Patent ID: 8499654

Claim:
An electrically driven actuator for linearly moving a mass, the actuator comprising: a main pipe comprising a housing head; a spindle; a spindle nut; an electric motor; at least one elongated actuator element that acts on a driving side onto the mass, the at least one elongated actuator element is supported within the main pipe such that the at least one elongated actuator element is slideable in an axial direction and is coupled with the spindle nut at a driven side, wherein: the spindle nut is arranged on the spindle in such a manner that the spindle nut is displacing, when carrying out an axial movement caused by a rotation of the spindle, each actuator element in a telescopical mode with respect to the main pipe, the spindle is rotatably supported within the main pipe and is driveable by the electric motor so as to carry out a rotational movement, each actuator element is formed by two concentrically arranged pipes that are arranged so as to form a tubular gap of a predetermined thickness, the two pipes being connected by an elastomer material arranged in the gap in a manner enabling transmitting of force, one pipe of the two pipes acts onto the mass to be moved, and the other pipe of the two pipes is coupled with the spindle nut, and the two pipes protrude through the housing head to the outside; and an annular fastening element and an O-ring seated on the annular fastening element, wherein the annular fastening element and the O-ring are arranged in the gap between the two pipes at an end portion facing the mass to be moved, for protecting the elastomer material against external influences.