TW202225032A - Hub assembly for human-powered vehicle - Google Patents

Abstract

A hub assembly is provided for a human-powered vehicle. 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 around a rotational center axis of the hub assembly. The cable has a first portion disposed inside of the hub assembly and a second portion disposed outside of 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 where the cable protector is in the first position. The second portion of the cable being at least partly restrained in an angled position with respect to the rotational center axis where the cable protector is in the second position.

Description

Wheel hub assemblies for human-powered vehicles

The present invention generally relates to a wheel hub assembly for a human-powered vehicle.

Some wheels of human-powered vehicles (eg, bicycles) have a hub, spokes, and an annular rim. The hub has a hub axle that is non-rotatably mounted to a frame of a human-powered vehicle. The hub has a hub body that is coaxially coupled to the hub axle such that the hub body is positioned radially outwardly relative to the hub axle. The bearing is shaped and configured to support the hub body such that the hub body can freely rotate about the hub axle. In almost all types of bicycles except fixed gear and track racing, one of the bicycle wheels (usually the rear wheel) has a bicycle freewheel disposed on a hub of the wheel. Bicycle freewheels typically have a one-way clutch function whereby they transmit torque in only one direction. Thus, the use of freewheels allows the bicycle to move freely without requiring any rotation of the pedals (ie, during idling). During idle, the bicycle freewheel is considered to be in a freewheeling state in which the bicycle wheels are free to rotate and the sprockets remain stationary.

In general, the present invention is directed to various features of a wheel hub assembly for a human-powered vehicle. As used herein, the term "human-powered vehicle" refers to a vehicle that can be driven by at least a human driving force, but does not include a vehicle that uses only a driving force other than human power. Specifically, vehicles that exclusively use an internal combustion engine as a driving force are not included in human-powered vehicles. A human-powered vehicle is generally considered a compact light vehicle that sometimes does not require a driver's license to drive on a public road. There is no limit to the number of wheels on a manned vehicle. For example, human-powered vehicles include a unicycle and a vehicle having three or more wheels. For example, human-powered vehicles include various types of bicycles, such as a mountain bike, a road bike, a city bike, a cargo bike, and a recumbent bike, and an electric bicycle (E-bike).

In view of the currently known advanced technology and according to a first aspect of the present invention, a wheel 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 for rotation about a central axis of rotation of the hub assembly. The cable has a first portion disposed inside the hub assembly and a second portion disposed outside the hub assembly. The cable protector is movably disposed relative to the hub axle between a first position and a second position. With the cable protector in the first position, the second portion of the cable extends along the central axis of rotation. With the cable protector in the second position, the second portion of the cable is at least partially confined in an angled position relative to the central axis of rotation.

In the case of the hub assembly according to the first aspect, the cable can be pulled along the central axis of rotation of the hub assembly with the cable protector in the first position, but not when the cable protector is in the first position. The wheel is constrained from moving along the central axis of rotation of the hub assembly when in the second position.

According to a second aspect of the present invention, the hub assembly according to the first aspect is configured such that the cable protector is pivotally mounted relative to the hub axle between the first position and the second position.

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

According to a third aspect of the present invention, the hub assembly according to the second aspect is configured such that the cable protector has a pivot axis extending in a twisted or intersecting relationship with respect to the central axis of rotation of the hub body .

In the case of the hub assembly according to the third aspect, the cable protector can be configured compactly.

According to a fourth aspect of the present invention, the hub assembly according to any one of the first to third aspects is configured such that the cable protector is a wire rod.

In the case of the hub assembly according to the fourth aspect, the cable protector can be easily and inexpensively manufactured. The cable protector may be elastic.

According to a fifth aspect of the present invention, the hub assembly according to any one of the first to fourth aspects is configured such that the first portion of the cable extends at least partially along the central axis of rotation.

With the hub assembly according to the fifth aspect, the cable can be pulled along the central axis of rotation of the hub assembly with the cable protector in the first position.

According to a sixth aspect of the present invention, the hub assembly according to the fourth aspect is configured such that in one of the cases in which a reference plane completely contains the central axis of rotation and is perpendicular to a pivot axis of the cable protector , the wire rod 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.

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

According to a seventh aspect of the present invention, the hub assembly according to any one of the first to sixth aspects further includes a rotation limiting member configured to be disposed between the hub axle and the Between a frame of the human-powered vehicle, the rotation of the hub axle relative to the frame is restricted.

In the case of the hub assembly according to the seventh aspect, the hub assembly can be easily installed in the proper orientation.

According to an eighth aspect of the present invention, the hub assembly according to the seventh aspect is configured such that the rotation limiting member is detachably attached to the hub axle.

In the case of the hub assembly according to the eighth aspect, the rotation limiting member can be easily and inexpensively manufactured and installed in the proper orientation with respect to the cable. The rotation restricting member can be easily replaced.

According to a ninth aspect of the present invention, the hub assembly according to the seventh or eighth aspect is configured such that the rotation limiting member includes a cable guide structure configured to be relative to the The central axis of rotation guides the second portion of the cable in an angular direction.

In the case of the wheel hub assembly according to the ninth aspect, the cable may be properly guided so as not to interfere with other components of the human-powered vehicle.

According to a tenth aspect of the present invention, the hub assembly according to the ninth aspect is configured such that the cable guide structure is further configured to guide the cable in a radial direction of the hub axle.

In the case of the hub assembly according to the tenth aspect, the cable may be guided to avoid contact with other components of the human-powered vehicle.

According to an eleventh aspect of the present invention, the hub assembly according to the ninth or tenth aspect is configured such that the cable guide structure includes a groove configured to guide the cable.

In the case of the hub assembly according to the eleventh aspect, the cable guide structure can be provided inexpensively in a simple configuration.

According to a twelfth aspect of the present invention, the hub assembly according to the eleventh aspect is configured such that the cable protector is attached inside the groove of the cable guide structure.

In the case of the hub assembly according to the twelfth aspect, the cable protector can be easily attached to the rotation limiting member.

According to a thirteenth aspect of the present invention, the hub assembly according to the eleventh or twelfth aspect is configured such that the cable protector includes a cable restraining portion that is wider than a width of the cable.

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

According to a fourteenth aspect of the present invention, the hub assembly according to any one of the seventh to thirteenth aspects is configured such that the rotation limiting member includes a recess, and the cable protector is located at In the second position, the cable protector is releasably retained in the recess.

With the hub assembly according to the fourteenth aspect, the cable protector can be easily attached to the rotation limiting member and the cable protector can be easily placed in the second position relative to the rotation limiting member .

According to a fifteenth aspect of the present invention, the hub assembly according to the fourteenth aspect is configured such that the cable protector elastically deforms as the cable protector moves into and out of the recess.

In the case of the hub assembly according to the fifteenth aspect, the cable protector can be easily attached to and detached from the rotation restricting member. The cable protector 41 can be maintained in the first position or the second position in a coverable manner.

According to a sixteenth aspect of the present invention, the hub assembly according to any one of the first to fifteenth aspects further includes an electrical component non-rotatably positioned relative to the hub axle, and the A cable is electrically connected to one of the electrical components.

In the case of the hub assembly according to the sixteenth aspect, it is possible to deliver electricity to and/or from the hub.

According to a seventeenth aspect of the present invention, the hub assembly according to the sixteenth aspect is configured such that the electrical component includes a circuit board, and the cable is electrically connected to the circuit board.

In the case of the wheel hub assembly according to the seventeenth aspect, it is possible to obtain various information about the wheel hub assembly using the circuit board.

According to an eighteenth aspect of the present invention, the wheel hub assembly according to any one of the first aspect to the seventeenth aspect further includes an electric power generator, the electric power generator being provided to the hub body and configured to be Shaped to generate electricity by the rotation of the hub body.

In the case of the hub assembly according to the eighteenth aspect, it is possible to generate electric power from the rotation of the hub.

