JPS6234702B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to double glazing, and more particularly, the present invention relates to double glazing, and more particularly, having a stretched film within the double glazing,
Furthermore, the present invention relates to double-glazed glass having a fixture 6 installed therein.

Ever since oil shocks, the issue of energy conservation has been in the spotlight, and measures to reduce energy consumption are progressing in various fields as a means of achieving this goal.

Traditionally, in order to maintain the environment of cold and warm spaces,
Attempts have been made to double the transparent parts (i.e. windows) that exist on the planes that partition the space.
Due to the recent trend toward energy conservation, attempts have even been made to replace such double-glazed windows with triple-paned windows.

Although the double-glazed glass to which the present invention relates has been widely used for this purpose, it has been strongly desired to further improve the heat insulation properties of the double-glazed glass from the viewpoint of energy conservation. This objective can also be achieved by further increasing the number of glass plates, etc., as described above, but this method unnecessarily increases the weight of the glass plates, so it is difficult to use multiple layers. It is also necessary to reinforce the window frame to which the glass is attached, which in turn increases the cost.

In order to avoid such drawbacks, attempts have been made to install a transparent film inside double-glazed glass, but this method has difficulty spreading the transparent film uniformly, and further improvements are desired. There is.

That is, when a transparent film is stretched through a space, pressure deformation or thermal deformation occurs in the transparent sheet due to the temperature difference, causing the transparent sheet to expand and contract. When the transparent film stretches, it becomes distorted within the multilayer glass, causing discomfort when looking at the outside scenery through the window.

However, the inventors have discovered that by installing an elastic stretchable member and using its restoring force to absorb the expansion and contraction of the transparent film, the transparent film does not become distorted and a good double-glazed glass can be obtained. Ta.

In the production of such double-glazed glass, it is possible to tighten and fix the entire transparent plate from the outside until the sealant solidifies, but on the other hand, it is necessary to tighten and fix the jig 3 integrally. I found it useful. If the sealing material is fixed by tightening the jig 3, the fixture tightening the jig 3 will remain within the finished double-glazed glass product.

Therefore, the present invention includes (a) a plurality of transparent plates 1 that face each other with a space between them; (b) a sealing member 2 that is located between the transparent plates 1 and seals the air between the transparent plates 1 in the periphery thereof; (c) Inside the sealing member 2, a jig 3 divided into a plurality of parts having the same or substantially the same thickness as the interval between the opposing transparent plates 1, and a fixture 6 for integrally tightening the jig 3; ( d) a transparent film 4 stretched over substantially the entire area between the transparent plates 1; and (e) an elastic stretching member 5 that applies tension to the transparent film 4. It's glass.

The transparent plate 1 in the present invention is an inorganic or organic transparent plate. Examples of the material for the inorganic transparent plate include glass, and examples of the material for the organic transparent plate include acrylic resin, vinyl resin, polycarbonate resin, and the like.

Among these, glass plates are preferred for reasons of chemical durability or physical durability.

The thickness of these transparent plates used is 1 mm to 10 mm, preferably 2 mm to 5 mm. Number of sheets used is 2
The number is not limited to three, and may be three or more.

Furthermore, although the present invention describes a transparent plate 1 that is light-transmissive, for example, when two plates are used, one plate is made of opaque or translucent material such as ground glass, and the remaining plate is made of opaque or translucent material such as ground glass. It can also be used for double-glazed glass made into a transparent plate (that is, double-glazed glass used in cases where it is difficult to see the inside from the outside, such as windows used in bathrooms, etc.). In addition, if multiple plates are semitransparent and the transparent film stretched inside is even faintly visible, the method of the present invention can be used to effectively utilize them without wrinkles or sagging. I can do it.

Apart from these, by making the transparent film 4 opaque or translucent, the entire double-glazed glass can be made opaque or translucent. In this case, when the transparent plate 1 is used, the method of the present invention According to
It is also possible to obtain double glazing that is stretched without wrinkles or sagging.

A conventionally known sealing member is used as the sealing member 2; examples include a silicone sealant, a butyl rubber sealant, a polysulfide sealant, and the like. These seal members can be used alone,
Or it can also be used in combination of two or more types.
"Sealing the space between the transparent plates 1 at the periphery thereof" means, for example, an embodiment such as the sealing member 21 in FIG. 1.

The jigs 3 have the function of a spacer for setting the interval between the transparent plates 1, but they also have the function of a support for the transparent film 4.
Moreover, they also have the function of supporting the elastic tension member 5 at the same time, and are divided into a plurality of parts (see FIGS. 1 to 6). The overall thickness of the jig 3 is the same or approximately the same as the interval between the transparent plates, but having approximately the same thickness means that the jig 3 functions as a support for the transparent film 4 and has an elastic tension member. Since it has the function as a support body of No. 5, it means that it has a margin to perform that function. For example, it means having necessary margins such as "thickness of the film" and "thickness of the adhesive layer." The jig 3 will be further described later.

