NZ195139A - Extruded aluminium window frame members with a reveal and architrave,and which forms an insulating confined pocket of air - Google Patents

Description

195 NEW ZEALAND PATENTS ACT, 1953 No.: 195,139 Date: 3 October 19 80 COMPLETE SPECIFICATION IMPROVEMENTS IN AND/OR RELATING TO WINDOW AND/OR DOOR JOINERY 5f£We, NEBULITE ALUMINIUM INDUSTRIES LIMITED, a New Zealand company of 1010 Cameron Road, Tauranga, New Zealand, hereby declare the invention for which i / we pray that a patent may be granted to vase/us, and the method by which it is to be performed, to be particularly described in and by the following statement:- 155 itf This invention relates to a window or door combined reveal or architrave member particularly designed for use in aluminium or door suites.

In the present invention reference will be made predominantly to windows but it is intended that the present invention should apply to any frame member used for a window, a door or any other opening. The term "reveal" has been used but it is to be understood that this term is synonomous with the term "jamb liner".

Aluminium windows require a reveal or jamb liner to be attached to the window frame to finish the opening in which the window has been fitted. Such a reveal traditionally has been provided by a wooden member with a wooden architrave around the inner edge. More recently the reveal has been provided as an extruded aluminium member normally having associated the architrave on the inner edge, thus completing the combined reveal and architrave member. With such a construction it is usual to fit the frame and then fit the reveal and architrave on site.

There are advantages in the quality of the installed unit and also in the ease of installation if the combined reveal and architrave can be attached to the window frame when the frame is being fabricated. The complete assembly may then be inserted through the opening in the structural members left to receive the frame and the frame and combined reveal and architrave fixed in place so that cladding on the inner walls can be fitted without any further finishing work. 195139 It is an object of the present invention to provide a combined reveal and architrave member which can be attached to the frame during fabrication and installed satisfactorily in the structure in combination with said frame.

Accordingly the invention consists in a window or door reveal and architrave member comprising an extruded section having a surface member which forms a reveal face of a window or door, an abutment means projecting below the surface member to engage with a structural member or packer, fastening means to allow said reveal and architrave member to be fixed to the structural member or packer, an integral architrave member on an inner edge of the surface member with the width of said architrave member not being greater than the projection of the abutment means below the reveal face and a lower attachment arm to be fixed to a lip or other member on an associated window or door frame or to a reveal extension member so that that fixing can hold the reveal and architrave member to the associated window or door frame or reveal extension member with the lower attachment arm, a web or arm connecting the lower attachment arm to the surface member, and a section of the surface member above the lower attachment arm forming a recess which in combination with an associated window or door frame complete a pocket of confined air.

One preferred form of the invention will now be described with reference to the accompanying drawings in which Figure 1 is a cut away view through a combined reveal and architrave member according to the present invention attached to a frame and installed in a wall structure, Figure 2 is an enlarged section detail showing the means of fixing used to retain the member in place, Figure 3 is a sectional detail of the connection between the frame and the reveal, and Figure 4 is a sectional detail showing an extension member which can be increased to the combined reveal and architrave member to increase the width of the reveal.

In the preferred form of the invention the combined reveal and architrave 1 is an aluminium extrusion having the ty-—— ! I 19S\39 visible reveal surface 2 preferably provided with a series of shallow recesses 3. These are intended primarily to afford a decorative effect and can be excluded leaving a plane surface or adopting any other textured surface which is considered aesthetically appealing.

On the inner edge of the visible surface 2 is an architrave 4 which in the preferred invention is returned substantially at right angle to the visible surface 2 of the reveal. The architrave is returned inwardly with a small stepped up section 5 which in use is designed to allow an area into which the wall paper if the cladding surface is to be finished in this manner can be easily trimmed and located. In the preferred embodiment illustrated a screw pipe 6 is also located at this area of the architrave as is apparent from figure 1 or figure 4.