According to a nineteenth aspect of the present invention, the hub assembly according to any one of the first to eighteenth aspects further includes a sprocket support structure around the rotation center axis to is rotatably positioned to transmit a driving force to the hub body while rotating in a driving rotational direction about the rotational center axis.

With the hub assembly according to the nineteenth aspect, the sprocket support structure acts as a freewheel to allow the sprocket support structure to stop rotating during idle.

According to a twentieth aspect of the present invention, there is provided a hub assembly for a human-powered vehicle, the hub assembly including 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 for rotation about a central axis of rotation of the hub assembly. The cable has a first portion disposed inside the hub assembly and a second portion disposed outside the hub assembly. The cable protector is a wire rod and is positioned on the hub axle. The second portion of the cable is at least partially constrained in an angular position relative to the central axis of rotation.

In the case of the hub assembly according to the twentieth aspect, the cable may be confined in a position to avoid interfering with other components of the human-powered vehicle.

Furthermore, other objects, features, aspects and advantages of the disclosed hub assemblies will be apparent to those skilled in the art from the following detailed description of the preferred embodiments of the disclosed hub assemblies taken in conjunction with the accompanying drawings.

Selected embodiments will now be explained with reference to the drawings. As will be apparent to those skilled in the field of human-powered vehicles (eg, bicycles) in light of the present invention, the following description of the embodiments is provided for illustration only and not for the purpose of limiting the invention, which is defined by the appended claims and its scope. equivalent content.

Referring initially to FIG. 1 , a wheel hub assembly 10 is provided to a man-powered vehicle V. FIG. In other words, human-powered vehicle V (ie, a bicycle) is illustrated as being equipped with a wheel hub assembly 10 according to an illustrated embodiment. Here, in the illustrated embodiment, the hub assembly 10 is a bicycle wheel hub. More specifically, the wheel hub assembly 10 series is a bicycle rear wheel hub. Also, here, in the illustrated embodiment, the hub assembly 10 is used to provide electrical power to a hub generator of 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 that do not generate electricity may be provided. Also, although the hub assembly 10 is illustrated as a rear hub, some aspects of the hub assembly 10 may be provided to a front hub. Therefore, the hub assembly 10 is not limited to a rear hub.

Here, the human-powered vehicle V is an electric bicycle (E-bicycle). Alternatively, the human-powered vehicle V may be a road bike, a city bike, a cargo bike and a recumbent bike, or another type of off-road bike, such as a road bike. As seen in FIG. 1, 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 basically includes a front frame body FB and a rear frame body RB (a swing arm). The vehicle body VB also has a handlebar H and a front fork FF for steering the front wheel FW. The rear frame body RB is swingably mounted to a rear section of the front frame body FB so that the rear frame body RB can pivot relative to the front frame body FB. The rear wheel RW is mounted to one rear end of the rear frame body RB. A rear shock absorber RS is operatively positioned between the front frame body FB and the rear frame body RB. The rear shock absorber RS is disposed between the front frame body FB and the rear frame body RB to control the movement of the rear frame body RB relative to the front frame body FB. That is, the rear shock absorber RS absorbs the shock transmitted from the rear wheel RW. The rear wheel RW is rotatably mounted to the rear frame body RB. The front wheel FW is attached to the front frame body FB via the front fork FF. That is, the front wheel FW is mounted to a lower end of the front fork FF. A height adjustable seatpost ASP is mounted in a conventional manner to a seat tube of the front frame body FB and supports a bicycle seat or saddle S in any suitable manner. The front fork FF is pivotally mounted to a head tube of the front frame body FB. The handlebar H is mounted to an upper end of a steering column or a steering tube of the front fork FF. The front fork FF absorbs the vibration 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 stroke length of the rear shock absorber RS and front fork FF can be adjusted.

The human-powered vehicle V further includes a drive train DT and an electric drive unit DU operatively coupled to the drive train DT. Here, for example, the drive train DT is a chain drive type that includes a crank C, a front sprocket FS, a plurality of rear sprockets CS, and a chain CN. The crank C includes a crank axle CA1 and a pair of crank arms CA2. The crank axle CA1 is rotatably supported to the front frame body FB via the electric drive unit DU. The crank arm CA2 is disposed on the opposite end of the crank axle CA1. A pedal PD is rotatably coupled to the distal end of each of the crank arms CA2. The drive train DT may be selected from either type, and may be a belt-driven type or a shaft-driven type.

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

The human-powered vehicle V further includes a bicycle computer SC. Here, the bicycle computer SC is attached to the front frame body FB. Alternatively, the bicycle computer SC can be installed on the handlebar H. The bicycle computer SC notifies the rider of various travel and/or operating conditions of the human-powered vehicle V. The cycle computer SC may also contain various control programs for automatically controlling one or more vehicle components. For example, the bicycle computer SC may be provided with an automatic shift program for changing the gear of the rear derailleur RD based on one or more travel and/or operating conditions of the human-powered vehicle V.

Here, the human-powered vehicle V further 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 one type of shifting device. Here, the rear derailleur RD is an electric transmission (ie, an electric shifting device or an electric transmission device). Here, the rear derailleur RD is provided on the rear side of the rear frame body RB in the vicinity of the hub assembly 10 . The rear derailleur RD is operable when a rider of the human-powered vehicle V manually operates a shift operating device or shifter SL. The rear derailleur RD may also operate automatically based on the traveling and/or operating conditions of the human-powered vehicle V. The human-powered vehicle V may further include a plurality of electronic components. Some or all of these electronic components may be supplied with electrical power produced by the hub assembly 10 during a power producing state, as discussed herein.

The structure of the hub assembly 10 will now be described with specific reference to FIGS. 2-8 . The hub assembly 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 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 a central axis of rotation A1 of the hub assembly 10 . The hub axle 12 has a central axis coaxial with the rotational central axis A1. The hub body 14 is rotatably disposed about the rotation center axis A1. In other words, the hub body 14 is rotatably mounted about the hub axle 12 .

As seen in Figures 5-7, the hub axle 12 is a rigid member made of a suitable material, such as a metallic 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. Accordingly, the hub axle 12 has an axial bore 12c extending between the first axial end 12a and the second axial end 12b. The hub axle 12 may be a one-piece member or be made from several pieces. Here, the hub axle 12 has a first end piece or end cap 16 and a second end piece or end cap 18 . The first end cap 16 is mounted to the first axial end 12a (left side in FIGS. 2 to 8 ) of the hub axle 12 , and the second end cap 18 is mounted to the second axial end 12b of the hub axle 12 ( FIGS. 2 to 8 ) Figure 8, right). For example, the first end cap 16 is fastened to the first axial end 12a of the hub axle 12, and the second end cap 18 is fastened to the second axial end 12b of the hub axle 12 by a fixing bolt 20 , the fixing bolt is screwed into the axial bore 12c of the hub axle 12 . In this manner, the first end cap 16 and the fixing bolt 20 are received in the mounting opening of the rear frame body RB, as seen in FIG. 2 .

The hub assembly 10 further includes a rotation limiting member 21 configured to be positioned between the hub axle 12 and a frame (rear frame body RB) of the human-powered vehicle V such that the hub axle 12 is relative to the vehicle V. The rotation of the frame (rear frame body RB) is restricted. Here, the second end cap 18 includes a rotation limiting member 21 also received in one of the mounting openings of the rear frame body RB. The rotation restricting member 21 engages the rear frame body RB so that the rotation of the hub axle 12 relative to the rear frame body RB is restricted. The second end cap 18 is detachably attached to the hub axle 12 using set bolts 20 . Therefore, the rotation restricting member 21 is detachably attached to the hub axle 12 .

