Window glass for vehicle

Abstract

To provide a window glass for a vehicle that is excellent in designability, in which a resin molding is highly accurately mounted on a glass plate.SOLUTION: A window glass for a vehicle includes a glass plate, and a resin molding mounted on the glass plate, wherein the resin molding has a first resin frame part mounted along a first side of the glass plate, and a second resin frame part which is provided along a part of a second side connected to both ends of the first side, and has a positioning part provided inside of at least one of the first resin frame part and the second resin frame part.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a vehicle window glass. [Background technology]

[0002] BACKGROUND ART Vehicle window glass used as fixed windows such as the windshield and rear glass of vehicles such as automobiles includes, for example, glass plates with resin frames, in which a resin molding (resin frame) made of a resin such as polyvinyl chloride or polyurethane is attached to a glass plate.

[0003] As such a vehicle window glass, for example, a bracket-attached glass has been disclosed in which the base of a bracket for a side spoiler is joined to the side edge portion of the rear window glass of a vehicle using at least two types of adhesive (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2023-158418 Summary of the Invention [Problem to be solved by the invention]

[0005] However, when a resin molding is provided only on one side of a glass plate, such as the bottom or side, there is no resin molding on the other side adjacent to that side of the glass plate, which causes a problem of a gap between the resin molding provided on one side of the glass plate and the side spoiler fixed to a bracket attached to the other side. Because such a gap creates an unattractive appearance, it is important to improve the appearance when using the glass plate as a window glass for a vehicle.

[0006] Furthermore, when a resin molding is provided across one side of a glass plate, depending on the shape of the resin molding, the resin molding is soft and it is difficult to position the corners of the resin molding, which makes it difficult to attach the resin molding to the glass plate with precision. If the resin molding is not attached to the glass plate with precision, the appearance of the vehicle window glass will be poor.

[0007] An object of one aspect of the present invention is to provide a window glass for a vehicle that has an excellent design and in which a resin molding is attached to a glass plate with high precision. [Means for solving the problem]

[0008] One aspect of the present invention is A vehicle window glass comprising a glass plate and a resin molding attached to the glass plate, the resin molding has a first resin frame portion provided along a first side of the glass plate and a second resin frame portion provided along a part of a second side connected to both ends of the first side, The vehicle window glass has a positioning portion provided on the inside of at least one of the first resin frame portion and the second resin frame portion. [Effects of the Invention]

[0009] One aspect of the vehicle window glass according to the present invention is excellent in design and allows the resin molding to be attached to the glass plate with high precision. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a plan view showing an example of a vehicle window glass according to an embodiment of the present invention. [Figure 2] FIG. 2 is an exploded view of the vehicle window glass of FIG. [Figure 3] 2 is a partially enlarged view including the end portions of the bottom side and right side of the glass plate in FIG. 1. FIG. [Figure 4] 2 is a partially enlarged view showing a part of a resin molding attached along the bottom side and left side of the glass plate in FIG. 1. FIG. [Figure 5]1 is an explanatory diagram showing an example of a process of a method for manufacturing a vehicle window glass according to an embodiment of the present invention. [Figure 6] FIG. 6 is an explanatory view showing an example of another step of the method for manufacturing a vehicle window glass according to the embodiment of the present invention. [Figure 7] FIG. 10 is an explanatory diagram showing an example of a state in which there is no resin molding on the side edge of the glass plate. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, embodiments of the present invention will be described in detail. To facilitate understanding of the description, the same components in each drawing will be assigned the same reference numerals, and duplicate descriptions will be omitted. Furthermore, the scale of each member in the drawings may differ from the actual scale. In this specification, unless otherwise specified, "to" indicating a numerical range means that the numerical values ​​before and after it are included as the lower and upper limits. Furthermore, when only the upper limit value in a numerical range expressed by "to" is specified in units, it means that the lower limit value is also in the same units.

[0012] <Vehicle window glass> A vehicle window glass according to an embodiment of the present invention will be described. The vehicle window glass includes automobile window glass such as a windshield (also called a "windshield"), a rear glass (also called a "rear window"), a side glass, a roof glass, and a quarter glass; window glass for transportation vehicles such as trains, locomotives, and bullet trains; window glass for construction vehicles such as bulldozers; and window glass for special vehicles. Of these glass types, the vehicle window glass is preferably glass used as a fixed window in a vehicle or the like.

