JP2023140867A - Window glass for vehicle window - Google Patents

Abstract

To provide a window glass for a vehicle window in which bonding strength between a metal member and a resin molding can be enhanced while suppressing contact of the metal member with a vehicle.SOLUTION: A window glass 10 for a vehicle window comprises a glass plate 1 and a resin molding 2 provided at a peripheral part of the glass plate 1, and the glass plate 1 and the resin molding 2 are integrally molded products. The window glass 10 for the vehicle window further comprises a metal member 3 high in rigidity compared with the resin molding 2. The metal member 3 is, when the window glass 10 for the vehicle window is attached to the vehicle, arranged on an in-vehicle side of the resin molding 2. The metal member 3 has a through hole 3b, and the resin molding 2 comprises a metal member protection part 2b which fills the through hole 3b of the metal member 3 and further covers at least a part of the metal member 3.SELECTED DRAWING: Figure 2

Description

The present disclosure relates to glazing for vehicle windows.

The glass with a molding disclosed in Patent Document 1 consists of glass, a metal molding facing the edge of the glass, and a resin molding connecting the metal molding to the edge of the glass. The metal molding and the resin molding are bonded together by applying a primer.

Japanese Patent Application Publication No. 2013-188967

The inventors of the present application discovered the following problem.
When such glass with a molding is attached to a vehicle, there is a risk that the metal molding, which is a metal member, may come into contact with the vehicle body, causing scratches on the vehicle or the metal member. As a result, such scratches can cause rust on the vehicle or metal components. Furthermore, there is room for consideration of the adhesive strength between the metal molding and the resin molding.

The present disclosure has been made in view of the above-mentioned problems, and provides a vehicle window glass that can increase the adhesive strength between a metal member and a resin molding while suppressing contact between the metal member and the vehicle. It is something to do.

The vehicle window glass according to the present disclosure includes:
glass plate and
a resin molding provided on the peripheral edge of the glass plate,
A vehicle window glass in which the glass plate and the resin molding are integrally molded,
further comprising a metal member having higher rigidity than the resin molding,
The metal member is placed on the inside of the resin molding when the vehicle window glass is attached to the vehicle,
The metal member has a through hole,
The resin molding includes a metal member protection portion that fills the through hole of the metal member and covers at least a portion of the metal member.

Further, the metal member protection portion may have a thickness of 1 mm or more.

Further, the resin molding may include a plurality of the metal member protection parts, and the metal member protection parts may be arranged at a predetermined interval on the lower side of the vehicle window glass.

Further, the arithmetic mean roughness Ra of the surface of the metal member protection portion may be 1 to 30 μm.

Further, the thickness of the metal member protection portion may be larger than the thickness of the metal member.

Further, when the vehicle window glass is attached to the vehicle, the thickness of the metal member protection portion may be larger than the distance between the metal member protection portion and the vehicle.

Further, the metal member protection portion may cover the periphery of the through hole of the metal member.

Further, the metal member protection portion may cover at least a portion of an edge of the metal member.

Further, the integrally molded product may be characterized in that the resin molding is integrally molded around the glass plate by injection molding.

Further, the integrally molded product may be characterized in that the resin molding is integrally molded around the glass plate and the metal member by injection molding.

According to the present disclosure, the adhesive strength between the metal member and the resin molding can be increased while suppressing contact between the metal member and the vehicle.

FIG. 1 is a front view of an example of the configuration of a vehicle window glass according to an embodiment. FIG. 2 is a sectional view taken along cutting line II-II of a main part of a configuration example of a vehicle window glass according to an embodiment. It is a figure showing the window glass for vehicle windows concerning an embodiment attached to a vehicle body. FIG. 2 is a cross-sectional view of a vehicle window glass according to related technology.

(Related technology)
Prior to a specific embodiment to which the present disclosure is applied, a vehicle window glass according to a technique related to the present disclosure will be described with reference to FIG. FIG. 4 is a sectional view of a main part of a vehicle window glass according to a related technique.

A vehicle window glass 90 shown in FIG. 4 is attached to a vehicle body B9. The vehicle window glass 90 includes a glass 91, a resin molding 92, and a metal member 93. The resin molding 92 includes the lower end 91a of the glass 91. A lower end 92c of the resin molding 92 is supported by the vehicle body B9. The metal member 93 is provided on the surface of the resin molding 92 on the vehicle body B9 side. The upper portion 93a of the metal member 93 and the vehicle body B9 are arranged with a predetermined distance L9 therebetween and face each other.

Here, the vehicle window glass 90 may receive external force, and the upper portion 93a of the metal member 93 may approach toward the vehicle body B9. As a result, the upper part 93a of the metal member 93 and the vehicle body B9 can come into contact.