Here, as seen in Figures 2 and 5, the hub assembly 10 further 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 holding mechanism 22 basically includes a shaft member or string rod 22a, a cam body 22b, a cam lever 22c and an adjusting nut 22d. The cam lever 22c is attached to one end of the string rod 22a via the cam body 22b, and the adjusting nut 22d is screwed on the other end of the string rod 22a. The cam lever 22c is attached to the cam body 22b. The cam body 22b is coupled between the string rod 22a and the cam lever 22c to move the string rod 22a relative to the cam body 22b. Therefore, the cam lever 22c is operated to move the string rod 22a relative to the cam body 22b in the axial direction of the rotation center axis A1 so as to change the distance between the cam body 22b and the adjusting nut 22d. Preferably, a compression spring is provided at each end of the string 22a. Wheel retention mechanism 22 is sometimes referred to as a quick release strut. The wheel retention 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 strut 22a. Alternatively, if needed and/or desired, the hub axle 12 may be non-rotatably attached to the rear frame body RB using other attachment structures.

As indicated in FIGS. 1 , 3 and 4 , the hub body 14 is rotatably mounted about the hub axle 12 for rotation in a drive rotational direction D1 . The driving rotation direction D1 corresponds to the forward driving direction of one of the rear wheels 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 a peripheral surface of the hub main body 14 with respect 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 ( FIG. 1 ) for attaching a rim ( FIG. 1 ) of the rear wheel RW to the hub body 14 . In this manner, the hub body 14 is coupled for common rotation with the rear wheel RW.

As seen in FIGS. 5 and 7 , 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 that 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 with respect to the rotation center axis A1. The first hub body bearing 24 includes a first inner race 24a, a first outer race 24b and a plurality of first roller elements 24c. The first roller elements 24c are disposed between the first inner race 24a and the first outer race 24b. The second hub body bearing 26 includes a second inner race 26a, a second outer race 26b and a plurality of second roller elements 26c. The second roller element 26c is disposed between the second inner race 26a and the second outer race 26b. The first hub body bearing 24 and the second hub body bearing 26 are radial ball bearings. Radial ball bearings support forces in a direction perpendicular to the shaft. Additionally, a radial roller bearing may be used instead of a radial ball bearing. Radial roller bearings include cylindrical roller bearings and needle roller bearings.

Here, the hub assembly 10 further includes a bearing spacer 28 . Bearing spacers 28 are provided on the hub axle 12 and support 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 disposed to the hub axle 12 and an outer peripheral end 28b spaced radially outward from the inner peripheral end 28a in a radial direction relative to the rotational center axis A1. The second hub body bearing 26 is disposed 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 seen in FIG. 4 , the inner peripheral end 28a defines a non-circular opening 28a1 that mates with a non-circular portion of the hub axle 12 such that the bearing spacer 28 is inaccessible relative to the hub axle 12 . Rotationally coupled. 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 tightened to the hub axle 12 . Here, the bearing spacer 28 includes an axial opening 28c.

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 seen in FIG. 2 . The sprocket support structure 30 is rotatably disposed about the rotation center axis A1 to transmit a driving force to the hub main body 14 while rotating in a driving rotation direction about the rotation center axis A1. As explained below, the sprocket support structure 30 does not transmit a driving force to the hub body 14 while rotating in a non-driving rotational direction D2 about the rotational center axis A1. The non-driving rotational direction D2 is opposite to the driving rotational direction D1 with respect to the rotational center axis A1. The rotation center axis of the sprocket support structure 30 and the rotation center axis A1 of the hub assembly 10 are arranged concentrically.

Although the sprocket support structure 30 is configured to non-rotatably support the rear sprocket 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 either case, the sprocket support structure 30 and the rear sprocket CS are coupled together for common rotation in both the driving rotational direction Dl and the non-driving rotational direction D2.

The wheel hub assembly 10 further includes a first sprocket support bearing 32 and a second sprocket support bearing 34 . The first sprocket support bearing 32 rotatably supports a first end 30a of the sprocket support structure 30 . The second sprocket support bearing 34 rotatably supports a second end 30b of the sprocket support structure 30 . The first sprocket support bearing 32 and the second sprocket support bearing 34 have an outer diameter 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 sprocket support bearing 32 and the second sprocket support bearing 34 can be mounted on the hub axle 12 from the second axial end 12 b 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 element 32c is 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 support forces in a direction perpendicular to the axis. Additionally, a radial roller bearing may be used instead of a radial ball bearing. Radial roller bearings include cylindrical roller bearings and needle roller bearings. A tubular spacer element 35 is positioned between the first sprocket support bearing 32 and the second sprocket support bearing 34 .

As seen in FIGS. 5-7 , the hub assembly 10 further includes an electrical assembly 36 . The electrical assembly 36 includes an electrical component 38 . Accordingly, the hub assembly 10 further includes electrical components 38 . The electrical assembly 38 is non-rotatably positioned relative to the hub axle 12 and the electrical cable 40 is electrically connected to one of the electrical cables. Although the electrical components 38 are part of the wheel hub assembly 10, the electrical components 38 may be used with other components of the human-powered vehicle. The electrical assembly 38 has an opening 38a for receiving the hub axle 12 therethrough. Accordingly, the electrical assembly 38 is supported on the hub axle 12 . As explained later, the electrical assembly 38 is non-rotatably mounted on the hub axle 12 .

The hub assembly 10 further includes a cable 40 . As seen in FIG. 5 , the cable 40 enters the hub assembly 10 through one of the openings 18 a of the end cap 18 . Here, as seen in FIG. 9 , the cable 40 is electrically connected to one of the electrical components 38 . The cable 40 has a first end 40a and a second end 40b. The cable 40 has a longitudinal axis C1 extending between the first end 40a and the second end 40b. The first end 40a is spaced from the second end 40b by an intermediate section 40c of the cable 40 . The first end 40a is electrically connected to the electrical assembly 38 . The second end 40b is electrically connected to another electrical component of the human-powered vehicle V, such as the rear derailleur RD, the battery pack BP, or an electrical connection. Here, the second end 40b is an electrical connector.

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 . Basically, the first portion 40d of the cable 40 extends at least partially along the rotational center axis A1. The cable 40 extends through the opening 18a of the end cap 18 to the outside of the hub assembly 10 . Thus, the second portion 40e of the cable 40 corresponds to the portion of the cable 40 exiting the opening 18a of the end cap 18 and the first portion 40d corresponds to the cable 40 not exposed from the hub assembly 10 . Here, the opening 18a of the end cap 18 has a central axis B1 parallel to the rotational central axis A1 of the hub assembly 10 . The opening 18a may have a central axis B1 along the rotational central axis A1. Here, in the illustrated embodiment, the rotation limiting member 21 includes a cable guiding structure 21a that is configured to guide the second portion 40e of the cable 40 in an angular direction relative to the central axis A1 of rotation. Also, in the illustrated embodiment, the cable guide structure 21a is further configured to guide the cable 40 in one of the radial directions of the hub axle 12 . Preferably, the cable guide structure 21a includes a groove 21b that is configured to guide the cable 40 .

Preferably, as in the illustrated embodiment, the cable 40 is seated in an axially extending recess or groove 12d of the hub axle 12, as seen in FIG. Thus, the groove 12d constitutes a cable receiving channel of the cable 40 . For example, the groove 12d extends from the second axial end 12b into the interior of the housing 42 of the electrical component 38 . In this manner, the cable 40 may be located in the groove 12d between the electrical component 38 and the second axial end 12b of the hub axle 12 . Here, the groove 12d extends through the power generator 60 from the second axial end 12b.

The hub assembly 10 further includes a cable protector 41 . Basically, the cable protector 41 is placed on the hub axle 12 . More specifically, the cable protector 41 is seated on the end cap 18 . Even more specifically, the cable protector 41 is disposed on the rotation limiting member 21 of the end cap 18 . The cable protector 41 is movably disposed relative to the hub axle 12 between a first position and a second position. With the cable protector 41 in the first position, the second portion 40e of the cable 40 extends along the rotation center axis A1. With the cable protector 41 in the second position, the second portion 40e of the cable 40 is at least partially confined in an angled position relative to the rotational center axis A1. In the illustrated embodiment, the cable protector 41 is used with the hub axle 12 having a quick release strut (the wheel retention mechanism 22). Here, the rear frame body RB has a pair of U-shaped axle attachments each having an open-ended slot for receiving a portion of the strut 22a. In other words, when the hub assembly 10 is used with a quick release strut, there is nothing in the axial direction other than the cable protector 41 to limit the outward movement of the cable 40 when the wheel is attached to the rear frame body RB. Thus, in this type of quick release configuration, the cable protector 41 is particularly useful to maintain the cable 40 in a bent position when the cable protector 41 is in the second position.