[0013] Fig. 1 is a plan view showing an example of a vehicle window glass according to this embodiment, and Fig. 2 is an exploded view of the vehicle window glass of Fig. 1. As shown in Fig. 1, the vehicle window glass 1 according to this embodiment includes a glass plate 10 and a resin molding 20.

[0014] In Fig. 1, one of the main surfaces of the vehicle window glass 1 faces the vehicle exterior side, and the other faces the vehicle interior side. In Fig. 1, the front side faces the vehicle interior side, and the back side faces the vehicle exterior side. In Fig. 1, the longitudinal direction of the vehicle window glass 1 corresponds to, for example, the width direction of the vehicle, but may also correspond to the vertical direction of the vehicle.

[0015] [Glass plate] As shown in FIG. 2, the glass plate 10 has a first side (also referred to as a "bottom side") 101, a second side (also referred to as a "side side") 102, and a third side (also referred to as an "upper side") 103.

[0016] The bottom edge 101 is the bottom edge in the longitudinal direction of the glass plate 10 in a plan view. The side edges 102 are connected to both ends of the bottom edge 101, and have one side edge (also referred to as the "left side edge") 102A connected to one end of the bottom edge 101 (the left side in FIG. 1), and the other side edge (also referred to as the "right side edge") 102B connected to the other end of the bottom edge 101 (the right side in FIG. 1). The top edge 103 is the top edge in the longitudinal direction of the glass plate 10 in a plan view, is located opposite the bottom edge 101, and is connected to the other end of the side edge 102.

[0017] The glass sheet 10 has a shape corresponding to the shape of a vehicle window frame, and the shape of the glass sheet 10 in a plan view is not particularly limited. The glass sheet 10 is formed into a substantially trapezoidal shape with a curved bottom edge 101 and a curved top edge 103 in a front view, and may have rounded corners. The plan view refers to a view from one of the opposing main surfaces of the glass sheet 10. The glass sheet 10 may have a curved surface obtained by bending the main surface to have a predetermined curvature. When the glass sheet 10 is curved, it is preferable that the main surface of the glass sheet 10 be convexly curved toward the exterior of the vehicle. The main surface of the glass sheet 10 may be curved as a whole or partially. When the main surface of the glass sheet 10 is curved, the main surface of the glass sheet 10 may be a single-curved shape curved in only one direction, or a complex-curved shape curved in two or more directions. The glass sheet 10 can be bent using, for example, gravity forming, press forming, or roller forming.

[0018] Materials for forming the glass plate 10 include inorganic glass and organic glass, and inorganic glass is preferably used.

[0019] Examples of inorganic glass include soda lime silicate glass, aluminosilicate glass, borate glass, lithium aluminosilicate glass, borosilicate glass, alkali-free glass, and quartz glass. Among these, soda lime glass is preferred from the viewpoints of production cost and formability.

[0020] Examples of organic glass include acrylic resins such as polymethyl methacrylate (PMMA) resins, polycarbonate (PC) resins, polystyrene (PS) resins, polyvinyl chloride (PVC) and polyethylene terephthalate (PET) resins, and cellulose resins, which are generally used as transparent resins.

[0021] There is no particular limitation on the method for forming the glass plate 10. When the glass plate 10 is made of inorganic glass, it is preferable to use, for example, a float method as the method for forming the glass plate.

[0022] When the glass plate 10 is inorganic glass, the glass plate may be either untempered glass or tempered glass. Untempered glass is glass obtained by forming molten glass into a plate and slowly cooling it. The use of untempered glass makes it less likely for mesh-like or spiderweb-like cracks to form on the glass plate 10 even if it is broken upon impact. Tempered glass is glass that has been subjected to a physical tempering process such as air-cooling tempering or a tempering process such as chemical tempering to form a compressive stress layer on the surface. When the tempered glass is physically tempered glass such as air-cooling tempered glass, the surface of the glass plate may be tempered by generating a compressive stress layer on the surface of the glass plate due to the temperature difference between the surface and the interior of the glass plate, such as by rapidly cooling a uniformly heated glass plate from a temperature near its softening point during bending. When the tempered glass is chemically tempered glass, the surface of the glass plate may be tempered by generating compressive stress on the surface of the glass plate using an ion exchange method or the like after bending.

