EP2884037A1 - Bande de glaçage à capsule - Google Patents

Bande de glaçage à capsule Download PDF

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Publication number
EP2884037A1
EP2884037A1 EP14198085.4A EP14198085A EP2884037A1 EP 2884037 A1 EP2884037 A1 EP 2884037A1 EP 14198085 A EP14198085 A EP 14198085A EP 2884037 A1 EP2884037 A1 EP 2884037A1
Authority
EP
European Patent Office
Prior art keywords
glazing strip
density
ridge
crown
rubber
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.)
Withdrawn
Application number
EP14198085.4A
Other languages
German (de)
English (en)
Inventor
Per Arnqvist
Markku Björkqvist
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.)
Trelleborg Sealing Profiles Sweden AB
Original Assignee
Trelleborg Sealing Profiles Sweden AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Trelleborg Sealing Profiles Sweden AB filed Critical Trelleborg Sealing Profiles Sweden AB
Publication of EP2884037A1 publication Critical patent/EP2884037A1/fr
Withdrawn legal-status Critical Current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
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
    • E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
    • E06B7/23—Plastic, sponge rubber, or like strips or tubes
    • E06B7/2301—Plastic, sponge rubber, or like strips or tubes without an integrally formed part for fixing the edging
    • 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
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
    • E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
    • E06B7/23—Plastic, sponge rubber, or like strips or tubes
    • E06B7/2314—Plastic, sponge rubber, or like strips or tubes characterised by the material
    • 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
    • E06B2003/26349—Details of insulating strips
    • E06B2003/26387—Performing extra functions
    • E06B2003/26389—Holding sealing strips or forming sealing abutments

