Vehicle window glass

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

[Technical Field]

[0001] FIELD OF THE DISCLOSURE The present disclosure relates to glazings for vehicle windows. [Background technology]

[0002] The glass with molding disclosed in Patent Document 1 comprises 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. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-188967 Summary of the Invention [Problem to be solved by the invention]

[0004] The inventors of the present application have discovered the following problems. When such molding-equipped glass is installed in a vehicle, the metal molding, which is a metal component, may come into contact with the vehicle body, potentially causing scratches on the vehicle or the metal component. Such scratches may then cause rust on the vehicle or the metal component. Furthermore, there is room for further consideration regarding the adhesive strength between the metal molding and the resin molding.

[0005] The present disclosure has been made in consideration of the above-mentioned problems, and provides a window glass for a vehicle window that can increase the adhesive strength between the metal member and the resin molding while suppressing contact of the metal member with the vehicle. [Means for solving the problem]

[0006] The vehicle window glass according to the present disclosure comprises: A glass plate and a resin molding provided on the peripheral edge of the glass plate, A window glass for a vehicle window, wherein the glass plate and the resin molding are an integrally molded product, Further, a metal member having higher rigidity than the resin molding is provided, the metal member is disposed on the vehicle interior side 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.

[0007] The thickness of the metal member protection portion may be 1 mm or more.

[0008] The resin molding may include a plurality of the metal member protection portions, and the metal member protection portions may be arranged at a predetermined interval on the lower edge of the vehicle window glass.

[0009] The arithmetic mean roughness Ra of the surface of the metal member protection portion may be 1 to 30 μm.

[0010] The thickness of the metal member protection portion may be greater than the thickness of the metal member.

[0011] Furthermore, when the vehicle window glass is attached to the vehicle, the thickness of the metal member protection portion may be greater than the distance between the metal member protection portion and the vehicle.

[0012] The metal member protection portion may cover the periphery of the through hole of the metal member.

[0013] The metal member protection portion may cover at least a part of the edge of the metal member.

[0014] The integrally molded product may be characterized in that the resin molding is integrally molded around the glass plate by injection molding.

[0015] The integrally molded product may be characterized in that the resin molding is integrally molded around the periphery of the glass plate and the metal member by injection molding. [Effects of the Invention]

[0016] According to the present disclosure, it is possible to increase the adhesive strength between the metal member and the resin molding while preventing the metal member from coming into contact with the vehicle. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a front view of an example of a configuration of a window glass for a vehicle window according to an embodiment. [Figure 2] 2 is a cross-sectional view taken along line II-II of a main part of one example of the configuration of a window glass for a vehicle window according to an embodiment. FIG. [Figure 3] 1 is a diagram showing a vehicle window glass according to an embodiment attached to a vehicle body. FIG. [Figure 4] FIG. 1 is a cross-sectional view of a vehicle window glass according to a related art. DETAILED DESCRIPTION OF THE INVENTION

[0018] (Related Technology) Prior to describing specific embodiments to which the present disclosure is applied, a vehicle window pane according to a technique related to the present disclosure will be described with reference to Fig. 4. Fig. 4 is a cross-sectional view of a main part of a vehicle window pane according to a technique related to the present disclosure.

[0019] The vehicle window pane 90 shown in Figure 4 is attached to a vehicle body B9. The vehicle window pane 90 includes glass 91, a resin molding 92, and a metal member 93. The resin molding 92 encompasses a 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 facing the vehicle body B9. An upper portion 93a of the metal member 93 and the vehicle body B9 are disposed with a predetermined distance L9 between them and face each other.

[0020] Here, the vehicle windowpane 90 may be subjected to an external force, causing the upper portion 93a of the metal member 93 to approach the vehicle body B9, which may result in contact between the upper portion 93a of the metal member 93 and the vehicle body B9.

[0021] 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. In addition, the following description and drawings have been simplified as appropriate for clarity of explanation.

[0022] (Embodiment) An embodiment will be described with reference to Figures 1 to 3. Figure 1 is a front view of an example of the configuration of a vehicle window pane according to an embodiment. Figure 2 is a cross-sectional view of a main part of the example of the configuration of the vehicle window pane shown in Figure 1, taken along line II-II. Figure 3 is a view showing the vehicle window pane shown in Figure 1 attached to a vehicle body.

