Hub assembly for human-powered vehicles

Abstract

A hub assembly for a human-powered vehicle is provided. The hub assembly includes a hub axle, a hub body, a cable, and a cable protector. The hub axle has a first axial end and a second axial end. The hub body is rotatably mounted on the hub axle to rotate about a rotational center axis of the hub assembly. The cable has a first portion disposed within the hub assembly and a second portion disposed outside the hub assembly. The cable protector is movably arranged between a first position and a second position. The second portion of the cable extends along the rotational center axis when the cable protector is in the first position. When the cable protector is in the second position, the second portion of the cable is at least partially confined to a position at an angle relative to the rotational center axis.

Description

Technical Field

[0001] The present disclosure generally relates to hub assemblies for human powered vehicles. Background Art

[0002] Some wheels for human-powered vehicles, such as bicycles, have a hub, a plurality of spokes, and an annular rim. The hub has a hub axle that is non-rotatably mounted to the frame of the human-powered vehicle. The hub has a hub body coaxially connected to the hub axle, such that the hub body is disposed radially outward relative to the hub axle. Bearings are constructed and arranged to support the hub body so that the hub body can rotate freely about the hub axle. In almost all types of bicycles, except fixed-gear and track-type racing bicycles, the bicycle wheel, typically the rear wheel, is provided with a bicycle flywheel mounted on the wheel hub. Bicycle flywheels typically have a one-way clutch function, transmitting torque in only one direction. Thus, the use of a flywheel allows the bicycle to move forward freely without any rotation of the pedals (i.e., during coasting). During coasting, the bicycle flywheel is considered to be in a freewheeling state, in which the bicycle wheel can rotate freely while the sprocket remains stationary. Summary of the Invention

[0003] In general, the present disclosure relates to various features of a hub assembly for a human-powered vehicle. The term "human-powered vehicle" as used herein refers to a vehicle that can be driven at least by human power, but does not include vehicles that use a driving force other than human power. In particular, vehicles that use only an internal combustion engine as a driving force are not included in human-powered vehicles. Human-powered vehicles are generally considered to be a compact, lightweight vehicle that sometimes does not require a license to be driven on public roads. The number of wheels of a human-powered vehicle is not limited. 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, etc., and electric-assisted bicycles (E-bikes).

[0004] In view of the current state of the prior art, according to a first aspect of the present disclosure, a hub assembly for a human-powered vehicle is provided. The hub assembly basically includes a hub axle, a hub body, a cable and a cable protector. The hub axle has a first axial end and a second axial end. The hub body is rotatably mounted on the hub axle to rotate around a rotational center axis of the hub assembly. The cable has a first portion arranged inside the hub assembly and a second portion arranged outside the hub assembly. A cable protector is movably arranged between a first position and a second position relative to the hub axle. When the cable protector is in the first position, the second portion of the cable extends along the rotational center axis. When the cable protector is in the second position, the second portion of the cable is at least partially confined to a position at an angle relative to the rotational center axis.

[0005] With the hub assembly according to the first aspect, the cable can be pulled along the rotational center axis of the hub assembly with the cable protector in the first position, but the cable can be restricted from moving along the rotational center axis of the hub assembly with the cable protector in the second position.

[0006] In accordance with a second aspect of the present disclosure, the hub assembly according to the first aspect is configured so that the cable protector is pivotally mounted relative to the hub axle between the first position and the second position.

[0007] With the hub assembly according to the second aspect, the cable protector can be easily moved between the first position and the second position.

[0008] According to a third aspect of the present disclosure, the hub assembly according to the second aspect is configured so that the cable protector has a pivot axis extending in a twisted or intersecting relationship with respect to the rotational center axis of the hub main body.

[0009] With the hub assembly according to the third aspect, the cable protector can be compactly arranged.

[0010] According to a fourth aspect of the present disclosure, the hub assembly according to any one of the first to third aspects is configured so that the cable protector is a wire.

[0011] With the hub assembly according to the fourth aspect, the cable protector can be manufactured easily and at low cost.The cable protector may be elastic.

[0012] According to a fifth aspect of the present disclosure, the hub assembly according to any one of the first to fourth aspects is configured so that the first portion of the cable at least partially extends along the rotational center axis.

[0013] With the hub assembly according to the fifth aspect, when the cable protector is in the first position, the cable can be pulled along the rotational center axis of the hub assembly.

[0014] According to a sixth aspect of the present disclosure, the hub assembly according to the fourth aspect is configured such that, when a reference plane completely contains the rotation center axis and is perpendicular to the pivot axis of the cable protector, the wire has a first end arranged on a first side of the reference plane and a second end arranged on a second side of the reference plane.

[0015] With the hub assembly according to the sixth aspect, the cable can be reliably restrained with the cable protector in the second position.

[0016] According to a seventh aspect of the present disclosure, the hub assembly according to any one of the first to sixth aspects further includes a rotation limiting portion configured to be arranged between the hub axle and the frame of the human-powered vehicle so that rotation of the hub axle relative to the frame is limited.

[0017] With the hub assembly according to the seventh aspect, the hub assembly can be easily mounted in an appropriate direction.

[0018] In accordance with an eighth aspect of the present disclosure, the hub assembly according to the seventh aspect is configured so that the rotation restricting portion is detachably attached to the hub axle.

[0019] With the hub assembly according to the eighth aspect, the rotation restricting member can be manufactured easily and at low cost, and mounted in an appropriate direction relative to the cable. The rotation restricting member can be easily replaced.

[0020] According to a ninth aspect of the present disclosure, the hub assembly according to the seventh or eighth aspect is configured so that the rotation restricting portion includes a cable guiding structure configured to guide the second portion of the cable in a direction angled relative to the rotation center axis.

[0021] With the hub assembly according to the ninth aspect, the cables can be appropriately guided to avoid interference with other components of the human-powered vehicle.

[0022] In accordance with a tenth aspect of the present disclosure, the hub assembly according to the ninth aspect is configured so that the cable guiding structure is further configured to guide the cable in a radial direction of the hub axle.

[0023] With the hub assembly according to the tenth aspect, the cables can be guided to avoid contact with other components of the human-powered vehicle.

[0024] In accordance with an eleventh aspect of the present disclosure, the hub assembly according to the ninth aspect or the tenth aspect is configured so that the cable guiding structure includes a groove configured to guide the cable.

[0025] With the hub assembly according to the eleventh aspect, the cable guiding structure can be provided with a simple configuration at low cost.

[0026] In accordance with a twelfth aspect of the present disclosure, the hub assembly according to the eleventh aspect is configured so that the cable protector is attached to the inside of the groove of the cable guiding structure.

[0027] With the hub assembly according to the twelfth aspect, the cable protector can be easily attached to the rotation restricting portion.

[0028] In accordance with a thirteenth aspect of the present disclosure, the hub assembly according to the eleventh aspect or the twelfth aspect is configured so that the cable protector includes a cable restricting portion that is wider than a width of the cable.

[0029] With the hub assembly according to the thirteenth aspect, with the cable protector in the second position, the cable protector can be reliably restrained.

[0030] According to a fourteenth aspect of the present disclosure, the hub assembly according to any one of the seventh to thirteenth aspects is configured so that the rotation restricting portion includes a recess, and with the cable protector in the second position, the cable protector is releasably held in the recess.

[0031] With the hub assembly according to the fourteenth aspect, the cable protector can be easily connected to the rotation restricting portion, and the cable protector can be easily placed in the second position relative to the rotation restricting portion.

[0032] In accordance with a fifteenth aspect of the present disclosure, the hub assembly according to the fourteenth aspect is configured so that the cable protector is elastically deformed as the cable protector moves in and out of the recess.

[0033] With the hub assembly according to the fifteenth aspect, the cable protector can be easily mounted on and removed from the rotation restricting portion. The cable protector can be held in the first position or the second position in a coverable manner.

[0034] According to a sixteenth aspect of the present disclosure, the hub assembly according to any one of the first to fifteenth aspects further includes an electric component non-rotatably provided relative to the hub axle, and wherein the cable is an electrical cable electrically connected to the electric component.

[0035] With the hub assembly according to the sixteenth aspect, electric power can be transmitted to and / or from the hub.

[0036] In accordance with a seventeenth aspect of the present disclosure, the hub assembly according to the sixteenth aspect is configured so that the electric component includes an electronic circuit board, and the cable is electrically connected to the electronic circuit board.

[0037] With the hub according to the seventeenth aspect, various information on the hub assembly can be obtained using the electronic circuit board.

