AU2010224462A1 - Window and Door Frame Assemblies With Snap On Architraves - Google Patents

Description

WINDOW AND DOOR FRAME ASSEMBLIES WITH SNAP ON ARCI1TRAVES 5 BACKGROUND This invention relates generally to window and door fittings and assemblies and more particularly relates to improvements in window and door fitting profiles. The door and window assemblies of the present invention are particularly adaptable to building panels having outer skins 10 retaining therebetween an insulating core. Such panels are known in the industry as sandwich or stress skin panels. The invention further relates to window and door frame assemblies which are adaptable to such panels, are simple to install, adjustable to accommodate a variety of wall thicknesses, which can be mass produced and 15 which receive press fit finishing elements such as, but not limited to, architraves. The invention is applicable to domestic, industrial and other applications particularly with though not limited to structures manufactured from stress skin panels. More particularly, the invention relates to a method of fitting window and 20 door frame assemblies to respective wall and door openings and which include snap on architraves. It will be convenient to hereinafter describe the invention in relation to its application to wall structure manufactured from stress skin panels but it is to be appreciated that the invention is not limited to that application and may be adapted to alternative constructions and 25 materials. PRIOR ART The prior art is replete with a number of different window frame and door jamb and architrave assemblies each well adapted for use in particular applications. 30 Many types of window and door frames have been used in the past to finish wall openings. Since there are typically many wall structure variations in the construction industry, window and door frames must inevitably be 1 manufactured to suit particular wall constructions. Common wall structures are brick veneer, cavity brick, metal stud, stress skins panels and those that include an exposed surface of corrugated iron, ribbed steel or aluminium and the like. 5 Common to many window fittings is an extruded frame which provides a window surround and means to anchor a window to a wall structure. Door fittings generally comprise a door jamb to which is attached a finishing architrave. Typically the window frame includes a sill section, side sections and an overhead section, which are integrally attached and engage a wall 10 structure. The window frame is usually fitted to a. wall by screwing or nailing through a flange which engages internal wall members such as timber or metal studs. Once the window frame is fitted, internal and/or external cladding can be fitted followed by installation of an architrave surround. 15 In buildings constructed from stress skin panels or which are finished with corrugated steel cladding, builders can presently select windows having profiles to suit the particular structure or type of finish required. Typically a window frame will include an outer flange which sits flush with wall cladding. Window installation generally involves fitting to a wall structure 20 then finishing which includes trimming and/or sealing for weatherproofing and in the case of an internal wall fitting of architraves. Depending upon the window type selected by the builder, which may also be dictated by the type of structure, the sealing and finishing regime differs. In stress skin panels door frames which are presently used are manufactured from metal or timber 25 and once fitted, a finishing surround is installed which for internal walls will be an architrave nailed or screwed to the frame. It may be seen from the above examples that there are a number of known window and door mounting assemblies which builders may select from dictated usually by the type of structure to which the window or door is 30 fitted. There is however a need to provide improvements in and relating to fitting of door jams and window frames in stress skin panels, to reduce 2 installation times and labour costs. According to the preferred Form the window and door frames are prefabricated to allow an installer the advantages of convenient fitting. There is a need to provide an altenative to the known window and door fittings and particularly those which are fitted 5 to stress skin panels so that builders will have the choice of an assembly which is economic to manufacture, is easy to install, saves labour and construction time, is adjustable to suit walls of various thicknesses, has a minimum of fastenings and allows convenient fitting of finishing surrounds such as architraves. 10 INVENTION This present invention provides improvements in window and door fitting profiles and particularly those which are particularly adaptable to building panels having outer skins retaining therebetween an insulating core, known in the building industry as sandwich or stress skin panels. 15 The invention further provides window and door frame assemblies which are adaptable to such panels, are simple to install, adjustable to accommodate a variety of wall thicknesses and which can be economically mass produced. The invention further provides methods of fitting window and door frame assemblies to stress skin panels. 