EP4440830A1 - Vitrage feuilleté à élément de blocage en gradin - Google Patents
Vitrage feuilleté à élément de blocage en gradinInfo
- Publication number
- EP4440830A1 EP4440830A1 EP22834682.1A EP22834682A EP4440830A1 EP 4440830 A1 EP4440830 A1 EP 4440830A1 EP 22834682 A EP22834682 A EP 22834682A EP 4440830 A1 EP4440830 A1 EP 4440830A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- glass
- sheet
- laminated glazing
- adhesive layer
- intermediate adhesive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
- B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
- B32B17/10045—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets with at least one intermediate layer consisting of a glass sheet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
- B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10165—Functional features of the laminated safety glass or glazing
- B32B17/10293—Edge features, e.g. inserts or holes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10165—Functional features of the laminated safety glass or glazing
- B32B17/10293—Edge features, e.g. inserts or holes
- B32B17/10302—Edge sealing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10743—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing acrylate (co)polymers or salts thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/1077—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing polyurethane
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10788—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing ethylene vinylacetate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/06—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions for securing layers together; for attaching the product to another member, e.g. to a support, or to another product, e.g. groove/tongue, interlocking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/263—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer having non-uniform thickness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/14—Windows; Doors; Hatch covers or access panels; Surrounding frame structures; Canopies; Windscreens accessories therefor, e.g. pressure sensors, water deflectors, hinges, seals, handles, latches, windscreen wipers
- B64C1/1476—Canopies; Windscreens or similar transparent elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/14—Windows; Doors; Hatch covers or access panels; Surrounding frame structures; Canopies; Windscreens accessories therefor, e.g. pressure sensors, water deflectors, hinges, seals, handles, latches, windscreen wipers
- B64C1/1476—Canopies; Windscreens or similar transparent elements
- B64C1/1492—Structure and mounting of the transparent elements in the window or windscreen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/44—Number of layers variable across the laminate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/732—Dimensional properties
- B32B2307/737—Dimensions, e.g. volume or area
- B32B2307/7375—Linear, e.g. length, distance or width
- B32B2307/7376—Thickness
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
- B32B2605/10—Trains
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B2605/00—Vehicles
- B32B2605/12—Ships
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- B32B2605/00—Vehicles
- B32B2605/18—Aircraft
Definitions
- This application relates to pinched glazing, subject to pressure differentials between the two faces of the glazing, such as pressurized air vehicle glazing.
- This gasket performs several functions, including sealing with the assembly structure, protection of the sheets (or folds) on the edge and protection against humidity (prevention of delamination).
- the gasket assumes the entire function of physical contact with the mounting structure and with the window press; the seal thus constitutes an integral separation between the laminated glazing on the one hand, the mounting structure and the glass press on the other.
- structural element of the glazing is meant a rigid sheet constituting the laminated glazing capable of constituting on its own a monolithic glazing, of ensuring its mechanical strength, in particular, and having an elastic modulus at least equal to 1500 MPa per example.
- These are sheets of mineral glass or transparent polymer material with a minimum thickness varying of course according to their material.
- An intermediate adhesive layer forming part of the composition of a laminated glazing is, for example, never capable of exhibiting a minimum elastic modulus indicated above, a sufficient mechanical strength, and cannot constitute a structural sheet or ply.
- the object of the invention was to create a two-way connection (in the plane of the glazing and perpendicular to it), independent of the structural folds (glaziers, etc.), between the mounting structure and the glazing (laminated ).
- the glazing is thus held in place in its mounting environment, even in the event of the breakage of one or more structural folds, and even of all of them.
- a laminated glazing comprising at least a first sheet of glass and a second sheet of glass bonded to each other by means of a first intermediate adhesive layer, the first sheet of glass being intended to form the surface of the laminated glazing in contact with the outside atmosphere, in which the edge of the first sheet of glass is recessed with respect to that of the second, a peripheral part of the free surface of the first sheet of glass, the edge of the latter, from 0 to 100% of the edge of the first intermediate adhesive layer and a peripheral part of the surface of the second glass sheet or of the first intermediate adhesive layer , projecting with respect to the first sheet of glass, describing a continuous stepped contour which is covered by a stepped element with the interposition of glue, the laminated glazing being fixed to the mounting structure by means of a press- crystal which exerts a support on said overhang relative to the first sheet of glass, support exerted via the element stepped, characterized in that the stepped element extends as far as the contact surface between the window press
- the shape of the stepped element in particular its parts in contact with the peripheral part of the free surface of the first sheet of glass and with the overhang of the laminated glazing with respect to this first sheet of glass, are suitable blocking the laminated glazing in the direction perpendicular to its principal plane.