[0023] When the glass plate 10 is made of inorganic glass, the inorganic glass may be glass that absorbs ultraviolet or infrared rays, and is preferably transparent, but may be colored to the extent that transparency is not impaired.

[0024] The glass sheet 10 may be laminated glass. Laminated glass is composed of multiple glass sheets and an interlayer film that bonds the glass sheets together. The glass sheets that make up the laminated glass may have the same thickness or different thicknesses. When installed in a vehicle, the laminated glass has a first glass sheet located on the outer surface of the vehicle, a second glass sheet located on the inner surface of the vehicle, and an interlayer film that bonds the first and second glass sheets together, with the first and second glass sheets being bonded together via the interlayer film. The first and second glass sheets may have the same composition, shape, and thickness or may have different thicknesses.

[0025] The interlayer preferably contains a thermoplastic resin, such as polyvinyl acetal resin, polyvinyl chloride (PVC) resin, saturated polyester resin, polyurethane resin, ethylene-vinyl acetate copolymer (EVA) resin, ethylene-ethyl acrylate copolymer (EEA) resin, cycloolefin polymer (COP) resin, and ionomer resin.

[0026] The interlayer film is preferably a resin composition containing a polyvinyl acetal resin. The polyvinyl acetal resin is preferably plasticized by the addition of a plasticizer. The resin composition has excellent transparency, weather resistance, strength, adhesive strength, penetration resistance, impact energy absorption, moisture resistance, heat insulation, and sound insulation. Examples of polyvinyl acetal resins include polyvinyl formal resin obtained by reacting polyvinyl alcohol (PVA) with formaldehyde, polyvinyl acetal resin obtained by reacting PVA with acetaldehyde, and polyvinyl butyral resin (PVB) obtained by reacting PVA with n-butylaldehyde. PVB can provide a favorable balance of transparency, weather resistance, strength, adhesive strength, penetration resistance, impact energy absorption, moisture resistance, heat insulation, and sound insulation required for rear glass. These polyvinyl acetal resins may be used alone or in combination.

[0027] The thickness of the glass plate 10 is not particularly limited and may be determined appropriately depending on the application and shape of the glass plate 10, etc.

[0028] The glass plate 10 may have a dark, opaque shielding layer (dark ceramic layer) of, for example, black color formed in a strip shape along the periphery on the main surface facing the vehicle interior. The shielding layer has the function of concealing an adhesive layer or the like provided between the glass plate 10 and the vehicle body when the glass plate 10 is attached to the body of a vehicle such as an automobile. The shielding layer is formed, for example, by applying a ceramic paste to the surface of the glass plate 10 and then firing the paste. The thickness and width of the shielding layer are not particularly limited and may be determined appropriately depending on the application, shape, thickness, etc. of the glass plate 10. The glass plate 10 may also have a similar shielding layer on the surface facing the vehicle exterior.

[0029] In addition, a shatterproof film may be attached to the surface of the glass plate 10 to prevent glass fragments from scattering when the glass plate 10 is broken.

[0030] [Resin molding] 1, the resin molding 20 is attached along a part of the bottom edge 101 and the side edge 102 of the glass plate 10 so as to surround the peripheral portion of the bottom edge 101 and the side edge 102 of the glass plate 10. The resin molding 20 is attached to the peripheral portion of the glass plate 10 and is used as a weather strip that seals the gap between the glass plate 10 and the window frame of a vehicle.

[0031] Fig. 3 is a partial enlarged view including the ends of the bottom side 101 and the right side 102B of the glass plate 10 in Fig. 1, and Fig. 4 is a partial enlarged view showing a part of the resin molding attached along the bottom side 101 and the left side 102A of the glass plate 10 in Fig. 1. As shown in Figs. 3 and 4, the resin molding 20 has a first resin frame portion 21, a second resin frame portion 22, and a positioning portion 23, and may further have a notch 24 and a groove portion 25.

[0032] As shown in FIG. 1, the first resin frame portion 21 is provided along the lower edge 101 of the glass plate 10 up to near both ends of the lower edge 101.

