EP0046084A1 - Procédé de fabrication d'un profilé thermiquement isolé pour châssis vitrifiés - Google Patents

Procédé de fabrication d'un profilé thermiquement isolé pour châssis vitrifiés Download PDF

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Publication number
EP0046084A1
EP0046084A1 EP81303649A EP81303649A EP0046084A1 EP 0046084 A1 EP0046084 A1 EP 0046084A1 EP 81303649 A EP81303649 A EP 81303649A EP 81303649 A EP81303649 A EP 81303649A EP 0046084 A1 EP0046084 A1 EP 0046084A1
Authority
EP
European Patent Office
Prior art keywords
section
channels
metal section
cladding
lips
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
Application number
EP81303649A
Other languages
German (de)
English (en)
Other versions
EP0046084B1 (fr
Inventor
Garry Michael Thomas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BRITAL Ltd
Original Assignee
BRITAL Ltd
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Filing date
Publication date
Application filed by BRITAL Ltd filed Critical BRITAL Ltd
Priority to AT81303649T priority Critical patent/ATE8688T1/de
Publication of EP0046084A1 publication Critical patent/EP0046084A1/fr
Application granted granted Critical
Publication of EP0046084B1 publication Critical patent/EP0046084B1/fr
Expired legal-status Critical Current

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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
    • E06B3/30—Coverings, e.g. protecting against weather, for decorative purposes
    • E06B3/301—Coverings, e.g. protecting against weather, for decorative purposes consisting of prefabricated profiled members or glass
    • E06B3/305—Covering metal frames with plastic or metal profiled members

