A vehicle for the movement of a driver includes a rolling element, a carrier element supported by the rolling element, a drive arrangement supported by the carrier element and configured to drive the rolling element, and a control unit, by way of which the drive arrangement is steered in a desired travel direction depending on the inclination of the carrier element and the inclination direction of the carrier element. The vehicle is configured such that during operation of the vehicle, the driver stands freely and balances on the carrier element. In a particular embodiment, the rolling element rolling is a ball and the vehicle can be moved in any desired travel direction via the drive arrangement, with the driver being in contact with the vehicle exclusively by way of the driver's feet, and as the case may be, further by way of the driver's lower legs.

A self-balancing powered unicycle device (100) having a single hubless wheel is disclosed. The self-balancing powered unicycle device comprises: a single wheel (120); a motor adapted to drive the wheel; a balance control system adapted to maintain fore-aft balance of the unicycle device; at least one foot platform (165) for supporting a user of the unicycle device; and a casing (110) adapted to cover at least a portion of the outer rim of the wheel. The self-balancing powered unicycle device further comprises at least one energy storage device compartment (150A, 150B) protruding outward from a side of the casing (110) and adapted to house an energy storage device for powering the unicycle device.

A self-balancing powered unicycle device (100) having a single hubless wheel is disclosed. The self-balancing powered unicycle device comprises: a single wheel (120); a motor adapted to drive the wheel; a balance control system adapted to maintain fore-aft balance of the unicycle device; at least one foot platform (165) for supporting a user of the unicycle device; and a casing (110) adapted to cover at least a portion of the outer rim of the wheel. The self-balancing powered unicycle device further comprises at least one energy storage device compartment (150A, 150B) protruding outward from a side of the casing (110) and adapted to house an energy storage device for powering the unicycle device.

In a frictional propulsion device comprising a main wheel including driven rollers rotatably supported by an annular core member about a tangential direction and a pair of drive disks each carrying a plurality of drive rollers rotatable about a rotational center line at an angle with respect to both a tangential line of the drive disk and the rotational center line of the drive disk such that the drive rollers at least partly engage the driven rollers, a diameter of a drive side contact circle is smaller than a diameter of a driven side contact circle, and the drive disks are vertically offset relative to the main wheel so that only those drive rollers adjoining the main wheel are in contact with the driven rollers.

In a frictional propulsion device comprising a main wheel including driven rollers rotatably supported by an annular core member about a tangential direction and a pair of drive disks each carrying a plurality of drive rollers rotatable about a rotational center line at an angle with respect to both a tangential line of the drive disk and the rotational center line of the drive disk such that the drive rollers at least partly engage the driven rollers, a diameter of a drive side contact circle is smaller than a diameter of a driven side contact circle, and the drive disks are vertically offset relative to the main wheel so that only those drive rollers adjoining the main wheel are in contact with the driven rollers.

Disclosed is a single-wheeled balance vehicle. The single-wheeled balance vehicle includes: a wheel provided on a wheel frame, a motor transmission mechanism fixed in the wheel frame and arranged to drive the vehicle according to acquired manned mode information; a wheel cover arranged to partially cover the wheel; a skeleton arranged to reinforce mechanical strength of the wheel cover; and footboards arranged to be stepped on by both feet of a driver in driving. The wheel cover partially covers the wheel and in embodiments may be in a surface contact, so that the contact area is larger, contact stress is more dispersive, a strain is relatively small, the deformation of the wheel cover can be reduced, the possibility that a tire or a hub motor is rubbed or locked due to deformation of the wheel cover in the related art can be avoided, and safety performance can be improved.

Disclosed is a single-wheeled balance vehicle. The single-wheeled balance vehicle includes: a wheel provided on a wheel frame, a motor transmission mechanism fixed in the wheel frame and arranged to drive the vehicle according to acquired manned mode information; a wheel cover arranged to partially cover the wheel; a skeleton arranged to reinforce mechanical strength of the wheel cover; and footboards arranged to be stepped on by both feet of a driver in driving. The wheel cover partially covers the wheel and in embodiments may be in a surface contact, so that the contact area is larger, contact stress is more dispersive, a strain is relatively small, the deformation of the wheel cover can be reduced, the possibility that a tire or a hub motor is rubbed or locked due to deformation of the wheel cover in the related art can be avoided, and safety performance can be improved.

A manufacturing apparatus for a drive disk includes: an upper member and a lower member each including a base and protrusions. Each protrusion is defined by a plurality of surfaces including a first side surface inclined with respect to opposed surfaces of the drive disk and a second side surface parallel to the opposed surfaces. The first side surface of the protrusion of the upper member and the first side surface of the protrusion of the lower member are parallel to each other and face away from each other. The second side surface of the protrusion of the upper member and the second side surface of the protrusion of the lower member face away from each other. The first side surface of the protrusion of the upper member and the first side surface of the protrusion of the lower member come into contact with each other to form the slot.

A manufacturing apparatus for a drive disk includes: an upper member and a lower member each including a base and protrusions. Each protrusion is defined by a plurality of surfaces including a first side surface inclined with respect to opposed surfaces of the drive disk and a second side surface parallel to the opposed surfaces. The first side surface of the protrusion of the upper member and the first side surface of the protrusion of the lower member are parallel to each other and face away from each other. The second side surface of the protrusion of the upper member and the second side surface of the protrusion of the lower member face away from each other. The first side surface of the protrusion of the upper member and the first side surface of the protrusion of the lower member come into contact with each other to form the slot.