bicycle hub

Abstract

A bicycle hub is provided, comprising a hub axle, a hub shell, a sprocket support body, a first and a second pawl element, and a friction element. The hub shell and the sprocket support body are attached to the hub axle. The first pawl element has at least one first locking tooth and is configured to rotate with the sprocket support body. The second pawl element has at least one second locking tooth that meshes with the first locking tooth and is configured to rotate with the hub shell. The friction element is configured to rotate with one of the hub shell and the first pawl element and contacts a contacting element configured to rotate with the other of the hub shell and the first pawl element.The sprocket support body has a guide section designed to move the first pawl element and the second pawl element away from each other during rolling.

Description

BACKGROUND Cross-reference to other registrations

[0001] This application claims priority over US patent application US 15 / 869,783, filed on January 12, 2018. The entire disclosure of US patent application US 15 / 869,783 is hereby incorporated by reference. Field of invention

[0002] This invention relates generally to a bicycle hub. In particular, the present invention relates to a bicycle hub that is quieter when rolling than a conventional bicycle hub. Background information

[0003] Generally, bicycle wheels consist of a hub, several spokes, and a ring-shaped rim. The hub has an axle that is fixed to the bicycle frame so that it cannot rotate. The hub has a hub shell that is coaxially coupled to the axle, so that the hub shell is radially outward with respect to the axle. Bearings are designed and positioned to support the hub shell so that it can rotate freely around the axle. On some multi-speed bicycles, one wheel, typically the rear wheel, is equipped with a freewheel mechanism located on the hub. The freewheel mechanism usually has a one-way clutch function, meaning it transmits torque in only one direction. Thus, freewheel wheels allow the bicycle to move freely forward without any pedaling (i.e., while coasting).During rolling, the bicycle freewheel is considered to be in a freewheeling state in which the bicycle wheel can rotate freely while the chainrings remain stationary. SUMMARY

[0004] In general, the present disclosure relates to various features of a bicycle hub. One feature provides a bicycle hub in which, compared to a conventional bicycle hub with a conventional bicycle freewheel, the ratcheting noise can be reduced during rolling.

[0005] One aspect is the provision of a bicycle hub comprising a hub axle, a hub shell, a sprocket support body, a first ratchet element, a second ratchet element, and a friction element. The hub axle defines an axis of rotation. The hub shell is rotatably mounted on the hub axle to rotate about this axis. The sprocket support body is also rotatably mounted on the hub axle to rotate about this axis. The first ratchet element has at least one first ratchet tooth and is configured to rotate with the sprocket support body. The second ratchet element has at least one second ratchet tooth that meshes with the first ratchet tooth. The second ratchet element is configured to rotate with the hub shell.The friction element is configured to rotate with one of the hub housing and the first pawl element. The friction element contacts, in a radial direction along the axis of rotation, a contacted element which is configured to rotate with the other of the hub housing and the first pawl element. The friction element has an annular shape. The sprocket support body has an outer circumferential surface with a guide section configured to move, during rolling, the first and second pawl elements relative to each other in an axial direction along the axis of rotation.

[0006] With the bicycle hub, according to the first aspect, it is possible to reduce the noise caused by the ratcheting between the first and second pawl elements during freewheeling or rolling of a bicycle by increasing the sliding resistance of the first pawl element.

[0007] A second aspect is the provision of a bicycle hub comprising a hub axle, a hub shell, a sprocket support body, a first pawl element, a second pawl element, and a friction element. The hub axle defines an axis of rotation. The hub shell is rotatably mounted on the hub axle to rotate about this axis. The sprocket support body is also rotatably mounted on the hub axle to rotate about this axis. The sprocket support body has an outer circumferential surface. The first pawl element has at least one first pawl tooth and is configured to rotate with the sprocket support body. The second pawl element has at least one second pawl tooth that meshes with the first pawl tooth. The second pawl element is configured to rotate with the hub shell.The friction element is configured to rotate with one of the hub housing and the first pawl element. The friction element contacts, in a radial direction along the axis of rotation, a contacted element which is configured to rotate with the other of the hub housing and the first pawl element. The friction element comprises at least one non-metallic material. The outer circumferential surface of the sprocket support body has a guide section configured to move the first and second pawl elements relative to each other in an axial direction along the axis of rotation during rolling.

[0008] With the bicycle hub according to the second aspect, it is possible to reduce the noise caused by the ratcheting between the first and second pawl elements during freewheeling or rolling of a bicycle by increasing the sliding resistance of the first pawl element.

[0009] A third aspect is to provide a bicycle hub comprising a hub axle, a hub shell, a sprocket support body, a first pawl element, a second pawl element, a friction element, and a preload element. The hub axle defines an axis of rotation. The hub shell is rotatably mounted on the hub axle to rotate about the axis of rotation. The sprocket support body is rotatably mounted on the hub axle to rotate about the axis of rotation. The sprocket support body has an outer circumferential surface. The first pawl element has at least one first pawl tooth and is configured to rotate with the sprocket support body. The second pawl element has at least one second pawl tooth that meshes with the at least one first pawl tooth. The second pawl element is configured to rotate with the hub shell.The friction element is configured to rotate with one of the hub housing and the first pawl element. The friction element contacts, in a radial direction along the axis of rotation, a contact element configured to rotate with the other of the hub housing and the first pawl element. The preload element is located between the hub housing and the first pawl element. The preload element preloads the first pawl element in an axial direction along the axis of rotation. The outer circumferential surface of the sprocket support body has a guide section configured to move the first and second pawl elements relative to each other in an axial direction along the axis of rotation during rolling.

[0010] With the bicycle hub according to the third aspect, it is possible to reduce noises caused by ratcheting between the first and second pawl elements during freewheeling or rolling of a bicycle by increasing the sliding resistance of the first pawl element.

[0011] A fourth aspect is to provide a bicycle hub comprising a hub axle, a hub shell, a sprocket support body, a first pawl element, a second pawl element, and a friction element. The hub axle defines an axis of rotation. The hub shell is rotatably mounted on the hub axle to rotate about the axis of rotation. The sprocket support body is rotatably mounted on the hub axle to rotate about the axis of rotation. The sprocket support body has an outer circumferential surface. The first pawl element has at least one first pawl tooth and is configured to rotate with the sprocket support body. The second pawl element has at least one second pawl tooth that meshes with the at least one first pawl tooth. The second pawl element is configured to rotate with the hub shell. The friction element contacts the first pawl element in a radial direction around the axis of rotation.The outer circumferential surface of the sprocket support body has a guide section designed to move the first pawl element and the second pawl element away from each other in an axial direction of the axis of rotation during rolling.