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. The pivot axis P1 extends in a twisted or intersecting relationship with respect to the rotational center axis A1 of the hub body 14 . Therefore, the pivot axis P1 is not parallel to the rotation center axis A1 of the hub body 14 . Here, the pivot axis P1 is angled perpendicularly with respect to the rotation center axis A1.

Here, the cable protector 41 is a wire rod. The bar of the cable protector 41 has a first end 41a and a second end 41b. The first end 41 a and the second end 41 b are coupled to the rotation limiting member 21 of the end cap 18 . More specifically, the cable protector 41 is attached inside the groove 21b of the cable guide structure 21a. Preferably, the rotation limiting member 21 further includes a pair of recesses 21c and a pair of recesses 21d cooperating with the cable protector 41, as discussed below.

Also, the cable protector 41 further includes a cable restricting portion 41c that is wider than one width of the cable 40. As shown in FIG. The cable restraint portion 41c is configured to contact the second portion 40e of the cable 40 with the cable protector 41 in the second position. The cable restraining portion 41c is also wider than a lateral width of the groove 21b of the cable guiding structure 21a. The cable protector 41 has a first leg portion 41d and a second leg portion 41e. The cable protector 41 is maintained in the second position when each of the leg portions 41d and 41e is engaged with one of the recesses 21c. The first leg portion 41d and the second leg portion 41e are configured to engage the cable guide structure 21a such that the cable protector 41 can be maintained by a spring force of the first leg portion 41d and the second leg portion 41e in the first position or the second position. That is, the cable protector 41 can be maintained in the first position or the second position in a coverable manner. Specifically, in order to install and/or remove the cable protector 41 in the recessed portion 21c of the rotation restricting member 21, the cable protector 41 is moved into and from the recessed portion 21c of the rotation restricting member 21 when the cable protector 41 is moved. Elastically deforms when removed.

Here, the rotation limiting member 21 includes a recess (eg, recess 21c) and a cable protector 41 to which the cable protector 41 is releasably held with the cable protector 41 in the second position (eg, in the recess 21c). In other words, the rotation limiting member 21 is provided with at least one recess to releasably hold 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 member 21 . In particular, the first end 41a of the cable protector 41 is disposed in one of the recesses 21d, and the second end 41b is disposed in the other of the recesses 21d. The first end 41a and the second end 41b define a pivot axis P1 of the cable protector 41 . In the illustrated embodiment, since the recess 21d is an elongated slot, the pivot axis P1 may not be fixed relative to the rotation limiting member 21 . Rather, a displacement of the pivot axis P1 along the recess 21d is possible. However, with each of the leg portions 41d and 41e engaging one of the recesses 21c, displacement of the cable protector 41 along the recess 21d is limited. In addition, a recess or a 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 displacement of the cable protection member 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.

Here, as seen in Figure 23, the recess 21c is located on the opposite side of the groove 21b of the cable guiding structure 21a. Each of the recesses 21c is located on one of the surfaces of the grooves 21b facing each other so as to hold the cable 40 . Likewise, the recess 21d is also located on the opposite side of the groove 21b of the cable guiding structure 21a. Each of the recesses 21d is located on one of the surfaces of the grooves 21b facing each other so as to hold the cable 40 . Furthermore, on each side of the groove 21b, the corresponding ones of the recesses 21c and 21d are aligned. In the case of this configuration, the first end 41a is disposed on a first side of the reference plane RP 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 , and the second end 41b is disposed on a second side of the reference plane RP. In other words, when the cable protector 41 is in the first (non-limiting) position, as seen in Figures 15, 16, 21 and 22, the first end 41a is seated in the recess 21d on the first side of the reference plane RP , and the second end 41b is disposed in the recess 21d on the second side of the reference plane RP. In this way, in the first (non-restricting) position, the cable protector 41 can freely move relative to the rotation limiting member 21 when the first end 41a and the second end 41b are located in the recess 21d. When the cable protector 41 is in the second (restricted) position, as seen in Figures 17, 18 and 23-25, the first and second ends 41a and 41b are seated in the recess 21d, and the leg portion 41d and 41e are placed in the recess 21c. In this way, in the second (restricting) position, movement of the cable protector 41 relative to the rotation restricting member 21 is restricted. In the illustrated embodiment, the recesses 21c are mirror images of each other with respect to the reference plane RP. Likewise, the recesses 21d are mirror images of each other with respect to the reference plane RP. The concave portion 21c and the concave portion 21d have openings that directly communicate with the grooves 21b of the cable guiding structure 21a. The recessed portion 21c and the recessed portion 21d each have a width extending in a direction parallel to the rotational center axis A1 of the hub main body 14, wherein the width is equal to or slightly larger than the diameter of the electric wire forming the cable protector 41 .

Here, the electrical assembly 38 includes a housing 42 . The housing 42 is configured to define an opening 38a that receives the electrical components 38 of the hub axle 12 . The housing 42 has a first surface 42a, a second surface 42b and the 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 electrical 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 and 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 electrical assembly 38 .

Here, the electrical assembly 38 further includes a spacer 43 disposed between the hub axle 12 and the electrical assembly 38 in a radial direction with respect to the rotation center axis A1. In other words, the hub assembly 10 further includes a spacer 43 disposed between the hub axle 12 and the electrical component 38 in a radial direction with respect to the rotational center axis A1. The spacer 43 is a tubular support having a cylindrical guide portion 43a and an annular abutment portion 43b. The guide portion 43 a is included in the spacer 43 .

Furthermore, the electrical assembly 38 includes a circuit board 44 . An electrical assembly 38 is housed in the hub body 14 . Accordingly, the circuit board 44 is housed in the housing 42 . The cable 40 is electrically connected to the circuit board 44 . Specifically, the first end 40a of the cable 40 is electrically connected to the circuit board 44 .

As seen in FIG. 5 , the cable 40 enters the hub assembly 10 through one of the openings 18 a of the end cap 18 . The cable 40 then extends axially along the hub axle 12 and through the bearing spacer 28 . Cable 40 passes through cover 46 into housing 42 of electrical assembly 38 .

In the illustrated embodiment, the housing 42 includes a housing body 45 and a cover 46 . A cover 46 is attached to the housing body 45 to enclose the circuit board 44 within the housing 42 . Here, the cover 46 is joined to the housing body 45 by adhesive or welding. However, the cover 46 may be attached to the housing body 45 by threaded fasteners, rivets, or the like. Preferably, the housing body 45 and the cover 46 are rigid members made of a suitable material. For example, the housing body 45 and the cover 46 are made of a resin material. For example, housing body 45 and cover 46 may each be injection molded components. In the illustrated embodiment, the bearing spacer 28 is securely attached to the housing 42 by a plurality of threaded fasteners 47 . Threaded fasteners 47 are screwed into cover 46 of housing 42 .

The housing 42 is non-rotatable relative to the hub axle 12 . In the illustrated embodiment, the circuit board 44 is housed in a housing 42 that is non-rotatable relative to the hub axle 12 . The housing 42 is configured to accommodate the circuit board 44 as well as other item components. Specifically, the housing 42 has an outer peripheral surface defining an inner space 42c in which the circuit board 44 is seated. The first surface 42a of the housing 42 includes a plurality of keying protrusions 42d. As explained later, the keying protrusion 42d may be configured to engage a non-rotatable member provided to the hub axle 12 to non-rotatably couple the housing 42 to the hub axle 12 .

