891results about "Chain/belt transmission" patented technology

A derailleur hanger includes a first portion and a second portion. The first portion includes a first part and a second part extending from the first part. The second part includes an axle receiving bore configured to receive a hub axle. The second portion is configured to support a derailleur. The first part includes a frame contact surface disposed in a reference plane extending perpendicular to a center axis of the hub axle in an installed state where the derailleur hanger is mounted to the hub axle. The second portion includes a first surface disposed on a first side of the reference plane. A vehicle center plane is positioned at a second side of the reference plane in the installed state. The second part is disposed on the first side in the installed state, and is disposed at least partially farther from the reference plane than the first surface.

An electric vehicle including a frame; at least one ground-engaging member operatively connected to the frame; an electric motor operatively connected to the at least one ground-engaging member; an electric powerpack supported by the frame, the powerpack including: a battery pack defining a battery cooling channel; and a plurality of battery cells housed in the battery housing; a charger defining a charger cooling channel; an inverter including an inverter cooling channel, the battery cooling channel, the charger cooling channel, and the inverter cooling channel being fluidly connected together by rigid fluid connections; radiators fluidly connected to the battery cooling channel; a cooling circuit being formed at least in part by the battery cooling channel, the charger cooling channel, the inverter cooling channel, and the at least one radiator; and a pump fluidly connected to the cooling circuit for pumping liquid coolant through the cooling circuit.

The application provides an electric derailleur, which comprises a fixed base, a driving device, a movable element, a chain guide and a connecting rod. The movable element is configured to be movable relative to the fixed base. The chain guide is rotatably connected to the movable element. The two ends of the connecting rod are pivotally connected to the movable element and the fixed base respectively. The driving device is arranged on the connecting rod. The driving device comprises a transmission shaft, which is configured to drive the movable element and the connecting rod to move relative to the fixed base. The transmission shaft is pivotally connected to the connecting rod and the movable element. The driving device further comprises a driving element, which is driven to rotate by the transmission shaft. The driving element is configured to drive the movable element and the connecting rod to move by applying force to the movable element. The electric derailleur provided by the application can improve the power transmission performance.

The disclosure relates to an electromechanical rear derailleur for coaxial assembling on a rear wheel axle. The derailleur has a base element, a pivot mechanism, and a movable element having a chain guide assembly. The chain guide assembly is connected to the movable element so as to be rotatable about a rotation axis. A blocking device permits the chain guide assembly to be established relative to the movable element. The blocking device is able to be inserted into the movable element in two different positions.

A derailleur hanger includes a first portion, a second portion, a third portion and a pin. The first portion includes an axle receiving bore for receiving a hub axle. The second portion includes a derailleur support surface for supporting a derailleur. The third portion includes a first surface facing in a first direction, a second surface facing in a second direction opposite the first direction, and a third surface facing in the first direction. The pin includes a first part coupled to the third portion, a second part projecting in the first direction from the third surface to be received in a pin receiving portion of a bicycle frame, and a frangible part disposed between the first part and the second part. The frangible part breaks relative to the first part and the second part upon application of a predetermined force or higher to the pin.

The invention relates to a propulsion system (1) for a pedal vehicle. The propulsion system (1) comprises a power unit (1) allowing the power originating from a bottom-bracket axle (2) to be combined with the power from two motors (40, 50), a first deformable transmission element (23) allowing the transmission of power to the rear wheel (73) and a casing assembly (19) enclosing particularly the first deformable transmission element (23) and the power unit (1), with the exception of part of the bottom-bracket axle (2).

A transportation device is disclosed. One aspect includes a rear assembly that further includes a rear frame, and a first rear wheel and a second rear wheel mounted to the rear frame. The rear assembly may also include a first electric motor and a second electric motor mechanically connected to the first rear wheel and the second rear wheel respectively, and an electrical power source comprising a battery, configured to power the first electric motor and the second electric motor. The transportation device may also include a front assembly that includes a saddle and a front wheel connected to the saddle via a wheel hub and a fork. An aspect includes an elastomeric torsional element connecting the front assembly and the rear assembly.

The invention relates to a rear derailleur and riding equipment, the rear derailleur comprises a base assembly, a connecting rod assembly and a guide plate assembly, the base assembly comprises a base shell, the base shell comprises a first shell and a second shell, the first shell and the second shell define a mounting inner cavity, and a driving part, an energy storage part and an electric control plate are arranged in the mounting inner cavity; the energy storage part is connected with the driving part through the electric control board, the driving part and the electric control board are sequentially arranged in the mounting inner cavity side by side in the first direction from the first shell to the second shell, and the energy storage part is arranged on one side of the driving part and the electric control board in the second direction perpendicular to the first direction; the base part assembly is high in structural compactness and integration degree, wire harnesses between the energy storage part and the electric control board and between the energy storage part and the driving part are integrated in the installation inner cavity, safety is better, and maintenance is convenient.

