A Steerable Crank System including a Steerer Base firmly connected to the chassis/mainframe of a machine, said Steerer Base containing and supporting Grooved Cog Wheel situated in-line and parallel to the power driving direction in a manner that allows said Grooved Cog Wheel to rotate around its axis and drive the machine power, said Steerer Base containing and supporting a Fork in a manner that allows said Fork to rotate around its main axis and by that rotation movement it controls the steering, said Fork containing a 2.sup.nd axis supporting and housing a Crank Shaft in a manner that allows said Crank Shaft to rotate around its own axis, on said Crank Shaft attached a Butterfly Connector, said Butterfly Connector coupling together said Crank Shaft and Grooved Cog Wheel.

A Steerable Crank System including a Steerer Base firmly connected to the chassis/mainframe of a machine, said Steerer Base containing and supporting Grooved Cog Wheel situated in-line and parallel to the power driving direction in a manner that allows said Grooved Cog Wheel to rotate around its axis and drive the machine power, said Steerer Base containing and supporting a Fork in a manner that allows said Fork to rotate around its main axis and by that rotation movement it controls the steering, said Fork containing a 2.sup.nd axis supporting and housing a Crank Shaft in a manner that allows said Crank Shaft to rotate around its own axis, on said Crank Shaft attached a Butterfly Connector, said Butterfly Connector coupling together said Crank Shaft and Grooved Cog Wheel.

An electric scooter includes: an upper plate member including two roll tubes and a shaft tube pivotally connected to a standing tube and inserted into the roll tubes, the standing tube having a hooking part and a connection part disposed between the roll tubes and inserted by the shaft tube; a lower plate member including a pressing part positioning with the hooking part; two frames pivotally connected between the upper and lower plate members through bolts, each opened frame including a clip tightly covering the standing tube; a stopper disposed between the upper and lower plate members and positioning the closed frames; and a pivotal connection seat including two frame fitting members covering the tapered portions and having a quick release member, a tapered seat base having a top part combined with a cover frame of the seat cushion provided with a quick release member fixed to a positioning hole.

An electric scooter includes: an upper plate member including two roll tubes and a shaft tube pivotally connected to a standing tube and inserted into the roll tubes, the standing tube having a hooking part and a connection part disposed between the roll tubes and inserted by the shaft tube; a lower plate member including a pressing part positioning with the hooking part; two frames pivotally connected between the upper and lower plate members through bolts, each opened frame including a clip tightly covering the standing tube; a stopper disposed between the upper and lower plate members and positioning the closed frames; and a pivotal connection seat including two frame fitting members covering the tapered portions and having a quick release member, a tapered seat base having a top part combined with a cover frame of the seat cushion provided with a quick release member fixed to a positioning hole.

A ride-on vehicle, such as for a child, includes a vehicle body and one or more wheels that support the vehicle body relative to a surface. At least one of the wheels includes a hub motor arrangement that provides a drive torque for propelling the vehicle. The hub motor arrangement includes a housing defining an interior space. An axle or other mounting element(s) define an axis of rotation of the housing. Preferably, the axle or other mounting element(s) do not pass completely through the housing. A motor drives the housing through a transmission. Preferably, the motor is a standard, compact motor that is positioned on the axis of rotation and can be laterally offset from a central plane of the housing. In some embodiments, a traction element is carried directly by the housing.

A ride-on vehicle, such as for a child, includes a vehicle body and one or more wheels that support the vehicle body relative to a surface. At least one of the wheels includes a hub motor arrangement that provides a drive torque for propelling the vehicle. The hub motor arrangement includes a housing defining an interior space. An axle or other mounting element(s) define an axis of rotation of the housing. Preferably, the axle or other mounting element(s) do not pass completely through the housing. A motor drives the housing through a transmission. Preferably, the motor is a standard, compact motor that is positioned on the axis of rotation and can be laterally offset from a central plane of the housing. In some embodiments, a traction element is carried directly by the housing.

Provided is a shifting device for shifting of a bicycle gear, such as a hub gear, of a bicycle. The shifting device includes a main control unit and preferably a motor control unit. The device includes a shifting control unit for receiving shifting instructions from the main control unit or the motor control unit. The shifting control unit includes a processing unit and a memory, power receiving means, such as including an electrical connector, for receiving power from a battery of the main control unit and/or a drive motor battery of the bicycle, a shifting motor, such as an electric motor, such as a stepper motor for providing a shifting motion for driving a shifting assembly for actuating a gear actuator, the shifting assembly for transferring the shifting motion from the shifting motor to the gear actuator, and the gear actuator for transferring the shifting motion to the bicycle gear. The shifting control unit, by means of communication with and controlling by the main control unit of the bicycle, is configured as a subsystem of the bicycle. The shifting control unit shifts the bicycle gear at each time on the basis of shifting instructions from the main control unit or the motor control unit.

Provided is a shifting device for shifting of a bicycle gear, such as a hub gear, of a bicycle. The shifting device includes a main control unit and preferably a motor control unit. The device includes a shifting control unit for receiving shifting instructions from the main control unit or the motor control unit. The shifting control unit includes a processing unit and a memory, power receiving means, such as including an electrical connector, for receiving power from a battery of the main control unit and/or a drive motor battery of the bicycle, a shifting motor, such as an electric motor, such as a stepper motor for providing a shifting motion for driving a shifting assembly for actuating a gear actuator, the shifting assembly for transferring the shifting motion from the shifting motor to the gear actuator, and the gear actuator for transferring the shifting motion to the bicycle gear. The shifting control unit, by means of communication with and controlling by the main control unit of the bicycle, is configured as a subsystem of the bicycle. The shifting control unit shifts the bicycle gear at each time on the basis of shifting instructions from the main control unit or the motor control unit.

A vehicle, in particular bicycle, with a frame, a handlebar connected to the frame rotatably about a steering axis, two front wheels and a rear wheel. In order to achieve a particularly pleasant driving behavior, the front wheels are rotatably mounted in front wheel hearings rigidly connected to the frame about front wheel axles, the rear wheel being mounted rotatably about a rear wheel axle in at least one rear wheel bearing, wherein at least one rear wheel bearing is rigidly connected to a swing arm which is pivotably connected to the frame about an articulation axis, the handlebar being coupled to the swing arm in this way that a movement of the handlebar about the steering axis causes an opposite movement of the swing arm about the articulation axis.

A vehicle, in particular bicycle, with a frame, a handlebar connected to the frame rotatably about a steering axis, two front wheels and a rear wheel. In order to achieve a particularly pleasant driving behavior, the front wheels are rotatably mounted in front wheel hearings rigidly connected to the frame about front wheel axles, the rear wheel being mounted rotatably about a rear wheel axle in at least one rear wheel bearing, wherein at least one rear wheel bearing is rigidly connected to a swing arm which is pivotably connected to the frame about an articulation axis, the handlebar being coupled to the swing arm in this way that a movement of the handlebar about the steering axis causes an opposite movement of the swing arm about the articulation axis.