Angular opening e.g. cellar access, closing device, has cover sliding on upper slide to close horizontal part of opening, and door sliding on lower slide and pivoting in groove, where door has pins to close vertical part of opening

摘要

The device has a cover (1) sliding from front to back on an upper slide (3) for closing the horizontal part of an angular opening. A door (2) slides horizontally from front to back on a lower slide (3) and pivots in a groove (4). The door has two pins (6) supporting on a slide (7) for closing the vertical part of the angular opening. The slide (7) has a joint (8) to maintain the door in a vertical position.