WO2019112018A1 - 車両用窓ガラス - Google Patents

車両用窓ガラス Download PDF

Info

Publication number
WO2019112018A1
WO2019112018A1 PCT/JP2018/044975 JP2018044975W WO2019112018A1 WO 2019112018 A1 WO2019112018 A1 WO 2019112018A1 JP 2018044975 W JP2018044975 W JP 2018044975W WO 2019112018 A1 WO2019112018 A1 WO 2019112018A1
Authority
WO
WIPO (PCT)
Prior art keywords
glass
vehicle
window glass
glass plate
upper side
Prior art date
Application number
PCT/JP2018/044975
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
啓司 野津
Original Assignee
Ａｇｃ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ａｇｃ株式会社 filed Critical Ａｇｃ株式会社
Priority to JP2019558286A priority Critical patent/JP7211371B2/ja
Priority to CN201880075860.8A priority patent/CN111417533B/zh
Publication of WO2019112018A1 publication Critical patent/WO2019112018A1/ja

Links

Images

Classifications

    • 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
    • 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

Definitions

  • the present invention relates to a window glass for a vehicle, and in particular to a window glass for a vehicle suitable for a head-up display.
  • a head-up display (hereinafter referred to as HUD) has been used as a method of displaying information to the driver of a vehicle such as a car.
  • HUD head-up display
  • various types of information are projected on a window glass for a vehicle.
  • laminated glass in which two glass plates are disposed in parallel is used as a window glass for vehicles, there is a disadvantage that the projected image can be seen as a double image.
  • Patent Document 1 discloses the use of an intermediate film having a bowl-like cross-sectional shape in the laminated glass of HUD.
  • This invention is made in view of such a subject, and can reduce the quantity of the double image of HUD, and can suppress generation
  • the window glass for a vehicle is a window glass for a vehicle attached to a vehicle, and the window glass for a vehicle joins a pair of glass plates having a beveled end and the pair of glass plates It is made of laminated glass having an intermediate film, and at least one of the pair of glass plates has a wedge shape in which the plate thickness on the upper side is larger than the plate thickness on the lower side.
  • the quantity of the double image of HUD can be reduced, and generation
  • FIG. 1 is an explanatory view showing a configuration of a window glass for a vehicle attached to the vehicle. It is a schematic cross section of the window glass for vehicles of FIG.
  • a vehicle window glass 10 is mounted on a vehicle 20 at a mounting angle ⁇ (a center point of the horizontal width of the window glass body is sequentially connected from the lower side to the upper side as a center line
  • the attached state is shown at an angle formed by (a horizontal ground surface and a plane parallel to the surface).
  • the vehicle window glass 10 is used as part of the HUD 40.
  • the HUD 40 further includes a display unit 50.
  • the display information emitted from the display unit 50 is displayed on the window glass 10 for a vehicle.
  • the driver (not shown) can visually recognize the display information displayed on the window glass 10 for a vehicle.
  • upper”, “lower”, “inside” and “outside” indicating directions and positions are “upper”, “lower” and “inside” when the window glass 10 for vehicle is attached to the vehicle 20. Means “outside”. Also, “horizontal direction” means the horizontal direction with respect to the horizontal ground surface.
  • the inventor assumes a possible situation, determines an evaluation condition of glare, and sets the distance d (see FIG. 2) related to the interlayer 13 to a specific range when evaluated under the determined evaluation condition. Found that the glare could be reduced. Furthermore, in order to make the distance d related to the intermediate film 13 into a specific range, by making one glass plate of the laminated glass 14 have a wedge-shaped cross-sectional shape, the amount of the double image of the HUD is not sacrificed either. It has also been found that the present invention can be achieved.
  • the upper side height Hu from the horizontal ground surface to the upper side of the vehicle window glass 10 is 2000 mm, and the line of sight from the horizontal ground surface to the eyes of the observer P
  • the height He was 1500 mm
  • the horizontal distance W between the upper side of the vehicle window glass 10 and the eye of the observer P was 1000 mm.
  • the upper side height Hu is assumed to be the height when attached to an average vehicle 20
  • the gaze height He is assumed to be a person of about 1600 mm in height
  • the distance W is assumed to be observed from relatively close And each figure was decided.
  • FIG. 2 is a schematic cross-sectional view of the window glass 10 for a vehicle.
