Bicycle derailleur

Abstract

A bicycle derailleur includes a base member mountable to a bicycle frame and a cage assembly movably coupled to the base member. One or both of an electric motor and / or generator system can be coupled to and movable with the cage assembly. The electric motor is operable to move the cage assembly. The generator system includes a generator and a generator drive system. An energy storage device spaced apart from the cage assembly can be connected to the generator system and / or electric motor with flexible electrical conductors.

Description

[0001] This application is a continuation-in-part of U.S. Patent Application No. S / N17 / 314,949, filed on May 7, 2021, entitled “Bicycle Derailleur,” the entire disclosure of which is incorporated herein by reference. Technical Field

[0002] This application generally relates to bicycle derailleurs, including, for example, but not limited to, bicycle rear derailleurs incorporating an energy harvesting system. Background Technology

[0003] Bicycle derailleurs are typically integrated into the bicycle's drivetrain. A typical drivetrain also includes a crank assembly coupled to one or more drive sprockets. This crank assembly is operable to drive a chain arranged or wound around one of the drive sprockets. The chain may also be arranged to one of the bicycle's wheels, such as the rear wheel, where the chain may engage one or more driven sprockets. The derailleur is configured as part of the drivetrain. For example, one derailleur (e.g., a front derailleur) may be positioned adjacent to one or more drive sprockets, while another derailleur (e.g., a rear derailleur) may be positioned adjacent to driven sprockets, such as adjacent to the rear wheel. The derailleur can be actuated to selectively shift the chain of the drivetrain between drive sprockets, and / or selectively shift the chain between one or more driven sprockets. Shifting the bicycle chain from one drive sprocket to another or from one driven sprocket to another is done to change the gear ratio of the drivetrain. The rear derailleur can also apply tension to the chain to tighten any looseness in the chain on the non-drive side of the drivetrain and to maintain a desired tension.

[0004] In some implementations, the rear derailleur may be wireless, electrically actuated, and relies on a battery to power the electric motor. The battery may require periodic charging or replacement, which can be inconvenient if it discharges during bicycle use or in remote locations where charging stations or battery replacement facilities are inconvenient. Summary of the Invention

[0005] In one aspect, one embodiment of a bicycle derailleur may include a base member mountable to a bicycle frame and a cage assembly movably coupled to the base member. The cage is movable in opposite first and second directions relative to the base member. An electric motor may be coupled to the cage assembly and is movable together with the cage assembly in the opposite first and second directions. The electric motor is operable to move the cage assembly in the opposite first and second directions. In one embodiment, the cage assembly may include a sprocket rotatably coupled to the cage assembly about a first axis of rotation.

[0006] In another aspect, one embodiment of a bicycle derailleur may include a base member that can be mounted to a bicycle frame and a cage assembly that is movably coupled to the base member. A generator system may be coupled to the cage assembly and is movable with the cage assembly. The generator system may include a generator and a generator drive system. The generator drive system may include a sprocket and a generator transmission, the sprocket being rotatably coupled to the cage assembly about a first axis of rotation, and the generator transmission being operably coupled between the sprocket and the generator.

[0007] In another embodiment, a bicycle derailleur may include a base member that can be mounted to a bicycle frame and a cage assembly that is movably coupled to the base member. A generator system may be coupled to the cage assembly and is movable with the cage assembly. The generator system may include a generator and a generator drive system. The generator drive system may include a sprocket and a clutch, the sprocket being rotatable about a first axis of rotation in opposite first and second rotational directions. When the sprocket rotates in the first rotational direction, the clutch can driveably connect the sprocket and the generator, thereby starting the generator. When the sprocket rotates in the second rotational direction, the clutch disengages the sprocket and the generator, thereby deactivating the generator.

[0008] On the other hand, a bicycle derailleur may include a base member that can be mounted to a bicycle frame and a cage assembly that is movably coupled to the base member. A generator system may be coupled to the cage assembly and is movable with the cage assembly. The generator system may include a generator and a generator drive system. The generator drive system may include: a sprocket rotatable about a first axis of rotation; at least a first pulley and a second pulley rotatable about a second axis of rotation and a third axis of rotation, respectively; and a belt engaging with the first pulley and the second pulley. In one embodiment, the first pulley and the second pulley may have a pulley ratio greater than 1.

[0009] In another embodiment, a bicycle derailleur includes: a base member mountable to a bicycle frame; a cage assembly movably coupled to the base member via a coupling assembly; and a generator system coupled to the cage assembly and movable together with it. In one embodiment, at least one energy storage device is mounted on at least one of the base member and / or the coupling assembly, wherein the energy storage device is electrically connected to the generator system. In another embodiment, the energy storage device is spaced apart from the cage assembly, wherein the cage assembly is movable relative to the energy storage device. A flexible electrical conductor electrically connects the energy storage device and the generator system.

[0010] The various aspects and implementations of the transmission, as well as the methods for its use and assembly, can provide significant advantages over other transmissions and methods. For example, but not limited to, the electric motor and / or the generator system can be mounted on the cage and be movable with the cage. If damaged, the cage, including the electric motor and generator system, can be quickly and easily replaced without replacing other components of the transmission. Furthermore, the cage can include input to the generator system and electric motor via coupled sprockets, wherein the components are fixed in position relative to each other and are movable with the cage because the cage: (1) moves laterally during gear shifting, and / or (2) rotates to maintain tension in the chain. In this way, the assembly avoids the need for either electrical or mechanical connections between any components located on the cage and components located on other parts of the transmission, which can be movable relative to each other. Furthermore, the generator system ensures that electricity is always available to power the electric motor, for example during gear shifting, and / or for other activities and accessories requiring electricity. Furthermore, the energy storage device may be spaced apart from the cage and, for example, electrically connected to the generator system using an electrical conductor, such that additional energy storage options, including rechargeable and non-rechargeable batteries, can be used to power the motor and / or other accessories.

[0011] The foregoing paragraphs have been provided by way of general description and are not intended to limit the scope of the following claims. Various preferred embodiments and further advantages will be better understood by referring to the following detailed description taken in conjunction with the accompanying drawings. Attached Figure Description

[0012] The objects, features, and advantages of the present invention will become apparent from the following description taken in conjunction with the accompanying drawings, wherein:

[0013] Figure 1 This is a partial side view of a bicycle with a rear derailleur assembled thereon, which has a cage assembly in a fully clockwise rotation position.

[0014] Figure 2 This is a partial side view of a bicycle with a rear derailleur assembled, the rear derailleur having a cage assembly in a fully counterclockwise rotating position.

[0015] Figure 3 This is a top view of the rear transmission in its outermost position.

[0016] Figure 4 This is an outer view of one embodiment of a rear transmission with a cage assembly in a fully clockwise rotational position.

[0017] Figure 5 This is a top view of the rear transmission in its innermost position.

[0018] Figure 6 This is an outer view of one embodiment of a rear transmission with a cage assembly in a fully counterclockwise rotation position.

[0019] Figure 7 This is a side perspective view of the cage assembly.

[0020] Figure 8 yes Figure 7 The outer view of the cage assembly shown.

[0021] Figure 9 yes Figure 7 The inside view of the cage assembly shown.

[0022] Figure 10 It is along Figure 8 A cross-sectional view of the cage assembly cut along line 10-10.

[0023] Figure 11 It is a 3D diagram of a sprocket.

[0024] Figure 12 This is a 3D view of the sprocket shaft.

[0025] Figure 13 It is along Figure 8 A cross-sectional view of the cage assembly cut along line 13-13.

[0026] Figure 14 It is a 3D diagram with a tension adjustment system.

[0027] Figure 15 It is along Figure 8 A cross-sectional view of the cage assembly cut along line 15-15.

[0028] Figure 16 This is a 3D view of the main printed circuit board.

[0029] Figure 17 It is a 3D diagram of the electric motor and the gear shift drive system.

[0030] Figure 18 yes Figure 17 The diagram shows an exploded view of the electric motor and shift drive system.

[0031] Figure 19 This is a partial side perspective view of the cage assembly with the cover removed.

[0032] Figure 20 It is along Figure 4 A cross-sectional view of the transmission cut along line 20-20.

[0033] Figure 21 It is along Figure 6 A cross-sectional view of the transmission cut along line 21-21.

[0034] Figure 22 It is a three-dimensional view of the retainer shaft.

[0035] Figure 23 This is a 3D view of the guide nut.

[0036] Figure 24 It is a 3D view of the guide screw and the spur gear.

[0037] Figure 25 It is a 3D view of the crank arm.

[0038] Figure 26 It is a 3D diagram of the driving element.

[0039] Figure 27 It is a 3D diagram of the pin.

[0040] Figure 28 This is a perspective view of the transmission with a portion of its movable components cut off.

[0041] Figure 29 It is along Figure 5 The cross-sectional view cut by line 29-29 in the middle.

[0042] Figure 30 This is a partial side view of another embodiment of the cage assembly.

[0043] Figure 31 yes Figure 30 The cage assembly shown is a relative partial side view.

[0044] Figure 32 This is a perspective view of one embodiment of a gear equipped with a clutch.

[0045] Figure 33 yes Figure 32 The diagram shows a perspective view of a drive component, which includes a portion of a clutch.

[0046] Figure 34 This is a schematic diagram illustrating a generator and motor control system.

[0047] Figure 35A and Figure 35B These are graphs showing the phase detection sequences of the generator for both forward and reverse pedaling.

[0048] Figure 36 It shows a graph of the sensed voltage versus time for the pedaling sequence.

[0049] Figure 37A side view of a bicycle with a rear derailleur is shown.

[0050] Figure 38 This is an outer view of an alternative embodiment of the rear transmission with a cage assembly in a fully clockwise rotational position.

[0051] Figure 39 yes Figure 38 The rear transmission shown is an outside view with the cover removed.

[0052] Figure 40 yes Figure 38 The diagram shows a perspective view of the rear transmission.

[0053] Figure 41 yes Figure 39 The diagram shows a perspective view of the rear transmission.

