Abstract: A bicycle derailleur system is applied to a bicycle and includes a controller, a camera, a derailleur assembly, and the memory device that are electrically connected to the controller. The camera records a real-time video of a road ahead. When the derailleur assembly is operated to shift, the derailleur assembly sends a chain shifting signal to drive the controller to process the video captured by the camera to obtain a section of video between a predetermined time before and after the chain shifting signal. The controller stores the section of the video along with information in the chain shifting signal to the memory device, to establish a basis for image similarity comparison. When the bicycle derailleur system is operated automatically, the image similarity comparison between real-time video recorded by the camera and the sections of the videos stored in the memory device is conducted to determine whether to shift.

Abstract: A bicycle accessory mounting bracket includes a first member, a second member and a plug member. The first member has a first connecting pillar with a first sliding slot. The second member has a second connecting pillar. The plug member is inserted into the first and second connecting pillars inserted into each other through the first sliding slot and the through hole of the second connecting pillar. The plug member includes a shell, an actuating member and two abutting members. The actuating member has a wide portion and a concave portion. In the first position, the wide portion is located between the penetration holes, and the abutting members are pushed by the wide portion to enter the perforation holes. When in the second position, the concave portion is located between the penetration holes, the abutting members enter the concave portion, and the first and second connecting pillars can rotate relatively.

Abstract: A rear derailleur of a bicycle includes a fixing portion connected to a frame of the bicycle, a linkage assembly pivotally connected to the fixing portion, a moving portion pivotally connected to the linkage assembly, a chain guide assembly connected to the moving portion, a driving assembly, a rechargeable battery for providing an electrical energy required for the motor, a coil, and a wireless charging circuit for receiving an electric power of the coil for charging the rechargeable battery. The driving assembly includes a motor including and a driving gear assembly connected to the linkage assembly. The motor includes an output shaft for driving the driving gear assembly and for driving the linkage assembly to pivot via the driving gear assembly, thereby to drive the moving portion and the chain guide assembly to move. The coil receives an external charging power and is disposed on the fixing portion, the moving portion, or the linkage assembly.

Abstract: An automatic control system includes a host connected to the actuator and the inputting device of a bicycle. The actuator controls the motor to drive the mechanical structure to generate a displacement. The inputting device receives the external information by manually entering or automatically sensing via the inputting device to obtain an inputting parameter. In each riding journey of the predetermined path, the host records the inputting parameter that the controller of the actuator drives the motor based on and the time spent for the riding journey to form a riding information. When the rider rides the bicycle on the predetermined path again, the host selects one of the riding information, which has the shortest time spent for the riding journey, as an operating parameter for controlling the actuator, so that the host automatically controls the actuator based on the operating parameter to prevent the cyclist from distracting.

Abstract: A process for manufacturing a customized bicycle handle grip includes obtaining a hand shape database including a hand shape information of users. The hand shape information of each user includes a dimensional parameter including a measured value. The measured values in the hand shape database are divided into dimensional intervals, wherein a handle grip forming parameter is designed for each dimensional interval. After that, a hand shape information of a client is obtained to be compared with the hand shape information in the hand shape database to be classified into one of the dimensional intervals. The handle grip forming parameter of the one of the dimensional intervals is obtained for generating a 3D-computer-graphics of the customized bicycle handle grip based on the handle grip forming parameter. Then, define the hand shape information of the client as a restricting region and optimize the 3D-computer-graphics to obtain an optimized 3D-computer-graphics for 3D printing.

Abstract: A rear derailleur of a bicycle includes a fixing portion connected to a frame of the bicycle, a linkage assembly pivotally connected to the fixing portion, a moving portion pivotally connected to the linkage assembly, a chain guide assembly connected to the moving portion, a driving assembly, a rechargeable battery for providing an electrical energy required for the motor, a coil, and a wireless charging circuit for receiving an electric power of the coil for charging the rechargeable battery. The driving assembly includes a motor including and a driving gear assembly connected to the linkage assembly. The motor includes an output shaft for driving the driving gear assembly and for driving the linkage assembly to pivot via the driving gear assembly, thereby to drive the moving portion and the chain guide assembly to move. The coil receives an external charging power and is disposed on the fixing portion, the moving portion, or the linkage assembly.

Abstract: A transmission system of a decelerating mechanism includes a planetary gear unit including a sun gear being adjacent to the first surface and a planetary gear set and a holder including a carrier and several planetary shaft units rotatably disposed on the carrier. The carrier has a first surface and a second surface that face opposite directions. The planetary gear set has several first gears being adjacent to the first surface, respectively fitting around the planetary shaft units, and meshing with the sun gear, several second gears being adjacent to the second surface and being coaxially disposed with the first gears, and an internal gear ring meshing with the second gears. By respectively arranging the first gears and the second gears on two opposite sides of the carrier, mutual interference therebetween while turning could be avoided, and an overall volume of the transmission system could be reduced.

