US Patent 11285059 Wheelchair convertible to a walker

Personal transportation aid that can be converted easily between a wheelchair and a walker. The device has handles that can be pushed forward to switch from wheelchair mode to walker mode. Pushing the handles forward causes the seat bottom of the wheelchair to flip up, opening a space where the user can stand to use the walker; the front wheels of the wheelchair are also pushed forward. Pulling the handles backwards returns the device to its wheelchair configuration, with the seat bottom flipped down and the front wheels moved backwards. Simple mechanical linkages may be used to flip the seat bottom up and down, and to push the front wheels forward and backwards; therefore the device does not require a power source or actuators.