GB1053880A - - Google Patents

Abstract

1,053.880. Doors. DORPLASTEX A.G. Aug. 26, 1964 [Aug. 27, 1963], No. 34918/64. Heading E1J. A door comprises a core panel 1 of plastics foam material having a metallic stiffening insert, e.g. comprising interconnected elements 4, 5 of band iron, embedded in the core, e.g. of polystyrene preformed on the insert, or of polyurethane, the panel with the insertembedded being moulded in the cover sheets which cover the major faces of the core and are of solid plastics material, e.g. P.V.C. and have bent over edges to cover the edges of the core completely, the insert having extensions which project beyond an edge of the core panel to form parts of hinge means 6 for the door or for a lock 8. The core panel may be covered by separate sheets on the major faces and by strips glued to edge surfaces of the panel. The core panel may be formed of two sheets of plastics foam material, one sheet having the insert fitted therein and the other sheet glued to the first sheet to cover the insert. The cover sheets may be transparent, translucent and have a coloured or design sheet thereunder or a design may be printed on the cover sheets. The finished door may be covered with a removable protective film of sprayed polyethylene to prevent damage during storage or transportation. A door frame of similarly constructed door-posts and lintel, having glued mitred joints with a right angled metallic jointing piece inserted in metal tubes arranged in the cores, and with metallic inserts providing co-operating members for the hinges and lock &c. A method of manufacturing the door is also described.