TW202229105A - Hub for human-powered vehicle - Google Patents

Abstract

A hub is provided for a human-powered vehicle. The hub comprises a hub axle, a hub body, a sprocket support structure, a detected part and a rotation detection sensor. The hub axle has a center axis. The hub body is rotatably disposed around the center axis. The sprocket support structure is rotatably disposed around the center axis to transmit a driving force to the hub body while rotating in a driving rotational direction around the center axis. The detected part is provided to the sprocket support structure. The rotation detection sensor is configured to detect the detected part to detect rotation of the sprocket support structure around the center axis and being disposed in the hub body.

Description

Wheel hubs for man-powered vehicles

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

Some wheels of human-powered vehicles (eg, bicycles) have a hub that rotatably supports a wheel. For example, a hub includes a hub axle and a hub body rotatably disposed about the hub axle. The hub axle is non-rotatably mounted to a frame of the human-powered vehicle. The hub body is coaxially coupled to the hub axle such that the hub body is positioned radially outwardly relative to the hub axle. The hub body is coupled to a rim supporting a tire. In some cases, the hub is provided with an electric power generating device to generate electric power according to the driving of the human-powered vehicle.

In general, the present invention is directed to various features of a wheel hub 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 for driving 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, as well as an electric assisted bike (E-bike).

In view of the currently known advanced technology and according to a first aspect of the present invention, there is provided a hub for a human-powered vehicle, which basically includes a hub axle, a hub body, a sprocket support structure, a detected component and a rotation detection sensor. The hub axle has a central axis. The hub body is rotatably positioned about the central axis. The sprocket support structure is rotatably disposed about the central axis to transmit a driving force to the hub body while rotating in a driving rotational direction about the central axis. The detected component is disposed to the sprocket support structure. The rotation detection sensor is configured to detect the detected component in order to detect rotation of the sprocket support structure about the central axis and is disposed in the hub body.

With the hub according to the first aspect, it is possible to reliably detect the rotation of the sprocket support structure.

According to a second aspect of the present invention, the hub according to the first aspect is configured such that the rotation detection sensor includes a magnetic sensor, and the detected component includes a magnet.

In the case of the hub according to the second aspect, inexpensive detection of the rotation of the sprocket support structure is possible. In addition, the magnetic sensor saves space and has perfect environmental resistance.

According to a third aspect of the present invention, the hub according to the second aspect further includes a coupling body coupled to the hub body and disposed between the magnetic sensor and the detected component , the coupling body is at least partially made of a non-magnetic material or has an opening.

In the case of the hub according to the third aspect, the magnetic sensor is protected from foreign objects such as dust, sand or the like.

According to a fourth aspect of the present invention, the hub according to the first aspect is configured such that the rotation detection sensor includes an optical sensor, and the detected component includes a reflective member.

In the case of the hub according to the fourth aspect, it is possible to accurately detect the rotation of the sprocket support structure.

According to a fifth aspect of the present invention, the hub according to the fourth aspect further includes a coupling body coupled to the hub body and disposed between the optical sensor and the detected component , the coupling body is at least partially made of a transparent material or has an opening.

In the case of the hub according to the fifth aspect, the optical sensor is protected from foreign objects such as dust, sand or the like.

According to a sixth aspect of the present invention, the hub according to the first aspect is configured such that the sprocket support structure includes an outer body configured to support at least one sprocket and coupled to the hub body to follow therewith An inner body rotates, and the outer body is coupled to the inner body for common rotation about the central axis in the driving rotational direction, and is configured to rotate relative to the inner body in a non-driving rotational direction about the central axis .

In the case of the hub according to the sixth aspect, the sprocket support structure acts as a freewheel to allow the sprocket support structure to stop rotating during idling.

According to a seventh aspect of the present invention, the hub according to the sixth aspect further includes a coupling body coupled to the hub body and the inner body, and disposed between the rotation detection sensor and the inner body between the detected components.

In the case of the hub according to the seventh aspect, the rotation detection sensor is protected from foreign objects such as dust, sand, or the like.

According to an eighth aspect of the present invention, the hub according to any one of the first to seventh aspects is configured such that a circuit board is disposed in the hub body, and the rotation detection sensor is disposed in the hub body on the circuit board.

In the case of the hub according to the eighth aspect, the rotation detection sensor can be conveniently provided in the hub body.

According to a ninth aspect of the present invention, the hub according to the eighth aspect further includes an electronic controller disposed on the circuit board and configured to receive a detection from the rotation detection sensor measurement signal.

In the case of the hub according to the ninth aspect, the detection result of the rotation detection sensor can be used to control other components.

According to a tenth aspect of the present invention, the hub according to any one of the first to ninth aspects further includes an electrical component disposed in the hub body in a radial direction with respect to the central axis between the hub axle and the hub body.

In the case of the hub according to the tenth aspect, the hub can be used to house an electrical component in the hub body.

According to an eleventh aspect of the present invention, the hub according to the tenth aspect is configured such that the electrical component includes the rotation detection sensor.

With the hub according to the eleventh aspect, it is possible to detect the rotation of the sprocket support structure.

According to a twelfth aspect of the present invention, the hub according to the tenth or eleventh aspect further includes a cable electrically connected to the electrical component and passing axially between the sprocket support structure and the hub axle a space between.

With the hub according to the twelfth aspect, the cable can be electrically connected to the electrical component without interfering with the rotation of the sprocket support structure or the hub body.

According to a thirteenth aspect of the present invention, the hub according to the twelfth aspect is configured such that the hub axle includes a groove, and the cable is received in the groove.

With the hub according to the thirteenth aspect, it is possible to easily route the cable along the hub axle.

According to a fourteenth aspect of the present invention, the hub according to any one of the tenth to thirteenth aspects further includes a power generator disposed in the hub body and configured to thereby Electricity is generated by the rotation of the hub body. The electrical component is electrically connected to the power generator.

In the case of the hub according to the fourteenth aspect, it is possible to generate electricity by the rotation of the hub body and to supply electricity to the electrical components.