Definitions

  • the present invention relates to a crown-type glazing strip for sealing between a window sash and a window pane.
  • Windows are often manufactured by positioning a window pane in a window sash or casing, and securing the window pane to the window sash by attaching a bead or second window sash part to the casing, so as to hold the window pane in place.
  • a glazing strip of rubber is placed between the window pane and the sash, as well as between the window pane and the bead/second sash part.
  • the purpose of the glazing strip may be manifold. By way of example, it may provide a somewhat flexible suspension of the window pane, permitting thermal expansion; it may protect the window pane against breakage; and it may seal the window against moist and wind.
  • a glazing strip may have a sealing face for abutting the face of the window pane.
  • the sealing face may be provided with a plurality of longitudinal ridges extending along the length of the strip such that, in profile/cross-section, the sealing face may somewhat resemble a crown.
  • Such glazing strips are in this disclosure referred to as crown-type glazing strips.
  • An exemplary crown-type glazing strip is illustrated in US 3155205 .
  • a crown-type glazing strip for sealing between a window sash and a window pane, the glazing strip comprising a pair of side ridges, extending along the length of the glazing strip, for sealingly abutting a face of the window pane; and an intermediate ridge, located between the side ridges and extending along the length of the glazing strip, for sealingly abutting said face of the window pane, wherein at least a portion of each side ridge consists of cell rubber of a first density; at least a portion of the intermediate ridge consists of cell rubber of a second density; and said first density is higher than said second density.
  • the side ridges are relatively firm and provide the glazing strip with the desired mechanical stability to take up loads.
  • the relatively lower density of the intermediate ridge portion makes the intermediate ridge more flexible, thereby improving the tightness of the seal's engagement with any dust, fouling or defects on the surface of the window pane, resulting in a tighter window.
  • the high flexibility of the intermediate ridge will allow the intermediate ridge to better follow the motion of the window pane during conditions of fast alternating wind loads.
  • less rubber material can be used without compromising the strip's function, which results in a lighter and less expensive glazing strip.
  • said cell rubber of a first density is a medium-density cell rubber; and said cell rubber of a second density is a low-density cell rubber.
  • the use of low-density cell rubber makes the entire glazing strip more flexible than glazing strips of prior art, which makes it easier to e.g. bend the glazing strip around corners. This reduces the need for cutting the strip during installation, which minimizes the risk of wind and water penetrating the seal formed by the glazing strip at the cuts, as well as provides for easier installation.
  • the elevated flexibility of low-density cell rubber increases the tightness of the intermediate ridge against any imperfect surface of the window pane even further, and results in an even lighter and less expensive glazing strip.
  • each of said side ridges the respective at least a portion of the side ridge consisting of cell rubber of said first density extends across the greater part of the height of the respective side ridge.
  • the height of each side ridge is defined by the distance from its top to the glazing strip's bottom surface for mounting to a window sash.
  • said at least a portion of the intermediate ridge consisting of cell rubber of said second density forms the top of the intermediate ridge.
  • said at least a portion of the intermediate ridge consisting of cell rubber of said second density extends across the greater part of the height of the intermediate ridge.
  • Such a design assists in maintaining the material properties of the intermediate ridge also when the glazing strip is substantially compressed; otherwise, the compression of the intermediate ridge will be concentrated to the most resilient portion of the intermediate ridge's height; i.e., to the relatively lower-density portion(s).
  • the height of the intermediate ridge is defined by the distance from its top to the glazing strip's bottom surface for mounting to a window sash.
  • the side ridges and the intermediate ridge extend along, and are held together by, a strip body consisting of cell rubber of said second density.
  • the intermediate ridge and the strip body may be homogeneously formed in the same extrusion step.
  • the side ridges are chemically bonded to the strip body, for instance by vulcanization. Thereby, increased durability of the glazing strip may be obtained.
  • At least 60% by volume of the glazing strip consists of cell rubber of said second density.
  • the top of each side ridge is higher than the top of the intermediate ridge.
  • the total height of a glazing strip is compressed by about 25% when squeezed between a window pane and a window sash.
  • the lower height of the intermediate ridge results in the intermediate ridge being less compressed, thereby maintaining the mechanical properties of the intermediate ridge closer to those of an uncompressed low-density rubber also when in use.