[0038] According to an eighteenth aspect of the present disclosure, the hub assembly according to any one of the first to seventeenth aspects further includes a power generator provided to the hub main body and configured to generate electricity through rotation of the hub main body.

[0039] With the hub assembly according to the eighteenth aspect, electric power can be generated by the rotation of the hub.

[0040] According to the nineteenth aspect of the present disclosure, the hub assembly according to any one of the first to eighteenth aspects also includes a sprocket support structure, which is rotatably arranged around the rotation center axis to transmit the driving force to the hub body when rotating along the driving rotation direction around the rotation center axis.

[0041] With the hub assembly according to the nineteenth aspect, the sprocket supporting structure functions as a freewheel to allow the sprocket supporting structure to stop rotating during coasting.

[0042] According to the twentieth aspect of the present disclosure, a hub assembly for a human-powered vehicle is provided, which basically includes a hub axle, a hub body, a cable and a cable protector. The hub axle has a first axial end and a second axial end. The hub body is rotatably mounted on the hub axle to rotate about the rotation center axis of the hub assembly. The cable has a first portion arranged inside the hub assembly and a second portion arranged outside the hub assembly. The cable protector is a wire and is arranged on the hub axle. The second portion of the cable is at least partially confined to a position at an angle relative to the rotation center axis.

[0043] With the hub assembly according to the twentieth aspect, the cable can be constrained in a position to avoid interference with other components of the human-powered vehicle.

[0044] Furthermore, other objects, features, aspects and advantages of the disclosed hub will become apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses preferred embodiments of the hub. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Reference is now made to the accompanying drawings which form a part of this original disclosure:

[0046] Figure 1 is a side elevational view of a human-powered vehicle (i.e., a bicycle) equipped with the hub assembly (i.e., a bicycle hub assembly) according to the first embodiment;

[0047] Figure 2 is attached to Figure 1 A longitudinal elevational view of a hub assembly of a vehicle body of the illustrated human-powered vehicle;

[0048] Figure 3 yes Figure 1 A perspective view of the hub assembly shown in FIG;

[0049] Figure 4 yes Figure 2 and Figure 3 a perspective view of the hub assembly as shown, but with selective components removed to reveal the bearing spacers;

[0050] Figure 5 It is along Figure 3 As seen from section line 5-5 Figures 2 to 4 A longitudinal cross-sectional view of the hub assembly shown in ;

[0051] Figure 6 yes Figure 5 an enlarged cross-sectional view of a first portion of the hub assembly shown;

[0052] Figure 7 yes Figure 5 an enlarged cross-sectional view of a second portion of the hub assembly shown;

[0053] Figure 8 yes Figures 2 to 5 a perspective view of the hub assembly shown with selected portions of the hub broken away;

[0054] Figure 9 yes Figures 2 to 5 an end elevation view of the hub assembly shown with selected portions of the hub removed;

[0055] Figure 10 yes Figures 2 to 5 A partially exploded perspective view of the motorized assembly of the hub assembly shown;

[0056] Figure 11 yes Figures 2 to 5 a partial side elevational view of an end portion of the hub assembly shown with the cable at least partially restrained in an angled position relative to a central axis of rotation of the hub assembly with the cable protector in the second (restrained) position;

[0057] Figure 12 When the cable protector is in the second (restricted) position, Figure 11 a longitudinal section of the end portion shown;

[0058] Figure 13 yes Figure 11 and Figure 12 a partial side elevational view of the end portion shown, but with the cable protector in a first (unrestrained) position in which the cable is free to move parallel to the center of rotation of the hub assembly;

[0059] Figure 14 The cable protector is in the first (non-restrictive) position. Figures 11 to 13 a longitudinal section of the end portion shown;

[0060] Figure 15 yes Figures 11 to 14 a perspective view of the end portion as shown, but with the cable protector in a first (non-restrictive) position;

[0061] Figure 16The cable protector is in the first (non-restrictive) position. Figures 11 to 15 a partial end elevation view of the end portion shown;

[0062] Figure 17 yes Figures 11 to 16 a perspective view of the end portion as shown, but with the cable protector in the second (restrained) position;

[0063] Figure 18 When the cable protector is in the second (restricted) position, Figures 11 to 17 a partial end elevation view of the end portion shown;

[0064] Figure 19 yes Figures 11 to 18 a partial top view of the end portion shown with the cable at least partially restrained in an angled position relative to the central axis of rotation of the hub assembly with the cable protector in the second (restrained) position;

[0065] Figure 20 The cable protector is in the first (non-restrictive) position. Figures 2 to 5 an enlarged end elevation view of the end cap of the hub assembly shown;

[0066] Figure 21 The cable protector is in the first (non-restrictive) position. Figure 20 an enlarged top view of the end cap shown;

[0067] Figure 22 The cable protector is in the first (non-restrictive) position. Figure 20 and Figure 21 A longitudinal cross-sectional view of the end cap shown;

[0068] Figure 23 yes Figures 20 to 22 an enlarged end elevation view of the end cap shown, but with the cable protector in the second (restrained) position;

[0069] Figure 24 When the cable protector is in the second (restricted) position, Figures 20 to 23 an enlarged top view of the end cap shown;

[0070] Figure 25 When the cable protector is in the second (restricted) position, Figures 20 to 24 an enlarged perspective view of the end cap shown; and

[0071] Figure 26 yes Figures 20 to 25 An enlarged perspective view of the end cap is shown with the cable protector removed from the end cap. DETAILED DESCRIPTION

[0072] Selected embodiments will now be explained with reference to the accompanying drawings. It will be apparent to those skilled in the art of human-powered vehicles (e.g., bicycles) from this disclosure that the following description of the embodiments is provided for illustration only and is not intended to limit the invention as defined by the appended claims and their equivalents.

[0073] First reference Figure 1 , a hub assembly 10 is provided for a human-powered vehicle V. In other words, the human-powered vehicle V (i.e., a bicycle) is shown as being equipped with a hub assembly 10 according to the illustrated embodiment. Here, in the illustrated embodiment, the hub assembly 10 is a bicycle hub. More specifically, the hub assembly 10 is a bicycle rear hub. In addition, here, in the illustrated embodiment, the hub assembly 10 is a hub generator for providing power to one or more components of the human-powered vehicle V. However, the hub assembly 10 is not limited to a hub generator. In particular, certain aspects of the hub assembly 10 can be provided to a hub assembly that does not generate power. Furthermore, although the hub assembly 10 is shown as a rear hub, certain aspects of the hub assembly 10 can be provided to a front hub. Therefore, the hub assembly 10 is not limited to a rear hub.

[0074] Here, the human-powered vehicle V is an electric-assisted bicycle (E-bike). Alternatively, the human-powered vehicle V may be a road bicycle, a city bicycle, a cargo bicycle, a recumbent bicycle, or other types of non-road bicycles such as off-road bicycles. Figure 1 As shown, the human-powered vehicle V includes a vehicle body VB supported by a rear wheel RW and a front wheel FW. The vehicle body VB essentially consists of a front frame body FB and a rear frame body RB (swingarm). The vehicle body VB is also equipped with a handlebar H and a front fork FF for steering the front wheel FW. The rear frame body RB is swingably mounted to the rear portion of the front frame body FB, allowing it to pivot relative to the front frame body FB. The rear wheel RW is mounted to the rear end of the rear frame body RB. A rear shock absorber RS ​​is operably disposed between the front and rear frame bodies FB. The rear shock absorber RS ​​is positioned between the front and rear frame bodies FB to control the movement of the rear frame body RB relative to the front frame body FB. Specifically, the rear shock absorber RS ​​absorbs vibrations transmitted from the rear wheel RW. The rear wheel RW is rotatably mounted to the rear frame body RB. The front wheel FW is mounted to the front frame body FB via the front fork FF. Specifically, the front wheel FW is mounted to the lower end of the front fork FF. A height-adjustable seatpost ASP is conventionally mounted to the seat tube of the front frame body FB and supports a bicycle seat or saddle S in any suitable manner. A front fork FF is pivotally mounted to the head tube of the front frame body FB. A handlebar H is mounted to the upper end of 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 absorber RS ​​and the front fork FF are electrically adjustable suspensions. For example, the stiffness and / or travel length of the rear shock absorber RS ​​and the front fork FF can be adjusted.

[0075] The human-powered vehicle V also includes a power transmission system DT and an electric drive unit DU operably connected to the power transmission system DT. Here, for example, the power transmission system DT is of a chain drive type and includes 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 to the front frame body FB via the electric drive unit DU. The crank arms CA2 are provided at both ends of the crankshaft CA1. The pedals PD are rotatably connected to the distal end of each crank arm CA2. The power transmission system DT can be selected from any type and can be of a belt drive type or a shaft drive type.

