HUB ASSEMBLY AND WHEEL

Abstract

A hub assembly 10 comprises a hub axle 12, a hub body 14, a pinion carrier body 16, a one-way clutch 24, and a transmission body 26. The hub body 14 is rotatable relative to the hub axle 12 about a rotational axis A1. The pinion carrier body 16 is rotatable relative to the hub axle 12 about the rotational axis A1. The transmission body 26 is positioned between the pinion carrier body 16 and the one-way clutch 24 to transmit rotational force from the pinion carrier body 16 to the one-way clutch 24. The transmission body 26 is a separate element from the pinion carrier body 16. The transmission body 26 includes an outer periphery 26A configured to engage with an inner periphery 16A of the pinion carrier body 16.

Description

[0001] The present invention relates to a hub assembly and a wheel.

[0002] A human-powered vehicle includes a wheel with a hub assembly. A pinion assembly is mounted on a rotatable element of the hub assembly. One of the objectives of the present invention is to improve the design flexibility of the rotatable element. Another objective of the present invention is to improve the durability of the rotatable element. A further objective of the present invention is to enable the transmission or interruption of the rotational force between the rotatable element and a hub body.

[0003] According to a first aspect of the present invention, a hub assembly comprises a hub axle, a hub body, a pinion carrier body, a one-way coupling, and a transmission body. The hub body is rotatable about an axis of rotation relative to the hub axle. The pinion carrier body is rotatable about the axis of rotation relative to the hub axle. The pinion carrier body includes external teeth and an inner periphery. The external teeth are configured to engage with internal teeth of a pinion assembly of a human-powered vehicle. The one-way coupling is configured to restrict rotation of the pinion carrier body relative to the hub body in a first direction of rotation. The one-way coupling is configured to allow rotation of the pinion carrier body relative to the hub body in a second direction of rotation, which is opposite to the first direction of rotation.The transmission element is positioned between the pinion carrier body and the one-way clutch to transmit rotational force from the pinion carrier body to the one-way clutch. The transmission element is a separate component from the pinion carrier body. It includes an outer periphery designed to engage with the inner periphery of the pinion carrier body.

[0004] In the hub assembly according to the first aspect, the transmission body is a separate element from the pinion carrier body, and the outer periphery of the transmission body is designed to engage with the inner periphery of the pinion carrier body. This allows for improved design flexibility of both the pinion carrier body and the transmission body, while the rotational force is transmitted from the pinion carrier body via the transmission body to the one-way coupling.

[0005] According to a second aspect of the present invention, the hub assembly according to the first aspect is designed such that the pinion carrier body is made of a first material. The transmission body is made of a second material. The first material has a greater hardness than the second material. In the hub assembly according to the second aspect, the first material improves the durability of the pinion carrier body, while the second material facilitates the manufacture of the transmission body.

[0006] According to a third aspect of the present invention, a hub assembly comprises a hub axle, a hub body, a pinion carrier body, a one-way coupling, and a transmission body. The hub body is rotatable about an axis of rotation relative to the hub axle. The pinion carrier body is rotatable about the axis of rotation relative to the hub axle. The pinion carrier body includes external teeth configured to engage with internal teeth of a pinion assembly of a human-powered vehicle. The pinion carrier body is made of a first material. The one-way coupling is configured to restrict rotation of the pinion carrier body relative to the hub body in a first direction of rotation. The one-way coupling is configured to allow rotation of the pinion carrier body relative to the hub body in a second direction of rotation opposite to the first direction of rotation.The transmission element is positioned between the pinion carrier body and the one-way clutch to transfer rotational force from the pinion carrier body to the one-way clutch. The transmission element is made of a second material. The first material has a greater hardness than the second material.

[0007] In the hub assembly according to the third aspect, the first material improves the durability of the sprocket carrier body, while the second material facilitates the manufacture of the transmission body.

[0008] According to a fourth aspect of the present invention, the hub assembly according to one of the first to third aspects is configured such that the one-way coupling includes a first pawl element and a second pawl element. The first pawl element is coupled to the transmission body to rotate together with the transmission body relative to the hub body. The second pawl element is coupled to the hub body to rotate together with the hub body relative to the transmission body. In the hub assembly according to the fourth aspect, the first pawl element and the second pawl element enable the transmission or interruption of the rotational force between the transmission body and the hub body.

[0009] According to a fifth aspect of the present invention, a hub assembly comprises a hub axle, a hub body, a pinion carrier body, a one-way coupling, and a transmission body. The hub body is rotatable about an axis of rotation relative to the hub axle. The pinion carrier body is rotatable about the axis of rotation relative to the hub axle. The pinion carrier body includes external teeth configured to engage with internal teeth of a pinion assembly of a human-powered vehicle. The one-way coupling is configured to restrict rotation of the pinion carrier body relative to the hub body in a first direction of rotation. The one-way coupling is configured to allow rotation of the pinion carrier body relative to the hub body in a second direction of rotation opposite to the first direction of rotation.The transmission body is positioned between the pinion carrier body and the one-way clutch to transmit rotational force from the pinion carrier body to the one-way clutch. The one-way clutch comprises a first pawl element and a second pawl element. The first pawl element is coupled to the transmission body to rotate with the transmission body relative to the hub body. The second pawl element is coupled to the hub body to rotate with the hub body relative to the transmission body.

[0010] In the hub assembly according to the fifth aspect, the first pawl element and the second pawl element enable the transmission or interruption of the rotational force between the transmission body and the hub body.

[0011] According to a sixth aspect of the present invention, the hub assembly according to the fourth or fifth aspect is configured such that the transmission body includes helical teeth configured to engage with the first pawl element in order to movably support the first pawl element in an axial direction in response to a relative rotation between the transmission body and the first pawl element. The axial direction is defined along the axis of rotation. In the hub assembly according to the sixth aspect, the helical teeth enable the first pawl element to be moved in the axial direction relative to the transmission body in response to the relative rotation between the transmission body and the first pawl element.

[0012] According to a seventh aspect of the present invention, the hub assembly according to one of the first to sixth aspects is designed such that the pinion carrier body includes a tubular section extending circumferentially around the axis of rotation. The external toothing includes at least one external tooth that projects radially outward from the tubular section to engage with the internal toothing of the pinion assembly. In the hub assembly according to the seventh aspect, the tubular section improves the stiffness of the pinion carrier body.

[0013] According to an eighth aspect of the present invention, the hub assembly according to one of the first to seventh aspects is configured such that the outer periphery of the transmission body includes a first toothing which is configured not to engage with the internal toothing of the pinion assembly. The inner periphery of the pinion carrier body includes a second toothing which is configured to engage with the first toothing. In the hub assembly according to the eighth aspect, the first toothing and the second toothing enable the transmission of the rotational force between the pinion carrier body and the transmission body.

[0014] According to a ninth aspect of the present invention, the hub assembly according to the eighth aspect is configured such that the first toothing includes at least one first tooth. The at least one first tooth includes a first contact surface and a first inclined surface. The first contact surface can be brought into contact with the second toothing to absorb a rotational force from the pinion carrier body. The first inclined surface is inclined relative to the first contact surface. The first inclined surface extends away from the first contact surface to reduce a defined distance between the axis of rotation and the first inclined surface. In the hub assembly according to the ninth aspect, the first inclined surface increases the circumferential width of the at least one first toothing, thereby improving the strength of the at least one first toothing.

