Connection between the side spoiler bracket and the rear window.

By using a combination of fast-curing and strong adhesives, the method addresses the challenge of attaching a side spoiler to the rear window by ensuring a precise and durable bond, accommodating shape variations for a stable attachment.

JP7841335B2Active Publication Date: 2026-04-07AGC INC
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-04-18
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing methods for attaching a side spoiler to a vehicle's rear window lack precision and stability, particularly in ensuring a strong and durable bond between the bracket and the rear window.

Method used

A method involving the use of a combination of two adhesives with different curing times to bond a bracket to the rear window, where a fast-curing adhesive is initially applied and then a stronger adhesive is used to secure the bracket in place, allowing for compensation for shape variations and precise alignment.

Benefits of technology

This method ensures a strong and precise bond between the bracket and the rear window, accommodating shape variations and providing a stable attachment for the side spoiler.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To provide means for accurately bonding a bracket and a rear window prepared for a side spoiler.SOLUTION: A bracket 21 has a base 30 bonded to a surface of a side edge part Mg of a glass Gs. The side edge part Mg and the base 30 are joined by using a combination of at least two types of adhesives. A first adhesive Qc is shorter in hardening time than a second adhesive Sr. The second adhesive Sr is stronger in joining after hardening than the first adhesive Qc. In joining, the bracket 21 is fixed from the outside in a state where the side edge part Mg and the base 30 are brought close to each other with the first and second adhesives Qc and Sr therebetween. Fixing of the bracket 21 from the outside is released after hardening of the first adhesive Qc. Hardening of the second adhesive Sr is advanced while further continuing fixing by the first adhesive Qc.SELECTED DRAWING: Figure 3
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Description

Technical Field

[0001] The present invention relates to the joining of a bracket of a side spoiler and a window.

Background Art

[0002] Patent Document 1 discloses attaching a side spoiler to a vehicle body. The inner member of the side spoiler is locked to the vehicle body. Further, the outer member of the side spoiler is placed over the inner member.

[0003] Patent Document 2 discloses attaching a side spoiler to a back door. A door-side clip is fixed to the outer panel of the vehicle body. On the other hand, a spoiler-side clip is fixed to the side spoiler. The spoiler-side clip is fitted into the door-side clip.

[0004] Patent Document 3 discloses fixing the inner surface of a front windshield (paragraph

[0011] ) and the surface of a camera bracket (paragraph

[0013] ) facing it with two types of adhesives having different curing times. The breakdown of the two types of adhesives consists of an adhesive with a long curing time and high strength and an adhesive with a short curing time and low strength. The latter adhesive is used for so-called temporary fixing. Therefore, the latter adhesive can also be replaced with double-sided tape.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0006] The inventors have worked on attaching a side spoiler to the rear window using a bracket and adhesive. This disclosure provides a means for precisely bonding a bracket prepared for a side spoiler to the rear window. [Means for solving the problem]

