Abstract: A cart for connecting or attaching to a wheelchair is provided to assist a wheelchair user to more easily collect and move items, such as groceries. In certain embodiments the cart is further defined as a shopping cart.

Abstract: Systems for controlling the speed and direction of vehicles such as tractors, including vehicles that have low to zero turning radius capability. Systems include steering and speed coordination systems that control the direction and speed of rotation of vehicle drive units.

Abstract: A wheelchair includes a chair frame mechanism and two pedal mechanisms. The chair frame mechanism includes a frame body and two pedal-mounting rods. The pedal mechanisms are respectively mounted to the pedal-mounting rods. Each of the pedal mechanisms includes a pivot unit sleeved on the corresponding pedal-mounting rod and having has a guide groove, a positioning unit mounted to the corresponding pedal-mounting rod and engaging the guide groove, and a pedal unit mounted to the pivot unit.

Abstract: A novel robotic platform is presented with the characteristics of only two wheels establishing a stable and unstable axis. Stability of the unstable axis is provided by controlling the steering while driving in the direction of the stable axis. Stability while stopped is provided by setting one or both of the wheels oblique to the stable axis and controlling the traction angle of the wheels. High control authority is thus provided while standing and while underway without sensitivity to the driving surface.

Abstract: A convertible running bike capable of selectively converting from a non-motorized configuration to a motorized configuration may include a front fork rotatably engaged with a front wheel, a handle bar rotatably engaged with the front fork for steering the bike, a frame and a seat connected to the frame.

Abstract: A steering system equipped with a linear electric actuator includes: a casing, a shaft slidably coupled to the casing with respect to a sliding axis and provided with an end that protrudes externally from said casing, an electric motor, which is housed in the casing and provided with a stator and a rotor that is axially hollow and coaxial with the shaft, in which the rotor is operable in rotation with respect to an axis of rotation parallel to the sliding axis, a nut screw integrated in rotation with the rotor of the motor and provided with an internal thread, the nut screw includes a first cylindrical portion and a second cylindrical portion, axially arranged side by side, a joint adapted to make the first cylindrical portion and the second cylindrical portion integrated in rotation, and a helical groove surface integrated with the shaft and coupled to the internal thread.

Abstract: A vehicle, comprising: a forward frame portion; a rear frame portion; and a motion control system comprising a first motion control device that movably interconnects the forward frame portion and the rear frame portion and a second motion control device that movably interconnects the forward frame portion and the rear frame portion, wherein the first motion control device connects to the rear frame portion at a first location, and the second motion control device connects to the rear frame portion at a second location that is a fixed distance from the first location, and the motion control system, by virtue of a geometric arrangement of the motion control system relative to the forward frame portion and the rear frame portion, adopts, in response to a forward acceleration of the rear frame portion resulting from a driving force imparted by a wheel supported by the rear frame portion, an operating state in which forces imparted onto the motion control system by a tensioning of a drivetrain element that transfe

Abstract: An electric bike comprises a front wheel, a rear wheel, a seat for a rider to sit on, a frame that supports the front wheel, the rear wheel and the seat, a driving device that provides moving energy to the electric bike and a braking device that reduces the speed of the electric bike. The driving device comprises one or more electric motors. The electric bike further comprises a pedal assembly that receives muscle power from the rider. The pedal assembly comprises a pedal axis and two pedals fixed to the pedal axis. The torque from the pedal assembly is not mechanically transferred to the front wheel or the rear wheel.

Abstract: Disclosed is a tricycle component, and in particular to a reverse tricycle support structure in which two steering wheels are arranged in the front and a driving wheel is arranged in the back. The reverse tricycle support structure includes a frame, a front two-wheel fixing bracket and a rear flat fork. The frame includes a frame rear section, a frame middle section and a frame front section, the frame front section is fixedly connected to the front two-wheel fixing bracket, the frame rear section is movably connected to the rear flat fork, the front two-wheel fixing bracket is fixed on two front wheels, an upper end of a rear center single shock absorption member is hingedly fixed on the frame, and a lower end of the rear center single shock absorption member is hingedly fixed on the rear flat fork.

Abstract: A motor vehicle, in particular a motorcycle or a motorcycle-like vehicle, includes a wheel suspension supporting the vehicle frame with a spring assembly. The wheel suspension is designed to compress in a compression direction and to rebound in an opposite rebound direction. The wheel suspension includes a lowering device which can be selectively actuated by a pressure fluid in an active state to apply a preload to the wheel suspension to alter a ride height of the motor vehicle.

Abstract: A drop-deck trailer for hauling heavy loads (e.g., jumbo glass panes) positioned on each side of the drop-deck and which minimizes trailer twisting/leaning is provided. The drop deck includes a plurality of transversely-mounted A-frames that are coupled through an anti-torsion structure (ATS) to each other and to at least two trailer main beams at an elevated front deck and at a rear portion of the drop-deck for transferring the load from each side of the trailer and into the at least two main beams. The ATS includes tie bars for connecting the tops of the A-frames together, a front support for connecting the forward-most A-frame to the main beams and an end support for connecting the rear-most A-frame to the main beams. The ATS minimizes twisting/leaning of the trailer without adding any significant weight to the trailer itself. This permits the transport of increased payload on the trailer, including a continuous tarp for covering the payload during transport.

