EP3184725A1 - Espaceur destiné à une unité de vitrage multiple et ledit vitrage - Google Patents

Espaceur destiné à une unité de vitrage multiple et ledit vitrage Download PDF

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Publication number
EP3184725A1
EP3184725A1 EP15202524.3A EP15202524A EP3184725A1 EP 3184725 A1 EP3184725 A1 EP 3184725A1 EP 15202524 A EP15202524 A EP 15202524A EP 3184725 A1 EP3184725 A1 EP 3184725A1
Authority
EP
European Patent Office
Prior art keywords
spacer
wall section
desiccant
spacer profile
centerline
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Withdrawn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
EP15202524.3A
Other languages
German (de)
English (en)
Inventor
Kristian MØLLER
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.)
VKR Holding AS
Original Assignee
VKR Holding AS
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 VKR Holding AS filed Critical VKR Holding AS
Priority to EP15202524.3A priority Critical patent/EP3184725A1/fr
Publication of EP3184725A1 publication Critical patent/EP3184725A1/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Withdrawn legal-status Critical Current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
    • 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
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/663—Elements for spacing panes
    • E06B3/66309—Section members positioned at the edges of the glazing unit
    • E06B3/66361—Section members positioned at the edges of the glazing unit with special structural provisions for holding drying agents, e.g. packed in special containers