[0033] The first resin frame 21 is a resin product formed from resin. The first resin frame 21 may be a molded product formed using any resin, and is preferably a molded product formed by extrusion molding. Note that the first resin frame 21 may also be a molded product formed by injection molding.

[0034] The resin forming the first resin frame portion 21 is preferably a soft resin having a Shore A hardness of 90 or less. The soft resin may have a Shore A hardness of 85 or less, or may have a Shore A hardness of 80 or less. The Shore A hardness refers to the JIS K 6253 Durometer Type A hardness.

[0035] Examples of soft resins having a Shore A hardness of 90 or less include ethylene-propylene-diene rubber (EPDM), foamed resin materials, thermoplastic elastomers, and thermoplastic resins.

[0036] Thermoplastic elastomers include polyolefins, polyesters, and polystyrenes. Examples of suitable elastomers include polyamide-based, polyurethane-based, and polyurethane-based elastomers.

[0037] Thermoplastic resins include polyvinyl chloride (PVC), copolymers of vinyl chloride and ethylene, copolymers of vinyl chloride and vinyl acetate, copolymers of vinyl chloride and propylene, and copolymers of vinyl chloride and ethylene and vinyl acetate, compounded with additives such as plasticizers or other thermoplastic resins. Other thermoplastic resins include chlorinated polyethylene, urethane-modified vinyl chloride resin, urethane resin, polyester resin, liquid crystal polymer, acrylic resin, rubbers such as nitrile rubber (NBR) and styrene-butadiene rubber (SBR), ethylene-vinyl acetate copolymer (EVA), and acrylonitrile-butadiene-styrene copolymer (ABS resin).

[0038] The soft resin may contain a foaming agent. The foaming agent may be a physical foaming agent or a chemical foaming agent. Examples of physical foaming agents include compounds that use the gas generated by vaporization of the foaming agent to foam. Examples of chemical foaming agents include compounds that generate gas through thermal decomposition or chemical reaction. Examples of chemical foaming agents include organic and inorganic foaming agents. Examples of organic chemical foaming agents include azodicarbonamide, N,N'-dinitrosopentamethylenetetramine, and 4,4'-oxybisbenzenesulfonylhydrazide. Among these, azodicarbonamide and N,N'-dinitrosopentamethylenetetramine are preferred due to their low decomposition temperature and high gas generation rate. Examples of inorganic foaming agents include bicarbonates, carbonates, mixtures of bicarbonates and organic salts, and sodium bicarbonate. Among these, sodium bicarbonate is preferred due to its ease of injection molding.

[0039] As shown in FIG. 1, the second resin frame portion 22 is provided at the end of the lower side 101 of the glass plate 10, and is provided from the end of the lower side 101 along part of the side side 102.

[0040] The second resin frame 22 is a resin product formed from resin, similar to the first resin frame 21. The second resin frame 22 may be a molded product formed using any resin, similar to the first resin frame 21, and is preferably a molded product formed by vulcanization molding, since it can be molded integrally with the first resin frame 21. If vulcanization molding is used, it can be vulcanization-bonded to the first resin frame 21.

[0041] The second resin frame portion 22 is preferably formed of a soft resin having a Shore A hardness of 90 or less, similar to the first resin frame portion 21. As the soft resin used for the second resin frame portion 22, ethylene-propylene-diene rubber (EPDM) or a thermoplastic resin can be used, among soft resins, because it can be vulcanized and molded integrally with the first resin frame portion 21.

[0042] 1, the positioning portions 23 are provided on both sides of the resin molding 20 in plan view, and are provided on the second resin frame portion 22. The positioning portions 23 are provided on the inside of the second resin frame portion 22. Note that the resin molding 20 may have the positioning portions 23 provided on the inside of the first resin frame portion 21, or may have the positioning portions 23 provided on the inside of both the first resin frame portion 21 and the second resin frame portion 22. Furthermore, the positioning portions 23 may be provided on the outer periphery of at least one of the first resin frame portion 21 and the second resin frame portion 22 in plan view.

[0043] 4, the positioning portion 23 may be formed so as to have a recessed shape on the inside of the second resin frame portion 22. Note that the positioning portion 23 may also be formed so as to have a protruding shape on the inside of the second resin frame portion 22. From the viewpoint of ease of formation, the positioning portion 23 is preferably formed in a recessed shape.

