EP3854977B1 - An ancillary member - Google Patents
An ancillary member Download PDFInfo
- Publication number
- EP3854977B1 EP3854977B1 EP21153854.1A EP21153854A EP3854977B1 EP 3854977 B1 EP3854977 B1 EP 3854977B1 EP 21153854 A EP21153854 A EP 21153854A EP 3854977 B1 EP3854977 B1 EP 3854977B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gasket
- ancillary member
- region
- ancillary
- arrangement
- 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.)
- Active
Links
- 239000000463 material Substances 0.000 claims description 44
- 239000011810 insulating material Substances 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 description 22
- 229920002725 thermoplastic elastomer Polymers 0.000 description 18
- 238000007789 sealing Methods 0.000 description 14
- 238000009434 installation Methods 0.000 description 13
- 238000001125 extrusion Methods 0.000 description 10
- 229920002943 EPDM rubber Polymers 0.000 description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 7
- 239000004411 aluminium Substances 0.000 description 7
- 239000004033 plastic Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000013536 elastomeric material Substances 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 239000007769 metal material Substances 0.000 description 5
- 229920001296 polysiloxane Polymers 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- 239000012858 resilient material Substances 0.000 description 4
- 239000000565 sealant Substances 0.000 description 4
- 239000004590 silicone sealant Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000013521 mastic Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
- E06B1/04—Frames for doors, windows, or the like to be fixed in openings
- E06B1/36—Frames uniquely adapted for windows
- E06B1/363—Bay windows
-
- 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
- E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
- E06B1/62—Tightening or covering joints between the border of openings and the frame or between contiguous frames
- E06B1/68—Tightening or covering joints between the border of openings and the frame or between contiguous frames by profiled external parts
-
- 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
- E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
- E06B1/02—Base frames, i.e. template frames for openings in walls or the like, provided with means for securing a further rigidly-mounted frame; Special adaptations of frames to be fixed therein
-
- 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
- E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
- E06B1/56—Fastening frames to the border of openings or to similar contiguous frames
- E06B1/60—Fastening frames to the border of openings or to similar contiguous frames by mechanical means, e.g. anchoring means
- E06B1/6007—Fastening frames to the border of openings or to similar contiguous frames by mechanical means, e.g. anchoring means between similar contiguous frames
-
- 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
- E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
- E06B1/70—Sills; Thresholds
-
- 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
- E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
- E06B1/04—Frames for doors, windows, or the like to be fixed in openings
- E06B1/26—Frames of plastics
- E06B1/28—Hollow frames
-
- 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
- E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
- E06B1/70—Sills; Thresholds
- E06B2001/707—Thresholds with special provision for insulation
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/04—Wing frames not characterised by the manner of movement
- E06B3/263—Frames with special provision for insulation
- E06B3/26301—Frames with special provision for insulation with prefabricated insulating strips between two metal section members
- E06B3/26305—Connection details
- E06B2003/26312—Snap connections
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/04—Wing frames not characterised by the manner of movement
- E06B3/263—Frames with special provision for insulation
- E06B3/2632—Frames with special provision for insulation with arrangements reducing the heat transmission, other than an interruption in a metal section
- E06B2003/26325—Frames with special provision for insulation with arrangements reducing the heat transmission, other than an interruption in a metal section the convection or radiation in a hollow space being reduced, e.g. by subdividing the hollow space
- E06B2003/26329—Frames with special provision for insulation with arrangements reducing the heat transmission, other than an interruption in a metal section the convection or radiation in a hollow space being reduced, e.g. by subdividing the hollow space the insulating strips between the metal sections being interconnected
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/04—Wing frames not characterised by the manner of movement
- E06B3/263—Frames with special provision for insulation
- E06B2003/26349—Details of insulating strips
- E06B2003/26369—Specific material characteristics
- E06B2003/26374—Specific material characteristics with parts of differing nature
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/04—Wing frames not characterised by the manner of movement
- E06B3/263—Frames with special provision for insulation
- E06B2003/26349—Details of insulating strips
- E06B2003/26387—Performing extra functions
- E06B2003/26389—Holding sealing strips or forming sealing abutments
Definitions
- the present teachings relate to an ancillary member for a fenestration unit and to a fenestration unit incorporating such an ancillary member.
- fenestration units such as windows, doors, and vents
- the frames for these types of fenestration unit are often provided by connecting a series of frame members with a joint at each corner of the frame, e.g. connecting four frame members at four corner connectors to create a standard four-sided frame.
- the frame members may be installed into openings together with ancillary components such as sills under the frame or corner posts between adjacent frames of a bay window.
- connection points between the frame and the ancillary component in the fenestration units are intended to be covered by a separate sealant (e.g. a layer of silicone mastic) to be provided by the installer during the assembly process.
- a separate sealant e.g. a layer of silicone mastic
- This known sealant arrangement is often not provided by inattentive installers, or may provide an insufficient sealant barrier. This may lead to the ingress of water and/or air into, or potentially passing through, the fenestration unit.
- the current process of assembly the frame and the fenestration unit and then subsequently applying a sealant is time consuming.
- the quality and effectiveness of the resultant seal may be dependent upon the skill of the installer.
- US2019093416 discloses a mullion system for a window assembly.
- EP0722033 discloses a corner post for façade composed of plastic framed elements.
- DE102006007742 discloses a ground cill door element for sealing two spaces in ground area.
- US2013/047518A1 discloses a door cill with a cover plate.
- the present teachings seek to overcome or at least mitigate one or more problems associated with the prior art.
- a first aspect provides an ancillary member for a fenestration unit, the ancillary member comprising: an elongate body extending longitudinally between first and second ends thereof, the elongate body defining a cross-sectional profile comprising a first region intended to be externally facing, in use, a second region intended to be internally facing, in use, and first and second side surfaces extending between the first and second regions, wherein the first side surface comprises a first gasket extending at least partially along the elongate length of the body such that the first side surface is configured for sealingly engaging a first window frame; and wherein the ancillary member is a cill and comprises a cill cover, wherein the first region comprises a first mounting arrangement for releasably mounting an external profile of the cill cover thereon, wherein the first mounting arrangement is configured for mounting the external profile to the body via a snap-fitting arrangement, and wherein the first region of the body comprises a second gasket extending at least partially along the e
- This arrangement enables an ancillary member to engage a window frame when it is placed within the assembled frame assembly.
- the member is able to form a seal against said frame without requiring any additional material/processes (e.g. an additional silicone seal), which simplifies the installation of the fenestration unit for an installer.
- Providing a body that is releasably connectable to an external profile allows the body and profile to be made from different material, e.g. to allow the body to be made from an insulating material to provide a thermal break, whilst allowing the external profile to be made from a metallic material, e.g. aluminium, to improve its appearance and match the surrounding frame components.
- This arrangement also enables the external profile to be replaced, e.g. during maintenance, and may reduce wastage of materials at the assembly stage. The use of such a mounting arrangement has been found to simplify the installation of the fenestration unit for an operator.
- this seal on the ancillary member helps to reduce draughts flowing through the assembled fenestration unit and also help to reduce the ingress of water.
- the provision of the second gasket enables an ancillary member to sealingly engage an external profile without requiring any additional material/processes (e.g. an additional silicone seal), which simplifies the installation of the fenestration unit for an operator.
- the first gasket may be integrally formed with the elongate body.
- Integrally forming the sealing member with the body, e.g. via a co-extrusion process, enables the ancillary member to be provided a single unitary body.
- the elongate body may be formed from a substantially rigid material, and the first gasket may be formed from a deformable, e.g. resilient, material.
- thermoplastic elastomer like EPDM
- the body of the ancillary member may be formed from an insulating material.
- This arrangement advantageously provides a thermal break.
- the elongate body may be formed from a rigid material, and the second gasket may be formed from a deformable, e.g. resilient, material.
- the second gasket to be formed from a deformable resilient material, e.g. rubber, has been found to improve the quality of the seal formed against the window frame.
- the second gasket may be integrally formed with the elongate body.
- Integrally forming the sealing member with the body, e.g. via a co-extrusion process, enables the coupling member to be provided a single unitary body.
- the second region may comprise a second mounting arrangement for releasably mounting an internal profile thereon.
- Providing a body that is releasably connectable to an internal profile allows the body and profile to be made from different material, e.g. to allow the body to be made from an insulating material to provide a thermal break, whilst allowing the internal profile to be made from a metallic material, e.g. aluminium, to improve its appearance.
