JPH0346566Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a laminated glass with antenna wires,
In particular, at the same time as shortening the lead wire from the antenna wire,
This invention relates to a laminated glass with an antenna wire that prevents the leader wire from breaking by covering the leader wire portion with a resin layer.

[Prior Art] Laminated glass with antenna wires has conventionally been used as windshields, rear glasses, etc. in various vehicles such as passenger cars, and is widely used. In such laminated glass with antenna wires, the enclosed antenna wire and the leader wire that continues integrally with it are made of extremely fine metal wires, so the leader wire itself must be stretched and connected directly to the terminal fitting. This method was not necessarily considered preferable because the longer the fragile leader wire is made, the more likely it is to break due to various factors.

Therefore, in order to prevent the lead wire from the antenna wire from becoming too long, a conductive paste obtained by mixing conductive metal powder such as silver with glass frit is placed on the passenger compartment side of the vehicle. By printing on a glass surface and firing it, a conductive printed zone is fixedly formed in advance, and this printed zone is interposed between the leader wire and the terminal fitting to replace a part of the leader wire. Attempts have already been made to do so. This involves soldering and fixing terminal fittings for attaching conductive wires such as feeder wires and lead wires onto the print band.
This terminal is intended to be electrically connected to the antenna wire via a print band. Therefore, it is possible to make the leader wire relatively short in accordance with the length of the printing zone, and this is highly evaluated in the sense that it can reduce the possibility that the leader wire, which is a fragile thin metal wire, will break. It was hot.

In addition, if a printed band of black or other ceramic paint for concealment is formed around the periphery of an automobile window glass plate, and a conductive silver paste is printed on it, and a terminal fitting is attached on this silver paste, the terminal fitting The disadvantage was that the adhesive strength was low.

[Problems to be solved by the invention] However, even with such conventional technology, the lead wire from the antenna line still has to be led to the print band, and the lead wire in between There was no change in the fact that the wire was left exposed on the end surface of the glass.

Therefore, the lead wire from the exposed antenna wire may be damaged due to external factors such as getting caught on other materials during the work process, or natural factors such as repeated contact at the corner of the glass end surface. There was still a possibility that the wire could become disconnected.

An object of the present invention is to provide a laminated glass with an antenna wire that minimizes the possibility that the lead-out from the antenna wire will be disconnected.

[Means for Solving the Problems] In order to achieve this objective, the present invention has the following configuration.

That is, in the antenna wire-containing laminated glass according to the present invention, a conductive layer is formed by transferring a conductive transfer member to a predetermined position from the end surface of the glass near the end of the antenna wire in the inner glass to the glass surface on the indoor side. One end of this conductive layer is connected to the lead wire from the antenna wire, and the other end is connected to the terminal fitting, and at least a predetermined portion of the conductive layer from the lead wire to the glass surface on the indoor side is covered with a resin layer. There is a compositional feature in what I did.

[Function] Therefore, the conductive layer can be formed on the inner glass surface of the laminated glass relatively easily by transferring the conductive transfer member. In addition, the lead wire from the antenna wire and the conductive layer are protected from the outside by coating a predetermined area with a resin layer, so that the lead wire is not exposed and is protected from the outside, resulting in breakage of the lead wire and peeling of the conductive layer. It is possible to effectively prevent this and enable durable long-term use. In addition, terminal adhesive strength equivalent to or higher than that of conventional conductive prints can be easily obtained, leading to improved productivity.

[Example] Hereinafter, an example of the present invention will be described based on the drawings.

The laminated glass 1 is formed of an outer glass 2 and an inner glass 3 with a laminated interlayer film 4 interposed therebetween forming a sheet-like adhesive layer. The laminated interlayer film 4 is
The antenna wire 5 is formed of a polyvinyl butyral film, a urethane film, etc., and the antenna wire 5 is formed from the outer surface to the inner surface of the interlayer film 4, preferably at the lead-out end 7 of the interlayer film 4. The edges of the membrane 4 are arranged in a predetermined pattern on the outer surface which can be used as a cushioning material. As the antenna wire 5 and the lead-out wire 6 that integrally follows the antenna wire 5, a thin metal wire with high conductivity, such as a copper wire or a nichrome image, is used.

The antenna wire 5 enclosed within the laminated glass 1 is taken out to the outside from the take-out end 7 of the inner glass 3 via a lead wire 6. The take-out end 7 of the inner glass 3 can be connected to the outer glass 2 by cutting out an appropriate side edge such as the lower edge of the inner glass 3 as shown in FIG.
The side edge at an appropriate position such as the notch end face 10 forming the step 8 between the inner glass 3 or the lower edge of the inner glass 3 as shown in FIG. 3 is made shorter than the side edge of the outer glass 2. The leader wire 6 is taken out by positioning it on the side end surface 11 of the inner glass 3 forming the stepped portion 9 in the laminated glass 1. However, in some cases, such stepped portions 8 and 9 may not be provided on the laminated glass 1, and the take-out end 7 may be placed at an appropriate position on the mating end surface 12 of the outer glass 2 and the inner glass 3 shown in FIG. The leader line 6 may be taken out from the antenna line 5 by setting .

On the other hand, the lead wire 6 from the antenna wire 5 is electrically connected to the terminal fitting 13 from the end surface of the laminated glass 1 near the take-out end 7 of the inner glass 3 to a predetermined position on the glass surface that will be located on the indoor side. A conductive layer 14 is formed for this purpose. This conductive layer 14 is made by transferring a dry or wet conductive transfer member made of conductive metal powder such as silver or copper and a conductive adhesive onto a release paper onto a predetermined glass surface, and subjecting it to heat treatment. It is formed by applying it and drying it to make it integrally adhere to the glass surface.

