent pinion or another pinion assembly via bolts or pins. Alternatively, only the final pinion of the multi-layer pinion configuration can be implemented as an independent pinion, with the remaining pinions forming a pinion assembly of the aforementioned type.

[0030] The present invention also relates to a rear wheel configuration for a bicycle. The rear wheel configuration includes: a rear wheel having a rear axle adapted for fastening to a bicycle frame; a transmission body rotatably supported on the rear axle; and a multi-layer pinion configuration of the aforementioned type, which can be connected to the transmission body in the transmission direction.

[0031] The transmission unit can be connected to the rear axle via a freewheel mechanism. The transmission unit can also be referred to as the "freewheel body".

[0032] The spokes and / or composite surfaces of the rear wheel may generate vibrations and / or sound radiation, which can lead to unwanted noise while riding a bicycle. The tire pressure of the rear wheel can also generate these unwanted noises. Such vibrations and / or sound radiation can be reduced by means of at least one damper or by means of the aforementioned rear wheel configuration, thereby avoiding unwanted noise. Attached Figure Description

[0033] The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings. Wherein:

[0034] Figure 1 A diagram of a bicycle;

[0035] Figure 2 A top view of a multi-layer pinion configuration according to one embodiment;

[0036] Figure 3 For along Figure 2 Sectional view of section line III-III in the diagram;

[0037] Figure 4 For along Figure 3 A sectional view of section line IV-IV in the diagram;

[0038] Figure 5 for Figures 2 to 4 A partially cut-away perspective view of the pinion configuration shown;

[0039] Figure 6 for Figure 5 A magnified view of a specific part of the image;

[0040] Figure 7 A cross-sectional view of a multi-layered pinion configuration according to another embodiment; and

[0041] Figure 8 For example Figure 7 A partially cut-out perspective view of the multi-layered pinion configuration shown. Detailed Implementation

[0042] Figure 1 A bicycle 10 is illustrated illustratively. The bicycle 10 includes a bicycle frame 12, a front wheel 14, a rear wheel 16, handlebars 18, a saddle 20, and a drivetrain 22. The drivetrain 22 includes a chain 24, a shift mechanism 26, a front sprocket 28, and a rear multi-gear configuration 30 with multiple pinions 32. Each pinion 32 has multiple teeth on its outer circumference that mesh with the chain 24. The front sprocket 28 is connected to a crank configuration 34. Pedals are provided on the crank configuration 34.

[0043] The directional descriptions used below, right / left and forward / backward, refer to the direction of travel of bicycle 10, which is equivalent to the rider's perspective on bicycle 10.

[0044] The front wheel 14 is connected to the bicycle frame 12 via a front fork 35. The front fork 35 is connected to the handlebars 16. The bicycle frame 12 typically has left and right rear fork ends or frame eyes, between which the rear wheel 16 is mounted. The rear wheel 16, together with the multi-stage pinion configuration 30, rotates about an axis of rotation A. The term "axial" here refers to the axis of rotation A of the multi-stage pinion configuration 30 or a direction parallel to it, which... Figure 1The center is perpendicular to the drawing plane. The diameter of the pinion 32 decreases outward along the axial direction of axis A, meaning that the largest pinion is axially further inward than the smallest pinion. The above description applies both to bicycles with known pinion configurations and to bicycles with the pinion configuration of the present invention.

[0045] The multi-pinion configuration 30 is connected to and secured to a drivetrain body (not shown) on the axle configuration of the rear wheel 16 of the bicycle 10 in a torque-transmitting manner. Torque can be transmitted via the multi-pinion configuration 30 to the axle configuration on the rear wheel 16, and thus to the rear wheel 16 of the bicycle 10. The shifting mechanism 26 moves the chain 24 between the individual pinions 32 of the multi-pinion configuration 30; that is, the chain 24 can move from one pinion 32 to the next by means of the shifting mechanism 26. This allows different gear levels or positions to be engaged by means of the shifting mechanism 26, where the corresponding gear level is related to which pinion 32 of the multi-pinion configuration 30 the chain 24 is on.

