NZ577733A - Joinery assembly with corner joint that fits inside two elongate members and is crimped to provide support - Google Patents

Abstract

A corner joint for a frame includes a body 51 and leg portions projecting from the body so that the leg portions can be slipped into the ends 60 of the frame members 53, 54 toward the outside of the frame members to join the frame members at a corner 52. The body has notches 42, 43 in opposing directions in each leg portion that in use are covered by each elongate frame member when the corner joint is assembled, so that a portion of the elongate frame member can be crimped into each notch to hold the joint firm.

Description

Patents Form # 5 NEW ZEALAND Patents Act 1953 COMPLETE SPECIFICATION AFTER PROVISIONAL NO.: 577733 PRIORITY DATE : 17 June 2009 TITLE : Joinery assembly We, OPEN BUILDING SOLUTIONS LIMITED Address: 36 Paraite Road, Bell Block, New Plymouth, New Zealand, 4373 Nationality: A body corporate organized and existing under the laws of New Zealand do hereby declare the invention for which we pray that a patent may be granted to us and the method by which it is to be performed, to be particularly described in and by the following statement: 203973NZ_CAP_2OlO05O4_10O3_EHBOOl.DOC FEE CODE 1050 2 Joinery Assembly The invention relates to a joinery assembly for penetrations in buildings and to a method of assembly. The invention is directed particularly but not solely towards corner joint crimping assemblies for windows and doors.

Background of Invention In general extrusion profiles such as window joinery are formed having non-corner portions or straight portions joined to corner portions. Window joinery can be fabricated from aluminium where the corner portions are manufactured separately from the straight portions 10 which are then j oined together forming a window frame.

Joining window frame portions is accomplished by positive fastening means such as by screwing in combination with various flexible wet seals. The use of screws produces an unsightly joint with recessed or protruding screws being difficult to hide and protect. The 15 protruding aspect can also present a potential hazard and obstruction to fixing to cladding. Another problem with some screws is unsightly corrosion and the forced maintenance involved.

Another problem with traditional corner jointing which is very topical at the moment, is 20 leaking whereby water hitting a window joint and/or condensation forming on a window, can leak or seep through the joint to damage other building components.

In this specification unless the contrary is expressly stated, where a document, act or item of knowledge is referred to or discussed, this reference or discussion is not an admission that 25 the document, act or item of knowledge or any combination thereof was at the priority date, publicly available, known to the public, part of common general knowledge; or known to be relevant to an attempt to solve any problem with which this specification is concerned.

Object of the Invention It is an object of the invention to provide an improved corner joint crimping assembly and method of assembly that ameliorates some of the disadvantages and limitations of the known art or at least provide the public with a useful choice.

G:\203973NZ COMP SPEC 10MAY2010 EHB.DOC Received at IPONZ on 14 October 2011 3 Summary of Invention In a first aspect the invention resides in a corner joint crimping assembly for elongate frame members, having an outer surface facing or abutting a wall, the corner joint crimping 5 assembly comprising a body having leg portions extending from a corner or mitre intersection with the body being shaped having an inner and outer profiled surface whereby each body leg portion is shaped and adapted to interfit with at least one elongate frame member at a corner wherein each elongate frame member is crimped to a leg portion in simultaneous multiple axes directions with respect to a longitudinal axis of the elongate 10 frame members, the body of the crimping joint assembly being shaped and positioned when in use to be abutted to the outer surface of the frame members at the corner whereby the body has notches in opposing directions in each leg portion, that in use are covered by each elongate frame member when the joint is assembled whereby during crimping, a portion of the elongate frame member is deformed into each notch.

Preferably the body is shaped as a one piece body member.

Alternatively the body is shaped as two strip-like members.

Preferably the interfiling includes a connection whereby the body is captured by the elongate frame member so that the body covered or is not exposed substantively.

Preferably the body is formed and shaped having ends, the body having a substantially central planar portion and sides located at right angles to the ends so that in use one of the 25 sides form a plane adapted for the location of outer wall cladding and other side being adapted for the inner wall lining wherein there is a first side and second side.

