JPH0365537A - Production of pair glass with resinous frame - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for manufacturing double-glazed glass with a resin frame material,
More specifically, the present invention relates to a method of manufacturing double-glazed glass with a resin frame material, in which a frame material such as a molding or gasket made of synthetic resin can be integrally formed on the peripheral edge of the double-glazed glass.

[Prior art] Double glazing, which is made by arranging spacers between multiple glass plates and sealing the hollow layer formed between the glass plates, has not only heat insulation performance but also soundproofing performance and prevention of dew condensation. Due to its excellent performance, it is used for construction, vehicles, various equipment,
It is widely used as window glass and door glass for various purposes such as showcases.

Incidentally, the double-glazed glass used for the various uses described above usually has a structure in which it is attached to a target opening surface, which is a mating material, by interposing a metal frame member around its peripheral edge. The frame material used in this case is composed of many parts, which not only increases the cost and requires a lot of effort when assembling it, but also requires a lot of time and effort to assemble it. There was also a risk that water would enter through the gaps that inevitably occur between the glass and the glass, impairing the above-mentioned various performances that double-glazed glass should originally have.

Therefore, the present applicant has attempted to eliminate the above-mentioned inconvenience by proposing a method for manufacturing a double-glazed glass window with an r-frame, which is disclosed in Japanese Unexamined Patent Publication No. 59-138683.

That is, according to this, a spacer placed between multiple glass plates is expected to have the function of spacing the glass plates and the function of reinforcing the frame to be formed. By adopting a leg-like structure that protrudes not only between the glass plates but also from the peripheral edge thereof, it not only reduces costs and improves workability, but also allows the legs to be formed between the glass plates. Efforts were also made to improve the airtightness of the hollow layer.

[Problems to be Solved by the Invention] By the way, according to the above proposal by the present applicant, the above-mentioned disadvantages that were observed in the conventional structure using a metal frame material could be reliably solved. .

However, the integral formation of the frame for double-glazed glass is done by the so-called RIM method, and the injection pressure of the synthetic resin material into the cavity is about 10 kg/cm", although it is small. It was discovered that the spacer exposed to this pressure has a negative effect that cannot be ignored, such as warping and deformation.In addition, the double-glazed glass placed in the mold has a synthetic resin inside the cavity. It has also been pointed out that when the material is injected, shearing force acts, which may cause the glass plates to become misaligned.

The present invention has been made in view of the above-mentioned problems seen in conventional methods, and its purpose is to provide a resin that can protect spacers from external pressure and also prevent misalignment between glass plates. An object of the present invention is to provide a method for manufacturing double-glazed glass with a frame material.

[Means for Solving the Problems] The present invention aims to achieve the above object, and its structural features include fixing a spacer to the peripheral edge between adjacent glass plates, and A weir plate is fixed to the peripheral end surface including the exposed surface of the spacer to form double-glazed glass, and after placing the peripheral edge of this double-glazed glass in a cavity formed by a mold, synthetic resin raw material is placed in this cavity. The process involves injecting and solidifying the material, and then removing it from the mold.

[Function] Therefore, the injection pressure of the synthetic resin raw material is stopped from being received via the weir plate, and the influence of external pressure on the spacer can be effectively prevented. Moreover, since the weir plate is fixed so as to cover the peripheral end surface of the double-glazed glass, the glass plates are positioned with each other through the weir plate, and It is possible to equalize the external pressure applied to the peripheral end surface of the double-glazed glass, and it is also possible to prevent the glass plate from shifting.

[Example] Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a cross-sectional view showing the relationship between members in the present invention. Among them, the double-glazed glass l is composed of two or more glass plates 2, and these glass plates 2 are A spacer 3 is fixedly arranged at the peripheral edge between adjacent glass plates 2 via an adhesive layer 5, thereby forming an airtight hollow layer 6. In this case, it is preferable to use a spacer 3 made of metal such as aluminum or steel, or a highly rigid plastic, and a desiccant 4 may be provided in the hollow part if necessary. . Further, the contact Wff5 is necessary not only to fix the spacer 3 between the glass plates 2, but also to further improve the airtightness within the hollow layer 6.
It is preferable to use an appropriate adhesive or sealant selected from this point of view.