[0015] According to a tenth aspect of the present invention, the hub assembly according to one of the first to seventh aspects is configured such that the outer periphery of the transmission body includes a first external threaded section. The inner periphery of the pinion carrier body includes a second internal threaded section configured to engage with the first external threaded section. With the hub assembly according to the tenth aspect, it is possible to simplify the structures of the outer and inner peripheries.

[0016] According to an eleventh aspect of the present invention, the hub assembly according to one of the first to tenth aspects further comprises a coupling element configured to couple the pinion carrier body and the transmission body. The hub assembly according to the eleventh aspect enables reliable coupling of the pinion carrier body and the transmission body.

[0017] According to a twelfth aspect of the present invention, the hub assembly according to the eleventh aspect is designed such that the coupling element is configured to engage with the transmission body. With the hub assembly according to the twelfth aspect, it is possible to couple the pinion carrier body and the transmission body more reliably.

[0018] According to a thirteenth aspect of the present invention, the hub assembly according to the eleventh or twelfth aspect is designed such that the coupling element is configured to engage in threaded engagement with the transmission body. With the hub assembly according to the thirteenth aspect, it is possible to couple the pinion carrier body and the transmission body more reliably.

[0019] According to a fourteenth aspect of the present invention, the hub assembly according to one of the eleventh to thirteenth aspects is configured such that the coupling element has a positioning surface designed to position the pinion carrier body relative to the transmission body in an axial direction in a coupling state in which the coupling element couples the pinion carrier body and the transmission body. The axial direction is defined along the axis of rotation. With the hub assembly according to the fourteenth aspect, it is possible to couple the pinion carrier body and the transmission body more reliably.

[0020] According to a fifteenth aspect of the present invention, the hub assembly according to the fourteenth aspect further comprises an intermediate element which, in the coupled state, is provided in the axial direction between the pinion carrier body and the positioning surface of the coupling element. In the hub assembly according to the fifteenth aspect, the intermediate element reduces the surface pressure between the pinion carrier body and the coupling element. In this way, the durability of at least one of the pinion carrier body and the coupling element can be improved.

[0021] According to a sixteenth aspect of the present invention, the hub assembly according to one of the eleventh to fifteenth aspects is configured such that the coupling element is configured to contact a first bearing, which is configured to rotatably mount the coupling element relative to the hub axis. With the hub assembly according to the sixteenth aspect, it is possible to rotatably mount the pinion carrier body with the coupling element and the first bearing.

[0022] According to a seventeenth aspect of the present invention, the hub assembly according to one of the eleventh to sixteenth aspects further comprises a stopper configured to position the pinion carrier body, the transmission body, and the coupling element relative to the hub axis in an axial direction defined along the axis of rotation. The first sealing element is provided between the stopper and at least one of the pinion carrier body and the coupling element to prevent a foreign body from entering a space provided between the coupling element and the stopper. In the hub assembly according to the seventeenth aspect, the first sealing element can prevent the foreign body from entering the space between the coupling element and the stopper.

[0023] According to an eighteenth aspect of the present invention, the hub assembly according to one of the first to seventeenth aspects further comprises a second sealing element provided between the hub body and the transmission body to prevent a foreign body from entering a space provided between the hub body and the transmission body. In the hub assembly according to the eighteenth aspect, the second sealing element can prevent the ingress of a foreign body into the space between the hub body and the transmission body.

[0024] According to a nineteenth aspect of the present invention, the hub assembly according to one of the first to eighteenth aspects is configured such that the transmission body is configured to contact a second bearing, which is configured to rotatably mount the transmission body relative to the hub axis. With the hub assembly according to the nineteenth aspect, it is possible to rotatably mount the pinion carrier body with the transmission body and the second bearing.

[0025] According to a twentieth aspect of the present invention, a wheel comprises the hub assembly according to one of the first to nineteenth aspects.

[0026] In the wheel according to aspect 20, the transmission body is a separate element from the pinion carrier body, and the outer periphery of the transmission body is designed to engage with the inner periphery of the pinion carrier body. This allows for improved design flexibility of both the pinion carrier body and the transmission body, while the rotational force is transmitted from the pinion carrier body, via the transmission body, to the one-way clutch.

[0027] A more complete understanding of the invention and its many associated advantages will easily be achieved by referring to the following detailed description in conjunction with the accompanying drawings, wherein: Fig. 1 a side view of a human-powered vehicle with a wheel incorporating a hub assembly according to one of the embodiments; Fig. 2 a perspective view of the in Fig. The hub assembly shown in 1 is; Fig. 3 a cross-sectional view of the hub assembly along line III-III of Fig. 2 is; Fig. 4 a partial cross-sectional view of the hub assembly along line IV-IV of Fig. 2 is; Fig. 5 a cross-sectional view of the hub assembly along line VV of Fig. 4 is; Fig. 6 a perspective exploded view of part of the in Fig. The hub assembly shown in 1 is; Fig. 7 another perspective exploded view of part of the in Fig. The hub assembly shown in 1 is; Fig. 8 a partial cross-sectional view of the hub assembly along line IV-IV of Fig. 4 is; Fig. 9 a partial cross-sectional view of the hub assembly along line IX-IX of Fig. 2 is; Fig. 10 a perspective exploded view of part of the in Fig. The hub assembly shown in 1 is; Fig. 11 a partial cross-sectional view of the hub assembly along line XI-XI of Fig. 4 is; Fig. 12 a perspective exploded view of part of the in Fig. The hub assembly shown in 1 is; Fig. 13 a perspective exploded view of part of the in Fig. The hub assembly shown in 1 is; Fig. 14 is a schematic diagram showing the effect of a first pawl element and a pinion carrier body of the in Fig. 1 shows the hub assembly (pedaling); Fig. 15 is a schematic diagram showing the effect of a first pawl element and a pinion carrier body of the in Fig. The hub assembly shown in section 1 is in neutral; and Fig. 16 is a partial cross-sectional view of a hub assembly according to a modification.

[0028] The embodiments are now described with reference to the accompanying drawings, in which the same reference numerals denote corresponding or identical elements in the different drawings.

[0029] As in the Fig. 1 and Fig. As shown in Figure 2, a human-powered vehicle 2 includes a wheel 4. The wheel 4 comprises a hub assembly 10. The hub assembly 10 includes a hub axle 12, a hub body 14, and a pinion carrier body 16. The hub axle 12 has an axis of rotation A1. The hub axle 12 extends along the axis of rotation A1. The hub body 14 is rotatable relative to the hub axle 12 about the axis of rotation A1. The hub body 14 is rotatably mounted on the hub axle 12 to rotate about the axis of rotation A1. The pinion carrier body 16 is rotatable relative to the hub axle 12 about the axis of rotation A1. The pinion carrier body 16 is rotatably mounted on the hub axle 12 to rotate about the axis of rotation A1. The hub body 14 is configured to be coupled to at least two spokes 5 of the wheel 4. The hub body 14 is coupled to a rim of the wheel 4 by at least two spokes 5.