Preferably one of the body sides is formed with a flange portion which is larger than a flange of the other side wherein the larger flange portion is formed to abut in use the outer cladding 30 of a building.

Preferably the small flange portion is formed to abut in use the inner wall lining of a building.

G:\203973NZ AMND SPEC 140CT2011 EHB.DOC Received at IPONZ on 14 October 2011 4 Preferably each elongate frame member can be formed into separate interfiting portions separated by a thermal break member.

Preferably the body is fabricated from a material such as for example a semi rigid high grade 5 plastic (like polyamide) or from an aluminium material or from a combination thereof.

Preferably the strip-like members are in the form of two cleat members in an L shape, and in use being in a spaced apart relationship with respect to each to other, with one elongate frame member being located close to the in use outer side of the corner joint crimping 10 assembly and the other cleat member being located closer to the inside of the corner joint crimping assembly.

Preferably the cleat members comprise a shallow channel-like formation including a base and side walls, being adapted and sized to be slidably captured by the elongate frame 15 members.

In a second aspect the invention resides in a method of forming a corner joint crimping assembly for elongate frame members to be fitted to a wall, having an outer surface facing or abutting a wall, the corner joint assembly comprising a body having first and second leg portions extending from a corner intersection, with the body being shaped having an inner and outer profiled surface whereby each body leg portion is shaped and adapted to slidably interfit with at least one elongate frame member at a corner wherein each elongate frame member is crimped to a leg portion in simultaneous multiple axes directions with respect to a longitudinal axis of the elongate frame members, the method of forming the corner joint assembly, the body of the crimping joint assembly, being shaped and positioned when in use to be abutted to the outer surface of the frame members at the corner, whereby the body has notches in opposing directions in each leg portion that in use are covered by each elongate frame member when the joint is assembled whereby during crimping, a portion of the elongate frame member is deformed into each notch, including: -providing body being profiled to allow slidable interfiting with elongate frame members -inserting a first leg portion of body into one end of one elongate frame member -slidably inserting second leg portion of the body into an end of the another elongate frame member -slidably pushing each elongate frame member towards each other at the corner intersection 35 until both elongate frame members abut and most of the body is not visible or no part of the body is visible - crimping the elongate frame members to each body leg portions in two opposing directions G:\203973NZ AMND SPEC 140CT2011 EHB.DOC To those skilled in the art to which the invention relates, many changes in construction and widely differing embodiments and application of the invention will suggest themselves without departing from the scope of the invention as defined in the appended claims. The disclosures and the descriptions herein are purely illustrative and are not intended to be 5 limiting.

Brief Description The invention will now be described, by way of example only, by reference to the accompanying drawings: Figure 1 is a perspective 'view of the corner joint assembly, assembled in accordance with a first preferred embodiment of the invention.

Figure 2 is a close up view of an upper corner and lower corner in an unassembled condition showing an upper and lower body assembly.

Figure 2 - Detail A is a close up view of the upper body assembly.

Figure 2 - Detail B is a close up view of the lower body assembly.

Figure 3 is a close up view of one body from inside the window mitre.

Figure 4 is a close up view of the same body but from outside of the window mitre.

Figure 5 is a perspective lower view of the outside of a cleat assembly.

Figure 5-Detail C is a close up perspective view of the outside of the corner cleat assembly 20 of figure 5 Figure 6 is a perspective outer view of cleat member assembly in an exploded/unassembled configuration.

Figure 6-Detail D is a close up perspective view of figure 6.

Figure 7 is a top plan view of the cleat assembly 25 Figure 7-Detail F is a close up view of the circled portion F of figure 7.

Figure 8 is a side view of the assembly of figure 9 of the cleat assembly.

Figure 8-Detail E is a close up view of the circled portion E of figure 8.