- This arrangement also enables the internal profile to be replaced, e.g. during maintenance.
- the second mounting arrangement may be configured for mounting the internal profile to the body via a snap-fitting arrangement.
- the second region may comprise a third gasket extending at least partially along the elongate length of the body such that the second region is configured for sealingly engaging the internal profile.
- This arrangement enables a frame member to sealingly engage an external profile without requiring any additional material/processes (e.g. an additional silicone seal), which simplifies the installation of the fenestration unit for an operator.
- additional material/processes e.g. an additional silicone seal
- the ancillary member may be positioned between two window frames, and the second region may comprise a third gasket extending at least partially along the elongate length of the body such that the second region is configured for sealingly engaging first and/or second window frames, in use.
- This arrangement works to improve the seal formed between the ancillary member and a window frame, further inhibiting the ingress of air and/or moisture through the fenestration unit.
- the elongate body may be formed from a rigid material, and wherein the third gasket is formed from a deformable, e.g. resilient, material.
- thermoplastic elastomer like EPDM
- the third gasket may be integrally formed with the elongate body.
- Integrally forming the sealing member with the body, e.g. via a co-extrusion process, enables the ancillary member to be provided a single unitary body.
- the second side surface comprises a fourth gasket extending at least partially along the elongate length of the body such that the second side surface is configured for sealingly engaging a second window frame.
- This arrangement enables the ancillary member to form seals against adjacent window frames without requiring any additional material/processes (e.g. an additional silicone seal), which simplifies the installation of the fenestration unit for an installer.
- additional material/processes e.g. an additional silicone seal
- This seal on the frame member helps to reduce draughts flowing through the fenestration unit and also helps to reduce the ingress of water.
- the elongate body may be formed from a rigid material, and the fourth gasket may be formed from a deformable, e.g. resilient, material.
- thermoplastic elastomer like EPDM
- the fourth gasket may be integrally formed with the elongate body.
- Integrally forming the sealing member with the body, e.g. via a co-extrusion process, enables the coupling member to be provided a single unitary body.
- the second side surface may comprise a keying surface for adhering the ancillary member to an opening of a building.
- the keying surface may be provided in the form of a recess extending at least partially along the elongate length of the body.
- the body may comprise a cavity extending at least partially along the elongate length thereof.
- Provision of a cavity extending along the length of the ancillary member body has been found to improve the insulation properties of the ancillary member.
- a reinforcing member may extend through the cavity.
- a reinforcing member e.g. a reinforcing post, beam or pole, extending through the body further increases the strength of the assembled frame assembly.
- a second aspect provides a fenestration unit for an opening of a building, as defined in claim 14.
- FIG. 1 shows a fenestration unit generally indicated at 10.
- the fenestration unit 10 is intended to be mounted within an opening of a wall structure of a building (not shown).
- the fenestration unit 10 includes window frame assembly 12 made up of a series of frame members 14 connected at the edges thereof, e.g. via mitre joints.
- the window frame assembly 12 is substantially square, but in other arrangement the window frame assembly 12 could be rectangular or any other suitable shape.
- An ancillary member 20 in the form of a cill is positioned underneath the window frame assembly 12.
- the fenestration unit 10 of this embodiment is suitable for a window, door or other type of fenestration, such as a vent.
- the window frame assembly includes a glazing unit 16.
- the glazing unit 16 includes two panes of glass 18 spaced apart and lying parallel to each other. However, it will be appreciated that the glazing unit 16 may have one or more than two panes of glass 18. Alternatively, the glazing unit 16 could be replaced with a panel of wood, aluminium or other suitable material. It shall be appreciated that although the glazing unit 16 in this embodiment is a double glazing unit, alternative glazing units, for example opaque panels, for example for doors, may be used.
- Fenestration units 10 of this type are typically used in external walls of domestic and commercial buildings. It is therefore necessary that the fenestration unit 10 meets requirements for thermal insulation, sealing against water ingress, draughts etc.
- the frame member 14 and the ancillary member in the form of the cill 20 of the fenestration unit 10 are illustrated in cross-section.
- the frame member 14 is intended to be a bottom or lower frame member 14.
- the ancillary member 20 defines an elongate body 22 configured to extend along the length of the frame member 14.
- the elongate body 22 defines a cross-sectional profile having a first, externally facing, region 24 and a second, internally facing, region 26.
- the profile of the body 15 defines first and second side surfaces 28, 30 extending between the first and second regions 24, 26.
- the body 22 includes a central cavity 32. It will be appreciated that the cavity 32 may extend along the entirety of the length of the body 22, or may extend partially therealong.
- the cavity provides voids in the body 22 (three in this embodiment) that are delineated by vertical walls of the body. The voids work to improve the insulation properties of the ancillary member 20.
- the ancillary member 20 may include a reinforcing member (not shown) within the cavity in order to improve the structural strength thereof.
- the first side surface 28 of the body 22 includes a first gasket 34 extending along the elongate length of the body 22. It will be appreciated that the first gasket 34 may extend along the entirety of the length of the first side surface 28, or may extend partially therealong. The provision of the first gasket 34 along the first side surface 28 enables the first side surface 28, and so the ancillary member 20, to sealingly engage the window frame member 14 without the use of an additional component (e.g. a line of silicone sealant covering the join between the ancillary member 20 and the window frame member 14).
- an additional component e.g. a line of silicone sealant covering the join between the ancillary member 20 and the window frame member 14.
- the first gasket 34 is integrally formed with the elongate body 22 such that the body 22 and the first gasket 34 are provided as a unitary body.
- the ancillary member 20 is formed from an insulating material so as to provide a thermal break within the ancillary member 20 (i.e. within the cill).
- the elongate body 22 and the first gasket 34 are formed from an insulating material to provide a thermal break within the fenestration unit 10.
- the elongate body 22 is formed from a rigid material, e.g. a rigid plastics material such as unplasticised polyvinyl chloride (uPVC), so as to be able to provide strength to the cill 20.
- the first gasket 34 is formed from a deformable material, e.g. an elastomeric material such as a thermoplastic elastomer (TPE) like EPDM so as to provide an improved seal surface against the window frame member 14.
- TPE thermoplastic elastomer
- the body 22 and the first gasket 34 are formed through a co-extrusion process. It will be appreciated that any suitable process for integrally forming the first gasket 34 and the body 22 may be used.
- the first gasket 34 is provided in the form of a bubble seal.
- the bubble seal 34 bulges outwardly from the first side surface 28 along an arcuate path.
- an external surface of the window frame member 14 abuts against the curved surface of the bubble seal 34 and deforms said bubble seal 34 so as to form a seal therebetween.
- alternative sealing arrangements such as one or more lip seals, may be utilised.
- the body 22 includes a first mounting arrangement 36 for releasably mounting an external profile 38 onto the body 22.
- the first mounting arrangement 36 is provided on the first region 24 of the body 22. Having an external profile 38 that is releasably connectable to the body 22 allows the body 22 and external profile 38 to be made from different materials.
- the body 22 to be made from an insulating material to provide a thermal break, whilst allowing the external profile to be made from a metallic material, e.g. aluminium, to improve its appearance and to provide greater strength and durability.
- the external profile 38 substantially covers (e.g. at least partially covers) the first region 24 of the body 22 to improve the appearance of the ancillary member 20.
- the frame member 14 is intended to be positioned at the bottom of a window frame assembly 12.
- the external profile 38 is a cill cover.
- the first mounting arrangement 36 connects to the external profile 38 via a snap-fitting arrangement.
- the snap-fitting arrangement is provided in the form of a pair of recesses 40 on opposing sides of the first region 24 of the body 22.
- the external profile 38 has corresponding projections 42 on opposing internal surfaces thereof. The projections 42 are configured and arranged to inter-engage with the recesses 40 to attach the external profile 38 to the body 22.
- the body 22 includes a second gasket 44 for sealing against the external profile 38.
- the second gasket 44 is provided on the first region 24 of the body 22 extending along the elongate length of the body 22. It will be appreciated that the second gasket 44 may extend along the entirety of the length of the first region 24, or may extend partially therealong. The provision of the second gasket 44 along the first region 24 enables the first region 24 of the body 22 to sealingly engage the external profile 38 without the use of an additional sealing component.