[0030] In this application, the term "human-powered vehicle" encompasses a vehicle that moves using a propulsive force that includes at least the human power of a user operating the vehicle. Human-powered vehicles include various types of bicycles, such as mountain bikes, racing bikes, city bikes, cargo bikes, handcycles, and recumbent bikes. Furthermore, human-powered vehicles also include electric bicycles, also known as e-bikes. An e-bike is an electrically assisted bicycle designed to assist the propulsion of a vehicle with an electric motor. However, the total number of wheels on a human-powered vehicle is not limited to two. For example, a human-powered vehicle may have one wheel, or three or more.In particular, a human-powered vehicle does not include a vehicle that uses only one power source. Examples of such a power source are an internal combustion engine and an electric motor. Generally, a light road vehicle that does not require a driver's license for use on public roads is considered a human-powered vehicle.

[0031] In this application, the following directional terms, “front,” “back,” “forward,” “backward,” “left,” “right,” “across,” “upward,” and “downward,” as well as all other similar directional terms, refer to directions determined based on the user being in the standard user position in the human-propelled vehicle 2, facing a handlebar or steering mechanism. Examples of the standard user position are a saddle and a seat. Accordingly, these terms, when used to describe the hub assembly 10 or other components, are to be interpreted in relation to the human-propelled vehicle 2 equipped with the hub assembly 10 or other components, being used in an upright riding position on a horizontal surface.

[0032] As in Fig. As can be seen in Figure 1, the hub axle 12 is designed to be attached to a vehicle body 6 of the human-powered vehicle 2 by means of a hub mounting structure. The pinion carrier body 16 is designed to support a pinion assembly 8 with at least one pinion. The pinion carrier body 16 is coupled to the pinion assembly 8 in order to rotate together with the pinion assembly 8 about the axis of rotation A1.

[0033] The pinion carrier body 16 includes an external toothing 18. The external toothing 18 is configured to engage with an internal toothing of the pinion assembly 8 of the human-powered vehicle 2. The external toothing 18 includes at least one external tooth 18A. This at least one external tooth 18A is configured to engage with at least one internal tooth of the internal toothing of the pinion assembly 8. In the present embodiment, the external toothing 18 includes at least two external teeth 18A. These at least two external teeth 18A are configured to engage with at least two internal teeth of the internal toothing of the pinion assembly 8.

[0034] An axial median plane CP is defined such that it bisects an axial length AL of the hub assembly 10 in an axial direction D1. The axial direction D1 is defined along the axis of rotation A1. The axial median plane CP is perpendicular to the axis of rotation A1.

[0035] The hub assembly 10 includes a locking element 19. The locking element 19 is designed to be coupled to the pinion carrier body 16 in order to fasten the pinion assembly 8 to the pinion carrier body 16. The locking element 19 is designed to engage threadedly with the pinion carrier body 16.

[0036] As in Fig. As shown in Figure 3, the hub assembly 10 comprises a first hub bearing 20. The first hub bearing 20 is radially positioned between the hub axle 12 and the hub body 14. The first hub bearing 20 is designed to mount the hub body 14 rotatably about the axis of rotation A1 relative to the hub axle 12.

[0037] The hub assembly 10 includes a second hub bearing 22. The second hub bearing 22 is radially positioned between the hub axle 12 and the hub body 14. The second hub bearing 22 is designed to mount the hub body 14 rotatably about the axis of rotation A1 relative to the hub axle 12.

[0038] As in Fig. As can be seen in Figure 3, the hub assembly 10 includes a one-way coupling 24. The one-way coupling 24 is designed to restrict rotation of the pinion carrier body 16 relative to the hub body 14 in a first rotational direction D31 (see, for example, Figure 3). Fig. 2) As in Fig. As can be seen in Figure 2, a rotational force F1, for example a pedaling torque, is transferred from the sprocket carrier body 16 to the hub body 14 in the first rotational direction D31 when the sprocket carrier body 16 absorbs the rotational force F1 in the first rotational direction D31.

[0039] As in Fig. As can be seen in Figure 3, the one-way coupling 24 is designed, a rotation of the pinion carrier body 16 relative to the hub body 14 in a second rotational direction D32 (see, for example, Figure 3). Fig. 2), which is in the opposite direction to the first direction of rotation D31. The one-way clutch 24 is designed to allow rotation of the hub body 14 relative to the pinion carrier body 16 about the axis of rotation A1 in the first direction of rotation D31 during a neutral position (see, for example, Figure 2). Fig. 2).

[0040] As in Fig. As shown in Figure 4, the hub assembly 10 comprises a transmission body 26. The transmission body 26 is positioned between the pinion carrier body 16 and the one-way coupling 24 to transmit the rotational force F1 (see, for example, Figure 4). Fig. 2) to transfer from the pinion carrier body 16 to the one-way coupling 24. The transmission body 26 is a separate element from the pinion carrier body 16.

[0041] The pinion carrier body 16 includes an inner periphery 16A. The transmission body 26 includes an outer periphery 26A, which is configured to engage with the inner periphery 16A of the pinion carrier body 16. The transmission body 26 is coupled to the pinion carrier body 16 via the inner periphery 16A and the outer periphery 26A, enabling it to rotate together with the pinion carrier body 16 about the axis of rotation A1 relative to the hub axis 12.

[0042] The transmission body 26 comprises a tubular section 26D and a flanged section 26F. The tubular section 26D extends from the flanged section 26F in the axial direction D1. The outer periphery 26A is provided on the tubular section 26D.

[0043] As in Fig. As can be seen in Figure 5, the outer periphery 26A of the transmission body 26 includes a first toothing 28. The first toothing 28 is designed not to engage with the internal toothing of the pinion assembly 8 (see, for example, Figure 5). Fig. 4) The inner periphery 16A of the pinion carrier body 16 includes a second toothing 30. The second toothing 30 is designed to engage with the first toothing 28.

[0044] The first tooth arrangement 28 includes at least one first tooth 28A. In the present embodiment, the first tooth arrangement 28 includes at least two first teeth 28A. The at least two first teeth 28A are arranged in a circumferential direction D2 defined about the axis of rotation A1.

[0045] The second tooth arrangement 30 includes at least one second tooth 30A. The at least one second tooth 30A is configured to mesh with the at least one first tooth 28A. In the present embodiment, the second tooth arrangement 30 includes at least two second teeth 30A. The at least two second teeth 30A are arranged in the circumferential direction D2. The at least two second teeth 30A are configured to mesh with the at least two first teeth 28A.

[0046] As in the Fig. 6 and Fig. As can be seen in Figure 7, at least one first gear tooth 28A extends in the axial direction D1. At least one second gear tooth 30A extends in the axial direction D1. At least one external gear tooth 18A extends in the axial direction D1.

[0047] The pinion carrier body 16 includes a tubular section 31. The tubular section 31 extends circumferentially around the axis of rotation A1. The external teeth 18 are provided on the tubular section 31. The at least one external tooth 18A is provided on the tubular section 31 and extends in the axial direction D1. The at least one external tooth 18A is provided on the outer circumferential surface of the tubular section 31 and extends in the axial direction D1.

[0048] The at least one external tooth 18A projects radially outward from the tubular section 31 to engage with the internal teeth of the pinion assembly 8. The at least two external teeth 18A project radially outward from the tubular section 31 to engage with the internal teeth of the pinion assembly 8. The at least one external tooth 18A projects radially outward from an outer circumferential surface of the tubular section 31. The at least two external teeth 18A project radially outward from an outer circumferential surface of the tubular section 31.

[0049] As in Fig. As can be seen in Figure 5, at least one second gear tooth 30A projects radially inwards from the tubular section 31. The at least two second gear teeth 30A project radially inwards from the tubular section 31.

