EP3728777A1 - Espaceur avec structure absorbante d'humidite et procede de fabrication correspondant - Google Patents
Espaceur avec structure absorbante d'humidite et procede de fabrication correspondantInfo
- Publication number
- EP3728777A1 EP3728777A1 EP18822385.3A EP18822385A EP3728777A1 EP 3728777 A1 EP3728777 A1 EP 3728777A1 EP 18822385 A EP18822385 A EP 18822385A EP 3728777 A1 EP3728777 A1 EP 3728777A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spacer
- absorbent
- absorbent unit
- unit
- moisture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 125000006850 spacer group Chemical group 0.000 title claims abstract description 116
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000011521 glass Substances 0.000 claims abstract description 21
- 230000002745 absorbent Effects 0.000 claims description 81
- 239000002250 absorbent Substances 0.000 claims description 81
- 238000000034 method Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000004026 adhesive bonding Methods 0.000 claims description 10
- 239000004033 plastic Substances 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 9
- 239000011230 binding agent Substances 0.000 claims description 7
- 238000005304 joining Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000011358 absorbing material Substances 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 4
- 239000012943 hotmelt Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 235000011837 pasties Nutrition 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 239000011148 porous material Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 229920002319 Poly(methyl acrylate) Polymers 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000010457 zeolite Substances 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
- E06B3/66—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
-
- 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
- E06B3/66323—Section members positioned at the edges of the glazing unit comprising an interruption of the heat flow in a direction perpendicular to the unit
-
- 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
- E06B3/667—Connectors therefor
Definitions
- the present disclosure relates to a spacer for insulating glazing and a method of manufacturing a spacer for insulating glass.
- an insulating glazing unit can be obtained by joining a rigid spacer frame to the periphery of two glass sheets.
- the spacer frame is conventionally manufactured either by successive bends of a straight spacer, or by angular assembly at their ends of straight spacers, so as to obtain for example a rectangular frame.
- the spacer frame delimits an internal cavity between the glass sheets, said cavity forming an insulating blade of air or a gas that is less heat-conductive than air, for example argon, which makes it possible to limit the losses. due to conduction or convection.
- the spacer frame contains a moisture-absorbing product, also called desiccant, intended to absorb the moisture present inside the glazing, especially just after mounting the glazing.
- desiccant a moisture-absorbing product
- this moisture-absorbing product is typically in the form of a powder, filling the interior space of the spacer.
- the powdery product is introduced into the spacer by orifices pierced for this purpose in the framework and then rebouched, usually with butyl.
- the disadvantage of such spacers is that they have a high thermal conductivity related to the thermal conductivity of the moisture absorbing product that fills the interior space. The thermal performance of the insulating glazings integrating these spacers is therefore limited.
- the application EP 1 860 270 describes a different type of spacer obtained by extrusion.
- the spacer here forms a bead intended to be fixed by gluing to the glass sheets of the glazing and comprising a moisture-absorbing core coextruded with a silicone envelope at least partially permeable to moisture. But this type of spacer also does not allow to obtain insulating glass with good thermal performance.
- the present disclosure aims to provide insulating glazing and a method of manufacturing such a spacer, to remedy the aforementioned problems.
- the present disclosure thus relates to an insulating glazing spacer extending in a longitudinal direction and comprising a first and a second fixing part spaced apart from one another in a lateral direction and intended to be each secured to a sheet of glass of the insulating glazing unit by adhesive bonding means, and at least one transverse part connecting said first and second fixing parts and delimiting with them an interior space, the spacer comprising, in the interior space, an absorbent structure of moisture formed of at least one absorbent unit attached to one of the first and second attachment portions, the other of the first and second attachment portions not being in contact with the absorbent unit.
- a "self-supporting" element or set of elements is understood by structure, that is to say, it exists as such, independently of any support or substrate, unlike a coating or a layer deposited on a substrate.
- the absorbent moisture structure according to the invention forms an element or a set of compact elements (s), of finite dimensions.
- each absorbent unit of the moisture absorbing structure remains at a distance from at least one of the attachment portions, the structure does not affect the thermal conductivity of the spacer.
- the thermal performances of the spacer are thus improved compared with those of spacers of the prior art.
- the absorbent unit is fixed by gluing means, for example a hot melt glue.
- the absorbent structure is arranged so that it is not in contact with the transverse part either.
- the absorbent moisture structure may comprise a plurality of absorbent units which are preferably spaced in the longitudinal direction by interrupt zones. These interruption zones are preferably at least 2 mm in order to guarantee an efficient thermal separation.