- the second gasket 44 is integrally formed with the elongate body 22. Put another way, the body 22 and the second gasket 44 are provided as a unitary body.
- the second gasket 44 is formed from a deformable material, e.g. an elastomeric material such as a thermoplastic elastomer (TPE) like EPDM so as to provide an improved seal surface against the window frame member 14.
- a deformable material e.g. an elastomeric material such as a thermoplastic elastomer (TPE) like EPDM
- TPE thermoplastic elastomer
- the body 22 and the second gasket 44 are formed through a co-extrusion process. It will be appreciated that any suitable process for integrally forming the second gasket 44 and the body 22 may be used.
- the first region 24 of the body 22 is provided in the form of a pair of opposing arms 46.
- the distal ends 48 of the arms 46 are spaced apart such that arms 46 are cantilevered on the body 22.
- the recesses 40 are provided on the cantilevered arms 46, which enables them to easily flex together when the projections 42 are push fitted thereon.
- the second gasket 44 extends between the distal ends 48 of the arms 46 such that the arms 46 are flexibly connected together.
- the second gasket 44 is provided in the form of a bubble seal.
- the bubble the seal 44 extends between two opposing and spaced apart ends of the first region 24 of the body 22.
- the first region 24 may not be provided in the form of cantilevered arms, and the body 22 may include an alternative arrangement to enable the recesses 40 to flex inwardly upon push fitting of the projections 42.
- the body 22 includes a second mounting arrangement 50 for releasably mounting an internal profile 52 thereon.
- the second mounting arrangement 50 is provided on the second region 26.
- Having an internal profile 50 that is releasably connectable to the body 22 allows the body 22 and internal profile 52 to be made from different materials. This arrangement enables the body 22 to be made from an insulating material to provide a thermal break, whilst allowing the internal profile to be made from a metallic material, e.g. aluminium, to improve its appearance and to provide greater strength and durability.
- the internal profile 52 substantially covers (e.g. at least partially covers) the second region 26 of the body 22 to improve the appearance of the ancillary member 20.
- both internal and external profiles 38, 52 that are releasably connectable to the body 22 enables differently coloured or shaped profiles of the external and internal profiles 38, 52 to be selected to suit the application (i.e. to match differently coloured internal and external walls of a building). This in turn may enable window and door installers to minimise wastage of external profiles by assembling the desired combination of profile colour and/or shape at or near to the point of installation from a selection of available profiles, by cutting the profiles to the required length and keeping the remainder for future jobs, rather than having to pre-order the a minimum length of complete ancillary member from a supplier, much of which may ultimately go to waste.
- the second mounting arrangement 50 connects to the internal profile 52 via a snap-fitting arrangement.
- the snap-fitting arrangement is provided in the form of a pair of recesses 54 on opposing sides of the second region 26 of the body 22.
- the internal profile 52 has corresponding projections 56 on opposing internal surfaces thereof.
- the projections 56 are configured and arranged to inter-engage with the recesses 54 to attach the internal profile 52 to the body 22. It will be appreciated that any suitable releasable connection arrangement between the internal profile 52 and the body 22 may be used in alternative arrangements.
- the body 22 includes a third gasket 62 for sealing against the internal profile 52.
- the third gasket 62 is provided on the second region 26 of the body 22 extending along the elongate length of the body 22. It will be appreciated that the third gasket 62 may extend along the entirety of the length of the second region 26, or may extend partially therealong. The provision of the third gasket 62 along the second region 26 enables the second region 26 of the body 22 to sealingly engage the internal profile 52 without the use of an additional sealing component.
- the third gasket 62 is integrally formed with the elongate body 22. Put another way, the body 22 and the third gasket 62 are provided as a unitary body.
- the third gasket 62 is formed from a deformable material, e.g. an elastomeric material such as a thermoplastic elastomer (TPE) like EPDM so as to provide an improved seal surface against the window frame member 14.
- TPE thermoplastic elastomer
- the body 22 and the third gasket 62 are formed through a co-extrusion process. It will be appreciated that any suitable process for integrally forming the third gasket 62 and the body 22 may be used.
- the second region 26 of the body 22 is provided in the form of a pair of opposing arms 58.
- the distal ends 60 of the arms 58 are spaced apart such that arms 58 are cantilevered on the body 22.
- the recesses 54 are provided on the cantilevered arms 58, which enables them to easily flex together when the projections 56 are push fitted thereon.
- the third gasket 62 extends between the distal ends 60 of the arms 58 such that the arms 58 are flexibly connected together.
- the third gasket 62 is provided in the form of a bubble seal.
- the bubble the seal 62 extends between two opposing and spaced apart ends of the second region 26 of the body 22.
- the second region 26 may not be provided in the form of cantilevered arms, and the body 22 may include an alternative arrangement to enable the recesses 54 to flex inwardly upon push fitting of the projections 56.
- the second and third gaskets 44 and 62 inhibit the relative sliding of the external and internal profiles 38, 52 with respect to the body, which may assist with the handling of the ancillary member 20 during shipping and installation.
- the ancillary member 20 includes an alignment arrangement for aligning a window frame member 14 thereon.
- the ancillary member or cill 20 includes an upstand 64 to abut against a portion of the window frame assembly 12 for aligning the window frame 14 with the cill 20 during installation.
- the second side surface 30 of the body 22 includes a keying surface 66 for improving adhesion of the ancillary member 20 to an opening of a building (e.g. to the mortar of the opening).
- the keying surface 66 is provided in the form of a recess along the second side 30 of the body 22. It will be appreciated that the keying surface 66 may extend along the entirety of the length of the second side 30, or may extend partially therealong.
- a fenestration unit is illustrated and generally indicated at 110.
- the fenestration unit 110 is intended to be mounted within an opening of a wall structure of a building (not shown).
- the fenestration unit 110 includes a window frame assembly 112 for positioning in an opening of a building.
- the window frame assembly 112 is formed from a series of window frame members 114 arranged so as to define a series of window frame openings (e.g. square or rectangular openings) within the fenestration unit 110 that forms a bay window.
- the window frame assembly 112 includes a glazing unit 116 positioned within each opening.
- the glazing unit 116 includes two panes of glass spaced apart and lying parallel to each other. However, it will be appreciated that the glazing unit 116 may have one or more than two panes of glass. Alternatively, the glazing unit 116 could be replaced with a panel of wood, aluminium or other suitable material.
- Fenestration units 110 of this type are typically used in external walls of domestic and commercial buildings. It is therefore necessary that the fenestration unit meets requirements for thermal insulation, sealing against water ingress, draughts etc.
- Adjacent openings within the fenestration unit 110 are arranged at an angle relative to each other (i.e. the adjacent openings are not co-planar), and are connected by an ancillary member 120.
- the ancillary member 120 is provided as a corner post (i.e. a substantially upright member).
- the fenestration unit 110 of this embodiment is suitable for a window, door or other type of fenestration, such as a vent.
- the ancillary member 120 i.e. a corner post
- the ancillary member 120 is illustrated interposed between frame members 114 of adjacent window frame openings.
- the ancillary member 120 defines an elongate body 122 configured to extend along the length of the frame member 114.
- the elongate body 122 defines a cross-sectional profile having a first, externally facing, region 124 and a second, internally facing, region 126.
- the profile of the body 122 defines first and second side surfaces 128, 130 extending between the first and second regions 124, 126.
- the body 122 includes a central cavity 132. It will be appreciated that the cavity 132 may extend along the entirety of the length of the body 122, or may extend partially therealong. The cavity 132 provides an empty region in the body 122, which works to improve the insulation properties of the corner post 120.
- the corner post 120 also includes a reinforcing member 168 within the cavity 132.
- the reinforcing member is provided in the form of a metallic tube, but it will be appreciated that any suitable shaped reinforcing member may be used. 21 in order to improve the structural strength of the ancillary member 120 and to transmit load from masonry above the fenestration unit 110 to that below. It will be appreciated that in some arrangements, the reinforcing member 168 may be omitted.
- the first side surface 128 of the body 122 includes a first gasket 134 extending along the elongate length of the body 122. It will be appreciated that the first gasket 134 may extend along the entirety of the length of the first side 128, or may extend partially therealong. The provision of the first gasket 134 along the first side 128 enables the first side surface 128, and so the ancillary member 120, to sealingly engage the window frame 114 without the use of an additional component (e.g. a line of silicone sealant covering the join between the corner post 120 and the window frame member 114).