[0050] In the present embodiment, the total number of at least one external tooth 18A is nine. The total number of at least one first tooth 28A is 18. The total number of at least one second tooth 30A is 18. The total number of at least one first tooth 28A is greater than the total number of at least one external tooth 18A. The total number of at least one second tooth 30A is greater than the total number of at least one external tooth 18A. The total number of at least one first tooth 28A is equal to the total number of at least one second tooth 30A. Alternatively, the total number of at least one first tooth 28A can be less than or equal to the total number of at least one external tooth 18A.The total number of at least one second gear tooth 30A can be less than or equal to the total number of at least one external gear tooth 18A. The total number of at least one first gear tooth 28A can differ from the total number of at least one second gear tooth 30A.

[0051] In the present embodiment, the at least one external tooth 18A is integrally formed with the tubular section 31 as a single, integral element. The at least two external teeth 18A are integrally formed with the tubular section 31 as a single, integral element. Alternatively, the at least one external tooth 18A can also be a separate element from the tubular section 31. The at least two external teeth 18A can be a separate element from the tubular section 31.

[0052] The pinion carrier body 16 is made of a first material. The tubular section 31 and the at least one external tooth 18A are made of the first material. The transmission body 26 is made of a second material. In the present embodiment, the first material has a greater hardness than the second material. The weight per unit volume of the second material is less than the weight per unit volume of the first material. Alternatively, the hardness of the first material can be less than or equal to the hardness of the second material. The weight per unit volume of the second material can be greater than or equal to the weight per unit volume of the first material. The first material contains, for example, iron. The second material contains aluminum. The first material can also contain at least one material other than iron. The second material can contain at least one material other than aluminum.If the second material contains aluminium, it is possible to simplify the manufacture of the transmission body 26, even if the transmission body 26 has a comparatively complicated shape, such as helical gearing.

[0053] As in Fig. As can be seen in Figure 8, the at least one first tooth 28A includes a first contact surface 28A1 and a first inclined surface 28A2. The first contact surface 28A1 can come into contact with the second tooth 30 to absorb the rotational force F1 from the pinion carrier body 16. The first inclined surface 28A2 is inclined relative to the first contact surface 28A1. The first inclined surface 28A2 extends away from the first contact surface 28A1 to reduce a distance DS1 defined between the axis of rotation A1 and the first inclined surface 28A2.

[0054] The at least one first tooth 28A includes a first intermediate surface 28A3. The first intermediate surface 28A3 is located between the first contact surface 28A1 and the first inclined surface 28A2. The first intermediate surface 28A3 couples the first contact surface 28A1 and the first inclined surface 28A2. The first intermediate surface 28A3 extends in the circumferential direction D2. The first inclined surface 28A2 is inclined relative to the first intermediate surface 28A3. The first inclined surface 28A2 extends away from the first intermediate surface 28A3 to reduce the distance DS1. The first intermediate surface 28A3 can be omitted in the at least one first tooth 28A.

[0055] The at least one second tooth 30A includes a second contact surface 30A1 and a second inclined surface 30A2. The second contact surface 30A1 can come into contact with the first tooth 28 to transmit the rotational force F1 to the transmission body 26. The second inclined surface 30A2 is inclined relative to the second contact surface 30A1. The second inclined surface 30A2 extends away from the second contact surface 30A1 to reduce a distance DS2 defined between the axis of rotation A1 and the second inclined surface 30A2.

[0056] The at least one second tooth 30A includes a second intermediate surface 30A3. The second intermediate surface 30A3 is located between the second contact surface 30A1 and the second inclined surface 30A2. The second intermediate surface 30A3 couples the second contact surface 30A1 and the second inclined surface 30A2. The second intermediate surface 30A3 extends in the circumferential direction D2. The second inclined surface 30A2 is inclined relative to the second intermediate surface 30A3. The second inclined surface 30A2 extends away from the second intermediate surface 30A3 to reduce the distance DS1. The second intermediate surface 30A3 can be omitted in the at least one second tooth 30A.

[0057] The first contact surface 28A1 is in contact with the second contact surface 30A1 to transmit the rotational force F1 from the pinion carrier body 16 to the transmission body 26 during pedaling. The first inclined surface 28A2 faces the second inclined surface 30A2 in a state where the first teeth 28 mesh with the second teeth 30. The first inclined surface 28A2 can come into contact with the second inclined surface 30A2 in a state where the first teeth 28 mesh with the second teeth 30. The first intermediate surface 28A3 faces the second intermediate surface 30A3 in a state where the first teeth 28 mesh with the second teeth 30. The first intermediate surface 28A3 can come into contact with the second intermediate surface 30A3 in the state in which the first toothing 28 engages with the second toothing 30.The inner periphery 16A of the pinion carrier body 16 has a shape that is complementary to a shape of the outer periphery 26A of the transmission body 26.

[0058] As in Fig. As shown in Figure 4, the hub assembly 10 further comprises a coupling element 32. The coupling element 32 is configured to couple the pinion carrier body 16 and the transmission body 26. The coupling element 32 is configured to engage with the transmission body 26. The coupling element 32 is configured to engage with the transmission body 26 via a thread. The pinion carrier body 16, the transmission body 26, and the coupling element 32 define a pinion carrier structure 49. The coupling element 32 can be configured to couple the pinion carrier body 16 and the transmission body 26 directly or indirectly.

[0059] The transmission body 26 includes an internal threaded section 34. The coupling element 32 includes an external threaded section 36. The external threaded section 36 is configured to engage with the internal threaded section 34. The internal threaded section 34 is provided at least partially radially within the outer periphery 26A of the transmission body 26.

[0060] The coupling element 32 includes a positioning surface 32A. The positioning surface 32A is designed, in a coupling state in which the coupling element 32 couples the pinion carrier body 16 and the transmission body 26, to position the pinion carrier body 16 relative to the transmission body 26 in the axial direction D1.

[0061] The hub assembly 10 further comprises an intermediate element 38. The intermediate element 38 is provided in the coupling state in the axial direction D1 between the pinion carrier body 16 and the positioning surface 32A of the coupling element 32.

[0062] The transmission body 26 includes an additional positioning surface 40. The flange section 26F includes the additional positioning surface 40. The additional positioning surface 40 is designed to position the pinion carrier body 16 relative to the transmission body 26 in the axial direction D1 when coupled. In the coupled state, the pinion carrier body 16 is held in the axial direction D1 between the positioning surface 32A and the additional positioning surface 40. The additional positioning surface 40 is in contact with the pinion carrier body 16 when coupled. In the coupled state, another element may be provided in the axial direction D1 between the pinion carrier body 16 and the additional positioning surface 40.

[0063] The coupling element 32 is designed to be at least partially radially located within the pinion carrier body 16. The coupling element 32 comprises a first coupling section 42 and a second coupling section 44. The first coupling section 42 includes the positioning surface 32A. In the coupled state, the first coupling section 42 is in contact with an inner circumferential surface 16B of the pinion carrier body 16. A sealing element 46 is provided between the pinion carrier body 16 and the first coupling section 42. The first coupling section 42 includes an annular groove 42A. The sealing element 46 is located in the groove 42A.