- the parts of the stepped element which are in contact with the edge of the first sheet of glass and with 0 to 100% of the edge of the first intermediate adhesive layer, and the extension of the stepped element between the and the structure, are able to block the laminated glazing in the direction of its main plane; a connection between the stepped element on the one hand, the ice-presser and the mounting structure on the other hand, is achieved by said extension of the stepped element, as will be seen in more detail below.
- the first sheet of glass is a thin sheet of non-structural protection, that is to say not providing the mechanical resistance required for monolithic glazing for example, and its main face internal to the laminated structure carries a network of wires or a thin layer such as indium oxide doped with tin (Indium Tin Oxide - ITO -), silver, gold or equivalent, anti-icing / de-icing electrical conductors .
- the second sheet of glass is structural, often laminated on the side opposite the first sheet of glass to one or more other structural sheets, so as to constitute together the structural block of the laminated glazing.
- the stepped element when its profile is that of the letter z, constitutes a sealing barrier, its function is to prevent any humidity from penetrating into the laminated glazing. It is metallic (aluminum, stainless steel, etc.), in polymer or composite material. Because the stepped element extends between the window presser and the structure, it is possible thanks to the invention to eliminate the injected seal which will be described in detail below, between the window presser (rapplique) and the stepped element ("Zed >>), because the latter guarantees complete sealing of the junction of the laminated glazing and the assembly structure vis-à-vis the outside atmosphere. This local removal of the injected seal (elastomer, such as silicone) provides a gain in thickness and therefore in mass of the assembly, and a more precise positioning of the glazing (removal of deformable material, in particular by compression -crushing-).
- the invention also provides simplified electrical continuity to the aircraft ground for an anti-static layer, resolution (elimination) of noisy electrostatic discharges called in English annoying "clicking noise". in a known way the pilots, co-pilots...
- the cooperation of a form of the stepped element with a complementary form of the mounting structure and a complementary form of the window press includes, for example, an interlocking and/or a stop.
- said blocking of the stepped element and of the laminated glazing in the plane thereof is additionally achieved by bolting the window press to the mounting structure through the stepped element having a through hole for this purpose.
- the stepped element covers a peripheral part of the first intermediate adhesive layer overflowing from the first sheet of glass, and of thickness equal to part or all of the thickness of the first intermediate adhesive layer.
- the overhang of the first intermediate adhesive layer with respect to the first sheet of glass can therefore concern a fraction or the entire thickness of this layer.
- the laminated glazing comprises at least a third sheet of glass connected to the second sheet of glass by a second intermediate adhesive layer; as will be seen next, the third sheet of glass can be a structural sheet.
- the stepped element extends within the first and/or the second intermediate adhesive layer, so as to be integral with it. This characteristic achieves an anchoring of the stepped element in the laminated structure, and participates in the realization of a blocking, a stop of the laminated glazing in the direction of its main plane, by cooperating with the connection described above. between the stepped element on the one hand, and the assembly of the assembly structure and the ice-presser on the other hand, by complementary shapes and possibly bolting.
- the peripheral part of the laminated glazing located between the face of the stepped element opposite the ice press and the main face of the laminated glazing opposite to that formed by the first sheet of glass is covered by a gasket.
- a gasket airtightness and watertightness, and protection against solar radiation and fluids.
- It is a peripheral seal made of elastomeric polymer material, in particular injectable or implemented by extrusion, such as silicone, polyurethane (PU), polysulphide elastomer.
- the joint contact of the gasket and the step element is completely airtight and watertight.
- the stepped element is covered by a drop which provides the laminated glazing with aerodynamic continuity between the glazing and the mounting structure such as an aircraft structure and good inertia for treatment fluids such as aeronautical fluids, cleaning products , degreaser, glycol for ground de-icing and the like.
- the first sheet of glass is made of mineral glass with a thickness of between 0.5 and 5, preferably between 2 and 4 mm, or of a polymer material such as poly(methyl methacrylate) (PMMA) d thickness between 0.5 and 5 mm.
- PMMA poly(methyl methacrylate)
- a mineral glass designates here for example a soda-lime, aluminosilicate, borosilicate glass, optionally hardened, thermally toughened, or chemically reinforced.
- Other transparent polymer materials than PMMA can be used, in particular polycarbonate (PC), poly(ethylene terephthalate) (PET) or polyurethane (PU).
