CA1169300A - Thermally insulated building structure - Google Patents
Thermally insulated building structureInfo
- Publication number
- CA1169300A CA1169300A CA000383489A CA383489A CA1169300A CA 1169300 A CA1169300 A CA 1169300A CA 000383489 A CA000383489 A CA 000383489A CA 383489 A CA383489 A CA 383489A CA 1169300 A CA1169300 A CA 1169300A
- Authority
- CA
- Canada
- Prior art keywords
- frame
- members
- leg
- legs
- channel
- 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.)
- Expired
Links
- 229910052751 metal Inorganic materials 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 23
- 238000001125 extrusion Methods 0.000 claims description 7
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 230000001154 acute effect Effects 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 abstract description 17
- 238000003780 insertion Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 241000905957 Channa melasoma Species 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 241000353097 Molva molva Species 0.000 description 1
- 241000183024 Populus tremula Species 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003000 extruded plastic Substances 0.000 description 1
- ATADHKWKHYVBTJ-UHFFFAOYSA-N hydron;4-[1-hydroxy-2-(methylamino)ethyl]benzene-1,2-diol;chloride Chemical compound Cl.CNCC(O)C1=CC=C(O)C(O)=C1 ATADHKWKHYVBTJ-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 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
- E06B3/26301—Frames with special provision for insulation with prefabricated insulating strips between two metal section members
- E06B3/26305—Connection details
- E06B3/26307—Insulating strips and metal section members both having L-shaped ribs, the engagement being made by a movement transversal to the plane of the strips
-
- 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
- E06B3/26347—Frames with special provision for insulation specially adapted for sliding doors or windows
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Wing Frames And Configurations (AREA)
- Door And Window Frames Mounted To Openings (AREA)
- Building Environments (AREA)
Abstract
ABSTRACT
A thermally insulated frame for use in a building comprises spaced inner and outer metal frame members (11, 12), and a thermal barrier (14) provided by a pair of facing, parallel, thermally insulating channel members (16) extending along the gap between the frame members to bridge the gap and interconnect the frame members. Each channel member has a pair of legs respectively received in grooves formed in the two frame members. Each groove has two facing, longitudinally serrated side walls, and each leg has two opposed surfaces both bearing longitudinal barbs for simultaneously interlocking with the facing wall serrations of the groove in which the leg is received. The grooves are dimensioned, in relation to the legs, to enable press-fitting insertion of the legs into the grooves.
A thermally insulated frame for use in a building comprises spaced inner and outer metal frame members (11, 12), and a thermal barrier (14) provided by a pair of facing, parallel, thermally insulating channel members (16) extending along the gap between the frame members to bridge the gap and interconnect the frame members. Each channel member has a pair of legs respectively received in grooves formed in the two frame members. Each groove has two facing, longitudinally serrated side walls, and each leg has two opposed surfaces both bearing longitudinal barbs for simultaneously interlocking with the facing wall serrations of the groove in which the leg is received. The grooves are dimensioned, in relation to the legs, to enable press-fitting insertion of the legs into the grooves.
Description
~g300 This invcntion relates to thermally insulated frames for use in buildings~ and more particularly to frames comprising inner and outer metal frame members interconnected by a thermal barrier for retarding heat conduction between the interior ~nd exterior of a building.
In present-day building constructions9 it is well known to employ structural frames of metal for such elements as door and window frames and sashes. Metal 18 frames afford various advank~ges9 including durability and ease of installatio~ and maintenance~ Owing, however, to the rela~ively high thermal conductivity of metals, a metal frame which is exposed to both the interior and exterior of a building provides a p~th for rapid heat~transfer through the building wall, derogating from de~ired therm~l insulation of the .~tructure. The minimizing of such heat losses is especially important from the standpoint of ~nergy consump~ion.
Accordingly) lt ha~ been proposed to provide metal frames (e.g. window and door frames) as assemblies o~
inner and outer metal frame members separated ~rom each other but interconnected structurally by a so~
called then~al break or barrier, viz. a body or bodie~
of material of thermal conductivi~y lower tha~ the metal. For example, the interconnectting thermal barrier may be con~t~t~ted of polyurethane poured into and solidified between the inner and outer frame members while be;ng laterally confiened a~ by a metal wall initially farmed integrally wit~ and extending betwee~ he in~er ~nd ou~er frame members but machined away after the polyurethane has solidified; such arrangement~, however, are inconvenien~ly complex and , , ` ~
' .'.' ..' ,' ~ , . ' .