Description of Drawings The following description will describe the invention in relation to preferred embodiments of the invention, namely a corner joint assembly and method of assembly. The invention is in no way limited to these preferred embodiments as they are purely to exemplify the invention G:\203973NZ COMP SPEC 10MAY2010 EHB.DOC 6 only and that possible variations and modifications would be readily apparent without departing from the scope of the invention.

In general two different types of corner methods of construction are shown which include a 5 one piece body assembly for figures 1-4, and a L-shaped cleat assembly in figures 5 and 6 which can be crimped. Also a crimping assembly is shown in figures 7 and 8. A 'corner' can be defined in a general sense of being a place where two converging lines, sides edges, or surfaces meet.

Figures 1 and 2 show a corner joint assembly 1 and 2 for use with a profile for any type of opening such as for example a window but only showing a left hand side from outside of the window. Corner joint assembly 1 relates its use in a lower position of the window while assembly 2 is for an upper use position in a window. As shown each in the figures the window includes a frame which includes a first elongate frame member 4, a second elongate frame member 5 and third elongate frame member 6 and other elongate frame members not shown. In this case, member 4 is a lower horizontal elongate frame member, member 5 is a vertical elongate frame member and frame member 6 is a horizontal oriented elongate frame member. Each elongate frame member can be said to have a longitudinal axis parallel to its length, having ends and sides.

As shown in the close up views of figures 3 and 4 both assemblies 1 and 2 each comprise a body 10 formed as a corner shaped corner body having a first leg portion 12 with an end 13 and a second leg portion 14 with an end 15 and sides 16 & 17, whereby there is longitudinal axis directionally from end to end.

For the body, side 16 of the block body can termed an 'outer side' while side 17 can be termed an 'inner side', relating to the body's use whereby "inner side" refers to a side of the body, located on the same side as inside the building and the "outer side" is in reference to the side of the body on the same side as the outside of the building. Body 10 also has a body with a shape that defines various surfaces between the inner side and outer side such as an 'outer surface' 22 and an inner surface 21 (see figures 3 & 4) whereby the 'outer surface' and 'inner surface' orientations relates to the body use and position in each corner of the window or opening.

G:\203973NZ COMP SPEC 10MAY2010 EHB.DOC 7 Body 10 has a shape that allows it in use in one option to be captured and covered by a sliding interfiting action within each elongate frame member 4, 5, or 6. Each elongate frame member 4, 5, 6 has at least one end 18,19 or 20 (see figure 2 Details A and B) which is shaped and adapted to form a hollow profiled shape, to allow it to slidably accept one end 13 5 or 15 of the corner joint crimping assembly 1 or 2 in a male - female type fitting at a joint M which can be any angle such as a mitre joint. The body 10 can be considered to be the male part in such a joint. The ends of the elongate frame members meet a corner of the body to form a sealed joint to prevent unwanted fluid from entering the wall, or building.

As shown with respect to the body use in a wall with an opening space- window or door space, each body has an inner surface 21 which faces within the window space 3 and outer surface 22 faces away from the inside of the window.

Also as shown in figures 3 & 4 body 10 is shaped with a central planar portion having side flange 30 being in use termed an outer side flange shaped to fit and abut any outer wall cladding (not shown). Body 10 also has an inner side flange 31 which is shaped to interfit with inner wall lining (not shown). As shown in this option the outer flange 30 can be larger in extent than the inner flange though other shapes and dimensions are equally possible.

Each of these flanges 30 & 31 with all sorts of possible extensions 32 & 33 go to form the corner body 10 which is formed in general as a channel shaped member so that in use the channel is facing outwards with respect to the window space with a base portion 34 forming the edge perimeter of the window space and the flanges 30 & 31 being at right angles to the base portion 34 and parallel to the outer cladding and inner lining (not shown) In figure 4 there is a view of the body 10 from the outer side showing the outer surface 22 which is shaped to allow the insertion within the end of the elongate frame member 4, 5 or 6. There are shown other angles, planes or ribs or protrusions etc which though not essential to the working of the invention can assist in material use and manufacture or moulding.