[0012] With the bicycle hub according to the fourth aspect, it is possible to reduce the noise caused by ratcheting between the first and second pawl elements during freewheeling or rolling of a bicycle by increasing the sliding resistance of the first pawl element.

[0013] A fifth aspect is to provide a bicycle hub comprising a hub axle, a hub shell, a sprocket support body, a first pawl element, a second pawl element, a friction element, and an additional friction element. The hub axle defines an axis of rotation. The hub shell is rotatably attached to the hub axle to rotate about the axis of rotation. The sprocket support body is rotatably attached to the hub axle to rotate about the axis of rotation. The sprocket support body has an outer circumferential surface. The first pawl element has at least one first pawl tooth and is configured to rotate with the sprocket support body. The second pawl element has at least one second pawl tooth that meshes with the at least one first pawl tooth. The second pawl element is configured to rotate with the hub shell.The friction element is configured to rotate with either the hub housing or the first pawl element. The friction element contacts a contacted element in a radial direction of the axis of rotation, which is configured to rotate with either the hub housing or the first pawl element. The additional friction element is configured to rotate with either the hub housing or the first pawl element. The additional friction element contacts an additional friction surface provided on an additional contacted element. The additional contacted element is configured to rotate with either the hub housing or the first pawl element. The additional friction surface differs from the friction surface.The outer circumferential surface of the sprocket support body has a guide section designed to move the first pawl element and the second pawl element away from each other in an axial direction of the axis of rotation during rolling.

[0014] With the bicycle hub according to the fifth aspect, it is possible to reduce the noise caused by ratcheting between the first and second pawl elements during free-running or rolling of a bicycle by increasing the sliding resistance of the first pawl element.

[0015] According to a sixth aspect of the present invention, the bicycle hub is arranged according to one of the first to fifth aspects such that the guide section extends in at least one circumferential direction with respect to the chain wheel support body.

[0016] With the bicycle hub according to the sixth aspect, it is possible to better guide the first pawl element in order to release it from the second pawl element while a bicycle is rolling or freewheeling.

[0017] According to a seventh aspect of the present invention, the bicycle hub according to the sixth aspect is arranged such that the guide section has a flat surface which is formed perpendicular to an axial direction of the axis of rotation.

[0018] With the bicycle hub according to the seventh aspect, it is possible to better release the first pawl element from the second pawl element while the bicycle is running in neutral or freewheel mode.

[0019] According to an eighth aspect of the present invention, the bicycle hub is arranged according to the seventh aspect such that the guide section has an inclined surface with respect to the axial direction of the axis of rotation.

[0020] By considering the eighth aspect of the bicycle hub, it is possible to further minimize the noise during the rolling or freewheeling of a bicycle.

[0021] According to a ninth aspect of the present invention, the bicycle hub is arranged according to aspects one through eight such that the guide section leads the first pawl element towards the hub housing during rolling.

[0022] With the bicycle hub according to the ninth aspect, it is possible to better guide the first pawl element in order to release it from the second pawl element while a bicycle is rolling or freewheeling.

[0023] According to a tenth aspect of the present invention, the bicycle hub is configured according to aspects one through nine such that the at least one first locking tooth is arranged on an axially facing surface of the first pawl element. The at least one second locking tooth is arranged on an axially facing surface of the second pawl element, which faces the axially facing surface of the first pawl element.

[0024] With the bicycle hub according to the tenth aspect, it is possible to provide a fixed engagement between the first and the second pawl element during the drive of the hub housing.

[0025] According to an eleventh aspect of the present invention, the bicycle hub is configured according to aspects one through ten such that the outer circumferential surface of the sprocket support body has a first helical spline. The first pawl element has a second helical spline that meshes with the first helical spline. During riding, the first pawl element is movably mounted axially relative to the sprocket support body by means of a thrust force applied by the sprocket support body, engaging the first helical spline via the second helical spline.

[0026] With the bicycle hub according to the eleventh aspect, it is possible to provide a better engagement between the first and the second pawl element.

[0027] According to a twelfth aspect of the present invention, the bicycle hub according to the eleventh aspect is configured such that the chainring support body comprises several of the first helical splined teeth on its outer circumferential surface. The first pawl element comprises several of the second helical splined teeth, which engage in a keyed engagement with the first helical splined teeth of the chainring support body.

[0028] With the bicycle hub according to the twelfth aspect, it is possible to provide a better engagement between the first and the second pawl element.

[0029] According to a thirteenth aspect of the present invention, the bicycle hub is arranged according to one of the first to twelfth aspects such that the first and the second pawl element are ring-shaped elements.

[0030] With the bicycle hub according to the thirteenth aspect, it is possible to provide a better engagement between the first and the second pawl element.

[0031] According to a fourteenth aspect of the present invention, the bicycle hub is configured according to aspects one through thirteen such that the second pawl element has a hub housing engagement section which engages with the hub housing. One of the hub housing engagement sections and the hub housing comprises at least one radially extending projection, and the other of the hub housing engagement section comprises at least one recess which engages with the at least one projection.

[0032] With the bicycle hub according to the fourteenth aspect, it is possible to provide a good engagement between the second pawl element and the hub housing.

[0033] According to a fifteenth aspect of the present invention, the bicycle hub, according to aspects one through fourteen, further comprises a preloading element arranged between the hub housing and the first pawl element. The preloading element preloads the first pawl element axially towards the second pawl element.

[0034] With the bicycle hub according to the fifteenth aspect, it is possible to keep the first and second pawl elements engaged while riding and to maintain the disengagement of the first and second pawl elements while rolling.

[0035] According to a sixteenth aspect of the present invention, the bicycle hub is arranged, according to the fifteenth aspect, such that the preload element is configured to rotate with the hub shell. The first pawl element contacts the guide section and, during rolling, disengages from the second pawl element by a thrust force caused by a frictional torque between the preload element and the first pawl element.

[0036] With the bicycle hub according to the sixteenth aspect, it is possible to better keep the first and second pawl elements in a disengaged state.

[0037] According to a seventeenth aspect of the present invention, the bicycle hub is arranged according to one aspect of the first and sixteenth aspects such that at least one bearing arrangement rotatably supports the chain wheel support body on the hub axle.

[0038] With the bicycle hub according to the seventeenth aspect, it is possible for the chainring support body to rotate around the hub axle.

[0039] According to an eighteenth aspect of the present invention, the bicycle hub is arranged according to aspects one through the seventeenth such that at least one bearing arrangement rotatably supports the hub housing on the hub axle.

[0040] With the bicycle hub according to the eighteenth aspect, it is possible for the chain wheel support body to rotate around the hub axle.

