JPH0653598B2 - Method for producing double glazing with resin frame material - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for producing a double glazing with a resin frame material,
More specifically, the present invention relates to a method for producing double glazing with a resin frame material, in which a frame material such as a molding or a gasket made of synthetic resin can be integrally formed on the peripheral edge of the double glazing.

[Prior Art] Multi-layered glass in which a spacer is placed between a plurality of glass plates and a hollow layer formed between the glass plates is hermetically sealed is not only a heat insulating property but also a soundproofing property and a dew condensation prevention. Due to its excellent performance, it can be used for construction, vehicles, various devices,
It is widely used as glass for windows and doors for various purposes such as for showcases.

By the way, the double glazing used for the above-mentioned various uses usually has a structure in which a metal frame material is disposed in the peripheral portion of the double glazing so as to be attached to a target opening surface as a counterpart material.
Since the frame material used in this case is composed of many parts, the cost is increased, and not only a lot of trouble is required in assembling the frame material, but also the frame material and the multilayer structure. There is a possibility that water liquid may invade through a gap that is inevitably formed between the glass and the glass, and may impair the above-mentioned various properties that the double-glazing should originally have.

Therefore, the present applicant has proposed the "method for manufacturing a double-glazing window with a frame" disclosed in JP-A-59-138683 to solve the above-mentioned inconvenience.

That is, according to this, the spacers arranged between the plurality of glass plates are expected to have the function of separating the glass plates and the function of reinforcing the frame to be formed. Not only between the glass plates, but also between the glass plates by not only reducing the cost and improving the workability by adopting the structure in which the peripheral end face is projected like a leg. The airtightness of the hollow layer is also improved.

[Problems to be Solved by the Invention] By the way, according to the above-mentioned proposal by the present applicant, the above-mentioned inconvenience observed in the case of the conventional structure using the metal frame material can be surely eliminated. .

However, the integral formation of the frame for the double glazing is performed by the so-called RIM method, and although it is small, the injection pressure of the synthetic resin material into the cavity is about several tens kg / cm ² . It was found that there are adverse effects that cannot be ignored, such as warping or deformation of the spacer exposed to this pressure. It has also been pointed out that the double glazing arranged in the mold may have a shearing force when the synthetic resin material is injected into the cavity, which may cause displacement between the glass plates. .

The present invention has been made in view of the above problems found in the conventional method, and an object thereof is to protect the spacer from external pressure and also to prevent displacement of the glass plates from each other. An object of the present invention is to provide a method for producing a double glazing with a frame material.

[Means for Solving the Problems] The present invention is intended to achieve the above-mentioned object, and is characterized in that the spacers are fixed to the peripheral portions between adjacent glass plates, and The barrier plate is fixed to the peripheral end surface including the exposed surface of the spacer to form the double glazing, and the peripheral portion of the double glazing is placed in the cavity formed by the mold, and then the synthetic resin raw material is placed in the cavity. It is to inject and solidify, and then to demold.

[Operation] Therefore, the injection pressure of the synthetic resin raw material is received through the barrier plate, and the effect of external pressure on the spacer can be effectively prevented. Moreover, since the barrier plate is fixed so as to cover the peripheral end face of the double glazing, the glass plates are positioned with each other via the barrier plate, and by interposing this barrier plate. It is possible to equalize the external pressure applied to the peripheral end surface of the double glazing and prevent the displacement of the glass plate.

Embodiments Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a cross-sectional view showing the mutual relation of members in the present invention. Among them, the double glazing 1 is composed of two or more glass plates 2 and these glass plates 2 are Then, the spacers 3 are fixedly arranged at the peripheral portions between the adjacent glass plates 2 with the adhesive layer 5 interposed therebetween, so that the hollow layer 6 is formed in an airtight manner. In this case, the spacer 3 is preferably made of a metal such as aluminum or steel or a plastic having high rigidity, and the desiccant 4 may be provided in the hollow portion if necessary. . Further, the adhesive layer 5 is necessary not only for fixing the spacers 3 between the glass plates 2 but also for further enhancing the airtightness in the hollow layer 6, and an appropriate adhesive selected from this viewpoint. It is preferably formed using a sealant.