According to a fifteenth aspect of the present invention, the hub according to any one of the first to ninth aspects further includes a power generator disposed in the hub body and configured to thereby Electricity is generated by the rotation of the hub body.

In the case of the hub according to the fifteenth aspect, it is possible to generate electric power by the rotation of the hub body.

According to a sixteenth aspect of the present invention, the hub according to the fifteenth aspect further comprises a cable electrically connected to the power generator and passing axially through the gap between the sprocket support structure and the hub axle a space.

With the hub according to the sixteenth aspect, the cable can be electrically connected to the electrical component without interfering with the rotation of the sprocket support structure or the hub body.

According to a seventeenth aspect of the present invention, the hub according to the fifteenth aspect is configured such that the hub axle includes a groove, and the cable is received in the groove.

With the hub according to the seventeenth aspect, it is possible to easily route the cable along the hub axle.

According to an eighteenth aspect of the present invention, there is provided a hub for a human-powered vehicle, which basically includes a hub axle, a hub body, a coupling body, a sprocket support structure, and a fixing member. The hub axle has a central axis. The hub body is rotatably positioned about the central axis. The coupling body includes: an outer peripheral portion coupled to the hub body; and an inner peripheral portion positioned radially inward from the outer peripheral portion with respect to a radial direction of the central axis. The sprocket support structure is rotatably disposed about the central axis to transmit a driving force to the hub body. The sprocket supporting structure includes an outer body and an inner body. The outer body is configured to support at least one sprocket. The inner body is coupled to the hub body via the coupling body for rotation therewith. The outer body is coupled to the inner body for common rotation about the central axis in a drive rotational direction. The outer body is configured to rotate relative to the inner body in a non-driven rotational direction about the central axis. The fixing member is attached to the inner peripheral portion of the coupling body and the inner body is attached to the coupling body.

With the hub according to the eighteenth aspect, the hub body can be reliably coupled to the inner body of the sprocket support structure via a coupling body such that the sprocket support structure acts as a freewheel to allow the sprocket The support structure stops rotating during idle.

According to a nineteenth aspect of the present invention, the hub according to the eighteenth aspect is configured such that the securing member is a tubular member having a first end portion adjacent the inner body and coupled to the inner body A second end portion of the inner peripheral portion of the coupling body is coupled.

In the case of the hub according to the nineteenth aspect, the inner body can be reliably coupled to the coupling body by the fixing member around the hub axle.

According to a twentieth aspect of the present invention, the hub according to the eighteenth or nineteenth aspect is configured such that the inner peripheral portion of the coupling body is threadedly connected to the fixing member.

In the case of the hub according to the twentieth aspect, the fixing member may be screwed to the coupling body to attach the inner body to the coupling body.

According to a twenty-first aspect of the present invention, the hub according to any one of the eighteenth to twentieth aspects is configured such that the outer peripheral portion of the coupling body includes a keyway and a groove At least one of them is a first coupling structure. The hub body includes a second coupling structure having at least one of a keyway and a groove. The first coupling structure cooperates with the second coupling structure to non-rotatably couple the coupling body to the hub body.

In the case of the hub according to the twenty-first aspect, the coupling body can be non-rotatably coupled to the hub body in a relatively simple configuration.

According to a twenty-second aspect of the present invention, the hub according to any one of the eighteenth to twenty-first aspects is configured such that the inner body includes at least one of a keyway and a groove a third coupling structure. The coupling body includes a fourth coupling structure having at least one of a keyway and a groove. The third coupling structure cooperates with the fourth coupling structure to non-rotatably couple the inner body to the coupling body.

In the case of the hub according to the twenty-second aspect, the inner body can be non-rotatably coupled to the coupling body in a relatively simple configuration.

According to a twenty-third aspect of the present invention, the hub according to any one of the eighteenth to twenty-second aspects further includes a retainer removably coupled to the hub body And the coupling body is fixed to the hub body.

In the case of the hub according to the twenty-third aspect, the coupling body may be uncoupled to the hub body in a removable manner for servicing the hub.

According to a twenty-fourth aspect of the present invention, the hub according to any one of the eighteenth to twenty-third aspects is configured such that the inner body is axially retained between the coupling body and the fixing member between one of the contact surfaces.

In the case of the hub according to the twenty-fourth aspect, the inner body is prevented from moving axially relative to the coupling body by the fixing member.

According to a twenty-fifth aspect of the present invention, the hub according to any one of the eighteenth to twenty-fourth aspects is configured such that the securing member has a tool engaging portion.

In the case of the hub according to the twenty-fifth aspect, the fixing member can be easily installed.

According to a twenty-sixth aspect of the present invention, the hub according to the twenty-fifth aspect is configured such that the securing member has an annular inner surface that includes the tool engaging portion.

In the case of the hub according to the twenty-sixth aspect, an axial dimension of the hub is not increased by providing the tool engaging portion on the annular inner surface of the fixing member.

According to a twenty-seventh aspect of the present invention, the hub according to any one of the eighteenth to twenty-sixth aspects further includes: an electrical component disposed in the radial direction with respect to the central axis The hub body is between the hub axle and the hub body; and a cable electrically connected to the electrical assembly and passing axially through a space between the fixing member and the hub axle.

With the hub according to the twenty-seventh aspect, the hub can be used to house an electrical component in the hub body, and the electrical component can be electrically connected to the cable without interfering with the sprocket support structure or the hub The rotation of the subject.

According to a twenty-eighth aspect of the present invention, the hub according to the twenty-seventh aspect is configured such that the hub axle includes a groove, and the cable is received in the groove.

With the hub according to the twenty-eighth aspect, it is possible to easily route the cable along the hub axle.

According to a twenty-ninth aspect of the present invention, the hub according to the twenty-seventh or twenty-eighth aspect further includes a power generator disposed in the hub body and configured to be generated by The rotation of the hub body generates electricity. The electrical component is electrically connected to the power generator.

With the hub according to the twenty-ninth aspect, it is possible to generate electricity by the rotation of the hub body and to supply electricity to the electrical components.