[0041] According to a nineteenth aspect of the present invention, the bicycle hub is configured according to aspects one through eighteen such that the at least one first locking tooth comprises several first locking teeth. The at least one second locking tooth comprises several second locking teeth.

[0042] With the bicycle hub according to the nineteenth aspect, it is possible to provide a better engagement between the first and the second pawl element.

[0043] According to a twentieth aspect of the present invention, the bicycle hub is configured according to aspects one through nineteen such that the chainring support body has a stop which bears against the second pawl element in order to limit the axial movement of the second pawl element away from the hub housing. The first pawl element is arranged on an axial side of the second pawl element that is opposite the stop of the chainring support body.

[0044] With the bicycle hub according to the twentieth aspect, it is possible to easily position the second pawl element to maintain the engagement with the hub housing.

[0045] According to a twenty-first aspect of the present invention, the bicycle hub is arranged according to aspects one through twenty such that the hub housing comprises an interior space. The outer circumferential surface of the sprocket support body supports the first and second pawl elements. The first and second pawl elements are arranged at least partially within the interior space of the hub housing.

[0046] With the bicycle hub according to the twenty-first aspect, it is possible to design the bicycle hub to be relatively axially compact in order to fit into a standard frame.

[0047] According to a twenty-second aspect of the present invention, the bicycle hub is arranged according to aspects one through the twenty-first such that the friction element comprises at least one plastic / resin material which contacts the first pawl element in the radial direction of the axis of rotation.

[0048] With the bicycle hub according to the twenty-second aspect, it is possible to ensure good frictional resistance between the friction element and the first pawl element during the relative sliding between the friction element and the first pawl element.

[0049] Further tasks, features, aspects and advantages of the disclosed bicycle hub will become apparent to the person skilled in the art from the following detailed description, which, in conjunction with the accompanying drawings, discloses preferred embodiments of the bicycle hub. List of characters

[0050] Now, referring to the attached drawings, which form part of this original revelation: Fig. Figure 1 is a perspective view of a rear bicycle hub according to a first embodiment; Fig. 2 is a half-section view of the in Fig. 1 rear bicycle hub shown; Fig. Figure 3 is an enlarged perspective view of an end section of the bicycle hub with a Fig. 1 and Fig. 2 depicted bicycle freewheel; Fig. Figure 4 is an enlarged half-section view of the end section of the in Fig. 3 rear bicycle hub shown; Fig. Figure 5 is an enlarged half-cross-sectional view of a section of the in Fig. 4 bicycle hub shown, which shows the first and second pawl elements in a disengaged position for rolling; Fig. Figure 6 is an enlarged half-cross-sectional view of a section of the in Fig. 4 bicycle hub shown, which shows the first and second pawl elements in an engagement position to drive a hub housing of the bicycle hub; Fig. Figure 7 is a perspective exploded view of selected parts of an end section of the in Fig. 1 to Fig. 6 rear bicycle hub shown; Fig. 8 is another exploded view of selected parts of an end section of the Fig. 1 to Fig. 6 rear bicycle hub shown; Fig. Figure 9 is a perspective exploded view of selected parts of an end section of the in Fig. 1 to Fig. 6 rear bicycle hub shown; Fig. 10 is another exploded view of selected parts of an end section of the in Fig. 1 to Fig. 6 rear bicycle hub shown; Fig. 11 is a perspective view of a modified sprocket support body, which is combined with the one described in the Fig. 1 to Fig. The bicycle hub shown in section 6 can be used; and Fig. Figure 12 is an enlarged view of a section of the in Fig. 11 modified sprocket support body shown. DETAILED DESCRIPTION OF EXECUTION FORMS

[0051] Selected embodiments will now be explained with reference to the drawings. It will be apparent to those skilled in the art in the field of bicycles from this disclosure that the following descriptions of the embodiments are provided for illustrative purposes only and not for the purpose of limiting the invention as defined by the attached claims and their equivalents.

[0052] First on Fig. 1. Referring to, a rear bicycle hub 10 shown, which with a bicycle freewheel 12 is equipped according to a first illustrated embodiment. As in Fig. As shown in 1, the bicycle hub includes 10 essentially a hub axle 14 and a hub housing 16 Here is the hub axle. 14 a conventional element that forms a wave segment 14awith a first end cap 14b , which are located at a first threaded end of the hub axle 14 is screwed on, and a second end cap 14c , which are attached to a second threaded end of the hub axle 14 It is screwed on. The hub axle 14 defines an axis of rotation A The hub housing 16 It is rotatable on the hub axle 14 attached to rotate around the axis of rotation A to turn the hub housing 16 has a central tubular body 16a and a pair of spoke mounting flanges 16b and 16c extending radially from the central tubular body 16a extend outwards.

[0053] As in the Fig. 1 and Fig. Shown in section 2 is a frame locking device. 18 for attaching the bicycle hub 10The frame locking device is provided in a conventional manner on a (not shown) bicycle frame. In the first illustrated embodiment, the frame locking device comprises 18 a skewer or a spindle 18a , which have a cam lever mechanism 18b has at one end of the spindle 18a is attached. Thus, the bicycle hub can 10 to be attached to a rear section of a (not shown) bicycle frame of a bicycle.

[0054] As in Fig. As shown in section 2, the bicycle hub includes... 10 furthermore, at least one bearing arrangement for rotatably supporting the hub housing 16 on the hub axle 14 In the illustrated embodiment, the hub housing 16 through a pair of storage arrangements 20 rotatable on the hub axle 14 fastened. The bearing arrangements 20These are conventional parts that are well known in the bicycle field, and therefore the bearing arrangements are 20 This is not explained or illustrated in detail here. Other storage arrangements can be used depending on requirements and / or preferences.

[0055] Now, referring to the Fig. 3 to Fig. The bicycle hub comprises 10 10 furthermore at least one storage arrangement 22 , a sprocket support body 24 , a first locking pawl element 26 and a second locking pawl element 27 . The at least one storage arrangement 22 rotatably supports the sprocket support body 24 on the hub axle 14 In the first illustrated embodiment, the sprocket support body 24 through a pair of storage arrangements 22 rotatable on the hub axle 14 attached. The sprocket support body 24 and the first and second locking pawl elements 26 and27 form the bicycle freewheel 12 The bicycle freewheel 12 is set up to accommodate multiple sprockets S to record in the conventional way.

