Classifications

• • 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
  • B32B17/10165—Functional features of the laminated safety glass or glazing
  • B32B17/10247—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons
  • B32B17/10256—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons created by printing techniques
  • B32B17/10275—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons created by printing techniques on interlayer
• • 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
  • B32B17/10247—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons
  • B32B17/10256—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons created by printing techniques
  • B32B17/10284—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons created by printing techniques on intermediate layer
• • 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
  • B32B17/10339—Specific parts of the laminated safety glass or glazing being colored or tinted
  • B32B17/10348—Specific parts of the laminated safety glass or glazing being colored or tinted comprising an obscuration band
• • 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
• • 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
  • B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
  • B32B17/10899—Making laminated safety glass or glazing; Apparatus therefor by introducing interlayers of synthetic resin
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
  • B60J1/00—Windows; Windscreens; Accessories therefor
  • B60J1/001—Double glazing for vehicles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
  • B60J1/00—Windows; Windscreens; Accessories therefor
  • B60J1/02—Windows; Windscreens; Accessories therefor arranged at the vehicle front, e.g. structure of the glazing, mounting of the glazing
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
  • B60R11/04—Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle
• • 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
  • B32B2250/03—3 layers
• • 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
  • B32B2255/00—Coating on the layer surface
  • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
• • 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
  • B32B2605/00—Vehicles
• • 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
  • B32B2605/00—Vehicles
  • B32B2605/08—Cars
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
  • B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
  • B60R2011/0003—Arrangements for holding or mounting articles, not otherwise provided for characterised by position inside the vehicle
  • B60R2011/0026—Windows, e.g. windscreen