[0064] The second coupling section 44 extends from the first coupling section 42 in the axial direction D1. The second coupling section 44 includes the externally threaded section 36. In the coupled state, the second coupling section 44 is in contact with an inner circumferential surface 26B of the transmission body 26. A sealing element 48 is provided between the transmission body 26 and the second coupling section 44. The sealing element 48 is located in the axial direction D1 between the externally threaded section 36 and the first coupling section 42. The second coupling section 44 includes an annular groove 44A. The sealing element 48 is located in the groove 44A. The second coupling section 44 includes the externally threaded section 36.

[0065] As in Fig. As shown in Figure 7, the coupling element 32 includes a tool engagement section 32C into which a tool engages to rotate the coupling element 32 relative to the pinion carrier body 16 and the transmission body 26 when the pinion carrier body 16, the transmission body 26, and the coupling element 32 are assembled. The tool engagement section 32C includes at least one recess 32D. The at least one recess 32D is configured to engage with the tool when the pinion carrier body 16, the transmission body 26, and the coupling element 32 are assembled.

[0066] As in Fig. As shown in Figure 4, the hub assembly 10 includes a first bearing 50. The first bearing 50 is radially positioned between the hub axle 12 and the pinion carrier body 16. The first bearing 50 is radially positioned between the hub axle 12 and the coupling element 32. The first bearing 50 is designed to rotatably support the pinion carrier body 16 and the coupling element 32 relative to the hub axle 12 about the axis of rotation A1.

[0067] The hub assembly 10 comprises a first bearing 52. The first bearing 52 is arranged radially between the hub axle 12 and the pinion carrier body 16. The first bearing 52 is arranged radially between the hub axle 12 and the coupling element 32. The first bearing 52 is designed to rotatably support the pinion carrier body 16 and the coupling element 32 relative to the hub axle 12 about the axis of rotation A1.

[0068] The coupling element 32 is configured to contact the first bearing 50, which is configured to mount the coupling element 32 rotatably relative to the hub axis 12. The coupling element 32 is configured to contact the first bearing 52, which is configured to mount the coupling element 32 rotatably relative to the hub axis 12.

[0069] The hub assembly 10 includes a second bearing 54. The second bearing 54 is radially positioned between the hub axle 12 and the transmission body 26. The second bearing 54 is designed to rotatably support the pinion carrier body 16 and the transmission body 26 relative to the hub axle 12 about the axis of rotation A1.

[0070] As in Fig. As shown in Figure 3, the hub axle 12 comprises an axle body 12A, a stopper 12B, and an additional stopper 12C. The hub assembly 10 also includes the stopper 12B. The axle body 12A, the stopper 12B, and the additional stopper 12C each have a tubular shape. The axle body 12A includes a first axle end 12A1 and a second axle end 12A2. The axle body 12A extends between the first axle end 12A1 and the second axle end 12A2 along the axis of rotation A1. The stopper 12B is coupled to the first axle end 12A1. The additional stopper 12C is coupled to the second axle end 12A2. The additional stopper 12C is attached to the second axle end 12A2.

[0071] As in Fig. As shown in Figure 4, the stopper 12B is designed to position the pinion carrier body 16, the transmission body 26, and the coupling element 32 relative to the hub axle 12 in the axial direction D1, which is defined along the axis of rotation A1. The hub assembly 10 includes a sleeve 56. The sleeve 56 has a tubular shape. The sleeve 56 is provided radially outside the axle body 12A of the hub axle 12. The axle body 12A is, for example, fitted into the sleeve 56. The pinion carrier body 16 is provided at least partially radially outside the sleeve 56. The transmission body 26 is provided at least partially radially outside the sleeve 56. The coupling element 32 is provided at least partially radially outside the sleeve 56. The second bearing 54 is provided radially outside the sleeve 56. The hub axle 12 includes a positioning section 12P.The first hub bearing 20, the sleeve 56, and the first bearings 50 and 52 are held between the positioning section 12P and the stopper 12B. The coupling element 32 includes an additional positioning surface 32B. The additional positioning surface 32B can come into contact with the first bearing 50. The transmission body 26 includes a positioning surface 26C. The positioning surface 26C can come into contact with the second bearing 54.

[0072] The sleeve 56 comprises a first sleeve end 56A and a second sleeve end 56B. The sleeve 56 extends between the first sleeve end 56A and the second sleeve end 56B along the axis of rotation A1. The first sleeve end 56A can contact the first bearing 50. The second sleeve end 56B can contact the first hub bearing 20. The second sleeve end 56B can contact the second bearing 54. The first bearing 50 and the second sleeve end 56B of the sleeve 56 prevent the pinion carrier body 16, the transmission body 26, the coupling element 32, and the second bearing 54 from moving relative to the hub axis 12 in the axial direction D1.

[0073] As in Fig. As shown in Figure 4, the hub assembly 10 further comprises a first sealing element 57. The first sealing element 57 is provided between the hub axle 12 and at least one of the pinion carrier body 16 and the coupling element 32. The first sealing element 57 is provided between the stopper 12B and at least one of the pinion carrier body 16 and the coupling element 32 to prevent a foreign body from entering a space S1 provided between the coupling element 32 and the stopper 12B. The first bearings 50 and 52 are provided in the space S1. The first sealing element 57 has an annular shape.

[0074] In the present embodiment, the first sealing element 57 is provided between the stopper 12B and the pinion carrier body 16 to prevent a foreign body from entering the space S1. Alternatively, the first sealing element 57 can also be provided between the stopper 12B and the coupling element 32, or between the stopper 12B and both the pinion carrier body 16 and the coupling element 32.

[0075] The hub assembly 10 further comprises a second sealing element 58. The second sealing element 58 is provided between the hub body 14 and the transmission body 26 to prevent a foreign body from entering a space S2 provided between the hub body 14 and the transmission body 26. The one-way coupling 24 is provided at least partially within the space S2. The second sealing element 58 has an annular shape. The second sealing element 58 is provided radially outside the transmission body 26.

[0076] The hub assembly 10 includes a sealing stop 59A. The sealing stop 59A is coupled to the hub body 14 to hold the second sealing element 58 between the hub body 14 and the sealing stop 59A. The sealing stop 59A is detachably and reattached to the hub body 14. The sealing stop 59A includes, for example, a snap ring. The sealing stop 59A extends circumferentially.

[0077] The hub assembly 10 further comprises a dust cover 59B. The dust cover 59B is designed to be mounted on the transmission body 26. The hub assembly 10 also comprises a cover stop 59C. The cover stop 59C is coupled to the pinion carrier body 16 to hold the dust cover 59B between the transmission body 26 and the cover stop 59C. The cover stop 59C is detachably and reattachably coupled to the transmission body 26. The dust cover 59B has, for example, an annular shape. The cover stop 59C includes a snap ring. The sealing stop 59A extends circumferentially.

[0078] As in Fig. As shown in Figure 9, the one-way coupling 24 includes a first pawl element 60 and a second pawl element 62. The first pawl element 60 is coupled to the transmission body 26 so that it rotates together with the transmission body 26 relative to the hub body 14. The second pawl element 62 is coupled to the hub body 14 so that it rotates together with the hub body 14 relative to the transmission body 26.

[0079] As in Fig. As can be seen in Figure 10, the transmission body 26 includes a helical gear 64. The helical gear 64 includes at least one first helical tooth 64A. In the present embodiment, the helical gear 64 includes at least two first helical teeth 64A. The at least two first helical teeth 64A are arranged in the circumferential direction D2.