[0056] The rolling or freewheeling occurs when the sprocket support body 24 by a chain on a rotation in a drive direction (i.e. clockwise around the axis of rotation) A , seen from the freewheel side of the bicycle hub 10 ), is prevented, while the hub housing 16 in one direction of rotation. Furthermore, a freewheel or idle occurs when the hub housing rotates. 16 in the direction of drive rotation, it rotates faster than the sprocket support body 24 in the direction of drive rotation through the chain. The first and second pawl elements 26 and 27 move in the first and second axial directions D1 and D2 relative to each other, as in the Fig. 5 and Fig. Figure 6 shows the first locking pawl element. 26 in the first axial direction D1 to the second locking pawl element 27 pre-tensioned into an engagement position, as in Fig. Figure 6 is visible. During rolling, the first locking pawl element is engaged. 26 in the second axial direction D2 from the second locking pawl element 27 away from the center of the hub shell 16 moved when the sprocket support body 24 stops rotating in the direction of drive rotation, and the hub housing 16 continues to rotate in the direction of drive rotation. As a result, the first and second pawl elements are engaged. 26 and 27 removed from operation so that they are separated by a gap, as in Fig. 5 can be seen.

[0057] The bicycle hub also has a friction element. 28The bicycle hub also includes an additional friction element. 30 In the illustrated embodiment, the friction element 28 radially between the first and second pawl elements 26 and 27 in relation to the axis of rotation A This arrangement is intended, as will be explained in more detail later. With this arrangement, during rolling, for example when the sprocket support body... 24 stops rotating in the direction of drive rotation, and the hub housing 16 continues to rotate in the direction of drive rotation, the first and second pawl elements 26 and 27 due to a frictional torque between the friction element 28 and the first locking pawl element 26 out of engagement. In this way, a freewheeling noise, caused by ratcheting between the first and second pawl elements, is eliminated. 26 and 27during freewheeling, it is eliminated or reduced. In other words, in the illustrated embodiment, the functions of the friction element are intended to be... 28 and the additional friction element 30 , provide a frictional torque to engage the first pawl element during rolling 26 in a remote position in relation to the second locking pawl element 27 to hold. The additional friction element 30 can be omitted by generating the frictional torque.

[0058] How best to in the Fig. 7 to Fig. As can be seen in section 10, the bicycle hub is included. 10 furthermore a pre-tensioning element 34 As shown, the prestressing element 34 between the hub housing 16 and the first locking pawl element 26 arranged. The prestressing element 34 tensions the first locking pawl element 26 in axial direction D1to the second locking pawl element 27 forward into the engagement position. Preferably, the preload element 34 set up to align with the hub shell 16 to rotate the preload element 34 includes, for example, a compression spring in the illustrated embodiment and the additional friction element. 30 In other words, the additional friction element 30 in the illustrated embodiment provided as a separate piece, which is attached to the end of the compression spring of the preload element. 34 is attached to the first locking pawl element 26 is facing it. Alternatively, the additional friction element can be used 30 be omitted, so that one end winding of the preload element 34 which forms an additional friction element.

[0059] How best to Fig. As can be seen in section 10, the hub housing 16 preferably an interior 35up. Each of the pawl support body 30 , the prestressing element 34 and the first and second locking pawl elements 26 and 27 is at least partially inside 35 of the hub housing 16 arranged. A dust shield 36 is intended to expand the interior 35 between the sprocket support body 24 and the hub housing 16 to cover. The dust shield 36 It also covers a ring-shaped gap between the sprocket support body 24 and the hub housing 16 off. As in Fig. As can be seen in section 7, a support holding arrangement is in place. 37 the dust shield 36 on the hub housing 16 The support arrangement 37 includes a retaining ring or clamp 37a , which fits into a recess in the hub housing 16 intervenes, and a support element 16b , which is attached to the retaining ring 37bis held and that the axial movement of the dust shield 36 limited externally.

[0060] The sprocket support body 24 It forms a drive element that has a tubular shape. The sprocket support body 24 It is rotatable on the hub axle 14 attached to rotate around the axis of rotation A. The sprocket support body 24 has an outer perimeter area 38 on. The outer perimeter area 38 is equipped with several axially extending wedge-shaped teeth 40 The splined connections are designed to engage the bicycle chainrings in a non-rotatable manner. 40 are parallel to each other and extend parallel to the axis of rotation A. As in Fig. As can be seen in section 2, the bicycle chainrings are S on the sprocket support body 24 held by a (not shown) conventional nut that fits into the sprocket support body 24It is screwed in. The sprocket support body 24 has another outer perimeter area 42 on, which has a first spiral wedge toothing 44 has a spiral arrangement with respect to the axis of rotation A. The first spiral splined tooth 44 has a first surface 44a the sprocket support body extends spirally with respect to the axis of rotation A. As shown in the illustrated embodiment, the sprocket support body comprises 24 several of the first spiral wedge gears 44 on the outer perimeter surface 42 Each of the first spiral wedge teeth 44 includes one of the first surfaces 44a .

[0061] The outer perimeter area 42 of the sprocket support body 24 also features a guided section 46 on, which engages the first locking pawl element during rolling 26 and the second locking pawl element 27in axial direction ( D1 or D2 ) the axis of rotation A is to move away from each other. Here, each of the first helical splined teeth comprises 44 the leadership section 46 In particular, the leadership sections 46 set up to engage the first pawl element when a rolling / coasting / free-running operation occurs 26 (in the second axial direction) D2 ) to the hub housing 16 to lead to. As shown, the guided sections extend 46 in at least one circumferential direction with respect to the sprocket support body 24 . While each of the first spiral wedge gears 44 one of the leadership sections 46 It is evident from this revelation that the sprocket support body 24 only one of the guided sections 46 may be displayed if required and / or desired.

[0062] Each of the guided sections 46 has a second surface 46a on, which are relative to the axis of rotation A extending in a spiral shape, but at a shallower angle than the first surface 44a Thus, the second surface 46a arranged so that they form an obtuse angle with the first surface 44a the first spiral wedge teeth 44 defined. The leadership sections 46 are depicted in such a way that they are connected to the first spiral wedge teeth 44 are one-piece, so that the second surfaces 46a to the first surfaces 44a adjacent. The guide sections 46 However, they do not necessarily have to be part of the first spiral wedge gears. 44 be. In other words, the leadership sections can 46 from the first spiral wedge teeth 44 be spaced apart so that there is a gap between the first and second surfaces44a and 46a a small gap is provided so that the second surfaces 46a not part of the first spiral wedge gears 44 are.

[0063] The outer perimeter area 42 of the sprocket support body 24 supports the first and second locking pawl elements 26 and 27 The sprocket support body 24 includes an attack 50 , which is attached to the second locking pawl element 27 is applied to control the axial movement of the second pawl element 27 away from the hub housing 16 to limit. The first locking pawl element 26 is on an axial side of the second pawl element 27 arranged, which the attack 50 of the sprocket support body 24 opposite.