  • the window glass 10 for vehicles is comprised with the laminated glass 14 which has a pair of glass plates 11 and 12, and the intermediate film 13 which joins a pair of glass plates 11 and 12.
  • FIG. A glass plate 11 is disposed outside the vehicle, and a glass plate 12 is disposed inside the vehicle.
  • the glass plate 11 outside the vehicle has a wedge shape in which the plate thickness on the upper side is larger than the plate thickness on the lower side.
  • the glass plate 12 on the inside of the car has a constant thickness in the cross-sectional shape in the vertical direction.
  • the laminated glass 14 may include two or more glass plates, as long as any one of the two or more glass plates has a wedge-shaped cross-sectional shape, and in the embodiment, the glass plate 11 and any one of the glass plates 12 may be glass plates having a wedge-shaped cross-sectional shape.
  • the glass plates 11 and 12 may be inorganic glass or organic glass made of resin.
  • the inorganic glass include soda lime glass, aluminosilicate glass and alkali-free glass.
  • soda lime glass include green glass and clear glass.
  • the glass plate 11 is green glass because the glare of the intermediate film 13 is difficult to visually recognize and the glare is further suppressed by the synergistic effect with the effect of the present invention.
  • the green glass preferably has a total iron content that in terms of Fe 2 O 3 more than 0.4 wt%, and more preferably has more than 0.45 mass%.
  • the glass plate manufactured by the float method may be used.
  • the glass plates 11 and 12 may be subjected to a strengthening treatment such as physical strengthening or chemical strengthening.
  • the glass plates 11 and 12 are used as the laminated glass 14 of the HUD 40 on the front of the vehicle, the glass plates 11 and 12 have a visible light transmittance of 70% or more after being combined via the intermediate film 13 It is preferable to have.
  • the wedge-shaped glass plate 11 preferably has a plate thickness of 1.8 mm or more and 3.0 mm or less on the upper side, and more preferably has a plate thickness of 2.0 mm or more and 2.8 mm or less.
  • the wedge angle in the cross-sectional shape of the wedge-shaped glass plate 11 is preferably 0.1 mrad or more and 0.7 mrad or less, more preferably 0.2 mrad or more and 0.6 mrad or less, and still more preferably 0.3 mrad or more and 0.6 mrad or less.
  • the wedge angle of the glass plate 11 is within the above range, there is no need to provide a wedge angle to the intermediate film 13, that is, there is no need to thicken the film thickness on the upper side of the interlayer 13 It can be suppressed dominantly.
  • the wedge angle can be calculated by dividing the difference in thickness between the upper side and the lower side of the glass plate by the length between the upper side and the lower side.
  • the wedge-shaped glass plate 11 partially includes a flat portion, that is, a flat portion, in the middle from the upper end 11A to the lower end 11A, and the wedge angle is not constant but changes. You may
  • the glass plate 12 have a cross-sectional shape with a certain thickness, and therefore, it is preferable that the opposing main surfaces of the glass plate 12 be parallel or substantially parallel.
  • the glass plate 12 preferably has a thickness of, for example, 1.1 mm or more and 2.3 mm or less, more preferably, has a thickness of 1.3 mm or more and 2.0 mm or less, and is 1.5 mm or more and 1.8 mm or less It is further preferable to have a board thickness of When the thickness of the glass plate 12 is in the above range, the rigidity suitable for manufacturing the laminated glass 14 can be obtained, and the mass can be suppressed.
  • the glass plate 11 is provided with a chamfered end 11A.
  • the chamfered end portion 11A suppresses the occurrence of defects such as chipping.
  • the glass plate 12 is provided with a beveled end 12A. It is preferable that the end 11A of the wedge-shaped glass plate 11 outside the vehicle has a length L of 1 mm or more. The length L of the end portion 11A is the distance from the tip of the glass plate 11 to the area where chamfering is performed.
  • the glass plate 12 preferably has a constant thickness, and the plate thickness of the upper side end 12A and the lower side end 12A is the same, and the upper side 12A and the lower side 12A are equal. It is preferable that the shape of is substantially the same.
  • the glass plate 11 and the glass plate 12 may be curved in a predetermined shape.
  • the wedge-shaped glass plate 11 can be manufactured, for example, by the float method.
  • the molten glass is continuously fed onto the molten metal and formed into a ribbon ribbon by flowing over the molten metal.
  • the thickness of the glass ribbon is increased from the both ends in the width direction of the glass ribbon toward the center in the width direction. It can be enlarged.
