A vehicle includes: a vehicle body frame; a drive unit provided on the vehicle body frame and movable on a floor surface; a seat disposed above the vehicle body frame; a lift unit to raise and lower the seat between a low position and a high position; a first leg extending downward from the seat and provided with a roller at a lower end thereof; a second leg extending downward from the seat, provided with a contact member at a lower end thereof, and displaceable in an up-down direction; and a lever connected to the second leg via a transmission mechanism. When the seat is in the low position, the contact member is displaced between a use position in which the contact member contacts the floor surface and a retracted position in which the contact member is separated from the floor surface depending on a position of the lever.

An apparatus includes a frame assembly configured to be selectively connectable with a seat assembly of a wheelchair assembly once the seat assembly is selectively disconnected and removed from the wheelchair assembly. The frame assembly is also configured to be selectively connectable with spaced-apart wheel assemblies of the wheelchair assembly once the spaced-apart wheel assemblies are selectively disconnected and removed from the wheelchair assembly.

A wheelchair includes a seat, a first adjustable leg coupled to a first side of the seat, a second adjustable leg coupled to a second side of the seat, one or more turning sensors, and a control unit. The first adjustable leg includes a first leg actuator configured to extend and retract the first adjustable leg. The second adjustable leg includes a second leg actuator configured to extend and retract the second adjustable leg. The one or more turning sensors are configured to output a turning signal indicative of the wheelchair performing a turning motion. The control unit is operable to determine the wheelchair is performing the turning motion based on the turning signal, and automatically adjust a tilt angle of the seat with the first leg actuator and the second leg actuator to lean a user of the wheelchair into the turning motion.

An apparatus for moving a wheelchair, the apparatus having a base including a drive motor drivingly connected to a drive wheel and a first forwardly extending lower arm member engageable with the wheelchair when the wheelchair is in the engageable position. The first lower arm member is operable between a lowered position in which the first lower arm member is disengaged from the wheelchair and a raised position in which the first lower arm engages the wheelchair. The first lower arm member has a first stop member whereby, when the first lower arm member is in the raised position and engages the wheelchair, and when the wheelchair is on a forwardly extending declined surface, the first stop member inhibits forward motion of the wheelchair.

A wheelchair suspension comprises a frame, at least one pivot arm, at least one front caster, at least one rear caster, a stabilizing system, and a sensor. The pivot arm is coupled to the frame. The front caster is coupled to the pivot arm. The rear caster is coupled to the frame. The stabilizing system is coupled to the frame and the pivot arm. The sensor is arranged such that tipping of the frame causes actuation of the stabilizing system to at least partially resist further movement of the frame.

The present invention provides an assembly having a wheelchair and a wheelchair rigging receptacle. The wheelchair may include an appendage support rigging that is releasably affixed to the frame and configured to support a user's appendage, e.g. foot, when in use. The assembly also provides at least one receptacle configured to retain the appendage support rigging within, when the appendage support rigging is not affixed to the frame. The receptacle may comprise two opposing flexible side walls, a rear wall extending between the side walls, and a bottom extending between a lower edge of the walls to define an interior cavity between an inner surface of the wall and the base that has a width approximately equal to a width of the appendage support rigging. The receptacle also includes at least one mounting device to affix the receptacle to the anti-tip bar of the wheelchair at the rear of the seating surface.

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 such that the drive assembly and the front caster pivot arm are pivotable relative to one another.

A powered balancing mobility device that can provide the user the ability to safely navigate expected environments of daily living including the ability to maneuver in confined spaces and to climb curbs, stairs, and other obstacles, and to travel safely and comfortably in vehicles. The mobility device can provide elevated, balanced travel.

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 such that the drive assembly and the front caster pivot arm are pivotable relative to one another.

There is described a wheelchair comprising a wheelchair frame, a pair of drive wheels configured to contact a ground surface when the wheelchair is in use, each drive wheel rotating about an axis of rotation, at least one front wheel mounted to a front-end portion of the wheelchair frame, and an anti-tip assembly mounted to a rear-end portion of the wheelchair frame, which anti-tip assembly includes at least one pivot arm that is supported onto the rear-end portion of the wheelchair frame so as to be pivotable with respect to the wheelchair frame about a pivot axis. The pivot arm includes a drive wheel attachment point coinciding with the axis of rotation and providing attachment of at least one of the drive wheels and a wheelchair frame attachment point coinciding with the pivot axis and providing attachment of the pivot arm to the rear-end portion of the wheelchair frame. The anti-tip assembly further comprises a rear wheel that is provided at a distal end of the pivot arm, rearward of the drive wheels, and that is configured to contact the ground surface when the wheelchair is in use. The anti-tip assembly is configured to allow the wheelchair frame to tilt backwards into a predetermined stable titled position with the at least one front wheel in a raised position above the ground surface, while the drive wheels and the rear wheel remain in contact with the ground surface. In one embodiment, the pivot arm is attached, via the wheelchair frame attachment point, to a bracket of the wheelchair frame, which bracket is provided with an arcuate opening configured to allow passage of a drive wheel axis of the drive wheel, which drive wheel axis is coupled to the pivot arm, via the drive wheel attachment point, the arcuate opening defining a predetermined range of pivoting movement of the pivot arm with respect to the wheelchair frame.