- the first sheet of glass is made of a polymer material such as PC
- its free surface is advantageously provided with an anti-scratch coating or varnish of the polysiloxane type, hydrophilic, hydrophobic, etc.
- the second sheet of glass, and if necessary the third sheet of glass, or even the following ones are made of mineral glass with a thickness of between 4 and 10 mm, or of a polymer material such as poly(methyl methacrylate ) (PMMA) with a thickness of between 5 and 30, preferably at most 20 mm.
- PMMA poly(methyl methacrylate )
- the intermediate adhesive layers are made of thermoplastic polyurethane (TPU), polyvinyl butyral (PVB), ethylene-vinyl acetate copolymer (EVA), ionomer resin, casting resin, the thickness of the first intermediate adhesive layer is between 3 and 10, preferably 4 and 8 mm, and the thickness of the second intermediate adhesive layer and, where appropriate, of the subsequent layers is between 0.5 and 4, preferably at most equal to 2 mm.
- TPU thermoplastic polyurethane
- PVB polyvinyl butyral
- EVA ethylene-vinyl acetate copolymer
- ionomer resin casting resin
- the thickness of the first intermediate adhesive layer is between 3 and 10, preferably 4 and 8 mm
- the thickness of the second intermediate adhesive layer and, where appropriate, of the subsequent layers is between 0.5 and 4, preferably at most equal to 2 mm.
- Another object of the invention consists in the application of a laminated glazing as described above to a pinched glazing, of the aeronautical type (cockpit and window) for pressurized or non-pressurized aircraft with fixed or rotary wing, railway , armored vehicle, or boat (wheelhouse, porthole). Mention is made of a cockpit glazing of a long or medium-haul commercial aircraft.
- FIG. 1 is a schematic cross-sectional representation of an example of laminated glazing mounted by pinching in a commercial aircraft cockpit window, known at the time of the realization of the present invention
- FIG. 2 schematically represents in section a first variant of the laminated glazing of the invention
- FIG. 3 schematically shows in section only the bolting of the window presser to the mounting structure through the stepped element
- FIG. 4 schematically represents in section a second variant of the laminated glazing of the invention
- FIG. 5 schematically shows in section a third variant of the laminated glazing of the invention
- FIG. 6 schematically represents in section a fourth variant of the laminated glazing of the invention.
- a laminated glazing of the prior art comprises a first sheet of glass 1 constituting an outer face of the glazing, 3 mm thick, bonded to a second sheet of glass 3 8 mm thick. thickness by a first intermediate adhesive layer 2 of polyurethane (PU) 5.76 mm thick.
- PU polyurethane
- a third sheet of glass 5 8 mm thick is glued to the second 3 by a second intermediate adhesive layer 4 of polyvinyl butyral (PVB) 2 mm thick.
- PVB polyvinyl butyral
- edges of the second and third glass sheets 3, 5 are optionally protected from shocks by sheets of relatively hard elastomer, not shown.
- the edge of the first sheet of glass 1 is set back from that of the second 3, a peripheral part of the free surface of the first sheet of glass 1, the edge of the latter 1, the edge of the first intermediate adhesive layer 2 and a part of the surface of the second sheet of glass 3 overflowing from the first sheet of glass 1 describing a continuous stepped contour which is covered by a stepped element 6 made of conductive metal.
- the metal element in step 6 is connected to ground.
- Said continuous stepped contour is covered by the stepped element 6 with the interposition of a thickness of 100 ⁇ m of polysulphide glue, not shown.
- the stepped element 6 is covered by a seal 7 for airtightness and watertightness, made of silicone, and if necessary by a drop of polysulphide, not shown, which provides the laminated glazing with aerodynamic continuity.
- a seal 7 for airtightness and watertightness made of silicone, and if necessary by a drop of polysulphide, not shown, which provides the laminated glazing with aerodynamic continuity.
- glazing and mounting structure such as aircraft structure and good inertness to process fluids such as aeronautical fluids, cleaning products, degreaser, glycol for ground de-icing and the like.
- the outer surface of the silicone gasket 7 has sealing lips 71 .
- a shim of thickness 70 (or stiffening) in material harder than the silicone is inserted so as to ensure that the laminated glazing is properly held in its mounting position, by exerting a certain pressure, such as by pinching.
- the 70 shim is solid, but may include recesses.
- the face of the glass sheet 1 facing the inside of the laminated structure carries a heating layer, consisting of indium oxide doped with tin (ITO in English for Indium Tin Oxide) or equivalent such as gold, silver multilayer, ZnO:Al, SnO2:F, etc.