As shown in figures 1-4 for body 10, notches 42 and 43 are shown on side flanges 30 and 31 in the body 10. Notches 42 are located on outer flange 30 on an inner edge of a flange portion facing inwards of the body 10 which can be termed a horizontal plane H when in use. Notches 43 are located on an inner edge of the inner flange 31 which can be termed a vertical G:\203973NZ COMP SPEC 10MAY2010 EHB.DOC 8 plane V when in use. For each body 10 there are a pair of notches one each on each leg portion 12 and 14 for one plane whereby in use when the window is being assembled, each body 10 is inserted within a corresponding elongate frame member a crimping action deforms a portion of the immediately adjacent elongate frame member into the notch to fix 5 the portion of the elongate frame member to the leg portions 12 and 14 of the body in simultaneous multiple axis in mutually opposing directions H and V (see Fig 4). The crimping action is applied at a direction(s) at an angle with respect to the longitudinal axis of the elongate frame members and body.

All of these notches in the corner bodies can not be seen after assembly with elongate frame 10 members in a wall as the notches in use face into the wall and not into the window opening and are also covered by each end of the elongate frame members which soon after are crimped.

In figures 5-8 there is shown the corner joint assembly when assembled with the elongate 15 frame members whereby a crimping apparatus has crimped the elongate frame members to the body 10. By 'crimping' we can mean any action that allows for the depression of a part of the frame into the body or cleat. For example this can be by lancing, notching or punching a portion of the elongate frame members into a specially positioned notch in the block. After crimping for each body notch 42 and 43 (see figure 4) there are immediately 20 adjacent, crimping flaps 42' and 43'. Each notch 42 and 43 can comprise a preformed recess or not and the crimping flaps can be simply formed by lancing. In operation after the body or cleat has been slidably fitted with the elongate frame members, the crimping assembly pushes down and across, onto the elongate frame member or onto a flap of the elongate frame member to push into the adjacent abutted body or cleat which may or may not have a 25 matching notch.

In figures 5-8 the crimping is shown for cleats rather than bodies. The cleats are L shaped members with a shallow channel like shaped cross section being sized to slidably interfit with the flanges of the elongate frame members to be concealed from view. Notching 30 positions are selected to provide opposed directional crimping to allow for the fixing of the joint to provide adequate structure integrity as required by use and various compliance codes.

G:\203973NZ COMP SPEC 10MAY2010 EHB.DOC 9 In summary in one option, one end of elongate frame member 4, 5 is slid over one leg portion 12 or 14 of the body 10 after which another elongate frame member is slid over the other leg portion of the same body 10 to then abut at the diagonal intersection or mitred joint line M whereupon crimping which can be applied after the sliding on of the elongate frame 5 members occurs.

In a variation of this sequence or method of assembly, the body leg portions 12,14 can be slid into each end of the elongate frame members.

For example to seal or form the corner joint assembly one needs to: -providing corner joint body being profiled to match elongate frame members -inserting a first leg of body into one end of one elongate frame member -slidably inserting second leg of the body into an end of the another elongate frame member 15 -slidably pushing each elongate frame member towards each other at the corner intersection until both elongate frame members abut at the mitre M and no part of the corner joint body or notches is visible - crimping the elongate frame members to the body leg portions in two opposing positions 20 Cleat members In figures 5-6 and associated Detail figures, there is a variation in the shape of the body 10 which can also be shaped as two cleat members 50 and 51. Similar in use to the corner body system of figures 1-4, for each corner joint 52 there are two cleat members 50 & 51 forming 25 a similar function in that they complete the intersection between meeting mitred elongate frame members 53 and 54. Each completed joint 52 relies on the cleats 50 and 51 being crimped to the elongate frame members 53 and 54 using the same type of crimping flaps 42' and 43' as used with the body, in mutually opposing directions with or without the notches in the cleats themselves. Additionally the cleats slidably interfit with the elongate frame 30 members in a male type fitting with the female elongate frame member.