As seen in FIGS. 5-8 and 10 , the cover 46 is coupled to the housing body 45 to protect the circuit board 44 and other components contained in the housing 42 . The cover 46 covers the inner space 42c of the housing main body 45 . Accordingly, at least the housing 42 , the circuit board 44 and the capacitor 54 may be considered to constitute an electrical unit disposed in the hub body 14 . The inner space 42c has a doughnut shape such that the hub axle 12 passes through a central area of the housing 42 . In this manner, the circuit board 44 is non-rotatable relative to the hub axle 12 . The circuit board 44 is positioned perpendicular to the rotation center axis A1. Circuit board 44 is one component of electrical assembly 38 .

As seen in FIG. 9, in the illustrated embodiment, the circuit board 44 has an arcuate shape. Here, the circuit board 44 has a first circumferential end portion 44a and a second circumferential end portion 44b. The circuit board 44 also has at least one arcuate edge extending at least partially from the first circumferential end portion 44a to the second circumferential end portion 44b. Here, the at least one arc-shaped edge includes at least one of an inner arc-shaped edge 44c and an outer arc-shaped edge 44d relative to the rotation center axis A1. The circuit board 44 further includes an electronic controller 48 disposed on the circuit board 44 . The electronic controller 48 is configured to receive a detection signal from the rotation detection sensor 52 . Electronic controller 48 includes at least one processor that executes predetermined control programs. For example, the at least one processor may be a central processing unit (CPU) or a micro processing unit (MPU). As used herein, the term "electronic controller" refers to hardware that executes a software program, and does not include a human being. Preferably, the circuit board 44 further includes a data storage device (memory) disposed on the circuit board 44 . The data storage device (memory) stores various control programs and information for various control programs including power generation control, power storage control, wheel rotation detection control, and the like. Data storage devices include any computer storage devices or any non-transitory computer-readable media, other than the only transitory broadcast signal. For example, the data storage device includes a non-volatile memory and a volatile memory. For example, non-volatile memory includes a Read Only Memory (ROM), an Erasable Programmable Read Only Memory (EPROM), an Electrically Erasable Programmable Read Only Memory (EEPROM), and at least one of a flash memory. For example, volatile memory includes a random access memory (RAM).

As seen in FIG. 8 , the hub assembly 10 further includes a detected component 50 coupled to the sprocket support structure 30 . In particular, the detected member 50 is secured to the sprocket support structure 30 such that the detected member 50 and the sprocket support structure 30 rotate together about the hub axle 12 . The hub assembly 10 further includes a rotation detection sensor 52 configured to detect the detected component 50 in order to detect the rotation of the sprocket support structure 30 about the central axis of rotation 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 component 50 disposed to the sprocket support structure 30 . Specifically, the rotation detection sensor 52 is disposed in the inner space 42c of the housing 42 . In this way, the rotation detection sensor 52 is mounted to the hub axle 12 in a non-rotatable manner. Therefore, the rotation detection sensor 52 does not rotate with the hub body 14 . The rotation detection sensor 52 is also a component of the electrical assembly 38 . The rotation detection sensor 52 is electrically connected to the circuit board 44 . As seen in FIG. 8 , the rotation detection sensor 52 is disposed in the hub body 14 at a location spaced radially outward from the hub axle 12 .

As seen in FIGS. 8-10 , the rotation detection sensor 52 is disposed at a position axially aligned within the axial opening 28 c of the bearing spacer 28 . In this way, the bearing spacer 28 does not interfere with the rotation detection sensor 52 provided to the detected component 50 of the sprocket support structure 30 . As seen in FIGS. 8-10 , the rotation detection sensor 52 is disposed at a location separate from the circuit board 44 . Specifically, the rotation detection sensor 52 is disposed at a position separated from the circuit board 44 in a direction parallel to the rotation center axis A1. The rotation detection sensor 52 is electrically connected to the circuit board 44 .

In the illustrated embodiment, the rotation detection sensor 52 includes a magnetic sensor, and the detected component 50 includes a magnet. Thus, the magnetic sensor detects the movement of the magnets that rotate with the sprocket support structure 30 . In other words, with this configuration, the rotation detection sensor 52 is configured to detect the detected component 50 in order to detect the rotation of the sprocket support structure 30 about the rotation center axis A1. The electronic controller 48 is configured to receive a detection signal from the rotation detection sensor 52 .

Here, the magnet system of the detected part 50 has an annular member with staggered S-pole segments and N-pole segments. In this way, the rotation detection sensor 52 can detect a rotation amount and a rotation direction of the sprocket support structure 30 . However, the detected component 50 is not limited to the illustrated annular member. For example, the detected member 50 may be formed from a single non-ring-shaped magnet or two or more magnets circumferentially spaced about the central axis of rotation A1. Where two or more circumferentially spaced magnets are used, a back yoke may be provided, and the circumferentially spaced magnets may be provided to the back yoke. In this manner, the circumferentially spaced magnets can be easily installed in the hub assembly 10 . As used herein, the term "sensor" refers to a hardware device designed to detect the presence or absence of a particular event, object, substance, or a change in its environment and transmit a signal in response thereto or instrument. As used herein, the term "sensor" does not include a person.

The hub assembly 10 further includes at least one capacitor 54 electrically connected to the circuit board 44. The at least one capacitor is electrically connected to the at least one conductor. Here, the electrical assembly 38 includes two capacitors 54 . Capacitor 54 is an example of a power storage device for electrical component 38 . In other words, capacitor 54 is also a component of electrical component 38 . Capacitor 54 is preferably positioned within housing 42 of hub assembly 10 . Accordingly, the capacitor 54 is non-rotatably supported on the hub axle 12 by the housing 42 .

As explained below, an additional conductor electrically connects the rotation detection sensor 52 and the circuit board 44 . Also, here, the electrical component 38 includes a first conductor 56A and a pair of second conductors 56B. The rotation detection sensor 52 is electrically connected to the circuit board 44 through the first conductor 56A. Here, the first conductor 56A is a flexible strip conductor. The first conductor 56A may be a conductive lead. On the other hand, the circuit board 44 is electrically connected to the capacitor 54 by 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 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 circuit board 44 . Here, the second conductor 56B is a flexible strip conductor. The second conductor 56B may be a conductive lead. The capacitor 54 is disposed in the interior space of the housing 42 at a location other than on the electronic circuit board 44 . Capacitor 54 may be held in housing 42 using an adhesive or the like. The cover 46 is coupled to the case body 45 to protect the capacitor 54 disposed inside the case 42 .

The circuit board 44 is electrically connected to the rotation detection sensor 52 and the capacitor 54 . In this manner, capacitor 54 provides power to circuit board 44 and other electrical components that are electrically connected to circuit board 44 . For example, capacitor 54 provides power to rotation detection sensor 52 . Also, the electronic controller 48 of the circuit board 44 is configured to control the input and output of power from the capacitor 54 .

As seen in FIGS. 5-7 , 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 further includes a biasing member 58B that couples the pawl 58A to the sprocket support structure 30 . The one-way clutch 58 further includes a plurality of ratchet teeth 58C. The ratchet teeth 58C are provided to a retaining ring 58D which is secured to the hub body 14 . The ratchet teeth 58C are provided on the inner peripheral surface of the fixing ring 58D. The retaining ring 58D is screwed to the hub body 14 . The retaining ring 58D is made of a hard material such as metal. The fixed ring 58D abuts against the second outer race 26b of the second hub body bearing 26 in the axial direction with respect to the rotation center axis A1. Opposite sides in the axial direction of the second outer race 26b of the second hub body bearing 26 abut against a step formed in the hub body 14 . The axial movement of the second outer race 26b of the second hub body bearing 26 is limited by the retaining ring 58D and the step formed on the hub body 14 . Biasing element 58B biases pawl 58A into engagement with ratchet teeth 58C of retaining ring 58D. Biasing element 58B presses pawl 58A against sprocket support structure 30 such that pawl 58A pivots toward engagement with ratchet teeth 58C of retaining ring 58D. A sealing member 58E is provided on the fixing ring 58D. The sealing member 58E is formed in a hoop shape. The tongue portion of the sealing member 58E is in contact with the outer peripheral surface of the sprocket support structure 30 .