Abstract: A power measuring system includes a processor, a control unit, a memory unit, and a power sensor including a sensing unit and a signal processing unit correspondingly outputting an electrical signal according to a deformation of the sensing unit. The sensing unit is disposed to either a right operational part or a left operational part of a bicycle. The control unit is controlled by a user and outputs a weighting command. The processor receives the weighting command and stores the weighting command into the memory unit, and obtains a weighting parameter corresponding to the weighting command according to a reference table stored in the memory unit, and receives the electrical signal outputted from the signal processing unit, and calculates a first power value, and multiplies the first power value by the weighting parameter to get a second power value, and adds the first power value and the second power value to obtain a total power value.

Abstract: A bicycle derailleur system is applied to a bicycle and includes a controller, a camera, a derailleur assembly, and the memory device that are electrically connected to the controller. The camera records a real-time video of a road ahead. When the derailleur assembly is operated to shift, the derailleur assembly sends a chain shifting signal to drive the controller to process the video captured by the camera to obtain a section of video between a predetermined time before and after the chain shifting signal. The controller stores the section of the video along with information in the chain shifting signal to the memory device, to establish a basis for image similarity comparison. When the bicycle derailleur system is operated automatically, the image similarity comparison between real-time video recorded by the camera and the sections of the videos stored in the memory device is conducted to determine whether to shift.

Abstract: A bicycle headset includes a fixed member, wherein the headset is fixed onto a headtube of a bicycle via the fixed member. A steerer tube of a fork passes through the headtube and is connected to a fork portion. The fixed member has a first contour including a first guiding section, a second section, and a joint section that connects the first section and the second section and is located at the highest site among the first contour. A rotating member is fixed onto the steerer tube. A movable member is disposed onto the rotating member and is movable along an axial direction of the steerer tube. An elastic member urges the movable member to allow a second contour of the movable member to constantly touch the first contour of the fixed member, thereby preventing a stem connected to the steerer tube from overly turned and assisting to steer back.

Abstract: A cable routing system of a bicycle, including a stem having a receiving space and an engaging hole communicating with the receiving space, a frame, a fork, an expander, and at least one cable. A head tube of the frame has a top portion having an upper mounting hole and a bottom portion having a lower mounting hole. The fork sequentially passes through the lower mounting hole, the upper mounting hole, and the engaging hole to be connected to the stem. The expander is disposed in a steering tube of the fork and has at least one cable passage communicating with the receiving space and the engaging hole. The cable extends into the steering tube from outside by passing through the receiving space and the cable passage. An end of the cable is connected to a bicycle controller, and another end thereof is connected to a bicycle component.

Abstract: A bicycle hub includes an axle, a main body, a freehub body, and a clutch, which are engaged with the axle. The freehub body is disposed with first splines, wherein each of the first splines is defined to have a longitudinal direction. Each of the longitudinal directions obliquely intersects with an axial direction of the freehub body. The clutch is disposed with second splines, wherein the second splines are engaged with the first splines in a way that the second splines are movable along a longitudinal direction of the first splines. With such design, the clutch of the bicycle hub could be smoothly operated.

Abstract: A hub motor for a pedelec includes a hub housing, a shaft module, a stator unit including a control circuit board, a rotor unit, a freehub module, and a signal wire. The shaft module includes a shaft tube and a casing tube fitting around the shaft tube. The shaft tube has an inner circumference and an outer circumference, which are opposite, the inner circumference encircles to form a perforation. A groove is formed by recessing into the outer circumference. The casing tube fits around the shaft tube to cover the groove, thereby forming a wiring space. The freehub module includes a freehub body for sensing a rotational speed of the hub housing and an output portion electrically connected to the freehub body. The signal wire passes and is restricted in the wiring space, which prevents the signal wire from being torn. An end of the signal wire is electrically connected to the output portion, and the other end is electrically connected to the control circuit board.

Abstract: A transmission system of a decelerating mechanism includes a planetary gear unit including a sun gear being adjacent to the first surface and a planetary gear set and a holder including a carrier and several planetary shaft units rotatably disposed on the carrier. The carrier has a first surface and a second surface that face opposite directions. The planetary gear set has several first gears being adjacent to the first surface, respectively fitting around the planetary shaft units, and meshing with the sun gear, several second gears being adjacent to the second surface and being coaxially disposed with the first gears, and an internal gear ring meshing with the second gears. By respectively arranging the first gears and the second gears on two opposite sides of the carrier, mutual interference therebetween while turning could be avoided, and an overall volume of the transmission system could be reduced.