[0046] Figure 2 , 3 Views 4 and 5 show different views of the multi-layer pinion configuration 30 according to the first embodiment, wherein Figure 3 Show along Figure 2 Sectional view of section line III-III in the middle, Figure 4 Show along Figure 3 Sectional view along section line IV-IV. The multi-layer pinion configuration 30 has a final pinion 32a. The final pinion 32a is used to transmit torque from the multi-layer pinion configuration 30 to the shaft configuration on the rear wheel 14 (see...). Figure 1 The multi-layer pinion configuration 30 can be supported on the rear axle via a final pinion 32a. The final pinion 32a is the pinion with the largest diameter in the multi-layer pinion configuration 30. The final pinion 32a connects to multiple other pinions 32b to 32l (see...). Figure 3 The diameters of pinions 32b to 32l decrease axially outward from the final pinion 32a.

[0047] The final pinion 32a has a connection opening 36 through which the multi-layer pinion configuration 30 can be inserted to the shaft configuration on the rear wheel 16. The connection opening 36 has a torque transmission profile on its inner circumference, through which the multi-layer pinion configuration 30 can be connected to the transmission body (not shown) of the shaft configuration on the rear wheel 16 in a torque-transmitting manner. The torque transmission profile includes a plurality of radially inwardly extending protrusions 38. The transmission body of the shaft configuration on the rear wheel 16 has a profile on its outer surface that is complementary to the torque transmission profile on the connection opening 36 of the final pinion 32a. The final pinion 32a also has pinion arms 40 extending between the connection opening 36 and a gear ring 42 having pinion teeth on its outer circumference. The pinion arms 40 connect the connection opening 36 to the radially externally arranged gear ring 42; that is, the pinion arms 40 are constructed within the connection area between the gear ring 42 and the connection opening 36.

[0048] An opening 44 is constructed in the gear ring 42, into which a pin or bolt 46 is inserted for connection with the next smaller pinion 32b. The gear ring 42 also has multiple openings 48. The openings 48 primarily contribute to reducing the weight of the multi-layered pinion configuration 30. Figure 2 and Figure 4 As shown, multiple pinions 32b to 32l have the same or similar openings 48. The openings 48 are constructed between the openings 44 for the bolt 46.

[0049] The multi-pinion configuration 30 has a damper 50. The damper 50 is used for vibration damping and noise reduction. The sound effect of the multi-pinion configuration 30 can be improved by the damper 50, that is, the unwanted noise that occurs during the operation of the multi-pinion configuration 30 can be reduced. The damper 50 is arranged between the final pinion 32a and the next smaller pinion 32b. The damper 50 abuts against the axial side surface of the final pinion 32a and the axial side surface of the next smaller pinion 32b. The axial surface of the next smaller pinion 32b faces the final pinion 32a. The damper 50 extends radially inward from the gear ring 42 of the final pinion 32a.

[0050] Especially in Figure 4 The shape of the damper 50 can be seen in the figure. In this figure, the damper 50 is along... Figure 3 The section is cut along line IV-IV. The damper 50 is generally annular. The damper 50 extends along the pinion 32b. The radial extension of the damper 50 is less than the radial extension of the annular pinion 23b. The damper 50 rests against the pinion 32b.

[0051] The damper 50 has recesses 52 in which the bolts 46 connecting the final pinion 32a and the pinion 32b extend. The recesses 52 are formed on the radially outer edge of the damper 50. The damper 50 also has other recesses 54. These recesses 54 are formed on the radially inner edge of the damper 50. The recesses 54 are formed on the damper 50 at positions where the pinion arms 40 extend from the gear ring 42 toward the coupling opening 36. According to this embodiment, six recesses 54 are provided because the final pinion 32a has six pinion arms 40.

[0052] The damper 50 can be press-fitted onto the multi-pinion configuration 30. When installing the multi-pinion configuration 30, the damper 50 can be inserted between the final pinion 32a and the next smaller pinion 32b and compressed. The damper 50 is thus fastened to the multi-pinion configuration 30 via press-fit. Before fastening or installation, the damper 50 has a large axial extension greater than the axial distance between the final pinion 32a and the next smaller pinion 32b. Therefore, before being compressed during installation, the damper 50 has a redundant axial dimension in its initial state.