Definitions

• the present invention relates to a laminated glazing, in particular to a car windshield.
• This enamelled area of width 20-40 mm has the function of hiding the gluing area of the windshield on the bodywork. This function is fulfilled whether the enamel is in face 2, face 3 or face 4 laminated glazing (by convention, the faces of the glass sheets of a windshield or more generally of a laminated glazing are numbered from 1 for those who are in direct contact with the outside atmosphere). Most often this enamel is positioned in face 2 so as to mask any small defects PVB bonding edges (polyvinyl butyral: interlayer adhesive layer) that may appear over time.
• PVB bonding edges polyvinyl butyral: interlayer adhesive layer
• the camera associated with the windshield is an accessory that will become widespread. Its function is to assist the driver in his driving to detect risks and ultimately to avoid accidents.
• the performance specifications of the camera will become harder as this assistance becomes more important in the driving of a car and in particular the positioning accuracy of the detected objects will have to improve.
• This positioning accuracy requires firstly a calibration of the camera when mounted on the windshield and secondly sufficient optical quality in the portion of the windshield that is across the field of the camera.
• mdpt millidioptres
• These specifications for new car models are now around 100 mdpt. This level of distortion is very difficult to achieve in the camera zone when this zone is an enclave in the enamelled zone.
• optical distortions can be observed up to 400 mdpt, which are all the greater as we are close to the enamelled part. These optical distortions result from the fact that one can not avoid subjecting this zone of glass to high temperatures during the cooking of the enamel which is at a relatively small distance.
• the area of the windshield that is across the field of the camera is a transparent enclave in the enamelled area whose largest dimension is less than 60-80 mm, the entire transparent area has a distortion of up to 400 mdpt.
• the positioning accuracy of a PVB interlayer film or other is of the order of a millimeter and the alignment of the screen printing points rather requires a positioning accuracy of one tenth of a millimeter.
• This second problem is not only related to the use of PVB printing technology, but also of any other technology that involves a decoration related to one of the adhesive layers of the windshield. This is the case for example when inserting PVB or PET (polyethylene terephthalate) films supporting all or part of the decoration.
• the invention proposes a way to solve the problem that is to say to achieve a black decoration or other opaque and to preserve the optical quality sufficient for the precision needs of the camera.
• the invention consists of:
• the subject of the invention is therefore a laminated glazing unit comprising a first, respectively a second glass sheet intended to be positioned towards the outside, respectively inside an enclosure in the mounting position, glued to each other by an interlayer adhesive layer, the main faces of the glass sheets being conventionally numbered 1 to 4 from the outside to the inside of the enclosure in the mounting position, a camera being associated with the laminated glazing on the inside of the enclosure for evaluating the external environment of the enclosure, characterized in that the laminated glazing comprises an opaque decoration resulting from the superposition:
• a second decoration on the face 2, 3 or 4 of said glass sheets consisting of an enamel according to a gradient edge zone if it exists and in a solid band, delimiting a free zone (without enamel) of smaller dimension to that of the first decoration to which it is superimposed during the assembly of the laminated glazing, in that the solid band has a width of between 1 and 30 mm, and in that the smallest dimension of said free zone is not less than 50 mm.
• the evaluation of the external environment by the camera consists in particular in the known manner in the detection of any obstacle, pedestrian, two-wheeled, preceding vehicle, and in the precise measurement of their distance to the glazed enclosure, to the motor vehicle ...
• the positioning accuracy necessary to make the decoration on the aesthetically acceptable interlayer adhesive layer is reduced; it suffices that there is superposition of decorations located on a sheet of glass and on the interlayer adhesive layer.
• the optical distortion in the camera zone is that which is obtained in a zone without enamel, because this zone of the enamelled glass sheet in the field of the camera has not been subjected to an excessive temperature likely to degrade its optical quality during the cooking of the enamel. The reason is its relative distance from the enamelled area.
• the solid strip has a width at least equal to 2 mm, at most equal to 10 mm; this range of values is optimal to guarantee an easy layering of the first and second decorations and to obtain a visually perfect set;
• the smallest dimension of said free zone is not less than 70 mm; this value further guarantees the distance of the zone of the camera field from that of the enamel, and finally the maximum optical quality of this zone of the enamelled glass sheet and the laminated glazing unit;
• said first decoration is of dimensions greater than 1 to 20, preferably 2 to 8 mm, to those of said free zone; this value, together with that of the width of said solid band, makes it possible to guarantee an easy superposition of the first and second decorations and to obtain a visually perfect assembly, as mentioned previously;
• the second decoration is in accordance with the periphery of the laminated glazing, comprises a descending enamel tongue, in the mounting position, from the upper side of the laminated glazing unit in the mounting position, at its junction with a roof part of the enclosure, down below the base of a rear-view mirror stuck to the laminated glazing, and the enamel tongue consists of said gradient edge zone if it exists and of said full band;
• the first or the second decoration comprises a second zone without decoration intended to be associated with a rain sensor (to which the actuation of the wipers can be enslaved);
• the first or the second decoration comprises a third zone without decoration intended to be associated with a light sensor (to which the actuation of the headlights can be enslaved);
• the second and / or third zone (s) without decoration is (are) circumscribed in said enamel tongue, that is to say in the upper central area of the laminated glazing (that of the base rearview mirror and camera).
• the invention also aims to:
• PET polyethylene terephthalate
• a method of manufacturing a laminated glazing as described above characterized in that it comprises an operation of inserting in the interlayer adhesive layer an interlayer adhesive film such as polyvinyl butyral (PVB) thin colored, constituting the first decoration.
• the invention also relates to the application of a laminated glazing as described above as a windshield of a motor vehicle.
• FIG. 1 shows a first decoration on an intermediate adhesive layer of polyvinyl butyral (PVB);
• FIG. 2 shows a second decoration on a curved glass sheet
• FIG. 3 represents an automobile windshield in which the interlayer adhesive layer of FIG. 1 is superimposed on the glass sheet of FIG. 2.
• a first decoration 1 was made in black ink by screen printing on an intermediate adhesive layer of PVB for bonding two sheets of glass of a car windshield.
• the first decoration (1) comprises a first trapezoidal area without decoration (1 1) corresponding to the field area of a camera associated with the windshield.
• a bent soda-lime float glass sheet intended to form the outer glass sheet of the windshield comprises a second peripheral decoration 2 consisting of black enamel on its concave face (face 2 of the windshield).
• a central upper enamel tongue In the gluing zone of the base of an interior mirror, a central upper enamel tongue consists of a contour formed of a gradient of points 21 and a solid band 22 of width between 2 and 10. mm, delimiting a free zone without enamel 23, according to the first decoration 1 but of dimensions 2 to 8 mm smaller than those of the latter 1.
• the smallest dimension of the free zone 23 is not less than 70 mm.
• the second decoration 2 comprises a second and a third non-decorative zones 24, 25 coinciding vis-à-vis rain and light sensors connected to the wipers and headlights of the automobile.
• a fourth zone without decoration 26 makes it possible to see from outside the automobile the Vehicle Identification Number (VIN), and / or the technical characteristics of the windscreen ...
• the first decoration 1 is easily put into coincidence with the free enamel free zone 23 of the second decoration 2, perfectly marrying the full band 22, which it covers and with which it merges.
• the horizontal optical distortion is equal to 78 mdpt.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Joining Of Glass To Other Materials (AREA)
• Laminated Bodies (AREA)
• Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
• Window Of Vehicle (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=62683302

Family Applications (1)

Country Status (11)

Families Citing this family (11)

Family Cites Families (15)

• 2018
  • 2018-02-14 FR FR1851233A patent/FR3077761B1/fr active Active
• 2019
  • 2019-02-13 MA MA051835A patent/MA51835A/fr unknown
  • 2019-02-13 WO PCT/FR2019/050312 patent/WO2019158855A1/fr unknown
  • 2019-02-13 US US16/967,332 patent/US11420423B2/en active Active
  • 2019-02-13 JP JP2020542107A patent/JP7339264B2/ja active Active
  • 2019-02-13 PE PE2020001187A patent/PE20201306A1/es unknown
  • 2019-02-13 KR KR1020207025289A patent/KR20200120658A/ko not_active Application Discontinuation
  • 2019-02-13 EP EP19710743.6A patent/EP3752361A1/fr active Pending
  • 2019-02-13 MX MX2020008211A patent/MX2020008211A/es unknown
  • 2019-02-13 BR BR112020014439-8A patent/BR112020014439A2/pt not_active Application Discontinuation
  • 2019-02-13 CN CN201980000818.4A patent/CN110382227B/zh active Active

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