[0044] The depth, width and length of the positioning portion 23 are not particularly limited as long as the strength of the second resin frame portion 22 is maintained, and may be any appropriate size depending on the size and material of the second resin frame portion 22, etc.

[0045] One positioning portion 23 is provided in the second resin frame portion 22, but multiple positioning portions 23 may be provided in at least one of the first resin frame portion 21 and the second resin frame portion 22. The more positioning portions 23 there are, the easier it is to fix the resin molding 20 to a jig used to attach the resin molding 20 to the glass plate 10, and the easier it is to increase the accuracy of positioning the glass plate 10 and the resin molding 20. On the other hand, if there is only one positioning portion 23, it is easier to suppress increases in manufacturing costs for the resin molding 20 and the jig used to attach the resin molding 20 to the glass plate 10. Therefore, it is preferable to provide one positioning portion 23 in each of the second resin frame portions 22 provided at both ends of the first resin frame portion 21.

[0046] As shown in FIG. 4, the notches 24 are provided on the surfaces of the first resin frame portion 21 and the second resin frame portion 22 of the resin molding 20 opposite the installation surface 201 of the glass plate 10. As shown in FIG. 3, the notches 24 are formed inside the first resin frame portion 21 and the second resin frame portion 22 so as not to overlap the positioning portions 23 in a plan view. The width of the notches 24 is preferably formed to decrease as it approaches the positioning portions 23. This makes it easy to form the positioning portions 23 inside the second resin frame portion 22. Furthermore, the notches 24 function as an outlet for gas when the second resin frame portion 22 is formed by vulcanization molding on the first resin frame portion 21, and therefore the second resin frame portion 22 can be formed with a good yield while suppressing deformation of the second resin frame portion 22.

[0047] The grooves 25 are provided on the surface of the second resin frame 22 opposite the installation surface 201 on which the glass plate 10 is placed, and extend from near the positioning portions 23 toward the side surface of the second resin frame 22, opening at the side surface of the second resin frame 22. The grooves 25 function as outlets for gas when the second resin frame 22 is formed by vulcanization molding on the first resin frame 21, and therefore the second resin frame 22 can be formed with good yield while suppressing deformation of the second resin frame 22.

[0048] The depth and width of the cuts 24 are not particularly limited as long as the strength of the second resin frame portion 22 is maintained, and may be any appropriate size depending on the size and material of the second resin frame portion 22, etc.

[0049] The depth, width and length of the groove portion 25 are not particularly limited as long as the strength of the second resin frame portion 22 is maintained and deformation is suppressed, and may be any appropriate size depending on the size and material of the second resin frame portion 22, etc.

[0050] The width W of the contact portion 201A of the installation surface 201, which comes into contact with the peripheral edge of the glass plate 10, may be set as appropriate. The width W may be, for example, 5 mm to 20 mm, in order to ensure the adhesive strength with the glass plate 10 and to prevent the glass plate 10 from being damaged when the resin molding 20 is attached to the glass plate 10.

[0051] 4, the vehicle window glass 1 has an adhesive layer 30 between the peripheral edge of the glass plate 10 and the contact portion 201A of the resin molding 20. The adhesive layer 30 may be a double-sided tape or an adhesive.

[0052] (Method of manufacturing vehicle window glass) A method for manufacturing a vehicle window glass according to this embodiment will be described. In the method for manufacturing a vehicle window glass according to this embodiment, the first resin frame portion 21 and the second resin frame portion 22 are integrally molded to manufacture the resin molding 20 (a resin molding manufacturing step).

[0053] The first resin frame portion 21 can be formed using a general resin molding method such as injection molding or extrusion molding.

[0054] When the first resin frame 21 is formed by injection molding, for example, the first resin frame 21 is formed by injecting the soft resin into a mold having a cavity corresponding to the shape of the first resin frame 21. Alternatively, the first resin frame 21 may be formed on the plate member by mounting the plate member in a mold having a cavity corresponding to the shape of the first resin frame 21 and injecting the soft resin into the cavity. The first resin frame 21 formed on the plate member is obtained by separating the first resin frame 21.

