WO2019112018A1

WO2019112018A1 - Vehicle window glass

Info

Publication number: WO2019112018A1
Application number: PCT/JP2018/044975
Authority: WO
Inventors: 啓司野津
Original assignee: Ａｇｃ株式会社
Priority date: 2017-12-07
Filing date: 2018-12-06
Publication date: 2019-06-13
Also published as: CN111417533A; JP7211371B2; CN111417533B; JPWO2019112018A1

Abstract

Provided is a vehicle window glass with which it is possible to reduce the quantity of duplicated images, curb the expression of glare on the upper edge side, which has outstanding esthetic properties or design characteristics. This vehicle window glass is mounted to a vehicle, and comprises laminated glass having a pair of glass sheets with chamfered edges; and an intermediate layer which bonds the pair of glass sheets. At least one of the pair of glass sheets has a cross-sectional shape in the vertical direction which is a wedge-shape in which the sheet thickness at the upper edge side is greater than the sheet thickness on the lower edge. With the laminated glass mounted to the vehicle at a predetermined mounting angle θ, the distance d on the upper edge side, between a lower virtual line DL drawn diagonally downwards from the lower boundary line between the glass sheet on the inside of the vehicle and the intermediate layer at an angle of arctan (1/2) with respect to the horizontal direction and an upper virtual line UL drawn from the upper boundary line between the glass plate on the outside of the vehicle and the intermediate layer at an angle of arctan (1/2) with respect to the horizontal direction falls within the range of 0.5 mm to 0.95 mm, inclusive.

Description

Window glass for vehicles

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.

In recent years, 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. In the HUD, various types of information are projected on a window glass for a vehicle. However, when 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.

In order to reduce the amount of double images, Patent Document 1 discloses the use of an intermediate film having a bowl-like cross-sectional shape in the laminated glass of HUD.

Japanese Patent Application Laid-Open No. 11-130481

However, when a laminated glass using an intermediate film having a wedge-shaped cross section is attached to a vehicle as a window glass for a vehicle, glare may be seen from the vehicle outer side on the upper side of the laminated glass. This glare may impair the aesthetics or design of the window glass and the whole vehicle.

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 | occurrence | production of the glare in an upper side side, and the window glass for vehicles with high aesthetics or a design characteristic Intended to be provided.

The window glass for a vehicle according to the present invention 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. In a state in which the laminated glass is attached to the vehicle at a predetermined attachment angle θ and inclined, in the upper side, from the lower boundary of the glass plate on the inner side of the vehicle and the intermediate film with respect to the horizontal direction A lower imaginary line DL drawn obliquely downward at an angle of arctan (1/2) and an angle of arctan (1/2) with respect to the horizontal direction from the upper boundary between the glass plate on the vehicle outer side and the intermediate film Diagonally downward The distance d between the upper imaginary line UL drawn is 0.5mm or more 0.95mm or less.

ADVANTAGE OF THE INVENTION According to the window glass for vehicles of this invention, the quantity of the double image of HUD can be reduced, and generation | occurrence | production of glare can be suppressed by upper side side, and an aesthetic sense or the designability can be improved.

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.

Hereinafter, embodiments of the present invention will be described with reference to the attached drawings. The invention is illustrated by the following embodiments. However, changes can be made in many ways without departing from the scope of the present invention, and other embodiments other than the embodiment can be used. Therefore, all the modifications within the scope of the present invention are included in the claims. Here, in the drawings, portions indicated by the same symbols are basically similar elements having similar functions.

Hereinafter, preferred embodiments of the present invention will be described with reference to the attached drawings.

In FIG. 1, a vehicle window glass 10 is mounted on a vehicle 20 at a mounting angle θ (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). As shown in FIG. 1, 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.
In the present specification, “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.

As described above, when the vehicle window glass 10 applied to the HUD 40 is attached to the vehicle 20, outside light may be reflected on the upper side of the laminated glass 14 (see FIG. 2), and glare may be seen from the vehicle outer side . When this factor was examined, it was found that external light is irregularly reflected at the end face of the intermediate film 13 (see FIG. 2) on the upper side of the laminated glass 14 and glare occurs.