[0054] Figure 42 This is a schematic diagram illustrating various installation options for the energy storage device relative to the rear transmission. Detailed Implementation

[0055] It should be understood that the term "a plurality of" as used herein means two or more. The term "longitudinal" as used herein means length or longitudinal direction, or related to it. The term "lateral" as used herein means located, pointing, or running in a left-right direction. The term "connected" means connected to or joined, whether directly or indirectly (e.g., by means of an intervening member), and does not require the connection to be fixed or permanent, although it may be fixed or permanent. The terms "first," "second," etc., as used herein do not mean assigned to a particular component so specified, but simply refer to these components in the numerical order stated herein, meaning that a component designated as "first" may later be a component such as "second," depending on the order in which they are referred. It should also be understood that the designation of "first" and "second" does not necessarily mean that the two components or values ​​so specified are different, meaning that, for example, a first direction may be the same as a second direction, wherein each direction applies only to different components. The terms "up," "down," "rear," "front," "front part," "rear part," "vertical," "horizontal," "right," "left," "inner side," "outer side," and their variations or derivatives refer to the orientation of the exemplary bicycle 150 from the perspective of a user seated thereon, such as Figure 37 As shown, for example, the "inner" component or feature is closer to the vertical center plane of the bicycle extending in direction 201. The term "lateral" indicates non-parallelism. The terms "outer" and "outward" refer to a direction or feature away from the center position; for example, the phrases "radial outward," "radial direction," and / or their derivatives refer to features that deviate from the center position, such as... Figure 2The rotation axis 152 of the chainring 3 shown. Conversely, the terms "inward" and "towards" refer to a direction facing the center or interior position. The term "sub-assembly" refers to an assembly of multiple parts, wherein the sub-assembly can be further assembled into other sub-assemblies and / or final assemblies, such as bicycle 150.

[0056] bike:

[0057] Figure 37 An example of a human-powered vehicle is illustrated. In this example, the vehicle is a bicycle 150, such as a road bicycle. The bicycle 150 has a frame 2, handlebars 154 near the front end of the frame, and a seat or saddle 156 for supporting the rider on top of the frame. The bicycle 150 has a first or front wheel 158 carried by a fork assembly 160 supporting the front end of the frame. The bicycle 150 also has a second or rear wheel 162 supporting the rear end of the frame 2, which includes a pair of chainstays 164 connected to a pair of seat forks 165 (see also...). Figure 1 The rear end of frame 2 can be supported by a rear suspension component such as a rear shock absorber 167. Bicycle 150 also has a drivetrain 168 having a crank assembly 166 operably coupled to a rear sprocket 3 via a bicycle chain 4, also referred to as a driven sprocket assembly, near the hub providing the axis of rotation for the rear wheel 162. Crank assembly 166 includes at least one (typically two) crank arms 170 and pedals 176, as well as a front chainring assembly 172 or drive sprocket assembly. A crank spindle or shaft can connect the two crank arms. The crank shaft defines a central axis of rotation 174 for the chainring assembly 172. The crank assembly may also include other components.

[0058] A rear derailleur, such as a rear derailleur 180, is arranged at the rear wheel 162 to move the bicycle chain 4 to different sprockets on the chainring 3. In one embodiment, the front derailleur or front derailleur may be configured to move the chain 4 to different sprockets on the chain link assembly. In the illustrated example, the saddle 156 is supported on a seatpost 178 having an end portion received in the top of the frame seat tube of the frame 2.

[0059] exist Figure 37 The image shows the normal riding or forward movement direction 201 of the bicycle 150. Although Figure 37The bicycle 150 shown is a mountain bike, but the rear gear shifter or rear derailleur 180, including the specific embodiments and examples disclosed herein as well as alternative embodiments and examples, can be implemented on other types of bicycles. For example, but not limited to, the disclosed rear derailleur 180 can be used on road bicycles and any other type of bicycle incorporating a derailleur. It should be understood that the various energy harvesting systems and embodiments disclosed herein can also be incorporated at any location (e.g., the front) into a derailleur having a cage assembly with rotatable wheels.

[0060] Rear transmission:

[0061] Reference Figures 1 to 6 , Figure 28 as well as Figures 38 to 41 The rear derailleur 180 includes a base member 5 (also referred to as a b-steering knuckle) that can be attached to the bicycle frame 2 using a fastener 10 (e.g., a b-bolt). The frame 2 may include a tail hook 184 that is attached to the frame 2 at a junction between the rear upper fork 165 and the rear lower fork 164. The base member 5 may be attached to the tail hook 184 or directly to the frame 2. The base member 5 is detachably attached to the frame 2 using the fastener 10 and can pivot freely about the axis (A) of the fastener 10. An adjusting member 11, which can be configured as a screw, threadedly engages with the base member and can be actuated to adjust the rotational position of the base member 5 relative to the frame 2.

[0062] The linkage 186 includes an inner link 7 and an outer link 6, which have first ends 188 and 190 respectively rotatably connected to the base member 5 via, for example, a first shaft or pin 15 and a second shaft or pin 16. A movable member 8 (also referred to as a p-steering knuckle) is rotatably connected to opposite second ends 194 and 196 of the inner link 7 and outer link 6 via a third shaft or pin 17 and a fourth shaft or pin 18, such that the outer link 6 and inner link 7 extend between the base member 5 and the movable member 8. Figure 29 As shown, pin 18 can be supported by a pair of bushings 103 in the movable member 8. The base member 5, movable member 8, inner link 7, and outer link 6 form a four-bar linkage, particularly a parallelogram linkage 186. In this way, the movable member 8 can be movably connected to the base member 5. In one embodiment, the movable member 8 can move relative to the base member 5 and the frame 2 in opposite inner and outer directions. It should be understood that the movable member 8 can be movably connected to the base member 5 using other components and / or linkages besides the disclosed linkages, which may or may not include one or more links.

[0063] like Figure 3As shown, a biasing member 14, which can be configured as a torsion spring, biases the linkage 186 to rotate clockwise or outward (e.g., around the first pin 15 and the second pin 16). In one embodiment, the biasing member 14 can be arranged coaxially with the second pin 16, and the biasing member has a first end that engages the base member and a second end that engages the linkage 186 (e.g., the outer link 6). The transmission may include a rotation limiter comprising, for example, an upper limit screw 12 and a lower limit screw 13, which threadedly engage the base member 5 and limit the movement of the inner link 7 and the outer link 6, respectively.

[0064] See Figure 3 In an alternative embodiment, the biasing force of the biasing member 14 can be reversed, causing the biasing member 14 to bias the linkage 186 to rotate counterclockwise or inward. In operation, as... Figure 3 As shown, chain 4 can apply a traction force to pulley 22, which can cause linkage 186 to rotate counterclockwise. In this embodiment, biasing member 14 and pulley 22 work together to bias linkage 186 in the same direction. Thus, the parallelogram-shaped linkage is biased in the same direction of rotation by the biasing force applied by biasing member 14 and the traction force applied by chain to pulley 22.

[0065] Reference Figures 7 to 9 as well as Figures 38 to 41 The transmission 180 may include a cage assembly 9 movably coupled to a base member 5 via a coupling assembly 500, in one embodiment including a linkage 186 and a movable member 8. The cage assembly 9 may move relative to the base member 5 in opposite first and second translational directions (e.g., inner and outer). The cage assembly 9 may also move about an axis B extending laterally relative to the movable member 8 and the base member 5 in opposite first and second rotational directions (e.g., clockwise and counterclockwise), or may move relative to the base member 5 using a combination of translation and rotation. Specifically, the cage assembly 9 may be rotatably connected to the movable member using a fastener extending laterally and defining a rotational axis B. The cage assembly may rotate clockwise about the axis B of the fastener to tighten looseness in a chain 4, which engages with a chainring 3, an upper sprocket 21, and a lower sprocket 22. The upper sprocket 21 and the lower sprocket 22 are rotatably connected to the cage assembly 9.

[0066] Reference Figures 5 to 9 , Figure 10 , Figure 13 as well as Figures 38 to 41The cage assembly 9 may include one or both of the outer cages 24, which are secured to the inner cage 25, for example, using fasteners 29 and 30 configured as screws, snap-fits, and / or other known suitable fastening devices. The lower sprocket 22 rotates on a ball bearing having an inner race clamped between the inner cage 25 and the outer cage 24, using fasteners configured as screws 30 (screwed into the inner cage 25). This connection also serves to secure the inner cage 25 to the outer cage 24. The cover 23 is secured to the outer cage 24 using a plurality of fasteners 28, shown as nine screws spaced around the periphery of the cover 23, wherein the cover and the outer cage define the housing 200. It should be understood that the term "housing" refers to a component capable of supporting or retaining other components and may be closed or open. Thus, in one embodiment, the outer retainer and / or cover may each individually define the housing, or may combine to define the housing 200, which is closed and sealed to prevent fluid intrusion into the interior of the housing. (See also...) Figure 10 and Figure 13 The resilient sealing element 32 can be arranged in a groove 202 formed in the outer retainer 24. It should be understood that the groove can alternatively be formed in the cover. The groove 202 can define a closed loop along the contour of the outer edge of the cover 23, wherein the sealing element 32 forms a fluid seal between the outer retainer 24 and the cover 23 or housing 200. In one embodiment, a fastener 29 is threadedly engaged with the outer retainer 24 and secures the inner retainer 25 to the outer retainer 24.

[0067] like Figures 10 to 13As shown, one embodiment of the upper wheel pulley assembly includes a sealed ball bearing assembly 33 received in a recess 204 formed in the outer cage 24 and engaged by a shoulder of an annular flange 206. A ball bearing assembly 34 is received in a recess 208 formed in the cover 23 and supported on the outer surface 210 of the housing. A pulley shaft 35 is arranged within and supported by the inner races of the ball bearing assemblies 33 and 34. The pulley shaft 35 has an end 212 rotatably supported by the ball bearing assembly 34, wherein an annular shoulder 214 engages the inner race and captures the bearing assembly 34 between the shoulder 214 and the surface 210. The pulley shaft 35 includes an annular flange 216 laterally spaced from an annular shoulder 214, wherein the annular flange 216 defines a second annular shoulder 218, which engages the inner race of the ball bearing 34 and captures the bearing assembly 33 between the shoulder 218 and the annular flange 206. The annular shoulders 214 and 216 face opposite directions, such that the annular shoulders restrict axial movement of the shaft 35 in both lateral directions (inner and outer). The ball bearing assembly 33 is captured between the outer cage 24 or the annular shoulder defined therefrom and the annular shoulder 216 of the shaft 35. In one embodiment, a sealing element 346 configured as an O-ring is positioned in a circumferential groove 220, which is formed inwardly in the shaft 35 and spaced from the annular flange 216. This groove may alternatively be formed in the ball bearing assembly. A sealing element 346 forms a fluid seal between the pulley shaft 35 and the inner race of the ball bearing assembly 33, thereby preventing fluid from entering the interior space of the housing 200 defined between the cover 23 and the outer retainer 24. The pulley shaft 35 may include an axially extending bore 222. The bore 222 may be threaded and may be threadedly engaged by a fastener 31 shown as a screw.