Hereinafter, specific embodiments to which the present invention is applied will be described in detail with reference to the drawings. However, the present invention is not limited to the following embodiments. Further, in order to clarify the explanation, the following description and drawings are simplified as appropriate.

(Embodiment)
An embodiment will be described with reference to FIGS. 1 to 3. FIG. 1 is a front view of a configuration example of a vehicle window glass according to an embodiment. FIG. 2 is a sectional view taken along cutting line II-II of a main part of an example of the structure of the vehicle window glass shown in FIG. FIG. 3 is a diagram showing the vehicle window glass shown in FIG. 1 attached to a vehicle body.

Note that, as a matter of course, the right-handed xyz coordinates shown in FIG. 1 and other drawings are for convenience in explaining the positional relationships of the components. Usually, the positive direction of the z-axis is vertically upward, and the xy plane is a horizontal plane, which is common among the drawings.

As shown in FIG. 1, a vehicle window glass 10 includes a glass plate 1 and a resin molding 2 provided at the peripheral edge of the glass plate 1. The glass plate 1 and the resin molding 2 are integrally molded. Such vehicle window glass is also referred to as MAW (Module Assy Window: registered trademark). The vehicle window glass 10 according to the present embodiment is a vehicle window glass used as a fixed window of a vehicle, and is suitably used, for example, as a fixed window such as a front bench glass or a rear quarter glass of an automobile. The vehicle window glass 10 further includes a metal member 3. The metal member 3 is placed on the inside of the resin molding 2 when the vehicle window glass 10 is attached to the vehicle. The metal member 3 has higher rigidity than the resin molding 2. Note that the body can be exemplified as the part of the vehicle to which the vehicle window glass 10 is attached.

In the vehicle window glass 10 shown in FIG. 1, the glass plate 1 is formed into a substantially rectangular shape (trapezoidal shape) in plan view. However, the shape of the glass plate 1 is not limited to a substantially square shape, but may be a substantially triangular shape. The glass plate 1 may be made of inorganic glass or organic glass. As the inorganic glass, for example, soda lime glass, aluminosilicate glass, borosilicate glass, alkali-free glass, quartz glass, etc. can be used without particular limitation. Among these, soda lime glass is particularly preferred from the viewpoint of manufacturing cost and moldability. The method of forming the glass plate 1 is not particularly limited. For example, in the case of inorganic glass, a glass plate formed by a float method or the like is preferable.
When the glass plate 1 is inorganic glass, the glass plate 1 may be either untempered glass or tempered glass. Unstrengthened glass is obtained by forming molten glass into a plate shape and slowly cooling it. Tempered glass is obtained by forming a compressive stress layer on the surface of untempered glass, and may be either air-cooled tempered glass or chemically strengthened glass.

When the tempered glass is physically strengthened glass (for example, air-cooled tempered glass), the glass surface and the interior of the glass are The glass surface may be strengthened by creating a compressive stress layer on the glass surface due to the temperature difference between the glass surface and the glass surface. When the tempered glass is chemically strengthened glass, the glass surface may be strengthened by creating compressive stress on the glass surface using an ion exchange method or the like after bending. Further, as the glass plate 1, glass that absorbs ultraviolet rays or infrared rays may be used. The glass plate 1 is preferably transparent, but may be a colored glass plate to the extent that transparency is not impaired.

The glass plate 1 may have a curved shape such that the outside of the vehicle becomes convex when the vehicle window glass 10 is attached to a vehicle. The glass plate 1 may have a single-curved shape that is bent in only one direction, or a double-curved shape that is bent in two directions (for example, a predetermined direction and a direction orthogonal to the predetermined direction). It may have a shape. Gravity forming, press forming, roller forming, etc. are used for bending the glass plate 1. When the glass plate 1 is bent to have a predetermined curvature, the radius of curvature of the glass plate 1 may be 1000 to 100000 mm.

The glass plate 1 may be a single glass plate, but may also be a laminated glass in which two or more glass plates are bonded together via an interlayer film, for example. As an example of the interlayer film of the laminated glass, a known thermoplastic resin film such as polyvinyl butyral (PVB) or ethylene vinyl acetate copolymer resin (EVA) is used. The interlayer film of the laminated glass may be transparent or may be a colored interlayer film. Further, the intermediate film may have two or more layers.

