JPS6225024A - Manufacture of vehicle window - Google Patents

Abstract

PURPOSE:To mold easily the vehicle window excellent in decorative effect, while improving its sealing property by achieving the injection molding for a product after the layer of the adhesive to the heat-activated has been formed on the peripheral edge of a window-glass. CONSTITUTION:The opaque colored layer 7 such as a paint film is formed at the peripheral edge of the rear side of a glass 1, and the layer 8 of the adhesive to be heat-activated is formed on both front and rear sides and the side surface of said outer periphery. The holding part 3a of a retainer 3 is fitted onto a specified position from the upper surface of the adhesive layer 8 with a blot 3b, penetrating said bolt to its rear side. Next, the peripheral edge of the glass 1 is inserted into an injection mold 10, and the mold is clamped. Resin is injected into a cavity 10c to mold a frame 2 on the peripheral edge of the glass 1, and then simultaneously the adhesive layer 8 is activated by the heat of the injected resin, whereby the glass 1 is integrally fixed to the frame 2. A molding 6 is molded by other injection molding, and the outer surface of said molding is arbitrarily decoration-treated by coating, plating or vapor deposition.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for manufacturing a vehicle window, particularly a vehicle window having a frame material at the peripheral edge of the window glass.

[Conventional technology]

FIG. 8 is a side view showing a part of the body of an automobile, and FIG. 9 is a sectional view taken along the line 1--2 of the conventional window disclosed in Japanese Patent Application Laid-Open No. 58-113482. In the drawings, B is a vehicle body, W is an opera window provided on the side of the vehicle, and is composed of a glass 1 and a frame member 2 decorating the periphery thereof. A plurality of retainers 3 made of a rigid material are fixed at predetermined positions on the peripheral edge of the glass 1, and a frame member 2 is integrally formed with a soft synthetic resin so as to cover the peripheral edge of the glass 1 including the retainers 3. It is formed.

The retainer 3 is composed of a holding part 3a made of a metal plate formed in a U-shape so as to hold the glass 1 therebetween, and a bolt 3b welded to one side of the U-shape. It protrudes and can be attached to the panel P.

The frame material 2 includes a decorative portion 2a that covers the surface of the glass 1, a decorative portion 2b that wraps around the panel P side, and a tip of this decorative portion 21).
A lip 2c formed to contact the panel P, a side part 2d covering the periphery of the glass 1, a mounting part 2e covering the b part of the bolt 3, and a recess 2g formed near the lip 2f at the tip thereof are integrally molded. has been done. 2h is on the surface of frame material 2,
A coating layer 4 is an adhesive filled in the recess 2g to give a predetermined color tone.

In the window manufacturing method described above, first, a releasable coating layer 5 is formed on the outer surface of the glass 1 at least on the portions of the frame material 2 where the decorative portions 2a, 2b are to be formed. Next, the clamping portion 3a of the retainer 3 is clamped and fixed to the peripheral edge of the glass 1 from above the coating layer 5. Then, it is set in an injection mold and clamped, and a soft synthetic resin is injected into the cavity to integrally mold the frame material 2 so as to cover the peripheral edge of the glass 1 including the retainer 3. The glass 1 on which the frame material 2 has been formed is taken out from the mold and subjected to an appropriate degreasing treatment, and then a coating layer 2h is formed on the surface of the frame material 2.

The window configured as above should go to pol 1 3 b
is inserted into the hole provided in the panel P and fixed, and also adhered and attached to the panel P using the adhesive 4 filled in the four parts 2g.

[Problem that the invention seeks to solve]

However, in such a conventional vehicle window manufacturing method, since the frame material 2 is formed via the peelable coating layer 5, a minute gap is generated between the frame material 2 and the glass 1. However, there was a problem that the sealing performance was insufficient.

The purpose of this invention is to solve the above-mentioned problems, and to propose a method for easily manufacturing a vehicle window with excellent decorative properties by firmly fixing the frame material and improving sealing performance. It is an object.

[Means for solving problems]

In this invention, a heat-activated adhesive layer is formed on the peripheral edge of a plate-shaped window glass, and the peripheral edge of the window glass on which the adhesive layer is formed is inserted into an injection mold to perform injection molding of synthetic resin. , a method for manufacturing a vehicle window, characterized in that a frame material is formed around the peripheral edge of the window glass, and the adhesive is activated by the heat of the injected resin to integrally fix the window glass and the frame material. be.

