Mounting device, particularly for roof boxes

Mounting device, in particular for the detachable fixing of roof boxes to mounted on a vehicle roof cross beams, passing through the bottom of the roof box, the cross members engaging around and be braced upward U-shaped Zugbugeln, wherein the limbs of the clamping yoke can be locked in each case by terminal elements one by one on base support part mounted rotary element are adjustable with extending in the direction of rotation wedge ramps between a release position and a clamping position for the arms of the clamping yoke, characterized in that the legs (5) are provided of the tie shackle (3) with external toothing (20), that the rotary element as a hollow rotary handle (12) is formed, in which a locking arm (14) is mounted with limited rotary and axial play, which, at the ends of mating teeth portions (19) in the external toothing during the rotation of the rotary handle (12) into the locking position (20) of the engaging leg (5) and that the Kei lrampen (25, 26, 38) are so constructed and arranged that, after the intervention of the counter teeth portions (19) of the locking arm (14) under tension of the ...