According to a thirtieth aspect of the present invention, the hub according to any one of the eighteenth to twenty-sixth aspects further includes a power generator disposed in the hub body and configured To generate electricity by the rotation of the hub body.

In the case of the hub according to the thirtieth aspect, it is possible to generate electric power by the rotation of the hub body.

According to a thirty-first aspect of the present invention, the hub according to the thirtieth aspect further includes a cable electrically connected to the power generator and passing axially through a gap between the fixing member and the hub axle space.

With the hub according to the thirty-first aspect, the cable can be electrically connected to the power generator without interfering with the rotation of the sprocket support structure or the hub body.

According to a thirty-second aspect of the present invention, the hub according to the thirty-first aspect is configured such that the hub axle includes a groove, and the cable is received in the groove.

With the hub according to the thirty-second aspect, it is possible to easily route the cable along the hub axle.

Furthermore, other objects, features, aspects and advantages of the disclosed assembly will become apparent to those skilled in the art from the following detailed description of the preferred embodiments of the disclosed hub 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 10 is provided for a man-powered vehicle V according to one illustrated embodiment. Here, in the illustrated embodiment, the wheel hub 10 is provided to the human-powered vehicle V for providing electrical power to a hub generator of one or more components of the human-powered vehicle V. However, the hub 10 is not limited to a hub generator. In particular, some aspects of the hub 10 may be configured to be a hub that does not generate electrical power. Also, although the hub 10 is illustrated as a rear hub, some aspects of the hub 10 may be provided to a front hub. Therefore, the hub 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. The number of wheels on the human-powered vehicle V is not limited. For example, the human-powered vehicle V includes a unicycle and a vehicle having three or more wheels. Here, the human-powered vehicle V is a bicycle that uses human power at least in part as a driving power for traveling and includes an electric drive unit that assists the human power. Specifically, a vehicle that only uses an internal combustion engine as a driving force is not included in the human-powered vehicle of the present invention. In either case, in the illustrated embodiment, the hub 10 is an example of a bicycle component .

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 drive train including 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 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 10 during a power producing state, as discussed herein.

The structure of the hub 10 will now be described with specific reference to FIGS. 2 to 5 . The hub 10 basically includes a hub axle 12 and a hub body 14 . The hub axle 12 has a central axis A1. The hub axle 12 is configured to be non-rotatably attached to the vehicle body VB. The hub axle 12 is configured to be non-rotatably attached to the rear frame body RB. The hub body 14 is rotatably positioned about the central axis A1. In other words, the hub body 14 is rotatably mounted about the hub axle 12 .

As seen in Figures 2-4, the hub axle 12 is a rigid member made of a suitable material, such as a metallic material. Here, the hub axle 12 is a tubular member. The hub axle 12 may be a one-piece member or be made from several pieces. Here, the hub axle 12 includes a main body 12a and an end piece 12b. The end piece 12b is threadedly mounted to a first end of the main body 12a (right side in FIGS. 2-4). In this way, the second end of the main body 12a (left side in FIGS. 2-4 ) and the end piece 12b are received in the mounting opening of the rear frame body RB, as seen in FIG. 2 . The second end of the main body 12a and the end piece 12b are received in the mounting opening of the vehicle body VB. Here, the hub axle 12 further includes a rotation limiting member 12c coupled to the main body 12a by an end piece 12b. The rotation restricting member 12c engages the vehicle body VB. The rotation restricting member 12c engages the rear frame main body RB so that the rotation of the hub axle 12 relative to the rear frame main body RB is restricted.

Here, as seen in FIG. 2 , the hub 10 further includes a wheel retaining mechanism 16 for securing the hub axle 12 of the hub 10 to one of the rear frame body RB. The wheel holding mechanism 16 basically includes a shaft member or string rod 16a, a cam body 16b, a cam lever 16c and an adjusting nut 16d. The cam lever 16c is attached to one end of the string rod 16a via the cam body 16b, and the adjusting nut 16d is screwed on the other end of the string rod 16a. The lever 16c is attached to the cam body 16b. The cam body 16b is coupled between the string rod 16a and the lever 16c to move the string rod 16a relative to the cam body 16b. Therefore, the lever 16c is operated to move the string rod 16a relative to the cam body 16b in the axial direction of the center axis A1 so as to change the distance between the cam body 16b and the adjusting nut 16d. Preferably, a compression spring is provided at each end of the string 16a. 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 and 5 , 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 with respect to the central 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 and the rear wheel RW are coupled for common rotation about the central axis A1.

Here, the hub 10 further includes a sprocket support structure 18. In the illustrated embodiment, the sprocket support structure 18 supports the rear sprocket CS, as seen in FIG. 2 . The sprocket support structure 18 is rotatably disposed about the central axis A1 to transmit a driving force to the hub body 14 . Specifically, the sprocket support structure 18 transmits a driving force to the hub body 14 while rotating in the driving rotational direction D1 about the central axis A1. As explained below, the sprocket support structure 18 does not transmit a driving force to the hub body 14 while rotating in a non-driving rotational direction D2 about the central axis A1. The non-driving rotational direction D2 is opposite to the driving rotational direction D1 with respect to the central axis A1. The central axis of rotation of the sprocket support structure 18 is positioned concentrically with the central axis A1 of the hub axle 12 .

Although the sprocket support structure 18 is configured to non-rotatably support the rear sprocket CS, the sprocket support structure 18 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 18 . In either case, the sprocket support structure 18 and the rear sprocket CS are coupled together for common rotation in both the first rotational direction Dl and the second rotational direction D2.

As seen in FIGS. 4 and 5 , the hub 10 further includes an electrical assembly 20 disposed in the hub body 14 in a radial direction relative to the central axis A1 between the hub axle 12 and the hub body 14 . Here, the electrical assembly 20 is arranged in an electrical unit EU that is not rotatable relative to the hub axle 12 . Accordingly, the electrical assembly 20 remains stationary as the hub body 14 rotates relative to the hub axle 12 . The hub 10 further includes a cable 22 that is electrically connected to the electrical assembly 20 . The cable 22 passes axially through a space between the sprocket support structure 18 and the hub axle 12 . Specifically, in the illustrated embodiment, the hub axle 12 includes a groove 12d. In this way, the cable 22 is accommodated in the groove 12d. A cable 22 extends from the hub 10 and 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 connector. As explained later, the cable 22 may provide power generated by the hub 10 to the rear derailleur RD, the battery pack BP, or another electrical component.

