Fixing device for a rail

Fixing device for a rail (1), having a mounting element which can be connected on one side of a wall (9) and on the other side of the rail (1), characterized in that the mounting element is a strip (2) which has an angular profile and has two limbs (21;

• 22) which are provided for holding the rail (1), the first limb (21) of which has openings (23) for the passing through of fixing screws (24) which can be connected to the wall (9), and the second limb (22) of which has a T-profile-shaped longitudinal slot (25) which is open towards the rail (1) and serves for holding and for retaining a locking element (3) which is connected by means of a thread to a mounting screw (32) serving for retaining the rail (1), wherein the locking element (3) is at least approximately of cuboidal design, so that it is introduced in a longitudinal orientation into the T-profile-shaped longitudinal slot (25), and can be rotated therein into a retaining position, after which the mounting screws (32) can be tightened.