JPS6234703B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to double glazing, and more particularly to:
It relates to double glazing having a film stretched therein.

Ever since oil shocks, the issue of energy conservation has come into sharp focus, 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-paned 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. Although this objective can be achieved by further increasing the number of glass plates, etc., as described above, this method has the disadvantage of unnecessarily increasing the weight of the device itself.

In order to avoid such inconveniences, attempts are being made to install a transparent film inside the double-glazed glass, but with this method, it is difficult to spread the transparent film uniformly, and further improvements are desired. There is.

As a result of intensive research into means for uniformly spreading a transparent film inside double-glazed glass, the present inventors found that
By pressing the transparent film with an elastic body around the periphery of the double-glazed glass, it is possible to apply appropriate tension to the transparent film, thereby achieving uniform expansion over almost the entire transparent area. We discovered what we could do and arrived at the present invention.

That is, the present invention provides: (a) a plurality of transparent plates 1 facing each other with a space in between; (b) a plurality of transparent plates 1 located between and around the transparent plates 1 and sealing the space between the transparent plates 1; Seal member 2; (c) An integral or divided jig 3 that is located inside the seal member 2 and has the same or approximately the same thickness as the interval between the opposing transparent plates; (d) The above transparent jig 3; a transparent film 4 stretched over substantially the entire area between the plates 1; and (e) an elastic stretching member 5 that presses the transparent film 4 at its periphery to apply tension to the transparent film 4. At least consists of double glazing.

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 chloride resin, polycarbonate resin, etc. be done.

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

The thickness of these transparent plates is not particularly limited, but is usually 1 mm to 10 mm, preferably 2 mm to 5 mm. The number of sheets used is not limited to two,
It may be three or more.

Furthermore, although the present invention describes a transparent plate 1 that is transparent to light, 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 It can also be used for double-glazed glass with 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.). Furthermore, if multiple plates are semi-transparent and the transparent film stretched inside is even faintly visible, the method of the present invention can be used to effectively utilize the film without wrinkles or sagging. can.

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, and examples thereof include silicone-based sealants, butyl rubber-based sealants, polysulfide-based sealants, and the like. “Located between the transparent plates 1, located around the periphery, and sealing the space between the transparent plates 1”
means, for example, an embodiment such as the sealing member 21 in FIG.

The jig 3 has the function of a spacer for setting the interval between the transparent plates 1, but can also serve as a support for the transparent film 4 at the same time. When the jig 3 has only the function as a spacer, it is convenient to be integral, but when the jig 3 has the function as a support for the transparent film 4 or the function as a support for the elastic tension member 5, it is convenient. If it also has a plurality of parts, it is preferable that it is divided into a plurality of parts (see FIGS. 3 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 it functions as a support for the film 4.
Alternatively, when it has a function as a support for the elastic tension member 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, but may also be supported by the jig 3 described above. In particular, it is preferable that the jig 3 is divided into parts, one part of which functions 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;
Vinyl halides such as vinyl chloride, vinylidene chloride, and vinylidene fluoride; films of organic compounds such as polyamides such as nylon 6 and nylon 6.6 are preferably used, and from the viewpoint of strength etc., biaxial films of polyethylene terephthalate are particularly preferred. A stretched film is preferably used. 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. Alternatively, it may be a transparent film that has been colored or otherwise processed. The coloring was done to the extent that the transparency of the film was not lost.As for other processing, the surface of the transparent film 4 was roughened so as not to lose the transparency of the film, and an appropriate amount of scattered light was applied. The amount of light transmitted can be adjusted by adjusting the amount of light transmitted, or the transparent film 4 can be made by depositing a metal such as aluminum on a polyethylene terephthalate film or the like to adjust the amount of light transmitted. Examples include those processed into. Also,
Examples of the transparent film 4 for further improving heat insulating properties include transparent heat insulating films in which a thin layer of metal, metal oxide and/or dielectric material is provided on a polyethylene tetophthalate film or the like to provide transparent heat insulating properties. . Such a transparent heat insulating film can be obtained by laminating a thin layer mainly of metal, metal oxide and/or dielectric material on one or both sides of a plastic film.

What is the “film” as transparent film 4?
It means "having flexibility at room temperature," and although the present invention can be used with any of the above-mentioned thicknesses, it gives particularly favorable results when used with thin films.

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

Metal oxides include In ₂ O ₃ , SnO ₂ and Cd ₂ SnO ₄
etc. 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 include
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, on top of the above-mentioned processed layer, there are improvements in wear resistance,
A top coat layer may be provided to improve optical characteristics.

