<p>The device (1) has an actuation lever (3) arranged pivotably about an axis (2) and shiftable between a locking position and a release position. A clamping element (4) is arranged in a guide (5) aligned in accordance with a course of a guidance and a runner rail. The guide comprises an open space in a subregion on an underside such that the clamping element is lowered to an extent that an end carriage is displaced away from an end of the guidance and the runner rail upon shifting of the actuation lever into the release position.</p>