Definitions

  • the present invention relates to a spacer for a multiple glazing unit, a method of manufacturing the spacer and a glazing unit comprising the spacer
  • insulating glazing units or multilayered glazing units also including insulating windows, in particularly multilayered windows
  • the glass sheets are kept apart by the aforementioned small spacing typically using adequately sized spacers in combination with flexible seals of mastic and with air- and water tight diffusion seals, where the spacers are positioned at the perimeter of the windows.
  • a spacer comprising a flexible spacer profile and desiccant can be constructed, which spacer is easy to manufacture, yet surprisingly flexible and capable of working in conjunction with the glass sheets of an insulating window comprising the spacer of the invention.
  • a spacer (1) for a multiple glazing unit comprising: a desiccant insert (3) comprising a desiccant material (31) interspaced between a top cover (32) and a bottom cover (33); and a flexible spacer profile (2) arranged to form a groove which can receive and partially enclose the desiccant insert (3); wherein the flexible spacer profile (2) comprises a groove bottom (21) and two opposing groove walls (22a,23a,22b,23b) and defines a centerline (5) perpendicular to the grove bottom (21) around which centerline (5) the spacer (1) is substantially symmetrical; the two opposing groove walls (22a,23a,22b,23b) each comprises a first wall section (23a,23b) arranged substantially perpendicular to the groove bottom (21) and substantially parallel to the centerline (5), and a curved wall section (22a,22b) interspaced between the groove bottom (21) and the respective first wall section (23a,23b
  • a multiple glazing unit comprising: two vitreous material sheets (6a,6b) positioned in a face-to-face, spaced apart relationship and defining a gas space (9) therebetween and a peripheral edge; at least one spacer (1) as defined according to the first aspect and embodiments thereof disposed between the two vitreous material sheets (6a,6b), along the entire peripheral edge thereof, for maintaining the gas space (9) therebetween; wherein a primary seal (7a,7b) comprising a poly-iso-butylene based adhesive is disposed respectively on each vitreous material sheet (6a,6b) for affixing each respective first wall section (23a,23b) to each respective vitreous material sheet (6a,6b); and a secondary seal (8a,8b) comprising a mastic is disposed respectively on each vitreous material sheet (6a,6b) for affixing each respective curved wall section (22a,22b) to each respective vitreous material sheet (6a,6b).
  • the spacer (1) of the invention comprises as described above two main elements, a flexible spacer profile (2) and a desiccant insert (3).
  • the spacer itself is a construct which is extremely elongated in one direction in order to be adaptable to the periphery of a multiple glazing unit.
  • the spacer in principle can be of any length in the one extremely elongated direction.
  • Figure 1 there is detailed a cross-section of spacer according to the present invention wherein it is to be understood that the out of paper direction corresponds to the one extremely elongated direction.
  • a spacer (1) for a multiple glazing unit comprising: a desiccant insert (3) comprising a desiccant material (31) interspaced between a top cover (32) and a bottom cover (33); and a flexible spacer profile (2) arranged to form a groove which can receive and partially enclose the desiccant insert (3); wherein the flexible spacer profile (2) comprises a groove bottom (21) and two opposing groove walls (22a,23a,22b,23b) and defines a centerline (5) perpendicular to the grove bottom (21) around which centerline (5) the spacer (1) is substantially symmetrical; the two opposing groove walls (22a,23a,22b,23b) each comprises a first wall section (23a,23b) arranged substantially perpendicular to the groove bottom (21) and substantially parallel to the centerline (5), and a curved wall section (22a,22b) interspaced between the groove bottom (21) and the respective first wall section (23a,23b
  • the desiccant insert (3) for use with the invention comprises a desiccant material (31) interspaced between a top cover (32) and a bottom cover (33).
  • the desiccant insert (3) is manufactured as a single continuous unit which has a single dimension which is extremely elongated in one direction in order to be adaptable to the periphery of a multiple glazing unit.
  • the spacer in principle can be of any length in the one extremely elongated direction.
  • the desiccant material (31) for use comprised in the desiccant insert (3) preferably shall comprise a zeolite and/or a silica gel.
  • the desiccant material is a woven material comprising a zeolite and/or a silica gel.
  • top cover (32) and/or the bottom cover (33) for use comprised in the desiccant insert (3) preferably shall be manufactured from a poly-ester. It is possible to dispense with the top cover (32) and the bottom cover (33) from the spacer (1), or just one or the other cover. However, these embodiments are not preferred in general for being unsuitable for automated multiple glazing unit assembly.
  • the dimension of the top cover (32) perpendicular to the aforementioned centerline serves to maintain constructional stability of the spacer during adhesion of the spacers to the vitreous sheets, such that the spacers do not become unwantedly compressed with loss of spring-like properties as a result.
  • the desiccant insert (3) When the desiccant insert (3) has been assembled, e.g. as a continuous roll of desiccant material (31) sandwiched between the top (32) and the bottom cover (33), it can be supplied with an adhesive on the bottom cover (33) in e.g. a continuous process during assembly and directly mounted on the groove bottom (21) of the flexible spacer profile (2) by roll pressing the flexible spacer profile (2) and desiccant insert (3) together thereby affixing these parts together (cf. Figure 3 ). The adhesive will then form an adhesive layer (4) between the groove bottom (21) and the bottom cover (33) but does not in itself contribute to the desired spacer properties.
