Method for filling and packing insulating powder in the walls of a cabinet body

Method for filling and packing insulating powder in hollow walls of a boxlike body (10) and then evacuating gaseous medium from the walls, so that the powder forms a vacuum insulation in the walls (14), the body (10) having a rear wall (12) and four side walls (14), said method comprising the steps of supporting the inner and outer sides of the walls in a fixture (34) with free edges (22) of the side walls pointing downwards, filling the walls by blowing the powder (46) into the rear wall (12) by gaseous medium of a first pressure, packing the powder by gaseous medium of a second pressure, which is higher than the first pressure, let into the rear wall, the media during the steps of filling and packing being let out of the walls via a filter element (24) arranged at the free edges (22), and evacuating the walls through the filter element (24) after the steps of filling and packing.