When the glass plate 1 is laminated glass, when the glass plate 1 is attached to a vehicle, the thickness of the glass located on the outside and the thickness of the glass located on the inside may be the same or different. good. When the glass plate 1 is attached to a vehicle, the thickness of the glass located on the outside is preferably 1.0 mm or more and 3.0 mm or less. When the thickness of the outer glass plate is 1.0 mm or more, the strength such as stone chip resistance is sufficient, and when it is 3.0 mm or less, the mass of the laminated glass does not become too large and the fuel efficiency of the vehicle is reduced. This is preferable in this respect. The thickness of the glass plate arranged inside is preferably 0.3 mm or more and 2.3 mm or less. When the thickness of the glass plate located on the inside of the vehicle is 0.3 mm or more, handling properties are good, and when it is 2.3 mm or less, the mass does not become too large. It is preferable that the thickness of the glass located on the outside and the thickness of the glass located on the inside are each 1.8 mm or less, since this allows the glass plate 1 to be both lightweight and sound insulating. In addition, when the thickness of the glass located on the inside is 1.0 mm or less, the glass located on the inside may be chemically strengthened glass. When the glass located inside is chemically strengthened glass, the compressive stress value on the glass surface is preferably 300 MPa or more, and the depth of the compressive stress layer is preferably 2 μm or more.

When the glass plate 1 is a single glass plate, the glass plate 1 is preferably made of air-cooled tempered glass, and in this case, the thickness of the glass plate 1 is preferably 1.0 mm or more and 5.0 mm or less.

Furthermore, when the glass plate 1 is made of organic glass, examples of the material of the organic glass include transparent resins such as polycarbonate or acrylic resin (for example, polymethyl methacrylate).

The glass plate 1 may be provided with a shielding layer 4 on the periphery of the surface on the inside of the vehicle. The shielding layer 4 is formed, for example, by applying and firing a ceramic color paste containing a fusible glass frit containing a black pigment. It is possible to prevent the adhesive applied to the glass plate 1 from deteriorating due to ultraviolet rays. Note that various suitable films may be formed on the main surface of the glass plate 1 from the viewpoint of increasing weather resistance and functionality such as hydrophilicity and water repellency.

The resin molding 2 is provided so as to surround the glass plate 1, for example. Examples of materials for the resin molding 2 include synthetic resins such as polyvinyl chloride (PVC) and thermoplastic elastomer (TPE). The resin molding 2 is provided around the glass plate 1 by mounting the glass plate 1 in a mold having a cavity corresponding to the shape of the mold and injecting the synthetic resin (molten synthetic resin) into the cavity. Good too. Further, a resin molding 2 formed separately from the glass plate 1 may be fitted to the outer periphery of the glass plate 1.

When the resin molding 2 is integrally molded around the glass plate 1 by injection molding, the vehicle window glass 10 is an integrally molded product in which the glass plate 1, the resin molding 2, and the metal member 3 are integrally molded. Alternatively, a separately prepared metal member 3 may be attached to the vehicle window glass 10. In other words, the above-described integrally molded product in which the glass plate 1, the resin molding 2, and the metal member 3 are integrally molded is, for example, the resin molding 2 is integrally molded around the glass plate 1 and the metal member 3 by injection molding. It is what was done.

Note that the shape of the vehicle window glass 10 shown in FIG. 1 is an example, and in this embodiment, the vehicle window glass 10 may have a shape other than that shown in FIG. 1. The vehicle window glass 10 may appropriately include a fixing member 5 for fixing the vehicle window glass 10 to the vehicle body.

As shown in FIG. 2, the resin molding 2 includes a main body 2a and a metal member protection portion 2b. The main body 2a includes the lower end 1a of the glass plate 1. The lower end 2c of the main body 2a preferably has a shape that can be attached to the body of a vehicle. The metal member protection portion 2b is provided closer to the body of the vehicle (here, in the negative y-axis direction) to which the vehicle window glass 10 can be attached than the main body 2a.

The metal member 3 is provided on the resin molding 2 on the vehicle body side (here, in the negative y-axis direction). Since the metal member 3 has higher rigidity than the resin molding 2, it imparts rigidity to the resin molding 2. The metal member 3 includes a main body 3a and a through hole 3b. The through hole 3b is preferably provided on the lower end 1a side of the main body 3a.

The metal member protection portion 2b fills the through hole 3b. That is, as described above, when the resin molding 2, the glass plate 1, and the metal member 3 are integrally molded using injection molding, the injected molten synthetic resin enters the through hole 3b. is filled with the same resin as the resin molding 2. The metal member protection portion 2b covers at least a portion of the metal member 3. The metal member protection portion 2b is provided on the inner side of the vehicle than the metal member 3. Further, the arithmetic mean roughness Ra of the surface of the metal member protection portion 2b is preferably 1 μm or more and 30 μm or less, preferably 10 μm or more and 20 μm or less. The surface of the metal member protection portion 2b, particularly the portion of the metal member protection portion 2b near the through hole 3b, may be roughened by etching, sandblasting, or the like.

Further, the thickness t2b of the metal member protection portion 2b is preferably 1 mm or more, preferably 1.5 mm or more. Further, the thickness t2b of the metal member protection portion 2b is preferably larger than the thickness t3 of the metal member 3. With these, when the resin molding 2 is produced using injection molding, the portion of the mold cavity corresponding to the metal member protection part 2b can be filled, and the metal member protection part 2b can be stably formed. Furthermore, the metal member protection portion 2b can have a sufficient thickness, and the metal member 3 can be protected by the metal member protection portion 2b.

