System for coupling an auxiliary element to a wheelchair

A system for coupling an auxiliary element to a wheelchair, the auxiliary element adapted to convert the wheelchair into a chair in the form of a tricycle, the system comprising:

• a coupling bar, the coupling bar comprising a profile defining an axis, the profile extending between two opposing ends of a wheelchair frame,
• a plurality of fasteners for releasably fastening the coupling bar to the wheelchair;
• wherein each of the plurality of fasteners comprises:
• a tubular projection mounted on the profile such that the entirety of the tubular projection overlaps the profile;
• and
• a planar projection formed in one piece with the tubular projection and at least partially overlapping the profile, the planar projection releasably fixed to a clamp, wherein the clamp in turn is configured to be fixed to the wheelchair,
• such that, when the plurality of planar projections are fixed to the clamps and the clamps are fixed to the wheelchair, the entire profile is configured to rotate about its axis,
• a coupler mounted on the coupling bar and having a plurality of rods mechanically connected to the coupling bar below the profile,
• a coupling accessory mechanically connected to the auxiliary element, the coupling accessory comprising a plurality of coupling accessory plates spaced substantially parallel to each other and defining therebetween a plurality of recesses;
• wherein the plurality of rods are sized and shaped to be releasably insertable into and retained in the plurality of recesses;
• wherein, when the coupling bar is fastened to the wheelchair, insertion of the plurality of rods into the plurality of recesses couples the auxiliary element to the wheelchair.