Clamping and spreading device

摘要

In order to provide a clamping and spreading device with a slide rail which is mounted for displacement and the displacement movement of which can be actuated in a clamping direction with blocking of the displaceability in the opposite direction and the displacement movement of which can be actuated in a spreading direction with blocking of the displaceability in the opposite direction, wherein the direction of displacement can be switched over between clamping direction and spreading direction, which can be produced in a simple manner and can be operated in a simple manner, a movable positioning element is suggested which supports actuating elements for the slide rail, wherein the displacement movement of the slide rail in the clamping direction or in the spreading direction can be actuated as a function of the position of the positioning element.