Shutter box, equipped with a connecting bar for a frame

摘要

The shutter box (100) has a connection rail (400) for overlapping a free edge of jambs (B1, B2) for being integrated on an upper crossmember (TS) of a frame (D) of an opening e.g. door, for rigidifying the crossmember. The connection rail has an intermediate branch prolonged perpendicular by two parallel lateral branches. A self-restraint section (440) is fixed on the upper crossmember of the frame.