[0055] Like the first resin frame 21, the second resin frame 22 can be formed using common resin molding methods such as injection molding and extrusion molding. However, when using rubber among the soft resins mentioned above, it is preferable to mold it by vulcanization molding. By molding the second resin frame 22 at the end of the first resin frame 21 using vulcanization molding, the second resin frame 22 can be formed by vulcanization bonding so as to be integrated with the end of the first resin frame 21. In this way, a resin molding 20 is produced in which the first resin frame 21 and the second resin frame 22 are integrally molded.

[0056] Next, as shown in Figure 5, the molded resin molding 20 is fitted into the groove 110 of the jig 100 with the side on which the positioning portion 23 of the resin molding 20 is formed facing downward and the installation surface 201 facing upward, and is then installed on the jig 100 (resin molding installation process).

[0057] The groove portion 110 has a shape corresponding to the resin molding 20 in plan view, and may be approximately the same size as the resin molding 20 or slightly larger than the resin molding 20, as long as it is large enough to accommodate the resin molding 20.

[0058] Groove 110 is provided with protrusions 111 having a shape corresponding to positioning portions 23 of resin molding 20 at positions corresponding to positioning portions 23. When resin molding 20 is fitted into groove 110, fitting protrusions 111 into positioning portions 23 allows resin molding 20 to be easily fitted and fixed to jig 100 without misalignment.

[0059] Next, double-sided tape is applied or adhesive is applied to the lower side 101 of the glass plate 10 and its periphery in a position corresponding to the installation surface 201 of the resin molding 20 to form an adhesive layer 30 (adhesive layer forming step).

[0060] The adhesive layer 30 such as double-sided tape or adhesive may be provided on the installation surface 201 of the resin molding 20 or on both the glass plate 10 and the installation surface 201 of the resin molding 20 .

[0061] Next, as shown in Figure 6, the jig 100 on which the resin molding 20 is installed is moved, and the resin molding 20 is attached to the glass plate 10 via the adhesive layer 30 so that the installation surface 201 of the resin molding 20 is positioned at the lower edge 101 of the glass plate 10 and its surroundings (installation process).

[0062] The resin molding 20 is fixed in the groove 110 of the jig 100 so as not to shift position, so that when attaching the resin molding 20 to the glass plate 10, the installation surface 201 of the resin molding 20 can be easily attached to the bottom edge 101 and side edge 102 of the glass plate 10 so as to conform to the shapes of the bottom edge 101 and side edge 102.

[0063] After the resin molding 20 is attached to the glass plate 10, the jig 100 is removed from the resin molding 20 (separation step), thereby obtaining the vehicle window glass 1 shown in FIG.

[0064] As described above, the vehicle window glass 1 includes the glass plate 10 and the resin molding 20, and the resin molding 20 has a positioning portion 23 on the second resin frame portion 22. The resin molding 20 can be fixed to the jig 100 by positioning the protrusion 111 of the jig 100 at the positioning portion 23, which prevents the resin molding 20 from shifting position when attaching the resin molding 20 to the glass plate 10. This makes it easy to position the corners of the resin molding 20 when attaching the resin molding 20 to the glass plate 10. Therefore, the resin molding 20 can be attached with high precision so that the installation surface 201 of the resin molding 20 conforms to the shapes of the bottom edge 101 and the side edge 102 of the glass plate 10.

[0065] Furthermore, in conventional vehicle window glass, a resin molding is sometimes provided only on one edge, such as the bottom edge or side edge, of the glass plate. For example, as shown in Fig. 7 , when a resin molding 300 is provided only on the bottom edge 101 of a glass plate 10, no resin molding is provided on the side edge 102 of the glass plate, but a side spoiler 310 is provided, which can result in a gap between the resin molding 300 provided on the bottom edge 101 of the glass plate 10 and the side spoiler 310 provided on the side edge 102, resulting in a poor appearance. In contrast, as shown in Fig. 1 , a vehicle window glass 1 has a resin molding 20 provided across from the bottom edge 101 to the side edge 102 of the glass plate 10, which prevents a gap from being formed between the resin molding 20 provided on the bottom edge 101 and the side edge 102 of the glass plate 10 and the side spoiler provided on the side edge 102.

