Hub assembly for human-powered vehicle

Abstract

A wheel hub assembly is configured for use in a human-powered vehicle. The wheel hub assembly generally includes a hub axle, a hub body, electrical components, and a user input device. The hub body is rotatably mounted on the hub axle for rotation about the central axis of rotation of the wheel hub assembly. The user input device is electrically coupled to the electrical components.

Description

Technical Field

[0001] This disclosure generally relates to a wheel hub assembly for human-powered vehicles. Prior Technology

[0002] Some wheels used in human-powered vehicles (e.g., bicycles) have a hub, multiple spokes, and an annular rim. The hub has a hub axle, which is non-rotatably mounted to the frame of the human-powered vehicle. The hub has a hub body, which is coaxially coupled to the hub axle such that the hub body is arranged radially outward relative to the hub axle. Bearings are constructed and configured to support the hub body so that the hub body can rotate freely about the hub axle. In almost all types of bicycles except single-speed and racing bicycles, the bicycle wheel (typically the rear wheel) has a bicycle freewheel mounted on the hub of the wheel. The bicycle freewheel usually has a one-way clutch function, thereby transmitting torque only in one direction. Therefore, the freewheel is used so that the bicycle can move freely without pedals in any rotation (i.e., during gliding). During gliding, the bicycle freewheel is considered to be in a free-spinning state in which the bicycle wheel can rotate freely while the sprocket remains stationary. Summary of the Invention

[0003] Generally, this disclosure relates to various features of wheel assemblies used in human-powered vehicles. As used herein, "human-powered vehicle" refers to a vehicle that can be driven by at least human power, but excludes vehicles that use power other than human power alone. Specifically, vehicles that use only an internal combustion engine as their driving force are not included in human-powered vehicles. Human-powered vehicles are generally assumed to be compact, lightweight vehicles that sometimes do not require a license to drive on roads. There is no limitation on the number of wheels on a human-powered vehicle. Human-powered vehicles include, for example, unicycles and vehicles with three or more wheels. Human-powered vehicles include, for example, various types of bicycles, such as mountain bikes, road bikes, city bikes, cargo bikes, recumbent bikes, and electric-assisted bicycles (electric bicycles).

[0004] Based on known technology and according to a first aspect of this disclosure, a hub assembly is configured for use in a human-powered vehicle. The hub assembly substantially includes a hub axle, a hub body, an electrical assembly, and a user input device. The hub body is rotatably mounted on the hub axle for rotation about a central axis of rotation of the hub assembly. The user input device is electrically coupled to the electrical assembly.

[0005] Using the hub assembly according to the first aspect, the user can easily input signals to the electrical components via a user input device.

[0006] According to a second aspect of this disclosure, the hub assembly according to the first aspect is constructed to include a circuit board for a call component, and a user input device is electrically connected to the circuit board.

[0007] Using the hub assembly according to the second aspect, various electrical components of the electrical assembly can be interconnected using circuit boards.

[0008] According to a third aspect of this disclosure, the hub assembly according to the first or second aspect is constructed such that the call assembly is positioned in a manner that prevents rotation relative to the rotational central axis.

[0009] By utilizing the hub assembly according to the third aspect, electrical components can be protected more reliably by preventing rotational movement relative to the rotational center axis.

[0010] According to the fourth aspect of this disclosure, a hub assembly according to any one of the first to third aspects is constructed such that a call assembly is disposed in the hub body.

[0011] By utilizing the hub assembly according to the fourth aspect, the components of the electrical components can be protected more reliably by setting the electrical components in the hub body.

[0012] According to the fifth aspect of this disclosure, the hub assembly according to any one of the first to fourth aspects is constructed such that the user input device is spaced apart from the electrical components in the axial direction.

[0013] By utilizing the hub assembly according to the fifth aspect, the user input device can be remotely positioned from the electrical components in a more convenient location for operation.

[0014] According to the sixth aspect of this disclosure, the hub assembly according to any one of the first to fifth aspects is constructed such that the user input device does not include a wireless communication receiver.

[0015] By utilizing the wheel assembly according to the sixth aspect, the manufacturing cost of the wheel assembly can be reduced by not placing the wireless communication receiver in the user input device.

[0016] According to the seventh aspect of this disclosure, a hub assembly according to any one of the first to sixth aspects is constructed such that the hub axle includes a cable receiving channel extending axially between the electrical components and the user input device.

[0017] Using the hub assembly according to the seventh aspect, the electrical components can be easily connected to the user input device without interfering with the rotating parts by placing the cable in a cable receiving channel extending axially from the hub shaft.

[0018] According to the eighth aspect of this disclosure, the hub assembly according to any one of the first to seventh aspects further includes a first bearing rotatably supporting a first end of the hub body on a hub shaft, and a second bearing rotatably supporting a second end of the hub body on the hub shaft. An electrical component is disposed between the first and second bearings. A user input device is disposed between the first bearing and the axial end of the hub shaft.

[0019] Using the hub assembly according to the eighth aspect, the hub body can rotate on the hub axle with the electrical components and user input device positioned in several locations, so that the electrical components and user input device do not rotate with the hub body. The user input device can also transmit signals to the electrical components located on the opposite side of the first bearing in the axial direction.

[0020] According to the ninth aspect of this disclosure, a hub assembly according to any one of the first to eighth aspects is constructed such that a user input device is disposed outside the hub body.

[0021] Using the wheel assembly according to the ninth aspect, the user input device can be easily operated by the user without disassembling the wheel assembly.

[0022] According to the tenth aspect of this disclosure, a hub assembly according to any one of the first to eighth aspects is constructed such that a user input device is disposed inside the hub body.

[0023] By utilizing the hub assembly according to aspect ten, the user input device can be reliably protected.

[0024] According to the eleventh aspect of this disclosure, the hub assembly according to any one of the first to ninth aspects further includes a sprocket support body, which is configured to be rotatable about a rotational central axis, so as to transmit driving force to the hub body when rotating in the driving rotation direction about the rotational central axis.

[0025] Utilizing the hub assembly according to aspect eleven, the sprocket support acts as a flywheel to allow the sprocket support to stop rotating during gliding.

[0026] According to the twelfth aspect of this disclosure, the hub assembly according to the eleventh aspect is constructed such that the user input device is located inside the sprocket support.

[0027] By utilizing the hub assembly according to aspect 12, the user input device can be reliably protected.

[0028] According to the thirteenth aspect of this disclosure, the hub assembly according to any one of the first to twelfth aspects further includes an end cap disposed on the axial end of the hub shaft. A user input device is operably accessible through an opening in the end cap.

[0029] By utilizing the hub assembly according to aspect thirteen, the user input device can be reliably protected without disassembling the hub assembly and while still remaining accessible.

[0030] According to the fourteenth aspect of this disclosure, the hub assembly according to the thirteenth aspect is constructed such that the end cap includes a rotation limiting member configured to couple the hub axle to the body of the human-powered vehicle, such that the rotation of the hub axle relative to the body is limited.

[0031] Using the wheel assembly according to aspect fourteen, the wheel assembly can be easily installed in a suitable orientation.

[0032] According to the fifteenth aspect of this disclosure, the hub assembly according to any one of the first to fourteenth aspects further includes a double nut, the double nut comprising a first nut having a first tool engagement structure and a second nut having a second tool engagement structure. The first nut and the second nut are threadedly engaged with the external threads of the hub shaft. The first tool engagement structure and the second tool engagement structure face outward in the axial direction. The first tool engagement structure, when viewed in the axial direction, is positioned radially outward of the second tool engagement structure relative to the axis of rotation.

[0033] Using the hub assembly according to aspect fifteen, the double nuts can be locked even when components such as user input devices are placed between the axial end of the hub shaft and the double nuts.

[0034] According to the sixteenth aspect of this disclosure, the hub assembly according to the fifteenth aspect is constructed such that the user input device is located axially outside the double nuts relative to the axis of rotation, and is at least partially aligned with the double nuts in the axial direction.

[0035] Using the hub assembly according to aspect sixteen, a user input device is conveniently set up for user operation.