[0080] As in Fig. As can be seen in Figure 9, the helical gearing 64 is designed to engage with the first pawl element 60 in order to movably support the first pawl element 60 in response to a relative rotation between the transmission body 26 and the first pawl element 60 in the axial direction D1.

[0081] As in Fig. As can be seen in Figure 10, the first pawl element 60 includes an additional helical tooth 68. The additional helical tooth 68 is configured to engage with the helical tooth 64. The additional helical tooth 68 includes at least one second helical tooth 68A. In the present embodiment, the additional helical tooth 68 includes at least two second helical teeth 68A. However, the total number of the at least one second helical tooth 68A is not limited to the illustrated embodiment.

[0082] As in Fig. As can be seen in Figure 11, the helical gear 64 and the additional helical gear 68 are engaged to transmit the rotational force F1 between the transmission body 26 and the first pawl element 60. The at least one first helical gear tooth 64A and the at least one second helical gear tooth 68A mesh to transmit the rotational force F1 between the transmission body 26 and the first pawl element 60. The at least two first helical gear teeth 64A and the at least two second helical gear teeth 68A mesh to transmit the rotational force F1 between the transmission body 26 and the first pawl element 60.

[0083] The first pawl element 60 includes a first base section 60A. The first base section 60A has, for example, an annular shape. The additional helical teeth 68 are provided radially within the first base section 60A. The at least one second helical tooth 68A projects radially inward from the first base section 60A. The at least two second helical teeth 68A project radially inward from the first base section 60A. The shape of the first base section 60A is not limited to the illustrated embodiment.

[0084] As in Fig. As can be seen in Figure 10, the second pawl element 62 includes at least one second tooth 62A. In the present embodiment, the second pawl element 62 includes at least two second teeth 62A. However, the total number of at least one second tooth 62A is not limited to the illustrated embodiment.

[0085] The hub body 14 includes at least one first tooth 70. The hub body 14 includes a tubular section 72. The at least one first tooth 70 projects radially inwards from the tubular section 72. In the present embodiment, the hub body 14 includes at least two first teeth 70. The at least two first teeth 70 project radially inwards from the tubular section 72. However, the total number of at least one first tooth 70 is not limited to the illustrated embodiment.

[0086] As in Fig. As shown in Figure 11, the second pawl element 62 includes a second base section 62B. The second base section 62B has, for example, an annular shape. The at least one second tooth 62A projects radially outwards from the second base section 62B. The at least two second teeth 62A project radially outwards from the second base section 62B. The shape of the second base section 62B is not limited to the illustrated embodiment.

[0087] The at least one second tooth 62A is configured to engage with the at least one first tooth 70. The at least one first tooth 70 and the at least one second tooth 62A mesh to transmit the rotational force F1 between the hub body 14 and the second pawl element 62. The at least two second teeth 62A are configured to engage with the at least two first teeth 70. The at least two first teeth 70 and the at least two second teeth 62A mesh to transmit the rotational force F1 between the hub body 14 and the second pawl element 62.

[0088] As in Fig. As shown in Figure 12, the first pawl element 60 includes at least one first pawl tooth 74. The at least one first pawl tooth 74 projects from the first base section 60A towards the second pawl element 62. In the present embodiment, the first pawl element 60 includes at least two first pawl teeth 74. The at least two first pawl teeth 74 project from the first base section 60A towards the second pawl element 62. However, the total number of at least one first pawl tooth 74 is not limited to the illustrated embodiment.

[0089] As in Fig. As shown in Figure 13, the second pawl element 62 includes at least one second pawl tooth 76. The at least one second pawl tooth 76 projects from the second base section 62B in the direction of the first pawl element 60. In the present embodiment, the second pawl element 62 includes at least two second pawl teeth 76. The at least two second pawl teeth 76 project from the second base section 62B in the direction of the first pawl element 60. However, the total number of at least one second pawl tooth 76 is not limited to the illustrated embodiment.

[0090] As in Fig. As can be seen in Figure 9, at least one second pawl tooth 76 is formed to engage with at least one first pawl tooth 74. The at least one first pawl tooth 74 and the at least one second pawl tooth 76 are designed to interlock in order to resist the rotational force F1 (see, for example, Figure 9). Fig. 12 and Fig. 13) to transmit between the first pawl element 60 and the second pawl element 62. The at least two second pawl teeth 76 are designed to engage with the at least two first pawl teeth 74. The at least two first pawl teeth 74 and the at least two second pawl teeth 76 are designed to interlock in order to transmit the rotational force F1 (see, for example, Fig. 12 and Fig. 13) to transfer between the first locking pawl element 60 and the second locking pawl element 62.

[0091] The one-way coupling 24 includes a preloading element 77. The preloading element 77 is positioned in the axial direction D1 between the hub body 14 and the first pawl element 60 to preload the first pawl element 60 towards the second pawl element 62 in the axial direction D1. The axial direction D1 includes a first axial direction D11 and a second axial direction D12. The second axial direction D12 is opposite to the first axial direction D11. The preloading element 77 is configured to preload the first pawl element 60 towards the second pawl element 62 in the first axial direction D11. In the present embodiment, the preloading element 77 includes a spring. However, the preloading element 77 can also include an element other than a spring if required or desired.

[0092] The hub assembly 10 includes a receiving element 78. The receiving element 78 is positioned in the axial direction D1 between the first pawl element 60 and the preload element 77. The receiving element 78 is pressed against the first pawl element 60 by the preload element 77. The receiving element 78 is in sliding contact with the first pawl element 60.

[0093] As in Fig. As can be seen in Figure 10, the one-way coupling 24 includes a spacer 80. The spacer 80 includes at least one base element 82 and at least one axial projection 84. The at least one base element 82 extends in the circumferential direction D2. The at least one axial projection 84 extends from the at least one base element 82 in the axial direction D1.

[0094] As in Fig. As can be seen in Figure 11, at least one axial projection 84 is provided between the at least one second tooth 62A of the second pawl element 62 and the at least one first tooth 70 of the hub body 14.

[0095] As in Fig. As can be seen in 10, the one-way coupling 24 includes a support element 90. As in Fig. As can be seen in Figure 9, the support element 90 is designed to press the spacer 80 in the axial direction D1 towards the second pawl element 37. The support element 90 is coupled to the second pawl element 37 to prevent the spacer 80 from moving relative to the second pawl element 37 in the axial direction D1.

[0096] As in Fig. As can be seen in Figure 14, at least one second helical tooth 68A is guided by at least one first helical tooth 64A relative to the pinion carrier structure 49 in the first axial direction D11 when the rotational force F1 acts on the pinion carrier body 16 in the first rotational direction D31 (see, for example, Figure 14). Fig. 2) As in Fig. As can be seen in Figure 9, this brings at least the first two pawl teeth 74 strongly into engagement with at least the second pawl teeth 76. In this state, the rotational force F1 (see, for example, Figure 9) Fig. 14) from the sprocket carrier structure 49 to the hub body 14 (see for example Fig. 9) via the first locking pawl element 60 and the second locking pawl element 62 (see, for example, Fig. 9) transferred.