[0076] The electric drive unit DU includes an electric motor that provides driving assistance to the front sprocket FS. The electric drive unit DU can be driven in a conventional manner to assist in the propulsion of the human-powered vehicle V. For example, the electric drive unit DU is driven based on the human-powered driving force applied to the pedals PD. The electric drive unit DU is powered by electricity provided by a main battery pack BP mounted on the down tube of the human-powered vehicle V. The main battery pack BP can also provide 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 require electricity.

[0077] The human-powered vehicle V also includes a cycle computer SC. Here, the cycle computer SC is mounted to the front frame body FB. Alternatively, the cycle computer SC may be mounted on the handlebars H. The cycle computer SC informs the rider of various driving and / or operating conditions of the human-powered vehicle V. The cycle computer SC may also include various control programs for automatically controlling one or more vehicle components. For example, the cycle computer SC may be equipped with an automatic shifting program for changing the gear position of the rear derailleur RD according to one or more driving and / or operating conditions of the human-powered vehicle V.

[0078] Here, the human-powered vehicle V also includes a rear derailleur RD attached to the rear frame body 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 transmission device). Here, the rear derailleur RD is arranged on the rear side of the rear frame body RB near the hub assembly 10. The rear derailleur RD can be operated when the rider of the human-powered vehicle V manually operates the shift operating device or shifter SL. The rear derailleur RD can also be automatically operated according to the driving conditions and / or operating conditions of the human-powered vehicle V. The human-powered vehicle V can also include multiple electronic components. Some or all of the electronic components can be powered by the electricity generated by the hub assembly 10 during the power generation state discussed herein.

[0079] Now we will refer to Figures 2 to 8The structure of the hub assembly 10 is described. The hub assembly 10 includes 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 the present 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 so as to rotate around the rotation center axis A1 of the hub assembly 10. The hub axle 12 has a center axis that is coaxial with the rotation center axis A1. The hub body 14 is rotatably provided around the rotation center axis A1. In other words, the hub body 14 is rotatably mounted around the hub axle 12.

[0080] like Figures 5 to 7 As shown, the hub axle 12 is a rigid member made of a suitable material such as a metal material. The hub axle 12 has a first axial end 12a and a second axial end 12b. Here, the hub axle 12 is a tubular member. Therefore, the hub axle 12 has an axial hole 12c extending between the first axial end 12a and the second axial end 12b. The hub axle 12 can be a one-piece member or made of several pieces. Here, the hub axle 12 is provided with a first end member or end cap 16 and a second end member or end cap 18. The first end cap 16 is mounted to the first axial end 12a ( Figures 2 to 8 ), and the second end cover 18 is mounted to the second axial end 12b ( Figures 2 to 8 For example, the first end cap 16 is threadedly connected to the first axial end 12a of the hub axle 12, and the second end cap 18 is fixed to the second axial end 12b of the hub axle 12 by a fixing bolt 20 threaded into the axial hole 12c of the hub axle 12. Figure 2 As shown, the first end cap 16 and the fixing bolt 20 are received in the mounting opening of the rear frame body RB.

[0081] The hub assembly 10 also includes a rotation restricting portion 21, which is configured to be positioned between the hub axle 12 and the frame (rear frame body RB) of the human-powered vehicle V, thereby restricting rotation of the hub axle 12 relative to the frame (rear frame body RB). Here, the second end cap 18 also includes the rotation restricting portion 21, which is received in one of the mounting openings of the rear frame body RB. The rotation restricting portion 21 engages with the rear frame body RB, thereby restricting rotation of the hub axle 12 relative to the rear frame body RB. The second end cap 18 is removably attached to the hub axle 12 using a fixing bolt 20. Thus, the rotation restricting portion 21 is removably attached to the hub axle 12.

[0082] Here, as Figure 2 and Figure 5As shown, the hub assembly 10 also includes a wheel retaining mechanism 22 for securing the hub axle 12 of the hub assembly 10 to the rear frame body RB. The wheel retaining mechanism 22 basically includes an axle or skewer 22a, a cam body 22b, a cam rod 22c, and an adjustment nut 22d. The cam rod 22c is attached to one end of the skewer 22a via the cam body 22b, while the adjustment nut 22d is threadedly connected to the other end of the skewer 22a. The cam rod 22c is attached to the cam body 22b. The cam body 22b is coupled between the skewer 22a and the cam rod 22c to move the skewer 22a relative to the cam body 22b. Therefore, the cam rod 22c is operated to move the skewer 22a in the axial direction of the rotation center axis A1 relative to the cam body 22b to change the distance between the cam body 22b and the adjustment nut 22d. Preferably, a compression spring is provided at each end of the skewer 22a. The wheel retaining mechanism 22 is sometimes referred to as a quick-release skewer. The wheel retaining mechanism 22 is typically used with a frame having a pair of U-shaped axle attachments, each having an open-ended slot for receiving a portion of the skewer 22a. Alternatively, the hub axle 12 may be non-rotatably attached to the rear frame body RB by other attachment structures as needed and / or desired.

[0083] like Figure 1 、 Figure 3 and Figure 4 As shown, the hub body 14 is rotatably mounted around the hub axle 12 to rotate in the driving rotation direction D1. The driving rotation direction D1 corresponds to the forward driving 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 outer 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 rim ( Figure 1 ) attached to the plurality of spokes ( Figure 1 ). In this way, the hub main body 14 and the rear wheel RW are coupled to rotate together.

[0084] like Figures 5 to 7As shown, the hub assembly 10 further includes a first hub body bearing 24. The first hub body bearing 24 rotatably supports the hub body 14. Preferably, the hub assembly 10 further includes a second hub body bearing 26 rotatably supports one end of the hub body 14. The first hub body bearing 24 rotatably supports the other end of the hub body 14 relative to the rotational center axis A1. The first hub body bearing 24 includes a first inner ring 24a, a first outer ring 24b, and a plurality of first roller elements 24c. The first roller elements 24c are disposed between the first inner ring 24a and the first outer ring 24b. The second hub body bearing 26 includes a second inner ring 26a, a second outer ring 26b, and a plurality of second roller elements 26c. The second roller elements 26c are disposed between the second inner ring 26a and the second outer ring 26b. The first hub body bearing 24 and the second hub body bearing 26 are radial ball bearings. Radial ball bearings withstand forces perpendicular to the axis. Alternatively, radial roller bearings may be used instead of radial ball bearings. Radial roller bearings include cylindrical roller bearings and needle roller bearings.

[0085] Here, the hub assembly 10 further includes a bearing spacer 28. The bearing spacer 28 is provided on the hub axle 12 and supports the hub body 14 via the second hub body bearing 26. The bearing spacer 28 supports the second hub body bearing 26. The bearing spacer 28 has an inner peripheral end 28a provided on the hub axle 12 and an outer peripheral end 28b radially spaced apart from the inner peripheral end 28a in the radial direction relative to the rotation center axis A1. The second hub body bearing 26 is provided at the outer peripheral end 28b of the bearing spacer 28 and rotatably supports the hub body 14. The bearing spacer 28 is non-rotatable relative to the hub axle 12. In particular, as Figure 4 As shown, the inner peripheral end 28a defines a non-circular opening 28a1 that cooperates with the non-circular portion of the hub axle 12 to non-rotatably couple the bearing spacer 28 relative to the hub axle 12. The axial position of the bearing spacer 28 relative to the hub axle 12 can be determined by being sandwiched between a step provided on the hub axle 12 and a nut threadedly connected to the hub axle 12. Here, the bearing spacer 28 includes an axial opening 28c.

[0086] Here, the hub assembly 10 further includes a sprocket support structure 30. In the illustrated embodiment, the sprocket support structure 30 supports the rear sprocket CS, as shown in FIG. Figure 2As shown. The sprocket support structure 30 is rotatably arranged about the rotational center axis A1 to transmit driving force to the hub body 14 when rotating about the rotational center axis A1 in the driving rotational direction. As described below, the sprocket support structure 30 does not transmit driving force to the hub body 14 when rotating about the rotational center axis A1 in the non-driving rotational direction D2. The non-driving rotational direction D2 is opposite to the driving rotational direction D1 relative to the rotational center axis A1. The central rotational axis of the sprocket support structure 30 is arranged concentrically with the rotational center axis A1 of the hub assembly 10.

[0087] Although the sprocket support structure 30 is configured to non-rotatably support the rear sprockets CS, the sprocket support structure 30 is not limited to the illustrated embodiment. Alternatively, one or more of the rear sprockets CS may be integrally formed with the sprocket support structure 30. In any case, the sprocket support structure 30 and the rear sprockets CS are coupled together to rotate together in the driving rotation direction D1 and the non-driving rotation direction D2.

