A wheeled platform has a base, a plurality of wheels, and a power supply. A connector extends from the wheeled platform. A motor assembly has at least one motor mounted on the connector to couple with a stroller. A controller assembly steers the stroller. The base includes an upper surface for supporting an operator. The base forms a wheel assembly for holding the wheels. The power supply sends power to the motor assembly through the control assembly to drive the stroller.

A motorized movement device includes a frame, first and second wheels connected to the frame, and first and second motors connected respectively to the first and second wheels that are commandable by respective command signals. The motorized device also includes an inertial measuring unit configured to detect the longitudinal acceleration, pitch angular speed, and yaw angular speed of the movement device and for providing signals representative of the same. The motorized device also includes sensors for detecting speeds of the wheels and configured to provide signals representative thereof. The motorized device further includes a control unit comprising a module for estimating the slope, and longitudinal thrust exerted by a user to the device, yaw torque applied by the user. The control unit also includes a module for compensating the slope, a thrust amplifying module, a yaw torque amplifying module, and a torque allocating module.

A dray cart comprising: a foldable load frame on which a load to be moved may be supported, the load frame having protruding mounting pegs and through holes; and a wheel dolly to which wheels are mountable and formed having mounting slots for receiving the mounting pegs so that the wheel dolly may be assembled to and disassembled from the load frame.

An assisted thrust system for a carriage provided with wheels that includes a base to which a first directional wheel and a second directional wheel are fixed that are connected to the base so as to be able to rotate around a respective axis perpendicular to the base; to the base a first drive wheel and a second drive wheel are further fixed that are rotated by at least one gearmotor unit, which drives the first drive wheel by a first magnetic coupling device and the second drive wheel by a second magnetic coupling device.

An electronic pallet (e-pallet) includes a superstructure mounted to a wheeled base platform. A tether device defines an articulation angle with respect to a leading edge of the superstructure, and is grasped by an operator towing the e-pallet. A motor connected to driven road wheels transmits a drive torque to the road wheels responsive to motor control signals, including a desired yaw rate and ground speed. A speed sensor, angle sensor, and length sensor are respectively configured to determine an actual ground speed of the e-pallet, the articulation angle, and a length of the tether device. An electronic controller, in response to the input signals, generates the motor control signals using proportional-integral-derivative (PID) control logic. Coupled lateral and longitudinal dynamics control loops respectively determine the desired yaw rate and ground speed to accommodate for motion of the operator.

A weight-bearing device includes a single wheel, a frame attached to the wheel, and an electric motor attached to the frame. The electric motor is configured to rotate a first gear, connected to a second gear with a chain. The second gear is connected to the wheel. The second gear and the first gear may have a gear ratio of greater than 8:1.

Robotic vehicle and use thereof for displacing a holder for goods, which is for instance loaded with goods, which vehicle can be operated in an empty position and a loaded position, comprising of (1) moving the robotic vehicle to a position under the holder in a first direction, wherein the robotic vehicle is in the empty position, wherein a holding means is countersunk in a body of the vehicle; (2) lifting the holder, wherein the robotic vehicle lifts the holder by performing a vertical movement of the holding means relative to the wheels of the vehicle, such that the holding means comes into contact with an underside of the holder, wherein the robotic vehicle transfers to the loaded position; (3) rotating driven wheels of the robotic vehicle from the first direction to the second direction without the body of the vehicle being rotated, and (4) displacing the robotic vehicle in the loaded position in a second direction, wherein the first and second direction enclose a mutual angle of between 60 and 120 degrees, preferably 75 and 105 degrees, more preferably 85 and 95 degrees, such as a substantially right angle.

The present invention relates to a removable electric propulsion system (1) intended to be coupled to a rolling object. Propulsion system (1) comprises a frame (2) provided with at least one wheel (3) driven by an electric machine, and at least one non-driven wheel (4), a handlebar (20) and means (5) for coupling the propulsion system to the rolling object, coupling means (5) comprising means for gripping and lifting at least one wheel of the rolling object. Handlebar (20) comprises a connection with frame (2) and/or driven wheel (3). Furthermore, the connection comprises a means (12) for locking/unlocking the handlebar relative to frame (2) and/or to a driven wheel (3) from a locking position where handlebar (20) is attached to frame (2) and/or to driven wheel (3), this locked position of handlebar (20) enabling electric propulsion system (1) to be moved by means of handlebar (20), to an unlocking position enabling at least free motion of handlebar (20) relative to frame (2) and/or driven wheel (3).

The invention relates to a removable electric propulsion system (1) for a rolling object, propulsion system (1) comprising a frame (2) provided with at least one wheel (3) driven by an electric machine (10), and at least one non-driven wheel (4), and means (5) for coupling propulsion system (1) to the rolling object. In addition, coupling means (5) comprise means for gripping and lifting at least one wheel of the rolling object. Besides, propulsion system (1) comprises a seating device with a seat (51) and a backrest (50), and this seating device is foldable between a deployed position allowing a user to sit and a folded position.

The invention also relates to a method for deploying/folding the seating device of electric propulsion system (1).

A pallet sled includes a base and a pair of tines extending from the base. A load wheel supports outer ends of each of the tines. A wheel supports the base. At least one motor is configured to drive the base wheel or at least one of the load wheels for driving the pallet sled. The motor may be a hub motor inside the base wheel or the load wheel.