[0007] [1] A method for manufacturing a glass with brackets by joining brackets for a side spoiler to the rear window glass of a vehicle, The rear window glass has a side edge portion to which the bracket is attached, The bracket has a base that is bonded to at least one of the surfaces of the side edge portion facing outward and inward of the vehicle. The side edge portion and the base are joined using a combination of at least two adhesives, including a first adhesive and a second adhesive, wherein the first adhesive has a shorter curing time than the second adhesive, and the bond after curing is stronger than that of the first adhesive. When joining, With the side edge portion and the base in contact with each other via the first adhesive and the second adhesive, the bracket is fixed from the outside. After waiting for the first adhesive to harden, the external fixing of the bracket is released, and while continuing to fix it with the first adhesive, the hardening of the second adhesive proceeds. method. [2] The bracket further has a fixing portion for fixing the side spoiler, When fixing the bracket from the outside, the bracket is positioned such that the fixing portion is in a predetermined orientation with respect to the rear window glass, and at this time, a tilt is permitted between the side edge portion and the base. The gap between the side edge portion and the base is filled with the second adhesive and the first adhesive, while the first adhesive is cured and the second adhesive is cured. The method described in [1]. [3] The bracket has a portion that extends longitudinally along the side edge portion, The first bonding areas in the base to which the first adhesive is applied are located at least two locations along the longitudinal direction of the bracket and opposite at least two locations in the vertical direction of the side edge portion. The predetermined orientation of the fixed portion is the orientation of the fixed portion with the longitudinal direction as the axis of rotation. The method described in [2]. [4] Each first bonding area is permitted to have a twisting direction with the longitudinal direction as the axis of rotation, The first adhesive is cured while compensating for the variation in the magnitude of the inclination between the side edge portion and each first adhesive area caused by the direction of the twist with the thickness of the first adhesive. The method described in [3]. [5] The bracket further has a fixing portion for fixing the side spoiler, The base is in contact with the inner surface of the rear window glass at the side edge portion, and the fixing portion protrudes from the side edge of the rear window glass, thereby fixing the bracket. The method described in [1]. [6] The outer surface of the rear window glass at the side edge portion and the portion of the rear window glass in the bracket that extends beyond the side edge are further connected by reinforcement. The method described in [5]. [7] A combination of at least two adhesives, including a third adhesive and a fourth adhesive, is used to join the side edge portion and the reinforcement. Here, the third adhesive has a shorter curing time than the fourth adhesive, and the fourth adhesive has a stronger bond after curing than the third adhesive. The third adhesive has the same or a different composition as the first adhesive. The fourth adhesive has the same or a different composition as the second adhesive. The method described in [6]. [8] The adhesive of the first adhesive is a hot melt adhesive, The adhesive of the aforementioned second adhesive is at least one type of adhesive selected from moisture-curing adhesives, heat-curing adhesives, mixed-reaction adhesives, light-curing adhesives, and anaerobic-curing adhesives. When sandwiching the combination of adhesives between the side edge portion and the base, first apply the second adhesive to either the side edge portion or the base, and then apply the first adhesive, which has been pre-melted by heat, to either the side edge portion or the base. The method described in [1]. [9] A bracketed glass in which a bracket for a side spoiler is attached to the rear window glass of a vehicle, The rear window glass has a side edge portion to which the bracket is attached, The bracket has a base which is bonded to at least one of the outer and inner surfaces of the side edge portion of the vehicle. The side edge portion and the base are joined using a combination of at least two types of adhesives, including a first adhesive and a second adhesive. The first adhesive has a shorter curing time than the second adhesive, and the second adhesive has a stronger bond after curing than the first adhesive. Glass with brackets.

[10] The bracket has a portion that extends longitudinally along the side edge portion, The first bonding areas in the base to which the first adhesive is applied are located at least two in the longitudinal direction of the bracket and opposite at least two in the vertical direction of the side edge portion. [9] Glass with bracket as described.

[11] Each first bonding area is permitted to have a twist direction with the longitudinal direction as the axis of rotation, The variation in inclination between the side edge portion and the first adhesive area, caused by the direction of the twist, is compensated for by the first adhesive.

[10] Glass with bracket as described.

[12] The rear window glass has a joint portion with the window frame of the vehicle, and further has the side edge portion on its side, The bracket further has a fixing portion for fixing the side spoiler, The base contacts the inner surface of the rear window glass at the side edge portion, and the fixing portion protrudes from the side edge portion of the rear window glass, The glass with bracket according to [9].

[13] Further provided is a lean force that connects the outer surface of the rear window glass at the side edge portion and the portion protruding from the side edge of the rear window glass in the bracket, The glass with bracket according to

[12] .

[14] A tailgate provided with a side spoiler, Further provided is a window frame joined to the glass with bracket according to any one of [9] to

[13] , The side spoiler is joined to the bracket, Tailgate.

[15] A vehicle provided with a side spoiler, Further provided is a window frame joined to the glass with bracket according to any one of [9] to

[13] , The side spoiler is joined to the bracket, Vehicle.

Effect of the Invention

[0008] The present disclosure provides a means for accurately bonding a bracket prepared for a side spoiler and a rear window.