In this manner, the sprocket support structure 30 is coupled to the hub body 14 for common rotation in the drive rotational direction D1 about the rotational center axis A1. Also, in a situation where the sprocket support structure 30 rotates in the non-driven rotational direction D2, the ratchet teeth 58C of the sprocket support structure 30 push the pawl 58A and pivot the pawl 58A to a retracted position against the chain Wheel support structure 30 . Accordingly, the sprocket support structure 30 is configured to rotate relative to the hub body 14 in the non-driven rotational direction D2 about the rotational center axis A1. In this manner, the sprocket support structure 30 and the one-way clutch 58 form a freewheel that is commonly used in bicycles. Since the basic operation of the freewheel is relatively conventional, the freewheel will not be discussed or illustrated in further detail.

As seen in FIGS. 5-7 , the hub assembly 10 includes a power generator 60 . Here, the power generator 60 is considered a component of the electrical assembly 36 . In other words, the electrical assembly 36 includes the electrical power generator 60 . Cable 40 is electrically connected to power generator 60 via circuit board 44 . In this manner, cable 40 may provide electrical power generated by hub assembly 10 to rear derailleur RD, battery pack BP, or another electrical component. The cable 40 may also be used to transmit signals from the electronic controller 48 of the circuit board 44 to the rear derailleur RD or another electrical component using power line communication (PLC).

A power generator 60 is provided to the hub body 14 and is configured to generate electricity by 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 a central portion of the hub body 14 . In the illustrated embodiment, the hub body 14 is rotatably mounted on the hub axle 12 for rotation about a central axis of rotation A1 of the power generator 60 . The power generator 60 is configured to generate power by rotation of the hub body 14 relative to the hub axle 12 . The electronic controller 48 of the circuit board 44 is electrically connected to the power generator 60 to control the power output of the power generator 60 . Thus, the power generated by the power generator 60 may be stored and/or directly supplied to other components, such as the rotation detection sensor 52, the rear derailleur RD, and the like.

Although the power generator 60 is illustrated and described as a component of the wheel hub assembly 10 , the power generator 60 may be applied to a different component of the human-powered vehicle V. FIG. Generally speaking, the power generator 60 includes a shaft, a stator and a rotor . Accordingly, the following description of power generator 60 is not limited to use as a component of a wheel hub assembly. Rather, the following description of the power generator 60 may be adapted to other components of the human-powered vehicle V for generating electricity.

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 about one of the rotation center axes A1 of the power generator 60 . In particular, the rotor 64 is provided to the hub body 14 for rotation with the hub body 14 . Thus, as the hub body 14 rotates relative to the hub axle 12, the rotor 64 rotates relative to the stator 62 to generate electrical power. That is, an induced electromotive force is generated on the stator 62 by the rotation of the rotor 64 and a current flowing outward from the stator 62 of the power generator 60 . As seen in FIGS. 6 , 9 and 10 , current is supplied from the stator 62 to the electrical components 38 via a pair of wires W1 and W2 . The wires W1 and W2 are electrically connected to the circuit board 44 . Here, the wires W1 and W2 extend through openings in an end wall portion of the housing 42 and then pass through the power generator 60 . As seen in FIG. 9 , the wires W1 and W2 are electrically connected to the circuit board 44 . As seen in Figure 6, the stator 62 has a pair of wires. A wire (not shown) is electrically connected to the wire W1, and the wire W4 is electrically connected to the wire W2.

6 and 7, the stator 62 has a first axial stator end 68A facing the first axial end 12a of the axle 12 with respect to the rotational center axis A1 and a first axial stator end 68A facing the axle 12 with respect to the rotational center axis A1 A second axial stator end 68B of the second axial end 12b. Here, the stator 62 includes an armature mounted on the axle 12 . The armature of the stator 62 includes a winding coil 62A and a bobbin 62B.

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

The spool 62B is non-rotatably coupled to the hub axle 12 . The spool 62B has a cylindrical stem portion, a first flange portion, and a second flange portion. The cylindrical stem portion has an outer circumference on which the winding coil 62A is wound. A first flange portion and a second flange portion are formed on both axial end portions of the cylindrical stem portion.

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 positioned 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.

Here, the circuit board 44 is positioned adjacent to the stator 62 in the axial direction relative to the rotational center axis A1 at the second axial stator end 68B of the stator 62 . The wires W1 and W2 are connected to the circuit board 44 . In particular, the circuit board 44 has a first axially facing surface 44e facing the stator 62 and a second axially facing surface 44f facing away from the stator 62 . Here, the wires W1 and W2 are electrically connected to the second axially facing surface 44f of the circuit board 44 .

The armature of the stator 62 further includes a plurality of first yokes 62C and a plurality of second yokes 62D. The first yoke 62C is arranged along the circumferential direction of the hub axle 12 . Likewise, the second yoke 62D is arranged along the circumferential direction of the hub axle 12 and is staggered with the first yoke 62C. The winding coil 62A is located between the first yoke 62C and the second yoke 62D in the axial direction of the hub axle 12 . Here, the first yoke 62C and the second yoke 62D are fitted to the grooves of the bobbin 62B, so that the first yoke 62C and the second yoke 62D are staggered in a circumferential direction around the rotation center axis A1. The first yoke 62C and the second yoke 62D may be attached to the spool 62B by, for example, an adhesive.

Each of the first yokes 62C may be a laminated yoke consisting of a plurality of laminated pieces or may be a single piece. In the case of the laminated yoke, the laminated members of the first yoke 62C are laminated together in the circumferential direction around the rotation center axis A1. The laminate of the first yoke 62C is made of, for example, a silicon steel plate (more specifically, a non-oriented silicon steel plate) on which an oxide film is formed. The laminate of the first yoke 62C is an example of a plate-like member.

Likewise, the second yoke 62D may be a laminated yoke constructed from a plurality of laminated pieces or may be a single piece. In the case of the laminated yoke, the laminated members of the second yoke 62D are laminated together in the circumferential direction around the rotation center axis A1. The laminate of the second yoke 62D is made of, for example, a silicon steel plate (more specifically, a non-oriented silicon steel plate) on which an oxide film is formed. The laminate of the second yoke 62D is an example of a plate-like member.

The rotor 64 contains at least one magnet. Here, in the illustrated embodiment, the rotor 64 includes a plurality of first magnet members 64A and a plurality of second magnet members 64B disposed inside a tubular support 64C. The tubular support 64C is securely coupled to the interior of the hub body 14 such that the magnets (rotor 64 ) rotate with the hub body 14 about the hub axle 12 . The tubular support 64C functions as a back yoke. The back yoke is a member having a high permeability disposed on the opposite side of the magnetized surface. By using the back yoke, a high generated magnetic field can be obtained. The tubular support 64C may be omitted. Alternatively, the hub body 14 may have magnets (rotor 64 ) such that the hub body 14 partially forms the power generator 60 . The first magnet part 64A and the second magnet part 64B are arranged such that the S poles and the N poles of the first magnet part 64A and the second magnet part 64B are arranged staggered in the circumferential direction of the hub axle 12 . Therefore, in the axial direction of the hub axle 12, the S pole of the first magnet part 64A is not aligned with the S pole of the second magnet part 64B, and the N pole of the first magnet part 64A is not aligned with the N pole of the second magnet part 64B Extremely aligned.

As mentioned above, the wound coil 62A is illustrated as being fixed relative to the hub axle 12 , and the magnet (rotor 64 ) is illustrated as being fixed relative to the hub body 14 . Alternatively, the wound 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 .

As seen in FIGS. 6 , 9 and 10 , the wires W1 and W2 are electrically connected to the stator 62 at the first axial stator end 68A of the stator 62 . Wires W1 and W2 extend axially through the armature of 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 . Accordingly, the wires W1 and W2 extend axially through the stator 62 at a point radially outward from the wound coil 62A.

