Abstract: A robust multi-wall tray which is easily retrofitable to a wheelchair. Due to the structural design, the tray is lightweight but yet more rigid than conventional solid wheelchair trays. The multi-wall tray can be secured to a wheelchair with conventional means or with several novel means that provide a smooth work surface free of screws or Velcro™. A novel prior art adjustable tray support structure can also be integrated into the multi-wall tray to allow the system to mount robustly to the frame of a wheelchair and also allow the tray to fold away to the side of the wheelchair when not in use. Additionally, the multi-wall tray can have a sealed perimeter to create an enclosure for protecting electronic devices. The design can support electronic devices for computer assisted living while also providing a tray work surface for reading, writing or eating.

Abstract: A tabletop which is effectively easily retrofitable onto a wheelchair without any drilling or welding. The design can support an electronic device for computer-assisted living or simply provide a worksurface for reading or eating. The tabletop assembly is stabilized by an adjustable support structure. A mounting clamp may be provided to mount to the frame of the wheelchair, or a welded mounting tube can be provided which attaches onto the wheelchair footrest. The tabletop can be used in tandem with an optional horizontal panel which is mounted over the tabletop and top-hat brackets to support items such as an electronic device or a beverage. Alternatively, the tabletop can include a control panel which includes, for example, one or more pushbuttons, joy sticks and/or trackballs.