Patent attributes
A fastening device to be fitted into a support part (22) has a cover plate (1) and two clamping arms (6, 7). Each clamping arm (6, 7) has an inner leg (5) and an outer leg (10) which has a bracing structure on its end facing the cover plate (1). The bracing structure of each clamping arm (6) is provided with two flat side cheeks (15, 16) that are joined to mutually opposite side margins (13, 14) of the respective outer leg (10) and extend toward the other clamping arm (6, 7). Each side cheek (15, 16) has an end face (17) that is oriented at an angle to the cover plate (1) and falls away toward the respective outer leg (10) from the end remote from that outer leg (10). The fastening device according to the invention can consequently be used in the presence of relatively high extraction forces with support parts that vary in thickness over a relatively large range.