- ': , :.
ll~g3~0
In present-day building constructions9 it is well known to employ structural frames of metal for such elements as door and window frames and sashes. Metal 18 frames afford various advank~ges9 including durability and ease of installatio~ and maintenance~ Owing, however, to the rela~ively high thermal conductivity of metals, a metal frame which is exposed to both the interior and exterior of a building provides a p~th for rapid heat~transfer through the building wall, derogating from de~ired therm~l insulation of the .~tructure. The minimizing of such heat losses is especially important from the standpoint of ~nergy consump~ion.
Accordingly) lt ha~ been proposed to provide metal frames (e.g. window and door frames) as assemblies o~
inner and outer metal frame members separated ~rom each other but interconnected structurally by a so~
called then~al break or barrier, viz. a body or bodie~
of material of thermal conductivi~y lower tha~ the metal. For example, the interconnectting thermal barrier may be con~t~t~ted of polyurethane poured into and solidified between the inner and outer frame members while be;ng laterally confiened a~ by a metal wall initially farmed integrally wit~ and extending betwee~ he in~er ~nd ou~er frame members but machined away after the polyurethane has solidified; such arrangement~, however, are inconvenien~ly complex and , , ` ~
' .'.' ..' ,' ~ , . ' .
- ': , :.
ll~g3~0
- 2 -difficult to produce, owing inter alia to the fact that substantial time is required for solidific~tion of the thermal barrier material. Alternatively, a thermal break may be constituted of extruded plastic members (commonly fabricated of polyvinyl ~hloride) of roll-lock or snap-on type but again, k~own forms of such members tend to be structurally complex, inconvenient to install, and/or vulnerable to dis-engagement especially when a frame assembly incorpor-~0 ating them is sub~ected tQ rotational stress. In addition, use of the latter members generally requires observance of very close dimensional tolerances.
The present invention broadly con~emplates the provision of a thermally insula~ed frame comprising spared }nner and outer metal frame members e~tending in parallel planes to each other and interconnected by a pair of substantially rigid par~llel elon~ate thermally insulating channel members which bridge the gap between the frame members and which are disposed with the legs of each channel member pro~ecting towards the legs of the other ch~nnel member, each channel member having one leg engaged in a groove in one of the frame member~ and its other leg engaged in a groove in the other fr~me member, the two ch~nnel members forming with the frame members a laterally - en losed lengthwise~extending air space in the g2p~
bo~h side walls of each groove being formed with leng~hwise extending serrations and the legs of the ch~nnel members h~ving both sides thereof formed with a plurality of lengthwise extending barb~ which inter-lock with the grooves to retain he legs in the grooves9 ~he cross-secti~nal dimensions vf each of which grooves is sufficiently large in relation to those of the leg to enable the leg to be press-fitted into the groove.
~ 16~30~
The term "~che~nally insulating~', as used herein with reference^to the channel member~, means hat the materia~ of w~ich the channel members are made has substantially lower the~mal conductivity than the 5 frame member~ Typically or preferably, the channel members are extrusions constituted of an organic polymeric material, e.g. a synthetic resin such as polyvinyl chloride, and are not only self-sustaining in shape but are characterized by relstively high tensile and compression strength.
In the frame according to the present invention, the facing channel members cooperatively constitute a thermal barrier of boxlike configuration affording desirable structural strength~ and assuring th~t when ^
the assembly is subjected to rotational stress about its long axis the individuaI channel members are under tension and compression rsther than flexural stress, thereby to ~ake advantage of the mechanical properties of a thenaally insulating material such as polyvlnyl chloride which, though having low flexural strength, has substantial tensile and compres~ive strength. Espe~ially important for attainment of the desired results are the prov~sion of longitudin~l barbs on each side of each channel member leg and the complementary provis~on of longitudinal serrations on both facing wall~ of each frame member grooveO The interlocking thereby achieved (effected b~ force it of the legS into the grooves; i.e. by defonma ion of the ~u~stantially rigid vin~l under force with cold 30 ~ ow of the barbs in~co place such that the barbs are wedged and retained under the serrations ) preve~ts dislodgment of the shannel members under torsional forces9 but, adYantageously, is a~tainable with relatively wide dimensional tolerances, owing to the presence of barbs and mating wall serrations on both sides of each leg.
