EP3959405A1 - Fenêtre et ensemble comprenant un châssis sans cadre exempt de poignée - Google Patents

Fenêtre et ensemble comprenant un châssis sans cadre exempt de poignée

Info

Publication number
EP3959405A1
EP3959405A1 EP20717856.7A EP20717856A EP3959405A1 EP 3959405 A1 EP3959405 A1 EP 3959405A1 EP 20717856 A EP20717856 A EP 20717856A EP 3959405 A1 EP3959405 A1 EP 3959405A1
Authority
EP
European Patent Office
Prior art keywords
glazing
frame
safety device
sash
frameless sash
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
Application number
EP20717856.7A
Other languages
German (de)
English (en)
Inventor
Olivier Bouesnard
Pierre Schneider
Geoffroy VAN DER REST
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.)
AGC Glass Europe SA
Original Assignee
AGC Glass Europe SA
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 AGC Glass Europe SA filed Critical AGC Glass Europe SA
Publication of EP3959405A1 publication Critical patent/EP3959405A1/fr
Pending legal-status Critical Current

Links

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
    • E06B3/673—Assembling the units
    • E06B3/67326—Assembling spacer elements with the panes

Definitions

  • the present invention is in the general field of windows, including openable 5 windows such as casement windows, tilting windows and glass doors as well as non- openable windows.
  • Windows typically comprise a sash coupled to a fixed frame mounted in an opening of a wall .
  • the present invention concerns more particularly windows comprising a handle free frameless sash, for improved safety.
  • Windows typically comprise a sash coupled to a fixed frame mounted in an opening (or tunnel) of a wall (or si milar).
  • a sash typically comprises one, two, or more glazings coupled to a sash frame extending over a part or a whole of a glazi ng perimeter.
  • the sash typically comprises an inner glazing and an outer glazing having respectively 5 an in ner surface bounded by an inner glazing peri meter and by an outer surface bounded by an outer glazing peri meter.
  • the sash frame is typically made of wood , metal, polymer, or composite material .
  • the sash frame can be an i nner frame or an outer frame.
  • An “inner frame” is positioned between the glazings so as to be at least partially concealed in the inner glazing perimeter and the outer glazing peri meter.
  • An“outer frame” by contrast, is0 fixed to the external surface of the inner and /or the outer glazing facing the inner and /or outer environment of the window.
  • the outer frame is always visible at least from one of the inner or outer environment of the window.
  • sashes comprising one or more glazings with an inner frame and no outer frame, are designated as“frameless sashes”.
  • Frameless sashes are available on the market since several years and are generally5 characterized by larger transparent see-through areas than corresponding sashes of same dimensions provided with an outer frame.
  • the i nner frame is designed to fulfil the functions of a standard outer frame such as accommodating the hardware required for locking the frameless sash in a closed or a semi-open position (e.g. , tilting) while achieving mechanical, thermal and tightness performances of the frameless sash.
  • an opening system for locking a window, a door or the like, comprises typically a handle designed to rotate-most often using an actuating element, 5 a drive system or a door lock socket.
  • the handle is passing through a hole in the inner and /or outer glazings. The handle is then always visible at least from one of the inner or outer environment of the window.
  • the market trend in the field of frameless sashes windows is the continuous improvement of their aesthetics throug h the transparent see-through area as well as0 through the opening system.
  • the fixed frame may be flush with the inner glazing surface and /or with the outer glazing surface or the fixed frame may be inboard from the inner glazing surface and /or with the outer glazing surface.
  • the inner frame must also accommodate the hardware required for locking the frameless sash in a closed or a semi-open position (e.g., tilting).
  • hi nges al lowing openi ng and closing of the window by rotation of the sash relative to the fixed frame can also be enclosed within the inner frame so as not to be visible from either side of the window.
  • the hardware required0 for locking the window does no comprise the typical handle passing through the inner and /or the outer glazings.
  • the main technical challenge is hence to identify the right way to design a window with a complete frameless aspect or glassy look while ensuring safety for users, especially for users living in the inner environment.
  • the surfaces of the inner and/or outer glazings being flush with the inner and/or outer faces of the fixed frame profiles are no 5 more retained in case of bonding failure between the glazings and sash elements.
  • the glazings are no more retained in case of bonding failure.
  • the sharp glassy corners of the inner and/or outer glazings are not protected as the frameless sash is free 0 of outer frame. Hence, it may happen that the user bump into said sharp glassy corners.
  • a complete frameless aspect is for example disclosed in EP2436865 describing a frameless sash having an inner and an outer glazings glued onto an insert made of hollow profiles and wherein the fixed frame is inboard from the inner glazing.
  • WO201 81 78425 a frameless sash having a motorized locking system managed by a5 control module in connection with sensors is described. The hardware required for locking the window is then free of an handle passing through a hole in glazings.
  • the enclosure formed by glazed surfaces and opening practicable is constituted by continuous flat surfaces without handles or projections.
  • the present invention relates to a window extending along a plane, P, defined by a longitudinal axis, X, and a vertical axis, Z, comprising an handle free frameless sash and a fixed frame.
  • the handle free frameless sash comprises: an inner glazing having an inner glazing external surface and an inner glazing internal surface, and an outer glazing having an outer glazing external surface and an outer glazing internal surface.
  • the inner and outer glazings are free of an outer frame and free of a passing-through handle, are separated by a gap defined within a peripheral spacer, have respectively a bottom edge 0 and a top edge extending parallel to the longitudinal axis, X, and lateral edges extending parallel to the vertical axis, Z, and have respectively inner and outer peripheral bands and inner and outer peripheral corners.
  • the inner glazing external surface is separated from the outer glazing external surface, by a sash thickness measured in the direction normal to the plane, P.
  • the handle free frameless sash comprises an inner frame 5 positioned in a volume between the inner and outer glazings and between the peripheral spacer and the edges of the inner and outer glazings respectively.