20 In one broad form the present invention comprises: a mounting assembly for mounting a window or door to a sandwich panel, the assembly comprising: a first element which engages an opening in the panel and defines a space which receives an edge of the panel, the first element including at least one 25 surface fixable to an opposing surface of the panel, the first element including at least one formation which receives and retains a second element which engages a second surface of the panel. In another broad form the present invention 3 an assembly for finishing the periphery of an opening in a stress skin panel wall of a structure, the assembly comprising: a 'first element which engages the opening in the panel via a first side of a peripheral surface of the opening, the first element including a formation 5 which defines a recess which receives an edge of the opening; the formation including at least one surface fixable to the 'first side, the first element further comprising a profile part which receives and retains a second element which engages an opposite surface of the panel. According to one embodiment the second element is an extension member 10 which co operates with the first element to retain the mounting assembly on the panel. According to this embodiment the first element comprises a door frame and the second element comprises a door frame extension element which allows fitting of the first element to a door opening via a face of a wall panel and securing the first element via the extension element to an 15 opposite face of the panel. Thus the first element is fitted from one side of the panel and the second element is fitted via an opposite side of the panel. According to an alternative embodiment, the second member is an architrave which engages a free end of the first element in snap fit engagement. According to this embodiment the first element receives and retains a 20 window profile. In a further embodiment, an adaptor is fitted to the first element to form an architrave and also to provide a mount for a security door. According to one embodiment, the first element is shaped as a door jamb frame including a recess for receiving a door hinge. According to a 25 preferred embodiment, an architrave is attachable to the first and second elements on opposite sides of a stress skin panel. Preferably the first and second elements are metallic extrusions which include formations which receive and retain the architraves or adaptor via snap fit engagement. Fasteners attach the first element to the panel and in the case where an 30 extension member is used, that too is fixed to the panel by a screw fastener. Seals are used to prevent moisture from entering the space between the 4 frame assembly and the panel skin. The frame assembly further comprises screw flutes which allow mutual fixing of door frame parts. A security door adaptor may be used which doubles as an architrave and mount for an external security door. Once the adaptor is engaged to the 5 profile it cannot be removed without destruction. The assembly can be adjusted in dimension to accommodate different sized panel thicknesses. The present invention provides an alternative to the known prior art and the shortcomings identified. The foregoing and other objects and advantages will appear from the description to follow. In the description reference is 10 made to the accompanying representations, which forms a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. These embodiments will be described in sufficient detail to enable those skilled in the art to practice the invention, and it is to be understood that other embodiments may be utilized and that 15 structural changes may be made without departing from the scope of the invention. In the accompanying illustrations, like reference characters designate the same or similar pats throughout the several views. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is best defined by the appended 20 claims. It will be convenient to hereinafter describe the invention in relation to a metal section in the present exemplary application. However, it is to be appreciated that the invention may be constructed from other materials. BRIEF DESCRIPTION OF DRAWINGS 25 The invention will now be described in more detail according to a preferred but non limiting embodiment and with reference to the accompanying illustrations. Figure 1 shows an exploded view from an external side of a stress skin wall panel with window and door frames fitted according to one embodiment. 5 Figure 2 shows the exploded view assembly of figure 1 viewed from an internal side. Figure 3a & 3b show respectively internal and external views of a wall panel with door jamb assembly fitted. 5 Figure 4a & 4b shows internal and external views of a wall panel with door jamb and window assemblies fitted and installed. Figure 5 shows a cross sectional view of a doorjamb assembly according to one embodiment including fitted architrave members. Figure 6 shows a cross sectional view of a door jamb assembly according to 10 an alternative embodiment including a. fitted architrave member and a security adaptor for receiving an external security door. Figure 7 shows isolated from the assembly of figure 6 a door jamb section profile according to a preferred embodiment. Figure 8 shows according to a preferred embodiment, a perspective view of 15 the profile of figure 7 isolated from. the assembly of figure 6 a door jamb section profile Figure 9 shows isolated from the assembly of figure 6 a cross sectional view of a hinge plate according to one embodiment. Figure 10 shows a perspective view of the hinge plate of figure 9. 