1~6~330~
Production of ~he completed assembly is rapid and simple, requiring no time delay for solidification of the thermal barrier, nor any step of removing an initial llquîd-containing metal w~ll or bridge between the inner and outer metal frame members. The thermal barrier has highly satisfactory insulating properties, owing to the superior insulating effect of the air space defined between thP channel members within the gap as well as to the l~w thermal conductivity of the channel members themselves. Consequently, frames embodying the inYention can be used for a wide variety of building elements, including ~but not limited to) window frames 9 door frames and the like.
The invention will now be described in more detail with reference by way of example to the accompanying drawimgs in which:
Figure 1 is a simplified ragmentary perspective view of an illustrative frame assembly embodying the present invention in a particular form;
Figure 2 i5 an enlarged sectional view s~f the thermal barrier channel members and ~s~ociated portions of the metal frsme members of the assembly of Figure 1, and Figure 3 is a fragmentary ~ectional plan view of a window frame incorporating the invention.
Referring first to Figures 1 ~nd 2, there i.~
shown a building s~ructure frame assem.~ly 10 embodyi~g the inventio~ and comprising an inner metal frame member 11, an outer me~al frame member 12, and a then~al b~rrier or bre~k 14 comprising a pair of facing9 thermally insulating channel members 16 that ~nter-connect the two metal ~rame members. As will be understoodS ~he assembly 10 is inten~ed to represent, in a somewhat simplified schematic way, a frame ~such as a window or door frame) arranged to be 1 ~g3~0 mounted in a building wall such that the inner frame member 11 is exposed to the interior of the building and the outer frame member 12 is exposed to the exterior of the building.
Each of the frame members 11 and 12 is an elongate unitary integral member formed of a metal such as aluminium (i.e. pure aluminium metal or an alloy thereof) and is conveniently produced by extrusion in conventional manner. For simplicity of illustration, the members 11 and 12 are shown as having cross sections or profiles which are mirror images of each other, but in practice (as will be understood particularly by reference to Figure 3, described below), these members need not be identical or even similar in configuration except in the respective connecting portions 13, 15 thereof immediately adjacent the thermal barrier. Each of these portions 13, 15 is of substantially H-section and portion 13 is integrally connected to the main body of the frame member 11 by the extremity of one limbs 13a of the portion, portion 15 being similarly integrally connected to the main body of the member 12 by the extremity of one limb 15a of the portion.
The portions 13 and 15 of members 11 and 12 are disposed in closely spaced parallel relation to each other so as mutually to define a parallel-sided, elongate gap 18 between khem. Specific-ally, in the illustrated embodiment, this gap is defined between a planar longitudinal surface 21 of portion 13 facing portion 15, ~5 and a planar longitudinal surface 22 of portion 15 facing portion 13.
Each of the channel members 16 is a substantially rigid element composed of a material which is substantially lower in therma} conductivity than is the metal of frame members 11 and 12.
In the present embodiment of the invention, the members 16 are made of polyvinyl chloride and are produced by extrusion in conventional manner, being dimensioned to be self-sustaining in shape. As shown, each of the channel members 16 has a central web 24 and a pair of parallel legs 25 and 26 respectively extending along opposite edges of the web. In the assembly of Figures 1 and 2, the legs of each of the two channel members 16 '
The present invention broadly con~emplates the provision of a thermally insula~ed frame comprising spared }nner and outer metal frame members e~tending in parallel planes to each other and interconnected by a pair of substantially rigid par~llel elon~ate thermally insulating channel members which bridge the gap between the frame members and which are disposed with the legs of each channel member pro~ecting towards the legs of the other ch~nnel member, each channel member having one leg engaged in a groove in one of the frame member~ and its other leg engaged in a groove in the other fr~me member, the two ch~nnel members forming with the frame members a laterally - en losed lengthwise~extending air space in the g2p~
bo~h side walls of each groove being formed with leng~hwise extending serrations and the legs of the ch~nnel members h~ving both sides thereof formed with a plurality of lengthwise extending barb~ which inter-lock with the grooves to retain he legs in the grooves9 ~he cross-secti~nal dimensions vf each of which grooves is sufficiently large in relation to those of the leg to enable the leg to be press-fitted into the groove.