[0088] The hub assembly 10 also includes a first sprocket support bearing 32 and a second sprocket support bearing 34. The first sprocket support bearing 32 rotatably supports the first end 30a of the sprocket support structure 30. The second sprocket support bearing 34 rotatably supports the second end 30b of the sprocket support structure 30. The first and second sprocket support bearings 32, 34 have outer diameters smaller than the outer peripheral end 28b of the bearing spacer 28. The inner diameter of the first sprocket support bearing 32 is larger than the inner diameter of the second sprocket support bearing 34. Therefore, the first and second sprocket support bearings 32, 34 can be mounted on the hub axle 12 from the second axial end 12b of the hub axle 12. The first sprocket support bearing 32 includes a first inner race 32a, a first outer race 32b, and a plurality of first roller elements 32c. The first roller elements 32c are disposed between the first inner race 32a and the first outer race 32b. The second sprocket support bearing 34 includes a second inner race 34a, a second outer race 34b, and a plurality of second roller elements 34c. The second roller element 34c is disposed between the second inner race 34a and the second outer race 34b. Here, the first sprocket support bearing 32 and the second sprocket support bearing 34 are radial ball bearings. Radial ball bearings withstand forces perpendicular to the axis. Alternatively, radial roller bearings can be used instead of radial ball bearings. Examples of radial roller bearings include cylindrical roller bearings and needle roller bearings. A tubular spacer element 35 is disposed between the first sprocket support bearing 32 and the second sprocket support bearing 34.

[0089] like Figures 5 to 7As shown, the hub assembly 10 also includes a motorized assembly 36. The motorized assembly 36 includes a motorized component 38. Therefore, the hub assembly 10 also includes the motorized component 38. The motorized component 38 is non-rotatably disposed relative to the hub axle 12, and the cable 40 is an electrical cable electrically connected to the motorized component. Although the motorized component 38 is part of the hub assembly 10, the motorized component 38 can be used with other components of the human-powered vehicle. The motorized component 38 has an opening 38a for receiving the hub axle 12 through the opening 38a. Therefore, the motorized component 38 is supported on the hub axle 12. As described below, the motorized component 38 is non-rotatably disposed on the hub axle 12.

[0090] The hub assembly 10 also includes a cable 40. Figure 5 As shown, the cable 40 enters the hub assembly 10 through the opening 18a of the end cap 18. Figure 9 As shown, cable 40 is an electrical cable electrically connected to powered component 38. Cable 40 has a first end 40a and a second end 40b. Cable 40 has a longitudinal axis C1 extending between first end 40a and second end 40b. First end 40a is separated from second end 40b by a middle section 40c of cable 40. First end 40a is electrically connected to powered component 38. Second end 40b is electrically connected to another powered component of human-powered vehicle V, such as a rear derailleur RD, a battery pack BP, or an electrical connector. Here, second end 40b is an electrical connector.

[0091] Furthermore, the cable 40 has a first portion 40d disposed inside the hub assembly 10 and a second portion 40e disposed outside the hub assembly 10. Essentially, the first portion 40d of the cable 40 extends at least partially along the rotational center axis A1. The cable 40 extends outside the hub assembly 10 through the opening 18a of the end cap 18. Therefore, the second portion 40e of the cable 40 corresponds to the portion of the cable 40 that exits the opening 18a of the end cap 18, while the first portion 40d corresponds to the portion of the cable 40 that does not emerge from the hub assembly 10. Here, the opening 18a of the end cap 18 has a center axis B1 that is parallel to the rotational center axis A1 of the hub assembly 10. The opening 18a may have a center axis B1 that is along the rotational center axis A1. In the illustrated embodiment, the rotation restricting portion 21 includes a cable guiding structure 21a configured to guide the second portion 40e of the cable 40 in a direction angled relative to the rotational center axis A1. Furthermore, in the illustrated embodiment, the cable guide structure 21a is also configured to guide the cable 40 in the radial direction of the hub axle 12. Preferably, the cable guide structure 21a includes a groove 21b configured to guide the cable 40.

[0092] Preferably, as in the embodiment shown, Figure 5As shown, the cable 40 is disposed in an axially extending groove or recess 12d of the hub axle 12. Thus, the groove 12d forms a cable receiving channel for the cable 40. The groove 12d extends, for example, from the second axial end 12b to the interior of the housing 42 of the electric component 38. Thus, the cable 40 can be located in the groove 12d between the electric component 38 and the second axial end 12b of the hub axle 12. Here, the groove 12d extends from the second axial end 12b past the power generator 60.

[0093] The hub assembly 10 also includes a cable protector 41. Basically, the cable protector 41 is provided on the hub axle 12. More specifically, the cable protector 41 is provided on the end cap 18. More specifically, the cable protector 41 is provided on the rotation restricting portion 21 of the end cap 18. The cable protector 41 is arranged movably between a first position and a second position relative to the hub axle 12. When the cable protector 41 is in the first position, the second portion 40e of the cable 40 extends along the rotation center axis A1. When the cable protector 41 is in the second position, the second portion 40e of the cable 40 is at least partially restricted to a position at an angle relative to the rotation center axis A1. In the illustrated embodiment, the cable protector 41 is used in conjunction with the hub axle 12 having a quick-release skewer (wheel retaining mechanism 22). Here, the rear frame body RB has a pair of U-shaped axle attachments, each of which has an open-ended slot for receiving a portion of the skewer 22a. In other words, when the hub assembly 10 is used with a quick-release skewer, when the wheel is attached to the rear frame body RB, there is nothing else in the axial direction to restrict outward movement of the cable 40 except the cable protector 41. Therefore, in this type of quick-release arrangement, the cable protector 41 is particularly useful for holding the cable 40 in a bent position when the cable protector 41 is in the second position.

[0094] In the illustrated embodiment, the cable protector 41 is pivotally mounted relative to the hub axle 12 between a first position and a second position. Therefore, the cable protector 41 has a pivot axis P1. Pivot axis P1 extends in a twisted or intersecting relationship with respect to the rotational axis A1 of the hub body 14. Therefore, pivot axis P1 is not parallel to the rotational axis A1 of the hub body 14. Here, pivot axis P1 is arranged perpendicularly to the rotational axis A1.

[0095] Here, the cable protector 41 is a wire. The wire of the cable protector 41 has a first end 41a and a second end 41b. The first end 41a and the second end 41b are coupled to the rotation restricting portion 21 of the end cap 18. More specifically, the cable protector 41 is attached to the groove 21b of the cable guide structure 21a. Preferably, the rotation restricting portion 21 also includes a pair of recessed portions 21c and a pair of recessed portions 21d that cooperate with the cable protector 41 as described below.

[0096] Furthermore, the cable protector 41 includes a cable restraining portion 41c that is wider than the width of the cable 40. The cable restraining portion 41c is configured to contact the second portion 40e of the cable 40 when the cable protector 41 is in the second position. The cable restraining portion 41c is also wider than the lateral width of the recess 21b of the cable guide structure 21a. The cable protector 41 has a first leg 41d and a second leg 41e. When each of the legs 41d and 41e engages with one of the recesses 21c, the cable protector 41 is retained in the second position. The first leg 41d and the second leg 41e are configured to engage the cable guide structure 21a so that the cable protector 41 can be retained in the first position or the second position by the elastic force of the first leg 41d and the second leg 41e. In other words, the cable protector 41 can be retained in the first position or the second position in an overridable manner. Specifically, to install and / or uninstall the cable protector 41 in the recess 21 c of the rotation restricting portion 21 , the cable protector 41 is elastically deformed as the cable protector 41 moves in and out of the recess 21 c of the rotation restricting portion 21 .

[0097] Here, the rotation restricting portion 21 includes a recess (e.g., recess 21c) and a cable protector 41. When the cable protector 41 is in the second position, the cable protector 41 is releasably retained in the recess (e.g., recess 21c). In other words, the rotation restricting portion 21 is provided with at least one recess to releasably retain the cable protector 41 in the second position. On the other hand, the recess 21d pivotally couples the cable protector 41 to the rotation restricting portion 21. Specifically, the first end 41a of the cable protector 41 is disposed in one of the recesses 21d, while the second end 41b is disposed in the other recess 21d. The first end 41a and the second end 41b define a pivot axis P1 of the cable protector 41. Since the recess 21d is an elongated slot in the illustrated embodiment, the pivot axis P1 does not need to be fixed relative to the rotation restricting portion 21. Instead, the pivot axis P1 can move along the recess 21d. However, when each of the legs 41d and 41e engages one of the recesses 21c, the cable protector 41 is restricted from moving along the recess 21d. Furthermore, a recess or hole into which the first end 41a and the second end 41b are inserted may be provided in the recess 21d. This configuration restricts the movement of the cable protector 41 along the recess 21d. The cable protector 41 is attached to the recess 21d without being deformed. However, the cable protector 41 may be attached to the recess 21d in a deformed state.