[0097] As in Fig. As can be seen in Figure 15, the helical gear 64 includes at least one guide section 64G. The guide section 64G projects from at least one of the first helical gear teeth 64A at least in the circumferential direction D2. The at least one guide section 64G is configured to move the first pawl element 60 away from the second pawl element 62 in the second axial direction D12 during idle or freewheeling. The at least one guide section 64G is configured to move the first pawl element 60 against the preload force of the preload element 77 during idle or freewheeling. As shown in Fig. As can be seen in Figure 10, this allows the hub body 14 and the second pawl element 62 to rotate relative to the pinion carrier body 16 and the first pawl element 60 in the first direction of rotation D31.

[0098] As in the Fig. 10 and Fig. As can be seen in Figure 15, a rotation of the pinion carrier structure 49 and the pinion assembly 8 (see, for example, Figure 15) will occur. Fig. 2) stopped during idle, as the rotation of a crank is stopped while the human-powered vehicle 2 is moving forward. The hub body 14 and the second pawl element 62 rotate in the first rotational direction D31, while the rotation of the pinion carrier structure 49 and the pinion assembly 8 (see, for example, Figure 1) is stopped. Fig. 2) is stopped during idle. When the hub body 14 and the second pawl element 62 rotate relative to the pinion carrier structure 49 in the first rotation direction D31, as shown in Fig. As can be seen in Figure 15, the at least one guide section 64G and the at least one first helical tooth 64A guide the at least one second helical tooth 68A in the second axial direction D12. In this way, the first pawl element 60 is moved relative to the second pawl element 62 in the second axial direction D12 against the preload force of the preload element 77 during idle operation, thereby reducing the engagement between the at least two first pawl teeth 74 and the at least two second pawl teeth 76. This allows the second pawl element 62 to rotate relative to the first pawl element 60 in the first rotational direction D31, while the at least one first pawl tooth 74 of the first pawl element 60 slides with the at least one second pawl tooth 76 of the second pawl element 62.In this way, the hub body 14 can be rotated in the first direction of rotation D31 relative to the pinion carrier structure 49 during idle operation.

[0099] In the present embodiment and its modifications, the transmission body 26 is not included in the one-way coupling 24. However, the one-way coupling 24 can include the transmission body 26 if required or desired.

[0100] In the present embodiment and its variations, as in Fig. As shown in Figure 16, the outer periphery 26A of the transmission body 26 can include a first external threaded section 128 instead of the first toothed section 28. The inner periphery 16A of the pinion carrier body 16 can include a second internal threaded section 130 instead of the second toothed section 30, which is configured to engage with the first external threaded section 128. In this modification, the coupling element 32 in the hub assembly 10 can be omitted.

[0101] In the present application, the term "comprise" and its derivatives, as used herein, are to be understood as open terms that specify the presence of the indicated features, elements, components, groups, integers, and / or steps, but do not exclude the presence of other unspecified features, elements, components, groups, integers, and / or steps. This concept also applies to words with similar meanings, for example, the terms "have," "include," and their derivatives.

[0102] The terms “element”, “section”, “portion”, “part”, “element”, “body” and “structure”, when used in the singular, can have the dual meaning of a single part or a multitude of parts.

[0103] The ordinal numbers such as "first(s)" and "second(s)" mentioned in the present application are merely identifiers and have no further meaning, such as indicating a specific order or anything similar. Furthermore, the term "first element," for example, does not in itself imply the existence of a "second element," and the term "second element" does not in itself imply the existence of a "first element."

[0104] The term “pair”, as used here, can include the configuration in which the pair of elements has different shapes or structures from each other, in addition to the configuration in which the pair of elements has the same shapes or structures as each other.

[0105] The terms “a” (or “a / r”), “one or more” and “at least one” can be used interchangeably here.

[0106] The phrase “at least one of,” as used in this disclosure, means “one or more” of a desired choice. For example, the phrase “at least one of,” as used in this disclosure, means “only a single choice” or “both of two choices” when the number of choices is two. Another example: The phrase “at least one of,” as used in this disclosure, means “only a single choice” or “any combination of two or more choices” when the number of choices is three or more. For example, the expression “at least one of A and B” includes (1) A alone, (2) B alone, and (3) both A and B. The expression “at least one of A, B, and C” includes (1) A alone, (2) B alone, (3) C alone, (4) both A and B, (5) both B and C, (6) both A and C, and (7) all A, B, and C.In other words, the phrase “at least one of A and B” in this revelation does not mean “at least one of A and at least one of B”.

[0107] Finally, terms such as "essentially," "approximately," and "approximately," as used here, signify a reasonable deviation from the modified term, such that the final result is not substantially altered. All numerical values ​​described in this application can be understood as including terms such as "essentially," "approximately," and "approximately."

[0108] Naturally, numerous modifications and variations of the present invention are possible in light of the above teachings. It therefore goes without saying that the invention can also be implemented differently than specifically described here, within the scope of the attached claims. REFERENCE MARK 2 human-powered vehicles 4-wheeler 5 spoke 6 Vehicle body 8 Pinion assembly 10 Hub assembly 12 Hub axle 12A Axle body 12A1 first axle end 12A2 second axle end 12B Stopper 12C additional stopper 12P Positioning Section 14 hub bodies 16 pinion carrier bodies 16A inner periphery 16B inner circumferential surface 18 External teeth 18A External tooth 19 Locking element 20 first hub bearing 22 second hub bearing 24 one-way couplings 26 transmission bodies 26A outer periphery 26B inner circumferential surface 26C positioning area 26D tubular section 26F flange section 28 first gearing 28A first tooth 28A1 first contact surface 28A2 first inclined surface 28A3 first intermediate surface 30 second gearing 30A second tooth 30A1 second contact surface 30A2 second inclined surface 30A3 second intermediate surface 31 tubular section 32 Coupling element 32A Positioning area 32B additional positioning area 32C Tool engagement section 32D cutout 34 Internal thread section 36 External thread section 38 Intermediate element 40 additional positioning areas 42 first coupling section 42A Nut 44 second coupling section 44A Nut 46, 48 Sealing element 49 Pinion carrier structure 50 first camp 52 first camp 54 second camp 56 Sleeve 56A first sleeve end 56B second sleeve end 57 first sealing element 58 second sealing element 59A Seal stopper 59B Dust cover 59C Cover stopper 60 first locking pawl element 60A first base section 62 second locking pawl element 62A second tooth 62B second basic section 64 Helical gearing 64A first helical teeth 64G Guide Section 68 additional helical gears 68A second helical tooth 70 first tooth 72 tubular section 74 first pawl tooth 76 second pawl tooth 77 Preload element 78 Recording element 80 spacers 82 Basic element 84 axial projection 90 Support element 128 first external thread section 130 second internal thread section A1 Rotation axis AL axial length CP axial midplane D1 axial direction D11 first axial direction D12 second axial direction D2 circumferential direction D31 first direction of rotation D32 second direction of rotation DS1 distance DS2 distance F1 Rotational force S1 Room S2 Room