~ 16~30~
The term "~che~nally insulating~', as used herein with reference^to the channel member~, means hat the materia~ of w~ich the channel members are made has substantially lower the~mal conductivity than the 5 frame member~ Typically or preferably, the channel members are extrusions constituted of an organic polymeric material, e.g. a synthetic resin such as polyvinyl chloride, and are not only self-sustaining in shape but are characterized by relstively high tensile and compression strength.
In the frame according to the present invention, the facing channel members cooperatively constitute a thermal barrier of boxlike configuration affording desirable structural strength~ and assuring th~t when ^
the assembly is subjected to rotational stress about its long axis the individuaI channel members are under tension and compression rsther than flexural stress, thereby to ~ake advantage of the mechanical properties of a thenaally insulating material such as polyvlnyl chloride which, though having low flexural strength, has substantial tensile and compres~ive strength. Espe~ially important for attainment of the desired results are the prov~sion of longitudin~l barbs on each side of each channel member leg and the complementary provis~on of longitudinal serrations on both facing wall~ of each frame member grooveO The interlocking thereby achieved (effected b~ force it of the legS into the grooves; i.e. by defonma ion of the ~u~stantially rigid vin~l under force with cold 30 ~ ow of the barbs in~co place such that the barbs are wedged and retained under the serrations ) preve~ts dislodgment of the shannel members under torsional forces9 but, adYantageously, is a~tainable with relatively wide dimensional tolerances, owing to the presence of barbs and mating wall serrations on both sides of each leg.
1~6~330~
Production of ~he completed assembly is rapid and simple, requiring no time delay for solidification of the thermal barrier, nor any step of removing an initial llquîd-containing metal w~ll or bridge between the inner and outer metal frame members. The thermal barrier has highly satisfactory insulating properties, owing to the superior insulating effect of the air space defined between thP channel members within the gap as well as to the l~w thermal conductivity of the channel members themselves. Consequently, frames embodying the inYention can be used for a wide variety of building elements, including ~but not limited to) window frames 9 door frames and the like.
The invention will now be described in more detail with reference by way of example to the accompanying drawimgs in which:
Figure 1 is a simplified ragmentary perspective view of an illustrative frame assembly embodying the present invention in a particular form;
Figure 2 i5 an enlarged sectional view s~f the thermal barrier channel members and ~s~ociated portions of the metal frsme members of the assembly of Figure 1, and Figure 3 is a fragmentary ~ectional plan view of a window frame incorporating the invention.
Referring first to Figures 1 ~nd 2, there i.~
shown a building s~ructure frame assem.~ly 10 embodyi~g the inventio~ and comprising an inner metal frame member 11, an outer me~al frame member 12, and a then~al b~rrier or bre~k 14 comprising a pair of facing9 thermally insulating channel members 16 that ~nter-connect the two metal ~rame members. As will be understoodS ~he assembly 10 is inten~ed to represent, in a somewhat simplified schematic way, a frame ~such as a window or door frame) arranged to be 1 ~g3~0 mounted in a building wall such that the inner frame member 11 is exposed to the interior of the building and the outer frame member 12 is exposed to the exterior of the building.
Each of the frame members 11 and 12 is an elongate unitary integral member formed of a metal such as aluminium (i.e. pure aluminium metal or an alloy thereof) and is conveniently produced by extrusion in conventional manner. For simplicity of illustration, the members 11 and 12 are shown as having cross sections or profiles which are mirror images of each other, but in practice (as will be understood particularly by reference to Figure 3, described below), these members need not be identical or even similar in configuration except in the respective connecting portions 13, 15 thereof immediately adjacent the thermal barrier. Each of these portions 13, 15 is of substantially H-section and portion 13 is integrally connected to the main body of the frame member 11 by the extremity of one limbs 13a of the portion, portion 15 being similarly integrally connected to the main body of the member 12 by the extremity of one limb 15a of the portion.