[0023] Naturally, the right-handed xyz coordinate system shown in Figure 1 and other drawings is for the convenience of explaining the positional relationships of the components. Normally, the positive z-axis direction is vertically upward, and the xy plane is the horizontal plane, which is common among the drawings.

[0024] As shown in FIG. 1 , a vehicle window glass 10 comprises a glass plate 1 and a resin molding 2 provided around the periphery of the glass plate 1. The glass plate 1 and the resin molding 2 are an integrally molded product. Such vehicle window glass is also referred to as an MAW (Module Assy Window: registered trademark). The vehicle window glass 10 according to this embodiment is a vehicle window glass used in a fixed window of a vehicle, and is suitably used in fixed windows such as the front bench glass or rear quarter glass of an automobile. The vehicle window glass 10 further comprises a metal member 3. The metal member 3 is disposed on the interior side 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. An example of a part of a vehicle to which the vehicle window glass 10 is attached is the body.

[0025] In the vehicle window glass 10 shown in FIG. 1 , the glass plate 1 is formed into a substantially quadrangular (trapezoidal) shape in plan view. However, the shape of the glass plate 1 is not limited to a substantially quadrangular shape and may be a substantially triangular shape, for example. The glass plate 1 may be inorganic glass or organic glass. Examples of inorganic glass that can be used without particular limitation include soda lime glass, aluminosilicate glass, borosilicate glass, alkali-free glass, and quartz glass. Of these, soda lime glass is particularly preferred from the viewpoints of production cost and formability. The forming method of 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 preferred. When the glass plate 1 is inorganic glass, the glass plate 1 may be either untempered glass or tempered glass. Untempered glass is produced by forming molten glass into a plate shape and slowly cooling it. Tempered glass is produced by forming a compressive stress layer on the surface of untempered glass, and may be either air-cooled tempered glass or chemically tempered glass.

[0026] If the tempered glass is physically tempered glass (e.g., air-cooled tempered glass), the glass surface may be tempered by a procedure other than slow cooling, such as rapidly cooling a uniformly heated glass sheet from a temperature near its softening point during bending, thereby generating a compressive stress layer on the glass surface due to the temperature difference between the glass surface and the interior of the glass. If the tempered glass is chemically tempered glass, the glass surface may be tempered after bending by generating compressive stress on the glass surface using an ion exchange method or the like. Furthermore, glass that absorbs ultraviolet or infrared rays may be used as the glass sheet 1. The glass sheet 1 is preferably transparent, but may also be colored to the extent that transparency is not impaired.

[0027] The glass sheet 1 may have a curved shape such that the vehicle exterior side is convex when the vehicle windowpane 10 is attached to a vehicle. The glass sheet 1 may have a single-bend shape bent in only one direction, or may have a multiple-bend shape bent in two directions (for example, a predetermined direction and a direction perpendicular to the predetermined direction). Gravity forming, press forming, roller forming, or the like is used to bend the glass sheet 1. When the glass sheet 1 is bent to a predetermined curvature, the radius of curvature of the glass sheet 1 may be 1,000 to 100,000 mm.

[0028] The glass plate 1 may be a single glass plate, or may be, for example, laminated glass in which two or more glass plates are bonded together via an interlayer film. The interlayer film of the laminated glass is, for example, a known thermoplastic resin film made of polyvinyl butyral (PVB) or ethylene vinyl acetate copolymer (EVA). The interlayer film of the laminated glass may be transparent or colored. The interlayer film may also be two or more layers.

[0029] When the glass plate 1 is laminated glass, the thickness of the glass located on the outside and the thickness of the glass located on the inside when the glass plate 1 is installed in a vehicle may be the same or different. When the glass plate 1 is installed in 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 glass plate located on the outside is 1.0 mm or more, sufficient strength is obtained for stone chip resistance, etc., and when it is 3.0 mm or less, the mass of the laminated glass is not too large, which is preferable in terms of fuel efficiency of the vehicle. The thickness of the glass plate located on the 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 is good, and when it is 2.3 mm or less, the mass is not too large. It is preferable that the thickness of the glass located on the outside and the glass located on the inside are each 1.8 mm or less, as this allows the glass plate 1 to achieve both weight reduction and sound insulation. Note that 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 on the inside is chemically strengthened glass, it is preferable that the compressive stress value of the glass surface is 300 MPa or more and the depth of the compressive stress layer is 2 μm or more.