Abstract: A fuel tank includes a fuel tank main body portion, a first supporting pillar portion, and a second supporting pillar portion. The first supporting pillar portion is provided at a vehicle rear side of an inner side of the fuel tank main body portion. The second supporting pillar portion is provided at a vehicle front side of the first supporting pillar portion at the inner side of the fuel tank main body portion and is longer in the vehicle vertical direction than the first supporting pillar portion is in the vehicle vertical direction.

Abstract: A platform trailer includes a neck reinforcement structure located in the neck region to provide for a reduced height in the neck region of the trailer to increase the cargo-carrying capacity of the trailer. The height in the neck region of the trailer is less than 30% of the height in the rest of the trailer. A fifth wheel plate includes a main portion secured to both the first and second beams of the trailer. The fifth wheel plate includes a bifurcated tail portion including a first tail portion connected to the first beam and a second tail portion connected to the second beam. A kingpin is connected to the fifth wheel plate and is adapted to be engaged by an associated tractor fifth wheel.

Abstract: A fifth wheel hitch may include at least one support frame capable of engaging with a towing vehicle. The fifth wheel hitch may further include a cross-member attached to the support frame and an isolation system operatively coupled with the cross-member. The isolation system may include a beam engaged with the cross-member about a first axis, where rotation of the beam about the first axis is dampened via a cross-member isolator. The isolation system may also include a skid plate engaged with the beam about a second axis, where rotation of the skid plate about the second axis is dampened via a wing isolator.

Abstract: An electric power steering apparatus that easily obtains desired steering torques to a steering angle without being affected by a road surface state and changes of mechanism characteristics of a steering system due to aging. The apparatus includes a target steering torque generating section to generate a target steering torque based on at least one of EPS/vehicle information, a converting section to convert the target steering torque into a target torsional angle, and a torsional angle control section to calculate the current command value based on the target torsional angle, a steering angle, a torsional angle of a torsion bar and a motor angular velocity.

Abstract: A steering gear for a vehicle includes a linear drive having at least one displacement element, which is displaceable substantially along a vehicle longitudinal axis of the vehicle and which is fastenable to a steering drag link of the vehicle, in which the linear drive is configured to convert a rotational movement of a steering column of the vehicle into a movement of the displacement element substantially along the vehicle longitudinal axis. Also described is a related vehicle having the steering gear, a method for actuating the steering gear, and a method for steering the vehicle.

Abstract: Embodiments of the present invention describe a recreational vehicle spindle, including a spindle body having one or more sockets in the spindle body, and an upper attachment mechanism in contact with the spindle body and adapted to attach to a steering component. The spindle also includes a lower attachment mechanism in contact with the spindle body and adapted to attach to a ski or wheel. The one or more sockets are adapted to each receive a ball and stud forming one or more ball joints.

Abstract: A worm shaft (46) has a first end section (52) and a second end section (54) extending from a worm section (50). A first drive system (98) is in driving engagement with the first end section (52) of the worm shaft (46), and a second drive system (104) is in driving engagement with the second end section (54) of the worm shaft (46) for redundantly steering a vehicle. The worm section (50) of the worm shaft (46) is disposed between the first drive system (98) disposed on the first end section (52) of the worm shaft (46) and the second drive system (104) disposed on the second end section (54) of the worm shaft (46). A lost motion connection (82) is disposed between an input shaft (76) and said worm shaft (46).

Abstract: The invention is directed to a stair-climbing remote control utility wagon. The wagon provides a forward chassis arm and a rear chassis arm which are interleaved with each other, providing a broad, stable base. The forward chassis arm terminates in a forward chassis, and the rear chassis arm terminates in a rear chassis. The forward chassis and the rear chassis provide powerful, battery-powered electric motors and caterpillar tracks. The forward chassis arm and rear chassis arm are fully articulated by servomotors, providing telescoping segments which may be extended and retracted with servomotors, and the motor housing of the forward chassis arm further provides infrared sensors, which are controlled by a microprocessor to enable the wagon to climb a flight of stairs. The forward chassis arm and rear chassis arm may also be used to elevate the bed of the wagon to any height, up to 48 inches.

Abstract: An adjustable spacer structure of a bicycle is used for adjusting a height of a stem disposed on a steering tube. The adjustable spacer structure includes a first spacer and a second spacer. The first spacer includes a body and a positioning portion. The body has a ring shape and a first opening, and the steering tube is movably disposed through the first opening. The positioning portion is disposed on the body. The second spacer has a ring shape and a combining portion. The combining portion is detachably connected to the positioning portion, and there is a second opening formed between the first spacer and the second spacer. The stem is abutted against the first spacer.