The portions 13 and 15 of members 11 and 12 are disposed in closely spaced parallel relation to each other so as mutually to define a parallel-sided, elongate gap 18 between khem. Specific-ally, in the illustrated embodiment, this gap is defined between a planar longitudinal surface 21 of portion 13 facing portion 15, ~5 and a planar longitudinal surface 22 of portion 15 facing portion 13.
Each of the channel members 16 is a substantially rigid element composed of a material which is substantially lower in therma} conductivity than is the metal of frame members 11 and 12.
In the present embodiment of the invention, the members 16 are made of polyvinyl chloride and are produced by extrusion in conventional manner, being dimensioned to be self-sustaining in shape. As shown, each of the channel members 16 has a central web 24 and a pair of parallel legs 25 and 26 respectively extending along opposite edges of the web. In the assembly of Figures 1 and 2, the legs of each of the two channel members 16 '
3 ~ ~
project toward the legs of the other channel member. The two channel members extend along the gap 18 in facing, spaced parallel relation to each other so as to bridge the gap and to interconnect the frame members 11 and 12 to form therewith a structurally stable assembly having a laterally enclosed longit-udinal air space in the gap.
The cross-bar 17 and the two limbs of each of the H-section portions 13, 15 together form a first groove 28 extending along the gap for receiving one of the legs of one of the channel members 16, and a second, oppositely opening groove 30 extending along the gap for receiving one of the legs of the other of the channel members 16, such that the legs of each channel member are resp~ctively received in grooves of the two frame members on opposite sides of the gap. It will be seen that the groove 28 on each side of the gap is aligned with the groove 30 on the same side of the gap, such that the two channel members 16 (which - are equal to each other in width) are disposed in register with each other to constitute a thermal barrier of box-like configuration.
Each of the grooves 28 has two facing side walls 32a and 32b each of which bears plural parallel longitudinal serrations 34. It will be understood that these serrations are rib-like projections protruding toward the centre of the groove from the walls and extending along the length of the groove. Similarly, each of the grooves 30 has two facing side walls 36a and 36b each bearing plural parallel longitudinal serrations 38 identical to the serrations 34 of the grooves 28~ The serrations are integral with the groove walls, and may be produced conveniently by use of an appropriately configured extruding die in the extrusion of the members 10 and 11.
Each of the channel member legs 25 and 26 has two opposed side surfaces 40a and 40b bcth bearing plural, resiliently deformable parallel longitudinal barbs 42 for simultaneously interlocking with the facing wall serrations 34 or 38 of a groove 28 or 30 when the leg is received in the groove, thereby to retain the leg in the groove. As will be seen, the trailing ,-c ~
~?' ~
~ ~6~d30 edges of the barbs extend at an acute engle to the central plane of symmetry of the leg so that the rearward portions of the barbs are undercut. These barbs are projections extending along the full length of the channel member legs and are integral therewith, being formed during extrusion of the channel members.
The cross-sectional dimensions of each groove 28 and 30 are sufficiently large, in relation to the channel member leg received therein, to enable press-fitting insertion of the leg in the groove. That is to say, the relative dimensions of the groove and leg are such that, with the metal frame members 11 and 12 positioned as hown in Figures 1 and 2, the channel members 16 can be mounted (to interconnect the frame members) by force fitting insertion of their legs in the grooves; and when so mounted, they are retained in place by interference of the barbs of the channel member legs with the serrations of the groove walls along both sides of each leg. To accommodate the deformation of the channel member legs necessary to achieve the described force fitting, it is advantageous to so shape and dimension the grooves that when the legs are finally inserted, there is a space 44 between the extremity o~ each leg and the bottom of the groove in which the leg is received.
lt will be appreciated that in the ~rame assembly o~
Figures 1 and 2, the inner and outer metal ~rame members 11 and 12 are completely thermally isolated from each other by th~ thermal barrier 14 constituted by the pair of channel members 16 and the confined air space within gap 18. The components of this assembly are readily and conveniently manu~actured as by conventional extruding techniques, and are put 3~0 together with advantageous facility by simple positioning of the metal frame members and force fittin~ of the thermally insulated channel members into place. The produced a~sembly is structurally stable and fully capa.ble of withstanding the loads to which suc~ rames are ordinarily subJected in use.