- the heating layer is effective in defrosting the outer surface of the glass sheet 1 .
- the laminated glazing is fixed to the cabin 10 of the commercial aircraft by means of a window presser 20 (or rapplique) bolted to the cabin 10, and which presses on the overhang of the second sheet of glass 3 with respect to the first 1, support exerted via the stepped element 6 and the seal 7 made of silicone, of which, in particular, the lips 71 ensure the seal between the rapplique 20 and the seal 7 in silicone.
- a window presser 20 or rapplique
- the stepped element 6 extends to the contact surface between the ice press 20 and the mounting structure 10.
- the stepped element 6 has a rectangular profile 61 capable of fitting into the complementary profile 11 presented by the structure 10, and a complementary profile presented by the window press 20.
- the latter 20 is glued or bolted to the aircraft structure 10.
- the laminated glazing has a “full fail safe” function: in the event of breakage of the two structural plies 3 and 5, the mounting system described is capable of holding the glazing in place in its opening.
- the stepped element 6 provides a complete seal against air and water, making it possible to eliminate the silicone seal 7 between the stepped element 6 and the ice press 20.
- the assembly structure is thus thinned and lightened, and the positioning of the laminated glazing is more precise.
- the silicone seal 7 has sealing lips 72 vis-à-vis the structure 10 of assembly.
- a filler seal 8 in two-component polysulphide mastic is interposed between the ice press 20 (or ice clamp) and the stepped element 6 (Zed).
- This seal (8) is capable of providing aerodynamic continuity.
- the ice press 20 is bolted to the mounting structure 10 through the stepped element 6 provided for this purpose with a through hole.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Joining Of Glass To Other Materials (AREA)
- Laminated Bodies (AREA)
- Securing Of Glass Panes Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2112662A FR3129624B1 (fr) | 2021-11-29 | 2021-11-29 | Vitrage feuilleté à élément de blocage en gradin |
| PCT/FR2022/052097 WO2023094746A1 (fr) | 2021-11-29 | 2022-11-16 | Vitrage feuilleté à élément de blocage en gradin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4440830A1 true EP4440830A1 (fr) | 2024-10-09 |
Family
ID=80933641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22834682.1A Withdrawn EP4440830A1 (fr) | 2021-11-29 | 2022-11-16 | Vitrage feuilleté à élément de blocage en gradin |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250018686A1 (fr) |
| EP (1) | EP4440830A1 (fr) |
| CN (1) | CN118317866A (fr) |
| FR (1) | FR3129624B1 (fr) |
| WO (1) | WO2023094746A1 (fr) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2614925B1 (fr) * | 1987-05-07 | 1991-04-12 | Saint Gobain Vitrage | Vitrage mobile notamment pour vehicule automobile |
| JP5492647B2 (ja) * | 2010-04-19 | 2014-05-14 | 三菱航空機株式会社 | 電磁シールドを有する航空機のコックピット窓、航空機 |
| FR3068856B1 (fr) * | 2017-07-06 | 2021-10-29 | Saint Gobain | Suppression du bruit de decharge electrostatique par conduction entre un element metallique en gradin et le reseau electrique d'un vitrage |
| FR3068857B1 (fr) * | 2017-07-06 | 2021-10-29 | Saint Gobain | Suppression du bruit de decharge electrostatique par conduction entre un element metallique en gradin et le presse glace |
| EP4340555A3 (fr) * | 2018-06-11 | 2024-09-04 | AT & S Austria Technologie & Systemtechnik Aktiengesellschaft | Procédé de fabrication d'un support de composant avec une cavité étagée et ensemble composant étagé intégré dans la cavité étagée |
-
2021
- 2021-11-29 FR FR2112662A patent/FR3129624B1/fr active Active
-
2022
- 2022-11-16 WO PCT/FR2022/052097 patent/WO2023094746A1/fr not_active Ceased
- 2022-11-16 EP EP22834682.1A patent/EP4440830A1/fr not_active Withdrawn
- 2022-11-16 US US18/713,048 patent/US20250018686A1/en active Pending
- 2022-11-16 CN CN202280079194.1A patent/CN118317866A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN118317866A (zh) | 2024-07-09 |
| FR3129624B1 (fr) | 2024-10-18 |
| US20250018686A1 (en) | 2025-01-16 |
| WO2023094746A1 (fr) | 2023-06-01 |
| FR3129624A1 (fr) | 2023-06-02 |
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