  • the fixed frame defines a frame opening, has an outer face and an inner face defining a frame thickness measured in the direction normal to the plane, P.
  • the0 inner face of the fixed frame is flush with the inner glazing external surface, when the handle free frameless sash is in closed position.
  • the handle free frameless sash comprises a inner retaining safety device for retaining the inner glazing external surface to the inner frame.
  • the inner retaining safety device is preferably positioned on an inner peripheral5 band and/or on an inner peripheral corner, more preferably on an inner peripheral corner of the inner glazing.
  • the inner glazing further comprises a hole, preferably a chamfered hole, and the inner retaining safety device is preferably a fastening mean passing through the hole of the inner glass, more preferably is a screw.
  • the handle free frameless sash further comprises a bottom inner supporting safety device for su pporting the bottom edge, of the inner glazing onto the inner frame.
  • a bottom inner supporting safety device for su pporting the bottom edge, of the inner glazing onto the inner frame.
  • Such bottom inner supporting safety device has preferably 5 a cross section in the direction normal to the plane, P; comprising a bottom transverse portion extend ing transverse to the bottom edge of the inner glazing, and abutting to the inner frame.
  • Such bottom inner supporting safety device can also have a cross section in the direction normal to the plane, P, comprising (a) a bottom transverse portion extending transverse to the bottom edge of the inner glazing and, (b) a first vertical0 portion, extending along the vertical axis, Z, having a top end and a bottom end , said vertical portion being connected to the bottom transverse portion and abutting the inner glazing internal surface and the inner frame.
  • the cross section of the bottom inner supporting safety device further comprise a top transverse portion extending transverse to the top end of the first vertical portion and 5 abutting the inner frame.
  • the bottom edge of the inner or outer g lazing is stepped outwardly with respect to the bottom edge of the outer or inner glazing, more preferably the bottom edge of the inner glazing is stepped outwardly with respect to the bottom edge of the outer glazing, defining at least an interspace extend ing between the0 inner and outer glazings from the inner frame to the bottom edges of the inner and outer glazings.
  • the inner retaining safety device of the handle free frameless sash of the window of the present invention is the bottom inner support safety device as described above, wherein the cross section of said bottom inner support safety5 device further comprises a second vertical portion extending along the vertical axis, Z, from the bottom transverse portion and abutting the inner glazing external surface.
  • the handle free frameless sash further comprises a second inner retaining safety device.
  • This second i nner retaining safety device has a cross section in the direction normal to the plane, P; wherein the cross section comprises (a) a lateral transverse portion extending transverse to the lateral edge of the inner glazing and to the i nner frame, and (b) a first longitudinal portion extendi ng along the longitudinal axis, X, from the lateral transverse portion and abutting the inner glazing 5 external surface.
  • the second retaining safety device is positioned on an inner peripheral corner and is connected to the bottom inner supporting safety device as described above, preferably is connected to the bottom inner supporting safety device wherein its cross section further comprises a second vertical portion extend ing along the vertical axis, Z, from the bottom transverse portion and 0 abutting the inner glazing external surface.
  • the handle free frameless sash further comprises a third inner retaining safety device.
  • This third in ner retaining safety device has a cross section i n the direction normal to the plane, P; wherein the cross section comprises (a) a top transverse portion , extending transverse to the top edge of the inner glazing and to 5 the inner frame, and (b) a first vertical portion extending along the vertical axis, Z, from the top transverse portion and abutting the inner glazing external surface.
  • the handle free frameless sash can be coupled to the fixed frame in one of the following manners: (a) the handle free frameless sash is fixedly coupled to the fixed frame in the closed position, or (b) the handle free frameless sash is movingly0 coupled to the fixed frame such that the handle free frameless sash can reversibly move with respect to the fixed frame from the closed position to an open position, wherein the handle free frameless sash leaves open at least a portion of the frame opening.
  • the handle free frameless sash further comprises one intermediate glazing forming a three glazing unit formed by an inner, intermediate and5 an outer glazing separated from one another by two gaps, each gap being defined within a peripheral spacer.
  • the handle free frameless sash when the handle free frameless sash is in the closed position, the outer face of the fixed frame is flush with the outer glazing external surface.
  • the handle free frameless sash further comprises an outer retaining safety device for retaining the outer glazing surface to the inner frame.
  • the outer retaining safety device is positioned on an outer peripheral band and/or on an outer peripheral corner of the outer glazing perimeter, preferably on an 5 outer peripheral corner.
  • the present invention further relates to an assembly comprising a wall separating an inner environment from an outer environment and provided with a through opening in the form of a tunnel defined by a tunnel perimeter, and at least a window as described above.
  • the wall has a thickness measured in the direction normal to the plane, P; which 0 is greater than or equal to the thickness of the fixed frame.
  • the inner face of the fixed frame is flush with the wall and/or the outer face of the fixed frame is flush with the wall, preferably the inner face of the fixed frame is flush with the wall.
  • Figure 1 shows a casement window with two frameless sashes opening by rotation about vertical axes.
  • Figures 2 (a) and (b) show cross-sectional views of windows according to one0 embodiment of the present invention wherein the handle free frameless sash comprises a screw as the inner retaining safety device.
  • Figure B (a) to (d) show cross-sectional views of handle free frameless sashes wherein the inner retaining safety device is a screw and further comprising a bottom supporting safety device, according to various embodiments of the present invention.
  • Figure 4 (a) to (c) shows cross-sectional views of handle free frameless sashes wherein the inner retaining safety device is a bottom inner supporting safety device according to alternative embodiments of the present invention.
  • Figure 5 shows a perspective view of two connected inner safety devices: one inner retaining safety device is a bottom inner supporting safety device and the other is a second retaining safety device, according to a further embodiment of the present invention.
