COUPLING ELEMENT FOR AN ELECTRIC SWITCHING DEVICE, IN PARTICULAR A VACUUM SWITCHING TUBE

The invention relates to a coupling element for an electric switching device, in particular a vacuum switching tube, wherein the coupling element (10) comprises a first switching contact (1) for opening and closing an electric contact by means a second switch contact (2). The coupling element (10) according to the invention has an oblong winding body (3) having two ends (301, 302) which are opposite in the longitudinal direction of the longitudinal axis thereof, wherein the first switch contact (1) is arranged on one end. The coupling element (10) furthermore comprises a rotation body (4) through which the winding body (3) extends and which is provided for coupling to a drive in order to carry out a rotation movement by means of the drive, wherein the rotation body (4) comprises two sides (404, 405), of which one faces one end (301) of the winding body (3) and the other faces the other end (302) of the winding body (3). The rotation body (4) is rotatably mounted on the winding body (3) and the winding body (3) is guided in a linear manner such that the winding body is not rotatable about the longitudinal axis thereof, but can be moved in the longitudinal direction thereof relative to the rotation body (4). A plurality of wires (6, 6') is arranged between the rotation body (4) and the winding body (3) on one or both sides (404, 405) of the rotation body such that, via opposing rotation movements of the rotation body (4), a winding and unwinding of the wire(s) (6, 6') is caused on the winding body (3) and, as a result, the winding body (3) is moved in the longitudinal direction thereof relative to the rotation body (4) to open and close the electric contact of the first switch contact (1) by means of the second switch contact (2).