Further, on the peripheral end surface of the double-glazed glass 1 formed in this way, a weir plate 7 formed with a width reaching the peripheral end surfaces of the glass plates 2 located on both sides is coated with an appropriate adhesive. It is fixedly placed by interposing it. In addition, according to the illustrated example,
In order to further strengthen the integrity of the resin frame material 8 to the double-glazed glass l, which will be described later, the weir plate 7 is arranged with a width sufficient to partially cover the end surfaces of the glass plates 2 located on both sides. However, if necessary, it is also possible to use one having a width that covers the entire surface. Further, as for the material of the weir plate 7, a metal material having required characteristics such as pressure resistance and heat resistance, such as an aluminum plate material, can be suitably used.

The double-glazed glass 1 thus formed is placed with its peripheral edge located within a cavity 14 having an appropriate space shape formed by a mold 11 consisting of an upper mold 12 and a lower mold 13. The mold 11 used in this case may be made of metal, or may be a so-called resin mold made of epoxy resin, polyester resin, or the like. In addition, when using the mold 11 made of a hard material, in order to prevent the glass plate 2 from being damaged and to maintain airtightness inside the cavity 14, the contact area with the glass plate 2 must be made of elastic material in advance. Preferably, the material is interposed.

After the double-glazed glass 1 is placed at a predetermined position in the mold 11, the synthetic resin raw material is injected into the cavity 14 and solidified while being molded through the space defined by the cavity 14. In this case, the synthetic resin raw material is injected into the cavity 14 by the so-called RIM method. Those that are a combination of synthetic resin raw materials,
A combination of a polymerizable raw material and its polymerization catalyst, such as caprolactam and a catalyst, is used. All of these raw materials are preferably liquids, and these liquids may be in the form of a slurry containing solids such as fillers, or may be added with various additives. You can.

In this way, the composite glass 1 after solidifying the synthetic resin raw material injected into the cavity 14 of the mold 11 is produced by dividing the mold 11 into the upper mold 12 and the lower mold 13 and removing the mold. The resin frame member 8 can be formed integrally with the peripheral edge of the frame member 8 . The resin frame material 8 obtained in this case is made of polyurethane resin, epoxy resin, polyester resin, vinyl ester resin, silicone resin, nylon-6
Examples include those formed by the following methods.

Since the present invention is configured in this way, the impact pressure when injecting the synthetic resin raw material into the cavity 14 is
By making sure that the weir plate 7 stops this from being received, the spacer 3
By keeping the fixed relationship between the glass plate 2 and the spacer 3 stable through the adhesive layer 5, the hollow layer 6 can be placed outside the influence of external pressure and prevented from deforming. It is possible to reliably prevent the synthetic resin raw material from flowing into the interior. Moreover, since the weir plate 7 is fixed so as to cover the peripheral end surface of the double-glazed glass l, the glass plates 2 are positioned with respect to each other via the weir plate 7,
In addition, by using this weir plate 7, the external pressure applied to the peripheral end surface of the double-glazed glass 1 can be equalized, and positional displacement between the glass plates 2 due to shear force can be effectively prevented. can.

[Effects of the Invention] As described above, according to the present invention, the pressure when injecting the synthetic resin raw material can be stopped through the weir plate, so that the spacer is not adversely affected by external pressure. can be effectively prevented. Moreover, the weir plate is
Since the glass plates are fixed so as to cover the peripheral edge of the double-glazed glass, the glass plates are positioned with each other through the weir plate, and the glass plates are fixed so as to cover the peripheral edge of the double-glazed glass. This external pressure can be equalized and the positional shift of the glass plate can also be prevented.

[Brief explanation of drawings]

Figure 1 is an enlarged cross-sectional view of the main parts showing the relationship between components when double-glazed glass is placed in the mold, and Figure 2 is the state after the synthetic resin raw material is injected into the cavity and solidified and removed from the mold. FIG. 2 is an enlarged sectional view of main parts.

Claims (1)

[Claims] (1) A spacer is fixed to the peripheral edge between adjacent glass plates, and a weir plate is fixed to the peripheral end surface including the exposed surface of this spacer to form double-glazed glass, and the double-glazed glass is A method for manufacturing double-glazed glass with a resin frame material, which comprises placing the peripheral portion in a cavity formed by a mold, injecting a synthetic resin raw material into the cavity and solidifying it, and then removing the mold. .