As seen in FIG. 4 , the hub 10 further includes a power generator 24 disposed in the hub body 14 . More specifically, the power generator 24 is disposed in the hub body 14 between the hub axle 12 and a central portion of the hub body 14 . The power generator 24 is configured to generate power by rotation of the hub body 14 . The electrical assembly 20 is electrically connected to the power generator 24 . The hub 10 further includes a cable 26 that is electrically connected to the power generator 24 . Cable 26 is also electrically connected to electrical component 20 . In this manner, the electrical cables 26 electrically connect the electrical components 20 to the power generator 24 such that the electrical components 20 can receive power from the power generators 24 . The cable 26 is also electrically connected to the cable 22 which passes axially through a space between the sprocket support structure 18 and the hub axle 12 .

The power generator 24 basically includes an armature 28 (ie, in the illustrated embodiment, a stator) and a magnet 30 (ie, in the illustrated embodiment, a rotor). While the armature 28 is illustrated fixed relative to the hub axle 12 and the magnets 30 are illustrated fixed relative to the hub body 14 , the armature 28 may be fixed relative to the hub body 14 and the magnets 30 may be fixed relative to the hub axle 12 . The armature 28 includes a first yoke 28A, a second yoke 28B and a coil 28C. The first yoke 28A includes two or more first yokes arranged in the circumferential direction of the hub axle 12 . Likewise, the second yoke 28B includes two or more second yokes arranged in the circumferential direction of the hub axle 12 and staggered with the first yokes of the first yoke 28A. The coil 28C is located between the first yoke 28A and the second yoke 28B. The magnet 30 includes a plurality of first magnet parts 30A and a plurality of second magnet parts 30B disposed inside a tubular support 32 . The tubular support 32 is securely coupled to the interior of the hub body 14 such that the magnets 30 rotate with the hub body 14 about the hub axle 12 . The first magnet part 30A and the second magnet part 30B are arranged such that the S poles and the N poles of the first magnet part 30A and the second magnet part 30B are arranged alternately in the circumferential direction of the hub axle 12 . Therefore, along the axial direction of the shaft member 12, the S pole of the first magnet part 30A is not aligned with the S pole of the second magnet part 30B, and the N pole of the first magnet part 30A is not aligned with the S pole of the second magnet part 30B N pole alignment.

In the illustrated embodiment, the hub 10 further includes a detected component 36 and a rotation detection sensor 38. Here, the detected part 36 is provided to the sprocket support structure 18 . On the other hand, the rotation detection sensor 38 is disposed in the hub body 14 . Specifically, here, the electrical component 20 includes a rotation detection sensor 38 . More specifically, the hub 10 further includes a circuit board 40 disposed in the hub body 14 . The circuit board 40 is located inside the electrical unit EU. The rotation detection sensor 38 is disposed on the circuit board 40 . In this manner, the circuit board 40 and rotation detection sensor 38 are non-rotatable relative to the hub axle 12 . As seen in FIG. 5 , a rotation detection sensor 38 is disposed in the hub body 14 at a location spaced radially outward from the hub axle 12 .

In the illustrated embodiment, the rotation detection sensor 38 includes a magnetic sensor 38a, and the detected component 36 includes a magnet 36a. Thus, the magnetic sensor 38a detects the movement of the magnet 36a that rotates with the sprocket support structure 18 . In other words, with this configuration, the rotation detection sensor 38 is configured to detect the detected component 36 in order to detect the rotation of the sprocket support structure 18 about the central axis A1. Here, the magnet 36a of the detected part 36 is an annular member with staggered S-pole segments and N-pole segments. In this way, the magnetic sensor 38a can detect an amount of rotation and a direction of rotation of the sprocket support structure 18 . 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 rotation detection sensor 38 receives power from the power generator 24, as discussed below.

The hub 10 further includes an electronic controller 42 disposed on the circuit board 40 . Electronic controller 42 is configured to receive a detection signal from rotation detection sensor 38 . Electronic controller 42 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. Electronic controller 42 receives power from power generator 24 . Electronic controller 42 is configured to control the power generated by power generator 24 . Here, the electrical component 20 includes a first power storage device 44 and a second power storage device 46 . Electronic controller 42 is configured to control the storage of power generated by power generator 24 in first power storage device 44 and second power storage device 46 . The first power storage device 44 and the second power storage device 46 are conventional power storage devices, such as a rechargeable battery, a capacitor, and the like. Electronic controller 42 is configured to control the distribution of power stored in first power storage device 44 and second power storage device 46 to other components. Thus, the power generated by the power generator 24 may be stored and/or directly supplied to other components, such as the rotation detection sensor 38, the rear derailleur RD, and the like.

Preferably, as seen in FIG. 5 , the hub 10 further includes a data storage device 48 disposed on the circuit board 40 . The data storage device 48 stores various control programs and information for various control programs including power generation control, power storage control, wheel rotation detection control, and the like. The data storage device 48 includes any computer storage device or any non-transitory computer readable medium, except for the only transitory broadcast signal. For example, data storage device 48 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).

Referring now to FIGS. 4 and 6-8, the sprocket support structure 18 will be discussed in greater detail. The sprocket support structure 18 basically includes an outer body 50 and an inner body 52 . The outer body 50 and the inner body 52 are tubular members disposed coaxially around the hub axle 12 . The outer body 50 is configured to support at least one sprocket CS. Here, the outer body 50 has a plurality of axially extending key grooves 50a provided on its outer peripheral surface for non-rotatably supporting the sprocket CS. The outer body 50 also has a plurality of axially extending ratchet teeth 50b disposed on its inner peripheral surface, which form a first portion of a one-way clutch. As explained below, the inner body 52 is coupled to the hub body 14 for rotation therewith.