[0053] The multi-pinion configuration 30 also includes a closure or closure tube 56. The closure 56 is used to connect the multi-pinion configuration 30 to a transmission body (not shown) rotatably supported on the rear axle A. The closure 56 has an internal thread 58. The multi-pinion configuration 30 can be screwed to the transmission body via the internal thread 58. The closure 56 also has a section 60 that contacts the final pinion 32a. With the closure 56 screwed to the transmission body, the section 60, via the final pinion 32a, holds the entire multi-pinion configuration 30 axially in a predetermined position on the transmission body. In this predetermined position, the torque transmission profile on the engagement opening 36 of the final pinion 32a engages with a complementary profile on the transmission body in a torque-transmitting manner. The closure 56 also has a support protrusion 62 extending axially. The support protrusion 62 radially supports the multi-pinion configuration 30. For this purpose, the support protrusion 62 can contact pinions 32k and 32l. Support protrusion 62 extends radially within the two pinions 32k and 32l. These two pinions 32k and 32l are the "smallest" pinions in the multi-layer pinion configuration 30, meaning that pinions 32k and 32l have the smallest number of teeth in the multi-layer pinion configuration 30, with pinion 32l having the fewest teeth. Within the region of support protrusion 62, a groove is provided on the outer periphery of the enclosure 56, in which a retaining ring 64 is arranged for axially fixing the pinion set 65 to the enclosure 56. The retaining ring 64 engages the smallest pinion 32l from behind.

[0054] Pinions 32b to 32h, like the final pinion 32a, are independent pinions. Especially from... Figure 3 It can be seen that pinions 32a and 32b to 32h are ultimately connected to each other by bolts 46. Pinions 32j, 32k, and 32l can be integrally formed or welded together. Therefore, pinions 32j, 32k, and 32l form a pinion assembly connected to the adjacent pinion 32i by bolts 46.

[0055] Figure 5 A perspective view of the multi-layer pinion configuration 30 is shown. A damper 50 is arranged between a final pinion 32a and a next smaller pinion 32b. The damper 50 is held between the final pinion 32a and the pinion 32b by a press fit. The final pinion 32a and the pinion 32b are independent pinions connected by a bolt 46. The damper 50 rests against the bolt 46 with its radially outer edge or its radially outer surface.

[0056] Figure 6 Show Figure 5 A magnified view of a local area. Figure 6 Specifically, the final pinion 32a and the next smaller pinion 32b, connected by a bolt 46, are shown. Each of the pinions 32a and 32b has an opening 44 through which the bolt 46, connecting the two pinions 32a and 32b, extends. A damper 50 extends radially inward from the area where the bolt 46 is arranged. The damper 50 abuts at least partially against the axial side 70 of the first pinion 32a and at least partially against the axial side 72 of the second pinion 32b with axial sides 66 and 68. The axial sides 70 and 72 of the pinions 32a and 32b face each other. Therefore, a press fit for fastening the damper 50 is created through the axial sides 70 and 72 of the pinions 32a and 32b. The damper 50 at least partially fills the intermediate space between the two pinions 32a and 32b.

[0057] Figure 7 A cross-sectional view of the multi-layer pinion configuration 30 according to the second embodiment. Figure 8 A partially cut-away perspective view of the multi-layer pinion configuration 30 according to the second embodiment.

[0058] The basic structure of the multi-layer pinion configuration 30 according to the second embodiment is equivalent to the basic structure of the multi-layer pinion configuration 30 according to the first embodiment, and this basic structure has been referred to Figures 2 to 6 As described above, the statements made for the first embodiment also apply similarly to the multi-layer pinion configuration 30 according to the second embodiment.

[0059] The multi-layer pinion configuration 30 has a damping element 74. The damping element 74 is arranged between the final pinion 32a and the third largest pinion 32d of the multi-layer pinion configuration 30, which forms the second pinion of the damping structure formed by the final pinion 32a, the damping element 74, and the pinion 32d. The pinion 32d is one of the medium-sized pinions in the multi-layer pinion configuration 30, meaning that the pinion 32d is generally arranged axially in the middle region of the multi-layer pinion configuration 30. Since the damping element 74 extends substantially into the middle region of the multi-layer pinion configuration 30 or the pinion set 65, the acoustic vibration of the pinion set 65, which is assembled from pinions 32b to 32j by means of bolts 46 and fixed at one end, is particularly effectively reduced. This also applies similarly to (not shown in the figure) pinion sets 65, for example, integrally formed or assembled by welding multiple pinion rings.

