Device for displacing a tongue blade in addition to a height-adjustable roller device

A device for lifting and displacing the tongue blade of a rail switch comprising at least two rollers, the axes of which are disposed substantially parallel to a running rail for displacing a tongue blade transversely to the running rail, at least two support carrier pins, each of which supports a roller, a base body which supports the support carrier pins, a projection on the rollers that extends in at least one first direction in relation to the body, and a covering between at least two adjacent rollers that is oriented towards the first direction and at least partially covers a passage between the at least two adjacent rollers, the base body having at least one bottom section and at least one top section disposed so as to be displaceable on the bottom section to adjust the height of the at least two rollers, wherein the direction of displacement between the bottom section and the top section of the base body is disposed at an angle to the plane of displacement of the tongue blade.