Abstract: The invention relates to a stroke transmitter for an actuator device. The stroke transmitter comprises a first and a second conversion unit, which are mechanically connected to one another in series, wherein the first conversion unit is designed as a hydraulic conversion unit, it can be connected to an actuator on its drive side and it is connected to the drive side of the second conversion unit on its output side, wherein the second conversion unit is designed as a cable system and has an output element on its output side. The invention also relates to an actuator device comprising an actuator and a stroke transmitter mechanically connected in series with the actuator.

Abstract: The invention relates to a hydraulic transmission unit for an actuator, which hydraulic transmission unit can be filled with a hydraulic fluid and has a first and a second chamber which are hydraulically interconnected and of which one is designed as a drive chamber and the other one is designed as an output chamber. At least in the first chamber, a piston is arranged movably along a piston axis, such that this piston subdivides the first chamber into a variable-volume working chamber and a rear-side chamber, the rear-side chamber being delimited at least partially by a bellows element having a variable axial length. The invention further relates to an actuator having such a hydraulic transmission unit.

Abstract: The invention relates to a stroke transmitter for an actuator device. The stroke transmitter comprises a first and a second conversion unit, which are mechanically connected to one another in series, wherein the first conversion unit is designed as a hydraulic conversion unit, it can be connected to an actuator on its drive side and it is connected to the drive side of the second conversion unit on its output side, wherein the second conversion unit is designed as a cable system and has an output element on its output side. The invention also relates to an actuator device comprising an actuator and a stroke transmitter mechanically connected in series with the actuator.