[0036] According to the seventeenth aspect of this disclosure, the hub assembly according to the fifteenth or sixteenth aspect is constructed such that the first tool engagement structure and the second tool engagement structure are accessible in the axial direction by a tool.

[0037] Using the hub assembly according to the seventeenth aspect, the first nut and the second nut can be locked when a component such as a user input device is placed between the axial end of the hub shaft and the double nuts.

[0038] According to the eighteenth aspect of this disclosure, the hub assembly according to any one of aspects fifteen to seventeen further includes a first bearing and a second bearing. The first bearing rotatably supports a first end of the hub body on a hub axle. The second bearing rotatably supports a second end of the hub body on a hub axle. The first nut includes an inner race of a plurality of rolling elements supporting the first bearing.

[0039] Using the hub assembly according to the eighteenth aspect, the hub body can rotate on the hub axle, and the number of components can be reduced by the first nut including the inner race of the first bearing.

[0040] According to the nineteenth aspect of this disclosure, the hub assembly according to any one of the first to eighteenth aspects further includes a generator disposed on the hub body and configured to generate electricity by rotation of the hub body.

[0041] Using the hub assembly according to aspect nineteen, it is possible to generate electricity from the rotation of the hub body.

[0042] According to the twentieth aspect of this disclosure, the hub assembly according to the nineteenth aspect is constructed to include at least one capacitor electrically connected to the generator.

[0043] By utilizing the hub assembly according to aspect 20, it is possible to supply electricity to the power supply components even when the human-powered vehicle is stopped.

[0044] According to the twenty-first aspect of this disclosure, a hub assembly is configured for use in a human-powered vehicle. The hub assembly substantially includes a hub axle, a rotating body, and double nuts. The rotating body is rotatably mounted on the hub axle to rotate about a rotational central axis of the hub assembly. The double nuts include a first nut having a first tool engagement structure and a second nut having a second tool engagement structure. The first and second nuts are threadedly engaged with the external threads of the hub axle. The first and second tool engagement structures face outwards in the axial direction relative to the rotational central axis. The first tool engagement structure, when viewed in the axial direction, is positioned radially outward of the second tool engagement structure relative to the rotational central axis.

[0045] Using the hub assembly according to aspect 21, the first nut and the second nut can be easily locked simultaneously or independently when both the first nut and the second nut are screwed into the external thread of the hub shaft.

[0046] According to the twenty-second aspect of this disclosure, the hub assembly according to the twenty-first aspect further includes an electrical component located on the axially outer side of the double nut relative to the axis of rotation, adjacent to the axial end of the hub shaft.

[0047] Using the hub assembly according to aspect twenty-two, the electrical components are conveniently arranged so that the electrical components can be accessed without loosening the first nut and / or the second nut.

[0048] According to the twenty-third aspect of this disclosure, the hub assembly according to the twenty-second aspect further includes a detected component and a rotation detection sensor. The detected component is disposed on a rotating body. The rotation detection sensor is configured to detect the detected component. An electrical assembly is disposed on the hub axle and includes the rotation detection sensor.

[0049] By utilizing the hub assembly according to aspect twenty-three, the rotation of a rotating body can be reliably detected.

[0050] According to aspect twenty-four of this disclosure, the hub assembly according to any one of aspects twenty-one to twenty-three further includes a first bearing and a second bearing. The first bearing rotatably supports a first end of the rotating body on the hub axle. The second bearing rotatably supports a second end of the rotating body on the hub axle. The first nut includes the inner race of the first bearing.

[0051] Using the hub assembly according to aspect twenty-four, the rotating body can rotate on the hub shaft, and the number of components can be reduced by the first nut including the inner race of the first bearing.

[0052] According to aspect twenty-five of this disclosure, a hub assembly according to any one of aspects twenty-one to twenty-four is constructed such that the first nut and the second nut are disposed inside the rotating body.

[0053] By utilizing the hub assembly according to aspect twenty-five, the hub assembly can be made more compact in the axial direction.

[0054] Furthermore, other objects, features, aspects, and advantages of the disclosed wheel assembly will become apparent to those skilled in the art from the following detailed description, wherein preferred embodiments of the wheel assembly are disclosed in conjunction with the accompanying drawings. Simple Explanation of the Diagram

[0055] Now refer to the accompanying diagrams that formed this original disclosure:

[0056] [Figure 1] is a side view of a human-powered vehicle (i.e., a bicycle) equipped with a wheel hub assembly (i.e., a bicycle wheel hub assembly) according to the first embodiment;

[0057] [Figure 2] is a longitudinal view of the wheel hub assembly of the human-powered vehicle body shown in Figure 1;

[0058] [Figure 3] is a perspective view of the wheel hub assembly shown in Figure 1;

[0059] [Figure 4] is an end view of the wheel hub assembly shown in Figures 2 and 3;

[0060] [Figure 5] is a longitudinal sectional view of the wheel assembly shown in Figures 2 to 4, as seen along section line 5-5 in Figure 4;

[0061] [Figure 6] is an enlarged longitudinal sectional view of a portion of the wheel hub assembly shown in Figure 5;

[0062] [Figure 7] is a perspective view of the wheel assembly shown in Figures 2 to 5, in which selected components have been removed to show the double nuts of the wheel hub axle mounted on the wheel assembly;

[0063] [Figure 8], similar to Figure 7, is a partial exploded perspective view of the wheel assembly shown in Figures 2 to 5, but in which the double nuts have been unscrewed from the wheel hub axle of the wheel assembly;

[0064] [Figure 9] is a perspective view of the tool used to install the double nuts onto the hub shaft of the hub assembly shown in Figures 2 to 5;

[0065] [Figure 10] is a side view of the rear derailleur and the wheel assembly shown in Figures 2 to 5 coupled to the body of the human-powered vehicle, wherein a cover has been provided on the body to cover the cable connecting the rear derailleur and the wheel assembly;

[0066] [Figure 11] is a longitudinal sectional view of the front wheel hub assembly of the human-powered vehicle shown in Figure 1; and

[0067] [Figure 12] is a longitudinal cross-sectional view of the modified wheel hub assembly used for the human-powered vehicle shown in Figure 1. Implementation

[0068] The selected embodiments will now be explained with reference to the drawings. Those skilled in the art of human-powered vehicles (e.g., bicycles) will understand from this disclosure that the following description of the embodiments is provided for illustrative purposes only and is not intended to limit the invention as defined by the appended claims and their equivalents.

[0069] Referring first to Figure 1, a hub assembly 10A is configured for a human-powered vehicle V. In other words, the human-powered vehicle V (i.e., a bicycle) is illustrated as being equipped with a hub assembly 10A according to the illustrated embodiment. Here, in the illustrated embodiment, the hub assembly 10A is a bicycle hub or a bicycle hub assembly. More precisely, the hub assembly 10A is a bicycle rear hub or a bicycle rear hub assembly. Also, here, in the illustrated embodiment, the hub assembly 10A is a hub-and-spoke generator (dynamo) for supplying electricity to one or more components of the human-powered vehicle V. However, the hub assembly 10A is not limited to a hub-and-spoke generator. In particular, certain aspects of the hub assembly 10A can be configured not to generate electricity. Also, although the hub assembly 10A is illustrated as a rear hub assembly, certain aspects of the hub assembly 10A can be configured as a hub assembly 10B of a front hub assembly. Therefore, the hub assembly 10A is not limited to a rear hub assembly.