Brief Description of the Drawings

[0009] [Figure 1] Perspective view of the rear of the vehicle [Figure 2] Front view of the glass with bracket [Figure 3] Partial cross-sectional view of the glass with bracket [Figure 4]Rear view of the bracket [Figure 5] Cross-sectional view of the joint between the bracket and the glass. [Figure 6] Front view and partial left side view of the glass with brackets. [Figure 7] Front view of glass with brackets [Figure 8] Cross-section of a glass panel with brackets. [Figure 9] Front view of glass with brackets [Figure 10] Cross-section of a glass panel with brackets. [Modes for carrying out the invention]

[0010] <Glass with brackets>

[0011] Figure 1 shows the rear of the vehicle. The vehicle is equipped with a tailgate 17. The tailgate 17 is equipped with a side spoiler 18, glass Gs, and a window frame Fr.

[0012] The side spoiler 18, also called a side fin, is an aerodynamic exterior component. The side spoiler 18 protrudes from the rear ends on both sides of the vehicle toward the rear, and has a shape resembling a fish's tail fin or a ship's rudder. The side spoiler 18 is separate from the rear spoiler 19, which is located on the top of the tailgate 17. However, in one embodiment shown in the figure, they form a single, integrated design with a continuous surface. In an embodiment different from that shown in the figure, the side spoiler 18 is an integrated component with the rear spoiler 19.

[0013] The glass Gs shown in Figure 1 is the rear window glass. The window frame Fr is joined to the glass Gs. The side spoiler 18 is attached to the glass Gs via a bracket. The bracket is hidden by the side spoiler 18. The vehicle does not have to have a tailgate 17. The glass Gs may be directly attached to a window frame formed in the vehicle body.

[0014] Figure 2 shows the bracketed glass 20 viewed from the front. In this embodiment, the term "front" refers to the direction that is the rear of the vehicle when the bracketed glass is installed in the vehicle, as shown in Figure 1. The bracketed glass 20 is manufactured by joining the bracket 21 to the glass Gs. The bracketed glass 20 is joined to the window frame Fr of the vehicle.

[0015] The glass Gs shown in Figure 2 is preferably made of soda-lime glass, borosilicate glass, alkali-free glass, or quartz glass, with soda-lime glass being particularly preferred. In one embodiment, the glass Gs is a glass plate obtained by forming molten glass by the float method.

[0016] The glass Gs shown in Figure 2 may be a single sheet of tempered glass. Tempered glass has a compressive stress layer on its surface and a tensile stress layer inside. Glass Gs may be either physically tempered glass or chemically tempered glass. An example of physically tempered glass is air-cooled tempered glass. Air-cooled tempered glass is produced by rapidly cooling only the surface of a uniformly heated glass plate, thereby lowering its temperature below the softening point. The temperature difference between the surface and the interior of the glass plate creates a compressive stress layer on the surface and a tensile stress layer inside. Due to the action of these layers, the surface of the glass becomes less prone to cracking. Chemically tempered glass is produced, for example, by the ion exchange method.

[0017] In one embodiment shown in Figure 2, the glass Gs may be tinted to a degree that ensures the transparency required for a rear window glass. The glass Gs has a thickness sufficient to meet the strength and weight requirements for a rear window glass. The thickness is preferably 0.5 mm to 5.0 mm, and more preferably 1.5 to 3.5 mm.

[0018] The glass Gs shown in Figure 2 may be laminated glass. Laminated glass consists of multiple glass plates and an interlayer that joins the glass plates together. The thicknesses of these glass plates may be the same or different.

[0019] Laminated glass comprises an outer layer of glass located on the outer surface of the vehicle when installed in the vehicle, and an inner layer of glass located on the inner surface of the vehicle. In this embodiment, the term "outer" refers to the direction that is on the outside of the vehicle when the bracketed glass is installed in the vehicle. The term "inner" refers to the direction that is on the inside of the vehicle when the bracketed glass is installed in the vehicle.

[0020] The outer layer glass has sufficient strength to withstand impacts from flying stones. Its thickness is preferably 1.1 mm or more, more preferably 1.8 mm or more. It is preferable to make the outer layer glass 3.0 mm or less thick, preferably 2.8 mm or less, in order to reduce the overall weight of the laminated glass. On the other hand, it is preferable to make the inner layer glass 0.3 mm or more thick to facilitate its handling. It is preferable to make the inner layer glass 2.3 mm or less thick to reduce the overall weight of the laminated glass.