[0068] Reference Figure 11 and Figure 12 In one embodiment, the upper sprocket 21 may include a keyhole 21b having a cross-shaped recess 226. The pulley shaft 35 may be configured with a corresponding key 224, or with an insertion portion that mates with a corresponding cross-shaped protrusion 35b. Figure 10As shown, when the upper sprocket 21 is assembled, the key 224 abuts against the keyhole 21b and ensures a non-rotatable engagement or connection with the keyhole 21b, for example, by means of the protrusion 35b engaging with the recess 226. The sprocket 21 includes a hub 228 having an inner surface 230 that abuts against an end surface 35a defined between the protrusions 35b of the pulley shaft 35. Through the abutment between the key 224 and the keyhole 21b, the upper sprocket 21 is non-rotatably and axially fixed to the pulley shaft 35, such that torsion can be transmitted between the upper sprocket 21 and the pulley shaft 35 (i.e., between the protrusion 35b and the recess 226) via the key 224 and the keyhole 21b. Figure 10 As shown, the pulley shaft 35 is captured between the cover 23 and the outer retainer 24, wherein the sprocket 21 is fixed to the shaft 35. Thus, the sprocket 21 is not captured or clamped between the inner retainer 25 and the outer retainer 24. Instead, the sprocket 21 is cantilevered on the end of the shaft 35, which is supported by the housing 200 outside the sprocket 21. Thus, the inner retainer 25 does not overlap the sprocket 21, and in particular the pulley shaft 35, but rather... Figure 9 As shown, it can be configured to provide a clearance between the inner cage and the upper pulley system. Therefore, to replace the sprocket, it is not necessary to remove the inner cage 25 from the outer cage 24. Of course, in other embodiments, the inner cage can be stacked on top of the sprocket.

[0069] Generator system:

[0070] Reference Figures 13 to 16 , Figure 19 , Figure 30 , Figure 31 as well as Figures 38 to 41 The generator system 240 is coupled to and movable with the cage assembly 9, meaning that when the cage assembly moves relative to the moving member 8, the base 5, and the bicycle frame 2, the generator system 240 translates and rotates together with the cage assembly 9. In other words, the generator system is fixed to the cage assembly and follows the movement path of the cage assembly. In one embodiment, the generator system 240 is arranged in a housing 200 defined by a cover 23 and an outer cage 24, and can be completely enclosed within a sealed inner cavity 242 defined between the cover 23 and the outer cage 24. The generator system 240 includes a generator 50 and a generator drive system 244, wherein the generator drive system 244 includes an input section. Figures 4 to 9 as well as Figure 13 As shown, in one embodiment, the input section can be configured to be rotatably coupled to a sprocket 21 of the housing 200, particularly the outer retainer 24 and the cover 23. The sprocket 21 is rotatable about a rotation axis 246. Figures 38 to 41In the alternative embodiment shown, the input section can be configured to be rotatably coupled to the sprocket 22 of the housing. In this way, the generator 50 can be mounted to a cage between the upper sprocket 21 and the lower sprocket 22, such that the generator can be driven by one (or both) of the sprockets 21 and 22 or the input section. The generator drive system 244 may also include a generator transmission 250 operably coupled between the input section (e.g., sprocket 21 or sprocket 22) and the output section (e.g., generator 50). The generator transmission 250 includes a first generator spur gear 37 non-rotatably and axially fixed to the pulley shaft 35, such that the spur gear 37 rotates together with the sprocket 21 about a rotation axis 246, or together with the sprocket 22 about a rotation axis 247. For example, but not limited to, the spur gear 37 may be fixed to the pulley shaft by friction engagement and / or by a spline interface. A spur gear 37 is arranged in a space or cavity 242 defined between a cover and an outer retainer. The first generator spur gear 37 has a plurality of teeth 260 circumferentially spaced around its outer edge, wherein the teeth 260 mesh with teeth 262 circumferentially spaced around the outer edge of a pinion 38. The pinion 38 is rotatable about a shaft 44 supported by an outer retainer 24 and a cover 23 and located between the outer retainer 24 and the cover 23. In one embodiment, the spur gear 37 has thirty (30) teeth 260, while the pinion 38 has ten (10) teeth 262, providing a 3:1 gear ratio, meaning that one rotation of the spur gear 37 results in three (3) rotations of the pinion 38. In one embodiment, the sprocket 21 has a plurality of teeth, for example, 12. In one embodiment, the shaft 44 has a first end that engages with the outer retainer 24 (e.g., a non-rotatable engagement, such as a threaded engagement), making the shaft 44 non-rotatable, wherein an opposing second end engages with the cover 23. Alternatively, the shaft 44 may be allowed to rotate relative to the outer retainer 24. The pinion 38 includes a hub 264 that rotates about a rotation axis 266 on the shaft 44. The second generator spur gear 39 is coaxially and non-rotatably fixed to the first generator pinion 38 and the first generator pinion 338, particularly to the hub 264, and rotates with and is driven by the pinion 38 and the pinion 338. In one embodiment, the spur gear 39 and the spur gear 339 have thirty-six (36) teeth 268 circumferentially spaced around their outer edges. The teeth 268 of the spur gears mesh with teeth 270 circumferentially spaced around the outer edges of the pinion 40, which is supported by and rotatable about a shaft 45, which may be rotatably or non-rotatably supported by the outer retainer 24 and the cover 23 and located between the outer retainer 24 and the cover 23.In one embodiment, shaft 45 has a first end that engages (e.g., threadedly) with outer retainer 24, making the shaft non-rotatable, wherein the opposite second end engages with housing 24. In another embodiment, the shaft is rotatably supported by outer retainer 24 and cover 23 and is located between outer retainer 24 and cover 23. Pinion 40 includes hub 274 that rotates on the shaft about axis of rotation 272. Pinion 40 may have, for example, twelve (12) teeth 270 to provide a 3:1 gear ratio between spur gear 39 and pinion 40, meaning that one rotation of spur gear 39 results in three (3) rotations of pinion 40.

[0071] The generator transmission 250 further includes at least a first pulley 41 and a second pulley 42, and a belt 43. The first and second pulleys are rotatably connected to the housing 200 about rotation axes 272 and 280, respectively, and the belt 43 meshes with the first and second pulleys. In one embodiment, the first generator pulley 41 preferably has a plurality of teeth 276, for example, 75 teeth 276, and is coaxially and non-rotatably fixed to the hub 274 of the pinion 40, wherein the pulley 41 and the pinion 40 are rotatable about the rotation axis 272. The second pulley 42 has a plurality of teeth 278, for example, 20 teeth, and is coaxially and non-rotatably fixed to the rotor 47 of the generator 50, wherein the pulley 42 and the rotor 47 are rotatable about the rotation axis 280. The belt 43 forms a continuous or cyclic loop. In one embodiment, the belt 43 may be a toothed belt having a plurality of teeth 282 formed around the inner surface of the loop. In one embodiment, belt 43 may include, for example, but not limited to, 91 teeth 282. Belt 43, and especially teeth 282, mesh with first pulley 41 and second pulley 42 and their teeth 276 and 278. In one embodiment, belt 43 is used at the position of maximum rotational speed in the transmission, or at a stage where the generator rotates directly. For example, belts can be used instead of gears to reduce transmission noise, as belts are generally quieter and do not produce the high-pitched noise generated by rapidly moving teeth. Of course, it should be understood that gears can be used instead of belts. Pulleys 41 and 42 have a pulley ratio greater than 1, and in one embodiment a ratio of 3.75:1. It should be understood that in other embodiments, belt 43 and pulleys 41 and 42 may be configured without teeth, wherein belt 43 engages pulleys 41 and 42 by friction. Rotor 47 is rotatably received in a bore 284 defined by generator base 46. The generator 50 includes a stator 48 disposed on the outer periphery of the rotor 47 or inside the annular wall 286. The stator may be non-rotatably fixed to the generator base 46, wherein the rotor 47 may rotate relative to the stator 48 about a rotation axis 280. In one embodiment, the sprocket 21 or input end has a first speed, and the generator 50 (e.g., the rotor 47 or output end) has a second speed, wherein the generator transmission provides a ratio between the first speed and the second speed that is between 20:1 and 50:1, including 20:1 and 50:1. In one embodiment, the total transmission ratio of the transmission between the upper pulley 21 of the generator 50 and the rotor 47 is preferably 33.75:1 (e.g., total transmission ratio = (transmission ratio 1) * (transmission ratio 2) * (pulley ratio 3) = 3 * 3 * 3.75 = 33.75:1, which means that the speed of the rotor 47 will be 33.75 times greater than the speed of the upper pulley 21).It should be understood that this ratio can be changed by altering any transmission ratio between spur gear 37 and pinion 38, between pinion 338, between spur gear 39, between spur gear 339 and pinion 40, and between first pulley 41 and second pulley 42.

[0072] In one implementation, such as Figures 30 to 33As shown, the generator drive 250 includes a clutch 290 and a rotor 47. Specifically, when the sprocket 21 rotates in a first rotational direction, the clutch 290 drivably connects the sprocket 21 and the generator 50, actuating the generator 50, meaning that the rotor 47 rotates relative to the stator 48. When the sprocket 21 rotates in a second rotational direction, the clutch 290 disengages from the sprocket 21 and the generator 50, disabling the generator 50, meaning that the rotor 47 does not rotate relative to the stator 48. In one embodiment, the clutch 290 is arranged between a spur gear 339 and a pinion 338. It should be understood that the clutch 290 can also be arranged between any coaxially mounted components, including, for example, between the sprocket 21 and the spur gear 37, or between the pinion 40 and the pulley 41. In other embodiments, the clutch can be arranged between non-coaxially mounted components, such as a sliding interface between adjacent pulleys. In one embodiment of the clutch, the pinion 338 defines a drive member that is rotatably supported by a shaft 44. It should be understood that the drive member can be a spur gear. In either case, the clutch 290 is arranged or mounted between the driving member (i.e., pinion 338) and the driven member (i.e., spur gear 339). In this way, the clutch 290 provides unidirectional rotational engagement between the driving member and the driven member. In one embodiment, the clutch 290 includes at least one spring finger 292, and preferably includes a plurality of spring fingers (shown as two). In one embodiment, the driven member, gear, or pulley may include a hub 294 having at least one recess 296, and preferably having a plurality of recesses 296 corresponding to the number of spring fingers 292 (e.g., two), however the number may vary. In one embodiment, the spring finger 292 molded together with the spur gear 339 may be configured as a cantilever leaf spring having a curved arm 302 extending from the web of the spur gear 339 and terminating at an engagement end 304. When the arm 302 is in a non-biased position, i.e., not preloaded, the engagement end 304 is radially inwardly positioned from the inner bearing surface 306 of the driven gear or spur gear 339. Arm 302 is preloaded by moving the engagement end 304 radially outward until it engages the hub 294 of the pinion 338 or the outer bearing surface 310 of the shaft. A notch 296 is formed and extends radially inward from the bearing surface 310. In one embodiment, the notch includes an inclined surface 298 that tapers inward from and intersects the bearing surface 310, and a stop surface 300 that extends from the inclined surface 298 toward the bearing surface 310 and intersects both the inclined surface 298 and the bearing surface 310. In one embodiment, the stop surface 300 is substantially perpendicular to the tangent of the bearing surface 310 and its intersection, although other angles may be suitable. Due to the preload, arm 302 biases the engagement end 304 to engage with the notch 296, and particularly with surfaces 298 and 300.When the pinion 338 rotates relative to the spur gear 339 in one direction, the arm 302 and its end 304 eventually engage with the stop surface 300 as the arm is radially biased inward. Then, when the sprocket 21 rotates in one direction of rotation (i.e., the pedaling direction), the drive gear 338 drives the driven gear or spur gear 339. When the user pedals backward, the chain 4 and sprocket 21 rotate in opposite directions of rotation, wherein the end of the arm 302 slides continuously and intermittently outward along the ramp 298 as the arm 302 is biased out of engagement, and then slides along the bearing surface 310, so that the drive gear or pinion 338 does not cause the driven gear or spur gear 339 to rotate. In this manner, when the sprocket 21 rotates in the first rotation direction, the spring finger 292 or the bent arm 302 is biased to engage with the notch 296 and the stop surface 300, and wherein, when the sprocket 21 rotates in the second rotation direction, the spring finger 292 or the bent arm 302 is biased to disengage from the notch 296 by means of the inclined surface 298 and the bearing surface 310, so that the generator 50 is deactivated or does not rotate.