Methods and apparatus for a composite bicycle front sprocket are disclosed herein. One embodiment discloses a composite bicycle front sprocket assembly having an outer assembly of a first material. The bicycle front sprocket assembly also has a center assembly of a second material. The center assembly is disposed at least partially within the outer assembly. The center assembly is irremovably coupled with the outer assembly. The center assembly is irremovably coupled with the outer assembly without an external fastening device to irremovably couple the center assembly with the outer assembly.

The disclosure describes an electromechanical rear derailleur for coaxial mounting on a rear wheel axis. The rear derailleur has a base member, a pivot mechanism, a movable member having a chain guiding arrangement, and an electromechanical drive for driving the pivot mechanism. The pivot mechanism connects the base member to the movable member. The chain guiding arrangement is connected to the movable member for rotation about an axis of rotation. The base member comprises a first connection end, which can be mounted coaxially with the rear wheel axis, and a second connection end for coupling with the pivot mechanism.

The utility model discloses a chain tensioning device for a motorcycle, which relates to the field of chain tensioning and comprises rear forks symmetrically arranged on two sides of a rear wheel mechanism of the motorcycle, a sliding groove is arranged on the outer side of the left end of each rear fork, a mounting block device is connected in each sliding groove, and the mounting block devices are used for mounting the rear wheel mechanism of the motorcycle. A locking hole with an opening facing leftwards is formed in the right side of the sliding groove, a guide hole with an opening facing the inner side of the rear fork is formed in the locking hole, an adjusting bolt is installed in the locking hole, a spring ball device is installed in the guide hole, and the spring ball device is perpendicular to the adjusting bolt and abuts against the adjusting bolt. The rotating angle of the adjusting bolt is calculated according to the sound frequency by matching with scale marks on the rear fork and a pointer of the mounting block device, mutual reference is achieved, the chain tensioning adjusting precision is improved, the adjusting bolt is limited and fixed, abnormal sound generated by jumping of a steel ball is avoided, the adjusting bolt is prevented from rebounding repeatedly, and the reliability of the device is greatly improved.

A bicycle component for a bicycle freewheel unit, wherein the freewheel unit includes a rotary unit and a toothed disk device coupled with the rotary unit. The toothed disk device includes an end toothing with axial engagement components for engaging corresponding engagement components of another toothed disk device. The toothed disk device and the rotary unit are each configured as coupling components coupled to one another, and include a radial toothing each, for engaging with one another, and which are commonly rotatable. The rotary unit and the toothed disk device are movable in a peripheral direction relative to one another between a driving position and a rest position, so that prior to torque transmission starting, a coupling component is rotated in the driving direction about a clearance angle of at least 5°, until torque can be transmitted, when the two radial toothings have previously been in the rest position.

A system for a bicycle includes a plurality of controller devices. A type of controller device is the same for two or more controller devices of the plurality of controller devices. The system includes a pairing coordinator device configured to receive a respective device type identification from each controller device, and identify the type of controller device for the two or more controller devices based on the received device type identifications for the two or more controller devices. Based on the identification of the type of controller device, the pairing coordinator device is configured to update the device type identifications for the two or more controller devices, respectively, such that the updated device type identifications are different than each other. The pairing coordinator device is configured to pair only controller devices of the plurality of controller devices having different respective device type identifications with the pairing coordinator device.

A bicycle includes a suspension system of the rear wheel, where the crankset and the hub and sprocket each include at least one chainring engaged by the chain and a rotation shaft. A compensation device is interposed between the toothed plate and the shaft to allow an angular compensation stroke between them from a rest position corresponding to the absence of the pulling of the chain, to a compensation position, corresponding to a pulling action of the chain generated by the rear suspension. The compensation device includes a plurality of pairs of brake elements and respective compensation end elements where at least one shock-absorbing element is operationally interposed between at least one pair capable of deforming only in correspondence with a final portion of the compensations stroke and between at least another pair where at least one limiting element is interposed to limit the maximum deformation of the shock-absorbing element.