  • a wedge-shaped glass plate 11 By cutting this glass ribbon along the longitudinal direction, for example, at the center, a wedge-shaped glass plate 11 can be obtained.
  • a glass ribbon whose thickness increases from the widthwise end toward the central portion in the width direction, or a glass ribbon whose thickness increases from one end in the widthwise direction to the other end in the widthwise direction can also be made.
  • the thickness of the glass ribbon can be adjusted by the circumferential velocity of the roller, etc. in addition to the tension by the roller.
  • the shapes of the end 11A on the upper side and the end 11A on the lower side can be made substantially the same. . Grinding with one rotating grindstone can efficiently chamfer the wedge-shaped glass plate 11.
  • polyvinyl acetal resin is suitably used. Although it is not particularly limited, it is possible to obtain the interlayer film 13 excellent in the balance of various performances such as excellent transparency, weather resistance, strength, adhesion, penetration resistance, impact energy absorption, moisture resistance, thermal insulation and sound insulation. From this, polyvinyl butyral resin (PVB) is suitably used as the polyvinyl acetal resin. These polyvinyl acetal resins may be used alone or in combination of two or more.
  • the intermediate film 13 may be a sound insulation film in which the sound insulation layer is sandwiched between skin layers having a relatively high Young's modulus.
  • the intermediate film 13 usually has a cross-sectional shape with a constant film thickness. That is, in the intermediate film 13, the surface in contact with the glass plate 11 and the surface in contact with the glass plate 12 are parallel or substantially parallel.
  • the thickness Tp of the intermediate film 13 on the upper side is preferably 0.65 mm or more and 0.95 mm or less, more preferably 0.7 mm or more and 0.9 mm or less, and still more preferably 0.75 mm or more and 0.9 mm or less.
  • the intermediate film 13 may have a wedge shape in which the film thickness on the upper side is larger than the film thickness on the lower side as long as the wedge angle is smaller.
  • the wedge angle of the intermediate film 13 is preferably 0.3 mrad or less, more preferably 0.25 mrad or less.
  • the distance d means the thickness on the upper side of the intermediate film 13 observed by the observer P under the evaluation conditions described in FIG. As shown in Examples described later, when the distance d is in the range of 0.5 mm or more and 0.95 mm, glare is hardly observed. On the other hand, when the distance d is outside the range of 0.5 mm or more and 0.95 mm The glaring was observed. It can be appreciated that the range of distance d is important.
  • the distance d is preferably 0.55 mm or more and 0.9 mm or less, more preferably 0.6 mm or more and 0.9 mm or less, and still more preferably 0.65 mm or more and 0.9 mm or less.
  • the outer surface of the glass plate 11 on the outer side of the laminated glass 14 is used as the first surface and the inner surface as the second surface, and the inner surface of the glass plate 12 as the inner surface as the third surface and the outer surface as the fourth surface. It is called.
  • a colored layer represented by a black print layer called black sera is not printed on the upper side of the second surface, or a gap of 0.2 mm or more from the boundary between the chamfered portion and the non-chamfered portion of the upper side of the second surface
  • it is useful to set the distance d of the embodiment to 0.5 mm or more and 0.95 mm or less.
  • the colored layer is printed with a gap of 0.25 mm or more from the boundary between the chamfered portion and the non-chamfered portion of the second surface, 0. 0 from the boundary between the chamfered portion and the non-chamfered portion of the second surface. If the colored layer is printed with a gap of 3 mm or more, the distance d of the embodiment is more useful.
  • the effects of the present invention are effectively exhibited.
  • the vehicle window glass 10 has the same configuration, the smaller the attachment angle ⁇ , the larger the distance d observed by the observer P.
  • the wedge-shaped glass plate 11 the distance d related to the intermediate film 13 can be reduced as compared to the laminated glass using only the wedge-shaped intermediate film.
  • the vehicle window glass 10 When the vehicle window glass 10 is attached to the vehicle 20 at a mounting angle ⁇ of 20 ° or more and 50 ° or less with respect to the horizontal direction, the vehicle window glass 10 is further attached with 20 ° or more and 45 ° or less with respect to the horizontal direction When attached to the vehicle 20 at an angle ⁇ , the effect of the present invention is more effective.