[For production]

In the method for manufacturing a vehicle window of the present invention, when the peripheral edge of the window glass on which the heat-activated adhesive layer is formed is inserted into an injection mold and injection molding is performed, the peripheral edge of the window glass is formed by the injected resin. While the frame material is formed, if the injected resin is molten resin, it is heated to maintain the molten state.
In addition, if the injected resin is a reactive resin, the adhesive layer is activated by the reaction heat and the frame material is integrally fixed to the window glass, so the frame material does not peel off from the window glass and has excellent decorative properties. A vehicular window can be obtained.

〔Example〕

Hereinafter, the present invention will be explained based on embodiments shown in the drawings. FIG. 1 is a front view showing an opera window manufactured according to an embodiment of the present invention, FIG. 2 is a side view thereof, and FIG.
-■ sectional view, FIG. 4 is a perspective view showing the manufacturing method, and FIG. 5 is a sectional view of an injection mold. The same reference numerals as in FIGS. 8 and 9 indicate the same or corresponding parts.

The opera window W has a structure in which a frame material 2 is formed around the periphery of the glass, and a molding 6 is fixed to the surface of the frame material 2.The entire opera window W has a constant radius of curvature R (1000 to 30
00mm).

On the periphery of the back side of the glass 1, there is an opaque colored layer 7 such as a paint film.
is formed, and a heat-activated adhesive layer 8 is formed on both the front and back sides of the peripheral edge. A heat-activated adhesive is an adhesive that exhibits adhesive action by being activated by heating, such as a thermosetting adhesive. A plurality of retainers 3 similar to conventional ones are fixed to the peripheral edge of the glass 1 at predetermined positions from the adhesive layer 8 and the retainers 3.
On top of the glass 1, hold the periphery of the glass 1 from both sides.
・Physically formed.

The frame material 2 has a decorative part 2a, a lip 2c,
It has a side portion 2d, a mounting portion 2e, and a lip 2f, and an engagement groove 21 that fits into the molding 6 and a positioning hole 2j are provided on the outer surface, and these are integrally molded from soft synthetic resin. ing. The molding 6 is made of a hard synthetic resin such as ABS so that a positioning boss 6b protrudes from the back side of the decorative main body 6a that fits into the engagement groove 21. It has a decorative treatment. Moldincro is boss 6
b is inserted into the positioning hole 2j for positioning, and is attached to the engagement groove 21 via an adhesive material 9 such as adhesive or double-sided adhesive tape.

As shown in FIG. 4, the method for manufacturing the above-mentioned opera window W is as follows: First, an opaque colored layer 7 such as a paint film is formed on the periphery of the back side of the glass 1, and then heat is applied to both the front and back sides of the outer periphery. An active adhesive layer 8 is formed. Then, the holding portion 3a of the retainer 3 is attached to a predetermined position from above the adhesive layer 8, and the bolt 3b is made to protrude to the back side.

Next, the peripheral edge of the glass 1 is inserted into an injection mold 1-0 as shown in FIG. 5, and the mold is clamped. In this case, the upper mold 10a
The cavity 10c formed between the lower die 10b and the lower die 10b has a shape corresponding to the frame material 2, and this cavity 1.
The peripheral part of the glass 1 with the retainer 3 fixed thereto is inserted into Oc, and the bolt 3b is inserted into the positioning hole 10d to position it. Then, resin is injected into the cavity 10c to form the frame material 2 on the peripheral edge of the glass 1, and the adhesive layer 8 is activated by the heat of the injected resin to integrally fix the glass 1 and the frame material 2. do. When a normal molten resin is used as the resin to be injected, the adhesive layer 8 is activated by heat to maintain its molten state, and in the case of reaction injection molding, the adhesive layer 8 is activated by the heat of reaction between raw materials such as polyol and incyanate. Activate layer 8.

On the other hand, a molding 6 is separately formed by injection molding,
Any decorative treatment such as painting, plating, vapor deposition, etc. is performed on the outer surface. Of course, the main body 6a may be exposed as it is as a decorative surface. The molding 6 thus formed is attached to the engagement groove 21 of the frame material 2 taken out from the mold via the adhesive material 9.