By way of illustration of one spe~ific environment of use f~r the frame assembly o the present invention, there is shown in Figure 3 an exemplary type of window fr~me system incorporating the invention. This system9 adapted to be mounted in a building wall (not shown), includes a window frame assembly 50 arranged to be fixedly secured at a windo~ opening of a wall as by fasteners 52 and to support, for independent vertical sliding movement, a window screen 54, an upper window sash 56, and a lower window ~ash 58, ~he screen 54 being located on the outer side of the building.
The window frame assembly 50 comprises an in~er extruded aluminum frame member 60 and an outer aluminum frame member 62 which a~e intercon~ected but thermally isolated by a thermal barrier 14a in accordance with the invention. The thermal barrier 14 can be essentially identical ~o the thermal b~rrier 14 of Figure~ 1 and ?; thus ~s shown, it is con~t~tuted of a facing pair of thermally insulated channel members 16 having barbed legs force-fit~ingly recgi~ed ~ ~errated grooves fonmed in the frame members 60 and 62 slong he gap 18 defined between ~he frame members.
Similarly, the window sash 56 comprises an inner extruded aluminum frame member 64 and an outer extrude~
aluminum frame member 66 which cobperatively hold an a~sembly 68 of glas~ window panes. The in~er and outer fr~me members of the sash 56 are interconneoted 3 0 ~
but thermally isolated by means of a therDal barrier 14b which can again be essentially identical to the barrier 14 of Figures 1 and 2. The sash 58 may be of like construction with inner and outer extruded ~luminum frame members 70 and 72 interconnected by a thermal barrier 14c of the same typeO As will be appreciated, in Figure 3, features of structure of the rame system not pertinent to the present invention have been omitted for simplicity of illustration,
project toward the legs of the other channel member. The two channel members extend along the gap 18 in facing, spaced parallel relation to each other so as to bridge the gap and to interconnect the frame members 11 and 12 to form therewith a structurally stable assembly having a laterally enclosed longit-udinal air space in the gap.
The cross-bar 17 and the two limbs of each of the H-section portions 13, 15 together form a first groove 28 extending along the gap for receiving one of the legs of one of the channel members 16, and a second, oppositely opening groove 30 extending along the gap for receiving one of the legs of the other of the channel members 16, such that the legs of each channel member are resp~ctively received in grooves of the two frame members on opposite sides of the gap. It will be seen that the groove 28 on each side of the gap is aligned with the groove 30 on the same side of the gap, such that the two channel members 16 (which - are equal to each other in width) are disposed in register with each other to constitute a thermal barrier of box-like configuration.
Each of the grooves 28 has two facing side walls 32a and 32b each of which bears plural parallel longitudinal serrations 34. It will be understood that these serrations are rib-like projections protruding toward the centre of the groove from the walls and extending along the length of the groove. Similarly, each of the grooves 30 has two facing side walls 36a and 36b each bearing plural parallel longitudinal serrations 38 identical to the serrations 34 of the grooves 28~ The serrations are integral with the groove walls, and may be produced conveniently by use of an appropriately configured extruding die in the extrusion of the members 10 and 11.
Each of the channel member legs 25 and 26 has two opposed side surfaces 40a and 40b bcth bearing plural, resiliently deformable parallel longitudinal barbs 42 for simultaneously interlocking with the facing wall serrations 34 or 38 of a groove 28 or 30 when the leg is received in the groove, thereby to retain the leg in the groove. As will be seen, the trailing ,-c ~
~?' ~
~ ~6~d30 edges of the barbs extend at an acute engle to the central plane of symmetry of the leg so that the rearward portions of the barbs are undercut. These barbs are projections extending along the full length of the channel member legs and are integral therewith, being formed during extrusion of the channel members.