20 Figure 11 shows isolated from the assembly of figure 6 a cross sectional view of a screen door adaptor according to a preferred embodiment. Figure 12 shows a perspective view of the adaptor of figure 11. Figure 13 shows isolated from the assembly of figure 6 a floor architrave profile. 25 Figure -1.4 shows a perspective view of the architrave profile of figure 13. 6 Figure 15 shows a door jamb profile including a striker plate and hinge plate according to a preferred embodiment. Figure 16 shows an exploded view of the door jamb profile of figure 15 according to a preferred embodiment. 5 Figure 17 shows a cross sectional view of a window frame profile with architrave attached according to one embodiment. Figure 18 shows a cross sectional view of the window architrave according to a preferred embodiment. Figure 19 shows a perspective view of the architrave profile of figure 6 10 according to a preferred embodiment. Figure 20 shows a cross sectional view of an opposite side window architrave according to a preferred embodiment. Figure 21 shows a perspective view of the architrave profile of figure 20 according to a preferred embodiment. 15 Figure 22 sbows a sectional profile of the window frame according to a preferred embodiment. Figure 23 shows a perspective view of the window frame profile of figure 6 according to a preferred embodiment. DETAILED DESCRIPTION 20 The invention to be described below according to a preferred embodiment provides an alternative to the known window and door frame assemblies used in the installation of windows and door to sandwich panels. It will be convenient to hereinafter describe the invention in relation to its application to a wall structure and particularly a wall structure manufactured 25 from a sandwich panel of the type having an insulating core clad in metal 7 skins, but it is to be appreciated that the invention is not limited to that application and may be adapted to alternative constructions and materials, The assembly will be described with reference to an extruded profile assembly for formation of a window and door frame and which is 5 finished on an inside of a wall with detachable snap fit architrave members. In the case of a door frame fitted to an external wall, an adaptor may be fixedly attached as a mount for a security door. The invention will also be described with reference to a door frame which is adapted to fit to a stress skin panel and which is receives and retains thereon architrave members. 10 The window and door frames will be described with reference internal and external finish - i.e. as they appear from the inside of a wall to which the window and door frames are fitted and also viewed as they appear from the outside of that wall. The description will refer to the profiles of a section of the window and door frames which are continuous about the periphery of the 15 window and door openings. Figure 1 shows an exploded view from an external side of a stress skin wall panel I with window assembly 2 and door frame assembly 3 according to one embodiment. Window frame assembly 2 comprises a window 4 which engages a supporting window frame 5. Window frame 5 engages opening 6 20 and receives snap fit window architrave 7. Door frame assembly 3 comprises a door frame 8 which receives and retains on an external side a security door adaptor 9. Alternatively, instead of a security door adaptor 9, franie 8 may receive a finishing architrave (see figure 5). Door frame 8 locates in opening 10 of wall panel 1. Frame 8 also receives a door frame extension 11. 25 Architrave 12 engages door frame 8 on inside face 13 of wall panel 1. Door frame assembly 3 further comprises floor architrave 14 and partition infill 15. Figure 2 shows with corresponding numbering the exploded view assembly of figure 1 viewed from an internal face 13. 30 Figure 3a shows a wall panel 20 viewed from an external face 21. Wall panel 20 includes opening 22 which receives and retains a door jamb 8 assembly 23 fitted thereto. Likewise, figure 3b shows with corresponding numbering panel 20 viewed from inside face 24 Figure 4a shows from an external view 33 a wall panel 30. Wall panel 30 includes an opening 34 which receives door frame assembly 31. In addition, 5 to door frame assembly 31 panel 20 includes window frame 32. Figure 4b shows from an internal view 35 doorway opening 34 which receives door frame assembly 31. Figure 4b shows internal and external views of door jamb assembly 31 and window assembly 32 fitted and installed. Doorjamb assembly includes a security adaptor 90 which receives a security 1.0 door ( not shown). Figure 5 shows a cross sectional view of a door jamb assembly 40 according to a preferred embodiment. Assembly 40 comprises an extruded element 41. which forms a door jamb or frame. Extruded element 41 defines a space 42 which receives and retains a wall panel 43. Element 41 