Wheelchair (further: IR) -transformer refers to individual wheeled vehicles designed for people with disabilities. The drive wheels fixed to the wheel rolls in the crankshaft are inclined to each other with a local approach of their edge and with a reduced distance at this point between the wheels up to the possible contact, so that the wheel diameters in the plane of the crankshaft form the sides of the imaginary "A" the segment of the straight line connecting the centers of the wheels forms the crossbar of the indicated "letter A". The crankshaft is fixed to the frame IR with the ability to rotate the plane around the axis, which in this case coincides with the axis of the middle shaft, by a given angle and fixing it with respect to the frame of the IR. And the ends of the middle shaft are fixed to the IR frame with the help of bearings. To rotate and fix the crankshaft in relation to the IR frame, the crankshaft rotation control elements are used: the handle, chain transmission to the sprocket, the mechanism for fixing the angular position of the crankshaft relative to the IR frame and the ratchet / tightening mechanism, with the switching of the direction of action of the handle to the sprocket of the middle shaft. In the initial angular position of the crankshaft, the points / contact areas of the wheels of the IR with the OP are placed as widely as possible, while the stable movement of the wheelchair is provided, as in the wheelbase of the standard IR - sports or other types. The mode is convenient for parking, when stopped, at the beginning and at low speeds of IR motion. Turning the crankshaft by 180 ° from the initial position so that the points / contact areas of the wheels with the OP were shifted to the minimum width, we obtain a driving mode with a minimum narrow transverse base. It allows you to significantly increase the mobility of the stroller: turns in cramped conditions and the possibility of movement with increased speed. If in this mode of moti
