The power transmission system for a vehicle includes a side flex chain assembly that transmits rotational drive from a power transfer assembly to at least one direction wheel, resulting in propulsion of the vehicle. The orientation of the side flex chain in relation to the axis of the crank sprocket and the side flex chain sprocket and the convex inner face of the bushings of the side flex chain allow the side flex chain to twist when the at least one directional wheel turns left or the right without disengaging from the crank sprocket or the side flex chain sprocket. The power transmission system is designed to be used with a steering system that allows the power transfer assembly to remain substantially in the sagittal plane when steering.

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).

A human-propellable vehicle is described and comprises a chassis and a roller assembly mounted at or towards the rear of the chassis. The roller assembly is positioned to engage with a wheel of a second vehicle to permit the second vehicle to push the human-propellable vehicle.

The present invention relates to a human-propellable vehicle comprising a chassis and a footplate for receiving a rider's feet. The footplate is movably mounted to the chassis so that at least part of the footplate can be deflected up towards the rider in the event of a collision between the underside of the footplate and an object or terrain passing under the chassis.

One embodiment of an electric convenience vehicle (ECV) may include a frame, a plurality of wheels configured to support and move the frame, a user support member supported by the frame, a steering mechanism disposed toward a front portion of the ECV, a motor configured to cause at least one wheel to be propelled forward, propelled backward, or to remain in a fixed position, a throttle, when activated in a first position, may cause the motor to propel the wheel(s) in a forward direction, when activated in a second position, may cause the motor to propel the wheel(s) in a reverse direction, and a control and communications unit (CCU) disposed in front of the user support member, and configured to control operations of the motor.

An adjustable coupling device for use with a conventional wheelchair and a conventional vehicle. The wheelchair has a transverse foot support with a length. The vehicle has a support deck with a width. The coupling device is removably secured to the support deck. The coupling device is formed with a rectangular base plate. Upstanding components extending upwardly from the base plate are configured to receive and retain the transverse foot support. The width of the base plate is less than the length of the transverse foot support. The base plate has two spaced holes laterally spaced by a distance greater than the width of the support deck. A mechanism has a central section beneath the support deck and has upstanding ends extendable upwardly through the holes in the base plate. The mechanism is adapted to hold the base plate to the support deck.

The disclosure provides a wheel, drive wheel and wheel chair. The wheel includes an annular rim and a disk covering the rim on one side in an axial direction of the rim. The disk of the wheel includes a skin and a cushion member. The skin is formed of a fiber-reinforced material. The cushion member includes a cushion part and a shape retaining part. The cushion part is formed of a shock absorbing material and is disposed adjacent to the skin. The shape retaining part is formed of a fiber-reinforced material and is disposed adjacent to the cushion part.

A mobility scooter includes a first member having a first end, and a second end opposite the first end, and a rear wheel assembly coupled to the second end of the first member. The mobility scooter includes a seat assembly coupled to the first member, and a second member being transverse to the first member and having a first end coupled to the first end of the first member, and a second end opposite the first end of the second member. The mobility scooter further includes a steering column having a first end, and a second end opposite the first end of the steering column. The steering column is coupled to the second end of the second member. The mobility scooter includes a front wheel coupled to the second end of the steering column, and a handlebar coupled to the first end of the steering column.

A mobility scooter includes a first member having a first end, and a second end opposite the first end, and a rear wheel assembly coupled to the second end of the first member. The mobility scooter includes a seat assembly coupled to the first member, and a second member being transverse to the first member and having a first end coupled to the first end of the first member, and a second end opposite the first end of the second member. The mobility scooter further includes a steering column having a first end, and a second end opposite the first end of the steering column. The steering column is coupled to the second end of the second member. The mobility scooter includes a front wheel coupled to the second end of the steering column, and a handlebar coupled to the first end of the steering column.

A physiotherapeutic conveyance with a forwardly mounted wheel, a chassis relative to which said forwardly mounted wheel is mounted, a seat mounted relative to said chassis on a seating mount, a rear axle associated with a pair of outwardly disposed first and second rear wheels, and a steering assembly associated with said pair of outwardly disposed rear wheels, wherein said steering assembly comprises a steering mechanism operable to adjust the orientation of the rear wheels.