A control lever (13, 34) is distinctly movable in different planes for actuation of different control means (15-18) in that it has, adjacent the control lever housing (10), a plate (37) provided with a number of bevelled flat edges (50, 51) corresponding to the number of planes in which the control lever is movable, the plate (37) being tiltable on said flat edges by means of said lever on which it is also movable. A spring (46) is provided between the plate (37) and a fixed abutment (41) on the lever for holding said lever (13) in engagement with a seat (28) and for urging said plate (37) against a planar portion of the housing (10). When the lever (13, 34) is moved in a given direction, the plate (37) is tilted about the edge (50, 51) against the action of the spring (46), any risk of the lever moving in another undesired plane being effectively eliminated.