[0030] When the glass plate 1 is a single glass plate, the glass plate 1 is preferably an 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.

[0031] When the glass plate 1 is made of organic glass, examples of the material for the organic glass include transparent resins such as polycarbonate and acrylic resins (for example, polymethyl methacrylate).

[0032] The glass plate 1 may have a shielding layer 4 on the periphery of the surface facing the interior 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. This can prevent the adhesive applied to the glass plate 1 from being deteriorated by ultraviolet rays. Note that various appropriate films may be formed on the main surface of the glass plate 1 from the viewpoints of improving weather resistance and functionality such as hydrophilicity and water repellency.

[0033] As an example, the resin molding 2 is provided so as to surround the periphery of the glass plate 1. Examples of materials for the resin molding 2 include synthetic resins such as polyvinyl chloride (PVC) and thermoplastic elastomer (TPE). The resin molding 2 may be provided around the periphery of the glass plate 1 by placing the glass plate 1 in a mold having a cavity corresponding to the shape of the resin molding 2 and injecting the above-mentioned synthetic resin (molten synthetic resin) into the cavity. Alternatively, a resin molding 2 formed separately from the glass plate 1 may be fitted around the outer periphery of the glass plate 1.

[0034] When the resin molding 2 is integrally formed around the glass plate 1 by injection molding, the vehicle window glass 10 may be an integrally molded product in which the glass plate 1, the resin molding 2, and the metal member 3 are integrally molded, or a separately prepared metal member 3 may be attached to the vehicle window glass 10. In other words, the above-mentioned integrally molded product in which the glass plate 1, the resin molding 2, and the metal member 3 are integrally molded is, for example, one in which the resin molding 2 is integrally molded around the periphery of the glass plate 1 and the metal member 3 by injection molding.

[0035] The shape of the vehicle window pane 10 shown in Fig. 1 is one example, and in this embodiment, the vehicle window pane 10 may have a shape other than that shown in Fig. 1. The vehicle window pane 10 may be provided with a fixing member 5 for fixing the vehicle window pane 10 to the vehicle body as appropriate.

[0036] 2, the resin molding 2 includes a main body 2a and a metal member protection portion 2b. The main body 2a encompasses the lower end 1a of the glass plate 1. The lower end 2c of the main body 2a may have a shape that allows it to be attached to the body of a vehicle as appropriate. The metal member protection portion 2b is provided closer to the vehicle body side (here, in the negative y-axis direction) than the main body 2a, where the vehicle windowpane 10 can be attached.

[0037] The metal member 3 is provided on the vehicle body side (here, in the negative y-axis direction) of the resin molding 2. The metal member 3 has higher rigidity than the resin molding 2, and therefore 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.

[0038] 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, thereby filling the through hole 3b 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 closer to the inside of the vehicle than the metal member 3. 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, and more 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.

[0039] Furthermore, the thickness t2b of the metal member protection portion 2b is preferably 1 mm or more, and more preferably 1.5 mm or more. The thickness t2b of the metal member protection portion 2b is preferably greater than the thickness t3 of the metal member 3. As a result, when the resin molding 2 is produced using injection molding, the portion of the mold cavity corresponding to the metal member protection portion 2b can be filled, and the metal member protection portion 2b can be stably formed. Furthermore, the metal member protection portion 2b can be ensured to have a sufficient thickness, and the metal member 3 can be protected by the metal member protection portion 2b.

[0040] Furthermore, 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 part of the edge 3c of the metal member 3. This allows the metal member 3 to be mechanically firmly fixed to the metal member protection portion 2b.