[0060] The damper 74 extends between the axial sides 76 and 78 of the final pinion 32a and the pinion 32d facing each other. Unlike the first embodiment, the damper 74 is not arranged between the final pinion 32a and the next smaller pinion 32b, but between the final pinion 32a and the pinion 32d, the diameter of which is smaller than that of the pinion 32b.

[0061] A damper 74 is arranged radially inside the gear ring 42 of the final pinion 32a. The damper 74 is arranged on the pinion arm 40, specifically on the connection area defined by the pinion arm 40 between the gear ring 42 of the final pinion 32a and the connecting opening 36. The damper 74 is supported on the pinion arm 40. The damper 74 extends from the axial side 76 of the pinion 32a toward the pinion 32d. The damper 74 is also supported on the axial side 78 of the pinion 32d. The damper 74 is held between the final pinion 32a and the pinion 32d by a press fit. The damper 74 only contacts the axial side 76 of the first pinion 32a and the axial side 78 of the pinion 32d in the multi-layer pinion configuration 32.

[0062] The damper 74 extends radially inward from the final pinion 32a into the next smaller pinion 32b, that is, from the next smaller pinion 32b after the final pinion 32a, pinion 32c, to the second pinion 32d. The damper 74 does not contact pinions 32b and 32c.

[0063] The damper 74 is annular. The damper 74 has a predetermined axial extension. The damper 74 has two end faces 80 and 82. The damper 74 abuts against the axial side 76 of the final pinion 32a within the region of the pinion arm 40 with end face 80. The damper 74 abuts against the pinion 32d with end face 82. The damper 74 extends radially beyond the inner circumference of the pinion 32d.

[0064] Vibration dampers 50 and 72 are used to improve the sound effect of the multi-layer pinion configuration 30, because vibration dampers 50 and 74 can be used to reduce vibration and / or noise.

Claims

1. A multi-layer pinion configuration for fastening to a rear wheel axle configuration of a bicycle, comprising: At least one first pinion, At least one second pinion, and At least one damper The at least one damper extends from the at least one first pinion toward the at least one second pinion, and the at least one damper at least abuts against the axial side of the first pinion. The at least one damper is arranged between the at least one first pinion and the at least one second pinion by press fitting, wherein the at least one damper has redundant dimensions in the axial direction, and wherein the axial extension of the damper is greater than the axial distance between the axial sides of the first pinion and the second pinion.

2. The multi-layer pinion configuration according to claim 1, The at least one damper is supported at least on the axial sides of the first pinion and the second pinion facing each other.

3. The multi-layer pinion configuration according to claim 1 or 2, The at least one damper is in contact with the at least one second pinion at least radially.

4. The multi-layer pinion configuration according to claim 1 or 2, At least the first pinion is adapted to connect the multi-layer pinion configuration to the rear wheel axle configuration of the bicycle in a torque-transmitting manner.

5. The multi-layer pinion configuration according to claim 1 or 2, The at least one damper is permanently fixedly connected to the first pinion and / or the second pinion.

6. The multi-layer pinion configuration according to claim 1 or 2, The at least one first pinion has a gear ring, a coupling opening, and a connection area that connects the gear ring to the coupling opening.

7. The multi-layer pinion configuration according to claim 6, The at least one damper is arranged on the gear ring of the first pinion.

8. The multi-layer pinion configuration according to claim 6, The at least one damper is arranged in the connection area of ​​the first pinion.

9. The multi-layer pinion configuration according to claim 1 or 2, The at least one of the vibration dampers is ring-shaped.

10. The multi-layer pinion configuration according to claim 1 or 2, The at least one damper has at least one groove on at least one radial outer surface and / or on at least one radial inner surface.

11. The multi-layer pinion configuration according to claim 1 or 2, The at least one of the vibration dampers is made of plastic or foam plastic.

12. A rear wheel configuration for a bicycle, comprising: The rear wheel has a rear axle suitable for fastening to the bicycle frame; A transmission device body rotatably supported on the rear wheel axle; as well as According to any one of claims 1 to 11, the multi-layer pinion configuration can be connected to the transmission body in the transmission direction.

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