An adjustable back support for a mobility device includes a first adjustable back support assembly including a first support member and a second support member, and a second adjustable back support assembly. The first support member is moveably connected to the second adjustable back support assembly, the first support member being configured to pivot relative to the second adjustable back support assembly relative to a first axis of rotation, and the second support member is moveably connected to the first support member, the second support member being configured to pivot relative to the first support member relative to a second axis of rotation that is not parallel to the first axis of rotation.

An adjustable back support for a mobility device includes a first adjustable back support assembly including a first support member and a second support member, and a second adjustable back support assembly. The first support member is moveably connected to the second adjustable back support assembly, the first support member being configured to pivot relative to the second adjustable back support assembly relative to a first axis of rotation, and the second support member is moveably connected to the first support member, the second support member being configured to pivot relative to the first support member relative to a second axis of rotation that is not parallel to the first axis of rotation.

A mobile wheelchair/chair, especially for the disabled, having a body support system mounted on the casing, a swivel and drive assembly and castors is characterized in that the swivel and drive assembly equipped with drive motor (8) and swivel motor (5) has s form of coupled vertical fixed fork (6) furnished with at least one swivel wheel (7), and seat (3) is mounted on the steering and swivel axis of fixed fork (6), with swivel motor (5) located in the upper part of the steering and swivel column (6a) of fixed fork (6). Casing (1) is equipped with castors (2) in its lower part.

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.

A wheelchair having a chassis on which the following are arranged, opposite one another: at least one drive unit comprising a drive wheel and an electric drive system, a front wheel positioned on a front swivel arm, and a rear wheel, wherein said. The drive unit and front swivel arm are arranged so as to pivot relative to the chassis in a vertical plane, and are coupled to one another by a first coupling and a second coupling member.

Embodiments of a suspension for a vehicle is provided. The suspension includes, for example, a frame and a locking assembly. The locking assembly inhibits tipping of a frame of the vehicle when tipping of the frame is detected.

Wheeled vehicles, such as wheelchairs, that are adapted to traverse obstacles are provided. The wheeled vehicles include a frame, drive wheels, front anti-tip wheels positioned in front of the drive wheels and rear anti-tip wheels positioned behind the drive wheels. One exemplary vehicle includes front anti-tip wheels supported by rigid arms that are fixed to the frame and drive assemblies that are independently suspended from the frame. Another exemplary vehicle includes a linkage that links the front and rear anti-tip wheels, such that movement of one of the front or rear anti-tip wheel relative to the frame causes movement of the other wheel relative to the frame.

A powered wheelchair is operated by sensor-based control pads that include force transducers to produce a variable output signal that is proportional to a varying force applied. The control pad provides an analog-type output that provides a variable speed signal to a controller to operate the wheelchair at a variable speed in both forward/reverse directions and in right or left turning directions.

A mobile body (1A) includes: a base body (3) tiltably assembled to a movement operation section (2) that can move on a floor surface; an occupant riding section 6 installed to the base body (3) by a connection mechanism (4); an auxiliary ground contact section 7 connected to the occupant riding section (6) and in contact with the floor surface in a slidable or rollable manner when a tilt amount of the occupant riding section (6) with respect to the floor surface increases to a predetermined amount; and a control device (80) which controls the movement of the movement operation section (2) to stabilize the attitude of the mobile body (1A). The connection mechanism (4) elastically rocks the occupant riding section (6) with respect to the base body (3) according to the movement of the center of gravity of a user P riding on the occupant riding section (6).

The invention is a control apparatus for a personal vehicle, in particular for wheelchair (10), the control apparatus comprising: a first motion sensing unit (11) adapted for being mounted on a body part and for determining orientation with respect to an external frame of reference, a second motion sensing unit (12) adapted for being mounted on the personal vehicle and for determining orientation with respect to the same external frame of reference, and a processing unit (13) adapted for outputting an inertial control signal corresponding to a relative orientation of the first motion sensing unit (11) and of the second motion sensing unit (12) determined on the basis of a first orientation supplied by the first motion sensing unit (11) and of a second orientation supplied by the second motion sensing unit (12). The invention is furthermore a personal vehicle provided with the control apparatus, and a control method therefore.