The transparent film 4 extends over substantially the entire area of the transparent plate 1 with a space between it and the transparent plate 1, and is placed parallel to the transparent plate 1 in principle. The transparent film 4 may be supported by its own support frame, or by the jig 3 described above. In particular, since the jig 3 is divided, it is preferable that a portion of the jig 3 function as a support for the transparent film 4.

Examples of the transparent film 4 include polyolefins such as polyethylene and polypropylene; aromatic polyesters such as polyethylene terephthalate and polyethylene naphthalate; polycarbonate;
Films of organic compounds such as vinyl halides such as vinyl chloride, vinylidene chloride, and vinylidene fluoride; polyamides such as nylon-6 and nylon-6.6 are preferably used. In particular, a biaxially stretched film of polyethylene terephthalate is preferably used from the viewpoint of strength. In addition to these simple transparent films, it is also possible to use a laminate in which a plurality of these transparent films are stacked one on top of the other. Furthermore, it can be a transparent film that has been colored or otherwise processed. The coloring is carried out to the extent that the transparency of the film is not lost.As for other processing, the surface of the transparent film 4 is roughened so as not to lose the transparency of the film, and an appropriate amount of scattered light is generated. The transparent film 4 is made by vapor-depositing a metal (for example, aluminum) on a polyethylene terephthalate film or the like to adjust the amount of light transmission. Examples of the transparent film 4 for improving heat insulation include a transparent heat insulation film in which a thin layer of metal, metal oxide, and/or dielectric material is provided on a polyethylene terephthalate film or the like to impart transparent heat insulation properties. Such a transparent heat insulating film can be obtained by laminating a thin layer of metal, metal oxide and/or dielectric material on one or both sides of a plastic film.

"Film" as the transparent film 4 means "having flexibility at room temperature", and the present invention can be used with any thickness of the above film, but it is particularly suitable for use with thin films. gives favorable results.

Metals include gold, silver, gold-silver alloys, silver-copper alloys,
Gold-copper alloys, platinum-silver alloys, platinum-silver-copper alloys, and gold-silver-copper alloys are preferably used.

Metal oxides include In ₂ O ₃ , SnO ₂ and
Cd ₂ SnO ₄ and the like are preferably used, but are not necessarily limited to these.

High refractive index dielectrics that are sometimes used in combination with these metals or metal oxides have a refractive index of
It is a transparent dielectric material with a dielectric strength of 1.6 or more, preferably 1.8 or more, such as titanium dioxide, titanium oxide, bismuth oxide, zinc sulfide, tin oxide, and indium oxide.

As the film on which these thin layers of metal, metal oxide and/or dielectric material are laminated, the conventionally known transparent plastic film mentioned above is used, and from the viewpoint of dimensional stability and mechanical strength, biaxially stretched polyethylene terephthalate film is used. is preferred.

Of course, a top coat layer may be provided on the processed layer in order to improve wear resistance and optical properties.

The elastic tensioning member 5 is located inside the jig 3 and presses the transparent film 4 to apply tension to the transparent film 4, and can itself be a soft elastic body or a hard one. It is also possible to use the material in a special form, such as a foam, a hollow body, or a spring-like body.

A fixture 6 is located inside the seal member 2,
A jig 3, which is a support for the elastic tension member 5 and/or the transparent film 4, is provided for the purpose of preventing the elastic tension member 5 and/or the transparent film 4 from spreading due to the restoring force. Fixture 6
The jig 3 may be held in place so as to wrap around the jig 3, or it may be firmly fixed by screws, screws, or the like.
The material is not particularly limited, but metal, plastic, etc. are preferable because they can be easily manufactured. The fixture 6 may be attached over almost the entire peripheral area of the transparent plate 1 where the jig 3 is located, or may be attached partially.

That is, when the fixture 6 is made of a heavy material, partial fixation is preferable because the double-glazed glass is lightweight, but when it is made of a light material, it is preferable because it is lightweight even if it is provided almost all around. Although it can be said that the strength of the fixture 6 is sufficient and good if it is attached almost all around the circumference rather than partially, it is not necessarily necessary to attach it all the way around from the viewpoint of workability.

Preferably, the air sealed within the double glazing is dry air. In addition, it is preferable to introduce other gases such as argon, SF ₆ , CO ₂ , N ₂ or the like instead of dry air from the viewpoint of weather resistance of the stretched transparent film 4 and elastic stretchable member 5.

The present invention will be further explained below with reference to the drawings.

FIG. 1 is a partially cutaway perspective view showing the basic configuration of the present invention. In the figure, reference numerals 11 and 12 indicate transparent plates, and jigs 31 and 32 set the interval between the transparent plates, and a transparent film 40 is stretched between the transparent plates 11 and 12 by a film support frame 71. The film support frame 71 is located within the recess of the jig 31 and may or may not be fixed to the jig 31. The transparent film 40 is pressed by an elastic stretching member 51 attached to the jig 32, and tension is applied to the transparent film 40. And jig 31,3
2 is fixed by a fixture 61 so as to wrap around them.

