Abstract: Wheelchair with four wheels, with two side frames (1,2) and a middle frame (3,4) carrying the seat, both side frame (1,2) being connected to each other by means of the middle frame (3,4) in such a way that tilting of one of the side frames in one direction is followed by tilting of the other side frame through the same angle in the other direction, while the middle frame remains stationary.

Abstract: Electrically driven wheelchair with an essentially horizontal worktop (7) and a control unit (1) connected thereto, said control unit in the operational position fits into a corresponding aperture in the worktop and is connected to the worktop in such a way that it pivots and slides in a horizontal plane, and after pivoting and sliding the bottom side of the control unit fills the gap in the worktop.

Abstract: A joystick control unit. The control unit includes a controller, such as a handle, transmitting coil, plurality of receiving coils, and plurality of substrates. The handle may be subjected to spring forces which bias the controller toward a neutral position. The transmitting coil is made of electrically conducting paths on one substrate, and the receiving coils are made of electrically conducting paths on another substrate. One of the substrates is connected to the controller and, together with the controller, is movable in relation to the other substrate, which is located in a substantially fixed position. The controller and interconnected substrate may be moved in a variety of positions such that the controller and attached substrate have at least two degrees of freedom.

Abstract: Wheelchair comprising an underframe with front and rear wheels, and a seat part (1) which is adjustable relative to the underframe, which seat part (1) can be tilted forward and backward relative to the underframe in such a way that the overall center of gravity (6) of seat part (1) and wheelchair user (5) essentially assumes a fixed position relative to the underframe.