For each joint there is a first cleat member 50 and second cleat member 51 which are shaped as strip like L-shaped members being sized to fit within and across the mitre joint formed G:\203973NZ COMP SPEC 10MAY2010 EHB.DOC between the elongate frame portions 53 and 54 which can be vertical and horizontal window frame members. Cleat member 51 is shown as being larger than cleat member 50 which is determined by the dimensions and shape of the elongate frame members. As shown in this example the cleats face each other in a spaced type arrangement being located close to and 5 abutting the inner and outer flanges of the elongate frame members.

As shown in figure 6-Detail D the elongate frame members 53 and 54 can be profiled mitred extruded elongate frame members having an approximate cross sectional shape comprising a central vertical base 55 and out-standing horizontal walls 56. As shown in the figures there 10 are or can be further horizontal walls or ribs that form other channels. The terms vertical and horizontal relate to the orientation of the elongate frame member of the frame as shown in these figures which will change when the frame is installed in any wall for example so that the horizontal walls as shown will be vertical walls. One of the horizontal walls 56 relates to its position in a wall construction whereby it is adapted in use to sit over the outer wall 15 cladding whereas the other horizontal wall 56 which can be smaller than the first mentioned horizontal wall relates to the inner wall linings.

The horizontal walls 56 being elongate in extent matching the length of the rest of the frame portion, have re-entrant flanges 58 on each side ie an upside down hook shape, along the 20 outer and inner edge of these walls to form 'shallow cleat channels' being oriented approximately at right angles to the base 55 to slidably receive a cleat. The other horizontal wall 56 extending from the base 55, can have a vertical wall 59 extending there along as shown in figure 6 and Detail D. By 'shallow' we can mean having low edge walls with respect to base 54. These frame profiles also include other shape features including various 25 flanges ribbing and recesses. The 'shallow cleat channels' can have the re-entrant flange portion 58 facing one way to form an elongate space 60 while base 55 and shallow non reentrant walls can form another channel 61.

Each cleat member 50 and 51 is a strip like L-shaped cleat member comprising a planar base 30 portion 65 and 66 longitudinally bordered by up-stand side members in the form of rib like edge members 67 and 68 thereby forming a shallow channel shaped member having ends. In one option the longitudinal rib edging can extend into the channel to cross at any angle thereof One cleat member 50 as in figure 6 and Figure 6-Detail D is sized to be smaller than the G:\203973NZ COMP SPEC 10MAY2010 EHB.DOC 11 other cleat member 51. Cleat member 50 is sized to fit the inner side of the joint while cleat member 51 is sized to fit the outer side of the joint closest to the outer cladding flange. The cleat members 50 and 51 can also have notches 42 and 43 being located in the longitudinal ribs in vertical and horizontal planes as shown to allow crimping in simultaneous multiple 5 axis directions with respect to the longitudinal axis of the elongate frame members 50 and 51 and/orbody.

The term 'axes' can be said to include any number of axis which can be any axis in space with respect to the bodies and cleats, elongate frame members and wall.

In use the cleat members 50 and 51 are located within the elongate frame members as shown in figure 6 and Detail D whereby the base portion 65 or 68 of each cleat is slidably abutting the inner surface of the profiled channel walls to be facing each other (i.e. the ribs face each other) in a spaced apart relationship. Each elongate frame member 53 and 54 is slid into 15 place so that the notches in the cleats are covered by the profiled shape of the elongate frame members 53 and 54 and the mitred corner edges abut or meet. Then the crimping process can be carried out at all so that a overlapped portion of the elongate frame member adjacent each notch is deformed by punching or pressing into each notch in mutually opposing planes to hold the cleat to the profiled member. Normally only two cleats plus crimping is 20 necessary to produce a weather tight structural seal. The two cleat members 50 and 51 will in use be in a parallel relationship with the base of each cleat being substantially parallel with each other, with the base in the plane also being parallel with the cladding and lining, and with the ribs facing each other to almost form a square hollow space thereinbetween (See Figure 6 and Detail D Figure 6).