[0021] In one embodiment, the material for the interlayer of laminated glass is a resin composition. The resin composition preferably contains a thermoplastic resin. Examples of thermoplastic resins include plasticized polyvinyl acetal resins, plasticized polyvinyl chloride resins, saturated polyester resins, plasticized saturated polyester resins, polyurethane resins, plasticized polyurethane resins, ethylene-vinyl acetate copolymer resins, ethylene-ethyl acrylate copolymer resins, cycloolefin polymer resins, and ionomer resins. Furthermore, a resin composition containing a modified block copolymer hydride, as described in Patent Document 2, can also be suitably used.

[0022] The interlayer is preferably a resin composition containing a polyvinyl acetal resin. The polyvinyl acetal resin is preferably plasticized by the addition of a plasticizer. Such a resin composition exhibits excellent transparency, weather resistance, strength, adhesion, puncture 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 in the narrow sense obtained by reacting PVA with acetaldehyde, and polyvinyl butyral resin (PVB) obtained by reacting PVA with n-butyraldehyde. PVB can provide a desirable balance of transparency, weather resistance, strength, adhesion, puncture resistance, impact energy absorption, moisture resistance, heat insulation, and sound insulation required for rear window glass. These polyvinyl acetal resins may be used individually or in combination of two or more types.

[0023] The glass Gs shown in Figure 2 may be curved so as to be convex on the outer side. In one embodiment, a glass plate is obtained by flattening molten glass using the float method, and then the glass plate is curved by gravity forming or press forming. This bending is performed after the glass has been softened by heating. The heating temperature of the glass during bending is approximately 550°C to 700°C.

[0024] In the case of laminated glass Gs shown in Figure 2, the outer layer glass, inner layer glass, and other glass plates are bent and formed. The curved glass plates are joined together with an interlayer. The radius of curvature of the glass plates is preferably 1 × 10⁻⁶. 3 ~1 × 10 5 It is mm.

[0025] In one embodiment shown in Figure 2, the glass Gs has a single-bend shape obtained by bending it in either the vertical or horizontal direction. In another embodiment, the glass Gs has a double-bend shape obtained by bending it in both the vertical and horizontal directions. If the glass Gs is laminated glass, the radii of curvature of the outer and inner layers of glass may be the same or different.

[0026] As shown in Figure 2, the bracket 21 is joined to the left and right side edges of the glass Gs. The bracket 21 is attached to the outside of the joint with the window frame Fr. In this embodiment, the portion of the glass Gs further to the sides than the window frame Fr is called the side edge portion Mg. The side edge portion Mg serves as an "adhesive tab" for bonding the bracket 21 to the glass Gs.

[0027] <Adhesion between bracket and glass>

[0028] Figure 3 shows the glass with bracket 20 cut along the line III-III shown in Figure 2. The bracket 21 has a base 30 that is bonded to the surface of the side edge portion Mg. In one embodiment, the base 30 is bonded to the outer surface of the side edge portion Mg with adhesive 24. In another embodiment, the base 30 is bonded to the inner surface of the side edge portion Mg with adhesive 24. The base 30 forms the base portion of the bracket 21.

[0029] As shown in Figure 3, the bracket 21 further has a fixing portion St for securing the side spoiler. In one embodiment shown in the figure, the fixing portion St is a through hole provided in the bracket 21. In one embodiment shown in the figure, the hole of the fixing portion St penetrates the bracket 21 from the inside (Inner) to the outside (Outer) of the vehicle. In one embodiment, the fixing portion St protrudes from the side edge of the glass Gs.

[0030] <How to choose the right adhesive>

[0031] Figure 4 shows the bracketed glass 20 viewed from the rear. In the figure, the bracket 21 is viewed from the rear through the glass Gs. The bracket 21 has a portion that extends longitudinally along the side edge portion Mg. Within the base 30, a first adhesive area 31 and a second adhesive area 32 are arranged along the longitudinal direction of the bracket 21.

[0032] In this embodiment, a combination of at least two types of adhesives is used as the adhesive 24 shown in Figure 3. Therefore, as shown in Figure 4, a fast-curing first adhesive Qc and a strong second adhesive Sr are used to bond the side edge portion Mg and the base 30.