Further, on the peripheral end face of the double glazing 1 thus formed, a barrier plate 7 having a width reaching the peripheral end faces of the glass plates 2 located on both sides is provided with an appropriate adhesive. It is fixedly arranged by way of. According to the illustrated example,
In order to further strengthen the integrity of the resin frame member 8 described later with respect to the double glazing 1, the barrier plate 7 is arranged with a width sufficient to partially cover the end faces of the glass plates 2 located on both sides. However, if necessary, one having a width that covers the entire surface can be used. As for the material of the barrier plate 7, an aluminum plate material or the like formed of a metal material having required characteristics such as pressure resistance and heat resistance can be preferably used.

The multi-layer glass 1 thus formed is arranged with its peripheral portion positioned in a cavity 14 having an appropriate space shape formed by a mold 11 composed of an upper mold 12 and a lower mold 13. The mold 11 used in this case may be a metal mold, or a so-called resin mold made of epoxy resin, polyester resin, or the like. When the mold 11 made of a hard material is used, an elastic material is preliminarily applied to the contact portion with the glass plate 2 in order to prevent the glass plate 2 from being scratched and to maintain the airtightness in the cavity 14. It is preferable to interpose them.

Thus, after arranging the double glazing 1 at a predetermined position of the mold 11, the synthetic resin raw material is injected into the cavity 14 and solidified while being molded through the space shape regulated by the cavity 14. In this case, the injection of the synthetic resin raw material into the cavity 14 is carried out by the so-called RIM method, and the synthetic resin raw material used also comprises two or more components, for example, a reactive synthetic resin such as a polyol and an isocyanate compound. A combination of resin raw materials, a combination of a polymerizable raw material such as caprolactam and a catalyst, and a polymerization catalyst thereof are used. All of these raw materials are preferably liquids, and these liquids may be in the form of a slurry containing a solid such as a filler, and further, various additives are added. May be.

Thus, the composite glass 1 after the synthetic resin raw material injected into the cavity 14 of the mold 11 is solidified, the mold 11 is divided into the upper mold 12 and the lower mold 13 and demolded to obtain the double-glazing 1 The resin frame member 8 can be integrally formed with the peripheral edge portion of the. Examples of the resin frame material 8 obtained in this case include polyurethane resin, epoxy resin, polyester resin, vinyl ester resin, silicone resin, nylon-6, and the like.

Since the present invention is configured in this manner, the impact pressure when injecting the synthetic resin raw material into the cavity 14 is not affected by the external pressure of the spacer 3 by surely receiving the impact pressure by the dam plate 7. Since it is possible to prevent the deformation from occurring, it is possible to stabilize the fixed relationship between the glass plate 2 and the spacer 3 with the adhesive layer 5 interposed therebetween. It is possible to reliably prevent the inflow of water. Moreover, since the barrier plate 7 is fixed so as to cover the peripheral end surface of the double glazing 1, the glass plate 2
Mutual positioning is performed via the dam plate 7, and the external pressure applied to the peripheral end faces of the double glazings 1 can be equalized by interposing the dam plate 7 between the glass plates 2. It is also possible to effectively prevent displacement due to shearing force.

[Effects of the Invention] As described above, according to the present invention, the pressure at the time of injecting the synthetic resin raw material can be received through the dam plate, so that the spacer is not adversely affected by the external pressure. Can be blocked. Moreover, the dam plate is
Since the glass plates are fixed so as to cover the peripheral end face of the double glazing, the glass plates are positioned with each other via the weir plate, and the peripheral end face of the double glazing glass is positioned by interposing the weir plate. Such external pressure can be equalized and the displacement of the glass plate can be prevented.

[Brief description of drawings]

FIG. 1 is an enlarged cross-sectional view of an essential part showing the relationship between members when a double-layer glass is placed in a mold, and FIG. 2 is a state after the synthetic resin raw material is injected into the cavity and solidified, and then released from the mold. FIG. 1 ... Multi-layer glass, 2 ... Glass plate, 3 ... Spacer, 4 ... Desiccant, 5 ... Adhesive layer, 6 ... Hollow layer, 7 ... Dam plate, 8 ... Resin frame material, 11 …… Mold, 12 …… Upper mold, 13 …… Lower mold, 14 …… Cavity

Claims (1)

[Claims] 1. A double-layered glass is formed by fixing a spacer to the peripheral edge portions of adjacent glass plates and fixing a weir plate to the peripheral end surface including the exposed surface of the spacer to form a double-layer glass. After arranging the peripheral portion of the glass in a cavity formed by a mold, a synthetic resin raw material is injected into the cavity to be solidified, and thereafter, the mold is removed from the glass. Production method.