- an additional component e.g. a line of silicone sealant covering the join between the corner post 120 and the window frame member 114.
- the first gasket 134 is integrally formed with the elongate body 122 such that the body 122 and the first gasket 134 are provided as a unitary body.
- the body 122 is formed from an insulating material so as to provide a thermal break within the ancillary member 20 (i.e. within the cill).
- the elongate body 122 and the first gasket 134 are formed from an insulating material to provide a thermal break within the fenestration unit 110.
- the elongate body 122 is formed from a rigid material, e.g. a rigid plastics material such as unplasticised polyvinyl chloride (uPVC), so as to be able to provide strength to the corner post 120.
- the first gasket 134 is formed from a deformable material, e.g. an elastomeric material such as a thermoplastic elastomer (TPE) like EPDM so as to provide an improved seal surface against the window frame member 114.
- TPE thermoplastic elastomer
- the body 122 and the first gasket 134 are formed through a co-extrusion process. It will be appreciated that any suitable process for integrally forming the first gasket 134 and the body 122 may be used.
- the first gasket 134 is provided in the form of a bubble seal.
- the bubble seal 134 bulges outwardly from the first side surface 128 along an arcuate path.
- external surface of the window frame member 114 abuts against the curved surface of the bubble seal 134 and deforms said bubble seal 134 so as to form a seal therebetween.
- alternative sealing arrangements such as one or more lip seals, may be utilised.
- the second side surface 130 of the body 122 includes a second gasket 172 extending along the elongate length of the body 122. It will be appreciated that the second gasket 172 may extend along the entirety of the length of the second side surface 130, or may extend partially therealong. The provision of the second gasket 172 along the second side surface 130 enables the second side surface 130, and so the ancillary member 120, to sealingly engage the second window frame 114 without the use of an additional component (e.g. a line of silicone sealant covering the join between the ancillary member or corner post 120 and the window frame member 114).
- an additional component e.g. a line of silicone sealant covering the join between the ancillary member or corner post 120 and the window frame member 114.
- the second gasket 172 is integrally formed with the elongate body 122. Put another way, the body 122 and the second gasket 172 are provided as a unitary body.
- the second gasket 172 is formed from a deformable material, e.g. an elastomeric material such as a thermoplastic elastomer (TPE) like EPDM so as to provide an improved seal surface against the window frame member 114.
- a deformable material e.g. an elastomeric material such as a thermoplastic elastomer (TPE) like EPDM
- TPE thermoplastic elastomer
- the body 122 and the fourth gasket 172 are formed through a co-extrusion process. It will be appreciated that any suitable process for integrally forming the fourth gasket 172 and the body 122 may be used.
- the first region 124 is provided with a first mounting arrangement 136 for releasably mounting an external profile 138 thereon.
- Having an external profile 138 that is releasably connectable to the body 122 allows the body 122 and external profile 138 to be made from different materials.
- This arrangement enables the body 122 to be made from an insulating material to provide a thermal break, whilst allowing the external profile 138 to be made from a metallic material, e.g. aluminium, to improve the appearance of the fenestration unit 110 and to match the appearance of the adjoining frame members 114.
- the external profile 138 substantially covers (e.g. at least partially covers) the first region 124 of the body 122 to improve the appearance of the fenestration unit 110.
- the external profile 138 may also be arranged so as to cover the outer interface between the corner post 120 and the first and/or second frame member 114.
- the first mounting arrangement 136 connects to the external profile 138 via a snap-fitting arrangement.
- the snap-fitting arrangement is provided in the form of a pair of recesses 140 on opposing sides of a channel 170 on the first region 124 of the body 122.
- the external profile 138 has corresponding projections 142 on opposing internal surfaces thereof, where the projections are configured and arranged to inter-engage with the recesses 140 to attach the external profile 138 to the body 122. It will be appreciated that any suitable releasable connection arrangement between the external profile 138 and the body 122 may be used in alternative arrangements.
- the ancillary member or corner post 120 is positioned between frame member 114 arranged at an angle to each other.
- the body includes a third gasket 162 for sealing against the window frame members 114.
- the third gasket 162 is provided on the second region 126 of the body 122 and extends along the elongate length of the body 122. It will be appreciated that the third gasket 162 may extend along the entirety of the length of the second region 126, or may extend partially therealong.
- the provision of the third gasket 162 along the second region 126 enables the second region 126 of the body 122 to sealingly engage the first and second window frame members 114.
- the combination of the first, second and third gaskets 134, 162 provides inner and outer seals between the frame members 114 and the corner post 120, which further helps to inhibit the ingress of air and/or moisture between the frame member 114 and the corner post 120.
- the third gasket 162 is integrally formed with the elongate body 122. Put another way, the body 122 and the third gasket 162 are provided as a unitary body.
- the third gasket 162 is formed from a deformable material, e.g. an elastomeric material such as a thermoplastic elastomer (TPE) like EPDM so as to provide an improved seal surface against the window frame member 114.
- a deformable material e.g. an elastomeric material such as a thermoplastic elastomer (TPE) like EPDM
- TPE thermoplastic elastomer
- the body 122 and the third gasket 162 are formed through a co-extrusion process. It will be appreciated that any suitable process for integrally forming the third gasket 162 and the body 122 may be used.
- the ancillary member 120 includes a first alignment arrangement for aligning a first frame member 114 thereon.
- the ancillary member or corner post 120 includes a projection 174 extending from the first side surface 128.
- This projection 174 provides a surface for a corresponding surface of a frame member 114 to abut against during installation to aid alignment.
- the first alignment arrangement includes a recessed portion 176 on the first side surface 128. The recessed portion 176 is arranged so as to abut against a corresponding projection 178 of the frame member 114 during installation to aid alignment therebetween.
- the ancillary member 120 includes a second alignment arrangement for aligning a second frame member 114 thereon.
- the ancillary member or corner post 120 includes a projection 174 extending from the first side surface 128.
- This projection 180 provides a surface for a corresponding surface of a frame member 114 to abut against during installation to aid alignment.
- the first alignment arrangement includes a recessed portion 182 on the first side surface 128. The recessed portion 182 is arranged so as to abut against a corresponding projection 184 of the frame member 114 during installation to aid alignment therebetween.
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
- Building Environments (AREA)
Description
- The present teachings relate to an ancillary member for a fenestration unit and to a fenestration unit incorporating such an ancillary member.
- Certain types of fenestration units, such as windows, doors, and vents, are positioned within openings of walls of a building using a frame. These units may also open and close by pivoting relative to the frame. The frames for these types of fenestration unit are often provided by connecting a series of frame members with a joint at each corner of the frame, e.g. connecting four frame members at four corner connectors to create a standard four-sided frame. The frame members may be installed into openings together with ancillary components such as sills under the frame or corner posts between adjacent frames of a bay window.
- In such known fenestration units, the connection points between the frame and the ancillary component in the fenestration units are intended to be covered by a separate sealant (e.g. a layer of silicone mastic) to be provided by the installer during the assembly process. This known sealant arrangement is often not provided by inattentive installers, or may provide an insufficient sealant barrier. This may lead to the ingress of water and/or air into, or potentially passing through, the fenestration unit. Moreover, the current process of assembly the frame and the fenestration unit and then subsequently applying a sealant is time consuming. Moreover, the quality and effectiveness of the resultant seal may be dependent upon the skill of the installer.
US2019093416 discloses a mullion system for a window assembly.EP0722033 discloses a corner post for façade composed of plastic framed elements.DE102006007742 discloses a ground cill door element for sealing two spaces in ground area.US2013/047518A1 discloses a door cill with a cover plate. - The present teachings seek to overcome or at least mitigate one or more problems associated with the prior art.
- A first aspect provides an ancillary member for a fenestration unit, the ancillary member comprising: an elongate body extending longitudinally between first and second ends thereof, the elongate body defining a cross-sectional profile comprising a first region intended to be externally facing, in use, a second region intended to be internally facing, in use, and first and second side surfaces extending between the first and second regions, wherein the first side surface comprises a first gasket extending at least partially along the elongate length of the body such that the first side surface is configured for sealingly engaging a first window frame; and wherein the ancillary member is a cill and comprises a cill cover, wherein the first region comprises a first mounting arrangement for releasably mounting an external profile of the cill cover thereon, wherein the first mounting arrangement is configured for mounting the external profile to the body via a snap-fitting arrangement, and wherein the first region of the body comprises a second gasket extending at least partially along the elongate length of the body such that the first region is configured for sealingly engaging the external profile of the cill cover.