[0073] Reference Figure 14 , Figure 15 , Figure 31 , Figure 39 as well as Figure 41The belt tensioner 320 can be coupled to the cage assembly and is operable to adjust the tension of the belt 43. The belt tensioner 320 includes: a first fastener 51 or a first generator screw that threadedly engages with a first boss 24a formed on the outer cage 24; and a second fastener 52 or a second generator screw that threadedly engages with a second boss 24b formed on the outer cage 24. The first fastener 51 passes through an opening in the generator base 46, and the second fastener 52 passes through a washer 53 that overlaps with the edge of the generator base 46. The belt tensioner 320 also includes a belt tension adjustment member 54 that acts between the outer cage 24 and the generator 50, particularly between the outer cage 24 and the base 46. In one embodiment, the adjustment member 54 can be configured as a locating screw that is threadedly received in a boss 24b formed in the outer cage 24. One end 322 of the adjustment member 54 abuts against the generator base 46, for example, its edge. In operation, to adjust the tension of belt 43, fasteners 51 and 52 are slightly loosened. Then, adjusting member 54 can be actuated, for example, by threaded engagement of upper boss 24b, causing adjusting member 54 to push against the bias force or tension of belt 43 and against the edge of generator base 46. Base 46 can be slightly rotated about fastener 51 to generate greater tension in belt 43. When the desired belt tension has been reached, fasteners 51 and 52 can be tightened to fix the belt tension at the desired level. Adjusting member 54 may be provided with an anti-loosening device, such as an anti-loosening screw, to prevent adjusting member 54 from loosening over time.

[0074] Reference Figure 15 and Figure 19 Multiple generator wires 49 (three are shown in the figure) extend from the generator stator 48. The generator wires 49 are electrically connected to a generator printed circuit board (generator PCB) 55, which is mounted to the housing 200. In one embodiment, the generator PCB 55 is secured to the outer retainer 24 using screws 56; however, the PCB 55 can be secured using adhesive, snap-fit, or other suitable fasteners. Alternatively, the PCB 55 can be secured to the cover 23.

[0075] Reference Figure 15 , Figure 16 as well as Figure 19 The main printed circuit board (main PCB) 57 is secured relative to the housing 200 (e.g., cover 23) by means of a first mounting screw 80 and a second motor retainer mounting screw 78. (See reference...) Figure 16The main PCB 57 includes various electronic components, including but not limited to a power / energy storage device 57d configured as a supercapacitor in one embodiment, a motor driver 57f, an encoder 57e, a switch 57b, an LED 57c, multiple spring pins 57a, and a microcontroller 402. (See reference...) Figure 15 The spring pin 57a ​​of the main PCB 57 is in electrical contact with the generator PCB 55. An energy storage device 57d (e.g., a supercapacitor) is also coupled to and movable with the cage assembly 9, and specifically, fixed to the main PCB 57. The generator 50 generates energy, which is transferred to and stored in the energy storage device 57d. In one embodiment, the energy storage device 57d includes at least one capacitor, shown as two supercapacitors. In other embodiments, the energy storage device may include one or more batteries, such as rechargeable batteries.

[0076] Reference Figure 4 , Figure 8 and Figure 15 Function button 19 is attached to housing 200, specifically cover 23, via button holder 59. A resilient seal 58 is disposed between button holder 59 and the surface of cover 23 or housing 200. For example, when a user presses function button 19, button 19 actuates switch 57b of main PCB 57. In other functions, function button 19 can be used to wirelessly pair transmission 180 with other system components (e.g., a gear shifter that can be remotely positioned on a lever). LED lens 20 can be a transparent lens, fixed in a hole located in cover 23 or holder 24 (i.e., housing 200). LED lens 20 is positioned such that LED 57c of main PCB 57 illuminates through lens 20 and is visible to the user. LED 57c can be used to indicate system status. For example, but not limited to, LED 57c is used when wirelessly pairing transmission 180 with other system components (e.g., a gear shifter). For example, LED 57c can also be used to indicate other system statuses such as battery life. It should be understood that the generator can be positioned in other locations on the cage.

[0077] like Figures 38 to 41As shown, in one embodiment, an electrical connector or conductor 502, configured as a wire or cable, connects the electrical output of generator 50 to energy storage device 504 or energy storage device 508. Energy storage device 504 may be a high-capacity capacitor 516, one or more batteries 518, and / or a combination of capacitors and / or batteries. The high-capacity capacitor 516 can be used for rapid charging and discharging, while the battery 518 or multiple batteries can be used for long-term energy storage, thus preparing the transmission for shifting without first charging the capacitors. Energy storage device 504 may include or house an electronic board 520 that controls the charging and discharging of one and / or both of the capacitor 516 and / or battery 518. Figures 38 to 42 As shown, energy storage devices 504 and 508 can be mounted or directly coupled to components spaced apart from the cage assembly 9, meaning the cage assembly 9 can move relative to the energy storage devices 504 and 508. A flexible electrical conductor 502 connects the generator system or the cage assembly 9 to the energy storage device 504 or its bracket 506. In one embodiment, as... Figure 41 As shown, the flexible conductor passes through an opening 510 in the cage assembly (e.g., formed in the outer cage 24) and then into the interior of the housing, where it can be electrically connected to the generator 50 via a plate 57. When the cage assembly 9 moves relative to the energy storage devices 504, 508, or their brackets 506, the flexible conductor 502 bends or deforms to accommodate the relative movement. In this way, the energy storage devices 504 and 508 can be positioned on any other part or component of the transmission spaced apart from or away from the cage assembly 9, and they do not move along the same path as the cage assembly 9. In this way, the terms "spaced apart" and "away" refer to two components that are not directly connected, such that one component can, but not necessarily, move along the same path as the other component, whether by translation or rotation. For example, as... Figures 38 to 42 As shown, energy storage devices 504 and 508 can be mounted on or directly connected to the base 5. Alternatively, as... Figure 42 As shown, the energy storage device can be mounted on or directly connected to the linkage device 186, which includes any one of link 6 and link 7 or a movable component 8. Figure 42In another embodiment shown, energy storage devices 504 and 508 may not be mounted on any component of the transmission, but rather on the frame 2, such as the chainstay or top fork, or attached to a mounting bracket of the frame using fasteners 10. Alternatively, in other embodiments, the energy storage devices may be configured to be sequentially mounted to any one of the base 5, linkage 186, movable member 8, or frame 2, or multiple energy storage devices may be simultaneously mounted on one or more of the base, linkage, movable member, and / or frame, wherein each of the multiple energy storage devices is connected to the generator system and / or motor via one or more conductors, for example, by means of connection to the generator and / or motor via plate 57. In this manner, and in these embodiments, energy storage devices 504 and 508 may be spaced apart from or remotely mounted to the cage assembly 9.

[0078] like Figure 39 As shown, a flexible electrical conductor can be connected to an intermediate bracket 506, which can be coupled to any of the base 5, the coupling assembly 500 including the linkage 186 or the movable member 8, or the frame 2. The bracket 506 can detachably and releasably receive an energy storage device 508, such as a battery or capacitor, and can charge or not charge the energy storage device 506. The bracket may include one or more connectors (e.g., tabs, clips, and / or ribs) that engage the energy storage device, for example, using a snap-fit ​​mechanism. The energy storage device 508 coupled to the bracket may include a standard battery that cannot be recharged by the generator. In this way, the user can choose to use a conventional high-capacity battery or a generator-rechargeable storage device, such as a battery or capacitor. The board 520 can control the charging of the capacitor 516 and / or the rechargeable battery 518, and / or the discharging of the battery (rechargeable or rechargeable) and / or the capacitor to power the motor 60. Board 520 can communicate with main board 57 to control the charging and discharging of the energy storage device. For example... Figure 39 As shown, the flexible conductor 502 can be guided from the outside to the transmission component, or the flexible conductor 502' can be guided from the inside through at least a portion of the transmission component, for example through the internal portion of the coupling assembly 500 including the linkage 186 and / or the movable member 8. The bracket 506 may include or incorporate an energy storage device 506 such as a capacitor or a rechargeable battery, and is configured to connect to and engage an auxiliary energy storage device 508, which may be rechargeable or non-rechargeable.

[0079] Electric motor and shift drive system:

[0080] Figure 17 and Figure 18 A motor retainer assembly 79, including a motor 60, is depicted. In one embodiment, the motor is coupled to a retainer assembly 9 and is movable together with the retainer assembly 9 in opposite first and second directions. The motor 60 is operable to move the retainer assembly 9 relative to the base member 5 and the frame 2 in opposite first and second directions (e.g., in inner and outer lateral directions). A shift drive system 330 is coupled between the motor 60 and the linkage 186, wherein the shift drive system includes an input terminal from the motor 60 and an output terminal coupled to the linkage 186.