[0064] Primarily on Fig. 9 and Fig. 10. Referring to this, the first locking pawl element is 26a ring-shaped element that is concentric around the hub axis 14 is arranged. The first locking pawl element 26 has at least one first locking tooth 52 and a second spiral wedge toothing 54 on. The at least one first locking tooth 52 is on an axially facing surface of the first pawl element 26 arranged. Preferably, it comprises at least one first locking tooth. 52 , as in the illustrated embodiment, several first locking teeth 52 The second spiral wedge toothing 54 fits with the first spiral wedge toothing 44 of the sprocket support body 24 together. Preferably, the first locking pawl element comprises 26 , as in the illustrated embodiment, several second spiral wedge teeth 58 , which featured the first spiral wedge teeth 44 of the sprocket support body 24The first pawl element is engaged. 24 to rotate. In particular, the first locking pawl element 26 via the second spiral wedge toothing 54 , which during the journey with the first spiral splined tooth 44 is engaged by a first thrust force, which, when viewed along the freewheel side of the bicycle hub, 10 clockwise around the axis of rotation A is applied in the axial direction D1 regarding the sprocket support body 24 movably attached.

[0065] The second locking pawl element 27 The second locking pawl element will now be explained. 27 is a ring-shaped element that is concentric around the hub axis 14 is arranged. The second locking pawl element 27 is a ring-shaped element that is concentric around the hub axis 14is arranged and set up to engage with the hub housing 16 to turn. The second locking pawl element 27 is sandwich-like between the attack 50 of the sprocket support body 24 and the first locking pawl element 26 arranged. The second locking pawl element 27 It is also arranged in such a way that it floats in a radial direction when no thrust force is applied by the sprocket support body. 24 on the hub housing 16 is transferred. The second locking pawl element 27 It is also arranged in such a way that it floats in the axial direction to prevent imperfect meshing with the sprocket support body. 24 and the first locking pawl element 26 to prevent.

[0066] The second locking pawl element 27 has at least one second locking tooth 62 on, which has at least one first locking tooth 52fits together. At least one second locking tooth. 62 is on an axially facing surface of the second pawl element 27 arranged, which face the axially facing surface of the first pawl element 26 is facing the direction of at least one second locking tooth. 62 fits with at least one first locking tooth 52 together to generate a torque from the sprocket support body 24 on the hub housing 16 to transfer. Preferably, it comprises at least one second locking tooth. 62 , as in the illustrated embodiment, several second locking teeth 62 , which with the first interdental teeth 52 fit together. As in Fig. As can be seen in section 9, the first locking teeth are visible. 52 and the second locking teeth 62 dimensioned so that a large game P is provided in between. In this way, the first locking pawl element can 26relative to the hub housing 16 and the second locking pawl element 27 rotate so that the first locking pawl element 26 It can move axially between an engagement position and a disengaged position. In the engagement position, the second locking teeth fit. 62 with the first fangs 52 together. In the detached position, the second set of teeth are positioned. 62 not with the first fangs 52 in contact.

[0067] The second locking pawl element 27 also features a hub housing engagement section 64 on, which is connected to the hub housing 16 is engaged. The second locking pawl element 27 transmits a torque to the hub housing 16 , which is from the first locking pawl element 26 via the hub housing engagement section 64is applied. As in the illustrated embodiment, preferably one of the hub housing engagement sections comprises 64 and the hub housing 16 at least one projection extending radially, and the other from the hub housing engagement section 64 and the hub housing 16 It comprises at least one recess connected to the at least one projection. In the illustrated embodiment, the hub housing engagement section is... 64 defined by several protrusions, and the hub shell 16 includes several recesses 16d , which in Fig. Figure 10 shows how the second pawl element rotates. 27 with the hub housing 16 , but can also be axial with respect to the hub housing 16 along the axis of rotation A slide. The first pawl element 26 is between the attack 50 of the hub housing 16and the second locking pawl element 27 arranged in a sandwich-like fashion.

[0068] With regard to the Fig. 5 to Fig. 10 will now be the friction element 28 and the additional friction element 30 discussed. In the illustrated embodiment, the friction element has 28 a ring shape (ring-shaped element). The friction element 28 comprises at least one non-metallic material. In particular, the friction element comprises 28 at least one plastic / resin material. For example, the plastic / resin material of the friction element... 28 preferably exhibits some elastic, deformable, and resistant properties. For example, the friction element can 28 It must be made of an elastomeric or thermoplastic material that can withstand radial stress. The friction element 28 The illustrated embodiment includes a ring-shaped, cantilevered lip section.28a The free-standing lip section 28a During installation, it is deflected radially outwards to ensure good contact or close contact between the friction element. 28 and the first locking pawl element 26 to ensure.

[0069] How best to in the Fig. 5 and Fig. As can be seen in section 6, the friction element touches 28 a touched element 68 . Here the friction element touches 28 a friction surface 70 , which are attached to the touched element 68 is intended. In particular, the free-standing lip section touches 28a of the friction element 28 the friction surface 70 , in order to generate a frictional torque for the first pawl element during rolling 26 to apply so that the first locking teeth 52 except for contact with the second pawl teeth 62move. In particular due to the frictional torque applied by the friction element. 28 The first pawl element rotates 26 slightly in the circumferential direction into a disengaged position. In other words, due to this frictional torque exerted by the friction element. 28 When applied, the friction element rotates 28 the first locking pawl element 26 slightly in the circumferential direction with respect to the sprocket support body 24 , while the hub housing 16 continuously rotates during rolling. The slight circumferential movement of the first pawl element 26 in relation to the sprocket support body 24 is formed by the first locking pawl element 26 planned along the second area 46a the leadership sections 46 glides.

[0070] In the illustrated embodiment, as shown in the Fig. 5 and Fig. Shown in 6, is the touched element 68 integrally with the first locking pawl element 26 formed. The friction element 28 touches the first locking pawl element 26 in a radial direction of the axis of rotation A The friction element 28 is set up to align itself with the hub housing 16 and the first locking pawl element 26 to turn the friction element 28 touches in the radial direction of the axis of rotation A the touched element 68 , which is set up to connect with the other from the hub housing 16 and the first locking pawl element 26 to rotate. In particular, in the illustrated embodiment, the friction element 28 the illustrated embodiment is set up to engage with the hub housing 16 to rotate. In particular, in the illustrated embodiment, the friction element 28of the illustrated embodiment firmly attached to the second locking pawl element 27 fastened. On the other hand, the touched element rotates. 68 with the first locking pawl element 26 . . This revelation will make it obvious to the expert in the field of cycling that the bicycle hub 10 can be arranged so that the friction element 28 with the first locking pawl element 26 rotates and the touched element 68 with the hub housing 16 Rotates as needed and / or desired. Alternatively, the touched element can 68 one of the first locking pawl element 26 be a separate element. For example, the touched element 68 with the hub housing 16 be formed in one piece or permanently attached to it, so that the friction element 28 the hub housing 16 touched.