  • Figure 6 (a) to (c) show perspective views of handle free frameless sashes illustrating different combinations of inner retaining safety device(s) with outer retaining safety device(s) according to further various embodiment of the present invention.
  • Figure 7 shows a cross-sectional view of a handle free frameless sash forming a triple glazing unit according to one embodiment of the present invention.
  • the object of the present invention is to provide a window with an improved safety profile, especially safety for users living in the inner environment.
  • the retaining safety device of the window of 5 the present invention by retaining the inner glazing to the inner frame, provides such required safety profile.
  • Frameless sash by definition do not comprise an outer frame. Therefore, it is the inner frame that is designed to fulfil the standard functions of the outer frame such as accommodating the hardware required for locking the frameless sash.
  • the inner retaining safety device by fixing the inner glazing to the0 inner frame, creates a mechanical bonding between the fixed frame and the inner glazing through the hardware. It has been further surprisingly found that the retaining safety device allows the flush alignment between the handle free frameless sash and the fixed frame and thereby contribute significantly to the total glassy look aesthetics required by the market. Furthermore, the retaining safety device within the handle free frameless5 window of the present invention maintains the mechanical, thermal and tightness performances of the frameless sash.
  • the window of the present invention allows to provide new aesthetic and secure concepts in the building industry. These and other advantages are descri bed in more details in the following sections.
  • sash By“handle free frameless sash”, it is hereby meant a sash comprising an inner and outer glazings and an inner frame. It does not comprise an outer frame, nor a passing 5 through handle.
  • inner frame are understood to mean a sash frame which is positioned between the inner and the outer glazings so as to be at least partially concealed in an inner and an outer glazing perimeters.
  • outer frame by contrast, are understood to mean the sash frame which is fixed to external surfaces of the inner and the outer glazings facing respectively an inner and an outer environment 0 of the window.
  • free of passing throug h handle are understood to mean that the inner and outer glazi ngs do not comprise a handle passing through the inner glazing nor passing through the outer glazing nor passing through the inner and outer glazings.
  • flush used in relation to surfaces, is herein understood to mean that a surface is aligned to another surface to form a continuous plane, with a fl ush tolerance 5 thickness, measured in the direction normal to the plane, P, which is at most + /- 5 mm, preferably at most + /- 3mm, more preferably at most + /- 2 mm and even more preferably by 0 mm.
  • the terms“retaining safety device” are understood to encompass devices capable of maintaining the inner and /or outer glazing(s) i n their mounting state even in case of0 bond ing failure between the inner and /or the outer glazing and the sash elements.
  • the bond ing is typically assu red by the structural resi n.
  • Windows according to the invention include openable windows such as casement windows, like single sash windows and stulp windows, tilt-and-rotate windows and glass doors in general as wel l as non-openable windows.
  • the window is a stul p window.
  • stulp window it is meant that the casement window does not comprise central mullion(s) (i.e., a central pillar forming part of the fixed frame) and comprise at least two sashes. These two sashes have respectively one lateral edge facing the other when the sashes are in the closed position.
  • the term“a” means one or more.
  • the window of the present invention extends along a plane, P, defined by a longitudinal axis, X, and a vertical axis, Z. It comprises an handle free frameless sash (1 0) and a fixed frame (20).
  • the handle free frameless sash has generally four edges defining typically a rectangle.
  • the handle free frameless sash has 0 indeed no outer frame an is free of passing-through handle.
  • the handle free frameless sash comprises at least an inner glazing, an outer glazing and an inner frame.
  • the inner and outer glazings of a frameless sash are adhesively bonded by a structural resin (1 6) to the sash elements such as the inner frame and peripheral 5 spacers, rather than mechanically anchored to the sash frame.
  • Each inner and outer glazings have respectively an inner glazing perimeter and an outer glazing perimeter as well as an inner glazing surface and an outer glazing surface.
  • each inner and outer glazings have respectively a bottom edge, BotE, and a top edge, TopE, both extending parallel to the longitudinal axis, X, and lateral0 edges, LatE, both extending parallel to the vertical axis, Z.
  • each inner and outer glazing have respectively inner and outer peripheral bands (1 41 , 1 42) and inner and outer peripheral corners (1 51 , 1 52). Said peripheral bands and corners are extending respectively inwardly from bottom, top and lateral edges of the inner and outer glazings, preferably to reach at most the peripheral spacer.
  • the window of the present invention can be used to close the opening of a wall (30) separating an inner environment from an outer environment.
  • the inner glazing is facing the inner environment while the outer glazing is facing with the outer environment.
  • the handle free frameless sash within the window of the present invention comprises inner (1 01 ) and outer glazings (1 0h) separated by a gap (1 21 ) defined within a peripheral spacer (1 31 ).
  • the inner and outer glazings surfaces are both provided with a glazing internal surface facing the gap 5 designated as the inner glazing internal surface (IGis) and the outer glazing internal surface (OGis) as wel l as a glazing external surface facing the inner or outer environ ments designated as the inner glazing external surface (IGes) and the outer glazing external surface (OGes).
  • the window of the present invention comprises a fixed frame (20) defi ning a0 frame opening, having an outer face and an inner face and having a frame thickness,
  • the window comprises typically sealing elements (40) for sealingly closing the frame opening when the frameless sash is in the closed 5 position.
  • sealing elements 40
  • the inner and outer glazing perimeters of the frameless sash are coupled to i nner and outer frame perimeters of the fixed frame, respectively.
  • the surface of the inner glazing is greater or smaller than the surface of the outer glazing.
  • Such surface differential will result in one or more of the top, bottom and /or lateral edges of the inner or outer glazing being stepped outwardly with respect of the corresponding edges of the outer or inner glazing.