- the absorbent moisture structure may comprise an absorbent unit extending continuously in the longitudinal direction.
- the absorbent unit forms a profile extending in the longitudinal direction.
- Profile means an elongated element, typically of constant or substantially constant section, for example rectangular.
- the absorbent structure extends over at least 50%, preferably at least 80%, of the total length of the spacer, measured in its longitudinal direction.
- the section of the absorbent unit measured in a plane orthogonal to the longitudinal direction, is between 30 and 300 mm 2
- the width of the absorbent unit, measured in the lateral direction, is between 0.6 and 0.99 times the total width of the spacer.
- the moisture absorbing unit can be formed
- the absorbent unit comprises at least one moisture-absorbing material.
- moisture absorbing material is meant
- porous materials also called molecular sieves, acting physically on the water vapor, by trapping in its pores (the pores of this type of material are generally very small, of the order of 3 to 4 Angstroms) ), for example a zeolite, a silica gel, a clay (in particular montmorillonite), activated charcoal,
- porous materials acting chemically, reacting with water vapor for example calcium sulfate, calcium chloride.
- the absorbent unit may also comprise a combination of several absorbent materials selected from one or both of the above categories.
- the absorbent unit comprises a cohesive core formed of particles of at least one moisture-absorbing material bonded by a binder.
- the binder may be any plastic material permeable to water vapor.
- the binder preferably does not contain any volatile material.
- the binder may thus comprise polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET), polymethylacrylate (PMMA), polycarbonate (PC), polyamide (PA), polyvinylchloride (PVC), polystyrene ( PS) and / or other styrenic polymers, copolymers (eg ABS, SAN, ASA, etc.) or any suitable combination of the aforementioned elements.
- PP polypropylene
- PE polyethylene
- PET polyethylene terephthalate
- PMMA polymethylacrylate
- PC polycarbonate
- PA polyamide
- PVC polyvinylchloride
- PS polystyrene
- / or other styrenic polymers copolymers (eg ABS, SAN, ASA, etc.) or any suitable combination of the aforementioned elements.
- the cohesive core of the absorbent unit is surrounded by a closed envelope permeable to water vapor.
- the casing prevents particles from becoming detached and pollutes the internal cavity of the glazing. It is usually plastic.
- the absorbent unit comprises a powdery, friable moisture-absorbing core, liquid or pasty, for example a powder or a silica gel, surrounded by a closed envelope permeable to water vapor.
- the envelope is usually plastic.
- the present disclosure also relates to a method for manufacturing an insulating glazing spacer extending in a longitudinal direction and comprising a first and a second fastening part spaced from one another in a lateral direction and intended to be joined together. each to a glass sheet of the insulating glazing unit by adhesive bonding means, and at least one transverse part connecting said first and second fixing parts and delimiting with them an interior space, the method comprising fixing at least one unit absorbent forming a moisture absorbing structure, at one of the first and second attachment portions, the other one of the first and second attachment portions not being in contact with the absorbent unit.
- the absorbent unit is pre-extruded and then fixed on the first or the second fixing portion.
- the preextruded absorbent unit is surrounded by a closed envelope that is permeable to water vapor before being fixed on the first or the second fixing part.
- the absorbent unit may for example be fixed by gluing, for example by means of a hot melt glue.
- the absorbent unit is extruded directly onto the first or the second fixing part.
- the absorbent unit is fixed to the first or second fixing part after joining the first and second fixing parts together.
- the first and second attachment portions are connected to the transverse portion so as to form the interior space, and then the absorbent unit is attached to one of the attachment portions of the spacer.
- the absorbent unit is fixed to the first or the second fixing portion before joining the first and second fixing parts together. In this case, for example, the absorbent unit is attached to the first attachment portion, and then this portion is connected to the second attachment portion through the transverse portion.
- the present disclosure relates to a method of manufacturing a spacer frame for insulating glazing comprising at least one spacer as defined above or manufactured according to the method defined above.
- the spacer is bent to form at least two adjacent sides of the frame. It is understood that the folding is performed around an axis extending in the lateral direction of the spacer.
- the spacer comprises at least two separate absorbent units, in the longitudinal direction, by an interruption zone, and the spacer is folded at said at least one interruption zone.
- the moisture absorbing structure comprises an absorbent unit extending continuously in the longitudinal direction of the spacer, at least a portion of said absorbent unit is removed prior to the folding step, so that forming an interruption zone, and the spacer is folded at said at least one interruption zone.