[0070] Here, the human-powered vehicle V is an electric-assisted bicycle (electric bicycle). Alternatively, the human-powered vehicle V can be a road bicycle, city bicycle, cargo bicycle, recumbent bicycle, or another type of off-road bicycle such as a cyclocross bicycle. As shown in Figure 1, the human-powered vehicle V includes a frame VB supported by a rear wheel RW and a front wheel FW. The frame VB basically includes a front frame FB and a rear frame RB (swing arm). The frame VB also has handlebars H and a front fork FF for steering the front wheel FW. The rear frame RB is pivotally mounted to the rear section of the front frame FB, allowing the rear frame RB to pivot relative to the front frame FB. The rear wheel RW is mounted at the rear end of the rear frame RB. A rear shock absorber RS ​​is operatively mounted between the front frame FB and the rear frame RB. The rear shock absorber RS ​​is positioned between the front frame FB and the rear frame RB to control the movement of the rear frame RB relative to the front frame FB. That is, the rear frame RS absorbs vibrations transmitted from the rear wheel RW. The rear wheel RW is rotatably mounted to the rear frame RB. The front wheel FW is mounted to the front frame FB via the front fork FF. That is, the front wheel FW is mounted on the lower end of the front fork FF. The height-adjustable seatpost ASP is conventionally mounted to the seatpost of the front frame FB and supports the bicycle seat or saddle S in any suitable manner. The front fork FF is pivotally mounted to the head tube of the front frame FB. The handlebar H is mounted to the steering column or steering tube of the front fork FF. The front fork FF absorbs vibrations transmitted from the front wheel FW. Preferably, the rear shock RS and the front fork FF are electrically adjustable suspension devices. For example, the stiffness and / or travel of the rear shock RS and the front fork FF can be adjusted.

[0071] The human-powered vehicle V also includes a transmission system DT and an electric drive unit DU operatively coupled to the transmission system DT. Here, for example, the transmission system DT is a chain drive type including a crank C, a front sprocket FS, a plurality of rear sprockets CS, and a chain CN. The crank C includes a crankshaft CA1 and a pair of crank arms CA2. The crankshaft CA1 is rotatably supported on the front frame FB via the electric drive unit DU. The crank arms CA2 are located at opposite ends of the crankshaft CA1. The pedals PD are rotatably coupled to the distal end of each of the crank arms CA2. The transmission system DT can be of any type and can be either belt-drive or shaft-drive.

[0072] The electric drive unit DU has an electric motor that provides driving assistance force to the front sprocket FS. The electric drive unit DU can be actuated in a conventional manner to assist in the propulsion of the human-powered vehicle V. The electric drive unit DU is actuated, for example, by human driving force applied to the pedal PD. The electric drive unit DU is actuated by power supplied from the main battery pack BP, which is mounted on the downtube of the human-powered vehicle V. The main battery pack BP can supply power to other vehicle components, such as the rear derailleur RD, the height-adjustable seatpost ASP, the rear shock absorber RS, the front fork FF, and any other vehicle components that use electricity.

[0073] The human-powered vehicle V also includes a cycle computer (SC). Here, the cycle computer (SC) is mounted on the front frame (FB). Alternatively, the cycle computer (SC) can be mounted on the handlebars (H). The cycle computer (SC) notifies the rider of various travel and / or operating conditions of the human-powered vehicle V. The cycle computer (SC) can also include various control programs for automatically controlling one or more vehicle components. For example, the cycle computer (SC) can have an automatic shifting program to change the gear position of the rear derailleur (RD) based on one or more travel and / or operating conditions of the human-powered vehicle V.

[0074] Here, the human-powered vehicle V also includes a rear derailleur RD attached to the rear frame RB for shifting the chain CN between the rear sprockets CS. The rear derailleur RD is a type of shifting device. Here, the rear derailleur RD is an electric derailleur (i.e., an electric shifting device or an electric drive system). Here, the rear derailleur RD is located on the rear side of the rear frame RB near the rear of the wheel hub assembly 10A. The rear derailleur RD can be operated when the rider of the human-powered vehicle V manually operates the shifting device or the derailleur SL. The rear derailleur RD can also be operated automatically depending on the riding conditions and / or operating conditions of the human-powered vehicle V. The human-powered vehicle V may also include a plurality of electronic components. Some or all of the electronic components can be supplied with power generated by the wheel hub assembly 10A during power generation, as discussed herein.

[0075] The structure of the wheel assembly 10A will now be described with particular reference to Figures 2 to 5. The wheel assembly 10A basically comprises a hub axle 12 and a hub body 14. The hub axle 12 is configured to be non-rotatably attached to the vehicle body VB. In this embodiment, the hub axle 12 is configured to be non-rotatably attached to the rear frame body RB. The hub body 14 is rotatably mounted on the hub axle 12 to rotate about the rotational center axis A1 of the wheel assembly 10A. The hub body 14 is an example of a rotating body rotatably mounted on the hub axle 12 to rotate about the rotational center axis A1 of the wheel assembly 10A. The hub axle 12 has a central axis coaxial with the rotational center axis A1. The hub body 14 is arranged in a manner rotatable about the rotational center axis A1. In other words, the hub body 14 is mounted in a manner rotatable about the hub axle 12. The hub axle 12 is a rigid member made of a suitable material, such as a metal.

[0076] As shown in Figure 5, the hub shaft 12 has a first axial end 12a and a second axial end 12b. Here, the hub shaft 12 is a tubular member. Therefore, the hub shaft 12 has an axial inner hole 12c extending between the first axial end 12a and the second axial end 12b. The hub shaft 12 can be a single component or made of several pieces.

[0077] Here, as seen in Figures 2 and 5, the wheel hub assembly 10A also includes a wheel retaining mechanism 16 for securing the wheel hub axle 12 of the wheel hub assembly 10A to the rear frame RB. The wheel retaining mechanism 16 essentially includes a shaft or axle member 16a, a cam body 16b, a cam rod member 16c, and an adjusting nut 16d. The cam rod member 16c is attached to one end of the axle member 16a via the cam body 16b, while the adjusting nut 16d is screwed onto the other end of the axle member 16a. The cam rod member 16c is attached to the cam body 16b. The cam body 16b is coupled between the axle member 16a and the cam rod member 16c to move the axle member 16a relative to the cam body 16b. Therefore, the cam rod member 16c is operated to move the axle member 16a relative to the cam body 16b in the axial direction of the rotation center axis A1, thereby changing the distance between the cam body 16b and the adjusting nut 16d. Preferably, a compression spring is provided at each end of the axle 16a. The wheel retaining mechanism 16 is sometimes referred to as a quick-release axle. The wheel retaining mechanism 16 is typically used with a frame having a pair of U-shaped axle attachments, each with a slot for receiving a portion of the axle 16a. Alternatively, the hub axle 12 can be non-rotatably attached to the rear frame RB as needed and / or desired using other attachment structures.

[0078] As shown in Figures 1, 3, and 4, the hub body 14 is mounted in a rotatable manner about the hub axle 12, rotating in the drive rotation direction D1. The hub body 14 is a rigid member made of a suitable material such as metal or reinforced plastic. The drive rotation direction D1 corresponds to the forward drive direction of the rear wheel RW. The hub body 14 is configured to support the rear wheel RW in a conventional manner. More specifically, in the illustrated embodiment, the hub body 14 includes a first outer flange 14a and a second outer flange 14b. The first outer flange 14a and the second outer flange 14b extend radially outward from the peripheral surface of the hub body 14 relative to the rotation center axis A1. The first outer flange 14a and the second outer flange 14b are configured to receive a plurality of spokes (Figure 1) for attaching the rim (Figure 1) of the rear wheel RW to the hub body 14. In this way, the hub body 14 and the rear wheel RW are coupled to rotate together.

[0079] As shown in Figure 5, the hub body 14 has a large opening 14c for receiving the end wall 18 and the locking ring 20. The end wall 18 is non-rotatably engaged with the hub body 14. Here, for example, the end wall 18 has a splined outer peripheral surface 18a that engages with the splined inner surface 14d of the hub body 14. The end wall 18 is held in the hub body 14 by the locking ring 20. Here, for example, the locking ring 20 is screwed into the hub body 14. The end wall 18 has a splined inner peripheral surface 18b that spline-engages with the inner support 22. Specifically, the inner support 22 has an outer splined portion 22a that spline-engages with the splined inner peripheral surface 18b to non-rotatably couple the inner support 22 to the end wall 18. Therefore, the hub body 14, the end wall 18, the locking ring 20, and the inner support 22 rotate together as a unit around the hub shaft 12.