[0041] The resin molding 2 may also include a plurality of metal member protection portions 2b. The plurality of metal member protection portions 2b may be arranged at a predetermined interval along the bottom edge 10a of the vehicle windowpane 10. The example of the resin molding 2 shown in FIG. 1 includes two metal member protection portions 2b. The two metal member protection portions 2b are arranged at a predetermined interval along the bottom edge 10a of the vehicle windowpane 10.

[0042] As shown in Fig. 3, when the vehicle window glass 10 is attached to a vehicle body B1, it is preferable that the thickness t2b of the metal component protection portion 2b be greater than the distance L1 between the metal component protection portion 2b and the vehicle body B1. Specifically, the distance L1 is the distance from the metal component protection portion 2b to a portion of the vehicle body B1 that faces the metal component protection portion 2b. It is also preferable that the distance L1 between the metal component protection portion 2b and the vehicle body B1 be 0.3 mm or greater and 2 mm or less, and preferably 0.8 mm or greater and 1.5 mm or less. When the thickness t2b of the metal component protection portion 2b is greater than the distance L1, the metal component protection portion 2b can have a sufficient thickness, and the metal component 3 can be protected by the metal component protection portion 2b.

[0043] As described above, according to the configuration of the vehicle window pane 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 pane 10 is subjected to an external force and the metal member 3 and the vehicle body B1 come close to each other, the metal member protection portion 2b protects the metal member 3. Compared to the vehicle window pane 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. Furthermore, the metal member protection portion 2b mechanically locks, i.e., mechanically hardens, the through hole 3b of the metal member 3, thereby increasing the adhesive strength between the metal member 3 and the resin molding 2.

[0044] The present invention is not limited to the above-described embodiment, and can be appropriately modified without departing from the spirit and scope of the present invention. Furthermore, the present invention may be implemented by appropriately combining the above-described embodiment and examples thereof. [Explanation of symbols]

[0045] 10. Vehicle window glass 10a bottom edge 1 glass plate 1a Bottom end 2 Resin molding 2a Main unit 2b Metal member protection part 2c bottom edge 3 Metallic parts 3a Main body 3b Through hole 3c Edge 4 Shielding layer 5 Fixing member t2b, t3 thickness B1 vehicle body L1 distance

Claims

1. A glass plate and a resin molding provided on the peripheral edge of the glass plate, A window glass for a vehicle window, wherein the glass plate and the resin molding are an integrally molded product, Further, a metal member having higher rigidity than the resin molding is provided, the metal member has a metal member body and a through hole provided in the metal member body on a lower end side of the glass plate, the resin molding includes a resin molding main body that encompasses a lower end of the glass plate, and a metal member protection portion that fills the through hole and covers at least a portion of the metal member, When the vehicle window glass is attached to a vehicle, the metal member main body is disposed on an inner side of the vehicle than the resin molding main body, and the metal member protection portion is disposed on an inner side of the vehicle than the metal member main body, a thickness of the metal member protection portion at a portion near the through hole is greater than a thickness of the metal member main body at a portion near the through hole; When the vehicle window glass is attached to the vehicle, a thickness of the portion of the metal component protection portion near the through hole is greater than a distance from the metal component protection portion to a portion of the vehicle facing the metal component protection portion. Vehicle window glass.

2. The thickness of the metal member protection portion in the vicinity of the through hole is 1 mm or more.

2. The vehicle window glass according to claim 1.

3. the resin molding includes a plurality of the metal member protection portions, The metal member protection portions are arranged at a predetermined interval on the lower edge of the vehicle window glass.

3. A vehicle window glass according to claim 1 or 2.

4. The arithmetic mean roughness Ra of the surface of the portion of the metal member protection portion near the through hole is 1 to 30 μm.

4. The vehicle window glass according to claim 1.

5. The metal member protection portion covers the periphery of the through hole of the metal member.

5. The vehicle window glass according to claim 1.

6. The metal member protection portion covers at least a part of the edge of the metal member.

6. The vehicle window glass according to claim 1.

7. The integrally molded product is formed by integrally molding the resin molding around the glass plate by injection molding.

7. The vehicle window glass according to claim 1.

8. The integrally molded product is formed by integrally molding the resin molding around the glass plate and the metal member by injection molding. The vehicle window glass according to any one of claims 1 to 7.

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