A motor-driven chair has a central drive wheel located beneath the seat and linked so as to be aligned with the facing direction of the seat. A user turns the direction of motion by rotating the seat relative to a surrounding stabilizer assembly so as to turn the seat and the drive wheel towards a direction in which he wishes to move. A suspension arrangement maintains a desired distribution of user load between the drive wheel and the stabilizer assembly. A combination of fixed-axis wheels with castered wheels provides angular anchoring of the stabilizer assembly to facilitate the seat steering process. The entire structure is preferably foldable for easy transportation and storage.

A powered wheelchair comprises a frame and an arm assembly that includes an arm that is pivotably coupled to the frame. The arm assembly includes a wheel coupled to the arm. A drive system is coupled to the arm assembly and configured to drive a drive wheel. An arm limiter is pivotably coupled to the suspension and coupled to one or more of the arm assembly and the drive system in an engaged position. The arm limiter is configured to limit movement of the arm assembly in the engaged position.

Provided is a moving body. A control device of the moving body starts a first control processing that moves a movement part so that a posture of a base with respect to a passenger seat becomes a predetermined posture with an auxiliary grounding part lowered and grounded. The control device starts a second control processing that lifts the auxiliary grounding part with respect to the base and a third control processing that moves the movement part 2 so as to stabilize a posture of the passenger seat after a delay from the start of the first control processing.

An electric office wheelchair used as either an office chair or an electric wheelchair. The chair includes a chair back, a seat, armrests, casters, a support, a chassis, a telescopic device, and a driving device. The chair back is connected to the seat. The armrests are connected to the chair back. The upper portion of the support is connected to the seat, the middle portion of the support is connected to the chassis, and the lower portion of the support is connected to the telescopic device. The telescopic device is connected to the driving device with two electric wheels. The wheelchair is more agile than other electric wheelchairs. Moreover, the design of two wheels located directly under the seat allows the wheelchair to make a 360? turn in situ, making it more suitable for both office use and home use.

A system for use with a mobile device includes at least one sensor to sense a variable related to tilting of the mobile device and at least one activatable system in operative connection with the sensor. The at least one activatable system increases stability of the mobile device upon actuation/change in state thereof on the basis of data measured by the at least one sensor. A variable related to tilting includes variables that indicate concurrent, actual tilting as described herein as well as variables predictive of imminent tilting. Activatable systems hereof change state upon actuation or activation to increase stability of the mobile device by reducing, eliminating or preventing tilting.

A suspension for a vehicle is provided. The suspension includes, for example, a frame, at least one drive assembly and at least one caster pivot arm. The at least one drive assembly and the at least one caster pivot arm are pivotally connected to the frame at a common pivot axis such that the drive assembly and the front caster pivot arm are pivotable relative to one another.

An electric locomotion apparatus including a dynamically stabilized vehicle including two wheels, the vehicle including a pivot arranged along a longitudinal axis and rotatable about the longitudinal axis. The pivot is configured to transfer a steering control to the wheels. A seat is positioned on the vehicle, wherein the seat is configured to accommodate a user affected by motor disability of the lower limbs, the seat being tiltable sideways by a lateral shift of the user's weight. The locomotion apparatus further includes one or more transmission device arranged between the seat and the pivot, the transmission device configured to transfer a tilting movement of the seat to the pivot. A first rod and a second rod can be centrally pivoted together, the second rod pivotally fixed to the vehicle, and the seat being associated with a second end of the first rod.

An electric wheelchair frame includes a frame and a power support swayably connected to a frame. A connecting rod is swayably connected to the frame, is pivotably connected to the power support, and is movable relative to the power support in a longitudinal direction. A driving device includes a connecting seat and a power output unit. The connecting seat is pivotably mounted to the power support. The power output unit is fixed to the connecting seat and includes a driving shaft extending away from the frame and a driving wheel. When the driving wheel is moving on a bumpy road, the pivotal movement between the connecting seat and the power support increases the sitting comfort of a user in an electric wheelchair.

The present disclosure relates to a swing arm linkage (1) for a mid-wheel drive wheelchair, comprising: a first swing arm (3) having a first swing arm pivot point (3a) and a linkage member first mounting point (3b), a second swing arm (5) having a second swing arm pivot point (5a) and a linkage member second mounting point (5b), a linkage member (7) configured to be connected to the linkage member first mounting point (3b) and to the linkage member second mounting point (5b), to enable force transfer between the second swing arm (5) and the first swing arm (3), wherein the linkage member (7) has an elongated shape defining a linkage axis (A) extending between the linkage member first mounting point (3b) and the linkage member second mounting point (5b), a first straight line being formed between the first swing arm pivot point (3a) and the linkage member first mounting point (3b), and a second straight line being formed between the second swing arm pivot point (5a) and the linkage member second mounting point (5b), wherein the linkage member first mounting point (3b) and the linkage member second mounting point (5b) are so arranged relative to each other that the sum of an angle between the linkage axis and a line perpendicular to the first straight line and extending from the linkage member first mounting point and an angle between the linkage axis and a line perpendicular to the second straight line and extending from the linkage member second mounting point is constant or increasing with increasing ditch angle.

A chair-shaped hoverboard attachment may comprise at least one chair atop a platform having at least one wheel on the platform's underside, wherein the platform contains a control box and a removable hoverboard attachment element, such as a strap. In some embodiments, one or more control rods with brake controls may extend from the platform to within reach of the chair and may be configured to control the hoverboard.