- This arrangement enables an ancillary member to engage a window frame when it is placed within the assembled frame assembly. The member is able to form a seal against said frame without requiring any additional material/processes (e.g. an additional silicone seal), which simplifies the installation of the fenestration unit for an installer.
- Providing a body that is releasably connectable to an external profile allows the body and profile to be made from different material, e.g. to allow the body to be made from an insulating material to provide a thermal break, whilst allowing the external profile to be made from a metallic material, e.g. aluminium, to improve its appearance and match the surrounding frame components. This arrangement also enables the external profile to be replaced, e.g. during maintenance, and may reduce wastage of materials at the assembly stage. The use of such a mounting arrangement has been found to simplify the installation of the fenestration unit for an operator.
- The provision of this seal on the ancillary member helps to reduce draughts flowing through the assembled fenestration unit and also help to reduce the ingress of water. The provision of the second gasket enables an ancillary member to sealingly engage an external profile without requiring any additional material/processes (e.g. an additional silicone seal), which simplifies the installation of the fenestration unit for an operator.
- The first gasket may be integrally formed with the elongate body.
- Integrally forming the sealing member with the body, e.g. via a co-extrusion process, enables the ancillary member to be provided a single unitary body.
- The elongate body may be formed from a substantially rigid material, and the first gasket may be formed from a deformable, e.g. resilient, material.
- Providing a body formed from a rigid material, e.g. a plastics material such as uPVC, increases the stability of the fenestration unit.
- Providing the first gasket to be formed from a deformable resilient material, e.g. a thermoplastic elastomer (TPE) like EPDM, has been found to improve the quality of the seal formed against the window frame.
- The body of the ancillary member may be formed from an insulating material.
- This arrangement advantageously provides a thermal break.
- The provision of this seal on the ancillary member helps to reduce draughts flowing through the fenestration unit and also help to reduce the ingress of water.
- The elongate body may be formed from a rigid material, and the second gasket may be formed from a deformable, e.g. resilient, material.
- Providing a body formed from a rigid material, e.g. a plastics material such a polyamide, increases the stability of the fenestration unit.
- Providing the second gasket to be formed from a deformable resilient material, e.g. rubber, has been found to improve the quality of the seal formed against the window frame.
- The second gasket may be integrally formed with the elongate body.
- Integrally forming the sealing member with the body, e.g. via a co-extrusion process, enables the coupling member to be provided a single unitary body.
- The second region may comprise a second mounting arrangement for releasably mounting an internal profile thereon.
- Providing a body that is releasably connectable to an internal profile allows the body and profile to be made from different material, e.g. to allow the body to be made from an insulating material to provide a thermal break, whilst allowing the internal profile to be made from a metallic material, e.g. aluminium, to improve its appearance.
- This arrangement also enables the internal profile to be replaced, e.g. during maintenance.
- The second mounting arrangement may be configured for mounting the internal profile to the body via a snap-fitting arrangement.
- The use of such a mounting arrangement has been found to simplify the installation of the fenestration unit for an operator.
- The second region may comprise a third gasket extending at least partially along the elongate length of the body such that the second region is configured for sealingly engaging the internal profile.
- This arrangement enables a frame member to sealingly engage an external profile without requiring any additional material/processes (e.g. an additional silicone seal), which simplifies the installation of the fenestration unit for an operator.
- The provision of this seal on the frame member helps to reduce drafts flowing through the window frame member and also help to reduce the ingress of water.
- The ancillary member may be positioned between two window frames, and the second region may comprise a third gasket extending at least partially along the elongate length of the body such that the second region is configured for sealingly engaging first and/or second window frames, in use.
- This arrangement works to improve the seal formed between the ancillary member and a window frame, further inhibiting the ingress of air and/or moisture through the fenestration unit.
- The elongate body may be formed from a rigid material, and wherein the third gasket is formed from a deformable, e.g. resilient, material.
- Providing a body formed from a rigid material, e.g. a plastics material such as uPVC, increases the stability of the fenestration unit.
- Providing the third gasket to be formed from a deformable resilient material, e.g. a thermoplastic elastomer (TPE) like EPDM, has been found to improve the quality of the seal formed against the window frame.
- The third gasket may be integrally formed with the elongate body.
- Integrally forming the sealing member with the body, e.g. via a co-extrusion process, enables the ancillary member to be provided a single unitary body.
- The second side surface comprises a fourth gasket extending at least partially along the elongate length of the body such that the second side surface is configured for sealingly engaging a second window frame.
- This arrangement enables the ancillary member to form seals against adjacent window frames without requiring any additional material/processes (e.g. an additional silicone seal), which simplifies the installation of the fenestration unit for an installer.
- The provision of this seal on the frame member helps to reduce draughts flowing through the fenestration unit and also helps to reduce the ingress of water.
- The elongate body may be formed from a rigid material, and the fourth gasket may be formed from a deformable, e.g. resilient, material.
- Providing a body formed from a rigid material, e.g. a plastics material such as uPVC, increases the stability of the fenestration unit.
- Providing the fourth gasket to be formed from a deformable resilient material, e.g. a thermoplastic elastomer (TPE) like EPDM, has been found to improve the quality of the seal formed against the window frame.
- The fourth gasket may be integrally formed with the elongate body.
- Integrally forming the sealing member with the body, e.g. via a co-extrusion process, enables the coupling member to be provided a single unitary body.
- The second side surface may comprise a keying surface for adhering the ancillary member to an opening of a building.
- The provision of this keying surface improves adhesion of the window frame member to the mortar of the building opening during assembly.
- The keying surface may be provided in the form of a recess extending at least partially along the elongate length of the body.
- The body may comprise a cavity extending at least partially along the elongate length thereof.
- Provision of a cavity extending along the length of the ancillary member body has been found to improve the insulation properties of the ancillary member.
- A reinforcing member may extend through the cavity.
- Inclusion of a reinforcing member, e.g. a reinforcing post, beam or pole, extending through the body further increases the strength of the assembled frame assembly.
- A second aspect provides a fenestration unit for an opening of a building, as defined in
claim 14. - Embodiments will now be described with reference to the accompanying drawings, in which:
-
Figure 1 is a schematic front view of a fenestration unit; -
Figure 2 is a cross-sectional side view of part of the fenestration unit ofFigure 1 on the plane 2-2; -
Figure 3 is a simplified cross-sectional plan view of a fenestration unit; and -
Figure 4 is an enlarged cross-sectional plan view of the part 4 encircled in the fenestration unit ofFigure 3 . -
Figures 3 and4 are not according to the invention and are present for illustration purposes only. -
Figure 1 shows a fenestration unit generally indicated at 10. The fenestration unit 10 is intended to be mounted within an opening of a wall structure of a building (not shown). The fenestration unit 10 includeswindow frame assembly 12 made up of a series offrame members 14 connected at the edges thereof, e.g. via mitre joints. In the arrangement shown, thewindow frame assembly 12 is substantially square, but in other arrangement thewindow frame assembly 12 could be rectangular or any other suitable shape. Anancillary member 20 in the form of a cill is positioned underneath thewindow frame assembly 12. - The fenestration unit 10 of this embodiment is suitable for a window, door or other type of fenestration, such as a vent. The window frame assembly includes a
glazing unit 16. Theglazing unit 16 includes two panes ofglass 18 spaced apart and lying parallel to each other. However, it will be appreciated that theglazing unit 16 may have one or more than two panes ofglass 18. Alternatively, theglazing unit 16 could be replaced with a panel of wood, aluminium or other suitable material. It shall be appreciated that although theglazing unit 16 in this embodiment is a double glazing unit, alternative glazing units, for example opaque panels, for example for doors, may be used. - Fenestration units 10 of this type are typically used in external walls of domestic and commercial buildings. It is therefore necessary that the fenestration unit 10 meets requirements for thermal insulation, sealing against water ingress, draughts etc.