[0080] Here, the hub assembly 10A also includes a sprocket support 24, which is rotatably configured about a rotational axis A1 to transmit driving force to the hub body 14 when rotating in the driving rotation direction D1 about the rotational axis A1. The sprocket support 24 is another example of a rotating body, rotatably mounted on the hub body 12 to rotate about the rotational axis A1 of the hub body 10A. Therefore, broadly speaking, the hub assembly 10A includes a hub shaft 12 and a rotating body (e.g., the hub body 14 or the sprocket support 24). The rotating body (e.g., the hub body 14 and / or the sprocket support 24) is rotatably mounted on the hub shaft 12 to rotate about the rotational axis A1 of the hub assembly 10A. The sprocket support 24 is a rigid member made of a suitable material, such as a metal.

[0081] In the illustrated embodiment, the sprocket support 24 supports the rear sprocket CS seen in FIG. 2. The sprocket support 24 is configured to be rotatable about the rotation center axis A1, so as to transmit driving force to the hub body 14 when rotating in the driving rotation direction D1 about the rotation center axis A1. As explained below, the sprocket support 24 does not transmit driving force to the hub body 14 when rotating in the non-driving rotation direction D2 about the rotation center axis A1. The non-driving rotation direction D2 is opposite to the driving rotation direction D1 relative to the rotation center axis A1. The rotation center axis of the sprocket support 24 is set to be concentric with the rotation center axis A1 of the hub assembly 10A.

[0082] Although the sprocket support 24 is configured to non-rotatably support the rear sprocket CS, the sprocket support 24 is not limited to the illustrated embodiment. Alternatively, one or more of the rear sprockets CS can be integrally formed with the sprocket support 24. In any case, the sprocket support 24 and the rear sprocket CS are coupled together to rotate together in both the driving rotation direction D1 and the non-driving rotation direction D2.

[0083] As shown in Figure 5, the hub assembly 10A further includes a first bearing 30 and a second bearing 32. The first bearing 30 rotatably supports a first end of the hub body 14 onto the hub shaft 12. Specifically, the first bearing 30 rotatably supports an inner support body 22, which is fixedly coupled to the first end of the hub body 14 via an end wall 18. The second bearing 32 rotatably supports a second end of the hub body 14 onto the hub shaft 12. Here, the first bearing 30 also rotatably supports a sprocket support body 24 onto the hub shaft 12. Therefore, broadly speaking, the first bearing 30 rotatably supports the first end of a rotating body (e.g., the hub body 14 and / or the sprocket support body 24) onto the hub shaft 12, and the second bearing 32 rotatably supports the second end of a rotating body (e.g., the hub body 14 and / or the sprocket support body 24) onto the hub shaft 12.

[0084] Here, the hub assembly 10A also includes a double nut 34. The double nut 34 is screwed onto the hub shaft 12. Therefore, the double nut 34 restricts the axial movement of the hub body 14, sprocket support 24, and other components of the hub assembly 10A toward the first axial end 12a of the hub shaft 12 in the axial direction. The double nut 34 includes a first nut 36 and a second nut 38. Preferably, the first nut 36 and the second nut 38 are disposed inside a rotating body (e.g., the hub body 14 and / or the sprocket support 24). Here, the first nut 36 and the second nut 38 are disposed inside the sprocket support 24 (i.e., a rotating body).

[0085] In the illustrated embodiment, the first nut 36 is part of the first bearing 30. Specifically, the first nut 36 includes an inner race 30a of the first bearing 30. More precisely, the first bearing 30 includes an inner race 30a (first nut 36), an outer race 30b, and a plurality of roller elements 30c. The inner race 30a (first nut 36) has an internal thread 30a1, which is screwed into a first external thread 12d of the hub shaft 12. The outer race 30b has an internal thread 30b1, which is screwed into an external thread 22b of the inner support 22. The roller elements 30c are disposed between the inner race 30a and the outer race 30b. The inner race 30a (first nut 36) supports the plurality of roller elements 30c of the first bearing 30. Specifically, the first nut 36 has a bearing surface 36a that supports a plurality of roller elements 30c of the first bearing 30. The axial force on the roller elements 30c can be adjusted by changing the position of the inner race 30a on the hub shaft 12. The second nut 38 has an internal thread 38a that is screwed into a first external thread 12d of the hub shaft 12.

[0086] The second bearing 32 includes an inner race 32a, an outer race 32b, and a plurality of roller elements 32c. The inner race 32a is screwed into the second thread 12e of the hub shaft 12. The roller elements 32c are disposed between the inner race 32a and the outer race 32b. The inner race 32a supports the plurality of roller elements 32c of the second bearing 32. The axial force on the roller elements 32c can be adjusted by changing the position of the inner race 32a on the hub shaft 12.

[0087] The first bearing 30 and the second bearing 32 are angular contact ball bearings. Angular contact ball bearings have inner and outer ring raceways that are separated from each other in the direction of the bearing axis. In other words, angular contact ball bearings are configured to accommodate combined loads, i.e., simultaneous radial and axial loads. Furthermore, angular contact ball bearings (i.e., tapered roller bearings) can replace angular contact ball bearings in the first bearing 30 and the second bearing 32. Angular contact ball bearings include cylindrical roller bearings and needle roller bearings.

[0088] The first nut 36 has a first tool engagement structure 36b. The second nut 38 has a second tool engagement structure 38b. The first nut 36 and the second nut 38 are screwed into the external thread 12d of the hub shaft 12. The first tool engagement structure 36b and the second tool engagement structure 38b face outward in the axial direction relative to the rotation center axis A1. When viewed from the axial direction, the first tool engagement structure 36b is positioned radially outside the second tool engagement structure 38b relative to the rotation center axis A1.

[0089] The first tool engagement structure 36b and the second tool engagement structure 38b are axially accessible using the tool 40 (see FIG. 9). As shown in FIG. 9, the tool 40 has a first tool cylinder 40a and a second tool cylinder 40b. The second tool cylinder 40b is rotatably disposed inside the first tool cylinder 40a. The first tool cylinder 40a and the second tool cylinder 40b can rotate independently or together. The first tool cylinder 40a includes a first nut engagement structure 40a1, which is configured to engage the first nut 36 as a first tool engagement structure 36b. The second tool cylinder 40b includes a second nut engagement structure 40b1, which is configured to engage the second nut 38 as a second tool engagement structure 38b. Of course, other types of tools can be used as needed and / or desired.

[0090] The hub assembly 10A further includes a plurality of first roller elements 42 and a plurality of second roller elements 44. The first roller elements 42 and second roller elements 44 rotatably support the sprocket support body 24. The first roller elements 42 are disposed between the outer race 30b and the sprocket support body 24. Specifically, the outer race 30b has an inner race surface 42a, and the sprocket support body 24 has an outer race surface 42b. The first roller elements 42 are disposed between the inner race 42a and the outer race 42b to form a first sprocket support body bearing 46. The second roller elements 44 are disposed between the inner support body 22 and the sprocket support body 24. Specifically, the inner support body 22 has an inner race surface 44a, and the sprocket support body 24 has an outer race surface 44b. The second roller elements 44 are disposed between the inner race surface 44a and the outer race surface 44b to form a second sprocket support body bearing 48.

[0091] The first sprocket support bearing 46 and the second sprocket support bearing 48 are angular contact ball bearings. Alternatively, angular contact roller bearings (i.e., tapered roller bearings) can replace angular contact ball bearings in the first sprocket support bearing 46 and / or the second sprocket support bearing 48.

[0092] As shown in Figure 6, the hub assembly 10A further includes a one-way clutch 50 formed between the hub body 14 and the sprocket support 24. The one-way clutch 50 includes a plurality of pawls 50A disposed between the hub body 14 and the sprocket support 24. The one-way clutch 50 also includes a biasing member 50B that couples the pawls 50A to the sprocket support 24. The one-way clutch 50 also includes a plurality of ratchet teeth 50C. Here, the ratchet teeth 50C are disposed on the inner surface of the sprocket support 24. The biasing member 50B biases the pawls 50A to engage with the ratchet teeth 50C. The biasing member 50B presses the pawls 50A against the sprocket support 24, causing the pawls 50A to pivot toward engaging with the ratchet teeth 50C.

