Fastening device

Claim 1

A fastening device for component carriers in system housings, the system housings having two vertical front frame bars, an interior, and an opening into the interior, the device including profiled fastening members to be attached to the two vertical front frame bars of the system housings; and height adjustable carrier elements to be fastened to the profiled fastening members and provided with a fastening thread for screwing on the component carriers that are equipped with front plates, characterized in that the profiled fastening members are each provided with two parallel mounting strips, namely a rear mounting strip adjacent to the interior of the system housing and a front mounting strip having a base and an interior face near the opening of the system housing; the mounting strips form a mounting groove having an essentially rectangular cross section; the mounting strips of the profiled fastening members face one another; the carrier elements are mounting brackets having a frontal face and a back and which have an L-shaped cross section composed of a short L-leg and a long L-leg, said long L-leg having a free end; the short L-leg of the mounting bracket forms a contact strip for the front plate of the component carriers; the free length of the short L-leg coincides with the thickness of the front mounting strip; in addition to the fastening thread, the back of the mounting bracket carries a spread-away spring element; a longitudinal guide in the form of a longitudinal groove as well as at least one retaining lug engaging in said longitudinal groove are formed between the frontal face of the mounting bracket and the interior face of the front mounting strip; if the spring element is depressed, the mounting bracket can be pushed form the side into the mounting groove and between the two mounting strips, with the retaining lug, in a pushed-in mounted position, engaging in the longitudinal groove.