[0033] The first adhesive Qc shown in Figure 4 has a shorter curing time than the second adhesive Sr. The first adhesive Qc is solid at room temperature, for example, 23°C ± 2°C, but melts when heated. The first adhesive Qc, which has liquefied due to melting, returns to a solid state when cooled, thereby bonding the adherends together. Cooling may be performed by air cooling at room temperature, gradually at a temperature higher than room temperature, or rapidly at a temperature lower than room temperature. Examples of the first adhesive Qc include hot melt adhesives containing one or more of the following: ethylene vinyl acetate copolymer, polyamide, synthetic rubber, acrylic, polyurethane, polyolefin, polyester, and silicone. The second adhesive Sr has a stronger bond after curing than the first adhesive Qc. The second adhesive Sr is liquid at room temperature. The second adhesive Sr undergoes its own curing reaction when left in its normal usage state, for example, in the standard atmosphere described below. Examples of the second adhesive Sr include adhesives containing one or more of the following: epoxy-based, urethane-based, silicone-based, modified silicone-based, melamine-based, phenol-based, and acrylic-based adhesives. The second adhesive Sr is classified as, for example, at least one of the following types of adhesives: moisture-curing adhesive, heat-curing adhesive, mixed-reaction adhesive, photocuring adhesive, and anaerobic-curing adhesive.

[0034] The curing time and the strength of the bond after curing may be measured in a standard atmosphere. The standard atmosphere is 23°C ± 2°C and (50 ± 10)% relative humidity, as specified in JIS K 6833-1 and the JIS K 7100 referenced therefrom. Other types of adhesives may also be used for bonding. These adhesives may all begin to cure when two or more components are mixed.

[0035] As shown in Figure 4, the first adhesive Qc is applied to the first bonding area 31. The second adhesive Sr is applied to the second bonding area 32. In one embodiment, the first bonding area 31 and the second bonding area 32 are paired. The second bonding area 32 is wider than the first bonding area 31.

[0036] In one embodiment shown in Figure 4, the first adhesive Qc and the second adhesive Sr are sandwiched between the glass Gs and the bracket 21. The first adhesive Qc is pre-applied to the surface of the first bonding area 31. In another embodiment, the first adhesive Qc is pre-applied to the portion of the side edge Mg that faces the second bonding area 32.

[0037] In one embodiment shown in Figure 4, the second adhesive Sr is pre-applied to the second bonding area 32. In another embodiment, the second adhesive Sr is pre-applied to the portion of the side edge portion Mg opposite to the second bonding area 32. The adhesion by the second adhesive Sr may be further strengthened by pre-applying a primer to at least one of the second bonding area 32 and the portion of the side edge portion Mg opposite to it.

[0038] In one embodiment shown in Figure 4, the first bonding areas 31 are located at least two locations along the longitudinal direction of the bracket 21. These first bonding areas 31 face at least two locations in the side edge portion Mg that are aligned vertically. In one embodiment, the second bonding areas 32 are located at least two locations along the longitudinal direction of the bracket 21. These second bonding areas 32 face at least two locations in the side edge portion Mg that are aligned vertically.

[0039] As shown in Figure 4, the side edge portion Mg and the base 30 are in contact with each other via a combination of adhesives containing the first adhesive Qc and the second adhesive Sr. At this time, the position of the bracket 21 is held from outside the glass Gs. For example, the position of the bracket 21 is held by the jig 26. Furthermore, the position of the glass Gs is held by the jig 27.

[0040] As shown in Figure 4, the bracket 21 is prevented from moving relative to the glass Gs. During the fixing process, the first adhesive Qc and the second adhesive Sr are allowed to cure. After the first adhesive Qc has cured, the external posture support is released. The second adhesive Sr is allowed to cure while the fixing with the first adhesive Qc continues.

[0041] In one embodiment shown in Figure 4, the first adhesive Qc is a hot-melt adhesive. In this case, the second adhesive Sr is first applied to the second bonding area 32, and then the first adhesive Qc, which has been pre-melted by heat, is applied to the first bonding area 31. The first adhesive Qc hardens rapidly by dissipating heat into the surroundings. For this reason, it is preferable to quickly bond the bracket 21 and the glass Gs while maintaining their orientation as soon as the first adhesive Qc is applied.