The cross-sectional dimensions of each groove 28 and 30 are sufficiently large, in relation to the channel member leg received therein, to enable press-fitting insertion of the leg in the groove. That is to say, the relative dimensions of the groove and leg are such that, with the metal frame members 11 and 12 positioned as hown in Figures 1 and 2, the channel members 16 can be mounted (to interconnect the frame members) by force fitting insertion of their legs in the grooves; and when so mounted, they are retained in place by interference of the barbs of the channel member legs with the serrations of the groove walls along both sides of each leg. To accommodate the deformation of the channel member legs necessary to achieve the described force fitting, it is advantageous to so shape and dimension the grooves that when the legs are finally inserted, there is a space 44 between the extremity o~ each leg and the bottom of the groove in which the leg is received.
lt will be appreciated that in the ~rame assembly o~
Figures 1 and 2, the inner and outer metal ~rame members 11 and 12 are completely thermally isolated from each other by th~ thermal barrier 14 constituted by the pair of channel members 16 and the confined air space within gap 18. The components of this assembly are readily and conveniently manu~actured as by conventional extruding techniques, and are put 3~0 together with advantageous facility by simple positioning of the metal frame members and force fittin~ of the thermally insulated channel members into place. The produced a~sembly is structurally stable and fully capa.ble of withstanding the loads to which suc~ rames are ordinarily subJected in use.
By way of illustration of one spe~ific environment of use f~r the frame assembly o the present invention, there is shown in Figure 3 an exemplary type of window fr~me system incorporating the invention. This system9 adapted to be mounted in a building wall (not shown), includes a window frame assembly 50 arranged to be fixedly secured at a windo~ opening of a wall as by fasteners 52 and to support, for independent vertical sliding movement, a window screen 54, an upper window sash 56, and a lower window ~ash 58, ~he screen 54 being located on the outer side of the building.
The window frame assembly 50 comprises an in~er extruded aluminum frame member 60 and an outer aluminum frame member 62 which a~e intercon~ected but thermally isolated by a thermal barrier 14a in accordance with the invention. The thermal barrier 14 can be essentially identical ~o the thermal b~rrier 14 of Figure~ 1 and ?; thus ~s shown, it is con~t~tuted of a facing pair of thermally insulated channel members 16 having barbed legs force-fit~ingly recgi~ed ~ ~errated grooves fonmed in the frame members 60 and 62 slong he gap 18 defined between ~he frame members.
Similarly, the window sash 56 comprises an inner extruded aluminum frame member 64 and an outer extrude~
aluminum frame member 66 which cobperatively hold an a~sembly 68 of glas~ window panes. The in~er and outer fr~me members of the sash 56 are interconneoted 3 0 ~
but thermally isolated by means of a therDal barrier 14b which can again be essentially identical to the barrier 14 of Figures 1 and 2. The sash 58 may be of like construction with inner and outer extruded ~luminum frame members 70 and 72 interconnected by a thermal barrier 14c of the same typeO As will be appreciated, in Figure 3, features of structure of the rame system not pertinent to the present invention have been omitted for simplicity of illustration,
Claims (5)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A frame comprising spaced inner and outer metal frame members spaced from each other and extending in parallel planes to each other and interconnected by a pair of substantially rigid parallel elongate thermally insulating channel members each of which bridges the gap between the frame members and which are disposed with the legs of each channel member projecting towards the legs of the other channel member, each channel member having one leg engaged in a groove in one of the frame members and its other leg engaged in a groove in the other frame member, the two channel members forming with the frame members a laterally enclosed lengthwise-extending air space in the gap, both side walls of each groove being formed with lengthwise extending serrations and the legs of the channel members having both sides thereof formed with a plurality of lengthwise extending barbs which interlock with the grooves to retain the legs in the grooves, the cross-sectional dimensions of each of which grooves is sufficiently large in relation to those of the leg to enable the leg to be press-fitted into the groove.
2. A frame as claimed in claim 1, wherein said frame members are extrusions.
3. A frame as claimed in claim 1, wherein said channel members are extrusions made From polyvinyl chloride.
4. A frame as claimed in any one of claims 1 to 3, wherein the trailing edges of the barbs extend at an acute angle to the central plane of symmetry of the leg whereby the rearward portions of the barbs are undercut.