  • each of said cell rubbers of first and second densities comprises ethylene propylene diene monomer, EPDM, rubber.
  • the glazing strip further comprises a substantially flat mounting surface, provided with adhesive, for attaching the glazing strip to said window sash.
  • the glazing strip further comprises a mounting foot extending along the length of the glazing strip.
  • said cell rubber of a first density is a closed-cell rubber.
  • said cell rubber of a second density is a closed-cell rubber.
  • a method of manufacturing a crown-type glazing strip for sealing between a window sash and a window pane comprising extruding a first rubber mixture comprising a blowing agent to form a glazing strip body with a first ridge; and extruding a second rubber mixture comprising a blowing agent onto the glazing strip body on either side of the first ridge to form a pair of side ridges, said second rubber mixture being different from said first rubber mixture; expanding the glazing strip body and the first ridge to a cell rubber of a first density; and expanding the side ridges to a cell rubber of a second density, said second density being higher than said first density.
  • said glazing strip body and first ridge, and said side ridges are expanded to form closed-cell rubber.
  • the method further comprises vulcanizing the crown-type glazing strip to form chemical bonds between the glazing strip body and the side ridges.
  • Fig. 1 illustrates a crown-type glazing strip 10 for sealing between a window sash and a window pane.
  • the glazing strip 10 which has the profile of an "E"
  • the mounting surface 14 is provided with an adhesive layer 16 for attaching the glazing strip 10 to e.g. a window sash.
  • the ridges 18a-b, 20 rise from the body 12 in a direction facing away from the mounting surface 14, and define a sealing face 23 for sealingly abutting the face of the window pane.
  • the body 12 and intermediate ridge 20 are integrally formed of a low-density closed-cell rubber, i.e. a closed-cell rubber having a density of less than about 0,40 kg/dm 3 , whereas the material composition of the side ridges 18a-b differs from that of the body 12 and the intermediate ridge 20.
  • the side ridges 18a-b are formed of a cell rubber of a relatively higher density, such as a medium-density closed-cell rubber having a density of between about 0,40 kg/dm 3 and 0,80 kg/dm 3 .
  • the elastomer of the body 12 and the intermediate ridge 20 as well as of the side ridges 18a-b may be any suitable elastomer type, or combination of elastomer types, known to those skilled in the art.
  • ethylene propylene diene monomer (EPDM) rubber is very well suited for glazing strips, and may be used for forming low-density closed-cell rubber. Thanks to the relatively higher density of the cell rubber of the side ridges 18a-b, the side ridges 18-b are relatively firm and provide the glazing strip 10 with the desired mechanical stability to take up loads.
  • Fig. 2a illustrates the glazing strip 10 as attached to a glazing strip mounting surface 22 of a window sash 24.
  • the mounting surface 22 of the window sash 24 is parallel with and abuts the mounting surface 14 ( Fig. 1 ) of the glazing strip 10.
  • a window pane 26, a large face 28 of which is essentially parallel to the glazing strip mounting surface 22 of the window sash 24, is placed onto the sealing face 23 ( Fig. 1 ) of the glazing strip 10.
  • the window pane 26 does not yet apply any pressure onto the glazing strip 10; i.e., the glazing strip 10 is still in an uncompressed state.
  • Each side ridge 18a-b has a height H1, which in the illustrated example is the same as the total height of the glazing strip 10, above the mounting surface 22 of the window sash 24.
  • the intermediate ridge 20 has a height H2 above the mounting surface 22 of the window sash 24, said height H2 being lower than the height H1 of the side ridges.
  • the relatively higher-density cell rubber portions 19a-b of the side ridges 18a-b extend across a main part of the height H1 of the side ridges 18a-b, whereas the relatively lower-density cell rubber portion 21 of the intermediate ridge 20 extends across essentially the entire height H2 of the intermediate ridge 20.
  • Fig. 2b illustrates the same view as Fig. 2a after compressing the glazing strip 10.
  • the glazing strip 10 has been compressed by about 25%, i.e. its height H3 has been reduced to about 75% of its height H1 when unloaded ( Fig. 2a ). Thanks to the intermediate ridge 20 being lower than the side ridges 18a-b, when the glazing strip 10 is unloaded ( Fig.
  • the cell rubber of the intermediate ridge 20 is less compressed than the cell rubber of the side ridges 18a-b when in the loaded state illustrated in Fig. 2b .
  • the mechanical properties of the intermediate ridge 20 such as flexibility, resilience, and aptness to respond to e.g. fluctuating wind loads onto the window pane, do not differ very much between the unloaded ( Fig. 2a ) and compressed ( Fig. 2b ) states.
  • the side ridges 18a-b as well as the intermediate ridge 20 are made of cell rubber, they will, thanks to the good thermal insulation properties of cell rubber, thermally insulate the window sash 24 from the window pane 26.
  • the glazing strip 10 will be flexible enough to be bent around corners, if so desired.