Claims

[1] Hub assembly (10) comprising: a hub axle (12); a hub body (14) which is rotatable relative to the hub axis (12) about a rotation axis (A1); a pinion carrier body (16) which is rotatable relative to the hub axis (12) about the axis of rotation (A1), wherein the pinion carrier body (16) includes: an external toothing (18) which is configured to engage with an internal toothing of a pinion assembly (8) of a human-powered vehicle (2), and an inner periphery (16A); a one-way coupling (24) configured to restrict rotation of the pinion carrier body (16) relative to the hub body (14) in a first direction of rotation (D31), wherein the one-way coupling (24) is configured to allow rotation of the pinion carrier body (16) relative to the hub body (14) in a second direction of rotation (D32), which is an opposite direction to the first direction of rotation (D31); and a transmission body (26) provided between the pinion carrier body (16) and the one-way coupling (24) to transmit rotational force from the pinion carrier body (16) to the one-way coupling (24), wherein the transmission body (26) is an element separate from the pinion carrier body (16), wherein the transmission body (26) includes an outer periphery (26A) configured to engage with the inner periphery (16A) of the pinion carrier body (16). [2] Hub assembly (10) according to claim 1, wherein the pinion carrier body (16) is made of a first material, the transmission body (26) is made of a second material, and The first material has a greater hardness than the second material. [3] Hub assembly (10) comprising: a hub axle (12); a hub body (14) which is rotatable relative to the hub axis (12) about a rotation axis (A1); a pinion carrier body (16) which is rotatable relative to the hub axis (12) about the axis of rotation (A1), wherein the pinion carrier body (16) includes an external toothing (18) which is configured to engage with an internal toothing of a pinion assembly (8) of a human-powered vehicle (2), wherein the pinion carrier body (16) is made of a first material; a one-way coupling (24) configured to restrict rotation of the pinion carrier body (16) relative to the hub body (14) in a first direction of rotation (D31), wherein the one-way coupling (24) is configured to allow rotation of the pinion carrier body (16) relative to the hub body (14) in a second direction of rotation (D32), which is an opposite direction to the first direction of rotation (D31); and a transmission body (26) which is provided between the pinion carrier body (16) and the one-way coupling (24) to transmit rotational force from the pinion carrier body (16) to the one-way coupling (24), wherein the transmission body (26) is made of a second material, the first material having a greater hardness than the second material. [4] Hub assembly (10) according to one of the preceding claims, wherein the one-way coupling (24) comprises a first pawl element (60) and a second pawl element (62), wherein the first pawl element (60) is coupled to the transmission body (26) to rotate together with the transmission body (26) relative to the hub body (14), and the second pawl element (62) is coupled to the hub body (14) to rotate together with the hub body (14) relative to the transmission body (26). [5] Hub assembly (10) comprising: a hub axle (12); a hub body (14) which is rotatable relative to the hub axis (12) about a rotation axis (A1); a pinion carrier body (16) which is rotatable relative to the hub axis (12) about the axis of rotation (A1), wherein the pinion carrier body (16) includes an external toothing (18) which is configured to engage with an internal toothing of a pinion assembly (8) of a human-powered vehicle (2); a one-way coupling (24) configured to restrict rotation of the pinion carrier body (16) relative to the hub body (14) in a first direction of rotation (D31), wherein the one-way coupling (24) is configured to allow rotation of the pinion carrier body (16) relative to the hub body (14) in a second direction of rotation (D32), which is an opposite direction to the first direction of rotation (D31); and a transmission body (26) which is provided between the pinion carrier body (16) and the one-way coupling (24) to transmit rotational force from the pinion carrier body (16) to the one-way coupling (24), wherein the one-way coupling (24) includes a first pawl element (60) and a second pawl element (62), wherein the first pawl element (60) is coupled to the transmission body (26) to rotate together with the transmission body (26) relative to the hub body (14), and the second pawl element (62) is coupled to the hub body (14) to rotate together with the hub body (14) relative to the transmission body (26). [6] Hub assembly (10) according to claim 4 or 5, wherein the transmission body (26) includes a helical toothing (64) configured to engage with the first pawl element (60) to movably support the first pawl element (60) in response to a relative rotation between the transmission body (26) and the first pawl element (60) in an axial direction (D1), wherein the axial direction (D1) is defined along the axis of rotation (A1). [7] Hub assembly (10) according to one of the preceding claims, wherein the pinion carrier body (16) includes a tubular section (31) extending circumferentially around the axis of rotation (A1), and the external toothing (18) includes at least one external tooth (18A) extending radially outwards from the tubular section (31) to engage with the internal toothing of the pinion assembly (8). [8] Hub assembly (10) according to one of the preceding claims, wherein the outer periphery (26A) of the transmission body (26) includes a first toothing (28) which is configured not to engage with the internal toothing of the pinion assembly (8), and the inner periphery (16A) of the pinion carrier body (16) includes a second toothing (30) which is configured to engage with the first toothing (28). [9] Hub assembly (10) according to claim 8, wherein the first toothing (28) includes at least one first toothing tooth (28A), and the at least one first toothing tooth (28A) includes: a first contact surface (28A1) which can be brought into contact with the second toothing (30) to receive a rotational force from the pinion carrier body (16), and a first inclined surface (28A2) which is inclined relative to the first contact surface (28A1), wherein the first inclined surface (28A2) extends away from the first contact surface (28A1) to reduce a distance defined between the axis of rotation (A1) and the first inclined surface (28A2). [10] Hub assembly (10) according to any one of claims 1 to 7, wherein the outer periphery (26A) of the transmission body (26) includes a first external thread section (128), and the inner periphery (16A) of the pinion carrier body (16) includes a second internal thread section (130) configured to engage with the first external thread section (128). [11] Hub assembly (10) according to any one of the preceding claims, further comprising: a coupling element (32) designed to couple the pinion carrier body (16) and the transmission body (26). [12] Hub assembly (10) according to claim 11, wherein the coupling element (32) is configured to engage with the transmission body (26). [13] Hub assembly (10) according to claim 11 or 12, wherein the coupling element (32) is configured to engage in threaded engagement with the transmission body (26). [14] Hub assembly (10) according to one of claims 11 to 13, wherein the coupling element (32) includes a positioning surface (32A) which is configured, in a coupling state in which the coupling element (32) couples the pinion carrier body (16) and the transmission body (26), to position the pinion carrier body (16) relative to the transmission body (26) in an axial direction (D1), wherein the axial direction (D1) is defined along the axis of rotation (A1). [15] Hub assembly (10) according to claim 14, further comprising: an intermediate element (38) which, in the coupling state, is provided in the axial direction between the pinion carrier body (16) and the positioning surface (32A) of the coupling element (32). [16] Hub assembly (10) according to one of claims 11 to 15, wherein the coupling element (32) is configured to contact a first bearing (50, 52) which is configured to rotatably mount the coupling element (32) relative to the hub axis (12). [17] Hub assembly (10) according to any one of claims 11 to 16, further comprising: a stopper (12B) configured to position the pinion carrier body (16), the transmission body (26) and the coupling element (32) relative to the hub axis (12) in an axial direction (D1) defined along the axis of rotation (A1); and a first sealing element (57) provided between the stopper (12B) and at least one of the pinion carrier body (16) and the coupling element (32) to prevent a foreign body from entering a space (S1) provided between the coupling element (32) and the stopper (12B). [18] Hub assembly (10) according to any one of the preceding claims, further comprising: a second sealing element (58) provided between the hub body (14) and the transmission body (26) to prevent a foreign body from entering a space (S2) provided between the hub body (14) and the transmission body (26). [19] Hub assembly (10) according to one of the preceding claims, wherein the transmission body (26) is configured to contact a second bearing (54) which is configured to rotatably mount the transmission body (26) relative to the hub axis (12). [20] Wheel (4) comprising: the hub assembly (10) according to one of the preceding claims.

Images