As shown in figures 7 and 8 for each corner joint, crimping can be carried out by a crimping apparatus 75. Figures 7 and 8 show crimping using the cleats of figures 5 and 6 though the method can be equally applied to the body as well. The crimping apparatus 75 includes crimping arms 76 and 77, 78 and 79 operatively connected together as in Details E & F 30 which function to crimp and seal the resulting joint. On each side of the joint or mitre on each elongate frame member 53 and 54, there are two crimping arms operating in opposing directions.

G:\203973NZ COMP SPEC 10MAY2010 EHB.DOC 12 In operation the steps are: -place first pair of crimping arms - horizontal arms - -place first crimping arm 76 against frame member 53 in a first horizontal direction and second crimping arm 79 against frame member 54 in a second horizontal direction at almost 5 right angles to the first crimping arm 76 -place next pair of crimping arms - vertical arms - -place third crimping arm 77 against frame member 53 in a first vertical direction and fourth crimping arm 78 against other frame member 54 in a second vertical direction Body 10 or cleat members 50 and 5 lean be fabricated from any type of suitable material such as plastics which can be a rigid or semi rigid non brittle material such as high grade polyamidc, that allow it to be slidably interfitted with an elongate frame member 53 and 54 to provide a sealed leak proof joint. The body or cleat members can also be made from 15 aluminium or any combination of plastics and aluminium.

Advantages a) Concealed fastening with non visible mechanical fastenings b) Clean attractive look 20 c) Improved leak proofing d) More robust joint e) Has thermal break option f) Simple installation g) Modest manufacturing cost 25 h) Allows for any angled joint Variations Though only a window is shown in the figures, other types or shapes of profiles depending on use are also envisaged such as for example in ceilings, walls and floors which can 30 includes doors or simply just openings. Also the shape of the window is shown as a rectangle, though any other window shape is equally possible with the corner joint assembly being shaped accordingly. Sealing means can be additionally used such as by separate or G:\203973NZ COMP SPEC 10MAY2010 EHB.DOC 13 integral gasket and or wet sealing if required. The notches in the body can be formed during moulding of the body or can be formed later during the crimping operation.

Throughout the description of this specification, the word "comprise" and variations of that 5 word such as "comprising" and "comprises", are not intended to exclude other additives, components, integers or steps.

It will also be understood that where a product, method or process as herein described or claimed and that is sold incomplete, as individual components, or as a "kit of Parts", that 10 such exploitation will fall within the ambit of the invention.

It will of course be realised that while the foregoing has been given by way of illustrative example of this invention, all such and other modifications and variations thereto as would be apparent to persons skilled in the art are deemed to fall within the broad scope and ambit of this invention as is hereinbefore described.

Though a corner joint is shown which includes mitred elongate frame member joined to a body, other joints are possible whereby the elongate frame members can meet at other angles with a body being slidably interfitted therebetween therein.

G:\203973NZ COMP SPEC 10MAY2010 EHB.DOC Received at IPONZ on 14 October 2011 14 What we claim is:

Claims (14)