[0098] Here, as Figure 23As shown, the recesses 21c are located on opposite sides of the groove 21b of the cable guiding structure 21a. Each recess 21c is located on one of the surfaces of the groove 21b facing each other to clamp the cable 40. Similarly, the recesses 21d are also located on opposite sides of the groove 21b of the cable guiding structure 21a. Each of the recesses 21d is located on one of the surfaces of the groove 21b facing each other to clamp the cable 40. In addition, on each side of the groove 21b, the corresponding recesses 21c and recesses 21d are aligned. With this construction, in a case where the reference plane RP completely contains the rotation center axis A1 and is perpendicular to the pivot axis P1 of the cable protector 41, the first end 41a is set on the first side of the reference plane RP and the second end 41b is set on the second side of the reference plane RP. In other words, when the cable protector 41 is in a position as shown in FIG. Figure 15 、 Figure 16 、 Figure 21 and Figure 22 In the first (non-restricted) position shown, the first end 41a is disposed in the recess 21d on the first side of the reference plane RP, while the second end 41b is disposed in the recess 21d on the second side of the reference plane RP. In this manner, in the first (non-restricted) position, when the first end 41a and the second end 41b are located in the recess 21d, the cable protector 41 is free to move relative to the rotation restrictor 21. When the cable protector 41 is in the position shown, the cable protector 41 is free to move relative to the rotation restrictor 21. Figure 17 、 Figure 18 and Figures 23 to 25 In the second (limiting) position shown, the first end 41a and the second end 41b are disposed in the recess 21d, and the legs 41d and 41e are disposed in the recess 21c. Thus, in the second (limiting) position, the movement of the cable protector 41 relative to the rotation limiting portion 21 is limited. In the illustrated embodiment, the recess 21c is a mirror image of each other relative to the reference plane RP. Similarly, the recess 21d is a mirror image of each other relative to the reference plane RP. The recess 21c and the recess 21d have an opening that is directly connected to the groove 21b of the cable guiding structure 21a. The recess 21c and the recess 21d each have a width extending in a direction parallel to the rotation center axis A1 of the hub body 14, wherein the width is equal to or slightly larger than the diameter of the wire forming the cable protector 41.

[0099] Here, the electric component 38 includes a housing 42. The housing 42 is configured to define an opening 38a of the electric component 38 for receiving the hub axle 12. The housing 42 has a first surface 42a, a second surface 42b, and an opening 38a. The opening 38a extends from the first surface 42a to the second surface 42b. The second surface 42b is located on the opposite side of the electric component 38 relative to the first surface 42a. In the illustrated embodiment, the first surface 42a faces the first axial end 12a of the hub axle 12, while the second surface 42b faces the second axial end 12b of the hub axle 12. Here, the hub axle 12 extends through the opening 38a of the electric component 38.

[0100] Here, the electric component 38 further includes a spacer 43, which is provided between the hub axle 12 and the electric component 38 in the radial direction relative to the rotation center axis A1. In other words, the hub assembly 10 further includes a spacer 43 provided between the hub axle 12 and the electric component 38 in the radial direction relative to the rotation center axis A1. The spacer 43 is a tubular support member having a cylindrical guide portion 43a and an annular abutment portion 43b. The guide portion 43a is contained in the spacer 43.

[0101] In addition, the electric component 38 includes an electronic circuit board 44. The electric component 38 is disposed in the hub body 14. Therefore, the electronic circuit board 44 is disposed in the housing 42. The cable 40 is electrically connected to the electronic circuit board 44. Specifically, the first end 40a of the cable 40 is electrically connected to the electronic circuit board 44.

[0102] like Figure 5 As shown, the cable 40 enters the hub assembly 10 through the opening 18a of the end cap 18. The cable 40 then extends axially along the hub axle 12 and through the bearing spacer 28. The cable 40 passes through the cover 46 and into the housing 42 of the motorized component 38.

[0103] In the illustrated embodiment, the housing 42 includes a housing body 45 and a cover 46. The cover 46 is attached to the housing body 45 for enclosing the electronic circuit board 44 in the housing 42. Here, the cover 46 is bonded to the housing body 45 by an adhesive or welding. However, the cover 46 can be attached to the housing body 45 by threaded fasteners, rivets, etc. Preferably, the housing body 45 and the cover 46 are rigid components made of suitable materials. For example, the housing body 45 and the cover 46 are made of a resin material. For example, the housing body 45 and the cover 46 can be injection molded components, respectively. In the illustrated embodiment, the bearing spacer 28 is fixedly attached to the housing 42 by a plurality of threaded fasteners 47. The threaded fasteners 47 are screwed into the cover 46 of the housing 42.

[0104] The housing 42 is non-rotatable relative to the hub axle 12. In the illustrated embodiment, an electronic circuit board 44 is disposed in the housing 42, and the housing 42 is non-rotatable relative to the hub axle 12. The housing 42 is configured to accommodate the electronic circuit board 44, as well as other items and components. In particular, the housing 42 has an outer peripheral surface defining an interior space 42c, in which the electronic circuit board 44 is disposed. The first surface 42a of the housing 42 includes a plurality of keying protrusions 42d. As described below, the keying protrusions 42d can be configured to engage with a non-rotating member provided to the hub axle 12 for non-rotatably coupling the housing 42 to the hub axle 12.

[0105] like Figures 5 to 8 and Figure 10As shown, the cover 46 is connected to the housing body 45 to protect the electronic circuit board 44 and other parts contained in the shell 42. The cover 46 covers the internal space 42c of the housing body 45. Therefore, at least the shell 42, the electronic circuit board 44 and the capacitor 54 can be considered to constitute an electric unit provided in the hub body 14. The internal space 42c has a ring shape, that is, the hub axle 12 passes through the central area of ​​the shell 42. In this way, the electronic circuit board 44 is non-rotatable relative to the hub axle 12. The electronic circuit board 44 is arranged perpendicular to the rotation center axis A1. The electronic circuit board 44 is part of the electric component 38.

[0106] like Figure 9 As shown, in the illustrated embodiment, the electronic circuit board 44 has an arcuate shape. Here, the electronic circuit board 44 has a first circumferential end portion 44a and a second circumferential end portion 44b. The electronic circuit board 44 also has at least one arcuate edge that extends at least partially from the first circumferential end portion 44a to the second circumferential end portion 44b. Here, the at least one arcuate edge includes at least one of an inner arcuate edge 44c and an outer arcuate edge 44d relative to the rotation center axis A1. The electronic circuit board 44 also includes an electrical controller 48 disposed on the electronic circuit board 44. The electrical controller 48 is configured to receive detection signals from the rotation detection sensor 52. The electrical controller 48 includes at least one processor that executes a predetermined control program. The at least one processor can be, for example, a central processing unit (CPU) or a microprocessor unit (MPU). The term "electrical controller" as used herein refers to hardware that executes a software program and does not include a person. Preferably, the electronic circuit board 44 also includes a data storage device (memory) disposed on the electronic circuit board 44. The data storage device (memory) stores various control programs and information used for various control processes, including power generation control, power storage control, hub rotation detection control, and the like. The data storage device includes any computer storage device or any non-transitory computer-readable medium, with the sole exception of temporarily propagating signals. 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), electrically erasable programmable read-only memory (EEPROM), and flash memory. Volatile memory includes, for example, random access memory (RAM).

[0107] like Figure 8As shown, the hub assembly 10 also includes a detected portion 50 connected to the sprocket support structure 30. In particular, the detected portion 50 is fixed to the sprocket support structure 30 so that the detected portion 50 and the sprocket support structure 30 rotate together around the hub shaft 12. The hub assembly 10 also includes a rotation detection sensor 52, which is configured to detect the detected portion 50 to detect the rotation of the sprocket support structure 30 around the rotation center axis A1. The rotation detection sensor 52 is disposed in the hub body 14. In other words, the rotation detection sensor 52 is configured to detect the detected portion 50 provided to the sprocket support structure 30. In particular, the rotation detection sensor 52 is disposed in the internal space 42c of the housing 42. In this way, the rotation detection sensor 52 is non-rotatably mounted on the hub shaft 12. Therefore, the rotation detection sensor 52 does not rotate with the hub body 14. The rotation detection sensor 52 is also part of the electric component 38. The rotation detection sensor 52 is electrically connected to the electronic circuit board 44. As shown Figure 8 As shown, the rotation detecting sensor 52 is provided in the hub main body 14 at a position spaced radially outward from the hub axle 12 .