An abutment means 7 projects below the reveal visible surface 2 and in use is designed to engage with the trim 8 or the structural stud 9 as is illustrated in figure 1 of the drawings. The distance of the abutment 7 from the visible surface will not be less than the width of the reveal. Preferably the abutment 7 is formed in combination with an attachment arm 10 lying substantially parallel to the visible surface of the reveal and integrally formed with the reveal through a web or arm 11. The abutment could be the undersurface of the arm 10 or ribs projecting from the undersurface or a combination of both. Minor variations in this area are demonstrated by slight variations in the embodiment illustrated in figures 1 and 4. 195153 The combined reveal and architrave must be fixed in place and this in the simplest form can be achieved by placing a fixing means through the reveal adjacent the abutment area. Obviously it is desirable to select a means of fixing which will not readily be visibly apparent or which provides a proper finished appearance. It would for instance be possible to use a fixing screw 12 or a fixing nail 13 passing through aligned apertures 14 and 15 in the upper surface 2 and the arm 10. This is illustrated in figure 1. A recess 16 to hold the head of the fixing means is provided in the upper surface. In figure 2 a fixing nail 13 has the head 17 formed complimentary to the recess 16 and would preferably have a surface finish similar or the same as that on the upper surface of the reveal. If a screw was used the screw head could incorporate a threaded recess which would receive a concealing cap to complete the finish." The present invention is not in any way restricted to this simple means of fixing and other means of fixing can be adopted. For example, the fixing as disclosed and claimed in our New Zealand Patent Specification No.195141 could be employed. Alternatively the reveal and architrave could be amended to provide the fixing between the undersurface of the installed reveal and the side of the stud against which the inner cladding is fixed.

As will be seen from the above description the top of the reveal, the arm 11 and the attachment arm 10 when fitted to the frame 18 completes a pocket 19 of still or confined air which is a significant factor in improving the insulation i9sm between the combined reveal and architrave and the frame.

This insulation is important principally to minimise condensation forming on the metal reveal. To further assist in providing this insulation insulating members 20 can be fitted about both the ends of the top visible surface 2 of the reveal and the attachment arm 10 as is illustrated in detail in figure 3. The insulating member 20 has a short side finished in a bead 21 designed to engage with the rib 22 on the window frame 18 and a longer side 23 which when the member is fitted onto the end of the arm 10 ensures there is an insulating layer between the metal surfaces. In this way the same insulating member can be used on both edges. This has been done for convenience of manufacture but the insulation could easily be provided in other ways.

The combined architrave and reveal member 1 is attached to the frame during fabrication by a rivet or other suitable attachment means 24 passing through the lower flange or lip 25 of the frame and the arm 10. Any suitable means of attachment could be used. It is desirable for the attachment to be located as described in the preferred embodiment as the attachment is then not visible once the unit has been installed. It is also desirable to use the attachment as illustrated because it still allows for easy means of connection while allowing the width of the reveal to be adjusted by ripping off a section if it is required to have a narrower finish. HOwever other means could be employed to connect the reveal and architrave. It would be possible to have a series of ribs projecting from the arm 10 on either side 195IJ9 thereof and use these ribs in combination with a complimentary member or part of the frame to allow engagement. It would be possible to provide recesses in the frame into which the ends of the arms can be engaged if necessary using complimentary engagement means to retain the two members together. It would be possible to retain the abutment means but to eliminate the arm 10 and use the point of connection between the reveal and the window frame. This both from the point of view of strength and visible connection would be the least desirable.