The sprocket support structure 18 further includes a plurality of pawls 54 and a biasing element 56 . The plurality of pawls 54 and the biasing element 56 form a second portion of a one-way clutch. The pawl 54 is retained to the inner body 52 by a biasing element 56 such that the pawl 54 is biased towards engagement with the ratchet teeth 50b of the sprocket support structure 18 . More specifically, here, the biasing element 56 includes a pair of split rings 56A and 56B, wherein the ends of each split ring 56A and 56B partially overlap. A biasing element 56 is mounted around the inner body 52 with the pawl 54 positioned between the biasing element 56 and the inner body 52 . The biasing element 56 presses the pawl 54 against the inner body 52 such that the pawl 54 pivots toward engagement with the ratchet teeth 50b of the sprocket support structure 18 . In this way, the outer body 50 is coupled to the inner body 52 to rotate together in the driving rotational direction D1 about the central axis A1. Also, when the outer body 50 rotates in the non-driven rotational direction D2 , the ratchet teeth 50b of the sprocket support structure 18 push the pawl 54 and pivot the pawl 54 to a retracted position against the inner body 52 . Accordingly, the outer body 50 is configured to rotate relative to the inner body 52 about the central axis A1 in the non-driven rotational direction D2. In this manner, outer body 50, inner body 52, pawl 54 and biasing element 56 form one of the freewheels 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. 4 and 7 , the hub 10 further includes a fixing member 60 . Basically, the securing member 60 holds the inner body 52 to the hub body 14 . Specifically, the hub 10 further includes a coupling body 62. The coupling body 62 is coupled to the hub body 14 . The coupling body 62 is non-rotatably coupled to the hub body 14 and the securing member 60 attaches the inner body 52 to the coupling body 62 . In this manner, the inner body 52 is non-rotatably coupled to the hub body 14 . Here, in the illustrated embodiment, the hub 10 further includes a retainer 64 that is removably coupled to the hub body 14 . The retainer 64 retains the coupling body 62 to the hub body 14 . Accordingly, the inner body 52 is coupled to the hub body 14 via the coupling body 62 for rotation therewith. In other words, the hub body 14, the inner body 52, and the coupling body 62 are configured to rotate together. Thus, an input torque to the outer body 50 of the sprocket support structure 18 is transmitted to the hub body 14 via the inner body 52 and the coupling body 62 .

Basically, the fixing member 60 is a tubular member having a first end portion 60a and a second end portion 60b. The first end portion 60a abuts the inner body 52 . The second end portion 60b is coupled to the coupling body 62 . More specifically, the second end portion 60b has an external thread 60b1 for attaching the coupling body 62 to the fixing member 60 . The coupling body 62 holds the inner body 52 in the axial direction. The coupling body 62 prevents the inner body 52 from moving toward the second end portion 60b of the fixing member 60 . In this way, the inner body 52 is axially held between the coupling body 62 and one of the contact surfaces 60a1 of the fixing member 60 . Here, a washer 66 is disposed between the inner body 52 and the coupling body 62 . Preferably, the securing member 60 has an annular inner surface 60c. In order to attach the fixing member 60 to the coupling body 62, the fixing member 60 has a tool engaging portion 60d. Here, the stationary annular inner surface 60c includes a tool engaging portion 60d. Thus, the fixing member 60 constitutes a tubular fixing bolt. The outer thread 60b1 of the fixing member 60 is screwed into the inner thread 62b1 of the coupling body 62 .

The coupling body 62 will now be discussed in more detail. The coupling body 62 includes an outer peripheral portion 62a and an inner peripheral portion 62b. The outer peripheral portion 62a is coupled to the hub body 14, and the inner peripheral portion 62b is positioned radially inward from the outer peripheral portion 62a with respect to a radial direction of the central axis A1. Here, the outer peripheral portion 62a of the coupling body 62 includes a first coupling structure 62a1 having at least one of a key groove and a groove. Preferably, as in the illustrated embodiment, the first coupling structure 62a1 has a plurality of keyways and a plurality of grooves staggered in the circumferential direction. The hub body 14 includes a second coupling structure 14c having at least one of a keyway and a groove. Preferably, as in the illustrated embodiment, the second coupling structure 14c has a plurality of keyways and a plurality of grooves staggered in the circumferential direction. In this way, the first coupling structure 62a1 cooperates with the second coupling structure 14c to couple the coupling body 62 to the hub body 14 in a non-rotatable manner.

In the case where the coupling body 62 is non-rotatably coupled to the hub body 14 , the coupling body 62 is disposed between the rotation detection sensor 38 and the detected component 36 . More specifically, the coupling body 62 is disposed between the magnetic sensor 38 a and the detected component 36 . The coupling body 62 is at least partially made of a non-magnetic material or has an opening. For example, non-magnetic materials include austenitic stainless steel, high manganese steel, high nickel alloys, aluminum, and copper. Non-magnetic materials allow magnetic field lines to pass through. Here, as seen in FIG. 5, the coupling body 62 is made of a non-magnetic material such as a hard resin material and aluminum alloy. Therefore, the magnetic force of the detected component 36 passes through the coupling body 62 and reaches the rotation detection sensor 38 .

As mentioned above, the securing member 60 attaches the inner body 52 to the coupling body 62 . In particular, the second end portion 60b is coupled to the inner peripheral portion 62b of the coupling body 62 . In this way, the inner body 52 is axially held between the inner peripheral portion 62b of the coupling body 62 and the contact surface 60a1 of the fixing member 60 .

As mentioned above, the retainer 64 is removably coupled to the hub body 14 to retain the coupling body 62 to the hub body 14 . Here, the retainer 64 has one of the external threads 64a screwed to one of the internal threads 14d of the hub body 14 . The retainer 64 has an outer peripheral portion 62 a that contacts the coupling body 62 to retain the coupling body 62 to a contact surface 64 b of the hub body 14 . On the other hand, the inner peripheral portion 62b of the coupling body 62 is screwed to the fixing member 60 . Specifically, the inner peripheral portion 62b of the coupling body 62 has an inner thread 62b1 that is threadedly engaged with the outer thread 60b1 of the fixing member 60 . In this way, the fixing member 60 is attached to the inner peripheral portion 62b of the coupling body 62 . Accordingly, the coupling body 62 and the retainer 64 are coupled to the hub body 14 for rotation therewith.