[0081] The electric motor 60 (e.g., a DC motor) includes a first drive pinion 65 fixed to an output shaft 334, which defines the input end of the shift drive system. The electric motor 60 is fixed to a motor retainer 61 by means of at least one fastener 62 (e.g., a pair of screws). One end of the first drive shaft 63 is received in a hole in the motor retainer 61. A first drive spur gear 66 is coaxially fixed to a second drive pinion 67 having a plurality of teeth (e.g., twenty (20) teeth), and the first drive spur gear 66 and the second drive pinion 67 rotate together about the first drive shaft 63. The first drive pinion 65 has a plurality of teeth (e.g., twelve (12) teeth) circumferentially spaced around the periphery of the pinion and meshes with a plurality of teeth (e.g., forty-eight (48) teeth) circumferentially spaced around the periphery of the first drive spur gear 66 to provide a 4:1 gear ratio. An encoder gear 71 having a plurality of teeth (e.g., thirty-eight (38) teeth) has a cylindrical recess in which an encoder magnet 72 is received. The encoder magnet 72 is fixed relative to the encoder gear 71. The encoder gear 71 has a long cylindrical end portion that is rotatably received in a hole located in the motor retainer 61. The encoder gear 71 engages with the first drive spur gear 66 and is axially held by a retaining clip 73. (Refer to...) Figure 19 The motor retainer assembly 79 is secured to the cover 23 or the outer retainer 24, i.e., the housing 200, using one or more fasteners (e.g., a first motor retainer mounting screw 77 and a second motor retainer mounting screw 78). The encoder magnet 72 is positioned adjacent to the encoder 57e of the main PCB 57. Wiring electrically connects the motor 60 to the main PCB 57.

[0082] Reference Figure 19The shift drive system 330 includes a gear support plate 74 positioned relative to the housing 200 by two locating pins 76 protruding from the cover 23 and secured by screws 75. The gear support plate 74 supports one end of the aforementioned first drive shaft 63. The second drive shaft 64 has a first end received in an opening in the cover 23 and a second end supported by the gear support plate 74. A second drive spur gear 68 is coaxially fixed to a third drive pinion, wherein the two gears rotate together as a unit about the second drive shaft 64. The second drive spur gear 68 has a plurality of teeth (e.g., 48) meshing with a plurality of teeth (e.g., 20) on the second drive pinion 67 to provide a gear ratio of 2.4:1. A third spur gear 70 having a plurality of teeth (e.g., 42) engages with a third drive pinion having a plurality of teeth (e.g., 18) to provide a gear ratio of 2.33:1. In one implementation, the shift drive system has a total gear ratio of 4*2.4*2.33 = 22.4:1, although other gear ratios may be appropriate.

[0083] Reference Figure 19 , Figure 20 as well as Figure 24 The shift drive system 330 has an output end that has a second rotational speed lower than the first rotational speed of the input end or motor 60 and shaft 334, determined by the overall gear ratio. In one embodiment, the output end is configured as a guide screw 81, which is coaxially fixed to a third spur gear 70. The guide screw 81 is rotatable in opposite first and second rotational directions and threadedly engaged with a crank arm 92. The crank arm 92 is responsive to rotation of the guide screw 81 in opposite first and second rotational directions and moves in opposite first and second axial directions. As explained further below, the crank arm 92 is coupled to a linkage 186. In one embodiment, the guide screw 81 is partially threaded along its length. A guide screw bearing 83 is received in a recess formed in a cover 23 or housing 200. An adjustable bearing 84 is threadedly received in a movable member cover 93, which is fixed to the movable member 8 by fasteners (shown as three screws 94). The guide screw 81 is radially supported near its first end by a guide screw bearing 83 and radially supported at its second end by an adjustable bearing 84. The axial thrust load of the guide screw 81 is reacted in a first direction by a thrust element 82 received in a recess in the outer retainer 24, and in a second direction by the surface of the adjustable bearing 84. The adjustable bearing 84 can be screwed into a movable member cover 93 to substantially eliminate any axial “playback” of the guide screw 81. Preferably, the adjustable bearing 84 includes a nylon locking element on its threaded portion to prevent movement after it has been set to the desired position.

[0084] Reference Figure 7 as well as Figures 20 to 22 The cage shaft 85 is secured to the cover 23 and the housing 200 using fasteners (e.g., six screws 86). Alternatively, the cage shaft 85 can be secured to the cover 23 by overmolding or other means. See reference. Figure 22 The cage shaft 85 has two keying features 85a that project radially inward from the inner diameter of the cage shaft 85. The cage shaft 85 is rotatably received in a hole coaxial with axis B in the movable member 8 and is axially held to the movable member 8 by a retaining ring 87. A thrust washer 88 is disposed between the retaining ring 87 and the surface of the movable member 8. Alternatively, the thrust washer 88 may be replaced by a gasket of variable thickness, which can be used to substantially eliminate any axial clearance between the cage shaft 85 and the movable member 8.

[0085] Reference Figure 20 , Figure 21 and Figure 23 The guide nut 91 has a threaded inner diameter and a first end 91b with a spherical shape. A keyway 91a is formed as a groove along the length of the outer diameter of the guide nut 91. The threads of the guide nut 91 are thread-engaged with the threads of the guide screw 81, and the keying feature 85a of the cage shaft 85 is slidably received in the keyway 91a of the guide nut 91. Rotation of the guide nut 91 relative to the cage shaft 85 is prevented by the arrangement of the key and keyway. Therefore, rotation of the guide screw 81 causes translation of the guide nut 91 along axis B.

[0086] Reference Figures 20 to 21 , Figure 25 , Figure 26 as well as Figure 27 The crank arm 92 has a cylindrical recess 92a, a first hole 92b, and a second hole 92c. The crank arm 92 is rotatably connected to a fourth pin 18 at the second hole 92c. The spherical end 91b of the guide nut 91 engages with the cylindrical recess 92a of the crank arm 92. The crank arm 92 includes a slot 92d that cuts through the cylindrical recess 92a and provides clearance for the elongated cylindrical portions of the guide nut 91 and the guide screw 81. Thus, the contact between the guide nut 91 and the crank arm 92 is maintained between the spherical portion 91b of the guide nut 91 and the cylindrical recess 92a of the crank arm 92; in one embodiment, this contact is preferably the only contact between those components.

[0087] Reference Figures 26 to 29The fourth pin 18 passes through the hole 99d of the drive element 99. In one embodiment, the drive element 99 can be secured to the fourth pin 18 by a locating screw 100, which threadedly engages with the threaded hole 99e of the drive element 99 and engages with the flat surface 18a formed on the fourth pin. The drive pin 97 is received in the hole 92b of the crank arm 92 and secured to the crank arm 92 by a locating screw 104. The drive pin 97 extends into the recess 99a of the drive element 99. The protector spring sleeve 96 is a cylindrical sleeve coaxially positioned relative to the fourth pin 18. The protector spring 95 is a torsion spring positioned coaxially with the protector spring sleeve 96. The first end of the protector spring 95 engages the crank arm 92, and the second end of the protector spring 95 engages the surface 99c of the drive element 99. The protector spring 95 surrounds... Figure 20 The axis (C) shown in the diagram biases the surface 99b of the drive element 99 against the drive pin 97 in a clockwise direction.

[0088] Reference Figures 27 to 29 The outer link 6 is secured to the fourth pin 18 by a fastener (e.g., a locating screw 101), which engages with a flat portion 18b formed on the fourth pin.

[0089] Reference Figure 29 Fastener 102 (e.g., screw) is threaded into the end of fourth pin 18. Protector spring 95 is in a “free” or loose state before engaging drive pin 97 disposed in recess 99a of drive element 99. A tool such as a screwdriver tip can be engaged with fastener 102 (e.g., by inserting the tool into the screw) and then actuated to rotate fourth pin 18 counterclockwise about axis (C) as shown. Since fourth pin 18 is secured to drive element 99, drive element 99 rotates with pin 18. Surface 99c of drive element 99 biases or pushes the end of protector spring 95 to load or wind protector spring 95 from a “free” or loose state to a preloaded state. Drive pin 97 can then be slid into engagement with recess 99a of drive element 99. The tool can be removed, wherein the biasing force of protector spring 95 biases surface 99b of drive element 99 clockwise about axis C against drive pin 97.

[0090] Reference Figure 20 The retainer spring 90 is formed as a torsion spring, with its first end disposed and engaged in a groove formed in and engaged with the movable member 8. The second end of the spring 90 engages with the cover 23 and is disposed in a recess located in the cover 23. Figure 1 As shown, the cage spring 90 is arranged to rotate clockwise about axis B to bias the cage assembly 9 in order to tighten any looseness in the chain 4.

[0091] Refer again Figure 20 The clutch spring 89 is shown having a plurality of coils, for example, seven coils in one embodiment. The inner diameter of a first plurality of coils (e.g., approximately the first five coils) is wound around the cylindrical surface of the movable member 8. The inner diameter of a second plurality of coils or a single auxiliary coil is wound around the cylindrical surface of the cage shaft 85, wherein the first plurality of coils is larger than the second plurality of (or auxiliary) coils. Because a larger number of coils are wound around the movable member 8, any relative rotation between the cage shaft 85 and the movable member 8 can cause slippage between the clutch spring 89 and the cage shaft 85, while the movable member and the clutch spring 89 remain fixed to each other. The clutch spring 89 is wound such that when the cage shaft 85 rotates counterclockwise with the cage assembly 9 about axis B, the resulting traction force of the cage shaft 85 against the clutch spring 89 causes the coils of the clutch spring 89 to tighten against the cylindrical surface of the cage shaft 85, which serves to increase friction and inhibit rotation of the cage assembly 9. When the cage shaft 85 rotates clockwise with the cage assembly 9 about axis B, the resulting traction force between the cage shaft 85 and the clutch spring 89 causes the coil of the clutch spring 89 to disengage against the cylindrical surface of the cage shaft 85. This reduces friction and allows the cage assembly 9 to rotate more easily. The clutch spring 89 is designed to prevent undesirable (counterclockwise) rotation of the cage assembly 9 about axis B, which could allow the chain 4 to become loose, for example, when a bicycle is traveling on rough terrain.

[0092] like Figures 38 to 41 As shown, the motor 60 and drive system 330 can be positioned within the movable member 8. The output from the drive system 330 causes the linkage 186 to rotate relative to the base member 5, thereby moving the movable member 8 relative to the base member 5. In other embodiments, the motor 60 and drive system 330 can be mounted on or within the linkage 186, which includes one or both of links 6 and 7.