- At least two rectilinear spacers are assembled by mechanical assembly means, for example a connector inserted at a respective end of each spacer, so as to form two adjacent sides of the frame.
- the at least one absorbent unit forming moisture absorbing structure can be attached to the first or second fixing part before or after formation of the frame.
- Figure 1 is a cross-sectional view of a spacer according to one embodiment, mounted between two glass sheets of an insulating glazing unit;
- FIG. 2 illustrates a first example of a moisture absorbing structure that can be used according to the invention
- FIG. 3 illustrates another example of a moisture absorbing structure that can be used according to the invention
- FIG. 4 illustrates another example of a moisture absorbing structure that can be used according to the invention
- FIGS. 5D to 5C illustrate the successive steps of manufacturing a spacer according to an embodiment of the invention
- FIGS. 6D to 6C illustrate the successive steps of manufacturing a spacer according to another embodiment of the invention.
- Figure 7 shows schematically the formation of a spacer frame from a plurality of spacers according to the invention, mechanically assembled
- FIG. 8 is a view in longitudinal section of a spacer according to the invention, before folding,
- FIG. 9 shows the formation of a spacer frame by folding of the spacer of FIG. 8.
- FIG. 1 shows a section of the periphery of an insulating glazing unit 1, here a double glazing, comprising an outer glass sheet 2a, for example intended to be turned towards the outside of a building, an inner glass sheet 2b , parallel to the outer glass sheet 2a, and a spacer frame 3 extending continuously along the edge of the first and second glass sheets 2a, 2b, a sealed internal cavity 4 being delimited by the spacer frame between the two sheets of glass 2a, 2b.
- a double glazing comprising an outer glass sheet 2a, for example intended to be turned towards the outside of a building, an inner glass sheet 2b , parallel to the outer glass sheet 2a, and a spacer frame 3 extending continuously along the edge of the first and second glass sheets 2a, 2b, a sealed internal cavity 4 being delimited by the spacer frame between the two sheets of glass 2a, 2b.
- the spacer frame 3 may be manufactured by successive bends of a straight spacer, or by angular assembly at their ends of straight spacers, so as to obtain a typically rectangular frame.
- the spacer extends, at least in parts, in a longitudinal direction parallel to an edge of the glazing.
- the longitudinal direction is represented by the X axis.
- the spacer 10 of FIG. 1 comprises a first and a second fastening portion 12, 14 facing each other in a direction Y, referred to as the lateral direction of the spacer 10.
- These fastening portions 12, 14 are typically made of metal, especially aluminum or more preferably steel.
- the first fastening portion 12 here in U-section, defines a first main fixing face 16a intended to be secured to the outer glass sheet 2a, and two returns extending laterally inwardly 16b, 16c, from and other of the first main fixing face 16a.
- the second main fastening part 14 also of U-shaped section, defines a first main fixing face 18a intended to be secured to the outer glass sheet 2a, and two laterally extending inward returns 18b, 18c, of on both sides of the second main fixing face 18a.
- the fastening to the glass sheets 2a, 2b is, in a manner known per se, by at least one sealing bead respectively 5a, 5b bonding means, for example based on butyl.
- a transverse direction Z of the spacer is defined as a direction orthogonal to the said longitudinal X and Y directions.
- the transverse direction Z is generally parallel to the main fixing faces 14a, 14b of the spacer 10.
- the upper elements are those oriented towards or closer to the internal cavity 4 of the glazing, in the assembled position of the spacer 10.
- the lower elements are further from the internal cavity 4 of the glazing, in the mounted position of the spacer 10.
- the first and second attachment portions 12, 14 are structurally interconnected by a lower transverse portion 20 and an upper transverse portion 22 extending in the lateral direction Y and respectively forming the lower wall and the upper wall of the spacer 10.
- each transverse portion 20, 22 is glued to each of its lateral ends to a return 16b, 18b, respectively 16b, 18c of one of the fastening portions 12, 14.
- the transverse portions 20, 22 delimit, with the first and second fixing portions 11, 12, an interior space 30 of the spacer 10.
- the interior space 30 houses a moisture absorbing structure 40, by definition self-supporting, formed of one or more absorbent units, each of finite dimensions.
- the upper transverse portion 22 of the spacer 10 is therefore not necessary as this this could be the case in prior art spacers incorporating absorbent powders filling the interior space.
- the function of the upper transverse portion 22 here is not to retain the absorbent structure 40. It is essentially aesthetic.
- the structure 40 comprises an absorbent unit 41 in the form of a section of rectangular constant section, extending in the longitudinal direction X of the spacer 10.
- the absorbent unit 41 extends over at least 50%, preferably 80%, of the total length of the spacer, measured in its longitudinal direction X.
- the section of the absorbent unit 41 measured in a plane orthogonal to the longitudinal direction X, is between 30 and 300 mm 2
- Its width 11, measured in the lateral direction Y, is between 0.6 and 0.99 times the total width 1 of the spacer.
- the structure 40 is not in contact with the second fixing portion 14.
- the absorbent structure 40 thus does not form a thermal bridge between the two attachment parts 12, 14 of the spacer 10.
- the structure 40 being free over a large majority of its periphery, it has a significant capacity of 'absorption.
- the absorbent unit 41 is formed of a fully absorbent, moisture-absorbing, cohesive core 42.
- particles 44 of a moisture-absorbing material in particular silica gel
- a hardened binder 46 in particular a plastic permeable to water vapor.
- the absorbent unit 41 is for example obtained by pre-extrusion of the mixture of particles and binder forming the core 42.
- the core 42 is fixed, by one of its sides (here a small side), to the first fixing portion 12.
- This attachment can be effected by means of an adhesive 50, for example a hot-melt adhesive, as illustrated in FIG.
- a cohesive core 42 as defined above can be extruded directly onto one of the fastening portions 12, 14, to which it then adheres directly.
- FIGS. 1 and 2 The example of FIGS. 1 and 2 is however not limiting:
- the spacer may thus have a different framework:
- the first and second fixing parts may be formed in one piece with the lower transverse part, the spacer then having a main frame in one piece, in U or in C, plastic or metal, closed or not by an upper transverse part forming a cover.
- Absorbent structure 40 can also be in different forms:
- FIG. 3 thus illustrates another exemplary embodiment of a moisture absorbing structure 140 in which, in order to prevent the release of particles 144 originating from the structure 140 into the internal space 4 of the glazing unit 1, the cohesive core 142 is surrounded an envelope 170, generally made of plastic, of thickness for example between 0.01 and 0.5 mm, permeable to water vapor.
- the envelope is preferably completely closed, and covers the entire periphery as well as the longitudinal ends of the core 42.
- FIG. 4 illustrates yet another embodiment of a moisture absorbing structure 240 having a pulverulent, friable, liquid or pasty core 242 surrounded by a closed envelope, of thickness for example between 0.01 and 0.5 mm, permeable to water vapor, and generally plastic 270.
- the envelope 170, 270 which is fixed to the fixing portion 12, 14 of the spacer 10, by gluing.
- the absorbent structure 140, 240 is arranged so that it is not in contact with the transverse portion.
- the structure may be formed of a single absorbent unit of the type described above, extending for example over substantially the entire length of the spacer in its longitudinal direction X.
- the structure may be formed of a plurality absorbent units which are preferably spaced in the longitudinal direction X by interrupt zones. These interruption zones are preferably at least 2 mm in order to guarantee an efficient thermal separation.
- the structure can be fixed at the fixing portion 12, 14 either before or after joining the first and second attachment portions 12, 14 of the spacer 10.
- FIGS. 5D to 5C thus illustrate a first embodiment of the method for manufacturing a spacer according to the invention, in which the moisture absorbing structure comprises at least one absorbent unit formed of a cohesive core, deposited by extrusion on a fixing part of the spacer.
- the cohesive core 42 of an absorbent unit 41 is extruded on the first free fastening portion 12, that is to say not yet linked to the second fastening portion 14 ( Figure 5D and 5B).
- first and second fixing portions 12, 14 are connected by means of the upper and lower transverse portions 20, 22, the core 42 being trapped in the interior space 30.
- FIGS. 6A to 6C illustrate a second mode of implementation of the method of manufacturing a spacer according to the invention.
- first and second fastening portions 12, 14 are interconnected by means of the lower transverse part 20, with which they delimit the interior space 30.
- the inner space 30 is open at its upper end, the upper transverse portion 22 not yet reported.
- the cohesive core 42 of an absorbent unit 41 is then extruded directly onto the inner face of the first fixing portion 12, through the upper opening of the interior space 30.
- the spacer frame 3 can be manufactured by successive bends of a straight spacer, or by angular assembly at their ends of straight spacers, so as to obtain a typically rectangular frame.
- a structure 40 generally extends continuously over substantially the entire length of each spacer 10.
- Spacers typically, four
- 10a, 10b, 10c, 10d are then assembled by mechanical assembly means, for example four connectors 11 each inserted into two spacers intended to form two adjacent sides of the frame 3.