On the other hand, depending on the vehicle 20 to which the window glass 10 for a vehicle is attached, and the observer P (physical size, position, etc.), there is a concern that the condition for recognizing glare will change.

Therefore, 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 evaluation conditions will be described with reference to FIG. When the vehicle window glass 10 is attached to the vehicle 20, 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, and 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, and the distance W is assumed to be observed from relatively close And each figure was decided.

Angle theta ₁ of the line of sight when looking up at the upper side height Hu from these values from the sight line height He is calculated by the following equation.
θ ₁ = arctan ((Hu-He) / W) = arctan (500/1000) = arctan (1/2)
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.

In the embodiment, in the cross-sectional shape in the vertical direction, 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. On the other hand, 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. Examples of the inorganic glass include soda lime glass, aluminosilicate glass and alkali-free glass. Examples of soda lime glass include green glass and clear glass. It is preferable that 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%. Moreover, there is no restriction | limiting in particular about the method to manufacture the

glass plates

11 and 12, For example, 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.

Since 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.

For example, 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. When the plate thickness on the upper side of the glass plate 11 is within the above range, the mass of the laminated glass 14 can be suppressed while suppressing the cracking due to the stepping stone. 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. If 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

It is preferable that 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. Similarly, 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.

Although the thickness of the upper end 11A is different from that of the lower end 11A, it is preferable that the shapes of the upper end 11A and the lower end 11A be substantially the same. 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.

Moreover, 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. By pressing the both ends in the width direction of the glass ribbon by a pair of rollers, rotating the pair of rollers and pulling in the width direction, 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. By cutting this glass ribbon along the longitudinal direction, for example, at the center, a wedge-shaped glass plate 11 can be obtained. In addition, if molding conditions are adjusted, 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.

Furthermore, by chamfering the end of the obtained wedge-shaped glass plate 11 with one rotary grindstone, 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.

As the intermediate film 13, 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.

As shown in FIG. 2, 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. By setting the film thickness Tp in the above-mentioned range, the distance d described later can be made within the predetermined range. 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.

Next, the distance d related to the intermediate film 13 determined by the evaluation conditions described in FIG. 1 will be described with reference to FIG. At the upper side of laminated glass 14, lower imaginary line DL obliquely downward at an angle of θ ₁ = arctan (1/2) with respect to the horizontal direction from glass plate 12, intermediate film 13 and lower boundary DBL on the inner side of the vehicle Pull. An upper imaginary line UL is drawn obliquely downward at an angle of θ ₁ = arctan (1/2) with respect to the horizontal direction from the glass plate 11 outside the vehicle, the intermediate film 13 and the upper boundary UBL. The distance between the lower virtual line DL and the upper virtual line UL is a distance d. 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. When 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 In the case where the black print layer is printed with a gap between them, it is useful to set the distance d of the embodiment to 0.5 mm or more and 0.95 mm or less. Outside light is irradiated to the intermediate film 13 through the non-printed area of the black print layer, which has the possibility of causing glare due to diffuse reflection. When 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.

When the vehicle window glass 10 is attached to the vehicle 20 at an attachment angle θ of 20 ° or more and 55 ° or less with respect to the horizontal direction, the effects of the present invention are effectively exhibited. When the vehicle window glass 10 has the same configuration, the smaller the attachment angle θ, the larger the distance d observed by the observer P. In this case, by using 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. When the vehicle window glass 10 is attached to the vehicle 20 at a mounting angle θ 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 θ, the effect of the present invention is more effective.

The preferable aspect of embodiment is demonstrated.

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. By making the glass plate 11 outside the vehicle into a bowl shape, the thickness of the end portion 11A of the upper side of the glass plate 11 is increased. As a result, since the chamfered portion tends to be deep, 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.

As shown in FIG. 2 of the embodiment, 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. A straight line connecting the upper end where the inner side surface of the glass plate 11 and the intermediate film 13 contact each other and the upper end where the outer side of the glass plate 12 and the intermediate film 13 contact each other. It is preferably 1 mm or more, more preferably 0.13 mm or more, and still more preferably 0.16 mm or more.

Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited by the configurations of the examples below.

(Manufacture of laminated glass)
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, and 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, and the thickness on the upper side of the one cut out in a windshield shape was 2.0 mm. We also chamfered the glass plate on the inside of the car.