  • any one of the glass plate 11 and the glass plate 12 may be a glass plate having a wedge-shaped cross-sectional shape, but as shown in FIG. 2 of the embodiment, the glass plate 11 outside the vehicle is wedge-shaped Is preferred.
  • the thickness of the end portion 11A of the upper side of the glass plate 11 is increased.
  • the length L of the end portion 11A is increased.
  • the end of the glass plate may be chamfered by a grindstone or the like. Since the end 11A chamfered by the grindstone has a large haze and is opaque, it blocks external light and does not easily generate glare.
  • the length L of the end portion 11A is preferably 1 mm or more, more preferably 1.1 mm or more, still more preferably 1.2 mm or more, and still more preferably 1.3 mm or more.
  • the upper end of the intermediate film 13 has a flat cross-sectional shape, but the shape of the end is not flat, and a recess in which the central portion is recessed It is preferable that it is a shape. Glare can be suppressed by setting it as a recessed part shape.
  • the maximum distance to the recess of the intermediate film 13 is 0.
  • Example 1 A glass plate of soda lime composition (clear glass) whose thickness changes from one end toward the other end by the float method was produced and cut out in the shape of a windshield of an automobile.
  • the outer peripheral portion was chamfered to form a glass plate on the outside of the vehicle.
  • the wedge angle of the glass plate on the outside of the vehicle was 0.33 mrad
  • the plate thickness on the upper side was 2.4 mm
  • the length L was 1.1 mm.
  • the glass plate on the inner side of the car had a soda lime composition (clear glass) and had a certain thickness
  • the thickness on the upper side of the one cut out in a windshield shape was 2.0 mm.
  • This laminated body was put into a vacuum bag and deaerated while sandwiching the PVB monolayer interlayer between the glass plate on the outside of the vehicle and the main surface of the glass plate on the inside of the vehicle. After that, preliminary pressure bonding was performed, heating and pressurization were performed in an autoclave, and finally cooling was performed to obtain laminated glass.
  • the film thickness on the upper side of the intermediate film was 0.75 mm, and the film thickness on the lower side was 0.7 mm.
  • the wedge angle of the laminated glass was 0.37 mrad.
  • the upper side end of the intermediate film was positioned at the boundary between the chamfered portion and the non-chamfered portion of the glass plate on the outside of the vehicle and the glass plate on the inside of the vehicle as shown in FIG.
  • the laminated glass was placed on the inspection table such that the upper side height Hu was 2000 mm, the visual line height He was 1500 mm, and the horizontal distance W was evaluation conditions of 1000 mm and a mounting angle of 55 °. Under these conditions, the state in which a specific observer observes the laminated glass attached to the vehicle was reproduced. The distance d was 0.66 mm.
  • Example 2 In the laminated glass of Example 2, the thickness of the intermediate film on the upper side is 0.90 mm, and the wedge angle of the laminated glass totaled with the wedge angle of the outer glass plate is 0.50 mrad, and the attachment angle The same structure as in Example 1 was adopted except that 25 ° was set. The distance d was 0.90 mm.
  • Comparative example 1 In the laminated glass of Comparative Example 1, the thickness of the intermediate film on the upper side is 1.15 mm, the wedge angle is 0.37 mrad, the glass plate on the outside of the vehicle is 2.0 mm in uniform thickness, and the length L is The configuration was the same as that of Example 1 except that it was 1.0 mm. The distance d was 1.01 mm.
  • Comparative example 2 In the laminated glass of Comparative Example 2, the thickness of the intermediate film on the upper side is 1.30 mm, the wedge angle is 0.5 mrad, the glass plate on the outside of the vehicle is 2.0 mm in uniform thickness, and the mounting angle is 25
  • the configuration was the same as that of Example 1 except that the temperature was set to.
  • the distance d was 1.30 mm.
  • Examples 1 and 2 were the evaluation results of ⁇ .
  • Comparative Example 1 was the evaluation result of ⁇
  • Comparative Example 2 was the evaluation result of x.
  • Example 1 and 2 exerts the effect of suppressing glare.
  • the laminated glass of Example 1 and 2 has a wedge angle by the vehicle outer surface and the vehicle interior side, and the double image of HUD was also able to be suppressed notably.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joining Of Glass To Other Materials (AREA)
PCT/JP2018/044975 2017-12-07 2018-12-06 車両用窓ガラス WO2019112018A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2019558286A JP7211371B2 (ja) 2017-12-07 2018-12-06 車両用窓ガラス
CN201880075860.8A CN111417533B (zh) 2017-12-07 2018-12-06 车辆用窗玻璃

