| 摘要 |
The invention relates to an electrically driven linear actuator for linearly moving a mass, in which at least one elongated actuator element, which, on the output side, acts upon the mass, is mounted inside a main pipe in a manner that enables it to slide in an axial direction, and which, on the input side, is coupled to a spindle nut that, itself, rests upon a spindle, which is rotationally mounted inside the main pipe and which can be placed in rotational motion by an electric motor. The spindle nut rests upon the spindle in such a manner that it, during its axial motion caused by a rotation of the spindle, displaces each actuator element in a telescopic manner with regard to the main pipe. In order to prevent oscillations of the drive from leading to vibrations on the mass that is to be moved, the invention provides that each actuator element is formed from two pipes that are arranged concentrically while forming a tubular gap, which is of a specified thickness, and these pipes are joined in a non-positive manner by means of an elastomeric material located inside said gap. One of the two concentric pipes acts upon the mass that is to be moved and the other is coupled to the spindle nut.
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