  • the inner frame defines an interspace (1 7) extending between inner surfaces of the inner and outer glazings from the inner frame to the bottom edges of the in ner and outer glazings respectively.
  • the bottom edge of the in ner glazing is stepped outwardly with respect to the bottom edge of the outer glazing as illustrated in Figures 2(b).
  • the handle free frameless sash of the present invention has a sash thickness, W1 0, measured in the direction normal to the plane, P, extending between the external 5 surface of the inner glazing, IGes, and the external surface of the outer glazing, OGes.
  • the thickness of the handle free frameless sash of the present invention is not more than 85 mm, more preferably not more than 75 mm and even more preferably not more than 70 mm.
  • the handle free frameless sash comprises an inner frame (1 1 ) extending over a whole perimeter of the frameless sash.
  • the inner frame is positioned within a volume defined between the inner and outer glazings and, between the peripheral spacer and the edges of the inner and outer glazings respectively.
  • said volume is further filled with a structural resin (1 6).
  • structural it is0 meant the ability to bear and transfer loads, in particular related to the weight of the glazing and to thermal expansion stresses.
  • the structural resin can be a silicon resin, which generally combine good mechanical properties and high thermal insulating properties and ability to form air- / water-tight seals.
  • the inner frame can be made of wood, polymer, fibre reinforced composite, or5 metal such as steel or aluminium. It is, however, preferred that the inner frame is not made of aluminium for reasons of optimized thermal insulation.
  • the inner frame encloses hardware required for locking / unlocking the handle free frameless sash in an open or closed position. In particular, hinges for opening the handle free frameless sash, I B can also be contained within the inner frame. Within the handle free frameless sash of the present invention, the hardware required for locking the window does not comprise a handle passing through the inner and /or the outer glazings.
  • the inner and outer peripheral bands (1 41 , 1 42) and inner and outer peri pheral corners (1 51 , 1 52) over a height extending inwardly from the bottom, top and lateral edges of the inner and outer glazings, respectively, preferably to at least the peripheral spacer (1 31 ) contacting the corresponding glazing.
  • the in ner and outer0 peripheral bands and the inner and outer peripheral corners have a visible light transmission, TL, at least 50% lower than the inner glazing (1 01 ) and the outer glazing (1 0h), respectively, outside of the respective in ner and outer peripheral bands and corners.
  • the inner and outer peripheral bands and inner and outer peripheral corners are opaque.
  • the inner and /or outer peripheral band and corner can 5 be enamelled, or etched or sand-blasted to create a texture yielding a translucent inner and outer peripheral band and corner.
  • the inner and /or outer peripheral band and corner can also be made (partially) opaque or translucent by applying a film.
  • the inner and /or outer peripheral band and corner can also comprise decorative patterns.
  • the height of the peripheral band, measured from the bottom, top or lateral edges toward the centre of a glazing is preferably comprised between 1 0 and 1 00 mm, more preferably between 1 5 and 80 mm, most preferably between 20 and 60 mm. 5 Fixed frame
  • the handle free frameless sash (1 0) is coupled to a fixed frame (20), the fixed frame defining a frame opening.
  • the fixed frame has the inner face facing the inner environment, and the outer face facing the outer environ ment.
  • the fixed frame has a thickness, W20, measured in the direction normal to the plane, P, from the inner face to the outer face.
  • the frame opening accommodates the handle free 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 5 frame profiles.
  • the fixed frame is composed of the fixed frame profiles covered a by a cover plate.
  • the fixed frame profile can 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.
  • a cover plate over at least a portion of the fixed frame0 profile facing the outer environment.
  • This cover plate must be made of a weathering-resistant material, such as metal (e.g., aluminium, (stainless) steel), UV-resistant polymers or composites, or even ceramics.
  • the thickness, W20, of the fixed frame of the window is greater than or equal to the 5 thickness, W1 0, of the handle free frameless sash, W20 > W1 0, as illustrated in Figure 2 (a) and (b).
  • the fixed frame comprises receiving elements for coupling the handle free0 frameless sash to the fixed frame in the closed position, closing the frame opening.
  • the receiving elements are designed to accommodate the hardware of the inner frame of the handle free frameless sash.
  • the inner face of the fixed frame is flush with the inner glazing external5 surface, IGes, of the handle free frameless sash forming a continuous surface on the window facing the inner environment.
  • the outer face of the fixed frame is also flush with the outer glazing external surface, OGes, of the handle free frameless sash forming a continuous surface on the side of the window facing the outer environment.
  • the flush alignment on one or both sides of the window i.e between the inner glazing, and the inner faces of the fixed fame or between both the inner and outer glazings, and the inner and outer faces of the fixed fame respectively, offers 5 particularly aesthetic design opportunities.
  • the frameless sash is fixed ly coupled to the fixed frame i n the closed position.
  • the fixed coupling can5 however be reversi ble, by dismantli ng the frameless sash from the fixed frame but it cannot open and close like a typical window.
  • the handle free frameless sash is movi ng ly coupled to the fixed frame such that the hand le free frameless sash can reversibly move with respect to the fixed frame from the closed position to an open0 position wherein the handle free frameless sash leaves open at least a portion of the frame opening, with the handle free frameless sash remaining coupled to the fixed frame.
  • At least the bottom edge of the inner glazing is stepped outwardly with respect to outer glazing. This gives the g reat advantage of enhancing sealing of the interface between the handle free frameless sash and the fixed5 frame. It is more preferred that the handle free frameless sash is movingly coupled to the fixed frame and the inner glazing surface is greater than the outer glazing surface.
  • the window of the present invention can further comprise a mechanically, pneumatically or electrically actuating device for reversibly moving the handle free frameless sash with respect to the fixed frame 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 supporting the window.
  • the actuating device can be 5 activated by means of a remote-control system, including a receiver integrated in the handle free frameless sash and/or the fixed frame for actuating the moving of the handle free frameless sash.
