Prefabricated surround, preferably door surround

摘要

1. Prefabricated frame (1) made of deformable material, preferably a door frame with a jamb face (2) and flanges (3, 4) which are made in one piece with the said jamb face and which abut on the wall surfaces to be covered and which are made U-shaped at their free ends, and with an adjusting device (9) internally of the frame (1) by which device the flanges (3, 4) of the frame (1) can be moved towards one another, and the adjusting device (9) is formed of a clamp (10) which is arranged in the interior volume provided by the flanges (3, 4) and which comprises two tie elements (11, 12) movable relatively to one another by means of a one-piece adjusting screw (14), and the free end portions (18) of the tie elements (11, 12) engage in the inner legs (7, 8) of the flanges (3, 4), characterised in that a) the tie elements (11, 12) are of substantially Z-shaped construction, b) that leg (15) of each tie element (11, 12) which receives the adjusting screw (14) connects with the associated web (16) at an angle of approximately 90 degrees, and c) the axis of the adjusting screw (14) extends parallel to the jamb face (2) of the frame (1), and said screw can be operated from the outside through a bore (19) in a sealing strip groove (6).