Here, the inner body 52 includes a third coupling structure 52a having at least one of a keyway and a groove. Preferably, as in the illustrated embodiment, the third coupling structure 52a has a plurality of keyways and a plurality of grooves staggered in the circumferential direction. The coupling body 62 includes a fourth coupling structure 62b2 having at least one of a keyway and a groove. Preferably, as in the illustrated embodiment, the fourth coupling structure 62b2 has a plurality of keyways and a plurality of grooves staggered in the circumferential direction. In this way, the third coupling structure 52a cooperates with the fourth coupling structure 62b2 to couple the inner body 52 to the coupling body 62 in a non-rotatable manner.

Referring back to FIGS. 5 , 10 and 14 , the coupling body 62 has an annular recess 62 c that accommodates the detected component 36 . The detected part 36 includes a magnet 36a. As seen in FIG. 5 , the magnet 36a is non-rotatably coupled to the outer body 50 by a support ring 68 . The support ring 68 is secured to the outer body 50, such as by a press fit, a threaded connection, an adhesive, or other suitable fastening method. As seen in FIG. 14, the magnet 36a is a ring-shaped member having staggered S and N pole segments.

Referring now to Figures 15 to 20, the electrical unit EU will now be discussed in more detail. Here, the electrical component 20 includes a housing 70 and a cover 72 . The housing 70 defines an interior space 74 having a doughnut shape. The cover 72 is attached (eg, engaged) to the housing 70 to close the interior space 74 of the housing 70 . Preferably, the housing 70 and a cover 72 are preferably made of a non-metallic material (such as a resin material).

The housing 70 includes an inner peripheral portion 70a, an outer peripheral portion 70b and an end wall portion 70c. The inner peripheral portion 70a and the end wall portion 70c define a through opening 70d for receiving the hub axle 12 . The cover 72 has a plate for receiving a central opening 72a of the hub axle 12 . The end wall portion 70c of the housing 70 includes a plurality of keying protrusions 70e. The keying protrusion 70e is configured to engage an opening in a retaining plate 76 keyed to the groove 12d of the hub axle 12 . The fixing plate 76 has a plate shape. The fixing plate 76 includes a plurality of openings corresponding to the plurality of protrusions 70e. In this way, rotation of the electric unit EU relative to the hub axle 12 is prevented. The fixing plate 76 is arranged between the power generator 24 and the electric unit EU in the axial direction.

Here, the housing 70 supports the circuit board 40 , which in turn supports the rotation detection sensor 38 , the electronic controller 42 , and the data storage device 48 . The first power storage device 44 and the second power storage device 46 are supported to the end wall portion 70c. For example, the first power storage device 44 and the second power storage device 46 are joined to the end wall portion 70c.

Referring now to FIG. 21, a hub 110 according to a second embodiment is illustrated. Here, the only difference between the hub 10 and the hub 110 is the coupling body. Here, the hub 110 includes a coupling body 162 that is the same as the coupling body 62 of the hub 10 , except that the coupling body 162 includes a plurality of openings 163 . Therefore, the coupling body 162 may be made of a magnetically conductive material. In particular, the coupling body 162 may be made of a ferromagnetic material. Ferromagnetic materials have a shielding effect. For example, ferromagnetic materials include nickel, cobalt, and iron. The coupling body 162 rotates about the hub axle 12 . Therefore, it is preferable that the plurality of openings 163 are arranged in the circumferential direction with respect to the central axis A1. Therefore, the magnetic force of the detected part 36 is cut off at the coupling body 162 , but it passes through the plurality of openings 163 and reaches the rotation detection sensor 38 . In view of the similarity between the first embodiment and the second embodiment, parts of the second embodiment that are identical to parts of the first embodiment will be given the same reference numerals as parts of the first embodiment. In addition, the description of the components of the second embodiment that are the same as the components of the first embodiment may be omitted for the sake of brevity.

Referring now to FIG. 22, a hub 210 according to a third embodiment is illustrated. Here, the only difference between the hub 10 and the hub 210 is the coupling body, the detected component and the rotation detection sensor. Here, the hub 210 includes a detected component 236 and a rotation detection sensor 238 . The detected part 236 includes a reflective member 236a. For example, the reflective member 236a can be a reflective metal gasket or a non-metallic gasket with a reflective coating. The rotation detection sensor 238 includes an optical sensor 238a. The rotation detection sensor 238 further includes a light source 238b (eg, an LED) that outputs light detected by the optical sensor 238a.

Here, in the third embodiment, the hub 210 includes a coupling body 262 that is at least partially made of a transparent material or has an opening. Here, the coupling body 262 includes a plurality of openings 263 . The openings 263 may be provided with a transparent material or may be free of any material. In either case, the coupling body 262 is disposed between the optical sensor and the detected component 236 . In either case, opening 263 is sized and positioned such that light emitted by light source 238b passes through opening 263 and is reflected back through opening 263 by reflective member 236a for detection by optical sensor 238a. The coupling body 262 rotates about the hub axle 12 . Therefore, it is preferable that the plurality of openings 263 are arranged in the circumferential direction with respect to the central axis A1. Therefore, even if the coupling body 262 does not allow light to pass, the light emitted from the rotation detection sensor 238 still passes through the plurality of openings 263 , is reflected by the detected component 236 and returns to the rotation detection sensor 238 .

In view of the similarity between the first and third embodiments, parts of the third embodiment that are identical to parts of the first embodiment will be given the same reference numerals as parts of the first embodiment. In addition, the description of the components of the third embodiment that are the same as the components of the first embodiment may be omitted for the sake of brevity.