Definitions

  • This invention is concerned with a method of fabricating thermally clad metal section adapted for use in constructing frames for use in glazing, and clad section adapted for such use.
  • This problem is one of condensation, moisture condensing out of the relatively warm interior air on to the relatively cold metal; condensation can not only lead to unsightly "runs” of water down the glass panes, but can also lead to damage to surrounding structure (for example plasterwork, timber and wallcoverings).
  • condensation can not only lead to unsightly "runs” of water down the glass panes, but can also lead to damage to surrounding structure (for example plasterwork, timber and wallcoverings).
  • thermal cladding to help to insulate the metal from the inside of a building.
  • Thermal cladding can take the form of plastics extruded sections which fit over surfaces of the metal sections which are otherwise exposed to the inside of the building, the plastics material being of a relatively low thermal conductivity as compared with the metal.
  • plastics cladding section can take the form of plastics extruded sections which fit over surfaces of the metal sections which are otherwise exposed to the inside of the building, the plastics material being of a relatively low thermal conductivity as compared with the metal.
  • Various ways have been suggested for securing the plastics cladding section to the metal section, usually involving some combination of retaining formations on the metal and plastics sections. In one known system, oppositely and inwardly projecting retaining lips of a central portion of the metal section are engaged in oppositely and outwardly facing channels of the cladding section, the cladding section projecting well beyond the central portion of the metal section to provide a glazing flange of the clad section for the support of a glass pane.
  • a disadvantage of this known system is that the distance between the two sets of retaining formations is rather short, which can give rise to problems as regards both the alignment and the stability of the projecting glazing flange.
  • the manufacturing tolerances on the formations on the metal and plastics sections must necessarily be very close, or the cladding may be insecurely attached and/or misaligned.
  • fabrication of the clad strip is laborious, one section having to be slid along its length into the other in order to engage the retaining formations.
  • the cladding section is secured by means of a barbed element, which projects from the central portion of the metal section, and a retaining lip provided by a free-end portion of a projecting flange of the metal section, one end portion of the cladding being impaled on the barbed element and an opposite end portion, provided by a glazing flange of the cladding, providing a channel in which the retaining lip is located.
  • a barbed element which projects from the central portion of the metal section, and a retaining lip provided by a free-end portion of a projecting flange of the metal section, one end portion of the cladding being impaled on the barbed element and an opposite end portion, provided by a glazing flange of the cladding, providing a channel in which the retaining lip is located.
  • the depth of that part of the cladding section which will receive the barbed element has to be greater than usual in that region, in order to provide a sufficient depth of material to achieve a secure fixing; this can have the undesirable side effect of demanding the use of non-standard window fittings.
  • the cladding section can crack as a result of stresses induced by insertion of the barbed element, which is generally undesirable and could result in the cladding being insecurely held by the metal section.
  • the method is preferably further characterised in that it comprises engaging said one of the lips of the metal section with said resiliently compressible means within said one of the channels, engaging said other of the lips with an outer surface of a channel-providing portion of the cladding section providing said other of the channels, and urging together said other of the lips and said channel-providing portion to cause the lip to slide over said outer surface and enter said other of the channels, the arrangement being such that as the lip slides over said outer surface said one of the lips moves into said one of the channels with compression of said compressible means, and thereafter said compressible means urges said. other of the lips into said other of the channels.
  • the metal and cladding sections may readily be urged together, to force the lip to slide over the outer surface of the cladding section and snap home into the channel, by means of a machine comprising opposed pressure rollers, juxtaposed lengths of the metal and cladding sections being fed through the roll nip with said one of the lips already engaged with the compressible means. High speed assembly by machine can be achieved in this manner.
  • the invention is characterised in that the metal section comprises two oppositely and outwardly projecting retaining lips which are received in two oppositely and inwardly facing channels of cladding section, a resiliently compressible sealing strip being sandwiched in one of said channels between the lip in that channel and the cladding section.
  • a resiliently compressible sealing strip in the form of a resilient neoprene cord is sandwiched in said one of the channels between the lip in that channel and the cladding section.
  • said resiliently compressible means may take any suitable form and might be moulded integrally with the cladding section.
  • the cladding section is preferably of a plastics material, and most preferably a PVC material, but may be of any material of a relatively low thermal conductivity.
  • the distance between the two sets of retaining formations of the clad section can be substantial, which can be of advantage in ensuring correct alignment and stability of a glazing flange provided by the cladding section, and can also allow the use of a relatively thin cladding section since the section may not have to be inherently so stiff. Manufacturing tolerances do not have to be especially close, since the compressible means can accommodate small variations in dimensions. Furthermore a reliable seal between the metal and cladding sections is readily achieved.
  • the clad unequal leg outer frame member shown in Figure 1 comprises metal extruded section 1U and plastics extruded section 12 clipped on to the metal section.
  • the plastics section is of a relatively low thermal conductivity as compared with the metal section.
  • the metal section 10 comprises a generally oblong-rectangular hollow body portion 14. Projecting in opposite directions from opposite sides of the body portion 14, from adjacent opposite ends of the body portion, are a wide flange 16, providing the outer, long, leg of the unequal leg member, and a shorter flange 18 providing a mounting flange. A free-end portion of the mounting flange 18 provides a first retaining lip 20 of the metal section. There is a recess 22 in that end of the body portion 14 from adjacent which the mounting flange projects, and a second retaining lip 24 of the metal section projects into the recess, to project oppositely and outwardly from (i.e. away from) the first lip 20.
  • the plastics cladding section 12 is mounted on the mounting flange 18 of the metal section 10 and provides a glazing flange of the frame member.
  • a double glazing unit 26 is shown, in Figure 1, mounted in a conventional manner, by means of a glazing wedge 28 and a weather- strip 30, between the glazing flange and a glazing bead 32.
  • the glazing bead is mounted by means of opposed glazing ribs 34 and 36 of the metal section.
  • the cladding section 12 provides first and second, oppositely and inwardly facing, channels 38 and 40 adapted to receive the first and second lips 20 and 24 of the metal section.
  • a first channel-providing portion 42 of the plastics section, defining the first channel 38, provides a relatively deep channel whereas a second channel-providing portion 44, defining the second channel 40, provides a relatively shallow channel.
  • a resiliently compressible sealing strip 46 in the form of a resilient neoprene cord is sandwiched in the first channel 38 of the cladding section between an end face of the first lip 20 and a bottom wall of the channel.
  • the seal prevents passage of vapour or condensate between the metal and plastics sections (i.e. in a direction transversely of the lengths of the elongate sections). It will be appreciated that when the frame member is employed, for example, as a horizontal bottom member of a window, the sealing strip 46 will be positioned well above the bottom of a recess 48 (see Figure 1) in which condensed water might collect.
  • FIG. 1 Indicated in chain-dot outline in Figure 1 is the full extent of an alternative cladding section 50 which can be substituted for the cladding section 12 to provide an inner leg of an equal leg frame member.
  • the longer cladding section 50 is secured to the metal section 10 in a similar manner to that in which the shorter section 12 is secured.
  • a glazing-rib projection 52 of the metal section 10 to constitute a second lip of the metal section projecting oppositely and outwardly from the first lip 20.
  • the clad mullion/transom member shown in Figure 2 comprises metal extruded section 54 and two plastics extruded sections 12 which are each the same as that of the unequal leg component of Figure 1.
  • the plastics sections 12 are each mounted on the metal section 54 in the same way as the plastics section 12 is mounted in the unequal leg component, with sealing strips 46 interposed between the metal and the plastics sections.
  • the metal section 54 comprises a recess 58 defined by serrated side walls, and a plastics (for example PVC) sealing strip 60 is introduced into the recess 58 to bridge the gap 56; a good seal can be achieved by pouring a fine stream of solvent down the exposed face of the located sealing strip 60 to form a meniscus, so as to weld together the strip and adjacent portions of the plastics sections 12.
  • a plastics for example PVC
  • Fabrication of the thermally clad metal section shown in Figure 1 will now be described. [Essentially the same method applies to fabrication of the clad mullion/transom shown in Figure 2, and also to attachment of the longer, alternative, cladding section 50 to the metal section 10 of Figure 1.]
  • the neoprene cord 46 is introduced into the bottom of the first channel 38 of the plastics section 12.
  • the first retaining lip 20 of the metal section is then inserted into the first channel to engage the cord 46.
  • the second retaining lip 24 of the metal section is engaged with an outer surface 62 of the second channel-providing portion 44 and the metal and cladding sections are introduced into a roll nip of a machine comprising opposed pressure rollers.
  • the lip 24 is caused to slide over the outer surface 62 and snap into the second channel 40, the lip being urged by the compressed cord 46 to enter the channel 40.
  • the cladding section and the metal section thus become secured together, with the sandwiched cord 46 retaining the lip 24 in the channel 40.
  • the metal extruded sections hereinbefore described are all of an aluminium alloy, and the plastics extruded sections are all of an exterior grade PVC synthetic resin material.
  • suitable materials could be employed for other embodiments of the invention, though in all cases the cladding section needs to be of a relatively low thermal conductivity, as compared with the metal section, in order to provide effective thermal insulation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Load-Bearing And Curtain Walls (AREA)
  • Wing Frames And Configurations (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Insulated Conductors (AREA)
EP81303649A 1980-08-13 1981-08-11 Procédé de fabrication d'un profilé thermiquement isolé pour châssis vitrifiés Expired EP0046084B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81303649T ATE8688T1 (de) 1980-08-13 1981-08-11 Verfahren zur herstellung eines thermisch isolierten metallprofils.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8026428 1980-08-13
GB8026428 1980-08-13

