JPH0734762A - Spacer for double glazing - Google Patents

Abstract

PURPOSE:To promote strength and durability of a spacer by forming synthetic resin containing a drying agent in the shape of a strap having a rectangular section, interlocking a hard material with one side thereof as a unit, and turning the hard material to the outside to provide it between plate glass and plate glass. CONSTITUTION:An organic spacer 1 of butyl rubber, etc., containing a dry agent 3 is formed in the shape of a strap having a rectangular section and, at the same time, a flexible hard spacer 2 formed of metal such as aluminum or hard vinyl chloride, etc., is interlocked with one side thereof as a unit. The hard spacer 2 is turned to the outside to provide the spacer 1 to adhere between plate glass 4 and plate glass 4, moisture absorption from outside is controlled and, at the same time, strength of the spacer 1 is maintained. According to the constitution, durability of the spacer can be promoted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spacer structure for double glazing.

[0002]

2. Description of the Related Art A conventional double-glazing spacer is an extruded aluminum material that is post-processed, or a metal spacer that is formed by punching an aluminum plate material and then roll-forming and welding it, or contains a desiccant. A string-shaped synthetic resin having adhesiveness, that is, an organic spacer or the like is generally used. Therefore, the spacer so far is substantially a simple substance of metal or synthetic resin, and it is combined with other ones as needed at the time of assembling and manufacturing the double glazing.

[0003]

In the case of such a single spacer, in the case of a metal spacer, the molding difficulty of extrusion is high, and since a ventilation hole for a desiccant is provided, thinning is required. Since the cross-sectional area is small, a dedicated extruder is required. On the other hand, spacers made by welding roll-formed plates are not only costly due to the large cost of molds and welding equipment, but also an adhesive agent is required for multiple layers of glass plates, which makes workability easier. Is also bad.

On the other hand, since a synthetic resin spacer containing a desiccant has a hygroscopic property as compared with a metal spacer, when it is used alone, it absorbs moisture from the outside during use and is inferior in durability. There's a problem. Further, since the synthetic resin spacer is soft, it is easily deformed during the manufacturing process or use of the double glazing, and especially when the double glazing becomes large, the central part of each side of the rectangular shape is glass due to its own weight. Since the plate is bent and the spacer is also deformed accordingly, the total thickness of the double glazing may become unstable and the original function as a spacer may be impaired.

[0005]

SUMMARY OF THE INVENTION The present invention provides a spacer for double glazing which can solve these problems. That is, the present invention relates to a synthetic resin organic spacer containing a desiccant and having a rectangular cross section and adhesiveness on both side surfaces, and a hard spacer integrally engaged with the outside of the organic spacer. The hard spacer has a width dimension that separates the glass plate at a predetermined distance, and is flexible enough to accommodate the bending of the organic spacer, and covers the outside of the organic spacer. It is a spacer for double glazing.

According to the present invention, a hard spacer is compounded so as to cover the outer side of the organic spacer having adhesiveness, and the hard spacer is made flexible so that both spacers are integrally bent or bent. In the spacer for double-layer glass that can be formed, the hard spacer suppresses the moisture absorption of the desiccant in the organic spacer from the outside air.

In the present invention, the organic spacer is made of a synthetic resin having adhesiveness such as butyl rubber, polysulfide, silicon, polyurethane, etc., and is formed in a continuous string shape having a rectangular cross section. In addition to being able to bend or bend, it contains a desiccant and continuously absorbs moisture through this spacer, and conventionally known spacers of this kind are widely used.

On the other hand, the hard spacer is made of a metal such as aluminum, steel or stainless steel or a plastic such as hard vinyl chloride or polyester, and these strips are continuously connected to form strips or The band-shaped piece is slit so that it can be bent or bent freely by utilizing these connecting portions or slit portions. Then, in order to reduce the contact area between the double glazing and the outside air and to prevent the permeation of moisture as much as possible, the above-mentioned moisture impermeable material is selected. Further, this hard spacer has a hardness that does not easily deform because it substantially determines the glass plate spacing of the double glazing, and has a predetermined dimensional width. Further, in order to ensure the adhesion with the glass plate by the organic spacer, it is desirable that the width of the hard spacer is slightly smaller than that of the organic spacer.

In the present invention, these spacers are integrated to form one composite spacer. That is,
The rigid spacer is integrally engaged with the outside of the organic spacer. Here, the term "engaged together" means that the end of the hard spacer is bent and mechanically coupled to the outside of the organic spacer by using this part, or the method of bonding by utilizing the adhesiveness of the organic spacer Thus, it means a state in which these two spacers maintain a structurally integrated form. Next, examples of the present invention will be described.