The hub assembly 10 further includes two fixing plates 76 and 78 disposed on the hub axle 12 for non-rotatably coupling the stator 62 of the power generator 60 to the hub axle 12 . The fixing plates 76 and 78 are disposed on opposite axial ends of the power generator 60 . The fixing plates 76 and 78 have a plate 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 seated in the groove 12d of the hub axle 12 . Likewise, one of the protrusions 78a of the fixing plate 78 is seated in the groove 12d of the hub axle 12 . The other of the protrusions 76a and 78a are seated in the other two axially extending grooves 12e of the hub axle 12 . By inserting the protrusions 76 a and 78 a into these grooves 12 d and 12 e of the hub axle 12 , the fixing plates 76 and 78 do not rotate relative to the hub axle 12 . The stator 62 of the power generator 60 is positioned relative to the hub axle 12 by engagement of the stator 62 with a protrusion 76b protruding from an axially facing surface of the fixing plate 76 and a protrusion 78b protruding from an axially facing surface of the fixing plate 78 Do not rotate. The fixing plates 76 and 78 are configured 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, rotation of the fixing plates 76 and 78 relative to the hub axle 12 may also be inhibited by providing a D-shaped cut that mates with a corresponding outer surface of the hub axle 12 . One of the pair of fixing plates 76 and 78 may be omitted as appropriate.

Additionally, the housing 42 may be non-rotatably coupled to one of the stationary plates 76 and 78 to inhibit rotation of the housing 42 relative to the hub axle 12 . For example, the keying protrusion 42d of the housing 42 is configured to engage the opening 78c of the fixing plate 78 keyed to the groove 12d of the hub axle 12 . The fixing plate 78 includes a plurality of openings 78c corresponding to the keying protrusions 42d. In this manner, the housing 42 is prevented from rotating relative to the hub axle 12 . Alternatively, the housing 42 may be attached to the bearing spacer 28 that is non-rotatably coupled to the hub axle 12 . A nut 80 is screwed onto the hub axle 12 to hold the stator 62 and the housing 42 on the hub axle 12 .

In understanding the scope of the invention, as used herein, the term "comprising" and its derivatives are intended to represent open-ended terms that specify the presence of a stated feature, element, component, group, integer and/or step, but The presence of other unrecited features, elements, components, groups, integers and/or steps is not excluded. The above also applies to words of similar meaning, such as the terms "comprising", "having" and their derivatives. Furthermore, the terms "part," "section," "portion," "member" or "element" when used in the singular can have the dual meaning of a single part or a plurality of parts unless stated otherwise.

As used herein, the following directional terms "frame facing side", "non-frame facing side", "forward", "rearward", "front", "rear", "upper", " bottom, top, bottom, up, down, top, bottom, side, vertical, horizontal, vertical and horizontal and any Other similar directional terms refer to those orientations of a human-powered vehicle (eg, a bicycle) in an upright riding position and equipped with the hub assembly. Accordingly, when used to describe the hub, these directional terms should be interpreted relative to a human-powered vehicle (eg, a bicycle) equipped with the hub assembly in an upright riding position on a horizontal surface. The terms "left" and "right" are used to indicate "right" when referring to the right side as viewed from behind a man-powered vehicle (eg, bicycle), and "left" when referring to the left side as viewed from behind a man-powered vehicle (eg, bicycle) .

As used in this disclosure, the phrase "at least one of" means "one or more" of a desired selection. As an example, as used in this disclosure, if the number of choices is two, the phrase "at least one of" means its "only a single choice" or "both choices." As another example, as used in this disclosure, if the number of choices is equal to or more than three, the phrase "at least one of" means that it is "only a single choice" or "equal to or more than two" any combination of your choice". Also, as used in this disclosure, the term "and/or" means "either or both of".

Furthermore, it will 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, a first component discussed above could be termed a second component, and vice versa, without departing from the teachings of the present invention.

As used herein, the terms "attached" or "attaching" encompass groups in which an element is directly fastened to another element by securing the element directly to the other element state; a configuration in which the element is indirectly fastened to the other element by fixing the element to an intermediate member and the intermediate member(s) is in turn fastened to the other element; and one of the elements and the other element A configuration in which one element is essentially a component of another element. This definition also applies to words of similar meaning, such as "coupled", "connected", "coupled", "mounted", "engaged", "fixed" and derivatives thereof. Finally, terms of degree such as "substantially," "about," and "approximately," as used herein, mean an amount of deviation of the modified term such that the end result is not significantly altered.

Although only selected embodiments have been chosen to illustrate the invention, it will be apparent to those skilled in the art from the invention that various changes and modifications can be made herein without departing from the invention as defined in the appended claims category. For example, unless specifically stated otherwise, the size, shape, location or orientation of the various components may be changed as needed and/or desired so long as such changes do not materially affect their intended function. Unless specifically stated otherwise, components shown directly connected or in contact with each other may have intervening structures disposed therebetween, so long as such changes do not materially affect their intended function. The functions of one element may be performed by two elements and vice versa, unless specifically stated otherwise. The structures and functions of one embodiment can be adopted in another embodiment. It is not necessary for all advantages to exist simultaneously in a particular embodiment. Each feature that differs from the prior art, alone or in combination with other features, should also be considered as a separate description of a further invention by the applicant, including the structural and/or functional concepts embodied by such feature(s). Accordingly, the foregoing descriptions of embodiments in accordance with the present invention are provided for illustration purposes only and not for the purpose of limiting the invention as defined by the scope of the appended claims and their equivalents.

5-5: Section Line 10: Wheel hub assembly 12: Wheel hub axle 12a: first axial end 12b: Second axial end 12c: Axial boring 12d: Axially extending recess/groove 14: hub body 14a: First outer flange 14b: Second outer flange 16: First end piece/first end cap 18: Second end piece/second end cap/end cap 18a: Opening 20: fixing bolts 21: Rotation limit part 21a: Cable guide structure 21b: groove 21c: Recess 21d: Recess 22: Wheel holding mechanism 22a: Shaft/String 22b: Cam body 22c: Cam lever 22d: Adjusting nut 24: The first hub body bearing 24a: First inner race 24b: First outer race 24c: First roller element 26: Second hub body bearing 26a: Second inner race 26b: Second outer race 26c: Second roller element 28: Bearing spacer 28a: inner peripheral end 28a1: non-circular opening 28b: Outer peripheral end 28c: Axial opening 30: Sprocket support structure 30a: First end 30b: second end 32: First sprocket support bearing 32a: First inner race 32b: First outer race 32c: first roller element 34: Second sprocket support bearing 34a: Second inner race 34b: Second outer race 34c: Second roller element 35: Tubular Spacer Elements 36: Electric assembly 38: Electrical Components 38a: Opening 40: Cable 40a: First end 40b: second end 40c: Intermediate section 40d: Part 1 40e: Part II 41: Cable protector 41a: first end 41b: second end 41c: Cable restriction section 41d: First leg part/leg part 41e: Second leg part/leg part 42: Shell 42a: first surface 42b: Second surface 42c: Internal space 42d: keying protrusion 43: Spacer 44: Circuit boards/electronic circuit boards 44a: First Circumferential End Section 44b: Second Circumferential End Section 44c: Inner curved edge 44d: Outer Arc Edge 44e: First axial facing surface 44f: Second axial facing surface 45: Shell body 46: Cover 47: Threaded fasteners 48: Electronic controller 50: Detected parts 52: Rotation detection sensor 54: Capacitor 56A: first conductor 56B: Second conductor 58: One-way clutch 58A: Pawl 58B: Biasing element 58C: Ratchet teeth 58D: Retaining ring 58E: Sealing member 60: Power Generator 62: Stator 62A: Winding Coil 62B: Winding tube 62C: First Yoke 62D: Second Yoke 64: Rotor 64A: First magnet assembly 64B: Second magnet part 64C: Tubular Support 68A: First axial stator end 68B: Second axial stator end 76: Fixed plate 76a: Protrusion 76b: Protrusion 78: Fixed plate 78a: Protrusion 78b: Protrusion 78c: Opening 80: Nut A1: Rotation center axis ASP: Height Adjustable Seatpost B1: central axis BP: Primary battery pack/battery pack C: crank C1: longitudinal axis CA1: crank axle CA2: Crank Arm EN:chain CS: Rear sprocket D1: Drive rotation direction D2: Non-driven rotation direction DT: drive train DU: Electric Drive Unit EC1: first electrical connector EC2: Second electrical connector FB: Front frame body FF: Front fork FS: Front sprocket FW: Front Wheel H: handlebar P1: Pivot PD: pedal RB: rear frame body RD: rear derailleur RP: reference plane RS: Rear shock absorber RW: rear wheel S: Bike seat/saddle SC: Bike Computer SL: Shifter/Shifter V: human vehicle VB: Vehicle body W1: Wire W2: Wire W4: Wire