[0093] operate:

[0094] Reference Figure 1 , Figure 2 and Figure 4 When the cyclist pedals, chain 4 drives chainring 3 clockwise, as shown in the reference. Figure 1 This causes the rear wheel to rotate. Since chain 4 is also engaged with upper sprocket 21 and lower sprocket 22, upper sprocket 21 is driven counter-clockwise, see reference... Figure 1 . Reference Figures 10 to 13 as well as Figures 38 to 41The rotation of the upper sprocket 21 or the lower sprocket 22 causes the pulley shaft 35 to rotate. Therefore, the first generator spur gear 37, which is fixed to the pulley shaft 35 in a non-rotatable manner, also rotates. (See reference...) Figure 13 , Figure 39 and Figure 41 The transmission device 250 provides rotational power to flow from the first generator spur gear 37 to the first generator pinion 38, to the second generator spur gear 39, to the second generator pinion 40, through belt 43 to the first generator pulley 41, to the second generator pulley 42, and finally to the rotor 47 of the generator 50. The rotation of the rotor 47 relative to the stator 48 generates electricity. (Refer to...) Figure 15 and Figure 16 The generated electricity flows through the wires 49 of the generator 50 to the generator PCB 55, and then through the spring pin 57a ​​into the main PCB 57. In the main PCB 57, the electricity is stored in energy storage devices 57d, 504, and 508, such as supercapacitors or one or more batteries. The energy storage devices 57d, 504, and 508 can then power the motor 60 to enable various gear shifting actions. It should be understood that the storage devices 57d, 504, and 508 can power other electrical devices and accessories, including those located away from the gearshift (e.g., but not limited to wheel speed sensors, chainring speed sensors, power meters, lights, front derailleurs, adjustable seatposts, and / or other types of bicycle accessories), or can power the motor and such auxiliary devices. In embodiments where electrical devices and accessories are located away from the storage devices, the electricity can be transmitted via various electrical connectors or conductors (e.g., wires or cables). In other embodiments, energy storage devices 504 and 508 may also be located away from the gearbox, for example, where the energy storage devices are mounted on the frame 2 or another part of the bicycle components and connected to the generator 50 using an electrical connector or conductor 502 (e.g., a wire).

[0095] It should be noted that the interfaces of pulleys 41, 42, and belt 43 produce less noise than equivalent spur and pinion interfaces. Generally, relatively slowly rotating gears do not produce as much noise that might be unpleasant to a rider, while gears rotating at high revolutions per minute (RPM) can produce high-pitched noise that might be unpleasant to a rider. Therefore, in one embodiment, a gear interface can be used for the transmission when the angular velocity is relatively low (i.e., close to the angular velocity of the upper pulley 21), while a pulley belt interface can be used when the angular velocity of the pulleys is relatively high (i.e., close to the angular velocity of the rotor 47).

[0096] To request a gear shift, the rider operates the gearshift switch on the handlebars. A wireless signal can be transmitted from the gearshift. This wireless signal is received by an antenna and radio on the main PCB 57. The signal is processed by the main PCB 57, and the controller provides power from power / energy storage devices 57d, 504, 508 (e.g., supercapacitors or batteries) to the motor 60. (See reference...) Figure 17 and Figure 19 Mechanical power from the motor 60 or the input of the shift drive system is transmitted from the first drive pinion 65 to the first drive spur gear 66, to the second drive pinion 67, to the second drive spur gear 68, to the third drive pinion, to the third drive spur gear 70, to the guide screw 81, or to the output end.

[0097] When the rider requests a shift to a larger sprocket or tooth on chainring 3, power is supplied to motor 60, which rotates in the direction of the shift drive system, including drive pinions and spur gears 65 to 70, to drive third drive spur gear 70 and guide screw 81 in the first direction of rotation. Guide nut 91 is threaded into guide screw, but guide nut 91 cannot rotate relative to cage shaft 85. Therefore, referring to... Figure 20 The directional guide nut 91 moves axially along axis B in the upward direction. The spherical end 91b of the guide nut 91 drives the crank arm 92 counterclockwise around axis C of the fourth pin 18. (See reference...) Figure 28 and Figure 29 Drive pin 97 engages surface 99b of drive element 99, causing drive element 99 to rotate counterclockwise about axis C of fourth pin 18. Since drive element 99 is fixed to fourth pin 18, fourth pin 18 also rotates counterclockwise. Since fourth pin 18 is also fixed to outer link 6, outer link 6 also rotates counterclockwise about axis C to drive linkage 186 in the inward direction of the bicycle, which drives movable member 8 and cage assembly 9 in the inward direction. Since chain 4 engages with upper sprocket 21 of cage assembly 9, chain 4 is also driven in the inward direction to shift chain 4 to the next larger sprocket or tooth of chainring 3.

[0098] When the rider requests a shift to a smaller sprocket or tooth on chainring 3, power is supplied to motor 60, which rotates in the direction of the shift drive system, including drive pinions and spur gears 65 to 70, to drive third drive spur gear 70 and guide screw 81 in a second direction of rotation, thereby driving guide nut 91 to move axially along axis B in a downward direction. Figure 21In this configuration, the spherical end 91b of the guide nut 91 drives the crank arm 92 clockwise around the axis C of the fourth pin 18. The crank arm 92 drives the protector spring 95 clockwise around the axis C of the fourth pin 18. The protector spring 95 drives the drive element 99 clockwise around the axis C of the fourth pin 18. Since the drive element 99 is fixed to the fourth pin 18, the fourth pin also rotates clockwise. Since the fourth pin 18 is fixed to the outer link 6, the outer link 6 also rotates clockwise around the axis C to drive the parallelogram linkage 186 in the outward direction of the bicycle, which drives the movable member 8 and the cage assembly 9 in the outward direction. Since the chain 4 engages with the upper sprocket 21 of the cage assembly 9, the chain 4 is also driven in the outward direction to shift the chain 4 into the next smaller sprocket or tooth of the chainring 3.

[0099] Reference Figure 16 , Figure 17 and Figure 19 The encoder 57e on the main PCB 57, together with the encoder magnet 72, is used to provide position feedback for the movable member 8, the cage assembly 9, and the sprocket 21. The encoder gear 71 engages with a first drive spur gear 66. When the first drive spur gear 66 rotates, it causes the encoder gear 71, along with the encoder magnet 72, to rotate about the axis of the encoder gear 71. Therefore, the encoder magnet 72 rotates relative to the encoder 57e. The encoder 57e outputs a signal representing the angular position of the encoder magnet 72 relative to the encoder 57e. During a shift operation, the encoder magnet 72 undergoes multiple complete rotations. The controller on the main PCB 57 counts the number of complete rotations of the encoder magnet 72. Knowing the number of rotations the encoder magnet 72 has undergone and its current angular position relative to the encoder 57e, the controller can calculate the current position of the movable member 8 relative to the bicycle frame 2 and via the extended chainring 3. A predetermined shift table has multiple values, each corresponding to a shift position of the transmission 180. When the encoder magnet 72 rotates during a shifting operation, the value corresponding to the current position of the movable member 8 is compared with the target value in the table, wherein the controller is capable or operable to determine when the movable member 8 has reached its target position (i.e., the gear selected by the rider).

[0100] To establish a known relationship between the angular position value output by encoder 57e and the physical position of movable member 8, a homing procedure can be executed. In this procedure, transmission 180 positions crank arm 92 at a reference position and sets the corresponding angular position indicated by encoder 57e as the reference value. (Refer to...) Figure 20The guide nut 91 is driven downward to drive the crank arm 92 clockwise around axis (C) until contact between the crank arm 92 and the movable member cover 93 prevents further clockwise rotation of the crank arm 92. This is the reference position, representing the furthest outermost position the derailleur can be moved to. The corresponding position value output by encoder 57e is created as the reference value. In one embodiment, this return procedure is performed at the factory when the derailleur 180 is assembled, but the procedure can also be performed after the derailleur 180 is installed on the bicycle. The return procedure can be performed even when the movable member 8 is physically prevented from moving (i.e., when the rider is not pedaling and the presence of chain 4 prevents the movement of the movable member). For example, in the case where the movable member 8 is physically prevented from moving, the outer link 6, the fourth pin 18, and the drive element 99 will also be prevented from moving. However, the crank arm 92 can still be rotated clockwise by winding the protector spring 95. Figure 20 The position shown is such that even if the movement of the movable member 8 is blocked, the crank arm 92 can be driven to its reference position and can be returned to its original position.

[0101] The protector spring 95, along with its associated components, also functions as a safety clutch during a collision. When the movable member 8 or outer link 6 is subjected to an external force pushing the movable member 8 in the inward direction, the drive element 99 will be driven counterclockwise around axis C. If the external force exceeds the preload of the protector spring 95, the drive element 99 will wrap around the protector spring 95, thereby preventing excessive force from being transmitted to the guide nut 91. When the external force is removed, the protector spring 95 will unwind to its previous position.

[0102] Control system and generator input / rectification:

[0103] Reference Figure 34The diagram illustrates one embodiment of a control system for a generator 50, an electric motor 60, and a shift drive system 330. As described above, sprocket 21 or sprocket 22 rotates the generator 50, which generates an alternating current (AC) voltage across each set of coils within the generator 50. These coils are connected to a rectifier circuit 400 formed by diodes D1, D2, D3, D4, D5, and D6, which rectifies the voltage into direct current (DC). The generator 50 can be configured as a permanent magnet brushless generator having multiple sets (e.g., three sets) of coils preferably internally connected in a star configuration, although a delta configuration may also be suitable. The generator 50 can also consist of any number of coils, as long as these coils are connected to the rectifier circuit 400 that generates the DC voltage. The generator 50 can also be a brushed generator that mechanically generates DC voltage. Capacitors C3 and C4 are incorporated into the circuit to create better impedance matching with the energy storage device 57d (e.g., storage capacitors C1 and C2).

[0104] Phase sensing:

[0105] Diodes D7 and D8, along with resistors R9 and R10, are used to sense the speed and direction of generator 50. This speed and direction can be used to determine the speed and direction of rotation of sprocket 21, thereby determining the speed and direction of rotation of chain 4. The memory contains information about the number of teeth on each sprocket or tooth of chainring 3. As described above, encoder 57e provides a signal that allows the controller (e.g., microcontroller 402) to understand which gear is currently indexed. Microcontroller 402 is programmed using information about the number of teeth on the chainring. If the bicycle has more than one installed chainring, the front chainring shifting system communicates the currently selected chainring to the rear derailleur 180 when the front chainring is changed. Using all this information, the controller 402 on the rear derailleur 180 knows how fast the bicycle is traveling and how fast the rider is turning the crank. The bicycle speed and cadence information can be used to execute an automatic shifting algorithm that maintains the gear ratio at the rider's preferred gear ratio. The diode anode of each diode-resistor pair is connected to a signal input on microcontroller 402 and to a digital voltage source Vdd via a pull-up resistor. When the corresponding phase voltage of diode D7 or D8 drops below VDD, the diode will conduct to ground and register a low signal to microcontroller 402. When the phase voltage exceeds VDD, the diode will not conduct, and the signal to microcontroller 402 will be clamped to VDD through R9 or R10. Figure 35A and Figure 35BAs shown, if generator 50 rotates clockwise or counterclockwise, the pulse sequence for each phase is different, and any variation in frequency is based on how fast generator 50 is rotating and therefore how fast the rider is pedaling. These sequences can be identified by the timing of microcontroller 402. If the pulse train corresponds to forward or reverse pedaling, microcontroller 402 can modify the charging behavior; for example, it may be desirable to disable charging or deactivate the generator while, for example, using the clutch to reverse pedaling to reduce looseness in chain 4, which could cause the chain to disengage from the sprocket. It may be desirable to allow charging only above a certain rider cadence, and / or it may be desirable to always enable charging while not pedaling to reduce chain slap, etc. One way to determine the direction of rotation is to look at the pulses read by microcontroller 402 for two adjacent generator coils. The phases of the L2 and L3 signals are 120 degrees (time) apart, then 240 degrees, and this sequence repeats as generator 50 rotates at a constant speed. The order of the pulses indicates the direction. For example, an L2 signal is followed by 120 degrees, then an L3 signal by 240 degrees, and another L2 signal may indicate positive pedaling ( Figure 35A ), where the L3 signal is followed by 120 degrees, then the L2 signal by 240 degrees, and then another L3 signal will indicate the reverse pedaling (see Figure 35B The actual generator speed is unlikely to be completely constant in reality; however, since the generator 50 rotates multiple times per crank revolution, it will be valid to analyze the relative spacing of the L2 and L3 sequences.