includes a 15 first profiled part 44 terminating in a free end formation 45. At an opposite end of the profiled part 44 is a second formation 46. Located between first and second formations 45 and 46 is a retaining tab 47. Formations, 45 and 46 and retaining tab 47 co operate to receive and retain architrave 48. Tab 49 on architrave 48 engages recess 50 in formation 45 to secure end 51 of 20 architrave 48. End 52 of architrave 48 locates in. recess 53 of formation 46. Arm 54 extends from inside surface 55 of architrave 48 to engage retaining tab 47. Profiled part 44 further comprises an opening 56 which allows fastener 57 to engage and secure panel 43. Once fastener 57 is tightened, architrave 48 can be snap fitted to conceal fastener 57. Profiled part 44 25 further comprises water and air tight seal 58 which prevents either media entering space 42. Element 41 further comprises a profiled pat 59 which provides a door frame 60 and door jamb abutment surface 61 for door hinge 62. Shoulder 82 includes a recess 63 which receives and retains door seal 64. Part 59 terminates in formation 65 which engages recess 66 of door frame 30 extension 67. Door frame extension 67 includes an opening 68 which receives fastener 69 anchoring assembly 40 to panel 43. Located behind abutment surface 61 is a hinge plate 70 which receives fasteners (not shown) 9 which anchor hinge 62 to extruded element 41. Door frane extension 67 terminates at one end in formation 71 which receives engaging tab 72 of architrave 73. Between formation 71 and recess 66 is retaining tab 74 which retains arm 75 which extends from inner surface 76 of architrave 73. To 5 complete the architrave finish radiused end 78 engages recess 83 of formation 65. Assembly 40 further comprises screw flutes 79, 80 and 81 which allow mutual fixing of door frame parts. Figure 6 shows a cross sectional view of the door jamb assembly 40 with corresponding numbering but with substitution of a security door adaptor 90 10 for architrave 48 according to an alternative embodiment. Adaptor 90 receives a security door (not shown) via hinge 91 which is secured by fastener 92. Adaptor 90 is adapted to engage profile part 44. Preferably, once adaptor 90 is secured to part 44 it cannot be removed without destruction to prevent unwanted removal of a security door attached to hinge 91. Adaptor 15 90 terminates at one end 93 in tabs 94 and 95 which co operate to engage formation 45 of profiled part 44. rab 95 engages recess 96 and tab 94 engages end formation 97. Opposite end 98 of adaptor 90 engages recess 99 and formation 100 engages corresponding recess 101 of part 44. This locking arrangement prevents adaptor 90 from separating from part 44 and 20 once fully engaged, cannot be removed without destruction. Adaptor 90 further comprises a shoulder 102 including recess 103 which receives door seal 104. Figure 7 shows with corresponding numbering isolated from the assembly of figures 6 or 7 the door jamb assembly profile 41, 25 Figure 8 shows a perspective view of the profile 41 of figure 7 isolated from the assembly 40 of figure 6. Figure 9 shows isolated from the assembly of figure 6 a cross sectional view of a hinge plate 70. Figure 10 shows a perspective view of the hinge plate 70 of figure 9. 10 Figure 11 shows with corresponding numbering and isolated from the assembly of figure 6 a cross sectional view of the screen door adaptor 90. Figure 12 shows a perspective view of the adaptor of figure 11.. Figure 13 shows with corresponding numbering and isolated from the 5 assembly 40 of figure 6 architrave profile 73. Figure 14 shows a perspective view of the architrave profile 73 of figure 13. Figure 15 shows a door jamb profile 120 including a striker plate 121 and hinge plate 122. Figure 16 shows an exploded view of the door jamb profile 1.20 showing hinge 123 opposing hinge plate 122. Fasteners 124 secure 10 hinge 123 to hinge plate 122 through jamb profile 120. Figure 17 shows a cross sectional view of a window frame assembly 130 according to a preferred embodiment. Assembly 130 comprises window frame 131 which receives at end 132 an architrave 133. Frame 131 includes a spine 134 from which extend formations 135 and 136 which respectively 15 engage tabs 137 and 138 of window sill profile 139. Frame 131 defines a space 140 which receives and retains a wall panel 141. End 142 of frame 131 terminates in a recess 143 which receives and retains a seal 144 which provides sealing between frame 131 and panel 141. End 132 of frame 1.31 terminates in a recess 145 which receives free end formation 146 of 20 architrave 133. Formation 146 engages shoulder 147 of arm 148 to secure architrave 133 to frame 131. Figure 18 shows with corresponding numbering a cross sectional view of the window architrave 133 of figure 17. Figure 19 shows a perspective view of the architrave 133 of figure 17. 25 Figure 20 shows with corresponding numbering, a sectional profile of the window frame 131 of figure 17 and figure 21 shows a perspective view of the window frame profile 131. 11 It will be recognised by persons skilled in the art that numerous variations and modification may be made to the invention broadly described herein with out departing from the overall spirit and scope of the invention. 5 1.0 15 20 12