Snowmobile transmission, including a housing with a cover, an input shaft and an output shaft arranged inside the housing, and a chain transmission drive including a chain connecting a drive sprocket arranged on the input shaft to a driven sprocket arranged on the output shaft, a reverse gear axle about which a reverse gear sprocket freely rotates also arranged inside the housing, the reverse gear sprocket engaging with the chain, and a reverse gear engaging with a movable gear arranged on a grooved sleeve of the input shaft, which is movable by tilting an inner switching fork and being driven by an axle with a lever, an adjusting rod, an outer switching fork, wherein rotation of the outer switching fork is restricted by a removable sector attached to the housing cover, and an adjusting screw arranged on the housing, abutting against a support sleeve and fixed by a cotter pin.

To improve the strength of the screw threads. [Solution] The bicycle power transmission device comprises a first rotating body, a second rotating body, an elastic member, a stopper member, and a first nut. The first rotating body has a stopper surface facing in the circumferential direction. The second rotating body is arranged to be rotatable relative to the first rotating body. The elastic member elastically connects the first rotating body and the second rotating body. The stopper member is attached to the second rotating body. The stopper member has a stopper portion and a first threaded portion. The stopper portion faces the stopper surface in the circumferential direction. The first threaded portion is integrally formed with the stopper portion and extends in the axial direction. The first nut is screwed onto the first threaded portion.

The invention discloses an electronic rear derailleur and a manpower vehicle. The electronic rear derailleur comprises a base component, a movable component, a connecting rod assembly and a chain guide. The base component is mounted on a frame along a mounting axis; the movable member is movable relative to the base member; a link assembly movably connecting the movable member to the base member, the link assembly including a first link pivotally connected to the base member about a first pivot axis and a second link pivotally connected to the base member about a second pivot axis; the chain guide is movably installed on the movable component and is in transmission connection with the speed change gear disc. A motor module and a battery module are installed on the base component, the motor module is arranged in the base component, the battery module is installed on the inner side of the base component, the motor module and the battery module are both shielded or hidden by the base component, and the functional modules cannot be directly seen from the outside. Therefore, the overall structure of the rear derailleur is more compact, convex parts are reduced, and the conciseness and attractiveness of the appearance are improved.

An all-terrain vehicle (ATV) has a frame having front and rear ends, an internal combustion engine connected to the frame, the engine including a front portion and a rear portion, a single cylinder defining a cylinder axis, an air intake port defined in the front portion facing towards the front end of the frame, and an exhaust port defined in the rear portion facing towards the rear end of the frame. The ATV further has an exhaust assembly fluidly connected to the exhaust port. The exhaust assembly extends from the engine towards the rear end of the frame. The ATV further has a continuously variable transmission operatively connected to the engine, which includes a primary pulley being operatively connected to the engine, a secondary pulley, a drive belt looped around the primary and secondary pulleys, and a housing enclosing the primary pulley, the secondary pulley, and the drive belt.

A human-powered vehicle component comprises wireless communicator circuitry and electronic controller circuitry. The electronic controller circuitry is configured to receive a first signal from the additional wireless communicator circuitry via the wireless communicator circuitry. The electronic controller circuitry is configured to change the communication protocol of the wireless communicator circuitry from a second communication protocol to a first communication protocol based on the first signal in a case where the first signal includes first information indicative of the first communication protocol. The electronic controller circuitry is configured to control the wireless communicator circuitry to maintain use of the second communication protocol in a case where the electronic controller circuitry does not receive, via the wireless communicator circuitry, the first signal including the first information indicative of the first communication protocol.

A removable accessory for cancelling or reducing pedal kickback in MTB bicycles having a frame, a front and a rear wheel, a suspension of the rear wheel, a crankset with at least one front sprocket and at least one rear sprocket set to accommodate a chain drive between the front sprocket and the rear sprocket. The accessory includes a substantially rectangular supporting plate having, at one of its long sides, two holes or notches for the passage of means of attachment in corresponding receiving seats arranged around the bicycle crankset; a pulley mounted swiveling on a transverse pin attached near a free end of the plate that is cantilevered upwardly in a direction in which the pulley is engageable in the chain when the plate is mounted on the bicycle and widens the closed ring of the chain.

A bicycle includes a suspension system of the rear wheel, a crankset integral with the frame, and a hub and pinions assembly integral with the rear wheel, which are subjected to reciprocal displacement by the action of the suspension system. The crankset and the hub and pinions assembly each include at least one gear wheel engaged by the chain and a rotation shaft. Between the gear wheel and the shaft, there is operatively interposed a compensation device placed to allow a compensation angular stroke between them from a rest position corresponding to an absence of chain pull, to a compensation position, corresponding to an action of chain pull generated by the reciprocal displacement, and vice versa. The compensation device includes an adjustment system of the compensation angular stroke.