[0042] <Filling gaps with adhesive and the orientation of the fixed parts>

[0043] The upper part of Figure 5 shows the joint between the bracket 21 and the glass Gs in cross-section A shown in Figure 4. The lower part of Figure 5 shows the joint between the bracket 21 and the glass Gs in cross-section B shown in Figure 4. The bracket 21 is positioned when fixing the bracket 21 from the outside as shown in Figure 4.

[0044] As shown in Figure 5, the fixing portion St has a predetermined orientation relative to the glass Gs due to its positioning. In one embodiment, the predetermined orientation of the fixing portion St is the orientation of the fixing portion St with the longitudinal direction of the bracket 21 as the axis of rotation. In one example, if the fixing portion St is a through hole, the through hole is perpendicular to the surface of the glass Gs.

[0045] As shown in Figure 5, to set the orientation of the fixed portion St to a predetermined orientation, for example, the design length Ds may be set as the distance between the end of the bracket 21 and the inner surface of the glass Gs. A tolerance may also be set for the design length Ds. In the method of this embodiment, the bracket 21 and the glass Gs can be bonded with high precision, so this tolerance can be made smaller.

[0046] As shown in Figure 5, there is variation in the shape of the bracket 21, so when attempting to bring the surface of the side edge portion Mg and the surface of the base 30 into close contact, the orientation of the fixing portion St may not be in the predetermined direction. Therefore, when positioning the bracket 21, it is permissible to create an inclination between the side edge portion Mg and the base 30. This inclination creates a gap between the side edge portion Mg and the base 30. The first adhesive Qc is then cured while filling the gap between the side edge portion Mg and the base 30 with the first adhesive Qc. Furthermore, as shown in Figure 4, the second adhesive Sr is then cured while filling the gap between the side edge portion Mg and the base 30 with the second adhesive Sr.

[0047] As shown in Figure 5, there is variation in the shape of the bracket 21, so each first bonding area 31 is allowed to have a twisting direction with the longitudinal direction of the bracket 21 as the axis of rotation. The first adhesive Qc is cured while compensating for the variation in the size of the gap between the side edge portion Mg and the first bonding area 31 caused by the twisting direction with the thickness of the first adhesive Qc. The second adhesive Sr shown in Figure 4 also slowly cures while compensating for the variation in the size of the gap between the side edge portion Mg and the first bonding area 31. Because of this compensation, the bracket 21 and the glass Gs can be bonded with high precision without being affected by the variation in the shape of the bracket 21.

[0048] <Example 1: Bracket installed on the outside of the rear window glass>

[0049] The left side of Figure 6 shows a front view of the glass 40 with a bracket. The right side shows a magnified view of a portion of it from the left side. The bracket 41 is joined to the outside (outer) of the glass Gs. First, the bracket 41 is fixed to the glass Gs by curing the first adhesive Qc applied to the first bonding area 36. Next, the bracket 41 is strongly bonded to the glass Gs by curing the second adhesive Sr applied to the second bonding area 37.

[0050] A side spoiler is attached to the bracketed glass 40 shown in Figure 6. The side spoiler consists of an inner member Ie and an outer member Oe. The outer member Oe has the aerodynamic design of the side spoiler. First, the inner member Ie is joined to the fixing part St. The fixing part St is located on the glass Gs. In one embodiment, the inner member Ie and the fixing part St have through holes. The inner member Ie and the fixing part St are joined by passing a pin Pn through these through holes. The outer member Oe is placed over the inner member Ie.

[0051] <Example 2: Bracket installed on the inside of the rear window glass>

[0052] Figure 7 shows a front view of the bracketed glass 50. Figure 8 shows cross-sectional views of the bracketed glass 50 at the uppermost AA section, the uppermost BB section, and the central CC section shown in Figure 7. As shown in Figure 7, the bracket 51 is joined to the inside of the glass Gs. First, the bracket 51 is fixed to the glass Gs by curing the fast-curing first adhesive applied to the first bonding area 46. Next, as shown in Figure 8, the bracket 51 is strongly bonded to the glass Gs by curing the strong second adhesive applied to the second bonding area 47.