[0071] The additional friction element 30It also has a ring shape. The additional friction element 30 It can be made of either a non-metallic or a metallic material. For example, the additional friction element can be... 30 be made of a thermoplastic material. For example, the additional friction element can be 30 It must be made of a material that can withstand axial loads.

[0072] The additional friction element 30 touches an additional friction surface 72 , which are touched by an additional element 74 is provided for. In particular, in the illustrated embodiment, the additional contacted element is 74 integrally with the first locking pawl element 26 trained. The additional friction element 30 touches the first locking pawl element 26 on the additional friction surface 72 The additional friction surface 72differs from the friction surface 70 In particular, the friction surface 70 and the additional friction surface 72 different directions on the first locking pawl element 26 on. As shown, the friction surface 70 in relation to the axis of rotation A facing the radial direction, while the additional friction surface 72 in relation to the axis of rotation A facing the axial direction. The additional friction element 30 is set up to interact with one of the hub housings 16 and the first locking pawl element 26 to rotate while the additional touched element 74 is set up to align itself with the other from the hub housing 16 and the first locking pawl element 26 to rotate. In the illustrated embodiment, the additional friction element rotates. 30 with the hub housing 16 and the additional touched element74 rotates with the first pawl element 26 However, experts in the cycling field will find it obvious from this revelation that the bicycle hub 10 Depending on requirements and / or wishes, it can be arranged so that the additional friction element 30 with the first locking pawl element 26 rotates while the additional touched element rotates 74 with the hub housing 16 turns.

[0073] The bicycle hub 12 also includes a comprehensive spacer 76 and an axial spacer 78 The spacer 76 is between the hub housing 16 and the second locking pawl element 27 arranged to fill the circumferential space between the hub housing engagement section 64 of the second locking pawl element 27 and the recesses 16d of the hub housing 16 to record. The spacer 78is between the hub housing 16 and the sprocket support body 24 arranged.

[0074] In the illustrated embodiment, the preload element 34 a lead 34a on, which is in a recess of the hub housing 16 is arranged so that the prestressing element 34 together with the hub housing 16 rotates. When the sprocket support body 24 When in a detent position (i.e., no torque is applied to it), the preload element holds 34 the first canine teeth 52 of the first locking pawl element 26 in drive engagement with the second locking teeth 62 of the second locking pawl element 27 In particular, the additional friction element 30 axially against the additional friction surface 72 of the additional touched element 74 pressed, which is part of the first locking pawl element 26is. If a rolling torque is applied to the sprocket support body 24 When the lever is pulled, the first pawl element rotates. 26 slightly in a circumferential direction and slides due to the frictional torque between the additional friction element 30 and the first locking pawl element 26 along the second surfaces 46a the leadership sections 46 , so that the first interdental teeth erupt 52 except for contact with the second locking teeth 62 move.

[0075] During rolling, the first locking pawl element engages 26 due to the frictional torque between the additional friction element 30 and the first locking pawl element 26 constantly exerts a force in the axial direction D2 to the hub housing 16 up to engage the first pawl teeth 52 from the second set of teeth 62to separate. As a result, the hub housing rotates during rolling. 16 , the prestressing element 34 , the second set of teeth 62 of the second locking pawl element 27 together relative to the first pawl element 26 , wherein a sliding contact between the first pawl element 26 and the additional friction element 30 occurs.

[0076] In particular, each of the guided sections 46 designed to provide a combing action between at least one first locking tooth during rolling 52 and at least one second locking tooth 62 to lift. The first locking pawl element 26 touches the guide sections during rolling 46 and is achieved through a second thrust force, which is generated by a frictional torque between the preloading element 34 and the first locking pawl element 26is caused by the second locking pawl element 27 Out of engagement. The first spiral wedge teeth. 54 of the first locking pawl element 26 The sliding torque affects the second surfaces 46a the leadership sections 46 of the sprocket support body 24 Then a rolling shear force occurs, causing the first pawl element to engage. 26 against the force of the preload element 34 in the axial direction D2 to the hub housing 16 moved. As a result, the first locking teeth touch. 52 of the first locking pawl element 26 The second locking teeth should not engage during rolling. 62 of the second locking pawl element 27 .

[0077] If the sprocket support body is damaged during driving 24 When rotated in the drive direction, the second spiral wedge tooth slides. 54of the first locking pawl element 26 axially along the first surfaces 44a the first spiral wedge teeth 44 on the outer perimeter surface 42 of the sprocket support body 24 in the axial direction D1 the bicycle hub 10 The first locking pawl element 26 is through the pre-tensioning element 34 in the axial direction D1 the bicycle hub 10 to the second locking pawl element 27 pre-tensioned. When the torque is applied to the sprocket support body 24 When applied, the first locking teeth comb through. 52 of the first locking pawl element 26 and the second locking teeth 62 of the second locking pawl element 27 so that the hub housing 16 with the sprocket support body 24rotates. As the drive torque increases, the meshing engagement between the first pawl element is thus increased. 26 and the second locking pawl element 27 stronger.

[0078] Referring to the Fig. 11 and Fig. 12 now has a modified sprocket support body 124 discussed, the one with the bicycle hub 10 can be used. In other words, the bicycle hub can 10 so that they can be modified to fit the modified sprocket support body 124 instead of the sprocket support body 24 includes. Due to the similarity between the modified sprocket support body 124 and the sprocket support body 24 corresponding structures are obtained between the modified sprocket support body. 124 and the sprocket support body 24, which are identical, have the same reference numbers. Corresponding structures that have been modified receive the same reference numbers, but are modified by 100 increased.

