Abstract: A method for monitoring a steering device including a steering gear, a first steering actuator, a second steering actuator, a first traction mechanism drive with a first traction mechanism configured to connect the first steering actuator to the steering gear, and a second traction mechanism drive with at least one second traction mechanism configured to connect the second steering actuator to the steering gear, includes determining at least one first position parameter of the first steering actuator, and at least one second position parameter of the second steering actuator. The method includes evaluating the first position parameter and the second position parameter to determine that an unintentional change in position of at least one of the first traction mechanism and the second traction mechanism has occurred, and definitely associating the unintentional change in position with one of the first and second traction mechanism drives.

Abstract: Disclosed is an air spring device having a free-standing air spring bellows and an outer guide which is fastened to the air spring bellows by means of an inner clamping ring, wherein the outer diameter of the inner clamping ring is greater than the outer diameter of the air spring bellows in the unpressurized state, and the inner clamping ring generates a radially outwardly pointing encircling bulge in the unpressurized air spring bellows.

Abstract: Disclosed is an air spring device having a free-standing air spring bellows and an outer guide which is fastened to the air spring bellows by means of an inner clamping ring, wherein the outer diameter of the inner clamping ring is greater than the outer diameter of the air spring bellows in the unpressurized state, and the inner clamping ring generates a radially outwardly pointing encircling bulge in the unpressurized air spring bellows.

Abstract: A sensor for a security system is disclosed to detect intrusions at one or more predetermined locations wherein each location includes a moveable member which must be moved in order to intrude the location. The system includes a fiber network routed in close proximity to one or more locations. The sensor comprises a sensor housing for being disposed at a location to detect a predetermined movement of the moveable member from a secure position to an unsecured position, and means for mounting the sensor housing in a stationary position at the location without a physical connection to the moveable member. The sensor housing includes a fiber inlet and a fiber outlet, and a fiber chamber for receiving a predetermined sensor fiber of the fiber network being routed through the sensor housing.