Patent ID: 7052222

Claim:
A quick-fastening element for anchoring loads to a rail system having a pair of opposed profile rails with a longitudinal slot therebetween and with a substantially C-shaped profile cross section, said element comprising: a mounting part which is located on top of the rail system; a cage connected to the mounting part, which cage protrudes downwardly into the slot between the profile rails and forms an axial guide against rotation of the mounting part relative to the profile rails; a closing nut which has a laterally elongated shape, the closing nut being rotatable relative to the mounting part (i) from an uninstalled position not engaged with inward-bent leg ends of the profile rails oriented toward one another (ii) to an installed position where said closing nut engages beneath the inward-bent leg ends oriented toward one another; and a first spring element provided between the closing nut and the mounting part which pulls the mounting part from above against the inward-bent leg ends of the profile rails, and a second spring element provided between an end of the cage protruding into the slot and the closing nut which presses the closing nut, in the installed position, against an underside of the inward-bent leg ends of the profile rails, and whereby, in the uninstalled position, the first and second spring elements retain the closing nut in a position of equilibrium between the mounting part and the end of the cage.