At this time, the boss 6b is inserted into the positioning hole 2. Insert it into j and position it. The above-mentioned molding 6 can be prepared in a plurality of types depending on the decorative treatment, and any one can be attached.

The above opera window W has a mounting part 2e and a lip 2f.
It is used by filling the concave corner formed by the adhesive 4 and adhering it to the panel P, and then inserting the bolt 3b into a mounting hole provided in the panel P to fix it. At this time, lip 2
c and 2f are pressed against the panel P so as to absorb variations in the dimensions of the panel P, and the lip 2f prevents the adhesive 4 from extruding.

In the installed state, the molding 6 has decorative properties through arbitrary decoration treatment, and is fixed to the frame member 2 by the adhesive material 9, so there is no risk of it falling off. Moreover, since the frame material 2 is fixed to the glass 1 by the adhesive layer 8, there is no fear of peeling, etc., and excellent decorative properties are maintained. The colored layer 7 blocks the back surface of the peripheral edge of the glass 1 and provides decoration when viewed from the front side.

FIG. 6 is a cross-sectional view taken along the line -■ in FIG. 1 showing an opera window manufactured according to another embodiment, and FIG. 7 is a cross-sectional view of its molding. In this example, molding 6
A metal film layer 6c is formed on the entire surface by plating or the like, and then a paint film layer 6d is partially formed on the surface. Since such a decorative treatment only needs to be performed on the molding 6, there is no need to immerse the glass 1 and the frame material 2 in the plating solution to have an adverse effect, or to perform extensive masks to prevent this. Decorative processing can be easily performed. The manufacturing method is almost the same as in the previous example.

In the above description, instead of inorganic glass, organic glass such as a transparent synthetic resin plate may be used for glass. Furthermore, the structure, shape, material, etc. of the frame material 2, retainer 3, and molding 6 can be changed.

The decorative treatment etc. of the molding 6 are not limited to those exemplified in the second paragraph. Furthermore, the present invention is applicable not only to opera windows but also to manufacturing windows for other vehicles.

〔Effect of the invention〕

According to the present invention, since injection molding is performed after forming a heat-activated adhesive layer on the peripheral edge of the window glass, the adhesive layer is activated by the heat of the injected resin or reaction heat,
The frame material formed by injection molding can be integrally fixed to the window glass, and the frame material is completely fixed to the window glass, improving sealing performance and making it easy to create highly decorative vehicle windows. can be manufactured.

[Brief explanation of drawings]

Fig. 1 is a front view showing an opera window manufactured according to an embodiment of the present invention, Fig. 2 is a side view thereof, Fig. 3 is a sectional view taken along m-nr, and Fig. 4 is a perspective view showing a manufacturing method. Fifth
The figure is a sectional view of an injection mold, FIG. 6 is a ■-■ sectional view of an opera window manufactured according to another embodiment, FIG. 7 is a sectional view of the molding, and FIG. 8 is a side view of a part of the car body. FIG. 9 is a cross-sectional view taken along line 1-IX of a conventional window. In each figure, the same reference numerals indicate the same or corresponding parts. 1 is glass, 2 is frame material, 3 is retainer, 4 is adhesive, 6
is molding, 7 is colored layer, 8 is adhesive layer, 9 is adhesive material, 10 is injection mold, W is opera window, P
is a panel. Agent Patent Attorney Sei Yanagihara Figure 5 Figure 8 Figure 9

Claims (4)

[Claims] (1) A heat-activated adhesive layer is formed on the peripheral edge of a plate-shaped window glass, and the peripheral edge of the window glass on which the adhesive layer is formed is inserted into an injection mold to perform injection molding of synthetic resin. A method for manufacturing a vehicle window, characterized by forming a frame material around the peripheral edge of the window glass, and activating an adhesive by heat of the injected resin to integrally fix the window glass and the frame material. (2) The manufacturing method according to claim 1, wherein the adhesive layer is formed on an opaque colored layer previously formed on the peripheral edge of the back side of the window glass. (3) The manufacturing method according to claim 1 or 2, wherein the frame material is formed from above a retainer attached to the peripheral edge of the window glass. (4) The manufacturing method according to any one of claims 1 to 3, wherein the resin to be injected is a molten resin or a resin that generates reaction heat.