[0093] In this manner, the sprocket support 24 is coupled to the hub 14 so that they rotate together about the rotational axis A1 in the driving rotation direction D1. Furthermore, in the case where the sprocket support 24 rotates in the non-driving rotation direction D2, the ratchet teeth 50C of the sprocket support 24 push the pawl 50A and pivot the pawl 50A to a retracted position against the sprocket support 24. Therefore, the sprocket support 24 is configured to rotate relative to the hub 14 in the non-driving rotation direction D2 about the rotational axis A1. In this manner, the sprocket support 24 and the one-way clutch 50 form a freewheel commonly used in bicycles. Since the basic operation of a freewheel is quite well known, it will not be further discussed or illustrated here.

[0094] As shown in Figure 5, the hub assembly 10A includes an electrical component 52. The electrical component 52 is disposed on the hub shaft 12. Specifically, the electrical component 52 is non-rotatably disposed on the hub shaft 12. Therefore, the electrical component 52 is disposed in a manner that prevents it from rotating relative to the rotational center axis A1. In the illustrated embodiment, the electrical component 52 is disposed between the first bearing 30 and the second bearing 32. Preferably, the electrical component 52 is disposed within the hub body 14.

[0095] Here, the electrical assembly 52 includes a housing 54 non-rotatably disposed within the hub body 14. For example, in the illustrated embodiment, the housing 54 is keyed to the hub shaft 12 to prevent rotation of the housing 54 relative to the hub shaft 12. Essentially, the housing 54 includes a housing body 54A and a cover 54B. Here, the cover 54B can be attached to the housing body 54A by adhesive or welding. However, the cover 54B can be attached to the housing body 54A by threaded fasteners, rivets, etc. Preferably, the housing body 54A and the cover 54B are rigid members made of a suitable material. For example, the housing body 54A and the cover 54B are made of resin material. For example, the housing body 54A and the cover 54B can each be an injection-molded member.

[0096] Furthermore, the electrical component 52 includes a circuit board 56. The circuit board 56 is disposed within the housing 54. Specifically, the circuit board 56 is attached to the housing 54A. In this manner, the circuit board 56 cannot rotate relative to the hub shaft 12. The circuit board 56 is positioned perpendicular to the rotation center axis A1. A cover 54B is attached to the housing 54A to enclose the circuit board 56 within the housing 54.

[0097] The circuit board 56 also includes an electronic controller 58 disposed on the circuit board 56. The electronic controller 58 includes at least one processor executing a predetermined control program. The at least one processor may be, for example, a central processing unit (CPU) or a microprocessor unit (MPU). As used herein, the term "electronic controller" refers to hardware executing software programs and excludes human intervention. Preferably, the circuit board 56 also includes a data storage device (memory) disposed on the circuit board 56. The data storage device (memory) stores various control programs, including power generation control, power storage control, and hub rotation detection control. The data storage device includes any computer storage device or any non-transitory computer-readable medium, except for transient signal transmission. For example, the data storage device includes non-volatile memory and volatile memory. Non-volatile memory includes, for example, at least one of read-only memory (ROM), erasable programmable read-only memory (EPROM), electronically erasable programmable read-only memory (EEPROM), and flash memory. Volatile memory includes, for example, random access memory (RAM).

[0098] As shown in Figure 5, the hub assembly 10A also includes a detected component 60 and a rotation detection sensor 62. The rotation detection sensor 62 is configured to detect the detected component 60. The detected component 60 is disposed on a rotating body. Here, the detected component 60 is disposed on the end wall 18 of the hub body 14. On the other hand, the rotation detection sensor 62 is disposed on the housing 54. Here, the rotation detection sensor 62 is disposed at a position separate from the circuit board 56. Here, the rotation detection sensor 62 is disposed at a position separate from the circuit board 56 in a direction parallel to the rotation center axis A1. Therefore, the rotation detection sensor 62 is non-rotatably disposed on the hub shaft 12. Furthermore, the rotation detection sensor 62 can be placed close to the detected component 60. In other words, the rotation detection sensor 62 does not rotate with the hub body 14. With this configuration, the electrical component 52 includes the rotation detection sensor 62. Rotation detection sensor 62 is electrically connected to electronic controller 58 via circuit board 56. Electronic controller 58 is configured to receive detection signals from rotation detection sensor 62. Therefore, electronic controller 58 can determine information about the rotation of wheel hub 14 on wheel hub axle 12.

[0099] In the illustrated embodiment, the rotation detection sensor 62 includes a magnetic sensor, and the detected component 60 includes a magnet. Therefore, the magnetic sensor detects the movement of the magnet rotating together with the hub body 14. In other words, with this configuration, the rotation detection sensor 62 is configured to detect the detected component 60 to detect the rotation of the hub body 14 about the rotation center axis A1. The electronic controller 58 is configured to receive the detection signal from the rotation detection sensor 62.

[0100] Here, the magnet of the detected component 60 is a ring-shaped member with staggered S-pole and N-pole sections. The detected component 60 is fixed to the end wall 18 of the hub body 14. In this way, the rotation detection sensor 62 can detect the amount and direction of rotation of the hub body 14. However, the detected component 60 is not limited to the ring-shaped member shown. For example, the detected component can be formed as a single non-ring-shaped magnet or two or more magnets circumferentially spaced around the rotation center axis A1. In the case of using two or more circumferentially spaced magnets, a back yoke can be provided, and the circumferentially spaced magnets can be provided on the back yoke. In this way, the circumferentially spaced magnets can be easily provided in the hub 10. As used herein, "sensor" refers to a hardware device or instrument that is configured to detect the appearance or absence of a particular event, object, or substance, or a change in its environment, and responds by emitting a signal. As used herein, "sensor" does not include humans.

[0101] As shown in Figure 5, the hub assembly 10A also includes a generator 70. The generator 70 is configured to generate electricity by the rotation of the hub body 14. Furthermore, in the illustrated embodiment, the electrical component 52 includes at least one capacitor 72 electrically connected to the generator 70. Here, the electrical component 52 includes two capacitors 72. The capacitors 72 are examples of power storage devices for the electrical component 52. The capacitors 72 are preferably housed within the housing 54 of the hub assembly 10A. Thus, the capacitors 72 are non-rotatably supported on the hub axle 12 by means of the housing 54. The circuit board 56 is electrically connected to the rotation detection sensor 62 and the capacitors 72. In this way, the capacitors 72 supply power to the circuit board 56 and other electrical components connected to the circuit board 56. For example, the capacitors 72 supply power to the rotation detection sensor 62. Furthermore, the electronic controller 58 of the circuit board 56 is configured to control the input and output of power from the capacitors 72.

[0102] A generator 70 is disposed on the wheel hub 14. More specifically, the generator 70 is disposed on the wheel hub 14, between the hub axle 12 and the central portion of the wheel hub 14. In the illustrated embodiment, the wheel hub 14 is rotatably mounted on the axle 12 to rotate about the rotational center axis A1 of the generator 70. The generator 70 is configured to generate electricity by the rotation of the wheel hub 14 relative to the hub axle 12. An electronic controller 58 of the circuit board 56 is electrically connected to the generator 70 to control the power output of the generator 70. Therefore, the power generated by the generator 70 can be stored and / or directly supplied to other components such as the rotation detection sensor 62, the rear derailleur RD, etc.

[0103] In the illustrated embodiment, the generator 70 further includes a stator 74 and a rotor 76. The stator 74 is not rotatable relative to the hub shaft 12. On the other hand, the rotor 76 is rotatably mounted on the hub shaft 12 to rotate about the rotational center axis A1 of the generator 70. Specifically, the rotor 76 is disposed on the hub body 14 to rotate with the hub body 14. Therefore, when the hub body 14 rotates relative to the hub shaft 12, the rotor 76 rotates relative to the stator 74 for power generation. That is, an induced electromotive force is generated on the stator 74 by the rotation of the rotor 76, and current flows out of the stator 74 of the generator 70.