[0066] Therefore, in the vehicle window glass 1, the resin molding 20 provided on the bottom edge 101 and the side edge 102 of the glass sheet 10 can be attached to the glass sheet 10 without creating a gap between the resin molding 20 and the side spoiler provided on the side edge 102, resulting in excellent design and allowing the resin molding 20 to be attached to the glass sheet 10 with high precision. Therefore, the vehicle window glass 1 has a good external appearance, and it is possible to provide a vehicle window glass with excellent appearance.

[0067] In the vehicle window glass 1, the positioning portion 23 is preferably formed to have a recessed shape. A recessed positioning portion 23 is easier to form in the resin molding 20 than a protruding portion. Furthermore, if the positioning portion 23 has a protruding portion shape, a groove corresponding to the protruding portion must also be formed in the groove portion 110 of the jig 100, but a protrusion 111 corresponding to the recessed portion is easier to form than a groove corresponding to the protruding portion. Therefore, the vehicle window glass 1 has a structure in which the resin molding 20 having the positioning portion 23 in the shape of a recessed portion is easily attached to the glass plate 10 with high precision.

[0068] In the vehicle window glass 1, it is preferable that the bottom edge 101 of the glass plate 10 is the longitudinal edge in a plan view of the glass plate 10. This allows the vehicle window glass 1 to have the resin molding 20 attached with high precision from the bottom edge 101 to the side edge 102 of the glass plate 10.

[0069] The vehicle window glass 1 preferably has the positioning portion 23 provided in the second resin frame portion 22. This allows the vehicle window glass 1 to stably attach the resin molding 20 to the glass plate 10 with high precision, thereby improving the attachment precision between the glass plate 10 and the resin molding 20 in a more stable manner.

[0070] In the vehicle window glass 1, the resin molding 20 is preferably formed such that the first resin frame portion 21 and the second resin frame portion 22 are integrally formed, and the second resin frame portion 22 is provided along from the bottom edge 101 to a part of the side edge 102 of the glass plate 10. This allows the vehicle window glass 1 to attach the resin molding 20 with high precision from the bottom edge 101 to the side edge 102 of the glass plate 10 while preventing breakage at the interface between the first resin frame portion 21 and the second resin frame portion 22.

[0071] In the vehicle window glass 1, it is preferable that the positioning portions 23 are provided on each of the pair of second resin frame portions 22 in a plan view. As a result, the positioning portions 23 are provided on both sides of the resin molding 20, which further reduces misalignment at both ends of the resin molding 20. This allows for more appropriate positioning of the corners of the resin molding 20 when attaching the resin molding 20 to the glass plate 10. Therefore, the vehicle window glass 1 can ensure that the glass plate 10 and the resin molding 20 are attached with higher precision.

[0072] In the vehicle window glass 1, the second resin frame portion 22 is preferably formed from a soft resin having a Shore A hardness of not more than 90. Because the second resin frame portion 22 is soft, it is possible to attach the resin molding 20 from the bottom edge 101 to the side edge 102 of the glass plate 10 with high precision while minimizing the effect of the shape of the edge of the bottom edge 101 of the glass plate 10.

[0073] In the vehicle window glass 1, the soft resin preferably contains a foaming agent, which gives the second resin frame portion 22 high flexibility, thereby enabling the resin molding 20 to be attached with high precision from the bottom edge 101 to the side edge 102 of the glass plate 10 while more reliably reducing the influence of the shape of the vicinity of the edge of the bottom edge 101 of the glass plate 10.

[0074] In the vehicle window glass 1, the resin molding 20 has a notch 24 on the surface opposite to the installation surface 201 of the glass plate 10, and it is preferable that the width of the notch 24 becomes smaller as it approaches the positioning portion 23. This makes it possible to stably form the positioning portion 23 in the second resin frame portion 22, even when the positioning portion 23 is formed in the shape of a recess, and also prevents a decrease in the strength of the second resin frame portion 22.

[0075] In the vehicle window glass 1, the second resin frame portion 22 preferably has a groove portion 25 on the surface opposite to the installation surface 201 of the glass plate 10. As a result, when the second resin frame portion 22 is formed by vulcanization molding, the groove portion 25 serves as a gas escape route, so that the second resin frame portion 22 can be integrally formed by vulcanization bonding with the first resin frame portion 21 while stabilizing any shape of the second resin frame portion 22. Therefore, in the vehicle window glass 1, the resin molding 20 can be attached accurately and stably from the bottom edge 101 to the side edge 102 of the glass plate 10.