- Referring now to
Figure 2 , theframe member 14 and the ancillary member in the form of thecill 20 of the fenestration unit 10 are illustrated in cross-section. In the arrangement shown, theframe member 14 is intended to be a bottom orlower frame member 14. - The
ancillary member 20 defines anelongate body 22 configured to extend along the length of theframe member 14. Theelongate body 22 defines a cross-sectional profile having a first, externally facing,region 24 and a second, internally facing,region 26. The profile of the body 15 defines first and second side surfaces 28, 30 extending between the first andsecond regions - The
body 22 includes acentral cavity 32. It will be appreciated that thecavity 32 may extend along the entirety of the length of thebody 22, or may extend partially therealong. The cavity provides voids in the body 22 (three in this embodiment) that are delineated by vertical walls of the body. The voids work to improve the insulation properties of theancillary member 20. Although not illustrated, in some arrangements theancillary member 20 may include a reinforcing member (not shown) within the cavity in order to improve the structural strength thereof. - The
first side surface 28 of thebody 22 includes afirst gasket 34 extending along the elongate length of thebody 22. It will be appreciated that thefirst gasket 34 may extend along the entirety of the length of thefirst side surface 28, or may extend partially therealong. The provision of thefirst gasket 34 along thefirst side surface 28 enables thefirst side surface 28, and so theancillary member 20, to sealingly engage thewindow frame member 14 without the use of an additional component (e.g. a line of silicone sealant covering the join between theancillary member 20 and the window frame member 14). - In the arrangement shown, the
first gasket 34 is integrally formed with theelongate body 22 such that thebody 22 and thefirst gasket 34 are provided as a unitary body. Theancillary member 20 is formed from an insulating material so as to provide a thermal break within the ancillary member 20 (i.e. within the cill). Put another way, theelongate body 22 and thefirst gasket 34 are formed from an insulating material to provide a thermal break within the fenestration unit 10. - The
elongate body 22 is formed from a rigid material, e.g. a rigid plastics material such as unplasticised polyvinyl chloride (uPVC), so as to be able to provide strength to thecill 20. Thefirst gasket 34 is formed from a deformable material, e.g. an elastomeric material such as a thermoplastic elastomer (TPE) like EPDM so as to provide an improved seal surface against thewindow frame member 14. In order to integrally form arigid body 22 and a resiliently deformablefirst gasket 34, thebody 22 and thefirst gasket 34 are formed through a co-extrusion process. It will be appreciated that any suitable process for integrally forming thefirst gasket 34 and thebody 22 may be used. - In the illustrated arrangement, the
first gasket 34 is provided in the form of a bubble seal. Thebubble seal 34 bulges outwardly from thefirst side surface 28 along an arcuate path. In use, an external surface of thewindow frame member 14 abuts against the curved surface of thebubble seal 34 and deforms saidbubble seal 34 so as to form a seal therebetween. It will be appreciated that alternative sealing arrangements, such as one or more lip seals, may be utilised. Thebody 22 includes a first mountingarrangement 36 for releasably mounting anexternal profile 38 onto thebody 22. The first mountingarrangement 36 is provided on thefirst region 24 of thebody 22. Having anexternal profile 38 that is releasably connectable to thebody 22 allows thebody 22 andexternal profile 38 to be made from different materials. This arrangement enables thebody 22 to be made from an insulating material to provide a thermal break, whilst allowing the external profile to be made from a metallic material, e.g. aluminium, to improve its appearance and to provide greater strength and durability. Theexternal profile 38 substantially covers (e.g. at least partially covers) thefirst region 24 of thebody 22 to improve the appearance of theancillary member 20. - As discussed above, in the arrangement shown the
frame member 14 is intended to be positioned at the bottom of awindow frame assembly 12. According to the invention theexternal profile 38 is a cill cover. - The first mounting
arrangement 36 connects to theexternal profile 38 via a snap-fitting arrangement. The snap-fitting arrangement is provided in the form of a pair ofrecesses 40 on opposing sides of thefirst region 24 of thebody 22. Theexternal profile 38 has correspondingprojections 42 on opposing internal surfaces thereof. Theprojections 42 are configured and arranged to inter-engage with therecesses 40 to attach theexternal profile 38 to thebody 22. - The
body 22 includes asecond gasket 44 for sealing against theexternal profile 38. Thesecond gasket 44 is provided on thefirst region 24 of thebody 22 extending along the elongate length of thebody 22. It will be appreciated that thesecond gasket 44 may extend along the entirety of the length of thefirst region 24, or may extend partially therealong. The provision of thesecond gasket 44 along thefirst region 24 enables thefirst region 24 of thebody 22 to sealingly engage theexternal profile 38 without the use of an additional sealing component. - In the arrangement shown, the
second gasket 44 is integrally formed with theelongate body 22. Put another way, thebody 22 and thesecond gasket 44 are provided as a unitary body. - The
second gasket 44 is formed from a deformable material, e.g. an elastomeric material such as a thermoplastic elastomer (TPE) like EPDM so as to provide an improved seal surface against thewindow frame member 14. In order to integrally form arigid body 22 and a resiliently deformablesecond gasket 44, thebody 22 and thesecond gasket 44 are formed through a co-extrusion process. It will be appreciated that any suitable process for integrally forming thesecond gasket 44 and thebody 22 may be used. - In the illustrated arrangement, the
first region 24 of thebody 22 is provided in the form of a pair of opposingarms 46. The distal ends 48 of thearms 46 are spaced apart such thatarms 46 are cantilevered on thebody 22. Therecesses 40 are provided on the cantileveredarms 46, which enables them to easily flex together when theprojections 42 are push fitted thereon. - The
second gasket 44 extends between the distal ends 48 of thearms 46 such that thearms 46 are flexibly connected together. Thesecond gasket 44 is provided in the form of a bubble seal. The bubble theseal 44 extends between two opposing and spaced apart ends of thefirst region 24 of thebody 22. - In alternative arrangements, the
first region 24 may not be provided in the form of cantilevered arms, and thebody 22 may include an alternative arrangement to enable therecesses 40 to flex inwardly upon push fitting of theprojections 42. - The
body 22 includes a second mountingarrangement 50 for releasably mounting aninternal profile 52 thereon. The second mountingarrangement 50 is provided on thesecond region 26. Having aninternal profile 50 that is releasably connectable to thebody 22 allows thebody 22 andinternal profile 52 to be made from different materials. This arrangement enables thebody 22 to be made from an insulating material to provide a thermal break, whilst allowing the internal profile to be made from a metallic material, e.g. aluminium, to improve its appearance and to provide greater strength and durability. Theinternal profile 52 substantially covers (e.g. at least partially covers) thesecond region 26 of thebody 22 to improve the appearance of theancillary member 20. - Providing both internal and
external profiles body 22 enables differently coloured or shaped profiles of the external andinternal profiles - In the arrangement shown, the second mounting
arrangement 50 connects to theinternal profile 52 via a snap-fitting arrangement. The snap-fitting arrangement is provided in the form of a pair ofrecesses 54 on opposing sides of thesecond region 26 of thebody 22. Theinternal profile 52 has correspondingprojections 56 on opposing internal surfaces thereof. Theprojections 56 are configured and arranged to inter-engage with therecesses 54 to attach theinternal profile 52 to thebody 22. It will be appreciated that any suitable releasable connection arrangement between theinternal profile 52 and thebody 22 may be used in alternative arrangements. - The
body 22 includes athird gasket 62 for sealing against theinternal profile 52. Thethird gasket 62 is provided on thesecond region 26 of thebody 22 extending along the elongate length of thebody 22. It will be appreciated that thethird gasket 62 may extend along the entirety of the length of thesecond region 26, or may extend partially therealong. The provision of thethird gasket 62 along thesecond region 26 enables thesecond region 26 of thebody 22 to sealingly engage theinternal profile 52 without the use of an additional sealing component. - In the arrangement shown, the
third gasket 62 is integrally formed with theelongate body 22. Put another way, thebody 22 and thethird gasket 62 are provided as a unitary body. - The
third gasket 62 is formed from a deformable material, e.g. an elastomeric material such as a thermoplastic elastomer (TPE) like EPDM so as to provide an improved seal surface against thewindow frame member 14. In order to integrally form arigid body 22 and a resiliently deformablethird gasket 62, thebody 22 and thethird gasket 62 are formed through a co-extrusion process. It will be appreciated that any suitable process for integrally forming thethird gasket 62 and thebody 22 may be used. - In the illustrated arrangement, the