A lead wire 6 from the antenna wire 5 is connected to the conductive layer 1
4, for example, the conductive layer 14 located on the end surface of the inner glass 3 as shown in FIG.
As shown in the figure, it is securely soldered and connected to the conductive layer 14 on the glass surface of the inner glass 3 located on the indoor side.

A terminal fitting 13 to which a conductive wire 17 such as a feeder wire or a lead wire is attached is attached to a conductive layer 14 as shown in the figure.
Even if it is fixed by soldering, or it is a conductive print layer that is previously provided on the glass surface so as to be electrically connected to the conductive layer 14, that is, a conductive metal powder such as silver is attached to the glass frit. A conductive paste mixed with the like may be printed on a glass surface and soldered to a printed layer (not shown) that is baked and then fixed.

In the laminated glass 1, at least from the take-out end 7 of the antenna wire 5 to the conductive layer 14 on the glass surface of the inner glass 3 located on the indoor side, there is a resin layer formed by a curable resin such as silicone sealant. 15 and is isolated from the outside. When a step 8 is formed on the side edge of the laminated glass 1 and serves as the take-out end 7 of the antenna wire 5, a resin layer 15 is formed to fill this step 8, and the step 8 is formed. If there is no resin layer 15, it is desirable to form the resin layer 15 so as to extend from the mating end surface 12 to the glass surface on the indoor side.

Note that an insulating cover 16 made of a suitable insulating material is attached to the mating end surface 12 of the laminated glass 1 including the resin layer 15 and its vicinity to protect and insulate the resin layer 15. is preferred.

Since the antenna wire-containing laminated glass according to the present invention is constructed in this manner, the conductive layer 14 interposed between the lead wire 6 from the antenna wire 5 and the terminal fitting 13 to electrically connect them is It can be formed very easily by simply transferring the conductive transfer member on the release paper to the glass surface. Therefore, there are not many restrictions on the work process for manufacturing the laminated glass 1, so the timing and position on the glass surface of the laminated glass 1 can be relatively freely selected.

Furthermore, due to the presence of the conductive layer 14, the antenna wire 5
The length of the lead wire 6 from the conductive layer 14 can be relatively shortened, and a predetermined area between the lead wire 6 and the conductive layer 14 is covered with a resin layer 15 formed of a curable resin material such as silicone sealant. Since the conductive layer 14 is covered and protected from the outside by being shielded from the outside, it eliminates the possibility of the lead wire 6 consisting of a fragile composite wire forming a ridge line, and also prevents the conductive layer 14 itself from peeling off from the glass surface, especially the glass surface. Peeling of the conductive layer 14 at the corner portion of the end face can be effectively prevented.

The terminal fitting 13 for attaching the conductive wire 17 such as a feeder wire is fixed to the inner glass surface by soldering to the conductive layer 14 or, if a conductive printed layer is provided next to the conductive layer 14, to the printed layer respectively. However, in the case of a printed layer, it is baked and formed integrally with the glass surface, so the terminal fitting 13 is fixed directly to the printed layer rather than directly connected to the conductive layer 14. It is preferable to do so from the viewpoint of preventing falling off.

Note that when the cutout step 8 as shown in FIG.
It is preferable to form the resin layer 15 so as to fill the entire step portion 8 in order to prevent an adverse effect on the step portion 8 and also to eliminate the step difference.

[Effects of the invention] As described above, according to the invention, the conductive layer interposed between the lead wire from the antenna wire and the terminal fitting can be easily formed by simply transferring the conductive transfer member. In addition to significantly improving workability, the presence of the conductive layer prevents the leader wire from becoming elongated, and by forming a resin layer to cover the leader wire, etc., it is effective in preventing breakage of the leader wire. In addition, sufficient terminal adhesion strength can be obtained, and it can be suitably used as antenna glass for windshields, rear windows, and side windows of vehicles such as passenger cars.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention.
The figure is a partially enlarged longitudinal sectional view, Figures 2 and 3 are partially omitted perspective views showing different embodiments in which a step is formed on laminated glass, and Figure 4 is a partially enlarged perspective view showing a step formed on laminated glass. FIG. 3 is a partially enlarged longitudinal cross-sectional view showing an example in which no such structure is formed. 1...Laminated glass, 2...Outer glass, 3...
Inner glass, 4...Laminated interlayer film, 5...Antenna wire, 6...Leader line, 7...Output end, 8, 9...
Stepped portion, 10... Notch end surface, 11... Side end surface, 12
... Matching end surface, 13 ... Terminal fitting, 14 ... Conductive layer, 15 ... Resin layer, 16 ... Insulating cover, 1
7... Conductor.

Claims (1)

[Scope of utility model registration request] In a laminated glass with an antenna wire formed by enclosing an antenna wire in a laminated glass formed by interposing an interlayer film between an outer glass and an inner glass, from the glass end surface near the takeout end of the antenna wire in the inner glass. A conductive layer is formed by transferring a conductive transfer member to a predetermined position on the glass surface on the indoor side, and one end of this conductive layer is connected to a lead wire from the antenna wire, and the other end is connected to a terminal fitting. A laminated glass with an antenna wire, characterized in that a predetermined portion of the conductive layer from the leader wire to the glass surface on the indoor side is coated with a resin layer.