[0104] As shown in Figure 5, the stator 74 includes an armature mounted on the hub shaft 12. The armature of the stator 74 includes a winding coil 74A and a bobbin 74B. The winding coil 74A is wound around the bobbin 74B to support the winding coil 74A. The bobbin 74B is non-rotatably coupled to the hub shaft 12. The bobbin 74B has a cylindrical trunk portion, a first flange portion, and a second flange portion. The cylindrical trunk portion has an outer periphery on which the winding coil 74A is wound. The first flange portion and the second flange portion are formed on two axial end portions of the cylindrical trunk portion. The winding coil 74A is made of a conductive metal wire material such as copper wire or aluminum alloy wire. The winding coil 74A is electrically connected to a circuit board 56. In this way, the power generated in the winding coil 74A is transmitted to the circuit board 56 of the electrical assembly 52. The circuit board 56 then rectifies the power received from the winding 74A to selectively store the power in the capacitor 72 and / or selectively transmit the power out of the hub assembly 10A via the cable 78.

[0105] Cable 78 is electrically connected to generator 70 via circuit board 56. In this way, cable 58 can supply power generated by hub assembly 10A to rear derailleur RD, battery pack BP, or another electrical component. Cable 78 can also be used to transmit signals from electronic controller 58 of circuit board 56 to rear derailleur RD or another electrical component via power line communication (PLC).

[0106] The armature of the stator 74 includes a plurality of first yokes 74C and a plurality of second yokes 74D. The first yokes 74C are arranged in the circumferential direction of the hub shaft 12. Similarly, the second yokes 74D are arranged in the circumferential direction of the hub shaft 12 and are staggered with the first yokes 74C. The winding 74A is located between the first yokes 74C and the second yokes 74D in the axial direction of the hub shaft 12. Here, the first yokes 74C and the second yokes 74D are adapted to grooves in the wire frame 74B such that the first yokes 74C and the second yokes 74D are staggered in the circumferential direction about the rotation center axis A1. The first yokes 74C and the second yokes 74D can be attached to the wire frame 74B, for example, by means of an adhesive.

[0107] Each of the first yokes 74C can be a laminated yoke made of a plurality of laminations or a single piece. In the case of a laminated yoke, the laminations of the first yoke 74C are laminated together in a circumferential direction about the rotational central axis A1. The laminations of the first yoke 74C are made, for example, of silicon steel sheets (more precisely, non-directional silicon steel sheets), and an oxide film has been formed on the surface of the silicon steel sheets. The laminations of the first yoke 74C are examples of plate-like members.

[0108] Similarly, the second yoke 74D can be a laminated yoke made of multiple laminations or a single piece. In the case of a laminated yoke, the laminations of the second yoke 74D are stacked together in a circumferential direction about the rotational axis A1. The laminations of the second yoke 74D are made, for example, of silicon steel sheets (more precisely, non-directional silicon steel sheets), and an oxide film has been formed on the surface of the silicon steel sheets. The laminations of the second yoke 74D are examples of plate-like members.

[0109] The rotor 76 includes at least one magnet. Here, in the illustrated embodiment, the rotor 76 includes a plurality of first magnet components 76A and a plurality of second magnet components 76B disposed inside a tubular support 76C. The tubular support 76C is fixedly coupled to the interior of the hub body 14 such that the magnet (rotor 76) and the hub body 14 rotate together about the hub shaft 12. The tubular support 76C functions as a yoke. The yoke is a component with high magnetic flux. By using the yoke, a high generated magnetic field can be obtained. The tubular support 76C can be omitted. Alternatively, the hub body 14 can have a magnet (rotor 76) such that the hub body 14 partially forms the generator 70. The first magnet components 76A and the second magnet components 76B are arranged such that the S and N poles of the first magnet components 76A and the second magnet components 76B are alternately arranged in the circumferential direction of the hub shaft 12. Therefore, in the axial direction of the hub shaft 12, the S pole of the first magnet component 76A is not aligned with the S pole of the second magnet component 76B, and the N pole of the first magnet component 76A is not aligned with the N pole of the second magnet component 76B.

[0110] As mentioned above, winding 74A is shown as being fixed relative to hub shaft 12, and magnet (rotor 76) is shown as being fixed relative to hub body 14. Alternatively, winding 74A can be fixed relative to hub body 14, and magnet (rotor 76) can be fixed relative to hub shaft 12.

[0111] The hub assembly 10A includes a user input device 80. The user input device 80 can be, for example, a reset switch that forces power off the electrical component 52. Alternatively, the user input device 80 can be configured to change one or more parameters, such as a threshold. Here, the user input device 80 is a push-button switch including an actuated member 80A and a base member 80B. The actuated member 80A is movable relative to the base member 80B. The base member 80B includes circuitry normally in an on or off state. The on or off state of the circuitry is changed to another state in response to movement of the actuated member 80A relative to the base member 80B (e.g., pressed in the illustrated embodiment).

[0112] When a user operates (e.g., presses) the operated member 80A, an input signal is generated and transmitted to the electrical component 52 via cable 82. In this way, the user input device 80 is electrically coupled to the electrical component 52. Specifically, in the illustrated embodiment, the user input device 80 is electrically connected to the circuit board 56 via cable 82. In this way, the user input device 80 is electrically connected to the circuit board 56. With this configuration, the user input device 80 does not include a wireless communication receiver. In the illustrated embodiment, the hub axle has a cable receiving channel 12f for receiving the cable 82. The cable receiving channel 12f extends axially between the electrical component 52 and the user input device 80. Therefore, the user input device 80 is axially spaced relative to the electrical component 52.

[0113] The user input device 80 is configured to be operated by the user without disassembling the hub assembly 10A. Preferably, the user input device 80 is configured to be operated by the user when the hub assembly 10A is mounted on the body VB of the human-powered vehicle V. Here, the user input device 80 is located outside the hub body 14. Specifically, the user input device 80 is located inside the sprocket support 24. Preferably, the user input device 80 is located between the first bearing 30 and the axial end 12a of the hub shaft 12. Preferably, the user input device 80 is located axially outside the double nut 34 relative to the rotation center axis A1, and is at least partially aligned with the double nut 34 in the axial direction. Preferably, the first tool engagement structure 36b is located radially outside the user input device 80. More preferably, the second tool engagement structure 38b is located radially outside the user input device 80. In this manner, the user input device 80 is operated by the user. The user input device 80 is an electrical component (e.g., an electrical switch) located at a first axial end 12a adjacent to the hub shaft 12. Alternatively, the user input device 80 (and the electrical component) can be located at a second axial end 12b adjacent to the hub shaft 12. Thus, more broadly, in the hub assembly 10A, the electrical component 52 is located on the axially outer side of the double nut 34 relative to the rotation center axis A1, adjacent to the axial end of the hub shaft 12.

[0114] Here, as shown in FIG5, the hub assembly 10A further includes an end cap 84 disposed on the axial end of the hub shaft 12. The end cap 84 is disposed on the first axial end 12a of the hub shaft 12. The end cap 84 supports the user input device 80 on the hub shaft 12. The user input device 80 is operably accessible through the opening 84a in the end cap 84. Furthermore, the cable 78 enters the hub assembly 10A through the opening 84b of the end cap 84. The cable 78 then extends axially along the hub shaft 12 and enters the housing 54 of the electrical component 52. Preferably, in the illustrated embodiment, the cable 78 is disposed in the cable receiving channel 12g of the hub shaft 12 as shown in FIG5. Here, the cable receiving channel 12g is an axially extending recess or groove. In this way, the cable 78 can be positioned in the cable receiving channel 12g extending from the electrical component 52 to the first axial end 12a of the hub shaft 12.

[0115] The end cap 84 also includes a rotation limiting member 84c. The rotation limiting member 84c is configured to couple the hub axle 12 to the vehicle body VB of the human-powered vehicle V, such that rotation of the hub axle 12 relative to the vehicle body VB is limited. The rotation limiting member 84c engages with the rear frame body RB, such that rotation of the hub axle 12 relative to the rear frame body RB is limited. Therefore, the rotation limiting member 84c is removably attached to the hub axle 12.

[0116] Referring now to Figure 10, the wheel assembly 10A is electrically connected to the rear derailleur RD via cable 78. Optionally, a cover 90 is snap-fitted to the rear frame RB or covers a U-shaped axle attachment, each U-shaped axle attachment having a slot or recess for receiving a portion of the axle 16a. Therefore, the wheel assembly 10A cannot be removed from the rear frame RB without removing the cover 90. Removing the cover 90 serves as a reminder to the user to disconnect cable 78 from the rear derailleur RD before removing the wheel assembly 10A from the rear frame RB. The same configuration can be used for other electrical components besides the rear derailleur RD.