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 may itself be a soft elastic body, or It is also possible to use a hard substance in a special form, such as a foam, a hollow body, or a spring-like body.

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 a spacer 31 sets 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 61. This transparent film 40 has an elastic tension member 51
is pressed and tension is applied.

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, the jig 3 is divided into two parts 31 and 32, where 31 also functions as a support for a transparent film 40, and 32 also functions as a support for an elastic tension member 51. .

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 is possible that it may deteriorate due to 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. In the figure, reference numeral 51 denotes a hollow elastic expansion member, and this elastic expansion member 51 is installed in the recess of the jig 31. The protruding portion 81 forms a recessed portion of the jig 31 and prevents the light beam from hitting the elastic expansion member 51. The jig 32 has a similar convex part 82, which cooperates with the convex part 81 to direct the light beam to the elastic expansion member 5.
1 is prevented. transparent film 40
The jig 3 passes through the gap between the convex parts 81 and 82.
It is fixed at 2. 70 indicates an adhesive.

FIG. 5 is a partially cutaway perspective view of the double glazing of the embodiment of FIG. 4.

FIG. 6 has substantially the same configuration as FIG. 4, but the jigs 31 and 32 can be fitted into each other. Further, the elastic tensioning member 51 itself is made of a relatively soft elastic body.

FIG. 7 is a side sectional view showing an example of two transparent films 4 stretched using the method of the present invention.
In the figure, the transparent film 41 is attached to the jig 31, and 42 is attached to the jig 31.
It is fixed at 2. The elastic tension member 51 is attached to the convex parts 81 and 82 of the jigs 31 and 32 to prevent it from slipping.
It is stopped by.

Although the transparent films 41 and 42 are separated in FIG. 7, they may be almost in contact with each other by changing the height of the protrusions. In this case, the transparent plate 11,
Although the elastic expansion member 51 is not exposed to the light beam incident through the light beam 12, it is exposed in the state shown in FIG.

FIG. 8 shows two parts of the transparent film 4 shown in FIG.
An example of another embodiment in which the sheet is expanded is shown. In the figure, transparent films 41 and 42 are fixed to a film support frame 71, and the support frame 71 is prevented from shifting inward by the protruding portions of the support frame. The elastic expansion members 51 and 52 are located in the recesses formed by the protrusions 81 and 82 of the jigs 31 and 32, respectively.

In FIGS. 7 and 8, if the protrusions 81 and 82 themselves exhibit elasticity and are integrated with the jigs 31 and 32, the elastic tension members 51 and 52
Needless to say, is unnecessary.

As can be seen from the above-mentioned illustrated examples, the double-glazed glass of the present invention is suitable for use as a window because the transparent film does not wrinkle or sag even when used in places with temperature differences.

In addition, when the transparent film 4 becomes thin to a certain extent, it exhibits some heat insulation properties as double-glazed glass, but when a transparent heat insulation film is used as the transparent film 4, it exhibits extremely high heat insulation properties.
In addition, the transparent film 4 does not sag or wrinkle even when used in places with large temperature differences, so it can be used for windows in freezer and refrigerator cases, greenhouse windows, building windows, train windows, electric ovens, etc. It can be said that it is preferable if Of course, it goes without saying that it can be effectively used in places other than those exemplified above, where insulation is required, such as transparent refrigerator doors.

[Brief explanation of the drawing]

1 and 5 are partially cutaway perspective views of the double-glazed glass of the present invention. 2 to 4 and 6 to 8 are cross-sectional views of section A in FIG. 1. In the figure, 11, 12 are transparent plates, 21 is a sealing member, 31, 32 are jigs, 40, 41, 42 are transparent films, 51, 52 are elastic expansion members, 61, 6
2 is a film support frame, 70 is an adhesive, 81, 82
represents a light ray blocking convex portion.

Claims (1)

[Scope of Claims] 1 (a) A plurality of transparent plates 1 facing each other with a space between them; (b) Located between the transparent plates 1 and located on the periphery thereof, sealing the space between the transparent plates 1; (c) A jig 3 which is located inside the seal member 2 and is integral or divided into a plurality of parts and has the same or approximately the same thickness as the interval between the opposing transparent plates 1; (d) (e) an elastic stretching member 5 that presses the transparent film 4 near its periphery and applies tension to the transparent film 4; Double glazing consisting of at least.