  • the remote-control system can preferably also control any functionality of the glazing as discussed in the section entitled “glazing”, such as an electrochromic device, a multimedia connection, an antenna, communication means, a 0 TV set, a light source including a LED, a loudspeaker, a sensor, and the like.
  • the handle free frameless sash within the window of the present invention comprises an inner retaining safety device (1 71 ) to 5 confer safety for users, while offering continuous surfaces between the handle free frameless sash and the fixed frame without any protrusion nor any significant recesses on the inner environment while maintaining mechanical, thermal and tightness performances.
  • the inner retaining safety device (1 71 ) is intended to retain the inner glazing external surface, IGes, to the inner frame (1 1 ).
  • the inner safety retaining device is typically positioned on the inner peripheral band or on the inner peripheral corner of the inner glazing, preferably on the inner peripheral corner.
  • one or more inner safety retaining devices can be used.
  • two inner safety retaining devices are positioned on diagonally opposite peripheral corners.
  • the inner glazing further comprises a hole, preferably a chamfered hole and the inner retaining safety device is a fastening mean passing through the hole of the inner glass.
  • the fastening mean can be a screw or a bolt and is passing through the inner glazing and is then tightened to the inner frame for retaining the inner glazing external surface to the inner frame.
  • fastening mean device is positioned on the top edge peripheral band, even more 5 preferably in the middle of the top edge peripheral band .
  • the fastening mean is a screw passing th rough the inner glass for a cost effective production process and more preferably a screw passing through a chamfered hole in the inner glass for achieving the flush configuration with a flush tolerance which is at most 2 mm and even is 0 mm.
  • the shape of the hole in0 the inner glass can be round, oval , rectangular or square for allowing anti clockwise rotation when the screw is tightened by clockwise rotation.
  • the 5 screw material is typically made of brass, nickel, bronze, aluminiu m, steel, stainless steel or a polymer material.
  • a resilient material can optionally be added such as a polymer material like a polyamide ring positioned between the screw and the hole in the inner glazing for imparting a smooth contact and li miting stress constraints.
  • the inner retaining safety device is a cable positioned on the inner peri pheral corner.
  • the cable being fixed to the inner frame via sealing elements and /or fastening means, is extending from the bottom and /or top edges to lateral edges of the inner glazing external surface. 5 [0060] To further improve the safety of the handle free frameless sash, the weight of the sash depending on the thickness and dimensions of its glazings (1 01 , 1 On) could also be carefully considered. Indeed , the weight of the handle free frameless sash is one further element that may lead to the bond ing failure of structural resin between the inner glazing and the sash elements.
  • the handle free frameless sash further comprises a bottom inner supporting safety device (1 81 1 ) for supporting the inner glazing bottom edge (BotE) onto the inner frame as illustrated in 5 Figures 3 (a) to (d), Figures 4 (a) to (c) and Figure 6 (b) to (d).
  • supporting safety device it is meant a device that help supporting the weight of the glazings of the handle free frameless sash.
  • the bottom inner supporting safety device is positioned at the bottom edge of the inner glazing for supporting the inner glazing while maintaining the flush alignment between the i nner glazing external su rface, IGes, and the inner face of the0 fixed frame when the handle free frameless sash is in closed position, and maintaining the mechanical performances of the handle free frameless sash.
  • bottom inner supporting device(s) relieve some of the constrai ns that would otherwise be supported by the inner retaining safety device(s) allowing to design inner retaining safety devises5 of reduced di mension that would otherwise interfere with the flush alignment.
  • the bottom inner supporting device is fixed onto the inner frame with mechanical means such as screws, rivets or snap-fits, preferably with screws or rivets, or with a combination of mechanical and adhesive means such as an adhesive resin or a double-sided adhesive tape or foam.
  • mechanical means such as screws, rivets or snap-fits, preferably with screws or rivets, or with a combination of mechanical and adhesive means such as an adhesive resin or a double-sided adhesive tape or foam.
  • Selection criteria of the bottom inner supporting safety device include : size, required strength, resistance to corrosion, joint material, cost and temperature.
  • the bottom inner supporting safety device is typically made of aluminium, steel, stainless steel, wood, or polymer material such as a fibre reinforced composite with a polymeric matrix.
  • the bottom inner su pporting safety device be made of a fibre reinforced composite with a polymeric matrix.
  • the reinforcing fibres can be glass, aramid or carbon fibres. For a cost point of view, glass 5 fibres are preferred , but if high mechanical properties are required, carbon fibres can be used instead. Si milarly, for high toughness, aramid fibres can be used. A mixture of fibres can also be envisaged.
  • the reinforcing fibres can be chopped fibres, and the bottom inner supporting safety device can be produced by extrusion of a chopped fibre filled polymer. For h igher mechan ical properties, it is, however, preferred to use continuous 0 fibres.
  • the bottom inner supporting safety device can then be produced continuously by pultrusion.
  • the polymeric matrix can be a thermoset, such as an epoxy, polyester, polyurethane, and the like. Alternatively, it can be a thermoplastic, such as a polyolefin (e.g. , PE, PP), a polyamide (e.g ., PA6, PA66, PA1 2), a polyester (e.g., PET, PEN), polyurethane, or blends or mixtures thereof.
  • the bottom inner supporting safety device (1 81 1 ) has a cross section in the direction normal to the plane, P; wherein said cross section comprises a bottom transverse portion, PI l a, extending transverse to the bottom edge, BotE, of the inner g lazing and abutting to the inner frame (1 1 ).
  • the bottom inner su pporting safety device can comprise further portions as described below.
  • the bottom inner supporting safety device has a cross section in the direction normal to the plane, P,5 wherein said cross section comprises a bottom transverse portion, PI l a, extending transverse to the bottom edge, BotE, of the inner glazing and a first vertical portion, PI 2a, extending along the vertical axis, Z, havi ng a top end and a bottom end, said vertical portion being connected to the bottom transverse portion, PI 1 a and abutting the inner glazing internal surface and the inner frame.