[0106] Charging control:

[0107] Reference Figure 34The P-channel MOS transistor Q2 connects the rectified voltage from generator 50 to storage device 57d (e.g., capacitors C1 and C2) and disconnects the rectified voltage from generator 50 to storage device 57d for charging. Resistors R6, R7, R8 and n-channel MOS transistors Q3 and Q4 allow microcontroller 402 to control the on / off state of Q2 using digital outputs, and also set Q2 to a default state if the voltage across C1 and C2 is too low to power microcontroller 402. Microcontroller 402 senses the charging state of capacitors (C1, C2) as voltage through a voltage divider formed by R11 and R12. Microcontroller 402 disconnects Q2 when the maximum capacitor charging state is reached and turns Q2 on when the capacitor charging state drops below a certain threshold. Microcontroller 402 can use pulse width modulation or another variable duty cycle modulation scheme to quickly turn Q2 on and off to adjust the effective charging rate to reduce torque at the sprocket. The proportional control of the Q2 switch modulation can be implemented by the microcontroller, such that a low charge state of the storage capacitors (C1, C2) will cause Q2 to turn on at or near the 100% charge rate, but a charge state near the maximum capacitor change can occur at a very low charge rate. Modulation of the charging signal allows for a smooth transition between not charging and charging, preventing the user from experiencing sudden torque changes. As a redundancy for the microcontroller 402 to disconnect Q2 when fully charged, the voltage sensing integrated circuit (IC) 408 can also disable Q2 if the capacitor's charge state exceeds a certain threshold voltage. The threshold voltage at which the voltage monitor disables Q2 is preferably slightly higher than the voltage at which the microcontroller 402 will stop charging. If the IC or microcontroller 402 issues a signal to disable charging, Q2 will turn off regardless of the state of other control signals. This redundant charging control is useful in situations where the microcontroller 402 cannot perform charging control functions (e.g., during microcontroller firmware updates). Additional redundant overvoltage protection for the capacitors may optionally be provided by integrated circuit (IC) U4, which may be an LM317 type parallel regulator. This IC senses the capacitor voltage and, if it exceeds a safe voltage threshold, switches on Q1 to short-circuit the capacitor to ground, causing it to discharge until the voltage falls below the safe threshold. Capacitors C1 and C2 are preferably of the electrochemical double-layer (ELDC) type, also known as supercapacitors. The schematic diagram shows two capacitors C1 and C2 connected in series, but any number of series capacitors can be used. The number of series capacitors should match the preferred operating voltage of the motor 60 and the open-circuit voltage of the generator 50. Capacitor 57d can also be arranged in multiple parallel-series arrangements to achieve different voltage and capacitance values. Capacitors C1 and C2 can be of other types, such as ceramic, electrolytic, tantalum, or future capacitor technologies.The functions of capacitors C1 and C2 can also be achieved using rechargeable batteries such as lithium-ion or lithium-polymer batteries, or some future battery technologies. The function of resistors R1 and R2 is to balance the charge between the two capacitors over time, ensuring that one capacitor does not accumulate an excess charge compared to the other.

[0108] Winding encoder:

[0109] In one embodiment of the transmission 180, a linkage 186 actuated by a guide screw 81 may be required to count multiple turns of a sensing element (e.g., a radially magnetized magnet). This turns counting can be performed by the encoder 57e or by a microcontroller 402, noting when the encoder winding exceeds its maximum value. The absolute position of the linkage 186 is determined by moving the transmission to one end of its possible travel and detecting a stall condition on the electric motor 60. Ideally, this motion limit detection is performed only once during manufacturing, so the encoder system must store the number of complete rotational turns between power cycles of the device. In one embodiment, the transmission 180 features a non-removable power supply 57d (capacitors C1, C2), meaning the power cannot be abruptly disconnected.

[0110] Reference Figure 36 When the bicycle is not being ridden, the capacitor voltage may slowly decrease, possibly even dropping to 0, due to internal leakage, the balancing resistor, and the low power requirements of the microcontroller 402. When the voltage of capacitor 57d approaches a threshold voltage (e.g., 3.5V), or slightly exceeds the minimum voltage required to power encoder 57e (e.g., 3.3V), the microcontroller 402 can save the current winding count to memory. Figure 36 As shown, when the voltage of capacitor 57d begins to increase again due to the bicycle being pedaled, the microcontroller will turn on / off when the voltage reaches a first threshold voltage (e.g., 1.8V), and the encoder will turn on / off when the voltage reaches a second threshold voltage (e.g., 3.3V). At a certain voltage threshold (e.g., 3.7V), higher than the voltage at which the transmission retains the last winding count but lower than the threshold voltage at which the microcontroller 402 allows a shift (e.g., 4.2V), the microcontroller 402 will read the current encoder position and add the last known winding count to restore its understanding of the transmission's absolute position. Above the shift threshold voltage (e.g., 4.2V), a shift may occur.

[0111] Reference Figure 34The circuit may include a voltage regulator 410 to provide a voltage source lower than the voltage of capacitor 57d to supply the microcontroller 402, encoder 57e, motor controller, and other ICs in the circuit. The voltage regulator 410 may be integrated into one of the microcontroller 402 or other ICs, which in turn provides a lower voltage to other components in the circuit. The voltage regulator 410 is preferably a switching buck type, but it may also be a linear type or a buck-boost type. If the capacitor voltage does not exceed the maximum rating of the microcontroller or other ICs, the voltage regulator 410 may be omitted.

[0112] Switch SW1 connects to the digital input of microcontroller 402 to provide user input to the system, such as wireless pairing functionality. More or fewer switches can be used for various user inputs.

[0113] Optional LEDs D9, D10, and D11 can be provided to indicate to the user the status of the transmission 180, such as pairing status or capacitor charging status. These can be omitted. The LEDs can be configured to illuminate in various colors.

[0114] The motor driver 57f is operably connected to the microcontroller 402 via appropriate control signals or a set of control signals (e.g., analog control signals, digital control signals such as I2C, SPI, UART, etc.), or it can be controlled by pulse-width modulated digital signals.

[0115] Microcontroller 402 may include a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), analog circuitry, digital circuitry, combinations thereof, or other processors now known or developed in the future. The processor may be a single device or a combination of devices, for example, through shared or parallel processing.

[0116] The memory can be volatile or non-volatile. The memory may include one or more of read-only memory (ROM), random access memory (RAM), flash memory, electronically erasable program read-only memory (EEPROM), or other types of memory. The memory may be removable from the transmission 180, such as a Secure Digital (SD) memory card. In certain non-limiting exemplary embodiments, the computer-readable medium may include solid-state memory, such as a memory card or other package containing one or more non-volatile read-only memories. Furthermore, the computer-readable medium may be random access memory or other volatile rewritable memory. Additionally, the computer-readable medium may include magneto-optical or optical media such as magnetic disks or magnetic tapes or other storage devices. Therefore, this disclosure is considered to include any one or more of computer-readable media and other equivalents, as well as subsequent media, in which data or instructions may be stored.

[0117] Memory can be a non-transient computer-readable medium and can be described as a single medium. However, the term "computer-readable medium" includes a single or multiple media such as centralized or distributed memory structures and / or associated caches operatively used to store one or more sets of instructions and other data. The term "computer-readable medium" should also include any medium capable of storing, encoding, or carrying a set of instructions for execution by a processor, or any medium capable of enabling a computer system to perform any one or more methods or operations disclosed herein.

[0118] In an alternative implementation, a dedicated hardware implementation, such as an application-specific integrated circuit (ASIC), a programmable logic array (PLA), and other hardware devices, can be constructed to implement one or more of the methods described herein. Applications of devices and systems that can include various implementations can broadly encompass a wide range of electronic and computer systems. One or more implementations described herein can be implemented using two or more specific interconnected hardware modules or devices with associated control and data signals, which can communicate between and through the modules, or as part of an ASIC. Therefore, this system includes software, firmware, and hardware implementations.

[0119] The communication interface provides data and / or signal communication from the gearshift to another part of the bicycle or to an external device such as a mobile phone or other computing device, as well as data and / or signal communication between the gearshift and other parts of the bicycle. The communication interface uses any operable connection to transmit data. An operable connection can be a connection in which signals can be sent and / or received, physical communication and / or logical communication can occur. An operable connection can include a physical interface, an electrical interface and / or a data interface. The communication interface can be configured for wireless communication and therefore includes one or more antennas. The communication interface provides wireless communication in any design now known or developed hereafter. Although this specification describes components and functions that can be implemented in specific embodiments with reference to specific standards and protocols, the invention is not limited to these standards and protocols. For example, standards for transmission over the Internet and other packet-switched networks (e.g., TCP / IP, UDP / IP, HTML, HTTP, HTTPS) represent state-of-the-art examples. These standards are regularly superseded by faster or more efficient equivalent standards with substantially the same functionality. Bluetooth and / or ANT+ TM Standards may also be used, or alternatively. Therefore, alternative standards and protocols that have the same or similar functions as those disclosed herein are considered equivalents.

[0120] The communication interface is configured to send and / or receive data (e.g., control signals and / or commands) to and / or from bicycle components (e.g., the front gear shifter and / or derailleur 180). The component communication interface uses any operable connection to transmit data. An operable connection can be a connection in which signals can be sent and / or received, physical communication and / or logical communication can occur. Operable connections can include physical interfaces, electrical interfaces and / or data interfaces. The communication interface provides wireless communication in any design now known or developed hereafter. Although this specification describes components and functions that can be implemented in specific embodiments with reference to particular standards and protocols, the invention is not limited to these standards and protocols. For example, standards for transmission on the Internet and other packet-switched networks (e.g., TCP / IP, UDP / IP, HTML, HTTP, HTTPS) represent state-of-the-art examples. These standards are regularly superseded by faster or more efficient equivalent standards with substantially the same functionality. Therefore, alternative standards and protocols with the same or similar functionality as those disclosed herein are considered their equivalents.

