| abstract |
Profile for the top and bottom guiding of the alveolate slats of a so-called accordion shutter made up of leaves with vertical articulations, characterized by two unequal perpendicular cells: the large cell with a U-shaped section with vertical opening, the small cell forming a slide with lateral opening, ovalized holes being made in the base of the large cell for attachment to the crosspieces of the doorframe by means of tabs comprising two grooves in each of which engages the shank of a screw which retains a plate at a distance, locking the screws securing the profile, the tab, and the plate. |