  • PI 3a a top transverse portion, PI 3a, extending transverse to the top end of the first vertical portion, PI 2a, and abutting the i nner frame (1 1 ).
  • the inner retaining safety device (1 71 ) is any one of the bottom inner support safety 0 device (1 81 1 ) as described supra, wherein the cross section of said bottom inner support safety device further comprises a second vertical portion, PI 2 b, extending along the vertical axis, Z, from the bottom transverse portion, P1 1 a, and abutting the inner glazing external su rface, IGes.
  • This configuration can be preferred since it ensures both supporting and retaining functions withi n a single device and therefore is of particular 5 use when the aesthetics of the window is of critical importance.
  • Said second vertical portion can be slightly i nclined within the flush tolerance thickness to allow for some glazing movement.
  • the inner glazing of the handle free frameless sash can be a laminated glazing havi ng an additional glazing laminated to the inner glazing external0 surface by at least one polymer interlayer to give the benefits of enhanced safety and acoustic performances.
  • said second vertical portion, PI 2 b is embedded in the polymer interlayer between the additional glazing and inner glazing.
  • the inner glazing of the hand le free frameless sash5 has a thickness (measured in the direction normal to the plane, P) equal to or greater than 8 mm, more preferably equal to or greater than 1 0 mm and more preferably equal to or greater than 1 2 mm, to give the benefit of enhanced acoustic performance.
  • said second vertical portion, PI 2 b is anchored within a recess into the inner glazing.
  • the window can further comprise a second inner retaining safety device or a third i nner retaining 5 safety device.
  • the second inner retaini ng safety device (1 81 n) is positioned on the lateral edge, LatE, of the inner g lazing (1 01 ) for retaining the inner glazing external su rface, IGes, to the inner frame (1 1 ). Therefore, in a preferred embodi ment, said second i nner retaining safety device (1 81 n) has a cross section in the direction normal to the plane, P; wherein0 the cross section comprises :
  • the third retaining safety device is positioned on the top edge, TopE, of the inner glazing (1 01 ) for retaining the inner glazing external surface, IGes, to the inner frame (1 1 ). Therefore, in a preferred embodi ment, said third inner retaining safety device has a cross section in the direction normal to the plane, P; wherein the cross section0 comprises :
  • the handle free frameless sash has by definition no outer frame. Therefore, its glassy corners are not covered and when the sash is in open position, users might bump into said sharp glassy corners. Therefore, to protect users from the sharp g lassy corners, it is preferred that the handle free frameless sash of the present invention comprises a bottom inner supporting safety device (1 81 1 ) positioned on the bottom edge, BotE, in the peripheral corner (1 51 ) of the inner glazing (1 01 ) connected to a second inner retaining safety device positioned on the lateral edge, LatE, in the corresponding peripheral corner (1 51 ) of the inner glazing (1 01 ), as depicted in Figure 5.
  • the bottom 5 inner supporting safety device (1 81 1 ) may be any one of the embodi ments described above.
  • the cross section of the bottom inner supporting device further comprises the second vertical portion, PI 2 b, to provide as well the retaining function.
  • the second0 retaining safety device i n addition to its safety function, can strengthens the support function of the bottom i nner supporting safety device still ensuring the fl ush alignment between the handle free frameless sash and the fixed frame, and maintaining the mechanical performances of the handle free frameless sash.
  • the cross section of second inner retaining safety device further 5 comprises
  • the handle free frameless sash comprises the inner retaining safety device and preferably, an outer retaining safety device (1 72) for retaining the outer glazing external surface to the inner frame.
  • the outer retaining safety device is0 positioned on the outer peripheral band and /or on the outer peripheral corner of the outer glazing, preferably on the outer peripheral corner, as illustrated in Figures 6 (a) to (d).
  • Such configuration provides especially suitable safety for users, while offering continuous smooth surfaces between the frameless sash and the fixed frame without any protrusion nor any significant recesses extend over both sides of the window facing inner 5 and outer environ ments respectively and maintai ning mechanical, thermal and tightness performances of the handle free frameless sash.
  • the outer retaining safety devices by fixing the outer glazing to the inner frame, creates a mechanical bonding between the fixed frame and the outer glazing through the hardware.
  • All technical features and preferred technical features described in relation to the0 inner safety device (1 71 ) or to the bottom inner supporting safety device (1 81 1 ) or to second inner retaining safety device (1 81 n) or to the third retaining safety device can be applied correspondingly to an outer retaining safety device (1 72) or to a bottom outer supporting safety device (1 821 ) or to a second outer retaining safety device or to a third outer retaining safety device.
  • Said outer retaining device may be combined with anyone of the inner retaining safety device and bottom inner supporting safety devices.
  • the inner and outer retaining safety devices may be further connected for reinforcing the supporting and or retaining of the inner and outer glazing external faces to the inner frame. Preferred combinations are:
  • the handle free frameless sash comprises i n anner and an outer retaining safety devices, preferably 2 screws (1 71 , 1 72) passing through the inner glazing (1 01 ) and the outer glazi ng (1 On) respectively, for fixing
  • the handle free frameless sash comprise a screw as the inner safety retaining device (1 71 ) and bottom inner supporting safety device acting as a further inner safety retaining device (1 821 ), or
  • Figure 6 (c) illustrates an embodi ment with four safety devices: two screws as0 inner (1 71 ) and outer (1 72) retaining safety devices, a bottom outer supporting safety device (1 821 ) and a bottom inner supporting safety device (1 81 1 ), or
  • the handle free frameless sash comprise a screw as the inner safety retaining device (1 71 ) and a bottom inner supporting safety device (1 81 1 ) connected to a bottom outer supporting safety device (1 821 ) acting 5 as a further inner safety retaining device.
  • the handle free frameless sash of the window of the present invention can comprise more than one inner retaining safety devices. It can comprise any combination of one or more inner retaining safety device, with one or more bottom inner supporting safety device, with one or more second inner retaining safety device, with one or more0 third inner retaining safety device, with one or more outer retaining safety device, with one or more bottom outer supporting safety device, with one or more second outer retaining safety device, with one or more third outer retaining safety device.