[0121] According to various embodiments of this disclosure, the methods described herein can be implemented using software programs executable by a computer system, such as microcontrollers and circuits. Furthermore, in exemplary, non-limiting embodiments, implementation may include distributed processing, component / object distributed processing, and parallel processing. Alternatively, virtual computer system processing may be configured to implement one or more of the methods or functions described herein.

[0122] Computer programs (also known as programs, software, software applications, scripts, or code) can be written in any form of programming language, including compiled or interpreted languages, and can be deployed in any way, including as standalone programs or as modules, components, subroutines, or other units suitable for use in a computing environment. A computer program does not necessarily correspond to a file in a file system. A program can be stored as part of a file that holds other programs or data (e.g., one or more scripts stored in a markup language document), in a single file dedicated to the program in question, or in multiple coordinating files (e.g., a file storing one or more modules, subroutines, or code sections). A computer program can be deployed to execute on one or more computers located at a single site or distributed across multiple sites and interconnected by a communication network.

[0123] The processes and logic flows described in this specification can be executed by one or more programmable processors, which execute one or more computer programs to perform functions by manipulating input data and generating output. These processes and logic flows can also be executed by dedicated logic circuits, and the devices can be implemented as dedicated logic circuits, such as FPGAs (Field-Programmable Gate Arrays) or ASICs (Application-Specific Integrated Circuits).

[0124] As used in this application, the terms “circuit system” or “circuit” mean all of the following: (a) a hardware circuit implementation only (e.g., an implementation only in analog and / or digital circuits); and (b) a combination of circuitry and software (and / or firmware), such as (if applicable): (i) a combination of processors, or (ii) a portion of processor / software (including digital signal processors), software, and memory that work together to enable a device such as a mobile phone or server to perform various functions); and (c) a circuit such as a microprocessor or a portion thereof that requires software or firmware to operate, even if the software or firmware does not exist physically.

[0125] The definition of "circuit system" applies to all uses of the term in this application, including in any claim. As a further example, as used herein, the term "circuit system" will also cover only the implementation of a processor (or processors) or a portion thereof, and its (or accompanying) software and / or firmware, as well as other electronic components. The term "circuit system" will also cover, for example, and if applicable to elements of a particular claim, baseband integrated circuits or application processor integrated circuits for mobile computing devices, or similar integrated circuits in servers, cellular network devices, or other network devices.

[0126] For example, processors suitable for executing computer programs include general-purpose and special-purpose microprocessors, as well as any one or more processors in any type of digital computer. Typically, a processor receives instructions and data from read-only memory or random access memory, or both. The basic components of a computer are a processor for executing instructions and one or more memory devices for storing instructions and data. Typically, a computer also includes one or more mass storage devices (e.g., magneto-optical disks, magneto-optical disks, or optical disks) for storing data, or is operatively coupled to receive data from or transfer data to one or more mass storage devices (e.g., magneto-optical disks, magneto-optical disks, or optical disks) for storing data. However, a computer does not necessarily need to have such a device. Furthermore, a computer can be embedded in another device, such as a mobile phone, a personal digital assistant (PDA), a mobile audio player, a global positioning system (GPS) receiver, or an electricity meter system, to name just a few. Computer-readable media suitable for storing computer program instructions and data include all forms of non-volatile memory, media, and memory devices, which, as examples, include: semiconductor memory devices and flash memory devices such as EPROMs and EEPROMs; magnetic disks such as internal hard disks or removable disks; magneto-optical disks; and CD-ROMs and DVD-ROMs. Processors and memory can be supplemented by dedicated logic circuits or incorporated into dedicated logic circuits.

[0127] The illustrations of the embodiments described herein are intended to provide a general understanding of the structures of various embodiments. These illustrations are not intended as a complete description of all elements and features of devices and systems utilizing the structures or methods described herein. Many other embodiments may become apparent to those skilled in the art upon review of this disclosure. Other embodiments may be used and obtained from this disclosure, allowing for structural and logical substitutions and changes without departing from the scope of this disclosure. Furthermore, these illustrations are representative only and may not be drawn to scale. Some scales in the illustrations may be exaggerated, while others may be minimized. Therefore, this disclosure and the accompanying drawings should be considered exemplary rather than restrictive.

[0128] While this specification contains numerous details, these details should not be construed as limiting the scope of the invention or any potentially claimed content, but rather as a description of features of particular embodiments of the invention. Certain features described in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments. Furthermore, although features may be described above as functioning in certain combinations, even when initially claimed, in some cases one or more features from a claimed combination may be removed from that combination, and the claimed combination may refer to a sub-combination or a variation of a sub-combination.

[0129] Similarly, although operations and / or actions are depicted in the accompanying drawings and described herein in a specific order, this should not be construed as requiring these operations to be performed in the specific order shown or sequentially, or requiring all illustrated operations to be performed to obtain the desired result. In some cases, multitasking and parallel processing may be advantageous. Furthermore, the separation of various system components in the above embodiments should not be construed as requiring such separation in all embodiments, and it should be understood that any described program components and systems can generally be integrated into a single software product or packaged into multiple software products.

[0130] One or more embodiments of this disclosure may be referred to individually and / or collectively as the “invention” herein, for convenience only, and are not intended to voluntarily limit the scope of this application to any particular invention or inventive concept. Furthermore, although specific embodiments have been shown and described herein, it should be understood that any subsequent arrangements designed to achieve the same or similar purpose may replace the specific embodiments shown. This disclosure is intended to cover any and all subsequent adaptations or variations of the various embodiments. Combinations of the above embodiments and other embodiments not specifically described herein will be apparent to those skilled in the art upon review of the description.

[0131] This abstract of disclosure is provided to comply with the requirements of Section 1.72(b) of Title 37 of the Federal Regulations and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. Furthermore, in the foregoing detailed description, various features may be grouped together or described in a single embodiment for the purpose of simplifying this disclosure. This disclosure should not be construed as reflecting an intention that the claimed embodiments require more features than expressly listed in each claim. Rather, as reflected in the following claims, the subject matter of the invention may address fewer features than any of the disclosed embodiments. Therefore, the following claims are incorporated into the detailed description, wherein each claim independently defines a separately claimed subject matter.

[0132] The above detailed description should be considered illustrative, not restrictive, and it should be understood that the following claims, including all equivalents, are intended to define the scope of the invention. The claims should not be construed as limited to the described order or elements unless otherwise stated. Therefore, all embodiments within the scope and spirit of the following claims and their equivalents are claimed as part of the invention.

[0133] Although embodiments have been described for illustrative purposes, those skilled in the art will understand that various modifications, additions, and substitutions are possible without departing from the scope and spirit of this disclosure. Therefore, the foregoing description is intended to be illustrative rather than restrictive, and it should be understood that all equivalents and / or combinations of embodiments and examples are intended to be included in this description.

[0134] Although certain parts, components, features, and methods of operation and use are described herein in accordance with the teachings of this disclosure, the scope of this patent is not limited thereto. Rather, this patent covers all embodiments taught in this disclosure that fall fully within the scope of permitted equivalents.

Claims

1. A bicycle derailleur, the bicycle derailleur comprising: A base component that can be mounted to a bicycle frame; A cage assembly, the cage assembly being movably connected to the base member by means of a coupling assembly; A generator system, which is coupled to the cage assembly and is movable together with the cage assembly; At least one energy storage device is mounted on at least one of the base member and / or coupling assembly, wherein the energy storage device is electrically connected to the generator system. The bicycle derailleur also includes an electric motor coupled to the cage assembly and capable of moving together with the cage assembly in opposite first and second directions, wherein the electric motor is rotatable with the cage assembly and operable to move the cage assembly in the opposite first and second directions.

2. The bicycle derailleur according to claim 1, wherein, The connection assembly includes a linkage device rotatably connected to the base member and a movable member rotatably connected to the linkage device, wherein the cage assembly is rotatably connected to the movable member, and wherein the energy storage device is mounted on at least one of the base member, the linkage device, and / or the movable member.

3. The bicycle derailleur according to claim 2, wherein, The energy storage device is mounted on the base component.

4. The bicycle derailleur according to claim 1, wherein, The energy storage device is electrically connected to the generator system using a flexible conductor.

5. The bicycle derailleur according to claim 4, wherein, The flexible electrical conductor is guided internally through at least a portion of the connecting assembly.

6. The bicycle derailleur of claim 4, further comprising a bracket directly mounted to at least one of the base member and / or coupling assembly, wherein, The bracket is electrically connected to the generator system using the flexible electrical conductor, and the energy storage device is releasably coupled to the bracket.

7. The bicycle derailleur according to claim 1, wherein, The energy storage device includes a capacitor.

8. The bicycle derailleur according to claim 1, wherein, The energy storage device includes a battery.

9. The bicycle derailleur according to claim 8, wherein, The battery can be recharged by the generator system.

10. The bicycle derailleur according to claim 1, wherein, The generator system supplies power to the electric motor.

11. The bicycle derailleur according to claim 10, wherein, The generator system includes a generator that generates energy stored in the energy storage device, and wherein the electric motor is electrically connected to and powered by the energy storage device.

12. A bicycle derailleur, the bicycle derailleur comprising: A base component that can be mounted to a bicycle frame; A cage assembly, the cage assembly being movably connected to the base member by means of a coupling assembly; A generator system, which is coupled to the cage assembly and is movable together with the cage assembly; An energy storage device spaced apart from the cage assembly, wherein the cage assembly is movable relative to the energy storage device; and A flexible electrical conductor that electrically connects the energy storage device and the generator system. The bicycle derailleur also includes an electric motor coupled to the cage assembly and capable of moving together with the cage assembly in opposite first and second directions, wherein the electric motor is rotatable with the cage assembly and operable to move the cage assembly in the opposite first and second directions.

13. The bicycle derailleur of claim 12, further comprising a linkage rotatably connected to the base member and a movable member rotatably connected to the linkage, wherein, The cage assembly is rotatably coupled to the movable member, and the energy storage device is mounted on at least one of the base member, the linkage device, and / or the movable member.

14. The bicycle derailleur according to claim 13, wherein, The energy storage device is mounted on the base component.

15. The bicycle derailleur according to claim 12, wherein, The flexible electrical conductor is guided internally through at least a portion of the connecting assembly.

16. The bicycle derailleur of claim 12, further comprising a bracket releasably coupled to the energy storage device, wherein, The bracket is electrically connected to the flexible conductor.

17. The bicycle derailleur according to claim 12, wherein, The energy storage device includes a battery.

18. The bicycle derailleur according to claim 17, wherein, The battery can be recharged by the generator system.

19. The bicycle derailleur according to claim 12, wherein, The generator system supplies power to the electric motor.

20. The bicycle derailleur according to claim 19, wherein, The generator system includes a generator that generates energy stored in the energy storage device, and wherein the electric motor is electrically connected to and powered by the energy storage device.

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