5. A frame as claimed in any one of claims 1 to 3, wherein each of the members has a portion by which it is connected to a corresponding portion of the other member, each of said portions being of substantially H-section and being integrally connected to the main body of the associated frame member by the extremity of one limb of the portion, the cross-bars of the two H-section portions extending in a direction across the gap, and the two limbs and the cross-bar of each of said portions together forming two oppositely-facing grooves for respectively receiving one leg of the two channel members.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17648280A | 1980-08-08 | 1980-08-08 | |
| US176,482 | 1988-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1169300A true CA1169300A (en) | 1984-06-19 |
Family
ID=22644528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000383489A Expired CA1169300A (en) | 1980-08-08 | 1981-08-07 | Thermally insulated building structure |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS57155487A (en) |
| BE (1) | BE889893A (en) |
| CA (1) | CA1169300A (en) |
| CH (1) | CH644421A5 (en) |
| DE (1) | DE3130691A1 (en) |
| DK (1) | DK348381A (en) |
| FI (1) | FI812454L (en) |
| FR (1) | FR2488320A1 (en) |
| GB (1) | GB2081786B (en) |
| NL (1) | NL8103738A (en) |
| NO (1) | NO812695L (en) |
| SE (1) | SE8104735L (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2148963A (en) * | 1983-02-16 | 1985-06-05 | Roger Emsley | Thermal insulation of aluminium extrusions |
| EP0166021B1 (en) * | 1984-06-29 | 1988-02-03 | Tefo Ag | Assembling element with a first and a second flange, the latter being deflected from a reference line |
| DE3430962A1 (en) * | 1984-08-23 | 1986-02-27 | Konstruktionsbüro Margot Steinmetz, 6550 Bad Kreuznach | CONNECTING ELEMENT FOR MAKING A CONNECTION BETWEEN TWO PARTS |
| US4841700A (en) * | 1988-08-05 | 1989-06-27 | Kawneer Company, Inc. | Narrow flush glazed thermal framing |
| DE29507015U1 (en) * | 1994-04-30 | 1995-08-24 | PaX GmbH, 55218 Ingelheim | Window or door casement with attached faceplate |
| DE9420247U1 (en) * | 1994-12-17 | 1996-02-01 | Landert-Motoren-AG, Bülach, Zürich | Thermally insulated profile system |
| US7096640B1 (en) | 2003-05-30 | 2006-08-29 | Traco | Thermal breaking system for construction materials and the like |
| AU2004267119B2 (en) | 2003-08-25 | 2008-12-04 | James Hardie Technology Limited | Building panels |
| FR2860029B1 (en) * | 2003-09-24 | 2006-01-27 | Saint Gobain | TRAVERSE FOR MAINTAINING A SHUTTER, SHUTTER AND SHUTTER EQUIPPED WITH SUCH TRAVERSE |
| CN104047505B (en) * | 2014-05-26 | 2016-02-10 | 安徽盛达前亮铝业有限公司 | Vertical hinged door upper frame edge frame |
-
1981
- 1981-07-21 GB GB8122444A patent/GB2081786B/en not_active Expired
- 1981-08-03 DE DE19813130691 patent/DE3130691A1/en not_active Withdrawn
- 1981-08-04 DK DK348381A patent/DK348381A/en unknown
- 1981-08-07 CA CA000383489A patent/CA1169300A/en not_active Expired
- 1981-08-07 NL NL8103738A patent/NL8103738A/en not_active Application Discontinuation
- 1981-08-07 NO NO812695A patent/NO812695L/en unknown
- 1981-08-07 CH CH509081A patent/CH644421A5/en not_active IP Right Cessation
- 1981-08-07 BE BE0/205611A patent/BE889893A/en not_active IP Right Cessation
- 1981-08-07 SE SE8104735A patent/SE8104735L/en not_active Application Discontinuation
- 1981-08-07 FR FR8115390A patent/FR2488320A1/en not_active Withdrawn
- 1981-08-07 FI FI812454A patent/FI812454L/en not_active Application Discontinuation
- 1981-08-07 JP JP56123932A patent/JPS57155487A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2488320A1 (en) | 1982-02-12 |
| GB2081786A (en) | 1982-02-24 |
| FI812454L (en) | 1982-02-09 |
| NL8103738A (en) | 1982-03-01 |
| DK348381A (en) | 1982-02-09 |
| JPS57155487A (en) | 1982-09-25 |
| NO812695L (en) | 1982-02-09 |
| SE8104735L (en) | 1982-02-09 |
| CH644421A5 (en) | 1984-07-31 |
| DE3130691A1 (en) | 1982-04-22 |
| BE889893A (en) | 1981-12-01 |
| GB2081786B (en) | 1984-02-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |