EP4249721A1 - Fenster und anordnung mit einem rahmenlosen, einen feststehenden rahmen abdeckenden flügel - Google Patents
Fenster und anordnung mit einem rahmenlosen, einen feststehenden rahmen abdeckenden flügel Download PDFInfo
- Publication number
- EP4249721A1 EP4249721A1 EP23162477.6A EP23162477A EP4249721A1 EP 4249721 A1 EP4249721 A1 EP 4249721A1 EP 23162477 A EP23162477 A EP 23162477A EP 4249721 A1 EP4249721 A1 EP 4249721A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fixed frame
- glazing
- frameless sash
- sash
- frameless
- 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.)
- Pending
Links
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Images
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
- E06B3/02—Wings made completely of glass
- E06B3/025—Wings made completely of glass consisting of multiple glazing units
-
- 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
- E06B3/308—Wing frames covered on the outside by a rigidly-mounted outer frame
-
- 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
- E06B3/54—Fixing of glass panes or like plates
- E06B3/5427—Fixing of glass panes or like plates the panes mounted flush with the surrounding frame or with the surrounding panes
-
- 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
- E06B3/6617—Units comprising two or more parallel glass or like panes permanently secured together one of the panes being larger than another
Definitions
- the present invention is in the field of windows in the broad sense of the term, including openable windows such as casement windows, tilting windows, as well as non-openable windows.
- the windows comprise a sash coupled to a fixed frame mounted in an opening or tunnel of a wall or similar.
- the present invention concerns more particularly high-performance windows comprising a frameless sash defined by an inner surface bounded by an inner glazing perimeter and by an outer surface bounded by an outer glazing perimeter, wherein the inner surface and the outer surface are made of an inner glazing and an outer glazing, the inner and outer glazings comprising no outer frame profile.
- the present invention proposes a novel concept of windows improving thermal insulation and offering new design opportunities with new aesthetic aspects available to the designers.
- Windows are typically composed by a sash coupled to a fixed frame mounted in an opening or tunnel of a wall or similar.
- the sash comprises one, two, or more glazings coupled to frame profiles extending over a part or a whole of a glazing perimeter.
- the frame profiles are typically made of metal, wood, polymer, or composite material.
- a glazing can consist of a single glass pane or of multiple glass panes.
- the frame profiles can be inner frame profiles or outer frame profiles.
- inner frame profile is herein understood to mean the frame profiles which are encased between at least two glazings so as not to extend beyond the glazings perimeters.
- outer frame profile by contrast, is understood to mean the frame profiles which are fixed to the inner surface and/or the outer surface of the glazing facing an inner and/or an outer environment of the window, respectively.
- the outer frame profiles are always visible at least from one of the inner or outer environment of the window.
- sashes comprising one or more glazings with no outer frame profile are designated as "frameless sashes”.
- Frameless sashes have been available on the market for several years and are generally characterized by larger transparent see-through areas than corresponding sashes of same dimensions provided with an outer frame.
- Frameless sashes comprise an inner glazing defining the whole of the inner surface of the sash, and an outer glazing defining the whole of the outer surface of the sash, the inner and outer surfaces being bounded by inner and outer glazing perimeters.
- the inner and outer glazings are maintained separated and parallel to one another by at least one gap defined within a peripheral spacer and comprise no outer frame profile.
- Frameless sashes actually comprise an inner frame profile, which is encased between the inner and outer glazings and within the peripheral spacer(s) and the inner and outer glazing perimeters. It is formed by profiles which ends are coupled to one another to form the inner frame profile.
- the inner frame profile is designed to accommodate the hardware required for locking the frameless sash in a closed or a semi-open position (e.g., tilting).
- the hinges allowing opening and closing of a sash can also be enclosed within the inner frame profile so as not to be visible from either side of the window.
- EP3228795 describes a frameless sash window, comprising an inner frame profile made of metal, wood encased between an outer and inner glazing.
- EP2436865 describes a frameless sash window comprising an inner frame profile made of polymer or aluminium encased between an outer and inner glazing.
- the fixed frame can typically be formed by fixed frame profiles made of metal, wood, polymer, or a composite material. Metals may be chosen in particular among aluminium and steel. Aluminium has the advantage of being extremely weathering resistant, unlike wood and polymers in general, which are sensitive to UV. Because of the high thermal conductivity of aluminium, aluminium fixed frames are provided with one or more thermal barriers generally consisting of a polymer bloc, typically a thermoplastic bloc such as a polyamide bloc. Such polymer blocs, sandwiched between two aluminium elements, reduce the thermal conductivity across a thickness of the fixed frame, but increase the complexity and cost of production aluminium fixed frames.
- the inner surface of the fixed frame is typically at least partly visible when the frameless sash is in the closed position.
- the inner surface of the fixed frame may for example be flush with the inner surfaces of the inner glazing, such as in EP3847335A1 .
- Two contrasting surfaces are visible on the inside, that of the fixed frame and that of the inner glazing, and, these surfaces being furthermore next to the wall, leads to complicated aesthetic situations.
- the visibility of the inner surface of the fixed frame discourages the use of material that is perceived as less aesthetic, such as polymers and composite materials and in particular recycled polymers such as recycled PVC (polyvinylchloride), but also recycled or composite wood materials, which have a nonuniform aspect.
- the inner surface of the fixed frame may be hidden by the wall, in particular plaster boards, such as in EP3296498A1 . Installation of such fixed frames is complicated and requires extensive finishing work after fixing the frame. When used for the replacement of existing windows, surrounding walling has to be partly removed and reinstalled after mounting the fixed frame in the wall opening.
- the present invention proposes a highly energy-performant window comprising a frameless sash coupled to a fixed frame, which provides a uniform aesthetic aspect on the inside, combined with increased thermal insulation.
- the present invention is defined in the appended independent claims. Preferred embodiments are defined in the dependent claims.
- the present invention concerns a window comprising,
- Covering a part of the fixed frame by the frameless sashes inner glazing reduces the amount of heat exchange, in particular by radiation and/or convection, between the fixed frame and the inner environment. Furthermore, it may help to achieve more desirable aesthetic properties and in particular help to hide from view fixed frame materials that may be perceived as visually less pleasing, even though they may be more economic.
- the receiving elements are suitable for coupling the frameless sash to the fixed frame in one of the following manners,
- the fixed frame profile can be made of metal, wood, polymer, a fibre reinforced polymer composite, in particular recycled wood, wood composite, recycled polymer, a recycled fibre reinforced polymer composite, or a combination thereof. It preferably has a frame heat transfer coefficient, Uf, of not more than 2.7 W / m 2 K, preferably of not more than 2.4 W / m 2 K, more preferably of not more than 1.7 W / m 2 K, more preferably of not more than 1.4 W / m 2 K.
- the fixed frame extends from a perimeter inwards and has a height H21 extending inwards of not more than 130 mm, preferably not more than 110 mm and more preferably not more than 70 mm, even more preferably not more than 50 mm, most preferably not more than 40mm.
- the fixed frame may extend inwards for a height H21 of at least 20mm.
- the fixed frame profile height H21 is measured parallel to the outer surface of the outer glazing when the frameless sash is in the closed position.
- the frameless sash comprises one intermediate glazing forming a three glazing unit formed by an outer-, intermediate-, and inner-glazings separated from one another by two gaps, each gap being defined within a peripheral spacer.
- the frameless sash comprises two intermediate glazings forming a four glazing unit formed by an outer-, first intermediate-, second intermediate-, and inner-glazings separated from one another by three gaps, each one defined within a peripheral spacer.
- the inner glazing and the outer glazing comprise an inner peripheral region and an outer peripheral region extending inwardly from an edge of the inner and outer glazings, along the whole of the inner and outer glazing perimeters, respectively, to preferably at least the peripheral spacer contacting the corresponding glazing.
- the inner and outer peripheral regions In order to hide the inner surface of the fixed frame, it is preferred that the inner and outer peripheral regions have a visible light transmission, TL, at least 50% lower than the inner glazing and the outer glazing, outside of the respective inner and outer peripheral regions.
- the inner and outer peripheral regions are preferably translucent or opaque. TL is measured according to standard EN410:201 1 with illuminant D65.
- At least one glazing can be provided with at least a heat ray reflection film or a low-emissivity film.
- at least one of the glazing can be an interactive glazing, preferably selected among an electrochromic, thermochromic, or photochromic device, interstitial blinds, a photovoltaic device, a multimedia connection, an antenna, communication means, a TV set, a light source including a LED, a loudspeaker, a sensor including an irradiance-, temperature-, or acoustic- sensor, or a combination thereof.
- the window can comprise a mechanically, pneumatically or electrically actuating device for reversibly moving the frameless sash with respect to the fixed frame from the closed position to the open position.
- a remote-control system including a receiver integrated in the frameless sash and/or the fixed frame can be provided for actuating the moving of the frameless sash or a functional element.
- the glazings of the frameless sash preferably have a thermal transmittance coefficient, Ug, of not more than 1.0 W / m 2 K, more preferably of not more than 0.7 W / m 2 K and even not more than 0.5 W / m 2 K.
- the window of the present invention when the frameless sash is in the closed position, with at least 50% , at least 60%, at least 70%, at least 80%, at least 90%, at least 95%, or 100% of the surface area of the inner face of the fixed frame being covered by the inner peripheral region (14n) of the inner glazing (10n), may provide a heat transfer coefficient Ufg of the fixed frame covered by the inner peripheral region (14n) of the inner glazing of not more than 0.9 x Uf, in particular not more than 0.8 x Uf.
- the larger the amount of surface of the inner face of the fixed frame that is covered the larger the reduction of the heat transfer coefficient in the covered area. It is to be understood that if the fixed frame profile is exposed to the inside environment, then the inner face of the fixed frame profile is the inner face of the fixed frame.
- a cover plate (22) is coupled to and covering at least 10% of a surface area of the outer face of the fixed frame profile over substantially a whole of the outer frame perimeter.
- the cover plate may be made of metal, a UV-resistant polymer or a UV-resistant fibre-reinforced polymer composite. The cover plate thus forms a barrier against water and UV for the sealing elements and at least for part of the fixed frame profile.
- the present invention also concerns an assembly comprising:
- the present invention concerns a window comprising a frameless sash ( 10 ) coupled to a fixed frame ( 20 ).
- the frameless sash comprises an inner glazing (10n) defining an inner surface (10b) bounded by an inner glazing perimeter, parallel to an outer surface (10a) of an outer glazing (101), bounded by an outer glazing perimeter.
- the inner and outer glazings are separated from one another by at least one gap (131) defined within a peripheral spacer (121) and comprise no outer frame profile.
- the gap (131) can also be referred to as an interspace or a cavity.
- the peripheral spacer comprises a desiccant and has typically a thickness equal to or greater than 6 mm.
- the gap is filled with a gas which can be selected from the group consisting of air, dry air, argon (Ar), krypton (Kr), xenon (Xe), sulfur hexafluoride (SF6), carbon dioxide or a combination thereof.
- a gas which can be selected from the group consisting of air, dry air, argon (Ar), krypton (Kr), xenon (Xe), sulfur hexafluoride (SF6), carbon dioxide or a combination thereof.
- Said predetermined gas are effective for preventing heat transfer and/or may be used to reduce sound transmission.
- the frameless sash actually comprises an inner frame profile, (1 1) extending over a whole perimeter of the frameless sash.
- the inner frame profile is lodged within a volume defined between the inner and outer glazings and between the peripheral spacer and the inner and outer perimeters. Because the inner frame profile does not extend beyond the inner and outer glazing perimeters, such sashes are called frameless sashes although they do comprise a frame, albeit an inner frame profile.
- the frameless sash is devoid of an outer frame profile, i.e. devoid of even partial frame elements which are fixed to the inner surface and/or the outer surface of the inner and/or outer glazing, respectively.
- the frameless sash is preferably devoid of any outer element hiding any part of the inner and/or outer surface of the inner and/or outer glazing, respectively.
- Such outer elements may be for instance edge protection elements or edge protection profiles.
- the frameless sash more preferably comprises inner and/or outer glazings which inner and/or outer surfaces are visible in its entirety, respectively. Most preferably, the inner and outer surfaces of the inner and outer glazings are visible in their entirety.
- the inner frame profile can be made of wood, polymer, fibre reinforced composite, or metal such as steel or aluminium. It is, however, preferred that the profile is not made of metal for reasons of optimized thermal insulation.
- the inner frame profile encloses hardware required for locking / unlocking the frameless sash in an open or closed position.
- the inner glazing (10n) and the outer glazing (101) comprise a inner peripheral region (14n) and an outer peripheral region (141) extending inwardly over a height defined from an edge of the inner and outer glazings, along the whole of the inner and outer glazing perimeters, respectively, to preferably at least the peripheral spacer (121, 12i) contacting the corresponding glazing.
- the inner and outer peripheral regions have a visible light transmission, TL, at least 50% lower than the inner glazing (10n) and the outer glazing (101), respectively, outside of the respective inner and outer peripheral regions, and is preferably opaque.
- the peripheral region can be enamelled, or etched or sand-blasted to create a texture yielding a translucent peripheral region.
- the peripheral region can also be made (partially) opaque or translucent by applying a film.
- the peripheral region can also be colored or comprise decorative patterns.
- the height of the peripheral region, measured from an edge toward the centre of a glazing is preferably comprised between 10 and 120 mm.
- the height of the inner peripheral region (14n), measured from an edge toward the centre of a glazing is preferably comprised between 60 and 120 mm.
- the height of the outer peripheral region (141) may be smaller than the height of the inner peripheral region (14n).
- the height of the outer peripheral region (141), measured from an edge toward the centre of a glazing is comprised between 10 and 100mm. more preferably between 15 and 80 mm, most preferably, between 20 and 60 mm.
- the glazing of the present invention can consist of a single glass pane or multiple glass panes.
- the single or multiple glass panes can be chosen among float clear, extra-clear or coloured glass.
- the glazing can be a decorative glazing such as a painted or etched or sand-blasted glazing or a combination thereof.
- the term "glass” is herein understood to mean any type of glass or equivalent transparent material, such as a mineral glass or an organic glass.
- the mineral glasses used may be irrespectively one or more known types of glass such as soda-lime-silica, aluminosilicate or borosilicate, crystalline and polycrystalline glasses.
- the glass pane can be obtained by a floating process, a drawing process, a rolling process or any other process known for manufacturing a glass pane starting from a molten glass composition.
- the glass pane can optionally be edge-ground. Edge grinding renders sharp edges into smooth edges which are much safer for people who could come into contact with a glass pane, in particular with the edge of frameless sash.
- the glass pane according to the invention is made of soda-lime-silica glass, aluminosilicate glass or borosilicate glass. More preferably and for reasons of lower production costs, the glass pane is made of a soda-lime-silica glass.
- At least one glazing preferably consists of a single pre-stressed glass pane.
- the inner glazing (10n) and/or the outer glazing (101) can be pre-stressed glass panes.
- a pre-stressed glass is a heat strengthened glass, a thermally toughened safety glass, or a chemically strengthened glass.
- Aluminosilicate-type glass compositions such as for example those from the products range DragonTrail ® from Asahi Glass Co. or those from the products range Gorilla ® from Corning Inc., are also known to be suitable for chemical tempering.
- the composition for at least one of the glass panes of the frameless sash of the present invention comprises the following components in weight percentage, expressed with respect to the total weight of glass.
- Comp. A is an example of a first embodiment of glass composition
- Comp. B is an example of a soda-lime-silicate-type glass with a base glass matrix.
- compositions for at least one of the glass panes of the frameless sash of the present invention comprise the following components in weight percentage, expressed with respect to the total weight of glass: Comp. C Comp. D Comp. E 65 ⁇ SiO 2 ⁇ 78 wt% 60 ⁇ SiO2 ⁇ 78 % 65 ⁇ SiO2 ⁇ 78 wt% 5 ⁇ Na 2 O ⁇ 20 wt% 5 ⁇ Na2O ⁇ 20 % 5 ⁇ Na2O ⁇ 20 wt% 0 ⁇ K 2 O ⁇ 5 wt% 0.9 ⁇ K2O ⁇ 12 % 1 ⁇ K2O ⁇ 8 wt% 1 ⁇ Al 2 O 3 ⁇ 6 wt%, pref 3 ⁇ Al2O3 ⁇ 5 % 4.9 ⁇ Al2O3 ⁇ 8 % 1 ⁇ Al2O3 ⁇ 6 wt% 0 ⁇ CaO ⁇ 4.5 wt% 0.4 ⁇ CaO ⁇ 2 % 2 ⁇ CaO ⁇
- base glass matrices for glass pane compositions suitable for the present invention are described in WO2015/150207 , WO2015/150403 WO2016/091672 , WO2016/169823 , and WO2018/001965 .
- a glass pane can comprise one or more layers such as low emissivity layers, heat ray reflection layers (solar control layers), anti-reflective layers, anti-fog layers.
- the one or more layers can be coated or applied as one or more films.
- At least one glazing (101, 10i, 10n) preferably comprises a glass pane provided with a heat ray reflection layer or a low emissivity layer for improving the thermal insulating properties of the frameless sash.
- At least one of the glazing (101, 10i, 10n) of the frameless sash can be a multiple glazing.
- the multiple glazing can be selected among a vacuum insulating glazing (VIG) to yield particularly high insulating properties, or a laminated glazing to enhance safety and acoustic performances.
- VIP vacuum insulating glazing
- At least one of the glazings (101, 10i, 10n) of the frameless sash can be an interactive glazing.
- the term "interactive glazing” is herein understood to mean a glazing integrating functional elements capable of responding to an external stimulation from the environment and/or from a user.
- the interactive glazing can integrate functional elements including one or more of an electrochromic, thermochromic, or photochromic device, interstitial blinds, a photovoltaic device, a multimedia connection, an antenna, communication means, a TV set, a light source including a LED, a loudspeaker, a sensor including an irradiance-, temperature-, acoustic- sensor, and the like, or a combination thereof.
- the electrochromic device and the interstitial blinds can be controlled manually, with a switch or a remote control, or they can be coupled to a sensor measuring the light irradiation and by a controller automatically controlling the voltage applied to the electrochromic device as a function of the level of irradiation or setting the blind position.
- the windows of the present invention are preferably highly energy-efficient. For this reason, it is preferred that the glazings of the frameless sash (i.e., the transparent see-through area of the frameless sash) have a thermal transmittance coefficient, Ug, of not more than 1.0 W / m 2 K, preferably of not more than 0.7 W / m 2 K, or even not more than 0.5 W / m 2 K.
- the frameless sash ( 10 ) is coupled to a fixed frame (20) defining a frame opening.
- the frame opening has an outer face bounded by an outer frame perimeter of the fixed frame, mating the outer glazing perimeter of the frameless sash, and has an inner face bounded by an inner frame perimeter of the fixed frame.
- the frame opening accommodates the frameless sash or sashes when the window is closed and brings in fluid communication the inner and outer environments when the window is open.
- the fixed frame is formed by one or more fixed frame profiles (21) .
- the fixed frame profile may be made of metal, wood, polymer, a fibre reinforced polymer composite or a combination thereof.
- the fixed frame profile may be made of a weathering-sensitive material such as wood or some polymers or fibre reinforced polymer composite materials (which are sensitive to UV-radiation or to hydrolysis).
- the fixed frame profile has an inner face facing the inner environment and comprising the inner frame perimeter of the fixed frame, and an outer face facing the outer environment and comprising the outer frame perimeter of the fixed frame.
- the inner peripheral region (14n) of the inner glazing (10n) When the frameless sash is in the closed position, at least part of the surface area of the inner face of the fixed frame is covered by the inner peripheral region (14n) of the inner glazing (10n).
- different areas of the surface area of the inner face of the fixed frame may be covered to different degrees by the inner peripheral region (14n) of the inner glazing (10n).
- At least 80%, preferably at least 90%, more preferably at least 95%, more preferably 100% of the surface area of the inner face of the fixed frame is covered by the inner peripheral region (14n) of the inner glazing (10n). Increased coverage limits the contact surface of the fixed frame with the inner atmosphere where heat exchanges can occur, and insulation of the window is thus improved. At the same time, the visual appearance may be improved.
- the fixed frame profile is made of a material selected for its high insulating properties, whilst generally, for guaranteeing a high thermal insulation, the thickness W21 may be increased, the present invention allows for a reduction of the width of the fixed frame profile, as the inner glazing compensates for any loss of thermal insulation.
- the fixed frame is provided with receiving elements for coupling the frameless sash to the fixed frame in the closed position, closing the frame opening, wherein the inner and outer glazing perimeters of the frameless sash are coupled to the inner and outer frame perimeters of the fixed frame, respectively.
- the receiving elements are designated to accommodate the hardware of the inner frame profile of the frameless sash.
- the frameless sash can be fixedly coupled to the fixed frame in the closed position and can be designed to not open at any moment.
- the fixed coupling can be reversible, in that the frameless sash can be dismounted from the fixed frame but cannot open and close like a typical window, while remaining coupled to the fixed frame.
- the frameless sash can be coupled to the fixed frame such that it can be reversibly moved with respect to the fixed frame (20) from a closed position, sealing the frame opening, to an open position, exposing part or the whole of the frame opening either
- the fixed frame profile (21), is preferably highly thermally performant.
- the heat transfer coefficient, Uf, of the fixed frame profile is not more than 1.4 W / m 2 K, preferably not more than 0.7 W / m 2 K and more preferably not more than 0.5 W / m 2 K.
- the fixed frame profile of a window according to the present invention can be made of metal, wood, polymer, a fibre reinforced polymer composite or a combination thereof. Because of the additional insulation provided by the inner glazing (10n) covering the inner fixed frame face, even aluminium fixed frames can be used, despite having worse heat transfer coefficients, Uf.
- the fixed frame extends from a perimeter inwards and has a height H21 extending inwards of preferably not more than 70 mm, more preferably not more than 50 mm and most preferably not more than 40mm. Limiting the height of the fixed frame profile allows the available frame opening area of to be increased for a given fixed frame perimeter or wall opening of a building.
- a cover plate (22) may be coupled to and cover at least 10% of a surface area of the outer face of the fixed frame profile over substantially a whole of the outer perimeter of the fixed frame profile.
- the cover plate has the function of protecting the fixed frame profile from weathering by exposure to UV and humidity.
- a portion of the fixed frame profile can be embedded in the wall and therefore not exposed to the outer environment.
- the cover plate can therefore preferably cover up to 100% of the exposed surface area of the outer face of the fixed frame profile when it is mounted in a tunnel of a wall (i.e., 100% of the surface area which is not embedded in the wall).
- the cover plate can cover from 20 to 100% of the surface area of the outer face of the fixed frame profile, preferably from 30 to 90%, more preferably from 40 to 80%.
- the cover plate is used to protect the weathering-sensitive material of the fixed frame profile from aggressions by the external environment, especially UV-light, and also for protecting the fixed frame profile as well as the inner frame profile of the frameless sash from external moisture and water.
- the cover plate is made of a weathering-resistant material, such as a metal (e.g., aluminium or steel), UV-resistant polymers or composite materials, or ceramics.
- the outer face of the fixed frame When the frameless sash is in the closed position, the outer face of the fixed frame may be substantially flush with the outer surface of the outer glazing (101). With the inner glazing (10n) covering at least part of the inner face of the fixed frame, a window with a mostly continuous smooth surface without any protrusion nor any significant recesses extending over the whole area of both sides of the window is provided. Besides obvious aesthetical advantages, this configuration is particularly advantageous in terms of cleaning as, on the first hand, there are no corners, edges, etc. wherein dirt can accumulate and become difficult to remove and, on the second hand, the whole of both inner and outer surfaces of the window can be cleaned with a continuous movement of a squeegee, thus substantially facilitating cleaning of the window. Furthermore, since all sealing elements are internal (i.e., located between the inner and outer glazings of the frameless sash when it is in the closed position), rainwater or cleaning water flows over the surface of the glazing without substantially contacting any sealing element.
- a portion of the outer peripheral region (141) of the outer glazing may be at least partly covered the fixed frame (20), in particular by the cover plate if present.
- the inner glazing (10n) covering at least part of the inner face of the fixed frame a window with a mostly continuous smooth surface without any protrusion nor any significant recesses extending over the whole area of inner face of the window is provided, while providing a more traditional look on the outside.
- the window of the present invention comprises sealing elements (3) for sealingly closing the frame opening when the frameless sash is in the closed position, i.e., when the frameless sash closes the frame opening, with the inner and outer glazing perimeters of the frameless sash being coupled to the inner and outer frame perimeters of the fixed frame, respectively.
- Sealing elements participate in prevent leakage of air and/or water between an outer environment and an inner environment, through gaps between fixed frame and frameless sash.
- the sealing elements can be mounted on the fixed frame, e.g., at an inner edge of the fixed frame profile which is transverse to the inner and outer faces of the fixed frame profile, and/or at the cover plate.
- the sealing elements can be mounted on the frameless sash at an outer edge transverse to the inner and outer surfaces.
- the sealing elements are deformed as the outer edge of the frameless sash fits into the mating inner edge of the fixed frame, thus forming a seal between the fixed frame and the frameless sash when the latter is in the closed position.
- Sealing elements are typically made of rubber or plastic. They may be provided along the periphery of the window element, fixe frame and/or frameless sash, on which they are mounted. Multiple parallel sealing elements may be provided on each window element.
- Insulating elements (4) may be mounted on the fixed frame (20) and/or on the frameless sash ( 10 ), to form an insulating seal between the fixed frame and the frameless sash when the latter is in the closed position. Insulating elements (4) may in particular be mounted on the fixed frame and/or on the inner glazing (10n), in particular in between the inner peripheral region (14n) and the inner face of the fixed frame, so that the insulating elements can be hidden from view.
- insulating elements (4) may be mounted on the fixed frame in between the wall and the fixed frame.
- Insulating elements in addition to preventing leakage of air and/or water between an outer environment and an inner environment, may prevent or reduce thermal bridging between abutting parts. They may in particular prevent thermal bridging between the inner face of a fixed frame and the inner glazing of a frameless sash (10) and/or between a fixed frame and a wall.
- the window of the present invention may comprise insulating elements (4) for breaking the thermal bridge between the inner glazing (10n) and the fixed frame when the frameless sash is in the closed position, i.e., when the frameless sash closes the frame opening, with the inner and outer glazing perimeters of the frameless sash being coupled to the inner and outer frame perimeters of the fixed frame, respectively.
- the insulating elements can be mounted on the fixed frame, e.g., at an inner surface of the fixed frame profile. Alternatively, or concomitantly, the insulating elements can be mounted on the inner glazing's surface abutting to the fixed frames inner surface. When the frameless sash is in the closed position, such insulating elements are compressed between the inner surface of the fixed frame and the inner glazing of the frameless sash.
- Insulating elements (4) may typically be made of compressible insulating materials. When the frameless sash (10) is in a closed position, insulating elements (4) may for example be compressed in between the inner glazing and the inner face of the fixed frame. Also, when a fixed frame is mounted in a wall opening, insulating elements may be compressed between the wall and the fixed frame.
- Compressible insulating materials may typically be polymer foams, in particular closed cell polymer foams or open cell polymer foams.
- Compressible insulating materials may for example be chosen among foams of polyethylene, polyurethane, neoprene, silicone, or ethylene propylene diene monomer.
- Compressible insulating material may for example have a thermal conductivity of between 0.025 to 0.060 W/m.K, preferably between 0.030 to 0.050 W/m.K and in particular between 0.032 and 0.040 W/m.K.
- the insulating elements of the present invention may also improve acoustic insulation of the glazing according to the present invention.
- Figure 2(a) shows a casement window (it could be a glass-door if the frameless sashes extend to the floor), comprising two moving frameless sashes mounted on hinges (40) aligned such as to define vertical axes of rotation.
- This window design can also be referred to as " stulp.
- the triangles in dashed lines indicate the direction of opening, with the summit indicating the edge opposite to the hinges and moving away from the fixed frame and the (vertical) base indicating the axis of rotation defined by the positions of the hinges.
- Figure 2(b) shows a similar casement window as in Figure 2(a) but comprising a single frameless sash instead of two frameless sashes.
- Figure 2(c) shows a tilting frameless sash coupled to the fixed frame by hinges located at the lower horizontal edge of the fixed frame.
- the top edge of the frameless sash can thus be moved away from the top edge of the fixed frame by rotation about a horizontal rotating axis.
- Most tilting sashes can also be opened by rotation about a vertical axis of rotation as discussed with respect to Figure 2(b) , thus combining both modes of opening.
- Such windows are called “tilt and turn " windows.
- the slope formed by a straight line extending between the inner glazing perimeter and the recessed outer glazing perimeter is preferably comprised between 30° and 60° and is preferably equal to 45° ⁇ 5° for optimizing the sealing contact between the frameless sash and fixed frame.
- the entirety of the inner face of the fixed frame is covered by the inner peripheral region (14n) of the inner glazing (10n).
- the inner glazing is visible from the interior and the fixed frame is invisible.
- materials perceived as less noble may be used, such a polymer, for example PVC (polyvinylchloride), or fibre reinforced polymer composite, and in particular recycled polymer materials that may have a less homogeneous aspect.
- the fixed frame (20) is provided with a thermal breakage element (23).
- thermal breakage elements are used to limit thermal conduction through the fixed frame, in particular when fixed frame materials with high thermal conductivity are used, in particular metallic fixed frames of steel and aluminum.
- Thermal breakage elements limit thermal conduction through the fixed frame and, in combination with the additional thermal insulation provided by the inner glazing covering a portion of the inner face of the fixed frame, further increases the overall insulation of the window.
- thermal breakage elements are typically chosen from, polyurethane resin, polyamide, polyamide reinforced with 25% glass fiber, PVC, expanded polystyrene (EPS), wood fibre insulating board or, high-density polyethylene foam with a self-adhesive backing.
- PVC polyurethane resin
- EPS expanded polystyrene
- wood fibre insulating board or, high-density polyethylene foam with a self-adhesive backing.
- the window comprises a mechanically, pneumatically or electrically actuating device for reversibly moving the frameless sash ( 10 ) with respect to the fixed frame (20) from the closed position to the open position and reverse.
- the actuating device can be activated with a switch located on the window or on the wall (30) supporting the window.
- the actuating device can be activated by means of a remote-control system, including a receiver integrated in the frameless sash and/or the fixed frame for actuating the moving of the frameless sash.
- the remote-control system can preferably also control any functionality of the glazing as discussed supra in the section entitled "glazing", such as an electrochromic device, a multimedia connection, an antenna, communication means, a TV set, a light source including a LED, a loudspeaker, a sensor, and the like.
- While the present invention concerns true windows comprising a true frameless sash, that is with no outer framing profile. It is obvious, though aesthetically less desirable, that alternatives with an outer framing profile, on the inner or outer glazing, are feasible. Reasons for having such an outer framing profile may be the desire to provide added edge protection for example or the desire to obtain a more traditional look, for a better fit in a certain architectural setting for example.
- the window of the present invention is used for allowing light to pass through an opening in a wall.
- a window can be opened to bring in fluid communication inner and outer environments separated from one another by said wall.
- the wall (30) which separates the inner environment from the outer environment, is provided with a through opening in the form of a tunnel (30t) defined by a tunnel perimeter.
- the fixed frame (20) is sealingly coupled to the tunnel perimeter, with the inner face of the fixed frame facing the inner environment and the outer face of the fixed frame facing the outer environment. When the frameless sash is in the closed position, the inner environment is separated from the outer environment by the window.