[0108] like Figures 8 to 10 As shown, the rotation detection sensor 52 is arranged at a position axially aligned with the axial opening 28c of the bearing spacer 28. In this way, the bearing spacer 28 does not interfere with the rotation detection sensor 52 detecting the detected portion 50 provided on the sprocket support structure 30. Figures 8 to 10 As shown, the rotation detection sensor 52 is provided at a position separated from the electronic circuit board 44. Specifically, the rotation detection sensor 52 is arranged at a position separated from the electronic circuit board 44 in a direction parallel to the rotation center axis A1. The rotation detection sensor 52 is electrically connected to the electronic circuit board 44.

[0109] In the illustrated embodiment, the rotation detection sensor 52 comprises a magnetic sensor, and the detected portion 50 comprises a magnet. Thus, the magnetic sensor detects the movement of the magnet, which rotates along with the sprocket support structure 30. In other words, with this arrangement, the rotation detection sensor 52 is configured to detect the detected portion 50 and thus detect rotation of the sprocket support structure 30 about the rotation center axis A1. The electrical controller 48 is configured to receive a detection signal from the rotation detection sensor 52.

[0110] Here, the magnet of the detected portion 50 is an annular member having alternating S-pole segments and N-pole segments. In this way, the rotation detection sensor 52 can detect the amount of rotation and the direction of rotation of the sprocket support structure 30. However, the detected portion 50 is not limited to the annular member shown in the figure. For example, the detected portion 50 can be formed by a single non-annular magnet, or by 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 set to the back yoke. In this way, the circumferentially spaced magnets can be easily installed in the hub assembly 10. The term "sensor" used here refers to a hardware device or instrument designed to detect the presence or absence of a specific event, object, substance or a change in its environment, and to send a response signal. The term "sensor" used here does not include people.

[0111] The hub assembly 10 also includes at least one capacitor 54 electrically connected to the electronic circuit board 44. The at least one capacitor is electrically connected to the at least one conductor. Here, the electric component 38 includes two capacitors 54. The capacitors 54 are an example of power storage for the electric component 38. In other words, the capacitors 54 are also part of the electric component 38. The capacitors 54 are preferably disposed within the housing 42 of the hub assembly 10. Thus, the capacitors 54 are non-rotatably supported on the hub axle 12 by the housing 42.

[0112] As described below, additional conductors are electrically connected to the rotation detection sensor 52 and the electronic circuit board 44. Furthermore, here, the electric component 38 includes a first conductor 56A and a pair of second conductors 56B. The rotation detection sensor 52 is electrically connected to the electronic circuit board 44 via the first conductor 56A. Here, the first conductor 56A is a flexible ribbon conductor. The first conductor 56A may be a conductive lead. Meanwhile, the electronic circuit board 44 is electrically connected to the capacitor 54 via the second conductor 56B. The second conductor 56B extends from one of the first circumferential end portion 44a and the second circumferential end portion 44b. Here, one of the second conductors 56B extends from the first circumferential end portion 44a to electrically connect one of the capacitors 54 to the electronic circuit board 44. The other of the second conductors 56B extends from the second circumferential end portion 44b to electrically connect the other of the capacitors 54 to the electronic circuit board 44. Here, the second conductor 56B is a flexible ribbon conductor. The second conductors 56B may be a conductive lead. The capacitor 54 is disposed within the interior space of the housing 42 at a location outside the electronic circuit board 44. The capacitor 54 may be secured within the housing 42 using adhesive or the like. The cover 46 is connected to the housing body 45 to protect the capacitor 54 provided inside the case 42 .

[0113] The circuit board 44 is electrically connected to the rotation detection sensor 52 and the capacitor 54. In this manner, the capacitor 54 supplies power to the electronic circuit board 44 and other electrically powered components electrically connected to the electronic circuit board 44. For example, the capacitor 54 supplies power to the rotation detection sensor 52. Furthermore, the electrical controller 48 of the electronic circuit board 44 is configured to control the input and output of power from the capacitor 54.

[0114] like Figures 5 to 7 As shown, the hub assembly 10 further includes a one-way clutch 58 formed between the hub body 14 and the sprocket support structure 30. The one-way clutch 58 includes a plurality of pawls 58A disposed between the hub body 14 and the sprocket support structure 30. The one-way clutch 58 also includes a biasing element 58B that couples the pawls 58A to the sprocket support structure 30. The one-way clutch 58 also includes a plurality of ratchet teeth 58C. The ratchet teeth 58C are disposed on a fixing ring 58D fixed to the hub body 14. The ratchet teeth 58C are disposed on the inner circumferential surface of the fixing ring 58D. The fixing ring 58D is threadedly connected to the hub body 14. The fixing ring 58D is made of a hard material such as metal. The fixing ring 58D abuts against the second outer ring 26b of the second hub body bearing 26 in the axial direction relative to the rotational center axis A1. The second outer ring 26b of the second hub body bearing 26 abuts against a step formed in the hub body 14 on opposite sides in the axial direction. The second outer ring 26b of the second hub body bearing 26 is restrained in axial movement by the fixing ring 58D and a step formed on the hub body 14. A biasing element 58B biases the pawl 58A toward engagement with the ratchet teeth 58C of the fixing ring 58D. The biasing element 58B presses the pawl 58A against the sprocket support structure 30, causing the pawl 58A to pivot toward engagement with the ratchet teeth 58C of the fixing ring 58D. A sealing member 58E is provided on the fixing ring 58D. The sealing member 58E is formed in an annular shape. The tongue portion of the sealing member 58E contacts the outer peripheral surface of the sprocket support structure 30.

[0115] In this manner, the sprocket support structure 30 is coupled to the hub body 14 for joint rotation about the rotational axis A1 in the driving rotational direction D1. Furthermore, when the sprocket support structure 30 rotates in the non-driving rotational direction D2, the ratchet teeth 58C of the sprocket support structure 30 push the pawl 58A and cause the pawl 58A to pivot to a retracted position against the sprocket support structure 30. Thus, the sprocket support structure 30 is configured to rotate relative to the hub body 14 in the non-driving rotational direction D2 about the rotational axis A1. In this manner, the sprocket support structure 30 and the one-way clutch 58 form a freewheel commonly used in bicycles. Because the basic operation of a flywheel is relatively conventional, the flywheel will not be discussed or illustrated in further detail.

[0116] like Figures 5 to 7As shown, the hub assembly 10 includes a power generator 60. Here, the power generator 60 is considered part of the electric assembly 36. In other words, the electric assembly 36 includes the power generator 60. The cable 40 is electrically connected to the power generator 60 via the electronic circuit board 44. In this way, the cable 40 can provide the power generated by the hub assembly 10 to the rear derailleur RD, the battery pack BP, or other electric components. The cable 40 can also be used to transmit signals from the electronic controller 48 of the electronic circuit board 44 to the rear derailleur RD or another electric component using power line communication (PLC).

[0117] The power generator 60 is provided to the hub body 14 and is configured to generate electricity through the rotation of the hub body 14. More specifically, the power generator 60 is provided to the hub body 14 between the hub axle 12 and the center portion of the hub body 14. In the illustrated embodiment, the hub body 14 is rotatably mounted on the hub axle 12 so as to rotate about the rotational center axis A1 of the power generator 60. The power generator 60 is configured to generate electricity through the rotation of the hub body 14 relative to the hub axle 12. The electrical controller 48 of the electronic circuit board 44 is electrically connected to the power generator 60 to control the power output of the power generator 60. Therefore, the power generated by the power generator 60 can be stored and / or directly supplied to other components, such as the rotation detection sensor 52, the rear derailleur RD, etc.

[0118] Although the power generator 60 is shown and described as being part of the hub assembly 10, the power generator 60 can be applied to different parts of the human-powered vehicle V. Typically, the power generator 60 includes a shaft, a stator, and a rotor. Therefore, the following description of the power generator 60 is not limited to use as part of the hub assembly. Rather, the following description of the power generator 60 can be applied to other parts of the human-powered vehicle V to generate electricity.