[0053] The side spoiler is attached to the bracketed glass 50 shown in Figure 8. First, the inner member Ie is joined to each fixing part St in the AA and BB sections. The fixing part St protrudes from the side edge of the glass Gs. In the AA section, a pin Pn passes through the through hole of the inner member Ie and the fixing part St from the outside (Outer). Furthermore, in the BB section, a pin Pn passes through the through hole of the inner member Ie and the fixing part St from the inside (Inner). In the CC section, the inner member Ie and the fixing part St are not joined. The outer member Oe is placed over the inner member Ie which is fixed to the bracket 51.

[0054] <Example 3: Reinforcement of the bracket using reinforcement>

[0055] Figure 9 shows a front view of the bracketed glass 60. Figure 10 shows a cross-sectional view of the bracketed glass 60 at the upper AA section and the lower BB section shown in Figure 9. The bracket 61 is joined to the inside of the glass Gs. First, the bracket 61 is fixed to the glass Gs by curing the fast-curing first adhesive applied to the first bonding area 46. Next, the bracket 61 is strongly bonded to the glass Gs by curing the strong second adhesive applied to the second bonding area 47.

[0056] As shown in Figure 10, the outer surface of the glass Gs in the side edge portion Mg and the portion of the glass Gs protruding from the side edge in the bracket 61 are further connected by reinforcement 62 and reinforcement 63. The reinforcement 62 shown in the upper AA section has a fixing portion St for fixing the side spoiler. The reinforcement 63 shown in the lower BB section does not have a fixing portion for fixing the side spoiler.

[0057] As shown in Figure 9, the reinforcement 62 and reinforcement 63 are bonded to the outer surface of the glass Gs. First, these reinforcement members are fixed to the glass Gs by curing the fast-curing third adhesive applied to the third bonding area 56. The third adhesive has the same or a different composition as the first adhesive.

[0058] Next, as shown in Figure 10, the strong fourth adhesive applied to the fourth bonding area 57 is cured to strongly bond these reinforcements to the glass Gs. The fourth adhesive has the same or a different composition as the second adhesive. Furthermore, as shown in Figure 10, the reinforcement 63 is bonded to the outside (Outer) of the bracket 61. The manner of this bonding is not particularly limited. The third adhesive has a shorter curing time than the fourth adhesive, and the bond after curing is stronger than that of the third adhesive.

[0059] A side spoiler is attached to the bracketed glass 60 shown in Figure 10. First, in section AA, the inner member Ie is joined to the fixing portion St of the bracket 61 and the reinforcement 62. The fixing portion St protrudes from the side edge of the glass Gs. In section AA, a pin Pn passes through the through hole in the inner member Ie and the fixing portion St from the outside (Outer). The pin Pn joins the bracket 61, the reinforcement 62, and the inner member Ie. In section BB, the inner member Ie is not joined to the fixing portion St. The outer member Oe is placed over the inner member Ie which is fixed to the bracket 61. [Explanation of Symbols]

[0060] 17 Tailgate, 18 Side spoiler, 19 Rear spoiler, 20 Glass with bracket, 21 Bracket, 24 Adhesive, 26 Fixture, 27 Fixture, 30 Base, 31 First bonding area, 32 Second bonding area, 36 First bonding area, 37 Second bonding area, 40 Glass with bracket, 41 Bracket, 46 First bonding area, 47 Second bonding area, 50 Glass with bracket, 51 Bracket, 56 Third bonding area, 57 Fourth bonding area, 60 Glass with bracket, 61 Bracket, 62 Reinforcement, 63 Reinforcement, Ds Design length, Fr Window frame, Gs Glass, Ie Inner member, Inner Inside, Mg Side edge portion, Oe Outer member, Outer Outside, Pn Pin, Qc First adhesive, Sr Second adhesive, St Fixing part

Claims

1. A method for manufacturing glass with brackets by joining brackets for side spoilers to the rear window glass of a vehicle, The rear window glass has a side edge portion to which the bracket is attached, The bracket has a base that is bonded to at least one of the surfaces of the side edge portion facing outward and inward of the vehicle. The side edge portion and the base are joined using a combination of at least two types of adhesives, including a first adhesive and a second adhesive, wherein the first adhesive has a shorter curing time than the second adhesive, and the bond after curing is stronger than that of the first adhesive. When joining, With the side edge portion and the base in contact with each other via the first adhesive and the second adhesive, the bracket is fixed from the outside. After waiting for the first adhesive to harden, the external fixing of the bracket is released, and while continuing to fix it with the first adhesive, the hardening of the second adhesive proceeds. method.

