GB2196369A - Composite frame section with thermal bridge - Google Patents
Composite frame section with thermal bridge Download PDFInfo
- Publication number
- GB2196369A GB2196369A GB08624766A GB8624766A GB2196369A GB 2196369 A GB2196369 A GB 2196369A GB 08624766 A GB08624766 A GB 08624766A GB 8624766 A GB8624766 A GB 8624766A GB 2196369 A GB2196369 A GB 2196369A
- Authority
- GB
- United Kingdom
- Prior art keywords
- section
- sections
- thermally
- channel
- frame section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 27
- 229910052751 metal Inorganic materials 0.000 claims abstract description 29
- 239000002184 metal Substances 0.000 claims abstract description 29
- 239000004033 plastic Substances 0.000 claims abstract description 18
- 229920003023 plastic Polymers 0.000 claims abstract description 18
- 239000011347 resin Substances 0.000 claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 13
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 10
- 238000005755 formation reaction Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 8
- 239000004814 polyurethane Substances 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000011324 bead Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/04—Wing frames not characterised by the manner of movement
- E06B3/263—Frames with special provision for insulation
- E06B3/267—Frames with special provision for insulation with insulating elements formed in situ
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Wing Frames And Configurations (AREA)
- Door And Window Frames Mounted To Openings (AREA)
Abstract
A method of manufacturing a composite door or window frame section from a plastics section (1) and a metal section (2), comprising securing the two sections together by means of cooperating formations (12), to define an open channel (4) between the sections (1, 2), the base (21) of the channel being formed by the metal section, filling the channel with a liquid resin, allowing the resin to cure, and de-bridging (21) the base of the channel. In the resulting composite frame section, the metal and plastics sections are secured solely by the thermally-insulating bridge (4). <IMAGE>
Description
SPECIFICATION
Composite frame section with thermal bridge
This invention relates to a method of manufacturing a composite frame section from thermally-insulating, preferably plastics, and metal elongate sections, and also relates to a composite frame section formed of thermally-insulating and metal elongate sections secured together in parallel. The invention is particularly useful in the manufacture of door or window frame sections, which require a thermal break between interior and exterior portions.
It is known to provide composite window frame sections, in which the interior section is a plastics extrusion and the external section is a metal, for example aluminium, extrusion. The metal and plastics extrusions are generally connected by co-operating formations, for example resiliently deformable clips, and it is also known to reinforce such connections by means of a liquid resin poured into a channel defined by the two sections and allowed to cure. Such known composite frame sections still allow heat to be conducted towards the plastics section through the formations on the metal section, and accordingly it is an object of the present invention to minimise such thermal conduction while maintaining the mechanical strength of the connection between the metal and the plastics (or other thermallyinsulating) sections.
According to a first aspect of the present invention, a method of manufacturing a composite frame section from a thermally-insulating elongate section and a metal elongate section, the said sections having co-operating formations for securing them together in parallel, comprises fitting together the said sections by engaging the co-operating formations such that an open channel is defined by both the sections, the base of the channel and one side wall of the channel being defined by the metal section and the other side wall being defined by the thermally-insulating section, filling the channel with a liquid which is settable to form a thermally-insulating solid, allowing the liquid to set thereby securing the sections together, and de-bridging the base of the channel such that the sections are joined solely by the thermally-insulating solid.
In this way, the bridge of thermally-insulating solid interconnects the elongate sections securely, and thermal transfer between the two sections is minimised by de-bridging the metal base of the channel.
The liquid is preferably a resin, preferably a non-expanding resin, and the resulting thermally-insulating solid is preferably a rigid polyurethane. Preferably, the side walls of the channel have projections which become embedded in the solid.
According to a second aspect of the invention, a composite frame section comprises a thermally-insulating elongate section and a metal elongate section secured together in parallel solely by a bridge of thermally-insulating material, preferably rigid polyurethane.
In order that the invention may be better understood, two preferred embodiments thereof will now be described, by way of example only, with reference to the accompanying diagrammatic drawings, wherein:
Figure 1 is a cross-section through a composite frame section illustrating the method of the invention; and
Figure 2 is a cross-section through a composite frame section having a different configuration from that of Figure 1, further illustrating the method of the invention.