Reference is now made to the accompanying drawings which formed part of the original invention:

1 is a side elevational view of a human-powered vehicle (ie, a bicycle) equipped with a wheel hub assembly (ie, a bicycle wheel hub assembly) according to a first embodiment;

Figure 2 is a longitudinal elevation view of a hub assembly attached to the vehicle body of the human powered vehicle illustrated in Figure 1;

Figure 3 is a perspective view of the hub assembly illustrated in Figure 1;

Figure 4 is a perspective view of the hub assembly illustrated in Figures 2 and 3 but with optional components removed to show the bearing spacer;

Figure 5 is a longitudinal cross-sectional view of the hub assembly illustrated in Figures 2-4, as seen along line 5-5 in Figure 3;

6 is an enlarged cross-sectional view of a first portion of a hub assembly illustrated in FIG. 5;

Figure 7 is an enlarged cross-sectional view of a second portion of a hub assembly illustrated in Figure 5;

Figure 8 is a perspective view of the hub assembly illustrated in Figures 2-5 with selected portions of the hub broken away;

Figure 9 is an end elevation view of the hub assembly illustrated in Figures 2-5 with selected components of the hub removed;

Figure 10 is a partially exploded perspective view of the electrical assembly of the hub assembly illustrated in Figures 2-5;

11 is a partial side elevational view of an end portion of the hub assembly illustrated in FIGS. 2-5 with the cable protector in a second (restricted) position with respect to the hub assembly the central axis of rotation is at least partially confined in an angled position;

Figure 12 is a longitudinal cross-sectional view of the end portion illustrated in Figure 11 with the cable protector in the second (restricted) position;

Figure 13 is a partial side elevational view of the end portion illustrated in Figures 11 and 12 but with the cable protector in a first (non-restrictive) position in which the cables are parallel Move freely on the axis of rotation of the hub assembly;

Figure 14 is a longitudinal cross-sectional view of the end portion illustrated in Figures 11-13 with the cable protector in a first (non-limiting) position;

Figure 15 is a perspective view of the end portion illustrated in Figures 11-14, but with the cable protector in a first (non-limiting) position;

Figure 16 is a partial end elevation view of the end portion illustrated in Figures 11-15 with the cable protector in a first (non-limiting) position;

Figure 17 is a perspective view of the end portion illustrated in Figures 11-16, but with the cable protector in the second (restricted) position;

Figure 18 is a partial end elevation view of the end portion illustrated in Figures 11-17 with the cable protector in the second (restricted) position;

19 is a partial top view of the end portion illustrated in FIGS. 11-18 with the cable at least partially confined relative to the center axis of rotation of the hub assembly with the cable protector in the second (restricted) position in an angled position;

Figure 20 is an enlarged end elevation view of the end cap of the hub assembly illustrated in Figures 2-5 with the cable protector in the first (non-limiting) position;

Figure 21 is an enlarged top view of the end cap illustrated in Figure 20 with the cable protector in a first (non-limiting) position;

Figure 22 is a longitudinal cross-sectional view of the end cap illustrated in Figures 20 and 21 with the cable protector in a first (non-limiting) position;

Figure 23 is an enlarged end elevation view of the end cap illustrated in Figures 20-22, but with the cable protector in the second (restricted) position;

Figure 24 is an enlarged top view of the end cap illustrated in Figures 20-23 with the cable protector in the second (restricted) position;

Figure 25 is an enlarged perspective view of the end cap illustrated in Figures 20-24 with the cable protector in the second (restricted) position; and

Figure 26 is an enlarged perspective view of the end cap illustrated in Figures 20-25 with the cable protector detached from the end cap.

18: Second end piece/second end cap/end cap

18a: Opening

21: Rotation limit part

21a: Cable guide structure

21b: groove

21d: Recess

30: Sprocket support structure

30b: second end

40: Cable

40e: Part II

41: Cable protector

41b: second end

41c: Cable restriction section

Claims (20)

A wheel hub assembly for a human-powered vehicle, the wheel hub assembly comprising: a hub axle, which has a first axial end and a second axial end; a hub body rotatably mounted on the hub axle to rotate about a central axis of rotation 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 disposed relative to the hub axle between a first position and a second position, with the cable protector in the first position, the second portion of the cable Extending along the central axis of rotation, and with the cable protector in the second position, the second portion of the cable is at least partially constrained in an angled position relative to the central axis of rotation. Such as the wheel hub assembly of claim 1, wherein The cable protector is pivotally mounted relative to the hub axle between the first position and the second position. Such as the wheel hub assembly of claim 2, wherein The cable protector has a pivot axis extending in a twisted or intersecting relationship relative to the central axis of rotation of the hub body. Such as the wheel hub assembly of claim 1, wherein The cable protector is a wire rod. Such as the wheel hub assembly of claim 1, wherein The first portion of the cable extends at least partially along the central axis of rotation. Such as the wheel hub assembly of claim 4, wherein In one case where a reference plane completely includes the rotation center axis and is perpendicular to a pivot axis of the cable protector, the bar has a first end disposed on a first side of the reference plane and disposed a second end on a second side of the reference plane. As claimed in the wheel hub assembly of item 1, it further includes A rotation limiting member configured to be positioned between the hub axle and a frame of the human-powered vehicle such that rotation of the hub axle relative to the frame is restricted. Such as the wheel hub assembly of claim 7, wherein The rotation limiting member is detachably attached to the hub axle. Such as the wheel hub assembly of claim 7, wherein The rotation limiting member includes a cable guiding structure configured to guide the second portion of the cable in an angular direction relative to the central axis of rotation. Such as the wheel hub assembly of claim 9, wherein The cable guide structure is further configured to guide the cable in a radial direction of the hub axle. Such as the wheel hub assembly of claim 9, wherein The cable guide structure includes a groove configured to guide the cable. Such as the wheel hub assembly of claim 11, wherein The cable protector is attached inside the groove of the cable guide structure. Such as the wheel hub assembly of claim 11, wherein The cable protector includes a cable restraint that is wider than a width of the cable. Such as the wheel hub assembly of claim 7, wherein The rotation restricting member includes a recess, and With the cable protector in the second position, the cable protector is releasably retained in the recess. Such as the wheel hub assembly of claim 14, wherein The cable protector elastically deforms as the cable protector moves into and out of the recess. As claimed in the wheel hub assembly of item 1, it further includes an electrical component non-rotatably positioned relative to the hub axle, and wherein The cable is electrically connected to one of the electrical components. Such as the wheel hub assembly of claim 16, wherein The electrical component includes a circuit board, and The cable is electrically connected to the circuit board. As claimed in the wheel hub assembly of item 1, it further includes An electrical power generator disposed to the hub body and configured to generate electrical power by rotation of the hub body. As claimed in the wheel hub assembly of item 1, it further includes A sprocket support structure rotatably disposed about the rotation center axis to transmit a driving force to the hub body while rotating in a driving rotation direction about the rotation center axis. A wheel hub assembly for a human-powered vehicle, the wheel hub assembly comprising: a hub axle, which has a first axial end and a second axial end; a hub body rotatably mounted on the hub axle to rotate about a central axis of rotation 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 tied to a wire rod and positioned on the hub axle and with the second portion of the cable being at least partially confined in an angled position relative to the central axis of rotation.

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