2. The bracket further has a fixing portion for fixing the side spoiler, When fixing the bracket from the outside, the bracket is positioned such that the fixing portion is in a predetermined orientation with respect to the rear window glass, and at this time, a tilt is permitted between the side edge portion and the base. The gap between the side edge portion and the base is filled with the second adhesive and the first adhesive, while the first adhesive is cured and the second adhesive is cured. The method according to claim 1.

3. The bracket has a portion that extends longitudinally along the side edge portion, The first bonding areas in the base to which the first adhesive is applied are located at least two locations along the longitudinal direction of the bracket and opposite at least two locations in the vertical direction of the side edge portion. The predetermined orientation of the fixed portion is the orientation of the fixed portion with the longitudinal direction as the axis of rotation. The method according to claim 2.

4. The bracket further has a fixing portion for fixing the side spoiler, The base is in contact with the inner surface of the rear window glass at the side edge portion, and the fixing portion protrudes from the side edge of the rear window glass, thereby fixing the bracket. The method according to claim 1.

5. The outer surface of the rear window glass at the side edge portion and the portion of the rear window glass in the bracket that protrudes from the side edge are further connected by reinforcement. The method according to claim 4.

6. A combination of at least two adhesives, including a third adhesive and a fourth adhesive, is used to join the side edge portion and the reinforcement. Here, the third adhesive has a shorter curing time than the fourth adhesive, and the fourth adhesive has a stronger bond after curing than the third adhesive. The third adhesive has the same or a different composition as the first adhesive. The fourth adhesive has the same or a different composition as the second adhesive. The method according to claim 5.

7. The adhesive of the first adhesive is a hot melt adhesive. The adhesive of the second adhesive is at least one type of adhesive selected from moisture-curing adhesives, heat-curing adhesives, mixed-reaction adhesives, light-curing adhesives, and anaerobic-curing adhesives, and when sandwiching the combination of adhesives between the side edge portion and the base, the second adhesive is first applied to either the side edge portion or the base, and then the first adhesive, which has been pre-melted by heat, is applied to either the side edge portion or the base. The method according to claim 1.

8. A bracketed glass in which a bracket for a side spoiler is attached to the rear window glass of a vehicle, The rear window glass has a side edge portion to which the bracket is attached, The bracket has a base which is bonded to at least one of the outer and inner surfaces of the side edge portion of the vehicle. The side edge portion and the base are joined using a combination of at least two types of adhesives, including a first adhesive and a second adhesive. The first adhesive has a shorter curing time than the second adhesive, and the second adhesive has a stronger bond after curing than the first adhesive. The rear window glass has a joint with the window frame of the vehicle, and further has the side edge portion on its side, The bracket further has a fixing portion for fixing the side spoiler, The base is in contact with the inner surface of the rear window glass at the side edge portion, and the fixing portion protrudes from the side edge portion of the rear window glass. The bracket further comprises a reinforcement connecting the outer surface of the rear window glass at the side edge portion and the portion of the bracket that extends beyond the side edge portion of the rear window glass. Glass with brackets.

9. The bracket has a portion that extends longitudinally along the side edge portion, The first bonding areas in the base to which the first adhesive is applied are located at least two locations aligned in the longitudinal direction of the bracket, and are opposite at least two locations in the vertical direction of the side edge portion. Glass with bracket according to claim 8.

10. A tailgate equipped with side spoilers, The window frame further comprises a glass bracket attached to the glass according to claim 8 or 9, The side spoiler is joined to the bracket. Tailgate.

11. A vehicle equipped with a side spoiler, The window frame further comprises a glass bracket attached to the glass according to claim 8 or 9, The side spoiler is joined to the bracket. vehicle.

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