Switch drive

摘要

A switch is actuated hydraulically. For this purpose, a spring drive is inserted into the switch drive in addition to the hydraulic linear drive. The spring drive (24) travels through its dead-centre position between the end positions of the switch. For this purpose, the spring drive possesses a push lever (17) which is articulated on the linear drive and the other end (19.2) of which is movable resiliently on a path perpendicular to the linear drive. <IMAGE>