  • the glazing strip 10 may be manufactured by extruding the body 12 and intermediate ridge 20 from a first rubber mixture; and extruding the side ridges 18a-b onto to the body 12, on either sides of the intermediate ridge 20, from a second rubber mixture.
  • the first and second rubber mixtures may be composed such that, when the strip 10 is expanded, the first rubber mixture will form a low-density cell rubber, and the second rubber mixture will form a cell rubber of a higher density.
  • the body 12, the intermediate ridge 20, and the side ridges 18a-b may be formed in separate extrusion steps, or they may be co-extruded.
  • the body 12, the intermediate ridge 20, and the side ridges 18a-b may be vulcanized, e.g. in a hot bath of molten salt, to form chemical bonds within and between themselves.
  • the vulcanized glazing strip may, after vulcanization, be cooled and cleaned in a bath of e.g. water, in the manner known to those skilled in the art
  • Fig. 3 illustrates a second embodiment of a crown-type glazing strip 110 for sealing between a window sash and a window pane.
  • the glazing strip 110 comprises a body 112 with a flat mounting surface 14.
  • Two side ridges 118a, 118b are integrally formed with the body 112, and extend along the length of the glazing strip 110.
  • Two intermediate ridges 120a, 120b are located between the side ridges 118a-b and extend along the length of the glazing strip 110.
  • the ridges 118a-b, 120a-b rise from the body 112 in a direction facing away from the mounting surface 14, for sealingly abutting the face of the window pane.
  • the intermediate ridges 120a-b are formed of a relatively lower-density cell rubber, such as a low-density cell rubber, whereas the body 112 and side ridges 118a-b are formed of a cell rubber of a relatively higher density, such as a medium-density cell rubber.
  • the relatively higher-density cell rubber portions 119a-b of the side ridges 118a-b extend across the entire height of the side ridges 118a-b
  • the relatively lower-density cell rubber portions 121 a-b of the intermediate ridges 120a-b extend across just more than half the height of the intermediate ridges 120a-b.
  • Fig. 4 illustrates a third embodiment of a crown-type glazing strip 210 for sealing between a window sash and a window pane.
  • the glazing strip 210 comprises a body 212 with a flat mounting surface 14.
  • the mounting surface 14 is provided with a mounting foot 215 for attaching the glazing strip 210 to a mounting groove (not shown).
  • Two side ridges 218a, 218b, and an intermediate ridge 220 located between the side ridges 218a-b, extend along the length of the glazing strip 210.
  • the ridges 218a-b, 220 rise from the body 212 in a direction facing away from the mounting surface 14, for sealingly abutting the face of the window pane.
  • each side ridge 218a-b are homogeneously made of low-density cell rubber.
  • each side ridge comprises a respective internal reinforcing member 219a-b, which extends along the length of the glazing strip 210.
  • the reinforcement members 219a-b consist of a cell rubber of relatively higher density, and thereby provide the respective side ridges 218a-b with increased stability and ability to withstand compressive loads.
  • the reinforcement members 219a-b extend across about a third of the height of the side ridges 218a-b, whereas the portion 221 of the intermediate ridge 220 consisting of relatively lower-density cell rubber extends across about three quarters of the intermediate ridge's 220 height.
  • the glazing strip 210 will be very flexible, and may e.g. allow being bent around 90° corners without cutting.
  • a hole 230 which runs along the length of the glazing strip 210, increases the flexibility of the glazing strip 210 even further.
  • the glazing strip 210 may be formed by co-extrusion of two different rubber mixtures into the illustrated cross-section of Fig. 4 .
  • mounting foot 215 is illustrated as being made of cell rubber, it may be preferred that it be of solid rubber, in order to facilitate mounting in a groove.
  • a glazing strip may consist entirely of low-density cell rubber of two different densities: a higher density for the side ridges, and a lower density for the intermediate ridge.
  • closed-cell rubber may be preferred, also open-cell rubber glazing strips are covered.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
EP14198085.4A 2013-12-16 2014-12-16 Bande de glaçage à capsule Withdrawn EP2884037A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1351505 2013-12-16

Publications (1)

Publication Number Publication Date
EP2884037A1 true EP2884037A1 (fr) 2015-06-17

Family

ID=52231843

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14198085.4A Withdrawn EP2884037A1 (fr) 2013-12-16 2014-12-16 Bande de glaçage à capsule

Country Status (1)

Country Link
EP (1) EP2884037A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155205A (en) 1962-04-09 1964-11-03 E K Geyser Company Metal window sash
EP1835121A2 (fr) * 2006-03-16 2007-09-19 Trelleborg Building Systems AB Bande d'étanchéité
EP2369116A2 (fr) * 2010-03-23 2011-09-28 SCHÜCO International KG Profil d'étanchéité

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155205A (en) 1962-04-09 1964-11-03 E K Geyser Company Metal window sash
EP1835121A2 (fr) * 2006-03-16 2007-09-19 Trelleborg Building Systems AB Bande d'étanchéité
EP2369116A2 (fr) * 2010-03-23 2011-09-28 SCHÜCO International KG Profil d'étanchéité

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