  • the numbering and positioning of these devices on the edges of the handle free frameless sash of the window of the present invention will be5 carefully adapted for each window, depending on the technical characteristics (size, weight, ...) of the window and the location of use (external constraints).
  • the handle free frameless sash of the window of the present invention can further comprise one intermediate glazing (1 Oi) to form a triple glazing.
  • the handle free frameless sash will comprise an outer- (1 On), intermediate- (1 Oi), and inner-glazing (1 01 ) separated from one another by two gaps (1 21 , 1 2 i), each gap being defined within a peripheral spacer (1 31 , 1 Bi). All techn ical features and preferred technical features 5 descri bed in relation to a double glazing can be applied correspondingly to the tri ple glazing.
  • the handle free frameless sash of the present invention comprises at least an inner and an outer glazings (1 01 , 1 01 i, 1 On) separated by a gap (1 2 1 , 1 2 i) being defined 0 within a peripheral spacer (1 31 , 1 3 i).
  • the peripheral spacer is inserted between the glazing generally by means of butyl or silicone adhesive strips.
  • the peripheral spacer can be hollow i n order to be able to receive for example some drying material.
  • Such peripheral spacer is then perforated to allow the drying material to trap water vapor that is coming in the gap of between the glazings of the handle free frameless sash.
  • the 5 peripheral spacer 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.
  • Said predetermined gas are effective for preventing heat transfer and /or may be used to reduce sound transmission.
  • the peripheral spacer has a0 surrounding shape which spaces apart the glazings on their periphery. It can be made of one piece or can alternatively comprise a plurality of elements having their extremities abutted to form the surrounding shape.
  • the peripheral spacer can be metallic, polymeric, a composite material rei nforced by glass fibres or a mix of several of these materials.
  • the frameless sash is coupled to a fixed frame, itself being seal ingly coupled to a peri meter of a tunnel defined by an opening in a wall , with an inner face of the fixed frame facing an inner environment and an outer face of the fixed frame facing an outer 5 environment, such that the inner environ ment is separated from the outer environ ment by the wall and the window when the frameless sash is in the closed position.
  • the window of the present invention is used for al lowing light to pass through an opening in a wall.
  • a window can be opened to bring in fluid communication inner and outer environ ments separated from one another by said wall.
  • the wall (30) which separates the inner environ ment from the outer environment, is provided with a through opening in the form of a tunnel 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 environ ment and the outer face of the fixed frame facing the outer environment.
  • the wall (30) has a thickness, W30, measured normal to the plane, P.
  • the thickness, W30, of the wall can be greater than or equal to the thickness, W20, of the fixed frame, W30 > W20.
  • the inner face of the fixed frame is flush with the0 wall at the inner environment.
  • the outer face of the fixed frame is flush with the wall at the outer environment.
  • 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 g lazi ng such as a painted or etched or sand-blasted glazing or a combination 0 thereof.
  • the term“g lass” 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-si lica, aluminosilicate or borosil icate, crystalline and polycrystalline glasses.
  • the glass pane can be obtained by a floating process, a drawing process, a rolling process or any other 5 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 is made of soda-l ime-silica glass, aluminosilicate glass or borosilicate glass. More preferably and0 for reasons of lower production costs, the glass pane is made of a soda-li me-silica glass.
  • At least one g lazing preferably consists of a single pre-stressed glass pane.
  • the inner glazing (1 01 ) and /or the outer glazing (1 0h) can be pre-stressed glass panes.
  • the glazing is a pre-stressed glass pane.
  • a pre-stressed glass is a heat strengthened glass, a thermally toughened safety glass, or a chemically strengthened glass.
  • Aluminosil icate-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 thickness of a glazing of a handle free 5 frameless sash is preferably not more than 1 2 mm, preferably not more than 1 0 mm.
  • the sum of thicknesses of all the glazings forming a handle free frameless sash according to the present invention is preferably at most 24 mm and more preferably at most 22 mm.
  • 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,0 expressed with respect to the total weight of glass.
  • Comp. A is an example of a first embodi ment 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 5 frameless sash of the present invention comprise the following components in weight percentage, expressed with respect to the total weight of glass :
  • WO201 6/091 672 WO201 6/ 1 69823 , and WO201 8/001 965.
  • 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 (1 01 , 1 Oi , 1 On) preferably comprises a glass pane provided with a heat ray reflection layer or a low emissivity layer for i mproving the thermal insulating 0 properties of the frameless sash.
  • At least one of the glazing (1 01 , 1 Oi, 1 On) of the hand le free frameless sash can be a multiple glazing.
  • the multiple glazing can be selected among a vacuum insulating glazing (VIG) to yield5 particularly high insulati ng properties, or a lami nated glazing to enhance safety and acoustic performances.
  • VIP vacuum insulating glazing
  • At least one of the glazings (1 01 , 1 Oi, 1 On) 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 to0 an external sti mulation from the environ ment and /or from a user.
  • the interactive glazing can integrate functional elements including one or more of an electrochromic, thermochromic, or photochromic device, a photovoltaic device, a multimedia connection, an antenna, communication means, a TV set, a light source including a LED, a loudspeaker, a sensor incl uding an irradiance-, temperature-,5 acoustic- sensor, and the like, or a combination thereof.
  • the electrochromic device can be controlled manually, with a switch or a remote control, or it can be coupled to a sensor measuring the light irrad iation and by a controller automatically controlling the voltage applied to the electrochromic device as a function of the level of irradiation.
  • the windows of the present invention are preferably highly energy-efficient.
  • the glazings of the handle free frameless sash i.e. , the transparent see-through area of the handle free frameless sash
  • Ug thermal transmittance coefficient