[0119] In the illustrated embodiment, the power generator 60 further includes a stator 62 and a rotor 64. The stator 62 is non-rotatable relative to the hub axle 12. On the other hand, the rotor 64 is rotatably mounted on the hub axle 12 to rotate around the rotation center axis A1 of the power generator 60. In particular, the rotor 64 is provided to the hub body 14 to rotate together with the hub body 14. Therefore, when the hub body 14 rotates relative to the hub axle 12, the rotor 64 rotates relative to the stator 62 to generate electricity. That is, an induced electromotive force is generated on the stator 62 by the rotation of the rotor 64 and current flows out of the stator 62 of the power generator 60. As Figure 6 、 Figure 9 and Figure 10As shown in FIG, current from the stator 62 is supplied to the electric component 38 via a pair of wires W1 and W2. The wires W1 and W2 are electrically connected to the electronic circuit board 44. Here, the wires W1 and W2 extend through an opening in the end wall portion of the housing 42 and then pass through the power generator 60. Figure 9 As shown in FIG, wires W1 and W2 are electrically connected to the electronic circuit board 44. Figure 6 As shown, the stator 62 has a pair of electric wires. An electric wire (not shown) is electrically connected to the electric wire W1, and an electric wire W4 is electrically connected to the electric wire W2.

[0120] like Figure 6 and Figure 7 As shown, the stator 62 has a first axial stator end 68A facing the first axial end 12a of the shaft 12 relative to the rotation center axis A1, and a second axial stator end 68B facing the second axial end 12b of the shaft 12 relative to the rotation center axis A1. Here, the stator 62 includes an armature provided on the shaft 12. The armature of the stator 62 includes a winding coil 62A and a bobbin 62B.

[0121] The winding coil 62A is wound on a bobbin 62B for supporting the winding coil 62A. The winding coil 62A is made of a conductive metal wire such as a copper wire or an aluminum alloy wire. Wires W3 and W4 are electrically connected to both ends of the winding coil 62A. Wire W3 is electrically connected to wire W1 via a first electrical connector EC1. Wire W4 is electrically connected to wire W2 via a second electrical connector EC2. In this way, the power generated in the winding coil 62A is transmitted to the electronic circuit board 44 of the electric component 38 via the wires W1, W2, W3 and W4. The electronic circuit board 44 then regulates the power received from the winding coil 62A to selectively store the power in the capacitor 54 and / or selectively transmit the power to the outside of the hub assembly 10 via the cable 40 as described below.

[0122] The bobbin 62B is non-rotatably coupled to the hub axle 12. The bobbin 62B has a cylindrical body portion, a first flange portion, and a second flange portion. The cylindrical body portion has an outer circumference around which the winding coil 62A is wound. The first flange portion and the second flange portion are formed at both axial end portions of the cylindrical body portion.

[0123] In the illustrated embodiment, the housing 42 is disposed between the sprocket support structure 30 and the stator 62. The first surface 42a faces the second axial stator end 68B of the stator 62. The first surface 42a is formed by the outer surface of the end wall portion of the housing 42. Preferably, the housing 42 is disposed adjacent to the stator 62 at the second axial stator end 68B of the stator 62 in the axial direction relative to the rotational center axis A1.

[0124] Here, the electronic circuit board 44 is disposed adjacent to the stator 62 at the second axial stator end 68B of the stator 62 in the axial direction relative to the rotational center axis A1. The wires W1 and W2 are connected to the electronic circuit board 44. Specifically, the electronic circuit board 44 has a first axially facing surface 44e that faces toward the stator 62 and a second axially facing surface 44f that faces away from the stator 62. Here, the wires W1 and W2 are electrically connected to the second axially facing surface 44f of the electronic circuit board 44.

[0125] The armature of the stator 62 also includes a plurality of first yokes 62C and a plurality of second yokes 62D. The first yokes 62C are arranged in the circumferential direction of the hub axle 12. Similarly, the second yokes 62D are arranged in the circumferential direction of the hub axle 12 and alternate with the first yokes 62C. The winding coil 62A is located between the first yokes 62C and the second yokes 62D in the axial direction of the hub axle 12. Here, the first yokes 62C and the second yokes 62D are assembled into the grooves of the bobbin 62B so that the first yokes 62C and the second yokes 62D alternate in the circumferential direction around the rotation center axis A1. For example, the first yokes 62C and the second yokes 62D can be attached to the bobbin 62B by an adhesive.

[0126] Each first magnetic yoke 62C may be a laminated yoke composed of multiple laminated sheets, or may be a single sheet. In the case of a laminated yoke, the laminated sheets of the first magnetic yoke 62C are stacked together in the circumferential direction around the rotation center axis A1. The laminated sheets of the first magnetic yoke 62C are composed, for example, of silicon steel sheets (more specifically, non-oriented silicon steel sheets) with an oxide film formed on their surfaces. The laminated sheets of the first magnetic yoke 62C are an example of a plate-like member.

[0127] Similarly, the second magnetic yoke 62D may be a laminated yoke composed of multiple laminated sheets, or it may be a single sheet. In the case of a laminated yoke, the laminated sheets of the second magnetic yoke 62D are stacked together in the circumferential direction around the rotation center axis A1. The laminated sheets of the second magnetic yoke 62D are, for example, made of silicon steel sheets (more specifically, non-oriented silicon steel sheets) with an oxide film formed on their surfaces. The laminated sheets of the second magnetic yoke 62D are an example of a plate-like member.

[0128] The rotor 64 includes at least one magnet. Here, in the illustrated embodiment, the rotor 64 includes a plurality of first magnet portions 64A and a plurality of second magnet portions 64B arranged inside a tubular support member 64C. The tubular support member 64C is fixedly coupled to the interior of the hub body 14 so that the magnets (rotor 64) and the hub body 14 rotate together around the hub axle 12. The tubular support member 64C functions as a back yoke. A back yoke is a member with high magnetic permeability that is disposed on the opposite side of the magnetized surface. By using a back yoke, a highly generated magnetic field can be obtained. The tubular support member 64C can be omitted. Alternatively, the hub body 14 can include a magnet (rotor 64) so ​​that the hub body 14 partially forms the power generator 60. The first magnet portion 64A and the second magnet portion 64B are arranged so that the south pole and north pole of the first magnet portion 64A and the second magnet portion 64B are alternately arranged in the circumferential direction of the hub axle 12. Therefore, the S pole of the first magnet portion 64A is not aligned with the S pole of the second magnet portion, and the N pole of the first magnet portion 64A is not aligned with the N pole of the second magnet portion 64B in the axial direction of the hub axle 12 .

[0129] As described above, the winding coil 62A is shown as being fixed relative to the hub axle 12, and the magnet (rotor 64) is shown as being fixed relative to the hub body 14. Alternatively, the winding coil 62A may be fixed relative to the hub body 14, and the magnet (rotor 64) may be fixed relative to the hub axle 12.

[0130] like Figure 6 、 Figure 9 and Figure 10 As shown, the wires W1 and W2 are electrically connected to the stator 62 at a first axial stator end 68A of the stator 62. The wires W1 and W2 extend axially through the armature of the stator 62. More specifically, the wires W1 and W2 extend axially between the first yoke 62C and the second yoke 62D of the stator 62. Thus, the wires W1 and W2 extend axially through the stator 62 at points radially outward of the winding coil 62A.

[0131] The hub assembly 10 also includes two fixing plates 76 and 78 disposed on the hub axle 12 for non-rotatably connecting the stator 62 of the power generator 60 to the hub axle 12. The fixing plates 76 and 78 are disposed at opposite axial ends of the power generator 60. The fixing plates 76 and 78 have a plate-like shape. The fixing plate 76 includes a plurality of protrusions 76a, and the fixing plate 78 includes a plurality of protrusions 78a. One of the protrusions 76a of the fixing plate 76 is disposed in a groove 12d of the hub axle 12. Similarly, one of the protrusions 78a of the fixing plate 78 is disposed in a groove 12d of the hub axle 12. The other protrusions 76a and 78a are disposed in two other axially extending grooves 12e of the hub axle 12. By inserting the protrusions 76a and 78a into these grooves 12d and 12e of the hub axle 12, the fixing plates 76 and 78 are prevented from rotating relative to the hub axle 12. The stator 62 of the power generator 60 is prevented from rotating relative to the hub axle 12 by the stator 62 engaging with the protrusion 76b protruding from the axially facing surface of the fixing plate 76 and the protrusion 78b protruding from the axially facing surface of the fixing plate 78. The fixing plates 76 and 78 are arranged to sandwich the stator 62 of the power generator 60 from both sides in the axial direction of the stator 62 of the power generator 60. Alternatively, the rotation of the fixing plates 76 and 78 relative to the hub axle 12 can also be suppressed by providing D-shaped cutouts that mate with the corresponding outer surfaces of the hub axle 12. Alternatively, one of the pair of fixing plates 76 and 78 can be omitted.