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.

(Evaluation of glaring)
Under each evaluation condition, the produced laminated glass was visually observed for glare on the upper side. The case where the glare was almost invisible was evaluated as ○, the case where the light was anxious was evaluated as △, and the case where the glare was noticeable was evaluated as x. Table 1 describes the conditions and evaluation results of Examples 1 and 2 and Comparative Examples 1 and 2.

As shown in Table 1, Examples 1 and 2 were the evaluation results of ○. On the other hand, Comparative Example 1 was the evaluation result of Δ, and Comparative Example 2 was the evaluation result of x.

As is clear from Table 1, it has been confirmed that the distance d in Examples 1 and 2 exerts the effect of suppressing glare. Moreover, 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.

In addition, the entire contents of the specification, claims, abstract and drawing of Japanese Patent Application No. 2017-235284 filed on Dec. 7, 2017 are incorporated herein by reference, as disclosure of the specification of the present invention, It is what it takes.

DESCRIPTION OF SYMBOLS 10 ... Window glass for vehicles, 11 ... Glass plate, 11A ... End part, 12 ... Glass plate, 12A ... End part, 13 ... Intermediate film, 14 ... Laminated glass 20: Vehicle 40: HUD 50: display device DBL: lower boundary DL: lower imaginary line P: observer UBL: upper boundary , UL: upper virtual line, d: distance, L: length, W: distance, θ: mounting angle, θ _1: angle

Claims

A window glass for a vehicle attached to the vehicle;
The vehicle window glass is made of laminated glass having a pair of glass plates having chamfered ends and an intermediate film for bonding the pair of glass plates,
At least one of the pair of glass plates has a cross-sectional shape in the vertical direction and a wedge shape in which the plate thickness on the upper side is larger than the plate thickness on the lower side,
And, with the laminated glass attached to the vehicle at a predetermined attachment angle θ,
On the upper side, a lower imaginary line DL drawn obliquely downward at an angle of arctan (1/2) with respect to the horizontal direction from the lower boundary between the glass plate on the inner side of the vehicle and the intermediate film, The distance d between the upper imaginary line UL drawn obliquely downward at an angle of arctan (1/2) with respect to the horizontal direction from the upper boundary between the glass plate and the intermediate film is 0.5 mm or more and 0.95 mm or less A window glass for vehicles characterized by
The window glass for a vehicle according to claim 1, wherein the film thickness Tp on the upper side of the intermediate film is 0.65 mm or more and 0.95 mm or less.
The window glass for a vehicle according to claim 1, wherein the glass plate on the vehicle outer side has a wedge-shaped cross-sectional shape.
The window glass for a vehicle according to claim 3, wherein the wedge angle in the cross-sectional shape is 0.1 mrad or more and 0.7 mrad or less.
The window glass for a vehicle according to any one of claims 1 to 4, wherein a length L of the end on the upper side of the glass plate on the vehicle outside is 1 mm or more.
The window glass for a vehicle according to any one of claims 1 to 5, wherein an end on an upper side of the intermediate film has a concave shape.
The window glass for a vehicle according to any one of claims 1 to 6, wherein the mounting angle θ is 20 ° or more and 55 ° or less.
The window glass for a vehicle according to any one of claims 1 to 7, wherein the intermediate film has a wedge shape in which the film thickness on the upper side is larger than the film thickness on the lower side in the vertical direction.
The window glass for a vehicle according to claim 8, wherein the intermediate film has a depression angle of 0.3 mrad or less in a cross-sectional shape.
The window glass for a vehicle according to any one of claims 1 to 9, wherein the glass plate on the outside of the vehicle is green glass.
The window glass for a vehicle according to claim 10, wherein the glass plate on the outside of the vehicle has a total iron amount converted to Fe 2 O 3 of 0.4% by mass or more.
The window glass for vehicles according to any one of claims 1 to 11 which does not have a colored layer in a car interior side by the side of a top of said glass plate of the car exterior.
The colored layer is provided with a gap of 0.2 mm or more from the boundary between the chamfered area and the non-chamfered area of the inner side surface of the upper side of the glass plate on the outer side of the vehicle, having a colored layer. Window glass for vehicles as described in.