With reference first to Figure 1, a composite window frame section comprises a plastics section 1 of thermally-insulating PVC material, connected to a metal section 2 of anodised or painted aluminium; both sections are formed as elongate extrusions. The frame section is configured to support a windowpane 3, shown schematically in the drawing, which is held by a glazing rebate, by a secondary seal fitting into a channel section 11 in the plastics section 1, and by an aluminium glazing bead fitting into a further channel 22 in the metal section 2. As is usual with such composite frame sections, the plastics section 1 faces the interior of a building, in use.
The plastics and metal sections 1, 2 have co-operating formations 12 for securing them together. In this example, these formations consist of an open channel in the plastics section 1 having ribbed side walls, and a complementary, ribbed edge section of the metal section 2. The metal section 2 is a push fit into the plastics section 1, the connection holding the sections together in parallel.
A channel, open downwardly, is formed by the metal and plastics sections, the base and outer side wall of the channel being defined by the metal section 2, and the inner side wall of the channel being defined by the plastics section 1.
The composite frame section is manufactured as follows. Firstly, the metal and plastics sections 1, 2 are secured together by engaging the co-operating projections 12. With the composite frame section inverted relative to the orientation shown in Figure 1, so that the channel is open upwards, a substantially nonexpanding resin, consisting of a mixture of polyol and polyisocyanate, is then poured into the channel 4 until its meniscus 41, which is concave, reaches the top of the channel. Inner projections on both side walls 13, 23 of the channel 4 then become embedded in the resin, which is allowed to cure to form a rigid polyurethane, thermally-insulating bridge. The base 21 of the channel is then de-bridged, by removing a strip of metal bounded by the broken lines in Figure 1.
The resulting composite frame section thus consists of metal and p!astics sections rigidly interconnected by the thermally-insulating bridge 4 of polyurethane, which constitutes the only interconnection. Since the sections are joined solely by the thermally-insulating bridge 4, thermal conduction from the exterior to the interior is minimised.
An alternative form of frame section is illustrated in Figure 2, in which parts corresponding to those of the frame section of Figure 1 are denoted by the same reference numerals.
The only essential difference between the frame section of Figure 2 and that of Figure 1 is that the channel 4 is open upwardly, so that the resin is poured into the channel without inversion of the frame sections.
Although the invention has been illustrated by the particular examples of Figures 1 and 2, it should be understood that the invention is applicable to any composite frame section of thermally-insulating and metal elongate sections, and that the resin could instead be any liquid which is settable or curable to form a thermally-insulating solid capable of bridging mechanically the two sections together.
Claims (16)
1. A method of manufacturing a composite frame section from a thermally-insulating elongate section and a metal elongate section, the said section having co-operating formations for securing them together in parallel, the method comprising fitting together the said sections by engaging the co-operating formations such that an open channel is defined by both the sections, the base of the channel and one side wall of the channel being defined by the metal section and the other side wall being defined by the thermally-insulating section, filling the channel with a liquid which is settable to form a thermally-insulating solid, allowing the liquid to set thereby securing the sections together, and de-bridging the base of the channel such that the sections are joined solely by the thermally-insulating solid.
2. A method according to Claim 1, wherein the sections when fitted together define formations for receiving a windowpane.
3. A method according to Claim 1 or 2, wherein the thermally-insulating section is a plastics extrusion.
4. A method according to any preceding claim, wherein the metal section is an aluminium extrusion.
5. A method according to any preceding claim, wherein the liquid is a resin.
6. A method according to Claim 5, wherein the resin is substantially non-expanding.
7. A method according to any preceding claim, wherein the liquid sets to form rigid polyurethane.
8. A method according to any preceding claim, wherein the side walls of the channel have projections which become embedded in the solid.
9. A composite frame section comprising a thermally-insulating elongate section and a metal elongate section secured together in parallel solely by a bridge of thermally-insulating material.
10. A composite frame section according to
Claim 9, wherein the bridge is of resin material.
11. A composite frame section according to
Claim 10, wherein the resin is rigid polyurethane.
12. A composite frame section according to
Claim 9, 10 or 11, wherein the thermally-insulating section is a plastics extrusion.
13. A composite frame section according to any of Claims 9 to 12, wherein the metal section is an aluminium extrusion.
14. A composite frame section according to any of Claims 9 to 13, wherein the said sections have projections which are embedded in the bridge.
15. A composite door or window frame section substantially as described herein with reference to the accompanying drawings.