second region 26 of thebody 22 is provided in the form of a pair of opposingarms 58. The distal ends 60 of thearms 58 are spaced apart such thatarms 58 are cantilevered on thebody 22. Therecesses 54 are provided on the cantileveredarms 58, which enables them to easily flex together when theprojections 56 are push fitted thereon. - The
third gasket 62 extends between the distal ends 60 of thearms 58 such that thearms 58 are flexibly connected together. Thethird gasket 62 is provided in the form of a bubble seal. The bubble theseal 62 extends between two opposing and spaced apart ends of thesecond region 26 of thebody 22. - In alternative arrangements, the
second region 26 may not be provided in the form of cantilevered arms, and thebody 22 may include an alternative arrangement to enable therecesses 54 to flex inwardly upon push fitting of theprojections 56. - It will be appreciated that as well as acting as a seal, the second and
third gaskets internal profiles ancillary member 20 during shipping and installation. - When the internal and
external profiles body 22, they form a substantially flat upper surface. This substantially flat is provided so as to be able to mount thewindow frame assembly 12 onto thecill 20. - The
ancillary member 20 includes an alignment arrangement for aligning awindow frame member 14 thereon. In this arrangement, the ancillary member orcill 20 includes anupstand 64 to abut against a portion of thewindow frame assembly 12 for aligning thewindow frame 14 with thecill 20 during installation. - The
second side surface 30 of thebody 22 includes a keyingsurface 66 for improving adhesion of theancillary member 20 to an opening of a building (e.g. to the mortar of the opening). In the arrangement shown, the keyingsurface 66 is provided in the form of a recess along thesecond side 30 of thebody 22. It will be appreciated that the keyingsurface 66 may extend along the entirety of the length of thesecond side 30, or may extend partially therealong. - Referring now to
Figure 3 , a fenestration unit is illustrated and generally indicated at 110. Thefenestration unit 110 is intended to be mounted within an opening of a wall structure of a building (not shown). Thefenestration unit 110 includes awindow frame assembly 112 for positioning in an opening of a building. - The
window frame assembly 112 is formed from a series ofwindow frame members 114 arranged so as to define a series of window frame openings (e.g. square or rectangular openings) within thefenestration unit 110 that forms a bay window. Thewindow frame assembly 112 includes aglazing unit 116 positioned within each opening. Theglazing unit 116 includes two panes of glass spaced apart and lying parallel to each other. However, it will be appreciated that theglazing unit 116 may have one or more than two panes of glass. Alternatively, theglazing unit 116 could be replaced with a panel of wood, aluminium or other suitable material. -
Fenestration units 110 of this type are typically used in external walls of domestic and commercial buildings. It is therefore necessary that the fenestration unit meets requirements for thermal insulation, sealing against water ingress, draughts etc. - Adjacent openings within the
fenestration unit 110 are arranged at an angle relative to each other (i.e. the adjacent openings are not co-planar), and are connected by anancillary member 120. In the arrangement shown, theancillary member 120 is provided as a corner post (i.e. a substantially upright member). Thefenestration unit 110 of this embodiment is suitable for a window, door or other type of fenestration, such as a vent. - Referring now to
Figure 4 , the ancillary member 120 (i.e. a corner post) is illustrated interposed betweenframe members 114 of adjacent window frame openings. - The
ancillary member 120 defines anelongate body 122 configured to extend along the length of theframe member 114. Theelongate body 122 defines a cross-sectional profile having a first, externally facing,region 124 and a second, internally facing,region 126. The profile of thebody 122 defines first and second side surfaces 128, 130 extending between the first andsecond regions - The
body 122 includes acentral cavity 132. It will be appreciated that thecavity 132 may extend along the entirety of the length of thebody 122, or may extend partially therealong. Thecavity 132 provides an empty region in thebody 122, which works to improve the insulation properties of thecorner post 120. Thecorner post 120 also includes a reinforcingmember 168 within thecavity 132. The reinforcing member is provided in the form of a metallic tube, but it will be appreciated that any suitable shaped reinforcing member may be used. 21 in order to improve the structural strength of theancillary member 120 and to transmit load from masonry above thefenestration unit 110 to that below. It will be appreciated that in some arrangements, the reinforcingmember 168 may be omitted. - The
first side surface 128 of thebody 122 includes afirst gasket 134 extending along the elongate length of thebody 122. It will be appreciated that thefirst gasket 134 may extend along the entirety of the length of thefirst side 128, or may extend partially therealong. The provision of thefirst gasket 134 along thefirst side 128 enables thefirst side surface 128, and so theancillary member 120, to sealingly engage thewindow frame 114 without the use of an additional component (e.g. a line of silicone sealant covering the join between thecorner post 120 and the window frame member 114). - In the arrangement shown, the
first gasket 134 is integrally formed with theelongate body 122 such that thebody 122 and thefirst gasket 134 are provided as a unitary body. Thebody 122 is formed from an insulating material so as to provide a thermal break within the ancillary member 20 (i.e. within the cill). Put another way, theelongate body 122 and thefirst gasket 134 are formed from an insulating material to provide a thermal break within thefenestration unit 110. - The
elongate body 122 is formed from a rigid material, e.g. a rigid plastics material such as unplasticised polyvinyl chloride (uPVC), so as to be able to provide strength to thecorner post 120. Thefirst gasket 134 is formed from a deformable material, e.g. an elastomeric material such as a thermoplastic elastomer (TPE) like EPDM so as to provide an improved seal surface against thewindow frame member 114. In order to integrally form arigid body 122 and a resiliently deformablefirst gasket 134, thebody 122 and thefirst gasket 134 are formed through a co-extrusion process. It will be appreciated that any suitable process for integrally forming thefirst gasket 134 and thebody 122 may be used. - In the illustrated arrangement, the
first gasket 134 is provided in the form of a bubble seal. Thebubble seal 134 bulges outwardly from thefirst side surface 128 along an arcuate path. In use, external surface of thewindow frame member 114 abuts against the curved surface of thebubble seal 134 and deforms saidbubble seal 134 so as to form a seal therebetween. It will be appreciated that alternative sealing arrangements, such as one or more lip seals, may be utilised. - The
second side surface 130 of thebody 122 includes asecond gasket 172 extending along the elongate length of thebody 122. It will be appreciated that thesecond gasket 172 may extend along the entirety of the length of thesecond side surface 130, or may extend partially therealong. The provision of thesecond gasket 172 along thesecond side surface 130 enables thesecond side surface 130, and so theancillary member 120, to sealingly engage thesecond window frame 114 without the use of an additional component (e.g. a line of silicone sealant covering the join between the ancillary member orcorner post 120 and the window frame member 114). - In the arrangement shown, the
second gasket 172 is integrally formed with theelongate body 122. Put another way, thebody 122 and thesecond gasket 172 are provided as a unitary body. - The
second gasket 172 is formed from a deformable material, e.g. an elastomeric material such as a thermoplastic elastomer (TPE) like EPDM so as to provide an improved seal surface against thewindow frame member 114. In order to integrally form arigid body 122 and a resiliently deformablefourth gasket 172, thebody 122 and thefourth gasket 172 are formed through a co-extrusion process. It will be appreciated that any suitable process for integrally forming thefourth gasket 172 and thebody 122 may be used. - The
first region 124 is provided with a first mountingarrangement 136 for releasably mounting anexternal profile 138 thereon. Having anexternal profile 138 that is releasably connectable to thebody 122 allows thebody 122 andexternal profile 138 to be made from different materials. This arrangement enables thebody 122 to be made from an insulating material to provide a thermal break, whilst allowing theexternal profile 138 to be made from a metallic material, e.g. aluminium, to improve the appearance of thefenestration unit 110 and to match the appearance of the adjoiningframe members 114. Theexternal profile 138 substantially covers (e.g. at least partially covers) thefirst region 124 of thebody 122 to improve the appearance of thefenestration unit 110. Theexternal profile 138 may also be arranged so as to cover the outer interface between thecorner post 120 and the first and/orsecond frame member 114. - In the arrangement shown, the first mounting
arrangement 136 connects to theexternal profile 138 via a snap-fitting arrangement. The snap-fitting arrangement is provided in the form of a pair ofrecesses 140 on opposing sides of achannel 170 on thefirst region 124 of thebody 122. Theexternal profile 138 has correspondingprojections 142 on opposing internal surfaces thereof, where the projections are configured and arranged to inter-engage with therecesses 140 to attach theexternal profile 138 to thebody 122. It will be appreciated that any suitable releasable connection arrangement between theexternal profile 138 and thebody 122 may be used in alternative arrangements. - As is illustrated, the ancillary member or