- the opening ratio, A0 Af / At, defined above, wherein Af, and At are the areas of the frame opening and of the tunnel, respectively, depends on the dimensions of the fixed frame.
- the thermal insulation of the fixed frame increases generally with the fixed frame profile width W21.
- the fixed frame thermal insulation may also be increased by adding chambers in the fixed frame profile, which may increase the frame profile width W21 and/or the fixed frame profile height H21.
- Such usual strategies for increasing the fixed frame thermal insulation tend to decrease the opening ratio A0, whereas with the present invention, the thermal conduction through the fixed frame may be decreased without decreasing the opening ratio A0.
- Sealing element 4 Insulating element 10 Frameless sash 10a Outer surface of outer glazing 10b Inner surface of inner glazing 10i Intermediate glazing 10m Moving frameless sash 10n Inner glazing 101 Outer glazing 11 inner frame profile 12i Intermediate spacer 121 Peripheral spacer 131 Gap adjacent to outer glazing 101 13i Gap adjacent to glazing 10i 141 Peripheral region of the outer glazing 14n Peripheral region of the inner glazing 20 Fixed frame 21 Fixed frame profile 22 Cover plate 23 Thermal breakage element 30 Wall 30t Wall tunnel 31 Inner wall surface 40 Hinges A0 Opening ratio Af Area of the frame opening At Area of the tunnel H21 Fixed frame profile height W20 Thickness of fixed frame W21 Thickness of fixed frame profile W22 Thickness of cover plate W30 Wall thickness
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Wing Frames And Configurations (AREA)
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EP22163824 | 2022-03-23 |
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WO2015050403A1 (en) | 2013-10-03 | 2015-04-09 | Lg Electronics Inc. | Method and apparatus for transmitting indication for device-to-device operation in wireless communication system |
WO2016069823A1 (en) | 2014-10-30 | 2016-05-06 | Corning Incorporated | Glass-ceramic compositions and laminated glass articles incorporating the same |
WO2016091672A1 (en) | 2014-12-09 | 2016-06-16 | Agc Glass Europe | Chemically temperable glass sheet |
EP3228795A1 (de) | 2016-04-07 | 2017-10-11 | Stolbud Wloszczowa Spólka Akcyjna | Holzfenster oder türanordnung mit einer externen abdeckung |
WO2018001965A1 (en) | 2016-06-27 | 2018-01-04 | Agc Glass Europe | Chemically temperable glass sheet |
EP3296498A1 (de) | 2016-09-19 | 2018-03-21 | G.M.I - Groupe Millet Industrie | Verstecker rahmen und verfahren zur installation von entsprechender abschlusswand |
EP3847335A1 (de) | 2018-09-07 | 2021-07-14 | AGC Glass Europe | Fenster und anordnung mit einem rahmenlosen schiebeflügel, der bündig mit einem festen rahmen ist |
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DE19931171A1 (de) * | 1999-07-06 | 2001-01-11 | Peter Willrich | Fenstersystem mit einer Fensterscheibe, die mindestens zwei Glasscheiben und eine Beschlagnut aufweist |
EP2436865A1 (de) | 2010-10-04 | 2012-04-04 | Inles d.d. | Fenster |
WO2015050403A1 (en) | 2013-10-03 | 2015-04-09 | Lg Electronics Inc. | Method and apparatus for transmitting indication for device-to-device operation in wireless communication system |
WO2015050207A1 (ja) | 2013-10-04 | 2015-04-09 | 新日鐵住金株式会社 | 連続壁打設方法および連続壁打設用治具 |
WO2016069823A1 (en) | 2014-10-30 | 2016-05-06 | Corning Incorporated | Glass-ceramic compositions and laminated glass articles incorporating the same |
WO2016091672A1 (en) | 2014-12-09 | 2016-06-16 | Agc Glass Europe | Chemically temperable glass sheet |
EP3228795A1 (de) | 2016-04-07 | 2017-10-11 | Stolbud Wloszczowa Spólka Akcyjna | Holzfenster oder türanordnung mit einer externen abdeckung |
WO2018001965A1 (en) | 2016-06-27 | 2018-01-04 | Agc Glass Europe | Chemically temperable glass sheet |
EP3296498A1 (de) | 2016-09-19 | 2018-03-21 | G.M.I - Groupe Millet Industrie | Verstecker rahmen und verfahren zur installation von entsprechender abschlusswand |
EP3847335A1 (de) | 2018-09-07 | 2021-07-14 | AGC Glass Europe | Fenster und anordnung mit einem rahmenlosen schiebeflügel, der bündig mit einem festen rahmen ist |
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