Further, the metal member protection portion 2b preferably covers the periphery of the through hole 3b of the metal member 3. The metal member protection portion 2b preferably covers at least a portion of the edge 3c of the metal member 3. These allow the metal member 3 to be firmly mechanically fixed to the metal member protection portion 2b.

Further, the resin molding 2 may include a plurality of metal member protection parts 2b. The plurality of metal member protection parts 2b are preferably arranged at predetermined intervals on the lower side 10a of the vehicle window glass 10. The example of the resin molding 2 shown in FIG. 1 includes two metal member protection parts 2b. The two metal member protection parts 2b are arranged at a predetermined interval on the lower side 10a of the vehicle window glass 10.

As shown in FIG. 3, when the vehicle window glass 10 is attached to the vehicle body B1, the thickness t2b of the metal member protection portion 2b is preferably larger than the distance L1 between the metal member protection portion 2b and the vehicle body B1. . Specifically, the distance L1 is the distance from the metal member protection portion 2b to a portion of the vehicle body B1 that faces the metal member protection portion 2b. Further, the distance L1 between the metal member protection portion 2b and the vehicle body B1 is preferably 0.3 mm or more and 2 mm or less, preferably 0.8 mm or more and 1.5 mm or less. When the thickness t2b of the metal member protection part 2b is larger than the distance L1, the metal member protection part 2b can ensure a sufficient thickness, and the metal member 3 can be protected by the metal member protection part 2b.

As described above, according to the configuration of the vehicle window glass 10, the metal member protection portion 2b fills the through hole 3b of the metal member 3 and covers at least a portion of the metal member 3. Therefore, even if the vehicle window glass 10 receives external force and the metal member 3 approaches the vehicle body B1, the metal member protection portion 2b protects the metal member 3. Compared to the vehicle window glass 90 shown in FIG. 4, the metal member 3 and the vehicle body B1 are less likely to come into contact with each other. Therefore, contact between the metal member 3 and the vehicle body B1 can be suppressed. Moreover, the adhesive strength between the metal member 3 and the resin molding 2 can be increased by mechanically locking the through hole 3b of the metal member 3, that is, mechanically hardening the metal member protection portion 2b.

Note that the present invention is not limited to the above embodiments, and can be modified as appropriate without departing from the spirit. Further, the present invention may be implemented by appropriately combining the above embodiments and examples thereof.

10 Window glass for vehicle window 10a Lower side 1 Glass plate 1a Lower end 2 Resin molding 2a Main body 2b Metal member protection part 2c Lower end 3 Metal member 3a Main body 3b Through hole 3c Edge 4 Shielding layer 5 Fixing member t2b, t3 Thickness B1 Vehicle body L1 Distance

Claims (10)

glass plate and
a resin molding provided on the peripheral edge of the glass plate,
A vehicle window glass in which the glass plate and the resin molding are integrally molded,
further comprising a metal member having higher rigidity than the resin molding,
The metal member is placed on the inside of the resin molding when the vehicle window glass is attached to the vehicle,
The metal member has a through hole,
The resin molding includes a metal member protection portion that fills the through hole of the metal member and covers at least a portion of the metal member.
Window glass for vehicle windows. The thickness of the metal member protection part is 1 mm or more,
The vehicle window glass according to claim 1, characterized in that: The resin molding includes a plurality of the metal member protection parts,
The metal member protection parts are arranged at a predetermined interval on the lower side of the vehicle window glass.
The vehicle window glass according to claim 1 or 2, characterized in that: The arithmetic mean roughness Ra of the surface of the metal member protection portion is 1 to 30 μm.
The vehicle window glass according to any one of claims 1 to 3, characterized in that: The thickness of the metal member protection portion is greater than the thickness of the metal member.
The vehicle window glass according to any one of claims 1 to 4, characterized in that: When the vehicle window glass is attached to the vehicle,
The thickness of the metal member protection portion is greater than the distance between the metal member protection portion and the vehicle.
The vehicle window glass according to any one of claims 1 to 5, characterized in that: The metal member protection part covers the periphery of the through hole of the metal member,
The vehicle window glass according to any one of claims 1 to 6, characterized in that: The metal member protection portion covers at least a portion of the edge of the metal member.
The vehicle window glass according to any one of claims 1 to 7, characterized in that: In the integrally molded product, the resin molding is integrally molded around the glass plate by injection molding.
The vehicle window glass according to any one of claims 1 to 8, characterized in that: In the integrally molded product, the resin molding is integrally molded around the glass plate and the metal member by injection molding.
The vehicle window glass according to any one of claims 1 to 9, characterized in that:

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