[0117] Referring now to Figure 11, the hub assembly 10B will be briefly discussed. Similar to the hub assembly 10A, the hub assembly 10B is a hub DC generator used to supply electricity to one or more components of the human-powered vehicle V. The structure of the hub assembly 10B is the same as that of the hub assembly 10A, except that the hub assembly 10B is not constructed with a sprocket support structure. Therefore, for the sake of simplicity, components of the hub assembly 10B that are identical to corresponding components of the hub assembly 10A will not be discussed again for the hub assembly 10B. Therefore, the following description will focus on the differences between the hub assembly 10B and the hub assembly 10A.

[0118] Basically, the wheel assembly 10B includes a hub shaft 12' and a hub body 14'. The hub body 14' is rotatably mounted on the hub shaft 12' to rotate about the rotation center axis A1' of the wheel assembly 10B. The wheel assembly 10B also includes a wheel retaining mechanism 16' that is the same as the wheel retaining mechanism 16 but shorter in the axial direction.

[0119] The hub assembly 10B further includes a first bearing 30' and a second bearing 32'. The first bearing 30' rotatably supports a first end of the hub body 14' on a hub shaft 12'. Specifically, the first bearing 30' rotatably supports the end wall 18' of the hub body 14'. The second bearing 32' rotatably supports a second end of the hub body 14' on the hub shaft 12'. Here, the hub assembly 10B also includes a double nut 34'. The double nut 34' is screwed onto the hub shaft 12'. The double nut 34' includes a first nut 36' and a second nut 38'. Preferably, the first nut 36' and the second nut 38' are at least partially disposed inside the hub body 14' (i.e., the rotating body). Here, the first nut 36' is, similar to the first embodiment, part of the first bearing 30'. Specifically, the first nut 36' includes the inner race of the first bearing 30'. More specifically, the first bearing 30' includes an inner race 30a' (first nut 36'), an outer race 30b', and a plurality of roller elements 30c'. The inner race 30a' (first nut 36') is screwed onto the hub shaft 12'. The outer race 30b' supports the end wall 18' of the hub shaft 12'. The roller elements 30c' are disposed between the inner race 30a' and the outer race 30b'.

[0120] Similar to hub assembly 10A, hub assembly 10B also includes electrical component 52', generator 70', and user input device 80'. Electrical component 52' is the same as the electrical component 52 discussed above. Generator 70' is the same as the generator 70 discussed above. User input device 80' is the same as the user input device 80 discussed above. However, a modified end cap 84' is used to mount user input device 80' to hub axle 12'. Here, end cap 84' is constructed so that the cable 78' of electrical component 52' extends upward from hub axle 12' when hub assembly 10B is mounted on human-powered vehicle V.

[0121] Referring now to FIG12, a modified wheel assembly 110 according to an alternative embodiment is illustrated. Given the similarity between wheel assembly 110 and wheel assembly 10A, components in wheel assembly 110 that are identical to those in wheel assembly 10A will be given the same element designations used in wheel assembly 10A. Therefore, the following description will focus on the differences between wheel assembly 110 and wheel assembly 10A.

[0122] Basically, the hub assembly 110 includes a hub shaft 112 and a hub body 114. The hub body 114 is rotatably mounted on the hub shaft 112 to rotate about the rotational center axis A1 of the hub assembly 110. Here, the hub shaft 112 and hub body 114 have been modified to include an electrical component 152 and a user input device 180 when the user input device 180 is disposed in the hub body 114. Therefore, in this embodiment, the user input device 180 is disposed inside the hub body 114. As the hub body 114 rotates relative to the electrical component 152, the user input device 180 will rotate with the hub body 114. The user input device 180 can be electrically connected to the electrical component 152 by means of a mechanical connection, wherein a brush disposed on one of the electrical component 152 and the user input device 180 rotates relative to a resistor disposed on the other of the electrical component 152 and the user input device 180. Alternatively, short-range wireless communication can be used to transmit input signals from user input device 180 to electrical component 152.

[0123] In understanding the scope of this invention, the term "comprising" and its derivatives are intended as open-ended terms defining the appearance of the stated features, elements, components, groups, integers, and / or steps, but do not exclude the appearance of other unstated features, elements, components, groups, integers, and / or steps. The foregoing also applies to words with similar meanings, such as the terms "comprising," "having," and their derivatives. Furthermore, the terms "part," "section," "section," "component," or "element," when used in the singular, can have a dual meaning of a single component or a plurality of components, unless otherwise stated.

[0124] The following directional terms used herein, "facing the frame side," "not facing the frame side," "forward," "backward," "front," "back," "up," "down," "above," "below," "upward," "downward," "top," "bottom," "side," "vertical," "horizontal," "vertical," and "cross-section," and any other similar directional terms, refer to those directions of a human-powered vehicle (e.g., a bicycle) in an upright riding position equipped with a hub assembly. Therefore, these directional terms used to describe the hub assembly should be interpreted relative to a human-powered vehicle (e.g., a bicycle) in an upright riding position equipped with a hub assembly on a horizontal surface. The terms "left" and "right" are used to indicate "right" when viewed from the rear of the human-powered vehicle (e.g., a bicycle) with reference to the right side, and to indicate "left" when viewed from the rear of the human-powered vehicle (e.g., a bicycle) with reference to the left side.

[0125] The term "at least one of" as used in this disclosure means "one or more" desired choices. In one example, if the number of choices is two, "at least one of" as used in this disclosure means "only one single choice" or "both choices". In another example, if the number of choices is equal to or greater than three, "at least one of" as used in this disclosure means "only one single choice" or "any combination of two choices". Furthermore, the term "and / or" as used in this disclosure means "either one or both".

[0126] Furthermore, it will be understood that although the terms "first" and "second" may be used herein to describe various different components, these components should not be limited by these terms. These terms are used only to distinguish one component from another. Thus, for example, the first element discussed above may be referred to as the second element without departing from the teachings of the invention, and vice versa.

[0127] The terms "attached" and "attached" as used herein encompass: a configuration in which one element is directly secured to another element by directly fixing it to the other; a configuration in which one element is indirectly secured to another element by fixing it to an intermediate member, which in turn is fixed to the other element; and a configuration in which one element and another element are integrally formed (i.e., one element is essentially part of another element). This definition also applies to words with similar meanings, such as: "joined," "connected," "coupled," "installed," "combined," "fixed," and their derivatives. Finally, degree terms such as "substantially," "approximately," and "approximately" as used herein indicate a degree of variation in the modified terms such that the final result is not significantly altered.

[0128] Although only selected embodiments have been chosen to illustrate the invention, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the scope of the invention as defined in the appended claims. For example, unless explicitly stated otherwise, the size, shape, position, or orientation of various components can be changed as needed and / or desired, provided that such changes do not materially affect their intended function. Unless explicitly stated otherwise, components shown as directly connected or in contact with each other can have an intermediate structure disposed between them, provided that such changes do not materially affect their intended function. The function of one element can be performed by two elements, and vice versa, unless explicitly stated otherwise. The structure and function of one embodiment can be adopted in another embodiment. All advantages need not be presented simultaneously in a particular embodiment. Each feature that is unique to the prior art, whether alone or in combination with other features, should also be considered a separate description of the applicant's further invention, including the structural and / or functional concepts embodied by such features. Therefore, the foregoing description of embodiments of the present invention is for illustrative purposes only and is not intended to limit the invention as defined by the appended patent claims and their equivalents.