corner post 120 is positioned betweenframe member 114 arranged at an angle to each other. The body includes athird gasket 162 for sealing against thewindow frame members 114. Thethird gasket 162 is provided on thesecond region 126 of thebody 122 and extends along the elongate length of thebody 122. It will be appreciated that thethird gasket 162 may extend along the entirety of the length of thesecond region 126, or may extend partially therealong. The provision of thethird gasket 162 along thesecond region 126 enables thesecond region 126 of thebody 122 to sealingly engage the first and secondwindow frame members 114. The combination of the first, second andthird gaskets frame members 114 and thecorner post 120, which further helps to inhibit the ingress of air and/or moisture between theframe member 114 and thecorner post 120. - In the arrangement shown, the
third gasket 162 is integrally formed with theelongate body 122. Put another way, thebody 122 and thethird gasket 162 are provided as a unitary body. - The
third gasket 162 is formed from a deformable material, e.g. an elastomeric material such as a thermoplastic elastomer (TPE) like EPDM so as to provide an improved seal surface against thewindow frame member 114. In order to integrally form arigid body 122 and a resiliently deformablethird gasket 162, thebody 122 and thethird gasket 162 are formed through a co-extrusion process. It will be appreciated that any suitable process for integrally forming thethird gasket 162 and thebody 122 may be used. - The
ancillary member 120 includes a first alignment arrangement for aligning afirst frame member 114 thereon. In this arrangement, the ancillary member orcorner post 120 includes aprojection 174 extending from thefirst side surface 128. Thisprojection 174 provides a surface for a corresponding surface of aframe member 114 to abut against during installation to aid alignment. The first alignment arrangement includes a recessedportion 176 on thefirst side surface 128. The recessedportion 176 is arranged so as to abut against a correspondingprojection 178 of theframe member 114 during installation to aid alignment therebetween. - The
ancillary member 120 includes a second alignment arrangement for aligning asecond frame member 114 thereon. In this arrangement, the ancillary member orcorner post 120 includes aprojection 174 extending from thefirst side surface 128. Thisprojection 180 provides a surface for a corresponding surface of aframe member 114 to abut against during installation to aid alignment. The first alignment arrangement includes a recessedportion 182 on thefirst side surface 128. The recessedportion 182 is arranged so as to abut against a correspondingprojection 184 of theframe member 114 during installation to aid alignment therebetween. - Although the invention has been described above with reference to one or more preferred embodiments, it will be appreciated that various changes or modifications may be made without departing from the scope of the invention as defined in the appended claims.
Claims (14)
- An ancillary member (20) for a fenestration unit (10), the ancillary member (20) comprising:a body (22) defining an elongate length extending longitudinally between first and second ends thereof, the body (22) defining a cross-sectional profile comprising a first region (24) intended to be externally facing, in use, a second region (26) intended to be internally facing, in use, and first and second side surfaces (28, 30) extending between the first and second regions (24, 26),wherein the first side surface (28) comprises a first gasket (34) extending at least partially along the elongate length of the body (22) such that the first side surface (28) is configured for sealingly engaging a first window frame (14);characterised in that: the ancillary member (20) is a cill and comprises a cill cover, wherein the first region (24) comprises a first mounting arrangement (36) for releasably mounting an external profile (38) of the cill cover thereon, and wherein the first mounting arrangement (36) is configured for mounting the external profile (38) to the body (22) via a snap-fitting arrangement; andthe first region (24) of the body (22) comprises a second gasket (44) extending at least partially along the elongate length of the body (22) such that the first region (24) is configured for sealingly engaging the external profile (38) of the cill cover.
- An ancillary member (20) according to claim 1, wherein the first gasket (34) is integrally formed with the body (22).
- An ancillary member (20) according to claim 1 or claim 2, wherein the body (22) is formed from a substantially rigid material, and wherein the first gasket (34) is formed from a deformable, e.g. resilient, material.
- An ancillary member (20) according to any preceding claim, wherein the body (22) of the ancillary member is formed from an insulating material.
- An ancillary member according to any preceding claim, wherein the body (22) is formed from a rigid material, and wherein the second gasket (44) is formed from a deformable, e.g. resilient, material.
- An ancillary member (20) according to any preceding claim, wherein the second gasket (44) is integrally formed with the body (22).
- An ancillary member (20) according to any preceding claim, wherein the second region (26) comprises a second mounting arrangement (50) for releasably mounting an internal profile (52) thereon.
- An ancillary member (20) according to claim 7, wherein the second mounting arrangement (50) is configured for mounting the internal profile (52) to the body (22) via a snap-fitting arrangement.
- An ancillary member (20) according to claim 7 or claim 8, wherein the second region (26) comprises a third gasket (62) extending at least partially along the elongate length of the body (22) such that the second region (26) is configured for sealingly engaging the internal profile (52).
- An ancillary member (20) according to claim 9, wherein the body (22) is formed from a rigid material, and wherein the third gasket (62) is formed from a deformable, e.g. resilient, material, optionally wherein the third gasket (62) is integrally formed with the body (22).
- An ancillary member (20) according to any preceding claim, wherein the second side surface (30) comprises a keying surface (66) for adhering the ancillary member (20) to an opening of a building.
- An ancillary member (20) according to claim 11, wherein the keying surface (66) is provided in the form of a recess extending at least partially along the elongate length of the body (22).
- An ancillary member (20) according to any preceding claim, wherein the body (22) comprises a cavity (32) extending at least partially along the elongate length thereof, optionally wherein a reinforcing member extends through the cavity (32).
- A fenestration unit (10) for an opening of a building, the fenestration unit (10) comprising:a window frame assembly (12) formed from a series of frame members (14) connected at edges thereof, defining an opening for receiving a glazing unit (16) therein; andan ancillary member (20) according to any preceding claim positioned underneath the window frame assembly (20).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2001090.6A GB2591293B (en) | 2020-01-27 | 2020-01-27 | An ancillary member |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3854977A1 EP3854977A1 (en) | 2021-07-28 |
EP3854977C0 EP3854977C0 (en) | 2024-01-10 |
EP3854977B1 true EP3854977B1 (en) | 2024-01-10 |
Family
ID=69725979
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21153854.1A Active EP3854977B1 (en) | 2020-01-27 | 2021-01-27 | An ancillary member |
Country Status (2)
Country | Link |
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EP (1) | EP3854977B1 (en) |
GB (1) | GB2591293B (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5010690A (en) * | 1990-04-14 | 1991-04-30 | Imperial Products, Inc. | Adjustable threshold assembly with water-tight seals |
DE102006007742A1 (en) * | 2006-01-13 | 2007-07-19 | Inge Frey | Ground sill for door element for sealing two spaces in ground area, particularly between outer and inner area of building, has tie body, which is attached on lower body introduced in building |
US20130047518A1 (en) * | 2011-08-23 | 2013-02-28 | Endura Products, Inc. | Door Entryway System |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04323486A (en) * | 1991-04-24 | 1992-11-12 | Aisin Seiki Co Ltd | Heat insulated bay-window |
DE19501088A1 (en) * | 1995-01-16 | 1996-07-18 | Schueco Int Kg | Corner posts for wall cladding made of cladding elements provided with a plastic frame |
US10260274B1 (en) * | 2017-09-25 | 2019-04-16 | Associated Materials, Llc | Mulling system for a window assembly |
-
2020
- 2020-01-27 GB GB2001090.6A patent/GB2591293B/en active Active
-
2021
- 2021-01-27 EP EP21153854.1A patent/EP3854977B1/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5010690A (en) * | 1990-04-14 | 1991-04-30 | Imperial Products, Inc. | Adjustable threshold assembly with water-tight seals |
DE102006007742A1 (en) * | 2006-01-13 | 2007-07-19 | Inge Frey | Ground sill for door element for sealing two spaces in ground area, particularly between outer and inner area of building, has tie body, which is attached on lower body introduced in building |
US20130047518A1 (en) * | 2011-08-23 | 2013-02-28 | Endura Products, Inc. | Door Entryway System |
Also Published As
Publication number | Publication date |
---|---|
GB2591293B (en) | 2023-08-30 |
EP3854977C0 (en) | 2024-01-10 |
GB202001090D0 (en) | 2020-03-11 |
GB2591293A (en) | 2021-07-28 |
EP3854977A1 (en) | 2021-07-28 |
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