In understanding the scope of the invention, as used herein, the term "comprising" and its derivatives are intended to be 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. Also, the terms "part," "section," "portion," "member" or "element" when used in the singular can have the dual meaning of a single part or plural 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 directions of a human-powered vehicle field (eg, bicycle) in an upright riding position and equipped with a hub. Accordingly, when used to describe the hub, these directional terms should be interpreted relative to the field of human-powered vehicles (eg, bicycles) in an upright riding position on a horizontal surface and equipped with the hub. The terms "left" and "right" are used to indicate "right" when referring to the right side as viewed from behind the field of man-powered vehicles (eg, bicycles), and to indicate "right" when referring to the left side as viewed from behind the field of man-powered vehicles (eg, bicycles). left".

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" herein 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.

10: Wheels 12: Hub axle/shaft member 12-12: Section Line 12a: Main subject 12b: End piece 12c: Rotation limiting member 12d: groove 14: hub body 14-14: Section Line 14a: First outer flange 14b: Second outer flange 14c: Second coupling structure 14d: Internal thread 15-15: Section Line 16: Wheel holding mechanism 16-16: Section Line 16a: Shaft/String 16b: Cam body 16c: Cam lever/lever 16d: Adjusting nut 18: Sprocket support structure 20: Electrical Components 22: Cable 24: Power Generator 26: Cable 28: Armature 28A: First Yoke 28B: Second Yoke 28C: Coil 30: Magnets 30A: First magnet part 30B: Second magnet part 32: Tubular Support 36: Detected components 36a: Magnet 38: Rotation detection sensor 38a: Magnetic sensor 40: circuit board 42: Electronic controller 44: First Power Storage Device 46: First Power Storage Device 48: Data storage device 50: Outer body 50a: keyway 50b: Ratchet teeth/ratchet teeth extending axially 52: Inner Body/Inner Body 52a: the third coupling structure 54: Pawl 56: Bias element 56A: Split Ring 56B: split ring 60: Fixed components 60a: First end section 60a1: Contact surfaces 60b: Second end part 60b1: External thread 60c: Annular inner surface/fixed annular inner surface 60d: Tool engaging part 62: Coupling the main body 62a: Outer peripheral part 62b: Inner peripheral part 62b1: Internal thread 62b2: Fourth coupling structure 62c: annular recess 64: Retainer 64a: External thread 64b: Contact surface 66: Gasket 68: Support ring 70: Shell 70a: Inner peripheral part 70b: Outer peripheral part 70c: End wall section 70d: Through opening 70e: Keying protrusions/protrusions 72: Cover 74: Interior Space 76: Fixed plate 110: Wheels 162: Coupling body 163: Opening 210: Wheels 236: Detected component 236a: Reflective members 238: Rotation detection sensor 238a: Optical Sensors 238b: light source 262: Coupling body 263: Opening A1: Center axis ASP: Height Adjustable Seatpost BP: Primary battery pack/battery pack C: crank CA1: crank axle CA2: Crank Arm EN:chain CS: Rear sprocket/sprocket D1: Drive rotation direction/first rotation direction D2: Non-driving rotation direction/second rotation direction DT: drive train DU: Electric Drive Unit FB: Front frame body FF: Front fork FS: Front sprocket FW: Front Wheel H: handlebar PD: pedal RB: rear frame body RD: rear derailleur RS: Rear shock absorber RW: rear wheel S: Bike seat/saddle SC: Bike Computer SL: Shifter/Shifter V: human vehicle VB: Vehicle body

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 (eg, a bicycle) equipped with a bicycle component in the form of a hub, according to a first embodiment;

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

Figure 3 is a longitudinal elevation view of the hub illustrated in Figure 2 with the rear sprocket removed;

Figure 4 is a longitudinal cross-sectional view of the hub illustrated in Figures 2 and 3;

5 is a perspective view of the hub illustrated in FIGS. 2-4 with portions broken away to show a rotation detection sensor and a magnet provided to a sprocket support structure for detection An electrical unit for measuring the rotation of the sprocket support structure;

Figure 6 is a partially exploded perspective view of the hub illustrated in Figures 2-5 after an outer body of the sprocket support structure has been detached;

Figure 7 is a partially exploded perspective view of the hub illustrated in Figures 2-5 after a securing member has been detached to allow removal of an inner body of the sprocket support structure;

Figure 8 is a partially exploded perspective view of the hub illustrated in Figures 2-5 after the inner body of the sprocket support structure has been detached;

9 is a partially exploded perspective view of the hub illustrated in FIGS. 2-5 after a retainer has been detached so that a coupling body can be removed;

Figure 10 is a partially exploded perspective view of the hub illustrated in Figures 2-5 after the coupling body has been detached;

11 is a perspective view of the inner body attached to the sprocket support structure of the coupling body by the securing member;

Figure 12 is a longitudinal cross-sectional view of the inner body attached to the coupling body by the securing member, as seen along section line 12-12 of Figure 11;

Figure 13 is an exploded perspective view of the inner body, coupling body and securing member of the hub illustrated in Figures 2-5;

Figure 14 is a lateral view of the hub illustrated in Figures 2-5 seen along section lines 14-14 of Figure 3 to show the connection between the coupling body and the hub body;

Figure 15 is a perspective view of the hub illustrated in Figures 2-5 seen along section lines 15-15 of Figure 3 to show the electrical unit disposed in the hub body;

Figure 16 is a perspective view of the hub illustrated in Figures 2-5 taken along section lines 16-16 of Figure 3 to show an electrical component inside the hub;

Figure 17 is a first side perspective view of the electrical unit of the hub illustrated in Figures 2-5;

Figure 18 is a second side perspective view of the electrical unit illustrated in Figure 17 of the hub illustrated in Figures 2-5;

Figure 19 is a partially exploded perspective view of the electrical unit illustrated in Figures 17 and 18 of the hub illustrated in Figures 2-5;

20 is a partially exploded perspective view of the electrical unit illustrated in FIGS. 17-19 of the hub illustrated in FIGS. 2-5;

Figure 21 is a longitudinal cross-sectional view of a hub according to a second embodiment; and

Figure 22 is a longitudinal sectional view of a hub according to a third embodiment.

