Frame of releasably coupled profiled bars

摘要

The framework is made of detachably connected profiled bars (10) joined by a connector (20). Some profiled bars have undercut grooves (14), and others have an end cavity (12) for the connector, consisting of a housing (23) fitting into the cavity, at least one longitudinally movable, plate-type holder (24), and an eccentric bolt (25) pivoting in the housing. The plate-type material (37) on the inner end of the holder is folded back against a coupling hook (22) to form a double-ply fold (40), forming the rear control protrusion (38) for an eccentric disc (16).