The overall width of the reveal will vary depending on the type of structure into which it is being installed. To allow for various widths to be readily accommodated an extension member 26 is provided. This extension member is illustrated in figure 4 of the accompanying drawings and comprises an hollow extruded member having the top visible surface 27 similar to the top visible surface 2 of the combined reveal and architrave member for which it will be used as an extension. An insert section 28 is designed to engage between the top 2 of the reveal and the attachment arm 10 with a connection being made by a rivet 29 fixing the arm 10 to the lower part of the inserted section as is illustrated in figure 4. The end 30 can be inserted in the frame in a manner similar to that illustrated in figure 3. If the length is required to be adjusted any required strip of the extension can be ripped away still leaving the connection as illustrated in figure 3. 195'139 Screw pipes and other connecting means have been formed in the extrusions as drawn. These have not been described in detail but it will be readily apparent to those skilled in the art that the members can be connected together at a mitred corner as illustrated in figure 1. Also the shapes of the extrusions may vary without departing from the scope of the invention as defined in the appended claims.

The use of the present invention will be apparent from the foregoing. The window or door frame is fabricated and at the time of fabrication the combined reveal and architrave either with or without an extension is trimmed to the correct width required in the finished product and attached to the frame as described above. The completed assembly can be taken on site and installed through an opening left in the structure to receive the frame. In the manner traditional with window frames packing members would then be inserted to correctly trim and locate the frame within the opening and the fixing means would be inserted again as described previously. Once the frame and combined reveal and architrave is inserted and fixed in place the interior cladding 31 can be fitted. With the present construction it is possible to use a factory finished reveal and architrave thereby minimising finishing work necessary on site. The construction tends to be stronger and the means of installation simpler than that available with conventional means where the combined architrave and reveal is fitted once the frame has been located in position.

Claims (9)

195139 WHAT HE CLAIM IS:

1. A window or door reveal and architrave member in combination with a window or door frame member comprising an extruded section having a surface member which forms a reveal face of a window or door, an abutment means projecting below the surface member to engage with a structural member or packer, fastening means to allow said reveal and architrave member to be fixed to the structural member or packer, an integral architrave member on an inner edge of the surface member with the width of said architrave member not being greater than the projection of the abutment means below the reveal face and a lower attachment arm fixed to a lip or other member on an extruded window or door frame member with the lower attachment arm, a web or arm connecting the lower attachment arm to the surface member, and a section of the surface member above the lower attachment arm forming a recess which in combination with the window or door frame member completes a pocket of confined air.

2. A reveal member in combination with a frame member as claimed in Claim 1 wherein the abutment means is formed by a projection extending from the lower attachment arm.

3. A reveal member in combination with a frame member as claimed in any one of the preceding claims including a film or layer of insulation between a surface or surfaces of the member which contacts with said window or door frame member.

4. A reveal member in combination with a frame member according to any one of the preceding claims including a reveal extension member having a top surface member engaged with the surface member of the reveal and architrave member, a lower surface member, an engagement IM..?. PATENT OFFfCE - 9 2 6 NOV 1984 195139 *;section extending into a space between the surface member of the reveal and architrave member and the lower attachment arm thereof,;with said arm and a lower part of the engagement section coupled together and with the other end of the reveal extension member attached to the frame in a similar manner as with the connection with the reveal member.;

5. A reveal member in combination with a frame member as claimed in Claim 4 wherein said reveal extension member comprises a hollow rectangular section having at one end a portion providing the engagement section engaged between the top surface member and the lower attachment arm of said reveal member.;

6. The reveal member in combination with a frame member as claimed in any one of the preceding claims wherein the width of the reveal and architrave member can be adjusted by trimming a section therefrom or from the reveal extension member coupled thereto to produce a desired finished width before fixing to the said window or door frame member.;

7. A reveal member in combination with a frame member according to any one of the preceding claims wherein said architrave member has on a free end thereof a recessed section with the recess able to butt against an inner cladding which can be located behind the architrave member.;

8. A reveal member in combination with a frame member according to any one of the preceding claims wherein the fastening means for fixing between the reveal member and the structural member or packer is adjacent the abutment means.;

9. A reveal member in combination with a frame member when constructed and arranged substantially as herein described with reference to the accompanying drawings.;DATED THIS *2^ DAY OF No-jq f/ A. J. PARK & SON AGENTS FOR THE APPLICANTS