- the absorbent structure may comprise at least two absorbent units spaced apart from one another by an intermediate zone. coinciding with the folding zone of the spacer.
- the spacer 10 is generally provided, at each folding zone, with at least one through cut 60 with a constant V-shaped profile whose two opposite edges form between them an angle of 90.degree. °.
- the spacer advantageously comprises three notches, each intended to form a wedge of the spacer frame.
- the absorbent structure 40 advantageously comprises a plurality of absorbent units 41a, 41b,
- the spacer On assembly, as illustrated in FIG. 9, the spacer is bent at right angles at each notch, and the two longitudinal ends of the spacer are joined at the fourth corner by a connector 11 of known type. Welding lines are finally made at the junction of the edges of each notch, to restore the tightness of the first and second main attachment parts.
- the spacer may also be manufactured with a single absorbent unit extending continuously over the entire length or substantially the entire length of the spacer, and at least a portion of said absorbent unit may be removed before the folding step, so as to form the interrupt zone or zones.
- the notches 60 may optionally be cut at the same time as the absorbing unit.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Securing Of Glass Panes Or The Like (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1762910A FR3075853B1 (fr) | 2017-12-22 | 2017-12-22 | Espaceur avec structure absorbante d'humidite et procede de fabrication correspondant |
EP18194244 | 2018-09-13 | ||
PCT/EP2018/086459 WO2019122278A1 (fr) | 2017-12-22 | 2018-12-21 | Espaceur avec structure absorbante d'humidite et procede de fabrication correspondant |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3728777A1 true EP3728777A1 (fr) | 2020-10-28 |
EP3728777B1 EP3728777B1 (fr) | 2022-07-27 |
Family
ID=64746569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18822385.3A Active EP3728777B1 (fr) | 2017-12-22 | 2018-12-21 | Espaceur avec structure absorbante d'humidite et procede de fabrication correspondant |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3728777B1 (fr) |
DK (1) | DK3728777T3 (fr) |
PL (1) | PL3728777T3 (fr) |
WO (1) | WO2019122278A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PL443536A1 (pl) | 2023-01-19 | 2024-07-22 | Technoform Edge Bond Solutions Poland Spółka Z Ograniczoną Odpowiedzialnością | Insert wewnętrzny do pochłaniania wilgoci do zastosowania w profilach plastikowych, zwłaszcza do ciepłych ramek w szybach zespolonych oraz sposób jego wytwarzania |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1585823A (en) * | 1977-05-25 | 1981-03-11 | Bfg Glassgroup | Soldered multiple glazing unit |
US5873203A (en) * | 1997-09-02 | 1999-02-23 | Ppg Industries, Inc. | Photoelectrolytically-desiccating multiple-glazed window units |
US6212756B1 (en) * | 1998-08-14 | 2001-04-10 | Truseal Technologies, Inc. | Dispensable non-adhesive desiccated matrix system for insulating glass units |
US7827761B2 (en) * | 2003-06-23 | 2010-11-09 | Ppg Industries Ohio, Inc. | Plastic spacer stock, plastic spacer frame and multi-sheet unit, and method of making same |
DE102006024402B4 (de) | 2006-05-24 | 2008-01-03 | Peter Lisec | Isolierglaseinheit mit einem elastoplastischen Abstandhalterband und Applizzierverfahren für letzteres |
US20140113098A1 (en) * | 2012-10-22 | 2014-04-24 | Guartdian IGU, LLC | Spacer having a desiccant |
CA2958613C (fr) | 2014-09-25 | 2019-05-07 | Saint-Gobain Glass France | Entretoise pour vitrages isolants |
EP3184725A1 (fr) * | 2015-12-23 | 2017-06-28 | VKR Holding A/S | Espaceur destiné à une unité de vitrage multiple et ledit vitrage |
-
2018
- 2018-12-21 DK DK18822385.3T patent/DK3728777T3/da active
- 2018-12-21 WO PCT/EP2018/086459 patent/WO2019122278A1/fr unknown
- 2018-12-21 EP EP18822385.3A patent/EP3728777B1/fr active Active
- 2018-12-21 PL PL18822385.3T patent/PL3728777T3/pl unknown
Also Published As
Publication number | Publication date |
---|---|
WO2019122278A1 (fr) | 2019-06-27 |
EP3728777B1 (fr) | 2022-07-27 |
DK3728777T3 (da) | 2022-08-22 |
PL3728777T3 (pl) | 2022-08-29 |
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