There is described a caster wheel support assembly for a wheelchair, the caster wheel support assembly having a first section configured to be securable to a frame member of the wheelchair and a second section configured to hold a swivel member coupled to a caster wheel. The caster wheel support assembly has a holding member designed as a collet configured to hold a first portion of the swivel member, in which first portion extends along a first axis. A second portion of the swivel member, which is coupled to the caster wheel, extends away from the first portion along a second axis, in which second axis forms an angle relative to the first axis. The holding member and swivel member are configured such that the first portion of the swivel member is supported by the holding member to selectively allow rotation of the swivel member relative to the holding member about the first axis and thereby cause adjustment of a camber of the caster wheel. The collet is configured to selectively allow clamping of the swivel member onto the holding member, thereby preventing rotation of the swivel member relative to the holding member, and release of the swivel member with respect to the holding member, thereby permitting rotation of the swivel member relative to the holding member.

This electromobility vehicle includes a vehicle frame, a seat unit mounted to the vehicle frame, a suspension mounted to a front-end side of the vehicle frame, a pair of front wheels aligned in a direction parallel to a width dimension of the vehicle and supported by the suspension, at least one rear wheel supported by the vehicle frame, and a drive device that drives either of the front wheels and the rear wheel, where the front wheels are omnidirectional wheels whose outer circumferential surfaces are formed by a plurality of rollers and the pair of front wheels is supported by the suspension such that it is placed in a toe-in arrangement.

A mounting unit for adjustably mounting an add-on piece to a frame, in particular of a wheelchair, includes at least one drum receiving unit having at least one aperture and female thread. The drum receiving unit is an integral part of the frame or adapted to be attached to the frame. At least one drum assembly has at least one hole and a male thread. At least one bolt is part of the add-on piece or adapted to be mounted therewith to hold the add-on piece. The drum receiving unit is adapted to receive the drum assembly. The female thread mates with the male thread and allows an alignment of the position of the hole with respect to the aperture, such that the bolt can be inserted through the aperture at least partly into the hole. The drum receiving unit with the drum assembly and/or the drum assembly with the bolt comprises a detachable form fit connection. At least one of the drum receiving unit, the drum assembly and/or the bolt comprises a detachable force fit connection with respective mating component.

Embodiments of the present invention provide a wheelchair for a wheelchair rider, the wheelchair having first and second wheel arms each pivotally mounted so as to allow the alignment of the first arm to move relative to the second arm through a range of relative alignment in response to the rider leaning laterally. First and second wheel mounts are provided on first and second arms respectively to mount respective first and second wheels with central axes of first and second wheels able to move in an arc about the point of pivotal mounting of the respective first or second arm.

A manual wheelchair has a camber tube that supports manual drive wheels for rotation relative to a wheelchair frame. A pair of drive motors are housed within the camber tube and connect to an axle shaft supported within a wheel hub. The axle shaft has a distal end defining an angle accommodating and torque-transmitting profile that connects to the drive motor. The axle shaft has a proximal end defining a torque transmitting connection with a drive disconnect assembly that selectively permits engagement of the drive motor to the wheel hub. The axle shaft supports a retaining ball and an actuator to permit the drive wheel to be removed from the wheelchair. The drive disconnect assembly permits the motor to be mechanically disconnected from the wheel hub to reduce drag and friction when the wheelchair is operated manually.

A tube assembly for a wheelchair frame comprises a tubular member having at least a first portion and a second portion angled relative to the first portion, the first portion configured to be in a seating zone of the wheelchair frame. The second portion is configured to be in a bottom front zone of the wheelchair frame, the tubular member defining a surface concavity in its peripheral surface delimited by a peripheral step, the surface concavity located at a junction between the first portion and the second portion of the tubular member. An interface member has a peripheral contour shaped and sized for the interface member to be received in the surface concavity and contoured at least partially by the peripheral step.

A system of bracket assemblies for a wheelchair comprises a pair of bracket assemblies adapted to be connected to respective sides of a seat frame of the wheelchair. Each of the bracket assemblies has a base adapted to be secured to a seat frame member of the seat frame, an arm adapted to be secured to a backrest frame member of a backrest frame, and a pivot pivotally connecting the base to the arm for rotational movement of the arm relative to the base. One or more blocking mechanism blocks the rotational movement of the arm relative to the base in a use orientation of the backrest frame. A rod having opposed ends connected to the base of the pair of the bracket assemblies for spacing the bracket assemblies away from one another. A rear wheel unit is also provided.

A system for person mobility devices such as wheelchairs. The system includes a personal mobility apparatus having a wheel support portion, and an axle engaging portion that is attachable to and detachable from the wheel support portion. The wheel support portion may be a body portion or a frame portion of the personal mobility apparatus that is formed separately to the wheel support portion. The wheel support portion may be shaped so as to fit a complementary shape of the axle engaging portion. The system allows for customization of a mobility apparatus for a particular application or user by adjusting the position or orientation of the wheel axles.

A spacing bar of a wheelchair frame comprising an elongated structural body having a pair of opposite ends, each of the opposite ends having a C-shaped clamp configured for being clamped to respective lateral frame members of the wheelchair frame, wherein the elongated structural body and the C-shaped clamps are integrally made of a monocoque composite construction, and a tightening assembly for each of the C-shaped clamps, the tightening assemblies being arranged in the spacing bar to loosen and tighten the C- shaped clamps to the respective lateral frame members. A wheelchair frame comprising: a pair of lateral frame members configured to support at least a seat, and front and rear wheel units, the lateral frame members each having an elongated frame portion in a seating zone of the wheelchair frame, and a spacing bar having an elongated structural body and a pair of opposite ends, each of the opposite ends having a connector configured for being clamped to a respective one of the lateral frame member of the wheelchair frame, wherein each of the connectors forms a joint with the respective one of the elongated frame portions constraining the spacing bar to movement of the spacing bar axially along the pair of the elongated frame portion, a tightening assembly for each of the connectors, the tightening assemblies being arranged in the spacing bar to loosen and tighten the connectors to block or allow movement of the spacing bar along the pair of the lateral frame members

A caster assembly for a wheelchair comprises a stem having a frame clamp at a first end and a fork clamp at a second end, the frame clamp configured to form a frame joint with at least one rotational degree of freedom with a frame portion of the wheelchair, a tightening of the frame clamp securing the stem to the frame portion, the frame joint having a frame rotational axis. A fork unit has a fork portion and a caster rotatably supported by the fork portion, the fork unit having swivel mechanism, and a joint portion forming a rotational joint with the fork clamp of the stem, a tightening of the fork clamp blocking rotation of the rotational joint, the rotational joint having a fork rotational axis. A vector of the fork rotational axis is normal to a fork rotational plane in which the fork rotates relative to the stem, and further wherein the frame rotational axis is not parallel to the fork rotational plane.