A drive system for a side mounted cycle wheel, comprising a wheel hub for mounting the side mounted cycle wheel; a motor drive for driving the side mounted cycle wheel, the motor drive comprising an electric motor and a planetary gear reduction assembly positioned at least partially within the wheel hub and comprising one or more planetary gears; and, a rotary wheel hub bearing rotatably coupling the wheel hub to the motor drive, wherein the rotary wheel hub bearing is positioned laterally between the electric motor and the planetary gears.

A drive system for a side mounted cycle wheel, comprising a wheel hub for mounting the side mounted cycle wheel; a motor drive for driving the side mounted cycle wheel, the motor drive comprising an electric motor and a planetary gear reduction assembly positioned at least partially within the wheel hub and comprising one or more planetary gears; and, a rotary wheel hub bearing rotatably coupling the wheel hub to the motor drive, wherein the rotary wheel hub bearing is positioned laterally between the electric motor and the planetary gears.

The present invention relates to an electric drive system for a bike comprising a portable electric friction drive device and a bike bracket. A first drive device attachment point is located at a rear part of the friction drive device. A second drive device attachment point is located between the front part of the friction drive device and the rear part of the friction drive device. An inclination control arrangement is configured to control the inclination of the imaginary line between the second drive device attachment point and a contact point of the drive wheel by adjusting the tilt of the friction drive device over the second drive device attachment point. The bike has at least one wheel, comprising the electric drive system, wherein the drive wheel is arranged to be contactable to the tire of said wheel at said contact point.

The present invention relates to an electric drive system for a bike comprising a portable electric friction drive device and a bike bracket. A first drive device attachment point is located at a rear part of the friction drive device. A second drive device attachment point is located between the front part of the friction drive device and the rear part of the friction drive device. An inclination control arrangement is configured to control the inclination of the imaginary line between the second drive device attachment point and a contact point of the drive wheel by adjusting the tilt of the friction drive device over the second drive device attachment point. The bike has at least one wheel, comprising the electric drive system, wherein the drive wheel is arranged to be contactable to the tire of said wheel at said contact point.

The present invention relates to an electric kickboard in which an impact absorbing device is installed, and more particularly, to an electric kickboard including an impact absorbing device to support a weight of a user standing up by allowing the impact absorbing device to sufficiently absorb an impact when a seat is vibrated during riding by using elasticity of springs having different spring constants and including a self-power generating drive at one side thereof to produce electricity using vertical vibrations during riding and accumulate the produced electricity, thereby improving an energy efficiency.

The present invention relates to an electric kickboard in which an impact absorbing device is installed, and more particularly, to an electric kickboard including an impact absorbing device to support a weight of a user standing up by allowing the impact absorbing device to sufficiently absorb an impact when a seat is vibrated during riding by using elasticity of springs having different spring constants and including a self-power generating drive at one side thereof to produce electricity using vertical vibrations during riding and accumulate the produced electricity, thereby improving an energy efficiency.

An electrical assistance device for a bicycle includes an electrical machine, a drive roller, an actuatable positioner, and a controller. The electrical machine includes a support arm and a rotor shaft, which carries the drive roller via a free wheel. The support arm is mounted on the bicycle by a pivot shaft, which pivots between a drive position and a separated position. The actuatable positioner releasably holds the support arm in the separated position. The controller controls operation of the electrical machine and is able to cause the electrical machine to produce a motive torque in a direction toward a wheel of the bicycle driven in forward movement. The controller also is able to deliver an electrical pulse to the electrical machine to produce a reaction torque in a direction opposite to the motive torque to cause the support arm to pivot, causing actuation of the positioner.

An electrical assistance device for a bicycle includes an electrical machine, a drive roller, an actuatable positioner, and a controller. The electrical machine includes a support arm and a rotor shaft, which carries the drive roller via a free wheel. The support arm is mounted on the bicycle by a pivot shaft, which pivots between a drive position and a separated position. The actuatable positioner releasably holds the support arm in the separated position. The controller controls operation of the electrical machine and is able to cause the electrical machine to produce a motive torque in a direction toward a wheel of the bicycle driven in forward movement. The controller also is able to deliver an electrical pulse to the electrical machine to produce a reaction torque in a direction opposite to the motive torque to cause the support arm to pivot, causing actuation of the positioner.

A kick-scooter having an electric-motorized drive, a footboard, a rear wheel arranged on the footboard, a steering assembly, and a front wheel connected to the steering assembly to pivot in unison with the steering assembly about an inclined steering assembly axis.

A kick-scooter having an electric-motorized drive, a footboard, a rear wheel arranged on the footboard, a steering assembly, and a front wheel connected to the steering assembly to pivot in unison with the steering assembly about an inclined steering assembly axis.