[0079] Similar to the sprocket support body 24 The sprocket support body includes 124 the outer perimeter area 38 with the axially extending wedge teeth 40 and the attack 50 , which is attached to the second locking pawl element 27 is applied to control the axial movement of the second pawl element 27 away from the hub housing 16 to limit. The sprocket support body 124 has another outer perimeter area 142 on, which features several modified first spiral wedge teeth 144 with modified guide sections 146 and several additional spiral wedge teeth 148 features the modified first helical wedge toothing. 144and the additional spiral wedge teeth 148 are arranged alternately with respect to each other and are spirally arranged with respect to the axis of rotation A. The modified sprocket support body 124 with the exception of the modified guide section 146 , the modified guide sections 146 and the additional spiral wedge teeth 148 identical to the sprocket support body 24 . While each of the modified first helical splined gears 144 one of the modified guide sections 146 As this disclosure includes, it is evident that the modified sprocket support body 124 If necessary and / or desired, only one of the modified guide sections. 146 can exhibit.

[0080] In particular, each of the modified guide sections includes 146 a flat surface 146a and an inclined surface146b The flat surface 146a extends perpendicular to the first surface 144a of the sprocket support body 124 As shown, the flat surface is also 146a perpendicular to the axial direction of the axis of rotation A formed. The inclined surface 146b extends from the flat surface 146a such that the inclined surface 146b with regard to the flat surface 146a is inclined. Consequently, the inclined surface is 146b with respect to the axial direction of the axis of rotation A inclined. The flat surface 146a forms an obtuse angle with respect to a first surface 144a the spiral wedge toothing 144 similar to the first embodiment. The flat surface 146a and the inclined surface 146bThese help to minimize the ratcheting noise during rolling. The flat surface holds the surface during rolling. 146a the first locking pawl element 26 and the second locking pawl element 27 in the axial direction of the axis of rotation A apart. In other words, the flat surface 146a helps to maintain the minimization of ratchet noise while rolling.

[0081] In the illustrated embodiment, the guide section 146 not on the other spiral wedge teeth 148 provided for. However, it is clear to the expert in the field of bicycles from this disclosure that the additional spiral splined toothing 148 Depending on need and / or preference, a guided tour section 146 can exhibit.

[0082] For the purposes of understanding the scope of protection of the present invention, the foregoing also applies to words with similar meanings, such as the expressions "comprising," "comprising," and their derivatives. Furthermore, the expressions "part," "section," or "element," when used in the singular, can have the dual meaning of a single part or a plurality of parts.

[0083] As used herein, the following directional terms, "frame-facing side," "frame-non-facing side," "forward," "backward," "front," "backward," "up," "down," "above," "below," "upwards," "downwards," "top," "bottom," "sideways," "vertical," "horizontal," "at right angles," and "across," as well as all other similar directional terms, refer to those directions of a bicycle in an upright riding position and fitted with the bicycle hub. Accordingly, these directional expressions, as used to describe the bicycle hub, should be interpreted relative to a bicycle in an upright riding position on a horizontal surface and fitted with the bicycle hub. The terms "left" and "right" are used to denote "right" when referring to the right side of the bicycle as viewed from behind, and "left" when referring to the left side of the bicycle as viewed from behind.

[0084] It will also be understood that the terms "first" and "second," although used here to describe different components, are not intended to limit the components described. These terms are used only to distinguish one component from another. For example, a first component, as described above, could therefore also be called a second component and vice versa, without departing from the teaching of the present invention. The term "attached" or "fastening," as used here, includes embodiments in which an element is directly secured to another element by attaching the element directly to the other element; as well as embodiments in which the element is indirectly secured to the other element by fixing the element to an intermediate member orThe definition includes intermediate links, which are in turn fixed to the other element; and finally, configurations in which one element is integral with another, i.e., one element is essentially a part of the other. This definition also applies to words of similar meaning, such as "joined," "connected," "coupled," "assembled," "bonded," "fixed," and their derivatives. Finally, terms of a degree, such as "essentially," "approximately," or "approximately," as used here, will indicate a degree of deviation from the modified concept such that the end result is not significantly altered.

[0085] While only selected embodiments are chosen to describe and illustrate the present invention, it will be clear to those skilled in the art from the disclosure that various changes and modifications can be made without departing from the scope of the invention as defined by the appended claims. For example, the size, shape, location, or orientation of various components can be changed as needed and / or desired, provided that the changes do not substantially impair their intended functions. Unless expressly stated otherwise, components shown to be directly connected or in contact with one another may also have intermediate structures between them, provided that the changes do not substantially impair their intended function.Unless expressly stated otherwise, components that are directly connected or in contact with each other may have intermediate structures, provided that the modifications do not substantially affect their intended function. The functions of one element may be performed by two elements and vice versa, unless expressly stated otherwise. The structures and functions of one embodiment may be adopted in another embodiment. It is not necessary for all advantages to be present simultaneously in a particular embodiment. Any feature that is unique with respect to the prior art, alone or in combination with other features, shall also be considered a separate description of a further invention by the applicant, including the structural and / or functional concepts embodied by such features.The preceding descriptions of embodiments according to the present invention are provided for illustrative purposes only and therefore not for the purpose of limiting the invention as defined by the attached claims and their equivalents. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] US 15 / 869783

[0001]