[0010]

EXAMPLE FIG. 1 shows a spacer according to an example of the present invention, in which 1 is an organic spacer made of butyl rubber, which is formed in a string shape having a rectangular cross section, and 2 is an integral part of the outer side of the organic spacer. Rigidly engaged aluminum spacers 3, 3 are desiccants contained in the organic spacers. The organic spacer 1 has an adhesive property, and glass plates can be adhered on both side surfaces thereof.

On the other hand, the hard spacer 2 is formed into a long body by continuously connecting strips 14 obtained by cutting an aluminum strip whose both ends are bent as shown in FIG. It has flexibility by the action of the connecting portion of the piece. In this case, these strips 14 are as close together as possible,
The width of the obtained elongated body is substantially adjusted to the distance for spacing the glass plates of the double glazing. The strip 14 may not be completely separated from the strip, but a part of the strip 14 may be left.

Utilizing the bent portions at both ends of the hard spacer 2 thus formed, the hard spacer 2 is engaged with the outside of the organic spacer 1 to form a composite spacer. At this time, since the organic spacer has adhesiveness, the engagement with the hard spacer is further strengthened. Also,
As shown in FIG. 1, the width of the organic spacer 1 is preferably slightly larger than the width of the hard spacer 2 in this composite state. Thereby, when the glass plate is spaced by this spacer and pressure-bonded from both sides, the adhesion with the glass plate can be ensured and the organic spacer can be deformed to match the width dimension of the hard spacer.

FIG. 2 is an exploded perspective view when assembling a double glazing using the spacer of FIG. Glass plate 4
At the corners, the spacers are bent and attached along the peripheral edge of the glass plate 4. When the spacer is bent, the hard spacer 2 bends together with the organic spacer 1 due to its flexibility and can be continuously erected on the peripheral edge of the glass plate 4, and after the double-layer vitrification, it is shown in FIG. Thus, it acts to cover the outside of the organic spacer.

FIG. 5 shows another embodiment of the hard spacer, in which a slit 5 is formed instead of connecting the strips 14 described above, and flexibility is provided by this slit. It is preferably fine. Further, another simple type of hard spacer is a flat plate 6 having flexibility as shown in FIG. 6 or a flat plate 6 which is formed by forming a groove instead of a slit on the plate surface and partially thinning the plate to facilitate bending. Once formed, it can be adhered to the organic spacer 1 to form a composite spacer.

Although not shown, if a hard spacer is provided on the inside of the organic spacer, that is, the surface facing the hollow interior of the double glazing, if necessary, the design is improved and the interior decoration is made by utilizing this hard spacer. However, it is necessary to provide ventilation holes in the inner hard spacer so that the desiccant in the organic spacer acts on the hollow portion of the double glazing.

[0016]

According to the present invention, since it is a composite spacer in which an organic spacer and a hard spacer are integrated,
The handling at the time of assembling the double glazing is exactly the same as the conventional synthetic resin spacers, and since the distance between the glass plates can be accurately controlled by the width dimension of the hard spacers, the thickness of the double glazing can be made uniform. It is possible to maintain. Further, after the multi-layer vitrification, the outside of the organic spacer is substantially covered with the hard spacer, so that the contact area of the organic spacer with the outside air becomes small, and thus the outside of the desiccant contained in the organic spacer is reduced. It is possible to suppress the absorption of moisture and maintain the function of the desiccant to improve the durability. Furthermore, since the adhesion of the glass plate is sufficiently achieved by the organic spacer, it is possible to form a multi-layer vitrification without the need for other adhesives, and at the same time, the outside of the spacer part is covered with a hard spacer so that it does not become dirty or dirty. Not only can damage be prevented, but the aesthetics are also very good.

[Brief description of drawings]

FIG. 1 is a perspective view of a spacer according to the present invention.

FIG. 2 is a developed perspective view of a double glazing using the spacer of FIG.

3 is a cross-sectional view of the double glazing of FIG.

FIG. 4 is a perspective view of another embodiment of the hard spacer.

FIG. 5 is a perspective view of another embodiment of the hard spacer.

FIG. 6 is a perspective view of a spacer according to another embodiment of the present invention.

Claims (1)

[Claims] 1. A synthetic resin organic spacer containing a desiccant and having a rectangular cross section and adhesiveness on both side surfaces, and a hard spacer integrally engaged with the outside of the organic spacer. The hard spacer has a width dimension that separates the glass plate at a predetermined distance and is flexible enough to cope with the bending of the organic spacer, and covers the outside of the organic spacer. A spacer for double-layer glass characterized by.