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-235284 2017-12-07
JP2017235284 2017-12-07

Publications (1)

Publication Number Publication Date
WO2019112018A1 true WO2019112018A1 (ja) 2019-06-13

Family

ID=66750520

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/044975 WO2019112018A1 (ja) 2017-12-07 2018-12-06 車両用窓ガラス

Country Status (3)

Country Link
JP (1) JP7211371B2 (zh)
CN (1) CN111417533B (zh)
WO (1) WO2019112018A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3831598A1 (de) * 2019-12-02 2021-06-09 Saint-Gobain Glass France Verbundscheibe und projektionsanordnung für ein head-up-display
CN115335343A (zh) * 2020-03-23 2022-11-11 日本板硝子株式会社 挡风玻璃

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07195959A (ja) * 1991-08-20 1995-08-01 Ppg Ind Inc ヘッドアップディスプレー装置
WO2003059837A1 (fr) * 2002-01-11 2003-07-24 Nippon Sheet Glass Company, Limited Verre de securite destine a des vehicules et procede de fabrication
JP2008230894A (ja) * 2007-03-20 2008-10-02 Nippon Sheet Glass Co Ltd 樹脂モールディング付き合わせガラス、合わせガラス、および合わせガラス用中間膜
US20130115435A1 (en) * 2011-11-04 2013-05-09 GM Global Technology Operations LLC Laminated windshield glass
JP2013129552A (ja) * 2011-12-20 2013-07-04 Central Glass Co Ltd 車両用合わせガラス及びその製造方法
JP2017105665A (ja) * 2015-12-08 2017-06-15 旭硝子株式会社 合わせガラス
WO2017170728A1 (ja) * 2016-03-30 2017-10-05 積水化学工業株式会社 合わせガラス用中間膜及び合わせガラス

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5013134A (en) * 1989-09-28 1991-05-07 Hughes Aircraft Company Ghost-free automotive head-up display employing a wedged windshield
JP2002154321A (ja) * 2000-11-17 2002-05-28 Asahi Glass Co Ltd 自動車用ガラス板および自動車用ガラス板の製造方法
JP4460550B2 (ja) * 2006-06-20 2010-05-12 日本板硝子株式会社 合わせガラス
JP2013001594A (ja) * 2011-06-15 2013-01-07 Sekisui Chem Co Ltd 合わせガラス用中間膜及び合わせガラス
JP2016224080A (ja) * 2015-05-26 2016-12-28 株式会社オキサイド 光コンバイナ、投影型虚像視ディスプレイ、設計プログラムおよび設計方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07195959A (ja) * 1991-08-20 1995-08-01 Ppg Ind Inc ヘッドアップディスプレー装置
WO2003059837A1 (fr) * 2002-01-11 2003-07-24 Nippon Sheet Glass Company, Limited Verre de securite destine a des vehicules et procede de fabrication
JP2008230894A (ja) * 2007-03-20 2008-10-02 Nippon Sheet Glass Co Ltd 樹脂モールディング付き合わせガラス、合わせガラス、および合わせガラス用中間膜
US20130115435A1 (en) * 2011-11-04 2013-05-09 GM Global Technology Operations LLC Laminated windshield glass
JP2013129552A (ja) * 2011-12-20 2013-07-04 Central Glass Co Ltd 車両用合わせガラス及びその製造方法
JP2017105665A (ja) * 2015-12-08 2017-06-15 旭硝子株式会社 合わせガラス
WO2017170728A1 (ja) * 2016-03-30 2017-10-05 積水化学工業株式会社 合わせガラス用中間膜及び合わせガラス

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3831598A1 (de) * 2019-12-02 2021-06-09 Saint-Gobain Glass France Verbundscheibe und projektionsanordnung für ein head-up-display
CN115335343A (zh) * 2020-03-23 2022-11-11 日本板硝子株式会社 挡风玻璃

Also Published As

Publication number Publication date
JP7211371B2 (ja) 2023-01-24
JPWO2019112018A1 (ja) 2020-12-10
CN111417533B (zh) 2023-06-09
CN111417533A (zh) 2020-07-14

Similar Documents

Publication Publication Date Title
JP6938366B2 (ja) ウインドシールド
TWI652164B (zh) 抬頭顯示器系統之玻璃積層結構
US10800143B2 (en) Glass laminate structures for head-up display system
JP6717093B2 (ja) 合わせガラス
JP6568356B2 (ja) 車両用フロントガラスの製造方法
EP1958764A1 (en) Laminated glass for vehicle
JP2019511987A (ja) ヘッドアップディスプレイのための導電性コーティングを有している複合ペイン
JP7260790B2 (ja) 車両フロント窓用の合せガラス
EP3381880B1 (en) Laminated glass
JP7003929B2 (ja) 合わせガラス
JP6947176B2 (ja) 合わせガラス
WO2019112018A1 (ja) 車両用窓ガラス
JP7206495B2 (ja) 車両フロント窓用の合せガラス
US20220105709A1 (en) Glass
JP4371654B2 (ja) 合わせガラス用中間膜及び合わせガラス。
WO2024204369A1 (ja) 合わせガラス及びその製造方法
JP2023061360A (ja) 合わせガラス及びその製造方法
WO2019194292A1 (ja) 合わせガラス

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18886614

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2019558286

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18886614

Country of ref document: EP

Kind code of ref document: A1