Claims (24)

1. An assembly for finishing the periphery of an opening in a stress skin panel wall of a structure, the assembly comprising: 5 a first element which engages the opening in the panel via a first side of' a peripheral surface of the opening, the first element including a formation which defines a recess which receives an edge of the opening; the formation including at least one surface fixable to the first side, the first element further comprising a profile part which receives and retains a. second element 10 which engages an opposite surface of the panel.

2. An assembly according to claim I wherein the first side is an external surface of a building

3. An assembly according to claim 2 wherein. the opposite surface is an internal surface of the building 1.5 4. An assembly according to claim 3 wherein the opening is a window or door

5. An assembly according to claim 4 wherein the opening accommodates a doorway.

6. An assembly according to claim 5 wherein the first element is fitted 20 from one side of the panel and the second element is fitted via an opposite side of the panel.

7. An assembly according to claim 6 wherein the second element is an extension member which co operates with the first element to retain the assembly on the panel. 25 8. An assembly according to claim 7 wherein the first element comprises a door frame and the second element comprises a door frame extension 13 member which secures via a fastener the first element to the opening via an internal face of the wall panel.

9. An assembly according to claim 8 wherein the first and second elements engage via co operating opposite gender interfitting. 5 10.An assembly according to claim 9 wherein the first element engages the outer surface of the panel and includes an opening to receive a fastener which secures the first element to the outer surface of the panel. 1 . An assembly according to claim 10 wherein the extension member includes profile parts which receive and retain an internal architrave. 10 12. An assembly according to claim II wherein the architrave includes profile parts which co operate with the profile parts on the extension member.

13. An assembly according to claim 12 wherein the profile parts of the architrave which co operate with the profile parts on the extension 15 member allow detachable snap fit engagement between the extension member and the architrave.

14. An assembly according to claim 13 wherein the first element is shaped as a doorjamb frame including a recess for receiving a door hinge.

15. An assembly according to claim 14 wherein the door frame receives and 20 retains via an outer face of the panel snap fit a security door mounting architrave.

16. An assembly according to claim 15. wherein the security mounting architrave includes a recess which receives and retains a door hinge to support a security door. 25 17. An assembly according to claim 16 wherein the first element includes profile parts which co operate with corresponding profile parts on the security door architrave to enable engagement therebetween. 14

18. An assembly according to claim 17 wherein the security door architrave is connected to the first element of the door frame via snap fit engagement.

19. An assembly according to claim 18 wherein once the security door architrave is engaged to the first element it cannot be removed without 5 destruction.

20. An assembly according to claim 19 wherein the door frame, extension element and architraves are metal extrusions.

21. An assembly according to claim 20 wherein the extension member is fixed to the panel via fastening screws. 10 22. An assembly according to claim 21 wherein the first element and security door architrave include door seals which prevent moisture from entering between the seal and a door fitted to the door jamb and from entering between the seal on the security door architrave and the security door. is 23. An assembly according to claim 22 wherein the door frame assembly further comprises screw flutes which allow mutual fixing of door frame parts.

24. An assembly according to claim 4 wherein the opening accommodates a window frame. 20 25. An assembly according to claim 24 wherein the first element engages a peripheral surface of the opening and the window frame engages the first element.

26. An assembly according to claim 25 wherein, the first element is fitted from one side of the panel and the second element is fitted via an opposite 25 side of the panel. 15

27. An assermbly according to claim 26 wherein, the second element is an architrave which when fitted to the first element abuts an inner surface of the panel.

28. An assembly according to claim 27 wherein, the 'first element 5 receives and retains a window frame via co operating opposing profile parts.

29. An assembly according to claim 28 wherein, the first element engages the outer surface of the panel and includes a waterproof seal to prevent water ingress between the seal and the outer face of die panel.

30. An assembly according to claim 29 wherein the first element includes 10 profile parts which receive and retain an internal architrave.

31. An assembly according to claim 30 wherein the architrave includes profile parts which co operate with the profile parts on the first member.

32. An assembly according to claim 31 wherein the profile parts of 15 the architrave which co operate with the profile parts on the first member allow detachable snap fit engagement between the extension member and the architrave.

33. An assembly according to claim 19 wherein the first element, window frame and architrave are metal extrusions. 20 34. A snap fit architrave for use in an assembly for finishing the periphery of an opening in a stress skin panel wall of a structure, the assembly comprising: a first element which engages the opening in the panel via a first side of a peripheral surface of the opening, the first element including a formation 25 which defines a recess which receives an edge of the opening; the formation including at least one surface fixable to the first side, the first element further comprising a profile part which receives and retains a second element which engages an opposite surface of the panel; wherein the second element 16 is an architrave having profile parts which co operate with profile parts on the finishing assembly enabling snap fit attachment of the architrave to the finishing assembly. 5 10 15 20 17