Publications (2)

Publication Number Publication Date
EP0046084A1 true EP0046084A1 (fr) 1982-02-17
EP0046084B1 EP0046084B1 (fr) 1984-07-25

Family

ID=10515439

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81303649A Expired EP0046084B1 (fr) 1980-08-13 1981-08-11 Procédé de fabrication d'un profilé thermiquement isolé pour châssis vitrifiés

Country Status (4)

Country Link
EP (1) EP0046084B1 (fr)
AT (1) ATE8688T1 (fr)
DE (1) DE3165063D1 (fr)
GB (1) GB2081789B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3245066A1 (de) * 1982-12-06 1984-06-07 Ernst 4102 Binningen Koller I-foermiger profilstab
FR2685136A1 (fr) * 1991-12-17 1993-06-18 Legrand Sa Panneau, en particulier pour porte d'armoire, et notamment pour porte d'armoire electrique.

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IE59944B1 (en) * 1988-02-09 1994-05-04 Thermal Profiles Accessories Frame member for supporting a window
GB2292169B (en) * 1994-08-05 1997-10-29 Manse Window Design Ltd Closure member and method of construction
GB9416325D0 (en) * 1994-08-12 1994-10-05 P B Systems Ltd Extension device for an extruded window frame

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1866912U (de) * 1961-03-09 1963-02-07 Georg Schlegel Traegerschiene zur aufnahme von bauelementen.
DE7008627U (de) * 1970-03-10 1970-06-25 Erbsloeh Julius & August Verbundprofil.
DE1957040A1 (de) * 1968-11-15 1970-09-24 Waertsilae Ag Oy Bodenbearbeitungsmaschine,beispielsweise Egge
DE2416273A1 (de) * 1974-04-03 1975-10-16 Pasche Verfahren zur herstellung von profilen fuer fenster-, tueren- und andere rahmenkonstruktionen und vorrichtung sowie profilausbildung zur durchfuehrung des verfahrens
AT341742B (de) * 1970-07-27 1978-02-27 Ernst Ing Nipp Verbundprofil bestehend aus zwei parallel zueinander anzuordnenden profilleisten

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1866912U (de) * 1961-03-09 1963-02-07 Georg Schlegel Traegerschiene zur aufnahme von bauelementen.
DE1957040A1 (de) * 1968-11-15 1970-09-24 Waertsilae Ag Oy Bodenbearbeitungsmaschine,beispielsweise Egge
DE7008627U (de) * 1970-03-10 1970-06-25 Erbsloeh Julius & August Verbundprofil.
AT341742B (de) * 1970-07-27 1978-02-27 Ernst Ing Nipp Verbundprofil bestehend aus zwei parallel zueinander anzuordnenden profilleisten
DE2416273A1 (de) * 1974-04-03 1975-10-16 Pasche Verfahren zur herstellung von profilen fuer fenster-, tueren- und andere rahmenkonstruktionen und vorrichtung sowie profilausbildung zur durchfuehrung des verfahrens

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3245066A1 (de) * 1982-12-06 1984-06-07 Ernst 4102 Binningen Koller I-foermiger profilstab
FR2685136A1 (fr) * 1991-12-17 1993-06-18 Legrand Sa Panneau, en particulier pour porte d'armoire, et notamment pour porte d'armoire electrique.
ES2039170A2 (es) * 1991-12-17 1993-08-16 Legrand Sa Panel, en particular para puerta de armario, y especialmente para puerta de armario electrico.

Also Published As

Publication number Publication date
ATE8688T1 (de) 1984-08-15
DE3165063D1 (en) 1984-08-30
EP0046084B1 (fr) 1984-07-25
GB2081789A (en) 1982-02-24
GB2081789B (en) 1983-12-14

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