Abstract: An adjusting structure for seat post of bicycle includes an external tube. A gas lift is disposed in and engaged with the external tube. An actuator rod protrudes away from a main body of the gas lift. An internal tube is movably disposed in the external tube, and the actuator rod is engaged with an end of the internal tube. A diameter of the internal tube is greater than a diameter of the main body, so that the internal tube could be moved relative to the main body in an axial direction. A restricting structure is mounted between the main body and the internal tube and is adapted to restrict the internal tube from rotating relative to the gas lift and the external tube. Since the restricting structure is not in contact with the external tube, friction provided by the restricting structure could not deform the external tube.

Abstract: A bicycle hub includes an axle, a main body, a freehub body, and a clutch, which are engaged with the axle, wherein the clutch includes a first ratchet and a second ratchet. The first ratchet and the second ratchet are respectively engaged with the main body and the freehub body. The first ratchet has a first engaging surface, and the second ratchet has a second engaging surface facing the first engaging surface. The bicycle hub is characterized in that a minimum of number of first ratchet teeth on the first engaging surface is seventy-two, and a number of the second ratchet teeth on the second engaging surface is lesser than the number of first ratchet teeth. With such design, when the first ratchet is meshed with the second ratchet, the freehub body could stably drive the main body, and a total weight of the bicycle hub could be decreased.

Abstract: A rear derailleur of a bicycle includes a fixing portion connected to a frame of the bicycle, a linkage assembly pivotally connected to the fixing portion, a moving portion pivotally connected to the linkage assembly, a chain guide assembly connected to the moving portion, a driving assembly, a rechargeable battery for providing an electrical energy required for the motor, a coil, and a wireless charging circuit for receiving an electric power of the coil for charging the rechargeable battery. The driving assembly includes a motor including and a driving gear assembly connected to the linkage assembly. The motor includes an output shaft for driving the driving gear assembly and for driving the linkage assembly to pivot via the driving gear assembly, thereby to drive the moving portion and the chain guide assembly to move. The coil receives an external charging power and is disposed on the fixing portion, the moving portion, or the linkage assembly.

Abstract: A rear derailleur of a bicycle includes a fixing portion connected to a frame of the bicycle, a linkage assembly pivotally connected to the fixing portion, a moving portion pivotally connected to the linkage assembly, a chain guide assembly connected to the moving portion, a driving assembly, a rechargeable battery for providing an electrical energy required for the motor, a coil, and a wireless charging circuit for receiving an electric power of the coil for charging the rechargeable battery. The driving assembly includes a motor including and a driving gear assembly connected to the linkage assembly. The motor includes an output shaft for driving the driving gear assembly and for driving the linkage assembly to pivot via the driving gear assembly, thereby to drive the moving portion and the chain guide assembly to move. The coil receives an external charging power and is disposed on the fixing portion, the moving portion, or the linkage assembly.

Abstract: A rear derailleur of a bicycle includes a fixing portion connected to a frame of the bicycle, a linkage assembly pivotally connected to the fixing portion, a moving portion pivotally connected to the linkage assembly, a chain guide assembly connected to the moving portion, a driving assembly, a rechargeable battery for providing an electrical energy required for the motor, a coil, and a wireless charging circuit for receiving an electric power of the coil for charging the rechargeable battery. The driving assembly includes a motor including and a driving gear assembly connected to the linkage assembly. The motor includes an output shaft for driving the driving gear assembly and for driving the linkage assembly to pivot via the driving gear assembly, thereby to drive the moving portion and the chain guide assembly to move. The coil receives an external charging power and is disposed on the fixing portion, the moving portion, or the linkage assembly.

Abstract: A bicycle transmission device for connecting to a freehub body on a rear wheel, which has convex keys arranged radially on the periphery. The bicycle transmission device includes a connecting member, a fastener, and a cogset assembly. The connecting member includes a cylindrical body portion, connection keys protruding from a periphery of the body portion, a cut groove passing through the body portion, and first and second connecting seats located on two sides of the cut groove. The inner wall of the body portion has concave grooves corresponding to the convex keys. The fastener is adapted to be connected to the connecting seats and to pull them together. The cogset assembly includes a cogset seat and sprockets. The cogset seat has a first socket hole fitting around the connecting member and connection grooves corresponding to and adapted to be connected to the connection keys. The sprockets with different numbers of chain teeth are adapted to be connected to the cogset seat.