  • the desiccant insert (3) is depicted as a trapezoid construct with the shorter of the two parallel sides of the trapezoid construct serving as bottom and comprising the bottom cover (33) in contact with adhesive and groove bottom (21). Due to the presence of the curved wall sections (22a,22b) comprised in the flexible spacer profile (2) such an orientation and shape of the desiccant insert (3) serves to maximize the content of the desiccant insert (3) received inside the groove formed by the flexible spacer profile (2).
  • this geometric shape is, while representing a preferred embodiment, merely exemplary for most uses where the amount of desiccant material received inside the groove is not an issue of concern.
  • the desiccant material (31) When the spacer is unperturbed by external forces the desiccant material (31) is not in contact with the flexible spacer profile (2) over at least a part of the desiccant insert (3). Thereby it is assured that any moisture present in a gaseous phase surrounding the desiccant material (31) in the assembled spacer and/or multiple glazing unit (10) of the invention can interact with the desiccant material and become absorbed.
  • a flexible spacer profile (2) is arranged to form a groove which can receive and partially enclose the desiccant insert (3). This is detailed schematically in Figure 1 where the desiccant insert (3) can be seen received and partially enclosed by the flexible spacer profile (2).
  • the flexible spacer profile (2) comprises a groove bottom (21) and two opposing groove walls (22a,23a,22b,23b) and defines a centerline (5) perpendicular to the grove bottom (21) around which centerline (5) the spacer (1) and flexible spacer profile (2), is substantially symmetrical. It is the purpose of the flexible spacer profile (2) to counter the movement of the vitreous material sheets (6a,6b) when these are moved due to an influencing force.
  • the groove bottom serves to give stability against compression and expansion of the spacer (1), and in an embodiment, the groove bottom (21) is corrugated for increased mechanical strength.
  • the two opposing groove walls (22a,23a,22b,23b) each comprises a first wall section (23a,23b) arranged substantially perpendicular to the groove bottom (21) and substantially parallel to the centerline (5), and a curved wall section (22a,22b) interspaced between the groove bottom (21) and each respective first wall section (23a,23b).
  • the first wall sections (23a,23b) can form an angle to the centerline (5) which does not exceed 25°, but preferably does not exceed 10°.
  • first wall sections (22a,22b) shall be substantially parallel to the centerline (5) such that compression of the spacer (1) is transferred to the flexible spacer profile (2) over a substantial portion of the first wall sections (22a,22b). This effect is lost if the first wall sections form angles to the centerline (5) which are too open.
  • the flexible spacer profile (2) shall comprise curved wall sections (22a,22b) interspaced between the groove bottom (21) and each first wall section (23a,23b); wherein each curved wall section (22a,22b) extends away from the centerline (5) yet is curved towards the centerline over most or all of their extension.
  • the flexible spacer profile (2) is endowed with additional flexibility over the flexible spacer profiles of the prior art and a spacer (1) enabled with improved properties of movement for moving with the movement of the vitreous material sheets (6a,6b) when these are moved due to an influencing force; while at the same time, the open groove shape of the flexible spacer profile (2) asserts the option for easy assembly of flexible spacer profile (2) and desiccant insert (3).
  • a further, and important, advantage of the curved shape of the curved wall sections (22a,22b) is; that the forces acting on the aforementioned first wall sections (23a,23b) are improvedly transferred via the curvature of the curved wall sections into the groove bottom (21) and therefrom into the wall of a window opening comprising an installed multiple glazing unit (10) of the invention.
  • the groove walls of the spacers of the prior art are substantially linear in nature, even when made up from two or more groove wall sections in connection. Thereby a significant force transport between two opposing vitreous sheets is retained, being transferred via the spacers of the prior art. By following the teachings given herein, this transport can be reduced or minimized.
  • curved towards shall be taken to mean that if an imaginary line is drawn from the contact line of the groove bottom (21) with a curved wall section (22a,22b) to the contact line of the first wall section (23a,23b) interspaced by that same curved wall section (22a,22b), then most or all of that same curved wall section (22a,22b) is closer by projection to the centerline (5) than the imaginary line drawn.
  • more than half (i.e. most) of the curved wall sections (22a,22b) shall be curved as described.
  • the flexible spacer profile (2) is a metal spacer profile, preferably a metal spacer profile comprising aluminum or comprising stainless steel.
  • the flexible spacer profile (2) is preferably formed integral by bending a single metal plate from a continuous source (88) of spacer profile material (89); and the flexible spacer profile (2) preferably has a dimension of length which does not exceed 0.2 mm, preferably does not exceed 0.1 mm.
  • the width of the spacer profile material (89) should preferably not exceed 50 mm and thus the dimension of length which does not exceed 0.2 mm becomes the thickness of the spacer profile material (89).