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Wing Frames And Configurations (AREA)

Abstract

La présente invention concerne une fenêtre s'étendant le long d'un plan, P, défini par un axe longitudinal, X, et un axe vertical, Z; la fenêtre comprend un châssis sans cadre exempt de poignée (10) et un cadre fixe (20). Le châssis sans cadre exempt de poignée comprend un vitrage interne (101) présentant une surface externe, IGes, et une surface interne, IGis, et un vitrage externe (10n) présentant une surface externe, OGes, et une surface interne, OGis. Les vitrages interne et externe: • sont exempts d'un cadre externe et d'une poignée traversante, • sont séparés par un espace (121) défini à l'intérieur d'un espaceur périphérique (131), • ont respectivement un bord inférieur (BotE) et un bord supérieur (TopE) s'étendant parallèlement à l'axe longitudinal, X, et des bords latéraux (LatE) s'étendant parallèlement à l'axe vertical, Z, • ont respectivement des bandes périphériques interne et externe (141, 142) et des coins périphériques interne et externe (151 152); la surface externe de vitrage interne, IGes, est séparée de la surface externe de vitrage externe, OGes, par une épaisseur de châssis, W10, mesurée dans la direction perpendiculaire au plan, P; le cadre interne (11) est positionné dans un volume entre les vitrages interne et externe et entre l'espaceur périphérique et les bords des vitrages interne et externe respectivement. Le cadre fixe (20) définit une ouverture et comporte une face externe et une face interne définissant une épaisseur de cadre, W20, mesurée dans la direction perpendiculaire au plan, P; le châssis sans cadre exempt de poignée est caractérisé en ce que la face interne du cadre fixe affleure la surface externe du vitrage interne, IGes, lorsque le châssis sans cadre exempt de poignée est en position fermée, et en ce que le châssis sans cadre exempt de poignée comprend un dispositif de sécurité de retenue interne (171) pour retenir la surface externe du vitrage interne sur le cadre interne.
EP20717856.7A 2019-04-24 2020-04-08 Fenêtre et ensemble comprenant un châssis sans cadre exempt de poignée Pending EP3959405A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19170966 2019-04-24
PCT/EP2020/059995 WO2020216620A1 (fr) 2019-04-24 2020-04-08 Fenêtre et ensemble comprenant un châssis sans cadre exempt de poignée

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EP3959405A1 true EP3959405A1 (fr) 2022-03-02

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EP20717856.7A Pending EP3959405A1 (fr) 2019-04-24 2020-04-08 Fenêtre et ensemble comprenant un châssis sans cadre exempt de poignée

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WO (1) WO2020216620A1 (fr)

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Publication number Priority date Publication date Assignee Title
CN112780161A (zh) * 2021-02-05 2021-05-11 周金华 一种装配式隐框幕墙

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4300481A1 (de) * 1993-01-11 1994-07-14 Kunert Heinz Rahmenlose Isolierverglasung und Verfahren zu deren Herstellung
DE69410644D1 (de) * 1993-01-21 1998-07-09 Italiana Progetti Gerahmte Verglasungseinheit
DE29724726U1 (de) * 1996-08-01 2003-08-28 Geze Gmbh Flügel für ein Fenster, eine Tür o.dgl. sowie Trage- und/oder Randabschlusselement für einen Flügel
DE19733393B4 (de) * 1996-08-01 2007-07-05 Geze Gmbh Glasflügel, insbesondere für Türen, Fenster, Festfelder oder als Fassadenelement
EP2436865A1 (fr) 2010-10-04 2012-04-04 Inles d.d. Fenêtre
WO2015150207A1 (fr) 2014-03-31 2015-10-08 Agc Glass Europe Feuille de verre chimiquement trempable
EP3031783A1 (fr) 2014-12-09 2016-06-15 AGC Glass Europe Feuille de verre chimiquement trempable
US10457585B2 (en) 2015-04-21 2019-10-29 Agc Glass Europe Chemically temperable glass sheet
EP3263534A1 (fr) 2016-06-27 2018-01-03 AGC Glass Europe Feuille de verre chimiquement trempable
ES2694598B1 (es) 2017-03-31 2019-07-09 Cabanero S L Sistema y método de cierre motorizado

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