A relay unit comprises first interface circuitry, second interface circuitry, and controller circuitry. The first interface circuitry is configured to be electrically connected to an assist drive unit of a human-powered vehicle. The assist drive unit is configured to assist propulsion of the human-powered vehicle. The second interface circuitry is configured to be electrically connected to a transmission device of the human-powered vehicle. The transmission device is configured to execute a gear shifting of the human-powered vehicle. The controller circuitry is electrically connected to the first interface circuitry and the second interface circuitry. The controller circuitry is configured to receive information relating to the human-powered vehicle from a sensor configured to detect the information. The controller circuitry is configured to change a timing of the gear shifting of the transmission device based on the information.

A control device for a human-powered vehicle has an electronic controller that controls a motor that applies a propulsion force to the human-powered vehicle to assist a human driving force. The human-powered vehicle includes a transmission device. The electronic controller is configured to assist in propulsion of the human-powered vehicle with the motor in a state in which the human-powered vehicle is propelled by the human driving force. In a case where a transmission ratio of the transmission device is changed, the electronic controller decreases an assist level of the motor in accordance with the human driving force input to the human-powered vehicle, and controls the motor so that the assist level is greater for a case where the human driving force is a first human driving force than the assist level for a case where the human driving force is less than the first human driving force.

In the conventional tricycle, generally the front frame, the rear frame and the seat tube are attached to the bottom bracket that carries pedal assembly. Between the bottom bracket and the rear frame, a joint is installed such that the seat tube and the handlebar may tilt to the left or right. Thereby the rider can cancel out the unwanted centrifugal force that occurs during high speed turning and pushes him to the opposite direction of the handlebar causing a fall down accident. Between the seat tube and the rear frame is installed a tiltable angle variable mechanism. By operating a hand lever on the handlebar the rider can vary the tiltable angle of the handlebar as needed, for high speed turning or for maintaining balance at low speeds.

The present invention provides a control device for human-powered vehicles that can suppress abnormal noises, and components for human-powered vehicles. [Solution] The control device for a human-powered vehicle includes a motor, a first gear to which torque is transmitted from the motor, and a second gear that meshes with the first gear, and comprises a control unit configured to control the motor, wherein the control unit is configured to control the motor in a first control state in which, when a predetermined first condition is met, a first torque is transmitted to the first gear to suppress abnormal noise caused by backlash between the first gear and the second gear.

To provide a power transmission device for a bicycle which is suitable for a user.SOLUTION: A power transmission device 100 for a bicycle includes a first rotor 2, a pair of second rotors 3, an elastic member 4, and a stopper member 5. The pair of second rotors 3 are arranged so as to sandwich the first rotor 2 in an axial direction. The pair of second rotors 3 are removably mounted. The elastic member 4 elastically connects the first rotor 2 and the pair of second rotors 3. The stopper member 5 is arranged between the pair of second rotors 3. The first rotor 2 has opposite stopper surfaces.SELECTED DRAWING: Figure 1

The invention discloses a motor module, an electronic derailleur and a manpower vehicle. The motor module comprises a shell, a circuit board and a man-machine interface structure. The circuit board is arranged in the shell; the human-computer interface structure is arranged on the shell and is electrically connected with the circuit board, and the human-computer interface structure comprises at least one of an indicating lamp and an operation key; the plurality of first directions are defined as directions perpendicular to the thickness direction of the circuit board, and at least one of the indicator light and the operation key overlaps with the circuit board when viewed in at least one of the plurality of first directions. According to the motor module, at least one of the indicating lamp and the operation key is arranged to be overlapped with the circuit board during lateral observation, so that the optimized utilization of the internal space of the motor module is realized; because the indicating lamp or the operation key occupies the existing space of the circuit board except the thickness direction and is not completely and independently arranged in the side direction of the circuit board, the overall size of the motor module in the direction of the board surface of the circuit board is effectively controlled, and the overall size of the motor module is reduced.

A human-powered vehicle component comprises wireless communicator circuitry. The wireless communicator circuitry is configured to transmit a first wireless signal to a first additional human-powered vehicle component using a first communication protocol in response to a first user input. The wireless communicator circuitry is configured to transmit a second wireless signal to a second additional human-powered vehicle component using a second communication protocol different from the first communication protocol in response to a second user input different from the first user input.