  • Suitable continuous sources (88) of spacer profile material (89) could be a roll of spacer profile material (89), e.g. a roll of stainless steel having a width not exceeding 50 mm and a thickness not exceeding 0.2 mm.
  • a multiple glazing unit comprising: two vitreous material sheets (6a,6b) positioned in a face-to-face, spaced apart relationship and defining a gas space (9) therebetween and a peripheral edge; at least one spacer (1) as defined previously disposed between the two vitreous material sheets (6a,6b), along the entire peripheral edge thereof, for maintaining the gas space (9) therebetween; wherein a primary seal (7a,7b) comprising a poly-iso-butylene based adhesive is disposed respectively on each vitreous material sheet (6a,6b) for affixing each respective first wall section (23a,23b) to each respective vitreous material sheet (6a,6b); and a secondary seal (8a,8b) comprising a mastic is disposed respectively on each vitreous material sheet (6a, 6b) for affixing each respective curved wall section (22a,22b) to each respective vitreous material sheet
  • Such multiple glazing units are commonly known in the art as detailed above, however due to the presence of the spacer (1) of the present invention a number of advantages are achieved over multiple glazing units of the prior art by the multiple glazing unit (10) of the present invention.
  • improved lifetime of the multiple glazing unit (10) is obtained as the spacer (1) of the invention is better at accommodating the forces influencing the vitreous material sheets (6a,6b) and hence in preserving the gas seal between exterior and the mentioned gas space (9) of the multiple glazing unit (10).
  • the poly-iso-butylene (PIB) adhesive is located adjacent the gas space (9) such that an improved moisture seal can be obtained.
  • the mastics as is customary in the art are furthest from the gas space (9) and, contrary to the poly-iso-butylene, are not in contact with the gas comprised in the gas space (9).
  • the gas space (9) comprises argon and in another preferred embodiment the mastic is selected from polyurethane, polysulfide, and/or silicone mastics.
  • a multiple glazing unit (10) of the invention may further comprise at least one extra vitreous material sheet (6a,6b) and at least one further spacer (1) as detailed herein, wherein the spacer (1) is mounted along an entire peripheral edge of the vitreous material sheets (6a,6b) using further primary (7a,7b) and secondary seals (8a,8b) thereby creating at least one further gas space (9) in the multiple glazing unit (10).
  • FIG. 3 there is disclosed a manufacturing line (80) for manufacturing a spacer (1) according to the invention in accordance with the below disclosed method of manufacturing a spacer (1) according to the invention.
  • a method of continuously manufacturing a spacer (1) comprising: a) providing a continuous source (88) of spacer profile material (89) and a continuous source (87) of desiccant insert (3); b) applying at a position along said manufacturing line (80) said desiccant insert (3) onto said spacer profile material (89) from said continuous source (87) of desiccant insert (3); c) providing said spacer profile material (89) to a first roll forming section (81) where, in a first roll forming operation a first curved wall section (22a,22b) is formed, and to a second roll forming section (82) where a second and opposite curved wall section (22a,22b) is formed in a second roll forming operation; d) and providing said spacer profile material (89) to a first (83), a second (84), a third (85), and a fourth (86) bending sections where, in respective bending operations, respective bends between
  • roll forming (81,82) and bending (83,84,85,86) operations are well known in the art and the skilled person is considered to be capable of designing a manufacturing line (80) capable of executing the above method once it has been disclosed to him.
  • the desiccant insert (3) shall be applied onto the spacer profile material (89) prior to roll forming (81,82) and bending (83,84,85,86), but this requirement can be relaxed, as e.g. shown in Figure 3 , in some embodiments albeit at some extra effort.
  • the desiccant insert (3) is manufactured prior to manufacture of the spacer (1), and can therefore be supplied to the manufacturing process for the spacer (1) continuously, e.g. from a roll of desiccant insert (3).
  • the desiccant insert (3) onto the spacer profile material (89) it suffices to bring them firmly into contact, e.g. by press contacting the components between rollers, in the presence of the aforementioned adhesive (4), and this combined product is then fed to the roll forming (81,82) and bending (83,84,85,86) sections for forming the spacer as detailed above.
  • the embodiment shown in Figure 3 relates to a situation where a the desiccant insert (3) is applied after a first curved wall section (22a,22b) has been manufactured in the spacer profile material (89).
  • the first curved wall section (22a,22b) can e.g. serve as positioning guide for the desiccant insert (3) for increased precision in the positioning of the desiccant insert (3), but as mentioned, at increased complexity of manufacturing.
  • a manufacturing line (80) for manufacturing a spacer (1) comprising a first roll forming section (81) and a second roll second roll forming section (82); a first (83), a second (84), a third (85), and a fourth (86) bending sections; where, in said manufacturing line (80), a continuous source (88) of spacer profile material (89) and a continuous source (87) of desiccant insert (3) are provided; at a position along said manufacturing line (80) said desiccant insert (3) is applied onto said spacer profile material (89) from said continuous source (87) of desiccant insert (3); said spacer profile material (89) is provided to a first roll forming section (81) where, in a first roll forming operation a first curved wall section (22a,22b) is formed, and to a second roll forming section (82) where a second and opposite curved wall section (22a,22b) is formed in a