[0076] In the vehicle window glass 1, the second resin frame portion 22 is preferably a molded product formed by vulcanization molding. This allows the second resin frame portion 22 to be formed integrally with the first resin frame portion 21 by vulcanization bonding. Therefore, the vehicle window glass 1 can maintain the state in which the resin molding 20 is attached to the glass plate 10 while preventing separation between the first resin frame portion 21 and the second resin frame portion 22.

[0077] In the vehicle window glass 1, the first resin frame portion 21 is preferably a molded product formed by extrusion molding. This allows the first resin frame portion 21 to be easily formed, and therefore the vehicle window glass 1 can be easily formed in a state where the resin molding 20 is attached to the glass plate 10.

[0078] As described above, the vehicle window glass 1 does not create a gap between the resin molding 20 provided on the bottom edge 101 and side edge 102 of the glass sheet 10 and the side spoiler provided on the side edge 102, and the resin molding 20 and the glass sheet 10 are attached with high precision, resulting in excellent design. Therefore, the vehicle window glass 1 is suitable for vehicles equipped with glass sheets that are difficult to attach and detach, such as fixed windows. The vehicle window glass 1 may be used for automotive window glass such as windshields, rear windows, side windows, roof windows, and quarter windows; window glass for transportation vehicles such as trains, locomotives, and bullet trains; window glass for construction vehicles such as bulldozers; and window glass for special vehicles. In particular, the vehicle laminated glass according to this embodiment is suitable for use in windshields, rear windows, and quarter windows of vehicles that are difficult to attach and detach.

[0079] Although the embodiments have been described above, they are presented as examples and the present invention is not limited to the above embodiments. The above embodiments can be implemented in various other forms, and various combinations, omissions, substitutions, modifications, etc. can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, and are also included in the scope of the invention and its equivalents as set forth in the claims. [Explanation of symbols]

[0080] 1. Vehicle window glass 10 Glass Plate 20 Resin molding 21 First resin frame part 22 Second resin frame part 23 Positioning part 24 Cutting 25 Groove 101 First side (bottom side) 102 Second Side (Side) 102A left side 102B right side 103 Third Side (Top Side)

Claims

1. A vehicle window glass comprising a glass plate and a resin molding attached to the glass plate, the resin molding has a first resin frame portion provided along a first side of the glass plate and a second resin frame portion provided along a part of a second side connected to both ends of the first side, A vehicle window glass, comprising: a positioning portion provided on an inner side of at least one of the first resin frame portion and the second resin frame portion.

2. The vehicle window glass according to claim 1 , wherein the positioning portion has a shape of a recess or a protrusion.

3. The vehicle window glass according to claim 1 or 2, wherein the first side is a side in a longitudinal direction of the glass plate in a plan view.

4. The vehicle window glass according to claim 1 or 2, wherein the positioning portion is provided in the second resin frame portion.

5. The vehicle window glass according to claim 4 , wherein the positioning portions are provided on each of the pair of second resin frame portions in a plan view.

6. the resin molding is formed such that the first resin frame portion and the second resin frame portion are integrally formed, The vehicle window glass according to claim 1 or 2, wherein the second resin frame portion is provided along a portion of the second side from the first side.

7. 3. The vehicle window glass according to claim 1, wherein the second resin frame portion is formed of a soft resin having a Shore A hardness of 90 or less.

8. The vehicle window glass according to claim 7 , wherein the soft resin contains a foaming agent.

9. the resin molding has a notch on a surface opposite to a surface on which the glass plate is installed, 3. The vehicle window glass according to claim 1, wherein the width of the cut decreases toward the positioning portion.

10. The vehicle window glass according to claim 1 or 2, wherein the second resin frame portion has a groove portion on a surface opposite to a surface on which the glass plate is installed.

11. The vehicle window glass according to claim 1 or 2, wherein the second resin frame portion is a molded product formed by vulcanization molding.

12. The vehicle window glass according to claim 1 or 2, wherein the glass plate is a laminated glass.

13. 3. The vehicle window glass according to claim 1, wherein the glass plate is a rear glass of a vehicle.

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