Shift-by-wire actuating device having mechanical parking brake actuation

An actuating device for selecting gear steps of a shift-by-wire gearshift transmission, the actuating device comprising

• a base housing (1, 17),
• a selection lever (7) having a free end, the selection lever (7) is moveable along at least one shift gate (13, 14) between at least two drive stage positions and a parking lock position (P),
• a mechanical transmission device (2) to the gearshift transmission for actuating the parking lock,
• a coupling system arranged between the selection lever (7) and the mechanical transmission device (2) and having a coupling element (3), wherein actuation of the transmission device (2) by the coupling system only occurs selectively during selection and deselection of the parking, lock position with the selection lever (7),
• wherein the coupling element (3) has a first end (15) which is linearly guided in a first slot and a second end (16) which is guided in a second slot and coupled indirectly to the selection lever (7) and pivotable in a certain section, wherein each of the first and second end of the coupling element are supported on both sides by guide axis studs (15, 16) in associated slots (10, 11) disposed in the base housing (1, 17);
• wherein the first end of the coupling element (3) is coupled to the mechanical transmission device (2) while the second end of the coupling element (3) is connected to a rod element (4);
• wherein when the selection lever is in a D position, the first end of the coupling element (3) is farther away from the free end of the selection lever (7) than the second end of the coupling element (3) and the coupling element (3) is angled relative to the mechanical transmission device (2).