[0132] In addition, the housing 42 can be non-rotatably coupled to one of the fixing plates 76 and 78 for inhibiting rotation of the housing 42 relative to the hub axle 12. For example, the keyed protrusion 42d of the housing 42 is configured to engage with the opening 78c of the fixing plate 78 that is keyed to the groove 12d of the hub axle 12. The fixing plate 78 includes a plurality of openings 78c corresponding to the keyed protrusions 42d. In this way, the housing 42 is prevented from rotating relative to the hub axle 12. Alternatively, the housing 42 can be attached to a bearing spacer 28 that is non-rotatably coupled to the hub axle 12. The nut 80 is threadedly connected to the hub axle 12 for retaining the stator 62 and the housing 42 on the hub axle 12.

[0133] In understanding the scope of the present invention, the terms "comprising" and their derivatives as used herein are intended to be open-ended terms that specify the 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. The foregoing also applies to words with similar meanings, such as "including," "having" and their derivatives. Furthermore, unless otherwise indicated, the terms "portion," "section," "part," "member," or "element" when used in the singular can have the dual meaning of a single part or a plurality of parts.

[0134] As used herein, the following directional terms "frame-facing side," "non-frame-facing side," "forward," "backward," "front," "back," "up," "down," "above," "below," "upward," "downward," "top," "bottom," "side," "vertical," "horizontal," "perpendicular," and "lateral," and any other similar directional terms, refer to those directions of a human-powered vehicle (e.g., a bicycle) in an upright, riding position and equipped with a hub. Therefore, these directional terms used to describe the hub should be interpreted relative to a human-powered vehicle (e.g., a bicycle) in an upright riding position on a horizontal surface and equipped with a hub. The terms "left" and "right" are used to indicate "right" when referenced from the right side as viewed from the rear of a human-powered vehicle (e.g., a bicycle) and "left" when referenced from the left side as viewed from the rear of a human-powered vehicle (e.g., a bicycle).

[0135] As used in this disclosure, the phrase "at least one" means "one or more" of the desired options. For example, if the number of options is two, the phrase "at least one" used in this disclosure means "only a single option" or "both of the two options." For another example, if the number of options is equal to or greater than three, the phrase "at least one" used in this disclosure means "only a single option" or "any combination of equal to or greater than two options." In addition, the term "and / or" used in this disclosure means "one or both of them."

[0136] Furthermore, it should be understood that although the terms "first" and "second" may be used herein to describe various components, these components should not be limited by these terms. These terms are only used to distinguish one component from another. Thus, for example, the first component discussed above could be referred to as the second component, and vice versa, without departing from the teachings of the present invention.

[0137] As used herein, the terms "attached to" or "attached" encompass configurations where an element is directly affixed to another element by adhering it directly to the other element; where an element is indirectly affixed to the other element by adhering it to an intermediate component; and where one element is integral with the other element, i.e., one element is substantially a part of the other element. This definition also applies to words with similar meanings such as "join," "connect," "couple," "mount," "bond," "secure," and their derivatives. Finally, as used herein, terms such as "substantially," "approximately," and "approximately" refer to a reasonable amount of deviation from the modified term so that the end result is not significantly changed.

[0138] While only selected embodiments have been chosen to illustrate the present invention, it will be apparent to those skilled in the art from this disclosure that various changes and modifications may be made herein without departing from the scope of the present invention, including the scope of the present invention as defined in the appended claims. For example, unless otherwise specifically stated, the size, shape, position, or orientation of various components may be varied as needed and / or desired, provided such variations do not materially affect their intended functionality. Components shown as being directly connected or in contact with one another may have intermediate structures disposed therebetween, provided such variations do not substantially affect their intended functionality, unless otherwise specifically stated. The functions of one element may be performed by two, and vice versa, unless otherwise specifically stated. The structures and functions of one embodiment may be adopted in another embodiment. Not all advantages need to be present in a particular embodiment. Each feature that is unique from the prior art, alone or in combination with other features, should also be considered a separate description of further inventions by the applicant, including the structural and / or functional concepts embodied by such feature. Accordingly, the foregoing description of embodiments according to the present invention is provided for illustration only and is not intended to limit the present invention as defined by the appended claims and their equivalents.

Claims

1. A hub assembly for a human-powered vehicle, the hub assembly comprising: a hub axle having a first axial end and a second axial end; a hub body rotatably mounted on the hub axle to rotate about a rotational center axis of the hub assembly; a cable having a first portion disposed inside the hub assembly and a second portion disposed outside the hub assembly; and a cable protector movably arranged relative to the hub axle between a first position and a second position, the second portion of the cable extending along the rotational center axis when the cable protector is in the first position, and the second portion of the cable being at least partially restrained in a position angled relative to the rotational center axis when the cable protector is in the second position; as well as an end cap configured to be disposed between the hub axle and the frame of the human-powered vehicle, the end cap including a first recess, a second recess, and a cable guide structure including a groove configured to guide the cable, wherein the first recess pivotally couples the cable protector to the end cap, wherein the cable protector is releasably retained in the second recess with the cable protector in the second position and the cable protector is elastically deformed as the cable protector moves into and out of the second recess, wherein the cable guide structure is configured to guide the second portion of the cable.

2. The hub assembly according to claim 1, wherein The cable protector is pivotally mounted relative to the hub axle between a first position and a second position.

3. The hub assembly according to claim 2, wherein The cable protector has a pivot shaft that extends in a twisted or intersecting relationship with respect to the rotational center axis of the hub body.

4. The hub assembly according to claim 1, wherein The cable protector is a wire.

5. The hub assembly according to claim 1, wherein The first portion of the cable extends at least partially along the central axis of rotation.

6. The hub assembly according to claim 4, wherein With a reference plane completely containing the rotational center axis and perpendicular to the pivot axis of the cable protector, the wire has a first end disposed on a first side of the reference plane and a second end disposed on a second side of the reference plane.

7. The hub assembly according to claim 1, wherein The end cap includes a rotation restricting portion configured to be provided between the hub axle and a frame of the human-powered vehicle so that rotation of the hub axle relative to the frame is restricted.

8. The hub assembly according to claim 7, wherein The rotation restricting portion is detachably attached to the hub axle.

9. The hub assembly according to claim 7, wherein The rotation restricting portion includes the cable guiding structure configured to guide the second portion of the cable in a direction angled relative to the rotation center axis.

10. The hub assembly according to claim 9, wherein The cable guiding structure is also configured to guide the cable in a radial direction of the hub axle.

11. The hub assembly according to claim 9, wherein The cable guiding structure includes a groove configured to guide the cable.

12. The hub assembly according to claim 11, wherein The cable protector is attached to the interior of the groove of the cable guide structure.

13. The hub assembly according to claim 11, wherein The cable protector includes a cable restraining portion that is wider than a width of the cable.

14. The hub assembly according to claim 7, wherein The rotation restricting portion includes the first recessed portion and the second recessed portion.

15. The hub assembly according to claim 1, further comprising The electric component is non-rotatably arranged relative to the hub shaft, and wherein The cable is an electrical cable electrically connected to the electric component.

16. The hub assembly according to claim 15, wherein The electric component includes an electronic circuit board, and The cable is electrically connected to the electronic circuit board.

17. The hub assembly according to claim 1, further comprising A power generator is provided to the hub main body and is configured to generate electricity through rotation of the hub main body.

18. The hub assembly according to claim 1, further comprising The sprocket support structure is rotatably provided about the rotation center axis to transmit the driving force to the hub body when rotating about the rotation center axis in a driving rotation direction.

19. A hub assembly for a human-powered vehicle, the hub assembly comprising: a hub axle having a first axial end and a second axial end; a hub body rotatably mounted on the hub axle to rotate about a rotational center axis of the hub assembly; a cable having a first portion disposed inside the hub assembly and a second portion disposed outside the hub assembly; and a cable protector movably arranged relative to the hub axle between a first position and a second position, the cable protector being a wire and disposed on the hub axle, and the second portion of the cable being at least partially restrained in a position angled relative to the rotational center axis; as well as an end cap configured to be disposed between the hub axle and the frame of the human-powered vehicle, the end cap including a first recess, a second recess, and a cable guide structure including a groove configured to guide the cable, wherein the first recess pivotally couples the cable protector to the end cap, wherein the cable protector is releasably retained in the second recess with the cable protector in the second position, and the cable protector is elastically deformed as the cable protector moves into and out of the second recess, Wherein, the cable guiding structure is configured to guide the second portion of the cable.

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