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
EP15202524.3A 2015-12-23 2015-12-23 Espaceur destiné à une unité de vitrage multiple et ledit vitrage Withdrawn EP3184725A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15202524.3A EP3184725A1 (fr) 2015-12-23 2015-12-23 Espaceur destiné à une unité de vitrage multiple et ledit vitrage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15202524.3A EP3184725A1 (fr) 2015-12-23 2015-12-23 Espaceur destiné à une unité de vitrage multiple et ledit vitrage

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EP3184725A1 true EP3184725A1 (fr) 2017-06-28

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EP15202524.3A Withdrawn EP3184725A1 (fr) 2015-12-23 2015-12-23 Espaceur destiné à une unité de vitrage multiple et ledit vitrage

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019122278A1 (fr) * 2017-12-22 2019-06-27 Saint-Gobain Glass France Espaceur avec structure absorbante d'humidite et procede de fabrication correspondant
FR3075853A1 (fr) * 2017-12-22 2019-06-28 Saint-Gobain Glass France Espaceur avec structure absorbante d'humidite et procede de fabrication correspondant

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0223511A2 (fr) * 1985-11-07 1987-05-27 Indal Limited Cadre espaceur pour vitrage multiple
US5640815A (en) 1994-06-30 1997-06-24 Glaverbel Multiple glazing unit
US20020073530A1 (en) 1998-08-14 2002-06-20 Ferri Louis Anthony Dispensable non-adhesive desiccated matrix system for insulating glass units
WO2005075783A1 (fr) * 2004-02-03 2005-08-18 Karl Lenhardt Vitre isolante et son procede de production
US20070077376A1 (en) 2005-10-04 2007-04-05 Masaki Mamiya Double glazing
US20130305656A1 (en) 2011-02-08 2013-11-21 Saint- Gobain Glass France Spacer, connector and insulating glazing unit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0223511A2 (fr) * 1985-11-07 1987-05-27 Indal Limited Cadre espaceur pour vitrage multiple
US5640815A (en) 1994-06-30 1997-06-24 Glaverbel Multiple glazing unit
US20020073530A1 (en) 1998-08-14 2002-06-20 Ferri Louis Anthony Dispensable non-adhesive desiccated matrix system for insulating glass units
WO2005075783A1 (fr) * 2004-02-03 2005-08-18 Karl Lenhardt Vitre isolante et son procede de production
US20070077376A1 (en) 2005-10-04 2007-04-05 Masaki Mamiya Double glazing
US20130305656A1 (en) 2011-02-08 2013-11-21 Saint- Gobain Glass France Spacer, connector and insulating glazing unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019122278A1 (fr) * 2017-12-22 2019-06-27 Saint-Gobain Glass France Espaceur avec structure absorbante d'humidite et procede de fabrication correspondant
FR3075853A1 (fr) * 2017-12-22 2019-06-28 Saint-Gobain Glass France Espaceur avec structure absorbante d'humidite et procede de fabrication correspondant

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