10: Wheels

12: Hub axle/shaft member

12a: Main subject

12b: End piece

12c: Rotation limiting member

14: hub body

14a: First outer flange

14b: Second outer flange

14d: Internal thread

18: Sprocket support structure

20: Electrical Components

22: Cable

26: Cable

36: Detected components

36a: Magnet

38: Rotation detection sensor

38a: Magnetic sensor

40: circuit board

42: Electronic controller

44: First Power Storage Device

46: First Power Storage Device

48: Data storage device

50: Outer body

50a: keyway

64: Retainer

64a: External thread

64b: Contact surface

68: Support ring

70: Shell

72: Cover

76: Fixed plate

A1: Center axis

D1: Drive rotation direction/first rotation direction

D2: Non-driving rotation direction/second rotation direction

Claims (32)

A hub for a human-powered vehicle, the hub comprising: a hub axle having a central axis; a hub body rotatably positioned about the central axis; a sprocket support structure rotatably disposed about the central axis to transmit a driving force to the hub body while rotating in a driving rotational direction about the central axis; a detected component disposed to the sprocket support structure; and A rotation detection sensor configured to detect the detected component in order to detect rotation of the sprocket support structure about the central axis and disposed in the hub body. As in the hub of claim 1, wherein The rotation detection sensor includes a magnetic sensor, and The detected component includes a magnet. The hub of claim 2, further comprising a coupling body coupled to the hub body and disposed between the magnetic sensor and the detected component, the coupling body being at least partially made of a non-magnetic material or having an opening. As in the hub of claim 1, wherein The rotation detection sensor includes an optical sensor, and The detected component includes a reflective member. The hub of claim 4, further comprising a coupling body coupled to the hub body and disposed between the optical sensor and the detected component, the coupling body being at least partially made of a transparent material or having an opening. As in the hub of claim 1, wherein The sprocket support structure includes an outer body configured to support at least one sprocket and an inner body coupled to the hub body for rotation therewith, and The outer body is coupled to the inner body for common rotation about the central axis in the driving rotational direction, and is configured to rotate relative to the inner body in a non-driving rotational direction about the central axis. The hub of claim 6, further comprising A coupling body is coupled to the hub body and the inner body, and is disposed between the rotation detection sensor and the detected component. The hub of claim 1, further comprising a circuit board disposed in the hub body, and The rotation detection sensor is arranged on the circuit board. The hub of claim 8, further comprising An electronic controller disposed on the circuit board and configured to receive a detection signal from the rotation detection sensor. The hub of claim 1, further comprising An electrical assembly is disposed in the hub body between the hub axle and the hub body in a radial direction relative to the central axis. As in the hub of claim 10, wherein The electrical component includes the rotation detection sensor. The hub of claim 10, further comprising A cable is electrically connected to the electrical assembly and passes axially through a space between the sprocket support structure and the hub axle. As in the hub of claim 12, wherein the hub axle includes a groove, and The cable is received in the groove. The hub of claim 10, further comprising an electrical power generator disposed in the hub body and configured to generate electrical power by rotation of the hub body, and The electrical component is electrically connected to the power generator. The hub of claim 1, further comprising An electrical power generator disposed in the hub body and configured to generate electrical power by rotation of the hub body. The hub of claim 15, further comprising A cable is electrically connected to the power generator and passes axially through a space between the sprocket support structure and the hub axle. As in the hub of claim 15, wherein the hub axle includes a groove, and The cable is received in the groove. A hub for a human-powered vehicle, the hub comprising: a hub axle having a central axis; a hub body rotatably positioned about the central axis; a coupling body including an outer peripheral portion coupled to the hub body and an inner peripheral portion positioned radially inward from the outer peripheral portion with respect to a radial direction of the central axis; a sprocket support structure rotatably positioned about the central axis to transmit a driving force to the hub body, the sprocket support structure comprising an outer body configured to support at least one sprocket, and an inner body coupled to the hub body via the coupling body for rotation therewith, the outer body coupled to the inner body for common rotation about the central axis in a drive rotational direction, and the outer body configured to rotates in a non-driven rotational direction about the central axis relative to the inner body; and a fixing member attached to the inner peripheral portion of the coupling body and attaching the inner body to the coupling body. As in the hub of claim 18, wherein The fixing member is a tubular member having a first end portion adjacent to the inner body and a second end portion coupled to the inner peripheral portion of the coupling body. As in the hub of claim 18, wherein The inner peripheral portion of the coupling body is threadedly connected to the fixing member. As in the hub of claim 18, wherein The outer peripheral portion of the coupling body includes a first coupling structure having at least one of a keyway and a groove, The hub body includes a second coupling structure having at least one of a keyway and a groove, and The first coupling structure cooperates with the second coupling structure to non-rotatably couple the coupling body to the hub body. As in the hub of claim 18, wherein The inner body includes a third coupling structure having at least one of a keyway and a groove, The coupling body includes a fourth coupling structure having at least one of a keyway and a groove, and The third coupling structure cooperates with the fourth coupling structure to non-rotatably couple the inner body to the coupling body. The hub of claim 18, further comprising A retainer removably coupled to the hub body and retaining the coupling body to the hub body. As in the hub of claim 18, wherein The inner body is axially held between the coupling body and a contact surface of the fixing member. As in the hub of claim 18, wherein The fixing member has a tool engaging portion. As in the hub of claim 25, wherein The securing member has an annular inner surface containing the tool engaging portion. The hub of claim 18, further comprising an electrical component disposed in the hub body in the radial direction relative to the central axis between the hub axle and the hub body, and A cable is electrically connected to the electrical assembly and passes axially through a space between the stationary member and the hub axle. As in the hub of claim 27, wherein the hub axle includes a groove, and The cable is received in the groove. The hub of claim 27, further comprising an electrical power generator disposed in the hub body and configured to generate electrical power by rotation of the hub body, and The electrical component is electrically connected to the power generator. The hub of claim 18, further comprising A power generator disposed in the hub body and configured to generate electricity by rotation of the hub body. The hub of claim 30, further comprising A cable is electrically connected to the power generator and passes axially through a space between the stationary member and the hub axle. As in the hub of claim 31, wherein the hub axle includes a groove, and The cable is received in the groove.

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