| 摘要 |
A door-jamb (1) in a wall-opening (3), for ventilation between adjoining rooms. The door-jamb (1) comprises stiles and a rail (4, 6) having a passage (17) for airflow and architraves (8) having at least one opening (20) communicating with said passage (17). The invention relates specifically to that the passage (17), in a direction toward the edge-surfaces (5, 7) of the wall-opening (3), is delimited by a rear board (18). The rear board (18) is connected to the rest of the stiles and rail (4, 6) at at least one side of the passage (17). The architraves (8) are mounted on the stiles and rail (4, 6) of the jamb (1), and each of their openings (20) are mounted in a section (22) of the architrave (8) facing away from the jamb (1) in a direction toward the edge-surfaces (5, 7) of the wall-opening (3), at the underside of an overhanging part of the section (22). |