1. Claim 1. A corner joint crimping assembly for elongate frame members, having an outer surface facing or abutting a wall, the corner joint crimping assembly comprising a body having leg portions extending from a corner or mitre intersection, with the body being 5 shaped having an inner and outer profiled surface whereby each body leg portion is shaped and adapted to interfit within at least one elongate frame member at a corner wherein each elongate frame member is crimped to a leg portion in simultaneous multiple axes directions with respect to a longitudinal axis of the elongate frame members, the body of the crimping joint assembly being shaped and positioned when in use to be abutted to the outer surface of 10 the frame members at the corner, whereby the body has notches in opposing directions in each leg portion that in use are covered by each elongate frame member when the corner joint is assembled whereby during crimping, a portion of the elongate frame member is deformed into each notch. 15
2. Claim 2: The corner joint crimping assembly as claimed in claim 1 wherein the body is shaped as a one piece body member.
3. Claim 3: The corner joint crimping assembly as claimed in claim 1 wherein the body is shaped as two strip-like members. 20
4. Claim 4: The corner joint crimping assembly as claimed in claim 3 wherein the interfiting includes a connection whereby the body is captured by the elongate frame member so that the body covered or is not exposed substantively. 25
5. Claim 5: The corner joint crimping assembly as claimed in claim 4 wherein the body is formed and shaped having ends, the body having a substantially central planar portion and sides located at right angles to the ends so that in use one of the sides form a plane adopted for the location of outer wall cladding and other side being adopted for the inner wall lining wherein there is a first side and second side. 30 G:\203973NZ AMND SPEC 140CT2011 EHB.DOC Received at IPONZ on 14 October 2011 15
6. Claim 6: The corner joint crimping assembly as claimed in claim 5 wherein one of the body sides is formed with a flange portion which is larger than a flange of the other side wherein the larger flange portion is formed to abut in use the outer cladding of a building. 5
7. Claim 7: The corner joint crimping assembly as claimed in claim 6 wherein the small flange portion is formed to abut in use the inner wall lining of a building.
8. Claim 8: The corner joint crimping assembly as claimed in claim 7 wherein each elongate frame member can be formed into separate interfiting portions separated by a 10 thermal break member.
9. Claim 9: The corner joint crimping assembly as claimed in claim 8 wherein the body is fabricated from a material such as for example a semi rigid high grade plastic or from an aluminium material or from a combination thereof. 15
10. Claim 10: The corner joint crimping assembly as claimed in claim 9 wherein the striplike members are in the form of two cleat members in an L shape, and in use being in a spaced apart relationship with respect to each to other, with one elongate frame member being located close to the in use outer side of the joint assembly and the other cleat member 20 being located closer to the inside of the corner joint crimping assembly.
11. Claim 11: The comer joint crimping assembly as claimed in claim 10 wherein the cleat members comprise a shallow channel-like formation including a base and side walls, being adapted and sized to be slidably captured by the elongate frame members. 25
12. Claim 12: A method of forming a comer joint crimping assembly for elongate frame members, having an outer surface facing or abutting a wall, the comer joint crimping assembly comprising a body having first and second leg portions extending from a comer intersection, with the body being shaped having an inner and outer profiled surface whereby 30 each body leg portion is shaped and adapted to slidably interfit with at least one elongate frame member at a comer wherein each elongate frame member is crimped to a leg portion in simultaneous multiple axes directions with respect to a longitudinal axis of the elongate frame members, the method of forming the comer joint assembly, the body of the crimping G:\203973NZ AMND SPEC 140CT2011 EHB.DOC Received at IPONZ on 14 October 2011 16 joint assembly being shaped and positioned when in use to be abutted to the outer surface of the frame members at the corner whereby the body has notches in opposing directions in each leg portion that in use are covered by each elongate frame member when the joint is assembled whereby during crimping, a portion of the elongate frame member is deformed 5 into each notch, including: -providing corner joint body being profiled to allow slidable interfiting with elongate frame members -inserting a first leg portion of body into one end of one elongate frame member -slidably inserting second leg portion of the body into an end of the another elongate frame 10 member -slidably pushing each elongate frame member towards each other at the corner intersection until both elongate frame members abut and most of the body is not visible or no part of the body is visible - crimping the elongate frame members to each body leg portions in two opposing directions.
13. Claim 13: A corner joint crimping assembly for elongate frame members as claimed in claim 1 herein described with reference to the accompanying drawings.
14. Claim 14: A method of forming a corner joint crimping assembly for elongate frame 20 members as claimed in claim 12 herein described with reference to the accompanying 15 drawings. OPEN BUILDING SOLUTIONS LIMITED G:\203973NZ AMND SPEC 140CT2011 EHB.DOC