Claims

[1] Bicycle hub, comprising: a hub axle that defines an axis of rotation; a hub housing that is rotatably attached to the hub axle in order to rotate around the axis of rotation; a sprocket support body rotatably mounted on the hub axle to rotate about the axis of rotation, the sprocket support body having an outer circumferential surface; a first pawl element having at least one first locking tooth, wherein the first pawl element is configured to rotate with the sprocket support body; a second pawl element having at least one second locking tooth which meshes with the at least one first locking tooth, wherein the second pawl element is configured to rotate with the hub housing; and a friction element arranged to rotate with one of the hub housing and the first pawl element, wherein the friction element contacts in a radial direction of the axis of rotation a contacted element arranged to rotate with the other of the hub housing and the first pawl element, wherein the friction element is an annular shape, wherein the outer circumferential surface of the sprocket support body has a guide section which is designed to move the first pawl element and the second pawl element relative to each other in an axial direction of the axis of rotation during rolling. [2] Bicycle hub, comprising: a hub axle that defines an axis of rotation; a hub housing that is rotatably attached to the hub axle in order to rotate around the axis of rotation; a sprocket support body rotatably mounted on the hub axle to rotate about the axis of rotation, the sprocket support body having an outer circumferential surface; a first pawl element having at least one first locking tooth, wherein the first pawl element is configured to rotate with the sprocket support body; a second pawl element having at least one second locking tooth which meshes with the at least one first locking tooth, wherein the second pawl element is configured to rotate with the hub housing; and a friction element arranged to rotate with one of the hub housing and the first pawl element, wherein the friction element contacts in a radial direction of the axis of rotation a contacted element arranged to rotate with the other of the hub housing and the first pawl element, wherein the friction element comprises at least one non-metallic material, wherein the outer circumferential surface of the sprocket support body has a guide section which is designed to move the first pawl element and the second pawl element relative to each other in an axial direction of the axis of rotation during rolling. [3] Bicycle hub, comprising: a hub axle that defines an axis of rotation; a hub housing that is rotatably attached to the hub axle in order to rotate around the axis of rotation; a sprocket support body rotatably mounted on the hub axle to rotate about the axis of rotation, the sprocket support body having an outer circumferential surface; a first pawl element having at least one first locking tooth, wherein the first pawl element is configured to rotate with the sprocket support body; a second pawl element having at least one second locking tooth which meshes with the at least one first locking tooth, wherein the second pawl element is configured to rotate with the hub housing; and a friction element configured to rotate with one of the hub housing and the first pawl element, wherein the friction element contacts a contacted element in a radial direction of the axis of rotation, which is configured to rotate with the other of the hub housing and the first pawl element, and a preloading element arranged between the hub housing and the first pawl element, wherein the preloading element preloads the first pawl element in an axial direction of the axis of rotation; wherein the outer circumferential surface of the sprocket support body has a guide section which is designed to move the first pawl element and the second pawl element relative to each other in an axial direction of the axis of rotation during rolling. [4] Bicycle hub, comprising: a hub axle that defines an axis of rotation; a hub housing that is rotatably attached to the hub axle in order to rotate around the axis of rotation; a sprocket support body rotatably mounted on the hub axle to rotate about the axis of rotation, the sprocket support body having an outer circumferential surface; a first pawl element having at least one first locking tooth, wherein the first pawl element is configured to rotate with the sprocket support body; a second pawl element having at least one second locking tooth which meshes with the at least one first locking tooth, wherein the second pawl element is configured to rotate with the hub housing; and a friction element arranged to rotate with the hub housing, wherein the friction element contacts the first pawl element in a radial direction of the axis of rotation, wherein the outer circumferential surface of the sprocket support body has a guide section which is designed to move the first pawl element and the second pawl element relative to each other in an axial direction of the axis of rotation during rolling. [5] Bicycle hub, comprising: a hub axle that defines an axis of rotation; a hub housing that is rotatably attached to the hub axle in order to rotate around the axis of rotation; a sprocket support body rotatably mounted on the hub axle to rotate about the axis of rotation, the sprocket support body having an outer circumferential surface; a first pawl element having at least one first locking tooth, wherein the first pawl element is configured to rotate with the sprocket support body; a second pawl element having at least one second locking tooth which engages with the at least one first locking tooth, wherein the second pawl element is arranged to rotate with the hub housing; a friction element arranged to rotate with the hub housing and the first pawl element, wherein the friction element contacts a friction surface provided on a contacted element, the contacted element being arranged to rotate with the other element from the hub housing and the first pawl element; and an additional friction element which is arranged to rotate with one of the hub housing and the first pawl element, wherein the additional friction element contacts an additional friction surface which is provided on an additional contacted element, wherein the additional contacted element is arranged to rotate with the other of the hub housing and the first pawl element, wherein the additional friction surface is different from the friction surface. wherein the outer circumferential surface of the sprocket support body has a guide section which is designed to move the first pawl element and the second pawl element relative to each other in an axial direction of the axis of rotation during rolling. [6] Bicycle hub according to one of claims 1 to 5, wherein the guide section extends in at least one circumferential direction with respect to the chain wheel support body. [7] Bicycle hub according to claim 6, wherein the guide section comprises a flat surface which is formed perpendicular to an axial direction of the axis of rotation. [8] Bicycle hub according to claim 7, wherein the guide section has an inclined surface with respect to the axial direction of the axis of rotation. [9] Bicycle hub according to one of claims 1 to 8, wherein the guide section guides the first pawl element towards the hub housing during rolling. [10] Bicycle hub according to any one of claims 1 to 9, wherein which at least one first locking tooth is arranged on an axially facing surface of the first pawl element and where at least one second locking tooth is arranged on an axially facing surface of the second pawl element, which faces the axially facing surface of the first pawl element. [11] Bicycle hub according to any one of claims 1 to 10, wherein the outer circumferential surface of the sprocket support body has a first helical wedge toothing, and the first pawl element has a second helical spline that engages with the first helical spline, wherein the first pawl element is movably fixed in the axial direction with respect to the sprocket support body during travel by means of a thrust force applied by the sprocket support body via the second helical spline in engagement with the first helical spline. [12] Bicycle hub according to claim 11, wherein the sprocket support body includes several of the first spiral splined teeth on the outer circumferential surface and the first pawl element comprises several of the second spiral wedge teeth, which are in meshing engagement with the first spiral wedge teeth of the sprocket support body. [13] Bicycle hub according to one of claims 1 to 12, wherein the first and the second pawl element are ring-shaped elements. [14] Bicycle hub according to any one of claims 1 to 13, wherein the second pawl element has a hub housing engagement section that engages with the hub housing, and one of the hub housing engagement section and the hub housing comprises at least one projection extending radially, and the other of the hub housing engagement section and the hub housing comprises at least one recess which engages with the at least one projection. [15] Bicycle hub according to one of claims 1 to 14, further comprising a preloading element arranged between the hub housing and the first pawl element, wherein the preloading element preloads the first pawl element in the axial direction towards the second pawl element. [16] Bicycle hub according to claim 15, wherein the preload element is set up to rotate with the hub housing, and The first pawl element touches the guide section during rolling and is disengaged from the second pawl element by a thrust force caused by a frictional torque between the preload element and the first pawl element. [17] Bicycle hub according to one of claims 1 to 16, further comprising at least one bearing arrangement which rotatably supports the chain wheel support body on the hub axle. [18] Bicycle hub according to one of claims 1 to 17, further comprising at least one bearing arrangement which rotatably supports the hub housing on the hub axle. [19] Bicycle hub according to any one of claims 1 to 18, wherein which includes at least one first canine tooth and several first canines. which includes at least one second locking tooth and several second locking teeth. [20] Bicycle hub according to any one of claims 1 to 19, wherein the sprocket support body includes a stop that rests against the second pawl element to limit the axial movement of the second pawl element away from the hub housing, and the first pawl element is arranged on an axial side of the second pawl element that is opposite the stop of the sprocket support body. [21] Bicycle hub according to any one of claims 1 to 20, wherein the hub housing includes an interior space, the outer circumferential surface of the sprocket support body supports the first and second pawl elements, and the first and second pawl elements are at least partially located inside the hub housing. [22] Bicycle hub according to one of claims 1 to 21, wherein the friction element comprises at least a plastic / resin material which contacts the first pawl element in the radial direction of the axis of rotation.