16. A method of manufacturing a composite door or window frame section substantially as described herein with reference to the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8624766A GB2196369B (en) | 1986-10-15 | 1986-10-15 | Composite frame section with thermal bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8624766A GB2196369B (en) | 1986-10-15 | 1986-10-15 | Composite frame section with thermal bridge |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8624766D0 GB8624766D0 (en) | 1986-11-19 |
| GB2196369A true GB2196369A (en) | 1988-04-27 |
| GB2196369B GB2196369B (en) | 1990-03-28 |
Family
ID=10605813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8624766A Expired - Fee Related GB2196369B (en) | 1986-10-15 | 1986-10-15 | Composite frame section with thermal bridge |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2196369B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2246385A (en) * | 1990-07-28 | 1992-01-29 | David Edward Rawlings | Improvements in or relating to the manufacture of thermal break frame sections |
| GB2257191A (en) * | 1991-06-25 | 1993-01-06 | Anglian Windows Ltd | Thermal break for interlocking frame sections |
| WO1993021415A1 (en) * | 1992-04-16 | 1993-10-28 | H.B. Fuller Licensing & Financing, Inc. | Improved metal casing with thermal break |
| WO2006113348A3 (en) * | 2005-04-19 | 2007-04-26 | Azon Usa Inc | Two color crimped style thermal barrier design |
| AU2004205125B2 (en) * | 2003-08-22 | 2009-08-27 | Aluminium Systems Nz Limited | Method of attaching non-metal frame to metal frame, and metal and non-metal frame adapted for such method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3818666A (en) * | 1972-03-17 | 1974-06-25 | Metalume Mfg Co Inc | Thermal barrier for frame structures |
| GB2095733A (en) * | 1981-03-27 | 1982-10-06 | Indalex Ltd | Insulating frame member |
| GB2128236A (en) * | 1982-10-05 | 1984-04-26 | Rtz Extruders Limited | Thermally-insulating frame members |
| GB2150181A (en) * | 1983-11-18 | 1985-06-26 | Rtz Extruders Limited | Insulated frame member |
| EP0159458A1 (en) * | 1984-04-26 | 1985-10-30 | CANDUSSO F.LLI s.r.l. BILICBORA | Production method for window and door frames wood-metal profiles, and relative profiles obtained with such a method |
-
1986
- 1986-10-15 GB GB8624766A patent/GB2196369B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3818666A (en) * | 1972-03-17 | 1974-06-25 | Metalume Mfg Co Inc | Thermal barrier for frame structures |
| GB2095733A (en) * | 1981-03-27 | 1982-10-06 | Indalex Ltd | Insulating frame member |
| GB2128236A (en) * | 1982-10-05 | 1984-04-26 | Rtz Extruders Limited | Thermally-insulating frame members |
| GB2150181A (en) * | 1983-11-18 | 1985-06-26 | Rtz Extruders Limited | Insulated frame member |
| EP0159458A1 (en) * | 1984-04-26 | 1985-10-30 | CANDUSSO F.LLI s.r.l. BILICBORA | Production method for window and door frames wood-metal profiles, and relative profiles obtained with such a method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2246385A (en) * | 1990-07-28 | 1992-01-29 | David Edward Rawlings | Improvements in or relating to the manufacture of thermal break frame sections |
| US5187867A (en) * | 1990-07-28 | 1993-02-23 | Azon Systems, Inc. | Manufacture of thermal break frame sections |
| GB2257191A (en) * | 1991-06-25 | 1993-01-06 | Anglian Windows Ltd | Thermal break for interlocking frame sections |
| WO1993021415A1 (en) * | 1992-04-16 | 1993-10-28 | H.B. Fuller Licensing & Financing, Inc. | Improved metal casing with thermal break |
| US5391436A (en) * | 1992-04-16 | 1995-02-21 | H. B. Fuller Licensing & Financing, Inc. | Metal casing with polyurethane thermal break |
| AU2004205125B2 (en) * | 2003-08-22 | 2009-08-27 | Aluminium Systems Nz Limited | Method of attaching non-metal frame to metal frame, and metal and non-metal frame adapted for such method |
| WO2006113348A3 (en) * | 2005-04-19 | 2007-04-26 | Azon Usa Inc | Two color crimped style thermal barrier design |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8624766D0 (en) | 1986-11-19 |
| GB2196369B (en) | 1990-03-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19961015 |