FIG. 2 is a sectional view of another embodiment showing only the portion corresponding to A in FIG. 1. In this example, a spring-like member is used as the elastic tensioning member 51.

In FIG. 3, a jig 31 has a function as a support for a transparent film 40, and a jig 32 has a hollow shape, and a part with a notch is used to fix an elastic tension member 51. ing. At this time, the jig 31 may be hollow.

In each of the above examples, the elastic expansion member 51 is exposed to the light rays incident from the transparent plates 11 and 12. Depending on the material of the elastic tension member 51, it may be deteriorated by sunlight, and to prevent this, it is preferable to protect the elastic tension member 51.

FIG. 4 is a side end sectional view of the present invention showing an example of the above embodiment. The elastic tensioning member 51 shown in the figure has a hollow shape, and is installed in the recess of the jig 32. The protrusion 102 forms a concave portion of the jig 32 and prevents the light beam from hitting the elastic expansion member 51. The jig 31 has a similar protrusion 101, which cooperates with the protrusion 102 to prevent the light beam from hitting the elastic expansion member 51. The transparent film 40 is fixed to the jig 31 through the gap between the protrusions 101 and 102. 80 indicates an adhesive.

FIG. 5 shows an example in which the jigs 31 and 32 have separate recesses 92, and the protrusion 91 of the fixture 61 is fitted into the recess 92 to prevent the fixture 61 from coming off. Of course, fixture 61 and jig 3
It goes without saying that the convex portion 91 of the fixture 61 and the concave portion 92 of the jigs 31, 32 are unnecessary when inserting adhesive into the gap between the adhesives 1 and 32 to prevent it from coming off. . In addition, the elastic tension member 51 in the figure
itself uses a relatively soft elastic body.

FIG. 6 is a partially cutaway perspective view of the double-glazed glass when the fixture 61 is partially attached.
In the figure, the width of the fixture 61 is the same as that of the jigs 31 and 32, so the adhesive surfaces of the jigs 31 and 32 are at the position 80 in the case of the jig 32.

FIG. 7 is a side sectional view showing an example of application of the method of the present invention. In the figure, the transparent film 41 is placed on the jig 31.
Also, the transparent film 42 is fixed to the jig 32 and the jig 3
The convex portions 101 and 102 of numbers 1 and 32 prevent the elastic tension member 51 from coming off. Fixture 61
jigs 31 and 32 are fixed to obtain double-glazed glass in which two transparent films 4 are stretched.

FIG. 8 is a side end sectional view of an example of an embodiment that solves the problem that the elastic expansion member 51 is exposed to the light rays incident through the transparent plates 11 and 12 in FIG. 7. In the figure, two transparent films 41 and 42 are fixed to a film support frame 71. The film support frame 71 may or may not be fixed to the jig 31 and/or 32, but this figure shows an example in which it is not fixed. The elastic expansion members 51 and 52 are located in the recesses formed by the convex parts 101 and 102 of the jigs 31 and 32, and give elasticity to the transparent films 41 and 42 fixed to the film support frame 71. Since two elastic expansion members are used, the fixture 61 must be firmly attached. For this purpose, it is possible and preferable to use a method as shown in FIG.

9 and 10 show screws 6 as the fixing device 6.
2a, 62b and a screw 63 are shown.

As can be seen from the above illustrated example, it will be easily understood that the double glazing produced by the method of the present invention has excellent weather resistance.

That is, the method of the present invention requires durability as double glazing. It can be used for building windows, train windows, greenhouse windows, etc., windows for freezing and refrigerating cases, and viewing windows for electric ovens, etc. In addition, because of its durability, the door of a refrigerator or the like that normally uses an opaque heat insulating plate can be used as a transparent door with high heat insulating properties by using a transparent heat insulating film.

[Brief explanation of the drawing]

1 and 6 are partially cutaway perspective views of the multi-layer window of the present invention. Figure 2 - Figure 5 and Figure 7 -
FIG. 10 is a sectional view of various embodiments showing only a portion corresponding to section A in FIG. 1. In each figure, 11 and 12 are the transparent plate 1, 21 is the sealing member 2, and 31 and 32 are the jigs 3, 40, 41, 42.
The transparent films 4, 51, 52 are the elastic expansion members 5, 61, 62, 62a, 62b, 63 are the fixtures 6, 71 is the transparent film 4 support frame, 80 is the adhesive, 91 is the convex part of the fixture, 92 is a concave portion of the jig 3, and 101 and 102 are convex portions for blocking light beams.

Claims (1)

[Claims] 1 (a) A plurality of transparent plates 1 facing each other with a space between them; (b) A sealing member that is located between the transparent plates 1 and seals the space between the transparent plates 1 in the peripheral area thereof. 2; (c) a jig 3 that is inside the sealing member 2 and is divided into a plurality of parts having the same or approximately the same thickness as the interval between the opposing transparent plates 1; and a fixture 6 that tightens them together; (d) a transparent film 4 stretched over substantially the entire area between the transparent plates 1; and (e) an elastic tensioning member 5 that applies tension to the transparent film 4.