[0129] 10A: Wheel Assembly 10B: Wheel Assembly 12: Wheel hub axle 12a: First axial end 12b: Second axial end 12c: Axial inner hole 12d: First external thread 12e: Second thread 12f: Cable receiving channel 12g: Cable receiving channel 12': Hub axle 14: Wheel hub body 14a: First outer flange 14b: Second outer flange 14c: Large opening 14d: Inner surface with splines 14': Wheel hub body 16: Wheel retaining mechanism 16a: Shaft 16b: Cam body 16c: Cam lever 16d: Adjusting nut 16': Wheel retaining mechanism 18:End wall 18a: Outer peripheral surface with splines 18b: Inner peripheral surface with splines 18':end wall 20: Locking ring 22: Internal support 22a: External spline portion 22b: External thread 24: Sprocket support body 30: First bearing 30a: Inner seat ring 30a1: Internal thread 30b: Outer seat ring 30b1: Internal thread 30c: Roller element 30': First bearing 30a': Inner seat ring 30b': Outer seat ring 30c': Roller element 32: Second bearing 32a: Inner seat ring 32b: Outer seat ring 32c: Roller element 32': Second bearing 34: Double Nut 34': Double Nut 36: First Nut 36a: Bearing surface 36b: First tooling joint structure 36': First nut 38: Second nut 38a: Internal thread 38b: Second tool engagement structure 38': Second nut 40: Tools 40a: First tool cylinder 40a1: First nut engagement structure 40b: Second tool cylinder 40b1: Second nut engagement structure 42: First roller element 42a: Inner seat surface 42b: Outer ring surface 44: Second roller element 44a: Inner seat surface 44b: Outer ring surface 46: First sprocket support bearing 48: Second sprocket support bearing 50: One-way clutch 50A: Ratchet 50B: Eccentrically loaded component 50C: Ratchet teeth 52: Electrical components 52': Electrical components 54: Outer shell 54A: Outer shell 54B: Cover piece 56: Circuit Board 58: Electronic Controller 60: Detected component 62: Rotation Detection Sensor 70: Generator 70': Generator 72: Capacitor 74: Stator 74A: Winding 74B: Wireframe 74C: First yoke 74D: Second yoke 76: Rotor 76A: First magnet component 76B: Second magnet component 76C: Tubular support component 78: Cable 80: User input device 80A: Operated component 80B: Base component 80': User input device 82: Cable 84: End Cap 84a: Opening 84b: Opening 84c: Rotation limiting component 84': End Cap 90: Covering component 110: Wheel Assembly 112: Hub axle 114: Wheel hub body 152: Electrical Components 180: User input device A1: Rotation center axis A1': Rotation center axis ASP: Height-adjustable support column BP: Main Battery Pack C: Crankshaft CA1: Crankshaft CA2: Crank arm CN: Chain CS: Rear sprocket D1: Direction of rotation D2: Non-driving rotation direction DT: Transmission System DU: Electric drive unit FB: Front chassis FF: Front Fork FS: Front sprocket FW: Front wheel H: Handlebar PD: Pedal RB: Rear frame RD: Rear derailleur RS: Rear shock absorber RW: Rear wheel S: Saddle SC: Bicycle Computer SL: Transmission V: Human-powered vehicles VB: Vehicle body

Claims

1. A wheel hub assembly for a human-powered vehicle, the wheel hub assembly comprising: a hub shaft; a hub body rotatably mounted on the hub shaft for rotation about a rotational central axis of the wheel hub assembly; an electrical component; and a user input device electrically coupled to the electrical component.

2. The wheel hub assembly for a human-powered vehicle as described in claim 1, wherein the electrical component includes a circuit board, and wherein the user input device is electrically connected to the circuit board.

3. The wheel hub assembly for a human-powered vehicle as described in claim 1, wherein the electrical component is configured in a manner that prevents rotation relative to the axis of rotation.

4. The wheel hub assembly for a human-powered vehicle as described in claim 1, wherein the electrical component is disposed in the wheel hub body.

5. The wheel hub assembly for a human-powered vehicle as described in claim 1, wherein the user input device is spaced apart in the axial direction from the electrical component.

6. The wheel hub assembly for a human-powered vehicle as described in claim 1, wherein the user input device does not include a wireless communication receiver.

7. The hub assembly for a human-powered vehicle as claimed in claim 1, wherein the hub axle includes a cable receiving channel extending axially between the electrical component and the user input device.

8. The wheel hub assembly for a human-powered vehicle as claimed in claim 1, further comprising a first bearing that rotatably supports a first end of the wheel hub body on the wheel hub axle; and a second bearing that rotatably supports a second end of the wheel hub body on the wheel hub axle, wherein the electrical component is disposed between the first bearing and the second bearing, and the user input device is disposed between the first bearing and the axial end of the wheel hub axle.

9. The wheel hub assembly for a human-powered vehicle as described in claim 1, wherein the user input device is disposed outside the wheel hub body.

10. The wheel hub assembly for a human-powered vehicle as described in claim 1, wherein the user input device is disposed inside the wheel hub body.

11. The wheel hub assembly for a human-powered vehicle as described in claim 1, further comprising a sprocket support body rotatable about the rotational axis, so as to transmit driving force to the wheel hub body when rotating in the driving rotational direction about the rotational axis.

12. The wheel hub assembly for a human-powered vehicle as described in claim 11, wherein the user input device is disposed inside the sprocket support.

13. The wheel hub assembly for a human-powered vehicle as claimed in claim 1, further comprising an end cap disposed on the axial end of the wheel hub shaft, and the user input device being operably accessible through an opening in the end cap.

14. The wheel hub assembly for a human-powered vehicle as claimed in claim 13, wherein the end cap includes a rotation limiting member configured to couple the wheel hub shaft to the body of the human-powered vehicle such that rotation of the wheel hub shaft relative to the body is limited.

15. The wheel hub assembly for a human-powered vehicle as claimed in claim 1, further comprising a double nut including a first nut having a first tool engagement structure and a second nut having a second tool engagement structure, wherein the first nut and the second nut are threadedly engaged with the external threads of the wheel hub shaft, the first tool engagement structure and the second tool engagement structure being outwardly oriented in the axial direction, and the first tool engagement structure being positioned radially outward of the second tool engagement structure relative to the axis of rotation when viewed from the axial direction.

16. The wheel hub assembly for a human-powered vehicle as claimed in claim 15, wherein the user input device is located axially outside the double nut relative to the axis of rotation, and is at least partially aligned with the double nut in the axial direction.

17. The wheel hub assembly for a human-powered vehicle as claimed in claim 15, wherein the first tool engagement structure and the second tool engagement structure are accessible in the axial direction by a tool.

18. The wheel hub assembly for a human-powered vehicle as claimed in claim 15, further comprising a first bearing that rotatably supports a first end of the wheel hub body on the wheel hub shaft; and a second bearing that rotatably supports a second end of the wheel hub body on the wheel hub shaft, wherein the first nut includes an inner race of a plurality of roller elements supporting the first bearing.

19. The wheel hub assembly for a human-powered vehicle as described in claim 1, further comprising a generator disposed on the wheel hub body and configured to generate electricity by rotation of the wheel hub body.

20. The wheel hub assembly for a human-powered vehicle as described in claim 19, wherein the electrical component includes at least one capacitor electrically connected to the generator.

21. A hub assembly for a human-powered vehicle, the hub assembly comprising: a hub shaft; a rotating body rotatably mounted on the hub shaft for rotation about a rotational central axis of the hub assembly; a double nut including a first nut having a first tool engagement structure and a second nut having a second tool engagement structure, the first nut and the second nut being externally threadedly engaged with the hub shaft, the first tool engagement structure and the second tool engagement structure being outwardly oriented in an axial direction relative to the rotational central axis; and a user input device located on the axially outer side of the double nut relative to the rotational central axis, adjacent to the axial end of the hub shaft, the first tool engagement structure being radially outer side of the second tool engagement structure relative to the rotational central axis when viewed from the axial direction.

22. The wheel hub assembly for a human-powered vehicle as described in claim 21 further includes an electrical component disposed on the wheel hub axle.

23. The wheel hub assembly for a human-powered vehicle as described in claim 22, further comprising a detected component disposed on the rotating body, and a rotation detection sensor configured to detect the detected component, the electrical assembly including the rotation detection sensor.

24. The wheel hub assembly for a human-powered vehicle as claimed in claim 21, further comprising a first bearing that rotatably supports a first end of the rotating body on the wheel hub shaft; and a second bearing that rotatably supports a second end of the rotating body on the wheel hub shaft, wherein the first nut includes an inner race of the first bearing.

25. The wheel hub assembly for a human-powered vehicle as described in claim 21, wherein the first nut and the second nut are disposed inside the rotating body.

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